A boiler bottom ash handling apparatus that is easy to maintain

Abstract

This invention relates to the field of boiler bottom ash treatment technology, and provides a boiler bottom ash treatment device that is easy to maintain. The device includes a housing, with two crushing rollers rotatably connected to the inner wall of the housing. These crushing rollers are driven by a motor and interlock. A turntable is connected to the rear end of one of the crushing rollers via a transmission assembly. A crushing drum is located at the bottom of the turntable and is fixedly connected to the inner wall of the housing. A second crushing roller is located on the inner wall of the crushing drum, and a connecting rod is fixedly connected to the middle of the second crushing roller. This multi-stage crushing structure achieves efficient treatment of boiler bottom ash, improving both the crushing effect and processing efficiency. The two interlocking crushing rollers, driven by the motor, perform initial crushing of the bottom ash. An inclined baffle guides the bottom ash to fall precisely into the crushing area. The crushing rollers drive the turntable to rotate via the transmission assembly, and the turntable uses a universal joint to drive the connecting rod and the second crushing roller to move within the crushing drum.

Description

Technical Field

[0001] This invention relates to the field of boiler bottom ash treatment technology, specifically to a boiler bottom ash treatment device that is easy to maintain. Background Technology

[0002] In industrial production, boilers, as crucial energy conversion devices, are widely used in industries such as power, chemical, and metallurgy. During boiler operation, a large amount of bottom ash is generated. If this bottom ash is not treated promptly, it not only occupies significant storage space but may also cause secondary pollution due to accumulation, and even affect the normal operation of the boiler system. Therefore, efficient treatment of boiler bottom ash is a key link in ensuring the continuity of industrial production and reducing environmental pressure; boiler bottom ash treatment equipment has thus become an indispensable auxiliary device in industrial production.

[0003] Currently, most existing boiler bottom ash treatment equipment adopts a single crushing structure, using only one set of crushing rollers to process the bottom ash. This makes it difficult to thoroughly crush bottom ash with high hardness or large volume, resulting in low subsequent processing efficiency. At the same time, the power system of traditional equipment is relatively complex, often requiring multiple motors to drive different crushing components, which not only consumes more energy but also increases the failure rate and maintenance difficulty of the equipment. In addition, boiler bottom ash has a high temperature and easily generates a large amount of dust during processing. Existing equipment lacks effective cooling and dust prevention measures. High-temperature bottom ash can easily damage equipment components, and dust diffusion can also pollute the working environment and endanger the health of operators. Summary of the Invention

[0004] To address the shortcomings of existing technologies, this invention provides a boiler bottom ash treatment device that is easy to maintain, solving problems such as the difficulty in thoroughly crushing large-volume bottom ash, high energy consumption, and increased equipment failure rate and maintenance difficulty.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a boiler bottom ash treatment device that is easy to maintain, comprising a shell, two crushing rollers rotatably connected to the inner wall of the shell, the crushing rollers being driven by a motor and meshing with each other, a turntable connected to the rear end of one of the crushing rollers via a transmission assembly, a crushing barrel being provided at the bottom end of the turntable, the crushing barrel being fixedly connected to the inner wall of the shell, a second crushing roller being provided on the inner wall of the crushing barrel, a connecting rod being fixedly connected to the middle end of the second crushing roller, universal joints being provided at both the top and bottom ends of the connecting rod, the top universal joint being rotatably connected to the outer periphery of the bottom side of the turntable, and a fixing plate being rotatably connected to the bottom side of the bottom universal joint, the fixing plate being fixedly connected to the inner wall of the shell.

[0006] Preferably, the transmission assembly includes a drive pulley fixedly connected to the rear end of the first crushing roller, a driven pulley connected to the bottom side of the drive pulley via a belt, a rotating rod fixedly connected to the front end of the driven pulley, a protective cover fitted on the outer wall of the rotating rod, and the protective cover fixedly connected to the inner wall of the housing.

[0007] Preferably, a bevel gear one is fixedly connected to the outer wall of the middle end of the rotating rod, a bevel gear two is meshed with the bottom side of the bevel gear one, the bevel gear two is rotatably connected to the inner wall of the bottom end of the protective cover, and the bottom end of the bevel gear two is fixedly connected to the middle part of the turntable.

