阅读说明：本技术 一种混凝土废料快速处理回收系统 (Quick concrete waste treatment and recovery system ) 是由 杨晓华 杨杰 王文 张文杰 于 2020-07-06 设计创作，主要内容包括：本发明涉及一种混凝土废料快速处理回收系统,其包括清水池和与清水池连通的清洗装置,还包括导料槽、设在导料槽其中一端的高压冲水装置、与导料槽的另一端连通的一级分离装置、设在一级分离装置下方的第一集料装置、设在一级分离装置下方用于储存从一级分离装置中流出的砂浆水的一级蓄浆池、设在一级蓄浆池内的第一砂浆泵、与第一砂浆泵连通的二级分离装置、设在二级分离装置下方的第二集料装置、设在二级分离装置下方用于储存从二级分离装置中流出的砂浆水的二级蓄浆池、设在二级蓄浆池中的第二砂浆泵、与第一砂浆泵连通的三级分离装置、设在三级分离装置下方的第三集料装置和与三级分离装置连通的过滤装置。本发明具有减少资源浪费的优点。(The invention relates to a rapid treatment and recovery system for concrete waste, which comprises a clean water tank and a cleaning device communicated with the clean water tank, the device comprises a guide chute, a high-pressure flushing device arranged at one end of the guide chute, a primary separating device communicated with the other end of the guide chute, a first collecting device arranged below the primary separating device, a primary slurry storage tank arranged below the primary separating device and used for storing the slurry water flowing out of the primary separating device, a first slurry pump arranged in the primary slurry storage tank, a secondary separating device communicated with the first slurry pump, a second collecting device arranged below the secondary separating device, a secondary slurry storage tank arranged below the secondary separating device and used for storing the slurry water flowing out of the secondary separating device, a second slurry pump arranged in the secondary slurry storage tank, a tertiary separating device communicated with the first slurry pump, a third collecting device arranged below the tertiary separating device and a filtering device communicated with the tertiary separating device. The invention has the advantage of reducing resource waste.)

1. The utility model provides a concrete waste material rapid processing recovery system, includes clean water basin (11) and belt cleaning device (12) with clean water basin (11) intercommunication, its characterized in that: the mortar collecting device comprises a guide chute (13), a high-pressure flushing device (14) arranged at one end of the guide chute (13), a primary separating device (21) communicated with the other end of the guide chute (13), a first aggregate device (22) arranged below the primary separating device (21), a primary mortar storage tank (31) arranged below the primary separating device (21) and used for storing mortar water flowing out of the primary separating device (21), a first mortar pump (32) arranged in the primary mortar storage tank (31), a secondary separating device (41) communicated with the first mortar pump (32), a second aggregate device (42) arranged below the secondary separating device (41), a secondary mortar storage tank (51) arranged below the secondary separating device (41) and used for storing mortar water flowing out of the secondary separating device (41), a second mortar pump (52) arranged in the secondary mortar storage tank (51), and a first mortar pump (52), A third-stage separation device (61) communicated with the first mortar pump (32), a third collecting device (62) arranged below the third-stage separation device (61) and a filtering device (71) communicated with the third-stage separation device (61);

the filter device (71) is communicated with the clean water tank (11);

the bottoms of the first material collecting device (22), the second material collecting device (42) and the third material collecting device (62) are respectively provided with a water collecting device (81) communicated with the high-pressure flushing device (14).

2. The system for rapidly treating and recycling the concrete waste according to claim 1, wherein: the material scraping device is characterized in that a material scraping frame (131) with the side surface abutting against the inner wall of the material guide groove (13) is arranged in the material guide groove (13), and an electric push rod (132) driving the material scraping frame (131) to reciprocate along the length direction of the material guide groove (13) is arranged on the material guide groove (13).

3. The system for rapidly treating and recycling the concrete waste according to claim 1, wherein: the guide chute (13) is arranged in a downward inclined mode, and one end of the high-pressure flushing device (14) is higher than the discharge end of the guide chute (13).

