Ash removal device suitable for partition wall water cooling screen

Abstract

The utility model 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 application belongs to the technical field of boiler ash removal, and more particularly to a kind of ash removal device suitable for partition wall water cooling screen. BACKGROUND

[0002] The boiler water cooling wall transmits the heat in high-temperature flue gas to the water vapor in the heat receiving surface tube bundle by convection, radiation and other ways to realize heat exchange. However, in the actual operation process, the fly ash impurities in the flue gas will adhere to the surface of the water cooling wall to form ash deposition, which affects the heat exchange efficiency of the heat receiving surface and the safe operation of the equipment. Therefore, water cooling wall ash removal is an important link to ensure the normal operation of the boiler. For medium and large-scale incineration boilers, multiple horizontal partition wall water cooling screens are usually arranged in the second and third flues to increase the heat exchange area of the water cooling wall and enhance the rigidity of the boiler structure. However, the traditional steam and shock wave ash removal method on both sides of the boiler is restricted by structural obstacles and cannot effectively clean the middle tube piece partition wall water cooling screen. The cleaning angle and range of vertical steam cleaning and water spray cleaning are limited, and the cleaning effect is relatively poor. Frequent cleaning not only increases the operation and maintenance cost, but also causes energy waste. In particular, the water cooling wall angle is more prone to ash deposition and coking.

[0003] In summary, in order to completely solve the problem of cleaning the middle tube piece partition wall water cooling screen and improve the heat exchange efficiency of the water cooling wall as much as possible, a combined ash removal device with simple structure and high cleaning efficiency needs to be developed. SUMMARY

[0004] The purpose of the embodiment of the application is to provide an ash removal device suitable for partition wall water cooling screen, which solves the problem that the traditional steam and shock wave ash removal method on both sides of the boiler is restricted by structural obstacles and cannot effectively clean the middle tube piece partition wall water cooling screen. The cleaning angle and range of vertical steam cleaning and water spray cleaning are limited, and the cleaning effect is relatively poor.

[0005] To achieve the above purpose, the technical scheme adopted by the application is: an ash removal device suitable for partition wall water cooling screen, comprising:

[0006] A crossbeam is fixedly connected to the ground by a channel steel support;

[0007] A sliding seat is slidingly connected to the crossbeam, 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;

[0008] A driving mechanism is installed on the sliding seat, which is used to drive the sliding seat to move and rotate the rotating pipe at the same time;

[0009] A first transmission mechanism is arranged between the driving mechanism and the crossbeam, which is used to drive the sliding seat to move along the crossbeam under the action of the driving mechanism;

[0010] A second transmission mechanism is arranged between the driving mechanism and the rotating tube, for transmitting power from the driving mechanism to the rotating tube to drive the rotating tube to rotate;

[0011] A steam pipe is arranged through the sliding seat and extends into the rotating tube, and the steam pipe is in sliding connection with the sliding seat, and the steam pipe is fixedly connected to the cross beam.

[0012] Preferably, the first transmission mechanism comprises:

[0013] A gear box is fixedly connected to the sliding seat;

[0014] A first bevel gear is fixedly sleeved on the output shaft of the driving mechanism;

[0015] A transmission shaft is arranged through the side wall of the gear box and is in rotational connection with the gear box;

[0016] A second bevel gear is fixedly connected to the transmission shaft, and the second bevel gear is in meshing connection with the first bevel gear;

[0017] A gear is fixedly connected to one end of the transmission shaft away from the second bevel gear;

[0018] A rack is fixedly connected to the cross beam, and the rack is in meshing connection with the gear.

[0019] Preferably, the second transmission mechanism comprises:

[0020] A first sprocket is fixedly connected to the output shaft;

[0021] A second sprocket is fixedly sleeved on the rotating tube;

[0022] A chain is mounted on the first sprocket and the second sprocket; so as to drive the rotating tube to rotate while the driving mechanism drives the sliding seat to move.

[0023] Preferably, it further comprises a water-cooled wall hole sealing mechanism and a rotating tube sealing mechanism.

[0024] Preferably, the water-cooled wall hole sealing mechanism comprises:

[0025] A casting layer is cast around the water-cooled wall hole, and the casting layer is cast by a steel mesh and high-aluminum refractory castable;

[0026] An aluminum silicate fiber board is fixedly connected to the casting layer, and the aluminum silicate fiber board has a low thermal conductivity, which can effectively prevent heat conduction and provide excellent heat insulation effect;

[0027] A water-cooled wall hole sealing cover is sleeved on the casting layer and the aluminum silicate fiber board;

[0028] The pouring layer, the aluminum silicate fiber plate, and the water cooling wall hole sealing cover are coaxially provided with a through hole, and the through hole is communicated with the water cooling wall hole.

