Laboratory wastewater treatment all-in-one machine

Abstract

The invention discloses a laboratory wastewater treatment all-in-one machine, and particularly relates to the field of wastewater treatment.The laboratory wastewater treatment all-in-one machine comprises a machine body, a wastewater collecting box is arranged on one side of the machine body, a collecting barrel is arranged in the wastewater collecting box, a water collecting pool is arranged at the top of the wastewater collecting box, and the drainage end of the water collecting pool is matched with the collecting barrel; a flow guide pipe is arranged on one side of the bottom of the collecting barrel, a water pump is arranged in the middle of the flow guide pipe, a filtering and neutralizing tank is arranged at the top of an inner cavity of the machine body, a filtering plate is connected to the inner wall of the upper portion of the filtering and neutralizing tank, and a stirring shaft is connected to the inner wall of the middle of the filtering and neutralizing tank through a bearing; stirring rods are arranged and connected on the surface of the stirring shaft at equal intervals; the wastewater collection tank, the filtration and neutralization tank, the sedimentation tank, the air floatation tank, the centrifugal machine, the oxidation and sterilization tank and the sand filtering tank are integrated into the integrated equipment through the machine body, the size is small, and the occupied space is small, so that the integrated equipment can be contained in a laboratory for wastewater treatment.

Description

Technical Field

[0001] The present application relates to the field of wastewater treatment, and in particular to an all-in-one laboratory wastewater treatment machine. Background Art

[0002] Laboratory wastewater is usually complex in composition and may contain organic matter, heavy metals, acids and alkalis, microorganisms, radioactive substances, etc. The types are numerous and the concentrations may be high. It may also be toxic, corrosive or infectious. Treating this type of wastewater requires comprehensive consideration of different pollutant types and selecting the appropriate treatment process. However, conventional wastewater treatment equipment is large in size and cannot meet the requirements of laboratory sites. Therefore, a smaller integrated water treatment unit is needed to meet site requirements and solve the problem of wastewater discharge. Existing laboratory wastewater treatment equipment often requires frequent filter replacement during the filtration and neutralization process to ensure the flow of wastewater, or requires independent filter cleaning mechanisms such as high-pressure backwash pumps and ultrasonic vibrators to clean the filters. This increases operation and maintenance costs, and the separate cleaning components can easily make the wastewater treatment equipment too large. Therefore, in response to the above problems, an all-in-one laboratory wastewater treatment machine is proposed. Summary of the Invention

[0003] The purpose of this application is to provide an all-in-one laboratory wastewater treatment machine.

[0004] In the first aspect, the present application provides an integrated laboratory wastewater treatment machine that adopts the following technical solutions: A laboratory wastewater treatment integrated machine includes a body, a wastewater collection box is provided on one side of the body, a collection bucket is provided inside the wastewater collection box, a water collection pool is provided on the top of the wastewater collection box, the drainage end of the water collection pool matches the collection bucket, a guide pipe is provided on the bottom side of the collection bucket, and a water pump is provided in the middle of the guide pipe, a filtration and neutralization pool is provided on the top of the inner cavity of the body, the upper inner wall of the filtration and neutralization pool is connected with a filter plate, the middle inner wall of the filtration and neutralization pool is connected with a stirring shaft through a bearing, the surface of the stirring shaft is equidistantly connected with stirring rods, one side of the outer wall of the filtration and neutralization pool is arranged with a dosing box, one side of the dosing box is provided with a drug outlet, one side of the outer wall of the filtration and neutralization pool is fixedly connected to a servo motor, and the output end of the servo motor and the stirring shaft are connected through a coupling.

[0005] By adopting the above technical solution, the machine body plays a supporting role, and the wastewater collection box, filtration and neutralization tank, sedimentation tank, flotation tank, centrifuge, oxidation and sterilization tank and filter sand tank are integrated into an integrated device through the machine body. The device is small in size and occupies a small space, so it can be accommodated in the laboratory for wastewater treatment. The laboratory wastewater can be diverted to the collection bucket through the collection tank. The wastewater is first collected in the collection tank for temporary storage, and gravity is used to complete the initial sedimentation, separate large particles of suspended matter and scum, and avoid directly entering the collection system and causing blockage. It is then lifted to the filtration and neutralization tank by a water pump for filtration and neutralization. First, physical filtration is performed through the filter plate to remove large particles of impurities. Acidic and alkaline agents are respectively provided in multiple groups of dosing boxes. The pH value is detected by a pH detection probe. Different agents are added according to different pH values to neutralize the pH value of the waste liquid. At the same time, the stirring shaft is driven by a servo motor to rotate, thereby driving the stirring rod to stir the filtered wastewater inside the filtration and neutralization tank, thereby improving the neutralization efficiency.

[0006] A driving cavity is provided on the inner wall of one side of the filtering and neutralizing tank, and a reciprocating screw is connected to the bottom inner wall of the filtering and neutralizing tank through a bearing. One end of the reciprocating screw and the stirring shaft extend into the driving cavity, and the reciprocating screw and the stirring shaft are connected to the inner wall of the driving cavity through a bearing.

[0007] By adopting the above technical solution, the rotation of the stirring shaft can drive the No. 1 gear to rotate synchronously, the rotation of the No. 1 gear drives the transmission belt to rotate and thus drives the No. 2 gear to rotate, and the rotation of the No. 2 gear drives the reciprocating screw to rotate synchronously. Since the diameter of the No. 1 gear is smaller than that of the No. 2 gear, a reduction transmission is formed, which converts the high-speed rotation of the stirring shaft into the low-speed rotation of the reciprocating screw.

