Waste concrete recovery device
By adopting an inclined drying box and material separation mechanism in the concrete recovery device, the crushed materials are evenly dispersed and the drying process is optimized, and the problems of low drying efficiency and insufficient capacity in the prior art are solved, which significantly improves the efficiency of the recycling device.
Patent Information
- Application Number
- CN202323637124.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2023-12-29
- Publication Date
- 2024-12-13
- Estimated Expiration
- 2033-12-29
AI Technical Summary
When drying waste concrete, the existing concrete recycling device has low efficiency and insufficient capacity, resulting in difficulty in stacking and mixing of broken objects, affecting the overall recycling efficiency.
A waste concrete recycling device including an inclined drying box and a material separation mechanism is designed to disperse the crushed materials evenly through four layers of inclined plates, increase the capacity and heating area of the drying box, and control the discharge of the crushed materials by using the sweeping mechanism. Speed, improve drying efficiency.
By evenly dispersing the crushed materials and optimizing the drying process, the drying efficiency and capacity are significantly improved, the accumulation of crushed materials is avoided, and the overall efficiency of the recycling device is improved.
Smart Images
Figure CN222152152U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of concrete recycling, in particular to a waste concrete recycling device. Background Art
[0002] In concrete processing stations, waste concrete comes from many sources, such as concrete lumps washed down by various equipment, or concrete test fragments used for testing, or defective products. These waste concrete blocks can be recycled and used in engineering buildings with lower strength requirements.
[0003] At present, the first step of recycling wet waste concrete blocks is basically to crush them, and the second step is to dry and dehydrate them. In order to simplify the operation process and avoid multiple transportation, many concrete processing companies will combine the first and second steps into one device. From the current commonly used operation results, the efficiency of crushing waste concrete is much higher than the efficiency of drying waste concrete crushed materials. Therefore, the crushed materials often fill up the drying box, resulting in insufficient equipment capacity, and then need to wait for the drying to be completed. If the capacity of the drying box is simply increased, it will cause excessive accumulation of crushed materials and make stirring difficult, which also reduces the drying efficiency.
[0004] Therefore, how to improve the drying efficiency and capacity of the recovery device is the key to improving the recovery efficiency. Utility Model Content
[0005] In view of this, the purpose of the utility model is to provide a waste concrete recycling device, which, through structural improvement, changes the collection and distribution method, drying method and transportation method of the waste concrete crushed materials of the recycling device, thereby improving the drying efficiency and capacity of the recycling device, and then improving the recycling efficiency, so as to solve the problems described in the background technology.
[0006] The technical solution of the utility model is achieved in this way:
[0007] A waste concrete recycling device comprises a crushing box and a drying box arranged on a supporting frame, the drying box is a box body with a rectangular cross section and openings at both ends, the drying box is tilted and horizontally arranged, one end of the drying box is connected to the middle and lower part of the side wall of the crushing box, the outside of the drying box is wrapped with a heat insulation layer, and the inside of the drying box is provided with four layers of inclined plates parallel to the top wall of the drying box from top to bottom, and the end of the inclined plate facing the crushing box is provided with a receiving inclined plate extending into the crushing box, the receiving inclined plate is inclined to one end of the inclined plate, and the ends of the receiving inclined plates of the inclined plates on the upper two layers of the four layers of the inclined plates only extend to the middle of the crushing box, and the four layers of the inclined plates are connected to the upper two layers of the inclined plates. The ends of the receiving inclined plates of the lower two layers of the inclined plates extend to the inner wall of the crushing box, and the exposed areas of the receiving inclined plates of the four layers of the inclined plates in the vertical downward direction account for one quarter of the horizontal cross-section of the internal space of the drying box. A feed hopper is provided on the top of the crushing box, and a crushing mechanism for receiving the feed from the feed hopper is provided above the inside of the crushing box. A dividing mechanism for receiving the discharge of the crushing mechanism and evenly dividing the material to the receiving inclined plate is also provided between the crushing mechanism and the receiving inclined plate. A heating mechanism is also provided in the drying box, and a sweeping mechanism is also provided in the drying box for pushing the crushed material on the inclined plate to be discharged to the outlet of the drying box.
