Waste tire circulating equipment and application thereof in solid waste material permeable asphalt pavement

Abstract

The invention belongs to the technical field of waste tires, and particularly relates to waste tire circulating equipment and application in a solid waste material permeable asphalt pavement, the waste tire circulating equipment comprises a carrier assembly, a material homogenizing assembly is connected to the carrier assembly, two grinding assemblies are arranged in the carrier assembly, and air blowing assemblies are arranged on the two grinding assemblies; the carrier assembly comprises a box body; the material uniformizing assembly comprises a feeding bin. The grinding assembly comprises a plurality of electric push rods, the input ends of the electric push rods are fixedly connected with the box body, the output ends of the electric push rods are connected with a movable plate, two fixing seats are arranged on the movable plate, a transmission shaft is rotationally connected between the two fixing seats, and the transmission shaft is sleeved with a grinding roller; according to the waste tire circulating equipment, the grinding strength of rubber blocks of different sizes can be adjusted in a self-adaptive mode, the pulse wind power is adjusted in a self-adaptive mode, waste of rubber powder at low temperature is avoided, and the cleaning effect on the rubber powder attached to the grinding roller at high temperature is enhanced.

Description

Technical Field

[0001] The invention belongs to the technical field of waste tires, in particular to waste tire recycling equipment and application thereof in a water-permeable asphalt pavement made of solid waste materials. Background Art

[0002] With the rapid development of the automobile industry, the number of waste tires is also increasing dramatically. Grinding waste tires into rubber powder and adding it to the base asphalt is a waste tire treatment and resource recycling method with environmental, economic and technical advantages. It can effectively reduce the pollution of waste tires to the environment, while improving the performance of asphalt pavement and improving driving safety and comfort.

[0003] A Chinese patent with application number CN202210185973.1 discloses a crushing and mixing device for recycling waste tires, including a fixing mechanism and a feeding mechanism, wherein a crushing mechanism is installed on the upper inner side of the fixing mechanism, and a crushing mechanism is arranged in the middle inner side of the fixing mechanism, the feeding mechanism is fixed to the bottom of the crushing mechanism, and a lifting mechanism is arranged on the outer side of the feeding mechanism; the crushing and mixing device has poor crushing effect and low crushing efficiency.

[0004] During the recycling process of waste tires, part of the rubber powder will adhere to the grinding roller after the tire rubber block is squeezed and ground, reducing the effective contact area between the grinding roller and the tire rubber block. If it is not cleaned in time, it will easily affect the grinding efficiency of the grinding roller.

[0005] When the rubber powder is filtered with the help of a sieve for a long time, the filter holes inside the sieve are prone to clogging, thereby reducing the passing rate of the rubber powder and affecting production continuity.

[0006] At the same time, when the tire rubber blocks accumulated on the grinding roller are large and in large number, the strength of the grinding roller needs to be adjusted in time. However, the circulation equipment in the prior art lacks the ability to adaptively adjust the grinding force of the tire rubber blocks, resulting in insufficient grinding when the tire rubber blocks are large and accumulated in large numbers.

[0007] Moreover, when the grinding force of the grinding roller is large, the friction between the grinding roller and the tire rubber block will increase significantly, causing the temperature between the grinding roller and the tire rubber block to rise, the viscosity of the rubber powder to increase and stick together, and it is easier to adhere to the grinding roller, resulting in uneven production quality of the rubber powder and further reducing the grinding efficiency of subsequent tire rubber blocks. Summary of the invention

[0008] In view of the above problems, the present invention provides a waste tire recycling device and its application in a solid waste material permeable asphalt pavement to solve the problems raised in the above background technology.

[0009] To achieve the above object, the present invention provides the following technical solution: a waste tire recycling device, comprising a carrier assembly, a material distribution assembly connected to the carrier assembly, two groups of grinding assemblies are arranged inside the carrier assembly, and both groups of grinding assemblies are provided with air blast assemblies; The carrier assembly includes a box body; The material distribution component includes a feeding bin; The grinding assembly includes a plurality of electric push rods, the input ends of the plurality of electric push rods are fixedly connected to the box body, and the output ends are connected to a displacement plate, the displacement plate is provided with two fixed seats, a transmission shaft is rotatably connected between the two fixed seats, a grinding roller is sleeved on the transmission shaft, and a plurality of grooves are provided on the grinding roller in a circular array, and a convex block is provided between adjacent grooves; The air blowing assembly comprises a fixing plate, side walls on both sides of the fixing plate are fixedly connected to the box body, one end of the fixing plate away from the grinding assembly is fixedly connected to a cylindrical part, and a vent hole is opened on the cylindrical part.

