Anti-blocking device for materials at inlet of powder concentrator

Abstract

The utility model discloses an anti-blocking device for materials at an inlet of a powder concentrator. The anti-blocking device comprises a feed chute, a hot air conveying chute and a compressed air inlet, the feeding groove is connected with the hot air conveying groove, and the hot air conveying groove is used for conveying hot air; a compressed air inlet is formed in the feeding groove, the compressed air inlet is communicated with the feeding groove, and the compressed air inlet is used for conveying compressed air to the feeding groove. By means of the anti-blocking device, materials in the feeding groove are not prone to blocking, the probability that production is affected due to the fact that the materials block the feeding groove is reduced, production efficiency and the operation rate of equipment are improved, and meanwhile labor intensity of workers can be reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of powder classifiers, in particular to an anti-blocking device for materials at an inlet of a powder classifier. Background Art

[0002] A feeder is installed on the upper part of the powder classifier. The feeder feeds the material into the inlet of the powder classifier, that is, the feed trough on the powder classifier. The material enters the powder classifier shell through the feed trough, passes through the space between the powder classifier shell and the guide blade, and finally feeds into the vertical mill disc, which grinds the material. Through the powder selection of the powder classifier, qualified fine powder goes out from the discharge port of the upper shell of the powder classifier, and unqualified coarse powder goes through the coarse powder discharge pipe of the powder classifier and then goes to the vertical mill disc for re-grinding.

[0003] The humidity of the materials at the powder selector entrance varies greatly due to different seasons and regions. If the humidity of the materials is high, the materials will block the feed chute, resulting in poor material discharge from the feed chute, partial blockage, and fluctuating material discharge volume, which seriously affects the stability of the grinding disc of the vertical mill and the operation rate of the equipment, affecting normal production. Once the feed chute is blocked, the machine must be shut down for processing, which affects the operation rate of the powder selector. Increasing the fluidity of the materials is one way to solve the problem of material blockage in the feed chute.

[0004] Therefore, it is very necessary to provide an anti-blocking device for materials at the inlet of the powder classifier to solve the problem of material blocking in the feed trough of the powder classifier. Summary of the invention

[0005] The technical problem to be solved by the utility model is to provide an anti-clogging device for materials at the inlet of a powder classifier in view of the deficiencies of the above-mentioned prior art. The anti-clogging device for materials at the inlet of a powder classifier makes it difficult for materials entering the powder classifier through a feed trough to be blocked, thereby reducing the probability of affecting production due to material blocking the feed trough, and improving production efficiency and equipment operation rate.

[0006] In order to achieve the above technical purpose, the technical solution adopted by the utility model is:

[0007] A device for preventing materials from being blocked at the inlet of a powder selector, comprising a feed trough, a hot air conveying trough and a compressed air inlet;

[0008] The feed trough is connected to a hot air conveying trough, and the hot air conveying trough is used to convey hot air to heat the material in the feed trough;

[0009] The feed trough is provided with a compressed air inlet which is communicated with the feed trough and is used to deliver compressed air to the feed trough.

[0010] As a further improved technical solution of the utility model, the feed trough and the hot air conveying trough are both square troughs formed by welding steel plates.

[0011] As a further improved technical solution of the utility model, the outer surface of the feed trough is fixedly connected to the outer surface of the hot air conveying trough.

[0012] As a further improved technical solution of the utility model, the outer surface of the feed trough is fixedly connected to the outer surface of the hot air conveying trough by welding.

[0013] As a further improved technical solution of the utility model, the hot air delivery trough is connected to a hot air supply device located outside the feed trough.

[0014] As a further improved technical solution of the utility model, there are multiple compressed air inlets, and the multiple compressed air inlets are connected to the feed trough.

[0015] As a further improved technical solution of the utility model, the direction in which the compressed air in the compressed air inlet enters is perpendicular to the direction in which the material in the feed trough moves.

[0016] As a further improved technical solution of the utility model, the compressed air inlet is connected to a compressed air supply device located outside the feed trough.