[0008] When using the above scheme, waste concrete is added from the feed port at the top of the crushing box. After being crushed by the crushing mechanism, the waste concrete is crushed into fragments. Then the material distribution mechanism receives the fragments and evenly distributes them to four receiving inclined plates. After the fragments fall on the receiving inclined plates, they slide onto the inclined plates in the drying box. The capacity of the drying box is fully utilized to store the fragments by using four layers of inclined plates and extending the length of the drying box. Since the fragments are evenly distributed on the four layers of inclined plates, the accumulation of fragments is avoided, and the spreading area of the fragments is increased, thereby improving the drying efficiency. Subsequently, the fragments slowly slide down the inclined plates in the drying box, and are heated and dehumidified by the heating mechanism in the drying box during the sliding process. During this period, the fragments can also be swept by the sweeping mechanism. First, the discharge speed of the fragments can be controlled according to the actual situation, and second, the fragments are dispersed during the sweeping process to improve the drying effect.
[0009] A further technical solution is that the material distribution mechanism includes a discharging hopper arranged below the crushing mechanism for receiving the crushed material discharged by the crushing mechanism, a discharging pipe is provided at the bottom of the discharging hopper, the material distribution mechanism also includes an annular block arranged in an annular shape outside the discharging pipe, the outer wall of the annular block is also fixedly connected to the inner wall of the crushing box through a mounting frame, an annular groove is also opened on the inner wall of the annular block, a straight sleeve is also provided between the discharging pipe and the annular block, the straight sleeve is rotatably sleeved outside the discharging pipe, the outer wall of the straight sleeve is also provided with a limit block, the straight sleeve is slidably and rotatably connected in the annular groove of the annular block through the limit block, the annular groove is also used to prevent the limit block from falling out of the annular block upward or downward, a first driven wheel is also fixedly sleeved on the straight sleeve, a first driving motor is also fixedly provided on the inner wall of the crushing box, a first driving wheel is also provided on the output shaft of the first driving motor, the first driven wheel and the first driving wheel are driven, and an inclined inclined pipe is also connected to the bottom of the straight sleeve.
[0010] When the above scheme is used, the crushed materials discharged by the crushing mechanism fall into the discharge hopper, slide to the bottom of the discharge hopper, and are discharged downward from the discharge pipe, fall into the straight sleeve, and then fall from the straight sleeve into the inclined tube. The first drive motor is started, the first drive motor drives the first driving wheel to rotate, the first driving wheel drives the first driven wheel to rotate, the first driven wheel drives the straight sleeve to rotate, and the straight sleeve drives the inclined tube to rotate, so that the bottom outlet of the inclined tube makes a circular motion, and the crushed materials are evenly scattered on the receiving inclined plate along with the circular motion of the bottom outlet of the inclined tube.
[0011] A further technical solution is that the inclination angle of the inclined plate is 1° to 2°.
[0012] When using the above solution, by setting the inclination angle of 1° to 2°, the crushed materials can slide in the same direction on the inclined plate, thereby determining the qualitative problem of the sliding direction and preventing the crushed materials from sliding too fast, resulting in insufficient heating time, thereby solving the quantitative problem of the sliding speed.
[0013] A further technical solution is that the crushing mechanism includes two crushing rollers oppositely arranged in a crushing box, the two crushing rollers are rotatably mounted on the inner wall of the crushing box, the rotating shafts of the two crushing rollers pass through the outside of the crushing box and are respectively provided with a second driven wheel and a third driven wheel, the second driven wheel and the third driven wheel are driven and connected to each other in opposite directions, a second drive motor is also provided on the outer wall of the crushing box, a second driving wheel is also provided on the output shaft of the second driving motor, and the second driving wheel is driven and connected to the second driven wheel or the third driven wheel.
