CN218687336U - Pulse dust collector - Google Patents

Abstract

The utility model discloses a pulse dust collector, which comprises a dust collector body. A plurality of tubular filter bags are horizontally installed in the inner cavity of the dust collector body. A round opening is opened on the side wall, and a branch pipe is installed at the position of the round mouth. The branch pipe on one side is connected in parallel to the same pulse pipe, and the branch pipe on the other side is connected in parallel to the same exhaust pipe. The pulse pipe is connected in series with a pulse air pump. In normal use, the airtight valve of the pulse tube is closed, the airtight valve corresponding to the exhaust pipe is opened, filtered through the side wall of the filter bag, and discharged through the exhaust pipe, and the anti-air pressure impact is to close the airtight valve corresponding to the exhaust pipe. Open the airtight valve of the pulse tube, and impact the filter bag through the reaction of the pulse air pump, so that the dust absorbed by the filter bag will fall, and at the same time ensure the smoothness of the pores of the filter bag.

Description

A pulse dust collector

technical field

The utility model belongs to the technical field of industrial waste gas treatment equipment, in particular to a pulse dust collector.

Background technique

The pulse dust collector is when the dusty gas enters the dust collector from the air inlet, and the airflow entering the ash hopper is then folded upwards and passed through the filter bag with a metal skeleton inside. The dust is collected on the outer surface of the filter bag, and the purified gas enters the filter bag. In the cleaning room above the bag room, during the process of purifying the dusty gas through the filter bag, more and more dust is accumulated on the filter bag with the increase of time, increasing the resistance of the filter bag, resulting in a gradual decrease in the processing air volume, which is normal work , to control the resistance within a certain range (140--170 mm water column), once the range is exceeded, the filter bag must be cleaned. When cleaning, the pulse controller sequentially triggers each control valve to open the pulse valve, and the compressed air in the air bag The holes of the injection pipe are sprayed into the corresponding filter bags through the Venturi tube, and the filter bags expand rapidly instantly, so that the dust accumulated on the surface of the filter bags falls off, and the filter bags return to their original state.

There is a layer of clapboard in the bag filter, and there are multiple filter holes arrayed on the clapboard for installing filter bags. The size of the filter bag is generally 500mm in length and 200mm in diameter, forming multiple small filter units. The bottom is connected to the air intake pipe, and the top is connected to the air outlet pipe. The filter bag is cloth or felt made of synthetic fiber, natural fiber or glass fiber, which filters the exhaust gas after coal furnace combustion and traps dust. Due to the high temperature of the exhaust gas after combustion, and the filter bag used for a long time, although the pulse valve reacts with the air pressure to impact the filter bag to improve the filtration efficiency of the filter bag, the filter bag has a certain life and needs to be replaced every once in a while. The efficiency of replacing a filter bag is very low, and it is easy to cause air tightness problems.

Therefore, the utility model is mainly to improve on the basis of the existing bag filter, improve the installation method of the filter bag, and improve the replacement efficiency of the bag while ensuring the air tightness of the installation.

Utility model content

The purpose of the utility model is to provide a pulse dust collector, which is improved on the basis of the existing bag filter, improves the installation method of the filter bag, ensures the air tightness of the installation, and improves the replacement efficiency of the bag.

In order to solve the problems of the technologies described above, the utility model is achieved through the following technical solutions:

A pulse dust collector, comprising a dust collector body, the dust collector body is a cylindrical shell structure;

A plurality of tubular filter bags are installed horizontally in the inner cavity of the dust collector body. Both ends of the filter bags are fixed on the side walls on both sides of the dust collector body. There is a round mouth on the side, and a branch pipe is installed at the position of the round mouth. The branch pipe on one side is connected in parallel to the same pulse pipe, and the branch pipe on the other side is connected in parallel to the same exhaust pipe. The side wall of the dust collector body is connected to the bottom of the filter bag. trachea;

The pulse tube is connected in series with a pulse air pump.

