A sand and gravel cleaning device for concrete processing

Abstract

The present invention relates to the technical field of concrete processing, and specifically to a sand and gravel cleaning device for concrete processing, comprising an isolation tank and a unit cleaning device, wherein the isolation tank is fixed on a base, and at least two unit cleaning devices for cleaning sand and gravel are installed in series from top to bottom in the isolation tank, and the unit cleaning device comprises a mounting frame fixedly installed with the isolation tank. The sand and gravel cleaning device completes the closed cleaning of sand and gravel by using the unit cleaning devices arranged in multiple stages in the vertical direction in the isolation tank, so that the transfer device and the stirring device can work at a higher rotation speed without worrying about accidents caused by splashing sand and gravel and water flow, so that a higher cleaning efficiency can be obtained, thereby saving time and floor space, being safer, and being able to effectively isolate noise. The existing sand and gravel cleaning equipment solves the problems of low cleaning efficiency, large floor space, and serious noise pollution, and can effectively improve the cleaning efficiency of sand and gravel.

Description

Technical Field

[0001] The invention relates to the technical field of concrete processing, in particular to a sand and gravel cleaning device used for concrete processing. Background Art

[0002] Concrete is generally made by mixing cement, sand and water in a certain proportion. Concrete has high compressive strength and good durability. It is the most commonly used engineering raw material in modern construction. During the concrete mixing process, soil and other pollutants mixed on the surface of sand and gravel often affect the structural strength of concrete, resulting in substandard concrete quality and engineering accidents. Therefore, before concrete production, the sand and gravel to be used need to be cleaned to remove soil and other impurities on the surface of the sand and gravel.

[0003] Traditionally, concrete cleaning mainly uses simple mixing equipment to stir and clean sand and gravel in water. For example, the cleaning device with patent number CN211757212U and patent name "An energy-saving and environmentally friendly sand and gravel cleaning device" drives the sand and gravel to be cleaned by the rotation of the retaining barrel in water. However, due to the low cleaning efficiency of this type of cleaning equipment, it is often necessary to use multiple stages of equipment in series horizontally on the ground. However, this form of horizontal series use will cause the problem of occupying too much floor space. At the same time, since the equipment itself is not sealed, it will not only cause serious noise pollution during the operation, but also easily cause sand and water splashing, posing a safety risk. Or in order to avoid sand and water splashing, only low-speed and low-efficiency cleaning methods can be used, so the cleaning effect is not ideal.

[0004] Therefore, we need a sand and gravel cleaning device for concrete processing to solve the problems of low cleaning efficiency, large footprint, serious noise pollution, etc. of existing sand and gravel cleaning equipment, which can effectively improve the cleaning efficiency of sand and gravel. Summary of the invention

[0005] The purpose of the present invention is to solve the problems of low cleaning efficiency, large footprint, serious noise pollution, etc. of existing sand and gravel cleaning equipment. The present application provides a sand and gravel cleaning device for concrete processing, which can effectively improve the cleaning efficiency of sand and gravel.

[0006] To achieve the above object, the present invention provides the following technical solution: a sand and gravel cleaning device for concrete processing, comprising:

[0007] An isolation tank, wherein the isolation tank is fixed on a base;

[0008] A unit cleaning device, wherein at least two unit cleaning devices for cleaning sand and gravel are installed in series from top to bottom in the isolation tank, and the unit cleaning device includes a mounting frame fixedly installed with the isolation tank, and a support box is provided at the bottom of the mounting frame, and an upper cover is provided at the top of the support box, the support box is divided into a cleaning chamber and a sewage chamber by a bottom filter screen, and water is supplied to the cleaning chamber through a water supply device at the top of the upper cover, a drainage pump connected to the sewage chamber is installed on the support box, and a stirring device for stirring the water flow in the cleaning chamber is rotatably installed on the support box;

[0009] A transfer device, the transfer device is rotatably installed in the cleaning chamber, and a first driving motor for driving the transfer device to rotate is fixedly installed on the upper cover, a docking chamber corresponding to the transfer device is installed on the upper cover, and a discharge pipe is installed on the docking chamber, and a receiving pipe communicating with the cleaning chamber is installed on the support box, and the receiving pipe is connected to the discharge pipe on the adjacent unit cleaning device;

[0010] The controller is mounted on the base and is electrically connected to the first drive motor and the liquid displacement pump respectively.