[0014] A further technical solution is that the heating mechanism includes a plurality of heating components respectively fixed on the top wall of the drying box and the lower end surface of the inclined plate, and the heating components are arranged at equal intervals from one side port to the other side port of the drying box.
[0015] A further technical solution is that the sweeping mechanism includes a plurality of rotating sweeping rods, which are rotatably installed on the side wall of the drying box above each layer of inclined plates, and the plurality of rotating sweeping rods above each layer of inclined plates are spaced apart from one side port to the other side port of the drying box, and the rotating sweeping rod includes a rotating shaft rotatably passed through the side wall of the drying box, one end of the rotating shaft passes through the side wall of the drying box and is provided with a fourth driven wheel, and the other end of the rotating shaft is inside the drying box and is provided with a vertical rod, one end of the vertical rod is fixedly connected to the rotating shaft, and the other end of the vertical rod is fixedly connected to a cross rod, and the cross rod and the rotating shaft are parallel to each other, and a third driving motor is also provided on the outer wall of the drying box, and a third driving wheel is also provided on the output shaft of the third driving motor, and the third driving wheel is driven and connected to the fourth driven wheel closest to the third driving wheel, and two adjacent fourth driven wheels are driven and connected to each other in the same direction.
[0016] When the above scheme is used, after the crushed material slides down the receiving inclined plate to the inclined plate, the third driving motor is started, the third driving motor drives the third driving wheel to rotate, the third driving wheel drives the adjacent fourth driven wheel to rotate, the fourth driven wheel drives the adjacent fourth driven wheel to rotate in the same direction, thereby driving the rotating shaft to rotate, the rotating shaft rotation drives the vertical rod to rotate, the vertical rod rotation drives the cross rod to rotate, the cross rod continuously performs circular axis motion during the rotation process, thereby sweeping the crushed material from the high part of the inclined plate to the low part of the inclined plate, and the crushed material can be turned over and the crushed material can be prevented from piling up during the sweeping process. When the rotation speed of the rotating shaft is increased, the speed at which the crushed material is swept is increased, and the discharge speed is also increased accordingly.
[0017] A further technical solution is that the heat insulation layer includes a heat insulation layer wrapped on the outer wall of the drying box and a protective shell wrapped outside the heat insulation layer.
[0018] A further technical solution is that the topmost receiving inclined plate among the four-layer inclined plates is the first receiving inclined plate, and below the first receiving inclined plate are the second receiving inclined plate, the third receiving inclined plate and the fourth receiving inclined plate in sequence, the vertical projection of the first receiving inclined plate is a rectangle and one side wall of the first receiving inclined plate is against the left inner wall of the crushing box, the vertical projection of the second receiving inclined plate is a rectangle and one side wall of the second receiving inclined plate is against the left and right inner walls of the crushing box, the vertical projection of the third receiving inclined plate is a rectangle and one side wall of the third receiving inclined plate is against the left inner wall of the crushing box, and the vertical projection of the fourth receiving inclined plate is a rectangle and one side wall of the fourth receiving inclined plate is against the right inner wall of the crushing box.
[0019] A further technical solution is that a side wall of the second receiving inclined plate extends to directly below the first receiving inclined plate and is provided with a baffle upward, and a side wall of the fourth receiving inclined plate extends to directly below the third receiving inclined plate and is provided with a baffle upward.
[0020] When the above solution is used, the second receiving inclined plate and the fourth receiving inclined plate are extended and a baffle is provided to prevent the crushed materials from falling to the bottom of the crushing box.
[0021] A further technical solution is that a curtain is provided at the bottom of the top wall of the drying box or the bottom of the inclined plate above each layer of inclined plate at the outlet of the drying box.
[0022] When the above solution is used, the curtain can reduce the heat escape from the drying box without hindering the discharge of the scraps.