[0029] Preferably, the rotary tube sealing mechanism comprises:

[0030] A cover body is fixedly connected to the water cooling wall hole sealing cover, and a protection air interface is arranged on the cover body.

[0031] A gas flow guide member is arranged in the cover body, and the gas flow guide member and the inner wall of the cover body form a pressure cavity; the gas flow guide member ensures that the gas in the pressure cavity flows along a preset path, so that the flue gas cannot leak.

[0032] Preferably, the water seal assembly is connected to the cover body, and the water seal assembly is used for discharging the water generated by the rotary tube and achieving the sealing effect.

[0033] Preferably, the water seal assembly comprises:

[0034] A connecting sleeve is fixedly connected to the cover body.

[0035] A flow guide cover is formed with a flow guide groove, and a flow guide hole is arranged on the flow guide groove.

[0036] A liquid flow guide pipe is fixedly connected to the flow guide cover.

[0037] A drain pipe penetrates the bottom of the connecting sleeve and extends into the liquid flow guide pipe; the drain pipe and the liquid flow guide pipe form a liquid flow channel.

[0038] Preferably, the first nozzle group and the second nozzle group are arranged at an angle with the rotary tube.

[0039] Preferably, a partition wall water cooling screen ash removal method comprises the following steps:

[0040] I. The harmonic ash removal device is continuously operated for 24 hours.

[0041] II. The ash removal device of the application is sequentially operated according to a set order.

[0042] III. Taking the first ash removal device as an example, the rotary tube of the ash removal device penetrates the water cooling wall hole and the partition wall water cooling screen hole to extend into the furnace to a position 10-30 cm away from the front surface of the first partition wall water cooling screen to start blowing; after blowing for 2-5 minutes, the rotary tube continues to move forward to a position 10-30 cm away from the back surface of the first partition wall water cooling screen to start blowing.

[0043] IV. After the blowing of the first partition wall water cooling screen is completed, all subsequent partition wall water cooling screens are sequentially blown according to the same procedure.

[0044] V. After purging is completed, the ash removal device is withdrawn to its original position.

[0045] The ash removal device suitable for the water cooling screen of the partition wall provided by the application has the beneficial effects that:

[0046] 1. The application comprises a cross beam fixedly connected to the ground through a channel steel, a sliding seat slidingly connected to the cross beam, a rotating pipe rotatably connected to the sliding seat, a first nozzle group and a second nozzle group arranged on the rotating pipe, a driving mechanism installed on the sliding seat, the driving mechanism being used to drive the sliding seat to move and drive the rotating pipe to rotate, a first transmission mechanism arranged between the driving mechanism and the cross beam and used to drive the sliding seat to move along the cross beam under the action of the driving mechanism, a second transmission mechanism arranged between the driving mechanism and the rotating pipe and used to transmit the power of the driving mechanism to the rotating pipe to drive the rotating pipe to rotate, and a steam pipe penetrating through the sliding seat and extending into the rotating pipe, the steam pipe being slidingly connected to the sliding seat and fixedly connected to the cross beam. The problems of the limited purging angle and range and the relatively poor ash removal effect in the background art are solved.

[0047] 2. The water cooling wall, the hole sealing mechanism and the rotating pipe sealing mechanism are arranged, so that the heat loss is prevented and the sealing beneficial effect is achieved.

[0048] 3. The water seal assembly is connected to the cover body, and the hydrophobic hole is arranged on the side of the gas flow guide piece close to the water seal assembly, so that the hydrophobic water generated by the rotating pipe is discharged, and the sealing effect is achieved.

[0049] 4. The application has the advantages of compact structure, effective solution to the ash removal problem of the intermediate partition wall water cooling screen and the corner of the water cooling wall, great improvement of the heat transfer efficiency of the water cooling wall, prolongation of the service life of the equipment, and guarantee of the safe and stable operation of the equipment.

[0050] 5. The combination process of steam blowing + harmonic blowing can target to strengthen the ash removal efficiency. The controllable intermittent steam blowing can guarantee the large-area purging effect of the partition wall water cooling screen, and the harmonic blowing can be used to focus on the corners and the surrounding areas that are difficult to cover, so that the daily fly ash aggregation phenomenon is reduced.

