Efficient crushing device for waste incineration slag

Abstract

The invention relates to the technical field of slag processing, and discloses an efficient waste incineration slag crushing device which comprises a shell assembly, the shell assembly is provided with a crushing assembly, a screening unit is arranged at the bottom, close to the crushing assembly, of the shell assembly, and the crushing assembly comprises crushing rollers; a plurality of crushing hammers used for crushing slag are arranged on the surface of the crushing roller, and the multiple crushing hammers are distributed along the circumference of the outer side of the crushing roller in an array mode. Slag is efficiently crushed during rotary impact and rebound crushing, the slag is guided into the screening unit through the groove holes in the surface of the crushing roller and the material conveying groove, the particle size of the slag can be accurately controlled through the graded screening design of the first filter plate and the second filter plate, the problem that the particle size of a traditional crushing device is not uniform is solved, and the crushing efficiency and the screening precision are improved.

Description

Technical Field

[0001] The present invention relates to the technical field of slag processing, and in particular to a high-efficiency crushing device for waste incineration slag. Background Art

[0002] Incineration residue refers to the general term for slag, leaked slag, boiler ash and fly ash produced during the waste incineration process. Incineration ash contains a certain amount of heavy metal substances, which will cause environmental pollution if not properly handled. Incineration residue can generally be used as a building material. It can be made into lightweight aggregate, floor tiles and wall tiles for building materials. It has a greater potential market in replacing traditional building fillers.

[0003] Chinese patent application number CN202410615762.6 discloses a slag roller crushing device, including a processing box, a crushing assembly is provided on the inside of the processing box, the crushing assembly includes a transmission shaft rotatably connected to the processing box, a pressure roller is fixedly connected to the outer surface of the transmission shaft, an extrusion block is fixedly connected to the outer surface of the pressure roller, a feeding hopper for adding slag is provided on the upper side of the processing box, a support plate is fixedly connected to the inner surface of the feeding hopper, a turning assembly is provided on the lower side of the support plate, the turning assembly includes a support tube fixedly connected to the outer surface of the lower end of the support plate, the lower end of the support tube is fixedly connected to a mounting seat, the outer surface of the mounting seat is provided with a hinge; the mounting seat is connected to the support assembly.

[0004] According to the above-mentioned prior art, it is found that during the slag crushing process, due to the mismatch between the feed rate and the discharge rate, the slag entering the crushing area will pile up together, which will cause the slag to accumulate and be congested in the crushing area, thereby reducing the crushing efficiency.

[0005] Therefore, it is necessary to solve the above problems through a high-efficiency crushing device for waste incineration slag. Summary of the Invention

[0006] The object of the present invention is to provide a high-efficiency crushing device for waste incineration slag to solve the problems raised in the above background technology.

[0007] To achieve the above objectives, the present invention provides the following technical solution: a high-efficiency crushing device for waste incineration slag, comprising a housing assembly, the housing assembly being provided with a crushing assembly, and the housing assembly being provided with a screening unit near the bottom of the crushing assembly, the crushing assembly comprising a crushing roller, the crushing roller being located within the crushing assembly, the surface of the crushing roller being provided with a plurality of crushing hammers for crushing the slag, the plurality of crushing hammers being distributed in an array along the outer circumference of the crushing roller;

[0008] The shell assembly includes a crushing shell, wherein a first impact plate and a second impact plate are hingedly provided inside the crushing shell, and the second impact plate is located below the same side of the first impact plate, and the second impact plate is used to receive the slag crushed by the first impact plate;

[0009] The outer surface of the crushing shell is connected to a feed port, and the inner wall of the feed port is provided with a first guide plate, which is used to guide the slag toward the first impact plate. The bottom of the first guide plate is provided with a first flow detection unit, which is used to detect the feed amount data of the feed port.

[0010] Preferably, the screening unit includes a first filter plate and a second filter plate, the second filter plate is located below the first filter plate, and the second filter plate can cover the area of ​​the first filter plate, the bottom of the first filter plate is hinged with a first control unit, the bottom of the first control unit is provided with a movable plate, the movable plate can move axially along the first control unit, the bottom of the movable plate is provided with a second compression spring, and the second compression spring is located on the inner bottom wall of the crushing shell, the bottom of the second filter plate is provided with a second control unit, the bottom of the second control unit is provided with a placement rack, the outer side of the placement rack is provided with a limit frame, the length and width of the limit frame are consistent with the second filter plate, and the second filter plate is movably connected to the inner wall of the limit frame.