[0008] The outer wall of one side of the stirring shaft located inside the driving chamber is fixedly connected to the No. 1 gear, and the outer wall of one side of the reciprocating screw is fixedly connected to the No. 2 gear. The No. 1 gear and the No. 2 gear are connected by a transmission toothed belt, and the diameter of the No. 1 gear is smaller than that of the No. 2 gear. A moving frame is provided on the middle inner wall of the filter neutralization tank, and a threaded moving block is fixedly connected to the middle inner wall of the moving frame, and the threaded moving block is threadedly connected to the reciprocating screw.

[0009] By adopting the above technical solution, the rotational motion of the reciprocating screw is converted into the linear motion of the moving frame through the threaded moving block, thereby driving the moving frame to perform reciprocating translational motion in the filtration center and the pool. The movement direction of the moving frame and the rotation direction of the stirring rod form a countercurrent effect, thereby enhancing the fluid disturbance in the pool and preventing sedimentation dead corners.

[0010] The outer wall of the movable frame is fixedly connected with a scraper bar, and the outer wall of the scraper bar abuts against the inner wall of the filter neutralization tank. The top of the movable frame is provided with a diversion pipe, and the top of the diversion pipe is arranged and connected with a nozzle, and the nozzle corresponds to the filter plate.

[0011] By adopting the above technical solution, the moving frame drives the scraper to move synchronously while moving back and forth, thereby scraping the inner wall of the filter neutralization tank and the sediment attached to the tank wall and the bottom of the filter plate, thereby improving the internal cleanliness. At the same time, the moving frame can drive the diversion pipe and the nozzle to move synchronously while moving, so that the nozzle moves along the surface of the filter plate to backwash the filter plate and avoid clogging of the filter plate. Through mechanical linkage integration and dynamic self-cleaning, the reliability, energy efficiency and processing capacity of the filter neutralization tank are significantly improved, which is especially suitable for scenarios with complex laboratory wastewater composition and intermittent high-load operation.

[0012] A circulation pipe is connected to the outer wall of one side of the filtering and neutralization tank. A diversion cavity is provided in the middle of the circulation pipe. The top of the circulation pipe is connected to a return hose. The end of the return hose away from the circulation pipe is connected to the diversion pipe.

[0013] By adopting the above technical solution, the water in the filter neutralization tank can be connected to the return hose and the diversion pipe through the circulation pipe, and the water in the circulation pipe is pumped into the diversion pipe through the spiral impeller in the guide chamber, and then sprayed toward the bottom of the filter plate through the nozzle, thereby achieving a backwash effect on the filter plate, thereby avoiding blockage of the filter plate and causing wastewater overflow.

[0014] One end of the stirring shaft extends away from the servo motor to the outside of the filter neutralization tank, and the outer wall of the end of the stirring shaft is fixedly connected to the No. 3 gear. One side outer wall of the filter neutralization tank is connected to the drive shaft through a bearing. One side outer wall of the drive shaft is fixedly connected to the No. 4 gear. The No. 3 gear is meshed with the No. 4 gear, and the diameter of the No. 3 gear is larger than that of the No. 4 gear. One end of the drive shaft extends into the diversion cavity and is connected to the No. 1 bevel gear, and the drive shaft is movably connected to the inner wall of the diversion cavity through a sealed bearing.

[0015] By adopting the above technical solution, the stirring shaft is driven to rotate by a servo motor, and the No. 3 gear whose end extends to the outside of the filter neutralization tank rotates synchronously with the stirring shaft. At the same time, since the No. 3 gear is engaged with the No. 4 gear on the drive shaft, the No. 4 gear and the drive shaft are driven to rotate. At the same time, the diameter of the No. 3 gear is larger than that of the No. 4 gear, thereby forming an acceleration effect, converting the rotation of the stirring shaft into high-speed rotation of the drive shaft.

[0016] An auxiliary frame is fixedly connected to the outer wall of one side of the guide chamber, and an impeller shaft is fixedly connected to the outer wall of one side of the auxiliary frame through a bearing, and spiral impellers are equidistantly connected to the outer wall of the impeller shaft, and a No. 2 bevel gear is fixedly connected to the bottom end of the impeller shaft, and the No. 2 bevel gear is meshed with the No. 1 bevel gear, and the diameter of the No. 2 bevel gear is smaller than that of the No. 1 bevel gear.

[0017] By adopting the above technical solution, the rotation of the drive shaft drives the No. 1 bevel gear to rotate synchronously, and the rotation of the No. 1 bevel gear drives the No. 2 bevel gear meshing with it to rotate. At the same time, since the diameter of the No. 1 bevel gear is larger than that of the No. 2 bevel gear, the No. 2 bevel gear is further accelerated. The rotation of the No. 2 bevel gear drives the impeller shaft to rotate at high speed, thereby driving the spiral impeller to move synchronously. Through the rotation of multiple sets of spiral impellers, centrifugal force can be generated in the diversion chamber, and the filtered wastewater is sucked in from the bottom of the diversion chamber and pressurized and pushed to the top of the circulation pipe to be diverted to the return hose and the diversion pipe. At the same time, the diameter of the return hose is smaller than that of the circulation pipe, thereby accelerating the water flow entering the return hose, and then spraying it toward the bottom of the filter plate through the nozzle, thereby achieving a backwashing effect on the filter plate, avoiding clogging of the filter plate and overflow of wastewater. At the same time, the moving frame of the nozzle drives the diversion pipe to move back and forth when spraying, thereby backwashing all positions of the filter plate, thereby improving the efficiency of wastewater treatment.

