A waste concrete crushing device for concrete processing

Abstract

The present invention discloses a waste concrete crushing device for concrete processing, which relates to the technical field of crushing equipment, including a crushing tank and a control device arranged on the crushing tank. The interior of the crushing tank is divided into an air inlet area, a crushing area and a grading area from bottom to top, and also includes a crushing mechanism for crushing concrete blocks, an air supply mechanism for sending crushed concrete particles into the grading area, and a separation mechanism for separating the crushed concrete particles. By providing a cleaning mechanism, the device can automatically remove large-particle concrete particles attached to the surface of the classification cover, avoiding the situation where small-particle concrete particles cannot pass through the classification holes on the classification cover due to excessive concrete particles attached to the surface of the classification cover. The removed large-particle concrete particles can fall onto the crushing grinding disc in the crushing area below and be crushed again until they meet the requirements, greatly improving the crushing effect of the device on concrete blocks.

Description

Technical Field

[0001] The present invention relates to the technical field of crushing equipment, and in particular to a waste concrete crushing equipment for concrete processing. Background Art

[0002] At present, with the rapid development of the construction industry, concrete, as one of the most widely used building materials, will produce a large amount of waste concrete during the construction process. If these waste concretes are directly landfilled, it will not only occupy a large amount of land resources, but may also cause environmental pollution. Crushing and reusing waste concrete to make recycled aggregates for new concrete production and other fields is an important way to achieve resource recycling and promote the development of green buildings. Therefore, waste concrete crushing equipment plays a key role in the industry.

[0003] However, the common waste concrete crushing equipment currently on the market has obvious technical defects. During the crushing process, the existing equipment usually sets a classification cover to screen the crushed concrete particles to separate particles that meet the particle size requirements. However, in actual use, due to the complex composition of the waste concrete, the large-particle concrete particles produced by crushing are very easy to adhere to the surface of the classification cover. As the working time increases, more and more large-particle concrete particles adhere to the surface of the classification cover, which will block the classification holes on the classification cover. Once the classification holes are blocked, small-particle concrete particles cannot pass through the classification holes smoothly, resulting in the inability to effectively separate qualified particles, reducing the processing efficiency of the equipment. In addition, the large-particle concrete particles intercepted on the surface of the classification cover cannot be processed in time and cannot return to the crushing area for further crushing, which greatly reduces the crushing effect of the waste concrete and makes it difficult to meet the particle size requirements of the recycled aggregate. In order to ensure the normal operation of the equipment, the operator needs to stop the machine frequently and manually clean the large-particle concrete particles on the surface of the classification cover, resulting in poor crushing effect and low production efficiency of the existing crushing equipment, which is in urgent need of improvement. Summary of the Invention

[0004] In view of the shortcomings of the existing technology, the purpose of the present invention is to provide a waste concrete crushing equipment for concrete processing, aiming to solve the above technical problems.

[0005] In order to achieve the above object, the present invention adopts the following technical solutions:

[0006] A waste concrete crushing device for concrete processing, comprising a crushing tank and a control device arranged on the crushing tank, wherein the interior of the crushing tank is divided into an air inlet area, a crushing area and a classification area from bottom to top, the crushing tank is provided with a feed pipe connected to the crushing area, the crushing tank is provided with a discharge pipe connected to the classification area, the crushing tank is provided with a plurality of evenly distributed air inlets connected to the air inlet area, the crushing area is provided with an expansion pipe fixedly connected to the inner wall of the crushing tank, the inner wall of the expansion pipe is fixedly provided with a plurality of evenly distributed connecting blocks, the expansion pipe is provided with an expansion cover fixedly connected to the connecting block, the inner wall of the expansion pipe and the outer wall of the expansion cover form a ventilation area, and further comprising:

[0007] A crushing mechanism is provided on the crushing tank and is electrically connected to the control device, and is used to crush the concrete blocks;

[0008] an air supply mechanism, located in the air inlet area and electrically connected to the control device, the air supply mechanism being used to deliver the crushed concrete particles into the grading area;

[0009] The separation mechanism is provided on the crushing tank and is electrically connected to the control device. The separation mechanism is used to separate the crushed concrete particles.

[0010] Preferably, the pulverizing mechanism comprises:

[0011] An annular carrier plate is fixedly arranged in the expansion housing, and a plurality of evenly distributed balls are provided on the surface of the annular carrier plate away from the air inlet area for rolling;

[0012] A crushing millstone is placed on the ball bearing and is rotatably connected to the expansion housing. The space formed by the crushing millstone and the expansion housing is a heat-insulating chamber. The crushing millstone is used to carry concrete blocks entering the crushing area.

[0013] A rotating part is provided on the expansion housing and is electrically connected to the control device, and is used to drive the grinding disc to rotate;

[0014] The crushing parts have three groups, and the three groups of crushing parts are evenly arranged on the crushing tank. The crushing parts are electrically connected to the control device and are used to cooperate with the crushing grinding disc to crush concrete blocks.

