Automatic cleaning device and method for dust removal filter bag

Abstract

The invention discloses an automatic cleaning device and method for dust removal filter bags, and relates to the technical field of tobacco production, the cleaning device comprises a water tank, a light transmittance sensor, a conductivity sensor and a tool structure, the light transmittance sensor and the conductivity sensor are arranged in the water tank, and the tool structure can conduct adaptive tensioning installation on the dust removal filter bags of different sizes; according to the cleaning method, the cleaning process is judged and guided through monitoring numerical values of the conductivity and the light transmittance of the cleaning water. According to the cleaning device, the dust removal filter bag is cleaned in a water washing, high-pressure flushing and ultrasonic cleaning combined mode, tobacco dust attached to the dust removal filter bag can be well removed, the dust removal filter bag can be repeatedly used, and control over the production cost and achievement of resource and environment friendliness are facilitated; according to the cleaning method, the cleaning work of the dust removal filter bag is guided and controlled through monitoring of the light transmittance and the conductivity of the liquid in the box body, the cleaning effect of the dust removal filter bag can be well guaranteed, and then normal operation and production safety of tobacco production are guaranteed.

Description

Technical Field

[0001] The invention relates to the technical field of tobacco production, and in particular to a device and method for cleaning a dust removal filter bag. Background Art

[0002] During the tobacco production process, flammable and explosive tobacco dust is inevitably generated. In order to ensure the normal and safe production, the existing technology mostly uses pulse bag dust collectors for process dust removal, that is, using dust filter bags to intercept tobacco dust. At the same time, tobacco dust will accumulate on the dust filter bags during the production process. Therefore, the pulse valve needs to be opened periodically during production, and compressed air needs to be used to pulse spray the dust filter bags to remove most of the tobacco dust on the dust filter bags.

[0003] However, in actual production, as the use time of dust filter bags increases, the amount of tobacco dust still attached to the dust filter bags after pulse spraying gradually increases, and the compressed air pressure used for pulse spraying also needs to be gradually increased accordingly. When the compressed air pressure increases to a certain value (generally 1500pa) and still cannot eliminate the internal and external pressure difference of the dust filter bags, new dust filter bags need to be replaced. Because dust filter bags have high explosion-proof safety requirements, they need to be made of flame-retardant and anti-static filter materials, which are relatively expensive, resulting in high costs for replacing dust filter bags, which is not conducive to the control of production costs; at the same time, periodic replacement of dust filter bags in production is not conducive to the full utilization of resources and environmental protection.

[0004] Through prior art search, there are the following known technical solutions: Prior art 1: Automatic cleaning equipment for dust filter bags Application number: CN202311464064.2, application date: 2023-11-06, publication (announcement) date: 2023-12-22.

[0005] Prior art 1 relates to the technical field of dust collectors, and specifically to an automatic cleaning device for dust filter bags. An automatic cleaning device for dust filter bags includes a bag dust collector and a cleaning mechanism. The bag dust collector includes a dust collector housing and a plurality of filter bags. The cleaning mechanism includes a first support frame, a reel, a cleaning assembly and a support assembly. The first support frame can be slidably arranged on the upper end of the dust collector housing. The reel can be rotatably arranged on the first support frame around its own axis, and the cleaning assembly is used to clean the filter bag wound on the reel. The support assembly includes a magnetic plate and a supporting cylinder, and the supporting cylinder includes a magnetic column, two supporting arc plates and at least two springs. The present invention provides an automatic cleaning device for dust filter bags to solve the problem that when the existing dust filter bag cleaning device pulls the filter bag out of the dust collector, the friction between the filter bag and the housing of the dust collector easily causes damage to the filter bag.

