A waste recycling device in concrete production

Abstract

The application relates to a waste recycling equipment in concrete production and belongs to the technical field of waste recycling equipment. The waste recycling equipment comprises a rack, a crushing mechanism and a cleaning mechanism. The cleaning mechanism comprises a temporary storage part for temporarily storing materials, a cleaning cylinder for cleaning the materials, a cleaning driving part for driving the cleaning liquid and the materials in the cleaning cylinder to rotate, and a discharging assembly for discharging the cleaned materials in the cleaning cylinder. The application carries out multi-stage crushing treatment on the waste concrete through the crushing mechanism, temporarily stores the crushed materials through the temporary storage part, discharges the crushed materials into the cleaning cylinder, drives the cleaning liquid and the materials in the cleaning cylinder to clean and grind through the cleaning driving part, discharges the impurities and the cleaning liquid through the discharging assembly, removes the loose particles and the weak layer on the surface of the crushed materials, adjusts the particle size and shape of the materials, and finally improves the quality of the waste concrete crushing recycling products.

Description

Technical Field

[0001] This application relates to the technical field of waste recycling equipment, and in particular to a waste recycling and reuse equipment in concrete production. Background Technology

[0002] With the acceleration of urbanization, the demand for concrete in the construction industry is constantly increasing, resulting in a growing amount of waste concrete. How to effectively dispose of this waste has become an urgent problem. Currently, many companies mainly resort to directly discarding or landfilling the waste, which not only wastes resources but also seriously pollutes the environment. In recent years, some research institutions and enterprises have made some progress in exploring the recycling and reuse of waste, but many challenges remain.

[0003] The existing method for recycling waste concrete mainly uses physical crushing, which involves using large crushers to crush waste concrete in multiple stages to break it into particles of a certain size, which can then be reused as aggregate. This method is simple, easy to implement, and suitable for large-scale industrial production.

[0004] However, due to the diverse sources of waste concrete, its composition and physical properties may vary greatly. Furthermore, when waste concrete is crushed and recycled, the surface of the final product is prone to having a large number of loose particles and microcracks, which increases porosity and water absorption. Ultimately, this greatly reduces the quality of the recycled waste concrete, making it unsuitable for reuse as aggregate. Summary of the Invention

[0005] In order to improve the quality of the finished product from the crushing and recycling of waste concrete, this application provides a waste recycling and reuse device for concrete production.

[0006] This application provides a waste recycling and reuse device for concrete production, which adopts the following technical solution: A waste recycling and reuse device for concrete production includes a frame, on which a crushing mechanism for multi-stage crushing of waste concrete is mounted, and on which a cleaning mechanism for cleaning the material discharged from the crushing mechanism is mounted, the cleaning mechanism comprising: A temporary storage component, which is mounted on the frame and used to temporarily store the material discharged from the crushing mechanism; A cleaning cylinder is mounted on a frame, and a cleaning solution is used inside the cleaning cylinder to clean the material discharged from the temporary storage component. A cleaning drive unit is mounted on a cleaning cylinder and is used to drive the cleaning liquid and materials inside the cleaning cylinder to rotate and clean and grind the materials. A discharge assembly is mounted on the frame and is used to discharge the cleaned material from the washing drum.

[0007] By adopting the above technical solution, the crushing mechanism performs multi-stage crushing of waste concrete. The crushed material is temporarily stored through a temporary storage component, and then a certain amount of the crushed material is discharged into the washing drum. The washing drive component drives the washing liquid and material in the washing drum to clean and grind. The discharge component discharges the impurities and washing liquid, thereby removing loose particles and weak layers from the surface of the crushed material. At the same time, the particle size and shape of the material are adjusted, ultimately improving the quality of the waste concrete crushing and recycling product.

[0008] Furthermore, the cleaning cylinder is provided with multiple sets of protrusions at intervals, and the protrusions are provided with grinding discs for friction and grinding of the material. The cleaning cylinder is provided with multiple sets of water spraying elements at intervals, and the water spraying elements are used to spray high-pressure water flow and impact the surface of the material.

[0009] By adopting the above technical solution, when the cleaning liquid and material in the cleaning drum rotate, the material rubs against the grinding discs on the protrusions, while the water spraying component sprays high-pressure water jets, which impact the surface of the rotating material, thereby improving the cleaning and grinding effect of the material.

[0010] Furthermore, the cleaning drive includes: A rotating disc is rotatably mounted on the bottom of the cleaning cylinder and is used to drive the cleaning liquid and materials inside the cleaning cylinder to rotate. A cleaning drive motor is mounted on the cleaning drum and is used to drive the rotating disc to rotate. A controller is mounted on the cleaning drum and is used to control the intermittent forward and reverse rotation of the cleaning drive motor.

