Bag-type dust collector with self-cleaning device

Abstract

The utility model discloses a bag-type dust remover with a self-cleaning device, which relates to the technical field of dust removal and comprises a machine body, an air pump and an air tank are fittingly mounted on one side of the machine body, the air pump is fittingly connected with the air tank through a pulse electromagnetic valve, and a plurality of first connecting pipes are fittingly mounted on the air tank. A second electromagnetic valve is mounted on each first connecting pipe in a matched manner, a plurality of mounting rings are mounted on each first connecting pipe in a sleeving manner, two second nozzles are mounted on each mounting ring in a matched manner, first nozzles are mounted on each mounting ring in a matched manner, and the two second nozzles are arranged around the filter cloth bag; the first nozzle vertically and downwards faces an opening in the upper end of the filter cloth bag, the second nozzle faces the upper portion of the outer side of the filter cloth bag, and the first nozzle and the second nozzle are both communicated with the first connecting pipe; the filter cloth bag can be integrally cleaned through the first spray head, the second spray head and the spring air bag, so that the self-cleaning effect is effectively improved.

Description

Technical Field

[0001] The utility model relates to the technical field of dust removal, in particular to a bag dust collector with a self-cleaning device. Background Art

[0002] A bag dust collector is a device that separates dust from flue gas. A bag dust collector is also called a filtering dust collector. It is a dust removal device that uses bag filter elements made of fiber woven fabric to capture solid particles in dust-containing gas. Its working principle is that dust particles are intercepted by colliding with fibers due to inertia when they pass around the filter cloth fibers. The filter bag is made of textile filter cloth or non-textile felt, and the dust-containing gas is filtered by the filtering effect of fiber fabric. When the dust-containing gas enters the bag dust collector, large particles and high specific gravity dust settle due to gravity and fall into the ash hopper. When the gas containing finer dust passes through the filter material, the dust is retained, thereby purifying the gas.

[0003] However, current bag dust collectors generally use pulse air shock waves to self-clean the dust bags, thereby increasing the service life of the dust bags. However, when the dust bags vibrate under the action of pulse air shock waves, the dust accumulated at the upper and lower ends of the dust bags cannot be effectively shaken off, thereby reducing the filtering effect of the dust bags. Utility Model Content

[0004] In order to solve the problem in the above background technology that the dust at the upper and lower ends of the dust bag cannot be effectively shaken off, the purpose of the utility model is to provide a bag dust collector with a self-cleaning device.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a bag dust collector with a self-cleaning device, comprising a body, a ash hopper is installed on the lower side of the body, the body is connected to the inside of the ash hopper, an air inlet is installed on one side of the body, an air outlet is installed on the other side of the body, an air pump is installed on one side of the body, an air tank is installed on one side of the body, the air pump is connected to the air tank through a pulse solenoid valve, a plurality of first connecting pipes are installed on the air tank, and a second solenoid valve is installed on each of the first connecting pipes;

[0006] Each of the first connecting pipes is equipped with a plurality of self-cleaning devices, the self-cleaning devices comprising a mounting ring, the mounting ring is sleeved and mounted on the first connecting pipe, two second nozzles are equipped on the mounting ring, and the first nozzle is equipped on the mounting ring;

[0007] The two second nozzles are arranged around the filter bag, the first nozzle is vertically downward toward the upper opening of the filter bag, the second nozzle is toward the upper outer side of the filter bag, and the first nozzle and the second nozzle are both connected to the first connecting pipe;

[0008] A mounting plate is fixedly installed inside the machine body; a plurality of holes are opened on the mounting plate, a positioning ring is installed in each of the holes, and a filter bag is installed in each of the positioning rings.

[0009] Preferably, a rain shield is installed on one side of the machine body, and the rain shield is located above the gas tank.

[0010] Preferably, a bag frame is provided inside the filter bag, the filter bag is cylindrical, the upper end of the filter bag is open, the lower end of the filter bag is closed, and the upper end of the filter bag is fixedly connected to the upper end of the bag frame.