[0023] The beneficial effects of the utility model are:
[0024] 1. By setting up a material distribution mechanism and the corresponding four receiving inclined plates, inclined plates and drying boxes, the material distribution mechanism receives the crushed materials and evenly distributes them to the four receiving inclined plates, and then transfers them to the inclined plates. The capacity of the drying box is fully utilized to store the crushed materials through the four layers of inclined plates and the length of the drying box. Since the crushed materials are evenly distributed on the four layers of inclined plates, the accumulation of crushed materials is avoided, the spreading area of crushed materials is increased, and the drying efficiency is improved. At the same time, the sweeping mechanism is used to sweep the crushed materials. First, the discharge speed of the crushed materials can be controlled according to the actual situation, and second, the crushed materials can be dispersed during the sweeping process to improve the drying effect.
[0025] 2. By extending the second receiving inclined plate and the fourth receiving inclined plate and providing a baffle, the crushed materials are prevented from falling to the bottom of the crushing box. BRIEF DESCRIPTION OF THE DRAWINGS
[0026] Figure 1 This is a vertical cross-sectional view of the overall structure of the device;
[0027] Figure 2 for Figure 1 A magnified view of the structure at center;
[0028] Figure 3 for Figure 1 Sectional view along line BB;
[0029] Figure 4 For along Figure 1 Layout of the receiving inclined plate observed from the middle C direction;
[0030] Figure 5 For along Figure 1 The structure diagram of the rotating sweeping rod observed from the middle D direction;
[0031] Figure 6 This is a top view of the structure of the device.
[0032] In the figure, 1, support frame, 2, crushing box, 3, feed hopper, 4, crushing roller, 5, discharge hopper, 6, discharge pipe, 7, mounting frame, 8, annular block, 9, limit block, 10, straight sleeve, 11, first driven wheel, 12, inclined pipe, 13, first drive motor, 14, first driving wheel, 15, first receiving inclined plate, 1501, first inclined plate, 16, second receiving inclined plate, 1601, second inclined plate, 17, third receiving inclined plate, 1701, third Inclined plate, 18. Fourth receiving inclined plate, 1801. Fourth inclined plate, 19. Drying box, 20. Insulation layer, 21. Protective shell, 22. Curtain, 23. Heating component, 24. Rotating sweeping rod, 2401. Rotating shaft, 2402. Vertical rod, 2403. Cross rod, 25. Second driven wheel, 26. Third driven wheel, 27. Second driving wheel, 28. Second drive motor, 29. Third drive motor, 30. Fourth driven wheel, 31. Third driving wheel. DETAILED DESCRIPTION
[0033] In order to better understand the technical content of the present invention, specific embodiments are provided below, and the present invention is further described in conjunction with the accompanying drawings.
[0034] See also Figures 1 to 6 A waste concrete recycling device includes a crushing box 2 and a drying box 19 arranged on a support frame 1. The drying box 19 is a rectangular box, a feed hopper 3 is arranged on the top of the drying box 19, and a crushing mechanism for receiving the feed from the feed hopper 3 is arranged above the crushing box 2.
[0035] The crushing mechanism includes two crushing rollers 4 arranged opposite to each other in the crushing box 2. The two crushing rollers 4 are rotatably installed on the inner wall of the crushing box 2. The rotating shafts of the two crushing rollers 4 pass through the crushing box 2 and are respectively provided with a second driven wheel 25 and a third driven wheel 26. The second driven wheel 25 and the third driven wheel 26 are both gears, and the second driven wheel 25 and the third driven wheel 26 are meshed. A second driving motor 28 is also provided on the outer wall of the crushing box 2. A second driving wheel 27 is also provided on the output shaft of the second driving motor 28. The second driving wheel 27 is a gear, and the second driving wheel 27 is meshed with the second driven wheel 25 or the third driven wheel 26.
[0036] A material distribution mechanism is provided below the crushing mechanism for receiving the material discharged from the crushing mechanism and evenly distributing the material.
