A slag blocking dredging auxiliary device for a thermal power plant slag crusher

Abstract

The present application relates to the technical field of slag crusher dredging, and discloses a power plant slag crusher clogging dredging auxiliary device, which comprises a slag crusher, the top of the slag crusher is fixedly connected with a converging hopper with inclined surfaces on both sides, a plurality of square through holes are formed in the bottom of the inclined surfaces, a plurality of push tooth plates are slidably connected in the through holes and are distributed in a staggered manner, closed storage boxes are fixedly arranged on the outer walls of the converging hopper on both sides, a hydraulic push rod and a guide telescopic rod are fixedly arranged on the inner walls of the boxes, a connecting push plate is fixedly arranged at one end of the push tooth plates, the hydraulic push rod and the guide telescopic rod are connected with the connecting push plate, the front ends of the push tooth plates are provided with inclined surfaces parallel to the inclined surfaces of the converging hopper, and the bottom surfaces correspond to the crushing rollers. The present application is characterized in that the staggered push tooth plates are driven by the hydraulic drive to extend into the converging hopper, the caked coke is mechanically extruded and pushed, the safety hazards of clogging and manual clogging removal are solved, the tooth plates are retracted into the boxes when the device is on standby, the inclined surfaces are flush with the inner walls, the normal slag falling is not disturbed, and the stable operation of the system is ensured.

Description

Technical Field

[0001] This invention relates to the field of slag crusher unblocking technology, specifically an auxiliary device for unblocking slag in a thermal power plant slag crusher. Background Technology

[0002] In the process of thermal power generation, the ash produced by boiler combustion needs to be crushed to the specified particle size by a slag crusher before it can enter the subsequent slag conveying, storage and comprehensive utilization stages. As the core key equipment of the slag removal system of thermal power plants, the operation stability of the slag crusher directly determines the continuous safe operation and power generation efficiency of the thermal power plant units. Once the slag crusher is blocked, it will directly lead to the shutdown of the slag removal system, which will force the boiler to operate at a reduced load or even shut down, causing huge economic losses.

[0003] Currently, the industry mainly uses two methods to deal with the problem of slag blockage in slag crushers: manual unblocking and existing auxiliary unblocking equipment. Among them, manual unblocking is the most common method. Operators need to use tools to go deep into the slag crusher to remove and break up the blockage. This is not only labor-intensive and has a harsh working environment, but also poses safety hazards such as high temperature, burns, and mechanical injuries.

[0004] Existing auxiliary dredging equipment mostly adopts a single mechanical impact or high-pressure purging structure, which has obvious technical defects: On the one hand, mechanical impact dredging equipment can only play a certain role in clearing loose ash and slag. For blockages of hardened coke slag, the impact force is insufficient, and the dredging effect is poor. Moreover, the impact process is prone to causing secondary wear on the crushing teeth, liners and other components inside the slag crusher, shortening the service life of the equipment. On the other hand, high-pressure purging dredging equipment is prone to ash and slag splashing, causing on-site environmental pollution. At the same time, the purging direction is fixed, making it difficult to accurately target the core area of ​​the blockage. It cannot effectively clear blockages in pipe corners and dead corners inside the equipment, and the dredging is not targeted and thorough. Summary of the Invention

[0005] To address the shortcomings of existing technologies, this invention provides an auxiliary device for clearing blockages in slag crushers in thermal power plants. Existing slag crusher blockage treatment methods involve manual slag removal, which is labor-intensive and poses safety hazards. Furthermore, traditional auxiliary equipment is ineffective at clearing hard, clump-like coke slag, causes secondary wear on internal components, and has dead zones for clearing blockages.

[0006] To achieve the above objectives, the present invention provides the following technical solution: an auxiliary device for unblocking slag in a thermal power plant slag crusher, comprising a slag crusher housing, a collecting hopper fixedly connected to the top of the slag crusher housing, the collecting hopper having sloping sides, several square through holes opened at the bottom of the sloping sides of the collecting hopper, and pushing tooth plates slidably connected to the inner walls of the several square through holes on both sides, the several pushing tooth plates on both sides of the bottom of the collecting hopper being staggered, and a closed storage box fixedly connected to the two sides of the outer wall of the collecting hopper at positions corresponding to the several pushing tooth plates, a hydraulic push rod fixedly connected to the center of the inner wall of the closed storage box away from the collecting hopper, a connecting push plate fixedly connected to one end of the several pushing tooth plates, the telescopic end of the hydraulic push rod being fixedly connected to the center of the connecting push plate, and an inclined surface parallel to the sloping surface of the inner wall of the collecting hopper opened at the end of the several pushing tooth plates away from the connecting push plate, the bottom surface of the several pushing tooth plates corresponding to the top of the crushing roller of the slag crusher housing.

