Powder hopper jet cleaning device for baghouse dust collectors
By injecting intermittent high-pressure airflow into the ash hopper through a jet cleaning device, the problem of unsatisfactory ash hopper cleaning effect in baghouse dust collectors is solved, achieving a highly efficient and non-damaging cleaning effect.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- XIAN LVDING ENVIRONMENTAL PROTECTION TECH CO LTD
- Filing Date
- 2025-07-28
- Publication Date
- 2026-07-03
AI Technical Summary
The dust removal effect of existing baghouse dust collectors is not ideal, especially the high-adhesion dust layer is difficult to remove effectively, and the traditional vibration dust removal method has significant energy attenuation and limited effect.
The system employs a jet-blowing device that uses compressed air, controlled by an electromagnetic pulse valve, to inject intermittent high-pressure airflow into the ash hopper. This utilizes millisecond-level high-pressure explosive force to strip away the dust. The jet-blowing pipeline is designed with multiple vertical jet-blowing sections and annular connecting sections to ensure wide airflow coverage without clogging.
It achieves efficient dust removal from the ash hopper, with significant dust removal effect, simple structure, no damage to the ash hopper, and avoids the energy attenuation problem of mechanical vibration dust removal.
Smart Images
Figure CN224442445U_ABST
Abstract
Description
Technical Field
[0001] This application relates to the field of baghouse dust collection technology, and in particular to a powder hopper jet cleaning device for baghouse dust collectors. Background Technology
[0002] Baghouse dust collectors, also known as bag filters, use filter bags made of woven filter cloth or non-woven felt. When dust-laden gas enters the baghouse dust collector, larger, heavier dust particles settle due to gravity and fall into the ash hopper. Gas containing finer dust particles passes through the filter media, where the dust is trapped, thus purifying the gas. After a period of use, as dust accumulates on the filter media surface, the resistance of the dust collector increases accordingly. When the pressure difference across the filter media becomes too large, some fine dust particles already attached to the media can be forced through, reducing the dust collector's efficiency. Furthermore, excessively high resistance in the dust collector can significantly reduce the airflow of the dust collection system. Therefore, once the resistance of the dust collector reaches a certain value, the filter bags must be cleaned promptly. Existing filter bag cleaning technologies are relatively mature. However, after a period of use, dust accumulation not only forms on the filter bags but also often adheres to the walls of the ash hopper inside the dust collector. If this dust is not effectively treated, it can easily clog the ash hopper, causing significant inconvenience to the normal operation of the dust collector. Currently, vibration is commonly used to remove accumulated dust from the ash hopper. However, this vibration cleaning method not only has high requirements for the installation of the ash hopper but also relies on mechanical force to transfer energy. The energy attenuation is significant during the process of vibration spreading outward from the vibration source, and its ability to break down highly adhesive dust layers is limited. Therefore, this method is not ideal for the actual cleaning effect on the ash hopper. Utility Model Content
[0003] This application provides a powder hopper jet cleaning device for baghouse dust collectors, which can effectively solve some problems existing in the dust hopper cleaning process of existing baghouse dust collectors.
[0004] The above-mentioned objective of this application is achieved through the following technical solution:
[0005] A powder hopper jet cleaning device for a bag filter includes an air tank located outside the dust collector hopper. The air inlet of the air tank is connected to a compressed air supply pipeline within the plant, and the air outlet of the air tank is connected to a jet cleaning pipeline. An electromagnetic pulse valve is installed on the jet cleaning pipeline.
[0006] The jetting pipe has multiple air outlets, all of which extend to the inside of the dust collector hopper. The jetting pipe can jet compressed air into the dust collector hopper through its multiple air outlets.
[0007] Furthermore, the jetting pipe includes a jetting section and a connecting section. The connecting section is arranged in a ring outside the dust collector hopper. One side of the connecting section is connected to an air inlet section and the two are interconnected. The end of the air inlet section away from the connecting section is connected to the air outlet of the air tank. The electromagnetic pulse valve is installed on the air inlet section.
[0008] The number of the blowing sections is not less than three, and all of the blowing sections are vertically installed on the connecting section, and all of the blowing sections are connected to the connecting section; the end of the blowing section away from the connecting section is fixedly inserted into the side wall of the dust collector hopper, and the axis of the blowing section is perpendicular to the outer side wall of the dust collector hopper.
[0009] Furthermore, the port face of the jetting section located inside the dust collector hopper is an inclined port face that is biased downwards.