[0011] Preferably, the backs of the first impact plate and the second impact plate are hinged with a first circular tube and a second circular tube, the outer surfaces of the first circular tube and the second circular tube are movable through the crushing shell, and the ends of the first circular tube and the second circular tube located outside the crushing shell are provided with a first control rod and a second control rod.

[0012] Preferably, a discharge guide plate is provided at the bottom of the crushing shell, a bearing plate is provided at the bottom of the discharge guide plate, a driving power supply device is provided on the surface of the bearing plate, and the output end of the driving power supply device is connected to the transmission wheel through a conveyor belt;

[0013] The interior of the transmission wheel is fixedly connected to the end of the transmission shaft, and the transmission shaft is movably provided with a stabilizing platform close to the outer surface of the transmission wheel. A support frame is provided at the bottom of the stabilizing platform, and the side wall of the support frame is arranged on the outer surface of the crushing shell. The stabilizing platform cooperates with the support frame to reinforce and limit the transmission shaft.

[0014] Preferably, a plurality of buffer assemblies are provided above the support frame, and the buffer assemblies include a piston rod, the end of the piston rod is hinged to the support frame, and the end of the piston rod away from the support frame is hinged to the outer surface of the crushing shell through a fixing member, and the plurality of buffer assemblies are used to absorb the vibration generated by the crushing shell during the crushing process.

[0015] Preferably, a discharge port is provided on the surface of the load-bearing plate, the load-bearing plate is communicated with the interior of the crushing shell through the discharge port, and a discharge port is provided at the bottom of the load-bearing plate, the discharge port and the discharge port are communicated with each other, a plurality of support rods are provided at the bottom of the load-bearing plate, and each support rod is used to support the bottom of the load-bearing plate;

[0016] A second guide plate is provided on the inner wall of the discharge port, and a second flow detection unit is provided on the back of the second guide plate. The second flow detection unit is used to monitor the discharge amount of the crushed slag in real time, and the second guide plate is used to guide the crushed slag.

[0017] Preferably, the outer surface of the crushing roller is provided with a plurality of slots, and the plurality of slots are used for discharging the crushed slag in the direction of the first filter plate. A feed trough is provided between two adjacent crushing hammers, and the number of feed troughs is set to be multiple, and each feed trough is distributed in a circular array on the outer circumferential surface of the crushing roller, and the feed trough is used to temporarily transport the slag into the crushing area.

[0018] Preferably, when the first filter plate is in the first working state, the first control unit is in a fully extended state, the surface of the first filter plate is in contact with the bottom surfaces of the crushing roller and the crushing hammer at the same time, the first filter plate is bent downward along the outer contours of the crushing roller and the crushing hammer, and the second compression spring is in a fully compressed state;

[0019] When the first filter plate is in the second working state, the first control unit is in a semi-extended state, the middle area of ​​the first filter plate is in contact with the lower contours of the crushing roller and the crushing hammer, the middle area of ​​the first filter plate is slightly bent along the outer contours of the crushing roller and the crushing hammer, and the second compression spring is in a semi-compressed state.

[0020] Technical effects and advantages of the present invention:

[0021] 1. This invention utilizes a circumferential array of hammers distributed around the outer periphery of the crushing roller, combined with angle-adjustable first and second impact plates, to efficiently crush slag through rotational impact and rebound crushing. Slots on the crushing roller surface and a feed chute guide the slag into the screening unit. The graded screening design of the first and second filter plates precisely controls slag particle size, resolving the uneven particle size problem found in traditional crushing devices and improving crushing efficiency and screening accuracy.

[0022] 2. In this invention, a screening unit is provided, and the first filter plate switches between two operating states via a first control unit. In the first state, the filter plate bends to conform to the bottom contour of the breaker, and the rotating crushing roller scrapes the clogged slag into the crushing zone for secondary crushing. In the second state, the filter plate reciprocates at high frequency, cooperating with the second filter plate to crush and screen the slag, effectively solving the problem of filter plate clogging. The buffer assembly absorbs crushing vibrations through the piston rod, preventing damage to the equipment due to resonance. The first and second flow detection units monitor the feed and discharge volumes in real time, and the angle of the impact plate is adjusted in conjunction with each other to achieve slag diversion and crushing, preventing feed congestion, ensuring stable operation of the device, and extending its service life. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0024] Figure 2 It is a front view of the overall structure of the present invention;

