CN216726240U

CN216726240U - Long bag type pulse dust collector

Info

Publication number: CN216726240U
Application number: CN202123389768.7U
Authority: CN
Inventors: 何井贵; 黄飞龙; 何海波; 林志鑫; 何称福; 曾鑫
Original assignee: Guangdong Hengliang Lankang Environmental Protection Technology Co ltd
Current assignee: Guangdong Hengliang Lankang Environmental Protection Technology Co ltd
Priority date: 2021-12-29
Filing date: 2021-12-29
Publication date: 2022-06-14
Anticipated expiration: 2031-12-29

Abstract

A long-bag type pulse dust collector comprises a dust collector main body, wherein the dust collector main body comprises a box body and an ash deposition hopper arranged at the bottom of the box body, a turbid air cavity and a clean air cavity which are sequentially arranged from bottom to top are formed in the box body at intervals by a filter bag fixing plate, and a plurality of filter bags positioned in the turbid air cavity are arranged on the filter bag fixing plate; the utility model discloses a filter bag filter, including turbid qi intracavity, locating net, filter bag, rectangular hole, filter bag, locating net, filter bag, the interior positioning net that installs of turbid qi intracavity, the locating net has a plurality of rectangular holes that are vertically and horizontally arranged and set up, the lower extreme of filter bag passes the rectangular hole and extends to the below of locating net, four limits of rectangular hole all are connected with the outside contact of filter bag, leave the vacancy between rectangular hole and the filter bag. According to the utility model, the lower ends of the filtering filter bags are limited in the rectangular holes through the positioning net, and the adjacent filtering filter bags are positioned and interconnected with each other, so that shaking can be effectively prevented, the aim of preventing the adjacent filtering filter bags from colliding with each other is fulfilled, and the service lives of the filtering filter bags are effectively prolonged.

Description

Long bag type pulse dust collector

Technical Field

The utility model relates to the field of environmental protection equipment, in particular to a long bag type pulse dust collector.

Background

The pulse dust collector can also be called a bag type dust collector, and is a dry dust filtering device. After the flue gas enters the bag type dust collector, dust with large particles and large specific gravity settles down under the action of gravity and falls into the dust hopper, and the dust is blocked when the gas containing smaller dust passes through the filter bag, so that the gas is purified.

The length of a filter bag of a common small and medium-sized dust collector is about 2-3 meters, and later, the length of the filter bag of the dust collector is adjusted to 4-6 meters by people, so that the long-bag pulse dust collector is called. Nowadays, the filter bag of the dust collector with the length of 7 meters to 9 meters is also used much. In the prior art, the filter bag of the long-bag pulse dust collector is only connected with the filter bag fixing plate through the filter bag framework at the upper end, the lower end is of a non-connection structure, when external smoke enters the dust collector, the filter bag is easily disturbed by airflow formed by the smoke to enable the filter bag to swing in a large amplitude, collision easily occurs between adjacent filter bags, and the filter bags are damaged.

SUMMERY OF THE UTILITY MODEL

In order to overcome the defects of the prior art, the utility model provides a long bag type pulse dust collector.

The technical scheme adopted by the utility model for solving the technical problem is as follows:

a long-bag type pulse dust collector comprises a dust collector main body, wherein the dust collector main body comprises a box body and an ash deposition hopper arranged at the bottom of the box body, a turbid air cavity and a clean air cavity which are sequentially arranged from bottom to top are formed in the box body at intervals by a filter bag fixing plate, and a plurality of filter bags positioned in the turbid air cavity are arranged on the filter bag fixing plate; the method is characterized in that: the utility model discloses a filter bag filter, including turbid qi intracavity, locating net, filter bag, rectangular hole, filter bag, locating net, filter bag, the interior positioning net that installs of turbid qi intracavity, the locating net has a plurality of rectangular holes that are vertically and horizontally arranged and set up, the lower extreme of filter bag passes the rectangular hole and extends to the below of locating net, four limits of rectangular hole all are connected with the outside contact of filter bag, leave the vacancy between rectangular hole and the filter bag.

In the present invention, the number of the rectangular holes is greater than the number of the filter pockets.

In the utility model, a first vibration device for vibrating the filter bag fixing plate is arranged on the filter bag fixing plate, and the first vibration device is positioned in the air purifying cavity.

