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2024-09-032.4 Cylinder silo, coarse concentrate silo
The round and simple warehouse and the coarse concentrate warehouse all belong to the steel silo structure. The components of the steel silo structure include six aspects, which are the building on the silo, the top of the silo, the wall of the silo, the bottom of the silo, the supporting structure under the silo, and the basic structure. The diameter of the cylindrical silo is 9m, and the overall height is 23.67m. The overall height of the building on the silo is 8.17m, the height of the silo wall is 8.9m, and the overall height of the supporting structure under the silo is 6.6m. Usually, the supporting structure under the warehouse selected for engineering construction is mainly in the form of “column support”, which can effectively ensure the stability of the overall structure of the building and effectively improve the lateral stiffness. The calculation and decomposition of cylindrical silo mainly includes three parts: the building on the silo, the steel silo, and the supporting structure. The steel silo is usually carried out by independent programming, and the buildings and supporting structures on the silo are completed by PKPM space model. By using the correct calculation method, the steel silo’s self-weight, material weight, belt machine corridor load, wind load, earthquake performance is accurately calculated. After obtaining the specific calculated value, the specific calculated value can be input into the support structure model as the maximum limit of load, to ensure the accuracy of the construction model data. If there are certain construction conditions, the above three parts can be put into a model at the same time to complete the calculation and analysis. The heating diameter of the coarse concentrate bin is 7.5m, and the overall height is set to 20m, in which the height of the building on the bin is 5.17m, the height of the bin wall is lower than the height of the building on the bin, its height is 5m, and the overall height of the supporting structure under the bin is higher than the height of the building on the bin, its value is 9.9m. With a 4.45m elevation, there is a platform for discharging belt machine. The calculation content and method of the coarse concentrate bin is the same as that of the cylinder concise bin.
2.5 Adhesive tape machine
The main application of the corridor belt machine is the external suspension of the corridor, and the main form of the cross section of the corridor body is covered without strength. The structure of the gallery body is mainly reflected in the space truss, the upper chord and the lower chord are respectively adopted channel steel and Angle steel, the abdominal rod is usually applied Angle steel, and the span of the gallery body is usually about 20 meters. In the calculation of the gallery body is mainly divided into two parts, respectively vertical truss and horizontal truss, in the process of specific analysis, the need to use the PKPM steel structure two-dimensional design of the “truss” module, and then through the role of the common chord continuous superposition effect, according to the limit of carrying capacity and normal use of the limit, in two states for checking. The corridor supports are mainly divided into two types, namely, monolithic support and fixed support. The monolithic support is a double column and the fixed support is a four column. When its height is less than 8 meters, it can be carried out by using the constant section support, and when its height is more than 8 meters, it needs to apply the variable section support. The top width of the support is taken from the width of the body truss, and the bottom width is determined according to the calculation. The support is calculated by using the “support” module in the two-dimensional design of PKPM steel structures. In the process of engineering design, the calculation and analysis of the horizontal truss of the corridor may be ignored under normal circumstances. Based on this, we should pay more attention to this aspect. If under certain conditions, it is recommended to use the spatial model of corridor and support in the specific analysis process. It is usually carried out in a horizontal way, using a concrete structure, but in the KARARA project, the concentration tank is embodied in an overhead form, using a steel structure. The concentration pool is mainly divided into three parts, which are the foundation part, the supporting structure part and the tank part. The tank and the supporting structure are used as the equipment steel structure. Corresponding equipment is provided by the manufacturers. For the same structure, detailed calculation and analysis can be carried out by using general finite element software.
3、Comparison of steel structure and concrete structure
The steel structure and concrete structure can be found in the process of comparison. After all, the steel structure has more disadvantages, and there are certain disadvantages. The advantages of steel structures are fully expressed in the above content, and its disadvantages are that the weather resistance and corrosiveness of the steel structure are low. In the construction of metallurgical mining projects, most of the fire risk of construction buildings has various categories. Its classification can be divided into two categories, which are Ding and Patriotic Class. do not need to apply fire protection and heat insulation measures. Because the corrosion resistance of the steel structure is not high, it is necessary to paint it to avoid the phenomenon of rust. Therefore, in this case, the related cost of maintenance will be greatly increased. In engineering, in the process of choosing steel structure and concrete structure, it is necessary to consider two aspects of factors, respectively economic and technical. The application of steel structure in metallurgical mine engineering is mainly in the case of belt machine corridor, derrick and well tower. Compared with concrete structure, steel structure has higher technical advantages. Under the same technical conditions, the technical advantages of steel structure and concrete structure are very significant in various fields. Under normal circumstances, the cost of steel structure is relatively higher than that of concrete structure. However, due to the relatively strong deadweight of the steel structure, it can effectively reduce the basic cost of the project. The short construction period of steel structure can ensure that the capital turnover is accelerated, and the project can be invested as early as possible in the project operation, so as to effectively obtain economic benefits. In addition, steel structure can be better recycled, which is also a higher income. Based on this, it can be found that the economy of steel structure is not at a disadvantage compared with that of concrete structure.
4、The gap between the steel structure industry and the future trend
With the development of science and technology, the steel structure of our country has developed rapidly since reform and opening. The steel varieties and specifications are more and more complete, the quality of steel has been greatly improved, the form of steel structure is more and more novel, and the design and construction technology of steel structure is more and more developed. The steel structure industry in our country with the amount of steel currently occupies about 4% of the total steel products in our country, compared with the developed countries, there is a big gap. Domestic steel can realize the relevant requirements and standards of steel structure processing, but compared with foreign countries, there is still a certain gap in specific varieties, specifications, performance and other aspects, such as: high strength thick plate, high strength and large specification ultra-thick H-beam steel and so on. At present, in terms of buildings and Bridges, Japan has widely promoted the strength of Q690 grade steel, and the development of this mechanical steel is very mature. Based on this, in the future development process, the new requirements for the steel products in our country are put forward. For steel products, we need to be the first to meet the needs of the development of foreign steel structure in quality, specification and variety, occupy an important position in the relevant industry, and the application and development of high-performance steel products in relevant fields is the world’s leader; To ensure that the parts of steel structure products and related supporting technology can achieve the international advanced technology level, will focus on this technology. In the industry position, the various advantages of steel structure with a relatively prominent proportion of output value can gradually become a new development in the potential market, independent innovation technology, so as to give full play to the advantages and functions of steel structure, so that its quality has been significantly improved and widely publicized in various fields of application. It can play a positive role in promoting the related supporting products and components, strengthen steel structure industry, make it a strategic emerging industry in our country, and meet the development goal of steel structure. The innovation of building steel structure is the inevitable result of the progress of human society and science and technology.
