Environment-friendly treatment device for waste concrete slurry and treatment method of environment-friendly treatment device

Abstract

The invention relates to the technical field of sewage treatment, and discloses an environment-friendly treatment device for waste concrete slurry and a treatment method thereof.The environment-friendly treatment device comprises a first bottom plate, a purification block is fixedly connected to one side of the top of the first bottom plate, and a vibration assembly is arranged in the purification block. In the invention, the alkaline characteristic of the waste slurry can cause the inhibition and even death of part of sensitive strains in the active sludge and the reduction of the pollutant degradation efficiency, and the hydrogel contracts to cause the outflow of acidic substances in the sealing ball because the interior of the first liquid storage bin is an alkaline environment, so that the alkaline environment in the first liquid storage bin is neutralized, and the degradation efficiency of pollutants is improved. On the contrary, the hydrogel is ejected out to drive a third spoiler to seal the bottom of the sealing ball, so that an acidic ring shape in the purification block is reduced, the purification block is in a reaction environment suitable for active sludge, microorganisms are prevented from being exposed to an inhibitory pH environment for a long time through dynamic adjustment, the sludge aging and disintegration risk is reduced, and the treatment capacity of the system is maintained.

Description

Technical Field

[0001] This application relates to the technical field of sewage treatment, and particularly relates to an environmental protection treatment device and a treatment method for concrete waste slurry. Background Art

[0002] In the context of the great development of urbanization, the development and application of resource-saving and environment-friendly products have become increasingly common. Concrete mixing plants play a core role in the commercial concrete industry and are responsible for supplying commercial concrete for housing construction projects and infrastructure construction projects. After the concrete mixer truck transports the concrete to the construction site and finishes pouring and returns to the mixing plant, it is necessary to add water into the tank to wash out the residual concrete in the tank and perform sand and gravel separation treatment, which will generate a large amount of wastewater and waste slurry. These wastewater and waste slurry are very difficult to treat. Since the waste slurry contains solid particles such as cement, sand, and aggregates, if the waste slurry is directly discharged outdoors, it will deteriorate the water quality of natural water bodies and affect the living environment of aquatic organisms.

[0003] During the working process of the existing concrete waste slurry treatment device, it is usually unable to control the internal reaction environment. During the purification process, due to the self-characteristics of concrete, its slurry will be alkaline. Due to the alkaline characteristics of the waste slurry, some sensitive strains in the activated sludge will be inhibited or even die, resulting in a decrease in the degradation efficiency of pollutants, thus affecting the purification effect. Secondly, the existing waste slurry treatment device purifies and recovers the waste slurry through only one set of processes, and it is impossible to purify the waste slurry to an appropriate water quality according to needs during this process, which may lead to limitations in use. Summary of the Invention

[0004] This application proposes an environmental protection treatment device and a treatment method for concrete waste slurry, which have the advantage of dynamically adjusting the acidity and alkalinity, and are used to solve the problem that the acidity and alkalinity during the reaction cannot be dynamically adjusted in the prior art.

[0005] To achieve the above purpose, this application adopts the following technical solution: An environmental protection treatment device for concrete waste slurry, including a first bottom plate, one side of the top of the first bottom plate is fixedly connected with a purification block, and a vibration component is arranged inside the purification block;

[0006] One side of the top of the purification block is fixedly connected with a second liquid storage bin, and a separation component is arranged on the top of the second liquid storage bin;

[0007] An aeration pump is arranged on one side of the purification block, the aeration pump is fixedly connected with the first bottom plate, and an aeration component is arranged on one side of the aeration pump;

[0008] A first liquid storage bin is provided inside the purification block, and an acid control component is arranged on one side of the top of the inner surface of the first liquid storage bin. The inner circulation and outer circulation of the waste slurry are realized through multiple components, and the waste slurry is purified multiple times to ensure the purification effect.

[0009] Preferably, the vibration component includes a first baffle plate. The first baffle plate is slidably connected to the purification block. One side of the first baffle plate is fixedly connected to a first vibrating screen. A partition plate is arranged on one side of the first baffle plate. The partition plate is slidably connected to the first bottom plate. One side of the partition plate is fixedly connected to a second vibrating screen. Multiple groups of sliding blocks are fixedly connected to both sides of the first vibrating screen and the second vibrating screen. Multiple groups of the sliding blocks are all slidably connected to the inside of the purification block. A triangular support plate is fixedly connected to the top of the first vibrating screen. Two groups of vibration motors are fixedly connected to one side of the triangular support plate. A feed pipe is fixedly connected to one side of the partition plate. The vibration motors drive the first vibrating screen and the second vibrating screen to vibrate, so as to filter the sand and gravel in the concrete and realize the separation of water and stones. The first vibrating screen and the second vibrating screen are connected to each other, so that synchronous vibration can be realized.

