A high-efficiency crushing device for waste incineration slag

Abstract

The present application relates to the technical field of slag processing, and discloses a high-efficiency crushing device for waste incineration slag, which comprises a shell assembly, the shell assembly is provided with a crushing assembly, and the bottom of the shell assembly close to the crushing assembly is provided with a screening unit, the crushing assembly comprises a crushing roller, the surface of the crushing roller is provided with a plurality of crushing hammers for crushing the slag, and the plurality of crushing hammers are distributed in an array along the outer circumference of the crushing roller, the crushing hammers distributed in an array along the outer circumference of the crushing roller are matched with the first and second angle-adjustable counterattack plates, so that the slag can be efficiently crushed in the process of rotating impact and rebound crushing, the slag is guided into the screening unit through the surface groove holes of the crushing roller and the material conveying groove, and the classification and screening design of the first and second filter plates can accurately control the particle size of the slag, solve the problem of uneven particle size of the traditional crushing device, and improve the crushing efficiency and screening accuracy.

Description

Technical Field

[0001] This invention relates to the field of slag processing technology, and in particular to a high-efficiency crushing device for waste incineration slag. Background Technology

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

[0003] Chinese patent application number CN202410615762.6 discloses a slag roller crushing device, including a processing box. A crushing component is arranged inside the processing box. The crushing component includes a drive shaft rotatably connected to the processing box. A pressure roller is fixedly connected to the outer surface of the drive shaft. An extrusion block is fixedly connected to the outer surface of the pressure roller. A feeding hopper for adding slag is arranged on the upper side of the processing box. A support plate is fixedly connected to the inner surface of the feeding hopper. A turning component is arranged on the lower side of the support plate. The turning component includes a support pipe fixedly connected to the lower outer surface of the support plate. A mounting base is fixedly connected to the lower end of the support pipe. A hinge is arranged on the outer surface of the mounting base. A support component is connected to the mounting base.

[0004] According to the aforementioned existing technology, it has been found that during the slag crushing process, the mismatch between the feed rate and the discharge rate can cause the slag entering the crushing zone to accumulate together, resulting in slag blockage in the crushing zone and thus reducing crushing efficiency.

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

[0006] The purpose of this invention is to provide a high-efficiency crushing device for waste incineration slag to solve the problems mentioned in the background art.

[0007] To achieve the above objectives, the present invention provides the following technical solution: a high-efficiency crushing device for waste incineration slag, comprising an outer shell assembly, wherein the outer shell assembly is provided with a crushing assembly, and a screening unit is provided near the bottom of the crushing assembly. The crushing assembly includes a crushing roller, which is located inside the crushing assembly. The surface of the crushing roller is provided with a plurality of crushing hammers for crushing the slag, and the plurality of crushing hammers are distributed in a circular array along the outer circumference of the crushing roller.

[0008] The outer shell assembly includes a crushing shell, and a first impact plate and a second impact plate are hinged inside the crushing shell. The second impact plate is located on the same side and below the first impact plate. The second impact plate is used to receive the slag after being crushed by the first impact plate.

[0009] The outer surface of the crushing shell is connected to a feed inlet, and the inner wall of the feed inlet is provided with a first guide plate. The first guide plate is used to guide the slag towards 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 inlet.

[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 can cover the area of ​​the first filter plate. A first control unit is hinged to the bottom of the first filter plate. A movable plate is provided at the bottom of the first control unit. The movable plate can move axially along the first control unit. A second compression spring is provided at the bottom of the movable plate and is located on the inner bottom wall of the crushing shell. A second control unit is provided at the bottom of the second filter plate. A placement frame is provided at the bottom of the second control unit. A limiting frame is provided on the outer side of the placement frame. The length and width of the limiting frame are the same as those of the second filter plate. The second filter plate is movably connected to the inner wall of the limiting frame.

[0011] Preferably, the back of the first impact plate and the second impact plate are hinged with a first round tube and a second round tube, the outer surfaces of the first round tube and the second round tube movably penetrate the crushing shell, and the ends of the first round tube and the second round tube located outside the crushing shell are provided with a first control rod and a second control rod.

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

[0013] The inside of the transmission wheel is fixedly connected to the end of the transmission shaft, and a stabilizing platform is movably provided on the outer surface of the transmission shaft near the transmission wheel. A support frame is provided at the bottom of the stabilizing platform, and the side wall of the support frame is provided on the outer surface of the broken shell. The stabilizing platform, together with the support frame, is used to reinforce and limit the transmission shaft.