[0011] Preferably, the stirring device includes a stirring shaft inserted into the cleaning chamber, and at least one pair of inclined fan blades for stirring sand and water are fixedly installed in a circular array on the stirring shaft, and a second drive motor for driving the stirring shaft to rotate is fixedly installed on the support box, and the second drive motor is electrically connected to the controller.

[0012] Preferably, a storage box for temporarily storing sand and gravel is provided on the top of the isolation tank, and the storage box is installed with an external feeding device through a feeding port.

[0013] Preferably, a discharge pipe is provided at the bottom of the isolation tank, corresponding to a conical discharge port for discharging sand and gravel, and a maintenance manhole is provided on the isolation tank for convenient maintenance of the interior of the isolation tank.

[0014] Preferably, the water supply device includes at least one water supply pump fixedly mounted on the upper cover, and the water supply pump is connected to an external water supply device through a water supply pipe. At least four water spray heads for spraying clean water toward the transfer device are installed in a linear array on the upper cover at the position corresponding to each water supply pump, and the water spray heads are connected to the output end of the water supply pump.

[0015] Preferably, the output end of the drainage pump is connected to an external sewage collection device through a drainage pipe, and sound-absorbing cotton for absorbing noise is provided on the inner wall of the isolation tank.

[0016] Preferably, the transfer device includes a rotating shaft fixedly mounted on the output end of the first driving motor, and a rotating frame is fixedly mounted on the rotating shaft, and the rotating frame is divided into at least four unit cavities for scooping up sand and gravel in a circular array by partition plates.

[0017] Preferably, a shovel plate for scooping up sand and gravel and preventing the sand and gravel from falling is provided outside the unit cavity, and the outer wall of the shovel plate is fitted with the upper cover.

[0018] Preferably, a drainage filter screen is provided at the bottom of the unit cavity for discharging water in the unit cavity into the cleaning cavity, and the drainage filter screen is connected to the unit cavity by detachable bolts.

[0019] Preferably, the controller is an industrial computer or a PLC controller, and a liquid level sensor is provided in the cleaning chamber for detecting the water level in the cleaning chamber and is electrically connected to the controller.

[0020] Compared with the prior art, the present invention has the following beneficial effects:

[0021] The sand and gravel cleaning device for concrete processing proposed by the present invention completes the cleaning of sand and gravel by using a plurality of unit cleaning devices arranged in multiple stages in the vertical direction in an isolation tank. The entire sand and gravel cleaning process is completed in the closed unit cleaning device and isolation pipe, so that the transfer device and the stirring device can work at a higher speed without worrying about accidents caused by splashing sand and gravel and water flow, so that higher cleaning efficiency can be obtained, thereby saving time, and effectively isolating noise, and also effectively preventing sand and gravel and water from splashing, so that the cleaning process is safer. It solves the problems of low cleaning efficiency, large floor space, and serious noise pollution of existing sand and gravel cleaning equipment, and can effectively improve the cleaning efficiency of sand and gravel. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a schematic diagram of the structure of the present invention;

[0023] Figure 2 It is a cross-sectional view of the structure of the present invention;

[0024] Figure 3 It is a schematic diagram of the series connection of the unit cleaning device in the present invention;

[0025] Figure 4 It is a structural schematic diagram of the unit cleaning device in the present invention;

[0026] Figure 5 It is a transverse cross-sectional schematic diagram of the unit cleaning device in the present invention;

[0027] Figure 6 It is a longitudinal cross-sectional schematic diagram of the unit cleaning device in the present invention;

[0028] Figure 7 It is a schematic diagram of the structure of the transfer device in the present invention;

[0029] Figure 8It is a structural schematic diagram of the stirring device in the present invention;

[0030] Fig. 9 It is a schematic diagram of the installation of the bottom filter screen in the present invention.