[0006] However, the dust filter bag of the prior art 1 is longitudinally mounted on the supporting cylinder, which is inconvenient to install for dust filter bags of larger sizes. In addition, the bagged dust filter bag is mounted on the supporting cylinder without a limit, which makes it easy for the dust filter bag to shift during the cleaning process, affecting the cleaning effect of the dust filter bag. At the same time, the prior art 1 only cleans the dust filter bag by immersion and high-pressure spraying, and the cleaning process is manually determined. There are problems such as incomplete cleaning and difficulty in controlling the consistency of cleaning effects of different batches of dust filter bags, and the cleaning effect cannot be well guaranteed.

[0007] Prior art 2: an automatic filter bag cleaning system Application number CN202311461168.8, application date 2023-11-06, publication (announcement) date: 2023-12-26.

[0008] Prior art 2 provides an automatic filter bag cleaning system, which belongs to the technical field of granulation towers. The automatic filter bag cleaning system arranges a water pipe on the inner side of the top of the cleaning chamber of the purification device of the urea granulation tower, and a nozzle is installed on the water pipe. The water mist sprayed by the nozzle is circular. The nozzle is deflected at a certain angle to spray water, which can cover a certain area of ​​the filter bag. The water flows into the filter bag from the filter bag opening, flows along the surface of the filter bag and soaks the filter bag. The material bonded to the outside of the filter bag melts and automatically falls off after it meets water. The present invention solves the technical problem that a large amount of adhesives are bonded to the bag wall of the dust removal filter bag, and it is difficult to peel off or detach from the bag wall of the dust removal filter bag simply by relying on the dust or the weight of the adhesive itself.

[0009] However, the prior art 2 is aimed at filter bags for filtering water-soluble dust, and mainly relies on dissolution cleaning, immersion cleaning, and atomized water sprayed from a nozzle to clean the filter bags. The spray water pressure is also relatively small, and it is not suitable for cleaning dust removal filter bags for filtering non-water-soluble tobacco dust.

[0010] Through the above search, it is found that the above technical solutions do not affect the novelty of the present invention; and the mutual combination of the above prior arts does not destroy the creativity of the present invention. Summary of the invention

[0011] In order to avoid the above-mentioned deficiencies in the prior art, the present invention provides an automatic cleaning device and method for dust filter bags.

[0012] The present invention adopts the following technical solution to solve the technical problem: an automatic cleaning device for dust filter bags, comprising a water tank, wherein the top and bottom of the water tank are respectively connected with a water inlet pipe and a drain pipe, wherein the water inlet pipe is connected with a water source, and further comprising a tooling structure, a conductivity sensor and a transmittance sensor; The tooling structure is located in the upper part of the water tank and is used to install the dust filter bag, and the tooling structure drives the dust filter bag to rotate around the horizontal rotating shaft; The conductivity sensor and the transmittance sensor are used to measure the conductivity and transmittance of the liquid in the water tank respectively.

[0013] Further, the tooling structure includes a driving machine, a mounting shaft, a turntable and a filter bag holder; The mounting shaft, turntable and filter bag holder are located in the water tank; the mounting shaft is rotatably mounted and connected to the side wall of the water tank, and one end thereof extends out of the water tank and is mounted and connected to the output end of the driving machine; the turntable is fixedly connected to the mounting shaft, and the filter bag holder for tensioning and limiting the dust filter bag is installed thereon.

[0014] Furthermore, the rotating disk is in a disc structure, coaxially arranged with the mounting axis, and is provided with mounting holes; It also includes at least two installation rods serving as the filter bag holders, one end of each installation rod being detachably installed in the installation hole, and the dust filter bag is tensionedly arranged on each of the installation rods.

[0015] Furthermore, one end of the installation shaft extending out of the water tank is provided with a pulley structure, and is installed and connected to the output end of the driving machine through a transmission belt tensioned on the pulley structure.

[0016] Furthermore, a spray structure is provided; The spray structure includes a high-pressure spray pump and a high-pressure spray head; the high-pressure spray head is fixedly installed, located above the dust filter bag, and connected to a water source through a spray pipe; the high-pressure spray pump is connected to the spray pipe.

[0017] Furthermore, the high-pressure spray head is a straight pipe structure with a plurality of nozzles, and the nozzles are evenly arranged toward the dust filter bag.

