Circulating spray dust removal and cooling integrated machine

Abstract

The utility model relates to a circulating type spray dust removal cooling all -in -one, including dust tower, defoaming washing subassembly, spray dust removal subassembly and filter residue net board, is seted up in the front lateral wall of dust tower and is seted up with the sink, is seted up with the through -opening in the sink bottom, is rotatably seted up with the crosspiece on the two inner lateral wall of sink, the crosspiece bottom is provided with the cover that is pressed in the sink bottom and is in contact with the two inner lateral wall of sink, the cover outer lateral wall is with the front lateral wall of dust tower, is seted up with the pressing plate that is pressed on the gap between the cover and the inner lower lateral wall of sink on the front lateral wall of dust tower, and the filter residue net board is fixed with the inner lateral wall of pressing plate through the connecting plate between the cover and the inner lower lateral wall of sink, is seted up with the drive mechanism on the outer lateral wall of dust tower. The utility model has not only can clean or replace the filter element in the filter residue net board in the dust tower for the staff, can also improve the sealing effect of device and outside, avoid the device when carrying out dust removal to converter flue gas, and the beneficial effect that converter flue gas is scattered to the outside through the through -opening and sink.

Description

Technical Field

[0001] This utility model relates to the field of flue gas dust removal technology, specifically to a circulating spray dust removal and cooling integrated machine. Background Technology

[0002] Converter flue gas refers to the thick brown smoke emitted during the converter blowing process. It is a mixture of furnace gas and dust, with CO as the main component, along with small amounts of carbon dioxide and trace amounts of other high-temperature gases and dust. In the dust removal process of converter flue gas, a spray cooling tower is needed to purify the dust in the flue gas. Previous dust removal spray devices could not recycle the dust removal liquid during use, resulting in high water consumption and environmental friendliness. While some existing dust removal spray devices have the ability to recycle liquid, their spray structures mostly use spray discs for dust suppression. A large spray disc area hinders the upward flow of flue gas, while a small spray disc area reduces the dust removal effect, making them impractical.

[0003] To address these technical challenges, existing technology CN220788660U provides a spray cooling tower for converter flue gas dust removal. This tower features multiple second and first water guide pipes arranged in a staggered pattern, fixedly connected to the upper side of the tower's interior. This ensures comprehensive spray dust removal of the flue gas inside the tower while avoiding obstruction of the flow efficiency of the dust-removed flue gas into the outlet pipe. Furthermore, the filter screen effectively filters insoluble substances in industrial water. The filtered industrial water is recycled back into the lower part of the dust removal tower, thus saving industrial water consumption. The flue gas after being sprayed for dust removal is separated into gas and liquid by the demister. By closing the three-way valve and opening the diversion pipe, the industrial water in the outlet pipe can flow into the diversion pipe, which will then divert the industrial water into multiple branch pipes. Finally, multiple nozzles will spray the industrial water from the multiple branch pipes downwards to backwash the demister, thereby maintaining the gas-liquid separation effect of the demister.

[0004] However, there may be some technical problems during its use. For example, when using the device, the sealing baffle needs to be removed from the dust collector tower in order to pull out the filter screen from inside the dust collector tower for cleaning or replacement. After cleaning or replacing the filter screen, the staff needs to put the filter screen back into its initial position inside the dust collector tower before reinstalling the sealing baffle back onto the dust collector tower. However, this may make the cleaning or replacement of the filter screen inside the dust collector tower more cumbersome and inconvenient for the staff to clean or replace the filter elements in the filter screen inside the dust collector tower. Utility Model Content

[0005] This utility model addresses the shortcomings of existing technologies by providing a circulating spray dust removal and cooling integrated machine that not only facilitates the cleaning or replacement of filter elements in the filter screen plate inside the dust removal tower by staff, but also improves the sealing effect between the device and the outside world, preventing the converter flue gas from escaping to the outside world through the inlet and settling tank when the device is removing dust from the converter flue gas.

