CN212141810U - Conductive bag-type dust collector - Google Patents

Abstract

The utility model discloses a conductive cloth bag dust collector, comprising a dust removal box, an air inlet and an air outlet are arranged on the dust removal box, the dust removal box includes a plurality of clean air chambers, and the top of the clean air chamber is provided with Current and pulse valve controller, the clean air chamber is provided with a knitted felt filter bag, the lower end of the clean air chamber is provided with a rotary valve, the inside of the knitted felt filter bag is provided with conductive fibers, and the conductive fibers pass through the dust removal box body It is connected with the earth through wires; the current and pulse valve controller includes a pulse valve and a blowing pipe, the pulse valve is arranged on the blowing pipe to control the blowing frequency of compressed air; the dust box is fixedly connected with a clean air chamber Connected conical ash hopper, the lower end of the conical ash hopper is provided with an ash unloader, and the outlet of the ash unloader is provided with a mobile ash slag box. The utility model has outstanding treatment capacity for some waste gas containing charged dust.

Description

A conductive bag filter

technical field

The utility model relates to a dust removal device of a waste gas treatment system, in particular to a conductive cloth bag dust collector.

Background technique

A dust collector is a device that separates dust from flue gas, called a dust collector or dust removal device. The performance of the dust collector is expressed in terms of the amount of gas that can be handled, the resistance loss when the gas passes through the dust collector, and the dust removal efficiency. At the same time, the price, operation and maintenance costs, service life and difficulty of operation and management of the dust collector are also important factors to consider its performance.

The bag filter is a kind of equipment to deal with the dust-containing pollutants in the gas discharge. It can effectively reduce the discharge of dust particles in the gas, and is widely used in many industries. The working mechanism of the bag filter is that the dust-laden gas passes through the filter material, and the dust particles are filtered. Layers also have a certain filtering effect.

The Chinese Patent Publication No. CN102784526A discloses a bag filter, comprising: a box body with a purified gas outlet; a plurality of dust removal bags arranged in the box body; an ash hopper arranged at the bottom of the box body, which has dust-containing gas The inlet; also includes a partition that is arranged in the box and divides the box space into at least two mutually isolated dust removal areas, each dust removal area is communicated with the ash hopper through an on-off valve, and the bottom of the ash hopper is provided with an ash discharge In this dust collector, multiple dust removal bags are separated, which is not conducive to the circular injection of dust between different dust removal bags, and this type of dust collector only uses the adsorption effect of dust removal bags. For some exhaust gases containing charged dust, such as Graphite-containing waste gas has limited treatment capacity.

SUMMARY OF THE INVENTION

The purpose of the present utility model is to provide a conductive bag filter to solve the problems raised in the above background technology.

To achieve the above object, the utility model provides the following technical solutions:

A conductive bag filter includes a dust box, an air inlet and an air outlet are arranged on the dust box, the dust box includes a plurality of clean air chambers, and the top of the clean air chamber is provided with a current and pulse valve controller, The clean air chamber is provided with a knitted felt filter bag, the lower end of the clean air chamber is provided with a rotary valve, the inside of the knitted felt filter bag is provided with conductive fibers, and the conductive fibers are electrically connected to the earth through the dust removal box; the The current and pulse valve controller includes a pulse valve and a blowing pipe. The pulse valve is arranged on the blowing pipe to control the blowing frequency of the compressed air; The lower end of the cone-shaped ash hopper is provided with an ash unloader, and the outlet of the ash unloader is provided with a mobile ash slag box.

As a further solution of the present invention, each clean air chamber is provided with a plurality of knitted felt filter bags, every two clean air chambers are connected with a conical ash hopper, the plurality of clean air chambers are communicated, and the single Blowing can be circulated between the clean air chambers.

As a further solution of the present invention, the air pressure in the clean air chamber is 0.4-0.6 MPa.

