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The basic situation, the layout of development and mining, as well as several major systems, labor organization and management, disaster avoidance routes, and safety technical measures.
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The content of the preparation of the operation procedures for the coal mining work generally includes: general ruler mold front, coal mining method, roof control, production system, labor code circular organization and main technical and economic indicators, coal quality management, safety technical measures, disaster emergency measures and disaster avoidance routes.
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Chapter 1 Overview.
Section 1 The position of the working face and the relationship between the top and bottom of the well.
Section 2 Coal Seams.
Section 3 Coal seam roof and bottom plate.
Section 4 Geological Structure.
Section 5 Hydrogeology.
Section 6 Factors affecting mining.
Section 7 Reserves and service life.
Chapter II Coal Mining Methods.
Section 1 Roadway layout.
Section 2 Coal Mining Technology.
Section 3 Equipment Configuration.
Chapter 3 Roof Management.
Section 1 Management of the roof of the working face.
Section 2 Management of transportation lanes, return air lanes and end roofs.
Section 3 Observation of Mine Pressure.
Chapter 4 Production System.
Section 1 Transportation.
Section 2 "One Access and Three Defenses" and Security Monitoring.
Section 3 Drainage.
Section 4 Power Supply (see Power Supply System Diagram.)
Chapter 5 Main Economic and Technical Indicators.
Chapter VI: Safety Technical Measures.
Section 1: Ordinary Provisions.
Section 2 Roof control.
Section 3: Prevention and Control of Water.
Section 4 "One Access and Three Preventions" and Security Monitoring.
Section 5 Transportation.
Section 6 Electromechanical.
Section 7 Miscellaneous.
Chapter VII Disaster Prevention and Disaster Avoidance Routes.
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What does it mean that the width of the fully mechanized mining face is not greater than and not less than.
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The formal cycle operation organization of the coal mining face includes the circulation mode, the operation form, the process arrangement, and the labor organization.
1. Circulation mode: The circulation mode of the coal mining face generally includes the stage of cutting, excavation, support, withdrawal, and entering the next working face. These cyclical phases follow a certain sequence and timing to achieve continuous exploitation of coal resources.
2. Operation form: There are two common forms of operation of coal mining face, one is fully mechanized mining face, that is, the comprehensive shearer is used for continuous mining. The other is the excavation face, which uses a TBM to excavate layer by layer.
3. Arrangement of work and dry disturbance: On the coal mining face, it is usually necessary to carry out the operation according to a certain process arrangement. Typical processes include:
Enter the working face for preliminary preparation, carry out coal roadway excavation, support reinforcement after excavating to the predetermined position, and evacuate after completing the coal mining work.
4. Labor organization: On the coal mining face, it is necessary to reasonably organize labor resources to ensure the safety of personnel and the efficient operation of the operation. This includes the rational allocation of staff to various positions, the training and management of staff, and the development of reasonable work arrangements and shift schedules.
The main requirements for the dynamic compliance of the coal mining face are coal mining progress, safe production, coal quality, high efficiency and energy saving
1. The coal mining progress should meet the standard: according to the production plan of the mine and the requirements of the coal mining process, the coal mining face needs to complete the scheduled coal mining tasks on time to ensure that the output and coal mining progress meet the specified requirements.
2. Safety production must meet the standard: In the process of coal mining, it is necessary to comply with relevant laws, regulations and rules and regulations on safety production, implement safety operation procedures, ensure the personal safety of coal mining personnel and the normal operation of equipment, and prevent accidents and disasters.
3. Coal quality must meet the standards: the coal mining face should ensure that the quality of the mined coal meets the requirements, including the integrity of the coal seam, the content of components, volatility, sulfur, ash and other indicators, so as to meet the needs of the coal market and product quality standards.
4. High efficiency and energy saving should be up to standard: the coal mining face should realize the efficient mining and utilization of coal through reasonable technological processes and technical means, reduce energy consumption, reduce waste emissions, and improve resource utilization efficiency as much as possible.
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Hello: Article 117 of the Coal Mine Safety Regulations stipulates that the goaf must be closed in time.
The connecting roadway leading to the goaf must be closed one by one with the advancement of the coal mining face. Within 45 days after the mining area is opened, firewalls must be set up in all roadways connected to the mined area, and all mining areas must be closed.
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What and what should be done before the mining operation, and the safety can be confirmed before entering the mining operation.
The process of extracting ore from a block of ore that has been mined and cut. The mining process includes three operations: ore falling, ore extraction and ground pressure management. The mining process directly affects the technical and economic indicators of the mining method.
Falling mines. The operation of extracting ore from the ore body in a qualified lump. Out of the mine.
The operation of transporting mined ore from the falling face to the stage (a mining section with a full length of the mine at a certain height). The ore production efficiency directly affects the production capacity of the ore block, and the unqualified large blocks in the ore that are better than the specified standard need to be crushed twice before or during the ore extraction. Commonly used mining equipment includes electric rakes, conveyors, loaders, scrapers and vibrating ore drawers.
Verify the management of ground pressure. This includes the maintenance and disposal of goafs. The ore falling, ore extraction and ground pressure management in the mining process are closely related, and a reasonable mining process should be selected according to the optimal technical and economic effect. Changed to earlier.
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Answer] :d has a bottom pillar segmented caving method, also known as the segmented Chunsen caving method with a bottom structure, its main feature is that the mining is carried out one by one according to the sections, and the bottom structure for ore extraction is provided at the lower part of each section. The sectional mining of Pabi mu is carried out in sequence from top to bottom step by section.
Should; The mining method can be divided into horizontal deep hole ore falling with bottom pillar segmented caving method and vertical deep hole falling ore with bottom pillar segmented caving method.
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Summary. Hello! We're glad to answer your questions! ~<
It is an area where human beings exploit coal resources in coal-rich mining areas, which are generally divided into underground coal mines and open-pit coal mines. When the coal seam is far away from the surface, it is generally chosen to dig a roadway underground to mine coal, which is an underground coal mine. When the coal seam is very close to the surface, it is generally selected to directly strip the surface soil layer to excavate the coal, which is an open-pit coal mine.
The vast majority of coal mines in China belong to underground coal mines. The scope of the coal mine includes a large area above and below ground, as well as related facilities.
What must be prepared in the coal mining face of coal mining.
Hello! We're glad to answer your questions! ~<
Pro, the coal mining face must prepare a construction plan in the mining.
Hello! We will be glad to answer your questions! ~<
It is an area where human beings exploit coal resources in coal-rich mining areas, which are generally divided into underground coal mines and open-pit coal mines. When the coal seam is far away from the surface, it is generally chosen to dig a roadway underground to mine coal, which is an underground coal mine. When the distance between the coal seam and the surface is very close, a group chooses to directly strip the surface soil layer to dig the coal at the expense of Hongxin, which is an open-pit coal mine.
The vast majority of coal mines in China belong to underground coal mines. The scope of the coal mine includes a large area above and below ground, as well as related facilities.
Legal analysis: On the side of the newly excavated transportation roadway of new mines and production mines, there must be a sidewalk with a width of more than 1m (1m for mines transported by comprehensive mechanized coal mining and trackless rubber-tyred vehicles) from the height of the roadway ballast, and the height of the pipeline hanging shall not be less than that >>>More
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