Professional manufacture of superior steel silos - Flyer: lime silo

Professional manufacture of superior steel silos - Flyer: lime silo: Lime steel silo is one of the most commonly used methods for the storage of lime. Lime is rigid inorganic gelled material and calcium oxid...

BUY GRAIN SILO FROM FLYER

On Mar 13th, 2016, Flyer Steel Silo Co., Ltd. led the customers from Kazakhstan, Mr. Zokirov and his friend, to visit our silo project. Since they came for grain storage silo, we arranged them to visit our grain silo project in HEBEI BAIYUDONG FLOUR MANUFACTURING CO.,LTD., which is located in Shahe county, Xingtai city, Hebei province. Founded in 2012, BAIYUDONG is a large flour milling factory with several branches in Hebei and Shanxi province. There are 14 silos in their head factory, among which the maximum storing capacity is 4000T and the minimum one is 500T. All the silo projects in the head factory, along with all the silos in other branches, are manufactured by Flyer. In the early 2016, BAIYUDONG plans to increase another 33 grain silos, and now the plan is under arrangement with Flyer.

Mr. Zokirov is an expert on flour complete set equipments. He also has 20 years’ experience in steel silo manufacture. During visiting in the factory, Mr. Zokirov focused on the design, construction technology and equipments installation of the silo project. He even went into the foundation of the silo to inspect the internal structure in person. After visiting the factory, Mr. Zokirov spoke highly of our design and construction work. He showed the engineer the specifications and requirements on design about their proposed silo, and indicated that he would be happy to come to China again for a in-depth discussion on this project.

We admire Mr. Zokirov and his friend very much for their professional dedication. We will make schematic drawing according to the requirements of Mr. Zokirov as soon as possible. Sincerely, we expect that Mr. Zokirov and his friend will come to visit our factory again for our further cooperation in the near future.

About us

OUR FACTORY

Founded in May, 2007, Flyer Steel Silo Co., Ltd is committed to become China’s leading integrated service providers in silo storing industry. Specializing in the storage technology of the silo, Flyer provides a series of sustainable solutions for the various aspects of storage projects, including product design, manufacturing, installation and maintenance.

Located in Demonstration Garden of Advanced Equipment Manufacturing demonstration park in Anyang High-tech Zone, Flyer , as top 3 of steel silo industry, covers an area of 30 acres, with 7000 square meters of production workshop, and more than 3000 square meters of office building. With registered capital of 20 million RMB and over 100 million RMB of total assets, Flyer has now more than 300 employees. The product portfolio of Flyer covers various industries, such as the construction materials, chemicals, grain and oil, slag and fly ash and sewage treatment as well. 

Flyer aims to be top brand in the industry. Adhering to the value of integrity, sound, innovation, Flyer is willing to carry out the obligations and responsibility, achieve common development with business stakeholders, and grow as excellent corporate citizen.

What's more, Flyer has earned the secondary qualification in steel structure engineering contracting , the ISO quality management system certification, and the independent import and export business qualification. Below is the video of the process of building steel silo by us.

Why choose us?

Strong technical strength: 

With superior German steel silo equipment and professional expertise, Flyer is specialized in research, development, design of all kinds of material storage technology and the selling & maintenance of other related products. Meanwhile, Flyer gains the secondary qualification for the construction of steel structure, and undertakes projects within the scope of its qualification grade certificate. Flyer promises not to be subcontractor, or sub source any project illegally. Flyer owns rich experience on building steel silo with diameters of 15 meters, 16 meters and 18 meters, which are also mature on steel silo construction for decades. With professional team, Flyer can provide you with the most advanced, economical and suitable technical services.

Superior construction equipment: 

Flyer owns 23 sets of model equipment of steel storage with higher processing precision, stronger undercut strength, and more accurate shape. Besides, we are also equipped with a range of professional machines which specialized on steel silo manufacturing,  such as roller, shearing machine, bending machine, cutting machine , which contributes to be more stable and reliable to the silos.Rich experience in construction: 

Flyer believes in the motto of "Elite Creates the Best" and gathered a large number of professional engineers who engaged in the industry for nearly 20 years. All construction team are formal staff in the company, and all of the technical elites have taken systematic training. Thus, Flyer ensures high standards of construction quality. 

