CN215310959U

CN215310959U - Pulse dust collector

Info

Publication number: CN215310959U
Application number: CN202121288767.0U
Authority: CN
Inventors: 金国洪; 刘定龙; 胡兆华
Original assignee: Liyang City Yuda Machinery Co ltd
Current assignee: Liyang City Yuda Machinery Co ltd
Priority date: 2021-06-09
Filing date: 2021-06-09
Publication date: 2021-12-28
Anticipated expiration: 2031-06-09

Abstract

The utility model discloses a pulse dust collector which comprises a box body, a filtering system arranged in the box body, a ventilating system arranged above the box body and communicated with a cavity of the box body, a blowing system arranged above the box body and used for blowing and washing the filtering system, and an air supply system used for supplying air to the blowing system, wherein the ventilating system is arranged above the box body and communicated with the cavity of the box body; the box body consists of an upper box body, a middle box body and a lower box body; the lower box body is of a hollow square frame structure, and a blind window for supplementing air is arranged on the side wall of the lower box body. The pulse dust collector adopts a box-type structure, is assembled in a split type modularization mode, is convenient for container transportation, and solves the problems that the dust collector in the prior art is low in efficiency and pollutes the surrounding environment.

Description

Pulse dust collector

Technical Field

The utility model relates to a dust remover, in particular to a pulse dust remover.

Background

With the rapid development of the feed industry, the raw materials are fed in and out by using a large number of large-scale transportation tools, the raw materials are stored and prepared more and more frequently, a large amount of air pollution is inevitably generated due to the feeding in and out of the raw materials, and places polluted by dust must be cleaned in time in order to maintain clean production environment. The dust remover can be used for dust recovery treatment, filtration and dust collection and the like, and is also widely used in industries of feed, food, grain and the like. However, the currently used pulse dust collector has the following disadvantages: firstly, the structure occupies large area and is inconvenient to install; secondly, the dust collector has low dust collection efficiency and cannot be used for large-area dust collection.

SUMMERY OF THE UTILITY MODEL

Utility model purpose: in order to solve the problems in the prior art, the utility model provides a pulse dust collector which is compact in structure, small in occupied area and high in dust removal efficiency.

The technical scheme is as follows: the utility model discloses a pulse dust collector which comprises a box body, a filtering system arranged in the box body, a ventilating system arranged above the box body and communicated with a cavity of the box body, a blowing system arranged above the box body and used for blowing and washing the filtering system, and an air supply system used for supplying air to the blowing system, wherein the ventilating system is arranged above the box body and communicated with the cavity of the box body; the box body consists of an upper box body, a middle box body and a lower box body; the lower box body is of a hollow square frame structure, and a blind window for supplementing air is arranged on the side wall of the lower box body.

As a preferable structure of the present invention, the case is a square case.

As a preferred structure of the utility model, the blowing system comprises a plurality of blowing devices, each blowing device comprises an air bag communicated with the air outlet of the air supply system and a plurality of blowing rods arranged on the side surface of the air bag, and the outlets of the blowing rods are positioned in the upper cavity of the box body; the blowing rod comprises a first vertically extending branch pipe connected with the air bag and a second transversely extending branch pipe communicated with the first branch pipe, and a plurality of nozzles used for sending out air are arranged on the second branch pipe.

As a preferable structure of the utility model, the upper box body, the middle box body and the lower box body are connected through flanges.

As a preferable structure of the present invention, a perforated plate for fixing the filtering system is provided between the upper case and the middle case.

As a preferable structure of the present invention, the ventilation system is a fan disposed at a top end of the upper case.

As a preferable structure of the utility model, the side wall of the middle box body is provided with a plurality of opening doors for maintenance, and each opening door is sealed with the side wall of the middle box body through a rubber strip.

As a preferable structure of the utility model, the side walls of the upper box body, the middle box body and the lower box body are all provided with reinforcing ribs.

As a preferable structure of the utility model, the middle box body is provided with a signal pulse control instrument and an explosion-proof port.