4. The system for rapidly treating and recycling the concrete waste according to claim 1 or 3, wherein: the high-pressure flushing device (14) comprises a recovery tank (142) internally provided with a high-pressure water pump (141), a timing switch (143) electrically connected with the high-pressure water pump (141) and a flushing pipe (144) in flange connection with the high-pressure water pump (141);

the drainage end of the flushing pipe (144) extends into the material guide groove (13).

5. The system for rapidly treating and recycling the concrete waste according to claim 1, wherein: the primary separation device (21) comprises an ore spiral screen (211) and a belt conveyor (212), wherein one end of the ore spiral screen (211) is communicated with the material guide groove (13), and the belt conveyor is abutted to the discharge end of the ore spiral screen (211);

the first material collecting device (22) is positioned below the belt conveyor (212), and the primary slurry storage tank (31) is positioned below the ore spiral screen (211).

6. The system for rapidly treating and recycling the concrete waste according to claim 1, wherein: the secondary separation device (41) comprises a slurry tank (411) communicated with the first mortar pump (32) and a spiral sand washer (412) fixedly connected with the slurry tank (411);

the second aggregate device (42) is positioned below the discharge end of the spiral sand washer (412).

7. The system for rapidly treating and recycling the concrete waste according to claim 6, wherein: the spiral sand washer (412) is a double-spiral sand washer.

8. The system for rapidly treating and recycling the concrete waste according to claim 1, wherein: the three-stage separation device (61) comprises a cyclone separator (611) and a discharge valve (612) arranged at the bottom of the cyclone separator (611).

9. The system for rapidly treating and recycling the concrete waste according to claim 1, wherein: the filter device (71) is a screen filter.

Technical Field

The invention relates to the technical field of concrete waste treatment and recovery, in particular to a rapid treatment and recovery system for concrete waste.

Background

At present, along with the requirement of China on the petals of a concrete inspection enterprise and the development requirement of the enterprise, the treatment and the recovery of commercial concrete waste are more and more emphasized. The conventional commercial concrete is transported to a construction site by a tank truck after being mixed and is unloaded, and concrete waste can be generated in a mixer for a mixer truck and a commercial concrete mixing plant. Therefore, as the environmental protection in the field of building materials is further increased, the concrete waste materials are required to be treated and recycled. The traditional recycling of the waste material of the fresh concrete adopts a sand-stone separator to separate sand and stone, but a large amount of waste water and waste slag are generated at the same time, and the discharge rate of waste pollutants is about 40 percent.

The utility model discloses a current utility model patent that publication number is CN206325689U, it discloses a concrete recycling system, and it includes cement tank car, baffle box, sand and stone separator and pond, is provided with the suction pump in the pond, and the suction pump is connected parallelly connected first pipeline, second pipeline and third pipeline and is carried the moisture in the suction pump for cement tank car, baffle box and sand and stone separator respectively, and sand and stone separator carries sand and stone separator waste water to the pond through the fourth pipeline. The system solves the problem of recovering sand, stone and part of water in the waste concrete. However, the sand is divided into fine sand and coarse sand, and the separation degree of the concrete recovery system to the sand and the stones is not enough, so that the recovered mortar cannot meet the construction requirement, and the aggregate is wasted because the mortar needs to be transported in a centralized manner for landfill. In addition, this concrete recovery system is at the in-process of retrieving the concrete, can moisture in the sand that obtains of separation, the stone heap, and the pile-up time is overlength, and moisture can evaporate and lose, and too short can cause grit drying process time to lengthen, and these waters can flow to the factory in, cause the waste of water resource.

Therefore, a system for rapidly treating and recycling concrete waste is needed to solve the above problems.

Disclosure of Invention

Aiming at the defects in the prior art, the invention aims to provide a system for quickly treating and recycling concrete waste, which can improve the separation degree of recycled aggregate so as to improve the utilization rate of the recycled aggregate, can fully recycle water resources and has the advantage of reducing resource waste.

