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A two-stage ultrafine pulverizer

A superfine pulverizer and coarse crushing technology, which is applied in the direction of grain processing, etc., can solve the problems of large total energy consumption, large floor area, and poor uniformity of crushing particle size, etc., so as to reduce the total cost, occupy a small area, and reduce the total The effect of energy consumption

Active Publication Date: 2021-11-12
FAMSUN CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The secondary crushing process has the disadvantages of high cost of purchasing other equipment, large total energy consumption, large floor area, and is not suitable for small feed mills.
[0004] 1. The pulverization time of the superfine pulverizer is long, the energy consumption is high, and the uniformity of the pulverization particle size is poor;
[0005] 2. Poor crushing effect on coarse fiber materials;
[0006] 3. The hammer knife and ring gear of the ultrafine powder are greatly worn

Method used

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  • A two-stage ultrafine pulverizer
  • A two-stage ultrafine pulverizer
  • A two-stage ultrafine pulverizer

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0042] like figure 1 , 2 As shown, a two-stage ultrafine pulverizer includes a discharge chamber 2, a crushing system 4, an air transportation system, a classification system 5, a bottom bracket 8, and a feeding pipe 10.

[0043] The top of the bottom bracket 8 is equipped with a clean air chamber 7, the air inlet 11 is located on the side of the clean air chamber 7, the top of the clean air chamber 7 is equipped with an assembled liner 6, and the top of the clean air chamber 7 is connected to the crushing system 4. The air purification chamber 7 and the air inlet 11 form a wind transportation system for material transportation between the crushing system 4 and the discharge chamber 2 . Assembled liner 6 is a circular ring as a whole, and is divided into six pieces, which are installed on the flange below the crushing system 4 through bolts, and can be disassembled and assembled through the inspection door of the purified air chamber 7 for easy replacement.

[0044] like fi...

Embodiment 2

[0057] The difference from Embodiment 1 is that the structure of the shunt hood 12 is different, and the shunt shroud 12 is a single-layer conical shroud structure. The lower part of the inner wall of the shunt cover 12 is provided with a coarse crushing ring gear 30 .

Embodiment 3

[0059] like Figure 10 As shown, the difference from Embodiment 1 is that the installation positions of the coarse crushing ring gear and the coarse crushing hammer knife 30 are different, the material movement track is different, the structure of the shunt cover 12 is different, and the structure of the feed pipe 10 is different.

[0060] The number of coarse crushing ring gears is two, including the first coarse crushing ring gear 37 and the second coarse crushing ring gear 38, which are arranged oppositely. The first coarse crushing ring gear 37 is arranged on the inner wall of the crushing system, and the second coarse crushing ring gear 38 It is arranged on the outer wall of the shunt cover 12.

[0061] The fine crushing ring gear 14 is arranged on the inner wall of the crushing system.

[0062] The hammer knife mounting plate comprises a crushing support plate 28, a crushing chassis 27, and the crushing support plate 28 is installed on the top of the crushing system mai...

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PUM

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Abstract

The invention belongs to the technical field of pulverizing equipment, and specifically discloses a two-stage ultrafine pulverizer, comprising a discharge chamber, a pulverization system and an air transport system. A classification system is arranged in the discharge chamber, and a feed pipe is arranged on the pulverization system; It is used for material conveying of the crushing system and the discharge chamber; it is characterized in that the crushing system includes a shunt hood, a coarse crushing device, and a fine crushing device, and the coarse crushing device and the fine crushing device are arranged in sequence along the material movement direction. The invention realizes the requirement that the target particle size can be achieved by the primary crushing process of only one vertical ultrafine pulverizer, which not only improves the crushing efficiency, but also has a good crushing effect on tough materials, and at the same time reduces the traditional secondary crushing. The total energy consumption and total cost of the process have broad application prospects.

Description

technical field [0001] The invention relates to the technical field of pulverizing machinery and equipment, in particular to a two-stage superfine pulverizer. Background technique [0002] The material (generally less than 1mm) after primary cleaning, magnetic separation and primary crushing enters the pulverizer from the feeder for crushing. The linear velocity of the edge of the crushing disc can reach 130m / s. Under the action of huge centrifugal force, the material is crushed by the impact of the hammer knife installed on the crushing disc, and then is spun to the surrounding ring gear at a very high speed. Impact smashes. The high-speed airflow passes between the hammer knife and the ring gear, and its pressure changes sharply, forming alternating loads on the material. Under the action of collision shear, the material is split into fine powder. The pulverized material passes through the flow guide of the shunt cover and the convex cover, and then enters the classific...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B02C13/18B02C13/28B02C13/282B02C13/288B02C23/30
CPCB02C13/1814B02C13/2804B02C13/282B02C13/288B02C23/30
Inventor 黄博文姚正伟
Owner FAMSUN CO LTD
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