As a preferable structure of the utility model, the air supply system comprises an air compressor, a filtering air tank communicated with the air compressor, an air storage tank communicated with the filtering air tank, and an air storage bag communicated with the air storage tank, wherein a plurality of first electromagnetic valves are arranged at the outlet of the air storage bag, and the output ends of the first electromagnetic valves are communicated with the air inlet of the blowing device.

Has the advantages that: (1) the box body of the utility model adopts a split structure, and has compact structure; (2) the lower box body is of a hollow square structure, feeding is performed in a mode of air suction at the bottom of the lower box body, the air inlet amount is large, the noise of equipment is low, the dust removal efficiency is high, the lower box body is provided with a shutter type structure and used for supplementing air, and the lower box body is of a hollow frame-shaped structure and is beneficial to recovery and treatment of waste materials; (3) the utility model adopts a square box type structure, and the occupied area is small; (4) the utility model designs a unique injection device, the injection device consists of an injection rod and a nozzle, compressed air passing through an electromagnetic valve passes through the injection rod to the nozzle, so that high-pressure air flow forms instantaneous high-speed injection to cause expansion and contraction of a filter bag of a filtering system, and the aim of injection and dust removal is achieved; (5) the middle box body is provided with four large open doors, the container type structure is adopted, the rubber strips are sealed, the doors can be pressed very tightly, air leakage is not easy to occur, the interior of the box body is convenient to clean, cloth bags and spring cages are convenient to maintain and replace, the doors are convenient to open and close, the doors are flush with the box body, the doors do not protrude out of the box body, and the middle box body is very attractive; (6) the top end of the upper box body is provided with the ventilation system, the top-mounted fan is adopted, and the air outlet pipeline is provided with the air valve for adjusting the size of the air door, so that the flow in the air pipe can be adjusted, the load of the motor is reduced, and the motor of the fan is protected from overload; (7) the explosion-proof opening is formed in the box body, so that dust explosion is prevented, and the safety of equipment is ensured; (8) the utility model is suitable for centralized air suction dust removal and dust removal in pneumatic transmission, can be widely applied to gas-dust separation operation of dust-containing gas, such as industries of feed, food, grain and the like, is also suitable for other industries, and is used for dust recovery treatment and filtration dust collection.

Drawings

FIG. 1 is a schematic view of a pulse dust collector of embodiment 1 of the present invention;

FIG. 2 is a schematic front view of a pulse dust collector in accordance with embodiment 1 of the present invention;

FIG. 3 is a schematic view showing the structure of a blowing rod according to embodiment 1 of the present invention;

FIG. 4 is a schematic structural view of an upper case in embodiment 1 of the present invention;

FIG. 5 is a schematic structural view of a middle box body in embodiment 1 of the present invention;

FIG. 6 is a schematic view of the structure of a lower case in embodiment 1 of the present invention;

FIG. 7 is a schematic view of the structure of an orifice plate in example 1 of the present invention;

FIG. 8 is a schematic structural view of an air supply system according to embodiment 1 of the present invention;

FIG. 9 is a schematic view of the back structure of a pulse dust collector in example 1 of the present invention.

Detailed Description

Example 1: the utility model provides a pulse dust collector, includes box 1, sets up in the inside filtration system 2 of box 1, set up in box 1 top with the ventilation system 3 of box 1 cavity intercommunication, set up the blowing system 4 that is used for blasting filtration system 2 and is used for the air supply system 5 to blowing system 4 above box 1. In the utility model, the transverse direction is the extending direction of the X axis in fig. 2, and the vertical direction is the extending direction of the Y axis.

In the embodiment, the box body 1 is a square box body, the box body 1 is of a slender square structure, the box body 1 is made of thin steel plates, the folded plates on the periphery are in round-angle smooth transition, the peripheries of the folded plates are all folded plates inwards, reinforcing ribs on the outer plane are reinforced, the box body is firm and attractive, the bottom of the box body 1 serves as a main air inlet, and an air outlet is formed in the upper portion of the box body. The method specifically comprises the following steps: the box body 1 consists of an upper box body 101, a middle box body 102 and a lower box body 103; the shells of the upper box body 101, the middle box body 102 and the lower box body 103 are all made of thin steel plates, the box bodies are welded in a split mode and assembled in a split mode, and the upper box body 101, the middle box body 102 and the lower box body 103 are all connected through flanges.

