Coal mill outlet total cross-section pulverized coal sampling device

Abstract

The invention discloses a coal mill outlet total cross-section pulverized coal sampling device, and relates to the field of coal mills, the coal mill outlet total cross-section pulverized coal sampling device comprises a coal mill outlet pulverized coal pipe and a bypass pipeline, the lower part of the outer surface of the coal mill outlet pulverized coal pipe is sleeved with a fixing plate, and the top of the bypass pipeline fixing plate is provided with a rotating assembly. By arranging the rotating assembly, as pulverized coal falls down through a sampling opening, the pulverized coal enters a bearing frame in a weighing groove and is weighed through an electronic scale at the bottom of the bearing frame, and after sampling is completed in the time period, a worker can make the bottom of a rotating disc slide along an annular rail, so that a rotating frame rotates by 45 degrees along a pulverized coal pipe at an outlet of a coal mill; the weighing groove for containing samples is exposed, the unoccupied weighing groove is rotated to the position of the sampling opening, then continuous sampling can be carried out, the bearing frame in the weighing groove for containing samples can be directly taken out, and the situation that the operation is not simple and convenient enough due to insufficient sampling continuity is avoided.

Description

technical field [0001] The invention relates to the field of coal pulverizers, in particular to a full-section pulverized coal sampling device at the coal pulverizer outlet. Background technique [0002] The coal pulverizer is a machine that breaks coal and grinds it into pulverized coal. It is an important auxiliary equipment for pulverized coal furnaces. The pulverized coal separator is a device that separates pulverized coal of different particles. Take samples and test the pulverized coal to know the quality of the pulverized coal. [0003] According to the Chinese patent No. CN212254761U, a full-section pulverized coal sampling device at the outlet of the coal mill is disclosed. When the pulverized coal is sampled, the linkage actuator sends an action command to operate the main road to quickly close the valve and the bypass to close quickly. The closed valve is opened synchronously; the air-powder mixture enters the sampling bypass pipe, and the gas-solid separation i...

AI Technical Summary

Problems solved by technology

[0004] Based on this, the purpose of the present invention is to provide a full-section pulverized coal sampling device at the outlet of the coal mill to solve the technical problems of inconvenient cleaning due to the adhesion of pulverized coal to the inner wall of the bypass pipe and insufficient continuity of sampling so that the operation is not simple enough

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