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HOME >> NEWS >> Design Principle of Grain Storage Silo

Over years BAIRONG steel silo grain silo tireless research and development, improvement, and finally successfully developed new metal grain storage steel library. Steel silo has its low investment, short construction period, small footprint, and many other advantages, has become the preferred type of grain storage warehouse. The following details to tell you about: steel library

First, according to the site ground conditions into account the general layout
Steel silo in total positions in a plane placed, depending on the route out of food. Grain Terminal consider convenient entry and exit, there is a train track transport must dovetail with the train, automobile exercise routes, as well as food processing plants and port logistics to food, is to choose a long belt conveyor motor transport or other factors.
In food processing plants supporting the silo part, into the grain silo location depends on the route, using the car when unloading grain, automobiles exercise route, to ensure traffic does not appear blocked, wide roads, try to design a ring bus route. Payroll must be connected with the main aspects of the workshop is good, taking into account the process flexibility, using as little equipment to meet as many features.
In total flat arrangement, there is a very important principle is designed to meet fire code requirements. Steel silos by fire rating for the two designs, but also in the country when the specification must be sufficient warehouse fire exits between each group and warehouse groups linked. In addition, the layers in the tower should also be designed to fire hydrants.

Second, determine the use of steel silo's specifications, models and related facilities
Grain silo applied to almost all of the food industry, there are two main aspects of food grain and oil processing plants and port terminals. How to select the right steel silo specifications it? First, based on the amount of storage silos and material varieties. Generally have the following situations:
1, the general daily processing 2000 tons or more large oil processing plant, usually to build 5-80000 tons of barrel warehouse stock, in addition to a single species of soybean, consider building a single warehouse capacity is about 10,000 tons to 1.5 million tons of large welded steel silo floor, relatively economic, see Jiuzhou silo website. In addition, the current daily processing capacity of corn deep processing enterprises and other large domestic starch great, it is recommended to choose such a large floor welded steel silo.
2, medium-sized and medium-sized oil processing plant corn deep processing enterprises, you can choose a single warehouse capacity of about 5000-7500 tons appropriate.
3, flour processing enterprises, select the silo is not the same, many varieties of wheat, and we need more than the number of silos, so a single warehouse capacity to about 1000-2000 tons appropriate, daily treatment decisions based on the amount of wheat storage capacity.
4, malt, beer processing industry, a single warehouse capacity is about 1000-1500 tons.
5, feed processing industry, a single warehouse capacity is about 1000-3000 tons appropriate.
6, rice processing industry, most of the current silo capacity building is not large, single warehouse capacity of 1,000 tons.

7, small car payment warehouse for bulk grain car payment or packaged functions, generally choose warehouse small diameter, single warehouse capacity of not more than 500 tons bucket full cone form. Loaded grain cars can be mounted directly in the grain bin.
8, food industry, ports, ports as transit of food, general construction capacity, short transit period. China currently coastal ports steel silo storage capacity is about 2 million tons, generally single warehouse capacity between 5000-15000 tons, with a grain oriented flat clearing machine.
In short, choose the right diameter and height of the silo and the way in which the material depends on many factors. Must ultimately be matched with function, or can not maximize the economic benefits.

Third, ancillary equipment selection and reasonable, safe and orderly process
In the process of steel silos, mainly related to the equipment: transportation equipment, preliminary cleaning equipment, measuring equipment, dust removal equipment, drying equipment and clearance machines. In selecting equipment should note the following:
① selection of equipment and features to match: for example, in the measurement needs of warehousing functions, must be installed before the raw material Jincang measurement scales. Also need to be measured in the warehouse function, raw material warehouse after installation measurement scales. General food delivery systems in ports, you need to install metering equipment early SD, of course, in the process of the design process through the tee can not clean up after or metering equipment. In conventional food processing enterprises, the device can simply install the early Qing Dynasty. Early Qing devices currently include: early single-cylinder clean sieve (small amount of processing in the 100t / h s), early double cylinder (good cleaning effect, in a 250 t / h of) clear screen, mesh bag early clear screen (processing capacity, in 500t / h of clean up is not good). As for the choice of the early Qing equipment, or depending on the functional requirements. Feed processing industry in the early Qing corn refers to corn in the corn on the cob, hemp and other large miscellaneous can be removed. Starch, alcohol and other processing industries, the early Qing demanding, not only need to remove more than the hybrid, the other, like corn bran and other light miscellaneous equally removed. In the beer industry, can not be called the beginning of the Qing section, but should clean up the section, be equipped with self-gravity to balance the shaker and stone to complete the process requirements.
 There are equipment selection is critical, such as the level of transmission can be used en masse conveyor belt conveyor can also be used to select which device is better, but also for analysis and comparison. Advantages buried scraper conveyor for unloading can be multi-point, good sealing performance, belt conveyor can not be reached, so the top choice in the silo buried scraper conveyor is more appropriate. Further, the advantages of the conveyor belt to reduce the broken material can be transported over long distances, the power consumption of the province. So for material crushing demanding industries such as wet grinding starch industry, can only provide belt conveyors, and can not be used en masse conveyor. There are many large ports such as the current design, minimize the use of bucket elevator conveyor, while the use of long-distance belt conveyor inclined to reduce material crushing, although increased investment, or to ensure that the quality of material handling unchanged.
    Therefore, the selection of equipment in the design process is crucial to select inappropriate equipment, not only can not meet the technical design requirements, but there will be irreparable damage.
② supporting equipment production and function: choose depends on how much of the transport silo capacity and the ability to access food, a warehouse and the subsequent ability to match the main workshop, select the device will not only result in much wasted investment in equipment and operating costs also high, but the choice of equipment too often traffic jam phenomenon. In the current harbor pier scattered grain, the general seagoing vessel's hull between 50,000 tons to 6 tons, usually designed to 1000t / h production capacity to meet the loading and unloading boats, there would be stranded phenomenon. In grain and oil processing plants, depending on the car the ability to unload grain. General bagged grain unloading grain inefficient production of small, but the bulk grain unloading grain yield greater efficiency.
③ considered adequate equipment maintenance space: equipment maintenance space for the process design is an important consideration, because the device requires regular care and maintenance, the operator will need to have enough space. Such as bearing replacement, cleaning sieve tube replacement, and maintenance of motor reducer.
④ electrical control room Location: electrical control room is best to set up a separate room, you can also set up at work under the tower or silo, but it must be in a closed environment, can not have dust to enter, otherwise it will affect the electrical components life, serious security incidents occur.

Fourth, ventilation dust and dust proof control
     Ventilation and dust in the entire process is auxiliary equipment, but it is also approved to improve important aspects of the design process. Usually require a higher production units, production workshop no dust, dust control is good. Environmental protection departments at all levels now are concerned about the various units of the production environment, the project must be started before the EIA report. So, ventilation dust will gradually taken by the people.
     In the steel silos process design process, follow the "confined mainly ventilation supplemented by" principle. All can be closed as a closed pipeline, while the gap between local produce used in material handling dust level, to require the use of a secondary dust high places.
     Now people have a lot of dust explosion understand, but accidents still occasionally happen. Mainly from the following considerations, to guard against. According to steel silo design specifications, all motors and electrical components must dust explosion-proof. Rational design of ventilation and dust removal system, dust collection, emission standards compliance. Do not use an open flame food storage places, measures must be taken before the flare. Aging electrical wiring, timely maintenance replacement. In addition, the most important is the need to strengthen the management, timely and equipment for dust ground surface was cleaned, ground sprinklers and other measures.