KR970006854Y1 - Selective separation of solid materials for pulverizer - Google Patents

Abstract

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Description

Fine powder separator

1 is a cross-sectional view of the present invention differentiation separator

2 is a perspective view of a deflection weight with a deflection of the components of the present invention

3 is a perspective view of a deflection weight having a blade with different angles on its side

4 is a perspective view of a deflection weight with different number of blade pieces attached to the side surface

5 is an overall front view of the bowl mill in which the present invention is installed.

* Description of the symbols for the main parts of the drawings *

1: Differential Supply Pipe 2: Pedestal

3: deflection weight 4: body

5: door 6: collection tube

7: recovery pipe 8: differential discharge port

10: raw material supply container 20: supply table

30: bowl mill 40: fine powder separator

50: cyclone 60: filtration device

70: product collection pain 80: exhaust pipe

90: fan

The present invention relates to a finely divided separator capable of efficiently separating and separating the pulverized particles, particularly in the apparatus of the bowl crusher for grinding phosphate, fertilizer, titanium, coal, coke and the like.

With the development of the industry, a crusher with excellent crushing performance has emerged, and a kind of crusher is spread to various sites and used to crush different materials.

Therefore, it is necessary to select the size of the crushed particles according to the type and purpose of the raw material to be crushed, and the sorting process must be batch-processed in a continuous process in the crusher itself.

The grinder is a grinder caused by the interaction of the polishing roller and the polishing table, and the pulverized particles move through the air stream and pass through a deflection plate or a curved passage to separate coarse particles from the air stream. Coarse particles are returned to the polishing table for grinding and fine particles are carried with the flow of air and discharged through the outlet.

Conventional fine powder separation device is carried by the high velocity air blown from the bottom of the polishing table when the grinding powder is pushed in the circumferential direction of the polishing table by the centrifugal force generated by the rotation of the polishing table clockwise. By the classifier, the large particles are collected separately and pulverized again, and the small particles passing through the fine separator are transferred out of the grinder through the outlet.

In this process, the vertical structure of the grinding table, the polishing roller, the raw material feeder, and the arrangement of the fine powder separator were fixedly installed, making it difficult to control the size of the particles and the disassembly and assembly of the fine powder separator was not easy.

An object of the present invention is to provide a differential separator that can adjust the particle size of the powder by adjusting the deflection angle of the deflection weight.

With the development of the industry, at the point where the need to separate and supply the same materials according to the granularity is increasing, the powder pulverized in the bowl mill grinder flows into the fine separator through the air at high flow rate. In the differential separator installed separately, it is possible to replace the biasing weight so that the size of the particle can be adjusted and selected as necessary.

The deflection weight is a basic form of the cone shape, which explains in detail the principle of the size of the particle size, while the powder-flowing high velocity air flows through the side of the cone, the fine particles collide with the air side of the cone. The vector amount of the horizontal component becomes large and deviates from the vector direction of the wind.

The separated large particles are recovered, pulverized and separated by a fine powder separator.

Here, the particle size of the derivative can be controlled by varying the size of the cone angle of the deflection weight. The larger the cone size, the greater the horizontal component of the wind vector, and the smaller the particle, the finer the particles are separated from the wind flow. It can be used to obtain fine powder.

There is also a method of attaching a plurality of blade pieces to the surface of the deflection weight, the particle size can be adjusted according to the blade angle and the number of blade pieces.

If the angle of the blade is tilted in the horizontal direction, very fine powder with small particle size can be separated. At this time, the amount of wind powder hits the blade, and the angle of incidence decreases, the reflection angle decreases. The large particles having a deviation from the flow of the wind can be adjusted to the particle size so that only the very fine powder is carried in the wind.

As a method of separating the fine particle size by the number of blade pieces, the more the number of blade pieces is collided between the fine particles and the blade pieces in the deflection weight with spiral blades of the same angle, the larger the mass is. As a result, more powder is separated and only a very small particle is carried in the wind and separated.

At this time, the separated particles having a large particle size are recovered and crushed again, so that only particles having a fine particle size can be taken out.

