A dust removal device and method for a hot galvanizing process

Abstract

The present application relates to dust removal device technical field, specifically to a kind of dust removal device and method for hot galvanizing process, including installation main box and support main frame, installation main box is fixedly installed on support main frame, still include working assembly;Working assembly includes external pipe, rotating mounting frame, index motor, bag cage, filter bag, adaptive slot sleeve, dismounting component, cleaning component and self-rotation operation component;External pipe is fixedly installed at the top of installation main box, rotating mounting frame is rotatably installed in installation main box, the output shaft of index motor is connected with rotating mounting frame, index motor is fixedly installed at the top of installation main box, filter bag is sleeved on bag cage, adaptive slot sleeve is fixedly installed at the bottom of each bag cage, dismounting component is connected with installation main box, cleaning component is connected with installation main box, self-rotation operation component is connected with installation main box, the filter body of working state can be cleaned and detected by the component provided, ensure the working efficiency and continuity of filter device.

Description

Technical Field

[0001] This invention relates to the field of dust removal equipment technology, and in particular to a dust removal device and method for hot-dip galvanizing processes. Background Technology

[0002] Currently, the dust removal equipment used in hot-dip galvanizing processes mainly adopts a technology solution centered on pulse jet bag filters. These filters efficiently capture zinc pot flue gas through a collection hood, physically filter dust-laden gas using filter bags, and periodically remove zinc dust adhering to the surface of the filter bags using a pulse jet cleaning system. This achieves effective purification and organized emission of the flue gas generated during the hot-dip galvanizing production process. While improving the workshop working environment and protecting the occupational health of operators, this significantly reduces dust emissions into the atmosphere, helping enterprises meet increasingly stringent environmental regulations. Furthermore, by recycling the zinc-containing dust, it promotes resource recycling and achieves synergistic development of economic and environmental benefits.

[0003] In existing hot-dip galvanizing dust collection systems, when a filter bag becomes damaged, clogged, or caked due to long-term use, operators often struggle to pinpoint the specific problem bag immediately. This usually necessitates a shutdown, requiring manual entry into the dust collection chamber for a step-by-step inspection, which is inefficient and labor-intensive. Furthermore, since the filter bags are installed inside the chamber with a fixed, integrated structure, replacing or maintaining them often necessitates interrupting the entire dust collection system (i.e., shutting down). For hot-dip galvanizing production lines, such shutdowns directly lead to zinc fume spillage, causing environmental pollution and forcing upstream hot-dip galvanizing processes to slow down or halt, severely impacting work efficiency and continuity. Summary of the Invention

[0004] The purpose of this invention is to provide a dust removal device and method for hot-dip galvanizing processes, which can clean and inspect the filter body in operation through provided components, so that when the filter body has a problem, the corresponding filter element can be quickly replaced and maintained without affecting normal filtration, thus ensuring the working efficiency and continuity of the filtration device.

[0005] To achieve the above objectives, the present invention provides a dust removal device and method for hot-dip galvanizing processes, including a main mounting box and a supporting main frame, wherein the main mounting box is fixedly mounted on the supporting main frame, and also includes working components;

[0006] The working components include external pipes, a transfer frame, a rotary motor, a bag cage, filter bags, an adapter sleeve, disassembly and assembly components, cleaning components, and a self-rotating operation component;

[0007] The external pipe is fixedly installed on the top of the main installation box. The transfer frame is rotatably installed inside the main installation box. The output shaft of the indexing motor is connected to the transfer frame. The indexing motor is fixedly installed on the top of the main installation box. The transfer frame has three installation stations for assembling the bag cages. The bag cages can rotate at the corresponding installation stations. The main installation box has two front side slots and one rear side slot. The three side slots correspond one-to-one with the three installation stations of the transfer frame. The filter bags are fitted over the bag cages. Each bag cage has a matching slot fixedly installed at its bottom. The disassembly and assembly component is connected to the main installation box and is used to drive the bag cages at the designated stations to slide up and down. The cleaning component is connected to the main installation box and is used to clean and inspect the filter bags at the designated stations. The self-rotating operation component is connected to the main installation box and is used to drive the bag cages at the designated stations to rotate.

[0008] The assembly / disassembly components include a lifting main board, a lead screw lifting mechanism, an assembly frame, a regulating cylinder, and mating parts. The lifting main board is slidably mounted on the main support frame. The lead screw lifting mechanism is connected to the lifting main board and is used to drive the lifting main board to move. The assembly frame is slidably mounted on the lifting main board. The output end of the regulating cylinder is connected to the assembly frame, and the regulating cylinder is fixedly mounted on the lifting main board. The mating parts are connected to the assembly frame and are used to clamp the bag cage at a designated workstation.

[0009] The cleaning component includes a side guide box, a side shifting frame, and a screw-driven side shifting mechanism. The side guide box is fixedly installed on one side of the main mounting box and mates with the rear groove of the main mounting box. The side shifting frame is slidably installed on the side guide box. The screw-driven side shifting mechanism is connected to the side shifting frame and is used to drive the side shifting frame to move.

[0010] The self-rotating operating component includes a movable frame, a screw control mechanism, driving rotating columns, and a driving component. The movable frame is slidably mounted on the top of the main support frame. The screw control mechanism is connected to the movable frame and is used to drive the movable frame to move. The two driving rotating columns are rotatably mounted on both sides of the movable frame, and the driving rotating columns cooperate with the matching slots provided at the bottom of the corresponding bag cage. The driving component is connected to the movable frame and is used to drive the two driving rotating columns to rotate.