[0008] Preferably, a conveyor belt body is fixedly connected to the top right side of the housing, a shielding curtain is provided on the top left side of the conveyor belt body, the shielding curtain is fixedly connected to the housing, a recycling trough is fixedly connected to the bottom of the conveyor belt body, and a water tank is fixedly connected to the bottom end of the recycling trough.

[0009] Preferably, a spray pipe is fixedly connected to both the front end of the water tank and the rear end of the recycling tank, and a drain pipe is provided on the bottom side of the rear end of the water tank.

[0010] Preferably, each of the two crushing rollers is provided with a baffle on its top side, the baffle is fixedly connected to the inner wall of the housing, and both baffles are inclined toward the crushing roller.

[0011] Preferably, the second crushing roller is a centrifugal impeller structure, including blades, a hub, and a cover. The outer surface of the cover is provided with protruding ridges for crushing. The connecting rod is connected to the hub. An air inlet is provided at the center of the bottom of the crushing barrel. A volute collector is fixedly fitted on the outside of the crushing barrel. The volute collector and the outer wall of the crushing barrel together form a closed annular air collection chamber. Multiple air outlet slits communicating with the annular air collection chamber are evenly provided on the upper part of the side wall of the crushing barrel. A cyclone separator is fixed inside the shell. The tangential inlet of the cyclone separator is connected to the top outlet of the volute collector through an air guide pipe. The bottom of the cyclone separator is provided with an airlock discharge valve, and its top center is connected to the air inlet at the bottom of the crushing barrel through a return pipe to form a closed airflow loop.

[0012] A method for using a boiler bottom ash treatment device that is easy to maintain includes the following steps: Step 1: The boiler bottom ash is transported into the shell via the conveyor belt. Step 2: The crushing roller is driven by a motor to rotate, thereby initially crushing the boiler bottom ash. The crushed boiler bottom ash falls into the crushing bucket. Step 3: By rotating the second crushing roller inside the crushing barrel, the boiler bottom ash that falls into the crushing barrel is crushed again. Preferably, step one further includes: supplying cooler water to the spray pipe located in the recovery tank through an external pump body one, and supplying cooler water to the spray pipe located in the shell through an external pump body two, thereby spraying the boiler bottom ash that is conveyed into the shell by the conveyor belt body.

[0013] Preferably, in step two, when the motor drives the first crushing roller to rotate, since the two crushing rollers are interlocked, the crushing roller driven by the motor can cause the other crushing roller to rotate. When the first crushing roller rotates, it can drive the active pulley to rotate, and the active pulley then drives the driven pulley to rotate through the belt.

[0014] Preferably, when the driven pulley rotates, it can drive the rotating rod to rotate. The rotation of the rotating rod causes the first bevel gear on its outer wall to rotate. The rotation of the first bevel gear drives the second bevel gear to rotate. The rotation of the second bevel gear can drive the turntable to rotate, which in turn causes the turntable to move through the universal joint and the connecting rod to move. The movement of the connecting rod allows the second crushing roller to fit with the inner wall of the crushing barrel, thereby performing secondary crushing of the boiler bottom ash in the crushing barrel.

[0015] This invention provides a boiler bottom ash treatment device that is easy to maintain. It has the following beneficial effects: 1. This invention achieves efficient processing of boiler bottom ash through a multi-stage crushing structure, improving the crushing effect and processing efficiency. Two interlocking crushing rollers, driven by a motor, perform initial crushing of the bottom ash. An inclined baffle guides the bottom ash to fall precisely into the crushing area. The crushing rollers drive the turntable to rotate through a transmission component. The turntable uses a universal joint to drive the connecting rod and the second crushing roller to move inside the crushing barrel. The second crushing roller cooperates with the grooves on the barrel wall to form secondary crushing, significantly improving the fineness of the bottom ash. In addition, a single motor drives two stages of crushing mechanism simultaneously, reducing the number of power units, reducing energy consumption, simplifying the equipment structure, and facilitating the later inspection and maintenance of core components. This solves the problems of incomplete crushing and complex power systems in traditional equipment.

