Cleaning system and cleaning method for cloth bag in bag-type dust collector

Through the combined system of bag opening, drying, blowing and shaking, combined with high-temperature radiation lamps and rotary spray guns, the problem of poor cleaning effect of bag dust collectors is solved, efficient and energy-saving bag cleaning is achieved, adapting to different dust characteristics and protecting bag fibers.

CN120679258APending Publication Date: 2025-09-23HUANENG QINGDAO THERMAL POWER CO LTD
View PDF 2 Cites 0 Cited by

Patent Information

Application Number
CN202510804705.7
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2025-06-16
Publication Date
2025-09-23

AI Technical Summary

Technical Problem

The cleaning system of the existing bag dust collector has the problem of poor cleaning effect, especially the traditional air blast cleaning method is inefficient and difficult to completely remove the dust on the bag.

Method used

A combined system of bag opening, drying, soot blowing and shaking devices is used to achieve thorough cleaning through the steps of bag opening, drying, soot blowing and shaking. High-temperature radiation lamps are used to accelerate drying and rotary spray guns for comprehensive cleaning. Combined with the detection module, the air pressure and time are optimized to adapt to different dust characteristics.

Benefits of technology

It realizes the full expansion and drying of the bag, thoroughly removes dust, solves the dead corner problem in traditional cleaning, improves cleaning efficiency and energy saving effect, protects the bag fiber, and reduces operation and maintenance costs.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN120679258A_ABST
    Figure CN120679258A_ABST
Patent Text Reader

Abstract

The invention provides a cleaning system and a cleaning method for a cloth bag in a cloth bag dust remover, and relates to the field of dust removal, the cleaning system comprises a cloth bag opening device used for opening the cloth bag to be subjected to dust removal; the cloth bag drying device is used for drying the to-be-dedusted cloth bag; the dust blowing device is used for blowing dust of the cloth bag to be dedusted; and the swinging device is used for swinging the cloth bag to be subjected to dust removal to realize dust removal. The opening device enables the cloth bag to be fully unfolded, no wrinkles exist for shielding, and each part can be covered by blowing dust and drying; the rotary spray gun is matched with the opened cloth bag to realize 360-degree blowing; dust viscosity is reduced in the drying link, so that dust blowing and dust throwing are more thorough, and damp dust is prevented from being adsorbed to the cloth bag again. All links are modularized (opening, drying, soot blowing and dust throwing are independent and cooperative), and the dust removal effect is guaranteed.
Need to check novelty before this filing date? Find Prior Art

Description

Technical Field

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

[0002] A bag filter is a dry dust filtration device suitable for capturing fine, dry, non-fibrous dust. Made of textile filter cloth or non-woven felt, the filter bags utilize the filtration properties of the fabric to filter dust-laden air. When dust-laden air enters the bag filter, large, high-density dust particles settle due to gravity and fall into the hopper. Finer dust particles are retained as they pass through the filter material, resulting in purification.

[0003] In order to improve the use effect of the cloth bag, it is necessary to clean the cloth bag. Existing cloth bag cleaning, such as a cloth bag cleaning device in CN214415864U, only cleans by blowing air, which has the defect of poor cleaning effect. Summary of the Invention

[0004] The present invention provides a system and method for cleaning bags in a bag filter, so as to solve the technical problems raised by the above-mentioned background technology.

[0005] In order to solve the above technical problems, the present invention discloses a cleaning system for bags in a bag filter, comprising: Bag opening device, the bag opening device is used to open the bags to be removed; Bag drying device, bag drying device is used to dry the bags to be dust removed; Soot blowing device, which is used to blow dust from the bag to be removed; The swinging device is used to swing the dust bags to be removed to achieve dust removal.

[0006] Preferably, the bag drying device is a high-temperature radiation lamp.

[0007] Preferably, the expansion device comprises: A disk body, wherein the middle portion of the disk body rotates and passes through a vertical shaft, the lower portion of the vertical shaft is a threaded portion, a threaded sleeve is threadedly connected to the threaded portion, the interior of the disk body is hollow, and a driving device is installed inside the disk body, the driving device is used to drive the vertical shaft to rotate; A plurality of groups of sliding holes are evenly spaced along the circumference of the disk body, and the length direction of the sliding holes is radially along the vertical axis; Several groups of spreading mechanisms are arranged evenly spaced along the circumferential direction of the disk body. The spreading mechanisms include: a slider, which is slidably connected in the corresponding sliding hole, and the outer side of the upper end of the slider is detachably connected to the spreading leaf, one end of the connecting rod is hinged to the threaded sleeve, and the other end of the connecting rod is hinged to the lower part of the slider.