[0011] By adopting the above technical solution, the controller controls the cleaning drive motor to rotate intermittently in both directions, which in turn drives the rotating disk to rotate intermittently in both directions. This, in turn, causes the cleaning liquid and materials in the cleaning cylinder to rotate intermittently in both directions, thereby improving the cleaning and grinding effect on the materials.

[0012] Furthermore, an overflow port is provided on the outer wall of the cleaning cylinder, and a guide pipe is provided on the outer wall of the cleaning cylinder. The guide pipe is used to discharge the cleaning fluid and floating debris flowing out of the overflow port. A guide member is provided on the outer wall of the cleaning cylinder near the top to guide the floating debris into the overflow port. The guide member includes: An inlet plate is provided on the side wall of the cleaning cylinder and is used to guide floating objects to the overflow port when the cleaning liquid rotates in the forward direction. The inlet plate has a mesh structure. A backflow preventer is provided on the side wall of the cleaning cylinder and is used to prevent floating objects at the overflow port from moving away from the overflow port when the cleaning fluid reverses. The backflow preventer has a mesh structure.

[0013] By adopting the above technical solution, when the cleaning fluid in the cleaning cylinder rotates in the forward direction, the guide plate directs the floating matter to the overflow port. When the cleaning fluid in the cleaning cylinder rotates in the reverse direction, the backflow plate prevents the floating matter at the overflow port from moving away from the overflow port. At the same time, the mesh structure of the guide plate and the backflow plate allows the cleaning fluid to pass through normally. Finally, the floating matter floating on the cleaning fluid escapes from the overflow port along with part of the cleaning fluid, thereby reducing the content of light substances in the material.

[0014] Furthermore, the discharge assembly includes: A tilting plate is rotatably mounted on the frame, and a washing cylinder is mounted on the tilting plate and pours out its internal material as the tilting plate rotates. A tilting motor, which is mounted on the frame and is used to drive the tilting plate to rotate; The finished product conveyor belt is mounted on the frame and is used to discharge the material poured out of the washing cylinder. The finished product conveyor belt adopts a screen structure and is used to filter out small particulate matter. A discharge component, which is mounted on the frame and is used to discharge small particulate matter and cleaning liquid filtered out by the finished product conveyor belt.

[0015] By adopting the above technical solution, after the washing drum finishes washing the material, the flipping motor drives the flipping plate to rotate slowly, so that the washing drum is flipped at a certain angle, so that the material and washing liquid in the washing drum are poured into the finished product conveyor belt. The finished product conveyor belt with screen structure transports away the large particles of material, while the small particles of debris and washing liquid pass through the finished product conveyor belt into the discharge device and are discharged, thereby completing the separation of the finished product from the debris.

[0016] Furthermore, the frame is equipped with a rinsing assembly for rinsing the material on the finished product conveyor belt, the rinsing assembly comprising: A leveling frame is mounted on the machine frame, and the finished product conveyor belt passes through the leveling frame. A scraper is mounted on a leveling frame, and the scraper and the leveling frame cooperate with each other to level the material on the finished product conveyor belt. The nozzle is mounted on the frame and located above the finished product conveyor belt. The nozzle is used to spray water onto the finished product conveyor belt and flush impurities adhering to the surface of the material into the discharge component.

[0017] By adopting the above technical solution, the leveling frame and scraper work together to form a passage for the finished product conveyor belt and materials to pass through. When the finished product conveyor belt carries the materials through the passage, the scraper blocks and levels the materials whose accumulation height is higher than the height of the passage, so that the thickness of the materials passing through the passage is lower than the set value. Then, the leveled materials are washed by the nozzle to flush the impurities adhering to the material surface into the discharge component, thereby reducing the impurity content of the finished material.

[0018] Furthermore, the frame is equipped with a drying assembly for drying the material on the finished product conveyor belt, the drying assembly comprising: A heat insulation frame is mounted on the frame and forms a heat insulation cavity for drying the material on the finished product conveyor belt. The distance between the heat insulation frame and the upper surface of the finished product conveyor belt is equal to the distance between the scraper and the upper surface of the finished product conveyor belt. A heater, which is disposed within an insulation frame and is used to heat and dry the material within the insulation chamber.

[0019] By adopting the above technical solution, after the finished product conveyor belt brings the material into the heat insulation frame, the heat insulation cavity is heated by the heater to achieve the drying process of the material and improve the quality of the finished product.