High quality of construction material: 

The main material for the Flyer steel silo is hot rolling double galvanized coil, which is supplied by Handan Iron and Steel company, and the 4.0 coil is supplied by a Iron and Steel Company in Tianjin, is excellent in anti-corrosion. Other construction materials are also selected high quality steel of national standards. We firmly believe “Good quality of material fundamentally guarantees good quality of the product”.

Strict quality inspection:

Insisting on quality-oriented, Flyer adheres to provide personalized service. Every link of the project is under strict quality supervision based on the company and national standards. Strictly following all standards, Flyer guarantees the quality of the project from design, preparation, prefabricated to  on-site installation.

Competitive price

Flyer purchases raw materials directly from the Handan Iron and Steel Co., Ltd, and completes the preliminary processing with precision machinery in our factory. Thanks to this, the construction period could be greatly shortened and the cost of labor could be largely reduced.

Convenient  transportation

Flyer enjoys developed transportation since it is located in a junction among Hebei, Shandong and Henan province, and very close to the port for import and export.

Attentive after-sales service

Flyer provides whole plant planning, consulting, project design, equipment installation, commissioning, maintenance, training and other services for customers for their flexible options. Our after-sale service center is ready to meet customers’ needs of full range of services to free them from any worries.

How to protect chemical tank from corrosion?

Chemical storage tanks are mainly used for storing chemicals. Different from grain bins and cement silos, chemical properties of chemical tank surface must be stable so that it can’t react with chemicals. Chemical containers can be classified into different sizes and shapes, and they can be used to stationary storage, processing, or other purposes. Chemical storage tanks can be store gasoline, diesel, propane, liquefied gas and other dry bulk chemicals. They are usually utilized at industry sites, farms, and gasoline stations.

Chemical tanks can be classified into two types: underground chemical tank and above-ground chemicals silo, these two types are widely used in the field of industry.

Underground Chemicals Storage Tank

Underground storage tank is a nice choice for maximizing the property use, because it can be constructed underground, whether under lawns or gasoline stations. Installation under the ground reduces the risk of fire and explosion and prevents the tanks from natural disasters such as hurricanes and tornadoes. But the underground tanks containing petrol or other dangerous chemicals may leak. And it will contaminate the soil and the ground water. This posts the health of local residents and home nearby into great danger. Therefore, it is vital to inspect the tank after the installation.

Above- ground Chemicals Storage Silo

Above-ground chemicals storage tank, also called above-ground chemiclas storage silo, is suitable for storing chemicals and fuels in bulk. It is also widely used owning to the low cost and easy installation. Compared with underground container, it is easily to check for the leaks and carry out the repairs. But the disadvantage is that it may be influenced by the environmental conditions such as fire, whether and explosion.

Coating Technologies of Chemical Storage Tank

There are many kinds of industrial liquid chemicals need to be stored and processed. Each has different properties and may corrode the surface of the containers. Coating technologies is applied to the installation of storage tanks to resist corrosion. Coatings of the tanks provide corrosion and abrasion resistance to the stored chemicals. They can extend useful life and reduce maintenance cost of chemical containers. Coating technologies include epoxy coating, glass fused-to-steel, high heat coatings, cold weather coatings and etc. Galvanized storage silo is also popular, and it is suitable for storing block or dry bulk chemicals.

Epoxy coating is most commonly used in the coating technologies whether for the storage of liquid or dry bulk. When applied in use, epoxy coating comes to a good effect without any trace of breaking and tearing.

Coatings play an important factor in securing the safety of tanks and chemicals. Some coatings are applied to the storage of a large number of products. Before putting into use, the most important thing is ensuring that the coating tank is suitable for the application. Some coatings may react with certain products. In addition, the requirement of liquid storage tank is more stringent than that of dry bulk storage tank.

Before using an old tank to store a new products, remember to test and inspect whether it is suitable for the application. Be sure that the tank can resist the corrosion. Incorrect use of a tank may cause huge losses.

Coating technologies not only protect storage tanks, but also prevent the environment from being polluted. The use of coating is the long term plan for the manufactures and owners. The development of coating technology is the integral parts in the industry of tanks. Corrosion control of chemical containers is vital, and it must corporate related knowledge and the practice. Those professionals must recognize the early signs of corrosion and maintain the tanks immediately to ensure the effective protection of environment and the economic interest.