As a further solution of the present invention, the air inlet is provided with a dust collecting hood and an air collecting duct, and both ends of the air collecting duct are respectively connected with the dust collecting hood and the air inlet.

As a further solution of the present invention, the air outlet is provided with a centrifugal fan.

As a further solution of the present invention, a visual window is provided on the conical ash hopper.

As a further solution of the present invention, the dust box is fixed on a support frame, and the support frame is welded by steel pipes.

Compared with the prior art, the beneficial effects of the present utility model are:

In the utility model, a dust collecting hood is installed at the discharge port of the pollution source, and the exhaust gas containing the charged graphite dust is transported to the air inlet of the dust removal device through the air collecting pipe. The dust adheres to the outside of the filter bag and is intercepted. At the same time, there are conductive fibers inside the filter bag. The conductive fibers are electrically connected to the ground through the dust removal box. The charged conductive wire fibers make the adsorbed graphite dust charged, making it easier to adsorb more The graphite-containing dust is periodically sprayed by the current and pulse valve controller, causing the filter bag to open periodically, and the graphite dust adhering to the surface of the filter bag is loosened and falls into the lower ash hopper by gravity. Start the ash unloader at the bottom of the ash hopper, the collected graphite dust is discharged from the mobile ash box, and the purified air is discharged from the air outlet through the centrifuge.

In the utility model, each clean air chamber is provided with a plurality of knitted felt filter bags, every two clean air chambers are connected with a conical ash hopper, the plurality of clean air chambers are communicated, and the single clean air chamber It can be circulated and sprayed between, which is conducive to the adsorption of dust on different filter bags.

In the utility model, the conical ash hopper is provided with a visual window, which can observe the accumulation of dust in the ash hopper and realize regular ash cleaning.

The utility model periodically sprays and cleans the ash through the pulse valve, so as to ensure that the dust peeled off the filter bag after the blowing settles to the ash hopper, and avoids the dust from being separated from the surface of the filter bag and then attached to the surface of the adjacent filter bag with the airflow. phenomenon, and the ability to treat some exhaust gases containing conductive substances is outstanding.

Description of drawings

In order to illustrate the technical solutions of the embodiments of the present invention more clearly, the following briefly introduces the accompanying drawings that need to be used in the description of the embodiments or the prior art. Obviously, the drawings in the following description are only for the present invention. For some embodiments of the present invention, for those of ordinary skill in the art, other drawings can also be obtained from these drawings without any creative effort.

Figure 1 is a schematic structural diagram of the utility model.

Figure 2 is a schematic diagram of dust adhesion in the clean air chamber.

Figure 3 is a schematic diagram of dust separation in the clean air chamber.

In the figure, 1- air inlet, 2- air outlet, 3- knitted felt filter bag, 4- blowing pipe, 5- dust box, 6- pulse valve, 7- cone-shaped ash hopper, 8- visual window, 9- Support frame, 10- ash unloader, 11- rotary valve, 12- clean air chamber.

Detailed ways

The technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the implementations. example. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative work fall within the protection scope of the present invention.

Example 1

As shown in FIG. 1 , a conductive bag filter includes a dust box 5 , which is provided with an air inlet 1 and an air outlet 2 , and the dust box 5 includes a plurality of clean air chambers 12 . The top of the air chamber 12 is provided with a current and pulse valve controller, the clean air chamber is provided with a knitted felt filter bag 3, the lower end of the clean air chamber 12 is provided with a rotary valve 11, and the inside of the knitted felt filter bag 3 is provided with a Conductive fibers, the conductive fibers are electrically connected to the earth through the dust removal box body; the pulse controller includes a pulse valve 6 and a blowing pipe 4, and the pulse valve 6 is arranged on the blowing pipe 4 to control the blowing frequency of the compressed air; The dust removal box 5 is fixedly connected with a conical ash hopper 7 which communicates with the clean air chamber 12 . The conical ash hopper 7 is provided with an ash unloader 10 at the lower end, and the outlet of the ash unloader 10 is provided with a mobile ash slag box.