[0016] 2. In this invention, when the conveyor belt transports bottom slag, the spray pipe can cool down the high-temperature bottom slag to prevent equipment damage due to high temperature, while reducing dust flying. The shielding curtain can further block the spread of dust and protect the working environment. The recycling tank and the water tank form a water circulation system. The water after spraying is collected in the water tank through the recycling tank, which not only realizes the reuse of water resources, but also facilitates the cleaning of settled dust through the sewage pipe, reducing the cost of waste disposal. This design combines bottom slag treatment with environmental protection measures, which not only improves the service life of the equipment, but also meets the requirements of clean production and solves the pain points of dust pollution and high temperature damage to equipment in the traditional treatment process. Attached Figure Description

[0017] Figure 1 This is a perspective view of the present invention; Figure 2 This is a schematic diagram of the baffle of the present invention; Figure 3 This is a schematic diagram of the structure of the crushing roller of the present invention; Figure 4 This is a schematic diagram of the structure of the pulverizing bucket of the present invention; Figure 5 This is a schematic diagram of the structure of the water tank of the present invention; Figure 6 This is a schematic diagram of the second crushing roller structure of the present invention; Figure 7 This is a half-sectional view of the pulverizing barrel of the present invention; Figure 8 This is a schematic diagram of the cycloidal trajectory strengthening grinding mechanism of the present invention.

[0018] The components include: 1. Shell; 2. Shielding curtain; 3. Conveyor belt body; 4. Motor; 5. Spray pipe; 6. Recycling tank; 7. Water tank; 8. Baffle; 9. Crushing roller one; 10. Crushing barrel; 11. Fixed plate; 12. Crushing roller two; 13. Drive pulley; 14. Driven pulley; 15. Protective cover; 16. Turntable; 17. Connecting rod; 18. Bevel gear one; 19. Bevel gear two; 20. Rotating rod; 21. Universal joint; 23. Volute type collector. Collector; 25. Air guide pipe; 26. Return pipe; 101. Air inlet; 102. Air outlet slit; 121. Blade; 122. Hub; 123. Wheel cover; 231. Annular air collecting chamber; 241. Cyclone separator; 242. Airlock discharge valve; 30. Planetary gear train; 301. Sun gear; 302. Planetary gears; 303. Planetary gear shaft; 31. Planet carrier; 32. Track conversion linkage; 33. One-way overrunning clutch; 34. Brake band. Detailed Implementation

[0019] The technical solutions of 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.

[0020] As one aspect of the present invention, please refer to the appendix. Figure 1 - Appendix Figure 8This invention provides a boiler bottom ash treatment device that is easy to maintain. It includes a housing 1, the bottom of which is connected to a collection device capable of collecting crushed boiler bottom ash. The top of the housing 1 is connected to a cover plate via a hinge. A sealing gasket is provided at the bottom of the cover plate. Workers can open the cover plate to maintain some internal components of the housing 1. Two crushing rollers 9 are rotatably connected to the inner wall of the housing 1. The crushing rollers 9 are driven by a motor 4, and the two crushing rollers 9 mesh with each other. The drive end of the motor 4 is fixed to the crushing roller 9 located on the right side. The non-drive end of motor 4 is connected to the outer wall of housing 1. A drive pulley 13 is fixedly connected to the rear end of one of the crushing rollers 9. Rotation of the crushing roller 9 drives the drive pulley 13. A driven pulley 14 is connected to the bottom side of the drive pulley 13 via a belt. The drive pulley 13 drives the driven pulley 14 to rotate via the belt. A rotating rod 20 is fixedly connected to the front end of the driven pulley 14. Rotation of the driven pulley 14 drives the rotating rod 20 to rotate. A protective cover 15 is fitted onto the outer wall of the rotating rod 20. The protective cover 15 allows for protection of the internal components. The components are protected to prevent dust from contacting them and causing damage. The protective cover 15 is fixedly connected to the inner wall of the housing 1. A turntable 16 is provided on the bottom side of the first crushing roller 9, and a crushing barrel 10 is provided at the bottom end of the turntable 16. An annular guide cover is provided at the top of the crushing barrel 10 to guide the boiler bottom ash after it has been crushed by the two crushing rollers 9. The crushing barrel 10 is fixedly connected to the inner wall of the housing 1. A second crushing roller 12 is provided on the inner wall of the crushing barrel 10. Grooves are provided on both the inner wall of the crushing barrel 10 and the outer wall of the second crushing roller 12, allowing the second crushing roller 12 to... The outer wall and the inner wall of the crushing barrel 10 are fitted together, so that the boiler bottom ash falling into the crushing barrel 10 can be crushed again. The middle end of the crushing roller 12 is fixedly connected to the connecting rod 17. The top and bottom ends of the connecting rod 17 are provided with universal joints 21. The top universal joint 21 is rotatably connected to the bottom outer periphery of the turntable 16. The rotation of the turntable 16 can drive the top end of the connecting rod 17 to rotate through the universal joint 21, thereby causing the connecting rod 17 to drive the crushing roller 12 to rotate. The bottom side of the bottom universal joint 21 is rotatably connected to the fixing plate 11, and the fixing plate 11 is fixedly connected to the inner wall of the shell 1.