Further, a spring is sleeved inside the filter bag, and ring pieces are fixed on the ends of the springs. The ring piece has a pipe body and a flange. The spring is supported by the ring piece and fixed to the dust collector body correspondingly. The position of the round mouth, the end side of the filter bag is fixed to the corresponding ring piece.

Further, the side wall of the filter bag is corrugated.

Further, a card slot is installed at the position corresponding to the circular opening on the inner side wall of the dust collector body. The card slot is an arc-shaped card slot with an upper side opening, and the flange corresponding to the ring member is locked into the card slot from top to bottom. to install.

Further, the bottom of the dust collector body is an ash hopper, and the ash hopper is funnel-shaped, and has an ash discharge port at the bottom, which is sealed by a sealing cover.

Further, the part of the air intake pipe extending into the dust collector body is a wedge-shaped opening, and the corresponding wedge-shaped opening of the air intake pipe faces upward.

The utility model has the following beneficial effects: in the normal use state, the airtight valve of the pulse pipe is closed, the airtight valve corresponding to the exhaust pipe is opened, and the smoke and dust gas enters through the intake pipe, and then is filtered through the side wall of the filter bag, and the dust particles are The side wall of the filter bag is intercepted, and the clean air passes through the filter bag and is discharged through the exhaust pipe. The anti-pressure shock effect is to close the air-tight valve corresponding to the exhaust pipe, open the air-tight valve of the pulse tube, and filter through the pulse air pump. bag, so that the dust absorbed by the filter bag falls off, while ensuring the smoothness of the pores of the filter bag.

Description of drawings

In order to illustrate the technical solutions of the embodiments of the present invention more clearly, the following will briefly introduce the drawings required for describing the embodiments.

Figure 1: Structural schematic diagram of the utility model.

Fig. 2: Schematic diagram of partial dismantling structure of the filter bag of the present utility model.

Figure 3: Schematic diagram of the partial installation structure of the filter bag of the present utility model.

In the attached drawings, the list of parts represented by each label is as follows: dust collector body 1, filter bag 2, branch pipe 11, pulse pipe 4, exhaust pipe 5, air intake pipe 12, pulse air pump 41, spring 3, ring piece 31, clamp Groove 13, ash hopper 14, sealing cover 15.

Detailed ways

The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them. example.

As shown in Figure 1-3: a pulse dust collector, including a dust collector body 1, the dust collector body 1 is a cylindrical shell structure; the upper side is a dome, and the dome can be connected to the upper opening side of the dust collector body Disassembly and installation.

A plurality of tubular filter bags 2 are installed horizontally in the inner cavity of the dust collector body 1. It is connected to the round mouth on the opening side of each filter bag 2. A branch pipe 11 is installed at the position of the round mouth. One side branch pipe 11 is connected in parallel to the same pulse pipe 4, and the other side branch pipe 11 is connected in parallel to the same exhaust pipe 5. The dust collector The side wall of the main body 1 is connected to the bottom of the filter bag 2 with an air intake pipe 12;

The pulse tube 4 is connected with a pulse air pump 41 in series.

Both the pulse tube and the exhaust pipe are connected in series with an airtight valve. Under normal use, the airtight valve of the pulse tube is closed, and the airtight valve corresponding to the exhaust pipe is opened, and the smoke enters through the intake pipe, and then passes through the side wall of the filter bag. After filtering, the dust particles are intercepted on the side wall of the filter bag, and the clean air passes through the filter bag and is discharged through the exhaust pipe. The anti-pressure impact is to close the airtight valve corresponding to the exhaust pipe and open the airtight valve of the pulse tube. The filter bag is impacted by the pulse air pump reaction, so that the dust absorbed by the filter bag falls off, and at the same time, the air hole of the filter bag is guaranteed to be unobstructed.

When replacing the filter bag, open the top cover from the top of the dust collector body and disassemble the filter bag. Since the filter bag is in the shape of a horizontal tube, the number of filter bags is reduced and the filter area is increased. This not only improves the filtration efficiency, but also makes replacement more convenient.