[0011] The mating components include a clamping frame, a movable gear table, a drive gear, a drive motor, a rotary drive column, and a rotary drive motor. Two clamping frames are slidably mounted on the assembly frame. The movable gear table is fixedly mounted on the side of each clamping frame. The drive gear meshes with the two movable gear tables on its upper and lower sides, and is rotatably mounted on the assembly frame. The output shaft of the drive motor is connected to the drive gear, and the drive motor is fixedly mounted on the assembly frame. The rotary drive column is rotatably mounted on the assembly frame and mates with the adapter slot provided at the bottom of the corresponding bag cage. The output shaft of the rotary drive motor is connected to the rotary drive column, and the rotary drive motor is fixedly mounted on one side of the assembly frame.

[0012] The cleaning component further includes a scraper, a spring, a cleaning brush, a real-time monitoring module, and a receiving component. The scraper is slidably mounted on the side of the side-shifting frame near the bag cage. The two sides of the spring are respectively connected to the scraper and the side-shifting frame. The cleaning brush is fixedly mounted on the side of the scraper near the bag cage. The real-time monitoring module is mounted on the side of the side-shifting frame near the bag cage. The receiving component is connected to the side guide box and is used to attract and collect dust and impurities inside the side guide box.

[0013] The driving component includes a rotating bevel gear, a synchronous shaft, a synchronous bevel gear, and a synchronous motor. The rotating bevel gear is fixedly installed at the bottom of each driving column. The synchronous shaft is rotatably installed inside the movable frame. The two synchronous bevel gears mesh with the two rotating bevel gears respectively and are fixedly sleeved on both sides of the synchronous shaft. The output shaft of the synchronous motor is connected to the synchronous shaft. The synchronous motor is fixedly installed on one side of the movable frame.

[0014] The receiving component includes a receiving base box, a barrier filter plate, an external conduit, and a control valve. The receiving base box is connected to the side guide box and is fixedly installed on one side of the main support frame. The barrier filter plate is fixedly installed inside the receiving base box. The external conduit is installed on one side of the receiving base box. The control valve is installed on the external conduit.

[0015] The working components further include a connecting main frame, an access channel, a sensing module, an interception bracket, and a lead screw moving mechanism. The connecting main frame is fixedly installed on one side of the mounting main box and is connected to the two front slots of the mounting main box. The access channel is fixedly installed on one side of the connecting main frame. The sensing module is installed on the access channel. The interception bracket is slidably installed on the connecting main frame. The lead screw moving mechanism is connected to the interception bracket and is used to drive the interception bracket to move.

[0016] One dust removal method for a hot-dip galvanizing process, employing the dust removal device for a hot-dip galvanizing process as described in claim 1, includes the following steps:

[0017] The negative pressure equipment connected to the external pipeline draws in the exhaust gas containing smoke and dust from the two front slots of the main installation box, and then cooperates with the bag cages and filter bags installed at the two corresponding installation positions of the transfer frame.

[0018] The bag cage and the filter bag rotate through the self-rotating working component during operation;

[0019] When the cleaning effect of the two bag cages and the filter bag decreases significantly, the indexing motor will drive the transfer frame to change the installation position.

[0020] The corresponding bag cages and filter bags that have completed the workstation change can be cleaned by the cleaning component, while the remaining bag cages and filter bags can continue to filter normally.

[0021] When the cleaning component detects that the corresponding bag cage and filter bag have a problem and need to be replaced during the cleaning process, the disassembly and assembly component will directly drive the bag cage and filter bag on the corresponding installation station to move down.

[0022] After the bag cage and filter bag are lowered, they will be located at the bottom of the main support frame. Then, they will be replaced and maintained by the corresponding personnel. After the replacement and maintenance operation is completed, the disassembly and assembly components will lift the corresponding bag cage and filter bag to continue the corresponding filtration work.

[0023] This invention discloses a dust removal device and method for hot-dip galvanizing processes. In actual operation, a negative pressure device connected to an external pipeline draws in exhaust gas containing smoke and dust from two front slots on the main installation box. This gas then cooperates with the bag cages and filter bags installed at corresponding installation positions on the transfer frame. During operation, the bag cages and filter bags rotate via a self-rotating working component. When the cleaning effect of two bag cages and filter bags significantly decreases, the rotary motor drives the transfer frame to switch installation positions. The corresponding bag cage and filter bag after the position switch can be cleaned by a cleaning component, while the remaining bag cages and filter bags continue to filter normally. When the cleaning process detects a problem with the corresponding bag cage and filter bag that requires replacement, the disassembly and assembly component will directly move the bag cage and filter bag at the corresponding installation station downwards. After the downward movement, the bag cage and filter bag will be located at the bottom of the main support frame, where they can be replaced and maintained by the corresponding personnel. After the replacement and maintenance operation is completed, the disassembly and assembly component will then lift the corresponding bag cage and filter bag to continue the corresponding filtration work. This enables the filter body to be cleaned and inspected in operation through the provided components, allowing for quick replacement and maintenance of the corresponding filter elements without affecting normal filtration when a problem occurs, thus ensuring the working efficiency and continuity of the filtration device. Attached Figure Description

[0024] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the accompanying drawings used in the description of the embodiments or the prior art will be briefly introduced below.