[0018] A pH detection probe is provided on the inner wall of one side of the filtration and neutralization tank, and solenoid valves are provided at the ends of multiple groups of the medicine outlets. One side of the bottom of the filtration and neutralization tank is connected to a drain pipe No. 1, and a No. 1 electric valve is provided in the middle of the drain pipe No. 1. A sedimentation tank is provided at the bottom of the filtration and neutralization tank, and the sedimentation tank is connected to the drain pipe No. 1.

[0019] By adopting the above technical solution, the pH detection probe can monitor the pH value of the wastewater in the filtration and neutralization tank in real time and feed it back to the control system. If the pH value exceeds the standard, the solenoid valve automatically opens the corresponding drug outlet and accurately adds the neutralizing agent. The servo motor drives the stirring shaft to start synchronously to ensure rapid diffusion of the agent and achieve dynamic neutralization. The neutralized wastewater enters the sedimentation tank through the No. 1 discharge pipe to complete gravity sedimentation. For example, metal hydroxides and suspended particles settle to the bottom of the tank, and the surface clarified liquid flows into the flotation tank through the No. 2 discharge pipe.

[0020] The bottom end of the sedimentation tank is connected to the flotation tank through the No. 2 drainage pipe, the water outlet of the flotation tank is connected to the centrifuge through the No. 3 drainage pipe, the drainage end of the centrifuge is connected to the oxidation sterilization tank through the No. 4 drainage pipe, the bottom end of the body is connected to the filter sand tank, the drainage end of the oxidation sterilization tank is connected to the filter sand tank through the No. 5 drainage pipe, the water inlets of multiple groups of the filter sand tanks are connected in parallel, and the water outlets of the filter sand tanks are connected in parallel with drainage pipes, and the drainage pipes extend to the outside of the body and are connected to joints.

[0021] By adopting the above technical solution, the flotation tank generates microbubbles through the dissolved air system, and the adhered suspended matter floats up to form a scum layer. After being removed by the scraper, the purified water enters the centrifuge through the No. 3 discharge pipe. The centrifugal separation is enhanced by the centrifuge, and the centrifugal force generated by the high-speed rotation further separates the micron-sized particles. The sludge is discharged from the bottom, and the clear liquid enters the oxidation and sterilization tank through the No. 4 discharge pipe. The oxidation and sterilization tank adds ozone and ultraviolet rays to kill pathogenic microorganisms. The water after the organic matter is degraded is transported in parallel to multiple groups of filter sand tanks through the No. 5 discharge pipe.

[0022] The interior of the sand filter tank is sequentially provided with a modified PP fiber ball layer, a quartz sand layer and a magnetite layer from top to bottom; a No. 1 activated carbon filter layer is provided between the modified PP fiber ball layer and the quartz sand layer; a No. 2 activated carbon filter layer is provided between the activated carbon quartz sand layer and the magnetite layer; the outer walls of the No. 1 activated carbon filter layer and the No. 2 activated carbon filter layer are covered with a stainless steel orifice plate; and a magnetic ion exchange resin is mixed inside the magnetite layer.

[0023] By adopting the above technical solution, the parallel water inlet of multiple groups of filter sand tanks can achieve balanced flow distribution to avoid overload of a single tank. The modified PP fiber ball layer removes suspended matter and colloids through the physical interception effect of the fiber balls. The No. 1 activated carbon filter layer absorbs organic matter through the activated carbon plate coated with stainless steel perforated plate. The quartz sand layer synergistically removes soluble pollutants. The No. 2 activated carbon filter layer achieves secondary adsorption to ensure that the organic matter in the effluent meets the standard. The magnetic ion exchange resin inside the magnetite layer selectively absorbs heavy metal ions. The magnetite particles enhance the filtration accuracy. The effluent from all filter sand tanks is collected through parallel drainage pipes and connected to the drainage system through a joint to achieve standard discharge. In summary, this application includes at least one of the following beneficial technical effects: 1. Compared with the existing technology, this laboratory wastewater treatment all-in-one machine integrates the wastewater collection box, filtration and neutralization tank, sedimentation tank, flotation tank, centrifuge, oxidation and sterilization tank and sand filter tank into one device through the machine body. It is small in size and occupies little space, so it can be accommodated in the laboratory for wastewater treatment.

[0024] 2. Compared with the existing technology, this laboratory wastewater treatment integrated machine converts the high-speed rotation of the stirring shaft into the low-speed rotation of the reciprocating screw, and the rotational motion of the reciprocating screw is converted into the linear motion of the moving frame through the threaded moving block, thereby driving the moving frame to perform reciprocating translational motion in the filter neutralization tank. The movement direction of the moving frame and the rotation direction of the stirring rod form a countercurrent effect, which enhances the fluid disturbance in the tank and prevents sedimentation dead corners. While the moving frame performs reciprocating translational motion, it drives the scraper to perform synchronous movement, thereby scraping the inner wall of the filter neutralization tank, scraping off the sediment attached to the tank wall and the bottom of the filter plate, and improving the internal cleanliness.