[0021] A bevel gear 18 is fixedly connected to the outer wall of the middle end of the rotating rod 20. A bevel gear 19 is meshed with the bottom side of the bevel gear 18. When the rotating rod 20 rotates, it can rotate the bevel gear 18 on its outer wall. Since the bevel gear 18 and the bevel gear 19 mesh, the bevel gear 18 can rotate the bevel gear 19 when it rotates. The bevel gear 19 is rotatably connected to the inner wall of the bottom end of the protective cover 15, and the bottom end of the bevel gear 19 is fixedly connected to the middle part of the turntable 16. A conveyor belt body 3 is fixedly connected to the top right side of the shell 1. The conveyor belt body 3 is driven by a servo motor. A baffle curtain 2 is set on the top left side of the conveyor belt body 3. When the boiler bottom ash is transported into the shell 1 and falls from the conveyor belt body 3, dust will be generated. By setting the baffle curtain 2, the dust escape can be reduced. The baffle curtain 2 is fixedly connected to the shell 1. A recycling tank 6 is fixedly connected to the bottom of the conveyor belt body 3. A water tank 7 is fixedly connected to the bottom of the recycling tank 6. A low-temperature water can be supplied to the spray pipe 5 in the recycling tank 6 through an external pump body 1. The spray pipe 5 in the recycling tank 6 can spray the bottom of the conveyor belt body 3. At the same time, it can also spray the dust falling from the bottom of the conveyor belt body 3 and make the dust flow into the water tank 7 with the water flow. The water in the water tank 7 can be sprayed out through the spray pipe 5 in the shell 1 through an external pump body 2, thereby cooling the boiler bottom ash in the shell 1. Spray pipes 5 are fixedly connected to the front end of the water tank 7 and the rear end of the recovery tank 6. A drain pipe is provided on the bottom side of the rear end of the water tank 7, through which the dust settled in the water tank 7 can be discharged. Baffles 8 are provided on the top side of the two crushing rollers 9. The baffles 8 are fixedly connected to the inner wall of the shell 1, and both baffles 8 are inclined towards the crushing rollers 9. By setting the baffles 8, the boiler bottom ash falling from the conveyor belt body 3 can be guided to fall between the two crushing rollers 9, so that the two crushing rollers 9 can crush it.

[0022] As another aspect of the present invention, please refer to the appendix. Figure 1 - Appendix Figure 5 A method for using a boiler bottom ash treatment device that is easy to maintain includes the following steps: Step 1: The boiler bottom ash is transported into the shell 1 by the conveyor belt body 3. Low-temperature water is transported to the spray pipe 5 located in the recovery tank 6 by the external pump body 1 and to the spray pipe 5 located in the shell 1 by the external pump body 2, thereby spraying the boiler bottom ash transported into the shell 1 by the conveyor belt body 3. Step 2: The crushing roller 9 is driven by motor 4 to rotate, thereby initially crushing the boiler bottom ash. The crushed boiler bottom ash falls into the crushing bucket 10. When motor 4 drives the crushing roller 9 to rotate, the two crushing rollers 9 mesh with each other, and the crushing roller 9 driven by motor 4 can make the other crushing roller 9 rotate. When the crushing roller 9 rotates, it can drive the drive pulley 13 to rotate, and the drive pulley 13 then drives the driven pulley 14 to rotate through the belt. Step 3: By rotating the second crushing roller 12 inside the crushing barrel 10, the boiler bottom ash that falls into the crushing barrel 10 is crushed again. When the driven pulley 14 rotates, it drives the rotating rod 20 to rotate. The rotation of the rotating rod 20 causes the bevel gear 18 on its outer wall to rotate. The rotation of the bevel gear 18 drives the bevel gear 19 to rotate. The rotation of the bevel gear 19 drives the turntable 16 to rotate. In turn, the turntable 16 moves through the universal joint 21 and the connecting rod 17 to move. The movement of the connecting rod 17 allows the crushing roller 12 to fit with the inner wall of the crushing barrel 10, thereby performing secondary crushing of the boiler bottom ash in the crushing barrel 10.