[0015] Preferably, the rotating part includes:

[0016] A rotating motor is fixedly mounted on the expansion housing and electrically connected to the control device;

[0017] A rotating shaft is rotatably disposed on the expansion housing, and one end of the rotating shaft close to the rotating motor is fixedly connected to the output end of the rotating motor, and one end of the rotating shaft close to the grinding disc is fixedly connected to the grinding disc;

[0018] The first motor cover is fixedly arranged on the expansion cover.

[0019] Preferably, the crushing unit includes:

[0020] A pulverizing motor is fixedly mounted on the pulverizing tank and electrically connected to the control device;

[0021] A crushing shaft is rotatably mounted on the crushing tank, and one end of the crushing shaft close to the crushing motor is fixedly connected to the output end of the crushing motor;

[0022] A crushing grinding roller is fixedly arranged at one end of the crushing shaft extending into the crushing zone, and is used to cooperate with the crushing grinding disc to crush the concrete blocks;

[0023] The second motor cover is fixedly arranged on the crushing tank.

[0024] Preferably, the air supply mechanism includes:

[0025] An air supply duct is fixedly arranged at one end of the expanded pipe close to the air inlet area, and the interior of the air supply duct is connected to the ventilation area;

[0026] A ventilation carrier plate is fixedly arranged in the air supply duct, an air supply motor electrically connected to the control device is fixedly arranged on the ventilation carrier plate, and an air supply blade is fixedly arranged on the output end of the air supply motor.

[0027] Preferably, a heater electrically connected to the control device is fixedly provided on the inner wall of the expanded tube, and the heater is used to heat the gas in the ventilation area.

[0028] Preferably, the separation mechanism comprises:

[0029] A classification cover is located in the classification area and is fixedly connected to the inner wall of the crushing tank. A plurality of evenly distributed classification holes are opened on the surface of the classification cover. A plurality of distributed first leakage grooves are opened through the surface of the classification cover close to the air inlet area. A plurality of evenly distributed arc grooves are opened on the surface of the classification cover away from the air inlet area.

[0030] A conical cone is fixedly arranged inside the classification cover, and the axis of the conical cone coincides with the axis of the classification cover;

[0031] A return hood is fixedly arranged at one end of the classification hood away from the discharge pipe, and is used to return the concrete particles leaking from the first leakage trough;

[0032] a grading unit, provided on the crushing tank and electrically connected to the control device, the grading unit being used to grade the concrete particles entering the classification cover;

[0033] a cleaning unit, provided on the classification cover, for cleaning concrete particles attached to the surface of the classification cover;

[0034] The transmission part is located in the crushing area and is used to provide power for the cleaning part.

[0035] Preferably, the classification unit includes:

[0036] a grading motor, disposed on the crushing tank and electrically connected to the control device;

[0037] A grading shaft is rotatably mounted on the crushing tank, and one end of the grading shaft close to the grading motor is fixedly connected to the output end of the grading motor;

[0038] The conical grading cover is fixedly arranged on the end of the grading shaft away from the grading motor, and the end of the conical grading cover with a smaller diameter extends into the grading cover.

[0039] Preferably, the cleaning unit comprises:

[0040] An annular ring is located in the classification area, and a plurality of evenly distributed cleaning plates are fixedly provided on the inner surface of the annular ring, and the cleaning plates are used to clean concrete particles attached to the surface of the classification cover;

[0041] An arc-shaped rod, fixedly disposed in the arc-shaped groove;

[0042] There are multiple linkage blocks, and the multiple linkage blocks are evenly arranged on the annular ring. The end of the linkage block close to the discharge pipe extends into the arc groove. The linkage block is slidably connected to the arc rod. The end of the linkage block away from the discharge pipe is fixedly provided with a hemispherical protrusion;

[0043] There are two first springs, which are sleeved on the arc rod and symmetrically distributed on both sides of the linkage block.

[0044] Preferably, the transmission part includes:

[0045] A support column is fixedly mounted on the grinding disc, and the axis of the support column coincides with the axis of the grinding disc;

[0046] A transmission disc is fixedly arranged at one end of the support column close to the discharge pipe, and the axis of the transmission disc coincides with the axis of the support column. A plurality of evenly distributed built-in grooves are opened on the surface of the transmission disc, a plurality of evenly distributed second leakage grooves are opened through the surface of the transmission disc, and a plurality of evenly distributed third leakage grooves are opened through the surface of the transmission disc;

[0047] A sliding protrusion is slidably arranged in the built-in groove;

[0048] The second spring is arranged in the built-in groove, and the second spring is always in a compressed state. The elastic coefficient of the second spring is greater than the elastic coefficient of the first spring.

[0049] In summary, due to the adoption of the above technical solution, the beneficial effects of the present invention are:

[0050] 1. By providing a cleaning mechanism, the device can automatically remove large concrete particles attached to the surface of the classification cover, thereby avoiding the situation where small concrete particles cannot pass through the classification holes on the classification cover due to excessive concrete particles attached to the surface of the classification cover. The removed large concrete particles can fall onto the crushing grinding disc in the crushing area below and be crushed again until they meet the requirements, thereby greatly improving the crushing effect of the device on concrete blocks.