[0008] Preferably, the sootblowing device comprises: a vertical rod, the lower end of the vertical rod is fixedly connected to the upper end of the vertical shaft, and the upper end of the vertical rod is fixedly connected to the spray gun.

[0009] Preferably, through hole one and through hole two are respectively provided at the center of the vertical axis and the center of the vertical rod. The through hole one is coaxially arranged with the through hole two and is connected. The through hole two is connected to the air inlet of the spray gun, and the lower end of the through hole is connected to the air inlet pipe.

[0010] Preferably, the driving device includes: a driving motor, a driving gear is installed on the output shaft of the driving motor, a driven gear is fixedly sleeved on the vertical shaft, and the driving gear is engaged with the driven gear; a high-temperature radiation lamp is provided on the disk body; and the vertical rod is a vertical electric telescopic rod.

[0011] Preferably, it further comprises: a drying adjustment device, the drying adjustment device comprising: The first detection module is used to detect the surface dust humidity of the bag to be blown; The second detection module is used to detect the dust thickness on the surface of the bag to be blown; A first calculation module: used to determine the initial dust removal pressure of the bag to be blown based on the detection results of the first detection module and the detection results of the second detection module; Control module: controls the soot blowing device to perform dust removal on a certain area of ​​the soot blowing bag at the initial dust removal air pressure of the soot blowing bag for a preset time, and controls the second detection module to perform another detection at the end of the preset time; Second calculation module: based on the detection results of the second detection module before dust removal And the detection result of the second detection module at the end of the preset time Obtaining the actual dust removal factor ; ; The dust thickness on the surface of the bag to be blown; The second determination module is used to determine whether the initial dust removal air pressure of the cloth bag to be blown needs to be adjusted based on the actual dust removal coefficient. When the initial dust removal air pressure of the cloth bag to be blown needs to be adjusted, the dust removal air pressure of the cloth bag to be blown after adjustment is determined, and the control module controls the soot blowing device to complete dust removal for the cloth bag to be blown with the dust removal air pressure of the cloth bag to be blown after adjustment.

[0012] Preferably, it further comprises: a drying adjustment device, the drying adjustment device comprising: The first detection module is used to detect the surface dust humidity of the bag to be blown; The second detection module is used to detect the dust thickness on the surface of the bag to be blown; A first calculation module: used to determine the initial dust removal pressure of the bag to be blown based on the detection results of the first detection module and the detection results of the second detection module; Control module: controls the soot blowing device to perform dust removal on a certain area of ​​the soot blowing bag at the initial dust removal air pressure of the soot blowing bag for a preset time, and controls the second detection module to perform another detection at the end of the preset time; Second calculation module: based on the detection results of the second detection module before dust removal And the detection result of the second detection module at the end of the preset time Obtaining the actual dust removal factor ; ; The dust thickness on the surface of the bag to be blown; The second determination module is used to determine whether the initial dust removal air pressure of the cloth bag to be blown needs to be adjusted based on the actual dust removal coefficient. When the initial dust removal air pressure of the cloth bag to be blown needs to be adjusted, the dust removal air pressure of the cloth bag to be blown after adjustment is determined, and the control module controls the soot blowing device to complete dust removal for the cloth bag to be blown with the dust removal air pressure of the cloth bag to be blown after adjustment.

