Ash removal device and ash removal method suitable for partition wall water cooling screen

Abstract

The invention provides an ash removal device suitable for a partition wall water-cooling screen, comprising a cross beam which is fixedly connected to the ground through a channel steel support; the sliding seat is slidably connected to the cross beam, a rotating pipe is rotatably connected to the sliding seat, and a first nozzle group and a second nozzle group are arranged on the rotating pipe; the driving mechanism is mounted on the sliding seat, and the driving mechanism is used for driving the rotating pipe to rotate while driving the sliding seat to move; the first transmission mechanism is arranged between the driving mechanism and the cross beam and is used for driving the sliding seat to move along the cross beam under the action of the driving mechanism; the second transmission mechanism is arranged between the driving mechanism and the rotating pipe and used for transmitting power of the driving mechanism to the rotating pipe and driving the rotating pipe to rotate; and the steam pipe penetrates through the sliding seat and extends into the rotating pipe, the steam pipe is in sliding connection with the sliding seat, and the steam pipe is fixedly connected to the cross beam. The problems that in the background technology, the blowing angle and range are limited, and the dust cleaning effect is relatively poor are solved.

Description

Technical Field

[0001] The present application belongs to the technical field of boiler cleaning, and more specifically, to a cleaning device and a cleaning method suitable for a partition wall water cooling screen. Background Art

[0002] The boiler water-cooled wall transfers the heat in the high-temperature flue gas to the water vapor in the heating surface tube bundle through convection, radiation and other methods to achieve heat exchange. However, in the actual operation process, the fly ash impurities in the flue gas will adhere to the surface of the water-cooled wall to form ash accumulation, affecting the heat exchange efficiency of the heating surface and the safe operation of the equipment. Therefore, water-cooled wall cleaning is an important link to ensure the normal operation of the boiler. For medium and large-sized incineration boilers, multiple horizontally arranged partition wall water-cooled screens are usually set in the second and third flues to increase the heat exchange area of ​​the water-cooled wall and enhance the rigidity of the boiler structure. However, the traditional steam and shock wave cleaning methods on both sides of the boiler are restricted by structural obstacles and cannot effectively purge the intermediate tube partition wall water-cooled screen; while the vertical steam cleaning and water spray cleaning methods are limited in the blowing angle and range, and the cleaning effect is relatively poor. Frequent cleaning not only adds additional operation and maintenance costs, but also causes energy waste. In particular, the water-cooled wall angle is more prone to ash accumulation and coking.

[0003] In summary, in order to completely solve the problem of cleaning the water-cooled screen of the intermediate tube segment partition wall and to improve the heat exchange efficiency of the water-cooled wall as much as possible, it is necessary to develop a combined cleaning device with simple structure and high cleaning efficiency. Summary of the invention

[0004] The purpose of the embodiments of the present application is to provide a cleaning device suitable for partition wall water-cooling screens, so as to solve the problem that the traditional steam and shock wave cleaning methods on both sides of the boiler are restricted by structural obstacles and cannot effectively blow the intermediate pipe segment partition wall water-cooling screen; and the vertical steam cleaning, water spray cleaning and other methods have limited blowing angles and ranges, and the cleaning effect is relatively poor.

[0005] To achieve the above purpose, the technical solution adopted in this application is: a dust cleaning device suitable for partition wall water cooling screen, comprising: The crossbeam is fixed to the ground through channel steel supports; A slide seat is slidably connected to the cross beam, a rotating tube is rotatably connected to the slide seat, and a first nozzle group and a second nozzle group are arranged on the rotating tube; A driving mechanism is installed on the slide, and is used to drive the slide to move and drive the rotating tube to rotate; A first transmission mechanism, disposed between the driving mechanism and the crossbeam, and configured to drive the slide to move along the crossbeam under the action of the driving mechanism; A second transmission mechanism is disposed between the driving mechanism and the rotating tube, and is used to transmit the power of the driving mechanism to the rotating tube to drive the rotating tube to rotate; A steam pipe penetrates the sliding seat and extends into the rotating pipe, and the steam pipe is slidably connected to the sliding seat and fixedly connected to the crossbeam.

