Flushing structure at dry and wet interface of absorption tower flue

Abstract

The utility model discloses a flushing structure at the dry and wet interface of an absorption tower flue, which relates to the technical field of flushing equipment and comprises a flue body and an absorption tower body, the flue body is provided with a 90-degree break angle communicated with the side wall of the absorption tower body, the side wall of the flue body is fixedly connected with a hydraulic cylinder, and one end of the hydraulic cylinder penetrates through the inner wall of the flue body. The end, located in the flue body, of the hydraulic cylinder is movably connected with a hydraulic push rod, the side wall of the hydraulic push rod is fixedly connected with an installation base, the side wall of the installation base is fixedly connected with a servo motor, and the output end of the servo motor penetrates through the inner side wall of the installation base. Compared with the prior art, the device has the advantages that the flushed large scaling blocks can be efficiently crushed, the scaling blocks are ensured to be quickly crushed under the action of bidirectional shearing force, the risk that blades of the side-entering stirrer of the absorption tower are damaged is further reduced, and meanwhile, the possibility that a filter screen at an inlet of a slurry circulating pump is blocked is also reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of flushing equipment, in particular to a flushing structure at a dry and wet interface of a flue of an absorption tower. Background Art

[0002] The core equipment of wet limestone flue gas desulfurization process is the absorption tower. The exhaust gas containing SO 2 The unsaturated flue gas enters the absorption tower through the original flue. At the junction of the flue and the absorption tower inlet, the flue gas contacts the circulating sprayed slurry to form a dry-wet interface area. As the operation time of the absorption tower increases, the slurry and flue gas at the dry-wet interface of the absorption tower will generate calcium sulfate, which will cause scaling and reduce the cross-section of the flue gas circulation channel, affecting the stable operation of the absorption tower.

[0003] For example, the patent with announcement number CN219632141U discloses a flue dry-wet interface flushing mechanism for a desulfurization absorption tower, including a flue, an absorption tower, and a flushing mechanism installed at the junction of the flue and the absorption tower. The flue is provided with a 90-degree angle connected to the lower side wall of the absorption tower. The flushing mechanism includes a hollow circular ring vertically placed inside the flue, and two pairs of high-pressure nozzles are equidistantly arranged at the front end of the hollow circular ring; a support frame is connected to the other end of the hollow circular ring, and a hydraulic rod is integrally connected to the end of the support frame. A hydraulic cylinder is connected to the outer shell of the hydraulic rod, and the high-pressure nozzle includes a through pipe connected to the hollow circular ring. The above-mentioned flue dry-wet interface flushing mechanism for the desulfurization absorption tower has shortcomings. Although the device can flush the dry-wet interface, it has limitations. When the original flue gas flue is scaled and cleaned, the individual larger scale blocks flushed down fall into the slurry inside the absorption tower and cannot be dissolved in time, which will cause damage to the blades of the side-entry agitator of the absorption tower and blockage of the inlet filter of the slurry circulation pump, which seriously endangers the safe and stable operation of the desulfurization system.

[0004] Therefore, in order to solve such problems, we proposed a flushing structure at the dry and wet interface of the absorption tower flue. Utility Model Content

[0005] The purpose of the utility model is to provide a flushing structure at the dry-wet interface of the flue of an absorption tower, aiming to solve the problem in the above-mentioned background technology that the existing flushing mechanism for the dry-wet interface of the flue of a desulfurization absorption tower cannot be dissolved in time during use due to the large individual scale blocks flushed down, which easily causes damage to the agitator blades and clogging of the inlet filter of the slurry circulation pump.