[0010] Preferably, the separation component includes a first connecting pipe. The first connecting pipe is fixedly connected to one side of the purification block. One end of the first connecting pipe is fixedly connected to a slurry pump. One end of a rubber hose is fixedly connected to one side of the slurry pump. The other end of the rubber hose is fixedly connected to a hydrocyclone. The rubber hose is tangent to the hydrocyclone. The separated slurry is returned to the first liquid storage bin through a liquid supplement pipe for secondary purification, realizing the circular treatment of the waste slurry, avoiding one-time discharge, and reducing the consumption of chemicals and water resources.

[0011] Preferably, the separation component further includes a second connecting pipe. One end of the second connecting pipe is fixedly connected to one end of the hydrocyclone. The other end of the second connecting pipe is fixedly connected to a second liquid storage bin. A discharge pipe is fixedly connected to the bottom of the second liquid storage bin. A guide block is fixedly connected to the other end of the hydrocyclone. The guide block is vertically arranged inside the purification block, so that the incoming waste slurry can better fall onto the surface of the first vibrating screen.

[0012] Preferably, the aeration component includes a first aeration pipe. The first aeration pipe is fixedly connected to the output end of an aeration pump. A second aeration pipe is fixedly connected to one side of the first aeration pipe. The second aeration pipe is communicated with the first aeration pipe. The farthest end of the first aeration pipe is bent. The aeration pump is started to discharge gas into the first liquid storage bin through the first aeration pipe to promote aerobic biological activities and improve the purification effect.

[0013] Preferably, the acid control component includes a liquid supplement pipe fixedly connected to one side of the bottom of the second liquid storage bin. A positioning column is arranged in the middle of the liquid supplement pipe and fixedly connected to the purification block. A sealing ball is arranged at the bottom of the liquid supplement pipe. A fixing block is movably sleeved outside the sealing ball, and a second flow blocking plate is fixedly connected to the outside of the fixing block.

[0014] Preferably, the acid control component includes a third flow blocking plate arranged at the bottom of the sealing ball. The arc of the third flow blocking plate is equal to that of the sealing ball. The bottom of the third flow blocking plate abuts against a limit sleeve, and a plurality of liquid inlet openings are formed in the outside of the limit sleeve. A hydrogel is arranged inside the limit sleeve and sleeved outside the positioning column.

[0015] Preferably, the acid control component includes a limit bottom plate sleeved outside the positioning column and fixedly connected to the purification block. An acid inlet pipe is fixedly connected to the bottom of the sealing ball and extends outside the purification block. Two groups of support columns are fixedly connected to the bottom of the second liquid storage bin, and the support columns are fixedly connected to the first bottom plate. The acid-base environment inside the purification block is adjusted by the expansion and contraction of the hydrogel.

[0016] Preferably, the second air diffuser pipe is inclined, and after being inclined, the second air diffuser pipe corresponds to the side surface of the second flow blocking plate. After the air is discharged, it can drive the fixing block to rotate to better disperse the acid inside the first liquid storage bin. By arranging the second air diffuser pipe to be inclined, the fixing block can drive itself to rotate while the first liquid storage bin is aerated, so as to throw out the acidic substances inside the sealing ball by centrifugal force.

[0017] Preferably, it includes the following steps:

[0018] S1. The external pump body transports the concrete waste slurry to the top of the second vibrating screen through the feed pipe, and starts the vibrating motor to drive the first vibrating screen and the second vibrating screen to vibrate, so as to filter the sand and gravel in the concrete and realize the separation of water and stone.

[0019] S2. The slurry filtered by the second vibrating screen will fall into the first liquid storage bin and react and purify with the activated sludge inside the first liquid storage bin. At this time, the aeration pump starts to discharge air into the first liquid storage bin through the first air diffuser pipe to promote aerobic biological activities and improve the purification effect.