[0006] Preferably, the first transmission mechanism comprises: A gear box, fixedly connected to the slide seat; A first bevel gear, fixedly sleeved on the output shaft of the driving mechanism; A transmission shaft, which passes through the side wall of the gear box and is rotatably connected to the gear box; A second bevel gear, fixedly connected to the transmission shaft, the second bevel gear being meshed and connected with the first bevel gear; A gear, fixedly connected to an end of the transmission shaft away from the second bevel gear; The rack is fixedly connected to the crossbeam, and the rack is meshingly connected with the gear.

[0007] Preferably, the second transmission mechanism comprises: A first sprocket, fixedly connected to the output shaft; A second sprocket is fixedly sleeved on the rotating tube; A chain is installed on the first sprocket and the second sprocket so as to drive the rotating tube to rotate while the driving mechanism drives the slide to move.

[0008] Preferably, it also includes a water-cooled wall hole sealing mechanism and a rotating tube sealing mechanism.

[0009] Preferably, the water-cooled wall hole sealing mechanism comprises: A casting layer is cast around the water-cooled wall holes, and the casting layer is cast by a steel mesh and a high-aluminum refractory castable; Aluminum silicate fiberboard is fixedly connected to the casting layer, and the aluminum silicate fiberboard has a low thermal conductivity, can effectively prevent heat conduction, and provides excellent thermal insulation effect; A water-cooled wall hole sealing cover is sleeved on the casting layer and the aluminum silicate fiber board; The casting layer, the aluminum silicate fiberboard, and the water-cooled wall hole sealing cover are coaxially provided with through holes, and the through holes are communicated with the water-cooled wall holes.

[0010] Preferably, the rotating tube sealing mechanism comprises: A cover body, fixedly connected to the water-cooled wall hole sealing cover, and a protective wind interface is provided on the cover body; A gas guide is disposed inside the cover body, and the gas guide and the inner wall of the cover body form a pressure chamber; the gas guide ensures that the gas in the pressure chamber flows along a preset path to ensure that smoke does not leak.

[0011] Preferably, it also includes: a water seal component, which is connected to the cover body and is used to discharge the hydrophobicity generated by the rotating pipe and also achieve a sealing effect.

[0012] Preferably, the water seal assembly comprises: A connecting sleeve, fixedly connected to the cover body; A flow guide cover is formed with a flow guide groove, and a flow guide hole is opened on the flow guide groove; A liquid guide tube, fixedly connected to the guide cover; A drain pipe passes through the bottom of the connecting sleeve and extends into the liquid guide pipe; the drain pipe and the liquid guide pipe form a liquid flow channel.

[0013] Preferably, the first nozzle group and the second nozzle group are both arranged at an angle to the rotating tube.

[0014] Preferably, a method for cleaning a partition wall water cooling screen comprises the following steps: Ⅰ. Harmonic dust cleaning device operates continuously for 24 hours; Ⅱ. The dust removal device of the present invention is operated one by one in the set sequence; III. Taking the No. 1 cleaning device as an example, the rotating pipe of the cleaning device extends into the furnace through the water-cooled wall holes and the partition wall water-cooled screen holes, and starts to blow 10 to 30 cm from the front of the first partition wall water-cooled screen; after blowing for 2 to 5 minutes, it continues to move forward to 10 to 30 cm from the back of the first partition wall water-cooled screen and starts to blow; IV. After the first partition wall water cooling screen is purged, all subsequent partition wall water cooling screens shall be purged in sequence according to the same procedure; Ⅴ. After the purge is completed, the dust cleaning device is retracted to its original position.