[0006] This utility model is achieved through the following technical solution: a circulating spray dust removal and cooling integrated machine is provided, including a dust removal tower, a defoaming and rinsing component disposed on the upper side inside the dust removal tower, a spray dust removal component disposed on the lower side inside the dust removal tower for dust removal of converter flue gas, and a filter screen plate placed inside the dust removal tower and abutting against the inner side wall of the dust removal tower. A settling trough is provided on the front side wall of the dust removal tower, and an opening adapted to the filter screen plate is provided at the bottom of the settling trough. A crossbar is rotatably disposed on the two inner side walls of the settling trough, and a cover plate is disposed at the bottom of the crossbar that presses against the bottom of the settling trough and abuts against the two inner side walls of the settling trough. The outer side wall of the cover plate is flush with the front side wall of the dust removal tower. A pressure plate is fitted on the front side wall of the dust removal tower and presses against the gap between the cover plate and the lower inner side wall of the settling trough. The filter screen plate and the inner side wall of the pressure plate are fixed by a connecting plate located between the cover plate and the lower inner side wall of the settling trough. A driving mechanism for moving the filter screen plate back and forth is provided on the outer side wall of the dust removal tower.

[0007] In use, this utility model comprises a dust removal tower, a defoaming and rinsing assembly located on the upper side inside the dust removal tower, a spray dust removal assembly located on the lower side inside the dust removal tower for removing dust from converter flue gas, and a filter screen plate placed inside the dust removal tower and abutting against the inner wall of the dust removal tower. A settling trough is formed on the front wall of the dust removal tower, with an opening at the bottom of the settling trough adapted to the filter screen plate. Crossbars are rotatably mounted on the two inner walls of the settling trough, and a cover plate is positioned at the bottom of the crossbars, pressing against the bottom of the settling trough and abutting against the two inner walls of the settling trough. The outer wall of the cover plate is flush with the front wall of the dust removal tower. A pressure plate is fitted onto the front wall of the dust removal tower, pressing against the gap between the cover plate and the lower inner wall of the settling trough. The filter screen plate and the inner wall of the pressure plate are fixed by a connecting plate located between the cover plate and the lower inner wall of the settling trough. The device is equipped with a drive mechanism that moves the filter screen back and forth. During operation, the spray dust removal assembly delivers industrial water from the lower part of the dust removal tower to the top of the filter screen, atomizing and spraying it downwards to remove dust from the converter flue gas entering the tower. The dust-laden industrial water continues to fall downwards and is filtered by the filter screen, which blocks insoluble substances. The filtered water is then recycled back into the lower part of the dust removal tower. After being spray-treated, the converter flue gas rises under the suction of an external fan and undergoes gas-liquid separation by the demister in the demister flushing assembly. The separated flue gas is then transported to an external exhaust gas purification tower for further purification. When cleaning the demister in the demisting flushing assembly is required, the assembly is activated to deliver industrial water from the lower part of the dust collector tower to the top of the demister, which is then sprayed downwards to perform reverse cleaning of the demister, thus maintaining the gas-liquid separation effect of the demister within the assembly. When cleaning or replacing the filter screen in the dust collector tower, the drive mechanism on the outer wall of the dust collector tower is controlled to move the filter screen forward within the tower. This movement, via a connecting plate, drives the pressure plate forward, preventing it from pressing against the gap between the cover plate and the lower wall of the settling tank. The front end of the filter screen moves through the opening and into the settling tank to the outside of the dust collector tower, allowing it to contact the inner wall of the cover plate during movement. The cover plate is pushed forward and rotated so that it is no longer pressed against the bottom of the settling tank and rests on top of the filter screen. This causes the cover plate to rotate along the inner walls of the settling tank, facilitating cleaning or replacement of the filter elements within the filter screen. After cleaning or replacement, the drive mechanism on the outer wall of the dust collector moves the filter screen backward within the tower, returning its front end to its initial position through the opening. This causes the cover plate to detach from the top of the filter screen and return to its initial position under its own weight, no longer in contact with it. The cover plate then presses back onto the bottom of the settling tank, causing the crossbar to rotate along the inner walls of the settling tank.The pressure plate, driven by the connecting plate, also moves backward, pressing it back onto the gap between the cover plate and the lower side wall of the settling tank. This seals the interior of the dust collector from the outside, facilitating cleaning and replacement of the filter elements in the filter screen within the dust collector, and improving the sealing effect between the unit and the outside environment. This prevents the converter flue gas from escaping through the openings and settling tank during dust removal.

