Laboratory sewage environment-friendly treatment device
By designing a laboratory sewage environmentally friendly treatment device containing quantitative components and stirring components, the problem of difficult to control the amount of addition when manually adding the reaction solution is solved, and accurate amount of addition of the reaction solution and sufficient stirring of the sewage are achieved, and the treatment effect and operation efficiency are improved.
Patent Information
- Application Number
- CN202420682637.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-04-03
- Publication Date
- 2025-05-02
- Estimated Expiration
- 2034-04-03
AI Technical Summary
When the existing laboratory sewage treatment device manually adds the reaction solution, the amount of addition is difficult to control, resulting in waste of resources or poor treatment effect, and complex operation and low work efficiency.
An environmentally friendly treatment device for laboratory sewage is designed, including reaction barrels, sewage filling buckets, reaction solution filling buckets, quantitative cylinders, stirring components and quantitative components. The quantitative component uses the laser emitter and the laser receiver to determine the water level, and combines the power of the stirring component to achieve quantitative addition of the reaction solution and sufficient stirring of the wastewater.
The accurate amount of reaction solution is added, the sewage treatment effect is ensured, resource waste is avoided, the operation process is simplified, and work efficiency is improved.
Smart Images
Figure CN222821260U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of sewage treatment, in particular to an environmentally friendly laboratory sewage treatment device. Background Art
[0002] Chemical experiments often produce a lot of sewage, which usually contains a lot of chemical substances. It needs to be treated before it can be discharged or reused, which requires the use of sewage treatment equipment. Most of the existing sewage treatment equipment purifies the sewage by adding special agents to the sewage to meet the discharge standards or for recycling.
[0003] However, the existing laboratory sewage treatment device still has the following problems when in use:
[0004] When using traditional laboratory sewage treatment equipment, users are usually required to manually add reaction solution for sewage treatment. However, when adding reaction solution manually, the amount of addition is difficult to control. Adding too much will cause waste of resources, and adding too little will lead to insufficient sewage treatment effect. Moreover, the amount of sewage to be treated each time is different. If the amount of sewage to be treated is measured in advance and the corresponding amount of reaction solution is prepared, the operation is complicated and troublesome, and the work efficiency is low.
[0005] In view of the above problems, the present utility model document proposes an environmentally friendly laboratory sewage treatment device. Utility Model Content
[0006] The utility model aims to solve the shortcomings in the prior art that when the reaction solution is added manually, the addition amount is inconvenient to control, and it is inconvenient to use the corresponding amount of reaction solution according to the treatment amount of different sewage, and proposes a laboratory sewage environmental protection treatment device.
[0007] In order to achieve the above purpose, the utility model adopts the following technical solutions:
[0008] A laboratory sewage environmental protection treatment device, comprising:
[0009] A shell, wherein a reaction barrel is fixedly installed inside the shell, and the reaction barrel is used for storing and reacting sewage;
[0010] It also includes a sewage filling bucket and a reaction solution filling bucket, the top ends of the sewage filling bucket and the reaction solution filling bucket are fixedly penetrated through the top of the shell, the bottom end of the sewage filling bucket is fixedly penetrated through the top of the reaction barrel, the sewage filling bucket is used for filling sewage, the bottom of the reaction solution filling bucket is fixedly connected with a feeding tube, the reaction solution filling bucket is used for adding reaction solution, the bottom of the reaction solution filling bucket is provided with a quantitative cylinder, one end of the feeding tube is fixedly penetrated through the top of the quantitative cylinder and extends into the quantitative cylinder, the quantitative cylinder is connected with the interior of the reaction barrel through a pipeline, and the quantitative cylinder is used for quantitative storage of the reaction solution;
[0011] It also includes a drain pipe, one end of which is fixedly passed through the bottom of the reaction barrel, and the other end of which is fixedly passed through one side of the shell. A valve is provided on the drain pipe, and the valve is located outside the shell. The drain pipe is used to conveniently discharge the sewage in the reaction barrel;
[0012] It also includes a quantitative component, which can quantify the amount of reaction solution in the quantitative cylinder according to the amount of sewage in the reaction barrel;
[0013] It also includes a stirring component, which can stir and mix the sewage and the reaction solution in the reaction barrel.