[0031] In the figure: 1. isolation tank; 2. stirring device; 201. inclined fan blade; 202. stirring shaft; 3. transfer device; 301. shovel plate; 302. unit cavity; 303. drainage filter; 304. rotating shaft; 305. rotating frame; 4. unit cleaning device; 401. upper cover; 402. mounting frame; 403. supporting box; 5. water supply device; 501. water supply pump; 502. sprinkler head; 503. water supply pipe; 6. cleaning cavity; 7. bottom filter; 8. sewage cavity; 9. first drive motor; 10. feed port; 11. conical discharge port; 12. maintenance manhole; 13. base; 14. controller; 15. storage box; 16. material receiving pipe; 17. discharge pipe; 18. docking cavity; 19. second drive motor; 20. drainage pump; 21. drainage pipe. DETAILED DESCRIPTION

[0032] In order to make the purpose and technical solution of the present invention clearly and completely described, and the advantages more clearly understood, the embodiments of the present invention are further described in detail with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are part of the embodiments of the present invention, rather than all of the embodiments, and are only used to explain the embodiments of the present invention, and are not used to limit the embodiments of the present invention. All other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0033] In the description of the present invention, it should be noted that the terms "center", "middle", "upper", "lower", "left", "right", "inner", "outer", "top", "bottom", "side", "vertical", "horizontal" and the like indicate positions or positional relationships based on the positions or positional relationships 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 operate in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "one", "first", "second", "third", "fourth", "fifth", "sixth" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0034] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0035] For the purpose of simplicity and illustration, the principles of the embodiments are mainly described by reference to examples. In the following description, many specific details are proposed to provide a thorough understanding of the embodiments. However, it is obvious that for those of ordinary skill in the art, these embodiments may not be limited to these specific details in practice. In some instances, known methods and structures are not described in detail to avoid making these embodiments unnecessarily difficult to understand. In addition, all embodiments can be used in combination with each other.

[0036] Embodiment 1, the present invention provides a technical solution: a sand and gravel cleaning device for concrete processing, comprising an isolation tank 1, a unit cleaning device 4, a transfer device 3 and a controller 14, see Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 and Fig. 9The isolation tank 1 is fixed on a base 13, and the base 13 is fixed on the ground. The isolation tank 1 can prevent splashing, sound insulation and reduce the occupation of the equipment on the ground through three-dimensional assembly. At least two unit cleaning devices 4 for cleaning sand and gravel are installed in series from top to bottom in the isolation tank 1, and the unit cleaning device 4 includes a mounting frame 402 fixedly installed with the isolation tank 1, and a support box 403 is provided at the bottom of the mounting frame 402, and an upper cover 401 is provided on the top of the support box 403, and the upper cover 401 can prevent noise from propagating to the unit cleaning device The support box 403 is divided into a cleaning chamber 6 and a sewage chamber 8 by a bottom filter screen 7. The sand and gravel will be cleaned in the cleaning chamber 6. The sewage generated after cleaning will enter the sewage chamber 8 after being filtered by the bottom filter screen 7 and wait for discharge. The top of the upper cover 401 supplies water to the cleaning chamber 6 through the water supply device 5. A drainage pump 20 connected to the sewage chamber 8 is installed on the support box 403. The output end of the drainage pump 20 is connected to the sewage chamber 8 through the drainage pump 20. The liquid pipe 21 is connected to the external sewage collection device, and the drainage pump 20 is used to discharge the sewage in the sewage chamber 8 into the external sewage collection device. The inner wall of the isolation tank 1 is provided with sound-absorbing cotton for absorbing noise. The isolation tank 1 can absorb noise through the sound-absorbing cotton, thereby reducing noise pollution. A stirring device 2 for stirring the water flow in the cleaning chamber 6 is rotatably installed on the support box 403. The stirring device 2 includes a stirring shaft 202 inserted into the cleaning chamber 6, and at least one pair of stirring shafts 202 are fixedly installed in a circumferential array on the stirring shaft 202. The inclined fan blades 201 for sand and water flow, and the second drive motor 19 for driving the stirring shaft 202 to rotate are fixedly installed on the support box 403, and the second drive motor 19 is electrically connected to the controller 14. When the stirring device 2 is working, the stirring shaft 202 can be used to drive the inclined fan blades 201 to stir the water flow and sand and gravel, thereby driving the sand and gravel to roll to achieve the purpose of cleaning, and in the process of rolling, the sand and gravel will also splash upward under the action of centrifugal force and the upward force of the inclined fan blades 201 into the unit cavity 302 of the transfer device 3.

