Although there are many types of coal mining methods for coal mines, it can basically be divided into two major systems of wall and column.Let me introduce it in detail below!
Introduction to the mining method
The concept of mining method is different from the concept of recovery methods.In the mining method, the specific process of completing the three main operations of ore, ore transportation and ground pressure management, as well as their relationship between time and space with each other, is called a recovery method.Different mining technical conditions are different, and the recovery methods are different.The mining technology conditions in the mining block play a decisive role in the recovery process, so the recovery method is essentially the core content of the mining method, which reflects the basic characteristics of the mining method.The mining method is usually named after it, and it is determined to determine the standard of mining, cutting methods and the specific layout of the alleyway.
In the mining method, sometimes the mine blocks are often divided into mines and ore columns for two steps, mining first, and then mining columns.The type of mining method is to distinguish the mineral mining method of the entire mineral block in different mines and pillars.When the conditions are profitable, the mine can also be divided into mining and mining columns, but the recovery work is moving along the length, or continuously advanced along the tilt (inverse tilt), which has become a comprehensive recovery mining method.
What are the mining methods
Aramor coal mining method
Although there are many types of coal mining methods for coal mines, it can basically be divided into two major systems of wall and column.(1) Curdine mining method.Depending on the thickness of the coal seam, for thin and medium -thick coal seams, a single thick -long coal mining method is generally adopted; for thick coal seams, it is generally divided into several medium -thick layers.EssenceIn accordance with the relationship between the direction of the recovery working surface and the direction of the coal seam, the wall -type coal mining method can be divided into two types: moving long -wall coal mining method and tilt long wall coal mining method.
Long Wall Coal Matching Method
The recovery process used by the slow -to -tilt and tilting coal seam adopts a single -long wall coal mining method mainly includes three types: artillery mining, ordinary mechanized coal mining (high -end general mining), and comprehensive mechanized coal mining.When choosing a recovery process method, the mine geological conditions, equipment supply status, technical conditions, technical management levels, and coal mining systems should be combined.Blasting coal drop process.The workplaces of the workplace of the cannon include: coal breaking, coal loading, coal transport, push conveyor, working face support and top board control.Ordinary mechanized coal mining uses a shallow drum coal mining machine to drop coal and coal, and use curved scraper conveyor to transport coal to use a cantilever bracket bracket branches composed of a single hydraulic pillar (or rubbing metal pillar) and hinged pillarCovering method.Comprehensive mechanization coal mining refers to the production process of coal mining, including coal drop, coal loading, coal transportation, support, top board control, and back -to -piercing roadway transportation.
Comprehensive mechanized putting top coal mining technology
my country ’s top coal mining mainly refers to the exploitation of long -wall comprehensive mechanization of the comprehensive mechanization (hereinafter referred to as comprehensive release).The essence of comprehensive release is to arrange a long -wall working face along the bottom of the coal seam, use a comprehensive mechanization method to recover, and at the same time make full use of the mine pressure (under special circumstances supplemented by the manual loosening method), the top coal above the working surface is broken, and the top coal above the working surface is broken, and the top coal above the working surface is broken, and the top coal above the working surface is broken, and the top coal above the working surface is broken, and the top coal above the working surface is broken, and the top coal above the working surface is broken, and the top coal above the working surface is broken, and the top coal above the working surface is broken.A well -worker mining method in the back of the bracket (or above) to put and get out of the working surface.
Coal mining method in the column system
The coal mining method of the column system is divided into three types: room -style, room pillar and lane column.The essence of the room -type and room column -type coal mining method is to excavate some coal houses in the coal seam. The coal house and the coal house are connected by the liaison alley.The recovery is carried out in the coal house, and the coal pillar can be left without collecting; or after the coal house is collected, the coal pillar is returned.The former is called a room -style coal mining method, and the latter is called the pillar -type coal mining method.
Mining method classification basis
At present, there are many methods for classification of mining methods, each with its own use.Generally, the ground pressure management method in the use area is based on the recovery process.The ground pressure management method of the collection area is essentially based on the physical mechanical properties of ore and surrounding rocks, and the physical properties of ore and surrounding rocks often often cause the mining method to be separated by the applicable conditions, structural parameters, cutting layouts, and recovery methods.And the main factor in the main technical and economic indicators.Therefore, according to this, it can accurately reflect the main features of various mining methods, but also clearly divide the fundamental boundaries between various mining methods. It is also very convenient for comparing, selection, evaluation and improvement of mining methods.

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