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A Two-Stage Dynamic Rotor Powder Separator with Adjustable Particle Size Grading of Finished Products

A particle size-adjustable technology, which is applied in the direction of solid separation, separating solids from solids with airflow, chemical instruments and methods, etc., can solve the problems of fast blade wear and can not adjust product particle size distribution, etc., to achieve reduction High workshop height, high energy utilization efficiency, and the effect of reducing resistance

Active Publication Date: 2022-05-03
TIANJIN CEMENT IND DESIGN & RES INST
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] Aiming at the problem that the structure of the powder separator in the prior art cannot adjust the particle size distribution of the product and the wear speed of the blade is fast, the present invention provides a two-stage dynamic rotor powder separator that can adjust the particle size distribution of the finished product. The powder separator can be used It is used to adjust the particle size distribution of the product, increase the service life of the blade, reduce the resistance of the powder classifier, and optimize the product performance

Method used

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  • A Two-Stage Dynamic Rotor Powder Separator with Adjustable Particle Size Grading of Finished Products
  • A Two-Stage Dynamic Rotor Powder Separator with Adjustable Particle Size Grading of Finished Products
  • A Two-Stage Dynamic Rotor Powder Separator with Adjustable Particle Size Grading of Finished Products

Examples

Experimental program
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Embodiment 1

[0060] see Figure 1-8 , the embodiment of the present invention provides a two-stage dynamic rotor powder separator that can adjust the particle size distribution of the finished product, including a housing 1, a motor 2, a reducer 3, a transmission shaft 4, a feeding port 5, a spreading disc 6, Air inlet 7, inner rotor 8, inner blade 81, outer rotor 9, outer blade 91, inverted cone 12, return chamber 14, finished product chamber 15, finished product outlet 15-1, return outlet 14-1;

[0061] The motor 2 is located above the casing 1, and the motor 2 is connected to the transmission shaft 4 through the reducer 3 to drive the transmission shaft 4 to rotate. The feeding port 5 is located at the top of the housing 1, and the material is lifted mechanically, the energy utilization efficiency is higher than that of the pneumatic lifting, and the energy consumption of the system is reduced by wind; at this time, a material spreading plate 6 is set under the feeding port 5, and the m...

Embodiment 2

[0084] see Figure 9 , the difference from Example 1 is that the feeding port 5 in the two-stage dynamic rotor powder separator of this embodiment is located on the side of the housing 1, and the spreading disc 6 is not provided, and the feeding port 5 and the air inlet 7 are the same mouth. The feeding port 5 overcomes the problems of the gravity and energy consumption of materials lifted upwards on one side, and is more energy-saving.

Embodiment 3

[0086] see Figure 10 , the present embodiment provides a self-dust-collecting two-stage dynamic rotor powder separator, which is composed of the two-stage dynamic rotor powder separator 25 and the cyclone 26 provided in Embodiment 1, and the finished product outlet of the two-stage dynamic rotor powder separator 25 is 15-1 is connected with the inlet of the cyclone 26, and the separation efficiency of the cyclone is greater than 92%. Compared with the traditional process layout, the height of the workshop of the cyclone is reduced by 20-30%, and the height of the overall grinding workshop is reduced by 10-20%.

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Abstract

The invention discloses a two-stage dynamic rotor powder separator capable of adjusting the particle size distribution of finished products, which includes a housing, a driving device, a transmission shaft, a feeding port, an air inlet, an inner rotor, an inner blade, an outer rotor, an outer blade, Return chamber, finished product chamber; the feeding port is located on the top of the shell or on the side of the shell, and the air inlet is located on the side of the shell; the inner rotor and the outer rotor are installed in the center of the shell and set coaxially; the lower part of the drive shaft is connected to the inner rotor, The inner rotor rotates in the same direction as the transmission shaft; the outer rotor is an internal gear structure, and the transmission shaft is an external gear transmission structure. The outer rotor is connected to the transmission shaft through multiple transmission gears, and the outer rotor is driven to rotate through the transmission shaft. The shafts are opposite; the inner blade and the outer blade are willow-shaped blades; the return chamber is located on both sides of the lower part of the housing, the finished product chamber is located in the middle of the lower part of the housing, and the top of the finished product chamber is connected to the bottom of the inner rotor. The invention can adjust the particle size distribution of the product, increase the service life of the blade, reduce the resistance of the powder classifier and optimize the performance of the product.

Description

technical field [0001] The invention belongs to the technical field of powder separators, in particular to a two-stage dynamic rotor powder separator which can adjust the particle size distribution of finished products. Background technique [0002] The grading of cement particles has a great influence on the performance of cement. According to Zhang Xiaofeng's research, among all the particles that make up cement, the particles of 3-30 μm play a leading role in the increase of cement strength, and the total content should not be less than 65%. The particles between them are more important to the cement strength, and the more they are contained, the better. The hydration rate of fine particles <3μm is very fast, and some of them are even completed during the stirring process, so these fine particles are only beneficial to the early strength of cement. The degree of hydration of particles of 30-60 μm is low, while the activity of coarse particles larger than 60 μm is very...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B07B7/083B07B11/06B07B11/00B07B11/02
CPCB07B7/083B07B11/06B07B11/00B07B11/02
Inventor 聂文海杜鑫刘畅柴星腾秦中华
Owner TIANJIN CEMENT IND DESIGN & RES INST