[0037] See also Figure 3 , Figure 4 , Figure 5 and Figure 6 The water supply device 5 includes at least one water supply pump 501 fixedly mounted on the upper cover 401, and the water supply pump 501 is connected to an external water supply device through a water supply pipe 503. At least four water spray heads 502 for spraying clean water to the transfer device 3 are installed in a linear array on the upper cover 401 at the position corresponding to each water supply pump 501, and the water spray heads 502 are connected to the output end of the water supply pump 501.

[0038] See also Figure 2 , Figure 5 , Figure 6 and Figure 7 The transfer device 3 is rotatably installed in the cleaning chamber 6, and a first driving motor 9 for driving the transfer device 3 to rotate is fixedly installed on the upper cover 401, a docking chamber 18 corresponding to the transfer device 3 is installed on the upper cover 401, and a discharge pipe 17 is installed on the docking chamber 18, a receiving pipe 16 connected to the cleaning chamber 6 is installed on the support box 403, and the receiving pipe 16 is connected to the discharge pipe 17 on the adjacent unit cleaning device 4, the transfer device 3 includes a rotating shaft 304 fixedly installed on the output end of the first driving motor 9, and a rotating frame 305 is fixedly installed on the rotating shaft 304, and the rotating frame 305 is divided into at least four unit chambers 302 for scooping sand and gravel in an annular array by a partition plate, and the transfer device 3 can be arranged at the first driving motor 9 is driven to rotate at a constant speed. When the stirring device 2 stirs the sand and gravel upward, the sand and gravel on the uppermost layer will splash into the unit cavity 302 at the bottom of the transfer device 3. Then, the sand and gravel will be rotated to the highest point along with the unit cavity 302. Then, when approaching the docking cavity 18, they will be thrown into the docking cavity 18 under the action of centrifugal force. Then, the sand and gravel will slide from the docking cavity 18 to the discharge pipe 17 and be discharged into the unit cleaning device 4 of the next level, or directly discharged into the conical discharge port 11 and discharged through the conical discharge port 11. The receiving pipe 16 can deliver the sand and gravel sent from the outside or the sand and gravel sent from the upper unit cleaning device 4 into the cleaning cavity 6, so as to facilitate the stirring and cleaning of the stirring device 2.

[0039] See also Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 and Figure 6 The controller 14 is installed on the base 13, and the controller 14 is electrically connected to the first drive motor 9 and the drainage pump 20 respectively. The controller 14 is an industrial computer or a PLC controller, and a liquid level sensor for detecting the water level in the cleaning chamber 6 and electrically connected to the controller 14 is provided in the cleaning chamber 6.