[0007] Preferably, the main structure of the collecting hopper is an inverted truncated pyramid shape, and the bottom of the collecting hopper is fixedly connected to the top inlet of the crusher shell by a flange or welding. The inverted truncated pyramid shape cavity structure facilitates the accelerated convergence and discharge of materials to the bottom outlet, and the flange or welding fixing method ensures the overall connection strength of the auxiliary device when it is subjected to frequent mechanical impact reaction forces.

[0008] Preferably, both sides of the outer wall of the collection hopper are fixedly connected with enclosed storage boxes by bolts, and the enclosed storage boxes are rectangular boxes; the assembled bolt connection greatly facilitates the initial installation and subsequent maintenance and disassembly of on-site operators, and the regular and flat internal contour of the rectangular box provides reliable physical guidance space for the horizontal linear movement of the components.

[0009] Preferably, the pusher plates located on the left side of the bottom of the collecting hopper and the pusher plates located on the right side are arranged in a staggered and non-interfering manner in the horizontal projection; the staggered and non-interfering layout allows the pusher plates on both sides to alternately penetrate into the center of the slag pile, thereby continuously disrupting the structural system of the deep material.

[0010] Preferably, the cylinder end of the hydraulic push rod is fixedly connected to the inner wall of the enclosed storage box on the side away from the collection hopper, and multiple rows of square through holes are opened through the slope surface on both sides of the collection hopper near the bottom. The back plate of the enclosed storage box provides stable force support for the hydraulic push rod to bear the large load thrust, and the multiple rows of square through holes enable the reciprocating slag breaking action to accurately cover and directly act on the core low-level area where bridging is prone to occur.

[0011] Preferably, the distance between the pusher plates is equal to the left and right thickness of the pusher plates, the outer peripheral surface of the pusher plates fully fits the inner wall of the square through hole, and the inclined surface of the pusher plates coincides with the inclined surface on both sides of the collection hopper when the pusher plates are fully pulled back into the closed storage box; the equal thickness of the arrangement gap enhances the physical effect of breaking and loosening the hard coke residue, and the tight gap fit allows the pusher plates to scrape off the surface dust and prevent material leakage when performing retraction.

[0012] Preferably, when the pusher plate is fully pulled back into the closed storage box, the inclined surface at the front end of each pusher plate and the inclined surface on the corresponding side of the collecting hopper form a smooth and continuous coplanar structure; the smooth and continuous coplanar structure completely eliminates any obstruction or interference caused by internal mechanical protrusions to the normal daily falling material flow, ensuring the smooth and unobstructed flow of slag.

[0013] Preferably, the sum of the length of the push plate from the root of the front inclined surface to the connection point of the connecting push plate and the thickness of the connecting push plate itself is equal to half the internal length of the closed storage box. The maximum stroke of the hydraulic push rod from the fully retracted state to the fully extended state is equal to the internal length of the closed storage box. Precise size matching optimizes the internal space, ensuring that the push plate has sufficient extension depth to completely penetrate the decomposition and accumulation area, and can be completely hidden and contained within the protection range of the closed storage box in the maximum retracted state.

[0014] Preferably, the inner wall of the enclosed storage box has fixed ends of guide telescopic rods symmetrically fixed on both the left and right sides away from the connecting push plate. The telescopic ends of the guide telescopic rods are fixedly connected to the left and right sides of the connecting push plate, respectively. The maximum extension length of the guide telescopic rods is adapted to the length of the inner wall of the enclosed storage box. The symmetrically fixed guide telescopic rods provide stable guidance for the reciprocating motion of the connecting push plate and the pushing tooth plate. The matching length setting physically avoids overtravel derailment or mechanical jamming at the end of the motion.