[0051] 2. By providing an air supply mechanism, the device can transport the crushed concrete particles to the grading area. Through the cooperation of the air supply mechanism and the heater, the concrete blocks on the grinding disc and the crushed concrete particles can also be dried, thereby improving the subsequent processing efficiency of the concrete particles. BRIEF DESCRIPTION OF THE DRAWINGS

[0052] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for use in describing the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0053] Figure 1 The present invention shows a three-dimensional structural schematic diagram of a waste concrete crushing device for concrete processing.

[0054] Figure 2 A front view of a waste concrete crushing device for concrete processing is shown.

[0055] Figure 3 Shown Figure 2 Cross-sectional view of AA in the figure.

[0056] Figure 4 Shown Figure 3 A magnified schematic diagram of the local structure at point A.

[0057] Figure 5 A side view of a waste concrete crushing device for concrete processing is shown.

[0058] Figure 6 Shown Figure 5 Cross-sectional view of the BB.

[0059] Figure 7 The present invention shows a bottom-up perspective structural diagram of a waste concrete crushing device for concrete processing.

[0060] Figure 8 A partial structural exploded view of a waste concrete crushing device for concrete processing is shown.

[0061] Legend:

[0062] 1. Crushing tank; 2. Control device; 3. Air inlet area; 4. Crushing area; 5. Classification area; 6. Feed pipe; 7. Discharge pipe; 8. Air inlet; 9. Expanding pipe; 10. Connecting block; 11. Expanding cover; 12. Ventilation area; 13. Annular carrier plate; 14. Ball bearing; 15. Crushing disc; 16. Insulation chamber; 17. Rotating motor; 18. Rotating shaft; 19. First motor cover; 20. Crushing motor; 21. Crushing shaft; 22. Crushing roller; 23. Second motor cover; 24. Air supply duct; 25. Ventilation carrier plate; 26. Wind motor; 27. Air supply blade; 28. Heater; 29. ​​Classification cover; 30. Classification hole; 31. First leakage groove; 32. Arc groove; 33. Conical cone; 34. Return cover; 35. Classification motor; 36. Classification shaft; 37. Conical classification cover; 38. Annular ring; 39. Cleaning plate; 40. Arc rod; 41. Linking block; 42. Hemispherical protrusion; 43. First spring; 44. Support column; 45. Transmission plate; 46. Built-in groove; 47. Second leakage groove; 48. Third leakage groove; 49. Sliding protrusion; 50. Second spring. DETAILED DESCRIPTION

[0063] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. 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 making any creative efforts shall fall within the scope of protection of the present invention.

[0064] In the description of the present invention, it should be understood that the terms "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention.

[0065] It should be noted that when a component is referred to as being "fixed to" another component, it may be directly on the other component or there may also be a central component. When a component is considered to be "connected to" another component, it may be directly connected to the other component or there may also be a central component. When a component is considered to be "set on" another component, it may be directly set on the other component or there may also be a central component. The terms "vertical", "horizontal", "left", "right" and similar expressions used herein are for illustrative purposes only.

[0066] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of the technical features being referred to. Thus, a feature identified as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, "plurality" means two or more, unless otherwise specifically defined.

[0067] Reference Figures 1 to 8 An embodiment of a waste concrete crushing device for concrete processing according to the present invention is further described.

[0068] A waste concrete crushing device for concrete processing includes a crushing tank 1 and a control device 2 arranged on the crushing tank 1. The interior of the crushing tank 1 is divided into an air inlet area 3, a crushing area 4 and a grading area 5 from bottom to top. The crushing tank 1 is provided with a feeding pipe 6 connected to the crushing area 4, and the crushing tank 1 is provided with a discharge pipe 7 connected to the grading area 5. The crushing tank 1 is provided with a plurality of evenly distributed air inlets 8 connected to the air inlet area 3. A flared pipe 9 fixedly connected to the inner wall of the crushing tank 1 is provided in the crushing area 4. A heater 28 electrically connected to the control device 2 is fixedly provided on the inner wall of the flared pipe 9. The heater 28 is used to heat the gas in the ventilation area 12. It should be noted that by providing the heater 28, the heater 28 can heat the airflow passing through the ventilation area 12, so that the heated airflow can dry the concrete particles, which is beneficial to the subsequent processing of the concrete particles. At the same time, the setting of the heater 28 also heats the insulation chamber 16, so that the insulation chamber 16 can preliminarily dry the concrete blocks on the crushing grinding disc 15. The inner wall of the flared tube 9 is fixedly provided with a plurality of evenly distributed connecting blocks 10, and the flared tube 9 is provided with an flared cover 11 fixedly connected to the connecting blocks 10. The inner wall of the flared tube 9 and the outer wall of the flared cover 11 form a ventilation area 12, and further include:

[0069] The crushing mechanism is provided on the crushing tank 1 and is electrically connected to the control device 2. The crushing mechanism is used to crush the concrete blocks. The crushing mechanism includes:

[0070] The annular carrier plate 13 is fixedly arranged in the expansion housing 11, and a plurality of evenly distributed balls 14 are rollingly arranged on the surface of the annular carrier plate 13 away from the air inlet area 3; it should be noted that by providing the annular carrier plate 13, the annular carrier plate 13 can provide support for the crushing grinding disc 15, thereby avoiding to a certain extent the deformation of the crushing grinding disc 15 caused by long-term bearing of concrete on the crushing grinding disc 15. At the same time, the provision of the balls 14 greatly reduces the resistance encountered by the crushing grinding disc 15 during rotation, and to a certain extent improves the smoothness of the rotation of the crushing grinding disc 15.