[0015] The beneficial effects of a dust cleaning device applicable to a partition wall water cooling screen provided in the present application are: 1. The present invention includes a crossbeam, which is fixedly connected to the ground through a channel steel support; a slide, which is slidably connected to the crossbeam, and a rotating tube is rotatably connected to the slide, and a first nozzle group and a second nozzle group are arranged on the rotating tube; a driving mechanism, which is installed on the slide, and the driving mechanism is used to drive the slide to move and drive the rotating tube to rotate; a first transmission mechanism, which is arranged between the driving mechanism and the crossbeam, and is used to drive the slide to move along the crossbeam under the action of the driving mechanism; a second transmission mechanism, which is arranged between the driving mechanism and the rotating tube, and is used to transmit the power of the driving mechanism to the rotating tube to drive the rotating tube to rotate; a steam pipe, which passes through the slide and extends into the rotating tube, and the steam pipe is slidably connected to the slide, and the steam pipe is fixedly connected to the crossbeam. The problem mentioned in the background technology that the blowing angle and range are limited and the dust cleaning effect is relatively poor is solved.

[0016] 2. The present invention can prevent heat loss and achieve the beneficial effect of sealing by setting the water-cooled wall hole sealing mechanism and the rotating tube sealing mechanism.

[0017] 3. The gas guide is connected to the cover body through a water seal assembly. A drainage hole is provided on the side of the gas guide close to the water seal assembly to discharge the drainage generated by the rotating pipe and achieve a sealing effect.

[0018] 4. The present invention has a compact structure and can effectively solve the dust cleaning problem at the water-cooled screen of the middle partition wall and the corners of the water-cooled wall, greatly improving the heat transfer efficiency of the water-cooled wall, extending the service life of the equipment, and ensuring the safe and stable operation of the equipment.

[0019] 5. At the same time, the combined process of steam soot blowing + harmonic soot blowing can enhance the cleaning efficiency in a targeted manner. Controllable intermittent steam soot blowing can ensure the large-area cleaning effect of the partition wall water-cooled screen, while harmonic soot blowing can focus on corners and surrounding areas that are difficult to cover, reducing the daily fly ash accumulation phenomenon.

[0020] 6. The 24-hour continuous operation of the harmonic soot blowing device can effectively improve the degree of soot accumulation on the water-cooled wall, reduce the frequency of steam soot blowing, reduce operating steam consumption, and control production and operating costs.

[0021] 7. The present invention is applicable to all boiler projects with partition wall water-cooled panels, and is particularly beneficial to the renovation of old power plants. It has significant economic benefits due to its convenient renovation, low equipment investment cost, and good dust cleaning effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0023] Figure 1 A schematic structural diagram of a dust cleaning device applicable to a partition wall water cooling screen provided in an embodiment of the present application; Figure 2 A schematic diagram of the structure of the first transmission mechanism and the second transmission mechanism provided in the embodiment of the present application; Figure 3 Provided for the embodiments of this application Figure 1 A is a schematic diagram of the enlarged structure of the middle part; Figure 4 A schematic cross-sectional view of the water seal assembly provided in an embodiment of the present application; Figure 5 A schematic diagram of the top view of the water seal assembly provided in this application example; Figure 6 Provided for the embodiments of this application Figure 1 A schematic diagram of the enlarged structure of B; Figure 7 A schematic diagram of the structure of the side wall water-cooled wall provided in an embodiment of the present application; Figure 8 Provided for the embodiments of this application Figure 7 A schematic diagram of the side water-cooled wall structure viewed from above; Fig. 9 This is a schematic diagram of the installation of the harmonic cleaning device provided in an embodiment of the present application.

[0024] Among them, the reference numerals in the figure are: 1. Beam; 2. Slide; 3. Servo motor; 4. Reducer; 5. First transmission mechanism; 501. Gear box; 502. First bevel gear; 503. Transmission shaft; 504. Second bevel gear; 505. Gear; 506. Rack; 507. Reducer output shaft; 6. Second transmission mechanism; 601. First sprocket; 602. Second sprocket; 603. Chain; 7. Water-cooled wall hole sealing mechanism; 701. Casting layer; 702. Aluminum silicate fiberboard; 703. Water-cooled wall hole sealing cover; 8. Rotating tube sealing mechanism; 801. Cover body; 802. Gas guide piece; 803. Pressure chamber; 804. Preset path; 805. Drain hole; 806. Protective wind interface; 9. Water seal assembly; 901. Connecting sleeve; 902. Diversion cover; 903. Liquid diversion pipe; 904. Drain pipe; 905. Water seal; 906. Diversion hole; 10. Steam pipe; 11. Pressure reducer; 12. Rotating pipe; 13. First flue; 14. Side water-cooled wall; 15. Second flue; 16. Partition wall water-cooled screen; 17. Front partition wall water-cooled wall; 18. Rear partition wall water-cooled wall; 19. Sound wave generator; 20. Sound amplification cover; 21. Water-cooled wall pipe; 22. Third flue; 23. High-temperature flue gas; 24. Water-cooled wall hole; 25. Partition wall water-cooled screen hole; 26. First nozzle; 27. Second nozzle; 28. Water-cooled wall pipe. DETAILED DESCRIPTION