[0014] In one possible design, the stirring assembly includes a stirring shaft that rotates and passes through the top of the reaction barrel, one end of the stirring shaft extends into the reaction barrel, and a plurality of stirring rods are fixedly installed on the outer wall of the stirring shaft. The plurality of stirring rods can stir the sewage and the reaction solution, and a motor and an electromagnetic clutch are fixedly installed on the top of the reaction barrel through a bracket, the motor is located above the electromagnetic clutch, one end of the output shaft of the motor is fixedly connected to the input shaft of the electromagnetic clutch, and one end of the output main shaft of the electromagnetic clutch is fixedly connected to the top of the stirring shaft.
[0015] In a possible design, the quantitative component includes a lifting ring slidably sleeved on the outer wall of the reaction barrel, a reciprocating screw is rotatably installed on one side of the reaction barrel through a bracket, one side of the lifting ring is threadedly connected to the reciprocating screw through a convex plate, a synchronous wheel is fixedly installed on the top of the reciprocating screw, the synchronous wheel is connected to the output branch shaft of the electromagnetic clutch through a synchronous belt transmission, a rack is fixedly installed on one side of the lifting ring, a rotating shaft is rotatably installed on the top of the reaction barrel through a bracket, a worm and a gear are fixedly sleeved on the outer wall of the rotating shaft, the gear is meshed with the rack, the worm is meshed with a worm wheel, a screw is fixedly penetrated inside the worm wheel, one end of the screw is rotatably connected to the top of the reaction barrel, the other end of the screw is sealed and rotatably penetrates the bottom of the quantitative cylinder and is rotatably connected to the top inner wall of the quantitative cylinder, a piston plate is sealably and slidably provided inside the quantitative cylinder, the piston plate is sealably and slidably sleeved on the outer wall of the feeding tube, the screw is threadedly connected to the piston plate, and the piston plate is used to quantitatively draw the reaction solution in the reaction solution filling bucket into the quantitative cylinder.
[0016] In one possible design, a connecting pipe is fixedly connected to one side of the reaction barrel, and the reaction barrel and the connecting pipe are both made of transparent materials. The interiors of the reaction barrel and the connecting pipe are connected to the outside atmosphere. A floating plate is slidably arranged inside the connecting pipe, and the interior of the floating plate is a breathable structure. A laser receiver is fixedly installed on the top of the floating plate, and a laser transmitter is fixedly installed on one side of the lifting ring. The laser transmitter cooperates with the laser receiver to judge the water level in the reaction barrel.
[0017] In one possible design, a solenoid valve is provided on the pipe connecting the metering cylinder and the reaction barrel, which is used to isolate and seal the metering cylinder and the reaction barrel. An auxiliary solenoid valve is provided on the outer wall of the feeding tube. The auxiliary solenoid valve is located at the connection between the feeding tube and the reaction solution filling bucket, and is used to isolate and seal the reaction solution filling bucket and the feeding tube.
[0018] In a possible design, an observation window is provided on one side of the shell, and the observation window is used to facilitate the user to observe the water storage amount in the reaction barrel.
[0019] In a possible design, an annular baffle is fixedly installed on the top of the shell, and the tops of the sewage filling bucket and the reaction solution filling bucket are both located inside the annular baffle. The annular baffle is used to block liquid that accidentally leaks during addition to prevent it from polluting the surrounding environment.