[0020] Furthermore, the heat insulation frame is provided with a condensation assembly for condensing and discharging water vapor from the heat insulation cavity, the condensation assembly comprising: A flow guide frame is provided inside the insulation frame and is used to collect condensate on the flow guide frame and at the top of the insulation frame; A thermocouple condenser plate is embedded in a flow guide frame. The heating end of the thermocouple condenser plate is located at the end of the flow guide frame near the finished product conveyor belt, and the condensing end of the thermocouple condenser plate is located at the end of the flow guide frame near the top of the heat insulation frame. A drain pipe is provided on the guide frame and is used to drain the accumulated water in the guide frame from the heat insulation frame.

[0021] By adopting the above technical solution, the thermocouple condenser plate improves the condensation efficiency of water vapor on the guide frame. The guide frame is used to collect the condensate between the top of the guide frame and the insulation frame. Finally, the condensate collected in the guide frame is discharged through the drain pipe, thereby reducing the probability of condensate dripping from the insulation cavity onto the material.

[0022] Furthermore, multiple sets of drain pipes are spaced apart on the side wall near the bottom of the cleaning cylinder. Each drain pipe has a drain filter screen near the end of the cleaning cylinder that allows only cleaning liquid and fine particles to pass through. The drain pipe is opened intermittently to discharge fine particles from the cleaning cylinder.

[0023] By adopting the above technical solution, as the cleaning fluid cleans and grinds the material, the number of small particles in the cleaning cylinder increases. When the drain pipe is opened, some of the cleaning fluid and fine particles enter the drain pipe through the drain filter and are eventually discharged from the cleaning cylinder. This reduces the content of fine particles in the cleaning cylinder and improves the cleaning and grinding effect of the cleaning fluid on the material.

[0024] Furthermore, a control valve for controlling the opening and closing of the drain pipe is provided at the end of the drain pipe away from the cleaning cylinder. A temporary storage cavity for temporarily storing fine particles is formed between the control valve and the drain filter screen. The drain pipe is inclined and the height of the end near the cleaning cylinder is higher than the height of the control valve end.

[0025] By adopting the above technical solution, when the control valve closes the drain pipe, the fine particles in the cleaning cylinder are caused to pass through the drain filter and enter the temporary storage chamber under the action of gravity and centrifugal force as the cleaning fluid rotates. When the control valve opens the drain pipe, the fine particles and cleaning fluid in the temporary storage chamber are quickly discharged from the drain pipe, thereby increasing the speed at which the drain pipe discharges fine particles and reducing the amount of cleaning fluid discharged when the drain pipe discharges fine particles.

[0026] In summary, this application includes at least one of the following beneficial technical effects: 1. The waste concrete is subjected to multi-stage crushing by the crushing mechanism. The crushed material is temporarily stored by the temporary storage component. Then, a certain amount of the crushed material is discharged into the washing drum. The washing drive component drives the washing liquid and material in the washing drum to clean and grind. The discharge component discharges the impurities and washing liquid, thereby removing loose particles and weak layers from the surface of the crushed material. At the same time, the particle size and shape of the material are adjusted, ultimately improving the quality of the waste concrete crushing and recycling product.

[0027] 2. By using a heater and an insulation frame in conjunction to dry the cleaned material, the probability of the material being contaminated again by fine particles is reduced, and the quality of the finished product is improved. Attached Figure Description

[0028] Figure 1 This is a schematic diagram of the waste concrete recycling and reuse equipment of this application; Figure 2 This is a schematic diagram of the crushing mechanism structure of this application, in which the side wall of the crushing chamber is viewed in section. Figure 3 This is a schematic diagram of the cleaning mechanism structure of this application; Figure 4 yes Figure 3 A cross-sectional schematic diagram of AA in the middle; Figure 5This is a structural schematic diagram of the cleaning mechanism, rinsing assembly, and drying assembly of this application, showing the state when the tilting motor drives the tilting plate to tilt and pours out the material in the cleaning cylinder; Figure 6 yes Figure 5 Cross-sectional schematic diagram of BB; Figure 7 yes Figure 6 Enlarged diagram of section C.

[0029] Reference numerals: 1. Frame; 2. Crushing mechanism; 21. Crushing box; 22. Primary crusher; 23. First screening component; 24. Return component; 25. Secondary crusher; 26. Secondary screening conveyor belt; 27. Guide component; 3. Cleaning mechanism; 31. Temporary storage component; 32. Cleaning cylinder; 321. Protrusion; 322. Water spray component; 323. Overflow port; 33. Cleaning drive component; 331. Rotating disc; 332. Cleaning drive motor; 4. Guide component; 41. Inlet plate; 4 2. Backflow preventer; 5. Drain pipe; 51. Drain filter screen; 52. Control valve; 53. Temporary storage chamber; 6. Discharge assembly; 61. Tilting plate; 62. Tilting motor; 63. Finished product conveyor belt; 64. Discharge component; 7. Washing assembly; 71. Scraper frame; 72. Scraper; 721. Material inlet; 73. Nozzle; 8. Drying assembly; 81. Heat insulation frame; 82. Heater; 9. Condensation assembly; 91. Flow guide frame; 92. Thermocouple condenser plate; 93. Drain pipe. Detailed Implementation

[0030] The following is in conjunction with the appendix Figure 1-7 This application will be described in further detail.