[0025] 3. Compared with the existing technology, this laboratory wastewater treatment integrated machine can drive the diversion pipe and the nozzle to move synchronously while the moving frame moves, so that the nozzle moves along the surface of the filter plate to backwash the filter plate, avoiding clogging of the filter plate. Through mechanical linkage integration and dynamic self-cleaning, the reliability, energy efficiency and treatment capacity of the filtration neutralization tank are significantly improved, which is especially suitable for scenarios with complex laboratory wastewater composition and intermittent high-load operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 This is a schematic diagram of the overall structure of this application; Figure 2 For this application, see the structural diagram; Figure 3 This is a schematic diagram of the internal structure of the filtration and neutralization tank of this application; Figure 4 This is a schematic diagram of the internal connection structure of the diversion cavity of this application; Figure 5 This is a schematic diagram of the connection structure between the third gear and the fourth gear of this application; Figure 6 This is a schematic diagram of the connection structure between the moving frame and the scraper strip of this application; Figure 7 This is a schematic diagram of the internal structure of the sand filter tank of this application; Figure 8 This is a schematic diagram of the internal connection structure of the drive cavity of this application; Explanation of reference numerals: 1. body; 2. wastewater collection box; 201. collection barrel; 202. water collection tank; 203. diversion pipe; 204. water pump; 3. filtration and neutralization tank; 4. filter plate; 5. stirring shaft; 6. stirring rod; 601. dosing box; 602. drug outlet; 603. solenoid valve; 7. servo motor; 8. drive chamber; 9. reciprocating screw; 10. No. 1 gear; 101. No. 2 gear; 11. transmission toothed belt; 12. moving frame; 121. threaded moving block; 13. scraper; 14. diverter pipe; 15. circulation pipe; 16. diversion chamber; 17. return hose; 18. nozzle; 19. No. 3 gear; 20. drive shaft; 21 , gear No. 4; 22. bevel gear No. 1; 23. auxiliary frame; 24. impeller shaft; 25. spiral impeller; 26. bevel gear No. 2; 27. pH detection probe; 28. drain pipe No. 1; 29. electric valve No. 1; 30. sedimentation tank; 301. drain pipe No. 2; 32. flotation tank; 321. drain pipe No. 3; 33. centrifuge; 331. drain pipe No. 4; 34. oxidation and sterilization tank; 341. drain pipe No. 5; 35. filter sand tank; 36. drain pipe; 37. joint; 38. PP fiber ball layer; 39. quartz sand layer; 40. magnetite layer; 41. activated carbon filter layer No. 1; 42. activated carbon filter layer No. 2; 43. stainless steel orifice plate. DETAILED DESCRIPTION

[0027] The following is combined with Figure 1 - Attachment Figure 8 , further details of this application are given.

[0028] Embodiment: A laboratory wastewater treatment all-in-one machine includes a machine body 1, a wastewater collection box 2 is provided on one side of the machine body 1, a collection bucket 201 is provided inside the wastewater collection box 2, a water collection pool 202 is provided on the top of the wastewater collection box 2, the drainage end of the water collection pool 202 matches the collection bucket 201, a guide pipe 203 is provided on one side of the bottom of the collection bucket 201, and a water pump 204 is provided in the middle of the guide pipe 203, a filter and neutralization pool 3 is provided on the top of the inner cavity of the machine body 1, and the upper end of the filter and neutralization pool 3 is provided. The inner wall of the square is connected to a filter plate 4, the middle inner wall of the filter neutralization tank 3 is connected to a stirring shaft 5 through a bearing, and stirring rods 6 are arranged equidistantly on the surface of the stirring shaft 5. A dosing box 601 is arranged on the outer wall of one side of the filter neutralization tank 3, and a drug outlet 602 is provided on one side of the dosing box 601. A servo motor 7 is fixedly connected to the outer wall of one side of the filter neutralization tank 3. The output end of the servo motor 7 is connected to the stirring shaft 5 through a coupling. The body 1 plays a supporting role, and the wastewater collection box 2, The filtration and neutralization tank 3, the sedimentation tank 30, the flotation tank 32, the centrifuge 33, the oxidation and sterilization tank 34 and the filter sand tank 35 are integrated into an integrated device with a small size and a small footprint, so that it can be accommodated in a laboratory for wastewater treatment. The laboratory wastewater can be diverted to the collection tank 201 through the collection tank 202. The wastewater is first collected in the collection tank 202 for temporary storage, and gravity is used to complete the initial sedimentation, separating large particles of suspended matter and scum to avoid directly entering the collection system and causing blockage. The wastewater is then pumped to the filtration and neutralization tank 3 by the water pump 204 for filtration and neutralization. First, physical filtration is performed on the filter plate 4 to remove large particles of impurities. The multiple groups of dosing boxes 601 are respectively provided with acidic and alkaline agents. The pH value is detected by the pH detection probe 27. Different agents are added according to different pH values to neutralize the pH value of the waste liquid. At the same time, the servo motor 7 drives the stirring shaft 5 to rotate, thereby driving the stirring rod 6 to stir the filtered wastewater in the filtration and neutralization tank 3, thereby improving the neutralization efficiency.