[0006] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a flushing structure at the dry-wet interface of the flue of an absorption tower, comprising a flue body and an absorption tower body, wherein the flue body is provided with a 90-degree angle connected to the side wall of the absorption tower body, the side wall of the flue body is fixedly connected with a hydraulic cylinder, one end of the hydraulic cylinder penetrates the inner wall of the flue body, one end of the hydraulic cylinder located inside the flue body is movably connected with a hydraulic push rod, the side wall of the hydraulic push rod is fixedly connected with a mounting seat, the side wall of the mounting seat is fixedly connected with a servo motor, the output end of the servo motor penetrates the inner wall of the mounting seat, the output end of the servo motor is fixedly connected with a first gear, and the second gear is fixedly connected with a first gear. A second gear is meshedly connected to a side wall of a gear, and the lower end of the second gear is rotatably connected to the inner wall of the mounting seat through a pin shaft. The side wall of the second gear is meshedly connected to an outer gear ring, and the lower end of the outer gear ring is fixedly connected to a first rotating cylinder, and an end of the first rotating cylinder away from the outer gear ring passes through the inner wall of the mounting seat. The side wall of the first gear is meshedly connected to a third gear, and the lower end of the third gear is fixedly connected to the second rotating cylinder, and an end of the second rotating cylinder away from the third gear passes through the outer gear ring and the first rotating cylinder, and the side walls of the first rotating cylinder and the second rotating cylinder located outside the mounting seat are respectively fixedly connected to a plurality of crushing knives, and the second rotating cylinder is movably connected to the side wall of the hydraulic push rod.

[0007] Preferably, the end of the second rotating cylinder away from the third gear is fixedly connected to the first mounting cylinder, the first mounting cylinder is movably connected to the side wall of the hydraulic push rod, four first mounting columns are evenly and fixedly connected to the side wall of the first mounting cylinder, a mounting groove is opened at the end of the first mounting column away from the first mounting cylinder, a spring is fixedly connected to the inner wall of the mounting groove, one end of the spring is fixedly connected to a push column, the push column is slidably connected to the inner wall of the mounting groove, and a scraper is fixedly connected to the end of the push column away from the spring.

[0008] Preferably, the flue body is evenly provided with four sliding grooves, the side wall of the hydraulic push rod is fixedly connected with a second mounting cylinder, the second mounting cylinder is located at the end of the second rotating cylinder away from the third gear, the side wall of the second mounting cylinder is evenly fixedly connected with four second mounting columns, the end of the second mounting column away from the second mounting cylinder is fixedly connected with a sliding block, and the sliding block is slidably connected to the inner wall of the sliding groove.

[0009] Preferably, a flushing assembly is provided at one end of the hydraulic push rod away from the hydraulic cylinder, and the flushing assembly includes a mounting frame, the mounting frame is fixedly connected to the hydraulic push rod, one end of the mounting frame is fixedly connected to an annular tube, four nozzles are evenly fixedly connected to the side wall of the annular tube, one end of the nozzle is fixedly connected to a spray plate, and a number of water outlets are evenly opened on the side wall of the spray plate.

[0010] Preferably, two guide blocks are fixedly connected to the side walls at both ends of the sliding block, the angle between the two guide blocks is 180°, and the guide blocks are in a triangular shape.

[0011] Preferably, a branch pipe is fixedly connected to the side wall of the annular pipe, one end of the branch pipe away from the annular pipe penetrates the outer wall of the flue body, and one end of the branch pipe away from the annular pipe is connected to the fire fighting pipe.

[0012] Preferably, there is a gap between the end of the scraper close to the crushing knife and the crushing knife on the side wall of the second rotating cylinder.

[0013] Preferably, the hydraulic cylinder and the servo motor are electrically connected to an external controller.

[0014] Preferably, the hydraulic cylinder is bent at ninety degrees in the flue body, and the hydraulic cylinder forms a vertical section and a horizontal section by bending, and the hydraulic push rod is sleeved with the horizontal section of the hydraulic cylinder.

[0015] Preferably, the spray plate is an arc-shaped plate as a whole, and the spray plates connected to the four nozzles together form a circular ring structure.

[0016] The utility model has the following beneficial effects:

[0017] In the utility model, a servo motor is used to simultaneously drive two groups of crushing knives to rotate in opposite directions, so that larger scale blocks washed down can be efficiently crushed, ensuring that the scale blocks are quickly crushed under the action of bidirectional shear force, thereby reducing the risk of damage to the blades of the side-entry agitator of the absorption tower, and also reducing the possibility of clogging of the inlet filter of the slurry circulation pump, which helps to maintain the stable operation of the desulfurization system, reduce maintenance costs, and extend the service life of the equipment. Secondly, the servo motor also drives the scraper to scrape off the residual scale on the inner wall of the flue body through the first mounting cylinder, the first mounting column, the spring and the push column, further increasing the scale removal effect, ensuring the cleanliness of the inner wall of the flue, and helping to improve the desulfurization efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 A three-dimensional assembly diagram of a flushing structure at the dry-wet interface of an absorption tower flue proposed by the utility model;

