CN211864213U - Automatic clearance bag collector - Google Patents

Abstract

The utility model discloses an automatic cleaning bag type dust collector, which comprises an upper box body, a dust removal box body and a dust collecting hopper. An air inlet pipe is arranged in the inner cavity of the upper box body, and the air inlet end of the air inlet pipe extends out of a Outside the above box body, the air inlet end of the air inlet pipe is communicated with the compressed air bag, a pulse valve is arranged on the air passage connecting the air inlet pipe and the compressed air bag, and the inner cavity of the dust removal box is equidistantly distributed. There are several filter bags, the upper end of the filter bags is installed on the partition plate, the air intake pipe is connected with several air nozzles, the air nozzles are arranged above the filter bags, and the filter bags are arranged inside the filter bags. There is a filter bag dedusting device, the dust hopper is provided with a dust hopper dedusting device, one end of the differential pressure transmitter is communicated with the upper box body, and the other end is communicated with the dedusting box body. The beneficial effect of the utility model is that the bag-type dust collector can be automatically cleaned, and the cleaning effect is good.

Description

An automatic cleaning bag filter

technical field

The utility model relates to the technical field of dust removal equipment, in particular to an automatic cleaning bag type dust collector.

Background technique

A bag filter is a dry dust filter. It is suitable for capturing fine, dry, non-fibrous dust. The filter bag is made of woven filter cloth or non-woven felt, and the dust-containing gas is filtered by the filtering effect of the fiber fabric. The action settles down and falls into the ash hopper. When the gas containing finer dust passes through the filter material, the dust is blocked and the gas is purified. In the existing bag filter, the filter bag is the core component of the bag filter. As the filter time of the filter bag is prolonged, the thickness of the accumulated dust on the filter bag is too thick, which seriously affects the use of the filter bag and reduces the Therefore, the filter bag should be cleaned regularly.

The existing process of cleaning the surface of the filter bag needs to open the dust removal box of the dust collector, then take the filter bag out of the dust removal box, and manually clean the filter bag, or use the method of mechanical vibration to remove dust. These two methods The dust removal effect of the filter bag is not ideal, so it is necessary to design a bag filter that can automatically clean the filter bag.

Utility model content

The purpose of this utility model is to solve the above problems, and design an automatic cleaning bag type dust collector.

To achieve the above purpose, the technical solution of the present invention is that an automatic cleaning bag filter includes an upper box, a dust box, and a dust hopper, and a partition is arranged between the upper box and the dust box. The inner cavity of the upper box body is provided with an air intake pipe, the intake end of the air intake pipe extends out of the upper box body, the intake end of the air intake pipe is communicated with the compressed air bag, and the intake pipe is connected to the A pulse valve is arranged on the air passage connected with the compressed air bag, and several filter bags are equally spaced in the inner cavity of the dust removal box. There are several air nozzles, the air nozzles are arranged above the filter bag, the filter bag is provided with a filter bag dust removal device, the dust hopper is provided with a dust hopper dust removal device, and one end of the differential pressure transmitter is installed. It is communicated with the upper box body, and the other end is communicated with the dust removal box body.

Further, the filter bag dust removal device includes a dust removal brush, a brush seat, and a dust removal shaft, the brush seat is fixedly connected to the dust removal shaft, the dust removal brush is fixedly connected to the brush seat, and the dust removal shaft is connected to the dust removal shaft. The motors are connected to one phase, the motors are fixed on the partition plate, and a handle is installed at the bottom of the dust hopper.

Further, the filter bag is provided with at least three brush holders and the dust removal brush is provided with at least three groups.

Further, the dust hopper dust removal device includes a dust removal scraper, a spring and a slideway, one end of the slideway is provided with a dust removal scraper, and one end of the dust removal scraper is provided with a spring.

Further, a dust gas inlet is arranged at the bottom of the dust removal box, and a clean gas outlet is arranged on one side of the upper box.

Further, one end of the dust gas inlet is connected with a blower.

Further, the dust collecting hopper is connected with the screw propeller, and the screw propeller is connected with the motor in two phases.

Further, a filter screen is arranged between the dust removal box and the dust collecting hopper.

Further, the dust collecting hopper is arranged in a conical shape, and a valve is installed at the outlet of the dust collecting hopper.

An automatic cleaning bag type dust collector made by using the technical scheme of the utility model has the following beneficial effects:

1. The differential pressure transmitter collects the real-time total pressure difference before and after dust removal of the bag filter in real time. When the real-time total pressure difference is greater than the upper limit of the pressure difference, the dust removal starts until the real-time total pressure difference reaches the lower limit of the pressure difference. , stop dust removal and realize automatic cleaning;

2. There is a filter screen between the dust removal box and the dust hopper, which can filter the dust-containing gas sent in from the outside to a certain extent. The dust with larger particles is initially filtered, and the dust removal effect is good. At the same time, the replacement of filter bags is reduced. frequency;

3. Set up a filter bag dust removal device, which can clean the inside of the filter bag more deeply while performing pulse injection;

4. The dust collecting hopper is provided with a dust collecting hopper dust removal device, and the dust collecting hopper can be cleaned by the cooperation of the dust collecting scraper, the spring and the handle.