[0020] In the present application, when in use, the user can add the reaction solution to be used into the reaction solution filling bucket; then the user can add sewage into the reaction barrel through the sewage filling bucket. As the sewage is added, the water level in the reaction barrel continues to rise, and at the same time, the water level in the connecting pipe will be consistent with the water level in the reaction barrel, so the float will drive the laser receiver to continue to rise until the water level remains stationary; then the user can start the device, at which time the motor can drive the stirring shaft to rotate through the electromagnetic clutch, and the stirring shaft can stir the solution in the reaction barrel through multiple stirring rods on the outer wall; on the other hand, when the laser receiver does not receive the laser signal sent by the laser transmitter, the output sub-shaft of the electromagnetic clutch will start and drive the reciprocating screw to rotate, thereby enabling the lifting ring to move up and down, and when the lifting ring drives the laser transmitter to be flush with the laser receiver, the output sub-shaft of the electromagnetic clutch will stop rotating. When the lifting ring moves, the lifting ring will be flush with the water level in the reaction barrel; when the lifting ring moves, the rack can drive the worm to rotate under the connection of the gear, and the worm will drive the worm wheel to rotate, thereby causing the screw to rotate in the quantitative cylinder, and further complete the up and down movement of the piston plate. When the piston plate rises, the reaction solution in the reaction solution filling bucket can be drawn into the quantitative cylinder, and different amounts of reaction solution can be drawn in according to different water levels. When the user needs to add reaction solution, the solenoid valve is opened at this time, and the solution in the quantitative cylinder will enter the reaction barrel. At the same time, the auxiliary solenoid valve on the feeding pipe can synchronously close the feeding pipe to prevent the reaction solution from entering the quantitative cylinder again due to slight changes in the water level; as the stirring proceeds, the sewage in the reaction barrel can be fully reacted. When the user needs to discharge the sewage after reaction treatment, he only needs to open the valve on the drain pipe, and the treated sewage in the reaction barrel can be discharged through the drain pipe.
[0021] Beneficial effects:
[0022] In the utility model, the laboratory sewage environmental treatment device can stir the sewage and the reaction solution in the reaction barrel through the stirring component, which is conducive to the full mixing of the sewage and the reaction solution and is conducive to the treatment of the sewage;
[0023] In the utility model, the laboratory sewage environmental treatment device can use a laser transmitter and a laser receiver to judge the sewage water level in the reaction barrel through a quantitative component, and can also use the power of the stirring component to drive the piston plate in the quantitative cylinder, so that a corresponding amount of reaction solution can be extracted according to different water level heights in the reaction barrel, which is conducive to ensuring that the amount of reaction solution added is more accurate, ensuring a better sewage treatment effect, not prone to waste of resources, and more environmentally friendly;
[0024] In the utility model, the laboratory sewage environmental protection treatment device can stir the sewage and the reaction solution in the reaction barrel, which is beneficial to fully mix the sewage and the reaction solution and is beneficial to the treatment of the sewage. At the same time, the laser transmitter and the laser receiver can be used to judge the sewage water level in the reaction barrel, and the power of the stirring component can be used to drive the piston plate in the quantitative cylinder, and the corresponding amount of reaction solution can be extracted according to the different water level heights in the reaction barrel, which is beneficial to ensure that the addition amount of the reaction solution is more accurate, ensures that the sewage treatment effect is better, is less likely to waste resources, and is more environmentally friendly. BRIEF DESCRIPTION OF THE DRAWINGS
[0025] Figure 1 This is a three-dimensional structural schematic diagram of a laboratory sewage environmental protection treatment device proposed by the utility model;
[0026] Figure 2 This is a cross-sectional structural schematic diagram of a laboratory sewage environmental protection treatment device proposed by the utility model;
[0027] Figure 3 This is a schematic diagram of the internal structure of the shell of a laboratory sewage environmental protection treatment device proposed by the utility model;
[0028] Figure 4 This is a schematic diagram of the lifting ring structure of a laboratory sewage environmental protection treatment device proposed by the utility model;
[0029] Figure 5 This is a schematic diagram of the enlarged structure of part A of a laboratory sewage environmental treatment device proposed by the utility model;
[0030] Figure 6 This is a schematic diagram of the screw drive structure of a laboratory sewage environmental treatment device proposed by the utility model;
[0031] Figure 7 This is a schematic diagram of the enlarged structure of part B of a laboratory sewage environmental protection treatment device proposed by the utility model.
