Coal mill for thermal power plant

A thermal power plant and coal grinding technology, which is applied in the direction of dryers, screens, grilles, etc., can solve the problems of reducing coal grinding efficiency, improve coal grinding efficiency, increase caliber, and save time and manpower for cleaning waste Effect

Inactive Publication Date: 2021-01-12
泉州市泉润吉明科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The technical problem to be solved by the present invention: in view of the fact that the current coal mill needs to manually take out the coal mine with larger particles on the filter screen, when taking out the coal mine wit

Method used

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  • Coal mill for thermal power plant
  • Coal mill for thermal power plant
  • Coal mill for thermal power plant

Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0024]Example one:

[0025]Such asFigure 1-3A coal grinding device for a thermal power plant according to the embodiment of the present invention shown includes a workbench 1, a crushing device, a conveying device, an automatic screening and air drying device, and a PLC controller 2. Four support columns 22 are fixed under the workbench 1. The upper surface of the worktable 1 is set in a plane to carry the crushing device, the conveying device, the automatic screening air-drying device and the PLC controller 2. The crushing device and the PLC controller 2 are arranged on one end of the worktable 1, and the conveying device is arranged under the crushing device. Device, one end of the conveying device away from the crushing device is equipped with an automatic screening and air drying device.

[0026]The specific settings and functions of its crushing device, conveying device, automatic screening and air drying device, and PLC controller 2 will be specifically described below.

[0027]The pul...

Example Embodiment

[0031]Embodiment two:

[0032]Such asFigure 1-3As shown, for the conveyor belt 8, baffles 19 are provided above and on both sides of the conveyor belt 8. One end of the baffle 19 is fixedly connected to the outer wall of the crushing chamber 3, and the other end of the baffle 19 is fixedly connected to the outer wall of the drying cylinder 9, which can effectively Prevent external wind from blowing off the pulverized coal on the conveyor belt 8; for the support column 22, a rubber pad 20 is fixed under the support column 22, which can play the role of shock absorption and anti-skid; for the inlet 7 , A hopper 21 is fixed on the inlet 7 to increase the diameter of the inlet 7 to facilitate feeding; for the air preheater 11, the air preheater 11 is installed in the exhaust duct of the boiler, which can The high-temperature flue gas in the exhaust duct is used to preheat the air, thereby increasing the effect of air-drying the pulverized coal.

[0033] In summary, with the help of the above-...

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Abstract

The invention discloses a coal mill for a thermal power plant, and belongs to the field of coal processing equipment. According to the technical scheme, the coal mill comprises a workbench, a smashingdevice, a conveying device, an automatic screening and air-drying device and a PLC, four supporting columns are fixedly arranged below the workbench, the smashing device and the PLC are arranged at one end of the workbench, the conveying device is arranged below the smashing device, and the automatic screening and air-drying device is arranged at one end, far away from the smashing device, of theconveying device; the smashing device comprises a smashing chamber, the smashing chamber is fixedly arranged on the workbench, and a first motor is fixedly arranged on the smashing chamber; and according to the coal mill, coal can be smashed, filtered and air-dried, large-particle filter residues in a filter cartridge can be automatically conveyed into a filter residue recycling box to be conveniently recycled and reground, shutdown for cleaning is not needed, time and labor wasted for cleaning are saved, and the coal milling efficiency is further improved.

Description

technical field [0001] The invention belongs to the technical field of coal processing equipment, and in particular relates to a coal mill for a thermal power plant. Background technique [0002] The coal mill is the main equipment of the pulverized coal preparation system of the thermal power station. The function of the steel ball coal mill is to dry the coal, crush the coal through the steel ball and the liner in the cylinder of the steel ball mill, and grind it into coal powder to supply the boiler for combustion. In the coal-fired power plant boiler, for To improve the combustion rate and ignition performance of pulverized coal, coal pulverizers are widely used to grind raw coal into pulverized coal and send it into the furnace for combustion through pipelines. In the process of sending the raw coal into the furnace after being ground by the coal mill, there are two ways: 1. The direct blowing pulverizing system, that is, the coal is directly sent to the furnace for co...

Claims

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Application Information

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IPC IPC(8): B02C13/18B02C13/28B02C13/286B02C13/26B02C23/16B07B1/20F26B21/00
CPCB02C13/18B02C13/26B02C13/2804B02C13/286B02C23/16B02C2013/28609B02C2023/165B07B1/20F26B21/001
Inventor 翟治国
Owner 泉州市泉润吉明科技有限公司
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