[0010] Preferably, a material equalizing pipe is connected to the bottom of the feeding bin, and the material equalizing pipe passes through and extends to the interior of the box body. A material equalizing leaf is provided inside the material equalizing pipe, and a connecting rod is connected to the interior of the material equalizing leaf. One end of the connecting rod is fixedly connected to the material equalizing pipe, and the other end passes through the material equalizing pipe and is connected to a rotating motor.

[0011] Preferably, the box body further comprises a central control module, and the central control module is connected to the box body. A plurality of columns are arranged on the box body, and a plurality of reinforcing rods are connected between adjacent columns.

[0012] Preferably, a bearing plate is provided at one end of the displacement plate away from the fixing seat, and one end of the bearing plate away from the grinding roller is fixedly connected to the box body.

[0013] Preferably, a working chamber and a discharging chamber are provided inside the box body, a screen is connected between the working chamber and the discharging chamber, the screen is arranged in an inclined shape and is fixedly connected to the inner wall of the box body, a plurality of linkage rods are arranged on the screen, the linkage rods penetrate the bearing plate, a docking groove is provided on the linkage rod, and a splicing rod is slidably connected inside the docking groove; Preferably, a recovery port is provided on the side wall of the box body close to the rotating motor, and the inner bottom of the recovery port conflicts with the screen. A discharge port is provided on the side wall of the box body away from the rotating motor, and the inner top of the discharge port conflicts with the screen.

[0014] Preferably, the fixed plate is evenly provided with a plurality of docking holes, a movable plate is sealingly and slidably connected inside the fixed plate, the movable plate is fixedly connected to the splicing rod, the side walls on both sides of the movable plate are in contact with the box body, a return spring is connected between the fixed plate and the movable plate, a plurality of connecting holes are evenly provided on the movable plate, the space enclosed between the fixed plate and the movable plate forms an air blowing chamber, and air permeable membranes are provided inside the docking holes and the connecting holes.

[0015] Preferably, both ends of the cylindrical portion pass through the box body respectively, one end of the cylindrical portion is provided with a filter, and the other end is connected to an air pump.

[0016] An application of the above waste tire recycling equipment in a permeable asphalt pavement comprises the following steps: S1. After the waste tire rubber blocks to be processed are put into the feeding bin, the rubber blocks with smaller sizes fall directly onto the grinding rollers through the gap between the material balancing blades and the material balancing pipe, and the grinding rollers are controlled to move away from each other; S2. The larger rubber pieces fall onto the grinding rollers under the continuous rotation of the material distribution blades, and the grinding rollers are controlled to move closer to each other; S3, the rubber block is crushed and ground into rubber powder, and the rubber powder falls into the working chamber through the gap between the two grinding rollers; S4. The rubber blocks that are not fully ground cannot pass through the screen, while the rubber powder that meets the particle size falls through the screen into the discharge chamber.

[0017] Compared with the prior art, the present invention has the following beneficial effects: 1. The present application sets up the coordination of components such as the material distribution component, the grinding component and the air blowing component. When the smaller and larger rubber blocks fall onto the grinding roller in stages, the grinding rollers are controlled to move away from or closer to each other, thereby realizing adaptive adjustment of the grinding force of rubber blocks of different sizes, correspondingly driving the change of the overlapping area of ​​the docking hole and the connecting hole, adaptively adjusting the size of the pulse wind force, avoiding the waste of rubber powder at low temperatures, enhancing the cleaning effect of the rubber powder adhered to the grinding roller at high temperatures, and at the same time realizing rapid cooling of the heat between the grinding roller and the rubber block, effectively solving the high temperature problem of the rubber powder.

[0018] 2. In the present application, by arranging the mutual cooperation of components such as movable plates, docking holes and connecting holes, the overlapping area of ​​the docking holes and the connecting holes changes continuously during the continuous grinding of the rubber block, so that the size and direction of the wind force to which the rubber powder adhering to the grooves and the protrusions are subjected continuously changes, and the rubber powder is continuously subjected to pulsed wind force, further enhancing the cleaning effect of the rubber powder adhering to the grinding roller.