[0011] Preferably, a bracket is fixedly installed on the lower side of the machine body, and an ash discharging auger is cooperatively installed on the lower side of the ash hopper.

[0012] Preferably, a fixed frame is fixedly installed inside the machine body, and the lower end of the filter bag is sleeved inside the fixed frame and slidably matched therewith.

[0013] Preferably, the self-cleaning device further comprises a hollow plate, the hollow plate is cooperatively mounted inside the machine body, and the gas tank is connected to the hollow plate via a second connecting pipe.

[0014] Preferably, a plurality of spring airbags are mounted on the hollow plate, the spring airbags are located at the lower end of the bag frame, and a third solenoid valve is mounted on the second connecting pipe.

[0015] Preferably, a guide plate is fixedly installed inside the body, and the guide plate is arranged in cooperation with the air inlet.

[0016] Compared with the prior art, the beneficial effects of the utility model are as follows:

[0017] 1. After the bag dust collector of the utility model has been used for a period of time, the pulse solenoid valve and the second solenoid valve are opened, and the air pump is controlled to operate, so that the first nozzle and the second nozzle spray pulse gas, and the first nozzle blows pulse air shock waves toward the inside of the filter bag to make the filter bag vibrate and the surface dust layer fall off, and the second nozzle blows pulse air shock waves toward the upper end of the filter bag to make the dust on the upper end of the filter bag fall, effectively preventing the accumulation of dust on the upper end of the filter bag, thereby increasing the cleanliness of the filter bag after self-cleaning and improving the filtering effect of the dust removal bag.

[0018] 2. After the above-mentioned dust removal is completed, the utility model opens the pulse solenoid valve and the third solenoid valve, so that the spring airbag reciprocates and stretches to hit the filter bag, thereby causing the filter bag to vibrate, which can further shake off the dust at the lower end of the filter bag, and can further clean the middle and upper ends of the filter bag, thereby increasing the cleanliness of the filter bag after self-cleaning and increasing the time interval between two self-cleanings of the filter bag. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 The utility model is a basic structural schematic diagram of a bag dust collector with a self-cleaning device.

[0020] Figure 2 The utility model is a bag dust collector with a self-cleaning device Figure 1 main view.

[0021] Figure 3 The utility model is an internal cross-sectional view of a bag dust collector with a self-cleaning device.

[0022] Figure 4 The utility model is a bag dust collector with a self-cleaning device Figure 3 Enlarged view of part A.

[0023] Figure 5 The utility model is a schematic diagram of the internal structure of a bag dust collector with a self-cleaning device.

[0024] Figure 6 The utility model is a schematic diagram of the installation positions of the first nozzle and the second nozzle of a bag dust collector with a self-cleaning device.

[0025] Figure 7 The utility model is a schematic diagram of the internal structure of the filter bag of the bag dust collector with a self-cleaning device when the first nozzle and the second nozzle are blowing air.

[0026] Figure 8 The utility model is a cross-sectional view of a hollow plate and a spring airbag of a bag dust collector with a self-cleaning device.

[0027] In the figure: 101, machine body; 102, ash hopper; 103, bracket; 104, air inlet; 105, air outlet; 106, ash auger; 107, air pump; 108, air tank; 109, pulse solenoid valve; 110, rain shield; 111, second solenoid valve; 112, second connecting pipe; 113, third solenoid valve; 114, first connecting pipe; 115, mounting plate; 116, filter bag; 117, fixing frame; 118, positioning ring; 119, bag frame; 120, guide plate; 201, mounting ring; 202, first nozzle; 203, second nozzle; 204, hollow plate; 205, spring airbag. DETAILED DESCRIPTION

[0028] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0029] like Figure 1-Figure 8 As shown, a bag dust collector with a self-cleaning device provided in this embodiment includes a body 101, a ash hopper 102 is installed on the lower side of the body 101, the body 101 is connected to the inside of the ash hopper 102, an air inlet 104 is installed on one side of the body 101, an air outlet 105 is installed on the other side of the body 101, an air pump 107 is installed on one side of the body 101, and an air tank 108 is installed on one side of the body 101. The air pump 107 is connected to the air tank 108 through a pulse solenoid valve 109, and a plurality of first connecting pipes 114 are installed on the air tank 108, and each first connecting pipe 114 is installed with a second solenoid valve 111.