[0025] Figure 3 This is a front view of the structure of the present invention in an overall opened state;

[0026] Figure 4 This is a schematic diagram of the first counterattack plate and related structures of the present invention;

[0027] Figure 5 This is a schematic structural diagram of the installation state of the limit frame and the crushing shell of the present invention;

[0028] Figure 6 for Figure 5 A in the middle is an enlarged structural diagram;

[0029] Figure 7 This is a schematic structural diagram of the installation state of the discharge port and the second guide plate of the present invention;

[0030] Figure 8 This is a schematic diagram of the first control unit and the first filter plate of the present invention in a first working state;

[0031] Figure 9 This is a schematic diagram of the first control unit and the first filter plate of the present invention in the second working state.

[0032] Figure: 1. Housing assembly; 101. Crushing housing; 102. First guide plate; 103. Feed port; 104. Support member; 105. First round tube; 106. First impact plate; 107. Second impact plate; 108. Second round tube; 109. First control rod; 110. Second control rod; 111. Discharge guide plate; 112. Discharge port; 113. Second guide plate; 114. Support rod; 115. Load-bearing plate; 2. Crushing assembly Components; 201, transmission shaft; 202, crushing roller; 203, crushing hammer; 204, transmission wheel; 205, piston rod; 206, fixing part; 207, support frame; 208, conveyor belt; 209, driving power supply equipment; 3, screening unit; 301, first filter plate; 302, first control unit; 303, limit frame; 304, second filter plate; 305, second control unit; 306, movable plate; 307, second compression spring. DETAILED DESCRIPTION

[0033] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0034] Example 1

[0035] The present invention provides Figures 1 to 9 The device shown is a high-efficiency crushing device for waste incineration slag, comprising a housing assembly 1 , a crushing assembly 2 and a screening unit 3 .

[0036] During use, after the slag enters the interior of the shell component 1, the crushing component 2 in the shell component 1 rotates and the slag entering the shell component 1 is rotationally crushed. Subsequently, the crushed slag particles fall to the surface of the screening unit 3, and then the screening unit 3 is used to screen and filter the crushed slag particles, thereby achieving consistency in the particle size of the crushed slag.

[0037] like Figure 3 、 Figure 5 、 Figure 8 and Figure 9 As shown, the crushing assembly 2 includes a crushing roller 202 and a drive shaft 201, and the outer surface of the drive shaft 201 is fixed at the axis of the crushing roller 202. A plurality of crushing hammers 203 are fixed on the outer surface of the crushing roller 202, and a feed trough is provided between the two crushing hammers 203 of the crushing roller 202. The feed trough is used to temporarily transport the slag into the crushing area. The drive shaft 201 and the crushing roller 202 are rotated so that the crushing hammers 203 contact and collide with the surface of the slag during the rotation process, thereby achieving the purpose of crushing the slag particles.

[0038] like Figure 1 and Figure 2 As shown, the shell assembly 1 includes a crushing shell 101, and a feed port 103 is provided on the outer surface of the crushing shell 101, and the feed port 103 is located at the upper left corner of the crushing shell 101. A first guide plate 102 is fixedly provided inside the feed port 103, and a first flow detection unit is provided on the back of the first guide plate 102. The first flow detection unit is used to detect the feed amount. The first guide plate 102 is used to guide the slag particles entering the crushing shell 101. When in use, the slag to be crushed is transported to the feed port 103 and enters the crushing shell 101 through the feed port 103 for crushing. In the process, the inclination angle of the first guide plate 102 is used to guide the slag particles so that the slag after entering directly enters the crushing area for crushing

[0039] like Figure 2 As shown, a support frame 207 and a fixing part 206 are provided on the outer surface of the crushing shell 101, and a stabilizing platform is provided on the surface of the support frame 207, and the interior of the stabilizing platform is rotatably connected to the outer surface of the transmission shaft 201. The left and right ends of the transmission shaft 201 pass through the crushing shell 101, and transmission wheels 204 are fixedly provided on the left and right ends of the transmission shaft 201. The stabilizing platform is used to limit the transmission shaft 201 to avoid eccentricity of the transmission wheel 204 and damage during the crushing process. A conveyor belt 208 is sleeved on the outer surface of the transmission wheel 204, and the other end of the conveyor belt 208 is transmission-connected to a driving power supply device 209. The bottom of the driving power supply device 209 is fixedly set on the surface of the load-bearing plate 115, and the driving power supply device 209 is used to cooperate with the conveyor belt 208 to achieve the crushing effect of the slag particles. The driving power supply device 209 can be a rotating drive device such as an electric motor or a brushless motor.