[0032] In the figure: 1. outer shell; 2. sewage filling bucket; 3. reaction solution filling bucket; 4. reaction barrel; 5. connecting pipe; 6. drainage pipe; 7. metering cylinder; 8. feeding pipe; 9. stirring shaft; 10. stirring rod; 11. lifting ring; 12. reciprocating screw; 13. motor; 14. electromagnetic clutch; 15. synchronous wheel; 16. rack; 17. laser transmitter; 18. floating plate; 19. laser receiver; 20. gear; 21. rotating shaft; 22. worm; 23. worm wheel; 24. screw; 25. piston plate; 26. solenoid valve; 27. observation window. DETAILED DESCRIPTION
[0033] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.
[0034] Example 1
[0035] Reference Figure 1-7 A sewage treatment device includes: a shell 1, a sewage filling bucket 2, a reaction solution filling bucket 3, a reaction barrel 4, a connecting pipe 5, a drain pipe 6, a quantitative cylinder 7, a feeding pipe 8, a stirring shaft 9, a stirring rod 10, a lifting ring 11, a reciprocating screw 12, a motor 13, an electromagnetic clutch 14, a synchronous wheel 15, a rack 16, a laser transmitter 17, a floating plate 18, a laser receiver 19, a rotating shaft 20, a gear 20, a worm 22, a worm wheel 23, a screw 24, a piston plate 25 and a solenoid valve 26.
[0036] A reaction bucket 4 is fixedly installed inside the housing 1 for storing and reacting sewage. The tops of the sewage filling bucket 2 and the reaction solution filling bucket 3 are fixedly penetrated through the top of the housing 1 for adding sewage and reaction solution respectively. The bottom end of the sewage filling bucket 2 is fixedly penetrated through the top of the reaction bucket 4 for introducing sewage into the reaction bucket 4.
[0037] The bottom of the reaction solution filling hopper 3 is connected to the quantitative cylinder 7 through the feeding tube 8, and the bottom end of the feeding tube 8 extends to the position of the quantitative cylinder 7 near the bottom, and the quantitative cylinder 7 is connected to the inside of the reaction barrel 4 through a pipeline. The quantitative cylinder 7 is used for quantitative storage of the reaction solution, and the storage amount of the reaction solution can be adjusted according to the amount of sewage in the reaction barrel 4. Optionally, the reaction solution filling hopper 3 can be replaced with a reaction solution storage barrel, which has a similar use effect and can facilitate the storage of more reaction solutions.
[0038] One end of the drain pipe 6 is fixedly passed through the bottom of the reaction barrel 4 , and the other end is fixedly passed through one side of the shell 1 . A valve is provided on the drain pipe 6 , and the drain pipe 6 is used to conveniently discharge the sewage in the reaction barrel 4 .
[0039] The stirring assembly includes a stirring shaft 9 that rotates and passes through the top of the reaction barrel 4. One end of the stirring shaft 9 extends into the reaction barrel 4, and a plurality of stirring rods 10 are fixedly installed on the outer wall of the stirring shaft 9. The motor 13 and the electromagnetic clutch 14 are both installed on the top of the reaction barrel 4 through a bracket. One end of the output shaft of the motor 13 is fixedly connected to the input shaft of the electromagnetic clutch 14, and one end of the output main shaft of the electromagnetic clutch 14 is fixedly connected to the top of the stirring shaft 9. The electromagnetic clutch 14 is driven by the motor 13 to work, which can drive the stirring shaft 9 to rotate, and then the plurality of stirring rods 10 stir the liquid in the reaction barrel 4, thereby achieving full mixing of the sewage and the reaction solution.