[0023] As a preferred embodiment, the second crushing roller 12 is a centrifugal impeller structure, including blades 121, a hub 122, and a cover 123. The outer surface of the cover 123 is provided with protruding ridges for crushing. The connecting rod 17 is connected to the hub 122. An air inlet 101 is opened at the center of the bottom of the crushing barrel 10. A volute collector 23 is fixedly fitted on the outside of the crushing barrel 10. The volute collector 23 and the outer wall of the crushing barrel 10 together form a closed annular air collection chamber 231. Multiple air outlet slits 102 communicating with the annular air collection chamber 231 are evenly opened on the upper part of the side wall of the crushing barrel 10. A cyclone separator 241 is fixed inside the shell 1. The tangential inlet of the cyclone separator 241 is connected to the top outlet of the volute collector 23 through an air guide pipe 25. An airlock discharge valve 242 is provided at the bottom of the cyclone separator 241. Its top center is connected to the air inlet 101 at the bottom of the crushing barrel 10 through a return pipe 26 to form a closed airflow loop.

[0024] Specifically, when the crushing roller 12 rotates, it acts as a centrifugal impeller, drawing air from the air inlet 101 at the bottom of the crushing barrel 10, generating an upward spiral airflow within the crushing barrel 10. The crushed slag is carried by the upward airflow. Fine powder is carried by the airflow through the air outlet 102 on the wall of the crushing barrel 10 into the annular air collecting chamber 231, while coarser particles are thrown against the wall of the crushing barrel 10 due to gravity and centrifugal force, continuing to be ground.

[0025] The airflow carrying fine powder gathers in the volute collector 23 and then enters the cyclone separator 241 tangentially at high speed through the air guide pipe 25. Here, the high-speed kinetic energy of the airflow itself creates a strong rotating flow field in the cyclone separator 241, resulting in centrifugal separation. The fine powder is thrown against the wall of the cyclone separator 241 and falls down, while the purified air is drawn out from the top center.

[0026] The purified air is transported back to the air inlet 101 at the bottom of the pulverizing barrel 10 through the return pipe 26 and re-enters the circulation. This forms a complete, self-driven closed-loop airflow system, and the separation power in the cyclone separator 241 comes from the kinetic energy carried by the airflow when it enters tangentially from the air guide pipe 25.

[0027] As an alternative, a cycloidal trajectory enhanced grinding mechanism can also be provided to switch different and appropriate grinding frequencies when facing slag materials of different difficulty. The cycloidal trajectory strengthening grinding mechanism includes a planetary gear train 30, a trajectory conversion link 32, and a one-way overrunning clutch 33. The sun gear 301 of the planetary gear train 30 is fixedly sleeved on the end of the drive shaft of the turntable 16 and is coaxially arranged with the turntable 16. At least one planet gear 302 is externally meshed with the sun gear 301, and the planet gear 302 is rotatably connected to a planet carrier 31 through a planet gear shaft 303. The planet carrier 31 is rotatably connected to the drive shaft of the turntable 16. One end of the trajectory conversion link 32 is eccentrically hinged to the rim of the planet gear 302 through a first hinge point, and the other end is hinged to the housing of the universal joint 21 connected to the top of the link 17 through a second hinge point. The inner ring of the one-way overrunning clutch 33 is fixedly connected to the planet carrier 31, and its outer ring is engaged with a brake band 34 fixed to the inner wall of the housing 1.

