CN209679710U - A pulse bag filter - Google Patents

Abstract

The utility model relates to the field of dust treatment, in particular to a pulse bag filter, which is applied to the treatment of industrial dust. It includes a box body and a plurality of filter bags arranged in the box body. The box body is provided with an inlet, an outlet, and a dust outlet. The dust outlet is provided with a valve. The air outlet of each filter bag is connected to the outlet. The air inlet of the filter bag is connected with the inlet, the box is also provided with a pulse device pointing to the air outlet of the filter bag, the box is provided with a dust cover, and the dust cover includes a detachable set The cylinder on the top of the box and the cover hinged at the lower end of the cylinder, tension springs are arranged between the cover and the cylinder, and a plurality of cylinder inlets are provided on the cylinder, each cylinder inlet A drainage plate is arranged on the inner wall, and the drainage plate is inclined from the outside to the inside and from the top to the bottom, and the lower end of each drainage plate is lower than the lower end of each cylinder inlet. It solves the technical problem that the existing pulse bag filter cannot effectively prevent the dust from flying and the dust settles for a long time.

Description

A pulse bag filter

technical field

The utility model relates to the field of dust treatment, in particular to a pulse bag filter.

Background technique

In the treatment of industrial dust, the pulse bag filter is a kind of equipment commonly used. It belongs to the mechanical shaking type dust collector, which can collect and separate the dust and particles in the air flow. The dust is mainly cleaned by mechanical vibration. It is widely used in the purification of dusty gas and the recovery of dusty materials in food, pharmaceutical, feed, metallurgy, building materials, cement, machinery, chemical, electric power, and light industries.

Chinese patent number: CN201610295041.7 discloses a pulse bag filter, including a box body, a clean air chamber and a filter chamber isolated from each other are arranged inside the box body, and an air inlet pipe and an air outlet pipe are respectively arranged on the two side walls of the box body , the clean air chamber is connected with the air outlet pipe, the filter chamber is connected with the air intake pipe, and an air jet pipe is arranged in the clean air chamber, and one end of the air jet pipe runs through the clean air chamber and extends to the outside of the box, and a pulse valve is installed at the end. There are multiple filter bags in the chamber, one end of the filter bag communicates with the clean air chamber, and there are multiple nozzles corresponding to the filter bags on the air injection pipe; the other end of the pre-dust plate is installed with a The inclined deflector plate is fixed with a counterweight on the side of the pre-dust plate facing away from the intake pipe. Through the secondary collection of dust in the flue gas, the patent makes the gas finally discharged from the outlet pipe meet the industrial standard, and it miniaturizes the existing large-scale equipment, which is suitable for some factories with a small amount of dust treatment, and the cost is low. lower. However, the filter bag and the skeleton setting outside the filter bag can’t actually play much effect, and the dust tends to fly when the pulse blowing shakes off, and it takes a long time to settle, so the efficiency is not high.

Utility model content

The technical problem to be solved by the utility model is to provide a pulse type bag filter which can effectively avoid dust flying and has a short dust precipitation time.

In order to achieve the above purpose, the technical solution of the utility model is: a pulse bag filter, including a box body, a plurality of filter bags arranged in the box body, the box body is provided with an inlet, an outlet, and a dust discharge port. There is a valve on the dust exhaust port, the air outlet of each filter bag is connected with the outlet, and the air inlet of each filter bag is connected with the inlet. The box is also provided with a pulse device pointing to the air outlet of the filter bag. It is characterized in that: the box body is provided with a dustproof cover on the outside of the circumference of each filter bag, and the dustproof cover includes a cylinder body detachably arranged on the top of the box body, a cover body hingedly arranged at the lower end of the cylinder body, A tension spring is provided between the cover and the cylinder, and a plurality of cylinder inlets are provided on the circumferential side wall of the cylinder, and a drain plate is arranged on the inner wall of each cylinder inlet, and the drain plate is composed of Outside to inside and inclined from top to bottom, the lower end of each drainage plate is lower than the lower end of each cylinder inlet.

Preferably, the inlet is arranged on the side of the box, and a baffle is hinged between the inlet and each filter bag in the box, and limit plates are respectively arranged on the left and right sides of the baffle on the box, A limit spring is connected between each limit plate and the baffle plate.

Preferably, the lower end of the baffle is lower than the lower end of each filter bag.

Preferably, a rubber sealing ring is provided along the lower end of the barrel.

The above technical scheme has the following beneficial effects:

1. The dust cover formed by the combination of cylinder body, cover body, tension spring, cylinder body inlet and drainage plate can realize no obstruction during air intake and smooth dust filtration. When pulse blowing, due to dustproof The setting of the cover can realize that the dust is blocked by the dust cover, and the dust can fall naturally after hitting the dust cover, and the cover body can be made of light materials, such as plastic, which will open when pulsed to discharge the dust;

2. Through the setting of the baffle, the limit plate and the limit spring, the problems of excessive swing and impact of the baffle can be well solved, effectively avoiding noise, and the baffle can block the intake air and directly point to the filter bag, the baffle A thin iron plate can be used, which has its own weight;

3. There is a rubber sealing ring on the lower end of the cylinder, which can make the cover and the cylinder fit tightly without making noise.

