Anti-blocking slag discharging device

Abstract

The utility model discloses an anti-blocking slag discharging device, and belongs to the technical field of slag discharging devices.The anti-blocking slag discharging device comprises a shell, a bearing plate, a net rack plate, a smashing assembly and a motor are arranged in the shell, the bearing plate is fixedly installed in the shell, and a plurality of leaking holes are evenly formed in the bearing plate; the net rack plate is arranged below the bearing plate, the net rack plate is in sliding connection with the shell, a plurality of extruding and crushing mechanisms corresponding to the leaking holes are arranged on the net rack plate, and the crushing assembly is arranged at the bottom of the shell; the motor is used for driving the net rack plate and the smashing assembly. According to the anti-blocking slag discharging device, the crushing plates move up and down to crush slag into large blocks through up-down reciprocating movement of the net rack plate, the crushing plates expand outwards while moving up and down, the areas of the centers of the multiple crushing plates are exposed, the large blocks of slag enter the positions among the multiple crushing plates, and when the crushing plates are closed, the slag is extruded and crushed; and coal cinder can be crushed in a graded mode, and the problem that the coal cinder is cooled and accumulated into blocks is effectively avoided.

Description

Technical Field

[0001] This application belongs to the technical field of slag discharge devices, and particularly relates to a slag discharge device that prevents clogging. Background Technology

[0002] Industrial boiler ash removal systems effectively improve boiler operating efficiency and safety. These systems mainly consist of an ash trough, ash discharger, cooling system, conveying system, and control system. They are used to discharge and cool the ash from the boiler after combustion, preventing it from melting or damaging the furnace body. Furthermore, to prevent ash from clogging the system during ash removal, industrial boiler ash removal systems are generally equipped with anti-clogging designs. By optimizing the ash trough structure and employing advanced ash removal technology, smooth ash discharge is ensured, avoiding blockages and further improving the boiler's stability and reliability.

[0003] Chinese Patent Publication No. CN216384216U discloses a boiler slag removal device with a conveying mechanism. While this device facilitates the handling and cleaning of slag, boasts high cleaning efficiency, and is applicable to other boilers, it faces challenges. During boiler operation, the combustion of large quantities of coal generates substantial amounts of slag, which continuously increases with coal combustion. As the slag cools and accumulates during the slag removal process, these lumps become difficult to discharge from the slag outlet and may even cause blockages, affecting the boiler's normal operation. This accumulation leads to low slag removal efficiency, and simply scraping it off mechanically or manually reduces efficiency, increasing the workload of boiler maintenance and cleaning.

[0004] Therefore, we propose an anti-clogging slag discharge device to solve the above problems. Utility Model Content

[0005] The purpose of this application is to solve the problem of coal slag accumulation and easy blockage in existing boiler slag discharge devices, and to propose a slag discharge device that prevents blockage.

[0006] To achieve the above objectives, this application adopts the following technical solution:

[0007] A clogging-resistant slag discharge device includes a housing, wherein the housing contains:

[0008] A support plate is fixedly installed inside the outer shell, dividing the outer shell into a slag receiving chamber located on the support plate and a slag collecting chamber located below the support plate. Multiple leakage holes are evenly opened on the support plate.

[0009] A grid plate is disposed below the bearing plate. The grid plate is slidably connected to the outer shell. The grid plate is provided with multiple extrusion and crushing mechanisms corresponding to the holes. When the grid plate moves up and down, the extrusion and crushing mechanisms crush the condensed slag into blocks.

[0010] A crushing component, located at the bottom of the housing, is used to crush lumpy slag into granules;

[0011] The motor is used to drive the grid plate and the crushing assembly.

[0012] Preferably, the crushing mechanism includes multiple sets of guide rods disposed on the grid plate, and a cross-shaped groove centered on the center of the hole is provided on the bearing plate. A crushing plate is slidably disposed between the guide rods and the cross-shaped groove. A guide structure is also provided between the crushing plate and the cross-shaped groove. When the crushing plate moves up, the multiple crushing plates of the same crushing mechanism move away from each other.

