Semi-fixed crushing station

Abstract

The invention relates to a novel semi-fixed crushing station for raw coal processing in an open pit coal mine, wherein the crushing station mainly consists of a scraper machine, a scraper machine material receiving section coal flow height limiter, a double-tooth-roller crushing machine, a crushing machine support platform, an operation room, a phase change distribution chamber and the like, wherein the scraper machine is in inclined arrangement, the inclined angle is 5 degrees to 11 degrees, the height of a machine head of the scraper machine can be regulated through regulating the length of a hoisting conveying section tank body of the scraper machine or through regulating the inclined angle of the scraper machine, scraper machine material receiving section is provided with a coal flow height limiter, the requirement that the height of the coal layer in the scraper machine is 400 to 700mm is met, the scraper machine adopts the variable-frequency driving, the speed of the scraper machine is regulated according to the height of the coal layer of the scraper machine, all modules are mutually independent, the moving and the installation are convenient, an operation room adopts an independent basis, and the influence on the body and mental health of operators as well as electric control equipment, which is caused by vibration, is reduced. The novel semi-fixed crushing station has the advantages that the starting of the scraper machine is stable, the operation is reliable, the instantaneous overload of the system can be effectively prevented, and the popularization and application values are realized.

Description

Technical field [0001] The invention relates to a new type of open-pit coal mining raw coal processing and crushing station, specifically a semi-fixed crushing station. Background technique [0002] More and more open-pit coal mines at home and abroad adopt the semi-continuous production process of single bucket-truck-crushing station-belt conveyor, and the transfer of raw coal and the movement of the crushing station are the key technologies of the semi-continuous process. The cost of the fixed crushing station is high, and the crushing station cannot move quickly. With the mining of open-pit mines, the truck transportation distance is getting longer and longer, and the operating cost is high; foreign single-roller toothed plate feeding or scraper feeding mobile crushing The station can realize frequent movement and convenient layout, but the crushing mechanism is impact type, which has a great impact on the particle size of raw coal processing, affecting the washing and re...

AI Technical Summary

Problems solved by technology

[0006] The operating room is arranged on the crushing platform, and the vibration is relatively large, which has a great impact on the electric control facilities and seriously affects the physical and mental health of the operators;

[0007] The semi-fixed crushing station's relocation module is unreasonably set up, and some modules are too large, making it inconvenient to relocate

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