[0018] Furthermore, a control module and a liquid inlet and outlet module are also provided; The inlet and outlet liquid module comprises a liquid level meter, an electric water inlet valve and an electric water drain valve which are in data communication with the control module; the liquid level meter is arranged in the water tank, and the electric water inlet valve and the electric water drain valve are respectively connected to the water inlet pipe and the water drain pipe; The control module is in data communication with the conductivity sensor, the transmittance sensor, the driving machine, the high-pressure spray pump, the electric water inlet valve and the electric drain valve.

[0019] Furthermore, it also includes an ultrasonic cleaning module; The ultrasonic cleaning module is arranged at the bottom of the water tank, and its action direction is toward the dust removal filter bag.

[0020] A method for automatically cleaning a dust filter bag, using the above-mentioned automatic cleaning device for cleaning a dust filter bag to clean the dust filter bag, comprises the following steps: The first step is to tighten the dust filter bag and fix it on the filter bag frame; The second step is to add water into the water tank through the water inlet pipe, so that the liquid level submerges the lower half of the dust filter bag, and the dust filter bag is partially extended above the liquid level, and then stop adding water; The third step is to start the driving machine and the high-pressure spray pump to enter the cleaning mode; The driving machine drives the mounting shaft and the rotating disk and filter bag frame fixed thereon to rotate, and the dust filter bag installed on the filter bag frame rotates synchronously with it, so that each part of the dust filter bag periodically performs water inflow and water outflow actions; The high-pressure water flow is sprayed from the high-pressure spray head to the dust filter bag under the action of the high-pressure spray pump, and the part of the dust filter bag located above the liquid surface is high-pressure washed for M 01 ; In the fourth step, the transmittance sensor measures the transmittance X of the liquid in the water tank: If X≤X 01 , the driving machine and the high-pressure spray pump are stopped, and then the liquid in the water tank is discharged through the drain pipe, and the third step is performed again; If X>X 01 , then proceed to step 5; In the fifth step, the conductivity sensor measures the conductivity σ of the liquid in the water tank: If σ≥σ 01 , the driving machine and the high-pressure spray pump are stopped, and then the liquid in the water tank is discharged through the drain pipe, and the third step is performed again; If σ<σ 01 , then start the ultrasonic cleaning module to ultrasonically clean the dust filter bag for M 02 , then execute step 6; Step 6: The transmittance sensor measures the transmittance T of the liquid in the water tank: If T≤T 02 , the driving machine and the high-pressure spray pump are stopped, and then the liquid in the water tank is discharged through the drain pipe, and the third step is performed again; If T>T 02 , then execute step 7; In the seventh step, the conductivity sensor measures the conductivity σ of the liquid in the water tank: If σ≥σ 02 , the driving machine and the high-pressure spray pump are stopped, and then the liquid in the water tank is discharged through the drain pipe, and the third step is performed again; If σ<σ 02 , the driving machine and the high-pressure spray pump are stopped, and then the liquid in the water tank is discharged through the drain pipe to complete the cleaning.

[0021] The present invention provides a dust filter bag automatic cleaning device and method, which has the following beneficial effects: 1. The automatic cleaning device for dust filter bags of the present invention cleans the dust filter bags by combining water washing, high-pressure flushing and ultrasonic cleaning, which can better remove tobacco dust attached to the dust filter bags, so as to achieve the reuse of the dust filter bags, which is beneficial to the control of production costs and the realization of resource and environmental friendliness.

[0022] 2. The automatic cleaning method of the dust filter bag of the present invention controls the cleaning work of the dust filter bag by monitoring the light transmittance and conductivity of the liquid in the box, which can better ensure the cleaning effect of the dust filter bag and thus ensure the normal progress and production safety of tobacco production.

[0023] 3. The present invention has a simple structure and is easy to use. It can be equipped with a control module and an inlet and outlet liquid module to automatically clean the dust filter bag. It has good practicality and meets the needs of actual production. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a structural schematic diagram of the automatic cleaning device for dust filter bags of the present invention; Figure 2 The present invention is a flow chart of the automatic cleaning method of the dust filter bag.