[0025] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present application more clearly understood, the present application is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application and are not used to limit the present application.

[0026] It should be noted that when an element is referred to as being "fixed to" or "disposed on" another element, it can be directly on the other element or indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or indirectly connected to the other element.

[0027] It should be understood that the terms "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.

[0028] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of this application, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0029] Please also read Figures 1 to 6 Now, a dust cleaning device suitable for a partition wall water cooling screen provided in an embodiment of the present application is described.

[0030] The dust cleaning device suitable for the partition wall water cooling screen 16 comprises a crossbeam 1, a slide seat 2, a driving mechanism, a first transmission mechanism 5, a second transmission mechanism 6, and a steam pipe 10.

[0031] The crossbeam 1 is fixedly connected to the ground or platform through a channel steel support, and a roller or bearing is installed at the contact point between the channel steel support and the rotating tube 12, which is used to support the rotating tube 12 and reduce friction during the rotation of the rotating tube 12. The slide 2 is provided with a T-shaped guide rail, and the crossbeam 1 is provided with a T-shaped slide groove. The slide 2 is slidably connected to the T-shaped slide groove of the crossbeam 1 through the T-shaped guide rail. The slide 2 is rotatably connected to the rotating tube 12 through a bearing. The rotating tube 12 is provided with a first nozzle group 26 and a second nozzle group 27, and the first nozzle group 26 and the second nozzle group 27 are both set at an angle with the rotating tube 12, and the angle is greater than 75 degrees and less than 90 degrees; the first nozzle group 26 is composed of a plurality of first nozzles 26, and the second nozzle group 27 is composed of a plurality of second nozzles 27, and the first nozzle 26 and the second nozzle 27 are equally spaced and staggered on the rotating tube 12.

[0032] The driving mechanism includes a servo motor 3 and a reducer 4. The servo motor 3 is connected to the reducer 4 and fixedly connected to the slide 2 by bolts. The driving mechanism is used to drive the slide 2 to move and drive the rotating tube 12 to rotate. A first transmission mechanism 5 is provided between the driving mechanism and the cross beam 1, and is used for driving the slide 2 to move along the cross beam 1 under the action of the driving mechanism; specifically, the first transmission mechanism 5 comprises: a gear box 501, the gear box 501 is fixedly connected to the slide 2, and a reducer output shaft 507 passes through the gear box 501 and is rotatably connected to the gear box 501; a first bevel gear 502, the first bevel gear 502 is fixedly sleeved on the reducer output shaft 507 located in the gear box 501; a transmission shaft 503, the transmission shaft 503 passes through the side wall of the gear box 501 and is rotatably connected to the side wall of the gear box 501; a second bevel gear 504, the second bevel gear 504 is fixedly connected to one end of the transmission shaft 503 located in the gear box 501, and the second bevel gear 504 is meshedly connected to the first bevel gear 502; a gear 505, the gear 505 is fixedly connected to one end of the transmission shaft 503 away from the second bevel gear 504; The rack 506 is fixedly connected to the beam 1 , and the rack 506 is meshedly connected with the gear 505 .

[0033] The second transmission mechanism 6 is arranged between the driving mechanism and the rotating tube 12, and is used to transmit the power of the driving mechanism to the rotating tube 12, driving the rotating tube 12 to rotate, so that the nozzle on the rotating tube 12 can rotate and spray during the process of spraying steam, thereby increasing the spray range of the nozzle and overcoming the spray blind angle of the nozzle. Specifically, the second transmission mechanism 6 includes: a first sprocket 601, the first sprocket 601 is fixedly connected to the extension end of the output shaft 507 of the reducer located outside the gear box 501; a second sprocket 602, the second sprocket 602 is fixedly sleeved on the rotating tube 12; the first sprocket 601 and the second sprocket 602 are connected by a chain 603; so that the rotating tube 12 is driven to rotate while the driving mechanism drives the slide 2 to move.

