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Large steel storage silo is at 1986 patents to solve the off-season cement storage and reduce investment, design and construction. The design principle of this storage silo in 2002 after nearly two decades of use, wrote "with a large steel base to solve the off-season production of cement storage problems," the summary of the paper, in 2003, "cement" a publication to adapt nationwide practical requirements. Depending on the climate the country, different regions and different geology, representative of the construction of two Shiyu Zuo large libraries to adapt national laws to form a design parameter, while all construction units are to achieve the continuity of the off-season production, for enterprises to increase benefit create remarkable results.
First, the role of the characteristics of large steel storage silo
Large steel structure principle is completely different from the traditional concept of the storage silo silo, which is a new concept of load reservoir. This principle reservoir, the domestic is no precedent, there is no relevant information abroad. This large-scale bulk cement storage storage silo is a great invention.
Large steel storage silo has other storage methods can not be compared to the salient features. It not only solves the problem of safe storage of cement production to meet the selling season to adapt to conditions in short supply, but also a focus on the use of bulk cement by the interim repository. For Sinotrans cement stations and ports, but also shorten the travel time for loading and unloading in a sufficient amount of storage in order to improve the speed of travel of the turnover. Such large libraries such as for national grain reserves, not only can save a lot of investment, but also in high-security storage in sealed, by extending the storage time, reduced footprint, reduce storage losses in safe keeping in the creation of a national increase national conditions.
Large steel storage silo is an alternative to the traditional silo new facility, its salient features are:
1 large reserves
Large reserves of steel storage silo. Until now no bigger than this reserve reservoir. According to the current design and construction capability, can build a reservoir more than 100,000 tons. Such large reserves in the country are without precedent outside.
2, low investment
Traditional storage silo warehouse construction investment, basic to calculate the cost per seat, this calculation does not reflect building a database of economic indicators. Large economic indicators should be based on tons of steel storage silo storage investment accounting standards. The economic indicators, in addition to a single bank reserves calculated in building a database investments. Now as a place to build a one thousand tons of reinforced concrete silo, every seat invested 1 million yuan, tons of storage investment of 1,000 yuan, while the construction of twenty thousand tons of large libraries, the investment of 200 million tons of storage investment for 100 yuan. Compared ton reinforced concrete silo storage investment can be reduced 90%. In other words, with the cost of two thousand tons of concrete round storage silo, built a large steel base, reserves increase 80%
3, small footprint
Saving non-renewable land resources Springs, is one of the important national policy in China. Construction of large steel libraries are less land than any other storage methods. To build 30,000 tons of large steel columns libraries, each storage silo covers an area of ​​1.5 acres. Reserves equivalent to the traditional one thousand tons bin 30. As an area of ​​100m2, equivalent to an area of ​​4.5 acres, so you can save the land of 3 acres per seat. If you build finished products, packaging of cement per m2 store 1.65 tons, 30,000 tons have to land 1818m2, equivalent to 27 acres of land, plus the storage silo, such as the ring road around the need plus 50%, the actual land 40 acres, with the construction of large steel base phase than 38 acres of land and more and more. The role of conservation land on the cement industry is concerned, the land will save a lot of non-renewable resources Springs, companies are reducing investment in land occupied in saving the country.
4, storage security
Bulk safe storage of large steel base, has been demonstrated in a 2003 magazine article first a cement statements. This effect is any storage method can not be achieved. Under normal circumstances, only within the sealing cement the barrel little change memory 3 months, and any conventional storage methods, the intensity decreased after three months storage.
Outdoor light storage cement packaging store only to have someone on duty to ensure safety, but also a great investment to cover. Stored for two months, only the number of losses up to more than 15%. If the leak inch drain snow even worse, the intensity can be reduced up to 30%. If damage plus bags, packaging, transportation and other expenses short, there is simply not hold costs. The use of large steel base, the quality indicators for two years and basically had no big change.
5, low storage costs
Any cement technology storage conditions are limited. Normal process design storage period of seven days, the remaining excess cement stored in the finished products through packaging, the packaging during the short run costs of storage and factory loading and packaging losses, will be a substantial increase in production costs. The purpose of large-scale steel homogenization storage silo functions can be directly packing, loading, transportation and bags damaged only a short time, alone can reduce the considerable costs for businesses. As for the state-volume serial number, can be tracked through the packaging to achieve the purpose of sampling inspection. Originally built large reservoirs 30 m in diameter, date warehousing around 400 tons of cement, three years proved cement factory pass rate of 100%. Since two decades, still continue to use this method to make cement become outstanding products in the region. Thus, the use of large steel base, in the short run twice to avoid direct Sinotrans, which greatly reduces the cost of production.
Second, the technical points of large steel storage silo
Twenty years ago, a large steel storage silo since the storage silo has been built using the body, the foundation is still basically intact. In recent years, improved by more than 20 blocks of large libraries of sound, the four most have a more reliable measure adaptation requirements. These regions adapt to different requirements of the technology, has declared January 12, 2004 patent April 13, 2005 authorized for self-sealing stepless variable transmitter conveying emboldened storage silo, but also on May 30, 2005 declared patents, and on April 21, 2006 authorization. Gasification discharge device is also in January 2006 to declare a patent. These patents so that large steel base, more perfect its auxiliary functions.
1, a large steel base storage silo
     Large steel base storage silo, expanded key is to adapt to the load force. In a sense, there is no such basis would not have huge reserves of large libraries. Is based on the traditional silo cylinder overhead point load force, while large storage silo is the principle of surface charge from the floating force.
2, a large steel storage silo storage body
Large steel storage silo is a weight-bearing stress on a round body with the formation of a multi-stage thickness. Is the vertical pressure-based deposition pressure, due to the small storage silo body tension, while saving construction investment.
3, the top of a large steel storage silo storage silo
Large steel top storage silo storage silo is missing a ball hemisphere state, which through different intensity profiles set to form a structural stress-free beams, this effect of stress may form a large area of ​​coverage, but also the large-diameter steel base seal the key technologies.
4, gasification large plate nesting storage silo
Large cross-sectional area of the reservoir bottom discharge, unlike the small-diameter circle fixed positions. Silicon salt storage in the proportion of cement 2t / m2 or more. Large density gradient is impossible to produce a cohesive flow. To this end, the storage silo inventory cement nesting, high-pressure air to be infiltrated by the deposition of cement, to restore the flow state, resulting in a cohesive efflux upper cement gravity.
5, nesting outside the transmission of the transmission device
This device is unlike any air force transmitting device, its volume length of only 1m, height 0.4m or less, it is not only adapt to the storage silo at the end to send the cement, but also in the mill tail or separator directly through pneumatic conveying, the cement delivery into the bank. Such delivery devices, have to adapt to different requirements of variable function, it can put cement in different positions within the circle, sent by electronic control with a large storage silo, which can give full play to the function of the original silo.