[0019] 3. The present application sets up the coordination of components such as the splicing rod, the connecting rod and the movable plate. The movable plate makes periodic reciprocating motion on the fixed plate, and then the movable plate drives the connecting rod to reciprocate up and down. The bottom of the connecting rod hits the screen and drives the screen to vibrate irregularly, thereby effectively improving the vibration clearing effect inside the screen, improving the fluidity of the rubber powder, and ensuring the continuity of production. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the overall structure of the present invention from a first viewing angle; Figure 2 It is a schematic diagram of the overall structure of the present invention from a second viewing angle; Figure 3 It is a left-side internal structure schematic diagram of the present invention; Figure 4 It is a schematic diagram of the internal structure of the present invention; Figure 5 This is a schematic diagram of the internal structure of the material distribution component of the present invention; Figure 6 It is a schematic diagram of the explosion structure of the material leveling assembly of the present invention; Figure 7 It is a schematic diagram of the structure of the grinding assembly of the present invention; Figure 8 for Figure 7 The enlarged schematic diagram of point B in the middle; Fig. 9 It is a schematic diagram of the internal structure of the air blast assembly of the present invention; Fig.10 for Fig. 9 The enlarged schematic diagram at A in the middle; Fig.11 A schematic diagram of the internal structure of the present invention; Fig.12 Fig.11 The enlarged schematic diagram at C in the middle; Fig.13 It is a schematic diagram of the connection position relationship between the blast assembly and the grinding assembly of the present invention.

[0021] In the figure: 1. Carrier assembly; 101. Box; 102. Central control module; 103. Column; 104. Reinforcement rod; 105. Working chamber; 106. Discharging chamber; 107. Screen; 108. Linking rod; 109. Docking slot; 110. Splicing rod; 111. Recovery port; 112. Discharging port; 2. Material distribution assembly; 201. Feeding bin; 202. Material distribution pipe; 203. Material distribution leaf; 204. Connecting rod; 205. Rotating motor; 3. Grinding assembly; 301. Electric push rod; 302. Displacement plate; 303. Fixed seat; 304. Transmission shaft; 305. Grinding roller; 306. Loading plate; 307. Groove; 308. Bump; 4. Blowing assembly; 401. Fixed plate; 402. Cylinder; 403. Docking hole; 404. Movable plate; 405. Connecting hole; 406. Blowing chamber; 407. Return spring; 408. Vent. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0023] Embodiment 1: like Figure 1 - Figure 3 As shown, a waste tire recycling equipment includes a carrier component 1, which can provide stable support for the recycling equipment. A material leveling component 2 for uniform material feeding is connected to the carrier component 1. Two groups of grinding components 3 are arranged inside the carrier component 1. The waste tire rubber blocks to be processed are crushed and ground into fine rubber powder by the grinding components 3. Both groups of grinding components 3 are provided with air blast components 4. When the grinding components 3 are rotating, the air blast components 4 clean the rubber powder adhered to the grinding roller 305 in time.

[0024] The waste tire rubber blocks to be processed are easy to block the feeding port during the feeding operation, resulting in obstruction of feeding and affecting the uniformity of feeding. Figure 3 - Figure 6As shown, the carrier assembly 1 includes a box body 101, on which a plurality of columns 103 are provided, and between adjacent columns 103, a plurality of reinforcing rods 104 are connected. The arrangement of the columns 103 and the reinforcing rods 104 improves the structural stability of the box body 101. The box body 101 also includes a central control module 102, which is connected to the box body 101. The central control module 102 can detect and control various electrical components inside the circulation equipment. The material leveling assembly 2 includes a feeding bin 201, and a material leveling pipe 202 is connected to the bottom of the feeding bin 201. The material leveling pipe 202 passes through and extends to the inside of the box body 101. The inside of the material leveling pipe 202 is provided with a material leveling leaf 203, and the inside of the material leveling leaf 203 is connected to a connecting rod 204. One end of the connecting rod 204 is fixedly connected to the material leveling pipe 202, and the other end passes through the material leveling pipe 202 and is connected to a rotating motor 205. As shown Figure 5 As shown, when in use, the central control module 102 controls the starting of the rotating motor 205. After the rotating motor 205 is started, it drives the connecting rod 204 to rotate. The rotation of the connecting rod 204 drives the material balancing blade 203 to rotate synchronously. The rotation radius of the material balancing blade 203 is smaller than the width of the material balancing tube 202. Therefore, the smaller rubber blocks in the feeding bin 201 can fall directly onto the grinding roller 305 through the gap between the material balancing blade 203 and the material balancing tube 202, while the larger rubber blocks first fall onto the material balancing blade 203, and then fall onto the grinding roller 305 under the rotation of the material balancing blade 203. The rotation of the material balancing blade 203 can stir the rubber blocks in the feeding bin 201 to avoid blockage of the rubber blocks during material discharge.