[0028] Operating Rule 1: When the material in the crushing barrel 10 has normal hardness and particle size, and the movement resistance of the crushing roller 2 12 is small, the movement resistance transmitted by the planetary gear 302 through the trajectory conversion linkage 32 is also small. At this time, the torque generated by the planet carrier 31 in the planetary gear system due to the force, which attempts to rotate relative to the sun gear 301, is less than the maximum static friction torque applied by the fixed brake band 34 to the outer ring of the one-way overrunning clutch 33.

[0029] At this time, the one-way overrunning clutch 33 is in a wedge-engaged state, but because its outer ring is "locked up" by the friction force generated by the brake band 34, it cannot rotate. Therefore, the planetary carrier 31, which is fixed to the inner ring, is also completely locked and cannot revolve.

[0030] In this state, the rotation of the sun gear 301 only drives the planet gear 302 to rotate around its own planet gear shaft 303. The trajectory conversion link 32 connected to the eccentric point of the planet gear 302, i.e., the first hinge point, has a simple circular motion at its end. This circular motion is converted by the link 17, driving the universal joint 21 housing and the link 17, ultimately causing the crushing roller 12 to perform a relatively regular, constant-amplitude basic oscillating trajectory motion within the crushing barrel 10, achieving conventional and efficient grinding of fragile materials.

[0031] Operating Rule 2: When the crushing roller 12 encounters large, difficult-to-crush or hard slag, its motion resistance torque increases sharply. This increased resistance is transmitted in the opposite direction through the connecting rod 17 and the universal joint 21, significantly increasing the force acting on the trajectory conversion connecting rod 32 and the eccentric point of the planetary gear 302, thereby causing the driving torque of the planetary carrier 31 attempting to rotate to exceed the static friction torque threshold set by the brake band 34.

[0032] The brake band 34 can no longer lock the outer ring of the one-way overrunning clutch 33. The outer ring begins to overcome friction and slips relative to the brake band 34. Since the one-way overrunning clutch 33 is still in a wedged state (the direction in which the inner ring attempts to rotate is set to the locking direction), its inner ring (which is fixed to the planet carrier 31) begins to rotate slowly (i.e., revolve) along with the outer ring.

[0033] The initiation of the revolution of the planetary carrier 31 immediately transforms the motion of the planetary gear 302 from a simple "rotation" to a composite planetary motion combining "rotation" and "revolution." The trajectory of its eccentric point (first hinge point 321) instantly changes from a circle to a more complex introcycloid with cusps or loops. This change is transmitted and amplified through the trajectory conversion linkage 32, causing the motion trajectory of the crushing roller 12 to automatically and instantly switch from basic oscillation to a reinforced cycloid trajectory incorporating rapid impact, scraping, and swirling kneading. This complex trajectory can generate intense localized stress concentration and dislocation shearing on hard materials, thereby achieving efficient crushing of difficult-to-crush materials.

[0034] Once the refractory material is crushed under the action of the enhanced cycloidal trajectory, the motion resistance of the crushing roller 12 decreases. When the torque acting on the planetary carrier 31 falls below the static friction torque threshold of the brake band 34 again, the brake band 34 locks the outer ring of the one-way overrunning clutch 33, and the revolution of the planetary carrier 31 stops. The system automatically switches back to the basic oscillating trajectory mode described above until it encounters a high-load material again.

[0035] 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. A boiler bottom ash treatment device that is easy to maintain, characterized in that: The device includes a housing (1), on which two crushing rollers (9) are rotatably connected. The crushing rollers (9) are driven by a motor (4), and the two crushing rollers (9) mesh with each other. The rear end of one of the crushing rollers (9) is connected to a turntable (16) via a transmission assembly. A crushing bucket (10) is provided at the bottom end of the turntable (16). The crushing bucket (10) is fixedly connected to the inner wall of the housing (1). A crushing roller (12) is provided on the inner wall of the crushing bucket (10). A connecting rod (17) is fixedly connected to the middle end of the crushing roller (12). A universal joint (21) is provided at both the top and bottom ends of the connecting rod (17). The universal joint (21) at the top end is rotatably connected to the outer periphery of the bottom side of the turntable (16). A fixing plate (11) is rotatably connected to the bottom side of the universal joint (21) at the bottom end. The fixing plate (11) is fixedly connected to the inner wall of the housing (1).