Both underground chemical storage tank and above-ground chemical storage tank all could leak harmful substance. Which may contaminate our soil and water, pollute the environment and do harm to our health. In one word, corrosion is to blame. We should try our best to engage in the control of corrosion. With the help of coating technology, people can protect the environment and improve the economic interest effectively.

Steel silo market and economic analysis of Indonesia

Economic Situation of Indonesia

Indonesia is the largest economy of ASEAN. Agriculture, industry and service industry all play important roles in the national economy. Facing with the international financial crisis, the Indonesian government has dealt with it properly, so the economy is still keeping rapid growth since 2008. In recent years, Indonesian manufacturing industry is growing faster than the economy.

Local Resources

Indonesia is rich in oil, natural gas and coal, tin, bauxite, nickel, copper, gold, silver and other mineral resources. Mining industry occupies an important role in economy, the output value accounts for around 10% of GDP. According to official statistics, there are 9.7 billion barrels of oil reserves (1.31 billion tons), gas reserves from 4.8 trillion to 5.1 trillion cubic meters, 19.3 billion tons of proven coal reserves and over 90 billion tons of potential reserves. In2012, the daily output of crude oil can reach 867000 barrels.

Industry

The industrial development direction is to strengthen the export-oriented manufacturing industry in Indonesia. The main departments are mining, textile, light industry, etc. Tin, coal, nickel, gold, silver and other mineral output stands forefront in the world. With annual output of 386 million tons of coal, 1.116 million sets of car sales, motorcycle sales of 7.14 million units; Textile exports to $12.5 billion in 2012.

Agriculture

Indonesia's total arable land area is about 80 million hectares. In 2012, the rice output is 69.05 million tons, of which maize yield is 19.38 million tons and soybean production is 851.6 thousand tons. Indonesian mainland is also rich in commercial crops. The output of palm oil, rubber, coffee and cocoa are respectively about 25.2 million tons, 3.04 million tons, 25.2 million tons, 904000 tons.

Fishery

Indonesia fisheries resources are rich, overfishing of 8 million tons a year.

Transportation 

The important means of transport in Indonesia are highway and waterway, of which highway shoulders take up nearly 90% of passenger and 50% of freight. In Indonesia, rail infrastructure is relatively backward, and railways are only between Java and Sumatra island. However, the airlift develops rapidly in the recent 10 years.

 

Foreign Trade

Foreign trade in Indonesia occupies important position in national economy, the government adopted a series of measures to encourage and facilitate the export of oil and gas products such as simplify the export formalities, lower tariffs. Indonesia's main export products are oil, natural gas, textiles and clothing, wood, rattan products, handicrafts, shoes, copper, coal, pulp and paper products, electrical appliances, palm oil, rubber, etc. Main imported products are machinery and transportation equipment, chemical products, automobile and spare parts, power generation equipment, steel, plastic and plastic products, cotton, etc. In 2012, Indonesia's main trading partners are China, Japan, Singapore and the United States.

Foreign Capital

Foreign capital in Indonesia plays an important role in promoting economic development. The Indonesian government attaches great importance to improve the investment environment, attract foreign capital. The main investors are Singapore, Japan, the United States, Britain, South Korea.

Foreign Aid

Indonesia's foreign aid is mainly composed of "aid Indonesia consultative group", the international monetary fund (IMF), the world bank and Japan, the United States.

Indonesia Steel Silo Market

Overall, there is few steel silo manufacturing enterprises in Indonesia. Most of the existing steel silos are imported. Storage silos in Indonesia are mainly used in cement building material industry, and the technology is still relatively backward. Adopting advanced technology, steel silo produced in Indonesia can be used for storing food, oil, chemicals and building materials.

Under the push of relevant government positive policy, Indonesia's economic develops fast, which ranks in front of the development countries. Because of its abundant mineral, agricultural resources, the corresponding related industrial enterprises get rapid development. Combined with local backward storage technology, steel silo instead of concrete silo is an inevitable trend. They estimate that Indonesian market is in great need of steel silos. Such as oil, coal, grain, oil, rubber, coffee and other related industries, these all need steel silo for reserves, five kinds of main products of Flyer can exactly meet these requirements.