As shown in fig. 4, the upper box 101 is a frame-shaped structure, the upper and lower parts of the upper box 101 are discontinuously welded with the first flange 1011, the upper box is split-assembled, the welded part is supported by the first reinforcing rib 1012, the first reinforcing rib 1012 is arranged on the outer side wall surface of the upper box 101, the first reinforcing rib 1012 vertically extends to cover the welded seam, and the whole structure is welded to prevent deformation.

As shown in fig. 5, the middle box body 102 is a square frame structure, the upper and lower connecting ends of the middle box body 102 are respectively provided with a second flange 1022, the middle box body 102 is assembled after being folded into pieces, the peripheral round corners are excessive, the joint is supported by a second reinforcing rib 1023 (vertical extension), the welding seam is covered, the inside is supported by a steel pipe 1024, and welding deformation is prevented. The middle box body 102 is provided with a plurality of door opening 1021 for maintenance, and the door opening 1021 and the box body wall of the middle box body 102 are sealed through rubber strips. In this embodiment, well box 102 is provided with four and opens the door greatly, opens and is fixed through container formula door hinge connection between door 1021 and the well box 102, and it is sealed through the rubber strip all around to open door 1021, and this kind of structure makes opening the door and presses very tightly, is difficult to the air leakage, conveniently clears up the inside of the box and maintains and change sack and spring cage bone, makes things convenient for the switch door, opens door 1021 and flushes with the box, and the box that does not bulge is very pleasing to the eye.

As shown in figure 9, the middle box body 102 is provided with a signal pulse controller 105, the interior of the middle box body is provided with a differential pressure gauge, the upper box body 101 and the middle box body 102 are respectively provided with a hole, a pipe joint is connected, the upper box body is communicated with the middle box body by a hose, the other end of the upper box body is connected with two terminals on the signal pulse controller 105, the signal pulse controller 105 is communicated with pipelines of the upper box body 101 and the middle box body 102, and the signal pulse controller 105 is power-saving, good in anti-interference performance, contactless and reliable in operation. The middle box body 102 is also provided with an explosion-proof opening 106 for preventing dust explosion.

As shown in fig. 7, a hole plate 104 is separated between the upper box 101 and the middle box 102, the hole plate 104 is a single plate structure, the laser machine cuts holes to ensure precision and prevent deformation, and mainly hangs the filter bag cage bones of the filter system 2 to bear large load. The orifice plate 104 separates into upper and lower two parts with the box, makes it form pressure differential under fan 301 effect, and the filter cloth of cover in the filter bag frame outside is for the acupuncture to wash the woollen that sinks, is used for filtering the gas that gets into to have the dust particle in this equipment, and the air after filtering through the sack is discharged from air-purifying chamber upper portion export. The filter bags need to be checked one by one for size and sewing quality, and after the filter bags are confirmed to be intact, the filter bags are sleeved on the frame to tighten the upper opening, so that air leakage cannot occur.

The lower box 103 is a hollow square frame structure, the side wall of the lower box 103 is provided with a louver 1031 for supplementing wind, as an optional mode of the present invention, the louver 1031 is a plurality of strip-shaped windows which are arranged on the side wall of the lower box 103 and extend transversely, the upper and lower ends of the lower box 103 are provided with third flanges 1032, and meanwhile, the lower box 103 is provided with third reinforcing ribs 1033 which extend vertically.

As shown in fig. 2, the top end of the pulse dust collector of this embodiment is provided with a ventilation system 3, specifically, a fan 301 is arranged at the top of the middle of the upper cover of the upper box 101, an air passage of the fan 301 is communicated with the cavity of the box 1, and an air outlet pipeline of the fan 301 is provided with an air valve for adjusting the air volume, so as to facilitate adjusting the flow rate in the air duct, reduce the load of the motor, and protect the motor of the fan from overloading.