[0025] Figure 1 This is a schematic diagram of the overall structure of the dust removal device for the hot-dip galvanizing process of the present invention.

[0026] Figure 2 This is a schematic diagram of the installation structure of the receiving base box of the present invention.

[0027] Figure 3 This is a structural schematic diagram of the installation main box of the present invention cut open from the side.

[0028] Figure 4 This is a structural schematic diagram of the support frame of the present invention cut open from the side.

[0029] Figure 5 This is the invention Figure 4 Enlarged view of point A.

[0030] Figure 6 This is a schematic diagram of the structure of the transfer frame of the present invention cut out from the side.

[0031] Figure 7 This is a schematic diagram of the structure of the bag cage of the present invention with its side cut open.

[0032] Figure 8 This is a schematic diagram of the assembly frame of the present invention cut out from the side.

[0033] Figure 9 This is the invention Figure 8 Enlarged view of point B.

[0034] Figure 10 This is a structural schematic diagram of the top section of the main mounting box and the side guide box of the present invention.

[0035] Figure 11 This is a schematic diagram of the structure of the receiving base box of the present invention cut open from the side.

[0036] Figure 12 This is a flowchart of the dust removal method for the hot-dip galvanizing process of the present invention.

[0037] In the diagram: 101-Main mounting box, 102-Main support frame, 103-External pipe, 104-Transfer frame, 105-Inverter motor, 106-Bag cage, 107-Filter bag, 108-Adaptor sleeve, 201-Lifting main board, 202-Screw lifting mechanism, 203-Assembly frame, 204-Control cylinder, 301-Side guide box, 302-Side shifting frame, 303-Screw side shifting mechanism, 304-Scraper plate, 305-Spring, 306-Cleaning brush, 307-Real-time monitoring module, 401-Movable frame, 402-Screw control. Mechanism, 403-driving column, 501-clamping frame, 502-moving gear table, 503-drive gear, 504-drive motor, 505-rotating drive column, 506-rotating drive motor, 601-with rotating bevel gear, 602-synchronous rotating shaft, 603-synchronous bevel gear, 604-synchronous motor, 701-receiving base box, 702-barrier filter plate, 703-external conduit, 704-control valve, 801-connecting main frame, 802-access channel, 803-sensing module, 804-interception bracket, 805-screw moving mechanism; Detailed Implementation

[0038] Embodiments of the present invention are described in detail below, examples of which are illustrated in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain the present invention, and should not be construed as limiting the present invention.

[0039] In the description of this invention, it should be understood that "a plurality of" means two or more, unless otherwise explicitly specified.

[0040] Please see Figures 1 to 11This invention provides a dust removal device and method for hot-dip galvanizing processes: It includes a main housing 101, a supporting main frame 102, and working components. The working components include an external pipe 103, a transfer frame 104, a rotary motor 105, a bag cage 106, filter bags 107, an adapter sleeve 108, disassembly / assembly components, a cleaning component, and a self-rotating component. The disassembly / assembly components include a lifting main plate 201, a screw lifting mechanism 202, an assembly frame 203, a regulating cylinder 204, and cooperating parts. The cleaning... The components include a side guide box 301, a side shifting frame 302, and a lead screw side shifting mechanism 303. The self-rotating working component includes a movable frame 401, a lead screw adjusting mechanism 402, a driving rotating column 403, and a driving component. The cooperating components include a clamping frame 501, a moving gear table 502, a drive gear 503, a drive motor 504, a rotating drive column 505, and a rotating drive motor 506. The cleaning component also includes a scraper 304, a spring 305, a cleaning brush 306, a real-time monitoring module 307, and a receiving component. The driving components include a rotating bevel gear 601, a synchronous rotating shaft 602, a synchronous bevel gear 603, and a synchronous motor 604. The housing components include a housing base box 701, a barrier filter plate 702, an external conduit 703, and a control valve 704. The aforementioned solution solves the problem in existing hot-dip galvanizing dust removal devices where, during actual operation, when a filter bag becomes damaged, clogged, or caked due to long-term use, operators find it difficult to accurately locate the specific problematic filter bag in a timely manner. This usually necessitates a shutdown, requiring manual entry into the housing for inspection, which is inefficient and labor-intensive. Furthermore, since the filter bag 107 is installed inside the housing and uses an integral fixed structure, replacing or maintaining the filter bag 107 often requires interrupting the entire dust removal system (i.e., shutting down). For hot-dip galvanizing production lines, a shutdown of the dust removal system directly leads to zinc fume overflow, causing environmental pollution and forcing upstream hot-dip galvanizing production processes to slow down or suspend, severely impacting work efficiency and continuity.