[0071] The grinding disc 15 is placed on the ball bearing 14 and is rotatably connected to the expansion housing 11. The space formed by the grinding disc 15 and the expansion housing 11 is a heat preservation chamber 16. The grinding disc 15 is used to carry the concrete blocks entering the grinding zone 4.

[0072] The rotating part is provided on the expansion housing 11 and is electrically connected to the control device 2. The rotating part is used to drive the grinding disc 15 to rotate. The rotating part includes:

[0073] The rotating motor 17 is fixedly mounted on the expansion housing 11 and electrically connected to the control device 2;

[0074] The rotating shaft 18 is rotatably disposed on the expansion housing 11, and one end of the rotating shaft 18 close to the rotating motor 17 is fixedly connected to the output end of the rotating motor 17, and one end of the rotating shaft 18 close to the grinding disc 15 is fixedly connected to the grinding disc 15;

[0075] The first motor cover 19 is fixedly mounted on the expansion cover 11 .

[0076] The crushing unit has three groups, and the three groups of crushing units are evenly arranged on the crushing tank 1. The crushing unit is electrically connected to the control device 2. The crushing unit is used to cooperate with the crushing grinding disc 15 to crush the concrete block. The crushing unit includes:

[0077] The crushing motor 20 is fixedly mounted on the crushing tank 1 and electrically connected to the control device 2;

[0078] The crushing shaft 21 is rotatably mounted on the crushing tank 1, and one end of the crushing shaft 21 close to the crushing motor 20 is fixedly connected to the output end of the crushing motor 20;

[0079] The grinding roller 22 is fixedly arranged at one end of the grinding shaft 21 extending into the grinding zone 4. The grinding roller 22 is used to cooperate with the grinding disc 15 to grind the concrete blocks.

[0080] The second motor cover 23 is fixedly mounted on the crushing tank 1 .

[0081] During operation, the concrete blocks to be crushed are fed through the feed pipe 6 so that the concrete blocks to be crushed enter the crushing grinding disc 15 of the crushing area 4, and then the rotating motor 17 and the crushing motor 20 are started through the control device 2. The start of the rotating motor 17 causes the rotating shaft 18 fixedly connected to the output end of the rotating motor 17 to rotate, thereby driving the crushing grinding disc 15 fixedly connected to the rotating shaft 18 to rotate; the rotation of the crushing motor 20 causes the crushing shaft 21 fixedly connected to the output end of the crushing motor 20 to rotate, thereby driving the crushing grinding roller 22 fixedly connected to the crushing shaft 21 to rotate. Through the cooperation between the crushing grinding roller 22 and the crushing grinding disc 15, the concrete blocks on the crushing grinding disc 15 are subjected to extrusion force and shear force and are crushed into large and small concrete particles.

[0082] The air supply mechanism is located in the air inlet area 3 and is electrically connected to the control device 2. The air supply mechanism is used to send the crushed concrete particles into the classification area 5. The air supply mechanism includes:

[0083] The air supply duct 24 is fixedly arranged at one end of the expanded pipe 9 close to the air inlet area 3, and the interior of the air supply duct 24 is connected to the ventilation area 12;

[0084] The ventilation carrier plate 25 is fixedly arranged in the air supply duct 24 . An air supply motor 26 electrically connected to the control device 2 is fixedly arranged on the ventilation carrier plate 25 . An air supply blade 27 is fixedly arranged on the output end of the air supply motor 26 .

[0085] After the concrete blocks are crushed into large and small concrete particles, the heater 28 is activated by the control device 2. The activation of the heater 28 increases the temperature in the ventilation zone 12. The control device 2 then controls the air supply motor 26 to start, thereby causing the air supply blades 27 fixedly connected to the output end of the air supply motor 26 to rotate around the axis of the output end of the air supply motor 26. The air supply blades 27 then continuously supply air to the crushing zone 4 through the air supply duct 24 and the ventilation zone 12. The setting of the heater 28 increases the temperature of the air flow entering the crushing zone 4, and the air flow entering the crushing zone 4 drives the concrete particles to move toward the classification zone 5.

[0086] It should be noted that, by providing an air supply mechanism, the device can transport the crushed concrete particles to the grading area 5. Through the cooperation of the air supply mechanism and the heater 28, the concrete blocks on the grinding disc 15 and the crushed concrete particles can also be dried, thereby improving the subsequent processing efficiency of the concrete particles.

[0087] The separation mechanism is provided on the crushing tank 1 and is electrically connected to the control device 2. The separation mechanism is used to separate the crushed concrete particles. The separation mechanism includes:

[0088] A classification cover 29 is located in the classification area 5 and is fixedly connected to the inner wall of the crushing tank 1. A plurality of evenly distributed classification holes 30 are formed on the surface of the classification cover 29. A plurality of distributed first leakage slots 31 are formed through the surface of the classification cover 29 near the air inlet area 3. A plurality of evenly distributed arcuate slots 32 are formed on the surface of the classification cover 29 away from the air inlet area 3.