[0051] 6. The harmonic blowing device that is continuously operated for 24 hours can effectively improve the ash deposition degree of the water cooling wall, reduce the steam blowing frequency, reduce the steam consumption, and control the production operation cost.

[0052] 7. The application is suitable for all boilers provided with partition wall water cooling screens, and is especially beneficial to the transformation of old power plants, has the characteristics of convenient transformation, low equipment investment cost and good ash removal effect, and has remarkable economy. BRIEF DESCRIPTION OF DRAWINGS

[0053] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed to be used in the embodiments or prior art description will be briefly introduced. Obviously, the drawings in the following description only constitute some embodiments of the present application, and other drawings can be obtained by those skilled in the art without any creative effort.

[0054] Figure 1 A structure schematic diagram of a dust cleaning device suitable for a partition wall water cooling screen provided by the embodiments of the present application;

[0055] Figure 2 A structure schematic diagram of a first transmission mechanism and a second transmission mechanism provided by the embodiments of the present application;

[0056] Figure 3 A structure schematic diagram of a dust cleaning device provided by the embodiments of the present application; Figure 1 An enlarged structure schematic diagram of A in the middle;

[0057] Figure 4 A structure schematic diagram of a water seal assembly provided by the embodiments of the present application;

[0058] Figure 5 A structure schematic diagram of a water seal assembly provided by the embodiments of the present application;

[0059] Figure 6 An enlarged structure schematic diagram of B in the middle provided by the embodiments of the present application; Figure 1 An enlarged structure schematic diagram of B in the middle provided by the embodiments of the present application;

[0060] Figure 7 A structure schematic diagram of a side wall water cooling wall provided by the embodiments of the present application;

[0061] Figure 8 A structure schematic diagram of a side wall water cooling wall provided by the embodiments of the present application; Figure 7 An upside structure schematic diagram of a side wall water cooling wall provided by the embodiments of the present application;

[0062] Figure 9 An installation schematic diagram of a harmonic dust cleaning device provided by the embodiments of the present application.

[0063] In the drawings, various reference signs represent:

[0064] 1, crossbeam; 2, sliding seat; 3, servo motor; 4, speed reducer;

[0065] 5, first transmission mechanism; 501, gear box; 502, first bevel gear; 503, transmission shaft; 504, second bevel gear; 505, gear; 506, rack; 507, speed reducer output shaft;

[0066] 6, second transmission mechanism; 601, first sprocket; 602, second sprocket; 603, chain;

[0067] 7, water-cooled wall hole sealing mechanism; 701, pouring layer; 702, aluminum silicate fiber plate; 703, water-cooled wall hole sealing cover;

[0068] 8, rotary tube sealing mechanism; 801, cover body; 802, gas flow guide; 803, pressure cavity; 804, preset path; 805, hydrophobic hole; 806, protection air interface;

[0069] 9, water seal assembly; 901, connecting sleeve, 902, flow guide cover; 903, liquid flow guide pipe; 904, drain pipe; 905, water seal; 906, flow guide hole;

[0070] 10, steam pipe; 11, pressure reducer; 12, rotary tube; 13, flue; 14, side wall water-cooled wall; 15, two flues; 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 amplifier cover; 21, water-cooled wall pipe; 22, three flues; 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

[0071] In order to make the technical problems, technical solutions and beneficial effects of the present application clearer, the present application will be further described in detail below in combination with the drawings and examples. It should be understood that the specific examples described herein are only used to explain the present application and not to limit the present application.

[0072] 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.

[0073] It should be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only used to facilitate the description of the present application and simplify the description, and therefore cannot be understood as indicating or implying that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application.

[0074] In addition, the terms "first", "second", etc. are used only for descriptive purposes and should not be construed as implying or suggesting relative importance or an indicated number of technical features. Therefore, the features defined as "first", "second", etc. can explicitly or implicitly include one or more of the features. In the description of the present application, the meaning of "a plurality of" is two or more, unless otherwise specifically limited.

[0075] Please refer to Figures 1 to 6 Now a kind of ash removal device suitable for water cooling screen of partition wall provided by the embodiment of the present application will be described.

[0076] The ash removal device suitable for water cooling screen 16 of partition wall includes a crossbeam 1, a sliding seat 2, a driving mechanism, a first transmission mechanism 5, a second transmission mechanism 6, and a steam pipe 10.