[0040] During use, the slag to be crushed is first conveyed into the interior of the crushing shell 101 through the feed port 103 on the crushing shell 101. The slag entering the crushing shell 101 moves toward the first impact plate 106 under the guidance of the first guide plate 102 and contacts the surface of the first impact plate 106. At this time, the slag is located in the crushing area. Subsequently, the driving power supply device 209 is turned on and the conveyor belt 208 is used to drive the transmission wheel 204, so that the transmission shaft 201 drives the crushing roller 202 and the crushing hammer 203 to rotate, and the crushing hammer 203 and the crushing roller 203 are driven to rotate. 2. The rotation of the slag causes the slag to be thrown toward the first impact plate 106 under the influence of centrifugal force, and collides with the surface of the first impact plate 106 and then rebounds to the surface of the breaker 203. Since the breaker 203 is always in a rotating state, the rebounded slag will collide with the breaker 203 again, thereby achieving the crushing of the slag. Then, some of the slag that does not meet the requirements will enter the surface of the second impact plate 107 again and enter the secondary crushing area, and be crushed in cooperation with the crushing roller 202 and the breaker 203 (the crushing process is consistent with the above-mentioned first impact plate 106 and will not be repeated here).

[0041] like Figure 2 As shown, a buffer assembly is hingedly provided on one side of the fixing member 206, and the buffer assembly includes a piston rod 205, a return spring is provided inside the piston rod 205, and the end of the piston rod 205 away from the fixing member 206 is hinged to the surface of the support frame 207. There are multiple piston rods 205, and the multiple piston rods 205 are symmetrically distributed on the left and right sides of the support frame 207. The multiple piston rods 205 are used to absorb the vibration generated by the crushing shell 101 during the crushing process and achieve the purpose of buffering.

[0042] like Figure 3 and Figure 5As shown, the screening unit 3 includes a first filter plate 301, which is located below the crushing roller 202. The first filter plate 301 is used to screen and filter the crushed slag particles. A first control unit 302 is provided at the bottom of the first filter plate 301. The first control unit 302 is hinged to the first filter plate 301 through a hinge. A movable plate 306 is provided at the end of the first control unit 302 away from the first filter plate 301. A second compression spring 307 is provided at the bottom of the movable plate 306. A second filter plate 304 is movably provided below the first filter plate 301. A second control unit 305 is provided at the bottom of the second filter plate 304. A second hinge is provided at the contact end of the second control unit 305 and the second filter plate 304, and the second hinge is used for the second control unit 305. The control unit 305 is hinged to the second filter plate 304, and the second filter plate 304 is used to perform secondary screening on the crushed slag. The crushed slag first falls onto the first filter plate 301. The first control unit 302 hinged at the bottom of the first filter plate 301 can be a linear drive device such as an electric push rod or a hydraulic push rod. Then the first filter plate 301 can move up and down through the first control unit 302 to assist in screening and improve screening efficiency. The slag that meets the sieve hole size of the first filter plate 301 falls through the sieve hole, and the slag that does not meet the requirements remains on the filter plate. After that, the slag that has passed the initial screening reaches the second filter plate 304, and then the second filter plate 304, under the action of the second control unit 305, performs secondary screening on the slag to further screen out the slag that meets the requirements.

[0043] It is worth noting that: the first control unit 302 and the second control unit 305 are both set to multiple, and each first control unit 302 and second control unit 305 are laterally symmetrically distributed on the left and right sides of the first filter plate 301 and the second filter plate 304, and the first control unit 302 and the second control unit 305 can be electric push rods, hydraulic push rods or other linear drive devices.

