Grain Storage Silos
Cement Storage Silos
Steel Silo Making Equipments

HOME >> NEWS >>Development and Trends of Steel Storage Silo

I. Overview
     Steel silo produced in the early 20th century, and its development has gone through four stages: riveted steel silo (now eliminated), welding warehouse, assembly positions, spiral undercut warehouse (and fame Pu warehouse). Fabricated steel silo appeared in the mid-1950s, the 1970s began producing Lipp positions. Our silo's development started late in 1982, the introduction of Heilongjiang Province Honghe Farm fabricated of galvanized corrugated sheet steel silo from the United States, is the emergence of the first modern steel silo base. In the same year, Heilongjiang Qing'an steel plant by mapping Honghe American steel silo farm produce domestic grain silo Block 1. 1990s, China introduced the Philips technology and SM dedicated volume warehouse equipment, began producing Lipp positions, due to the limited number of imported equipment, higher prices, its development has been limited. 95 years before, shepherd steel silo's digestion and absorption of foreign advanced technology and experience, has successfully developed a JCJZ-made spiral warehouse unit, on behalf of my Philips warehouse production and installation of advanced technology. By the end of 2001, the successful merger of Shandong Hao Kai Corporation (Hao Kai is 1995 Shandong Hao Kai Oils Group and the United States Steel Products Company, FHI International, a joint venture company, the main production and assembly positions), the introduction of complete sets of prefabricated steel silo equipment production lines, greatly promoted the development of China's steel silo cause.
Second, the composition of steel silo, configuration and characteristics
General by the warehouse roof silo, warehouse body, cone fighting several components, with improving the supporting systems, including access to warehouse systems, cleaning systems, drying systems, level system, temperature measurement system, ventilation fumigation system, electric control system , metering system, a set of automated packaging operation systems, Jincang from materials until the warehouse, each link has advanced and reliable working system that allows storage utilization and management of materials turnover tends to be more scientific, reasonable, and effective low reduced user's operating costs.
Steel silo with a light weight, low requirement on the basis of low cost (total investment cost savings of 20% -50% higher than the same capacity of reinforced concrete silos), short construction period (five days to complete a 1000T steel storage; complete a 6000T steel warehouse just 15 days), airtight, durable, using a wide range of features such as easy management; better their supporting systems, high mechanization and automation, can better meet the security of stored grain and grain storage process operating performance, adaptation requirements granary development. Meanwhile, the warehouse wall is thin, the temperature difference between the external environment impact, but a reasonable process design, a better matching system, safe and effective in grain storage management measures to ensure the safety of grain storage silo. Commissioned by the State Planning Commission, the National Food Authority Zhengzhou Research Institute in 1998 nationwide survey of grain storage silo security situation. The survey found that part of the steel silo users due to take proper ventilation and clean-up measures, and sound management, the longest of wheat stored for more than 3a nor bad food phenomenon; some users due to lack of supporting technology and management, grain storage time is not serious pests and bad food incidents over six months to happen. Practice has proved that excellent characteristics silo is increasingly being recognized by the majority of users.
In addition, the fabricated steel silo also has the following features:
1, the overall stiffness: high quality galvanized steel coil through the plane rolling, stamping, molding materials, high tensile strength (δb = 350MPa ~ 450MPa), load safety factor; hot galvanized steel surface content, because all use high strength bolt connection, no welded connections can be avoided due to restrictions Lipp process of leaving the warehouse wall seams, galvanized surface layer is easily damaged, so strong anti-corrosion ability, maximum wall thickness while Lipp warehouse currently used to δ4.0mm and galvanized sheet plastic requires good, the intensity is not high, otherwise there will be biting into five edge cracking phenomenon, fabricated steel silo less demanding on the plastic sheet, you can use high-strength sheet (δb> 410MPa ). Using a plurality of positions within the C-or Z-rib and the top of the umbrella just structural beams are connected by high-strength bolts together into a steel skeleton, the overall strength, shock resistance, good stability, long life; warehouse wall after strengthen the process, the system can open doors and all kinds of craft holes.
2, fabricated steel silo site installation simple operation, easy maintenance: a standard high-strength steel and efficient anti-aging seal assembly, there are sets of automatic production line can be a batch, standardization, mass production, steel utilization, cost silo Billy Pu warehouse low 15%, its high degree of standardization of parts can be interchanged; modular assembly on-site installation, simple operation, high working less, production quality, fast efficiency; bolt assembly adopts torque electric wrench, assembly precision and easy to control and check the quality of construction from seasonal effects.