[0031] This application discloses a waste recycling and reuse device for concrete production.

[0032] Reference Figure 1 A waste recycling and reuse equipment for concrete production includes a frame 1, a crushing mechanism 2 for multi-stage crushing of waste concrete on the frame 1, and a cleaning mechanism 3 for cleaning the material discharged from the crushing mechanism 2 on the frame 1.

[0033] Reference Figure 1 and Figure 2The frame 1 is fixedly installed on the ground. The crushing mechanism 2 includes a crushing box 21, a primary crusher 22, a first screening component 23, a return component 24, and a secondary crusher 25. The top of the crushing box 21 is connected to the feed conveyor belt, so that waste concrete is transported into the crushing box 21 by the feed conveyor belt. The primary crusher 22 is fixedly installed in the crushing box 21, and the primary crushing box 21 is used to perform primary crushing of the waste concrete entering the crushing box 21. The first screening component 23 is fixedly installed in the crushing box 21 and connected to the primary crusher 22. The waste concrete crushed by the primary crusher 22 enters the first screening component 23 and passes through the first screen. The separator 23 separates the material crushed by the primary crusher 22 into coarse and fine parts; the return component 24 is fixedly installed on the crushing box 21 and is connected to the first screening component 23. The return component 24 is used to return the coarse material after screening by the first screening component 23 to the feed conveyor belt; the secondary crusher 25 is connected to the first screening component 23. The first screening component 23 feeds the fine material after screening into the secondary crusher 25, and the secondary crusher 25 further crushes the fine material discharged from the first screening component 23; in this embodiment, the primary crusher 22 is a jaw crusher, the secondary crusher 25 is a hammer crusher, and the first screening component 23 is a vibrating screen.

[0034] Reference Figure 1 and Figure 2 The crushing mechanism 2 also includes a secondary screen conveyor belt 26, which is fixedly installed on the frame 1 and connected to the secondary crusher 25. The secondary screen conveyor belt 26 is used to transport the material crushed by the secondary crusher 25. Multiple sets of fine screening holes are opened at intervals on the secondary screen conveyor belt 26. A guide 27 is fixedly installed on the bottom of the secondary screen conveyor belt 26. The guide 27 is used to collect the fine particles falling from the multiple sets of fine screening holes and discharge them into the bottom of the crushing box 21. When the secondary screen conveyor belt 26 moves, the smaller diameter material on the secondary screen conveyor belt 26 falls into the guide 27 through the multiple sets of fine screening holes. The guide 27 guides the fine particles into the bottom of the crushing box 21 and periodically removes the fine particles from the bottom of the crushing box 21, thus completing the crushing treatment of waste concrete.

[0035] Reference Figure 1 , Figure 3 and Figure 4The cleaning mechanism 3 includes a temporary storage component 31, a cleaning cylinder 32, and a cleaning drive component 33. The temporary storage component 31 is fixed on the frame 1 and connected to the secondary screen conveyor belt 26. The temporary storage component 31 is used to temporarily store the material transported from the secondary screen conveyor belt 26. The cleaning cylinder 32 is installed on the frame 1 and is located directly below the temporary storage component 31. When the valve inside the temporary storage component 31 is opened, the material inside the temporary storage component 31 is discharged into the cleaning cylinder 32. The cleaning cylinder 32 uses cleaning fluid to clean the material discharged from the temporary storage component 31. The cleaning drive component 33 is installed on the cleaning cylinder 32. The cleaning drive unit 33 is used to drive the cleaning liquid and materials in the cleaning cylinder 32 to rotate, thereby cleaning the materials and ultimately separating the micro-contaminants and loosely attached concrete residues adhering to the material surface from the materials, thereby improving the cleanliness of the materials and the adhesion performance with new concrete; at the same time, the cleaning drive unit 33 drives the cleaning liquid and materials in the cleaning cylinder 32 to rotate, so that the materials interact with each other and the cleaning liquid interacts with the materials, thereby grinding the materials and removing some of the weak layers and contaminants on the surface of the materials.

[0036] Reference Figure 3 and Figure 4 To improve the cleaning and grinding effect of materials during cleaning in the cleaning cylinder 32, multiple sets of protrusions 321 are installed at intervals on the side wall of the cleaning cylinder 32. Grinding discs for friction and grinding of materials are fixedly installed on the protrusions 321. When the cleaning liquid and materials in the cleaning cylinder 32 rotate, the materials rub against each other with the grinding discs on the protrusions 321, thereby grinding the surface of the materials and improving the grinding effect. At the same time, multiple sets of water spraying elements 322 are arranged at intervals inside the cleaning cylinder 32. The water spraying elements 322 are used to spray high-pressure water jets, which impact the surface of the rotating materials inside, thereby improving the cleaning and grinding effect of the materials.