[0010] Furthermore, a shielding part is fixedly provided on the upper side of the port of the jet blowing section located inside the dust collector hopper.
[0011] Furthermore, the air bag is fixedly installed on the bracket, and the bracket is fixedly installed on the outer wall of the dust collector hopper.
[0012] Furthermore, a pressure gauge is installed on the air bag.
[0013] Furthermore, a drain pipe with a drain valve is installed at the bottom of the air bag.
[0014] In summary, this application includes at least one of the following beneficial technical effects:
[0015] This application utilizes compressed air controlled by an electromagnetic pulse valve to generate intermittent high-pressure airflow into the dust collector hopper through a jetting pipe. These pulsed airflows, with their millisecond-level high-pressure bursting force, can quickly and efficiently remove dust from the dust collector hopper. Compared with traditional vibration cleaning equipment, the jetting device of this application is not only simple in structure and has a large impact force on dust, but also has a significant cleaning effect and does not cause mechanical damage to the hopper. Attached Figure Description
[0016] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0017] Figure 1 This is a schematic diagram of the overall structure of this application;
[0018] Figure 2 yes Figure 1 A cross-sectional view at point A in the middle.
[0019] Reference numerals in the attached drawings: 1. Dust collector hopper; 2. Air manifold; 3. Pulse jet pipe; 31. Pulse jet section; 32. Connecting section; 33. Air inlet section; 4. Electromagnetic pulse valve; 5. Shielding part; 6. Support; 7. Pressure gauge; 8. Drain pipe. Detailed Implementation
[0020] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions in the embodiments of this application are described clearly and completely below. Obviously, the described embodiments are only some embodiments of this application, not all embodiments. Based on the embodiments in this application, all other embodiments obtained by those skilled in the art without creative effort are also within the scope of protection of this application.
[0021] like Figure 1 and Figure 2 As shown, this application discloses a powder hopper jet cleaning device for a baghouse dust collector, which includes an air tank 2 located outside the dust collector hopper 1. The air inlet of the air tank 2 is connected to a compressed air supply pipeline inside the plant, and the air outlet of the air tank 2 is connected to a jet cleaning pipe 3. An electromagnetic pulse valve 4 is installed on the jet cleaning pipe 3. The jet cleaning pipe 3 has multiple air outlets, and the multiple air outlets of the jet cleaning pipe 3 extend to the inside of the dust collector hopper 1. The jet cleaning pipe 3 can jet compressed air into the dust collector hopper 1 through its multiple air outlets.
[0022] In the above embodiments, the generation of compressed air mainly relies on air compressors. Air compressors, especially piston or screw compressors, have periodic pulses in their exhaust during operation. The air tank 2, located on one side of the dust collector hopper 1, serves as a gas buffer container. Its volume buffer absorbs pressure fluctuations in compressed air, preventing damage to air-using equipment caused by sudden pressure changes. The jet pipe 3 is equipped with an electromagnetic pulse valve 4. When air consumption suddenly increases, the compressed air stored in the air tank can temporarily supplement the air supply, preventing a sudden drop in system pressure. Conversely, during periods of low air consumption, excess gas is stored, reducing frequent compressor starts and stops and extending equipment lifespan.
[0023] The air outlet of the air tank 2 in this application is connected to the jet pipe 3. During use, compressed air can be supplied to the jet pipe 3. Multiple air outlets on the jet pipe 3 are evenly installed around the dust collector hopper 1. Compressed air can be released into the dust collector hopper 1 through these multiple air outlets. An electromagnetic pulse valve 4 is also installed on the jet pipe 3 in this application. The electromagnetic pulse valve 4 is a fast automatic opening and closing valve based on electromagnetic induction and air pressure difference. Its core working principle is to trigger a magnetic force to drive the diaphragm movement through an electrical signal, thereby achieving high pressure. The instantaneous release and cut-off of gas is a prior art valve. Through the electromagnetic pulse valve 4 installed on the jet pipe 3, compressed air can be controlled by the electromagnetic pulse valve 4 to generate intermittent high-pressure airflow into the dust collector hopper 1 through the jet pipe 3. These pulse airflows, with their millisecond-level high-pressure bursting force, can quickly and efficiently remove the dust from the dust collector hopper 1. Compared with traditional vibration cleaning equipment, the jet cleaning device of this application is not only simple in structure and has a large impact force on dust, but also has a significant cleaning effect and will not cause mechanical damage to the hopper.