[0025] In the figure: 1. Water tank, 11. Water inlet pipe, 12. Drain pipe; 2. Tooling structure, 21. Driving motor, 22. Mounting shaft, 23. Turntable, 24. Filter bag rack; 3. Conductivity sensor; 4. Spraying structure, 41. High-pressure spraying pump, 42. High-pressure spraying head; 5. Liquid inlet and outlet module, 51. Liquid level meter, 52. Electric water inlet valve, 53. Electric drain valve; 6. Transmittance sensor; 7. Ultrasonic cleaning module. DETAILED DESCRIPTION

[0026] In order to make the purpose, technical solution and advantages of the embodiments of the present invention clearer, the technical solution in the embodiments of the present invention will be clearly and completely described below in combination with the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0027] An automatic cleaning device for dust filter bags, such as Figure 1 As shown, the structural relationship is as follows: it includes a water tank 1, the top and bottom of the water tank 1 are respectively connected with a water inlet pipe 11 and a drain pipe 12, the water inlet pipe 11 is connected to a water source, and also includes a tooling structure 2, a conductivity sensor 3 and a transmittance sensor 6; The tooling structure 2 is located at the upper part of the water tank 1 and is used to install the dust filter bag, and the tooling structure 2 drives the dust filter bag to rotate around the horizontal rotating shaft; The conductivity sensor 3 and the transmittance sensor 6 are used to measure the conductivity and transmittance of the liquid in the water tank 1 respectively.

[0028] Preferably, the tooling structure 2 includes a driving machine 21, a mounting shaft 22, a rotating disk 23 and a filter bag holder 24; The mounting shaft 22, the turntable 23 and the filter bag holder 24 are located in the water tank 1; the mounting shaft 22 is rotatably mounted on the side wall of the water tank 1, and one end thereof extends out of the water tank 1 and is mounted on the output end of the driving machine 21; the turntable 23 is fixedly connected to the mounting shaft 22, and a filter bag holder 24 for tensioning and limiting the dust filter bag is installed thereon.

[0029] Preferably, the turntable 23 is a disc structure, coaxially arranged with the mounting shaft 22, and has various mounting holes formed thereon; It also includes at least two mounting rods serving as filter bag holders 24, one end of the mounting rods being detachably mounted in the mounting holes, and the dust filter bags being tensionedly arranged on the respective mounting rods.

[0030] During actual setting, the number and installation positions of the installation rods installed on the turntable 23 can be adjusted according to the size of the dust filter bag and installation requirements.

[0031] Preferably, one end of the installation shaft 22 extending outside the water tank 1 is provided with a pulley structure, and is installed and connected to the output end of the driving machine 21 through a transmission belt tensioned on the pulley structure.

[0032] Preferably, a spray structure 4 is also provided; The spray structure includes a high-pressure spray pump 41 and a high-pressure spray head 42; the high-pressure spray head 42 is fixedly installed above the dust filter bag and connected to the water source through a spray pipe; the high-pressure spray pump 41 is connected to the spray pipe.

[0033] Under the action of the high-pressure spray pump 41, the high-pressure water flow is sprayed from the high-pressure spray head 42 toward the dust filter bag, so as to perform high-pressure washing on the portion of the dust filter bag located above the level of the washing water.

[0034] Preferably, the high-pressure spray head 42 is a straight pipe structure with multiple nozzles, and the nozzles are evenly distributed toward the dust filter bag.

[0035] Preferably, a control module and a liquid inlet and outlet module 5 are also provided; The liquid inlet and outlet module 5 includes a liquid level meter 51, an electric water inlet valve 52 and an electric drain valve 53 which are connected to the control module data; the liquid level meter 51 is arranged in the water tank 1, and the electric water inlet valve 52 and the electric drain valve 53 are connected to the water inlet pipe 11 and the drain pipe 12 respectively; The control module is in data communication with the conductivity sensor 3 , the transmittance sensor 6 , the driving machine 21 , the high-pressure spray pump 41 , the electric water inlet valve 52 and the electric drain valve 53 .

