CN218394581U

CN218394581U - Dust removing device of classifying screen

Info

Publication number: CN218394581U
Application number: CN202120366509.3U
Authority: CN
Inventors: 李瑞勇; 李瑞刚
Original assignee: Wuyuan County Jinmai Promotion Technology Co ltd
Current assignee: Wuyuan County Jinmai Promotion Technology Co ltd
Priority date: 2021-02-09
Filing date: 2021-02-09
Publication date: 2023-01-31
Anticipated expiration: 2031-02-09

Abstract

The utility model discloses a dust removing device of a grading sieve, which comprises an airtight air collecting box; a dust collecting port and an air outlet are arranged on the air collecting box; the air outlet is communicated with the air inlet of the dust removal device; a dust removal opening is formed in the sieve bed sealing bottom plate below the feeding and blanking point of the classifying sieve bed; the dust removing port is communicated with the dust collecting port in a sealing way through a ventilation hose. Has the advantages that: simple structure, easy to maintain adopts down to induced draft, will sieve the complete suction of the dust that bed material loading blanking point produced, reduces the dust volume, avoids the dust to pile up in the sieve bed, reduces the sieve bed clearance and maintains the number of times, reduces the operation maintenance cost.

Description

Dust removing device of classifying screen

The technical field is as follows:

the utility model relates to a dust collector especially relates to a classifying screen dust collector.

The background art comprises the following steps:

the vibrating screen is a vibrating screening mechanical device suitable for any particle, powder and mucus, and is a commonly used screening device in food, medicine, chemical and metallurgical industries in China at present.

When the material falls on the feeding and blanking point of the sieve bed in the using process, a large amount of dust can be generated on the sieve surface of the blanking point and in the sieve bed below the blanking point due to the impact force. Traditional classifying screen adopts the upper air suction to remove dust, set up the hole of induced drafting promptly above the sifter bed, siphon away the dust through the negative pressure, but the air inlet that induced drafts on can only follow sifter bed top surface and the hole of induced drafting gets into all around, can only siphon away the partial raise dust of sifter top of blanking point, can't be with the dust negative pressure suction that produces in the sifter bed, can't reach the problem of dust removal effect, the dust that produces in the final sifter bed can be piled up on the sealing bottom plate of sifter bed bottom, the whole weight of sifter bed has been increaseed, sorting equipment's operation energy consumption has been improved, and use cost is increased.

The utility model has the following contents:

in order to solve the problem, the utility model aims to provide a dust removal device is sieved in the classifying screen that reduces the dust volume with the complete suction of the dust that sieve bed material loading blanking point produced.

The utility model discloses by following technical scheme implement: the dust removing device of the grading screen comprises a closed air collecting box; a dust collecting port and an air outlet are arranged on the air collecting box; the air outlet is communicated with the air inlet of the dust removal device; a dust removal opening is formed in the sieve bed sealing bottom plate below the feeding and blanking point of the classifying sieve bed; the dust removal port is communicated with the dust collection port in a sealing mode through a ventilation hose.

Preferably, the dust removal device is any one of a cyclone separator, a bag-type dust remover or a pulse dust remover.

Preferably, a feed hopper is arranged above a feeding and blanking point of a classifying screen bed, and a hopper dust removing opening communicated with the dust collecting opening is formed in the vertical side wall of the feed hopper; and an air adjusting device is arranged on the dust removing port of the hopper.

Preferably, the air adjusting device is a shutter.

Preferably, the air adjusting device comprises a fixed pore plate and a movable pore plate; the hopper dust removal opening is fixedly provided with a fixed pore plate, the fixed pore plate is provided with a movable pore plate in a laminating manner, the fixed pore plate is provided with an adjusting bolt, the movable pore plate is provided with a long strip-shaped adjusting screw hole, and the adjusting bolt is arranged in the adjusting screw hole.

Preferably, an inverted V-shaped distributor is arranged on the inner wall of the feed hopper above the dust removal opening of the feed hopper.

The utility model has the advantages that: simple structure, easy to maintain adopts down to induced draft, will sieve the dust that bed material loading blanking point produced and suck out completely, reduces the dust volume, avoids the dust to pile up in the sieve bed, reduces the sieve bed clearance and maintains the number of times, reduces the operation maintenance cost.

Description of the drawings:

FIG. 1 is a schematic connection diagram of embodiment 1.

FIG. 2 is a schematic connection diagram of embodiment 2.

FIG. 3 is a schematic diagram of example 2.

Fig. 4 is a bottom view of fig. 3.

Fig. 5 is an overall schematic view of the air adjusting device being a feed hopper of a shutter.

FIG. 6 is a schematic view of the feed hopper with a distributor as a whole.