[0029] A driving chamber 8 is provided on the inner wall of one side of the filtering and neutralizing tank 3. A reciprocating screw 9 is connected to the inner wall of the bottom of the filtering and neutralizing tank 3 through a bearing. One end of the reciprocating screw 9 and the stirring shaft 5 extend into the driving chamber 8, and the reciprocating screw 9 and the stirring shaft 5 are connected to the inner wall of the driving chamber 8 through a bearing. The outer wall of one side of the stirring shaft 5 inside the driving chamber 8 is fixedly connected to a No. 1 gear 10. The outer wall of one side of the reciprocating screw 9 is fixedly connected to a No. 2 gear 101. The No. 1 gear 10 and the No. 2 gear 101 are connected by a transmission toothed belt 11, and the diameter of the No. 1 gear 10 is smaller than that of the No. 2 gear 101. A moving frame 12 is provided on the middle inner wall of the filtering and neutralizing tank 3. A threaded moving block 121 is fixedly connected to the middle inner wall of the moving frame 12. The threaded moving block 121 It is threadedly connected to the reciprocating screw 9, wherein the rotation of the stirring shaft 5 can drive the No. 1 gear 10 to rotate synchronously, the rotation of the No. 1 gear 10 drives the transmission belt 11 to rotate, thereby driving the No. 2 gear 101 to rotate, and the rotation of the No. 2 gear 101 drives the reciprocating screw 9 to rotate synchronously. Since the diameter of the No. 1 gear 10 is smaller than that of the No. 2 gear 101, a reduction transmission is formed, which converts the high-speed rotation of the stirring shaft 5 into the low-speed rotation of the reciprocating screw 9. The rotational motion of the reciprocating screw 9 is converted into the linear motion of the moving frame 12 through the threaded moving block 121, thereby driving the moving frame 12 to perform reciprocating translational motion in the filtration and neutralization tank 3. The movement direction of the moving frame 12 and the rotation direction of the stirring rod 6 form a countercurrent effect, thereby enhancing the fluid disturbance in the tank and preventing sedimentation dead corners.

[0030] The outer wall of the movable frame 12 is fixedly connected to a scraper bar 13, and the outer wall of the scraper bar 13 abuts against the inner wall of the filter neutralization tank 3. A diverter pipe 14 is provided on the top of the movable frame 12, and a nozzle 18 is arranged on the top of the diverter pipe 14, and the nozzle 18 corresponds to the filter plate 4. The movable frame 12 drives the scraper bar 13 to move synchronously while reciprocating translationally, thereby scraping the inner wall of the filter neutralization tank 3 and the sediment attached to the pool wall and the bottom surface of the filter plate 4 to improve the internal cleanliness. At the same time, the movable frame 12 can drive the diverter pipe 14 and the nozzle 18 to move synchronously while moving, so that the nozzle 18 moves along the surface of the filter plate 4 to backwash the filter plate 4 and avoid clogging of the filter plate 4. Through mechanical linkage integration and dynamic self-cleaning, the reliability, energy efficiency and treatment capacity of the filter neutralization tank 3 are significantly improved, which is particularly suitable for scenarios with complex laboratory wastewater composition and intermittent high-load operation.

[0031] A circulation pipe 15 is connected to the outer wall of one side of the filtration and neutralization tank 3, and a diversion chamber 16 is provided in the middle of the circulation pipe 15. The top of the circulation pipe 15 is connected to a return hose 17, and the end of the return hose 17 away from the circulation pipe 15 is connected to the diversion pipe 14. The circulation pipe 15 can connect the water in the filtration and neutralization tank 3 with the return hose 17 and the diversion pipe 14, and the spiral impeller 25 in the diversion chamber 16 draws the water in the circulation pipe 15 into the diversion pipe 14, and then sprays it toward the bottom of the filter plate 4 through the nozzle 18, thereby achieving a backwash effect on the filter plate 4, thereby avoiding clogging of the filter plate 4 and causing wastewater overflow.

[0032] One end of the stirring shaft 5 away from the servo motor 7 extends to the outside of the filter and neutralization tank 3, and the outer wall of the end of the stirring shaft 5 is fixedly connected to the third gear 19, and the outer wall of one side of the filter and neutralization tank 3 is connected to the driving shaft 20 through a bearing. The outer wall of one side of the driving shaft 20 is fixedly connected to the fourth gear 21. The third gear 19 is meshed with the fourth gear 21, and the diameter of the third gear 19 is larger than that of the fourth gear 21. One end of the driving shaft 20 extends into the guide cavity 16 and is connected to the first bevel gear 22, and the driving shaft 20 is connected to the fourth gear 21. The inner wall of the diversion chamber 16 is movably connected through a sealed bearing, wherein the stirring shaft 5 is driven to rotate by the servo motor 7, and the third gear 19 whose end extends to the outside of the filter neutralization tank 3 rotates synchronously with the stirring shaft 5. At the same time, since the third gear 19 is engaged with the fourth gear 21 on the drive shaft 20, the fourth gear 21 and the drive shaft 20 are driven to rotate. At the same time, the diameter of the third gear 19 is larger than that of the fourth gear 21, thereby forming an acceleration effect, converting the rotation of the stirring shaft 5 into high-speed rotation of the drive shaft 20.