[0034] The steam pipe 10 passes through the slide 2 and extends into the rotating tube 12, and the steam pipe 10 is slidably connected to the slide 2. The steam pipe 10 is fixedly connected to the crossbeam 1. The steam pipe 10 is connected to a pressure reducer 11, and a steam interface is provided on the pressure reducer 11. The pressure reducer 11 is used to reduce the pressure of the steam generated by the boiler and supply it to the cleaning device for blowing the target parts.

[0035] As a further preferred embodiment, the cleaning device further comprises a water-cooled wall hole sealing mechanism 7 and a rotating tube sealing mechanism 8. Specifically, the water-cooled wall hole sealing mechanism 7 comprises: a casting layer 701, the casting layer 701 is cast around the water-cooled wall hole 24, and the casting layer 701 is cast by a steel mesh and a high-aluminum refractory castable; an aluminum silicate fiberboard 702, the aluminum silicate fiberboard 702 is fixedly connected to the casting layer 701, the aluminum silicate fiberboard 702 has a low thermal conductivity, can effectively prevent heat conduction, and provide an excellent thermal insulation effect; a water-cooled wall hole sealing cover 703, which is sleeved on the casting layer 701 and the aluminum silicate fiberboard 702; the casting layer 701, the aluminum silicate fiberboard 702, and the water-cooled wall hole sealing cover 703 are coaxially provided with through holes, and the through holes are connected to the water-cooled wall hole 24. The water-cooled wall hole sealing mechanism 7 can prevent heat loss, and the flue gas has acidic corrosive properties, which can prevent flue gas leakage, corrosion to equipment and air pollution. The rotating tube sealing mechanism 8 includes: a cover body 801, wherein the cover body 801 is fixedly connected to the water-cooled wall hole sealing cover 703, and a protective wind interface 806 is provided on the cover body 801, and the protective wind interface 806 is connected to the air compressor; a gas guide 802, wherein the gas guide 802 is arranged inside the cover body 801, and the gas guide 802 and the inner wall of the cover body 801 form a pressure chamber 803; the gas guide 802 ensures that the gas in the pressure chamber 803 flows along the preset path 804 to ensure that the flue gas will not leak from the connection between the rotating tube 12 and the cover body 801.

[0036] As a further preferred embodiment, in order to be able to timely discharge the hydrophobicity generated by the rotating tube 12 and achieve a sealing effect at the same time, the rotating tube sealing mechanism 8 also includes: a water seal component 9, the water seal component 9 is connected to the cover body 801, and the gas guide member 802 is provided with a hydrophobic hole 805 on the side close to the water seal component 9, and the water seal component 9 is used to discharge the hydrophobicity generated by the rotating tube 12 and achieve a sealing effect at the same time. Specifically, the water seal assembly 9 includes: a connecting sleeve 901, which is provided with an external thread, and the cover body 801 is provided with an internal thread, and the connecting sleeve 901 is fixedly connected to the cover body 801 through the external thread; a guide cover 902, which is formed with a guide groove, and a plurality of guide holes 906 are evenly spaced on the guide groove; a liquid guide pipe 903, which is fixedly connected to the guide cover 902; a drain pipe 904, which passes through the bottom of the connecting sleeve 901 and extends into the liquid guide pipe 903; the drain pipe 904 and the liquid guide pipe 903 form a liquid flow channel, and the liquid flow channel receives the water to form a water seal 905 to achieve a sealing effect. When the water is too much, the water will be discharged from the drain pipe 904 to achieve the purpose of drainage.