[0030] A plurality of self-cleaning devices 200 are installed on each first connecting pipe 114 . The self-cleaning device 200 includes a mounting ring 201 . The mounting ring 201 is sleeved and installed on the first connecting pipe 114 . Two second nozzles 203 are installed on the mounting ring 201 . A first nozzle 202 is installed on the mounting ring 201 .

[0031] Two second nozzles 203 are arranged around the filter bag 116, the first nozzle 202 is vertically downward toward the upper end opening of the filter bag 116, and the second nozzle 203 is toward the upper outer side of the filter bag 116. The first nozzle 202 and the second nozzle 203 are both connected to the first connecting pipe 114, and a mounting plate 115 is fixedly installed inside the body 101; a plurality of holes are opened on the mounting plate 115, and a positioning ring 118 is installed in each hole, and a filter bag 116 is installed in each positioning ring 118, and the positioning ring 118 is supported by high-strength rubber and is stuck in the corresponding opening.

[0032] A rain shield 110 is installed on one side of the machine body 101, and the rain shield 110 is located above the gas tank 108. A bag frame 119 is provided inside the filter bag 116. The filter bag 116 is cylindrical, with an opening at the upper end of the filter bag 116 and a closed lower end of the filter bag 116. The upper end of the filter bag 116 is fixedly connected to the upper end of the bag frame 119.

[0033] A bracket 103 is fixedly installed on the lower side of the body 101, and an ash discharge auger 106 is installed on the lower side of the ash hopper 102. The ash discharge auger is used to discharge the dust in the ash hopper 102. A fixed frame 117 is fixedly installed inside the body 101, and the lower end of the filter bag 116 is sleeved inside the fixed frame 117 and slidably cooperates with it. The sliding cooperation allows the filter bag 116 to move outside the bag frame 119.

[0034] The self-cleaning device 200 also includes a hollow plate 204, which is installed in cooperation with the inside of the machine body 101. The gas tank 108 is connected to the hollow plate 204 through the second connecting pipe 112. A plurality of spring air bags 205 are installed in cooperation with the hollow plate 204. The spring air bags 205 are connected to the inside of the hollow plate 204. The spring air bags 205 are located at the lower end of the cloth bag frame 119.

[0035] The third solenoid valve 113 is installed on the second connecting pipe 112. The spring airbag 205 is a rubber airbag, which can shrink or stretch according to the air pressure inside it. An opening is provided on the upper side of the spring airbag 205. When the third solenoid valve 113 is opened and the air pressure inside the spring airbag 205 increases, the spring airbag 205 stretches to hit the lower end of the filter bag 116. When the third solenoid valve 113 is closed and the air pressure inside the spring airbag 205 is connected to the outside, the spring airbag 205 shrinks to its initial state, so that the spring airbag 205 stretches back and forth under the action of pulse air to hit the bottom of the filter bag 116, so that the dust at the lower end of the filter bag 116 falls down, thereby increasing the cleanliness of the filter bag 116 after self-cleaning.

[0036] A guide plate 120 is fixedly installed inside the body 101, and the guide plate 120 is arranged in conjunction with the air inlet 104. The guide plate 120 first tilts the dust-laden gas to the lower side of the ash hopper 102, so that large particles of dust can be deposited first, thereby preventing large particles of dust from clogging the filter bag 116.