[0033] An auxiliary frame 23 is fixedly connected to the outer wall of one side of the guide chamber 16. An impeller shaft 24 is fixedly connected to the outer wall of one side of the auxiliary frame 23 through a bearing. Spiral impellers 25 are equidistantly connected to the outer wall of the impeller shaft 24. The bottom end of the impeller shaft 24 is fixedly connected to a second bevel gear 26. The second bevel gear 26 is meshed with the first bevel gear 22, and the diameter of the second bevel gear 26 is smaller than the first bevel gear 22. The rotation of the drive shaft 20 drives the first bevel gear 22 to rotate synchronously. The rotation of the first bevel gear 22 drives the second bevel gear 26 meshed with it to rotate. At the same time, since the diameter of the first bevel gear 22 is larger than the second bevel gear 26, the second bevel gear 26 is further accelerated. The rotation of the second bevel gear 26 drives the impeller shaft 24 It rotates at high speed, thereby driving the spiral impeller 25 to move synchronously. The rotation of multiple sets of spiral impellers 25 can generate centrifugal force in the diversion chamber 16, and the filtered wastewater is sucked from the bottom of the diversion chamber 16 and pushed to the top of the circulation pipe 15 with pressure, thereby diverting it to the return hose 17 and the diversion pipe 14. At the same time, the diameter of the return hose 17 is smaller than that of the circulation pipe 15, thereby accelerating the water flow entering the return hose 17, and then spraying it toward the bottom of the filter plate 4 through the nozzle 18, thereby achieving a backwashing effect on the filter plate 4, avoiding clogging of the filter plate 4 and causing wastewater overflow. At the same time, when the nozzle 18 is sprayed, the moving frame 12 drives the diversion pipe 14 to move back and forth, thereby backwashing each position of the filter plate 4, thereby improving the efficiency of wastewater treatment.

[0034] A pH detection probe 27 is provided on the inner wall of one side of the filter neutralization tank 3, and a solenoid valve 603 is provided at the end of multiple groups of drug outlets 602. One side of the bottom of the filter neutralization tank 3 is connected to the No. 1 drainage pipe 28, and a No. 1 electric valve 29 is provided in the middle of the No. 1 drainage pipe 28. A sedimentation tank 30 is provided at the bottom of the filter neutralization tank 3, and the sedimentation tank 30 is connected to the No. 1 drainage pipe 28. Among them, the pH detection probe 27 can monitor the pH value of the wastewater in the filter neutralization tank 3 in real time and feedback it to the control system. If the pH value exceeds the standard, the solenoid valve 603 automatically opens the corresponding drug outlet 602 to accurately add the neutralizing agent. The servo motor 7 drives the stirring shaft 5 to start synchronously to ensure rapid diffusion of the agent and achieve dynamic neutralization. The neutralized wastewater enters the sedimentation tank 30 through the No. 1 drainage pipe 28 to complete gravity sedimentation. For example, metal hydroxides and suspended particles settle to the bottom of the tank, and the surface clarified liquid flows into the flotation tank 32 through the No. 2 drainage pipe 301.

[0035] The bottom end of the sedimentation tank 30 is connected to the flotation tank 32 through the No. 2 drainage pipe 301, the water outlet of the flotation tank 32 is connected to the centrifuge 33 through the No. 3 drainage pipe 321, the drainage end of the centrifuge 33 is connected to the oxidation sterilization tank 34 through the No. 4 drainage pipe 331, the bottom end of the body 1 is connected to the sand filter tank 35, the drainage end of the oxidation sterilization tank 34 is connected to the sand filter tank 35 through the No. 5 drainage pipe 341, the water inlets of the multiple groups of sand filter tanks 35 are connected in parallel, and the water outlets of the sand filter tanks 35 are connected in parallel with the drainage pipe 36, which extends to the outside of the body 1 and is connected to Connector 37, wherein the flotation tank 32 generates microbubbles through the dissolved air system, and the adhered suspended matter floats to form a scum layer. After being removed by the scraper, the purified water enters the centrifuge 33 through the No. 3 discharge pipe 321. The centrifugal separation is enhanced by the centrifuge 33. The centrifugal force generated by the high-speed rotation further separates the micron-sized particles, and the sludge is discharged from the bottom. The clear liquid enters the oxidation and sterilization tank 34 through the No. 4 discharge pipe 331. The oxidation and sterilization tank 34 adds ozone and ultraviolet radiation to kill pathogenic microorganisms. The water after the organic matter is degraded is transported in parallel to multiple groups of filter sand tanks 35 through the No. 5 discharge pipe 341.

[0036] The interior of the filter sand tank 35 is sequentially provided with a modified PP fiber ball layer 38, a quartz sand layer 39 and a magnetite layer 40 from top to bottom. A No. 1 activated carbon filter layer 41 is provided between the modified PP fiber ball layer 38 and the quartz sand layer 39. A No. 2 activated carbon filter layer 42 is provided between the activated carbon quartz sand layer 39 and the magnetite layer 40. The outer walls of the No. 1 activated carbon filter layer 41 and the No. 2 activated carbon filter layer 42 are covered with a stainless steel orifice plate 43. The magnetite layer 40 is mixed with a magnetic ion exchange resin. The parallel water inlet of multiple groups of filter sand tanks 35 realizes balanced flow distribution to avoid overfilling of a single tank. The modified PP fiber ball layer 38 removes suspended matter and colloids through the physical interception effect of the fiber balls. The No. 1 activated carbon filter layer 41 absorbs organic matter through the activated carbon plate coated with the stainless steel perforated plate 43. The quartz sand layer 39 synergistically removes soluble pollutants. The No. 2 activated carbon filter layer 42 achieves secondary adsorption to ensure that the organic matter in the effluent meets the standards. The magnetic ion exchange resin inside the magnetite layer 40 selectively adsorbs heavy metal ions, and the magnetite particles enhance the filtration accuracy. The effluent from all the filter sand tanks 35 is collected through the parallel drainage pipes 36 and connected to the drainage system through the connector 37 to achieve standard discharge.