[0037] The material distribution mechanism includes a discharge hopper 5 arranged below the crushing mechanism for receiving the crushed materials discharged by the crushing mechanism, and a discharge pipe 6 is arranged at the bottom of the discharge hopper 5. The material distribution mechanism also includes an annular block 8 arranged outside the discharge pipe 6, the outer wall of the annular block 8 is fixedly connected to the inner wall of the crushing box 2 through a mounting frame 7, and an annular groove is also provided on the inner wall of the annular block 8. A straight sleeve 10 is arranged between the discharge pipe 6 and the annular block 8, and the straight sleeve 10 is rotatably sleeved outside the discharge pipe 6. An annular stopper 9 is arranged on the outer wall of the straight sleeve 10, and the straight sleeve 10 is slidably and rotatably connected in the annular groove of the annular block 8 through the stopper 9, and the annular groove is also used to prevent the stopper 9 from slipping out of the annular block 8 upward or downward. A first driven wheel 11 is fixedly sleeved on the straight sleeve 10, and the first driven wheel 11 is a belt pulley. A first driving motor 13 is also fixedly mounted on the inner wall of the crushing box 2. A first driving wheel 14 is also mounted on the output shaft of the first driving motor 13, and the first driving wheel 14 is a belt pulley. The first driven wheel 11 and the first driving wheel 14 are connected by belt drive. An inclined inclined pipe 12 is connected to the bottom of the straight sleeve 10.
[0038] The drying box 19 is a box body with a rectangular cross section and open at both ends. The drying box 19 is tilted and placed horizontally, and the tilt angle is 1° to 2°. One end of the drying box 19 is connected to the lower middle part of the side wall of the crushing box 2. Four layers of inclined plates parallel to the top wall of the drying box 19 are arranged from top to bottom inside the drying box 19, and the inclination angle of the inclined plates is 1° to 2°. A receiving inclined plate is extended to the inside of the crushing box 2 at one end of the inclined plate toward the crushing box 2, and the receiving inclined plate is tilted toward one end of the inclined plate.
[0039] The inclined plates from top to bottom are the first inclined plate 1501 , the second inclined plate 1601 , the third inclined plate 1701 and the fourth inclined plate 1801 , and the corresponding extended receiving inclined plates are the first receiving inclined plate 15 , the second receiving inclined plate 16 , the third receiving inclined plate 17 and the fourth receiving inclined plate 18 .
[0040] The ends of the first receiving inclined plate 15 and the second receiving inclined plate 16 only extend to the middle of the crushing box 2, and the ends of the third receiving inclined plate 17 and the fourth receiving inclined plate 18 extend to the inner wall of the crushing box 2. The exposed areas of the four layers of receiving inclined plates in the vertical downward direction each occupy one quarter of the horizontal cross-section of the internal space of the drying box 19.
[0041] The vertical projection of the first receiving inclined plate 15 is a rectangle and one side wall of the first receiving inclined plate 15 is in contact with the left inner wall of the crushing box 2;
[0042] The second receiving inclined plate 16 is vertically projected into a rectangle and one side wall of the second receiving inclined plate 16 is in contact with the left and right inner walls of the crushing box 2. The other side wall of the second receiving inclined plate 16 extends to the bottom of the first receiving inclined plate 15 and is provided with a baffle upward.
[0043] The vertical projection of the third receiving inclined plate 17 is a rectangle and one side wall of the third receiving inclined plate 17 is in contact with the left inner wall of the crushing box 2;
[0044] The fourth receiving inclined plate 18 is vertically projected into a rectangle and one side wall of the fourth receiving inclined plate 18 abuts against the right inner wall of the crushing box 2. The other opposite side wall of the fourth receiving inclined plate 18 extends to just below the third receiving inclined plate 17 and is provided with a baffle upward.
[0045] The drying box 19 is wrapped with an insulation layer, which includes an insulation layer 20 wrapped on the outer wall of the drying box 19 and a protective shell 21 wrapped outside the insulation layer 20. The insulation layer 20 is insulation cotton or insulation foam board, and the protective shell 21 is an iron shell.