The above object of the present invention is achieved by the following technical solutions:

a rapid treatment and recovery system for concrete waste, which comprises a clean water tank and a cleaning device communicated with the clean water tank, the device comprises a guide chute, a high-pressure flushing device arranged at one end of the guide chute, a primary separating device communicated with the other end of the guide chute, a first collecting device arranged below the primary separating device, a primary slurry storage pool arranged below the primary separating device and used for storing mortar water flowing out of the primary separating device, a first mortar pump arranged in the primary slurry storage pool, a secondary separating device communicated with the first mortar pump, a second collecting device arranged below the secondary separating device, a secondary slurry storage pool arranged below the secondary separating device and used for storing mortar water flowing out of the secondary separating device, a second mortar pump arranged in the secondary slurry storage pool, a tertiary separating device communicated with the first mortar pump, a third collecting device arranged below the tertiary separating device and a filtering device communicated with the tertiary separating device;

the filter device is communicated with the clean water tank;

and the bottoms of the first material collecting device, the second material collecting device and the third material collecting device are provided with water collecting devices communicated with the high-pressure flushing device.

By adopting the technical scheme, the concrete tank car and the mixer flow into the guide chute after being washed by the washing device, the sand-stone slurry is separated by the first-stage separation device, the second-stage separation device and the third-stage separation device in sequence, the first-stage separation device separates to obtain crushed stone and is collected by the first collecting device, the second-stage separation device separates to obtain coarse sand and is collected by the second collecting device, and the third-stage separation device separates to obtain fine sand and is collected by the third collecting device. And the bottom of the first aggregate device, the second aggregate device and the third aggregate device is provided with a water collecting device communicated with the high-pressure flushing device, the water collecting device filters and collects the water in the crushed stone, the coarse sand and the fine sand, and the water is recycled in the high-pressure flushing device, the recycled material can be selected according to the thickness grade, the waste of raw materials is reduced, and the resource waste is reduced.

The present invention in a preferred example may be further configured to: the material scraping device is characterized in that a material scraping frame with a side face abutting against the inner wall of the material guide groove is arranged in the material guide groove, and an electric push rod for driving the material scraping frame to reciprocate along the length direction of the material guide groove is arranged on the material guide groove.

By adopting the technical scheme, the scraping frame can be pushed to reciprocate along the length direction of the guide chute by the arrangement of the electric push rod, so that when some gravels with larger particle sizes in the guide chute are not washed away by water flow discharged by the high-pressure flushing device, the scraping frame can be used for cleaning the interior of the guide chute, and the recovery effect of the invention is better.

The present invention in a preferred example may be further configured to: the baffle box is arranged in a downward inclined mode, and one end of the high-pressure flushing device is higher than the discharge end of the baffle box.

Through adopting above-mentioned technical scheme, the baffle box slope sets up for the grit slurry flows more easily and is washed away under the effect of gravity in the baffle box.

The present invention in a preferred example may be further configured to: the high-pressure flushing device comprises a recovery tank internally provided with a high-pressure water pump, a timing switch electrically connected with the high-pressure water pump and a flushing pipe connected with a flange of the high-pressure water pump;

and the drainage end of the flushing pipe extends into the guide chute.

Through adopting above-mentioned technical scheme, the accumulator is used for receiving the water of collecting from water-collecting device to take out water to wash water pipe department through high pressure water pump, the water pressure that produces by the wash water pipe is screened the grit thick liquid from the baffle box towards the ore spiral screen. The timing switch can start the high-pressure water pump after the high-pressure water pump is powered on at regular time without manual starting.

The present invention in a preferred example may be further configured to: the primary separation device comprises an ore spiral screen and a belt conveyor, wherein one end of the ore spiral screen is communicated with the material guide groove, and the belt conveyor is abutted against the discharge end of the ore spiral screen;

the first material collecting device is located below the belt conveyor, and the primary slurry storage tank is located below the ore spiral screen.

Through adopting above-mentioned technical scheme, the ore spiral screen can carry the ore spiral directly over the belt feeder, on falling belt conveyor, the rubble after the screening falls on belt conveyor, and the sand pulp liquid falls in the one-level holds the thick liquid pond from the ore spiral screen. After this step, the crushed stone in the sand slurry is separated.