[0013] Preferably, the second determining module includes: An acquisition unit is used to acquire a curve of the air pressure corresponding to the current type of dust removal gas and a baseline dust removal coefficient within a preset time period for the current type of bag under the conditions of a baseline dust thickness and a baseline dust humidity. The abscissa of the curve is the air pressure corresponding to the current type of dust removal gas, and the ordinate is the baseline dust removal coefficient within the preset time period corresponding to the abscissa. The abscissa of the curve starts from the baseline initial air pressure corresponding to the baseline dust thickness and the baseline dust humidity. A calculation unit is used to determine, based on a first ratio of a required dust removal coefficient of a bag to be blown to the actual dust removal coefficient, an air pressure corresponding to a target current type of dust removal gas in a curve of an air pressure corresponding to a current type of dust removal gas and a benchmark dust removal coefficient within a preset time period, a ratio of the benchmark dust removal coefficient within a preset time period corresponding to the air pressure corresponding to the target current type of dust removal gas to the benchmark dust removal coefficient within a preset time period corresponding to the baseline initial air pressure, K, where K is 1.07-1.27 times the first ratio; Calculate the dust removal air pressure of the bag to be blown after adjustment ;

[0014] in, The air pressure corresponding to the current type of dust removal gas.

[0015] Preferably, the first calculation module calculates based on the following formula:

[0016] P is the initial dust removal pressure of the bag to be blown; is the baseline initial air pressure; is the baseline dust thickness; is the baseline dust humidity; The dust thickness on the surface of the bag to be blown; The surface dust humidity of the bag to be blown; is the thickness correction factor; is the humidity correction factor.

[0017] The present invention also provides a method for cleaning bags in a bag-type dust collector, which is applied to the aforementioned system for cleaning bags in a bag-type dust collector. The cleaning method comprises: Step 1: Use the bag opening device to open the dust bag to be removed; Step 2: Arrange multiple high-temperature radiation lamps inside and outside the dust bag to be removed to dry the dust bag; Step 3: Inject compressed air into the dust blowing device to rotate and clean the dust bag; Step 4: Close the bag opening device and install the dust bag to be removed into the shaking device to shake off the dust.

[0018] Compared with the prior art, the present invention has the following beneficial effects: The expansion device allows the bag to be fully expanded without wrinkles, so that every area can be covered during dust blowing and drying. The rotating spray gun cooperates with the expanded bag to achieve 360° sweeping, solving the "dead corner" problem of traditional cleaning. The drying process reduces the stickiness of dust, making dust blowing and dust removal more thorough, and preventing wet dust from re-adsorbing the bags.

[0019] The opening and blowing actions are linked by the vertical axis (the vertical axis is driven to realize the opening and the rotation of the spray gun at the same time), which reduces the number of independent mechanism actions and shortens the cleaning cycle; High-temperature radiation lamps have a fast drying speed, and the heat radiation directly acts on the cloth bags and dust. Compared with traditional hot air drying, it is more energy-saving and efficient.

[0020] The opening leaves are detachable and the vertical rod is an electric telescopic rod. The opening range and the height of the spray gun can be adjusted according to the size of the bag (diameter, length), and it is suitable for dust collector bags of different specifications. Each link is modularized (opening, drying, blowing, and dust removal are independent and coordinated) to ensure the dust removal effect, and the cleaning parameters (such as drying temperature, blowing pressure, and shaking frequency) can be flexibly adjusted to adapt to different dust characteristics (viscosity, humidity differences).

[0021] Gentle stretching and shaking movements (precisely controlled by the mechanical structure) avoid damage to the bag fibers caused by violent cleaning. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the technical solutions in the present invention or the prior art, a brief introduction is given below to the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0023] Figure 1 A schematic diagram of a cleaning system for bags in a bag filter according to the present invention; Figure 2 It is a structural schematic diagram of the bag opening device and the soot blowing device of the present invention.

[0024] In the figure: 1. Bag opening device; 11. Disc; 12. Vertical shaft; 121. Threaded portion; 13. Sliding hole; 14. Sliding block; 15. Opening leaf; 16. Threaded sleeve; 17. Connecting rod; 2. Soot blowing device; 21. Vertical rod; 22. Spray gun. DETAILED DESCRIPTION

[0025] To make the objectives, technical solutions, and advantages of the present invention more clear, the technical solutions of the present invention will be clearly and completely described below in conjunction with the accompanying drawings. Obviously, the embodiments described are only some of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts shall fall within the scope of protection of the present invention.

[0026] The present invention provides a cleaning system for bags in bag dust collectors, such as Figure 1-Figure 2 As shown, including: The bag opening device 1 is used to open the bag to be removed; Bag drying device: the bag drying device is used to dry the bags to be dust-removed; Soot blowing device 2, soot blowing device 2 is used to blow dust from the bag to be removed; A swinging device (this is prior art, such as CN108382067B) is used to swing the dust bag to be removed to achieve dust removal.