[0024] Furthermore, such as Figure 1 and Figure 2 As shown, the jet pipe 3 includes a jet section 31 and a connecting section 32. The connecting section 32 is distributed in a ring outside the dust collector hopper 1. One side of the connecting section 32 is connected to the air inlet section 33 and the two are interconnected. The end of the air inlet section 33 away from the connecting section 32 is connected to the air outlet of the air tank 2. The electromagnetic pulse valve 4 is installed on the air inlet section 33.
[0025] There are no fewer than three jetting sections 31. All jetting sections 31 are vertically installed on the connecting section 32, and all jetting sections 31 are connected to the connecting section 32. The end of the jetting section 31 away from the connecting section 32 is fixedly inserted into the side wall of the dust collector hopper 1, and the axis of the jetting section 31 is perpendicular to the outer side wall of the dust collector hopper 1.
[0026] In the above embodiments, the connecting section 32 of this application is located outside the dust collector hopper 1. It is mainly used to evenly distribute the compressed air output from the air tank 2 to each of the blowing sections 31. The axis of the blowing section 31 is perpendicular to the outer wall of the dust collector hopper 1. This reduces mutual interference between the blowing sections 31 when they enter the dust collector hopper 1, and allows the compressed air at the blowing point to cover as much area as possible within the dust collector hopper 1. The air inlet section 33 of this application is mainly responsible for connecting the connecting section 32 and the air outlet of the air tank 2. This allows the compressed air output from the air tank 2 to be smoothly transported through the connecting section 32 to the multiple blowing sections 31 around the dust collector hopper 1. The air inlet section 33 of this application is equivalent to the main air inlet pipe of the blowing pipe 3. By installing the electromagnetic pulse valve 4 on the air inlet section 33, the effect of simultaneously supplying pulsed airflow to multiple blowing sections 31 can be achieved.
[0027] Furthermore, the port face of the blowing section 31 located inside the dust collector hopper 1 is an inclined port face that is biased downwards.
[0028] In the above embodiments, by setting the cross-section of the air outlet port of the blowing section 31 in the manner described above, the risk of dust falling into the blowing section 31 from inside the dust collector can be reduced.
[0029] Furthermore, such as Figure 2 As shown, the blowing section 31 is located inside the dust collector hopper 1 and has a shielding part 5 fixed on the upper side of the port.
[0030] In the above embodiments, since a shielding part 5 is provided above the air outlet end of the blowing section 31 of the blowing pipe 3 to prevent dust from falling into the blowing pipe 3, when the blowing pipe 3 is not working, the dust in the dust collector hopper 1 is not likely to fall into the blowing section 31, which can effectively prevent the nozzle of the blowing section 31 of the blowing pipe 3 from being blocked by dust.
[0031] Furthermore, such as Figure 1 As shown, the air tank 2 is fixedly installed on the bracket 6, and the bracket 6 is fixedly installed on the outer wall of the dust collector hopper 1.
[0032] In the above embodiments, the bracket 6 installed on the dust collector hopper 1 can provide an installation base for the air tank 2, so that it can be stably set on one side of the dust collector hopper 1.
[0033] Furthermore, such as Figure 1 As shown, a pressure gauge 7 is installed on the air tank 2.
[0034] In the above embodiments, the pressure gauge 7 can monitor the air pressure status inside the air bag 2 in real time to ensure the safety of the air bag 2 during use.
[0035] Furthermore, such as Figure 1 As shown, a drain pipe 8 with a drain valve is installed at the bottom of the air tank 2.
[0036] In the above embodiments, the air contains water vapor. After being compressed by the air compressor, its temperature rises. Upon entering the air tank 2, the temperature drops (typically 20–30°C lower than the ambient temperature), causing the water vapor to rapidly condense into liquid water and deposit at the bottom. Long-term accumulation of this condensate not only corrodes the air tank 2, reducing its lifespan, but also occupies its effective volume, leading to a decrease in air storage capacity. Furthermore, when the condensate is sprayed into the dust collector hopper 1 with the compressed air, it can cause localized caking, hindering dust removal. The main purpose of this application in providing a drain pipe 8 with a drain valve at the bottom of the air tank 2 is to facilitate regular ventilation of the condensate within the air tank 2, ensuring equipment lifespan and system stability.
[0037] Furthermore, the electromagnetic pulse valve 4 is a right-angle electromagnetic pulse valve 4.