Flyer steel silos rely on abundant technical strength, excellent performance, unique construction method, special equipment for construction, mechanical work, the silos owns good quality and pretty valuation. The material we use is high strength hot rolled two-sided galvanized coil plate, with the most advanced spiral bending technology. Our product possesses beautiful appearance, stable structure, resistance to corrosion, high air tightness and can be used widely. In addition, the Flyer steel silo owns the top features of short construction period, low cost, long service life. Steel silo’s height, diameter can be chosen in a larger scope. Capsule 3-28 m in diameter, height can reach 35 m. Minimum distance between two positions is 500 mm, which can make full use of space and reduce floor area. The steel silo we build has high degree of automation, user can manage it conveniently. With high quality pre-market and after-sales service, Flyer can sweep away all the trouble back at home for you. Flyer steel silo will be your best choice.

Professional manufacturer of superior quality steel silos - Flyer: chemicals storage silo

Professional manufacturer of superior quality steel silos - Flyer: chemicals storage silo: CHEMICALS STORAGE SILO Chemicals storage silos are widely used in chemical industry for the storage of carbon black, activated carbon, c...

Sewage tank plays a key role in sewage treatment

SEWAGE TANK PLAYS A KEY ROLE IN SEWAGE TREATMENT

Sewage tank can be used for storage of sewage and industrial wastewater as well as biogas. It’s also widely applied to storage other industries, such as light industry, waste water treatment and environmental protection. Facing the gradually serious water environment pollution which resulting all sorts of social contradictions, the situation does not permit of any delay.

Status of American sewage treatment

The federal government organizes the relevant departments of professionals to study and formulate the strategic planning of the urban sewage treatment facilities construction, and establish the promotion objectives, requirements for the construction of sewage treatment facilities, the investment plans and incentives, and launched a national urban sewage treatment popularization movement.

Every day, wastewater and sewage from family, schools, enterprises and factories will be flushing, and then flows into New York City's sewer system. The rain and melting snow water runoff into the sump tank on the street, and from there flow into the sewer.

Although a series of sound policy had been carried out, there are still various problems. It was reported that the city Holly Oak which located in southwestern of Massachusetts, America, had been fined $40000 for violating Sewage disposal regulations. Holly Oak, a manufacturing center city, is famous for paper production.

Wastewater storage tank

A lot of sewage is produced every day, if we can’t deal with it in time, which may cause environmental pollution. Therefore, it is necessary to use the sewage tank to store the wastewater. What’s more, wastewater and sewage from family, enterprises or factories suit for different sewage tanks.

Advantages of Flyer sewage tank

1. Superior special material

Flyer insists on producing galvanized steel water tanks. We use high quality galvanized sheet which is supplied by Handan Iron and Steel Company. The sheet we used is in uniform thickness and galvanized with 275g/㎡of zinc with high corrosion resistance. The materials we used are purchased directly from the manufacturer and they are all well-known brands.

2. Advanced technology and equipment

Flyer uses professional equipment to manufacture the sewage tank. With special equipment for bending and seaming, the quality of sewage tank is guaranteed.

3. Professional free design

According to the owner’s requirements, we can provide the free design and submit a detailed construction schedule so as to ensure to complete construction in time.

4. Experienced team players

We have professional team players. The workers of our company all have rich experience and expertly skill. We also provide training regularly for workers.

5. Lower water storage tanks prices

Using the advanced technology and equipment, we can provide a shaping speed of 3-5m per minute. We use bilayer bending method to bend and shape two different sheet materials at one time, so the cost for storing strong corrosive materials in chemical industry can be largely reduced.

6. Free detailed after-sales service

We provide regular service after the project is finished and remind our customers of possible problems in the course of using every three months. We provide a 1-year free maintenance after the project is delivered. We also collect advices or suggestions in product quality and the related services and guarantee a timely reaction for arriving at the scene in 36 hours after receiving feedback.

As the pioneer of environmental protection industry, America had achieved great improvement in wastewater treatment. Some of their policies and measures are worth our imitating, such as the new sewage treatment plant, sound water operation system, the government leading and enterprise complement, wastewater recycling and so on.

