Emergency stop device and emergency stop method for searching falling objects during working of large crusher

Abstract

The invention discloses an emergency stop device for searching falling objects during working of a large-scale pulverizer, which comprises an operation table arranged in an operation room, the operation table comprises a controller, the controller is electrically connected with each driving device of the pulverizer and is used for controlling the working state of the pulverizer, the controller ofthe operation table is also electrically connected with an emergency stop button arranged on the operation table, and the emergency stop button is used for emergently stopping the working state of thefirst main belt conveyor at the downstream of the crusher in an emergency stop state. The invention further discloses an emergency stop method. The problem that the reliability of the passing methodis extremely poor when the problem is solved in the current industry is solved. The probability that the falling hammer head and hammer handle are found before entering a coal tower is greatly increased, blockage, jamming and damage to a coke oven vehicle spiral feeder and a dry quenching rotary sealing valve are avoided, production continuity is guaranteed, and severe damage to equipment is reduced.

Description

technical field [0001] The invention relates to the technical field of interlocking control of upstream and downstream belt processes in the large-scale bulk material crushing process and transportation industry, in particular to an emergency stop device and an emergency stop method for searching for items dropped when a large pulverizer is working. Background technique [0002] In the coking industry, the blended coal needs to be crushed and refined before entering the coke oven, so a large pulverizer is required to crush the blended coal. At present, the processing capacity of a single large pulverizer that is widely used is generally 500t / h, and the speed is 980r / min. During production, it is dual-purpose and one standby, that is, two are running at the same time, and one is standby. According to the different requirements for coal fineness, the number of supporting hammers and hammer cakes is slightly different. Generally, there are 58 sets of heavy-duty hammers and hamm...

AI Technical Summary

Problems solved by technology

However, the reliability of this method of operation is extremely poor, and the probability of finding the dropped hammer head and hammer handle is extremely low. Sexual disadvantages, resulting in hammerheads or hammer cakes entering the coal tower with the high-speed belt system, greatly reducing the probability of hammerheads or hammer cakes being found on the downstream belt

In the end, the hammer head or hammer cake will cause blockage, jamming and damage to the coke oven vehicle screw feeder and CDQ rotary sealing valve in the subsequent production operations, interrupting continuous production and causing serious damage to the above equipment

Because the material of the hammer head and the hammer cake is made of alloy, and after falling, they are wrapped in the thick coal flow layer and run at high speed. In actual production, the method of installing an iron remover on the downstream belt of the pulverizer cannot effectively solve this problem.

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