In the utility model, the positioning net is connected with a second vibration device which can make the positioning net vibrate.

In the utility model, a plurality of vibration springs are arranged on the outer side of the positioning net, one end of each vibration spring is fixedly connected with the positioning net, and the other end of each vibration spring is fixedly connected with the cavity wall of the turbid air cavity.

In the utility model, the second vibration device comprises a cam positioned in the turbid air cavity, a rotating shaft rotationally connected with the turbid air cavity, and a vibration motor arranged outside the box body, wherein one end of the rotating shaft extends out of the box body and is in transmission connection with an output shaft of the vibration motor, and a vibration matching plate in sliding contact with the cam is welded on the positioning net.

In the utility model, two air inlets which are arranged in bilateral symmetry are arranged on the rear side surface of the dust hopper.

In the utility model, the box body is provided with a pulse ash removal mechanism for removing ash from the filter bag in the air purification cavity.

The pulse ash removal mechanism comprises an injection pipe, ash removal nozzles, an injection air bag and an electromagnetic pulse valve, wherein the injection pipe is horizontally arranged in an air purification cavity, the bottom of the injection pipe is provided with a plurality of ash removal nozzles, each ash removal nozzle corresponds to the position right above one filtering filter bag, one end part of the injection pipe is connected with the injection air bag through the electromagnetic pulse valve, the injection air bag and the electromagnetic pulse valve are both arranged outside a box body, and the electromagnetic pulse valve is connected with a PLC (programmable logic controller).

The utility model has the beneficial effects that: the filter bag fixing device is provided with the positioning net, the positioning net is provided with a plurality of rectangular holes which are arranged in a longitudinal and transverse mode, the lower ends of the filter bags penetrate through the rectangular holes and extend to the lower portion of the positioning net, so that the lower ends of the filter bags are limited in the rectangular holes, adjacent filter bags are mutually positioned and interconnected, shaking can be effectively prevented, the purpose of preventing the adjacent filter bags from colliding with each other is achieved, and the service life of the filter bags is effectively prolonged.

Drawings

The utility model is further illustrated by the following figures and embodiments:

FIG. 1 is a front view of the present embodiment;

FIG. 2 is a rear view of the duster body;

FIG. 3 is a first schematic view of the internal structure of the main body of the dust catcher;

FIG. 4 is a second schematic view of the internal structure of the main body of the dust catcher;

FIG. 5 is an enlarged view of A in FIG. 4;

FIG. 6 is an enlarged view of B in FIG. 4;

FIG. 7 is a schematic view of the positioning net and the filter bag.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention.

Referring to fig. 1-7, an air supply system for pulse type environmental protection dust remover, includes the dust remover main part, with dust collector main part lift up's dust removal support 100, the dust remover main part includes box 1, arranges from a left side to the right side and installs a plurality of deposition fill 2 in box 1 bottom, in this embodiment, the inside of box 1 is formed by filter bag fixed plate 3 interval from supreme foul air chamber 200 and the clean air chamber 300 of arranging in proper order down, deposition fill 2 and foul air chamber 200 intercommunication, install a plurality of filter bags 4 that are located foul air chamber 200 on the filter bag fixed plate 3, filter bags 4 pass through filter bag skeleton 5 and filter bag fixed plate 3 fixed connection, communicate through filter bags 4 between foul air chamber 200 and the clean air chamber 300. Furthermore, a positioning net 6 is installed in the turbid air cavity 200, the positioning net 6 is formed by welding a plurality of criss-cross reinforcing steel bars, and the cross section of each reinforcing steel bar is circular, so that the accumulation of dust can be reduced; the positioning net 6 is provided with a plurality of rectangular holes 61 which are arranged vertically and horizontally, and the lower ends of the filtering filter bags 4 penetrate through the rectangular holes 61 and extend to the lower part of the positioning net 6, so that the lower ends of the filtering filter bags 4 are limited in the rectangular holes 61, the adjacent filtering filter bags 4 are positioned mutually, the purpose of preventing the adjacent filtering filter bags 4 from colliding with each other is achieved, and the service life of the filtering filter bags 4 is effectively prolonged.