The fine powder separator can be installed in not only the bowl mill grinder but also in other grinders, and is generally used as the primary powder separator, and the final powder separator is often installed separately.

However, when the fine powder is firstly separated using the present invention, the separation efficiency of the second fine powder separator is increased, thereby reducing power and improving production efficiency.

When explaining the embodiment of the present invention in detail by the accompanying drawings as follows.

1 is a cross-sectional view of the fine powder separating apparatus of the present invention, when the raw material is pulverized by the interaction between the polishing roller and the polishing table, the powder is loaded by the wind supplied by the fan, and the fine powder separator 40 is supplied through the cylindrical powder supply pipe 1. ) Into the body (4).

Conical deflection weights (3) are placed on the three or four pedestals (2) attached to the outer surface of the distal end of the powder supply pipe (1), and the deflection weights (3) are crushed and transferred through the powder supply pipe (1). The fine particles collide with the wind, and the relatively large fine particles with a sense of increase strike the sides of the deflection weights (3), causing the horizontal vector to undergo a large motion, which is unaffected by the wind vector. As it falls, it is fed back to the grinder through a recovery pipe 7 connected to the bottom of the trumpet-shaped collection pipe 6 to be crushed.

In addition, the particles hit by the deflection weight, but the momentum is again carried by the wind is moved to the differential outlet 8 along the passage located in the upper center of the body.

The raw materials pulverized by such a process are primarily separated into fine powder and coarse powder having a large particle size, and the fine powder is moved to the next process, and the crude powder is recovered and crushed again.

Replacement of the deflection weight (3) was to open the door (5, door) installed in the body (4) of the differential separator 40 to be easily replaced.

As shown in FIG. 2, the deflection weights 3 may have the same basic circumference but different cone angles. The deflection weights having a large cone angle (a) are separated into finer particles having a smaller particle size than (b). (C) has a larger particle size than (B).

3 is a spiral attachment of a plurality of blade pieces 9 on the side surfaces of the deflection weights 3, and the number of differentials carried by the wind is higher than that of the simple cone-shaped deflection weights in FIG. It can be used to extract finer grains of finer particle size because of its slow speed.

In addition, the angular size of the blade 9 is equal to (a)> (b)> (c), and thus the average size of the differential particle sizes separated is (a) <(b) <(c).

4 is an embodiment in which the blade angles of the blade pieces are the same on the side surface of the deflection weight 3, but the number of blade pieces 9 is differently attached. The number of blade pieces is (a) <(b) <(c) in this order. The average size of the fine particles to be separated becomes (A)> (B)> (C).

5 is the overall configuration of the ball mill, the raw material supply container 10 for supplying the raw material, the feed table 20 for supplying the amount of the raw material at a constant speed, the grinder 30 for grinding the raw material, the pulverized particles Finely divided separator 40 for separating primarily, micron 10 for separating the firstly separated fine powder, filtration device 60 for filtering and collecting only the material pulverized from the wind, product collection for collecting and supplying the workpiece The structure of the pain relief 70, the exhaust pipe 80 which discharges wind, etc. is shown.

The fine powder separator of the present invention can be easily replaced by the deflection weight (3) according to the purpose of use of the powder to obtain the powder of the desired particle size, and can be used in other grinders because the separate installation is easy.

Claims (2)

Supplying the pulverized powder carried in the wind and one end is inserted into the fine powder separator body (4) to form a cylindrical powder supply pipe (1), the lower part of the body (4) recovery pipe for collecting the large particle powder (6) In the pulverizer having a trumpet-shaped differential outlet 8 formed on the upper part of the body 4, a plurality of pedestals 2 are attached to the upper part of the powder supply pipe 1, and the deflection determines the particle size of the powder. Forming a deflection weight so as to have an angle, and fine powder separation apparatus for a grinder, characterized in that to adjust the particle size of the powder by assembling the deflection weight (3) on the pedestal (2). The finely divided device for a grinder according to claim 1, wherein a spiral blade (9) is attached to the conical surface of the deflection weight (3) at regular intervals.