[0044] like Figure 3 and 5As shown, a discharge guide plate 111 is provided at the bottom of the crushing shell 101, and a bearing plate 115 is fixedly provided at the bottom of the discharge guide plate 111. A discharge port is provided on the surface of the bearing plate 115, and a limit frame 303 is fixedly provided on the inner wall of the discharge port. A discharge port 112 is provided at the bottom of the bearing plate 115. The discharge port 112 is used to receive the slag particles after crushing inside the crushing shell 101 and discharge them to the outside, and the discharge port 112 is communicated with the bearing plate 115 and the crushing shell 101 respectively. A second guide plate 113 is provided on the inner wall of the discharge port 112, and the second guide plate 113 is used to guide the crushed slag to avoid splashing due to the fast discharge speed during discharge. A second flow detection device is provided on the back of the second guide plate 113. Unit, uses the second flow detection unit to detect the discharge volume, the bottom of the load-bearing plate 115 is respectively provided with a support rod 114, and the number of the support rod 114 is set in multiple, and the load-bearing plate 115 provides support for the crushing shell 101 through the support rod 114 to avoid the vibration generated during the crushing process causing the crushing shell 101 to cause accidents such as tipping over, after two-stage screening, the qualified slag passes through the discharge guide plate 111 and the discharge port into the discharge port 112, and the second guide plate 113 on the inner wall of the discharge port 112 guides the crushed slag to avoid splashing due to the fast discharge speed during discharge, and the second flow detection unit on the back of the second guide plate 113 monitors the discharge volume in real time, and compares it with the feed volume monitored by the first flow detection unit.

[0045] like Figure 3 and Figure 4As shown, the crushing unit also includes a first impact plate 106 and a second impact plate 107, and the first impact plate 106 is located inside the crushing shell 101, and one side of the first impact plate 106 is hinged to the inside of the crushing shell 101, and the other side of the first impact plate 106 is hinged with a first circular tube 105, and the end of the first circular tube 105 away from the first impact plate 106 is provided with a second compression spring 307, a first control rod 109 is fixedly provided inside the first circular tube 105, and the end of the first control rod 109 away from the first circular tube 105 is fixedly arranged on the outside of the crushing shell 101, the first control rod 109 is used to drive the first circular tube 105 to move linearly, one side of the second impact plate 107 is hinged to the inner wall of the crushing shell 101, and the second impact plate 107 is located below the first impact plate 106, and the back of the second impact plate 107 is hinged. A second circular tube 108 is connected, and a second control rod 110 is fixedly provided at one end of the second circular tube 108 away from the second impact plate 107. The end of the second control rod 110 away from the second circular tube 108 is fixedly set on the outside of the crushing shell 101, and a support member 104 is provided on the side of the surface of the crushing shell 101 close to the first control rod 109. There are multiple support members 104, and the support members 104 are respectively fixed at the ends of the first control rod 109 and the second control rod 110. The support member 104 is used to provide supporting force for the first control rod 109 and the second control rod 110, and the first impact plate 106 is driven to deflect at an angle through the first control rod 109 and the first circular tube 105, thereby reducing the distance between the first impact plate 106 and the crushing roller 202 and the crushing hammer 203, thereby achieving the purpose of adjusting the crushing particle size of different slags.

[0046] In addition, a pressure sensor is provided on the side of the first impact plate 106 facing the crushing roller 202 and the crushing hammer 203, and the congestion of the slag between the first impact plate 106 and the crushing roller 202 during the feeding process is monitored in real time based on the pressure sensor. When the feeding rate is higher than the crushing rate at this time, a large amount of slag particles will accumulate in the area between the first impact plate 106 and the crushing roller 202. At this time, the pressure value detected by the pressure sensor will be higher than the normal threshold (because the crushing roller 202 and the crushing hammer 203 will also have a strong impact on the surface of the first impact plate 106 and generate high-intensity pressure on the first impact plate 106 in the process of crushing the slag, and the pressure sensor only needs to detect the constant pressure value after each hit of the first impact plate 106 to reflect the congestion of the slag), indicating that the slag particles are in a congested state at this time.

[0047] Specifically, during the crushing process, the first impact plate 106 and the second impact plate 107 are both hinged to the inner wall of the crushing shell 101, and the angle deflection is controlled by the first control rod 109 and the second control rod 110 respectively. A pressure sensor is provided on the side of the first impact plate 106 facing the crushing roller 202 and the crushing hammer 203. When the first flow detection unit detects that the feed volume is normal, but the second flow detection unit detects that the discharge volume is lower than the normal threshold, it is necessary to further determine whether congestion occurs. If it detects that the surface pressure value of the first impact plate 106 exceeds the threshold, it means that the feed speed is higher than the crushing speed, and a large amount of slag is accumulated and congested between the first impact plate 106 and the crushing roller 202. At this time, the first control rod 109 is controlled to drive the first circular tube 105 to move linearly, thereby deflecting the first impact plate 106 and increasing the distance between the first impact plate 106 and the crushing roller 202, allowing part of the slag to enter the area between the second impact plate 107 and the crushing roller 202. At the same time, the second control rod 110 is controlled to drive the second impact plate 107 to reduce the distance between it and the crushing roller 202. In this way, in the process of diverting the slag, it can effectively prevent the uncrushed slag from falling on the surface of the first filter plate 301 and the second filter plate 304 to cause blockage, thereby achieving the effect of diversion and crushing, and avoiding the slag from being congested in the crushing area of ​​the first impact plate 106 for a long time, resulting in reduced crushing efficiency.