Throughout the sewage treatment in the United States, are experiencing the environmental and economic struggles in the tug-of-war. Fryer, however, as a part of environmental protecting action, the sewage tank we produced truly realize the combination of environmental protection and economy

Cement silo

Cement silo

Cement silo, also called cement bin, cemnet container or cement storage silo, is widely used for storing cement in cement production plants. Flyer steel silos are all spiral silos with abundant technical strength and prominent performance. With unique, manufacturing method, professional equipment, mechanized operation, Flyer cement storage silo is famous for its solid structure and durability.Cement silos are on-site storage containers used for the storage and distribution of various types of cement mixtures. Spiral steel silos for storing cement cannot be removed and they are widely used in industrial production. Silos of this type come in a variety of sizes, making them ideally used in many cement plants. Flyer is a professional manufacturer that produces high quality spiral cement silos and provides service from design, manufacture to install fitting according to the clients' requirements.

Flyer Cement Silo's Features

• Long service life: The thickness of spiral seaming edge is five times of the original steel plate, which greatly strengthens the resistance of the loading and prolongs the service life of silos. In addition, the durable cement silos also guarantee a low maintenance cost.
• Short construction period: Our seaming machine can provide a 3-5m per minutes' shaping speed. A cement silo with a capacity of 1000 tons could be constructed within 5-7 days.
• Low investment: Compared with concrete silo, spiral cement silo only needs several people and seaming machine.
• Moisture resistance: Our silos are constructed by special bending equipment, and the steel bending is tight with good sealing property. Cement inside the silos can't be influenced by the outside environment like wind and rain, etc.
• Galvanized cement steel silo: The surface of galvanized steel silo is smooth and the cement can’t adhere to inside wall of silo in block.

Cement storage silo's working principle

• Before constructing the cement silo, the bottle base of the silo must be erected by a dedicated crane and be placed on the prefabricated concrete foundation. Check out the perpendicularity of the erected silo and weld the base bottom of the silo with the embedded foundation firmly.
• After the cement silo is constructed, cement can be transported into the cement silo by the pneumatic pressure of bulk cement truck if the transport pipe of cement truck connects with the feeding tube of cement silo.
• During the transporting process, the operator must press on the button of dust vibration motor to shake off the cement attached on the bag of dust catcher. Otherwise the cement may block inside the bag, silo explosion may occur.
• If cement block the bag, the pressure inside the silo exceeds the security pressure of the relief valve, the relief valve will open up immediately to release pressure inside the silo.
• Cement storage system is usually installed with material level measuring system, it shows where the position of cement.

How to build a steel silo?

1. Prepare the necessary equipment for building steel silo based on the diameter of the silo.
2. Build the steel storage silo to the height of 2 meters or more, and then build the silo's roof.
3. Install steel silo's roof: using cutting machine to make the silo roof horizontal and then install the silo roof
4. Build the steel silo up to the designed height, and then pull out the machine, drop the silo on the ground, make the silo body connects with pre-embedded parts in the ground.

Why choose Flyer cement silo?

• 1. Selecting superior materials: High intense hot rolled double galvanized coil are used to ensure steel silo's combination of stability, anticorrosion, air proof and good looking.
• 2. Short construction period: Short duration can be guaranteed for the onsite construction during the whole procedure and for our professional equipment can provide a 3-5m per minutes' shaping speed, so a cement silo with a capacity of 1000 tons could be done within 5-7 days.
• 3. Saving resources: Cost-effectiveness can be achieved for light sheets are used for the whole silo which made it just as heavy as the rebar of concrete silo. Comparably small coverage that could narrow the separation distance down to 500mm for maximized space utilization.
• 4. Wide range of cement silos' sizes: Flexible choices on dimensions are provided in a range of diameters from 3m to 28m, and a height of 35m in theory to meet various demands.
• 5. Advanced technology and equipments: High automation, advanced loading and unloading equipments provide you great convenience on operation and management. With abundant technical strength and prominent performance, Flyer Steel Silos are extensively applied in NSP cement production line as well as its corollary grinding station, and obtain a large market share.
• 6. Good reputation: High reputation among customers has achieved as more than 4000 steel silos have founded in China cement industry, and several NSP cement production lines have been set up for some large cement group like Tianshan Group, Qilianshan Group, Tongda Group, Washi Group and etc.

With advanced technology, unique manufacturing methods, professional equipment and mechanized operations, Flyer has successfully built many high quality steel silos. And Flyer will try its best to establish superior-quality steel silos to meet your own requirements, too! Feel free to contact us.

How to store fly ash in commercial fields?