As shown in fig. 1, 2 and 3, the blowing system 4 includes a plurality of blowing devices 40, each blowing device 40 includes an air bag 401 communicated with an air outlet of the air supply system 5 and a plurality of blowing rods 402 disposed at the side of the air bag 401, and outlets of the blowing rods 402 are disposed in an upper cavity of the box body 1, specifically, in a cavity of the upper box body 101; the blowing rod 402 comprises a first branch pipe 4021 extending vertically and connected with the air bag 401, and a second branch pipe 4022 extending transversely and communicated with the first branch pipe 4021, and a plurality of nozzles 4023 for sending out gas are arranged on the second branch pipe 4022.

In a specific application, the number of the blowing devices 40 is selected according to the size of the box body, as shown in fig. 2, in this embodiment, two blowing devices 40 are respectively arranged on two sides of the ventilation system 3, the blowing devices 40 are of a top-mounted structure, four blowing devices 40 employ four air bags 401, each air bag 401 is provided with two blowing rods 402 in a matched manner, so that air injection is sufficient, the cloth bag of the filtering system 2 is cleaned, and each blowing rod 402 is provided with a second electromagnetic valve 403 for controlling the air injection amount entering each blowing rod 402. The method specifically comprises the following steps: compressed air passing through the first electromagnetic valve 505 is sent to the plurality of nozzles 4023 distributed on the second branch pipe 4022 through the first branch pipe 4021 of the blowing rod 402, so that high-pressure air flow forms instantaneous high-speed injection to cause expansion and contraction of the filter bag, and the aim of blowing and cleaning ash is fulfilled. As shown in fig. 3, a first sealing head 4024 is disposed at an end of a first branch pipe 4021 of the blowing rod 402, and a second sealing head 4025 is disposed at a top end of a second branch pipe 4022 to ensure the end of the branch pipe is sealed. The inlet of the second branch 4022 is connected to the side wall of the first branch 4021.

The blowing devices 40 in this embodiment are uniformly spaced at the upper end of the upper box 101, so as to ensure that the filtering system 2 distributed in the middle box 102 can be fully blown. In addition, the blowing rods of the blowing device 40 are arranged on the side of the air bag 401, so that no additional space is occupied during installation, and further, the second branch pipes 4022 of the blowing rods 402 are distributed transversely, so that the gas entering the upper box body 101 uniformly blows the filter system 2 below the nozzles 4023 along the nozzles 4023 on the second branch pipes 4022 which are distributed transversely.

As shown in fig. 8, the blowing system 5 includes an air compressor 501, a filter gas tank 502 communicated with the air compressor 501, a gas tank 503 communicated with the filter gas tank 502, and a gas bag 504 communicated with the gas tank 503, wherein a plurality of first electromagnetic valves 505 are arranged at an outlet of the gas bag 504, and output ends of the first electromagnetic valves 505 are communicated with a gas inlet of the blowing device 40. The air storage tank 503 is provided with a safety valve 506, the bottom end of the air storage tank 503 is provided with a water outlet 507, the air storage tank 503 is also provided with a pressure gauge 508, compressed air is sent into the air bag 401 through the air filter tank 502, the air storage tank 503 and the air storage bag 504 by the air compressor 501 through the output end of the first electromagnetic valve 505, and a pipeline between the air storage tank 503 and the air storage bag 504 is provided with a steam-water separator 509. An O-shaped sealing ring is required to be additionally arranged at the joint of the air storage bag 504 and the input end of the first electromagnetic valve 505, the O-shaped sealing ring is not required to be arranged at the output end of the first electromagnetic valve 505, the output end of the first electromagnetic valve 505 is connected with the air bag 401 through a pipe joint, and the air outlet of the air bag 401 is connected with the blowing rod 402. The product can be put into production and use after being comprehensively checked and trial run. When the product is put into production and used, the blowing width, interval and period are determined according to the ash removal requirement, the resistance loss and ash discharge condition of the product are checked, and the dust removal efficiency is measured.