[0025] After the rubber block is squeezed and ground, some rubber powder will adhere to the grinding roller 305, reducing the effective contact area between the grinding roller 305 and the rubber block, affecting the grinding efficiency of the grinding roller 305, and further Fig. 9 - Fig.10 , Fig.13 As shown, the air blowing assembly 4 includes a fixed plate 401, and the side walls on both sides of the fixed plate 401 are fixedly connected to the box body 101. The setting of the fixed plate 401 can ensure the fixed support effect of the air blowing assembly 4. The end of the fixed plate 401 away from the grinding assembly 3 is fixedly connected to the cylindrical portion 402, and the cylindrical portion 402 is provided with an air vent 408. The two ends of the cylindrical portion 402 respectively pass through the box body 101. One end of the cylindrical portion 402 is provided with a filter, and the other end is connected to an air pump. The air pump is started and continuously delivers air to the cylindrical portion 402. The air in the cylindrical portion 402 enters the air blowing chamber 406 through the air vent 408. When the gas in the cylindrical portion 402 and the air blowing chamber 406 exceeds its upper capacity limit, the air will be discharged through the filter.

[0026] A plurality of docking holes 403 are evenly provided on the fixed plate 401, and a movable plate 404 is sealed and slidably connected inside the fixed plate 401. A reset spring 407 is connected between the fixed plate 401 and the movable plate 404. A plurality of connecting holes 405 are evenly provided on the movable plate 404. The fixed plate 401 can be used to block the movable plate 404, thereby controlling the amount of gas discharged into the box body 101. The side walls on both sides of the movable plate 404 contact the box body 101, and the space enclosed between the fixed plate 401 and the movable plate 404 forms a blast chamber 406. A breathable film is provided inside the docking holes 403 and the connecting holes 405. The breathable film can spray the gas inside the blast chamber 406 onto the grinding roller 305, and prevent the rubber powder from entering the blast chamber 406 through the docking holes 403 and the connecting holes 405. Figure 7 - Figure 8 , two fixed seats 303 are arranged on the displacement plate 302, and a bearing plate 306 is arranged at one end of the displacement plate 302 away from the fixed seat 303, and one end of the bearing plate 306 away from the grinding roller 305 is fixedly connected to the box body 101, and the bearing plate 306 is mainly used to support the grinding assembly 3 to ensure the safety and stability of the grinding roller 305 during rotation. A transmission shaft 304 is rotatably connected between the two fixed seats 303, and a grinding roller 305 is sleeved on the transmission shaft 304. A plurality of grooves 307 are arranged in a circular array on the grinding roller 305, and protrusions 308 are arranged between adjacent grooves 307. The grooves 307 and the protrusions 308 can increase the friction between the grinding roller 305 and the rubber block, and the rubber block is crushed and ground into rubber powder when passing between the two grinding rollers 305. Fig.13 As shown, the two grinding rollers 305 rotate towards each other. In the initial state, the return spring 407 is in a compressed state, so that the movable plate 404 and the protrusion 308 are in conflict with each other. During the continuous rotation of the grinding roller 305, when the protrusion 308 passes through the movable plate 404, the movable plate 404 can clean the rubber powder adhered to the protrusion 308. At this time, the compression amount of the return spring 407 does not change, and the overlapping area of ​​the docking hole 403 and the connecting hole 405 remains unchanged; when the groove 307 passes through the movable plate 404, the return spring 407 quickly The movable plate 404 is stretched, the overlapping area of ​​the docking hole 403 and the connecting hole 405 is reduced, and the movable plate 404 quickly approaches the fixed plate 401 until it contacts the groove 307. The vibration generated during the contact process can loosen the rubber powder adhering to the groove 307, which is convenient for subsequent discharge; then, the groove 307 compresses the movable plate 404, and the movable plate 404 compresses the reset spring 407 until the movable plate 404 contacts the protrusion 308 again, the overlapping area of ​​the docking hole 403 and the connecting hole 405 is increased, and the reset spring 407 returns to the initial state. The overlapping area of ​​the docking hole 403 and the connecting hole 405 is constantly changing, so that the rubber powder adhering to the groove 307 and the protrusion 308 is continuously subjected to the pulse wind force, further enhancing the cleaning effect of the rubber powder adhering to the grinding roller 305.