[0036] The control module controls the opening and closing of the electric water inlet valve 52 and the electric drain valve 53 according to the liquid level height measured by the liquid level meter 51 to adjust the liquid level in the water tank 1 .

[0037] Preferably, it also includes an ultrasonic cleaning module 7; The ultrasonic cleaning module 7 is arranged at the bottom of the water tank 1, and its action direction is toward the dust removal filter bag.

[0038] like Figure 2 As shown, a method for automatically cleaning a dust filter bag, using the above-mentioned automatic cleaning device for cleaning a dust filter bag to clean the dust filter bag, includes the following process: The first step is to tighten the dust filter bag and install it on the filter bag frame 24 to fix it; The second step is to feed water into the water tank 1 through the water inlet pipe 11, so that the liquid level submerges the lower half of the dust filter bag, and the dust filter bag is partially extended above the liquid level, and then stop feeding water; The third step is to start the driving machine 21 and the high-pressure spray pump 41 to enter the cleaning mode; The driving machine 21 drives the mounting shaft 22 and the rotating disk 23 and the filter bag frame 24 fixed thereon to rotate, and the dust filter bag installed on the filter bag frame 24 rotates synchronously with it, so that each part of the dust filter bag periodically performs water inflow and water outflow actions; The high-pressure water flow is sprayed from the high-pressure spray head 42 to the dust filter bag under the action of the high-pressure spray pump 41, and the part of the dust filter bag located above the liquid surface is high-pressure washed for a period of M. 01 ; In the fourth step, the transmittance sensor 6 measures the transmittance X of the liquid in the water tank 1: If X≤X 01 , the driving machine 21 and the high-pressure spray pump 41 are stopped, and then the liquid in the water tank 1 is discharged through the drain pipe 12, and the third step is performed again; If X>X 01 , then proceed to step 5; Step 5: The conductivity sensor 3 measures the conductivity σ of the liquid in the water tank 1: If σ≥σ 01 , the driving machine 21 and the high-pressure spray pump 41 are stopped, and then the liquid in the water tank 1 is discharged through the drain pipe 12, and the third step is performed again; If σ<σ 01 , the ultrasonic cleaning module 7 is started to perform ultrasonic cleaning on the dust filter bag for M 02 , then execute step 6; Step 6: The transmittance sensor 6 measures the transmittance T of the liquid in the water tank 1: If T≤T 02 , the driving machine 21 and the high-pressure spray pump 41 are stopped, and then the liquid in the water tank 1 is discharged through the drain pipe 12, and the third step is performed again; If T>T 02 , then execute step 7; In the seventh step, the conductivity sensor 3 measures the conductivity σ of the liquid in the water tank 1: If σ≥σ 02 , the driving machine 21 and the high-pressure spray pump 41 are stopped, and then the liquid in the water tank 1 is discharged through the drain pipe 12, and the third step is performed again; If σ<σ 02 , the driving machine 21 and the high-pressure spray pump 41 are stopped, and then the liquid in the water tank 1 is discharged through the drain pipe 12 to complete the cleaning.