[0019] Figure 2 A three-dimensional diagram of the internal structure of the flue in a flushing structure at the dry-wet interface of the flue of an absorption tower proposed by the utility model Figure 1 ;

[0020] Figure 3 A three-dimensional diagram of the internal structure of the flue in a flushing structure at the dry-wet interface of the flue of an absorption tower proposed by the utility model Figure 2 ;

[0021] Figure 4 A three-dimensional diagram of the internal structure of the flue in a flushing structure at the dry-wet interface of the flue of an absorption tower proposed by the utility model Figure 3 ;

[0022] Figure 5 It is a three-dimensional exploded schematic diagram of the internal structure of a mounting seat in a flushing structure at the dry-wet interface of an absorption tower flue proposed by the utility model;

[0023] Figure 6 It is a three-dimensional schematic diagram of a first mounting column in a flushing structure at a dry-wet interface of an absorption tower flue proposed by the utility model;

[0024] Figure 7 A three-dimensional exploded schematic diagram of the internal structure of the installation slot in the flushing structure at the dry-wet interface of the flue of an absorption tower proposed by the utility model;

[0025] Figure 8 This is a three-dimensional schematic diagram of the internal structure of a mounting seat in a flushing structure at the dry-wet interface of an absorption tower flue proposed by the utility model;

[0026] Fig. 9 It is a cross-sectional view of the second rotating cylinder in the flushing structure at the dry-wet interface of the flue of an absorption tower proposed by the utility model;

[0027] Fig.10 The utility model is a three-dimensional schematic diagram of a flushing component in a flushing structure at a dry-wet interface of an absorption tower flue.

[0028] Legend:

[0029] 1. Flue body; 101. Slide; 11. Hydraulic cylinder; 12. Hydraulic push rod; 13. Mounting seat; 131. Servo motor; 132. First gear; 133. Second gear; 134. Outer gear ring; 135. First rotating cylinder; 136. Crushing knife; 137. Third gear; 138. Second rotating cylinder; 14. Flushing assembly; 141. Mounting frame; 142. Ring pipe; 143. Nozzle; 144. Spray plate; 145. Water outlet; 15. First mounting cylinder; 151. First mounting column; 152. Mounting groove; 153. Spring; 154. Push column; 155. Scraper; 16. Second mounting cylinder; 161. Second mounting column; 162. Sliding block; 163. Material guide block; 2. Absorption tower body; 3. Branch pipe. DETAILED DESCRIPTION

[0030] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0031] In the description of the present utility model, it should be noted that the orientation or position relationship indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inside", "outside", etc. is based on the orientation or position relationship shown in the drawings, and is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present utility model. The terms "first", "second", and "third" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance. In addition, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection. It can be a mechanical connection or an electrical connection. It can be directly connected, or indirectly connected through an intermediate medium, or it can be a communication between the two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0032] Example 1

[0033] Combination Figure 1-Figure 10 A flushing structure at the dry-wet interface of an absorption tower flue comprises a flue body 1 and an absorption tower body 2. The flue body 1 is provided with a 90-degree angle connected to the side wall of the absorption tower body 2. A hydraulic cylinder 11 is fixedly connected to the side wall of the flue body 1. One end of the hydraulic cylinder 11 passes through the inner wall of the flue body 1. One end of the hydraulic cylinder 11 located inside the flue body 1 is movably connected to a hydraulic push rod 12. A mounting seat 13 is fixedly connected to the side wall of the hydraulic push rod 12. A servo motor 131 is fixedly connected to the side wall of the mounting seat 13. The output end of the servo motor 131 passes through the inner wall of the mounting seat 13. The output end of the servo motor 131 is fixedly connected to a first gear 132. The side wall of the first gear 132 is meshedly connected to a second gear 133. The lower end of the second gear 133 is connected to the inner wall of the mounting seat 13. The second gear 133 is rotatably connected to the inner wall of the mounting seat 13 through a pin shaft, the side wall of the second gear 133 is meshed with an outer gear ring 134, the lower end of the outer gear ring 134 is fixedly connected to a first rotating cylinder 135, the end of the first rotating cylinder 135 away from the outer gear ring 134 passes through the inner wall of the mounting seat 13, the side wall of the first gear 132 is meshed with a third gear 137, the lower end of the third gear 137 is fixedly connected to a second rotating cylinder 138, the end of the second rotating cylinder 138 away from the third gear 137 passes through the outer gear ring 134 and the first rotating cylinder 135, the side walls of the first rotating cylinder 135 and the second rotating cylinder 138 located outside the mounting seat 13 are respectively fixedly connected with a plurality of crushing knives 136, and the second rotating cylinder 138 is movably connected to the side wall of the hydraulic push rod 12.