[0013] Preferably, guide grooves are provided on the opposite side of the two guide rods in the same group, and guide blocks adapted to the guide grooves are installed at the bottom of the crushing plate. Multiple rollers are installed on the upper and lower end faces of the guide blocks.

[0014] Preferably, the guiding structure includes a guide post fixedly disposed in a cross-shaped groove, the crushing plate is provided with an inclined groove, and the guide post passes through the inclined groove and abuts against the inner wall of the inclined groove.

[0015] Preferably, the crushing plate has a cutting edge on one side facing each other, and a crushing nail is provided on the top of the crushing plate.

[0016] Preferably, the space frame plate is provided with mounting ears that extend out of the outer shell and are slidably connected to the outer shell, and the outer shell is fixedly provided with mounting rods that are slidably connected to the mounting ears, and a buffer spring is provided between the mounting rods and the mounting ears.

[0017] Preferably, the crushing assembly includes a tapered discharge pipe installed below the outer casing, a drive shaft rotatably disposed inside the discharge pipe, the drive shaft being fixedly connected to the output end of a motor, and a spiral crushing disc being mounted on the outer circumferential surface of the drive shaft.

[0018] Preferably, a push cylinder is installed on the top of the drive shaft, and a slide rod is installed on the bottom of the grid plate, which is slidably connected to the push cylinder. The top of the push cylinder is an inclined surface, and a limiting post is installed on the side of the slide rod that abuts against the inclined surface.

[0019] In summary, the technical effects and advantages of this application are as follows: This anti-clogging slag discharge device, through the reciprocating movement of the grid plate, causes the crushing plate to move up and down, crushing the slag into large pieces. As the crushing plate moves up and down, it expands outward, exposing the central area of ​​multiple crushing plates, allowing large slag pieces to enter between them. As the crushing plates move downward, they converge towards the center, squeezing and crushing the slag into smaller pieces. Finally, these smaller pieces are processed into slag particles by the crushing discs in the discharge pipe. This allows for graded crushing of coal slag, effectively preventing the problem of coal slag accumulating into lumps during cooling. This significantly improves the smoothness and efficiency of slag discharge. Compared to traditional mechanical scrapers or manual removal methods, it can more quickly and thoroughly handle the coal slag at the slag discharge port, reducing the risk of clogging and avoiding safety hazards such as abnormal pressure increases and decreased thermal efficiency inside the boiler caused by slag discharge port blockage. This ensures the continuous and stable operation of the boiler, reduces the risk of personnel directly contacting high-temperature coal slag, and improves the safety of the working environment.

[0020] This application utilizes multi-stage crushing processing. After the coal slag is crushed and granulated, it is easier to screen, classify and reuse it, such as as building material or road paving material, which helps to realize the recycling of resources. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the overall structure of this application;

[0022] Figure 2 This is a schematic diagram of the cross-sectional structure of this application;

[0023] Figure 3 This is a schematic diagram of the structure of the space frame plate in this application;

[0024] Figure 4 This is a schematic diagram of the structure of the fracture plate in this application;

[0025] Figure 5 This is a schematic diagram of the structure of the broken plate in the closed state in this application;

[0026] Figure 6 This is a schematic diagram of the structure of the broken plate in the separation state in this application;

[0027] Figure 7 This is a schematic diagram of the crushing component in this application.

[0028] In the diagram: 1. Outer shell; 11. Mounting rod; 12. Buffer spring; 2. Bearing plate; 21. Leakage hole; 3. Frame plate; 31. Guide rod; 32. Crushing plate; 321. Blade edge; 322. Crushing nail; 33. Guide block; 34. Guide column; 35. Inclined groove; 36. Push cylinder; 37. Slide rod; 38. Limiting column; 4. Crushing assembly; 41. Discharge pipe; 42. Drive shaft; 43. Crushing disc; 5. Motor. Detailed Implementation

[0029] The technical solutions in the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments.