[0037] Reference Figure 3 and Figure 4 The cleaning drive unit 33 includes a rotating disk 331, a cleaning drive motor 332, and a controller. The rotating disk 331 is rotatably mounted on the bottom of the cleaning cylinder 32. The rotating disk 331 is used to drive the cleaning liquid and materials inside the cleaning cylinder 32 to rotate. Multiple sets of protrusions are installed on the rotating disk 331 at intervals. When the rotating disk 331 rotates, the multiple sets of protrusions facilitate the rotation of the cleaning liquid and materials inside the cleaning cylinder 32. The cleaning drive motor 332 is located on the outside of the cleaning cylinder 32 and is used to drive the rotating disk 331 to rotate. The controller is fixedly mounted on the outside of the cleaning cylinder 32 and is used to control the intermittent forward and reverse rotation of the cleaning drive motor 332. By controlling the intermittent forward and reverse rotation of the rotating disk 331, the collision between the cleaning liquid and the materials, and between the materials themselves, is improved, thereby improving the cleaning and grinding effect on the materials.

[0038] Reference Figure 3 and Figure 4 Because the waste concrete contains a small amount of lightweight materials such as plastic, wood chips, and foam, these materials are relatively light. The rotating disc 331 causes the cleaning fluid and materials inside the cleaning cylinder 32 to rotate, separating the lightweight materials from the main material and allowing them to float above the cleaning fluid. An overflow port 323 is provided on the outer wall of the cleaning cylinder 32, and a guide pipe is fixedly installed on the outer wall of the cleaning cylinder 32. The guide pipe is used to discharge the cleaning fluid and floating debris flowing out of the overflow port 323. A section is provided on the outer wall of the cleaning cylinder 32 near the top. A guide 4 is provided for guiding floating objects into the overflow port 323. The guide 4 includes an inlet plate 41 and a backflow preventer 42. The inlet plate 41 is fixedly installed on the side wall of the cleaning cylinder 32. The inlet plate 41 is used to guide floating objects into the overflow port 323 area when the cleaning fluid is rotating in the forward direction. The inlet plate 41 has a mesh structure. The backflow preventer 42 is fixedly installed on the side wall of the cleaning cylinder 32. The backflow preventer 42 is used to prevent floating objects in the overflow port 323 area from moving away from the overflow port 323 when the cleaning fluid is rotating in the reverse direction. The backflow preventer 42 has a mesh structure.

[0039] Reference Figure 3 and Figure 4 Specifically, as the water sprayer 322 continuously sprays high-pressure water into the cleaning cylinder 32, the amount of cleaning fluid in the cleaning cylinder 32 continuously increases. When the rotating disk 331 of the cleaning cylinder 32 rotates forward, it drives the cleaning fluid to rotate forward as well. Floating objects are guided into the overflow port 323 area by the guide plate 41. The cleaning fluid can pass through the guide plate 41, but larger floating objects cannot pass through it. When the rotating disk 331 rotates in reverse, it drives the cleaning fluid to rotate in reverse, and the cleaning fluid impacts the guide plate 41 in the opposite direction, causing the fluid to flow through the overflow port 323 area. Plate 41 maintains good water permeability; at this time, floating objects are impacted by the flow of cleaning fluid and hit the backflow plate 42. The cleaning fluid can pass through the backflow plate 42, but larger floating objects cannot pass through the backflow plate 42, thereby blocking the floating objects at the overflow port 323 area; when the rotating disk 331 rotates forward again, the cleaning fluid impacts the backflow plate 42 in the opposite direction, thereby flushing the floating objects in the overflow port 323 area into the overflow port 323 and discharging them, and finally discharging the larger floating objects in the cleaning cylinder 32.

[0040] Reference Figure 3 and Figure 4 As the cleaning fluid continuously cleans the material, the content of fine particles in the cleaning cylinder 32 increases, which affects the subsequent cleaning and grinding effect on the material. Multiple sets of drain pipes 5 are installed at intervals on the side wall near the bottom of the cleaning cylinder 32. A drain filter screen 51 that allows only the cleaning fluid and fine particles to pass through is set at the end of the drain pipe 5 near the cleaning cylinder 32. The drain pipe 5 is opened intermittently to discharge the fine particles in the cleaning cylinder 32.

