Continuous circulation type coal crushing equipment

Abstract

The invention discloses continuous circulation type coal crushing equipment. The continuous circulation type coal crushing equipment comprises a classifier and a raw coal crushing machine, wherein a rotary table is arranged inside the classifier; the outer edge of the rotary table is provided with an isolating ring; a driving motor is used for driving the rotary table to rotate; a material dialing frame and a material sieving net are arranged on the outer wall of the isolating ring; a raw coal inlet and a coarse coal outlet are formed in the classifier; the side wall of the coarse coal outlet is communicated with a sundry box; the sundry box is communicated with a negative pressure fan; a cleaning hole is formed in the bottom of the sundry box; the raw coal inlet is communicated with a discharge hole of the raw coal crushing machine; the coarse coal outlet is communicated with a feeding hole of the raw coal crushing machine through an inclined slideway; a fine coal discharge gate is formed in the classifier; a discharge valve is arranged at the fine coal discharge gate. The continuous circulation coal crushing equipment has the advantages that the continuous circulation crushing can be carried out on raw coal, and the raw coal does not need to be manually transferred during the coal crushing process, so that the labor force and the transportation equipment cost during coal washing are reduced, the raw coal treatment time is shortened, and the equipment is suitable for being popularized in a large scale in the coal industry, the raw coal washing rate is increased, the pollution level to the environment is reduced, and the waste of transport capacity is reduced.

Description

technical field [0001] The invention relates to a raw coal processing equipment, in particular to a continuous circulation coal crushing equipment. Background technique [0002] Coal washing is an important process in the deep processing of coal. After the raw coal is washed, the impurity content carried by it is greatly reduced, and the pollutants and ash produced after combustion are greatly reduced, realizing the clean utilization of coal. However, due to the lack of connection between various equipment such as crushers and screening machines used in the current coal washing process, after the raw coal is crushed and screened, it is necessary to manually transfer the qualified crushed coal to the next process, and the unqualified The coal block is transported back to the crusher for crushing. During the whole coal washing process, the raw coal needs to be transferred between various equipments many times, resulting in cumbersome operation of the coal crushing link in the ...

AI Technical Summary

Problems solved by technology

When coal-fired enterprises use unwashed raw coal as fuel, the pollutants emitted will increase significantly compared with burning clean coal, and the combustion efficiency is very low. The ash content in raw coal is high, and it is difficult to clean up the residue after combustion. In addition, since most of my country's coal-producing areas are far away from economically developed areas with large coal consumption, the coal transportation volume is large and the transportation distance is long. The average coal transportation distance is about 600 kilometers. a lot of capacity

Images