[0037] A method for cleaning the partition wall water cooling screen 16, please refer to Figures 1 to 9 Specifically, four water-cooled wall holes 24 are provided in the side wall water-cooled wall of the second flue 15 in the vertical direction, and the distance between two adjacent water-cooled wall holes 24 is 2 to 4 meters. Four partition wall water-cooled screen holes 25 are also provided in the vertical direction on the partition wall water-cooled screen, which are divided into four layers. The water-cooled wall holes 24 and the partition wall water-cooled screen holes are located on the same horizontal line in the horizontal direction, and the apertures of the water-cooled wall holes 24 and the partition wall water-cooled screen holes are 25 to 80 cm. The water-cooled wall pipes 28 of the partition wall water-cooled screen 16 can adopt thick-walled pipes with a thickness of more than 5 mm, or can adopt wear-resistant cover plates or surfacing welding and other processes. Two cleaning devices for partition wall water cooling screen 16 of the present invention are installed at the holes 24 of each layer of water cooling wall. The two cleaning devices for partition wall water cooling screen 16 clean the partition wall water cooling screen 16 at the same time. The side wall water cooling wall is divided into the first layer, the second layer, the third layer, and the fourth layer from bottom to top in the vertical direction. The cleaning device for the first layer is the No. 1 cleaning device, the cleaning device for the second layer is the No. 2 cleaning device, the cleaning device for the third layer is the No. 3 cleaning device, and the cleaning device for the fourth layer is the No. 4 cleaning device. The frequency of the No. 1 cleaning device, the No. 2 cleaning device, the No. 3 cleaning device, and the No. 4 cleaning device is once every 8 to 48 hours.

[0038] The harmonic cleaning device is arranged at multiple points on the top of the second flue 15 of the boiler, and is sealed by the water-cooled wall hole sealing mechanism 7. The harmonic cleaning device is directly facing the angle between the partition wall water-cooled screen 16 and the front partition wall water-cooled wall 17 and the rear partition wall water-cooled wall 18 to clear the dead corners that the cleaning device cannot reach. The harmonic cleaning device includes a sound wave generator 19 and a sound amplification cover 20.

[0039] The harmonic cleaning device is used in conjunction with this cleaning device to reduce the frequency of steam soot blowing, thereby reducing steam consumption and lowering operating costs.

[0040] The specific cleaning method is as follows: Ⅰ. Harmonic dust cleaning device operates continuously for 24 hours; Ⅱ. The dust removal devices for the partition wall water cooling screen 16 are operated one by one in the set sequence; III. Taking the No. 1 cleaning device as an example, the rotating pipe 12 of the cleaning device extends into the furnace through the water-cooled wall hole 24 and the partition wall water-cooled screen hole 25, and starts to blow at 10 to 30 cm from the front side of the first partition wall water-cooled screen 16; after blowing for 2 to 5 minutes, it continues to move forward to 10 to 30 cm from the back side of the first partition wall water-cooled screen 16 and starts to blow; then the No. 2 cleaning device repeats the cleaning process of the No. 1 cleaning device, and so on.

[0041] IV. After the first partition wall water-cooling screen 16 is purged, all subsequent partition wall water-cooling screens 16 are purged in sequence according to the same process; Ⅴ. After the purge is completed, the dust cleaning device is retracted to its original position.

[0042] The above description is only a preferred embodiment of the present application and is not intended to limit the present application. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present application should be included in the protection scope of the present application.

Claims

1. A dust cleaning device suitable for partition wall water cooling screen, characterized in that: include: The crossbeam is fixed to the ground through channel steel supports; A slide seat is slidably connected to the cross beam, a rotating tube is rotatably connected to the slide seat, and a first nozzle group and a second nozzle group are arranged on the rotating tube; A driving mechanism is installed on the slide, and is used to drive the slide to move and drive the rotating tube to rotate; A first transmission mechanism, disposed between the driving mechanism and the crossbeam, and configured to drive the slide to move along the crossbeam under the action of the driving mechanism; A second transmission mechanism is disposed between the driving mechanism and the rotating tube, and is used to transmit the power of the driving mechanism to the rotating tube to drive the rotating tube to rotate; A steam pipe penetrates the sliding seat and extends into the rotating pipe, and the steam pipe is slidably connected to the sliding seat and fixedly connected to the crossbeam.