[0041] Reference Figure 3 and Figure 4 To avoid the probability of excessive cleaning fluid leakage from the cleaning cylinder 32 due to prolonged opening of the drain pipe 5, a control valve 52 for controlling the opening and closing of the drain pipe 5 is fixedly installed at the end of the drain pipe 5 furthest from the cleaning cylinder 32. A temporary storage chamber 53 for temporarily storing fine particles is formed between the control valve 52 and the drain filter screen 51. The drain pipe 5 is installed at an angle, and the height of the end of the drain pipe 5 near the cleaning cylinder 32 is higher than the height of the end of the control valve 52. This allows the fine particles in the cleaning cylinder 32 to accumulate in the temporary storage chamber 53 under the action of gravity and centrifugal force when the control valve 52 is closed. This enables the fine particles to be quickly discharged as soon as the control valve 52 is opened, reducing the probability of excessive cleaning fluid leakage. In this embodiment, the generation of fine particles in the cleaning cylinder 32 decreases continuously with the increase of cleaning time. Therefore, the time interval between opening the control valve 52 increases continuously with the increase of cleaning time.

[0042] Reference Figure 1 , Figure 3 and Figure 5 The cleaning mechanism 3 also includes a discharge assembly 6, which is mounted on the frame 1. The discharge assembly 6 is used to discharge the cleaned material from the cleaning cylinder 32. The discharge assembly 6 includes a tilting plate 61, a tilting motor 62, a finished product conveyor belt 63, and a discharge component 64. The tilting plate 61 is rotatably mounted on the frame 1, and the cleaning cylinder 32 is fixedly mounted on the tilting plate 61. The cleaning cylinder 32 tilts with the tilting plate 61 to pour out the material inside. The tilting motor 62 is fixedly mounted on the frame 1 and is used to drive the tilting plate 61 to tilt. The finished product conveyor belt 63 is fixedly mounted on the frame 1 and is used to discharge the material poured out from the cleaning cylinder 32. The finished product conveyor belt 63 adopts a screen structure to filter out small particles and cleaning liquid. The discharge component 64 is fixedly mounted on the frame 1 and is located directly below the finished product conveyor belt 63. The discharge component 64 is used to discharge the small particles and cleaning liquid filtered out by the finished product conveyor belt 63.

[0043] Reference Figure 1 , Figure 3 and Figure 5 Specifically, after the material in the washing cylinder 32 is cleaned, the tilting motor 62 drives the tilting plate 61 to rotate slowly, thereby tilting and tilting the washing cylinder 32 at a certain angle. During this process, the cleaning liquid and material in the washing cylinder 32 slide out of the washing cylinder 32 under the action of gravity. When the center line of the washing cylinder 32 tilts downward, the material in the washing cylinder 32 slides completely onto the finished product conveyor belt 63 under the action of gravity and the high-pressure water flow sprayed by the water spraying component 322. At the same time, the cleaning liquid and some fine particles fall onto the discharge component 64 through the screen structure of the finished product conveyor belt 63 and are discharged, thereby completing the cleaning of the material.

[0044] Reference Figure 5 and Figure 6 The frame 1 is equipped with a rinsing assembly 7 for rinsing the material on the finished product conveyor belt 63. The rinsing assembly 7 includes a leveling frame 71, a scraper 72, and a nozzle 73. The leveling frame 71 is fixedly installed on the frame 1, and the finished product conveyor belt 63 passes through the leveling frame 71. The scraper 72 is fixedly installed on the leveling frame 71, and a material passage 721 of a specified size is formed between the scraper 72 and the leveling frame 71. When the finished product conveyor belt 63 carries the material through the material passage 721, the scraper 72 blocks and levels the material whose accumulation height is higher than the height of the material passage 721, so that the thickness of the material passing through the material passage 721 is lower than the set value. The nozzle 73 is fixedly installed on the frame 1 and is located above the finished product conveyor belt 63. The nozzle 73 is used to spray water onto the finished product conveyor belt 63 to flush the impurities adhering to the surface of the material into the discharge component 64.

[0045] Reference Figure 1 and Figure 5 Specifically, since the cleaning fluid and material in the cleaning cylinder 32 are poured onto the finished product conveyor belt 63 together, some of the separated fine particles will re-adhere to the surface of the material. At the same time, the material on the finished product conveyor belt 63 is prone to clump together. The scraper 72 scrapes the excessively piled material to make the material thickness on the finished product conveyor belt 63 uniform. Then, water is sprayed through the nozzle 73 to flush the impurities that have re-adhere to the surface of the material into the finished product conveyor belt 63. Finally, the fine particles and water flow enter the discharge component 64 and are discharged, reducing the probability of fine particles adhering to the finished material.