[0017] The beneficial effects of the utility model are:

[0018] The utility model installs a hot air conveying trough on the feed trough of a powder classifier. The hot air conveyed in the hot air conveying trough has a heating function for the material conveyed in the feed trough, so that the material with high humidity is dried by heating with hot air. The dried material is easy to flow, and the inlet material will not block the feed trough. If the inlet material is dry, the hot air can be stopped.

[0019] The utility model sets a plurality of compressed air inlets on the side of the feed trough of the powder selector. The direction of compressed air entering the compressed air inlet is perpendicular to the moving direction of the material in the feed trough. The compressed air entering the compressed air inlet blows away the material in the feed trough, so that the material in the feed trough is in a loose and non-compacted state, and the fluidity of the material is increased, so that it is not easy to be blocked. If the compressed air inlet and the hot air conveying trough are used at the same time, the compressed air entering the compressed air inlet blows away the material in the feed trough, so that the hot air in the hot air conveying trough can fully heat the dispersed material, so that the material is dry and has better fluidity. When the temperature is high in summer, the compressed air entering the compressed air inlet blows away the material in the feed trough, and the blown away material is fully in contact with the high temperature air in summer, so that the material is dry, and the fluidity of the material is increased. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the structure of the powder selector and the anti-clogging device of the utility model.

[0021] Figure 2 It is a structural schematic diagram of the compressed air inlet in the anti-clogging device of the utility model. DETAILED DESCRIPTION

[0022] The specific implementation of the utility model is further described below according to the accompanying drawings:

[0023] like Figure 1 and Figure 2 As shown, a device for preventing materials from being blocked at the inlet of a powder classifier comprises a feed trough 1 installed on the powder classifier, a hot air conveying trough 2 and a compressed air inlet 3.

[0024] like Figure 1 As shown, the feed trough 1 is connected to the hot air conveying trough 2, and the hot air conveying trough 2 is used to convey hot air. Specifically, the feed trough 1 and the hot air conveying trough 2 are both square troughs welded by steel plates. The outer surface of the feed trough 1 is fixedly connected to the outer surface of the hot air conveying trough 2 by welding. The hot air flow direction in the hot air conveying trough 2 ( Figure 1 The direction of the arrow in the length direction of the hot air conveying trough 2) and the direction of material movement in the feed trough 1 ( Figure 1 The direction of the arrow in the feed trough 1 is the same. The length of the hot air conveying trough 2 is reasonably designed according to the length of the feed trough 1. The length extension direction of the hot air conveying trough 2 is reasonably designed according to the direction of material flow. When hot air is conveyed in the hot air conveying trough 2, the hot air transfers heat to the feed trough 1 through the steel plate, and the material in the feed trough 1 can be heated.

[0025] In this embodiment, the hot air delivery trough 2 is connected to the hot air supply device located outside the feed trough 1 through a pipeline.

[0026] like Figure 2 As shown, the feed trough 1 is provided with a plurality of compressed air inlets 3, which are connected to the feed trough 1, and the compressed air inlets 3 are used to deliver compressed air to the feed trough 1. The number of compressed air inlets 3 is reasonably designed according to the length of the feed trough 1. The direction of the compressed air inlet 3 is reasonably designed according to the direction of material flow.

[0027] In this embodiment, the compressed air inlet 3 enters in a direction perpendicular to the material moving direction in the feed tank 1. The compressed air inlet 3 is connected to a compressed air supply device located outside the feed tank 1 through a pipeline.

[0028] In this embodiment, the hot air supply device includes an air heater, etc., and the compressed air supply device includes an air compressor or a centralized air supply system.