[0041] Furthermore, the main mounting box 101 is fixedly mounted on the main support frame 102, the external pipe 103 is fixedly mounted on the top of the main mounting box 101, the transfer frame 104 is rotatably mounted inside the main mounting box 101, the output shaft of the indexing motor 105 is connected to the transfer frame 104, the indexing motor 105 is fixedly mounted on the top of the main mounting box 101, the transfer frame 104 is provided with three mounting stations for assembling the bag cage 106, the bag cage 106 can rotate in the corresponding mounting station, and the main mounting box 101 is provided with two front side slots and One rear groove and three side grooves correspond one-to-one with the three installation positions of the transfer frame 104. The filter bag 107 is sleeved on the bag cage 106. The bottom of each bag cage 106 is fixedly installed with the adapter sleeve 108. The disassembly and assembly component is connected to the installation main box 101 and is used to drive the bag cage 106 at the designated position to slide up and down. The cleaning component is connected to the installation main box 101 and is used to clean and inspect the filter bag 107 at the designated position. The self-rotation operation component is connected to the installation main box 101 and is used to drive the bag cage 106 at the designated position to rotate.

[0042] In this embodiment, when in use, the two front side slots and one rear side slot of the mounting main box 101 correspond to two suction stations and an adjustment station, respectively. The three installation stations of the transfer frame 104 correspond to the three side slots of the mounting main box 101, and the three installation stations of the transfer frame 104 are also provided with corresponding outer slots. By providing the outer slots, they can cooperate with the corresponding three side slots of the mounting main box 101.

[0043] The bag cage 106 and the filter bag 107 form a filtration unit. The bag cage 106 opens the filter bag 107 to prevent the filter bag 107 from deforming when dust is sucked in by negative pressure. The corresponding adapter sleeve 108 is fixed at the bottom of the bag cage 106. The adapter sleeve 108 is provided with a hexagonal groove to facilitate the subsequent matching of corresponding structures.

[0044] The bag cage 106 and the filter bag 107 can be driven by the self-rotating working component during filtration, so that the filter bag 107 can continuously and evenly cooperate with the inhaled dust. The cleaning component is used to inspect and clean the filter bag 107 in the debugging position to ensure that the filter bag 107 can work stably for a long time.

[0045] In actual operation, the negative pressure device connected to the external pipe 103 draws in the exhaust gas containing smoke and dust from the two front slots of the main installation box 101. This gas then cooperates with the bag cages 106 and filter bags 107 installed at the corresponding two installation positions on the transfer frame 104. During operation, the bag cages 106 and filter bags 107 rotate via the self-rotating working component. When the cleaning effect of the two bag cages 106 and filter bags 107 significantly decreases, the rotary motor 105 drives the transfer frame 104 to switch installation positions. The corresponding bag cage 106 and filter bag 107 after the position switch can be cleaned by the cleaning component, while the remaining bag cages 106 and filter bags 107 can continue normal filtration. When a problem is detected during the cleaning process and the corresponding bag cage 106 and filter bag 107 need to be replaced, the disassembly and assembly component will directly move the bag cage 106 and filter bag 107 at the corresponding installation station downwards. After the downward movement is completed, the bag cage 106 and filter bag 107 will be located at the bottom of the support frame 102, and then replaced and maintained by the corresponding personnel. After the replacement and maintenance operation is completed, the disassembly and assembly component will lift the corresponding bag cage 106 and filter bag 107 to continue the corresponding filtration work. This enables the filter body in working condition to be cleaned and inspected by the provided component, so that when the corresponding filter body has a problem, the corresponding filter element can be quickly replaced and maintained without affecting normal filtration, ensuring the working efficiency and continuity of the filtration device.

[0046] Furthermore, the lifting main plate 201 is slidably mounted on the supporting main frame 102; the screw lifting mechanism 202 is connected to the lifting main plate 201 and is used to drive the lifting main plate 201 to move; the assembly frame 203 is slidably mounted on the lifting main plate 201; the output end of the regulating cylinder 204 is connected to the assembly frame 203, and the regulating cylinder 204 is fixedly mounted on the lifting main plate 201; the mating component is connected to the assembly frame 203 and is used to clamp the bag cage 106 at the designated workstation.

[0047] Furthermore, the two clamping brackets 501 are slidably mounted on the assembly frame 203; each clamping bracket 501 has a movable gear 502 fixedly mounted on its side; the drive gear 503 meshes with the two movable gears 502 on its upper and lower sides respectively, and the drive gear 503 is rotatably mounted on the assembly frame 203; the output shaft of the drive motor 504 is connected to the drive gear 503, and the drive motor 504 is fixedly mounted on the assembly frame 203; the rotary drive column 505 is rotatably mounted on the assembly frame 203, and the rotary drive column 505 cooperates with the adapter sleeve 108 provided at the bottom of the corresponding bag cage 106; the output shaft of the rotary drive motor 506 is connected to the rotary drive column 505, and the rotary drive motor 506 is fixedly mounted on one side of the assembly frame 203.

[0048] In this embodiment, the lead screw lifting mechanism 202 is mainly composed of a lead screw and a motor. The motor drives the lead screw to rotate, thereby driving the corresponding plate. The assembly frame 203 is slidably arranged on the lifting main board 201. The assembly frame 203 is driven by the regulating cylinder 204.

[0049] The assembly frame 203 is provided with two clamping frames 501 and one rotary drive column 505. The two clamping frames 501 are driven by the movable gear table 502 and the drive gear 503. The drive gear 503 is driven by the drive motor 504. The rotary drive column 505 is driven by the rotary drive motor 506. The top of the rotary drive column 505 is provided with a corresponding hexagonal platform, which is adapted to the hexagonal slot of the adapter sleeve 108.