[0030] Reference Figure 1-3 A slag discharge device for preventing clogging includes a housing 1, and inside the housing 1 are a support plate 2, a mesh frame plate 3, a crushing component 4 and a motor 5.

[0031] Motor 5 is used to drive the grid plate 3 and the crushing assembly 4, providing power output for the device.

[0032] The support plate 2 is fixedly installed inside the outer shell 1, dividing the outer shell 1 into a slag receiving chamber located on the support plate 2 and a slag collection chamber located below the support plate 2. The slag receiving chamber is located below the boiler combustion chamber. Coal is placed on the mesh of the boiler combustion chamber. The slag after combustion falls onto the support plate 2 for collection. Multiple holes 21 are evenly opened on the support plate 2. After being crushed, the slag falls into the slag collection chamber through the holes 21.

[0033] It should be noted that the high-temperature coal slag will cool down rapidly on the bearing plate 2 and caking, causing blockage. Conventional slag discharge devices cannot automatically break up the caking coal slag, resulting in more and more coal slag accumulation and more and more severe caking. In the end, the blockage of the slag discharge port may lead to abnormally high internal pressure of the boiler, reduced thermal efficiency and other safety hazards.

[0034] By setting up a grid plate 3, which is located below the support plate 2 and is slidably connected to the outer shell 1, the grid plate 3 can reciprocate in the vertical direction driven by the motor 5. The grid plate 3 is equipped with multiple extrusion and crushing mechanisms corresponding to the leakage holes 21. When the grid plate 3 moves up and down, the extrusion and crushing mechanisms crush the condensed slag into blocks. The extrusion and crushing mechanisms can crush the slag, break the slag caking, and further crush the large pieces of slag after crushing, which facilitates slag discharge and avoids slag accumulation and blockage.

[0035] Reference Figure 4-6The crushing mechanism includes multiple sets of guide rods 31 mounted on the grid plate 3. There are four sets of guide rods 31, with two guide rods in each set. There is a gap between the two guide rods 31. The bearing plate 2 has a cross-shaped groove centered on the center of the hole 21. A crushing plate 32 is slidably mounted between the guide rods 31 and the cross-shaped groove. The crushing plate 32 is located in the gap between the two guide rods 31 in the same set. A guide structure is also provided between the crushing plate 32 and the cross-shaped groove. When the crushing plate 32 moves upward, the multiple crushing plates 32 of the same crushing mechanism move away from each other. Under the action of the guide structure, the crushing plate 32 moves up and down with the grid plate 3. When the crushing plate 32 moves up and down, it continuously moves left and right to change its position.

[0036] Two guide rods 31 in the same group have guide grooves on their opposite sides. The bottom of the crushing plate 32 is equipped with a guide block 33 that matches the guide groove. The guide groove and the guide block 33 cooperate to limit the movement of the crushing plate 32, ensuring that the crushing plate 32 can move laterally stably along the guide rod 31. Multiple rollers are installed on the upper and lower end faces of the guide block 33. Under the action of the rollers, the friction between the crushing plate 32 and the guide rod 31 can be reduced, and the flexibility of the crushing plate 32 in lateral movement can be improved.

[0037] The guiding structure includes a guide post 34 fixedly installed in a cross-shaped groove. An inclined groove 35 is provided on the crushing plate 32. The guide post 34 passes through the inclined groove 35 and abuts against the inner wall of the inclined groove 35. The top of the inclined groove 35 is located on the outer side. When the crushing plate 32 moves upward, the crushing plate 32 extends out of the cross-shaped groove. The guide post 34 presses against the side wall of the inclined groove 35 to apply a lateral force to the crushing plate 32, causing the crushing plate 32 to rise and move outward at the same time. When the crushing plate 32 moves downward, it moves inward and resets under the guiding action of the inclined groove 35.