[0014] Preferably, a plurality of buffer components are provided above the support frame. Each buffer component includes a piston rod, the end of which is hinged to the support frame. 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. The plurality of buffer components are used to absorb the vibration generated by the crushing shell during the crushing process.

[0015] Preferably, the surface of the load-bearing plate is provided with a discharge port, the load-bearing plate is connected to the interior of the crushing shell through the discharge port, and the bottom of the load-bearing plate is provided with a discharge port, the discharge ports are connected to each other, and the bottom of the load-bearing plate is provided with multiple support rods, each of the support rods being used to support the bottom of the load-bearing plate.

[0016] The inner wall of the discharge port is provided with a second guide plate, and the back of the second guide plate is provided with a second flow detection unit. The second flow detection unit is used to monitor the discharge amount of 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 multiple slots, and the multiple slots are used to discharge the crushed slag towards the first filter plate. A conveying trough is provided between two adjacent crushing hammers, and the number of conveying troughs is set to multiple, and each conveying trough is distributed in a circumferential array on the outer circumferential surface of the crushing roller. The conveying trough is used to temporarily transport slag into the crushing area.

[0018] Preferably, when the first filter plate is in the first working state, the first control unit is fully extended, the surface of the first filter plate is in contact with the bottom surfaces of the crushing roller and the crushing hammer, the first filter plate is bent downward along the outer contour 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 region of the first filter plate is in contact with the lower contour of the crushing roller and the crushing hammer, the middle region of the first filter plate is slightly bent along the outer contour of the crushing roller and the crushing hammer, and the second compression spring is in a semi-compressed state.

[0020] The technical effects and advantages of this invention are as follows:

[0021] 1. This invention utilizes a circumferential array of crushing hammers on the outer side of the crushing roller, combined with an angle-adjustable first and second impact plates, to achieve efficient pulverization of slag through rotational impact and rebound crushing. Grooves on the surface of the crushing roller and the conveying trough guide the slag into the screening unit. The grading and screening design of the first and second filter plates allows for precise control of slag particle size, solving the problem of uneven particle size in traditional crushing devices and improving crushing efficiency and screening accuracy.

[0022] 2. In this invention, by setting up a screening unit, the first filter plate can switch between two working states through the first control unit. In the first state, the filter plate is bent to conform to the bottom contour of the crusher, and the crushing roller is used to scrape the blockage slag into the crushing zone for secondary crushing. In the second state, the filter plate reciprocates at high frequency, working with the second filter plate to crush and screen the slag, effectively solving the problem of filter plate clogging. The buffer component absorbs crushing vibration through the piston rod to prevent the equipment from being damaged by resonance. The first and second flow detection units monitor the feed and discharge in real time and adjust the angle of the impact plate in conjunction with the flow to achieve slag diversion and crushing, prevent feed congestion, ensure stable operation of the device, and extend its service life. Attached Figure Description

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

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

[0025] Figure 3 This is a front view of the overall open structure of the present invention;

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

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

[0028] Figure 6 for Figure 5 Enlarged structural diagram at point A in the middle;

[0029] Figure 7 This is a schematic 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 in the first working state of the present invention;

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

[0032] In the diagram: 1. Outer shell assembly; 101. Crushing outer shell; 102. First guide plate; 103. Feed inlet; 104. Support component; 105. First circular tube; 106. First impact plate; 107. Second impact plate; 108. Second circular tube; 109. First control lever; 110. Second control lever; 111. Discharge guide plate; 112. Discharge port; 113. Second guide plate; 114. Support rod; 115. Load-bearing plate; 2. Crushing group Components; 201, drive shaft; 202, crushing roller; 203, breaker hammer; 204, drive wheel; 205, piston rod; 206, fixing component; 207, support frame; 208, conveyor belt; 209, drive power supply equipment; 3, screening unit; 301, first filter plate; 302, first control unit; 303, limiting frame; 304, second filter plate; 305, second control unit; 306, movable plate; 307, second compression spring. Detailed Implementation

[0033] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative effort are within the scope of protection of the present invention.

[0034] Example 1

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

[0036] When in use, after the slag enters the shell assembly 1, the crushing component 2 inside the shell assembly 1 rotates and crushes the slag. The crushed slag particles then fall onto the surface of the screening unit 3, where the screening unit 3 screens and filters the crushed slag particles to achieve uniformity in particle size.