Further, each clean air chamber 12 is provided with a plurality of knitted felt filter bags 3, each two clean air chambers 12 is connected to a conical ash hopper 7, and the plurality of clean air chambers 12 communicate with each other. The clean air chambers 12 can be sprayed cyclically, and the air pressure in the clean air chamber is 0.4-0.6 MPa.

Further, the air inlet 1 is provided with a dust collecting hood and an air collecting duct, and the two ends of the air collecting duct are respectively connected with the dust collecting hood and the air inlet. The pipe is transported to the entrance of the dust removal equipment. The dust collection hood and the air collecting pipe are made of galvanized material.

Further, the conical ash hopper is provided with a visual window 8, which can observe the accumulation of dust in the ash hopper and realize regular ash cleaning.

Further, the dust box 5 is fixed on a support frame 9, and the support frame 9 is welded by steel pipes.

As shown in Fig. 2 and Fig. 3, the back end of the dust box 5 is provided with the conveying air force provided by the induced draft fan, the exhaust gas is inhaled by the air inlet 1, and the dust adheres to the outer surface of the knitted felt filter bag 3 and is intercepted. Fibers and conductive fibers are electrically connected to the ground through the dust removal box. The charged conductive wire fibers make the adsorbed graphite dust charged, making it easier to absorb more charged graphite dust. Periodically open, the graphite dust adhering to the surface of the knitted felt filter bag 3 is loosened, and falls into the lower ash hopper by gravity, and the ash unloader 10 at the bottom of the ash hopper is started regularly, and the collected graphite dust is discharged into the mobile ash hopper. The slag box, the purified air is discharged from the air outlet 2 through the centrifuge.

The above embodiments are only used to illustrate the technical solutions of the present invention, but not to limit them; although the present invention has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that: it can still be used for the foregoing implementations. The technical solutions described in the examples are modified, or some technical features thereof are equivalently replaced; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims (7)

1. A conductive bag-type dust collector is characterized by comprising a dust collection box, wherein an air inlet and an air outlet are formed in the dust collection box, the dust collection box comprises a plurality of air purification chambers, a current and pulse valve controller is arranged at the top ends of the air purification chambers, a knitted felt filter bag is arranged in each air purification chamber, a rotary valve is arranged at the lower end of each air purification chamber, conductive fibers are arranged in the knitted felt filter bag, and the conductive fibers are electrically connected with the ground through a box body of the dust collection box; the current and pulse valve controller comprises a pulse valve and an injection tube, wherein the pulse valve is arranged on the injection tube and used for controlling the injection frequency of compressed air; the dust removal case fixedly connected with and the taper ash bucket of air-purifying chamber intercommunication, the taper ash bucket lower extreme is equipped with the ash unloader, the ash unloader export is equipped with portable ash sediment case.

2. The electrically-conductive bag-type dust collector as claimed in claim 1, wherein a plurality of knitted felt filter bags are arranged in each air-purifying chamber, each two air-purifying chambers are connected with a conical dust hopper, the air-purifying chambers are communicated with each other, and the air-purifying chambers can be blown and blown circularly.

3. The conductive bag-type dust collector of claim 2, wherein the air pressure in the air-purifying chamber is 0.4-0.6 MPa.

4. The electrically-conductive bag-type dust collector of claim 1, wherein the air inlet is provided with a dust collection hood and an air collection pipe, and two ends of the air collection pipe are respectively connected with the dust collection hood and the air inlet.

5. The electrically conductive bag-type dust collector of claim 1, wherein the air outlet is provided with a centrifugal fan.

6. The electrically conductive bag-type dust collector as claimed in claim 1, wherein a visible window is provided on the cone-shaped dust hopper.

7. The electrically conductive bag dust collector of claim 1, wherein said dust box is fixed to a support frame, said support frame being welded together by steel pipes.

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