The present invention in a preferred example may be further configured to: the secondary separation device comprises a slurry tank communicated with the first slurry pump and a spiral sand washer fixedly connected with the slurry tank;

the second collecting device is positioned below the discharge end of the spiral sand washer.

Through adopting above-mentioned technical scheme, as much as possible sand thick liquid is stored in setting up of thick liquid basin, and the spiral sand washing machine can be carried coarse sand to the second device that gathers materials in, and the fine sand thick liquid then flows to the second grade and holds in the thick liquid pond. After the step, coarse sand in the sand slurry can be separated.

The present invention in a preferred example may be further configured to: the spiral sand washer is a double-spiral sand washer.

By adopting the technical scheme, the double-helix sand washer adopts a double-auger conveying structure, and compared with a single-helix sand washer, the double-auger conveying structure has higher efficiency, so that the treatment and recovery speed of the invention can be improved.

The present invention in a preferred example may be further configured to: the three-stage separation device comprises a cyclone separator and a discharge valve arranged at the bottom of the cyclone separator.

Through adopting above-mentioned technical scheme, cyclone can will make the fine sand in the fine sand thick liquid take place the friction with the separator inner wall under the centrifugal force effect and consume the energy, fall to the bottom under the action of gravity at last to the fine sand of retrieving in cyclone is cleared up through the discharge valve at last and is collected, makes it fall to in the third aggregate unit. After the step, the fine sand in the sand slurry can be separated.

The present invention in a preferred example may be further configured to: the filtering device is a screen filter.

By adopting the technical scheme, the screen filter has the advantages of low price and good filtering effect, and can meet the requirement of filtering impurities in water flowing out of the cyclone separator.

In summary, the invention includes at least one of the following beneficial technical effects:

1. after the sand slurry is screened by the first separating device, the second separating device and the third separating device, crushed materials, coarse sand materials and fine sand materials in the sand slurry can be sequentially separated, so that the doping of coarse sand and fine sand is avoided, and the requirement for recycling cannot be met, so that the waste of raw materials is caused;

2. water in the crushed stone, the coarse sand and the fine sand is recycled through the water collecting devices at the bottoms of the first collecting device, the second collecting device and the third collecting device, so that the utilization rate of water resources is improved, and further, the waste of the water resources is reduced;

3. the spiral sand washer is a double-spiral sand washer, and the arrangement ensures that the concrete waste double-spiral sand washer adopts a double-auger conveying structure, so that the efficiency is higher compared with that of a single-spiral sand washer, and the treatment and recovery speed of the invention can be improved.

Drawings

Fig. 1 is a schematic view of the overall structure of the embodiment of the present invention.

Fig. 2 is a schematic view showing a structure of a material guide chute according to an embodiment of the present invention.

Fig. 3 is a schematic structural view for showing the first aggregate device.

Fig. 4 is a schematic view for showing the structure of the two-stage separation apparatus.

Fig. 5 is a partially enlarged schematic view of a portion a in fig. 1.

In the figure, 11, a clean water tank, 12, a cleaning device, 13, a guide chute, 14, a high-pressure flushing device, 21, a first-stage separation device, 22, a first aggregate device, 31, a first-stage slurry storage tank, 32, a first mortar pump, 41, a second-stage separation device, 42, a second aggregate device, 51, a second-stage slurry storage tank, 52, a second mortar pump, 61, a third-stage separation device, 62, a third aggregate device, 71, a filtering device, 81, a water collecting device, 131, a scraping frame, 132, an electric push rod, 141, a high-pressure water pump, 142, a recovery tank, 143, a timing switch, 144, a flushing pipe, 211, an ore spiral screen, 212, a belt conveyor, 411, a slurry tank, 412, a spiral sand washer, 611, a cyclone separator, 612 and a discharge valve.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings.

Referring to fig. 1, the system for rapidly treating and recycling concrete waste disclosed by the invention comprises a clean water tank 11, a cleaning device 12, a material guide chute 13, a high-pressure flushing device 14, a primary separation device 21, a first material collecting device 22, a primary slurry storage tank 31, a first mortar pump 32, a secondary separation device 41, a second material collecting device 42, a secondary slurry storage tank 51, a second mortar pump 52, a third separation device 61, a third material collecting device 62, a filtering device 71 and a water collecting device 81.