[0020] S3. During the purification process, due to the alkaline characteristics of the sludge, some sensitive bacteria in the activated sludge will be inhibited or even die, resulting in a decrease in the pollutant degradation efficiency. At this time, since the inside of the first liquid storage tank is an alkaline environment, the hydrogel shrinks, causing the acidic substances inside the sealing ball to flow out, thereby neutralizing the alkaline environment inside the first liquid storage tank. Conversely, the hydrogel is pushed out to drive the third baffle to seal the bottom of the sealing ball, thereby reducing the acidic ring inside the purification block and making it in a suitable reaction environment for the activated sludge.

[0021] S4. During the reaction, the sludge inside the first liquid storage tank is pumped out through a slurry pump and enters the tangential feed inlet of the hydrocyclone. The waste slurry is sorted by the hydrocyclone for solid-liquid separation. The waste slurry with particles falls onto the top surface of the first vibrating screen through the guide block for dehydration screening. The separated slurry then enters the inside of the second liquid storage tank through the second connecting pipe and then returns to the inside of the first liquid storage tank through the liquid supply pipe for secondary purification to complete the internal cycle. When the water level inside the first liquid storage tank reaches a certain height, the buoyancy of the water will push out the fixed block and the sealing ball to block the positioning column.

[0022] S5. The excess liquid is discharged outward through the discharge pipe. After discharge, it can still be pumped into the first liquid storage tank through the external body for multiple cleanings to achieve external circulation, so as to improve the environmental protection treatment of the waste slurry.

[0023] The beneficial effects of the present invention are as follows:

[0024] 1. In the present invention, due to the self-characteristics of the concrete, its slurry will be alkaline, which will cause some sensitive bacteria in the activated sludge to be inhibited or even die, resulting in a decrease in the pollutant degradation efficiency. Since the inside of the first liquid storage tank is an alkaline environment, the hydrogel shrinks, causing the acidic substances inside the sealing ball to flow out, thereby neutralizing the alkaline environment inside the first liquid storage tank. Conversely, the hydrogel is pushed out to drive the third baffle to seal the bottom of the sealing ball, thereby reducing the acidic ring inside the purification block and making it in a suitable reaction environment for the activated sludge. By dynamically adjusting, it avoids the long-term exposure of microorganisms to an inhibitory pH environment, reduces the risk of sludge aging and disintegration, and maintains the system treatment capacity.

[0025] 2. The slurry filtered by the second vibrating screen in the present invention will fall into the inside of the first liquid storage tank and react and purify with the activated sludge inside the first liquid storage tank. At this time, the aeration pump is started to discharge air into the first liquid storage tank through the first aeration pipe to promote aerobic biological activities and improve the purification effect. And due to the bent setting of the first aeration pipe, during the operation of the aeration pump, it can also backwash the slurry sinking to the bottom of the first liquid storage tank to prevent the slurry from settling to the bottom and affecting the purification effect.

[0026] 3. The present invention pumps the sludge inside the first liquid storage bin through a slurry pump and feeds it into the tangential feed inlet of a hydrocyclone. The waste slurry is sorted by the hydrocyclone for solid-liquid separation. The waste slurry with particles falls onto the top surface of the first vibrating screen through a guide block for dehydration and screening. The separated slurry then enters the inside of the second liquid storage bin through a second connecting pipe, and then returns to the inside of the first liquid storage bin through a liquid supplement pipe for secondary purification, completing the internal circulation. The separated slurry returns to the first liquid storage bin through the liquid supplement pipe for secondary purification, realizing the circular treatment of the waste slurry, avoiding one-time discharge, reducing the consumption of chemicals and water resources. The recycled slurry is mixed with fresh waste slurry, which can maintain the stable concentration of active substances in the reaction system and improve the purification effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] The drawings forming a part of the specification depict the embodiments disclosed in the present application and, together with the specification, are used to explain the principles disclosed in the present application in a clear and understandable manner.

[0028] With reference to the drawings, the present disclosure can be more clearly understood from the following detailed description, wherein:

[0029] Figure 1 is a schematic diagram of the overall structure of the present invention;

[0030] Figure 2 is a schematic diagram of the overall side structure of the present invention;

[0031] Figure 3 is a cross-sectional view of the inside of the purification block of the present invention;

[0032] Figure 4 is a cross-sectional view of the inside of the second liquid storage bin of the present invention;

[0033] Figure 5 is a schematic diagram of the structure of the liquid supplement pipe of the present invention;

[0034] Figure 6 is a schematic diagram of the structure of the aeration assembly of the present invention;

[0035] Figure 7 is a schematic diagram of the structure of the acid control assembly of the present invention;

[0036] Figure 8 is a cross-sectional view of the inside of the fixing block of the present invention.