FLY ASH STORAGE SYSTEM | STEEL FLY ASH STORAGE SILOS

Fly ash silo introduction

What is fly ash storage silo? A fly ash silo is a kind of tank that widely used in commercial fields to store industrial powder. Flyer is a professional manufacture which produces high quality steel fly ash silos in China. Flyer can supply complete silo equipments for ash collection such as aeration, venting, level measuring equipments and different kinds of discharging facilities. We can provide complete design from small steel silos up to big storage silos with capacity of 5000 m³ made of stainless steel. We have different types of designs for silo aeration to ensure flow out of the silos in a proper level. The type and capacity of the aeration system can be different depending on the size of the silo and the shape of the silo bottoms, such as traditional conical bottom, flat bottom, inside cone bottom etc. The discharging arrangement can be also different depending on the shape of the silo bottom portion furthermore how many outlets are required. It is certain that, a proper pressure is a main factor that affects the safety of fly ash silo, so the fly ash storage silos also have to be equipped with level switches, level measuring equipment, safety devices (over pressure/under pressure valves) etc.

Traditional manufacture of fly ash system

Flyer provides complete design and installation of dry fly ash collection, conveyance and storage systems that will replace the wet collection and slurry systems found at many powder plants. Using industry proven mechanical equipment, Flyer will design the collection system to maximize the use of existing mechanical collection equipment and provide dry conveyance systems to transport the fly ash to newly installed steel storage silos. Because of our hands-on experience in marketing and management of fly ash, we can deliver the right equipment to meet the plant’s needs for a reliable ash collection system. Flyer provides an economical package that includes a flexible mechanical system that accommodates efficiency for fast loading of conditioned fly ash. In addition, this system provides efficient loading for dry fly ash tankers where market needs dictate dry fly ash loading. Flyer’s broad base of experience in handling all types of fly ash and all types of mechanical equipments has taught our engineering team where the capital and operating costs can be saved through the proper selection and design of efficient dry fly ash systems. We know that time is money when it comes to fly ash handling and the system design can dramatically reduce the plant’s capital expenses and operating expenses.

Steel silo discharge facilities

For many smaller discharging capacities, rotary feeders are widely used. But for the fly ash silos we prefer to offer our fluid discharging system. This fluid discharging system is simply designed that consists of pneumatically operated cut off gate and manual or motorized flow control gate.

Main equipments for silo discharging:

• 1. dry unloading chute equipped with venting system for the proper dust free loading of tank-trucks or rail tankers, usual capacity range from 80 to 150 TPH
• 2. conditioning unloader for dust free loading of open trucks or belt conveyor

In the inlet chute of the conditioning unloader, it is a weight balanced feeder that arranged to prevent the vapor going counter direction of flow. In some cases, if too much air is forced to the conditioning unloader from the aeration system, the unloader has to be equipped with additional suction. On this condition, an additional suction fan and a wet scrubber are necessarily equipment.

Normal discharging capacity range:

• 1. for twin shaft type conditioning unloader: 40-300 TPH
• 2. for rotary drum type conditioning unloader: 40-450 TPH

Large fly ash storage silo station

For some big power plants, large fly ash storage silos are necessarily equipment.

The biggest EWB reference is an ash storage silo complex including 2x5000 m³ fly ash storage silos and a 2x500 m³ bottom ash silo with the engineering and supply of the following technological parts:

• 1.flat bottom fly ash silo with expansion chamber equipped with aeration panels and venting pipes
• 2. proper venting system
• 3. fly ash silo discharge from central distribution box to mixing equipment and dry unloading via flow control device, flow measuring device and air slides
• 4. bottom ash silo with vibration feeder discharging facility

Why choose steel silos for grain storage?

ADVANTAGES OF STEEL SILOS FOR GRAIN STORAGE

There are so many methods of grain storage, such as steel grain silos, concrete grain silos, storage warehouses, bag silos and so on. Among them, steel grain silos and concrete grain silos are most widely used in grain storage systems. Before planning a new storage project, all the companies have to think about a question: which kind of grain storage system should I choose? Building a concrete silo, a steel silo or even a warehouse? As an answer of these questions, we will point out the key differences between steel grain silos and concrete grain silos.

Production process

All parts of steel silos are manufactured in factories, so that the quality can be totally guaranteed and controlled, whereas cast in place concrete silos involve more variables such as concrete delivery and weather. When building a concrete grain silo, you should have to bear in mind the useful life of concrete before use is less than 2-3 hours. After this period, the optimal characteristics of concrete would be changed a lot, which causes unnecessary waste of resource.