[0034] The arrangement starts the servo motor 131 to rotate, so that the servo motor 131 drives the first gear 132 to rotate, so that the first gear 132 drives the second gear 133 and the third gear 137 to rotate at the same time, so that the second gear 133 drives the outer gear ring 134 to rotate, so that the outer gear ring 134 drives the first rotating cylinder 135 to rotate, and the third gear 137 drives the second rotating cylinder 138 to rotate, so that the second rotating cylinder 138 and the first rotating cylinder 135 drive a plurality of crushing knives 136 to rotate at the same time, and the crushing knives 136 on the side wall of the second rotating cylinder 138 and the crushing knives 136 on the side wall of the first rotating cylinder 135 rotate in opposite directions, thereby accelerating the crushing of large scale.

[0035] The end of the second rotating cylinder 138 away from the third gear 137 is fixedly connected to the first mounting cylinder 15, and the first mounting cylinder 15 is movably connected to the side wall of the hydraulic push rod 12. Four first mounting columns 151 are evenly fixedly connected to the side wall of the first mounting cylinder 15. A mounting groove 152 is provided at the end of the first mounting column 151 away from the first mounting cylinder 15. A spring 153 is fixedly connected to the inner wall of the mounting groove 152. A push column 154 is fixedly connected to one end of the spring 153. The push column 154 is slidably connected to the inner wall of the mounting groove 152. A scraper 155 is fixedly connected to the end of the push column 154 away from the spring 153. When the servo motor 131 drives the second rotating cylinder 138 to rotate, the second rotating cylinder 138 simultaneously drives the first mounting cylinder 15 to rotate, so that the first mounting cylinder 15 drives the four first mounting columns 151 to rotate, so that the first mounting column 151 drives the scraper 155 to rotate through the push column 154, thereby scraping off the residual scale on the inner wall of the flue body 1 after flushing the flushing assembly 14, thereby increasing the scale removal effect.

[0036] The flue body 1 is evenly provided with four slide grooves 101, and the side wall of the hydraulic push rod 12 is fixedly connected with the second mounting cylinder 16, and the second mounting cylinder 16 is located at the end of the second rotating cylinder 138 away from the third gear 137. The side wall of the second mounting cylinder 16 is evenly fixedly connected with four second mounting columns 161, and the end of the second mounting column 161 away from the second mounting cylinder 16 is fixedly connected with a slider 162, and the slider 162 is slidably connected to the inner wall of the slide groove 101, and is used to limit the movement of the flushing assembly 14 inside the flue body 1 by using the sliding connection between the slider 162 and the inner wall of the slide groove 101, and at the same time, the second mounting column 161 is used to support the hydraulic push rod 12.

[0037] A flushing assembly 14 is provided at one end of the hydraulic push rod 12 away from the hydraulic cylinder 11. The flushing assembly 14 includes a mounting frame 141. The mounting frame 141 is fixedly connected to the hydraulic push rod 12. An annular tube 142 is fixedly connected to one end of the mounting frame 141. Four nozzles 143 are evenly fixedly connected to the side wall of the annular tube 142. A spray plate 144 is fixedly connected to one end of the nozzle 143. A plurality of water outlets 145 are evenly opened on the side wall of the spray plate 144. The fire hose is connected to the annular tube 142 through the branch pipe 3. The opening of the nozzle 143 is controlled by a controller, and then the flushing water is output through the plurality of water outlets 145 on the side wall of the spray plate 144, thereby flushing the scale on the inner wall of the flue body 1.

[0038] Two material guide blocks 163 are fixedly connected to the side walls at both ends of the slider 162. The angle between the two material guide blocks 163 is 180°, and the material guide blocks 163 are triangular in shape. When the slider 162 slides on the inner wall of the slide groove 101, the slider 162 drives the material guide blocks 163 to slide on the inner wall of the slide groove 101, thereby scraping off the residual scale in the slide groove 101 and increasing the smoothness of the movement of the flushing component 14 inside the flue body 1.

