Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Comprehensive mining opposite-pull working face coal excavating process for thin coal bed

A technology for pulling working faces and coal mining faces, which is applied in ground mining, mining equipment, earthwork drilling and mining, etc. It can solve the problems of high tunneling rate of 10,000 tons in thin coal seams, low production efficiency and low benefit of comprehensive mechanized coal mining technology, etc. Waste of resources and other issues, to achieve the effect of saving excavation costs, effectively utilizing manpower, and improving production efficiency

Inactive Publication Date: 2009-09-09
BINHU COAL MINE ZAOZHUANG MINING GRP
View PDF0 Cites 26 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The existing thin coal seam coal mining technology has the following disadvantages: (1) Since each working face needs transportation lanes and material lanes, the tunneling rate of thin coal seams is high per 10,000 tons
(2) A 3-6 meter safe coal pillar should be left between the two working faces, which wastes some resources
(3) Blast mining or high-grade general mining technology of thin coal seam, and comprehensive mechanized coal mining technology have low production efficiency and benefits

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Comprehensive mining opposite-pull working face coal excavating process for thin coal bed

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0013] A kind of fully mechanized thin coal seam coal mining technology, characterized in that: it includes:

[0014] (1), there are two working face material lanes 1 and a central working face shared transportation lane 5 arranged side by side, the adjacent roadways are working faces, and the middle working face shared transportation lane 5 is selected as the shared roadway;

[0015] (2) Each working face is equipped with a working face shearer 4, a working face scraper conveyor 2, and a hydraulic support 3, and then the two working faces are side by side for comprehensive mechanized coal mining.

[0016] Since the two working faces share a transport roadway, the pressure on the top rock is relatively high. In order to ensure the support strength, the hydraulic support at the end of the working face and the "∏" steel greenhouse are jointly supported for the maintenance of the shared transport roadway. In order to leave the passage for personnel to enter and exit the common tr...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention relates to a comprehensive mining opposite-pull working face coal excavating process for a thin coal bed, comprising the following steps: 1, two working face material lanes and a working face common transporting lane are arranged in parallel, wherein part between two adjacent lanes is a working face, and the middle working face common transporting lane is selected as a common lane; 2, each working face is provided with a working face coal mining machine, a working face scraper transporter and a hydraulic bracket, and two working faces simultaneously carry out comprehensive mining in parallel. In order to leave a channel of the common transporting lane for passing in and out for workers between the hydraulic brackets of the two working faces, the two working faces are staggered with a certain distance. The invention reduces the ten-thousand-ton drivage ratio of a mine, saves the cost, realizes non-coal pole exploitation between the working faces, improves the recovery ratio of resources and increases the yield of the same unit workers by almost one time.

Description

technical field [0001] The invention relates to a thin coal seam mining technology for coal mine mining, which is a comprehensive mechanized coal mining technology for pulling working faces in thin coal seams. Background technique [0002] In the current existing technology, the blast mining or high-grade general mining technology is mainly used to mine thin coal seams. At present, the more advanced thin coal seam comprehensive mechanized coal mining technology adopts single working face production, and the transportation roadway is arranged. There is one road and one material lane, and the mechanical equipment is a coal shearer, a hydraulic support, a scraper conveyor on the working face, and a bridge transfer machine. The existing thin coal seam coal mining technology has the following disadvantages: (1) Since each working face needs a transportation lane and a material lane, the tunneling rate of thin coal seams is high per 10,000 tons. (2) A 3-6 meter safe coal pillar s...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
IPC IPC(8): E21C41/16E21F13/06E21D15/00E21D17/00
Inventor 张立俊刘真伦马士亮王思栋郭士启赵曰来张伟贺伟
Owner BINHU COAL MINE ZAOZHUANG MINING GRP
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com