[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. The outer surface of the drive shaft 201 is fixed at the axis of the crushing roller 202. Multiple sets of crushing hammers 203 are fixedly provided on the outer surface of the crushing roller 202. A feeding trough is provided between two crushing hammers 203 on the crushing roller 202. The feeding trough is used to temporarily transport slag into the crushing area. The drive shaft 201 and the crushing roller 202 rotate, so that the crushing hammers 203 contact and impact 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 outer casing assembly 1 includes a crushing outer casing 101, and a feed inlet 103 is provided on the outer surface of the crushing outer casing 101. The feed inlet 103 is located at the upper left of the crushing outer casing 101. A first guide plate 102 is fixedly provided inside the feed inlet 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 outer casing 101. In use, the slag to be crushed is transported to the feed inlet 103 and enters the crushing outer casing 101 through the feed inlet 103 for crushing. During the process, the tilt angle of the first guide plate 102 is used to guide the slag particles, so that the slag directly enters the crushing area for crushing.

[0039] like Figure 2 As shown, the outer surface of the crushing shell 101 is provided with a support frame 207 and a fixing member 206. The surface of the support frame 207 is provided with a stabilizing platform, and the interior of the stabilizing platform is rotatably connected to the outer surface of the transmission shaft 201. Both ends of the transmission shaft 201 penetrate the crushing shell 101, and both ends of the transmission shaft 201 are fixedly provided with transmission wheels 204. The stabilizing platform is used to limit the transmission shaft 201 to prevent the transmission wheels 204 from becoming eccentric and causing damage during the crushing process. The outer surface of the transmission wheels 204 is fitted with a conveyor belt 208, and the other end of the conveyor belt 208 is connected to the drive power supply device 209. The bottom of the drive power supply device 209 is fixedly set on the surface of the load-bearing plate 115, and the drive power supply device 209 is used in conjunction with the conveyor belt 208 to achieve the crushing effect of slag particles. The drive power supply device 209 can be a rotary drive device such as an electric motor or a brushless motor.

[0040] In operation, the slag to be crushed is first conveyed into the crushing shell 101 through the feed inlet 103. Guided by the first guide plate 102, the slag inside the crushing shell 101 moves towards the first impact plate 106 and contacts its surface, placing it in the crushing zone. Then, the drive power supply 209 is turned on, and the conveyor belt 208 drives the transmission wheel 204, causing the transmission shaft 201 to rotate the crushing roller 202 and the crushing hammer 203. The crushing is then transmitted through the crushing hammer 203 and the crushing roller 202. The rotation of the slag causes it to be thrown towards the first impact plate 106 under the influence of centrifugal force. After colliding with the surface of the first impact plate 106, the slag bounces back onto the surface of the breaker hammer 203. Since the breaker hammer 203 is always rotating, the bounced slag will collide with the breaker hammer 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 and enter the secondary crushing area, where it will be crushed in conjunction with the crushing roller 202 and the breaker hammer 203 (the crushing process is the same as that of the first impact plate 106, and will not be described in detail here).

[0041] like Figure 2 As shown, a buffer assembly is hinged to 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 crushed 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 via 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 arranged 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 between the second control unit 305 and the second filter plate 304, and the second hinge is used for the second control... The control unit 305 is hinged to the second filter plate 304. The second filter plate 304 is used to perform secondary screening of the crushed slag. The crushed slag first falls onto the first filter plate 301. The first control unit 302, which is hinged to 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 screening and improve screening efficiency. Slag that meets the screen hole size of the first filter plate 301 falls through the screen hole and remains on the filter plate. After the initial screening, the slag reaches the second filter plate 304. Then, under the action of the second control unit 305, the second filter plate 304 performs secondary screening of the slag to further screen out the slag that meets the requirements.

[0043] It is worth noting that there are multiple first control units 302 and second control units 305. Each first control unit 302 and second control unit 305 is symmetrically distributed on the left and right sides of the first filter plate 301 and the second filter plate 304. The first control unit 302 and second control unit 305 can be electric actuators, hydraulic actuators or other linear drive devices.