[0077] 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 position of the channel steel support and the rotating pipe 12, which is used to support the rotating pipe 12 and reduce the friction during the rotation of the rotating pipe 12. A T-shaped guide rail is arranged on the sliding seat 2, a T-shaped sliding groove is arranged on the crossbeam 1, the sliding seat 2 is slidably connected to the T-shaped sliding groove of the crossbeam 1 through the T-shaped guide rail, the rotating pipe 12 is rotatably connected to the sliding seat 2 through a bearing, a first nozzle group 26 and a second nozzle group 27 are arranged on the rotating pipe 12, and the first nozzle group 26 and the second nozzle group 27 are both arranged at an angle with the rotating pipe 12, 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 nozzles 26 and the second nozzles 27 are distributed on the rotating pipe 12 at equal intervals and staggered.

[0078] The driving mechanism comprises a servo motor 3 and a speed reducer 4, the servo motor 3 is connected with the speed reducer 4 and is fixedly connected to the sliding seat 2 through bolts, and the driving mechanism is used for driving the sliding seat 2 to move and driving the rotating pipe 12 to rotate. A first transmission mechanism 5 is arranged between the driving mechanism and the cross beam 1 and is used for driving the sliding seat 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 fixedly connected to the sliding seat 2, a speed reducer output shaft 507 penetrating through the gear box 501 and in rotational connection with the gear box 501; a first bevel gear 502 fixedly sleeved on the speed reducer output shaft 507 in the gear box 501; a transmission shaft 503 penetrating through the side wall of the gear box 501 and in rotational connection with the side wall of the gear box 501; a second bevel gear 504 fixedly connected to one end of the transmission shaft 503 in the gear box 501, the second bevel gear 504 being in meshing connection with the first bevel gear 502; a gear 505 fixedly connected to one end of the transmission shaft 503 away from the second bevel gear 504; and a rack 506 fixedly connected to the cross beam 1 and in meshing connection with the gear 505.

[0079] The second transmission mechanism 6 is arranged between the driving mechanism and the rotating pipe 12 and is used for transmitting the power of the driving mechanism to the rotating pipe 12, so as to drive the rotating pipe 12 to rotate, so that the nozzles on the rotating pipe 12 can rotate and spray in the process of spraying steam, the spraying range of the nozzles is increased, and the dead angle of the nozzles is overcome. Specifically, the second transmission mechanism 6 comprises: a first sprocket 601 fixedly connected to the extension end of the speed reducer output shaft 507 outside the gear box 501; a second sprocket 602 fixedly sleeved on the rotating pipe 12; and a chain 603 connecting the first sprocket 601 and the second sprocket 602, so that the rotating pipe 12 is driven to rotate while the sliding seat 2 is driven to move by the driving mechanism.

[0080] The steam pipe 10 penetrates through the sliding seat 2 and extends into the rotating pipe 12, the steam pipe 10 is in sliding connection with the sliding seat 2, the steam pipe 10 is fixedly connected to the cross beam 1, a pressure reducer 11 is communicated on the steam pipe 10, a steam interface is arranged on the pressure reducer 11, and the pressure reducer 11 is used for reducing the pressure of steam generated by a boiler and supplying the steam to the soot blowing device for blowing soot from a target piece.

[0081] As a further preferred embodiment, the ash cleaning device further comprises a water-cooled wall hole sealing mechanism 7 and a rotary tube sealing mechanism 8. Specifically, the water-cooled wall hole sealing mechanism 7 comprises: a cast layer 701 cast around the water-cooled wall hole 24, the cast layer 701 being cast from a reinforced mesh and high-aluminum refractory cast material; an aluminum silicate fiber board 702 fixedly connected to the cast layer 701, the aluminum silicate fiber board 702 having a low thermal conductivity and being capable of effectively preventing heat conduction and providing superior heat insulation effect; a water-cooled wall hole sealing cover 703 sleeved on the cast layer 701 and the aluminum silicate fiber board 702; the cast layer 701, the aluminum silicate fiber board 702, and the water-cooled wall hole sealing cover 703 coaxially have a through hole, and the through hole is in communication with the water-cooled wall hole 24. The arrangement of the water-cooled wall hole sealing mechanism 7 can prevent heat loss, and at the same time, the flue gas has acidic and corrosive properties, preventing flue gas leakage, corrosion of equipment, and air pollution. The rotary tube sealing mechanism 8 comprises: a cover body 801 fixedly connected to the water-cooled wall hole sealing cover 703, the cover body 801 being provided with a protective air interface 806 connected to an air compressor; a gas flow guide 802 arranged in the cover body 801, and the gas flow guide 802 and the inner wall of the cover body 801 form a pressure chamber 803; the gas flow guide 802 ensures that the gas in the pressure chamber 803 flows along a preset path 804, so as to ensure that the flue gas cannot leak from the connection between the rotary tube 12 and the cover body 801.