[0039] A branch pipe 3 is fixedly connected to the side wall of the annular pipe 142, and one end of the branch pipe 3 away from the annular pipe 142 passes through the outer wall of the flue body 1, and one end of the branch pipe 3 away from the annular pipe 142 is connected to the fire pipe, which is used to connect the annular pipe 142 with the fire pipe through the branch pipe 3, thereby providing flushing water for the annular pipe 142.

[0040] There is a distance between one end of the scraper 155 close to the crushing knife 136 and the crushing knife 136 on the side wall of the second rotating cylinder 138 to avoid collision between the scraper 155 and the crushing knife 136 on the side wall of the second rotating cylinder 138 .

[0041] The hydraulic cylinder 11 and the servo motor 131 are electrically connected to an external controller for controlling the opening and closing of the hydraulic cylinder 11 , the servo motor 131 and the nozzle 143 by the controller.

[0042] The hydraulic cylinder 11 is bent at ninety degrees in the flue body 1 , and the hydraulic cylinder 11 is bent to form a vertical section and a horizontal section. The hydraulic push rod 12 is sleeved with the horizontal section of the hydraulic cylinder 11 to maintain the linear movement of the flushing assembly 14 inside the flue body 1 .

[0043] The spray plate 144 is an arc-shaped plate structure as a whole, and the spray plates 144 connected to the four nozzles 143 together form a circular ring structure, which is used to flush the inner wall of the flue body 1 more evenly and reduce flushing dead angles.

[0044] Working principle: After scaling, the suction force of the induced draft fan connected to the flue body 1 will increase, and the working current will increase. The current sensor is used to monitor the working current of the induced draft fan in real time. When the current becomes larger, the nozzle 143 is controlled to open by the controller, and then the flushing water is transported to the spray plate 144 through the branch pipe 3, and then output from the several water outlets 145 on the side wall of the spray plate 144, so as to flush the scaling on the inner wall of the flue body 1, and then by injecting high-pressure liquid into the hydraulic cylinder 11, the liquid is used to push the hydraulic push rod 12 out of the hydraulic cylinder 11, thereby pushing the flushing component 14 to move in the flue, and then flushing the scaling. The servo motor 131 is started to rotate through the controller, and the servo motor 131 drives the first gear 132 to rotate. The first gear 132 also drives the second gear 133 and the third gear 137 to rotate. The second gear 133 drives the outer gear ring 134 to rotate. The outer gear ring 134 drives the first rotating cylinder 135 to rotate, and the third gear 137 drives the second rotating cylinder 138 to rotate. The second rotating cylinder 138 and the first rotating cylinder 135 simultaneously drive a plurality of crushing knives 136 to rotate, and the crushing knives 136 on the side wall of the second rotating cylinder 138 and the crushing knives 136 on the side wall of the first rotating cylinder 135 rotate in opposite directions, thereby accelerating the crushing of large scale.

[0045] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A flushing structure at the dry-wet interface of an absorption tower flue, comprising a flue body (1) and an absorption tower body (2), characterized in that: The flue body (1) is provided with a 90-degree angle connected to the side wall of the absorption tower body (2); the side wall of the flue body (1) is fixedly connected to a hydraulic cylinder (11); one end of the hydraulic cylinder (11) passes through the inner wall of the flue body (1); one end of the hydraulic cylinder (11) located inside the flue body (1) is movably connected to a hydraulic push rod (12); the side wall of the hydraulic push rod (12) is fixedly connected to a mounting seat (13); the side wall of the mounting seat (13) is fixedly connected to a servo motor (131); the output end of the servo motor (131) passes through the inner wall of the mounting seat (13); the output end of the servo motor (131) is fixedly connected to a first gear (132); the side wall of the first gear (132) is meshingly connected to a second gear (133); the lower end of the second gear (133) is rotatably connected to the inner wall of the mounting seat (13) via a pin shaft. The side wall of the second gear (133) is meshingly connected with an outer gear ring (134), the lower end of the outer gear ring (134) is fixedly connected with a first rotating cylinder (135), one end of the first rotating cylinder (135) away from the outer gear ring (134) passes through the inner wall of the mounting seat (13), the side wall of the first gear (132) is meshingly connected with a third gear (137), the lower end of the third gear (137) is fixedly connected with a second rotating cylinder (138), one end of the second rotating cylinder (138) away from the third gear (137) passes through the outer gear ring (134) and the first rotating cylinder (135), the side walls of the first rotating cylinder (135) and the second rotating cylinder (138) located outside the mounting seat (13) are fixedly connected with a plurality of crushing knives (136), and the second rotating cylinder (138) is movably connected to the side wall of the hydraulic push rod (12).