[0044] like Figure 3 and 5As shown, the bottom of the crushing shell 101 is provided with a discharge guide plate 111, and a load-bearing plate 115 is fixedly provided at the bottom of the discharge guide plate 111. The surface of the load-bearing plate 115 has a discharge port, and a limiting frame 303 is fixedly provided on the inner wall of the discharge port. The bottom of the load-bearing plate 115 is provided with a discharge port 112, which is used to receive the crushed slag particles inside the crushing shell 101 and discharge them to the outside. The discharge port 112 is connected to both the load-bearing plate 115 and the crushing shell 101. The inner wall of the discharge port 112 is provided with a second guide plate 113, which is used to guide the crushed slag to avoid splashing due to the high discharge speed. A second flow detector is provided on the back of the second guide plate 113. The unit uses a second flow detection unit to detect the discharge volume. The bottom of the load-bearing plate 115 is provided with support rods 114, and the number of support rods 114 is set to be multiple. The load-bearing plate 115 provides support for the crushing shell 101 through the support rods 114, so as to avoid the crushing shell 101 from tilting or other accidents caused by the vibration generated during the crushing process. After two-stage screening, the qualified slag enters the discharge port 112 through the discharge guide plate 111 and the discharge port. 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. 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. 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 interior of the crushing shell 101. A first circular tube 105 is hinged to the other side of the first impact plate 106, and a second compression spring 307 is provided at the end of the first circular tube 105 away from the first impact plate 106. A first control rod 109 is fixedly installed inside the first circular tube 105, and one end of the first control rod 109 away from the first circular tube 105 is fixedly installed 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. The back of the second impact plate 107 is hinged. A second circular tube 108 is provided, 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 other end of the second control rod 110 away from the second circular tube 108 is fixedly provided on the outside of the crushing shell 101. A support member 104 is provided on the side of the surface of the crushing shell 101 near the first control rod 109. There are multiple support members 104, and the support members 104 are respectively fixedly provided at the ends of the first control rod 109 and the second control rod 110. The support member 104 provides support force for the first control rod 109 and the second control rod 110. The first control rod 109, in conjunction with the first circular tube 105, drives the first impact plate 106 to deflect at an angle, thereby reducing the distance between the first impact plate 106 and the crushing roller 202 and the crushing hammer 203, so as to achieve 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 breaker hammer 203. The pressure sensor monitors the slag blockage between the first impact plate 106 and the crushing roller 202 in real time during the feeding process. When the feeding rate is higher than the crushing rate at this time, a large number 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 breaker hammer 203 will also have a strong impact on the surface of the first impact plate 106 and exert high pressure on the first impact plate 106 during the crushing of slag. The pressure sensor only needs to detect the constant pressure value after each impact on the first impact plate 106 to reflect the slag blockage). This indicates that the slag particles are in a blockage 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 their angles are 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 rate is normal, but the second flow detection unit detects that the output rate is lower than the normal threshold, it is necessary to further determine whether there is a blockage. If it detects that the surface pressure value of the first impact plate 106 exceeds the threshold, it means that the feed rate is higher than the crushing rate, and a large amount of slag accumulates and blocks 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 causing the first impact plate 106 to deflect and increasing the distance between the first impact plate 106 and the crushing roller 202, allowing some slag to enter the area between the second impact plate 107 and the crushing roller 202. At the same time, the second control lever 110 drives the second impact plate 107 to reduce the distance between it and the crushing roller 202. In this way, during the process of diverting slag, it can effectively prevent uncrushed slag from falling onto the surfaces of the first filter plate 301 and the second filter plate 304 and causing blockage, thereby achieving the effect of diverting and crushing, and avoiding the problem of slag being blocked in the crushing area of ​​the first impact plate 106 for a long time, which would reduce the crushing efficiency.

[0048] It is worth noting that the first control lever 109 and the second control lever 110 are specifically linear drive devices, such as hydraulic push rods or electric push rods. The first control lever 109 and the second control lever 110 apply pressure to the first counterattack plate 106 and one side of the first counterattack plate 106 respectively, so as to achieve the purpose of angular deflection of the first counterattack plate 106 and the second counterattack plate 107.