[0037] Wherein: 1. First bottom plate; 2. Purification block; 3. First baffle; 4. First vibrating screen; 5. Partition plate; 6. Second vibrating screen; 7. Sliding block; 8. Triangular support plate; 9. Vibration motor; 10. Feed pipe; 11. First liquid storage bin; 12. First connecting pipe; 13. Slurry pump; 14. Rubber hose; 15. Hydrocyclone; 16. Second connecting pipe; 17. Second liquid storage bin; 18. Discharge pipe; 19. Guide block; 20. Aeration pump; 21. First aeration pipe; 22. Second aeration pipe; 23. Liquid supplement pipe; 24. Positioning column; 25. Sealing ball; 26. Fixed block; 27. Second baffle; 28. Third baffle; 29. Limit sleeve; 30. Hydrogel; 32. Limit bottom plate; 34. Liquid inlet; 35. Acid inlet pipe; 36. Support column. Detailed implementation manners

[0038] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present application without creative efforts shall fall within the protection scope of the present application.

[0039] Please refer to Figure 1-8 , an environmental protection treatment device for concrete waste slurry provided by an embodiment of the present invention includes a first bottom plate 1, a purification block 2 is fixedly connected to one side of the top of the first bottom plate 1, and a vibration assembly is arranged inside the purification block 2;

[0040] A second liquid storage bin 17 is fixedly connected to one side of the top of the purification block 2, and a separation assembly is arranged on the top of the second liquid storage bin 17;

[0041] An aeration pump 20 is arranged on one side of the purification block 2, the aeration pump 20 is fixedly connected to the first bottom plate 1, and an aeration assembly is arranged on one side of the aeration pump 20;

[0042] A first liquid storage bin 11 is opened inside the purification block 2, and an acid control assembly is arranged on one side of the top inner surface of the first liquid storage bin 11. Through multiple components, the internal circulation and external circulation of the waste slurry are realized, and the waste slurry is purified multiple times to ensure the purification effect.

[0043] Among them, the vibration assembly includes a first baffle 3. The first baffle 3 is slidably connected to the purification block 2. One side of the first baffle 3 is fixedly connected to a first vibrating screen 4. One side of the first baffle 3 is provided with a partition plate 5. The partition plate 5 is slidably connected to the first bottom plate 1. One side of the partition plate 5 is fixedly connected to a second vibrating screen 6. Both sides of the first vibrating screen 4 and the second vibrating screen 6 are fixedly connected with multiple sliding blocks 7. The multiple sliding blocks 7 are all slidably connected to the inside of the purification block 2. The top of the first vibrating screen 4 is fixedly connected to a triangular support plate 8. One side of the triangular support plate 8 is fixedly connected with two vibrating motors 9. One side of the partition plate 5 is fixedly connected to a feed pipe 10. During the working process, an external pump body transports the concrete waste slurry to the top of the second vibrating screen 6 through the feed pipe 10, and starts the vibrating motors 9 to drive the first vibrating screen 4 and the second vibrating screen 6 to vibrate, thereby filtering the sand and gravel in the concrete and realizing the separation of water and stones.

[0044] Among them, the separation assembly includes a first connecting pipe 12. The first connecting pipe 12 is fixedly connected to one side of the purification block 2. One end of the first connecting pipe 12 is fixedly connected to a slurry pump 13. One side of the slurry pump 13 is fixedly connected to one end of a rubber hose 14. The other end of the rubber hose 14 is fixedly connected to a hydrocyclone 15. The rubber hose 14 is tangent to the hydrocyclone 15.

[0045] Among them, the separation assembly further includes a second connecting pipe 16. One end of the second connecting pipe 16 is fixedly connected to one end of the hydrocyclone 15. The other end of the second connecting pipe 16 is fixedly connected to the second liquid storage tank 17. The bottom of the second liquid storage tank 17 is fixedly connected to a discharge pipe 18. The other end of the hydrocyclone 15 is fixedly connected to a guide block 19. The guide block 19 is vertically arranged inside the purification block 2, so that the incoming waste slurry can better fall onto the surface of the first vibrating screen 4;

[0046] The sludge inside the first liquid storage tank 11 is pumped out by the slurry pump 13 and enters the tangential feed port of the hydrocyclone 15. The waste slurry is sorted by the hydrocyclone 15 for solid-liquid separation. The waste slurry with particles falls onto the top surface of the first vibrating screen 4 through the guide block 19 for dehydration and screening. The separated slurry then enters the inside of the second liquid storage tank 17 through the second connecting pipe 16, and then flows back to the inside of the first liquid storage tank 11 through the replenishing pipe 23 for secondary purification, completing the internal cycle. The separated slurry flows back to the first liquid storage tank 11 through the replenishing pipe 23 for secondary purification, realizing the cyclic treatment of the waste slurry, avoiding one-time discharge, reducing the consumption of chemicals and water resources. The recycled slurry is mixed with the fresh waste slurry, which can maintain the concentration stability of the active substances in the reaction system and improve the purification effect.