[0089] It should be noted that, by providing the first leakage groove 31 , the concrete particles in the classification cover 29 that have not passed through the conical classification cover 37 can leak out through the first leakage groove 31 .

[0090] The conical cone 33 is fixedly provided inside the classification cover 29, and the axis of the conical cone 33 coincides with the axis of the classification cover 29. By providing the conical cone 33, the concrete particles in the classification cover 29 that have not passed through the conical classification cover 37 can move toward the first leakage groove 31, thereby facilitating the concrete particles that have not passed through the conical classification cover 37 to leak out through the first leakage groove 31.

[0091] The return hood 34 is fixedly provided at the end of the classification hood 29 away from the discharge pipe 7. The return hood 34 is used to return the concrete particles leaking out of the first trough 31. By providing the return hood 34, the concrete particles leaking out of the first trough 31 can move to the third trough 48.

[0092] The grading unit is provided on the crushing tank 1 and is electrically connected to the control device 2. The grading unit is used to classify the concrete particles entering the classification cover 29. The grading unit includes:

[0093] The classifying motor 35 is provided on the crushing tank 1 and is electrically connected to the control device 2;

[0094] The grading shaft 36 is rotatably mounted on the crushing tank 1, and one end of the grading shaft 36 close to the grading motor 35 is fixedly connected to the output end of the grading motor 35;

[0095] The conical classification cover 37 is fixedly arranged on the end of the classification shaft 36 away from the classification motor 35 , and the end of the conical classification cover 37 with a smaller diameter extends into the classification cover 29 .

[0096] When the concrete block is crushed into concrete particles, the control device 2 controls the grading motor 35 to start, so that the grading shaft 36 fixedly connected to the output end of the grading motor 35 rotates, thereby driving the conical grading cover 37 fixedly connected to the grading shaft 36 to rotate, so that the concrete particles entering the grading area 5 pass through the classification cover 29 and enter the interior of the classification cover 29. The concrete particles entering the interior of the classification cover 29 are graded and screened by the conical grading cover 37, so that the concrete particles that meet the size requirements pass through the conical grading cover 37 and enter the discharge pipe 7 to be discharged from the crushing tank 1 and enter the subsequent processing steps. The concrete particles that do not pass the screening of the conical grading cover 37 fall into the crushing grinding disc 15 of the crushing area 4 below through the first leakage groove 31 and the third leakage groove 48 in turn and are crushed again. This reciprocating process completes the crushing process of the concrete block by this device.

[0097] The cleaning unit is provided on the classification cover 29 and is used to clean the concrete particles attached to the surface of the classification cover 29. The cleaning unit includes:

[0098] An annular ring 38 is located in the classification area 5. A plurality of evenly distributed cleaning plates 39 are fixedly provided on the inner surface of the annular ring 38. The cleaning plates 39 are used to clean concrete particles attached to the surface of the classification cover 29.

[0099] The arc-shaped rod 40 is fixedly disposed in the arc-shaped groove 32;

[0100] There are multiple linkage blocks 41, and the multiple linkage blocks 41 are evenly arranged on the annular ring 38. The end of the linkage block 41 close to the discharge pipe 7 extends into the arc groove 32. The linkage block 41 is slidably connected to the arc rod 40. The end of the linkage block 41 away from the discharge pipe 7 is fixedly provided with a hemispherical protrusion 42;

[0101] There are two first springs 43 . The first springs 43 are sleeved on the arc rod 40 , and the two first springs 43 are symmetrically distributed on both sides of the linkage block 41 .

[0102] The transmission part is located in the crushing area 4 and is used to provide power for the cleaning part. The transmission part includes:

[0103] The support column 44 is fixedly mounted on the grinding disc 15, and the axis of the support column 44 coincides with the axis of the grinding disc 15;

[0104] The transmission disc 45 is fixedly arranged on one end of the support column 44 near the discharge pipe 7, and the axis of the transmission disc 45 coincides with the axis of the support column 44. A plurality of evenly distributed built-in grooves 46 are provided on the surface of the transmission disc 45, a plurality of evenly distributed second leakage grooves 47 are provided on the surface of the transmission disc 45, and a plurality of evenly distributed third leakage grooves 48 are provided on the surface of the transmission disc 45. It should be noted that the arrangement of the second leakage grooves 47 enables the large particles of concrete particles removed from the surface of the classification cover 29 to fall onto the crushing grinding disc 15 of the lower crushing zone 4 through the second leakage grooves 47. The arrangement of the third leakage grooves 48 enables the concrete particles that have passed through the first leakage grooves 31 but have not passed through the conical classification cover 37 to fall onto the crushing grinding disc 15 of the lower crushing zone 4 through the third leakage grooves 48, so as to facilitate the subsequent re-crushing of the concrete particles.

[0105] The sliding protrusion 49 is slidably disposed in the built-in groove 46;

[0106] The second spring 50 is disposed in the built-in groove 46 , and the second spring 50 is always in a compressed state. The elastic coefficient of the second spring 50 is greater than the elastic coefficient of the first spring 43 .