2. A dust cleaning device suitable for partition wall water cooling screen according to claim 1, characterized in that: The first transmission mechanism comprises: A gear box, fixedly connected to the slide seat; A first bevel gear, fixedly sleeved on the output shaft of the driving mechanism; A transmission shaft, which passes through the side wall of the gear box and is rotatably connected to the gear box; A second bevel gear, fixedly connected to the transmission shaft, the second bevel gear being meshed and connected with the first bevel gear; A gear, fixedly connected to an end of the transmission shaft away from the second bevel gear; The rack is fixedly connected to the crossbeam, and the rack is meshingly connected with the gear.

3. A dust removal device suitable for partition wall water cooling screen according to claim 2, characterized in that: The second transmission mechanism comprises: A first sprocket, fixedly connected to the output shaft; A second sprocket is fixedly sleeved on the rotating tube; A chain is installed on the first sprocket and the second sprocket so as to drive the rotating tube to rotate while the driving mechanism drives the slide to move.

4. A dust cleaning device suitable for partition wall water cooling screen according to any one of claims 1 to 3, characterized in that: It also includes a water-cooled wall hole sealing mechanism and a rotating tube sealing mechanism.

5. A dust cleaning device suitable for partition wall water cooling screen as claimed in claim 4, characterized in that: The water-cooled wall hole sealing mechanism comprises: A casting layer is cast around the water-cooled wall holes, and the casting layer is cast by a steel mesh and a high-aluminum refractory castable; Aluminum silicate fiberboard is fixedly connected to the casting layer, and the aluminum silicate fiberboard has a low thermal conductivity, can effectively prevent heat conduction, and provides excellent thermal insulation effect; A water-cooled wall hole sealing cover is sleeved on the casting layer and the aluminum silicate fiber board; The casting layer, the aluminum silicate fiberboard, and the water-cooled wall hole sealing cover are coaxially provided with through holes, and the through holes are communicated with the water-cooled wall holes.

6. A dust removal device suitable for partition wall water cooling screen according to claim 5, characterized in that: The rotating tube sealing mechanism comprises: A cover body, fixedly connected to the water-cooled wall hole sealing cover, and a protective wind interface is provided on the cover body; A gas guide is disposed inside the cover body, and the gas guide and the inner wall of the cover body form a pressure chamber; the gas guide ensures that the gas in the pressure chamber flows along a preset path to ensure that smoke does not leak.

7. A dust removal device suitable for partition wall water cooling screen according to claim 6, characterized in that: Also includes: A water seal component is connected to the cover body and is used to discharge the hydrophobicity generated by the rotating pipe and also achieve a sealing effect.

8. A dust cleaning device suitable for partition wall water cooling screen according to claim 7, characterized in that: The water seal assembly comprises: A connecting sleeve, fixedly connected to the cover body; A flow guide cover is formed with a flow guide groove, and a flow guide hole is opened on the flow guide groove; A liquid guide tube, fixedly connected to the guide cover; A drain pipe passes through the bottom of the connecting sleeve and extends into the liquid guide pipe; the drain pipe and the liquid guide pipe form a liquid flow channel.

9. A dust cleaning device suitable for partition wall water cooling screen according to claim 8, characterized in that: The first nozzle group and the second nozzle group are both arranged at an angle with the rotating tube.

10. A method for cleaning a partition wall water cooling screen, characterized in that: The steps are as follows: Ⅰ. Harmonic dust cleaning device operates continuously for 24 hours; II. The dust removal device as claimed in claim 9 is operated one by one in a set sequence; III. Taking the No. 1 cleaning device as an example, the rotating pipe of the cleaning device extends into the furnace through the water-cooled wall holes and the partition wall water-cooled screen holes, and starts to blow 10 to 30 cm from the front of the first partition wall water-cooled screen; after blowing for 2 to 5 minutes, it continues to move forward to 10 to 30 cm from the back of the first partition wall water-cooled screen and starts to blow; IV. After the first partition wall water cooling screen is purged, all subsequent partition wall water cooling screens shall be purged in sequence according to the same procedure; Ⅴ. After the purge is completed, the dust cleaning device is retracted to its original position.

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