[0040] When the sand and gravel cleaning device provided by the present invention is in use, the sand and gravel are sent from the receiving pipe 16 of the uppermost unit cleaning device 4 into the cleaning chamber 6 through the population or other equipment, and at the same time, the water supply pump 501 in each unit cleaning device 4 evenly sprays clean water into the unit cavity 302 through multiple water spray heads 502, and the clean water will wash the sand and gravel in the unit cavity 302, and will also flow directly into the cleaning chamber 6 along the transfer device 3. A liquid level sensor is installed in the cleaning chamber 6, so that it is convenient to control the working status of the water supply pump 501 and the drainage pump 20 to maintain the liquid level height, and then stir The mixing device 2 is driven by the second driving motor 19 to mix the sand and the clean water. During the mixing process, the clean water washes away the impurities on the surface of the sand and the gravel. At the same time, the sand and the gravel are pushed to the top of the cleaning chamber 6 by the centrifugal force and the thrust generated by the inclined blades 201, so that they can splash into the unit chamber 302. These ensure that the sand and the gravel that can enter the unit chamber 302 must have been washed and cleaned by the water flow, and the sand and the gravel fed by the receiving pipe 16 will not be directly fed into the unit chamber 302, thereby ensuring the cleaning quality and efficiency. The sand and gravel will directly enter the bottom of the cleaning chamber 6 from the side of the cleaning chamber 6, so that the newly fed sand and gravel will be cleaned and sent to the unit chamber 302 only after the sand and gravel that have entered the cleaning chamber 6 first are cleaned, which further avoids the sand and gravel that are not cleaned directly entering the unit chamber 302 due to the disorder of the cleaning sequence. The sand and gravel that enters the unit chamber 302 will be sent to the docking chamber 18 by the transfer device 3 and then discharged to the receiving pipe 16 of the next-level unit cleaning device 4 through the discharge pipe 17, and the discharge pipe 17 of the unit cleaning device 4 at the lowest level will The sand and gravel are directly discharged into the conical discharge port 11, and the entire sand and gravel cleaning process is completed in the closed unit cleaning device 4, so that the transfer device 3 and the stirring device 2 can work at a higher speed without worrying about accidents caused by splashing sand and gravel and water flow, so that a higher cleaning efficiency can be obtained, and the unit cleaning device 4 can also be connected in series in multiple stages in the vertical direction, so that the sand and gravel can be cleaned through multi-stage cleaning, thereby saving time, and effectively isolating noise, and also effectively preventing sand and gravel and water from splashing, so that the cleaning process is safer. The existing sand and gravel cleaning equipment solves the problems of low cleaning efficiency, large floor space, and serious noise pollution, and can effectively improve the cleaning efficiency of sand and gravel.

[0041] For example 2, please refer to Figure 1 and Figure 2On the basis of the first embodiment, a storage box 15 for temporarily storing sand and gravel is provided on the top of the isolation tank 1, and the storage box 15 is installed with an external feeding device through a feeding port 10, a discharge pipe 17 is provided at the bottom of the isolation tank 1 corresponding to the conical discharge port 11 for discharging sand and gravel, and a maintenance manhole 12 is provided on the isolation tank 1 for convenient maintenance of the interior of the isolation tank 1, and sand and gravel can be transported into the storage box 15 by a bucket elevator or a conveyor belt, and then the sand and gravel are sent to the receiving pipe 16 of the unit cleaning device 4 at the uppermost level through the bottom of the storage box 15, The setting of the maintenance population 12 can facilitate maintenance personnel to quickly repair the equipment, so that there is no need to disassemble the entire equipment for maintenance, which reduces the difficulty of maintenance. When the internal part of a certain level unit cleaning device 4 is damaged, it is only necessary to temporarily replace the series connection between the receiving pipe 16 and the discharge pipe 17, so as to skip the level unit cleaning device 4 and enable the equipment to quickly resume working state. The maintenance personnel only need to perform in-situ maintenance on the damaged level unit cleaning device 4, so as to minimize the impact of maintenance work on the normal operation of the equipment. It further solves the problems of low cleaning efficiency, large floor space, and serious noise pollution of the existing sand and gravel cleaning equipment, and can effectively improve the cleaning efficiency of sand and gravel.