[0107] When the grinding millstone 15 rotates, it drives the support column 44 fixedly connected to the grinding millstone 15 to rotate, so that the transmission plate 45 fixedly connected to the support column 44 rotates, thereby causing the sliding protrusion 49 provided on the transmission plate 45 to rotate around the axis of the transmission plate 45. When the sliding protrusion 49 contacts the hemispherical protrusion 42, at this time, since the force of the second spring 50 on the sliding protrusion 49 is greater than the force of the first spring 43 on the linkage block 41, the linkage block 41 is rotated around the axis of the classification cover 29 by a certain angle. When the linkage block 41 rotates around the axis of the classification cover 29 by a certain angle, it drives the annular ring 38 to rotate around the axis of the classification cover 29 by a certain angle, thereby causing the cleaning plate 39 provided on the annular ring 38 to rotate around the axis of the classification cover 29 by a certain angle. When the linkage block 41 rotates around the axis of the classification cover 29 by a certain angle, the linkage block 41 also squeezes the first spring 43 in the rotation direction. When the first spring 43 is squeezed to the point where the force acting on the linkage block 41 is greater than the second spring 5 0 after the force of the sliding protrusion 49 is applied to the sliding protrusion 49, the hemispherical protrusion 42 squeezes the sliding protrusion 49 into the built-in groove 46, so that the hemispherical protrusion 42 can pass through the sliding protrusion 49 in contact with it. When the hemispherical protrusion 42 passes the sliding protrusion 49 in contact with it, the squeezed first spring 43 releases its elastic potential energy, so that the linkage block 41 rotates around the axis of the classification cover 29 in the opposite direction at a certain angle, thereby causing the annular ring 38 to drive the cleaning plate 39 to rotate around the axis of the classification cover 29 in the opposite direction at a certain angle, and so on and so forth. Through the cooperation between the sliding protrusion 49 and the hemispherical protrusion 42, the cleaning plate 39 can reciprocate at a certain angle on the surface of the classification cover 29 around the axis of the classification cover 29, thereby removing the large-particle concrete particles attached to the surface of the classification cover 29, and the removed large-particle concrete particles fall into the crushing grinding disc 15 of the crushing area 4 through the second leakage groove 47 below and are crushed again. This reciprocating process allows the large-particle concrete particles to pass through the conical classification cover 37 and enter the subsequent processing steps;

[0108] It should be noted that, by providing a cleaning mechanism, the device can automatically remove large-particle concrete particles attached to the surface of the classification cover 29, thereby avoiding the situation where too many concrete particles are attached to the surface of the classification cover 29, resulting in small-particle concrete particles being unable to pass through the classification holes 30 on the classification cover 29. The removed large-particle concrete particles can fall onto the crushing grinding disc 15 in the crushing area 4 below and be re-crushed until they meet the requirements, thereby greatly improving the crushing effect of the device on concrete blocks.

[0109] Working principle: During operation, the concrete blocks to be crushed are fed through the feed pipe 6 so that the concrete blocks to be crushed enter the crushing millstone 15 of the crushing area 4. Then, the rotating motor 17 and the crushing motor 20 are started by the control device 2. The start of the rotating motor 17 causes the rotating shaft 18 fixedly connected to the output end of the rotating motor 17 to rotate, thereby driving the crushing millstone 15 fixedly connected to the rotating shaft 18 to rotate; the rotation of the crushing motor 20 causes the crushing shaft 21 fixedly connected to the output end of the crushing motor 20 to rotate, thereby driving the crushing roller 22 fixedly connected to the crushing shaft 21 to rotate. Through the cooperation between the crushing roller 22 and the crushing millstone 15, the concrete blocks on the crushing millstone 15 are subjected to the extrusion force and shear force and are crushed into large and small concrete particles;

[0110] After the concrete blocks are crushed into large and small concrete particles, the heater 28 is activated by the control device 2. The activation of the heater 28 increases the temperature in the ventilation zone 12. The control device 2 then controls the air supply motor 26 to start, thereby causing the air supply blades 27 fixedly connected to the output end of the air supply motor 26 to rotate around the axis of the output end of the air supply motor 26. The air supply blades 27 then continuously supply air to the crushing zone 4 through the air supply duct 24 and the ventilation zone 12. The setting of the heater 28 increases the temperature of the air flow entering the crushing zone 4, and the air flow entering the crushing zone 4 drives the concrete particles to move toward the classification zone 5.

[0111] When the concrete block is crushed into concrete particles, the control device 2 controls the grading motor 35 to start, thereby rotating the grading shaft 36 fixedly connected to the output end of the grading motor 35, thereby driving the conical grading cover 37 fixedly connected to the grading shaft 36 to rotate, so that the concrete particles entering the grading area 5 pass through the classification cover 29 and enter the interior of the classification cover 29. The concrete particles entering the interior of the classification cover 29 are graded and screened by the conical grading cover 37, so that the concrete particles that meet the size requirements pass through the conical grading cover 37 and enter the discharge pipe 7 to be discharged from the crushing tank 1 and enter the subsequent processing steps. The concrete particles that do not pass the screening of the conical grading cover 37 fall into the crushing grinding disc 15 of the lower crushing area 4 through the first trough 31 and the third trough 48 in turn and are crushed again. This reciprocating process completes the crushing process of the concrete block by this device.