[0038] In the above embodiments, the right-angle electromagnetic pulse valve 4 has a 90° right-angle structure at its inlet and outlet, which is suitable for connecting the vertically upward air outlet of the air tank 2 and the horizontal air inlet section 33 of the blowpipe.
[0039] The implementation principle of this embodiment is as follows: The air outlet of the air tank 2 is connected to the jet pipe 3. In use, compressed air can be supplied to the jet pipe 3. Multiple jet sections 31 on the jet pipe 3 are evenly installed around the dust collector hopper 1. Compressed air can be released into the dust collector hopper 1 through the multiple jet sections 31 on the jet pipe 3. An electromagnetic pulse valve 4 is also installed on the jet pipe 3 of this application. Under the control of the electromagnetic pulse valve 4, the compressed air can generate intermittent high-pressure airflow into the dust collector hopper 1 through the jet pipe 3. These pulse airflows can quickly and efficiently remove the dust from the dust collector hopper 1 with millisecond-level high-pressure bursting force. Compared with the traditional vibration cleaning equipment, after adopting the above technical solution, the cleaning effect of the equipment of this application on the dust collector hopper 1 is significantly better than that of the cleaning device of the traditional bag filter dust collector. The jet cleaning device of this application is not only simple in structure and has a large impact force on dust, but also has a significant cleaning effect and will not cause mechanical damage to the hopper.
[0040] The nozzle of the blowing section 31 of the blowing pipe 3 in this application is an inclined nozzle facing downwards, and a shielding part 5 is provided above it. In this way, when the blowing pipe 3 is not working, the dust in the dust collector hopper 1 is not likely to fall into the blowing pipe 3, which can effectively prevent the nozzle of the blowing section 31 of the blowing pipe 3 from being blocked by dust.
[0041] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this application, and are not intended to limit them. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this application.
Claims
1. A powder bin injection device for a baghouse, characterized by: It includes an air bag (2) located outside the dust collector hopper (1), the air inlet of the air bag (2) is connected to the compressed air supply pipeline in the plant, the air outlet of the air bag (2) is connected to a jet pipe (3), and an electromagnetic pulse valve (4) is installed on the jet pipe (3). The blowing pipe (3) has multiple air outlets, and the multiple air outlets of the blowing pipe (3) extend to the inside of the dust collector hopper (1). The blowing pipe (3) can blow compressed air into the dust collector hopper (1) through the multiple air outlets on it.
2. The powder hopper jet cleaning device for a bag filter according to claim 1, characterized in that: The jetting pipe (3) includes a jetting section (31) and a connecting section (32). The connecting section (32) is arranged in a ring outside the dust collector hopper (1). One side of the connecting section (32) is connected to an air inlet section (33) and the two are interconnected. The end of the air inlet section (33) away from the connecting section (32) is connected to the air outlet of the air tank (2). The electromagnetic pulse valve (4) is installed on the air inlet section (33). The number of the blowing sections (31) is not less than three, and the multiple blowing sections (31) are all vertically installed on the connecting section (32), and all the blowing sections (31) are connected to the connecting section (32); the end of the blowing section (31) away from the connecting section (32) is fixedly inserted into the side wall of the dust collector hopper (1), and the axis of the blowing section (31) is perpendicular to the outer side wall of the dust collector hopper (1).
3. The powder tank injection device for a bag-type dust collector according to claim 2, characterized in that: The port face of the jetting section (31) located inside the dust collector hopper (1) is an inclined port face that is biased downwards.
4. The powder tank injection device for a bag-type dust collector according to claim 3, characterized in that: The blowing section (31) is located inside the dust collector hopper (1) and is fixedly equipped with a shielding part (5) on the upper side of the port.
5. The powder tank injection device for a cloth bag dust collector according to any one of claims 1 to 4, characterized in that: The air bag (2) is fixedly installed on the bracket (6), and the bracket (6) is fixedly installed on the outer wall of the dust collector hopper (1).
6. The powder tank injection device for a bag filter according to claim 5, characterized by: A pressure gauge (7) is installed on the air bag (2).
7. The powder tank injection device for a bag-type dust collector according to claim 5, characterized in that: The bottom of the air bag (2) is equipped with a drain pipe (8) with a drain valve.
8. The powder tank injection device for a cloth bag dust collector according to any one of claims 1 to 4, characterized in that: The electromagnetic pulse valve (4) is a right-angle electromagnetic pulse valve (4).