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Open-flow powder mill

A powder selection and tailing technology, applied in cement production, grain processing, etc., can solve the problems of reduced mill output, increased unit energy consumption, and reduced economic benefits, so as to improve grinding efficiency, reduce power consumption, and improve powder The effect of grinding efficiency and quality

Inactive Publication Date: 2005-12-21
WUHAN UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, the output of the mill decreases to varying degrees, and the unit energy consumption increases, which breaks the balance of the production capacity of the original kiln-grinding system, resulting in a decrease in the economic benefits of the enterprise.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

example 1

[0038] Example 1: ￠2.4×8.0m open flow grinding:

[0039] Such as figure 1 As shown, it includes a rotating cylinder 8, a front bearing seat 7, and a rear bearing seat 10. The front end (grinding head) of the rotating cylinder 8 is connected with the front bearing seat 7 by a bearing, and the tail end of the rotating cylinder 8 is connected by a bearing and The rear bearing housings 10 are connected, and the rotating cylinder 8 is provided with a material inlet 1 and a material outlet 6; the rotating cylinder 8 is fixed with two powder selection devices, a material lifting device, and a finished product control device.

[0040] Such as figure 1 , figure 2 , image 3 , Figure 4 , Figure 5 , Figure 6 , Figure 7 , Figure 8 , Figure 9 , Figure 10 As shown, the powder selection device includes a distribution hopper 11, a drum sieve 19, a wheel belt 25, a feed grate 26, an air distribution device, and a discharge grate 22. The middle part of the distribution hopper ...

example 2

[0065] Example 2: ￠2.6×13m open-flow grinding: basically the same as Example 1, the difference lies in the specific parameters. The specific parameters are as follows:

[0066] The mill is divided into three compartments by 2 sets of powder selection devices, the first set of powder selection device is installed at a distance of 3000mm from the grinding head,

[0067] Feed grate plate 26 is 16 pieces, and the seam width of feed grate seam is 17mm;

[0068] The trommel 19 is 10 pieces, and the hole width of the sieve hole 20 on the trommel 19 is 5.6mm;

[0069] The sub-hopper 11 is 1 piece, and the diameter of the sub-hopper 11 is 900mm;

[0070] The thickness of the air distribution plate 39 of the air distribution device is 4mm, the area of ​​the round hole 40 is 25% of the area of ​​the air distribution plate 39, the diameter of the hole on the air distribution plate is 7mm, and the vortex whirlwind lifting material bar 21 is 8 pieces, forming Arc-shaped, the height of the ...

example 3

[0087] Example 3: ￠3.0×13m open-flow grinding: basically the same as Example 1, the difference lies in the specific parameters.

[0088] The specific parameters are as follows:

[0089] The mill is divided into three compartments by 2 sets of powder selection devices, the first set of powder selection device is installed at a distance of 2250mm from the grinding head,

[0090] Feed grate plate 26 is 20 pieces, and the seam width of feed grate seam is 16mm;

[0091] The trommel 19 is 9 pieces, and the hole width of the sieve hole 20 on the trommel 19 is 6.6mm;

[0092] The sub-hopper 11 is 1 piece, and the diameter of the sub-hopper 11 is 1000mm;

[0093] The thickness of the air distribution plate 39 of the air distribution device is 4mm, the area of ​​the circular hole 40 is 20% of the area of ​​the air distribution plate 39, the diameter of the hole on the air distribution plate is 4mm, and the vortex whirlwind lifting material bar 21 is 10 pieces, forming Arc-shaped, the...

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Abstract

This invention belongs to the power engineering, referring to cement and mineral sophistication production equipment. It includes revolving canister(8),front axletree seat(7),back axletree seat(10).The front of (8) is connected to (7) by axletree, the back to (10).There are feed-in meatus (1) and feed-out meatus (6) in (8).The character is that in (8) there are 1-3 picking power equipments. This invention integrates levigation and picking to increase output, reduce energy sourse, decrease expenditure. Comparing with the same scale equipment, its output increases by more than 20% and the consumption of electricity decreases by more than 30%.

Description

technical field [0001] The invention belongs to the field of powder engineering, and in particular relates to grinding production equipment for cement and mineral admixtures. Background technique [0002] At present, the grinding systems of cement and mineral admixtures (slag powder, steel slag powder, zeolite powder, etc.) running online in my country are divided into two systems: open flow mill and circular flow mill. The open flow mill refers to the tube mill without a powder selection system. By setting various types of compartment plates in the mill, the bins are divided, and by adjusting the loading capacity of the grinding body, gradation, the speed of the mill, and the air volume and wind speed. To control mill production. Circular flow mill is to add an external powder selection system on the basis of open flow mill. By increasing the throughput of powder in the mill and sending the material into the powder separator, the coarse material is returned to grinding, an...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B02C17/00
CPCY02P40/10
Inventor 胡曙光陈平丁庆军何亨美张锋吕林女王发洲何永佳彭波
Owner WUHAN UNIV OF TECH
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