[0050] When it is necessary to clean the bag cage 106 and the filter bag 107 at the debugging station, the rotary drive column 505 can drive the corresponding bag cage 106 and filter bag 107 to rotate under the drive of the rotary drive motor 506, and then cooperate with the cleaning component to clean and inspect the filter bag 107 accordingly. When it is necessary to change the station, the rotary drive column 505 and the corresponding structure can be pulled out from the adapter sleeve 108 by the downward movement of the assembly frame 203.

[0051] The bottom of the bag cage 106 is also provided with a stepped inner ring groove. When the clamping frames 501 come close to each other, the bag cage 106 can be clamped and limited by the two clamping frames 501, so that when the lifting main board 201 moves down, the bag cage 106 can be pulled out from the installation position of the transfer frame 104, realizing the quick disassembly of the bag cage 106 and the filter bag 107. When installation is required, the clamping and limiting of the clamping frames 501 can be combined with the upward movement of the lifting main board 201 to push the corresponding bag cage 106 and filter bag 107 into the corresponding installation position of the transfer frame 104.

[0052] The vertical movement of the assembly frame 203 allows the clamping frame 501 and the rotating drive column 505 to be moved downwards and retracted, so that the bag cage 106 and the filter bag 107 in the transfer frame 104 will not be interfered with when changing work positions. At the same time, the disassembly and installation can be completed by simply moving them horizontally.

[0053] Furthermore, the side guide box 301 is fixedly installed on one side of the mounting main box 101, and the side guide box 301 cooperates with the rear groove of the mounting main box 101; the side shifting frame 302 is slidably installed on the side guide box 301; the lead screw side shifting mechanism 303 is connected to the side shifting frame 302 and is used to drive the side shifting frame 302 to move.

[0054] Furthermore, the scraper plate 304 is slidably mounted on the side of the side-shifting frame 302 near the bag cage 106; the two sides of the spring 305 are respectively connected to the scraper plate 304 and the side-shifting frame 302; the cleaning brush 306 is fixedly mounted on the side of the scraper plate 304 near the bag cage 106; the real-time monitoring module 307 is mounted on the side of the side-shifting frame 302 near the bag cage 106; the receiving component is connected to the side guide box 301 and is used to attract and collect dust and impurities inside the side guide box 301.

[0055] Furthermore, the receiving base box 701 is connected to the side guide box 301 and is fixedly installed on one side of the supporting main frame 102; the barrier filter plate 702 is fixedly installed inside the receiving base box 701; the external conduit 703 is installed on one side of the receiving base box 701; and the control valve 704 is installed on the external conduit 703.

[0056] In this embodiment, the screw lateral shift mechanism 303 and the screw lifting mechanism 202 have the same structural principle. The lateral shift frame 302 is equipped with the scraper plate 304, the cleaning brush 306, and the real-time monitoring module 307. The scraper plate 304 can rebound to a certain extent through the spring 305, ensuring the stable cooperation between the scraper plate 304 and the cleaning brush 306 and the outer ring of the filter bag 107. When it is necessary to clean the outer ring of the filter bag 107 in the debugging position, the lateral shift frame 302 will move under the drive of the screw lateral shift mechanism 303, thereby driving the scraper plate 304 and the cleaning brush 306 to cooperate with the outer ring of the filter bag 107. The brush 306 contacts and engages with the outer ring of the corresponding filter bag 107. When the filter bag 107 rotates with the bag cage 106, the scraper 304 and the brush 306 can clean the dust and impurities on the outside of the filter bag 107. After the scraper 304 and the brush 306 have finished cleaning, the real-time monitoring module 307 can scan and detect the filter bag 107 to facilitate subsequent judgment by the operator. The real-time monitoring module 307 mainly consists of a lighting mechanism and an image acquisition and analysis module. It judges the actual state of the filter bag 107 by acquiring and analyzing the image information of the filter bag 107.

[0057] Meanwhile, the real-time monitoring module 307 adopts non-contact optical detection technology, and its data acquisition is achieved through the following collaborative methods:

[0058] Illumination-assisted acquisition: The built-in lighting mechanism (such as a high-brightness LED light source) actively supplements the light during detection to eliminate the interference of unstable ambient light in the hot-dip galvanizing workshop (such as zinc liquid radiation light and shadow obstruction) on imaging, ensuring that the acquired image has uniform illumination and highlighting the texture details and attachment characteristics of the filter bag surface.

[0059] Dynamic image acquisition: The image acquisition and analysis module (usually an industrial-grade CCD or CMOS camera) takes continuous pictures while the filter bag 107 is rotating. Since the filter bag rotates with the bag cage 106, the camera can capture complete image information of the 360-degree outer cylindrical surface of the filter bag after a single cleaning action, avoiding blind spots caused by the filter bag being fixed.

[0060] Multi-dimensional data recording: The collected data includes not only visible light photographs, but may also include spectral information of specific wavelengths, which can be used to analyze changes in the thickness of dust accumulation or the transmittance of filter bag material.

[0061] The acquired image data is processed using algorithms built-in or from a host computer. The specific analysis logic is as follows:

[0062] Preprocessing and enhancement: First, the original image is processed by noise reduction, contrast enhancement and other processes to filter out noise caused by zinc dust reflection and enhance the surface contour and defect edges of the filter bag.