2. The flushing structure at the dry-wet interface of the flue of the absorption tower according to claim 1, characterized in that: One end of the second rotating cylinder (138) away from the third gear (137) is fixedly connected to the first mounting cylinder (15), the first mounting cylinder (15) is movably connected to the side wall of the hydraulic push rod (12), four first mounting columns (151) are evenly and fixedly connected to the side wall of the first mounting cylinder (15), one end of the first mounting column (151) away from the first mounting cylinder (15) is provided with a mounting groove (152), the inner wall of the mounting groove (152) is fixedly connected to a spring (153), one end of the spring (153) is fixedly connected to a push column (154), the push column (154) is slidably connected to the inner wall of the mounting groove (152), and one end of the push column (154) away from the spring (153) is fixedly connected to a scraper (155).

3. The flushing structure at the dry-wet interface of the flue of the absorption tower according to claim 1, characterized in that: The flue body (1) is evenly provided with four slide grooves (101); a second mounting cylinder (16) is fixedly connected to the side wall of the hydraulic push rod (12); the second mounting cylinder (16) is located at an end of the second rotating cylinder (138) away from the third gear (137); four second mounting columns (161) are evenly fixedly connected to the side wall of the second mounting cylinder (16); an end of the second mounting column (161) away from the second mounting cylinder (16) is fixedly connected to a sliding block (162); the sliding block (162) is slidably connected to the inner wall of the slide groove (101).

4. The flushing structure at the dry-wet interface of the flue of the absorption tower according to claim 1, characterized in that: A flushing assembly (14) is provided at one end of the hydraulic push rod (12) away from the hydraulic cylinder (11). The flushing assembly (14) comprises a mounting frame (141). The mounting frame (141) is fixedly connected to the hydraulic push rod (12). An annular tube (142) is fixedly connected to one end of the mounting frame (141). Four nozzles (143) are evenly fixedly connected to the side wall of the annular tube (142). One end of the nozzle (143) is fixedly connected to a spray plate (144). The side wall of the spray plate (144) is evenly provided with a plurality of water outlets (145).

5. The flushing structure at the dry-wet interface of the flue of the absorption tower according to claim 3, characterized in that: Two material guide blocks (163) are fixedly connected to the side walls at both ends of the sliding block (162); the included angle between the two material guide blocks (163) is 180°, and the material guide blocks (163) are in a triangular shape.

6. The flushing structure at the dry-wet interface of the flue of the absorption tower according to claim 4, characterized in that: The side wall of the annular pipe (142) is fixedly connected to a branch pipe (3); one end of the branch pipe (3) away from the annular pipe (142) penetrates the outer wall of the flue body (1); and one end of the branch pipe (3) away from the annular pipe (142) is connected to a fire fighting pipe.

7. The flushing structure at the dry-wet interface of the flue of the absorption tower according to claim 2, characterized in that: An end of the scraper (155) close to the crushing knife (136) is spaced apart from the crushing knife (136) on the side wall of the second rotating cylinder (138).

8. The flushing structure at the dry-wet interface of the flue of the absorption tower according to claim 1, characterized in that: The hydraulic cylinder (11) and the servo motor (131) are electrically connected to an external controller.

9. The flushing structure at the dry-wet interface of the flue of the absorption tower according to claim 1, characterized in that: The hydraulic cylinder (11) is bent at ninety degrees in the flue body (1), and the hydraulic cylinder (11) is bent to form a vertical section and a horizontal section, and the hydraulic push rod (12) is sleeved with the horizontal section of the hydraulic cylinder (11).

10. The flushing structure at the dry-wet interface of the flue of the absorption tower according to claim 4, characterized in that: The spray plate (144) is an arc-shaped plate structure as a whole, and the spray plates (144) connected to the four nozzles (143) together form a circular ring structure.

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