[0046] A heating mechanism is provided in the drying box 19, and the heating mechanism includes a plurality of heating components 23 respectively fixed on the top wall and the lower end surface of the inclined plate of the drying box 19. Preferably, the heating components 23 are heating rods or heating lamps. The heating components 23 are arranged at equal intervals from one port to the other port of the drying box 19.
[0047] A sweeping mechanism is also provided in the drying box 19 for pushing the crushed materials on the inclined plate to be discharged to the outlet of the drying box 19. The sweeping mechanism includes a plurality of rotating sweeping rods 24, which are rotatably mounted on the side wall of the drying box 19 above each layer of inclined plates, and the plurality of rotating sweeping rods 24 above each layer of inclined plates are arranged at intervals from one side port to the other side port of the drying box 19.
[0048] Specifically, the rotating sweeping rod 24 includes a rotating shaft 2401 that is rotatably arranged in the side wall of the drying box 19. One end of the rotating shaft 2401 passes through the side wall of the drying box 19 and is provided with a fourth driven wheel 30. The fourth driven wheel 30 is a pulley with double grooves. The other end of the rotating shaft 2401 is inside the drying box 19 and is provided with a vertical rod 2402. One end of the vertical rod 2402 is fixedly connected to the rotating shaft 2401. The other end of the vertical rod 2402 is fixedly connected to the horizontal rod 2403. Preferably, the horizontal rod 2403 is a round rod. The horizontal rod 2403 and the rotating shaft 2401 are parallel to each other and in the same direction.
[0049] A third driving motor 29 is also provided on the outer wall of the drying box 19, and a third driving wheel 31 is also provided on the output shaft of the third driving motor 29. The third driving wheel 31 is a belt pulley. The third driving wheel 31 is connected to the fourth driven wheel 30 closest to the third driving wheel 31 through a belt drive, and the two adjacent fourth driven wheels 30 are connected to each other in the same direction through a belt drive.
[0050] The drying box 19 top wall bottom or the inclined plate bottom above each layer of the drying box 19 outlets are also provided with a curtain 22. The curtain 22 is a PVC sheet, which is attached or nailed to the drying box 19 top bottom or the inclined plate bottom.
[0051] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention shall be included in the protection scope of the present invention.
Claims
1. A waste concrete recycling device, characterized in that: The invention comprises a crushing box and a drying box which are arranged on a supporting frame, wherein the drying box is a box body with a rectangular cross section and openings at both ends, the drying box is tilted and placed horizontally, one end of the drying box is connected to the middle and lower part of the side wall of the crushing box, the outside of the drying box is wrapped with a heat insulation layer, and the inside of the drying box is provided with four layers of inclined plates which are parallel to the top wall of the drying box from top to bottom, and the end of the inclined plate facing the crushing box is provided with a receiving inclined plate which extends into the crushing box, and the receiving inclined plate is inclined to one end of the inclined plate, and the ends of the receiving inclined plates of the inclined plates in the upper two layers of the four layers of the inclined plates only extend to the middle of the crushing box, and the receiving inclined plates of the inclined plates in the four layers of the inclined plates are provided with receiving inclined plates which extend to the middle of the crushing box. The ends of the receiving inclined plates of the two lower layers extend to the inner wall of the crushing box, and the exposed areas of the receiving inclined plates of the four layers of the inclined plates in the vertical downward direction account for one quarter of the horizontal cross-section of the internal space of the drying box. A feed hopper is provided on the top of the crushing box, and a crushing mechanism for receiving the feed from the feed hopper is provided above the inside of the crushing box. A dividing mechanism for receiving the discharge of the crushing mechanism and evenly dividing the material to the receiving inclined plate is also provided between the crushing mechanism and the receiving inclined plate. A heating mechanism is also provided in the drying box, and a sweeping mechanism is also provided in the drying box for pushing the crushed material on the inclined plate to be discharged to the outlet of the drying box.