[0027] Preferably, the bag drying device is a high-temperature radiation lamp.

[0028] Preferably, the expansion device comprises: The disk body 11 has a central portion that rotates and passes through a vertical shaft 12. The lower portion of the vertical shaft 12 is a threaded portion 121, and a threaded sleeve 16 is threadedly connected to the threaded portion 121. The disk body 11 is hollow inside, and a driving device is installed inside the disk body 11. The driving device is used to drive the vertical shaft 12 to rotate; A plurality of groups of sliding holes 13 are evenly spaced along the circumference of the disk body 11 , and the length direction of the sliding holes 13 is along the radial direction of the vertical axis 12 ; Several groups of spreading mechanisms are arranged evenly spaced along the circumferential direction of the disk body 11. The spreading mechanisms include: a slider 14, which is slidably connected in the corresponding sliding hole 13. The outer side of the upper end of the slider 14 is detachably connected to the spreading leaf 15, one end of the connecting rod 17 is hinged to the threaded sleeve 16, and the other end of the connecting rod 17 is hinged to the lower part of the slider 14.

[0029] Preferably, the sootblowing device 2 includes: a vertical rod 21 , the lower end of the vertical rod 21 is fixedly connected to the upper end of the vertical shaft 12 , and the upper end of the vertical rod 21 is fixedly connected to the spray gun 22 .

[0030] Preferably, through hole one and through hole two are respectively provided at the center of the vertical axis 12 and the center of the vertical rod 21. The through hole one is coaxially arranged with the through hole two and is connected. The through hole two is connected to the air inlet of the spray gun 22. The lower end of the through hole is connected to the air inlet pipe.

[0031] Preferably, the driving device includes: a driving motor, a driving gear is installed on the output shaft of the driving motor, a driven gear is fixedly sleeved on the vertical shaft 12, and the driving gear is engaged with the driven gear (this is the existing technology); the disk body 11 is provided with a high-temperature radiation lamp; the vertical rod 21 is a vertical electric telescopic rod.

[0032] A method for cleaning a bag in a bag filter, the method comprising: Step 1: Open the dust bag to be removed by using the bag opening device 1; Step 2: Arrange multiple high-temperature radiation lamps inside and outside the dust bag to be removed to dry the dust bag; Step 3: Compressed air is introduced into the dust-blowing device 2 to perform rotary cleaning inside the dust bag; Step 4: Close the bag opening device 1 and install the dust bag to be removed into the shaking device to shake off the dust.

[0033] The working principle of the above technical solution is: Cloth bag expansion: The driving device (such as a driving motor + gear set) drives the vertical shaft to rotate, and the threaded portion 121 of the vertical shaft 12 cooperates with the threaded sleeve 16 to realize the upward movement of the threaded sleeve 16. The connecting rod 17 pushes the slider 14 to slide radially along the sliding hole 13 of the disc body 11. The expansion leaf 15 moves outward with the slider 14 to expand the interior of the cloth bag, creating an open space for subsequent cleaning; Bag drying: Using high-temperature radiation lamps (placed on the tray 11 or outside the bag to be removed) to transfer heat by thermal radiation, the moisture in the bag and the adsorbed dust evaporates, reducing humidity and preventing adhesion that affects the cleaning effect; Dust blowing and cleaning: The vertical rod 21 rotates synchronously with the vertical shaft 12, and the spray gun 22 is connected to the air inlet pipe through the through hole to introduce compressed air. During the rotation process, the inner wall of the bag is blown in all directions, and the dust is removed by the impact force of the air flow; Swinging dust removal: After closing the support device, the swinging device (which can adopt existing technology, such as vibration, centrifugal force, etc.) drives the bag to swing, so that the loosened dust is separated from the bag due to inertia, thus completing the dust removal.

[0034] The beneficial effects of the above technical solution are: The opening device 1 allows the cloth bag to be fully expanded without wrinkles, so that every area can be covered during dust blowing and drying. The rotating spray gun cooperates with the opened cloth bag to achieve 360° sweeping, solving the "dead corner" problem of traditional cleaning. The drying process reduces the stickiness of dust, making dust blowing and dust removal more thorough, and preventing wet dust from re-adsorbing the bags.