[0063] Feature extraction and segmentation:

[0064] Surface dust load analysis: By identifying differences in grayscale values ​​or textures on the filter bag surface, the coverage and thickness distribution of residual dust around the outer ring of the filter bag are calculated. For example, clean areas and dusty areas will show obvious color differences or differences in texture density on the image.

[0065] Damage and Defect Identification: Edge detection algorithms are used to extract abnormal linear or porous features from the surface of the filter bag. Damage is typically manifested as abrupt changes in grayscale values ​​or interruptions in texture.

[0066] Structural morphology analysis: Identify whether the filter bag has structural abnormalities such as wrinkles, collapse, or detachment from the bag cage.

[0067] The "actual state" of the filter bag is determined by comparing the analysis results with preset thresholds or models. The specific basis and scheme are as follows:

[0068] Cleanliness evaluation:

[0069] Basis: The dust coverage rate (such as the average gray value per unit area) obtained by comparing image analysis with the baseline value of a standard clean filter bag.

[0070] Judgment scheme: If the residual dust area exceeds the set threshold (for example, the dust accumulation on the filter bag surface exceeds 30%), the system determines that the cleaning is not thorough and prompts that the cleaning should be repeated or the dust removal mechanism should be checked.

[0071] Damage and lifespan warning:

[0072] Basis: Abnormally high light transmittance was detected on the surface of the filter bag due to through-holes, cracks, or localized wear.

[0073] Judgment scheme: Once damage characteristics are identified, the system immediately marks the filter bag as "failed" and outputs an alarm signal. Based on the area and location of the damaged area, it determines whether emergency replacement is necessary or continued monitoring for a period of time is required.

[0074] State classification output:

[0075] Basis: Establish a filter bag status database by combining dust load, damage status, and filter bag morphology (such as whether it is flat).

[0076] Judgment scheme: Through AI or threshold comparison, the status of filter bags is divided into multiple levels such as "normal", "needs cleaning", "slight wear" and "failed and needs to be replaced". The visualization results (such as the unfolded diagram of the filter bag with the defect location marked) and analysis report are pushed to the operator to provide accurate data support for subsequent maintenance decisions (whether to trigger the replacement procedure).

[0077] A receiving base box 701 is provided at the bottom of the side guide box 301. The receiving base box 701 is provided with a corresponding door to facilitate cleaning of the interior by operators. A barrier filter plate 702 is fixedly installed inside the receiving base box 701. The barrier filter plate 702 has multiple fine holes to block inhaled impurities, allowing them to concentrate inside the receiving base box 701. An external conduit 703 and a control valve 704 are also installed at the rear of the receiving base box 701. The external conduit 703 is used to connect to a corresponding negative pressure device. The negative pressure generated by the negative pressure device can absorb the dust and impurities in the designated work area of ​​the side guide and the transfer frame 104 into the receiving bottom box 701. In actual operation, a corresponding air inlet pipe can be added to the top of the debugging work station to further blow off and clean the impurities attached to the corresponding filter bag 107 through the introduction of gas. The control valve 704 is used to adjust the negative pressure accordingly. At the same time, a corresponding switch structure is also provided on the top of the receiving bottom box 701 to cut off the top channel of the receiving bottom box 701, so as to facilitate the operator to clean the inside of the receiving bottom box 701.

[0078] Furthermore, the movable frame 401 is slidably mounted on the top of the main support frame 102; the lead screw adjustment mechanism 402 is connected to the movable frame 401 and is used to drive the movable frame 401 to move; the two driving rotating columns 403 are rotatably mounted on both sides of the movable frame 401, and the driving rotating columns 403 cooperate with the corresponding adapter slots 108 provided at the bottom of the bag cage 106; the driving component is connected to the movable frame 401 and is used to drive the two driving rotating columns 403 to rotate.

[0079] Furthermore, each of the driving rotating columns 403 is fixedly installed with a rotating bevel gear 601 at its bottom; the synchronous rotating shaft 602 is rotatably installed inside the movable frame 401; the two synchronous bevel gears 603 respectively mesh with the two rotating bevel gears 601 and are fixedly sleeved on both sides of the synchronous rotating shaft 602; the output shaft of the synchronous motor 604 is connected to the synchronous rotating shaft 602; the synchronous motor 604 is fixedly installed on one side of the movable frame 401.

[0080] In this embodiment, the screw adjustment mechanism 402 and the screw lateral movement mechanism 303 have similar structural principles. Two driving rotating columns 403 are provided on both sides of the movable frame 401. The driving rotating columns 403 have the same structural function as the rotating drive column 505. The two driving rotating columns 403 cooperate with the corresponding synchronous bevel gears 603 provided on the synchronous rotating shaft 602 through the rotating bevel gears 601 provided at the bottom. The synchronous rotating shaft 602 is driven by the synchronous motor 604. When the synchronous motor 604 drives the synchronous rotating shaft 602 to rotate, the two synchronous bevel gears 603 on the synchronous rotating shaft 602 can drive the corresponding rotating bevel gears 601 to rotate, thereby simultaneously driving the two driving rotating columns 403 to rotate.

[0081] The two drive columns 403 can move up and down with the movable frame 401. When the transfer frame 104 rotates and changes position, the drive columns 403 can move down and retract through the movable frame 401. After the transfer frame 104 completes the workstation change, the drive columns 403 can cooperate with the corresponding adapter sleeve 108 through the upward movement of the movable frame 401, thereby realizing the drive of the corresponding bag cage 106.