[0037] The implementation principle of the embodiment of the present application is as follows: first, the laboratory wastewater is directed to the collection barrel 201 through the water collection tank 202, and the wastewater is first collected in the water collection tank 202 for temporary storage, and the initial sedimentation is completed by gravity to separate large particles of suspended matter and scum, and then it is lifted to the filtration and neutralization tank 3 by the water pump 204 for filtration and neutralization. First, it is physically filtered through the filter plate 4 to remove large particles of impurities. Acidic and alkaline agents are respectively provided in multiple groups of dosing boxes 601, and the pH value is detected by the pH detection probe 27. Different agents are added according to different pH values to neutralize the pH value of the waste liquid. At the same time, the servo motor 7 drives the stirring shaft 5 to rotate, thereby driving the stirring rod 6 to stir the filtered wastewater in the filtration and neutralization tank 3, thereby improving the neutralization efficiency. The rotation of the stirring shaft 5 can drive the No. 1 gear 10 to rotate synchronously. The rotation of the wheel 10 drives the transmission belt 11 to rotate, thereby driving the No. 2 gear 101 to rotate. The rotation of the No. 2 gear 101 drives the reciprocating screw 9 to rotate synchronously. Since the diameter of the No. 1 gear 10 is smaller than that of the No. 2 gear 101, a reduction transmission is formed, which converts the high-speed rotation of the stirring shaft 5 into the low-speed rotation of the reciprocating screw 9. The rotational motion of the reciprocating screw 9 is converted into the linear motion of the moving frame 12 through the threaded moving block 121, thereby driving the moving frame 12 to perform reciprocating translational motion in the filter neutralization tank 3. The movement direction of the moving frame 12 and the rotation direction of the stirring rod 6 form a countercurrent effect, thereby enhancing the fluid disturbance in the tank and preventing sedimentation dead corners. At the same time, the moving frame 12 drives the scraper 13 to perform synchronous motion while performing reciprocating translational motion, thereby scraping the inner wall of the filter neutralization tank 3, scraping off the sediment attached to the tank wall and the bottom surface of the filter plate 4, and improving the internal cleanliness; At the same time, the rotation of the stirring shaft 5 drives the multiple sets of spiral impellers 25 to rotate through the gear set, which can generate centrifugal force in the diversion chamber 16, sucking the filtered wastewater from the bottom of the diversion chamber 16 and pressurizing it to the top of the circulation pipe 15, thereby diverting it to the return hose 17 and the diversion pipe 14. At the same time, the diameter of the return hose 17 is smaller than that of the circulation pipe 15, thereby accelerating the water flow entering the return hose 17, and then spraying it toward the bottom of the filter plate 4 through the nozzle 18, thereby achieving a backwash effect on the filter plate 4, avoiding blockage of the filter plate 4 and causing wastewater overflow. At the same time, the nozzle 18 During the spraying, the movable frame 12 drives the diversion pipe 14 to move back and forth, thereby backwashing each position of the filter plate 4, thereby improving the efficiency of wastewater treatment. The body 1 integrates the wastewater collection box 2, the filtration and neutralization tank 3, the sedimentation tank 30, the flotation tank 32, the centrifuge 33, the oxidation and sterilization tank 34 and the filter sand tank 35 into an integrated device with a small size and a small footprint, so that it can be accommodated in the laboratory for wastewater treatment. The water outflow from all the filter sand tanks 35 is collected through the parallel drainage pipes 36 and connected to the drainage system through the joint 37 to achieve standard discharge.

[0038] The examples of this specific embodiment are all preferred embodiments of this application and are not intended to limit the scope of protection of this application. Identical components are represented by the same reference numerals. Therefore, any equivalent changes made based on the structure, shape, and principle of this application should be included in the scope of protection of this application.

Claims

1. A laboratory wastewater treatment all-in-one machine, comprising a machine body (1), characterized in that: A wastewater collection box (2) is provided on one side of the machine body (1), a collection bucket (201) is provided inside the wastewater collection box (2), a water collection pool (202) is provided on the top of the wastewater collection box (2), the drainage end of the water collection pool (202) matches the collection bucket (201), a guide pipe (203) is provided on one side of the bottom of the collection bucket (201), and a water pump (204) is provided in the middle of the guide pipe (203), a filtering and neutralizing pool (3) is provided on the top of the inner cavity of the machine body (1), and the filtering and neutralizing pool ( 3) is connected to a filter plate (4), the middle inner wall of the filtering and neutralizing tank (3) is connected to a stirring shaft (5) through a bearing, and stirring rods (6) are arranged equidistantly on the surface of the stirring shaft (5), and a dosing box (601) is arranged on one side of the outer wall of the filtering and neutralizing tank (3), and a drug outlet (602) is provided on one side of the dosing box (601), and a servo motor (7) is fixedly connected to the outer wall of one side of the filtering and neutralizing tank (3), and the output end of the servo motor (7) and the stirring shaft (5) are connected via a coupling.

2. The laboratory wastewater treatment integrated machine according to claim 1, characterized in that: A driving cavity (8) is provided on the inner wall of one side of the filtering and neutralizing tank (3), and a reciprocating screw (9) is connected to the inner wall of the bottom of the filtering and neutralizing tank (3) via a bearing. One end of the reciprocating screw (9) and the stirring shaft (5) both extend into the driving cavity (8), and the reciprocating screw (9) and the stirring shaft (5) are both connected to the inner wall of the driving cavity (8) via a bearing.