[0015] Preferably, the guide telescopic rod includes a guide sleeve and a telescopic rod housing. The telescopic rod housing is slidably nested inside the guide sleeve. The inner end of the telescopic rod housing is fixedly connected to the connecting push plate. The telescopic rod housing and the guide sleeve have the same length. The upper, lower, left, and right sides of the connecting push plate are all in contact with the inner wall of the closed storage box to form a guide surface. The sliding pair formed by the guide sleeve and the telescopic rod housing, combined with the full contact between the connecting push plate and the inner wall of the closed storage box, forms a dual guide system. This absorbs the lateral force generated during push-pull operations and limits radial sway, thereby improving the rigidity and motion accuracy of the moving components.

[0016] This invention provides an auxiliary device for unblocking slag in a thermal power plant's slag crusher. It has the following beneficial effects: 1. This invention uses a hydraulic push rod to drive a connecting push plate, which in turn drives the pusher plates, which are staggered on both sides of the collecting hopper, to extend out from the square through hole and cut into the slag accumulation area at the top of the crushing roller of the slag crusher housing for compression and lateral division. At the same time, the inclined surface at the front end of the pusher plate scoops up and pushes the slag layer. The staggered action combines the crushing and dredging functions, which can directly decompose the hard and lumpy coke slag, replace the traditional manual slag removal and blowing operations, and improve the ability to dredge deep blockages.

[0017] 2. This invention retracts multiple sets of push tooth plates into the enclosed storage box, so that the inclined surface at the front end of the push tooth plate completely overlaps with the inclined surfaces on both sides of the collection hopper, forming a smooth and continuous coplanar structure. After the dredging operation is completed, the inner wall of the collection hopper is restored to a smooth material flow channel, avoiding the obstruction of normal ash and slag falling by the protruding auxiliary mechanical parts. In the non-operational state, it eliminates the interference of the equipment itself on the material flow and maintains the stable operation of the slag removal system.

[0018] 3. This invention provides a guide telescopic rod consisting of a guide sleeve and a telescopic rod housing inside a closed storage box, and keeps the four sides of the connecting push plate in close contact with the inner wall of the closed storage box, forming a straight double guide structure. This structure can absorb the lateral force generated when the toothed plate cuts into the unevenly stressed coke residue, limit the radial deviation and sway of the moving components, prevent the hydraulic push rod from being stuck due to uneven load, and improve the mechanical rigidity and reliability of the equipment during reciprocating dredging operations. Attached Figure Description

[0019] Figure 1 This is a perspective view of the present invention; Figure 2 This is a top view of the structure of the present invention; Figure 3 For the present invention Figure 2 Schematic diagram of the cross-sectional structure at point AA.

[0020] Among them, 1. Crusher housing; 2. Gathering hopper; 3. Square through hole; 4. Push tooth plate; 5. Enclosed storage box; 6. Connecting push plate; 7. Hydraulic push rod; 8. Guide telescopic rod; 81. Guide sleeve; 82. Telescopic rod housing; 9. Inclined surface. Detailed Implementation