[0082] Preferably, the working components provided by the present invention further include a main frame 801, an access channel 802, a sensing module 803, an interception bracket 804, and a lead screw moving mechanism 805.

[0083] Furthermore, the main connecting frame 801 is fixedly installed on one side of the main mounting box 101, and the main connecting frame 801 is connected to the two front slots of the main mounting box 101; the access channel 802 is fixedly installed on one side of the main connecting frame 801; the sensing module 803 is installed on the access channel 802; the interception bracket 804 is slidably installed on the main connecting frame 801; the lead screw moving mechanism 805 is connected to the interception bracket 804 and is used to drive the interception bracket 804 to move.

[0084] In this embodiment, the main frame 801 introduces the corresponding exhaust gas through the access channel 802. The access channel 802 is equipped with a corresponding sensing module 803. The sensing module 803 is mainly used to monitor the dust content and airflow velocity of the introduced exhaust gas. By monitoring the airflow velocity, the working status of the corresponding filter bag 107 can be determined. When the airflow velocity is detected to decrease significantly, it indicates that the corresponding filter bag 107 is blocked and needs to be cleaned.

[0085] The screw moving mechanism 805 and the screw adjusting mechanism 402 have the same structural principle. The actual conduction of the main frame 801 can be changed by sliding the intercepting bracket 804. When the sensing module 803 detects that the dust content in the exhaust gas is lower than the set threshold, the intercepting bracket 804 can intercept one side of the main frame 801, so that the dust is removed only through a set of bag cages 106 and filter bags 107. At this time, the negative pressure output can also be reduced accordingly. Conversely, when the dust content is too high, the intercepting bracket 804 can connect the two sides of the main frame 801, and then the dust is removed through two sets of bag cages 106 and filter bags 107. This allows the structure to be flexibly adjusted according to the actual situation.

[0086] Please see Figure 11 A dust removal device and method for hot-dip galvanizing process, comprising the following steps:

[0087] S1: The negative pressure equipment connected to the external pipe 103 draws the exhaust gas containing smoke and dust from the two front slots provided in the main installation box 101, and then cooperates with the bag cage 106 and filter bag 107 installed on the two corresponding installation positions of the transfer frame 104.

[0088] S2: When the bag cage 106 and the filter bag 107 are in operation, they rotate through the self-rotating working component;

[0089] S3: When the cleaning effect of the two bag cages 106 and the filter bag 107 decreases significantly, the indexing motor 105 will drive the transfer frame 104 to change the installation position.

[0090] S4: The corresponding bag cage 106 and filter bag 107 that have completed the workstation change can be cleaned by the cleaning component, while the remaining bag cage 106 and filter bag 107 can continue to filter normally.

[0091] S5: When the cleaning component detects that the corresponding bag cage 106 and filter bag 107 have problems and need to be replaced during the cleaning process, the disassembly and assembly component will directly drive the bag cage 106 and filter bag 107 on the corresponding installation station to move down.

[0092] S6: After the bag cage 106 and the filter bag 107 are lowered, they will be located at the bottom of the main support frame 102. Then, they will be replaced and maintained by the corresponding personnel. After the replacement and maintenance operation is completed, the disassembly and assembly components will lift the corresponding bag cage 106 and filter bag 107 to continue the corresponding filtration work.

[0093] The above-disclosed embodiments are merely one or more preferred embodiments of this application and should not be construed as limiting the scope of this application. Those skilled in the art can understand that all or part of the processes for implementing the above embodiments and equivalent changes made in accordance with the claims of this application still fall within the scope of this application.

Claims

1. A dust removal device for hot-dip galvanizing processes, comprising a main mounting box and a supporting main frame, wherein the main mounting box is fixedly mounted on the supporting main frame, characterized in that, It also includes working components; The working components include external pipes, a transfer frame, a rotary motor, a bag cage, filter bags, an adapter sleeve, disassembly and assembly components, cleaning components, and a self-rotating operation component; The external pipe is fixedly installed on the top of the main installation box. The transfer frame is rotatably installed inside the main installation box. The output shaft of the indexing motor is connected to the transfer frame. The indexing motor is fixedly installed on the top of the main installation box. The transfer frame has three installation stations for assembling the bag cages. The bag cages can rotate at the corresponding installation stations. The main installation box has two front side slots and one rear side slot. The three side slots correspond one-to-one with the three installation stations of the transfer frame. The filter bags are fitted over the bag cages. Each bag cage has a matching slot fixedly installed at its bottom. The disassembly and assembly component is connected to the main installation box and is used to drive the bag cages at the designated stations to slide up and down. The cleaning component is connected to the main installation box and is used to clean and inspect the filter bags at the designated stations. The self-rotating operation component is connected to the main installation box and is used to drive the bag cages at the designated stations to rotate.

2. The dust removal device for hot-dip galvanizing process as described in claim 1, characterized in that, The assembly / disassembly components include a lifting main board, a lead screw lifting mechanism, an assembly frame, a regulating cylinder, and mating parts. The lifting main board is slidably mounted on the main support frame. The lead screw lifting mechanism is connected to the lifting main board and is used to drive the lifting main board to move. The assembly frame is slidably mounted on the lifting main board. The output end of the regulating cylinder is connected to the assembly frame, and the regulating cylinder is fixedly mounted on the lifting main board. The mating parts are connected to the assembly frame and are used to clamp the bag cage at a designated workstation.