[0039] Example 1 The automatic dust filter bag cleaning device is used to clean the dust filter bag, including the following steps: The first step is to tighten the dust filter bag and install it on the filter bag frame 24 to fix it; The second step is to add water into the water tank 1 through the water inlet pipe 11, so that the liquid level reaches 1 / 3 to 2 / 3 of the height of the water tank 1, immersing the lower half of the dust filter bag, and stopping the water inlet after the dust filter bag is partially extended above the liquid level; The third step is to start the driving machine 21 and the high-pressure spray pump 41 to enter the cleaning mode; The driving machine 21 drives the mounting shaft 22 and the rotating disk 23 and the filter bag frame 24 fixed thereon to rotate, and the dust filter bag installed on the filter bag frame 24 rotates synchronously with it, so that each part of the dust filter bag periodically performs water inflow and water outflow actions; The high-pressure water flow is sprayed from the high-pressure spray head 42 to the dust filter bag under the action of the high-pressure spray pump 41, and the part of the dust filter bag located above the liquid surface is high-pressure washed for 5 minutes to 10 minutes; Step 4: The transmittance sensor 6 measures the UV254 transmittance X of the liquid in the water tank 1: If X≤40%, the light transmittance of the washing water in the water tank 1 is low, that is, the washing water is relatively dirty; at this time, the driving machine 21 and the high-pressure spray pump 41 are stopped, and then the electric drain valve 53 is opened, and the liquid in the water tank 1 is drained through the drain pipe 12 until it is empty, and then the electric drain valve 53 is closed, and the third step is performed again; If X>40%, the light transmittance of the cleaning water in the water tank 1 is relatively high, that is, the cleaning water is relatively clean; at this time, proceed to step 5; Step 5: The conductivity sensor 3 measures the conductivity σ of the liquid in the water tank 1: If σ≥1500μs / cm, the cleaning water in the water tank 1 still contains a lot of dirt, the driving machine 21 and the high-pressure spray pump 41 are stopped, and then the electric drain valve 53 is opened, and the liquid in the water tank 1 is drained through the drain pipe 12 until it is empty, and then the electric drain valve 53 is closed, and the third step is performed again; If σ<1500 μs / cm, the cleaning water in the water tank 1 contains less dirt, and the ultrasonic cleaning module 7 is started to perform ultrasonic cleaning on the dust filter bag for 5 to 10 minutes, and then the sixth step is executed; Step 6: The transmittance sensor 6 measures the transmittance T of the liquid in the water tank 1: If T≤70%, the light transmittance of the washing water in the water tank 1 is still insufficient, that is, the washing water is not clean enough; at this time, the driving machine 21 and the high-pressure spray pump 41 are stopped, and then the electric drain valve 53 is opened, and the liquid in the water tank 1 is drained through the drain pipe 12 until it is empty, and then the electric drain valve 53 is closed, and the third step is performed again; If T>70%, execute step 7; In the seventh step, the conductivity sensor 3 measures the conductivity σ of the liquid in the water tank 1: If σ≥500μs / cm, the dirt content in the washing water in the water tank 1 is still not low enough; at this time, the driving machine 21 and the high-pressure spray pump 41 are stopped, and then the electric drain valve 53 is opened, and the liquid in the water tank 1 is drained through the drain pipe 12 until it is empty, and then the electric drain valve 53 is closed, and the third step is performed again; If σ<500μs / cm, the dirt content in the cleaning water in the water tank 1 meets the cleaning requirements, the driving motor 21 and the high-pressure spray pump 41 are stopped, and then the electric drain valve 53 is opened, and the liquid in the water tank 1 is discharged through the drain pipe 12 until it is empty, and then the electric drain valve 53 is closed to complete the cleaning.

[0040] In the above cleaning method, the electric water inlet valve 52 and the electric water drain valve 53 can be automatically controlled by the controller according to the preset water inlet and water drain conditions and the liquid level information fed back by the liquid level meter 51; The conductivity sensor 3 is preferably a CN12D-B digital conductivity sensor with a measuring range of 0.1~5000μs / cm; the liquid level meter 51 is preferably a magnetic liquid level meter, the electric water inlet valve 52 and the electric drain valve 53 are preferably Q911F-16P-DN15 electric three-piece stainless steel ball valves, the transmittance sensor 6 is preferably a BersonSense water transmittance detector, and the ultrasonic cleaning module 7 is preferably a PS-1025P model 28KHz standard ultrasonic vibrator produced by Hefei Pansheng Ultrasonic Technology Co., Ltd.