The cleaning device 12 is communicated with the clean water tank 11, the high-pressure flushing device 14 is arranged at one end of the guide chute 13, the primary separating device 21 is communicated with the other end of the guide chute 13, the first aggregate device 22 is arranged below the primary separating device 21, the primary slurry storage tank 31 is also arranged below the first aggregate device 22, and the first mortar pump 32 is positioned in the primary slurry storage tank 31. In addition, the second-stage separation device 41 is communicated with the first mortar pump 32, the second collecting device 42 is arranged below the second-stage separation device 41, the second reservoir 51 is also arranged below the second-stage separation device 41, the second mortar pump 52 is arranged in the second reservoir 51, the third-stage separation device 61 is communicated with the first mortar pump 32, the third collecting device 62 is arranged below the third-stage separation device 61, and the filtering device 71 is communicated with the third-stage separation device 61. Finally, the water collecting device 81 is disposed at the bottom of the first, second and third collecting devices 22, 42 and 62.

First, the clean water tank 11 is used as the water source of the whole system, and a water tower or a reservoir dug on the ground can be used. The clean water tank 11 may be in communication with the cleaning device 12 using a water pipe.

The cleaning device 12 mainly comprises a high-pressure cleaning machine and a water gun or a water spraying pipe connected with the high-pressure cleaning machine through a water pipe, the high-pressure cleaning machine pumps water from the clean water tank 11 into the high-pressure cleaning machine, then the water gun or the water spraying pipe is manually used for washing a tank car or a concrete mixer for transporting concrete, and sand slurry after washing is discharged into the guide chute 13.

Referring to fig. 1 and 2, the material guiding chute 13 may be a stainless steel box with an open upper surface and a cover plate, and is placed on the ground in an inclined manner, for this reason, in this embodiment, the end of the material guiding chute 13 where the high pressure flushing device 14 is located is higher than the discharge end of the material guiding chute 13. The sand slurry produced when the tanker or concrete mixer is flushed can be discharged into the chute 13. In addition, a scraping frame 131 and an electric push rod 132 are provided in the material guide chute 13.

The material scraping frame 131 is symmetrically provided with notches which are clamped on two side plates of the material guide chute 13, the side surface of the material scraping frame 131 is abutted against the inner wall of the material guide chute 13, the material scraping frame can slide back and forth along the length direction of the material guide chute 13, and the broken stone in the material guide chute 13 is pushed while sliding. The electric push rod 132 is fixedly mounted on the side plate of the material guiding chute 13 and one end of the high-pressure flushing device 14 by bolts, and after the electric push rod 132 is powered on and started, the telescopic end of the electric push rod 132 can push the scraping frame 131 to reciprocate along the length direction of the material guiding chute 13.

The high-pressure flushing device 14 is used for impacting the sand accumulated in the guide chute 13, separating the sand from the stone, and flushing sand slurry into the primary separation device 21. The high pressure flush device 14 includes a high pressure water pump 141, a recovery tank 142, a time switch 143, and a flush pipe 144.

The high pressure water pump 141 is used for pumping water into the flushing pipe 144 so that the flushing pipe 144 discharges water to impact sand, and the high pressure water pump 141 is a water suction pump, two in number in the embodiment, and is respectively placed in the recovery tank 142 and the clean water tank 11. The recycling tank 142 is disposed on the ground, and a water storage tank may be used as recycling water. The recovery tank 142 is communicated with the water collecting device 81 through a water pipe. The timer 143 is an electronic component that opens, interrupts, or allows the current to flow to other circuits for a certain period of time based on time variation, and in this embodiment, an electronic timer may be used, and the timer is electrically connected to the high pressure water pump 141 through a wire. One end of the flushing pipe 144 is connected to the high pressure water pump 141 by a flange, and the other end thereof can pass through one side surface of the material guiding chute 13 and be fixed to a side plate of the material guiding chute 13 by welding or clamping. The water discharge end of the water discharge pipe extends into the material guide groove 13.