[0027] When the rubber powder is filtered by the screen 107 for a long time, the filter holes inside the screen 107 are easily clogged, thereby reducing the passing rate of the rubber powder and affecting the production continuity. Figure 3 - Figure 4 As shown, a working chamber 105 and a discharging chamber 106 are provided inside the box 101. A screen 107 is connected between the working chamber 105 and the discharging chamber 106. The screen 107 is inclined and fixedly connected to the inner wall of the box 101. A recovery port 111 is provided on the side wall of the box 101 close to the rotating motor 205. The inner bottom of the recovery port 111 conflicts with the screen 107. The rubber block is crushed and ground by the grinding roller 305 to form rubber powder. The rubber powder falls into the working chamber 105 from the gap between the two grinding rollers 305. The staff places a recovery frame on one side of the recovery port 111. The rubber block that is not fully ground cannot pass through the screen 107 and automatically slides into the recovery frame. A discharging port 112 is provided on the side wall of the box 101 away from the rotating motor 205. The inner top of the discharging port 112 conflicts with the screen 107. The staff collects the finished rubber powder through the discharging port 112. Figure 11-13 As shown, a plurality of linkage rods 108 are provided on the screen 107, and the linkage rods 108 penetrate the bearing plate 306, and a docking groove 109 is provided on the linkage rods 108, and a splicing rod 110 is slidably connected inside the docking groove 109. The movable plate 404 is fixedly connected with the splicing rod 110, and when the groove 307 passes through the movable plate 404, the movable plate 404 quickly approaches the groove 307 until it contacts the groove 307, and the movable plate 404 drives the splicing rod 110 to move away from the blower assembly 4, and the splicing rod 110 drives the linkage rod 108 to move upward, so that the bottom of the linkage rod 108 is separated from the screen 107; then, the groove 307 compresses the movable plate 404, until the movable plate 404 contacts the protrusion 308 again, and the movable plate 404 drives the splicing rod 110 to move toward the blower assembly 4, and the splicing rod 110 drives the linkage rod 108 to move downward, so that the bottom of the linkage rod 108 hits the screen 107. The movable plate 404 drives the connecting rod 108 to move up and down, so that the connecting rod 108 continuously performs a periodic motion of disengaging from and striking the screen 107 . The connecting rod 108 strikes the screen 107 and drives the screen 107 to vibrate irregularly, effectively improving the vibration clearing effect on the inside of the screen 107 .

[0028] The working principle of the present invention is as follows: after the staff puts the waste tire rubber blocks to be processed into the feeding bin 201, the central control module 102 is used to control the start of the rotating motor 205, and the rotating motor 205 drives the material leveling blade 203 to rotate, thereby stirring the rubber blocks in the feeding bin 201. The smaller rubber blocks can pass through the gap between the material leveling blade 203 and the material leveling tube 202 and fall directly onto the grinding roller 305, while the larger rubber blocks will fall onto the material leveling blade 203 first. Under the continuous rotation of the material leveling blade 203, the larger rubber blocks can fall onto the grinding roller 305, avoiding the blockage of the rubber blocks during material discharge, thereby effectively ensuring the smoothness and uniformity of material discharge.

[0029] Since the two grinding rollers 305 keep rotating in opposite directions, the rotating grinding rollers 305 can generate a strong squeezing force on the rubber block. When the rubber block falls onto the grinding rollers 305, the rubber block is crushed and ground into rubber powder, and the rubber powder falls into the working chamber 105 through the gap between the two grinding rollers 305. The rubber block that is not fully ground cannot pass through the screen 107 and automatically slides into the recovery frame through the recovery port 111, while the rubber powder that meets the particle size passes through the screen 107 and falls into the discharge chamber 106, and the staff can collect the finished rubber powder through the discharge port 112. During the continuous rotation of the grinding roller 305, the air pump is started to continuously deliver external air to the blast chamber 406. The blast assembly 4 can clean the rubber powder adhering to the grinding roller 305 in real time and improve the fluidity of the screen 107, thereby ensuring the grinding efficiency of the grinding roller 305. Specifically, when the protrusion 308 and the movable plate 404 are in conflict with each other, the return spring 407 is in a compressed state and the compression amount of the return spring 407 does not change. The overlapping area of ​​the docking hole 403 and the connecting hole 405 remains unchanged. The amount of gas in the overlapping area of ​​the connecting hole 405 remains unchanged, and the movable plate 404 can scrape off the rubber powder on the protrusion 308; when the groove 307 just passes through the movable plate 404, the restrictive effect of the protrusion 308 on the movable plate 404 is released, and the elastic potential energy stored in the reset spring 407 is quickly released, and the reset spring 407 stretches, prompting the movable plate 404 to move quickly away from the fixed plate 401, and the overlapping area of ​​the docking hole 403 and the connecting hole 405 continues to decrease, and the amount of gas passing through the overlapping area of ​​the docking hole 403 and the connecting hole 405 is reduced. The movable plate 404 is pressed against the groove 307 until the side wall of the movable plate 404 contacts the groove 307, and the movable plate 404 hits the groove 307, so that the rubber powder on the groove 307 and the protrusion 308 is loosened, and at the same time, the movable plate 404 drives the splicing rod 110 to move away from the air blowing assembly 4, and the splicing rod 110 drives the connecting rod 108 to move upward, and the bottom of the connecting rod 108 is separated from the screen 107; then, the groove 307 starts to squeeze the movable plate 404, and the movable plate 404 continues to squeeze the return spring 407, and the return spring 407 is continuously compressed and re-stores elastic potential energy The movable plate 404 moves toward the fixed plate 401, and the overlapping area of ​​the docking hole 403 and the connecting hole 405 continues to increase. The amount of gas passing through the overlapping area of ​​the docking hole 403 and the connecting hole 405 increases until the movable plate 404 collides with the protrusion 308 again. At the same time, the movable plate 404 drives the splicing rod 110 to move toward the direction close to the blowing assembly 4, and the splicing rod 110 drives the connecting rod 108 to move downward. The bottom of the connecting rod 108 hits the screen 107, causing the rubber powder blocked inside the screen 107 to fall into the discharge chamber 106.During the above process, the movable plate 404 performs periodic reciprocating motion in the fixed plate 401, the overlapping area of ​​the docking hole 403 and the connecting hole 405 keeps changing, the size and direction of the wind force borne by the rubber powder adhering to the groove 307 and the protrusion 308 keeps changing, and a pulse wind cleaning effect is achieved on the rubber powder on the groove 307 and the protrusion 308. At the same time, the movable plate 404 continuously hits the groove 307, so that the rubber powder in the groove 307 and the protrusion 308 is loosened, further enhancing the cleaning effect of the rubber powder. In addition, the movable plate 404 drives multiple connecting rods 108 to reciprocate up and down, and the bottom of the connecting rod 108 hits the screen 107 and drives the screen 107 to perform irregular reciprocating vibration, which effectively improves the vibration clearing effect on the inside of the screen 107, improves the fluidity of the rubber powder, and ensures the continuity of production.