[0042] For example 3, please refer to Figure 2 , Figure 5 , Figure 6 and Figure 7 On the basis of the second embodiment, a shovel plate 301 for scooping up sand and gravel and preventing it from falling is arranged outside the unit cavity 302, and the outer wall of the shovel plate 301 is fitted with the upper cover 401, and a drainage filter 303 for discharging the water in the unit cavity 302 into the cleaning cavity 6 is arranged at the bottom of the unit cavity 302, and the drainage filter 303 and the unit cavity 302 are connected by detachable bolts. The arrangement of the shovel plate 301 can prevent the sand and gravel splashing in the unit cavity 302 from falling out of the unit cavity 302 easily, so that the cleaned sand and gravel can be collected quickly and effectively, and the drainage filter 303 can discharge the water in the unit cavity 302 back into the cleaning cavity 6 before the unit cavity 302 rotates to the position of docking with the docking cavity 18, thereby preventing the sewage from entering the docking cavity 18 and polluting the next-level unit cleaning device 4 through the discharge pipe 17, thereby effectively realizing the control of sewage and improving the efficiency of multi-stage cleaning. It further solves the problems of low cleaning efficiency, large floor space, serious noise pollution and the like of existing sand and gravel cleaning equipment, and can effectively improve the cleaning efficiency of sand and gravel.

[0043] Embodiment 4: Based on Embodiment 3, the present invention further provides a method for using a sand and gravel cleaning device for concrete processing, comprising the following steps:

[0044] Step 1: First, the sand and gravel are sent into the storage box 15 through the bucket elevator, and then discharged into the cleaning chamber 6 of the unit cleaning device 4 located at the top level through the storage box 15. The water supply pump 501 sprays clean water into the unit cavity 302 evenly through multiple water spray heads 502. The clean water will wash the sand and gravel in the unit cavity 302 and will also flow directly into the cleaning chamber 6 along the transfer device 3;

[0045] Step 2: Then the stirring device 2 is driven by the second driving motor 19 to mix the sand and the clean water. During the mixing process, the clean water washes the impurities on the surface of the sand and the gravel. At the same time, the sand and the gravel are pushed to the top of the cleaning chamber 6 by the centrifugal force and the thrust generated by the inclined blades 201 so as to splash into the unit chamber 302. The sand and the gravel entering the unit chamber 302 are sent to the docking chamber 18 by the transfer device 3 and then discharged to the receiving pipe 16 of the next-level unit cleaning device 4 through the discharge pipe 17. The discharge pipe 17 of the unit cleaning device 4 at the lowest level directly discharges the sand and the gravel into the conical discharge port 11.

[0046] Step three: When a fault occurs inside the equipment, after checking the faulty unit cleaning device 4, the corresponding material receiving pipe 16 and the discharge pipe 17 are re-connected, thereby skipping the faulty unit cleaning device 4, and incorporating the pre-set spare unit cleaning device 4 into the production series sequence. The equipment then continues to operate normally, and the maintenance personnel repair the faulty unit cleaning device 4 through the maintenance manhole 12. After the maintenance is completed, the unit cleaning device 4 of this level can be reincorporated into the production series sequence, thereby reducing the maintenance process's occupancy of the equipment's normal working time.

[0047] Although the above describes the illustrative specific implementation methods of the present application so that technicians in this technical field can understand the present application, the present application is not limited to the scope of the specific implementation methods. For ordinary technicians in this technical field, as long as various changes are within the spirit and scope of the present application defined and determined by the attached claims, all application creations using the concept of the present application are protected.

