Closed-cycle cooling system of continuous coal mining machine

Abstract

The invention relates to a closed-cycle cooling system of a continuous coal mining machine, which solves a problem that the component cooling of the existing continuous coal mining machine depends onan external water source. According to the invention, a water inlet of a water pump is connected with a water outlet of a water supplementing tank, a water outlet of the water pump is connected with awater inlet of a water-cooled motor, a water inlet of a safety valve is connected with the water outlet of the water pump and the water inlet of the water-cooled motor, and a water outlet of the safety valve is connected with the water inlet of the water pump and a water outlet of a filter; a liquid control opening of each radiator is connected with the complete machine hydraulic system, a waterinlet of each radiator is connected with the water outlet of the water-cooled motor, the water outlet of the water-cooled motor is connected with a water inlet of a water tank, a water inlet of the water tank is connected with a water outlet of each radiator, and the water outlet of the water tank is connected with a water inlet of the water supplementing tank; and the water inlet of the water supplementing tan is connected with the water outlet of the water tank, and the water outlet of the water supplementing tank is connected with the water inlet of the water pump. The closed-cycle coolingsystem solves the problems that the continuous coal mining machine depends on external cooling water when being applied to open pit slope mining and that a large amount of cooling wastewater results in damages of the roadway floor.

Description

technical field [0001] The invention relates to a circulation cooling system for cooling a water-cooled motor and a frequency converter box of a continuous coal mining machine, in particular to a closed circulation cooling system of a continuous coal mining machine. Background technique [0002] The continuous miner is widely used in coal mine tunneling and mining of edge coal, "three-down" coal, irregular blocks, and coal resources that are not suitable for fully-mechanized mining face mining. It has the advantages of wide application range, low investment, flexible operation, high mining efficiency and high degree of automation, and has a very broad application prospect in our country. [0003] The continuous coal mining machine needs to use medium water to cool down its own motors and frequency converters during operation. Because my country’s existing coal mines already have a complete water supply system, the underground cooling water of the continuous coal mining machi...

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Problems solved by technology

[0004] In order to solve the problem that the cooling of components such as the motor and frequency converter of the existing continuous coal mining machine depends on the external water source and the discharge of a large amount of cooling waste water damages the floor of the roadway, the present invention provides a closed cycle cooling system for the continuous coal mining machine. system

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