[0008] Preferably, the filter screen includes a fixed frame and a filter screen placed inside the fixed frame. In use, the front end of the fixed frame can move back and forth on the dust collector tower under the action of a driving mechanism, allowing the fixed frame to move from inside the dust collector tower to the outside of the dust collector tower via the opening and settling tank, and then back to the inside of the dust collector tower. This facilitates the replacement of the filter screen placed inside the fixed frame by the operator.

[0009] Preferably, the driving mechanism includes a threaded hole on the side wall of the fixed frame away from the cover plate, with a threaded rod tightly fastened within the threaded hole. The threaded rod extends laterally through the dust collector in the direction away from the cover plate and is rotatably connected to the dust collector. In use, by controlling the threaded rod to rotate forward or backward within the dust collector, the threaded rod rotates forward or backward within the threaded hole on the side wall of the fixed frame away from the cover plate. Because the filter screen plate abuts against the inner wall of the dust collector, the fixed frame does not rotate forward or backward with the threaded rod, but rather moves forward or backward on the dust collector under the rotational drive of the threaded rod.

[0010] Preferably, a rotating handle is fixedly connected to one end of the threaded rod located outside the dust collector tower. By fixing the rotating handle to the end of the threaded rod located outside the dust collector tower, the operator can easily control the rotation of the threaded rod inside the dust collector tower.

[0011] Preferably, a rubber pad is installed on the side wall of the pressure plate facing the dust collector. By installing a rubber pad on the side wall of the pressure plate facing the dust collector, the sealing effect between the device and the outside world can be further improved, preventing the converter flue gas from escaping to the outside through the opening and settling tank when the device is removing dust from the converter flue gas.

[0012] Preferably, the bottom of the connecting plate is flush with the bottom of the opening. Aligning the bottom of the connecting plate with the bottom of the opening improves the stability of the connecting plate and pressure plate during use.

