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Coal fine crusher

A fine crusher and coal technology, applied in grain processing, etc., can solve the problems of fast hammer head wear, low crushing efficiency, poor coal particle size uniformity, etc., achieve dense distribution of peg boards, improve crushing uniformity, and improve coal crushing uniformity Effect

Inactive Publication Date: 2012-07-11
HMEI THREAD CO LTD OF YINBIN SICHUAN +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] The purpose of the present invention is to solve the problems of poor coal particle size uniformity, low crushing efficiency and fast wear of hammerheads in existing fine crushers, and to provide a coal fine crusher suitable for fuel preparation of thermal power plant boilers

Method used

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Examples

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Effect test

Embodiment 1

[0032] like figure 1 and figure 2 As shown, the coal fine crusher includes a main shaft 1 and a rotor assembly 2 sleeved on the main shaft 1. The rotor assembly 2 includes a bolt plate 3, a hammer arm 4 and a hammer head 5. On the main shaft 1, there are 3 rotor assemblies arranged side by side. into 2. The bolt plates 3 of the adjacent rotor assemblies 2 are connected through a positioning sleeve 6 . The thickness of the peg plate 3 is 18 mm. The diameter of the hammer head 5 is 30 mm.

Embodiment 2

[0034] like figure 1 and image 3 As shown, the coal fine crusher includes a main shaft 1, a rotor assembly 2 sleeved on the main shaft 1, the rotor assembly 2 includes a bolt plate 3, a hammer arm 4 and a hammer head 5, and 5 rotor assemblies are set side by side on the main shaft 1. into 2. The bolt plates 3 of the adjacent rotor assemblies 2 are connected through a positioning sleeve 6 . The thickness of the peg plate 3 is 25mm. The diameter of the hammer head 5 is 40mm. The axes of the rotor assemblies 2 on the main shaft 1 are staggered.

Embodiment 3

[0036] like figure 1 and Figure 4 As shown, the coal fine crusher includes a main shaft 1, a rotor assembly 2 sleeved on the main shaft 1, the rotor assembly 2 includes a bolt plate 3, a hammer arm 4 and a hammer head 5, and 8 rotor assemblies are set side by side on the main shaft 1. into 2. The bolt plates 3 of the adjacent rotor assemblies 2 are connected through a positioning sleeve 6 . The thickness of the peg plate 3 is 30mm. The diameter of the hammer head 5 is 50 mm. Hammer arms 4 are installed on both sides of the bolt plate 3 , and the positions of the hammer arms 4 on the two sides are arranged correspondingly.

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Abstract

The invention discloses a coal fine crusher, which belongs to the field of boiler fuel preparation equipment for thermal power plants and comprises a main shaft and rotor assemblies sleeved on the main shaft. Each rotor assembly comprises a bolt plate, a hammer arm and a hammer head. The coal fine crusher is characterized in that at least three rotor assemblies are sleeved on the main shaft. The coal fine crusher is additionally provided with rotor assembly structures, the hammer arms are reasonably arranged on the bolt plates, the problems of poor particle size evenness, low crushing efficiency and fast hammer head abrasion for coal crushing are solved. The coal fine crusher has the advantages of being even in particle size, high in crushing efficiency and difficult in abrasion of the hammer head for coal crushing.

Description

technical field [0001] The invention relates to the field of thermal power plant boiler fuel preparation equipment, in particular to a coal fine crusher. Background technique [0002] In the link of boiler fuel preparation equipment, the most important thing is the coal crushing system, which is divided into coarse crushing and fine crushing. Crusher is mainly divided into: Hammer Crusher, Jaw Crusher, Impact Crusher, Cone Crusher according to its working principle. Among them, the hammer crusher has unique high quality in the field of coal crushing production. For example, when the hardness of the coal to be crushed is low, and the size of the coal itself is not very large, it is better to use a hammer crusher in this case. Jaw crushers are suitable for coal crushing with relatively large feed particle size and relatively high coal hardness, while impact crushers are suitable for secondary crushers with relatively large coal hardness and small feed particle size. Cone cru...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B02C13/02B02C13/26B02C13/28
Inventor 周宏
Owner HMEI THREAD CO LTD OF YINBIN SICHUAN
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