The pulse dust collector adopts compressed air pulse reverse blowing filter bags to ensure that the resistance of the equipment is controlled within a certain range, the first electromagnetic valve 505 is opened to be closed to finish one-time blowing of one row of filter bags, the period of time is called pulse width C, the time interval of blowing of two adjacent rows of filter bags is pulse interval T, and the time of one-time blowing of all the rows of filter bags is called pulse period T. After setting, the pulse controller carries out automatic control. The consumption of compressed air for ash removal can be adjusted by a pulse controller according to the treatment capacity, dust concentration and the like of dust-containing air, and an electromagnetic pulse valve is adopted, so that the device has the advantages of compact structure, reliable work and convenience in installation.

The working method of the pulse dust collector comprises the following steps: the dust-containing air flow enters the middle box body 102 from the lower bottom box body 103, the dust flows to the filter bags in the filter system 2 along with the air flow, the air passes through the filter bags and enters the bags, the air is discharged through the air pipe after passing through the upper box body 101, the dust is blocked outside the filter bags and cannot be discharged along with the air flow, the effect of separating the air from the dust is achieved, along with the increase of time, the dust on the outer surfaces of the filter bags is gradually increased, the resistance of the air flow passing through the filter bags is increased, the blowing system sequentially cleans the dust of each filter bag according to a certain sequence, compressed air is blown into the filter bags through the pulse valves, the volumes of the filter bags are expanded, short reverse air flow (opposite to the flow direction of the filtered air) is generated in fiber gaps, and therefore the powder accumulated on the outer surfaces of the filter bags is cleaned.

Claims

1. The pulse dust collector is characterized by comprising a box body (1), a filtering system (2) arranged in the box body (1), a ventilation system (3) which is arranged above the box body (1) and communicated with a cavity of the box body (1), a blowing system (4) which is arranged above the box body (1) and used for blowing and washing the filtering system (2), and an air supply system (5) used for supplying air to the blowing system (4); the box body (1) consists of an upper box body (101), a middle box body (102) and a lower box body (103); the lower box body (103) is of a hollow square frame structure, and a blind window (1031) for supplementing air is arranged on the side wall of the lower box body (103).

2. A pulse dust collector according to claim 1, characterized in that the box (1) is a square box.

3. The pulse dust collector of claim 1, wherein the blowing system (4) comprises a plurality of blowing devices (40), each blowing device (40) comprises an air bag (401) communicated with the air outlet of the air supply system (5) and a plurality of blowing rods (402) arranged at the side of the air bag (401), and the outlets of the blowing rods (402) are positioned in the upper cavity of the box body (1); the blowing rod (402) comprises a first branch pipe (4021) which is connected with the air bag (401) and extends vertically and a second branch pipe (4022) which is communicated with the first branch pipe (4021) and extends transversely, and a plurality of nozzles (4023) used for sending gas are arranged on the second branch pipe (4022).

4. A pulse dust collector as claimed in claim 1, characterized in that the upper tank (101), the middle tank (102) and the lower tank (103) are connected by flanges.

5. A pulse precipitator according to claim 1, characterized in that a perforated plate (104) for fixing the filter system (2) is arranged between the upper casing (101) and the middle casing (102).

6. A pulse dust collector as claimed in claim 1, characterized in that said ventilation system (3) is a fan (301) arranged at the top end of the upper box (101).

7. A pulse dust collector as claimed in claim 1, characterized in that the side wall of the middle box body (102) is provided with a plurality of opening doors (1021) for maintenance, and each opening door (1021) is sealed with the side wall of the middle box body (102) by a rubber strip.

8. A pulse dust collector as claimed in claim 1, characterized in that the side walls of the upper box (101), the middle box (102) and the lower box (103) are provided with reinforcing ribs.

9. A pulse dust collector as claimed in claim 1, characterized in that the middle box body (102) is provided with a signal pulse control instrument (105) and an explosion-proof port (106).

10. The pulse dust collector of claim 3, wherein the air supply system (5) comprises an air compressor (501), a filtering air tank (502) communicated with the air compressor (501), an air tank (503) communicated with the filtering air tank (502), and an air storage bag (504) communicated with the air tank (503), wherein a plurality of first electromagnetic valves (505) are arranged at the outlet of the air storage bag (504), and the output ends of the first electromagnetic valves (505) are communicated with the gas inlet of the blowing device (40).