Description of drawings

Fig. 1 is the structural representation of the utility model;

Fig. 2 is a structural schematic diagram of the cooperation between the dust cover and the filter bag.

Detailed ways

The utility model will be described in further detail below in conjunction with the accompanying drawings and specific embodiments.

Referring to Fig. 1 and Fig. 2, a pulse bag filter includes a box body 1 and a plurality of filter bags 2 arranged in the box body 1. The box body 1 is provided with an inlet 11, an outlet 12, a dust discharge Port 13, the dust discharge port 13 is provided with a valve 14, the air outlet of each filter bag 2 is connected with the outlet 12, and the air inlet of each filter bag 2 is connected with the inlet 11, wherein the filter bag is a known component, its The air inlet and the air outlet are also known, so there is not much explanation here. The box body 1 is also provided with a pulse device 3 pointing to the air outlet of the filter bag 2. The pulse device 3 is conventional equipment, which extends to the top of each filter bag through a connecting pipe. nozzle. The casing 1 is provided with a dustproof cover 4 on the outside of the circumference of each filter bag 2, and the dustproof cover 4 includes a cylinder 41 detachably arranged on the top of the casing 1, and a hinged connection at the lower end of the cylinder 41. A cover 42, a tension spring 43 is provided between the cover 42 and the cylinder 41, a plurality of cylinder inlets 411 are provided on the circumferential side wall of the cylinder 41, and the inner side walls of each cylinder inlet 411 There are diversion plates 412 on the top, and the diversion plates 412 are inclined from outside to inside and from top to bottom, and the lower ends of each diversion plate 412 are lower than the lower ends of the cylinder inlets 411 . A rubber sealing ring 44 is provided along the lower end of the barrel 41 . In this way, when the airflow enters, there will be a downward blowing force through the action of the drainage plate, which can prevent the dust from clogging the pores of the filter bag, and can also blow off part of the dust on the original pores; when the pulse device is working, The filter bag is blown from the inside to the outside to blow the dust, which can prevent the dust from being discharged directly from the inlet of the cylinder. The dust will hit the deflector and the inner wall of the cylinder and then fall, and the airflow will also blow the cover, so that the dust will fall. .

The inlet 11 is located on the side of the box body 1, and the box body 1 is hingedly provided with a baffle plate 5 between the inlet port 11 and each filter bag 2, and the box body 1 is located on the left and right sides of the baffle plate 5 Limiting plates 6 are respectively provided, and a limiting spring 7 is connected between each limiting plate 6 and the baffle plate 5 . The lower end of the baffle plate 5 is lower than the lower end of each filter bag 2 .

The above technical scheme has the following beneficial effects:

1. The dust cover formed by the combination of cylinder body, cover body, tension spring, cylinder body inlet and drainage plate can realize no obstruction during air intake and smooth dust filtration. When pulse blowing, due to dustproof The setting of the cover can realize that the dust is blocked by the dust cover, and the dust can fall naturally after hitting the dust cover, and the cover body can be made of light materials, such as plastic, which will open when pulsed to discharge the dust;

2. Through the setting of the baffle, the limit plate and the limit spring, the problems of excessive swing and impact of the baffle can be well solved, effectively avoiding noise, and the baffle can block the intake air and directly point to the filter bag, the baffle A thin iron plate can be used, which has its own weight;

3. There is a rubber sealing ring on the lower end of the cylinder, which can make the cover and the cylinder fit tightly without making noise.

The above is only a preferred embodiment of the utility model, and equivalent changes made by those skilled in the art according to the claims all fall within the protection scope of the present case.

Claims (4)

1. A pulse bag filter, comprising a casing, a plurality of filter bags located in the casing, the casing is provided with an inlet, an outlet, and a dust outlet, and the dust outlet is provided with a valve, and each filter bag The air outlet of each filter bag is connected with the outlet, and the air inlet of each filter bag is connected with the inlet. The box is also equipped with a pulse device pointing to the air outlet of the filter bag. It is characterized in that: the box is located on each filter bag. The outside of the circumference of the bag is provided with a dust-proof cover, which includes a cylinder detachably arranged on the top of the box, a cover hinged at the lower end of the cylinder, and a set between the cover and the cylinder The spring is tightened, and a plurality of cylinder inlets are opened on the circumferential side wall of the cylinder, and a drainage plate is provided on the inner wall of each cylinder inlet, and the drainage plate is inclined from outside to inside and from top to bottom, and each drainage The lower end of the plate is lower than the lower end of each cylinder inlet. 2. A pulse bag filter according to claim 1, characterized in that: the inlet is located on the side of the box, and the box is hinged with a baffle between the inlet and each filter bag, so Limiting plates are respectively arranged on the left and right sides of the baffle on the box body, and a limiting spring is connected between each limiting plate and the baffle. 3. A pulse bag filter according to claim 2, characterized in that: the lower end of the baffle is lower than the lower end of each filter bag. 4. A pulse bag filter according to claim 1, characterized in that: the lower end of the cylinder is provided with a rubber sealing ring.