In this embodiment, the cross-sectional shape of the filter bag 4 is circular, four sides of the rectangular hole 61 are in contact connection with the outer side of the filter bag 4, that is, the filter bag 4 is equivalent to an inscribed circle of the rectangular hole 61, and a gap is left between the rectangular hole 61 and the filter bag 4; the number of the rectangular holes 61 is larger than that of the filter pockets 4. Through the arrangement of the empty positions and the number of the rectangular holes 61, the smoke can also enter the positioning net 6 from bottom to top and pass through the filtering filter bag 4 to be filtered, so that the aim of fully utilizing the filtering area of the filtering filter bag 4 is fulfilled; and moreover, the dust on the filter bag 4 can conveniently pass through the positioning net 6 from top to bottom and fall into the dust hopper 2, so that the dust remover can conveniently remove the dust.

In a preferred embodiment, in order to improve the dust removing effect, the filter bag fixing plate 3 is provided with a first vibration device 400 for vibrating the filter bag fixing plate, the first vibration device 400 is located in the clean air chamber 300, and the first vibration device 400 vibrates the filter bag fixing plate 3 and the filter bag 4, so that dust attached to the filter bag fixing plate 3 or the filter bag 4 is shaken down to the dust collecting hopper 2. The first vibration device 400 includes a first vibration motor connected to the PLC controller and a first cam provided on an output shaft of the first vibration motor.

In a preferred embodiment, the positioning net 6 is connected with a second vibration device for vibrating the positioning net 6, and the first vibration device 400 vibrates the positioning net 6 and the filter bag 4 so as to shake off dust attached to the positioning net 6 or the filter bag 4 into the dust hopper 2; the second vibration device may be provided in plurality and distributed along the circumference of the positioning net 6. The second vibrating device comprises a cam 62 positioned in the turbid air cavity 200, a rotating shaft 63 rotatably connected to the turbid air cavity 200, and a vibrating motor 64 installed outside the box body 1, wherein one end of the rotating shaft 63 extends out of the box body 1 and is in transmission connection with an output shaft of the vibrating motor 64, the vibrating motor 64 is connected with the PLC, a vibrating matching plate 65 in sliding contact with the cam 62 is welded on the positioning net 6, and the cam 62 is in sliding matching with the vibrating matching plate 65 during rotation, so that the positioning net 6 is driven to vibrate.

In this embodiment, a plurality of vibrating springs 66 are disposed outside the positioning net 6, one end of each vibrating spring 66 is fixedly connected to the positioning net 6, and the other end of each vibrating spring 66 is fixedly connected to the wall of the turbid air chamber 200, so that the positioning net 6 can vibrate better to shake off dust on the positioning net 6 and the filter bag 4. And a supporting seat for connecting the other end of the vibration spring 66 is arranged on the cavity wall of the turbid air cavity 200. Of course, the positioning net 6 is not limited to the vibrating spring 66, and may be directly installed in the turbid air chamber 200 through a connector.

In a preferred embodiment, the bottom of the dust hopper 2 is provided with a dust discharging valve 7, the bottom of the dust discharging valve 7 is provided with a leakage-proof valve 8, and the leakage-proof valve 8 is used for blocking the output end of the dust discharging valve 7 so as to prevent dust from leaking out of the bottom of the dust discharging valve 7. The ash discharge valve 7 and the leakage-proof valve 8 are connected with a PLC (programmable logic controller), and the PLC is connected with a control panel and used for setting working parameters for the PLC to enable the PLC to control the system to work.

As a preferred embodiment, a dust removing opening is formed in the front side surface of the dust collecting hopper 2, a dust hopper door for opening and closing the dust removing opening is further arranged on the front side surface of the dust collecting hopper 2, and the dust hopper door is used for manually removing dust hard blocks formed by dust condensation. Further, a bin wall vibrator 500 is further arranged on the side face of the dust hopper 2, the bin wall vibrator 500 is connected with the PLC, and the bin wall vibrator 500 is used for generating vibration to avoid dust accumulation on the bin wall of the dust hopper 2.