Claims

1. A sand and gravel cleaning device for concrete processing, characterized in that: include: An isolation tank (1), wherein the isolation tank (1) is fixed on a base (13); A unit cleaning device (4), wherein at least two unit cleaning devices (4) for cleaning sand and gravel are installed in series from top to bottom in the isolation tank (1), and the unit cleaning device (4) comprises a mounting frame (402) fixedly mounted on the isolation tank (1), and a support box (403) is provided at the bottom of the mounting frame (402), and an upper cover (401) is provided at the top of the support box (403), the support box (403) is divided into a cleaning chamber (6) and a sewage chamber (8) by a bottom filter screen (7), and water is supplied to the cleaning chamber (6) through a water supply device (5) at the top of the upper cover (401), a drainage pump (20) connected to the sewage chamber (8) is installed on the support box (403), and a stirring device (2) for stirring water flow and sand and gravel in the cleaning chamber (6) is rotatably installed on the support box (403); A transfer device (3), the transfer device (3) being rotatably mounted in a cleaning chamber (6), and a first drive motor (9) for driving the transfer device (3) to rotate being fixedly mounted on an upper cover (401), a docking chamber (18) corresponding to the transfer device (3) being mounted on the upper cover (401), and a discharge pipe (17) being mounted on the docking chamber (18), a receiving pipe (16) communicating with the cleaning chamber (6) being mounted on the support box (403), and the receiving pipe (16) being connected to a discharge pipe (17) on an adjacent unit cleaning device (4); the transfer device (3) comprising a rotating shaft (3) fixedly mounted on an output end of the first drive motor (9) 04), and a rotating frame (305) is fixedly mounted on the rotating shaft (304), and the rotating frame (305) is divided into at least four unit cavities (302) for scooping up sand and gravel in a circular array by partition plates; a shovel plate (301) for scooping up sand and gravel and preventing it from falling is arranged outside the unit cavity (302), and the outer wall of the shovel plate (301) is fitted with the upper cover (401); a drainage filter (303) for discharging water in the unit cavity (302) into the cleaning cavity (6) is arranged at the bottom of the unit cavity (302), and the drainage filter (303) and the unit cavity (302) are connected by detachable bolts; A controller (14), wherein the controller (14) is mounted on the base (13), and the controller (14) is electrically connected to the first drive motor (9) and the liquid displacement pump (20) respectively.

2. A sand and gravel cleaning device for concrete processing according to claim 1, characterized in that: The stirring device (2) comprises a stirring shaft (202) inserted into the cleaning chamber (6), and at least one pair of inclined blades (201) for stirring sand and water are fixedly mounted in a circumferential array on the stirring shaft (202), and a second drive motor (19) for driving the stirring shaft (202) to rotate is fixedly mounted on the support box (403), and the second drive motor (19) is electrically connected to the controller (14).

3. The sand and gravel cleaning device for concrete processing according to claim 1, characterized in that: A storage box (15) for temporarily storing sand and gravel is provided on the top of the isolation tank (1), and the storage box (15) is installed with an external feeding device through a feeding port (10).

4. The sand and gravel cleaning device for concrete processing according to claim 1, characterized in that: The bottom of the isolation tank (1) is provided with a discharge pipe (17) corresponding to the conical discharge port (11) for discharging sand and gravel, and the isolation tank (1) is provided with a maintenance manhole (12) for convenient maintenance of the interior of the isolation tank (1).

5. The sand and gravel cleaning device for concrete processing according to claim 1, characterized in that: The water supply device (5) comprises at least one water supply pump (501) fixedly mounted on the upper cover (401), and the water supply pump (501) is connected to an external water supply device via a water supply pipe (503). At least four water spray heads (502) for spraying clean water toward the transfer device (3) are mounted in a linear array on the upper cover (401) at positions corresponding to each water supply pump (501), and the water spray heads (502) are connected to output ends of the water supply pumps (501).

6. The sand and gravel cleaning device for concrete processing according to claim 1, characterized in that: The output end of the drainage pump (20) is connected to an external sewage collection device via a drainage pipe (21), and sound-absorbing cotton for absorbing noise is provided on the inner wall of the isolation tank (1).

7. The sand and gravel cleaning device for concrete processing according to claim 1, characterized in that: The controller (14) is an industrial computer or a PLC controller, and a liquid level sensor is provided in the cleaning chamber (6) for detecting the water level in the cleaning chamber (6) and is electrically connected to the controller (14).

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