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Coal mill for boiler

A boiler coal pulverizer and grinding roller technology, applied in the field of boiler coal pulverizers, can solve problems such as easy dust generation, complex structure, and low operational stability

Inactive Publication Date: 2015-10-28
WUXI YICHEN MOLD TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, the existing coal mill has complex structure, low operation stability and easy to generate dust

Method used

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  • Coal mill for boiler

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Embodiment Construction

[0020] refer to figure 1 As shown, a boiler coal pulverizer includes a distributor 1, a dynamic separator 2, an upper frame body 3, a lower frame body 4 and a base 5, and the distributor 1, dynamic separator 2, upper frame body 3, and lower frame body 4 and the base 5 are arranged sequentially from top to bottom, the distributor 1 is provided with a drive motor 6, the distributor 1 is connected with the drive motor 6, and the dynamic separator 2 is provided with rotating blades 7 and stationary blades 8. A return coal hopper 9 is provided under the dynamic separator 2, a loading frame 10 and a pull rod 11 are provided under the return material hopper 9, and the pull rod 11 is arranged on one side of the loading frame 10, and the loading frame 10 is fixedly connected to the base 5 through a pull rod 11. A swing adjustment device 12 is arranged on the loading frame 10. A grinding roller 13 is arranged inside the swing adjustment device 12. There are three grinding rollers 13. Th...

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Abstract

The invention discloses a coal mill for a boiler. The coal mill comprises a distributor, a dynamic separator, an upper frame body, a lower frame body and a base which are sequentially arranged from top to bottom, wherein a driving motor is arranged on the distributor; the distributor is in transmission connection with the driving motor; a rotary blade and a stationary blade are arranged in the dynamic separator; a refeed coal scuttle is arranged at the lower part of the dynamic separator; a loading rack and a pull rod are arranged below the refeed coal scuttle; the pull rod is arranged on one side of the loading rack; the loading rack is fixedly connected with the base through the pull rod; two grinding rollers are arranged on the inner side of a swinging and adjusting device; a motor is arranged on one side of the lower frame body; a speed reducer is arranged in the lower frame body. The coal mill for the boiler is compact in structure, stable in running, high in service efficiency and convenient to operate, can discharge dust during grinding to reduce pollution, and allows the diameter of ground coal powder to be adjusted.

Description

technical field [0001] The invention relates to the technical field of boiler auxiliary equipment, in particular to a boiler coal pulverizer. Background technique [0002] A coal mill is a machine that breaks coal and grinds it into coal powder. It is an important auxiliary equipment for pulverized coal furnaces. There are vertical mills, high-pressure suspension roller mills, medium-speed micro-powder mills, overpressure trapezoidal mills, and Raymond mills. The coal grinding process is the process in which coal is broken and its surface area is continuously increased. To add new surface area, the bonding forces between solid molecules must be overcome, thus expending energy. Coal is ground into pulverized coal in a coal mill, mainly through crushing, crushing and grinding. Among them, the crushing process consumes the least energy. The grinding process is the most energy-intensive. All kinds of coal mills have the above two or three methods in the pulverization pr...

Claims

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Application Information

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IPC IPC(8): B02C15/00B02C13/14B02C23/02B02C23/18
Inventor 钱根来李康魏鑫夏守忠陈微霞丁亭
Owner WUXI YICHEN MOLD TECH
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