[0082] As a further preferred embodiment, in order to be able to timely discharge the hydrophobic produced by the rotating tube 12 while also achieving a sealing effect, the rotating tube sealing mechanism 8 further comprises: a water seal assembly 9 connected to the cover body 801, the gas flow guide 802 is provided with a hydrophobic hole 805 on the side close to the water seal assembly 9, and the water seal assembly 9 is used to discharge the hydrophobic produced by the rotating tube 12, while also achieving a sealing effect. Specifically, the water seal assembly 9 comprises: a connecting sleeve 901, which is provided with external threads, and the cover body 801 is provided with internal threads, and the connecting sleeve 901 is fixedly connected to the cover body 801 through the external threads; a flow guide cover 902, which is formed with a flow guide groove, and a plurality of flow guide holes 906 are evenly arranged on the flow guide groove; a liquid flow guide pipe 903 fixedly connected to the flow guide cover 902; a drain pipe 904 penetrating through the bottom of the connecting sleeve 901 and extending into the liquid flow guide pipe 903; the drain pipe 904 and the liquid flow guide pipe 903 form a liquid flow channel, and the liquid flow channel forms a water seal 905 after receiving the hydrophobic to achieve a sealing effect. When the hydrophobic is too much, the hydrophobic will be discharged from the drain pipe 904 to achieve the purpose of drainage.

[0083] A method for cleaning the ash of a partition wall water cooling screen 16, please see Figures 1 to 9 , specifically as follows, four water cooling wall let holes 24 are arranged in the vertical direction of the side wall water cooling wall of the two flues 15, the distance between two adjacent water cooling wall let holes 24 is 2-4 meters, four partition wall water cooling screen let holes 25 are also arranged in the vertical direction of the partition wall water cooling screen, which are divided into four layers, the water cooling wall let holes 24 and the partition wall water cooling screen let holes are located on the same horizontal line in the horizontal direction, the diameters of the water cooling wall let holes 24 and the partition wall water cooling screen let holes are 25-80 centimeters, and the water cooling wall let pipe 28 of the partition wall water cooling screen 16 can be a thick-walled pipe with a thickness of more than 5 millimeters, or can be a wear-resistant cover plate or a surfacing process. Two ash cleaning devices of the present application are installed at each water cooling wall let hole 24 of each layer, and the two ash cleaning devices clean the partition wall water cooling screen 16 at the same time. The side wall water cooling wall is divided into a first layer, a second layer, a third layer, and a fourth layer from bottom to top in the vertical direction, the ash cleaning device of the first layer is a first ash cleaning device, the ash cleaning device of the second layer is a second ash cleaning device, the ash cleaning device of the third layer is a third ash cleaning device, and the ash cleaning device of the fourth layer is a fourth ash cleaning device. The frequencies of the first ash cleaning device, the second ash cleaning device, the third ash cleaning device, and the fourth ash cleaning device are all once every 8-48 hours.

[0084] The harmonic ash cleaning device is arranged at the top of the second flue 15 of the boiler and sealed by the water-cooled wall hole sealing mechanism 7. The harmonic ash cleaning device is opposite the intersection of the front partition water-cooled wall 17 and the rear partition water-cooled wall 18 of the partition water-cooled screen 16 to clean the dead angle that cannot be cleaned by the ash cleaning device. The harmonic ash cleaning device comprises a sound wave generator 19 and a sound amplifier cover 20.

[0085] The harmonic ash cleaning device is used in cooperation with the ash cleaning device to reduce the steam blowing frequency, reduce the steam consumption and reduce the operation cost.

[0086] The specific ash cleaning method is as follows:

[0087] I. The harmonic ash cleaning device is continuously operated for 24 hours.

[0088] II. The ash cleaning device suitable for the partition water-cooled screen 16 is sequentially operated according to the set order.

[0089] III. Taking the first ash cleaning device as an example, the rotating pipe 12 of the ash cleaning device extends into the furnace through the water-cooled wall hole 24 and the partition water-cooled screen hole 25 to the front surface of the first partition water-cooled screen 16 by 10-30 cm to start blowing. After blowing for 2-5 minutes, the rotating pipe 12 continues to move forward to the back surface of the first partition water-cooled screen 16 by 10-30 cm to start blowing. Then, the second ash cleaning device repeats the ash cleaning process of the first ash cleaning device, and so on.