Grain silo Design

The slip frame concrete process is further complicated by the fact it is a dynamic or continuous process. Rebar placement, concrete quality, etc., all affect the final product. Also, field supervision plays a really serious part in concrete silos: more people working on site, longer period of commissioning (due to weather conditions and environment conditions) and, ultimately, higher costs.

Concrete silos can be taller than steel silos but these ones have bigger diameters so the total capacity is highest. For this reason concrete silos are only more suitable when the space is really limited. It is easier to erect steel silos and also to install accessories like doors, ladders, samplers, etc.

Steel structure is more flexible, which promises steel silos have better behavior in case of earthquake. When earthquake is coming, concrete grain silos may fall into ruins because of the loose structure, while steel grain silos won’t. So to be safe, steel grain silos are suitable for different geographical environment.

Regarding airtight, both structures of steel silos and concrete silos are normally airtight if the openings are properly sealed.

Construction Cost

Steel silos generally give you greater storage capacity per dollar. They tend to be more cost-effective because of the higher storage capacity. While the price of steel is higher than concrete, the construction of steel grain silo is much easier than concrete grain silo. What’s more, low maintenance cost is an important reason to choose steel grain silo.

Aeration Treatment

It is easier and more effective to do aeration in steel silos. Aeration horsepower is a non-linear function of grain depth. It is often impossible or impractical to provide the same airflow in tall concrete silos that could be obtained in shorter and wider silos (the case of steel silos). A higher grain depth also leads to a higher heat of compression in the aeration system. This means it takes a lower outside temperature to achieve the same grain temperature, making early aeration more difficult.

Grain Silo Foundation

When building steel silos, you don’t need the silo to be enough firm to support the weight of structure. Sometimes steel silos can be built on land that doesn’t have the higher load-bearing capacity needed for concrete.

There are many details and variables in silo projects and every type of grain storage has pros and cons.  The right choice is the one that fits in your infrastructure strategy and practical requirements.

What should you do first before building steel silos?

THINGS YOU SHOULD CONSIDER DURING STEEL SILO MANUFACTURING PROCESS

Flyer steel silo, with its continuous development of more than 30 years, has been quickly spread and popularized all over the world. As a new type of silo, steel silo is widely applied in each link during the process of grain storage and transportation, and has successfully become a symbol of modernization in both bulk and storage of grain industry. All the above achievements depend on the three superiorities of its functions.

Economy: Steel silo keeps the lowest construction cost among all types of silos, both for the silo body and the foundation, which is only half of the construction cost of concrete silo and four fifths of the brick-construction structure. It will steadily decline due to the decreasing price of steel.

Adaptability: Steel silo enjoys excellent performance on mechanization and automation of grain storage, such as grain harvest and transport, monitoring, management as well as the ventilating and temperature management of the condition of stored grain.

Establishment: Steel silo enjoys high establishing for its simple requirement on foundation, quick construction speed on establishing, and free from natural elements’ effects. After having investigated on the superiorities of steel silo, customers list following suggestions during its manufacturing:

• Materials: Commonly, steel silo is manufactured by popular models steel. Steel Q235 is the best choice for its convenient in purchase and low in cost. If the calculation thickness of steel exceeds the production capacity of equipment, low-alloy steel will be a better substitute. What’s more the steel is usually galvanized to meet the requirement of anticorrosion. Therefore, zinc coating becomes a vital factor of steel silo construction, which will directly effect on its serving life. China keeps the same standard of zinc coating with foreign countries which is 400g per square meters.
• Style: Spiral steel silo and assembly silo are two prevalent styles of thin-walled steel silo. Both of them possess their own features due to their different structures.
  The features of spiral steel silos are:
  1. It is manufactured by hot dip galvanized sheet so that the color of its undercutting is evenly.
  2. It can be applied for storing liquid materials like water and oil for its excellent performance on air tightness.
  3. The sheet used for spiral steel silo should be thicker than that for assembly silo for its internal wall is lubricated.
  The features of assembly silos are:
  