3. The dust removal device for hot-dip galvanizing process as described in claim 1, characterized in that, The cleaning component includes a side guide box, a side shifting frame, and a screw-driven side shifting mechanism. The side guide box is fixedly installed on one side of the main mounting box and mates with the rear groove of the main mounting box. The side shifting frame is slidably installed on the side guide box. The screw-driven side shifting mechanism is connected to the side shifting frame and is used to drive the side shifting frame to move.

4. The dust removal device for hot-dip galvanizing process as described in claim 1, characterized in that, The self-rotating operating component includes a movable frame, a screw control mechanism, driving rotating columns, and a driving component. The movable frame is slidably mounted on the top of the main support frame. The screw control mechanism is connected to the movable frame and is used to drive the movable frame to move. The two driving rotating columns are rotatably mounted on both sides of the movable frame, and the driving rotating columns cooperate with the matching slots provided at the bottom of the corresponding bag cage. The driving component is connected to the movable frame and is used to drive the two driving rotating columns to rotate.

5. The dust removal device for hot-dip galvanizing process as described in claim 2, characterized in that, The mating components include a clamping frame, a movable gear table, a drive gear, a drive motor, a rotary drive column, and a rotary drive motor. Two clamping frames are slidably mounted on the assembly frame. The movable gear table is fixedly mounted on the side of each clamping frame. The drive gear meshes with the two movable gear tables on its upper and lower sides, and is rotatably mounted on the assembly frame. The output shaft of the drive motor is connected to the drive gear, and the drive motor is fixedly mounted on the assembly frame. The rotary drive column is rotatably mounted on the assembly frame and mates with the adapter slot provided at the bottom of the corresponding bag cage. The output shaft of the rotary drive motor is connected to the rotary drive column, and the rotary drive motor is fixedly mounted on one side of the assembly frame.

6. The dust removal device for hot-dip galvanizing process as described in claim 3, characterized in that, The cleaning component also includes a scraper, a spring, a cleaning brush, a real-time monitoring module, and a receiving component. The scraper is slidably mounted on the side of the side-shifting frame near the bag cage. The two sides of the spring are respectively connected to the scraper and the side-shifting frame. The cleaning brush is fixedly mounted on the scraper on the side of the scraper near the bag cage. The real-time monitoring module is mounted on the side of the side-shifting frame near the bag cage. The receiving component is connected to the side guide box and is used to attract and collect dust and impurities inside the side guide box.

7. The dust removal device for hot-dip galvanizing process as described in claim 4, characterized in that, The driving component includes a rotating bevel gear, a synchronous shaft, a synchronous bevel gear, and a synchronous motor. The rotating bevel gear is fixedly installed at the bottom of each driving column. The synchronous shaft is rotatably installed inside the movable frame. The two synchronous bevel gears mesh with the two rotating bevel gears respectively and are fixedly sleeved on both sides of the synchronous shaft. The output shaft of the synchronous motor is connected to the synchronous shaft. The synchronous motor is fixedly installed on one side of the movable frame.

8. The dust removal device for hot-dip galvanizing process as described in claim 6, characterized in that, The housing component includes a housing base box, a barrier filter plate, an external conduit, and a control valve. The housing base box is connected to the side guide box and is fixedly installed on one side of the main support frame. The barrier filter plate is fixedly installed inside the housing base box. The external conduit is installed on one side of the housing base box. The control valve is installed on the external conduit.

9. The dust removal device for hot-dip galvanizing process as described in claim 1, characterized in that, The working components also include a connecting main frame, an access channel, a sensing module, an interception bracket, and a lead screw moving mechanism. The connecting main frame is fixedly installed on one side of the mounting main box and is connected to the two front slots of the mounting main box. The access channel is fixedly installed on one side of the connecting main frame. The sensing module is installed on the access channel. The interception bracket is slidably installed on the connecting main frame. The lead screw moving mechanism is connected to the interception bracket and is used to drive the interception bracket to move.

10. A dust removal method for a hot-dip galvanizing process, employing the dust removal device for a hot-dip galvanizing process as described in claim 1, characterized in that, Includes the following steps, The negative pressure equipment connected to the external pipeline draws in the exhaust gas containing smoke and dust from the two front slots of the main installation box, and then cooperates with the bag cages and filter bags installed at the two corresponding installation positions of the transfer frame. The bag cage and the filter bag rotate through the self-rotating working component during operation; When the cleaning effect of the two bag cages and the filter bag decreases significantly, the indexing motor will drive the transfer frame to change the installation position. The corresponding bag cages and filter bags that have completed the workstation change can be cleaned by the cleaning component, while the remaining bag cages and filter bags can continue to filter normally. When the cleaning component detects that the corresponding bag cage and filter bag have a problem and need to be replaced during the cleaning process, the disassembly and assembly component will directly drive the bag cage and filter bag on the corresponding installation station to move down. After the bag cage and filter bag are lowered, they will be located at the bottom of the main support frame. Then, they will be replaced and maintained by the corresponding personnel. After the replacement and maintenance operation is completed, the disassembly and assembly components will lift the corresponding bag cage and filter bag to continue the corresponding filtration work.

Images