[0013] The beneficial effects of this utility model are as follows: A dust removal tower, a defoaming and rinsing assembly located on the upper side inside the dust removal tower, a spray dust removal assembly located on the lower side inside the dust removal tower for removing dust from converter flue gas, and a filter screen plate placed inside the dust removal tower and abutting against the inner wall of the dust removal tower are all included. A settling trough is provided on the front wall of the dust removal tower, and an opening adapted to the filter screen plate is provided at the bottom of the settling trough. Crossbars are rotatably installed on the two inner walls of the settling trough, and a cover plate is installed at the bottom of the crossbars, pressing against the bottom of the settling trough and abutting against the two inner walls of the settling trough. The outer wall of the cover plate is flush with the front wall of the dust removal tower. A pressure plate is fitted onto the front wall of the dust removal tower, pressing against the gap between the cover plate and the lower inner wall of the settling trough. The filter screen plate and the inner wall of the pressure plate are fixed by a connecting plate located between the cover plate and the lower inner wall of the settling trough. The outer wall of the dust removal tower... The device is equipped with a drive mechanism that moves the filter screen back and forth. During operation, the spray dust removal assembly delivers industrial water from the lower part of the dust removal tower to the top of the filter screen, atomizing and spraying it downwards to remove dust from the converter flue gas entering the tower. The dust-laden industrial water continues to fall downwards and is filtered by the filter screen, which blocks insoluble substances. The filtered water is then recycled back into the lower part of the dust removal tower. After being spray-treated, the converter flue gas rises under the suction of an external fan and undergoes gas-liquid separation by the demister in the demister flushing assembly. The separated flue gas is then transported to an external exhaust gas purification tower for further purification. When cleaning the demister in the demisting flushing assembly is required, the assembly is activated to deliver industrial water from the lower part of the dust collector tower to the top of the demister, which is then sprayed downwards to perform reverse cleaning of the demister, thus maintaining the gas-liquid separation effect of the demister within the assembly. When cleaning or replacing the filter screen in the dust collector tower, the drive mechanism on the outer wall of the dust collector tower is controlled to move the filter screen forward within the tower. This movement, via a connecting plate, drives the pressure plate forward, preventing it from pressing against the gap between the cover plate and the lower wall of the settling tank. The front end of the filter screen moves through the opening and into the settling tank to the outside of the dust collector tower, allowing it to contact the inner wall of the cover plate during movement. The cover plate is pushed forward and rotated so that it is no longer pressed against the bottom of the settling tank and rests on top of the filter screen. This causes the cover plate to rotate along the inner walls of the settling tank, facilitating cleaning or replacement of the filter elements within the filter screen. After cleaning or replacement, the drive mechanism on the outer wall of the dust collector moves the filter screen backward within the tower, returning its front end to its initial position through the opening. This causes the cover plate to detach from the top of the filter screen and return to its initial position under its own weight, no longer in contact with it. The cover plate then presses back onto the bottom of the settling tank, causing the crossbar to rotate along the inner walls of the settling tank.The pressure plate, driven by the connecting plate, also moves backward, pressing it back onto the gap between the cover plate and the lower side wall of the settling tank. This seals the interior of the dust collector from the outside, facilitating cleaning and replacement of the filter elements in the filter screen within the dust collector, and improving the sealing effect between the unit and the outside environment. This prevents the converter flue gas from escaping through the openings and settling tank during dust removal. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the structure of this utility model; Figure 2 for Figure 1 Structural perspective view; Figure 3 for Figure 2 Structural perspective view; Figure 4 for Figure 3 Structural perspective view; Figure 5 This is a side view of the structure of this utility model; Figure 6 for Figure 5 Structural perspective view; Figure 7 for Figure 6 Schematic diagram of part A in the middle; Figure 8 for Figure 6 Perspective view of section B; Figure 9 for Figure 8 Structural perspective view; As shown in the figure: 1. Settling tank, 2. Dust collector tower, 3. Crossbar, 4. Cover plate, 5. Pressure plate, 6. Through port, 7. Connecting plate, 8. Fixing frame, 9. Rotating handle, 10. Threaded rod, 11. Threaded hole, 12. Filter screen plate, 13. Rubber pad. Detailed Implementation

[0015] To clearly illustrate the technical features of this solution, the following detailed implementation method will be used to explain the solution.

[0016] like Figures 1-9The present invention discloses a circulating spray dust removal and cooling integrated machine, comprising a dust removal tower 2, a defoaming and rinsing assembly disposed on the upper side inside the dust removal tower 2, a spray dust removal assembly disposed on the lower side inside the dust removal tower 2 for removing dust from converter flue gas, and a filter screen plate placed inside the dust removal tower 2 and abutting against the inner wall of the dust removal tower 2. A settling trough 1 is provided on the front wall of the dust removal tower 2, and an opening 6 adapted to the filter screen plate is provided at the bottom of the settling trough 1. Horizontal crossbars are rotatably arranged on the two inner walls of the settling trough 1. The rod 3 has a cover plate 4 at its bottom that presses against the bottom of the settling tank 1 and abuts against the two inner side walls of the settling tank 1. The outer side wall of the cover plate 4 is flush with the front side wall of the dust removal tower 2. A pressure plate 5 is attached to the front side wall of the dust removal tower 2 and presses against the gap between the cover plate 4 and the inner lower side wall of the settling tank 1. The filter screen plate and the inner side wall of the pressure plate 5 are fixed by a connecting plate 7 located between the cover plate 4 and the inner lower side wall of the settling tank 1. A driving mechanism for moving the filter screen plate back and forth is provided on the outer side wall of the dust removal tower 2.