3, fabricated steel silo removable relocation, demolition parts easy to replace, scalable (eg: the original position can be raised or increased diameter, etc.), warehousing, maintenance or storage of materials sampling and convenient, so fabricated steel silo increasingly being accepted and used the majority of users.
Welding positions, domestic small number, it is relatively better air tightness, due to the large wall thickness, strength, height can be higher. However, compared with the first two, welding positions exist long construction period, construction complexity, maintenance problems and other defects, users rarely choose.
Third, the steel silo application status
Steel silo to store granular, powder, liquid materials, widely used in agriculture, grain and oil, metallurgy, building materials, petroleum, chemical, light industry, brewing, pharmaceutical, food, coal, environmental protection, sewage treatment and other industries, but also for the garage, residential. Storing granular materials such as: wheat, rice, corn, barley, sorghum, edible oil seeds, soybeans, cocoa,, gravel, ores, etc.; store powdered materials such as: flour, starch, coffee, feed products, cement, gypsum, bauxite, caustic soda, etc.; storing liquid materials, such as: oil, beer, wine, water and sewage. Therefore, the wider application areas (eg: Jinan ten environmental silo project is environmentally friendly sewage treatment field positions). And according to the user's needs, the nature and process requirements to store materials, material can be arbitrarily selected positions in a variety of materials, such as: thickness of 1.5-4mm ordinary black steel, galvanized steel, stainless steel plate, aluminum plate, composite board and other materials.
Currently, the construction and the introduction of the silo as a temporary warehouse most of the production, transit warehouse, raw material warehouse, finished products warehouse and other use, as much long-term reserves of grain warehouses. From the professional point of view, can be used as storage silo warehouse, drying ovens, ventilation warehouse, warehouse fumigation and environmental sewage, such as warehouses.
According to the survey, 85 years, the domestic introduction of Honghe Group 1 American farm silo, after the operation, extremely easy to use, good value for money. China's current ratio of Lipp warehouse and assembly positions close to. Philips warehouse diameter range is generally 2m-25m, single-compartment capacity can reach more than 6000T. Diameter mounting positions up to 32m or more, warehouse capacity is developed by the 1000T-3000T to 5000T-10000T more. Currently, the domestic single-chamber diameter and the largest capacity Lipp is the Yellow grain and oil storage silo works, the scale of 6-φ23m × H19m, diameter 23m, single warehouse capacity of 6000T; warehouse capacity Lipp's largest steel silo project for 97 on completion of the Beijing Yanjing Brewery 36,000 T steel silo project; highest Lipp warehouse is put into use in early 2000 Omer Bada Baoding malt silo height of 38.5m. The company produces steel silo by Yangzhou shepherd fabrication and installation, so far, better results. By Shandong Hao Kai fabrication and installation company in Tianjin Yi Board's State Grain Reserve (8 × 5000T / a) is currently the largest capacity single-chamber assembly positions.
     According to statistics, the current domestic production of steel silo about 20 companies, more famous Yangzhou, animal husbandry, like steel silo engineering company, Heilongjiang Qing'an steel mills, Anyang Lipp silo engineering company, Dunwell silo companies. As science and technology innovation and development of market economy, many using backward technology and outdated equipment steel silo has been eliminated or will be eliminated, even in major grain-producing and exporting countries of the United States, steel silo from the original manufacturer 20 reduced to six. However, animal husbandry, like steel silo engineering company Yangzhou innovative technology, through the introduction, absorption, digestion of foreign advanced technology and production practices, and gradually formed a set of design, manufacture, construction, installation, commissioning and maintenance of operational procedures, the accumulation a wealth of experience. It has first-class operational support systems and the entire automation system that allows storage of materials, turnover, utilization and management tends to be more scientific, rationalization, has become a silo industry leading enterprises. Shepherd silo has become a famous brand in many fields has been widely used.
Fourth, the development trend of steel silo
     Production and application of steel silo has experienced about 20 years of practice, has made a wealth of design, construction, use and management experience. With the warehouse mechanization, automation, and modernization progress Jiancang technology and management technology continues to improve the use of, and gradually solve the large turnover and difficulties stored grain and other raw materials. Steel silo as industrial products, to provide users with excellent turnkey, with a sound system and good after-sales service support system, has been recognized by the majority of users, the choice of steel silo businesses, more and more manufacturers have gradually become the industry the main compartment type. As market competition intensifies and GATT accession, foreign companies such as steel silo: American 齐富公 Division, GSI Group, also have long been involved in the competition, which greatly promoted the development of China silo cause. The production and use of silo management is also gradually to good technology, high-level, high standards of corporate focus, with science and technology and economic development, can be used as long-term storage silo granary and has been widely used in many fields. Therefore, the steel silo with a wide range of markets and broad application prospects.