In a preferred embodiment, the dust removing bracket 100 is provided with an air supply duct 9 positioned at the rear side of the box body 1, and the bottom of the air supply duct 9 is provided with a plurality of air distributing pipes 91 communicated with the inside of the air supply duct; two air inlets 201 which are arranged in a bilateral symmetry mode are formed in the rear side face of the dust hopper 2, each air inlet 201 is communicated with one air distributing pipe 91, two air inlets 201 are formed in each dust falling dust hopper 2, air inlet efficiency of the dust remover main body can be improved, smoke can enter from the two air inlets 201 in the rear side face of the dust hopper 2 and can collide together under the action of the inner wall of the front end of the dust hopper 2, the purpose of reducing air speed is achieved, the air speed is reduced, the situation that the filtering filter bag 4 is blown due to too much wind power of the smoke is avoided, meanwhile, large-particle dust can directly fall into the dust hopper 2, and the purpose of improving filtering effect and capacity is achieved.

As a preferred embodiment, the air inlet 201 is connected to the air distributing pipe 91 through an air inlet control valve 202, and the air inlet control valve 202 can open and close the air inlet 201 and adjust the air inlet volume of the air inlet 201. And after closing one of the air inlets 201 on the dust hopper 2, only one air inlet 201 can be reserved for air intake, so that the air speed of the flue gas entering from the air inlet 201 is high, and meanwhile, a spiral air flow can be formed in the dust hopper 2 under the action of the inner wall at the front end of the dust hopper 2 to wash the inner wall of the dust hopper 2 and the inner wall of the turbid air cavity 200, so that the dust attached to the inner wall of the dust hopper 2 and the inner wall of the turbid air cavity 200 can be impacted by the impact force of the air flow, and then the dust can fall into the dust hopper 2. In this embodiment, the air inlet control valve 202 is an electric air valve, and is controlled by a PLC controller, so as to realize automatic control of communication between the air distributing pipe 91 and the air inlet 201.

In a preferred embodiment, a wind shield 203 is arranged in the dust hopper 2, and the wind shield 203 is used for preventing the airflow entering from the air inlet from directly blowing the dust accumulated in the dust hopper 2, so as to avoid the dust flying phenomenon. In this embodiment, the wind deflector 203 has a tapered structure, and the top end of the wind deflector 203 is lower than the lower end of the air inlet 201.

As a preferred embodiment, an air outlet communicated with the air purifying chamber 300 is arranged on the box body 1, the air outlet is connected with a dust removing fan 600 through an air suction pipeline, the dust removing fan 600 is connected with the PLC controller, and the dust removing fan 600 is used for enabling dust removing equipment to generate negative pressure and suck flue gas. In this embodiment, a pressure difference sensor 700 is connected between the turbid air chamber 200 and the clean air chamber 300, the pressure difference sensor 700 is connected to the PLC controller, the PLC controller is connected to a fan frequency converter, the fan frequency converter is connected to the dust removal fan 600, and the PLC controller can adjust the working power of the dust removal fan 600 through the fan frequency converter to control the suction force of the dust removal fan 600. When the PLC controller detects that the pressure difference value between the turbid air chamber 200 and the clean air chamber 300 is abnormal through the pressure difference sensor 700, the PLC controller controls the air volume of the dust removing fan 600 by adjusting the frequency converter of the dust removing fan 600, and adjusts the pressure difference value between the turbid air chamber 200 and the clean air chamber 300 to the normal working range, so as to ensure the stable operation of the dust removing operation.

As a preferred embodiment, a pulse ash removal mechanism 10 is arranged on the box body 1, the pulse ash removal mechanism 10 comprises an injection pipe 101, ash removal nozzles 102, an injection air bag 103 and an electromagnetic pulse valve 104, the injection pipe 101 is horizontally arranged in the air purification cavity 300, a plurality of ash removal nozzles 102 are arranged at the bottom of the injection pipe 101, each ash removal nozzle 102 corresponds to a position right above one filter bag 4, one end of the injection pipe 101 is connected with the injection air bag 103 through the electromagnetic pulse valve 104, the injection air bag 103 and the electromagnetic pulse valve 104 are both arranged outside the box body 1, and the electromagnetic pulse valve 104 is connected with a PLC controller. In this embodiment, an ash removal bracket for supporting and placing the blowing pipe 101 is arranged in the clean air cavity 300, and the blowing pipe 101 is mounted on the ash removal bracket. Dust with a certain thickness is always deposited on the surface of the filter bag 4, the running resistance of the dust collector is increased, and when the differential pressure sensor 700 reaches a set value, the pulse dust cleaning mechanism 10 starts to work. The electromagnetic pulse valve 104 instantaneously releases a certain amount of compressed air to enter the blowing filter bag 4, the filter bag 4 rapidly bulges and is gradually impacted on the inner filter bag 4 along the arrangement direction, and the blowing ash removal operation is realized. In addition, when the blower frequency converter cannot meet the requirement that the pressure difference between the turbid air cavity 200 and the clean air cavity 300 normally works within the normal working range, the PLC controller starts the electromagnetic pulse valve 104 to work, so that the pulse ash removal mechanism 10 performs ash removal treatment on the filter bag 4, and after the pulse ash removal mechanism 10 works for a plurality of times, the PLC controller continues to adjust the blower frequency converter, so that the pressure difference value between the turbid air cavity 200 and the clean air cavity 300 is restored to the normal range.

