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

A hydraulic support retraction method adapted to the length reduction of fully mechanized caving face

A fully-mechanized caving face and hydraulic support technology, which is applied to mine roof supports, earthwork drilling, mining equipment, etc., can solve the problems of narrow tail space, high safety risks, and long time-consuming, so as to reduce the removal process, The effect of reducing labor intensity and reducing personnel

Active Publication Date: 2022-06-28
CCTEG COAL MINING RES INST +1
View PDF8 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] Since the tails of the front and rear scraper conveyors are arranged in parallel, and the tail space is narrow, only the transition bracket 2-1 can be used for support. In this way, when the rack is withdrawn, the transition bracket 2-1 can only be withdrawn first, and then withdrawn. The middle bracket 3-9, and then install the transition bracket 2-1 back. This method of removing the bracket is cumbersome, has great safety risks, and takes a long time

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
  • A hydraulic support retraction method adapted to the length reduction of fully mechanized caving face
  • A hydraulic support retraction method adapted to the length reduction of fully mechanized caving face
  • A hydraulic support retraction method adapted to the length reduction of fully mechanized caving face

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0038] The embodiments of the present invention will be described in further detail below. Contents that are not described in detail in the embodiments of the present invention belong to the prior art known to those skilled in the art.

[0039] In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. The indicated orientation or positional relationship is based on the orientation or positional relationship shown in the accompanying drawings, which is only a simplified description for the convenience of describing the present invention, rather than indicating or implying that the indicated device or component must have a specific orientation or a specific orientation. construction and operation, and therefore should not be construed as limiting the invention.

[0040] like Figure 1-5 As shown, the front scraper conveyor head 3-1 and the rear scraper conveyor he...

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 provides a hydraulic support retraction method adapted to the reduction of the length of the fully mechanized caving working face, which is characterized in that the head of the front scraper conveyor and the tail of the front scraper conveyor are arranged in parallel, that is, the The central axis is parallel to the conveying direction of the scraper conveyor, the head of the rear scraper conveyor is arranged horizontally, and the tail of the rear scraper conveyor is arranged vertically, that is, the axis of the power part is perpendicular to the conveying direction of the scraper conveyor; The tail of the scraper conveyor is at the part of the working face, which is supported by the middle hydraulic support; the tail of the scraper conveyor is at the part of the mining roadway, which is supported by two special end hydraulic supports placed opposite to each other, and the hydraulic support at the end near the working face It is called the front-end head hydraulic support, and the other end hydraulic support is called the rear-end hydraulic support. The base part after the combination of two relatively placed special hydraulic supports is in a "concave" shape, which can be used for placing the rear scraper conveyor machine. The rear power section provides space.

Description

technical field [0001] The invention relates to an arrangement method and a rack-moving method under the condition that the length of a fully mechanized caving face is gradually reduced, in particular to a retracting method of a hydraulic support adapted to the reduced length of a fully mechanized caving face. Background technique [0002] The working face is affected by factors such as geological conditions, preparation methods, and production technical conditions, and the length of the working face will gradually become narrower, especially when mining edge coal or isolated island working faces. [0003] like figure 1 As shown in the figure, the mining of this type of working face will require the removal of redundant scraper conveyors and hydraulic supports as the working face continues to shorten. For the top coal caving working face with front and rear scraper conveyors, due to the large number of supporting equipment, the matching relationship is complicated. etc., it...

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
Patent Type & Authority Patents(China)
IPC IPC(8): E21D23/16E21D23/18E21F13/06
CPCE21D23/16E21D23/18E21F13/06
Inventor 李明忠于翔刘健亓玉浩刘新华张金虎李提建
Owner CCTEG COAL MINING RES INST
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