[0047] Among them, the aeration component includes a first aeration pipe 21, the first aeration pipe 21 is fixedly connected to the output end of the aeration pump 20, a second aeration pipe 22 is fixedly connected to one side of the first aeration pipe 21, the second aeration pipe 22 is communicated with the first aeration pipe 21, and the farthest end of the first aeration pipe 21 is bent;

[0048] When the aeration pump 20 is started, air is discharged into the first liquid storage bin 11 through the first aeration pipe 21 to promote aerobic biological activities and improve the purification effect. Moreover, due to the bent setting of the first aeration pipe 21, the aeration pump 20 can also backflush the slurry that has sunk to the bottom of the first liquid storage bin 11 during the working process, preventing the slurry from settling at the bottom and affecting the purification effect.

[0049] Among them, the acid control component includes a liquid supplement pipe 23, the liquid supplement pipe 23 is fixedly connected to one side of the bottom of the second liquid storage bin 17, a positioning column 24 is arranged in the middle of the liquid supplement pipe 23, the positioning column 24 is fixedly connected to the purification block 2, a sealing ball 25 is arranged at the bottom of the liquid supplement pipe 23, a fixing block 26 is movably sleeved outside the sealing ball 25, a second baffle 27 is fixedly connected to the outside of the fixing block 26, the acid control component includes a third baffle 28, the third baffle 28 is arranged at the bottom of the sealing ball 25, the arc of the third baffle 28 is equal to that of the sealing ball 25, the bottom of the third baffle 28 abuts against a limit sleeve 29, a plurality of liquid inlet openings 34 are arranged on the outside of the limit sleeve 29, a hydrogel 30 is arranged inside the limit sleeve 29, the hydrogel 30 is sleeved outside the positioning column 24, the acid control component includes a limit bottom plate 32, the limit bottom plate 32 is sleeved outside the positioning column 24, the limit bottom plate 32 is fixedly connected to the purification block 2, an acid inlet pipe 35 is fixedly connected to the bottom of the sealing ball 25, the acid inlet pipe 35 extends to the outside of the purification block 2, two groups of support columns 36 are fixedly connected to the bottom of the second liquid storage bin 17, and the support columns 36 are fixedly connected to the first bottom plate 1;

[0050] Due to the self - characteristics of concrete, its slurry will be alkaline. During the purification process, because of the alkaline characteristics of the waste slurry, some sensitive strains in the activated sludge will be inhibited or even die, resulting in a decrease in the pollutant degradation efficiency. At this time, since the inside of the first liquid storage bin 11 is an alkaline environment, the hydrogel 30 shrinks, causing the acidic substances inside the sealing ball 25 to flow out, thereby neutralizing the alkaline environment inside the first liquid storage bin 11. On the contrary, the hydrogel 30 ejects to drive the third baffle 28 to seal the bottom of the sealing ball 25, thereby reducing the acidic environment inside the purification block 2 and making it in a suitable reaction environment for the activated sludge. By dynamically adjusting, it can avoid the long - term exposure of microorganisms to an inhibitory pH environment, reduce the risk of sludge aging and disintegration, and maintain the system's treatment capacity.

[0051] Among them, the second aeration pipe 22 is inclined. After being inclined, the second aeration pipe 22 corresponds to the side surface of the second baffle plate 27. After the air outlet, it can drive the fixed block 26 to rotate so as to better diffuse the acid inside the first liquid storage bin 11. Due to the inclined setting of the second aeration pipe 22, the fixed block 26 can drive itself to rotate while the first liquid storage bin 11 is aerated, so as to throw out the acidic substances inside the sealing ball 25 through centrifugal force, making it better diffuse inside the first liquid storage bin 11.