2. The boiler bottom ash treatment equipment as described in claim 1, characterized in that: The transmission assembly includes a drive pulley (13) fixedly connected to the rear end of the crushing roller (9), a driven pulley (14) connected to the bottom side of the drive pulley (13) by a belt, a rotating rod (20) fixedly connected to the front end of the driven pulley (14), a protective cover (15) sleeved on the outer wall of the rotating rod (20), and the protective cover (15) fixedly connected to the inner wall of the housing (1).

3. The boiler bottom ash treatment equipment as described in claim 2, characterized in that: The transmission assembly also includes a bevel gear one (18) fixedly connected to the outer wall of the middle end of the rotating rod (20), a bevel gear two (19) meshing with the bottom side of the bevel gear one (18), the bevel gear two (19) being rotatably connected to the inner wall of the bottom end of the protective cover (15), and the bottom end of the bevel gear two (19) being fixedly connected to the drive shaft in the middle of the turntable (16).

4. The boiler bottom ash treatment equipment as described in claim 3, characterized in that: The top right side of the housing (1) is fixedly connected to the conveyor belt body (3). A shielding curtain (2) is provided on the top left side of the conveyor belt body (3). The shielding curtain (2) is fixedly connected to the housing (1). A recycling trough (6) is fixedly connected to the bottom of the conveyor belt body (3). A water tank (7) is fixedly connected to the bottom end of the recycling trough (6).

5. The boiler bottom ash treatment equipment as described in claim 4, characterized in that: Spray pipes (5) are fixedly connected to the front end of the water tank (7) and the rear end of the recycling tank (6), and a sewage pipe is provided on the bottom side of the rear end of the water tank (7).

6. The boiler bottom ash treatment equipment as described in claim 5, characterized in that: Both of the crushing rollers (9) are provided with baffles (8) on their top sides. The baffles (8) are fixedly connected to the inner wall of the housing (1), and both baffles (8) are inclined toward the crushing rollers (9).

7. The boiler bottom ash treatment equipment as described in claim 6, characterized in that: The second crushing roller (12) is a centrifugal impeller structure, including blades (121), a hub (122), and a wheel cover (123). The outer surface of the wheel cover (123) is provided with protruding ridges for crushing. The connecting rod (17) is connected to the hub (122). An air inlet (101) is opened at the center of the bottom of the crushing barrel (10). A volute collector (23) is fixedly fitted on the outside of the crushing barrel (10). The volute collector (23) and the outer wall of the crushing barrel (10) together form a closed annular air collection chamber (231). The upper side wall of the crushing barrel (10) is evenly provided with multiple air outlet slits (102) that communicate with the annular air collection chamber (231); a cyclone separator (241) is fixed inside the shell (1); the tangential inlet of the cyclone separator (241) is connected to the top outlet of the volute collector (23) through an air guide pipe (25); the bottom of the cyclone separator (241) is provided with an airlock discharge valve (242), and its top center is connected to the air inlet (101) at the bottom of the crushing barrel (10) through a return pipe (26) to form an airflow closed loop.

8. The boiler bottom ash treatment equipment as described in claim 7, characterized in that: It also includes a cycloidal trajectory strengthening grinding mechanism, which includes a planetary gear train (30), a trajectory conversion linkage (32), and a one-way overrunning clutch (33). The sun gear (301) of the planetary gear train (30) is fixedly sleeved on the end of the drive shaft of the turntable (16) and is coaxially arranged with the turntable (16). At least one planet gear (302) meshes externally with the sun gear (301), and the planet gear (302) is rotatably connected to a row of planet gear shafts (303). On the planetary carrier (31); the planetary carrier (31) is rotatably connected to the drive shaft of the turntable (16); one end of the trajectory conversion link (32) is eccentrically hinged to the rim of the planetary gear (302) through the first hinge point, and the other end is hinged to the housing of the universal joint (21) connected to the top of the link (17) through the second hinge point; the inner ring of the one-way overrunning clutch (33) is fixedly connected to the planetary carrier (31), and its outer ring is engaged with a brake band (34) fixed to the inner wall of the housing (1).

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