2. The waste concrete recycling device according to claim 1, characterized in that: The discharging opening is connected with the chute to the upper and lower surfaces of the chute, and the chute is connected with the chute to form a discharge pipe, and the chute is connected with the discharge pipe to form a discharge pipe.
3. The waste concrete recycling device according to claim 1, characterized in that: The inclination angle of the inclined plate is 1° to 2°.
4. The waste concrete recycling device according to claim 1, characterized in that: The crushing mechanism includes two crushing rollers arranged opposite to each other in the crushing box, the two crushing rollers are rotatably mounted on the inner wall of the crushing box, the rotating shafts of the two crushing rollers pass through the outside of the crushing box and are respectively provided with a second driven wheel and a third driven wheel, the second driven wheel and the third driven wheel are driven and connected to each other in opposite directions, a second driving motor is also provided on the outer wall of the crushing box, a second driving wheel is also provided on the output shaft of the second driving motor, and the second driving wheel is driven and connected to the second driven wheel or the third driven wheel.
5. The waste concrete recycling device according to claim 1, characterized in that: The heating mechanism comprises a plurality of heating components respectively fixed on the top wall of the drying box and the lower end surface of the inclined plate, and the heating components are arranged at equal intervals from one side port to the other side port of the drying box.
6. The waste concrete recycling device according to claim 1, characterized in that: The sweeping mechanism includes a plurality of rotating sweeping rods, which are rotatably mounted on the side wall of the drying box above each layer of inclined plates, and the plurality of rotating sweeping rods above each layer of inclined plates are spaced apart from one side port to the other side port of the drying box, and the rotating sweeping rod includes a rotating shaft rotatably arranged in the side wall of the drying box, one end of the rotating shaft passes through the side wall of the drying box and is provided with a fourth driven wheel, the other end of the rotating shaft is inside the drying box and is provided with a vertical rod, one end of the vertical rod is fixedly connected to the rotating shaft, and the other end of the vertical rod is fixedly connected to a cross rod, the cross rod and the rotating shaft are parallel to each other, a third driving motor is also provided on the outer wall of the drying box, and a third driving wheel is also provided on the output shaft of the third driving motor, the third driving wheel is drivingly connected to the fourth driven wheel closest to the third driving wheel, and two adjacent fourth driven wheels are drivingly connected to each other in the same direction.
7. A waste concrete recycling device according to any one of claims 1 to 6, characterized in that: The heat insulation layer comprises a heat insulation layer wrapped on the outer wall of the drying box and a protective shell wrapped outside the heat insulation layer.
8. The waste concrete recycling device according to claim 1, characterized in that: The topmost receiving inclined plate among the four-layer inclined plates is the first receiving inclined plate, and the second receiving inclined plate, the third receiving inclined plate and the fourth receiving inclined plate are arranged below the first receiving inclined plate in sequence. The vertical projection of the first receiving inclined plate is a rectangle, and one side wall of the first receiving inclined plate is against the left inner wall of the crushing box. The vertical projection of the second receiving inclined plate is a rectangle, and one side wall of the second receiving inclined plate is against the left and right inner walls of the crushing box. The vertical projection of the third receiving inclined plate is a rectangle, and one side wall of the third receiving inclined plate is against the left inner wall of the crushing box. The vertical projection of the fourth receiving inclined plate is a rectangle, and one side wall of the fourth receiving inclined plate is against the right inner wall of the crushing box.
9. The waste concrete recycling device according to claim 8, characterized in that: A side wall of the second receiving inclined plate extends to the bottom of the first receiving inclined plate and is provided with a baffle upwards, and a side wall of the fourth receiving inclined plate extends to the bottom of the third receiving inclined plate and is provided with a baffle upwards.
10. The waste concrete recycling device according to claim 1, characterized in that: A curtain is also provided at the bottom of the top wall of the drying box or the bottom of the inclined plate above each layer of inclined plates at the outlet of the drying box.