3. The laboratory wastewater treatment integrated machine according to claim 2, characterized in that: The outer wall of one side of the stirring shaft (5) located inside the driving chamber (8) is fixedly connected to a first gear (10), the outer wall of one side of the reciprocating screw (9) is fixedly connected to a second gear (101), the first gear (10) and the second gear (101) are connected via a transmission toothed belt (11), and the diameter of the first gear (10) is smaller than that of the second gear (101), a moving frame (12) is provided on the middle inner wall of the filtering and neutralizing tank (3), a threaded moving block (121) is fixedly connected to the middle inner wall of the moving frame (12), and the threaded moving block (121) is threadedly connected to the reciprocating screw (9).

4. The integrated laboratory wastewater treatment machine according to claim 3, characterized in that: The outer wall of the movable frame (12) is fixedly connected to a scraper bar (13), and the outer wall of the scraper bar (13) abuts against the inner wall of the filter neutralization tank (3). A diverter pipe (14) is provided on the top of the movable frame (12), and a nozzle (18) is arranged and connected to the top of the diverter pipe (14), and the nozzle (18) corresponds to the filter plate (4).

5. The integrated laboratory wastewater treatment machine according to claim 4, characterized in that: A circulation pipe (15) is connected to the outer wall of one side of the filtering and neutralization tank (3), a diversion cavity (16) is provided in the middle of the circulation pipe (15), a return hose (17) is connected to the top end of the circulation pipe (15), and the end of the return hose (17) away from the circulation pipe (15) is connected to the diversion pipe (14).

6. The integrated laboratory wastewater treatment machine according to claim 5, characterized in that: One end of the stirring shaft (5) away from the servo motor (7) extends to the outside of the filter neutralization tank (3), and the outer wall of the end of the stirring shaft (5) is fixedly connected to the third gear (19), and the outer wall of one side of the filter neutralization tank (3) is connected to the driving shaft (20) through a bearing, and the outer wall of one side of the driving shaft (20) is fixedly connected to the fourth gear (21), the third gear (19) is meshed with the fourth gear (21), and the diameter of the third gear (19) is larger than that of the fourth gear (21), one end of the driving shaft (20) extends into the guide cavity (16) and is connected to the first bevel gear (22), and the driving shaft (20) is movably connected to the inner wall of the guide cavity (16) through a sealed bearing.

7. The integrated laboratory wastewater treatment machine according to claim 6, characterized in that: An auxiliary frame (23) is fixedly connected to an outer wall of one side of the guide chamber (16), an impeller shaft (24) is fixedly connected to an outer wall of one side of the auxiliary frame (23) via a bearing, and spiral impellers (25) are equidistantly connected to the outer wall of the impeller shaft (24), and a second bevel gear (26) is fixedly connected to the bottom end of the impeller shaft (24), the second bevel gear (26) is meshed with the first bevel gear (22), and the diameter of the second bevel gear (26) is smaller than that of the first bevel gear (22).

8. The integrated laboratory wastewater treatment machine according to claim 6, characterized in that: A pH detection probe (27) is provided on the inner wall of one side of the filtering and neutralizing tank (3), and electromagnetic valves (603) are provided at the ends of the multiple groups of the drug outlets (602). One side of the bottom of the filtering and neutralizing tank (3) is connected to a No. 1 drainage pipe (28), and a No. 1 electric valve (29) is provided in the middle of the No. 1 drainage pipe (28). A sedimentation tank (30) is provided at the bottom of the filtering and neutralizing tank (3), and the sedimentation tank (30) is connected to the No. 1 drainage pipe (28).

9. The integrated laboratory wastewater treatment machine according to claim 8, characterized in that: The bottom end of the sedimentation tank (30) is connected to the flotation tank (32) through the No. 2 drainage pipe (301), the water outlet of the flotation tank (32) is connected to the centrifuge (33) through the No. 3 drainage pipe (321), the drainage end of the centrifuge (33) is connected to the oxidation sterilization tank (34) through the No. 4 drainage pipe (331), the bottom end of the body (1) is connected to the sand filter tank (35), the drainage end of the oxidation sterilization tank (34) is connected to the sand filter tank (35) through the No. 5 drainage pipe (341), the water inlets of the multiple groups of the sand filter tanks (35) are connected in parallel, and the water outlets of the sand filter tanks (35) are connected in parallel to the drainage pipe (36), and the drainage pipe (36) extends to the outside of the body (1) and is connected to the joint (37).

10. The integrated laboratory wastewater treatment machine according to claim 9, characterized in that: The interior of the sand filter tank (35) is provided with a modified PP fiber ball layer (38), a quartz sand layer (39) and a magnetite layer (40) in sequence from top to bottom, a No. 1 activated carbon filter layer (41) is provided between the modified PP fiber ball layer (38) and the quartz sand layer (39), a No. 2 activated carbon filter layer (42) is provided between the activated carbon quartz sand layer (39) and the magnetite layer (40), and the outer walls of the No. 1 activated carbon filter layer (41) and the No. 2 activated carbon filter layer (42) are covered with a stainless steel orifice plate (43), and a magnetic ion exchange resin is mixed inside the magnetite layer (40).

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