[0030] Embodiment 2: Based on the technical solution of the above-mentioned embodiment 1, when the tire rubber blocks piled on the grinding roller 305 are large and in large number, the grinding force of the grinding roller 305 needs to be adjusted in time to ensure the stability of the grinding rate of the grinding roller 305. However, the circulation equipment in the prior art lacks the ability to adaptively adjust the grinding force of the rubber blocks, resulting in the situation that the tire rubber blocks are not ground properly when they are large and piled up. At the same time, when the grinding force of the grinding roller 305 is large, the friction between the grinding roller 305 and the rubber blocks will increase significantly, thereby causing the temperature between the grinding roller 305 and the tire rubber blocks to increase, the viscosity of the rubber powder increases and sticks together, and it is easier to adhere to the grinding roller 305, resulting in uneven production quality of the rubber powder, and further reducing the subsequent grinding efficiency of the tire rubber blocks. In order to solve the above-mentioned problems, embodiment 2 is proposed.

[0031] like Figure 3 , Figure 7 As shown, the grinding assembly 3 includes a plurality of electric push rods 301, the input ends of the plurality of electric push rods 301 are fixedly connected to the box body 101, and the output ends are connected to the displacement plates 302. When the electric push rods 301 are started and the output ends drive the displacement plates 302 to move closer to or away from each other, the displacement plates 302 drive the grinding rollers 305 to move synchronously, thereby controlling the size of the gap between the two grinding rollers 305.

[0032] During use of the circulation device, the material leveling component 2 is used to screen rubber blocks of different sizes, and the electric push rod 301 is controlled to keep moving synchronously, so that the circulation device can adaptively adjust the grinding force according to the size of the rubber block to ensure that rubber blocks of different sizes can be fully ground. Specifically: In the first stage, the rubber blocks with smaller sizes in the feeding bin 201 directly fall onto the grinding roller 305 through the gap between the material balancing blade 203 and the material balancing tube 202, and the multiple groups of electric push rods 301 are controlled to start and the output ends are shortened at the same time, driving the grinding rollers 305 to move away from each other, and the squeezing force between the grinding rollers 305 and the rubber blocks is reduced. This squeezing force can ensure that the rubber blocks with smaller sizes are fully ground, and at the same time reduce the friction between the grinding rollers 305 and the rubber blocks, avoiding the problem that the viscosity of the rubber powder increases due to frictional heat generation, and the rubber powder is more likely to adhere to the grinding roller 305. In the initial state, the electric push rod 301 controls the grinding roller 305 to move away from the blasting assembly 4, the squeezing force of the grinding roller 305 on the movable plate 404 is reduced, the reset spring 407 is stretched, and the movable plate 404 moves away from the fixed plate 401, the overlapping area of ​​the docking hole 403 and the connecting hole 405 becomes smaller, the amount of gas passing through the overlapping area of ​​the docking hole 403 and the connecting hole 405 is reduced, and the elastic performance stored in the reset spring 407 is reduced. The movable plate 404 performs periodic reciprocating motion in the fixed plate 401. At this time, the rubber block particles on the grinding roller 305 are smaller and fewer in number, so the amount of rubber powder adhering to the grinding roller 305 is reduced. During the continuous rotation of the grinding roller 305, the pulse wind force on the rubber powder on the groove 307 and the protrusion 308 is reduced as a whole. At the same time, the elastic potential energy stored in the reset spring 407 is reduced, which avoids the rubber powder splashing everywhere and causing waste of rubber powder.