[0021] The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0022] Please see the appendix Figure 1 To be continued Figure 3 This invention provides an auxiliary device for unblocking ash in a thermal power plant ash crusher, including a ash crusher housing 1. The ash crusher housing 1 continuously receives and crushes falling ash during normal operation. A collection hopper 2 is fixedly connected to the top of the ash crusher housing 1. The collection hopper 2 serves as a guide transition section of the ash removal system, concentrating and guiding the material to the crushing zone. The two sides of the collection hopper 2 are sloping surfaces, which utilize the gravity of the sloping surfaces to maintain the continuity of the normal falling of ash. Several square through holes 3 are opened at the bottom of the sloping surfaces on both sides of the collection hopper 2. The square through holes 3 provide working channels for unblocking by penetrating the housing and entering the interior. Pushing tooth plates 4 are slidably connected to the inner walls of the several square through holes 3 on both sides. When blockage occurs, the pushing tooth plates 4 extend smoothly from the square through holes 3 to directly contact the clumped ash. The several pushing tooth plates 4 on both sides of the bottom of the collection hopper 2 are staggered. The staggered distribution allows the ash to be squeezed and laterally divided at multiple points when the component extends into the ash accumulation area. Enclosed storage boxes 5 are fixedly connected to both sides of the outer wall of the collection hopper 2 and to the corresponding positions of several push tooth plates 4. In standby mode, the enclosed storage boxes 5 can completely isolate the internal moving components to prevent ash and slag from entering. A hydraulic push rod 7 is fixedly connected to the center of the inner wall of the enclosed storage box 5 away from the collection hopper 2. The control system provides sufficient linear driving force for reciprocating dredging operations by activating the hydraulic push rod 7. A connecting push plate 6 is fixedly connected to one end of several push tooth plates 4. The connecting push plate 6 is responsible for transmitting the hydraulic thrust synchronously and evenly to multiple sets of front tooth plates. The telescopic end of the hydraulic push rod 7 is fixedly connected to the center of the connecting push plate 6. The center force point ensures that the thrust distribution is balanced to avoid uneven load jamming when the piston rod extends. An inclined surface 9 parallel to the slope of the inner wall of the collection hopper 2 is opened at the end of several push tooth plates 4 away from the connecting push plate 6. When extending, the inclined surface 9 can scoop up the slag layer covering the crushing roller and push it inward. Several push tooth plates 4 have their bottom surfaces corresponding to the top of the crushing rollers of the crusher housing 1. During operation, the push tooth plates 4 are close to the roller surface, which can not only cut off the bottom bridging but also reduce the direct operating resistance of the crusher housing 1 itself. The main structure of the collecting hopper 2 is an inverted quadrangular frustum. The gradually shrinking cavity structure of the inverted quadrangular frustum is conducive to the material being accelerated to the bottom outlet. The bottom of the collecting hopper 2 is relatively fixedly connected to the top inlet of the crusher housing 1 by flanges or welding. The flange or welding method ensures the overall connection strength of the equipment when it is subjected to frequent impact reaction forces. The two sides of the outer wall of the collecting hopper 2 are fixedly connected with closed storage boxes 5 by bolts. The assembled bolt connection can facilitate the initial installation and subsequent maintenance and disassembly of the on-site operators. Furthermore, the enclosed storage box 5 is a rectangular box, and its regular and flat internal contour provides a reliable physical guiding space for the horizontal linear movement of the push plate assembly. Several push tooth plates 4 located on the left side of the bottom of the gathering hopper 2 and several push tooth plates 4 located on the right side are distributed in a staggered and non-interfering manner on the horizontal projection. The staggered and non-interfering distribution allows the push tooth plates 4 on both sides to alternately penetrate into the center of the slag pile, thereby continuously destroying the accumulation structure of deep materials. The cylinder end of the hydraulic push rod 7 is fixedly connected to the side of the inner wall of the enclosed storage box 5 away from the gathering hopper 2. The thick box back plate provides a stable force support benchmark for the hydraulic push rod 7 to bear the large load thrust. The square through holes 3 are opened in multiple rows in the area near the bottom of the slope on both sides of the gathering hopper 2. The multi-row through opening method allows the reciprocating slag breaking action to accurately cover and directly act on the core low-level area most prone to bridging. The distance between several pushing toothed plates 4 is equal to the thickness of the left and right sides of the pushing toothed plates 4. The mechanically arranged gaps of equal thickness enhance the physical effect of the toothed plate group on breaking and loosening hard coke residue. The outer peripheral surface of several pushing toothed plates 4 is fully in contact with the inner wall of the square through hole 3. The tight gap fit allows the pushing toothed plates 4 to scrape off surface dust and prevent material leakage when performing retraction. When several pushing toothed plates 4 are completely pulled back into the closed storage box 5, the inclined surface 9 coincides with the inclined surface on both sides of the converging hopper 2. In the overlapping state, the working mechanism is separated from the material area, so that the flow channel on the inner wall of the converging hopper 2 returns to its original smooth geometric shape. When the pushing toothed plates 4 are completely pulled back into the closed storage box 5, the hydraulic system stops pressurizing and maintains the normal avoidance and concealment working condition of the equipment. The inclined surface 9 at the front end of each pushing toothed plate 4 and the inclined surface on the corresponding side of the converging hopper 2 form a smooth and continuous coplanar structure. The coplanar structure eliminates any obstruction or interference caused by internal protrusions to the normal falling material flow. The length of the push plate 4 from the root of the front inclined surface 9 to the connection point of the connecting push plate 6 is the sum of the length and the thickness of the connecting push plate 6 itself. The sum of the length and the thickness serves as the core dimension design basis for determining the motion limit and interference margin of the entire moving component. It is equal to half the internal length of the closed storage box 5. The design of half the length ensures that all reciprocating motions can be completely covered and contained within the protection range of the closed storage box 5 in the maximum contraction state. The maximum stroke of the hydraulic push rod 7 from the fully contracted state to the fully extended state is equal to the internal length of the closed storage box 5. The size matching of the maximum stroke and the internal length ensures that the push plate 4 has sufficient extension depth to completely penetrate and decompose the central accumulation area. The left and right sides of the inner wall of the closed storage box 5 away from the connecting push plate 6 are symmetrically fixed with the fixed ends of the guide telescopic rods 8. The symmetrical fixed fulcrum establishes a stable foundation for the linear displacement of the auxiliary support components inside the closed storage box 5. The telescopic ends of the guide telescopic rods 8 are fixedly connected to the left and right sides of the connecting push plate 6 respectively. The guide telescopic rods 8 always follow the piston rod of the hydraulic push rod 7 to perform forward pushing and backward pulling actions synchronously. The maximum extension length of the guide telescopic rod 8 is adapted to the length of the inner wall of the enclosed storage box 5. The matching length setting physically avoids overtravel derailment or mechanical jamming at the end of the movement. The guide telescopic rod 8 includes a guide sleeve 81 and a telescopic rod housing 82. The sliding pair formed by the mutual sleeve of the guide sleeve 81 and the telescopic rod housing 82 is specially used to absorb the lateral force generated during the push-pull operation. The telescopic rod housing 82 is slidably nested inside the guide sleeve 81. The nesting structure restricts the radial deflection and swing of the connecting push plate 6 when cutting into slag blocks with extremely uneven resistance. The inner end of the telescopic rod housing 82 is fixedly connected to the connecting push plate 6. The fixed connection applies directional displacement constraints to both ends of the connecting push plate 6 in real time and continuously to maintain a precise linear motion trajectory. The design lengths of the telescopic rod housing 82 and the guide sleeve 81 are equal. The upper, lower, left, and right sides of the connecting push plate 6 are all in contact with the inner wall of the enclosed storage box 5 to form a guide surface.