[0017] The filter screen includes a fixed frame 8 and a filter screen 12 placed inside the fixed frame 8. When the device is in use, the front end of the fixed frame 8 can move back and forth on the dust removal tower 2 under the action of the drive mechanism, so that the fixed frame 8 moves from inside the dust removal tower 2 to outside the dust removal tower 2 through the through port 6 and the settling tank 1, and then moves back from outside the dust removal tower 2 to inside the dust removal tower 2. This makes it convenient for the staff to replace the filter screen 12 placed inside the fixed frame 8. The driving mechanism includes a threaded hole 11 on the side wall of the fixed frame 8 away from the cover plate 4. A threaded rod 10 is tightly fastened in the threaded hole 11. The threaded rod 10 extends laterally in the direction away from the cover plate 4, passes through the dust collector 2, and is rotatably connected to the dust collector 2. During use, the threaded rod 10 is controlled to rotate forward or backward within the dust collector 2, thereby causing the threaded rod 10 to rotate forward or backward within the threaded hole 11 on the side wall of the fixed frame 8 away from the cover plate 4. Because the filter screen plate abuts against the inner wall of the dust collector 2, the fixed frame 8 will not rotate forward or backward with the threaded rod 10, but will move forward or backward on the dust collector 2 under the rotational drive of the threaded rod 10. A rotating handle 9 is fixed to one end of the threaded rod 10 on the outside of the dust collector 2, allowing operators to easily control the rotation of the threaded rod 10 within the dust collector 2. By installing a rubber pad 13 on the side wall of the pressure plate 5 facing the dust collector 2, the sealing effect between the device and the outside world can be further improved, preventing the converter flue gas from escaping to the outside through the opening 6 and the settling tank 1 when the device is removing dust from the converter flue gas. By aligning the bottom of the connecting plate 7 with the bottom of the opening 6, the stability of the connecting plate 7 and the pressure plate 5 during operation can be improved.

[0018] The spray dust removal assembly includes a high-pressure water pump fixedly installed on the lower right side of the dust removal tower 2. The high-pressure water pump is connected to an external control switch via a wire. The outlet end of the high-pressure water pump is connected to an outlet pipe. A first water guide pipe is fixedly connected inside the dust removal tower 2 above the filter screen. A first branch pipe is fixedly connected to the right end of the first water guide pipe. A second water guide pipe is fixedly connected inside the dust removal tower 2 above the first water guide pipe. A second branch pipe is fixedly connected to the right end of the second water guide pipe. Both the first and second branch pipes are located outside the dust removal tower 2. The same T-junction is fixedly connected to the right side of the annular side of the first and second branch pipes. The T-junction is connected to the end of the outlet pipe away from the high-pressure water pump. A first spray head is provided on the lower side of the annular side of the first water guide pipe, and a second spray head is provided on the lower side of the annular side of the second water guide pipe. The defoaming and flushing assembly includes a demister installed inside the dust removal tower 2 and above the second water guide pipe. The three-way pipe is connected to the outlet pipe at the end furthest from the high-pressure water pump via a three-way valve. A guide pipe is fixedly connected inside the dust removal tower 2 above the demister. The right end of the guide pipe is fixedly connected to the upper surface of the three-way valve. Branch pipes are symmetrically fixedly connected to the front and rear sides of the annular side of the guide pipe, and nozzles are installed on the lower side of the annular side of each branch pipe. A heat exchange tube is fixedly connected inside the dust removal tower 2 below the filter screen. A drain valve and a water supply valve are installed on the left end face of the dust removal tower 2 below the filter screen. An observation window is installed on the front end face of the dust removal tower 2 above the settling tank 1. Several second water guide pipes are arranged along the length of the second branch pipe, and several first water guide pipes are also arranged along the length of the first branch pipe. The first and second water guide pipes are arranged alternately. Several first spray heads are arranged along the length of the first water guide pipe, and several second spray heads are also arranged along the length of the second water guide pipe. The first and second spray heads are arranged alternately. An air outlet pipe is fixedly connected to the middle of the top of the dust removal tower 2.