[0033] In the second stage, when the rubber block with a larger size in the feeding bin 201 falls onto the grinding roller 305 through the material distribution blade 203, the multiple groups of electric push rods 301 are controlled to start and the output ends are extended at the same time, driving the grinding rollers 305 to approach each other, and the squeezing force between the grinding rollers 305 and the rubber block increases, so that the rubber block with a larger size is fully ground. However, due to the synchronous increase in the friction between the grinding rollers 305 and the rubber block, the temperature between the grinding rollers 305 and the rubber block increases, the viscosity of the rubber powder increases and sticks together, and it is easier to adhere to the grinding roller 305. In the initial state, the electric push rod 301 controls the grinding roller 305 to approach the blast assembly 4, the squeezing force of the grinding roller 305 on the movable plate 404 increases, the reset spring 407 shrinks, the movable plate 404 moves in the direction close to the fixed plate 401, the overlapping area of ​​the docking hole 403 and the connecting hole 405 increases, the amount of gas passing through the overlapping area of ​​the docking hole 403 and the connecting hole 405 increases, and the elastic performance stored in the reset spring 407 increases. The movable plate 404 performs periodic reciprocating motion in the fixed plate 401. Since the amount of gas passing through the overlapping area of ​​the docking hole 403 and the connecting hole 405 in the second stage is larger than that in the first stage, the rubber powder adhering to the groove 307 and the protrusion 308 is subjected to a greater pulse wind force, thereby achieving a cleaning effect on the rubber powder adhering at high temperature. At the same time, the reset spring 407 stores a larger elastic potential energy, and in the process of hitting the groove 307, the cleaning effect on the rubber powder adhering at high temperature is further enhanced. In addition, the pulse wind force can quickly cool down the heat between the grinding roller 305 and the rubber block, thereby avoiding the continuous deterioration of problems caused by high temperature.

[0034] After completing the second stage of grinding the larger rubber blocks, repeat the first stage of grinding the smaller rubber blocks, and then continue to repeat the above process to fully grind the subsequent rubber blocks of different sizes, and clean the rubber powder at different temperatures in time, so as to improve the grinding efficiency and grinding stability of the rubber blocks.

[0035] During the above process, the material distribution component 2 is able to screen rubber blocks of different sizes and discharge them in stages, and synchronously control the grinding rollers 305 to move closer or further away from each other, thereby realizing adaptive adjustment of the grinding force of rubber blocks of different sizes. At the same time, the pulse wind force is adaptively adjusted according to the temperature change between the grinding roller 305 and the rubber block, thereby avoiding the waste of rubber powder at low temperatures, enhancing the cleaning effect of the adhered rubber powder at high temperatures, and realizing rapid cooling of the heat between the grinding roller 305 and the rubber block, thereby effectively solving the high temperature problem of the rubber powder.

[0036] Embodiment three: This embodiment discloses an application of a waste tire recycling device in a permeable asphalt pavement, comprising the following steps: S1, after the waste tire rubber blocks to be processed are put into the feeding bin 201, the rubber blocks with smaller sizes fall directly onto the grinding rollers 305 through the gap between the material balancing blades 203 and the material balancing tube 202, and the grinding rollers 305 are controlled to move away from each other; S2, the rubber blocks with larger size fall onto the grinding rollers 305 under the continuous rotation of the material distribution blades 203, and the grinding rollers 305 are controlled to move closer to each other; S3, the rubber block is crushed and ground into rubber powder, and the rubber powder falls into the working chamber 105 through the gap between the two grinding rollers 305; S4. The rubber blocks that are not fully ground cannot pass through the screen 107, while the rubber powder that meets the particle size requirements passes through the screen 107 and falls into the discharge cavity 106.