[0035] The opening and blowing actions are linked by the vertical shaft 12 (driving the vertical shaft 12 to realize the opening and the rotation of the spray gun at the same time), which reduces the number of independent mechanism actions and shortens the cleaning cycle; High-temperature radiation lamps have a fast drying speed, and the heat radiation directly acts on the cloth bags and dust. Compared with traditional hot air drying, it is more energy-saving and efficient.

[0036] The opening leaf 15 is detachable and the vertical rod 12 is an electric telescopic rod. The opening range and the height of the spray gun 22 can be adjusted according to the size of the bag (diameter, length), and it is suitable for dust collector bags of different specifications. Each link is modularized (opening, drying, blowing, and dust removal are independent and coordinated) to ensure the dust removal effect, and the cleaning parameters (such as drying temperature, blowing pressure, and shaking frequency) can be flexibly adjusted to adapt to different dust characteristics (viscosity, humidity differences).

[0037] Gentle stretching and shaking movements (precisely controlled by the mechanical structure) avoid damage to the bag fibers caused by violent cleaning.

[0038] Example 2, based on Example 1, further includes: a drying adjustment device, the drying adjustment device including: The first detection module is used to detect the surface dust humidity of the bag to be blown; The second detection module is used to detect the dust thickness on the surface of the bag to be blown; A first calculation module: used to determine the initial dust removal pressure of the bag to be blown based on the detection results of the first detection module and the detection results of the second detection module; Control module: controls the soot blowing device to perform dust removal on a certain area of ​​the soot blowing bag at the initial dust removal air pressure of the soot blowing bag for a preset time, and controls the second detection module to perform another detection at the end of the preset time; Second calculation module: based on the detection results of the second detection module before dust removal And the detection result of the second detection module at the end of the preset time Obtaining the actual dust removal factor ; ; The dust thickness on the surface of the bag to be blown; The second determination module is used to determine whether the initial dust removal air pressure of the cloth bag to be blown needs to be adjusted based on the actual dust removal coefficient. When the initial dust removal air pressure of the cloth bag to be blown needs to be adjusted, the dust removal air pressure of the cloth bag to be blown after adjustment is determined, and the control module controls the soot blowing device to complete dust removal for the cloth bag to be blown with the dust removal air pressure of the cloth bag to be blown after adjustment.

[0039] The second determining module includes: An acquisition unit is used to acquire a curve of the air pressure corresponding to the current type of dust removal gas and a baseline dust removal coefficient within a preset time period for the current type of bag under the conditions of a baseline dust thickness and a baseline dust humidity. The abscissa of the curve is the air pressure corresponding to the current type of dust removal gas, and the ordinate is the baseline dust removal coefficient within the preset time period corresponding to the abscissa. The abscissa of the curve starts from the baseline initial air pressure corresponding to the baseline dust thickness and the baseline dust humidity. Calculation unit: used to determine the air pressure corresponding to the target current type of dust removal gas in the curve of the air pressure corresponding to the current type of dust removal gas - the benchmark dust removal coefficient within the preset time period based on the first ratio of the required dust removal coefficient of the bag to be blown and the actual dust removal coefficient, the ratio of the benchmark dust removal coefficient within the preset time period corresponding to the air pressure corresponding to the target current type of dust removal gas to the benchmark dust removal coefficient within the preset time period corresponding to the benchmark initial air pressure is K, and the value of K is 1.07-1.27 times the first ratio; when there are multiple air pressures corresponding to the target current type of dust removal gas, the average of the three smallest air pressures corresponding to the target current type of dust removal gas is selected.

[0040] Calculate the dust removal air pressure of the bag to be blown after adjustment ;

[0041] in, The air pressure corresponding to the current type of dust removal gas.

[0042] The first calculation module is based on the following formula:

[0043] P is the initial dust removal pressure of the bag to be blown; is the baseline initial air pressure; is the baseline dust thickness; is the baseline dust humidity; The dust thickness on the surface of the bag to be blown; The surface dust humidity of the bag to be blown; is the thickness correction factor; is the humidity correction factor.