[0112] When the grinding millstone 15 rotates, it drives the support column 44 fixedly connected to the grinding millstone 15 to rotate, so that the transmission plate 45 fixedly connected to the support column 44 rotates, thereby causing the sliding protrusion 49 provided on the transmission plate 45 to rotate around the axis of the transmission plate 45. When the sliding protrusion 49 contacts the hemispherical protrusion 42, at this time, since the force of the second spring 50 on the sliding protrusion 49 is greater than the force of the first spring 43 on the linkage block 41, the linkage block 41 is rotated around the axis of the classification cover 29 by a certain angle. When the linkage block 41 rotates around the axis of the classification cover 29 by a certain angle, it drives the annular ring 38 to rotate around the axis of the classification cover 29 by a certain angle, thereby causing the cleaning plate 39 provided on the annular ring 38 to rotate around the axis of the classification cover 29 by a certain angle. When the linkage block 41 rotates around the axis of the classification cover 29 by a certain angle, the linkage block 41 also squeezes the first spring 43 in the rotation direction. When the first spring 43 is squeezed to the point where the force acting on the linkage block 41 is greater than the second spring 5 0 after the force of the sliding protrusion 49 is applied to the sliding protrusion 49, the hemispherical protrusion 42 squeezes the sliding protrusion 49 into the built-in groove 46, so that the hemispherical protrusion 42 can pass through the sliding protrusion 49 in contact with it. When the hemispherical protrusion 42 passes the sliding protrusion 49 in contact with it, the squeezed first spring 43 releases its elastic potential energy, so that the linkage block 41 rotates in the opposite direction around the axis of the classification cover 29 at a certain angle, and then the annular ring 38 drives the cleaning plate 39 to rotate in the opposite direction around the axis of the classification cover 29 at a certain angle, and so on. Through the cooperation of the sliding protrusion 49 and the hemispherical protrusion 42, the cleaning plate 39 can rotate back and forth at a certain angle on the surface of the classification cover 29 around the axis of the classification cover 29, thereby removing the large-particle concrete particles attached to the surface of the classification cover 29, and the removed large-particle concrete particles fall into the crushing grinding disc 15 of the crushing area 4 through the second leakage groove 47 below and are crushed again. So that the large-particle concrete particles can pass through the conical classification cover 37 and enter the subsequent processing steps.

[0113] The above description of the embodiments is intended to enable one skilled in the art to implement or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention is not limited to the embodiments shown herein but is intended to conform to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A waste concrete crushing device for concrete processing, comprising a crushing tank (1) and a control device (2) arranged on the crushing tank (1), characterized in that: The interior of the crushing tank (1) is divided into an air inlet area (3), a crushing area (4) and a classification area (5) from bottom to top. The crushing tank (1) is provided with a feed pipe (6) communicating with the crushing area (4). The crushing tank (1) is provided with a discharge pipe (7) communicating with the classification area (5). The crushing tank (1) is provided with a plurality of evenly distributed air inlets (8) communicating with the air inlet area (3). The crushing area (4) is provided with an expansion pipe (9) fixedly connected to the inner wall of the crushing tank (1). The inner wall of the expansion pipe (9) is fixedly provided with a plurality of evenly distributed connecting blocks (10). The expansion pipe (9) is provided with an expansion cover (11) fixedly connected to the connecting block (10). The inner wall of the expansion pipe (9) and the outer wall of the expansion cover (11) form a ventilation area (12). The invention also includes: A crushing mechanism is provided on the crushing tank (1) and is electrically connected to the control device (2), the crushing mechanism being used to crush the concrete block, and the crushing mechanism comprising a crushing grinding disc (15); An air supply mechanism is located in the air inlet area (3) and is electrically connected to the control device (2), and is used to send the crushed concrete particles into the classification area (5); A separation mechanism is provided on the crushing tank (1) and is electrically connected to the control device (2), the separation mechanism being used to separate the crushed concrete particles; The separation mechanism comprises: A classification cover (29) is located in the classification area (5) and is fixedly connected to the inner wall of the crushing tank (1). A plurality of evenly distributed classification holes (30) are provided on the surface of the classification cover (29). A plurality of distributed first leakage grooves (31) are provided through the surface of the classification cover (29) close to the air inlet area (3). A plurality of evenly distributed arc grooves (32) are provided on the surface of the classification cover (29) away from the air inlet area (3). A conical cone (33) is fixedly arranged inside the classification cover (29), and the axis of the conical cone (33) coincides with the axis of the classification cover (29); A return hood (34) is fixedly arranged at one end of the classification hood (29) away from the discharge pipe (7), and the return hood (34) is used to return concrete particles leaking from the first leakage trough (31); a grading unit, provided on the crushing tank (1) and electrically connected to the control device (2), the grading unit being used to grade the concrete particles entering the classification cover (29); a cleaning portion, disposed on the classification cover (29), the cleaning portion being used to clean concrete particles attached to the surface of the classification cover (29); A transmission part, located in the crushing area (4), the transmission part is used to provide power for the cleaning part; The cleaning unit includes: An annular ring (38) is located in the classification area (5), and a plurality of evenly distributed cleaning plates (39) are fixedly provided on the inner surface of the annular ring (38), and the cleaning plates (39) are used to clean concrete particles attached to the surface of the classification cover (29); An arc-shaped rod (40) is fixedly disposed in the arc-shaped groove (32); There are multiple linkage blocks (41), and the multiple linkage blocks (41) are evenly arranged on the annular ring (38), the end of the linkage block (41) close to the discharge pipe (7) extends into the arc groove (32), the linkage block (41) is slidably connected to the arc rod (40), and the end of the linkage block (41) away from the discharge pipe (7) is fixedly provided with a hemispherical protrusion (42); There are two first springs (43), wherein the first springs (43) are sleeved on the arc-shaped rod (40), and the two first springs (43) are symmetrically distributed on both sides of the linkage block (41); The transmission part includes: A support column (44) is fixedly mounted on the grinding disc (15), and the axis of the support column (44) coincides with the axis of the grinding disc (15); A transmission disc (45) is fixedly arranged at one end of the support column (44) close to the discharge pipe (7), and the axis of the transmission disc (45) coincides with the axis of the support column (44); a plurality of evenly distributed built-in grooves (46) are opened on the surface of the transmission disc (45); a plurality of evenly distributed second leakage grooves (47) are opened through the surface of the transmission disc (45); and a plurality of evenly distributed third leakage grooves (48) are opened through the surface of the transmission disc (45); A sliding protrusion (49) is slidably disposed in the built-in groove (46); The second spring (50) is disposed in the built-in groove (46), and the second spring (50) is always in a compressed state. The elastic coefficient of the second spring (50) is greater than the elastic coefficient of the first spring (43).