[0023] Working principle: When the slag is falling normally, the hydraulic push rod 7 fixed in the closed collection box 5 on both sides of the outer wall of the collection hopper 2 remains in a retracted state. The hydraulic push rod 7 drives the connecting push plate 6 to pull each set of push tooth plates 4 into the closed collection box 5 for storage. At this time, the inclined surface 9 at the front end of the push tooth plate 4 is on the same plane as the inclined surface of the inner wall of the collection hopper 2. There are no obstructions in the flow channel of the collection hopper 2, so that the ash and slag fall into the slag crusher housing 1 along the inclined surface. When large pieces of coke slag accumulate and cause blockage inside the collection hopper 2, the hydraulic push rods 7 on both sides are controlled to work, causing the piston rods of the hydraulic push rods 7 to extend outward, thereby pushing the connecting push plate 6 to slide along the guide telescopic rods 8 at both ends. This causes multiple sets of push tooth plates 4 to move synchronously with the connecting push plate 6, and can pass through the square through holes 3 on both sides of the collection hopper 2, and then extend into the inside of the collection hopper 2. This allows the push tooth plates 4, which are staggered on both sides, to laterally cut into the clumped slag area, and can squeeze and divide the slag. At the same time, the push tooth plates 4 can directly insert into the slag accumulation area at the top of the crushing roller of the crusher housing 1, thereby causing the inclined surface 9 at the front end of the push tooth plates 4 to scoop up the slag layer covering the crushing roller and push it towards the center area. By controlling the hydraulic push rod 7 to perform reciprocating extension and retraction, the connecting push plate 6 drives the pushing tooth plates 4 on both sides to alternately insert and retract within the square through hole 3, thereby decomposing and breaking up the lumpy slag, allowing the blockage to fall into the slag crusher housing 1. After the unblocking operation is completed, the hydraulic push rod 7 is controlled to retract to its initial stroke, and the connecting push plate 6 pulls all the pushing tooth plates 4 back into the closed collection box 5, so that the inclined surface 9 is once again flush with the inner wall slope of the collection hopper 2, thereby restoring the equipment to normal slag discharge operation.