[0048] It is worth noting that the first control rod 109 and the second control rod 110 are specifically linear drive devices, which can be hydraulic push rods or electric push rods, and the first control rod 109 and the second control rod 110 respectively apply pressure to the first impact plate 106 and one side of the first impact plate 106 to achieve the purpose of angular deflection of the first impact plate 106 and the second impact plate 107.

[0049] Example 2

[0050] Although the first control rod 109 and the second control rod 110 are used to respectively control the first impact plate 106 and the second impact plate 107 to deflect the angle, the slag originally blocked in the crushing area of ​​the first impact plate 106 is guided to the crushing area of ​​the second impact plate 107, thereby achieving the purpose of diverting the slag, alleviating the situation in which a large amount of slag is blocked in the first impact plate 106, resulting in reduced crushing efficiency and an imbalance in the rate of discharge and feed, the diversion will lead to uneven particle size of the crushed slag. Therefore, after the slag is diverted, it will not be able to pass through the sieve holes on the first filter plate 301 after falling onto the surface of the first filter plate 301, so that the slag of normal particle size cannot pass through the first filter plate 301, thereby causing a blockage problem on the first filter plate 301. Based on this, this solution proposes Example 2, and the specific adjustment steps are as follows:

[0051] The first flow detection unit and the second flow detection unit are used to detect the feed rate and the discharge rate respectively. If the discharge rate is still lower than the normal threshold after the diversion adjustment, the first control unit 302 is activated to drive the first filter plate 301 to frequently move up and down. As the first filter plate 301 moves up and down, the slag blocked on its surface is vibrated and screened. During this process, the discharge rate is still observed. If the discharge rate increases but is still lower than the normal discharge threshold, it is determined that a large amount of slag of different particle sizes exists on the surface of the first filter plate 301, causing the slag of normal particle size to be unable to pass through the first filter plate 301 and accumulate on the surface of the first filter plate 301. Then, the first control unit 302 is activated and controls the first filter plate 301 to move toward the crushing roller 202, so that the surface of the first filter plate 301 contacts the crushing roller 202 and the crushing hammer 203. Then, the first control unit 302 is continued to push upward, so that the first filter plate 301 bends along the lower outer contour of the crushing roller 202 and the crushing hammer 203 (for specific status, please refer to Figure 8 ), and the left and right sides of the first filter plate 301 are higher than the third and fourth quadrants of the crushing roller 202 and the crushing hammer 203. At this time, with the rotation of the crushing roller 202 and the crushing hammer 203, the slag with larger particle size that cannot pass through the sieve holes on the first filter plate 301 is scraped into the feed trough and transported along the axis of the rotating shaft toward the first impact plate 106. Since the left and right sides of the first filter plate 301 are higher than the first and second quadrants of the crushing roller 202 and the second crushing hammer 203, it can be ensured that the slag in the transportation process will not fall to the bottom again. Subsequently, the first control lever 109 and the second control lever 110 are respectively activated to deflect the first impact plate 106 and the second impact plate 107 toward the crushing roller 202, thereby shortening the distance between the first impact plate 106, the second impact plate 107 and the crushing roller 202. In this way, the slag that is re-transported for secondary crushing is re-crushed at a smaller spacing (in this adjustment state, the crushing shell stops feeding).

[0052] It is worth noting that: the slag with smaller particle size will be between the crushing roller 202, the crushing hammer 203 and the first filter plate 301. As the crushing roller 202 and the crushing hammer 203 rotate, the purpose of grinding the slag with smaller particle size is achieved, which not only solves the problem of clogging of the first filter plate 301, but also transports the slag that does not meet the crushing particle size standard to the direction of the first impact plate 106 for secondary crushing, and at the same time achieves the effect of grinding the slag with smaller particle size. Secondly, when the left and right sides of the first filter plate 301 are both higher than the first and second quadrants of the crushing roller 202 and the crushing hammer 203 (please refer to the details) Figure 8 ), at this time the second compression spring 307 is in a fully compressed state.