2. The waste concrete crushing equipment for concrete processing according to claim 1, characterized in that: The crushing mechanism comprises: An annular carrier plate (13) is fixedly arranged in the expansion housing (11), and a plurality of evenly distributed balls (14) are rollingly arranged on a surface of the annular carrier plate (13) away from the air inlet area (3); A crushing millstone (15) is placed on the ball bearing (14) and is rotatably connected to the expansion housing (11). The space formed by the crushing millstone (15) and the expansion housing (11) is a heat-insulating chamber (16). The crushing millstone (15) is used to carry concrete blocks entering the crushing zone (4). A rotating part is provided on the expansion housing (11) and is electrically connected to the control device (2), and the rotating part is used to drive the grinding disc (15) to rotate; The crushing parts have three groups, and the three groups of crushing parts are evenly arranged on the crushing tank (1). The crushing parts are electrically connected to the control device (2). The crushing parts are used to cooperate with the crushing grinding disc (15) to crush concrete blocks.

3. The waste concrete crushing equipment for concrete processing according to claim 2, characterized in that: The rotating part includes: A rotating motor (17) is fixedly mounted on the expansion housing (11) and electrically connected to the control device (2); A rotating shaft (18) is rotatably mounted on the expansion housing (11), and one end of the rotating shaft (18) close to the rotating motor (17) is fixedly connected to the output end of the rotating motor (17), and one end of the rotating shaft (18) close to the grinding disc (15) is fixedly connected to the grinding disc (15); The first motor cover (19) is fixedly arranged on the expansion cover (11).

4. The waste concrete crushing equipment for concrete processing according to claim 3, characterized in that: The crushing unit includes: A pulverizing motor (20) is fixedly mounted on the pulverizing tank (1) and electrically connected to the control device (2); A crushing shaft (21) is rotatably mounted on the crushing tank (1), and one end of the crushing shaft (21) close to the crushing motor (20) is fixedly connected to the output end of the crushing motor (20); a crushing grinding roller (22) fixedly arranged at one end of the crushing shaft (21) extending into the crushing zone (4), the crushing grinding roller (22) being used to cooperate with the crushing grinding disc (15) to crush the concrete block; The second motor cover (23) is fixedly mounted on the crushing tank (1).

5. The waste concrete crushing equipment for concrete processing according to claim 4, characterized in that: The air supply mechanism comprises: An air supply duct (24) is fixedly arranged at one end of the expanded pipe (9) close to the air inlet area (3), and the interior of the air supply duct (24) is communicated with the ventilation area (12); A ventilation carrier plate (25) is fixedly arranged in the air supply duct (24); an air supply motor (26) electrically connected to the control device (2) is fixedly arranged on the ventilation carrier plate (25); and an air supply blade (27) is fixedly arranged on the output end of the air supply motor (26).

6. The waste concrete crushing equipment for concrete processing according to claim 5, characterized in that: A heater (28) electrically connected to the control device (2) is fixedly provided on the inner wall of the expanded tube (9), and the heater (28) is used to heat the gas in the ventilation area (12).

7. The waste concrete crushing equipment for concrete processing according to claim 6, characterized in that: The classification unit includes: A grading motor (35) is provided on the crushing tank (1) and is electrically connected to the control device (2); A grading shaft (36) is rotatably mounted on the crushing tank (1), and one end of the grading shaft (36) close to the grading motor (35) is fixedly connected to the output end of the grading motor (35); The conical grading cover (37) is fixedly arranged on the end of the grading shaft (36) away from the grading motor (35), and the end of the conical grading cover (37) with a smaller diameter extends into the grading cover (29).

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