Description of drawings

Fig. 1 is the structural representation of a kind of automatic cleaning bag filter according to the present utility model;

2 is a schematic structural diagram of a dust hopper dust removal device for an automatic cleaning bag type dust collector according to the present invention;

In the figure, 1. Upper box; 2. Dust removal box; 3. Dust hopper; 4. Partition; 5. Intake pipe; 6. Compressed air bag; 7. Pulse valve; 8. Filter bag; 9. Filter Bag dust removal device; 91, dust removal brush; 92, brush seat; 93, dust removal shaft; 94, motor one; 10, dust collector dust removal device; 101, dust removal scraper; 102, spring; 103, slideway; 11, dust Air inlet; 12, clean air outlet; 13, blower; 14, screw propeller; 15, motor two; 16, filter screen; 17, air nozzle; 18, valve; 19, handle; 20, differential pressure transmitter.

Detailed ways

The present utility model will be described in detail below with reference to the accompanying drawings. As shown in Figures 1-2, an automatic cleaning bag filter includes an upper box body 1, a dust removal box body 2, a dust collecting hopper 3, and one end of the pressure difference device 11 is connected to The upper box body 1 is communicated with, and the other end is communicated with the dust removal box body 2 . A dust gas inlet 11 is provided at the bottom of the dust removal box 2, a clean gas outlet 12 is provided on one side of the upper box 1, and a blower 13 is connected to one end of the dust gas inlet 11. The inner cavity of the dust removal box 2 There are several filter bags 8 equally spaced. According to the pressure difference between the upper box 1 and the dust removal box 2, the upper limit of the pressure difference that needs to be removed and the lower limit of the pressure difference that needs to be stopped are set. The real-time total pressure difference, when the real-time total pressure difference is greater than the upper limit of the pressure difference, starts to remove dust, and the blower 13 passes the dust-containing gas into the dust-removing box 2 to carry out the dust-removing process. After the dust-containing gas enters the bag filter, the particles are large. The dust with a large specific gravity settles down due to the action of gravity and falls into the dust collecting hopper 3. When the gas containing the finer dust passes through the filter bag 8, the dust is blocked, so that the gas is purified. Outlet 12 discharges. The above operations can be repeated until the real-time total pressure difference reaches the lower limit value of the pressure difference, and the dust removal is stopped.

A filter screen 16 is arranged between the dust removal box 2 and the dust collecting hopper 3 . The filter screen 16 is provided for filtering, which can filter the dust-containing gas sent in from the outside to a certain extent.

A partition 4 is arranged between the upper box body 1 and the dust removal box body 2, an air inlet pipe 5 is arranged in the inner cavity of the upper box body 1, and the air inlet end of the air inlet pipe 5 extends out of the upper box. Outside the body 1, the air inlet end of the air inlet pipe 5 is communicated with the compressed air bag 6, and a pulse valve 7 is provided on the air passage connecting the air inlet pipe 5 and the compressed air bag 6. There are several filter bags 8 equally spaced in the cavity, the upper end of the filter bags 8 is mounted on the partition plate 4, the air inlet pipe 5 is connected with several air nozzles 17, and the air nozzles 17 are arranged on the Above the filter bag 8, a filter bag dust removal device 9 is arranged in the filter bag 8. The filter bag dust removal device 9 includes a dust removal brush 91, a brush seat 92, and a dust removal shaft 93, and the brush seat 92 is fixedly connected to the dust removal device. On the shaft 93 , the dust-removing brush 91 is fixedly connected to the brush holder 92 , the dust-removing shaft 93 is connected to the first motor 94 , and the first motor 94 is fixed to the partition plate 4 . With the extension of the filtering time, the accumulated thickness of the dust on the filter bag 8 is too thick. At this time, the pulse valve 7 is opened, and the gas in the compressed air bag 6 enters the upper box 1 through the air inlet pipe 5, and then the air is injected. The nozzle 17 is aligned with the filter bag 8, and the dust is cleaned by pulse blowing. The material of the compressed air bag 6 is stainless steel, which is beneficial to ensure the cleanliness of the compressed air. The seat 92 and the dust removal brush 91 rotate accordingly, and the dust removal brush 91 scrapes the dust on the filter bag 8 to achieve the dust removal effect.

There are at least three filter bags, and at least three sets of the brush holder 92 and the dust removal brush 91 are provided. Multiple sets of filter bags 8 and corresponding multiple sets of dust removal brushes 92 and brush holders 92 are provided, so that the dust removal effect is better and the dust removal rate is faster.