[0041] In order to confirm the cleaning effect of the dust filter bag, the air permeability of the dust filter bag was tested using a digital air permeability instrument produced by Ningbo Textile Instrument Factory. The diameter of the digital air permeability instrument is 4cm, and the test cleaning area is 20cm.2 , test pressure is 200Pa, test times are 100 times, and air permeability is the average value of 100 test results.

[0042] The air permeability of the new dust filter bag is 224.12mm / s. After being installed in the dust collector, the internal and external pressure difference fluctuates around 290pa.

[0043] The air permeability of the dust filter bag before cleaning after use is 109.22mm / s, and the internal and external pressure difference before disassembly fluctuates around 1500pa.

[0044] The dust filter bag was cleaned using the automatic dust filter bag cleaning device and method of Example 1. After cleaning, the air permeability of the dust filter bag was 219.34 mm / s. After being installed in the dust collector, the internal and external pressure difference fluctuated around 300 Pa.

[0045] The dust filter bags are cleaned manually. After cleaning, the air permeability of the dust filter bags is 179.55 mm / s. After being installed in the dust collector, the internal and external pressure difference fluctuates around 600 Pa.

[0046] Taking a brand new dust filter bag as a reference, the air permeability of the dust filter bag after cleaning by the above-mentioned automatic dust filter bag cleaning device and method reaches 97.87%, which is relatively close to the air permeability of a brand new dust filter bag. It is significantly higher than the 80.11% air permeability of the dust filter bag after cleaning by pure manual cleaning method, and the cleaning effect is relatively ideal.

[0047] It should be 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", "comprise" or any other variants 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. In the absence of further restrictions, the elements defined by the sentence "comprise a ..." do not exclude the existence of other identical elements in the process, method, article or device including the elements.

[0048] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit the same. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that the technical solutions described in the aforementioned embodiments may still be modified, or some of the technical features may be replaced by equivalents. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. An automatic cleaning device for dust filter bags, comprising a water tank (1), wherein the top and bottom of the water tank (1) are respectively connected with a water inlet pipe (11) and a drain pipe (12), wherein the water inlet pipe (11) is connected with a water source, and wherein: It also includes a tooling structure (2), a conductivity sensor (3) and a transmittance sensor (6); The tooling structure (2) is located in the upper part of the water tank (1) and is used to install the dust filter bag, and the tooling structure (2) drives the dust filter bag to rotate around a horizontal rotating axis; The conductivity sensor (3) and the transmittance sensor (6) are used to measure the conductivity and transmittance of the liquid in the water tank (1), respectively.

2. The automatic cleaning device for dust filter bags according to claim 1 is characterized in that: The tooling structure (2) comprises a driving machine (21), a mounting shaft (22), a rotating disk (23) and a filter bag frame (24); The mounting shaft (22), the rotating disk (23) and the filter bag holder (24) are located in the water tank (1); the mounting shaft (22) is rotatably mounted and connected to the side wall of the water tank (1), one end of which extends out of the water tank (1) and is mounted and connected to the output end of the driving machine (21); the rotating disk (23) is fixedly connected to the mounting shaft (22), and the filter bag holder (24) for tensioning and limiting the dust filter bag is mounted on the rotating disk (23).

3. The automatic cleaning device for dust filter bags according to claim 2 is characterized in that: The rotating disk (23) is in the form of a circular disk structure, is coaxially arranged with the mounting shaft (22), and is provided with mounting holes; It also comprises at least two mounting rods serving as the filter bag rack (24), one end of the mounting rod being detachably mounted in the mounting hole, and the dust removal filter bag being tensionedly arranged on each of the mounting rods.

4. The automatic cleaning device for dust filter bags according to claim 2 is characterized in that: One end of the installation shaft (22) extending outside the water tank (1) is provided with a pulley structure, and is installed and connected to the output end of the driving machine (21) via a transmission belt tensioned on the pulley structure.

5. The automatic cleaning device for dust filter bags according to claim 2 is characterized in that: A spray structure (4) is also provided; The spray structure comprises a high-pressure spray pump (41) and a high-pressure spray head (42); the high-pressure spray head (42) is fixedly installed, located above the dust filter bag, and connected to a water source via a spray pipe; the high-pressure spray pump (41) is connected to the spray pipe.