[0052] The present invention also provides an environmental protection treatment method for concrete waste slurry, including the following steps:

[0053] S1. The external pump body transports the concrete waste slurry to the top of the second vibrating screen 6 through the feed pipe 10, and starts the vibrating motor 9 to drive the first vibrating screen 4 and the second vibrating screen 6 to vibrate, so as to filter the sand and gravel in the concrete and realize the separation of water and stone;

[0054] S2. The slurry filtered by the second vibrating screen 6 will fall into the first liquid storage bin 11 and react and purify with the activated sludge inside the first liquid storage bin 11. At this time, the aeration pump 20 is started to send air into the first liquid storage bin 11 through the first aeration pipe 21 to promote aerobic biological activities and improve the purification effect;

[0055] S3. During the purification process, due to the alkaline characteristics of the sludge, some sensitive strains in the activated sludge will be inhibited or even die, resulting in a decrease in the pollutant degradation efficiency. At this time, since the inside of the first liquid storage bin 11 is an alkaline environment, the hydrogel 30 shrinks, causing the acidic substances inside the sealing ball 25 to flow out, thereby neutralizing the alkaline environment inside the first liquid storage bin 11. On the contrary, the hydrogel 30 pops out to drive the third baffle plate 28 to seal the bottom of the sealing ball 25, thereby reducing the acidic ring inside the purification block 2 and making it in a suitable reaction environment for the activated sludge;

[0056] S4. During the reaction, the sludge inside the first liquid storage bin 11 is pumped out by the slurry pump 13 and enters the tangential feed port of the hydrocyclone 15. The waste slurry is sorted by the hydrocyclone 15 for solid-liquid separation. The waste slurry with particles falls onto the top surface of the first vibrating screen 4 through the guide block 19 for dehydration and screening, while the separated slurry enters the second liquid storage bin 17 through the second connecting pipe 16, and then flows back to the first liquid storage bin 11 through the replenishing pipe 23 for secondary purification to complete the internal cycle. When the water level inside the first liquid storage bin 11 reaches a certain height, the buoyancy of the water flow will push out the fixed block 26 and the sealing ball 25 to block the positioning column 24;

[0057] S5. The excess liquid is discharged outward through the discharge pipe 18. After being discharged, it can still be pumped into the first liquid storage bin 11 through the external body for multiple cleanings to achieve external circulation, so as to improve the environmental protection treatment of the waste slurry.

[0058] Working principle:

[0059] During the working process, the external pump body transports the concrete waste slurry to the top of the second vibrating screen 6 through the feed pipe 10. The vibration motor 9 is started to drive the first vibrating screen 4 and the second vibrating screen 6 to vibrate, so as to filter the sand and gravel in the concrete and realize the separation of water and stone. At this time, the slurry filtered by the second vibrating screen 6 will fall into the inside of the first liquid storage bin 11 and react and purify with the activated sludge inside the first liquid storage bin 11. At this time, the aeration pump 20 is started to discharge air into the first liquid storage bin 11 through the first aeration pipe 21 to promote aerobic biological activities and improve the purification effect. And due to the bent setting of the first aeration pipe 21, the aeration pump 20 can also backwash the slurry sinking to the bottom of the first liquid storage bin 11 during the working process, avoiding the slurry from settling to the bottom and affecting the purification effect. At the same time, it can drive the pushing fixed block 26 to rotate to make the acidic substances diffuse faster inside the first liquid storage bin 11 and improve the dynamic control effect;

[0060] During the reaction, the sludge inside the first liquid storage bin 11 is pumped out by the slurry pump 13 and enters the tangential feeding port of the hydrocyclone 15. The waste slurry is sorted by the hydrocyclone 15 to carry out solid-liquid separation. The waste slurry with particles falls onto the top surface of the first vibrating screen 4 through the guide block 19 for dehydration and screening. The separated slurry then enters the inside of the second liquid storage bin 17 through the second connecting pipe 16, and then flows back to the inside of the first liquid storage bin 11 through the liquid supplement pipe 23 for secondary purification to complete the internal circulation. The separated slurry flows back to the first liquid storage bin 11 through the liquid supplement pipe 23 for secondary purification to realize the circular treatment of the waste slurry, avoid one-time discharge, reduce the consumption of chemicals and water resources. The recycled slurry is mixed with the fresh waste slurry to maintain the stable concentration of the active substances in the reaction system and improve the purification effect;