  1. It can be manufactured by both hot dip galvanized coil or sheet and galvanized sheet. So it is more convenient on purchasing material.
  2. All the components of the assembly silo are standard, so they are replaceable if damaged or rusted during its serving life.
  3. It is developable and transferable which can best meet the special requirement of customers who are renting field.
  4. Its pillar can be installed outside, which is favorable for grain storage.
  5. It can meet the standard requirement of air tightness after caulking by silicone because its own air tightness is unideal.
  6. It can be manufactured as double insulation construction with little increase on cost.
• Foundation: Basically, there are two types of steel silo foundation, plat form and hopper. Plat foundation silo is widely applied in steel silos of larger diameter which sweeper should be installed on the bottom inside. Plat foundation steel silo is featured by easy constructed and lower cost. Meanwhile, hopper foundation steel silo enjoys great popularity when customers are considering about grain unloading artesian. There are three hopper types like full steel hopper, semi-steel hopper, and cement hopper. Generally, there is no big difference in application of these three different hopper types. However, a special type of cement hopper constructed by backfilling, although requiring much easier construction process, is a big waste on raw material and silo capacity and requires a large civil engineering quantity.

As suggested above, customers should take comprehensive consideration before making choice to maximize the function price ratio and to perfect the investment results.

Steel silos in America

STEEL SILOS BRING GREAT CONVENIENCE TO AMEREICA

Current Economic Situation of America 

Since 2012, economy of the United States has maintained moderate growth continually. At the same time, industrial production and retail, household income, real estate prices are recovered, but the overall economic growth is lower than market expectation. GDP growth rate of the first, second and third quarter of 2012 is respectively 2.0%, 1.3% and 3.1%, while the unemployment rate is 7.8% in December, lower than 8% for four years. In addition, the economy of America is still facing many internal and external problems such as the uncompleted leveraging situation, insufficient investment and low consumer confidence, peaking debt, repeated attacks of European debt crisis and the slowed emerging economies.

The current overall economic has shown stabilization and recovery, but the recovery process is still twists and turns. In the third quarter of 2013, American GDP grew at the annual rate of 2.8%, which is slightly higher than the average growth rate since 2009.  Real GDP for the whole year is expected to reach $16.9 trillion. From January to September in 2013, the national price levels keep basically stable, the job market continues to improve, the unemployment rate dropped from 7.9% in January to 7.3% in October, and the estate market continues to rebound.

The U.S. department of labor predicts that from 2010 to 2020, GDP is expected to reach the annual growth of 3.0% averagely, which would be higher than the average annual GDP growth of 1.6% from 2000 to 2010.

Steel Silos Are Widely Used in America 

Americans mostly use galvanized corrugated sheet fabricated steel silos. From the early stage of the construction to the later maintenance, steel silo construction process has excellent technical support. Many Americans believe that prefabricated steel silo can be demolished, maintained conveniently and conducive to resource recycling.

The US molding technology of fabricated steel silo has a full set of technology, special equipment production line, and the strength, performance, safety of the steel silo are all reliable. Construction of the corrugated sheet fabricated steel silo were fabricated parts with convenient door, straight ladder, test tank and big fan, etc.

The use of spiral occlusal type is less than the usage of corrugated steel silo. Emerging glass melting steel (toughened glass) and epoxy coating technology make warehouse physical fit most of the special environments.

Silo storage is very popular in the United States. Silos are variable in size, small silos can be storage tanks, while large bins are likely to store thousands of tons of cargo. With mature technology, silos are widely used in the United States, not only used for storage, but also used for the processing and handling of freights stored in the bins, or used as a work of art viewing.  At the same time, maintenance of silos is also quite appropriate. There are special companies to maintain and repair storage silos, which brings much convenience to the repairment of silos.

Application of Steel Silos in the United States

Agriculture

The steel silo are mainly applied to store grains like barley, corn, soybeans, wheat, sorghum, rice, sunflower seeds, palm kernel and other bulk granular crops. At present, 95% of America's silos are steel silos, and the technology of fabricated grain steel silo is quite mature. Problems such as the humidity, temperature control, the machinery weight weighted have been solved. There are also silage silos, the slurry storage bins and nutrient storage bins, etc.

Biomass Aspects

Steel silos are also used for cooking biomass and storage of fuel and biomass.

Industry

The steel silos are used to store liquid, liquid chemicals, minerals, fluid processing, jewelry processing, etc.

Petroleum Chemical Industry 

Silos can be used in oil processing, the storage of crude oil and refined oil, etc.

Wastewater aspects

Steel silos are for the storage and circulation of industrial wastewater, municipal wastewater and the leach liquor.