[0046] Reference Figure 5 and Figure 6 The frame 1 is equipped with a drying assembly 8 for drying the material on the finished product conveyor belt 63. The drying assembly 8 includes a heat insulation frame 81 and a heater 82. The heat insulation frame 81 is fixedly installed on the frame 1 and forms a heat insulation cavity for drying the material on the finished product conveyor belt 63. The heat insulation frame 81 has a good heat insulation effect. The distance between the two ends of the heat insulation frame 81 and the finished product conveyor belt 63 is equal to the distance between the scraper 72 and the finished product conveyor belt 63, thereby ensuring that the material passes through while minimizing the distance between the heat insulation frame 81 and the upper surface of the material. The heater 82 is fixedly installed inside the heat insulation frame 81. The heater 82 is used to heat and dry the material in the heat insulation cavity to remove the moisture inside the material and further improve the strength and durability of the material as aggregate. In this embodiment, the heater 82 can be microwave heating or infrared heating.

[0047] Reference Figure 6 and Figure 7Because a large amount of water vapor is easily generated during the drying process of materials, and this water vapor can easily drip onto the materials after condensation, the condensate temperature is low while the temperature of the dried materials is high. Direct dripping of the condensate onto the dried materials can easily damage them. Therefore, a condensation assembly 9 is installed inside the insulation frame 81 to condense and discharge the water vapor within the insulation chamber. The condensation assembly 9 includes a guide frame 91, a thermocouple condensation plate 92, and a drain pipe 93. The guide frame 91 is a hollow conical structure composed of four sets of triangular plates. The guide frame 91 is fixedly installed on the top of the insulation frame 81, and gaps are provided between the guide frame 91 and the four side walls of the insulation frame 81 to facilitate the entry of water vapor into the top of the insulation frame 81 and the guide frame. Inside the guide frame 91, a thermocouple condenser plate 92 is embedded in the guide frame 91. The heating end of the thermocouple condenser plate 92 is located at the end of the guide frame 91 near the finished product conveyor belt 63, and the condensing end of the thermocouple condenser plate 92 is located at the end of the guide frame 91 near the top of the insulation frame 81. This allows water vapor inside the insulation frame 81 to condense inside the guide frame 91. A drain pipe 93 is fixedly installed at the bottom of the guide frame 91. The drain pipe 93 is used to drain the water accumulated in the guide frame 91 from the insulation frame 81, thereby reducing the probability of condensate dripping onto the material. The drain pipe 93 is also wrapped with an insulation layer, ultimately achieving the drying treatment of the cleaned material and improving the quality of the waste concrete crushing and recycling product.

[0048] The working principle of this application embodiment is as follows: The waste concrete is subjected to multi-stage crushing by the crushing mechanism 2. The crushed material is temporarily stored by the temporary storage component 31. Then, a certain amount of the crushed material is discharged into the washing cylinder 32. The washing drive component 33 drives the washing liquid and material in the washing cylinder 32 to clean and grind. The impurities and washing liquid are discharged by the discharge component 6. In this way, loose particles and weak layers on the surface of the crushed material are removed, and the particle size and shape of the material are adjusted, ultimately improving the quality of the waste concrete crushing and recycling product.

[0049] The above are all preferred embodiments of this application and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A waste recycling and reuse device for concrete production, characterized in that: The machine includes a frame (1), on which a crushing mechanism (2) for multi-stage crushing of waste concrete is provided, and on which a cleaning mechanism (3) for cleaning the material discharged from the crushing mechanism (2) is provided, the cleaning mechanism (3) including: Temporary storage component (31), which is mounted on the frame (1) and used to temporarily store the material discharged from the crushing mechanism (2); A cleaning cylinder (32) is installed on the frame (1). The cleaning cylinder (32) is used to clean the material discharged from the temporary storage component (31) by the cleaning liquid. Cleaning drive (33) is disposed on the cleaning cylinder (32) and is used to drive the cleaning liquid and material in the cleaning cylinder (32) to rotate and clean and grind the material; Discharge assembly (6), which is mounted on the frame (1) and used to discharge the cleaned material from the cleaning cylinder (32); The cleaning cylinder (32) is provided with multiple sets of protrusions (321) spaced apart. The protrusions (321) are provided with grinding discs for friction grinding of the material. The cleaning cylinder (32) is provided with multiple sets of water spraying elements (322) spaced apart inside. The water spraying elements (322) are used to spray high-pressure water flow and impact the surface of the material. The cleaning drive (33) includes: Rotary disk (331) is rotatably mounted on the bottom of the cleaning cylinder (32) and is used to drive the cleaning liquid and materials in the cleaning cylinder (32) to rotate; A cleaning drive motor (332) is mounted on the cleaning cylinder (32) and is used to drive the rotating disk (331) to rotate. A controller is mounted on the cleaning drum (32) and is used to control the intermittent forward and reverse rotation of the cleaning drive motor (332); An overflow port (323) is provided on the outer wall of the cleaning cylinder (32), and a guide pipe is provided on the outer wall of the cleaning cylinder (32) for discharging the cleaning fluid and floating matter flowing out of the overflow port (323). A guide member (4) for guiding the floating matter into the overflow port (323) is provided on the outer wall of the cleaning cylinder (32) near the top. The guide member (4) includes: An inlet plate (41) is provided on the side wall of the cleaning cylinder (32) and is used to guide floating objects to the overflow port (323) when the cleaning liquid rotates in the forward direction. The inlet plate (41) has a mesh structure. Backflow preventer (42), the backflow preventer (42) is set on the side wall of the cleaning cylinder (32) and is used to prevent floating objects at the overflow port (323) from moving away from the overflow port (323) when the cleaning liquid reverses; the backflow preventer (42) has a mesh structure. Multiple sets of drain pipes (5) are arranged at intervals on the side wall near the bottom of the cleaning cylinder (32). The drain pipe (5) near the end of the cleaning cylinder (32) is provided with a drain filter screen (51) that allows only cleaning liquid and fine particles to pass through. The drain pipe (5) is opened intermittently to discharge fine particles from the cleaning cylinder (32).