[0037] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0038] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A waste tire recycling device, comprising a carrier assembly (1), characterized in that: The carrier component (1) is connected to a material distribution component (2), two groups of grinding components (3) are arranged inside the carrier component (1), and both groups of grinding components (3) are provided with air blowing components (4); The carrier assembly (1) comprises a box body (101); The material distribution component (2) comprises a material feeding bin (201); The grinding assembly (3) comprises a plurality of electric push rods (301), the input ends of the plurality of electric push rods (301) are fixedly connected to the box (101), and the output ends are connected to a displacement plate (302), the displacement plate (302) is provided with two fixing seats (303), a transmission shaft (304) is rotatably connected between the two fixing seats (303), a grinding roller (305) is sleeved on the transmission shaft (304), a plurality of grooves (307) are formed in a circular array on the grinding roller (305), and a protrusion (308) is provided between adjacent grooves (307); The air blowing assembly (4) comprises a fixing plate (401), the side walls on both sides of the fixing plate (401) being fixedly connected to the box body (101), and one end of the fixing plate (401) away from the grinding assembly (3) being fixedly connected to a cylindrical portion (402), and a vent hole (408) being provided on the cylindrical portion (402).

2. The waste tire recycling equipment according to claim 1 is characterized in that: The bottom of the feeding bin (201) is connected to a material balancing pipe (202), the material balancing pipe (202) penetrates and extends to the interior of the box body (101), a material balancing leaf (203) is provided inside the material balancing pipe (202), the interior of the material balancing leaf (203) is connected to a connecting rod (204), one end of the connecting rod (204) is fixedly connected to the material balancing pipe (202), and the other end penetrates the material balancing pipe (202) and is connected to a rotating motor (205).

3. The waste tire recycling equipment according to claim 1 is characterized in that: The box (101) further comprises a central control module (102), wherein the central control module (102) is connected to the box (101), and a plurality of columns (103) are provided on the box (101), wherein a plurality of reinforcing rods (104) are connected between adjacent columns (103).

4. The waste tire recycling equipment according to claim 1 is characterized in that: A bearing plate (306) is provided at one end of the displacement plate (302) away from the fixing seat (303), and one end of the bearing plate (306) away from the grinding roller (305) is fixedly connected to the box body (101).

5. The waste tire recycling equipment according to claim 4 is characterized in that: A working chamber (105) and a material discharging chamber (106) are provided inside the box body (101); a screen (107) is connected between the working chamber (105) and the material discharging chamber (106); the screen (107) is arranged in an inclined shape and is fixedly connected to the inner wall of the box body (101); a plurality of linkage rods (108) are provided on the screen (107); the linkage rods (108) penetrate the bearing plate (306); a docking groove (109) is provided on the linkage rod (108); a splicing rod (110) is slidably connected inside the docking groove (109).

6. The waste tire recycling equipment according to claim 5 is characterized in that: A recovery port (111) is provided on a side wall of the box body (101) close to the rotating motor (205), and the inner bottom of the recovery port (111) contacts the screen (107). A discharge port (112) is provided on a side wall of the box body (101) away from the rotating motor (205), and the inner top of the discharge port (112) contacts the screen (107).

7. The waste tire recycling equipment according to claim 5 is characterized in that: The fixed plate (401) is evenly provided with a plurality of docking holes (403); a movable plate (404) is sealed and slidably connected inside the fixed plate (401); the movable plate (404) is fixedly connected to the splicing rod (110); side walls on both sides of the movable plate (404) are in contact with the box body (101); a return spring (407) is connected between the fixed plate (401) and the movable plate (404); a plurality of connecting holes (405) are evenly provided on the movable plate (404); a space enclosed between the fixed plate (401) and the movable plate (404) forms an air blowing chamber (406); and air permeable membranes are provided inside the docking holes (403) and the connecting holes (405).

8. The waste tire recycling equipment according to claim 1 is characterized in that: Both ends of the cylindrical portion (402) penetrate the box body (101) respectively; one end of the cylindrical portion (402) is provided with a filter screen, and the other end is connected to an air pump.

9. An application of the waste tire recycling equipment according to any one of claims 1 to 8 in a permeable asphalt pavement, characterized in that: The following steps are involved: S1, after the waste tire rubber blocks to be processed are put into the feeding bin (201), the rubber blocks with smaller sizes directly fall onto the grinding rollers (305) through the gap between the material balancing blades (203) and the material balancing pipe (202), and the grinding rollers (305) are controlled to move away from each other; S2, the rubber blocks with larger sizes fall onto the grinding rollers (305) under the continuous rotation of the material distribution blades (203), and the grinding rollers (305) are controlled to move closer to each other; S3, the rubber block is crushed and ground into rubber powder, and the rubber powder falls into the working chamber (105) through the gap between the two grinding rollers (305); S4. Rubber blocks that are not fully ground cannot pass through the screen (107), while rubber powder that meets the particle size requirements passes through the screen (107) and falls into the discharge chamber (106).

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