[0053] Since the surface of the first filter plate 301 fits the outer contour of the bottom of the crushing roller 202 and the crushing hammer 203, the slag after secondary crushing and grinding will enter the surface of the second filter plate 304 and be screened by the second filter plate 304. After the secondary crushing of the slag blocked on the first filter plate 301 is completed, the first control unit 302 is started to move the first filter plate 301 downward and return to its initial position.

[0054] If the second flow detection unit still detects that the discharge volume is lower than the normal discharge threshold, it means that the slag after secondary crushing and grinding will be directly discharged to the surface of the second filter plate 304, and the slag will be congested on the surface of the second filter plate 304, resulting in the discharge volume still being lower than the normal discharge threshold. At this time, the first control unit 302 is turned on to push the first filter plate 301 toward the crushing roller 202 and the crushing hammer 203, so that the surface of the first filter plate 301 contacts the lower outer contours of the crushing roller 202 and the crushing hammer 203, and at this time the left and right sides of the first filter plate 301 are located in the third and fourth quadrants of the crushing roller 202 and the crushing hammer 203 (please refer to the detailed status for details). Figure 9 ), and then controls the second control unit 305 to push the second filter plate 304 to move in the direction of the first filter plate 301 and stop below the first filter plate 301. Then, the crushing roller 202 and the crushing hammer 203 will continuously generate a high-frequency extrusion force on the surface of the first filter plate 301 during the transmission process, which will cause the first filter plate 301 to achieve a high-frequency up and down reciprocating motion under the action of the second compression spring 307. Since the second filter plate 304 is below the first filter plate 301, the up and down reciprocating motion of the first filter plate 301 can be used to crush the slag particles blocked on the second filter plate 304, thereby alleviating the blockage of the slag on the second filter plate 304. At the same time, the two second control units 305 are controlled to keep different elongation lengths, so that the second filter plate 304 can be tilted in any direction. Then, the vibration generated by the impact of the first filter plate 301 on the surface of the second filter plate 304 is combined with the vibration generated by the impact of the first filter plate 301 on the surface of the second filter plate 304, so that the crushed slag on the surface of the second filter plate 304 can be discharged toward the discharge port 112.

[0055] It is worth noting that when the first filter plate 301 contacts the crushing hammer 203 and the crushing roller 202 (see Figure 9 ), in this state, the second compression spring 307 is in a semi-compressed state, so the first filter plate 301 is made to reciprocate up and down in cooperation with the crushing roller 202 and the crushing hammer 203, thereby achieving the effect of high-frequency crushing of the slag on the second filter plate 304.

[0056] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A high-efficiency crushing device for waste incineration slag, comprising a housing assembly (1), wherein the housing assembly (1) is provided with a crushing assembly (2), and a screening unit (3) is provided near the bottom of the housing assembly (1) near the crushing assembly (2), characterized in that: The crushing assembly (2) comprises a crushing roller (202), the crushing roller (202) is located inside the crushing assembly (2), a surface of the crushing roller (202) is provided with a plurality of crushing hammers (203) for crushing slag, and the plurality of crushing hammers (203) are distributed in an array along the outer circumference of the crushing roller (202); The housing assembly (1) comprises a crushing housing (101), wherein a first impact plate (106) and a second impact plate (107) are hingedly provided inside the crushing housing (101), and the second impact plate (107) is located below the same side as the first impact plate (106), and the second impact plate is used to receive slag crushed by the first impact plate; The outer surface of the crushing shell (101) is connected to a feed port (103), and the inner wall of the feed port (103) is provided with a first guide plate (102), and the first guide plate (102) is used to guide the slag toward the first impact plate (107). The bottom of the first guide plate (102) is provided with a first flow detection unit, and the first flow detection unit is used to detect the feed amount data of the feed port (103).