As shown in Figure 2: the inside of the filter bag 2 is sleeved with a spring 3, and the end side of the spring 3 is fixed with a ring 31, and the ring 31 has a pipe body and a flange, and the spring 3 passes through the ring The piece 31 is supported and fixed at the position corresponding to the circular opening of the dust collector body 1, and the end side of the filter bag 2 is fixed to the corresponding ring piece 31. The ring piece and the spring constitute the overall skeleton structure, which is used to support the filter bag. When installing, first compress the spring and the whole filter bag, then align the position of the ring piece and the round mouth, release the compressed spring, and the spring bounces against the dust collector. The side wall of the main body is spontaneously and stably installed, improving installation efficiency and sealing.

The side wall of the filter bag 2 is corrugated. It facilitates compression while increasing the filter area of the filter bag.

The inner wall of the dust collector body 1 is equipped with a card slot 13 at the position corresponding to the round mouth. The card slot 13 is an arc-shaped card slot with an upper side opening, and the flange corresponding to the ring member 31 is inserted into the card from top to bottom. slot 13 for installation. The ring is used to fix the side wall of the dust collector body, and the slot is used for support and sealing.

As shown in FIG. 1 : the bottom of the dust collector body 1 is an ash hopper 14 , which is funnel-shaped and has an ash discharge port at the bottom, which is sealed by a sealing cover 15 .

The part of the air inlet pipe extending into the dust collector body 1 is a wedge-shaped opening, and the corresponding wedge-shaped opening of the air inlet pipe 12 faces upward.

The ash hopper is used to collect the dust dropped by the pulse impact, and it will be treated uniformly after falling into the ash hopper.

This specification selects and specifically describes these embodiments in order to better explain the principle and practical application of the utility model, so that those skilled in the art can well understand and utilize the utility model.

Claims (6)

1. A pulse dust collector is characterized in that:

the dust remover comprises a dust remover body (1), wherein the dust remover body (1) is of a cylindrical shell structure;

the dust remover comprises a dust remover body (1), wherein a plurality of tubular filter bags (2) are horizontally arranged in an inner cavity of the dust remover body (1), two ends of each filter bag (2) are fixed on side walls at two sides of the dust remover body (1), round openings communicated with the opening sides of the filter bags (2) are correspondingly formed in the side walls of the dust remover body (1), branch pipes (11) are arranged at the round openings, the branch pipes (11) at one side are connected in parallel with a same pulse pipe (4), the branch pipes (11) at the other side are connected in parallel with a same exhaust pipe (5), and an air inlet pipe (12) is communicated with the lower part of the side wall of the dust remover body (1) corresponding to the filter bags (2);

the pulse pipe (4) is connected with a pulse air pump (41) in series.

2. A pulse dust collector as defined in claim 1, wherein: filter bag (2) inside spring (3) of having cup jointed, the distolateral all is fixed with loop forming element (31) of spring (3), loop forming element (31) have body and flange, spring (3) support and are fixed in the position that dust remover body (1) corresponds the round mouth through loop forming element (31), filter bag (2) distolateral fixation in corresponding loop forming element (31).

3. A pulse precipitator in accordance with claim 2, wherein: the side wall of the filter bag (2) is corrugated.

4. A pulse dust collector as defined in claim 2 or 3, wherein: draw-in groove (13) are installed to the position that dust remover body (1) inside wall corresponds the round mouth, draw-in groove (13) are upside open-ended arc draw-in groove, the flange that loop forming element (31) correspond is gone into draw-in groove (13) from top to bottom and is installed.

5. A pulse dust collector as defined in claim 1, wherein: the bottom of dust remover body (1) is ash bucket (14), ash bucket (14) are for leaking hopper-shaped, and the bottom has the ash discharge mouth, seals through sealed lid (15).

6. A pulse dust collector as defined in claim 5, wherein: the part of the air inlet pipe extending into the dust remover body (1) is a wedge-shaped opening, and the wedge-shaped opening corresponding to the air inlet pipe (12) faces upwards.

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