Coal mining and conveying machine integrating slotting, coal raking with coal mining

Abstract

The invention discloses a coal mining and conveying machine integrating slotting, coal raking with coal mining. The coal mining and conveying machine is formed by coal mining and conveying main machine and a support. A mining and conveying integral structure is formed by the coal mining and conveying main machine and coal cutting picks through a rack, a dragging chain and a conveying chain plate; the conveying chain plate is provided with an overhanging section which stretches out of a front wall plate of the rack, and the overhanging section extends towards the blocking direction of the rack along the height of the rack; the coal cutting picks are distributed on an extending section, and a slotting and coal mining structure is integrally formed by the coal mining and conveying main machine; the support is composed of a hydraulic lifting platform and a suspending arm, and the suspending arm is arranged on a supporting platform of the hydraulic lifting platform in a horizontally stretching mode; the suspending arm is connected with the rack, and a rectangular coal groove can be formed on a coal wall due to the fact that the slotting and coal mining structure is pushed by the suspending arm; and coal raking and mining is formed by a coal conveying main machine and the coal cutting picks through the conveying chain plate, wherein the coal conveying main machine is declined along with the hydraulic lifting platform, and the conveying chain plate moves to the lower part of the rack. The coal mining and conveying machine integrating slotting, coal raking with coal mining has the beneficial effects that a coal mining mode combining slotting and coal racking is formed, changing requirements of coal layers are adapted, the net coal mining rate and the coal quality are improved effectively.

Description

technical field [0001] The invention relates to a coal seam mining technology, in particular to a coal mining and transporting machine integrating cutting and raking coal mining. Background technique [0002] my country is rich in coal resources, with a large amount of storage and a variety of occurrences. According to the division of coal seam thickness in my country, the thickness of 0.8-1.3m belongs to thin coal seam, and the thickness of less than 0.8m belongs to extremely thin coal seam. In my country's coal reserves, the recoverable reserves of thin coal seams are about 6 billion tons, accounting for about 20% of the country's total coal reserves. %. However, the output of thin coal seams only accounts for 10.4% of the total national coal output, and this proportion is still showing a gradual downward trend. The main reasons are the low degree of mechanization of coal mining, low yield and efficiency of working face, high excavation rate, high mining cost and high lab...

AI Technical Summary

Problems solved by technology

Although this machine can realize mechanized coal mining, when the coal seam becomes thicker, its mining efficiency is low; when the coal seam becomes thinner, the coal mining resistance is large, the advancement is difficult, the energy consumption is high, and the gangue content is large, and the quality of coal products is low.

Images