[0040] The quantitative assembly includes a lifting ring 11 slidably sleeved on the outer wall of the reaction barrel 4, a reciprocating screw 12 rotatably arranged on one side of the reaction barrel 4, and the lifting ring 11 is threadedly connected to the reciprocating screw 12 through a convex plate. A synchronous wheel 15 is fixedly installed on the top of the reciprocating screw 12, and the synchronous wheel 15 is connected to the output branch shaft of the electromagnetic clutch 14 through a synchronous belt transmission. A rack 16 is fixedly installed on one side of the lifting ring 11, and the rack 16 is meshed with a gear 20, and the gear 20 is fixedly sleeved on the outer wall of the rotating shaft 21. A worm 22 is also fixedly sleeved on the rotating shaft 21, and the worm 22 is meshed with a worm wheel 23. A screw 24 is fixedly penetrated inside the worm wheel 23, and one end of the screw 24 is rotatably connected to the top of the reaction barrel 4, and the other end is sealed and rotatably penetrates the bottom of the quantitative cylinder 7 and is rotatably connected to the top inner wall of the quantitative cylinder 7. The inside of the metering cylinder 7 is sealed and slidably provided with a piston plate 25, which is sealingly and slidably sleeved on the outer wall of the feeding tube 8 and threadedly connected with the screw 24. The quantitative component is used to allow the reaction solution to enter the metering cylinder 7 quantitatively, which can avoid the situation of excessive or insufficient use of reaction solution.
[0041] In this embodiment, a connecting pipe 5 is fixedly connected to one side of the reaction barrel 4. Both the reaction barrel 4 and the connecting pipe 5 are made of transparent materials. The interiors of the reaction barrel 4 and the connecting pipe 5 are connected to the outside atmosphere. A floating plate 18 is slidably arranged inside the connecting pipe 5. The interior of the floating plate 18 is a breathable structure. A laser receiver 19 is fixedly installed on the top of the floating plate 18. A laser transmitter 17 is fixedly installed on one side of the lifting ring 11. The laser transmitter 17 cooperates with the laser receiver 19 to judge the water level in the reaction barrel 4.
[0042] In this embodiment, a solenoid valve 26 is provided on the pipeline connecting the metering cylinder 7 and the reaction barrel 4, which is used to partition and seal the metering cylinder 7 and the reaction barrel 4. An auxiliary solenoid valve is provided on the outer wall of the feeding tube 8. The auxiliary solenoid valve is located at the connection between the feeding tube 8 and the reaction solution filling bucket 3, and is used to partition and seal the reaction solution filling bucket 3 and the feeding tube 8.
[0043] In this embodiment, an observation window 27 is provided on one side of the housing 1 to facilitate the user to observe the water storage amount in the reaction barrel 4 .
[0044] In this embodiment, an annular baffle is fixedly installed on the top of the housing 1 to block the liquid accidentally leaking out during addition to prevent it from polluting the surrounding environment.
[0045] The present application can be used in the field of laboratory wastewater treatment technology, and can also be used in other fields applicable to the present application.
[0046] Example 2
[0047] refer to Figure 1 , 24 and 5 are improvements based on Example 1: a laboratory sewage environmental treatment device, which is applied to the field of laboratory sewage treatment technology;
[0048] In this embodiment, a control box is provided on one side of the housing 1 to facilitate the user to operate the device in the housing 1 .
[0049] However, as is well known to those skilled in the art, the working principles and wiring methods of the motor 13, electromagnetic clutch 14, laser transmitter 17, laser receiver 19, solenoid valve 26 and auxiliary solenoid valve are commonplace, and are conventional means or common knowledge, and will not be elaborated here. Those skilled in the art can make any optional selections according to their needs or convenience.