[0049] Example 2

[0050] Although the first control lever 109 and the second control lever 110 are used to control the angle deflection of the first impact plate 106 and the second impact plate 107 respectively, the slag originally congested 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 and alleviating the situation where a large amount of slag congested in the first impact plate 106, resulting in a decrease in crushing efficiency and an imbalance between the rate of discharge and the rate of feed, the diversion will cause uneven particle size of the crushed slag. Therefore, slag with larger particle size will fall onto the surface of the first filter plate 301 and cannot pass through the screen holes on the first filter plate 301, thus preventing slag of normal particle size from passing through the first filter plate 301, causing a clogging problem on the first filter plate 301. Based on this, this solution proposes Embodiment 2, and the specific adjustment steps are as follows:

[0051] The feed rate and discharge rate are detected by the first flow detection unit and the second flow detection unit, respectively. If the discharge rate is still lower than the normal threshold after flow diversion adjustment, the first control unit 302 is activated to drive the first filter plate 301 to move up and down frequently. With the up and down movement of the first filter plate 301, the slag clogging its surface is vibrated and screened. During this process, the discharge rate is continuously observed. If the discharge rate recovers, but is still lower than the normal discharge threshold, it is determined that there is a large amount of slag of different particle sizes on the surface of the first filter plate 301, causing the slag of the normal particle size to be unable to pass through the first filter plate 301, thus accumulating on the surface of the first filter plate 301. Then, the first control unit 302 is activated and the first filter plate 301 is moved towards the crushing roller 202, so that the surface of the first filter plate 301 comes into contact with the crushing roller 202 and the crushing hammer 203. Then, the first control unit 302 continues 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 (see details). Figure 8 The first filter plate 301 is positioned so that its left and right sides are higher than the third and fourth quadrants of the crushing roller 202 and the crushing hammer 203. As the crushing roller 202 and the crushing hammer 203 rotate, the slag particles on the first filter plate 301 that cannot pass through the screen holes are scraped into the conveying trough and conveyed along the axis of rotation towards 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, the slag in the conveying process will not fall to the bottom again. Then, the first control lever 109 and the second control lever 110 are activated respectively to make the first impact plate 106 and the second impact plate 107 deflect towards 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-conveyed for secondary crushing is crushed again at a smaller distance (in this adjustment state, the crushing shell stops feeding).

[0052] It is worth noting that smaller slag particles are positioned between the crushing roller 202, the breaker hammer 203, and the first filter plate 301. The rotation of the crushing roller 202 and the breaker hammer 203 achieves the purpose of grinding the smaller slag particles. This not only solves the clogging problem of the first filter plate 301 but also conveys slag that does not meet the crushing particle size standard towards the first impact plate 106 for secondary crushing. Simultaneously, it grinds the smaller slag particles. Furthermore, when both sides of the first filter plate 301 are higher than the first and second quadrants of the crushing roller 202 and the breaker hammer 203 (see 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 is in close contact with the bottom outer contour of the crushing roller 202 and the breaker 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 blocking the first filter plate 301 is completed, the first control unit 302 is activated to make the first filter plate 301 move downward and return to the initial position.

[0054] If the second flow detection unit still detects that the discharge rate is lower than the normal discharge threshold, it indicates that the slag after secondary crushing and grinding will be directly discharged onto the surface of the second filter plate 304, and the slag will cause blockage on the surface of the second filter plate 304, resulting in the discharge rate still being lower than the normal discharge threshold. At this time, the first control unit 302 is activated to push the first filter plate 301 towards the crushing roller 202 and the crushing hammer 203, so that the surface of the first filter plate 301 contacts the lower outer contour of the crushing roller 202 and the crushing hammer 203. 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 (see the specific state for details). Figure 9 Then, the second control unit 305 pushes the second filter plate 304 towards the first filter plate 301 and stops below the first filter plate 301. Subsequently, the crushing roller 202 and the crushing hammer 203 continuously generate high-frequency extrusion force on the surface of the first filter plate 301 during the transmission process. This causes the first filter plate 301 to achieve 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 blocking the second filter plate 304, thereby relieving the slag blockage on the second filter plate 304. At the same time, the two second control units 305 are controlled to keep the extension lengths different, so that the second filter plate 304 can be tilted in any direction. Then, in conjunction with the vibration generated by the impact of the first filter plate 301 on the surface of the second filter plate 304, the crushed slag on the surface of the second filter plate 304 can be discharged towards the discharge port 112.

[0055] It is worth noting that: when the first filter plate 301 is in contact with the breaker hammer 203 and the breaker roller 202 (see [link to relevant documentation]). Figure 9 In this state, the second compression spring 307 is in a semi-compressed state, so in conjunction with the crushing roller 202 and the crushing hammer 203, the first filter plate 301 moves up and down reciprocally, so as to achieve the effect of high-frequency crushing of the slag on the second filter plate 304.