[0090] IV. After the first partition water-cooled screen 16 is blown, all the subsequent partition water-cooled screens 16 are sequentially blown according to the same process.

[0091] V. After the blowing is completed, the ash cleaning device is retracted to the original position.

[0092] The above only describes the preferred embodiments of the present application and should not be used to limit the present application. Any modification, equivalent replacement and improvement made within the spirit and principle of the present application should be included in the protection scope of the present application.

Claims

1. A dust removal device suitable for water-cooled partition walls, characterized in that, include: The crossbeam is fixedly connected to the ground by channel steel supports; A slide block is slidably connected to the crossbeam, and a rotating tube is rotatably connected to the slide block. A first nozzle group and a second nozzle group are provided on the rotating tube. A drive mechanism is mounted on the slide block, and the drive mechanism is used to drive the slide block to move while simultaneously driving the rotating tube to rotate. A first transmission mechanism is disposed between the drive mechanism and the crossbeam, and is used to drive the slide to move along the crossbeam under the action of the drive mechanism; The second transmission mechanism is disposed between the drive mechanism and the rotating tube, and is used to transmit the power of the drive mechanism to the rotating tube to drive the rotating tube to rotate. A steam pipe passes through the slide block and extends into the rotating pipe, and the steam pipe is slidably connected to the slide block and fixedly connected to the crossbeam.

2. The dust removal device for water-cooled partition walls as described in claim 1, characterized in that, The first transmission mechanism includes: The gearbox is fixedly connected to the slide block; The first bevel gear is fixedly sleeved on the output shaft of the drive mechanism; A drive shaft passes through the side wall of the gearbox and is rotatably connected to the gearbox; The second bevel gear is fixedly connected to the drive shaft, and the second bevel gear meshes with the first bevel gear. A gear is fixedly connected to the end of the drive shaft away from the second bevel gear; A rack is fixedly connected to the crossbeam, and the rack meshes with the gear.

3. A dust removal device suitable for water-cooled partition walls as described in claim 2, characterized in that, The second transmission mechanism includes: The first sprocket is fixedly connected to the output shaft; The second sprocket is fixedly sleeved on the rotating tube; A chain is mounted on the first sprocket and the second sprocket to drive the rotating tube to rotate while the drive mechanism drives the slide to move.

4. A dust removal device suitable for water-cooled partition walls as described in any one of claims 1 to 3, characterized in that, It also includes a water-cooled wall perforation sealing mechanism and a rotary pipe sealing mechanism.

5. A dust removal device suitable for water-cooled partition screens as described in claim 4, characterized in that, The water-cooled wall perforation sealing mechanism includes: A casting layer is cast around the holes in the water-cooled wall. The casting layer is composed of a steel mesh and high-alumina refractory castable. Aluminum silicate fiberboard is fixedly connected to the casting layer. The aluminum silicate fiberboard has a low thermal conductivity, which can effectively prevent heat conduction and provide excellent heat insulation effect. A water-cooled wall hole sealing cover is fitted onto the casting layer and the aluminum silicate fiber plate; The casting layer, the aluminum silicate fiber board, and the water-cooled wall hole sealing cover are coaxially provided with through holes, and the through holes are connected to the water-cooled wall holes.

6. A dust removal device suitable for water-cooled partition walls as described in claim 5, characterized in that, The rotary tube sealing mechanism includes: The cover is fixedly connected to the water-cooled wall hole sealing cover, and the cover is provided with a protective air interface; A gas guide is disposed inside the hood, and the gas guide and the inner wall of the hood form a pressure chamber; the gas guide ensures that the gas in the pressure chamber flows along a preset path to ensure that the flue gas does not leak.

7. A dust removal device suitable for water-cooled partition walls as described in claim 6, characterized in that, Also includes: A water seal assembly is connected to the cover. The water seal assembly is used to drain the water generated by the rotating pipe and also to achieve a sealing function.

8. A dust removal device suitable for water-cooled partition screens as described in claim 7, characterized in that: The water seal assembly includes: A connecting sleeve is fixedly connected to the cover body; A flow guide cover has a flow guide groove, and a flow guide hole is provided on the flow guide groove; A liquid guide tube is 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 removal device suitable for water-cooled partition walls as described in claim 8, characterized in that: Both the first nozzle group and the second nozzle group are set at an angle to the rotating tube.

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