The primary separating device 21 includes a spiral ore screen 211 having one end communicating with the material guide chute 13, and a belt conveyor 212 abutting against a discharge end of the spiral ore screen 211. Wherein the ore spiral screen 211 separates crushed stone from the sand slurry, and the crushed stone falls onto the belt conveyor 212 and is carried by the belt conveyor 212 to the first aggregate device 22.

Wherein, the ore spiral screen 211 mainly comprises a driving device, a screen cylinder, a rotating shaft, a packing auger structure, a water spraying and washing device and the like. After the auger structure is driven by the driving device to rotate, and the auger structure inside drives the gravels to move upwards, the slurry containing coarse sand and fine sand is filtered from the sieve pores of the sieve cylinder and flows into the primary slurry storage tank 31 below the ore spiral sieve 211.

The belt conveyor 212 is placed inclined on the ground, a part of the conveyor belt of the belt conveyor 212 is located right below the discharge end of the ore spiral screen 211, and crushed stones are transported upward from the belt conveyor 212 and finally fall into the first aggregate device 22.

Referring to fig. 1 and 3, the first aggregate device 22 may employ an open-topped barrel for collecting crushed material. Water is attached to the crushed stone, so that it is understood that water is accumulated at the bottom of the first aggregate unit 22. Therefore, the water collecting device 81 is provided at the bottom of the first aggregate device 22 for collecting water in the crushed stone.

The primary slurry storage tank 31 can adopt a water storage cylinder or a groove dug on the ground, and plays a role in storage and transition. The first mortar pump 32 is placed in the first-stage mortar storage tank 31, the first mortar pump 32 can adopt a sewage pump, and the sewage pump mainly comprises an impeller, a pump body, a pump shaft, a bearing, a sealing ring, a stuffing box and the like. The first slurry pump 32 is capable of pumping the slurry containing sand from the primary slurry reservoir 31 to the secondary separation device 41.

Referring to fig. 4, the secondary separation device 41 is used for separating coarse sand from a mortar liquid, and mainly includes a mortar tank 411 communicated with the first mortar pump 32 and a spiral sand washer 412 fixedly connected to the mortar tank 411. The slurry tank 411 may be a water storage tank surrounded by a metal plate, and is located at the tail of the spiral sand washer 412, and a part of the spiral sand washer 412 is located in the slurry tank 411.

The spiral sand washer 412 is mainly composed of a cylinder, a driving device and a packing auger structure. The driving device drives the auger structure to rotate, and the auger structure drives the coarse sand material to move upwards for transportation, and finally falls into the second material collecting device 42 to be recovered. Spiral sand washer 412 is double helix sand washer in this embodiment, and efficiency is higher. It should be understood that the coarse sand in the slurry tank 411 is gathered near the bottom in the slurry tank 411 by gravity, and the fine sand slurry is located at the upper half of the slurry tank 411, and as the sand slurry continuously flows in, the fine sand slurry overflows and flows to the secondary slurry reservoir 51. Of course, a through hole may be formed in the side plate of the slurry tank 411 near the top for flowing out the fine slurry.

The secondary slurry storage tank 51 can adopt a water storage cylinder or a groove dug on the ground, and plays a role in storage and transition. A second mortar pump 52 is arranged in the second-stage mortar storage pool 51, the second mortar pump 52 can also adopt a sewage pump, and the sewage pump can pump the mortar containing fine sand into the third-stage separation device. The second mortar pump 52 is communicated with the third stage separating device 61 through a water pipe of a screw thread link or a flange connection.