[0056] Finally, it should be noted that the above description 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 foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A high-efficiency crushing device for waste incinerator slag, comprising a shell assembly, wherein the shell assembly is provided with a crushing component, and a screening unit is provided near the bottom of the crushing component, characterized in that: The crushing assembly includes a crushing roller located inside the crushing assembly. The surface of the crushing roller is provided with a plurality of crushing hammers for crushing slag, and the plurality of crushing hammers are distributed in an array along the outer circumference of the crushing roller. The outer shell assembly includes a crushing shell, and a first impact plate and a second impact plate are hinged inside the crushing shell. The second impact plate is located on the same side and below the first impact plate. The second impact plate is used to receive the slag after being crushed by the first impact plate. The outer surface of the crushing shell is connected to a feed inlet, and the inner wall of the feed inlet is provided with a first guide plate. The first guide plate is used to guide the slag towards 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 inlet. 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 can cover the area of ​​the first filter plate. A first control unit is hinged to the bottom of the first filter plate. A movable plate is provided at the bottom of the first control unit. The movable plate can move axially along the first control unit. A second compression spring is provided at the bottom of the movable plate and is located on the inner bottom wall of the crushing shell. A second control unit is provided at the bottom of the second filter plate. A placement frame is provided at the bottom of the second control unit. A limiting frame is provided on the outside of the placement frame. The length and width of the limiting frame are the same as those of the second filter plate. The second filter plate is movably connected to the inner wall of the limiting frame. When the first filter plate is in the first working state, the first control unit is fully extended, the surface of the first filter plate is in contact with the bottom surfaces of the crushing roller and the crushing hammer, the first filter plate is bent downward along the outer contour of the crushing roller and the crushing hammer, and the second compression spring is in a fully compressed state. When the first filter plate is in the second working state, the first control unit is in a semi-extended state, the middle region of the first filter plate is in contact with the lower contour of the crushing roller and the crushing hammer, the middle region of the first filter plate is slightly bent along the outer contour of the crushing roller and the crushing hammer, and the second compression spring is in a semi-compressed state.

2. The high-efficiency crushing device for waste incinerator slag according to claim 1, characterized in that: The back of the first impact plate and the second impact plate are hinged with a first round tube and a second round tube, the outer surfaces of the first round tube and the second round tube movably penetrate the crushing shell, and the ends of the first round tube and the second round tube located outside the crushing shell are provided with a first control rod and a second control rod.

3. The high-efficiency crushing device for waste incineration slag according to claim 2, characterized in that: The bottom of the crushing shell is provided with a discharge guide plate, the bottom of the discharge guide plate is provided with a load-bearing plate, and the surface of the load-bearing plate is provided with a drive power supply device, and the output end of the drive power supply device is connected to the transmission wheel through a conveyor belt. The inside of the transmission wheel is fixedly connected to the end of the transmission shaft, and a stabilizing platform is movably provided on the outer surface of the transmission shaft near the transmission wheel. A support frame is provided at the bottom of the stabilizing platform, and the side wall of the support frame is provided on the outer surface of the broken shell. The stabilizing platform, together with the support frame, is used to reinforce and limit the transmission shaft.

4. The high-efficiency crushing device for waste incineration slag according to claim 3, characterized in that: The support frame is provided with multiple buffer components above it. Each buffer component includes a piston rod, the end of which is hinged to the support frame. 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. The multiple buffer components are used to absorb the vibration generated by the crushing shell during the crushing process.

5. The high-efficiency crushing device for waste incineration slag according to claim 4, characterized in that: The surface of the load-bearing plate is provided with a discharge port, which is connected to the interior of the crushing shell through the discharge port. The bottom of the load-bearing plate is provided with a discharge port, which is connected to the discharge port on the surface of the load-bearing plate. The bottom of the load-bearing plate is provided with multiple support rods, and each support rod is used to support the bottom of the load-bearing plate. The inner wall of the discharge port is provided with a second guide plate, and the back of the second guide plate is provided with a second flow detection unit. The second flow detection unit is used to monitor the discharge amount of crushed slag in real time, and the second guide plate is used to guide the crushed slag.

6. The high-efficiency crushing device for waste incinerator slag according to claim 1, characterized in that: The outer surface of the crushing roller is provided with multiple slots, which are used to discharge the crushed slag towards the first filter plate. A conveying trough is provided between two adjacent crushing hammers, and the number of conveying troughs is set to multiple, and each conveying trough is distributed in a circumferential array on the outer circumferential surface of the crushing roller. The conveying trough is used to transport slag into the crushing area.

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