The dust hopper 3 is provided with a dust hopper dust removal device 10, the dust hopper dust removal device 10 includes a dust removal scraper 101, a spring 102 and a slideway 103, and one end of the slideway 103 is provided with a dust removal scraper Plate 101, a spring 102 is installed at one end of the dust removal scraper 101, a handle 19 is installed at the bottom of the dust collecting bucket 3, and the handle 19 is connected with the dust removal blade 101 by elastic thin wires. The dust hopper dust removal device 10 is arranged on the inner side wall of the dust hopper 3, and is provided with several groups. The operator pulls the handle 19, so that the handle 19 drives the dust scraper 101 inside the slideway 103 to carry out the dust removal along the side wall of the dust hopper. During the movement, the dust on the inner wall of the dust collecting hopper 3 is cleaned, and the spring 102 can be used to stop pulling the handle 19, and the spring 102 can contract when no force is applied, so that the dust removal scraper 101 can return to the original position.

One end of the dust inlet 11 is connected with a blower 13 . The blower 13 can be adjusted to achieve multi-angle air supply.

The dust collecting hopper 3 is connected with the screw propeller 14 , and the screw propeller 14 is connected with the second motor 15 . After the dust falls into the dust collecting hopper 3 , the valve 18 is opened, and the dust falls into the screw propeller 14 , and the screw propeller 14 is driven by the second motor 15 to send the dust out of the bag filter.

The above technical solutions only reflect the preferred technical solutions of the technical solutions of the present invention, and some changes that those skilled in the art may make to some parts of them all reflect the principles of the present invention and belong to the protection scope of the present invention. within.

Claims (9)

1. An automatic cleaning bag filter, comprising an upper box (1), a dust box (2), and a dust hopper (3), characterized in that the upper box (1) and the dust box A partition (4) is arranged between the bodies (2), an air inlet pipe (5) is arranged in the inner cavity of the upper case body (1), and the air inlet end of the air inlet pipe (5) extends out of the upper case body (1) Outside, the air inlet end of the air inlet pipe (5) is communicated with the compressed air bag (6), and a pulse valve ( 7), the inner cavity of the dust removal box (2) is equidistantly distributed with several filter bags (8), the upper ends of the filter bags (8) are mounted on the partition plate (4), and the air intake pipe (5) A number of air nozzles (17) are connected to it, and the air nozzles (17) are arranged above the filter bag (8), and a filter bag dust removal device (9) is arranged in the filter bag (8), The dust collecting hopper (3) is provided with a dust collecting hopper dust removal device (10), one end of the differential pressure transmitter (20) is communicated with the upper box (1), and the other end is connected with the dust removal box (2). connected. 2. An automatic cleaning bag filter according to claim 1, characterized in that, the filter bag dust removal device (9) comprises a dust removal brush (91), a brush seat (92), and a dust removal shaft (93), The brush holder (92) is fixedly connected to the dust removal shaft (93), the dust removal brush (91) is fixedly connected to the brush holder (92), and the dust removal shaft (93) is connected to the first motor (94). ) are connected, and the first motor (94) is fixed on the partition plate (4). 3. An automatic cleaning bag filter according to claim 2, characterized in that, the filter bags (8) are provided with at least three, the brush holder (92) and the dust removal brush (91) There are at least three sets. 4. An automatic cleaning bag filter according to claim 1, wherein the dust hopper dust removal device (10) comprises a dust scraper (101), a spring (102) and a slideway (103) One end inside the slideway (103) is provided with a dust removal scraper (101), one end of the dust removal scraper (101) is provided with a spring (102), and the bottom of the dust collecting bucket (3) is provided with a handle (19) ). 5. An automatic cleaning bag filter according to claim 1, characterized in that, a dust inlet (11) is provided at the bottom of the dust removal box (2), and a side of the upper box (1) is provided with a dust inlet (11). A clean air outlet (12) is provided. 6 . The automatic cleaning bag filter according to claim 5 , wherein a blower ( 13 ) is connected to one end of the dust gas inlet ( 11 ). 7 . 7 . The automatic cleaning bag filter according to claim 1 , wherein the dust collecting hopper ( 3 ) is connected with a screw propeller ( 14 ), and the screw propeller ( 14 ) is connected with a motor. 8 . Two (15) are connected. 8 . The automatic cleaning bag filter according to claim 1 , wherein a filter screen ( 16 ) is arranged between the dust box ( 2 ) and the dust hopper ( 3 ). 9 . 9. An automatic cleaning bag filter according to claim 1, characterized in that the dust collecting hopper (3) is arranged in a conical shape, and a valve (18) is installed at the outlet of the dust collecting hopper (3) .

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