[0050] The working principle and use process of the present technical solution are as follows: when in use, the user can add the reaction solution to be used into the reaction solution filling bucket 3; then the user can add sewage into the reaction barrel 4 through the sewage filling bucket 2. As the sewage is added, the water level in the reaction barrel 4 continues to rise, and at the same time, the water level in the connecting pipe 5 will be consistent with the water level in the reaction barrel 4, so the float 18 will drive the laser receiver 19 to continue to rise until the water level remains stationary; then the user can start the device, at which time the motor 13 can drive the stirring shaft 9 to rotate through the electromagnetic clutch 14, and the stirring shaft 9 can stir the solution in the reaction barrel 4 through multiple stirring rods 10 on the outer wall; on the other hand, when the laser receiver 19 does not receive the laser signal sent by the laser transmitter 17, the output sub-shaft of the electromagnetic clutch 14 will start and drive the reciprocating screw 12 to rotate, thereby enabling the lifting ring 11 to move up and down, and when the lifting ring 11 drives the laser transmitter 17 to be flush with the laser receiver 19, the output of the electromagnetic clutch 14 The split shaft will stop rotating, and the lifting ring 11 will be flush with the water level in the reaction barrel 4; when the lifting ring 11 moves, the rack 16 can drive the worm 22 to rotate under the connection of the gear 20, and the worm 22 will drive the worm wheel 23 to rotate, thereby causing the screw 24 to rotate in the quantitative cylinder 7, and further complete the up and down movement of the piston plate 25. When the piston plate 25 rises, the reaction solution in the reaction solution filling bucket 3 can be drawn into the quantitative cylinder 7, and different amounts of reaction solution can be drawn in according to different water levels. When the user needs to add reaction solution, the solenoid valve 26 is opened at this time, and the solution in the quantitative cylinder 7 will enter the reaction barrel 4. At the same time, the auxiliary solenoid valve on the feeding pipe 8 can synchronously close the feeding pipe 8 to prevent the reaction solution from entering the quantitative cylinder 7 again due to slight changes in the water level; as the stirring proceeds, the sewage in the reaction barrel 4 can be fully reacted. When the user needs to discharge the sewage after the reaction treatment, he only needs to open the valve on the drain pipe 6, and the sewage treated in the reaction barrel 4 can be completely discharged by using the drain pipe 6.
[0051] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.
Claims
1. A laboratory wastewater environmental treatment device, characterized in that: include: A shell (1), wherein a reaction barrel (4) is fixedly installed inside the shell (1), and the reaction barrel (4) is used for storing and reacting sewage; It also comprises a sewage filling hopper (2) and a reaction solution filling hopper (3), the top ends of the sewage filling hopper (2) and the reaction solution filling hopper (3) are fixedly passed through the top of the housing (1), the bottom end of the sewage filling hopper (2) is fixedly passed through the top of the reaction barrel (4), the sewage filling hopper (2) is used for filling sewage, the bottom of the reaction solution filling hopper (3) is fixedly connected with a feeding tube (8), the reaction solution filling hopper (3) is used for adding reaction solution, a quantitative cylinder (7) is arranged at the bottom of the reaction solution filling hopper (3), one end of the feeding tube (8) is fixedly passed through the top of the quantitative cylinder (7) and extends into the quantitative cylinder (7), the quantitative cylinder (7) is connected with the inside of the reaction barrel (4) through a pipeline, and the quantitative cylinder (7) is used for quantitative storage of reaction solution; It also comprises a drain pipe (6), one end of which is fixedly passed through the bottom of the reaction barrel (4), and the other end of which is fixedly passed through one side of the shell (1), and a valve is provided on the drain pipe (6), and the valve is located outside the shell (1), and the drain pipe (6) is used to conveniently discharge the sewage in the reaction barrel (4); It also includes a quantitative component, which can quantify the amount of reaction solution in the quantitative cylinder (7) according to the amount of sewage in the reaction barrel (4); It also comprises a stirring component, which can stir and mix the sewage and the reaction solution in the reaction barrel (4).