The above description is only a preferred embodiment of the present invention, and the technical solutions that achieve the objects of the present invention by substantially the same means are within the protection scope of the present invention.

Claims

1. A long-bag type pulse dust collector comprises a dust collector main body, wherein the dust collector main body comprises a box body (1) and an ash deposition hopper (2) arranged at the bottom of the box body (1), a turbid air cavity (200) and a purified air cavity (300) which are sequentially arranged from bottom to top are formed in the box body (1) at intervals by a filter bag fixing plate (3), and a plurality of filter bags (4) positioned in the turbid air cavity (200) are arranged on the filter bag fixing plate (3); the method is characterized in that: install positioning net (6) in turbid air cavity (200), positioning net (6) have a plurality of rectangular hole (61) that are the range setting of moving about freely and quickly, the lower extreme of filtering filter bag (4) passes rectangular hole (61) and extends to the below of positioning net (6), four sides of rectangular hole (61) all are connected with the outside contact of filtering filter bag (4), leave the vacancy between rectangular hole (61) and filtering filter bag (4).

2. The long bag type pulse dust collector of claim 1, wherein: the number of the rectangular holes (61) is more than that of the filter bags (4).

3. The long bag pulse precipitator of claim 1, wherein: the filter bag fixing plate (3) is provided with a first vibration device (400) for enabling the filter bag fixing plate to vibrate, and the first vibration device (400) is located in the air purifying chamber (300).

4. The long bag pulse precipitator of claim 1, wherein: the positioning net (6) is connected with a second vibration device which enables the positioning net to vibrate.

5. The long bag type pulse dust collector as claimed in claim 4, wherein: the second vibrating device comprises a cam (62) located in the turbid air cavity (200), a rotating shaft (63) rotatably connected to the turbid air cavity (200), and a vibrating motor (64) installed outside the box body (1), wherein one end of the rotating shaft (63) extends out of the box body (1) and is in transmission connection with an output shaft of the vibrating motor (64), and a vibrating matching plate (65) in sliding contact with the cam (62) is welded on the positioning net (6).

6. The long bag pulse precipitator of claim 1, wherein: the outer side of the positioning net (6) is provided with a plurality of vibration springs (66), one ends of the vibration springs (66) are fixedly connected with the positioning net (6), and the other ends of the vibration springs are fixedly connected with the cavity wall of the turbid air cavity (200).

7. The long bag type pulse dust collector of claim 1, wherein: two air inlets (201) which are arranged in bilateral symmetry are formed in the rear side surface of the ash deposition bucket (2).

8. The long bag pulse precipitator of claim 1, wherein: the box body (1) is provided with a pulse ash removal mechanism (10) for removing ash from the filter bag (4) in the air purification cavity (300).

9. The long bag pulse precipitator of claim 8, wherein: the pulse deashing mechanism (10) comprises an injection tube (101), deashing nozzles (102), an injection air bag (103) and an electromagnetic pulse valve (104), wherein the injection tube (101) is horizontally arranged in a clean air cavity (300), the bottom of the injection tube (101) is provided with a plurality of deashing nozzles (102), each deashing nozzle (102) corresponds to one filter bag (4) directly above the filter bag, one end part of the injection tube (101) is connected with the injection air bag (103) through the electromagnetic pulse valve (104), the injection air bag (103) and the electromagnetic pulse valve (104) are arranged outside a box body (1), and the electromagnetic pulse valve (104) is connected with a PLC (programmable logic controller).