Referring to fig. 1 and 5, the three-stage separating apparatus 61 includes a cyclone 611 and a discharge valve 612 provided at the bottom of the cyclone 611. The cyclone separator 611 is of a vertical cone structure, and the inside of the cyclone separator is axially divided into a liquid collection area, a cyclone separation area, a purification chamber area and the like. Cyclone sub-components are arranged in the cyclone separator 611, are uniformly distributed in the circumferential direction and are fixed through an upper tube plate and a lower tube plate, equipment is supported by a skirt, and the end enclosure is a high-pressure-resistant elliptical end enclosure. The fine sand is separated from the slurry by the centrifugal force generated when the gas-solid mixture rotates at a high speed, and is accumulated at the bottom of the cone and finally discharged by the discharge valve 612.

The discharge valve 612 is composed of a discharge pipe and a flap valve or a gate valve, and when the fine sand is accumulated to a certain degree, the flap valve or the gate valve is opened to enable the fine sand to fall into the third material collecting device 62 below. The third aggregate device 62 may be a cylinder or a box with an open upper end for collecting water in the fine sand. Of course, the bottom of the third aggregate device 62 is also provided with a water collecting device 81.

The filtering device 71 is a screen filter, and both ends thereof are respectively communicated with the cyclone 611 and the high-pressure flushing device 14 through water pipes. The screen filter mainly includes a filter cartridge and a filter element disposed in the filter cartridge, etc., and water discharged from the cyclone 611 passes through the screen filter, some particulate impurities in the water are adsorbed on the filter element and filtered, and finally, clean water flows back to the clean water tank 11. It will be appreciated that the water flowing back into the clean water basin 11 may flow under gravity, as long as the filter device is positioned at a level higher than the level of the clean water basin 11.

The water collecting device 81 is arranged at the bottom of the first aggregate device 22, the second aggregate device 42 and the third aggregate device 62, and mainly comprises a filter screen, a water collecting box and the like, the aperture of the filter screen can be adjusted as required, the crushed stone can adopt the filter screen with large aperture, and so on, and the aperture of the filter screen used by the fine sand material is minimum. The water flows through the screen into the catch box, and the catch box is in communication with a recovery tank 142 in the high pressure flush device 14 through a water pipe.

In this embodiment, the first, second and third aggregate devices 22, 42 and 62 can be positioned at a height above the clean water basin 11 or the recovery tank 142 in order to recover and circulate the water flow under gravity. Likewise, the filter 71 is also positioned above the clean water tank 11 or the recovery tank 142.

The implementation principle of the embodiment is as follows:

after the concrete tank truck finishes unloading and the mixer finishes operating, a large amount of residual concrete materials can be left in the tank truck and the mixer, and the concrete materials can be directly discharged after being washed. The sandstone slurry formed after washing is alkaline, which pollutes the environment and causes waste of raw materials and water resources. Therefore, a system for rapidly treating and recycling the concrete waste in the above embodiment is required.

Firstly, the tank car and the mixer are cleaned by the cleaning device 12 to form sand slurry, the sand slurry is discharged into the material guide chute 13, the sand slurry flows into the primary separation device 21 under the impact action of water flow discharged by the high-pressure flushing device 14 and the gravity action, the crushed material is separated from the sand slurry through the screening of the primary separation device and is recycled into the first material collecting device 22, the water in the crushed material flows into the water collecting device 81 and then flows back into the recycling tank 142 of the high-pressure flushing device 14 from the water collecting device 81, and the sand slurry flows into the primary slurry storage tank 31.

Similarly, the mortar liquid passes through the second-stage separator 41 and the third-stage separator 61 in sequence under the pumping of the first mortar pump 32 and the second mortar pump 52, and then the coarse mortar is recovered to the second aggregate device 42 and the third aggregate device 62, respectively. And the water in the coarse sand material and the fine sand material flows into the water collecting device 81 and flows back to the recovery tank 142 for recycling, so that the waste of water resources is avoided. And the water discharged from the third-stage separation device 61 is filtered by the filtering device 71 and then returned to the cleaning pool for recycling. In addition, the recycled crushed stone, coarse sand and fine sand can be proportioned according to the mass of the concrete for reuse, and the waste of resources is reduced.

The embodiments of the present invention are preferred embodiments of the present invention, and the scope of the present invention is not limited by these embodiments, so: all equivalent changes made according to the structure, shape and principle of the invention are covered by the protection scope of the invention.