2. The waste recycling and reuse equipment in concrete production according to claim 1, characterized in that: The discharge assembly (6) includes: A tilting plate (61) is rotatably mounted on a frame (1), and a washing cylinder (32) is mounted on the tilting plate (61) and pours out its internal material as the tilting plate (61) rotates. A flip motor (62) is mounted on the frame (1) and is used to drive the flip plate (61) to rotate; Finished product conveyor belt (63) is set on the frame (1) and used to discharge the material poured out of the washing cylinder (32). The finished product conveyor belt (63) adopts a screen structure and is used to filter out small particulate matter. Discharge component (64), which is set on the frame (1) and is used to discharge small particulate matter and cleaning liquid filtered out by the finished product conveyor belt (63).

3. The waste recycling and reuse equipment in concrete production according to claim 2, characterized in that: The frame (1) is provided with a rinsing assembly (7) for rinsing the material on the finished product conveyor belt (63), the rinsing assembly (7) comprising: A leveling frame (71) is provided on the frame (1), and the finished product conveyor belt (63) passes through the leveling frame (71). Scraper (72), the scraper (72) is set on the leveling frame (71), the scraper (72) and the leveling frame (71) cooperate with each other to level the material on the finished product conveyor belt (63); The nozzle (73) is mounted on the frame (1) and located above the finished product conveyor belt (63). The nozzle (73) is used to spray water onto the finished product conveyor belt (63) and flush impurities adhering to the surface of the material into the discharge component (64).

4. The waste recycling and reuse equipment in concrete production according to claim 3, characterized in that: The frame (1) is provided with a drying assembly (8) for drying the material on the finished product conveyor belt (63), the drying assembly (8) comprising: A heat insulation frame (81) is set on the frame (1) and forms a heat insulation cavity for drying the material on the finished product conveyor belt (63). The distance between the heat insulation frame (81) and the upper surface of the finished product conveyor belt (63) is equal to the distance between the scraper (72) and the upper surface of the finished product conveyor belt (63). Heater (82), which is disposed inside the heat insulation frame (81) and is used to heat and dry the material in the heat insulation cavity.

5. The waste recycling and reuse equipment in concrete production according to claim 4, characterized in that: The heat insulation frame (81) is provided with a condensation assembly (9) for condensing and discharging water vapor in the heat insulation cavity. The condensation assembly (9) includes: A flow guide frame (91) is disposed inside the heat insulation frame (81) and is used to collect condensate on the flow guide frame (91) and the top of the heat insulation frame (81); Thermocouple condenser plate (92) is embedded in the flow guide frame (91). The heating end of the thermocouple condenser plate (92) is located on the end of the flow guide frame (91) near the finished product conveyor belt (63), and the condensing end of the thermocouple condenser plate (92) is located on the end of the flow guide frame (91) near the top of the heat insulation frame (81). Drain pipe (93) is provided on the guide frame (91) and is used to drain the water accumulated in the guide frame (91) out of the insulation frame (81).

6. The waste recycling and reuse equipment in concrete production according to claim 1, characterized in that: The end of the drain pipe (5) away from the cleaning cylinder (32) is provided with a control valve (52) for controlling the opening and closing of the drain pipe (5). A temporary storage chamber (53) for temporarily storing fine particles is formed between the control valve (52) and the drain filter screen (51). The drain pipe (5) is inclined and the height of the end near the cleaning cylinder (32) is higher than the height of the end of the control valve (52).

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