2. The high-efficiency crushing device for waste incineration slag according to claim 1, characterized in that: The screening unit (3) comprises a first filter plate (301) and a second filter plate (304), wherein the second filter plate (304) is located below the first filter plate (301), and the second filter plate (304) can cover the area of ​​the first filter plate (301), and the bottom of the first filter plate (301) is hingedly provided with a first control unit (302), and the bottom of the first control unit (302) is provided with a movable plate (306), and the movable plate (306) can move axially along the first control unit (302). A second compression spring (307) is provided at the bottom of the movable plate (306), and the second compression spring (307) is located on the inner bottom wall of the crushing shell (101). A second control unit (305) is provided at the bottom of the second filter plate (304). A placement rack is provided at the bottom of the second control unit (305). A limit frame (303) is provided on the outer side of the placement rack. The length and width of the limit frame (303) are consistent with those of the second filter plate (304). The second filter plate (304) is movably connected to the inner wall of the limit frame (303).

3. The high-efficiency crushing device for waste incineration slag according to claim 1, characterized in that: The backs of the first impact plate (106) and the second impact plate (107) are hinged with a first circular tube (105) and a second circular tube (108); the outer surfaces of the first circular tube (105) and the second circular tube (108) are movable through the crushing shell (101); and the ends of the first circular tube (105) and the second circular tube (108) outside the crushing shell (101) are provided with a first control rod (109) and a second control rod (110).

4. The high-efficiency crushing device for waste incineration slag according to claim 1, characterized in that: A discharge guide plate (111) is provided at the bottom of the crushing shell (101), a bearing plate (115) is provided at the bottom of the discharge guide plate (111), a driving power supply device (209) is provided on the surface of the bearing plate (115), and an output end of the driving power supply device (209) is connected to a transmission wheel (204) via a conveyor belt (208); The interior of the transmission wheel (204) is fixedly connected to the end of the transmission shaft (201), and a stabilizing platform is movably provided on the outer surface of the transmission wheel (204) near the transmission wheel (204), a support frame (207) is provided at the bottom of the stabilizing platform, and a side wall of the support frame (207) is arranged on the outer surface of the crushing shell (101), and the stabilizing platform cooperates with the support frame (207) to reinforce and limit the transmission shaft (201).

5. The high-efficiency crushing device for waste incineration slag according to claim 4, characterized in that: A plurality of buffer assemblies are provided above the support frame (207), and the buffer assemblies include a piston rod (205), the end of the piston rod (205) is hinged to the support frame (207), and the end of the piston rod (205) away from the support frame (207) is hinged to the outer surface of the crushing shell (101) through a fixing member (206). The plurality of buffer assemblies are used to absorb vibrations generated by the crushing shell (101) during the crushing process.

6. The high-efficiency crushing device for waste incineration slag according to claim 5, characterized in that: A discharge port is provided on the surface of the load-bearing plate (115), the load-bearing plate (115) is communicated with the interior of the crushing shell (101) through the discharge port, and a discharge port (112) is provided at the bottom of the load-bearing plate (115), the discharge port (112) and the discharge port are communicated with each other, and a plurality of support rods (114) are provided at the bottom of the load-bearing plate (115), and each support rod (114) is used to support the bottom of the load-bearing plate; A second guide plate (113) is provided on the inner wall of the discharge port (112), and a second flow detection unit is provided on the back of the second guide plate (113). The second flow detection unit is used to monitor the discharge amount of the crushed slag in real time, and the second guide plate (113) is used to guide the crushed slag.

7. The high-efficiency crushing device for waste incineration slag according to claim 1, characterized in that: The outer surface of the crushing roller (202) is provided with a plurality of slots, and the plurality of slots are used to discharge the crushed slag in the direction of the first filter plate (301); a feed trough is provided between two adjacent crushing hammers (203), and the number of the feed troughs is set to be multiple, and each feed trough is distributed in a circular array on the outer circumferential surface of the crushing roller (202); the feed trough is used to transport the slag into the crushing area.

8. The high-efficiency crushing device for waste incineration slag according to claim 2, characterized in that: When the first filter plate (301) is in the first working state, the first control unit (302) is in a fully extended state, the surface of the first filter plate (301) is in contact with the bottom surfaces of the crushing roller (202) and the crushing hammer (203), the first filter plate (301) is bent downward along the outer contours of the crushing roller (202) and the crushing hammer (203), and the second compression spring (307) is in a fully compressed state; When the first filter plate (301) is in the second working state, the first control unit (302) is in a semi-extended state, the middle area of ​​the first filter plate (301) contacts the lower contours of the crushing roller (202) and the crushing hammer (203), the middle area of ​​the first filter plate (301) is slightly bent along the outer contours of the crushing roller (202) and the crushing hammer (203), and the second compression spring (307) is in a semi-compressed state.

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