[0029] In this embodiment, Figure 1As shown, the powder selector also includes an upper shell 4, a frame 5, a lower shell 8, a coarse powder discharge pipe 9 and a guide blade assembly 6. The upper shell 4, the frame 5 and the lower shell 8 are fixedly connected in sequence. The guide blade assembly 6 is located inside the lower shell 8 and is bolted to the lower flange of the frame 5. The coarse powder discharge pipe 9 is located below the guide blade assembly 6 and inside the lower shell 8. The coarse powder discharge pipe 9 is connected to the inside of the lower shell 8 through a support pipe 7 by welding. The feed trough 1 is connected to the lower shell 8. The material enters from the feed trough 1, passes through the gap between the lower shell 8 and the guide blade assembly 6, and falls into the vertical mill grinding disc. Through the powder selection of the powder selector, qualified fine powder goes out from the discharge port of the upper shell 4 of the powder selector (the flow direction of fine powder is as shown by the thick arrow in the upper shell 4), and unqualified coarse powder passes through the coarse powder discharge pipe 9 of the powder selector and then re-grinds on the vertical mill grinding disc (the flow direction of coarse powder is as shown by the arrow in the coarse powder discharge pipe 9).

[0030] The utility model installs a hot air conveying trough 2 on a feed trough 1 of a powder classifier. The hot air conveyed in the hot air conveying trough 2 has a heating function for the material conveyed in the feed trough 1, so that the material with high humidity is dried and easy to flow by heating with hot air. The inlet material will not block the feed trough 1. If the inlet material is dry, the hot air can be stopped.

[0031] The utility model sets a plurality of compressed air inlets 3 on the side of the feed trough 1 of the powder selector. The compressed air in the compressed air inlet 3 enters in a direction perpendicular to the moving direction of the material in the feed trough 1. The compressed air entering the compressed air inlet 3 blows away the material in the feed trough 1, so that the material in the feed trough 1 is in a loose and non-hardened state, and the fluidity of the material is increased, so that it is not easy to be blocked. When the compressed air inlet 3 and the hot air conveying trough 2 are used at the same time, the compressed air entering the compressed air inlet 3 blows away the material in the feed trough 1, so that the hot air in the hot air conveying trough 2 can fully heat the dispersed material, so that the material is dry and has better fluidity. When the temperature is high in summer, the compressed air entering the compressed air inlet 3 blows away the material in the feed trough 1, and the blown away material is fully in contact with the high temperature air in summer, so that the material is dry, and the fluidity of the material is increased.

[0032] The protection scope of the present invention includes but is not limited to the above embodiments. The protection scope of the present invention shall be based on the claims. Any replacement, deformation, and improvement of the technology that can be easily thought of by technicians in this field shall fall within the protection scope of the present invention.

Claims

1. A device for preventing materials from being blocked at the inlet of a powder classifier, comprising a feed trough (1) mounted on the powder classifier, characterized in that: It also includes a hot air delivery trough (2) and a compressed air inlet (3); The feed trough (1) is connected to a hot air conveying trough (2), and the hot air conveying trough (2) is used to convey hot air and thus heat the material in the feed trough (1); The feed trough (1) is provided with a compressed air inlet (3), which is in communication with the feed trough (1), and is used to deliver compressed air to the feed trough (1).

2. The anti-blocking device for materials at the inlet of the powder selector according to claim 1 is characterized in that: The feed trough (1) and the hot air conveying trough (2) are both square troughs formed by welding steel plates.

3. The anti-blocking device for materials at the inlet of the powder selector according to claim 1 is characterized in that: The outer surface of the feed trough (1) is fixedly connected to the outer surface of the hot air conveying trough (2).

4. The anti-blocking device for materials at the inlet of the powder selector according to claim 3 is characterized in that: The outer surface of the feed trough (1) and the outer surface of the hot air conveying trough (2) are fixedly connected by welding.

5. The anti-blocking device for materials at the inlet of the powder selector according to claim 1 is characterized in that: The hot air conveying trough (2) is in communication with a hot air supply device located outside the feed trough (1).

6. The anti-blocking device for materials at the inlet of the powder selector according to claim 1 is characterized in that: There are multiple compressed air inlets (3), and the multiple compressed air inlets (3) are connected to the feed trough (1).

7. The anti-blocking device for materials at the inlet of the powder selector according to claim 1 is characterized in that: The compressed air entering the compressed air inlet (3) is perpendicular to the moving direction of the material in the feed trough (1).

8. The anti-blocking device for materials at the inlet of the powder selector according to claim 1 is characterized in that: The compressed air inlet (3) is in communication with a compressed air supply device located outside the feed trough (1).

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