[0061] At the same time, when purifying the concrete waste slurry, due to the self-characteristics of the concrete, its slurry will be alkaline. During the purification process, because of the alkaline characteristics of the waste slurry, some sensitive strains in the activated sludge will be inhibited or even die, resulting in a decrease in the pollutant degradation efficiency. At this time, due to the alkaline environment inside the first liquid storage bin 11, the hydrogel 30 shrinks, causing the acidic substances inside the sealing ball 25 to flow out, thereby neutralizing the alkaline environment inside the first liquid storage bin 11. On the contrary, the hydrogel 30 pops out to drive the third baffle 28 to seal the bottom of the sealing ball 25, thereby reducing the acidic ring inside the purification block 2 and making it in a suitable reaction environment for the activated sludge. By dynamically adjusting, it can avoid the microorganisms from being exposed to the inhibitory pH environment for a long time, reduce the risk of sludge aging and disintegration, and maintain the system treatment capacity;

[0062] The excess liquid is discharged outward through the discharge pipe 18. After being discharged, it can still be pumped into the first liquid storage bin 11 through the external body for multiple cleanings to realize the external circulation, so as to improve the environmental protection treatment of the waste slurry.

[0063] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention rather than to limit them. Although the present invention has been described in detail with reference to the preferred embodiments, those of ordinary skill in the art should understand that the technical solutions of the present invention can be modified or equivalently replaced without departing from the spirit and scope of the technical solutions of the present invention, and they should all be covered by the scope of the claims of the present invention.

Claims

1. An environmental protection treatment device for concrete waste slurry, including a first bottom plate (1), characterized in that, On one side of the top of the first bottom plate (1), a purification block (2) is fixedly connected, and a vibration assembly is arranged inside the purification block (2); On one side of the top of the purification block (2), a second liquid storage bin (17) is fixedly connected, and a separation assembly is arranged on the top of the second liquid storage bin (17); On one side of the purification block (2), an aeration pump (20) is arranged, the aeration pump (20) is fixedly connected to the first bottom plate (1), and an aeration assembly is arranged on one side of the aeration pump (20); Inside the purification block (2), a first liquid storage bin (11) is opened, and an acid control assembly is arranged on one side of the top inner surface of the first liquid storage bin (11).

2. The environmental protection treatment device for concrete waste slurry according to claim 1, characterized in that, The vibration assembly includes a first baffle (3), the first baffle (3) is slidably connected to the purification block (2), on one side of the first baffle (3), a first vibrating screen (4) is fixedly connected, on one side of the first baffle (3), a partition plate (5) is arranged, the partition plate (5) is slidably connected to the first bottom plate (1), on one side of the partition plate (5), a second vibrating screen (6) is fixedly connected, on both sides of the first vibrating screen (4) and the second vibrating screen (6), multiple sliding blocks (7) are fixedly connected, and multiple groups of the sliding blocks (7) are all slidably connected inside the purification block (2), on the top of the first vibrating screen (4), a triangular support plate (8) is fixedly connected, on one side of the triangular support plate (8), two vibration motors (9) are fixedly connected, and on one side of the partition plate (5), a feed pipe (10) is fixedly connected.

3. The environmental protection treatment device for concrete waste slurry according to claim 2, characterized in that, The separation assembly includes a first connecting pipe (12), the first connecting pipe (12) is fixedly connected to one side of the purification block (2), at one end of the first connecting pipe (12), a slurry pump (13) is fixedly connected, on one side of the slurry pump (13), one end of a rubber hose (14) is fixedly connected, and the other end of the rubber hose (14) is fixedly connected to a hydrocyclone (15), and the rubber hose (14) is tangent to the hydrocyclone (15).

4. The environmental protection treatment device for concrete waste slurry according to claim 3, characterized in that, The separation assembly further includes a second connecting pipe (16), one end of the second connecting pipe (16) is fixedly connected to one end of the hydrocyclone (15), the other end of the second connecting pipe (16) is fixedly connected to the second liquid storage bin (17), at the bottom of the second liquid storage bin (17), a discharge pipe (18) is fixedly connected, and at the other end of the hydrocyclone (15), a guide block (19) is fixedly connected, and the guide block (19) is vertically arranged inside the purification block (2) so that the incoming waste slurry can better fall onto the surface of the first vibrating screen (4).

5. The environmental protection treatment device for concrete waste slurry according to claim 4, characterized in that, The aeration assembly includes a first aeration pipe (21), the first aeration pipe (21) is fixedly connected to the output end of the aeration pump (20), on one side of the first aeration pipe (21), a second aeration pipe (22) is fixedly connected, the second aeration pipe (22) is communicated with the first aeration pipe (21), and the farthest end of the first aeration pipe (21) is bent.