[0038] The crushing plate 32 has a cutting edge 321 on one side facing each other, and a crushing nail 322 is provided on the top of the crushing plate 32. When the crushing plate 32 moves up and down, it will frequently extend out of the bearing plate 2 to impact the slag on the bearing plate 2. Under the action of the crushing nail 322, the slag is crushed. As the crushing plate 32 expands outward, the space at the center of the multiple crushing plates 32 in the same group is exposed. The crushed slag is between the multiple crushing plates 32. When the crushing plates 32 close, the cutting edge 321 crushes it into small pieces of slag, which enter the slag collection chamber. This effectively avoids the problem of coal slag accumulating into lumps after cooling, thereby greatly improving the smoothness and efficiency of slag discharge. Compared with the traditional mechanical scraper or manual cleaning method, it can handle the coal slag at the slag outlet more quickly and thoroughly, reducing the risk of blockage.

[0039] The space frame plate 3 is provided with mounting ears that extend out of the outer shell 1 and are slidably connected to the outer shell 1. The outer shell 1 is fixedly provided with mounting rods 11 that are slidably connected to the mounting ears. A buffer spring 12 is provided between the mounting rod 11 and the mounting ears. Under the action of the buffer spring 12, the space frame plate 3 can quickly return to its original position during the up and down movement. The buffer spring 12 also plays a certain buffering role, providing buffer protection for the space frame plate 3.

[0040] The crushing component 4 is located at the bottom of the outer shell 1 and is used to crush the blocky slag into particles. After the crushed blocky slag enters the slag collection chamber, it is crushed again by the crushing component 4. After the slag is crushed into particles through multi-stage crushing, it is easier to screen, classify and reuse it, such as as building material or road paving material, which helps to realize the recycling of resources.

[0041] Reference Figure 2 and 7 The crushing component 4 includes a conical discharge pipe 41 installed below the outer casing 1. A drive shaft 42 is rotatably installed inside the discharge pipe 41. The drive shaft 42 is fixedly connected to the output end of the motor 5. A spiral crushing blade 43 is installed on the outer circumference of the drive shaft 42. After the motor 5 is started, it drives the drive shaft 42 to rotate, causing the crushing blade 43 to rotate. Since the discharge pipe 41 is conical, the spiral crushing blade 43 is located inside the discharge pipe 41. As the diameter of the discharge pipe 41 decreases, the space between the crushing blade 43 and the discharge pipe 41 also decreases. Therefore, it will play a crushing and cutting role on the slag, causing the slag to be crushed into smaller particles.

[0042] A push cylinder 36 is mounted on the top of the drive shaft 42, and a slide rod 37 is mounted on the bottom of the space frame plate 3, which is slidably connected to the push cylinder 36. The top of the push cylinder 36 is an inclined surface, and a limiting post 38 that abuts against the inclined surface is mounted on the side of the slide rod 37. When the drive shaft 42 rotates, it drives the push cylinder 36 to rotate. The relative position between the inclined surface at the top of the push cylinder 36 and the limiting post 38 changes continuously. The limiting post 38 moves along the contour of the inclined surface, thereby driving the slide rod 37 to move back and forth in the vertical direction, thus driving the space frame plate 3.

[0043] Working principle:

[0044] In use, the slag receiving chamber is located below the boiler combustion chamber. Coal is placed on the mesh screen of the boiler combustion chamber. The slag after combustion falls onto the bearing plate 2 for collection. The high-temperature slag on the bearing plate 2 will cool down rapidly and caking. The motor 5 is started, driving the drive shaft 42 to rotate. At the same time, the drive shaft 42 drives the push cylinder 36 to rotate. The relative position of the inclined surface at the top of the push cylinder 36 and the limiting post 38 changes continuously. The limiting post 38 will move along the contour of the inclined surface, thereby driving the slide rod 37 to move back and forth in the vertical direction, realizing the driving of the grid plate 3. Under the action of the guide structure, the crushing plate 32 moves up and down with the grid plate 3. When the crushing plate 32 moves up and down... As the crushing plate 32 moves back and forth, it continuously shifts left and right to change its position. When the crushing plate 32 moves up and down, it frequently extends out of the bearing plate 2 to impact the slag on the bearing plate 2. Under the action of the crushing nail 322, the slag is crushed. As the crushing plate 32 expands outward, it exposes the space at the center of the multiple crushing plates 32 in the same group. The crushed slag is between the multiple crushing plates 32. When the crushing plates 32 close, the blade 321 crushes it into small pieces of slag, which enter the slag collection chamber. The crushed slag enters the slag collection chamber. The crushing blade 43 rotates with the drive shaft 42 and crushes and cuts the slag, making the slag break into smaller particles.