Fig. 7 is a schematic view of the feed hopper with the air adjusting device being a fixed orifice plate and a movable orifice plate.

The specific implementation mode is as follows:

example 1: as shown in fig. 1, the dust removing device of the classifying screen comprises a closed air collecting box 1; the air collecting box 1 is provided with a dust collecting port 2 and an air outlet 3; the air outlet 3 is communicated with an air inlet of a dust removal device 4, the dust removal device 4 is a cyclone separator, and the dust removal device 4 can be any one of a bag-type dust remover or a pulse dust remover; a dust removal opening 7 is formed in a sieve bed sealing bottom plate 6 below a feeding and blanking point of a classifying sieve bed 5; the dust removing opening 7 is hermetically communicated with the dust collecting opening 2 through a ventilation hose 8.

Example 2: as shown in fig. 2 to 4, the classifying screen dust removing apparatus includes a closed air collecting box 1; the air collecting box 1 is provided with a dust collecting port 2 and an air outlet 3; the air outlet 1 is communicated with an air inlet of a dust removal device 4, the dust removal device 4 is a cyclone separator, and the dust removal device 4 can be a bag dust remover or a pulse dust remover; a dust removal opening 7 is formed in a sieve bed sealing bottom plate 6 below a feeding and blanking point of a classifying sieve bed 5; the dust removal port 7 is communicated with the dust collection port 2 in a sealing manner through a ventilation hose 8, a feed hopper 9 is arranged above a feeding and blanking point of the classifying screen bed 5, and as shown in fig. 5, a hopper dust removal port 10 communicated with the dust collection port 2 is arranged on the vertical side wall of the feed hopper 9; an air adjusting device 11 is arranged on the hopper dust removing opening 10, the air adjusting device 11 is a shutter, and the size of the dust removing air volume is adjusted by adjusting the angle of a shutter window; further, as shown in fig. 6, an inverted V-shaped distributor 12 is arranged on the inner wall of the feeding hopper 9 above the hopper dust removal opening 10, and the distributor 12 uniformly distributes the material on the screen surface of the classifying screen bed 5, so as to prevent the material from blocking the hopper dust removal opening 10.

Embodiment 3, a dust removing device of a classifying screen, the whole structure of which is the same as that of embodiment 2, is different in that, as shown in fig. 7, the air adjusting device 11 comprises a fixed orifice plate 13 and a movable orifice plate 14; the fixed orifice plate 13 that becomes the body structure with feeder hopper 9 inner wall that is equipped with of hopper dust removal mouth 10 the laminating is equipped with movable orifice plate 14 on the fixed orifice plate 13 be equipped with adjusting bolt 15 on the fixed orifice plate 13 rectangular shape adjusting screw 16 has been seted up on the movable orifice plate 14, adjusting bolt 15 is arranged in adjusting screw 16, movable orifice plate 14 can carry out the displacement at fixed orifice plate 13 through adjusting screw 16, adjusts the size in space between fixed orifice plate 13 and the movable orifice plate 14 to realize the adjustment and remove dust the amount of wind size.

Claims

1. The dust removing device of the classifying screen is characterized by comprising a closed air collecting box; a dust collecting port and an air outlet are arranged on the air collecting box; the air outlet is communicated with the air inlet of the dust removal device; a dust removal opening is formed in the sieve bed sealing bottom plate below the feeding and blanking point of the classifying sieve bed; the dust removal port is communicated with the dust collection port in a sealing mode through a ventilation hose.

2. The classifying screen dust removing device according to claim 1, wherein the dust removing device is any one of a cyclone separator, a bag-type dust remover, or a pulse dust remover.

3. The classifying screen dust removing device according to any one of claims 1 or 2, wherein a feed hopper is arranged above a feeding and blanking point of a classifying screen bed, and a hopper dust removing opening communicated with the dust collecting opening is arranged on a vertical side wall of the feed hopper; and an air adjusting device is arranged on the dust removing port of the hopper.

4. The classifying screen dust removing device according to claim 3, wherein the air adjusting device is a louver.

5. The classifying screen dust removing device according to claim 3, wherein the air adjusting device comprises a fixed orifice plate and a movable orifice plate; the hopper dust removal opening is fixedly provided with a fixed pore plate, a movable pore plate is attached to the fixed pore plate, an adjusting bolt is arranged on the fixed pore plate, a long strip-shaped adjusting screw hole is formed in the movable pore plate, and the adjusting bolt is arranged in the adjusting screw hole.

6. The classifying screen dust removing device according to claim 4, wherein an inverted V-shaped distributor is provided on the inner wall of the feed hopper above the dust removing opening of the feed hopper.

7. The classifying screen dust removing device according to claim 5, wherein an inverted V-shaped distributor is provided on the inner wall of the feed hopper above the dust removing opening of the feed hopper.