[0019] Combined with appendix Figure 1-9The method of using this utility model is as follows: First, an appropriate amount of industrial water is added to the dust removal tower 2 by opening the water supply valve. Then, the high-pressure water pump is started to transport the industrial water in the dust removal tower 2 to the outlet pipe. The industrial water is then diverted through a three-way valve and a three-way pipe to the first and second diversion pipes. Next, the first diversion pipe diverts the incoming industrial water to the first guide pipe, and the second diversion pipe diverts the incoming industrial water to the second guide pipe. Finally, the first and second spray heads disperse and atomize the industrial water downwards to spray and remove dust from the converter flue gas entering the dust removal tower 2. During this process, several second guide pipes and first guide pipes are arranged in an alternating pattern with several second spray heads and first... The spray nozzles ensure comprehensive dust removal of the flue gas inside the dust collection tower 2 while also preventing obstruction of the flow efficiency of the dust-removed flue gas into the outlet pipe. The industrial water coated with dust continues to fall downwards and is filtered by the filter screen 12 placed inside the fixed frame 8. This allows the filter screen to block insoluble substances in the industrial water. The filtered industrial water then re-enters the dust collection tower 2 located below the filter screen for recycling, thus saving on industrial water consumption. After the converter flue gas is sprayed for dust removal, it moves upwards under the suction of the external induced draft fan and undergoes gas-liquid separation by the demister. The separated flue gas is then transported through the outlet pipe and the external induced draft fan to the external exhaust gas purification tower for further purification. When cleaning the demister is required, the operator simply closes the three-way valve and opens the guide pipe, allowing industrial water from the outlet pipe to flow into the guide pipe. The guide pipe then distributes the industrial water into multiple branch pipes, which are finally sprayed downwards through nozzles, thus performing reverse cleaning of the demister and maintaining the gas-liquid separation effect within the demister flushing assembly. When cleaning or replacing the filter screen 12 placed inside the fixed frame 8 within the dust collector tower 2, the operator rotates the handle 9 to control the threaded rod 10 to rotate forward within the dust collector tower 2. This allows the threaded rod 10 to pass through the threaded hole 11 on the side wall of the fixed frame 8 away from the cover plate 4. As the filter screen plate rotates, it abuts against the inner wall of the dust collector tower 2. Therefore, the fixed frame 8 will not rotate forward with the threaded rod 10, but will move forward on the dust collector tower 2 under the rotation drive of the threaded rod 10. Through the transmission of the connecting plate 7, it will also drive the pressure plate 5 to move forward, so that the rubber pad 13 on the pressure plate 5 will no longer press against the gap between the cover plate 4 and the lower inner wall of the settling tank 1. The front end of the filter screen plate will move to the outside of the dust collector tower 2 through the opening 6 and the settling tank 1. In this way, the filter screen plate will contact the inner wall of the cover plate 4 during the movement and push the bottom of the cover plate 4 to rotate forward, so that the cover plate 4 will no longer press against the bottom of the settling tank 1 and will fall on top of the filter screen plate. This will cause the cover plate 4 to drive the crossbar 3 to rotate on the two inner walls of the settling tank 1.Afterwards, remove the filter screen 12 originally placed inside the fixed frame 8 and place a new filter screen 12 inside the fixed frame 8, or clean the filter screen 12 placed inside the fixed frame 8. After the staff has cleaned or replaced the filter screen 12 inside the fixed frame 8, turn the handle 9 to control the threaded rod 10 to rotate in the opposite direction inside the dust collector 2. This causes the threaded rod 10 to rotate in the opposite direction in the threaded hole 11 on the side wall of the fixed frame 8 away from the cover plate 4. At this time, because the filter screen is in contact with the inner side wall of the dust collector 2, the fixed frame 8 will not rotate in the opposite direction with the threaded rod 10, but will rotate in the opposite direction with the threaded rod 10. Driven by rotation, the filter screen moves backward on the dust collector 2, causing the front end of the filter screen plate to return to its initial position via the opening 6 and the settling tank 1. This causes the cover plate 4 to detach from the top of the filter screen plate, no longer in contact with it. Without the support of the filter screen plate, the cover plate 4 returns to its initial position under its own weight, pressing it back onto the bottom of the settling tank 1. This causes the crossbar 3 to rotate on the two inner walls of the settling tank 1. The pressure plate 5, driven by the connecting plate 7, also moves backward, causing the rubber pad 13 on the pressure plate 5 to press back into the gap between the cover plate 4 and the lower inner wall of the settling tank 1, thus sealing the interior of the dust collector 2 from the outside.