Claims

1. A slag discharge device for preventing clogging, comprising a housing (1), characterized in that, The outer casing (1) contains: The support plate (2) is fixedly installed inside the outer shell (1) and divides the outer shell (1) into a slag receiving chamber located on the support plate (2) and a slag collecting chamber located below the support plate (2). Multiple leakage holes (21) are evenly opened on the support plate (2). A grid plate (3) is set below the bearing plate (2). The grid plate (3) is slidably connected to the outer shell (1). The grid plate (3) is provided with multiple extrusion and crushing mechanisms corresponding to the holes (21). When the grid plate (3) moves up and down, the extrusion and crushing mechanisms crush the condensed slag into blocks. The crushing component (4) is located at the bottom of the outer shell (1) and is used to crush blocky slag into granules; The motor (5) is used to drive the grid plate (3) and the crushing assembly (4).

2. The anti-clogging slag discharge device according to claim 1, characterized in that, The crushing mechanism includes multiple sets of guide rods (31) set on the grid plate (3). The bearing plate (2) is provided with a cross-shaped groove centered on the center of the hole (21). A crushing plate (32) is slidably arranged between the guide rods (31) and the cross-shaped groove. A guide structure is also provided between the crushing plate (32) and the cross-shaped groove. When the crushing plate (32) moves upward, the multiple crushing plates (32) of the same crushing mechanism move away from each other.

3. The anti-clogging slag discharge device according to claim 2, characterized in that, Two guide rods (31) in the same group have guide grooves on their opposite sides. The bottom of the crushing plate (32) is equipped with a guide block (33) that matches the guide groove. Multiple rollers are installed on the upper and lower surfaces of the guide block (33).

4. The anti-clogging slag discharge device according to claim 2, characterized in that, The guiding structure includes a guide post (34) fixedly installed in a cross-shaped groove, and an inclined groove (35) is provided on the crushing plate (32). The guide post (34) passes through the inclined groove (35) and abuts against the inner wall of the inclined groove (35).

5. The anti-clogging slag discharge device according to claim 2, characterized in that, The crushing plate (32) has a cutting edge (321) on one side facing each other, and a crushing nail (322) is provided on the top of the crushing plate (32).

6. The anti-clogging slag discharge device according to claim 2, characterized in that, The grid plate (3) is provided with mounting ears that extend out of the outer shell (1) and are slidably connected to the outer shell (1). The outer shell (1) is fixedly provided with mounting rods (11) that are slidably connected to the mounting ears. A buffer spring (12) is provided between the mounting rods (11) and the mounting ears.

7. The anti-clogging slag discharge device according to claim 1, characterized in that, The crushing assembly (4) includes a tapered discharge pipe (41) installed below the outer casing (1). A drive shaft (42) is rotatably installed inside the discharge pipe (41). The drive shaft (42) is fixedly connected to the output end of the motor (5). Spiral crushing blades (43) are installed on the outer circumferential surface of the drive shaft (42).

8. The anti-clogging slag discharge device according to claim 7, characterized in that, A push cylinder (36) is installed on the top of the drive shaft (42), and a slide rod (37) is installed on the bottom of the grid plate (3) and is slidably connected to the push cylinder (36). The top of the push cylinder (36) is an inclined surface, and a limiting post (38) that abuts against the inclined surface is installed on the side of the slide rod (37).

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