[0037] It should be noted that after the bag filter of the present invention has been used for a period of time, the pulse solenoid valve 109 and the second solenoid valve 111 are opened, and the air pump 107 is controlled to operate, so that the first nozzle 202 and the second nozzle 203 spray pulse gas, and the first nozzle 202 blows out a pulse air shock wave toward the inside of the filter bag 116, so that the filter bag 116 vibrates and the dust layer on the surface falls off, and the second nozzle 203 blows out a pulse air shock wave toward the upper end of the filter bag 116, so that the dust on the upper end of the filter bag 116 falls, which effectively prevents the accumulation of dust on the upper end of the filter bag 116, thereby increasing the filter bag 116. The cleanliness of the bag 116 after self-cleaning improves the filtering effect of the dust removal bag. After the above-mentioned dust removal is completed, the pulse solenoid valve 109 and the third solenoid valve 113 are opened, so that the spring airbag 205 reciprocates and strikes the filter bag 116, thereby causing the filter bag 116 to vibrate, which can further shake off the dust at the lower end of the filter bag 116, and further clean the middle and upper ends of the filter bag 116, thereby increasing the cleanliness of the filter bag 116 after self-cleaning, and increasing the time interval between two self-cleanings of the filter bag 116, so that the filtering effect of the filter bag 116 can be well maintained.

[0038] It should be further noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprises" or any other variations thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0039] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A bag dust collector with a self-cleaning device, comprising a body (101), a ash hopper (102) is mounted on the lower side of the body (101), the body (101) and the ash hopper (102) are internally connected, an air inlet (104) is mounted on one side of the body (101), and an air outlet (105) is mounted on the other side of the body (101), characterized in that: An air pump (107) is installed on one side of the machine body (101), and an air tank (108) is installed on one side of the machine body (101). The air pump (107) is connected to the air tank (108) via a pulse electromagnetic valve (109). A plurality of first connecting pipes (114) are installed on the air tank (108), and each of the first connecting pipes (114) is installed with a second electromagnetic valve (111). A plurality of self-cleaning devices (200) are mounted on each of the first connecting pipes (114), the self-cleaning devices (200) comprising a mounting ring (201), the mounting ring (201) being sleeved and mounted on the first connecting pipe (114), two second nozzles (203) being mounted on the mounting ring (201), and a first nozzle (202) being mounted on the mounting ring (201); The two second nozzles (203) are arranged around the filter bag (116), the first nozzle (202) is vertically downward toward the upper opening of the filter bag (116), and the second nozzle (203) is toward the upper outer side of the filter bag (116), and the first nozzle (202) and the second nozzle (203) are both connected to the first connecting pipe (114); A mounting plate (115) is fixedly installed inside the machine body (101); a plurality of holes are provided on the mounting plate (115); a positioning ring (118) is installed in each of the holes; and a filter bag (116) is installed in each of the positioning rings (118).

2. The bag dust collector with a self-cleaning device according to claim 1, characterized in that: A rain shield (110) is mounted on one side of the machine body (101), and the rain shield (110) is located above the gas tank (108).

3. The bag dust collector with a self-cleaning device according to claim 1, characterized in that: A bag frame (119) is provided inside the filter bag (116); the filter bag (116) is cylindrical; the upper end of the filter bag (116) is open, the lower end of the filter bag (116) is closed, and the upper end of the filter bag (116) is fixedly connected to the upper end of the bag frame (119).

4. The bag filter with a self-cleaning device according to claim 1, characterized in that: A bracket (103) is fixedly mounted on the lower side of the machine body (101), and an ash discharge auger (106) is cooperatively mounted on the lower side of the ash hopper (102).

5. The bag dust collector with a self-cleaning device according to claim 1, characterized in that: A fixed frame (117) is fixedly installed inside the machine body (101), and the lower end of the filter bag (116) is sleeved inside the fixed frame (117) and slidably matched therewith.

6. The bag dust collector with a self-cleaning device according to claim 1, characterized in that: The self-cleaning device (200) further comprises a hollow plate (204), wherein the hollow plate (204) is mounted in cooperation with the interior of the machine body (101), and the gas tank (108) is connected to the hollow plate (204) via a second connecting pipe (112).

7. The bag filter with a self-cleaning device according to claim 6, characterized in that: A plurality of spring airbags (205) are mounted on the hollow plate (204), and the spring airbags (205) are located at the lower end of the bag frame (119). A third solenoid valve (113) is mounted on the second connecting pipe (112).

8. The bag dust collector with a self-cleaning device according to claim 1, characterized in that: A guide plate (120) is fixedly installed inside the machine body (101), and the guide plate (120) is arranged in coordination with the air inlet (104).

Images