6. The environmental protection treatment device for concrete waste slurry according to claim 5, characterized in that, The acid control component includes a liquid supply pipe (23), the liquid supply pipe (23) is fixedly connected to one side of the bottom of the second liquid storage bin (17), a positioning column (24) is arranged in the middle of the liquid supply pipe (23), the positioning column (24) is fixedly connected to the purification block (2), a sealing ball (25) is arranged at the bottom of the liquid supply pipe (23), a fixing block (26) is movably sleeved on the outer side of the sealing ball (25), and a second flow blocking plate (27) is fixedly connected to the outer side of the fixing block (26).

7. An environmental protection treatment device for concrete waste slurry according to claim 6, characterized in that, The acid control component includes a third flow blocking plate (28), the third flow blocking plate (28) is arranged at the bottom of the sealing ball (25), the arc of the third flow blocking plate (28) is equal to that of the sealing ball (25), the bottom of the third flow blocking plate (28) abuts against a limit sleeve (29), a plurality of liquid inlet openings (34) are formed in the outer side of the limit sleeve (29), a hydrogel (30) is arranged inside the limit sleeve (29), and the hydrogel (30) is sleeved on the outer side of the positioning column (24).

8. An environmental protection treatment device for concrete waste slurry according to claim 7, characterized in that, The acid control component includes a limit bottom plate (32), the limit bottom plate (32) is sleeved on the outer side of the positioning column (24), the limit bottom plate (32) is fixedly connected to the purification block (2), an acid inlet pipe (35) is fixedly connected to the bottom of the sealing ball (25), the acid inlet pipe (35) extends to the outside of the purification block (2), two groups of support columns (36) are fixedly connected to the bottom of the second liquid storage bin (17), and the support columns (36) are fixedly connected to the first bottom plate (1).

9. The environmental protection treatment device for concrete waste slurry according to claim 8, characterized in that, The second air supply pipe (22) is inclined, and after being inclined, the second air supply pipe (22) corresponds to the side surface of the second flow blocking plate (27), and after discharging air, it can drive the fixing block (26) to rotate so as to better disperse the acid inside the first liquid storage bin (11).

10. An environmental protection treatment method for concrete waste slurry according to any one of claims 1-9, characterized in that, Including the following steps: S1. The external pump body conveys the concrete waste slurry to the top of the second vibrating screen (6) through the feed pipe (10), and starts the vibrating motor (9) to drive the first vibrating screen (4) and the second vibrating screen (6) to vibrate, so as to filter the sand and gravel in the concrete and realize the separation of water and stones; S2. The slurry filtered by the second vibrating screen (6) will fall into the first liquid storage bin (11) and react and purify with the activated sludge inside the first liquid storage bin (11). At this time, the aeration pump (20) starts to discharge air into the first liquid storage bin (11) through the first air supply pipe (21) to promote aerobic biological activities and improve the purification effect; S3. During the purification process, due to the alkaline characteristics of the sludge, some sensitive strains in the activated sludge will be inhibited or even die, resulting in a decrease in the pollutant degradation efficiency. At this time, since the inside of the first liquid storage bin (11) is an alkaline environment, the hydrogel (30) shrinks, causing the acidic substances inside the sealing ball (25) to flow out, thereby neutralizing the alkaline environment inside the first liquid storage bin (11). On the contrary, the hydrogel (30) pops out and drives the third flow blocking plate (28) to seal the bottom of the sealing ball (25), thereby reducing the acidic ring inside the purification block (2) and making it in a suitable reaction environment for the activated sludge; S4. While the reaction is taking place, the sludge inside the first liquid storage bin (11) is pumped out through the slurry pump (13) and enters the tangential feed inlet of the hydrocyclone (15). The waste slurry is sorted by the hydrocyclone (15) for solid-liquid separation. The waste slurry with particles falls onto the top surface of the first vibrating screen (4) through the guide block (19) for dehydration and screening. The separated slurry enters the inside of the second liquid storage bin (17) through the second connecting pipe (16), and then returns to the inside of the first liquid storage bin (11) through the liquid supplement pipe (23) for secondary purification to complete the internal circulation. When the water level inside the first liquid storage bin (11) reaches a certain height, the buoyancy of the water will push out the fixed block (26) and the sealing ball (25) to block the positioning column (24); S5. The excess liquid is discharged outward through the discharge pipe (18). After being discharged, it can still be pumped into the inside of the first liquid storage bin (11) through the external body for multiple cleanings to achieve external circulation, so as to improve the environmental protection treatment of the waste slurry.

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