2. A laboratory wastewater environmental treatment device according to claim 1, characterized in that: The stirring assembly comprises a stirring shaft (9) which rotates and passes through the top of the reaction barrel (4), one end of the stirring shaft (9) extends into the reaction barrel (4), a plurality of stirring rods (10) are fixedly mounted on the outer wall of the stirring shaft (9), and the plurality of stirring rods (10) can stir the sewage and the reaction solution, and a motor (13) and an electromagnetic clutch (14) are fixedly mounted on the top of the reaction barrel (4) through a bracket, the motor (13) is located above the electromagnetic clutch (14), one end of the output shaft of the motor (13) is fixedly connected to the input shaft of the electromagnetic clutch (14), and one end of the output main shaft of the electromagnetic clutch (14) is fixedly connected to the top of the stirring shaft (9).
3. A laboratory wastewater environmental treatment device according to claim 2, characterized in that: The quantitative assembly comprises a lifting ring (11) slidably mounted on the outer wall of a reaction barrel (4); a reciprocating screw (12) is rotatably mounted on one side of the reaction barrel (4) via a bracket; one side of the lifting ring (11) is threadedly connected to the reciprocating screw (12) via a convex plate; a synchronous wheel (15) is fixedly mounted on the top of the reciprocating screw (12); the synchronous wheel (15) is connected to the output shaft of the electromagnetic clutch (14) via a synchronous belt transmission; a rack (16) is fixedly mounted on one side of the lifting ring (11); a rotating shaft (21) is rotatably mounted on the top of the reaction barrel (4) via a bracket; a worm (22) and a gear (20) are fixedly mounted on the outer wall of the rotating shaft (21); the gear (20) is fixedly mounted on the outer wall of the rotating shaft (21); 0) is meshed with a rack (16), the worm (22) is meshed with a worm wheel (23), a screw (24) is fixedly passed through the interior of the worm wheel (23), one end of the screw (24) is rotatably connected to the top end of the reaction barrel (4), the other end of the screw (24) is sealed and rotatably passed through the bottom of the quantitative cylinder (7) and is rotatably connected to the top inner wall of the quantitative cylinder (7), the interior of the quantitative cylinder (7) is sealed and slidably provided with a piston plate (25), the piston plate (25) is sealingly and slidably sleeved on the outer wall of the feeding tube (8), the screw (24) is threadedly connected to the piston plate (25), and the piston plate (25) is used to quantitatively draw the reaction solution in the reaction solution filling bucket (3) into the quantitative cylinder (7).
4. A laboratory wastewater environmental treatment device according to claim 3, characterized in that: A connecting pipe (5) is fixedly connected to one side of the reaction barrel (4); the reaction barrel (4) and the connecting pipe (5) are both made of transparent materials; the interiors of the reaction barrel (4) and the connecting pipe (5) are both connected to the outside atmosphere; a floating plate (18) is slidably arranged inside the connecting pipe (5); the interior of the floating plate (18) is an air-permeable structure; a laser receiver (19) is fixedly mounted on the top of the floating plate (18); a laser transmitter (17) is fixedly mounted on one side of the lifting ring (11); the laser transmitter (17) cooperates with the laser receiver (19) to judge the water level in the reaction barrel (4).
5. The laboratory wastewater environmental protection treatment device according to claim 3 is characterized in that: A solenoid valve (26) is provided on the pipeline connecting the quantitative cylinder (7) and the reaction barrel (4) for isolating and sealing the quantitative cylinder (7) and the reaction barrel (4); an auxiliary solenoid valve is provided on the outer wall of the feeding tube (8); the auxiliary solenoid valve is located at the connection between the feeding tube (8) and the reaction solution filling bucket (3) for isolating and sealing the reaction solution filling bucket (3) and the feeding tube (8).
6. The laboratory wastewater environmental protection treatment device according to claim 1 is characterized in that: An observation window (27) is provided on one side of the housing (1), and the observation window (27) is used to facilitate a user to observe the amount of water stored in the reaction barrel (4).
7. The laboratory wastewater environmental protection treatment device according to claim 1 is characterized in that: An annular baffle is fixedly mounted on the top of the housing (1), and the tops of the sewage filling bucket (2) and the reaction solution filling bucket (3) are both located inside the annular baffle. The annular baffle is used to block liquid that accidentally leaks out during addition to prevent it from polluting the surrounding environment.