[0044] The beneficial effects of the above technical solution are: For each bag to be cleaned, the initial air pressure is calculated based on the dust humidity (first detection module) and thickness (second detection module). The thickness / humidity correction factor is introduced into the formula to accurately increase the initial air pressure, ensuring that the airflow impact force matches the dust adhesion force, thereby improving the dust removal rate of a single dust removal from the source. Closed-loop optimization of cleaning effect: After a preset time, a second test is performed, and the actual removal coefficient is reversely verified. If the dust removal does not meet the standard (such as sticky dust residue), the air pressure is dynamically adjusted based on the reference curve, realizing a closed loop of "dust removal-assessment-optimization" to ensure thorough cleaning under complex working conditions. Reduce energy consumption and bag loss to avoid excessive dust removal: Traditional fixed air pressure models often waste energy due to "excess air pressure" (e.g., low-pollution bags are still purged with high air pressure). In this solution, the initial air pressure is calculated based on actual pollution parameters, and the removal coefficient is used to determine whether to adjust it. This accurately controls the air pressure to "just enough", significantly reducing compressed air energy consumption (especially suitable for large-scale dust removal systems that operate continuously). Protecting the life of the bags: Excessive air pressure can easily damage bag fibers (e.g., causing the film to peel and the base fabric to tear). A dynamic adjustment strategy mitigates extreme air pressure shocks. The swivel mechanism and dust blower work together (fluffing first, then sweeping away dust) to reduce fatigue wear caused by high-frequency, high-amplitude vibrations in the bags, indirectly extending bag replacement cycles and reducing operational costs.

[0045] The "dust removal gas corresponding to the air pressure - the baseline dust removal coefficient curve within the preset time" is pre-calibrated (different bag materials and dust types are independently profiled), and can be directly called and adapted in actual applications, simplifying the on-site debugging process. When adding new dust working conditions, only the calibration curve needs to be added for rapid adaptation, improving system scalability. Algorithm Enhanced Adaptability: The calculation unit incorporates a proportionality factor (K = 1.07-1.27 times the initial ratio) to balance the need for a reasonable correction range with the need for rapid compliance, avoiding pressure fluctuations caused by excessive single adjustments. This algorithmic design ensures stable and intelligent operation in complex and volatile industrial environments, such as those characterized by random fluctuations in dust humidity and thickness.

[0046] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. 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 various embodiments of the present invention.

Claims

1. A cleaning system for bags in a bag filter, characterized in that: include: A bag opening device (1), the bag opening device (1) is used to open the bag to be dusted; Bag drying device, bag drying device is used to dry the bags to be dust removed; A soot blowing device (2), the soot blowing device (2) is used to blow dust from a bag to be removed; The swinging device is used to swing the dust bags to be removed to achieve dust removal.

2. A cleaning system for bags in a bag filter according to claim 1, characterized in that: The bag drying device is a high-temperature radiation lamp.

3. The cleaning system for bags in a bag filter according to claim 1, characterized in that: The expansion device comprises: A disk body (11), wherein the middle portion of the disk body (11) rotates and penetrates a vertical shaft (12), the lower portion of the vertical shaft (12) is a threaded portion (121), and a threaded sleeve (16) is threadedly connected to the threaded portion (121), the interior of the disk body (11) is hollow, and a driving device is installed inside the disk body (11), and the driving device is used to drive the vertical shaft (12) to rotate; A plurality of groups of sliding holes (13), wherein the plurality of groups of sliding holes (13) are evenly spaced along the circumferential direction of the disk body (11), and the length direction of the sliding holes (13) is along the radial direction of the vertical axis (12); A plurality of groups of spreading mechanisms are evenly spaced along the circumferential direction of the disk body (11), and the spreading mechanisms include: a slider (14), the slider (14) is slidably connected in the corresponding sliding hole (13), the outer side of the upper end of the slider (14) is detachably connected to the spreading leaf (15), one end of the connecting rod (17) is hinged to the threaded sleeve (16), and the other end of the connecting rod (17) is hinged to the lower part of the slider (14).

4. A cleaning system for bags in a bag filter according to claim 3, characterized in that: The sootblowing device (2) comprises a vertical rod (21), the lower end of the vertical rod (21) is fixedly connected to the upper end of the vertical shaft (12), and the upper end of the vertical rod (21) is fixedly connected to the spray gun (22).