[0020] Of course, the above description is not limited to the examples above. Technical features of this utility model not described can be implemented by or using existing technology, and will not be repeated here. The above embodiments and drawings are only used to illustrate the technical solution of this utility model and are not intended to limit this utility model. This utility model has been described in detail with reference to preferred embodiments. Those skilled in the art should understand that any changes, modifications, additions or substitutions made by those skilled in the art within the scope of this utility model do not depart from the spirit of this utility model and should also fall within the protection scope of the claims of this utility model.

Claims

1. A circulating spray dust removal and cooling integrated machine, comprising a dust removal tower (2), a defoaming and flushing assembly disposed on the upper side inside the dust removal tower, a spray dust removal assembly disposed on the lower side inside the dust removal tower for dust removal of converter flue gas, and a filter screen plate placed inside the dust removal tower and abutting against the inner wall of the dust removal tower, characterized in that: A settling trough (1) is provided on the front side wall of the dust removal tower. A through-hole (6) adapted to the filter screen is provided at the bottom of the settling trough. A crossbar (3) is rotatably provided on the two inner side walls of the settling trough. A cover plate (4) is provided at the bottom of the crossbar, pressing against the bottom of the settling trough and abutting against the two inner side walls of the settling trough. The outer side wall of the cover plate is flush with the front side wall of the dust removal tower. A pressure plate (5) is attached to the front side wall of the dust removal tower, pressing against the gap between the cover plate and the inner lower side wall of the settling trough. The filter screen and the inner side wall of the pressure plate are fixed by a connecting plate (7) located between the cover plate and the inner lower side wall of the settling trough. A driving mechanism for moving the filter screen back and forth is provided on the outer side wall of the dust removal tower.

2. The circulating spray dust removal and cooling integrated machine according to claim 1, characterized in that: The filter screen includes a fixed frame (8) and a filter screen (12) placed inside the fixed frame.

3. The circulating spray dust removal and cooling integrated machine according to claim 1, characterized in that: The drive mechanism includes a threaded hole (11) on the side wall of the fixed frame away from the cover plate, and a threaded rod (10) is tightly fitted in the threaded hole. The threaded rod extends laterally through the dust collector in the direction away from the cover plate and is rotatably connected to the dust collector.

4. The circulating spray dust removal and cooling integrated machine according to claim 3, characterized in that: The threaded rod is fixed to a rotating handle (9) at one end on the outside of the dust removal tower.

5. The circulating spray dust removal and cooling integrated machine according to claim 4, characterized in that: A rubber pad (13) is installed on the side wall of the pressure plate facing the dust removal tower.

6. The circulating spray dust removal and cooling integrated machine according to claim 4, characterized in that: The bottom of the connecting plate is flush with the bottom of the opening.

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