[0024] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An auxiliary device for unblocking slag in a thermal power plant slag crusher, comprising a slag crusher housing (1), characterized in that: The top of the slag crusher housing (1) is fixedly connected to a collecting hopper (2). The two sides of the collecting hopper (2) are sloping surfaces. Several square through holes (3) are opened at the bottom of the sloping surfaces on both sides of the collecting hopper (2). Pushing tooth plates (4) are slidably connected to the inner walls of the several square through holes (3) on both sides. The several pushing tooth plates (4) on both sides of the bottom of the collecting hopper (2) are staggered. Closed storage boxes (5) are fixedly connected to the two sides of the outer wall of the collecting hopper (2) at the positions corresponding to the several pushing tooth plates (4). A hydraulic push rod (7) is fixedly connected to the center of the inner wall of the storage box (5) away from the converging hopper (2). A connecting push plate (6) is fixedly connected to one end of several pushing tooth plates (4). The telescopic end of the hydraulic push rod (7) is fixedly connected to the center of the connecting push plate (6). An inclined surface (9) parallel to the slope of the inner wall of the converging hopper (2) is opened on the end of several pushing tooth plates (4) away from the connecting push plate (6). The bottom surface of several pushing tooth plates (4) corresponds to the top of the crushing roller of the crusher housing (1).

2. The auxiliary device for unblocking slag in a thermal power plant slag crusher according to claim 1, characterized in that: The main structure of the gathering hopper (2) is an inverted quadrangular truncated pyramid shape, and the bottom of the gathering hopper (2) is fixedly connected to the top inlet of the crusher housing (1) by means of flange or welding.

3. The auxiliary device for unblocking slag in a thermal power plant slag crusher according to claim 1, characterized in that: The closed storage box (5) is fixedly connected to both sides of the outer wall of the collection hopper (2) by bolts, and the closed storage box (5) is a rectangular box.

4. The auxiliary device for unblocking slag in a thermal power plant slag crusher according to claim 1, characterized in that: The pusher plates (4) located on the left side of the bottom of the gathering bucket (2) and the pusher plates (4) located on the right side are distributed in a staggered and non-interfering manner on the horizontal projection.

5. The auxiliary device for unblocking slag in a thermal power plant slag crusher according to claim 1, characterized in that: The cylinder end of the hydraulic push rod (7) is fixedly connected to the inner wall of the closed storage box (5) on the side away from the gathering hopper (2), and the square through holes (3) are opened in multiple rows in the area near the bottom of the slope on both sides of the gathering hopper (2).

6. The auxiliary device for unblocking slag in a thermal power plant slag crusher according to claim 1, characterized in that: The distance between the pusher plates (4) is equal to the left and right thickness of the pusher plates (4). The outer peripheral surface of the pusher plates (4) is fully in contact with the inner wall of the square through hole (3). When the pusher plates (4) are completely pulled back into the closed storage box (5), the inclined surface (9) coincides with the inclined surfaces on both sides of the gathering bucket (2).

7. The auxiliary device for unblocking slag in a thermal power plant slag crusher according to claim 6, characterized in that: When the pusher plate (4) is fully pulled back into the closed storage box (5), the inclined surface (9) at the front end of each pusher plate (4) and the slope surface on the corresponding side of the converging hopper (2) form a smooth and continuous coplanar structure.

8. The auxiliary device for unblocking slag in a thermal power plant slag crusher according to claim 1, characterized in that: The sum of the length of the push plate (4) from the root of the front inclined surface (9) to the connection point of the connecting push plate (6) and the thickness of the connecting push plate (6) itself is equal to half the internal length of the closed storage box (5). The maximum stroke of the hydraulic push rod (7) from the fully retracted state to the fully extended state is equal to the internal length of the closed storage box (5).

9. The auxiliary device for unblocking slag in a thermal power plant slag crusher according to claim 1, characterized in that: The inner wall of the closed storage box (5) is symmetrically fixed with the fixed ends of guide telescopic rods (8) on the left and right sides away from the connecting push plate (6). The telescopic ends of the guide telescopic rods (8) are fixedly connected to the left and right sides of the connecting push plate (6) respectively. The maximum extension length of the guide telescopic rods (8) is adapted to the length of the inner wall of the closed storage box (5).

10. The auxiliary device for unblocking slag in a thermal power plant slag crusher according to claim 9, characterized in that: The guide telescopic rod (8) includes a guide sleeve (81) and a telescopic rod housing (82). The telescopic rod housing (82) is slidably nested inside the guide sleeve (81). The inner end of the telescopic rod housing (82) is fixedly connected to the connecting push plate (6). The telescopic rod housing (82) and the guide sleeve (81) have the same length. The upper, lower, left and right sides of the connecting push plate (6) are all in contact with the inner wall of the closed storage box (5) to form a guide surface.

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