5. A cleaning system for bags in a bag filter according to claim 4, characterized in that: A through hole 1 and a through hole 2 are respectively provided at the center of the vertical axis (12) and the center of the vertical rod (21). The through hole 1 and the through hole 2 are coaxially arranged and connected. The through hole 2 is connected to the air inlet of the spray gun (22). The lower end of the through hole is connected to the air inlet pipe.

6. A system for cleaning bags in a bag filter according to claim 4, characterized in that: The driving device comprises: a driving motor, a driving gear is installed on the output shaft of the driving motor, a driven gear is fixedly sleeved on the vertical shaft (12), and the driving gear is meshed with the driven gear; the disk (11) is provided with a high-temperature radiation lamp; and the vertical rod (21) is a vertical electric telescopic rod.

7. The cleaning system for bags in a bag filter according to claim 1, characterized in that: Also includes: Drying adjustment device, the drying adjustment device includes: The first detection module is used to detect the surface dust humidity of the bag to be blown; The second detection module is used to detect the dust thickness on the surface of the bag to be blown; A first calculation module: used to determine the initial dust removal pressure of the bag to be blown based on the detection results of the first detection module and the detection results of the second detection module; Control module: controls the soot blowing device to perform dust removal on a certain area of ​​the soot blowing bag at the initial dust removal air pressure of the soot blowing bag for a preset time, and controls the second detection module to perform another detection at the end of the preset time; Second calculation module: based on the detection results of the second detection module before dust removal And the detection result of the second detection module at the end of the preset time Obtaining the actual dust removal factor ; ; The dust thickness on the surface of the bag to be blown; The second determination module is used to determine whether the initial dust removal air pressure of the cloth bag to be blown needs to be adjusted based on the actual dust removal coefficient. When the initial dust removal air pressure of the cloth bag to be blown needs to be adjusted, the dust removal air pressure of the cloth bag to be blown after adjustment is determined, and the control module controls the soot blowing device to complete dust removal for the cloth bag to be blown with the dust removal air pressure of the cloth bag to be blown after adjustment.

8. A system for cleaning bags in a bag filter according to claim 7, characterized in that: The second determining module includes: An acquisition unit is used to acquire a curve of the air pressure corresponding to the current type of dust removal gas and a baseline dust removal coefficient within a preset time period for the current type of bag under the conditions of a baseline dust thickness and a baseline dust humidity. The abscissa of the curve is the air pressure corresponding to the current type of dust removal gas, and the ordinate is the baseline dust removal coefficient within the preset time period corresponding to the abscissa. The abscissa of the curve starts from the baseline initial air pressure corresponding to the baseline dust thickness and the baseline dust humidity. A calculation unit is used to determine, based on a first ratio of a required dust removal coefficient of a bag to be blown to the actual dust removal coefficient, an air pressure corresponding to a target current type of dust removal gas in a curve of an air pressure corresponding to a current type of dust removal gas and a benchmark dust removal coefficient within a preset time period, a ratio of the benchmark dust removal coefficient within a preset time period corresponding to the air pressure corresponding to the target current type of dust removal gas to the benchmark dust removal coefficient within a preset time period corresponding to the baseline initial air pressure, K, where K is 1.07-1.27 times the first ratio; Calculate the dust removal air pressure of the bag to be blown after adjustment ; in, The air pressure corresponding to the current type of dust removal gas.

9. The cleaning system for bags in a bag filter according to claim 7, characterized in that: The first calculation module is based on the following formula: P is the initial dust removal pressure of the bag to be blown; is the baseline initial air pressure; is the baseline dust thickness; is the baseline dust humidity; The dust thickness on the surface of the bag to be blown; The surface dust humidity of the bag to be blown; is the thickness correction factor; is the humidity correction factor.

10. A method for cleaning bags in a bag filter, characterized in that: A system for cleaning bags in a bag filter according to any one of claims 1 to 9, wherein the cleaning method comprises: Step 1: Open the dust bag to be removed by using the bag opening device (1); Step 2: Arrange multiple high-temperature radiation lamps inside and outside the dust bag to be removed to dry the dust bag; Step 3: Compressed air is introduced into the dust-blowing device (2) to perform rotary cleaning inside the dust bag; Step 4: Close the bag opening device (1) and install the dust bag to be removed into the shaking device to shake off the dust.

Citation Information

Patent Citations

  • An anti-counterfeiting marking device

    CN108382067B

  • Cloth bag cleaning device

    CN214415864U