6. The automatic cleaning device for dust filter bags according to claim 5 is characterized in that: The high-pressure spray head (42) is in the form of a straight pipe structure having a plurality of nozzles, and the nozzles are evenly arranged toward the dust removal filter bag.

7. An automatic dust filter bag cleaning device according to claim 5 or 6, characterized in that: A control module and a liquid inlet and outlet module (5) are also provided; The liquid inlet and outlet module (5) comprises a liquid level meter (51), an electric water inlet valve (52) and an electric water drain valve (53) which are in data communication with the control module; the liquid level meter (51) is arranged in the water tank (1), and the electric water inlet valve (52) and the electric water drain valve (53) are respectively arranged in communication with the water inlet pipe (11) and the water drain pipe (12); The control module is in data communication with the conductivity sensor (3), the light transmittance sensor (6), the driving machine (21), the high-pressure spray pump (41), the electric water inlet valve (52), and the electric water discharge valve (53).

8. The automatic cleaning device for dust filter bags according to claim 7 is characterized in that: Also includes an ultrasonic cleaning module (7); The ultrasonic cleaning module (7) is arranged at the bottom of the water tank (1), and its action direction is towards the dust removal filter bag.

9. A method for automatically cleaning a dust filter bag, using the automatic cleaning device for dust filter bags as claimed in claim 8 to clean the dust filter bags, characterized in that: The process includes: The first step is to tension and install the dust filter bag on the filter bag frame (24) and fix it; The second step is to supply water into the water tank (1) through the water inlet pipe (11) so that the liquid level submerges the lower half of the dust filter bag and the dust filter bag is partially extended above the liquid level, and then stop supplying water; The third step is to start the driving machine (21) and the high-pressure spray pump (41) to enter the cleaning mode; The driving machine (21) drives the mounting shaft (22) and the rotating disk (23) and the filter bag frame (24) fixed thereon to rotate, and the dust filter bag tensioned and mounted on the filter bag frame (24) rotates synchronously with it, so that each part of the dust filter bag periodically performs water inflow and water outflow actions; The high-pressure water flow is sprayed toward the dust filter bag from the high-pressure spray head (42) under the action of the high-pressure spray pump (41), and the portion of the dust filter bag located above the liquid surface is subjected to high-pressure washing for a period of M. 01 ; In the fourth step, the transmittance sensor (6) measures the transmittance X of the liquid in the water tank (1): If X≤X 01 , the driving machine (21) and the high-pressure spray pump (41) are stopped, and then the liquid in the water tank (1) is drained through the drain pipe (12), and the third step is performed again; If X>X 01 , then proceed to step 5; In the fifth step, the conductivity sensor (3) measures the conductivity σ of the liquid in the water tank (1): If σ≥σ 01 , the driving machine (21) and the high-pressure spray pump (41) are stopped, and then the liquid in the water tank (1) is drained through the drain pipe (12), and the third step is performed again; If σ<σ 01 , the ultrasonic cleaning module (7) is started to perform ultrasonic cleaning on the dust filter bag for M 02 , then execute step 6; In the sixth step, the transmittance sensor (6) measures the transmittance T of the liquid in the water tank (1): If T≤T 02 , the driving machine (21) and the high-pressure spray pump (41) are stopped, and then the liquid in the water tank (1) is drained through the drain pipe (12), and the third step is performed again; If T>T 02 , then execute step 7; In the seventh step, the conductivity sensor (3) measures the conductivity σ of the liquid in the water tank (1): If σ≥σ 02 , the driving machine (21) and the high-pressure spray pump (41) are stopped, and then the liquid in the water tank (1) is drained through the drain pipe (12), and the third step is performed again; If σ<σ 02 , the driving machine (21) and the high-pressure spray pump (41) are stopped, and the liquid in the water tank (1) is then discharged through the drain pipe (12), completing the cleaning.

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