Practical training room waste liquid harmless treatment device

Abstract

The invention discloses a training room waste liquid innocent treatment device, and relates to the technical field of waste liquid innocent treatment.The training room waste liquid innocent treatment device comprises an operation frame, an operation table and a condensation chamber are installed on the operation frame, an air suction device is fixedly communicated with the operation table, and the side, away from the operation table, of the air suction device is fixedly communicated with the condensation chamber; a thermal decomposition furnace is mounted on the upper surface of the condensation chamber; according to the scheme, solid waste can be automatically filtered while waste liquid is filtered, compared with a traditional mode that filter residues are manually collected, the problem that resources are wasted due to the fact that effective separation cannot be achieved in a traditional treatment mode can be solved through the device, each resource can be utilized to the maximum degree, and the resource utilization rate is increased. The danger of manual solid waste operation is reduced, and the safety accident risk caused by misoperation or negligence is reduced.

Description

Technical Field

[0001] The present invention relates to the technical field of harmless treatment of waste liquid, and specifically to a device for harmless treatment of waste liquid in a training room. Background Art

[0002] Laboratory waste liquid refers to various waste solutions generated during daily research and experimental processes in the laboratory. These waste liquids usually contain a large amount of components harmful to the human body or the environment. If these waste liquids are not properly treated, they may cause serious harm to the environment and human health.

[0003] During the evaporation process of the waste liquid, it is often difficult to precisely control the evaporation rate. Due to the complex composition of the liquid, there are differences in physical properties such as boiling points and volatilities of different components, resulting in unpredictable and uncontrollable rate changes during the evaporation process. And directly evaporating the waste liquid requires a large amount of energy consumption because the evaporation process needs to provide sufficient heat to evaporate the water in the waste liquid, and this process often needs to be carried out continuously, so the energy consumption is high;

[0004] In addition, the existing waste liquid cannot directly and effectively collect the solid waste after filtration. For example, when laboratory personnel clean the filter residue, they may come into skin contact, leading to poisoning or chronic diseases. For example, hexavalent chromium (Cr 6+ ) in chromium-containing waste residue has strong carcinogenicity, and long-term contact can cause skin ulcers, so there is an urgent need for a device that can quickly collect and process solid waste.

[0005] Therefore, a device for harmless treatment of waste liquid in a training room is proposed to solve the above problems. Summary of the Invention

[0006] In view of this, the technical problem to be solved by the present invention is to provide a device for harmless treatment of waste liquid in a training room to solve the problems of slow evaporation rate, high energy consumption of waste liquid and ineffective collection and treatment of solid waste in the prior art.

[0007] To achieve the above object, the present invention provides the following technical solution: A method for harmless treatment of waste liquid in a training room, including:

[0008] S1, filtering and removing impurities: Start the operation table equipment, pour the waste liquid to be treated into the waste liquid hopper, and the waste liquid will remove impurities through the filtration in the separation chamber. During the filtration process, the intercepted impurities will be transported to the collection and compression device in the solid waste chamber for centralized treatment and compression under the pushing mechanism of the first push rod;

[0009] S2, continuously monitor the pH value of the waste water using an online pH meter installed in the mixing chamber and neutralize the waste water;

[0010] S3, Evaporation and Concentration: Open the drain port of the mixing chamber, and at the same time start the heating tubes installed at the bottom of the evaporation plate for heating. The neutralized waste liquid flows on the evaporation plate for evaporation.

[0011] S4, Condensation and Recovery: Drain the evaporated gas into the condensation chamber through the air suction device for condensation, and recover the condensed liquid.

[0012] S5, Tail Gas Treatment and Emission: The gas condensed in the condensation chamber is heated and decomposed by the thermal decomposition furnace above the condensation chamber.

[0013] A harmless treatment device for waste liquid in a training room, including an operation rack, on which an operation table and a condensation chamber are respectively installed. The operation table is fixedly connected with an air suction device, and the side of the air suction device away from the operation table is fixedly connected to the condensation chamber. A thermal decomposition furnace is installed on the upper surface of the condensation chamber. It also includes a filtration and evaporation mechanism and a compression and collection mechanism.

[0014] The filtration and evaporation mechanism is arranged in the operation table, and is used for the evaporation adjustment of the waste liquid.

[0015] The compression and collection mechanism is arranged on the outer surface of the operation table, and is used for the collection and compression of waste liquid impurities.

[0016] Preferably, the filtration and evaporation mechanism includes a waste liquid hopper, which is fixedly connected to the upper surface of the operation table. The inner wall of the upper surface is fixedly connected with a separation chamber. The bottom of the separation chamber is fixedly connected with a filter screen. The separation chamber is communicated with the waste liquid hopper. A first pushing rod is rotatably connected in the separation chamber. A mixing chamber is arranged below the separation chamber.

[0017] Preferably, a second pushing rod is rotatably connected in the mixing chamber. One end of the first pushing rod is fixedly connected with a first gear, and one end of the second pushing rod is fixedly connected with a second gear. The tooth surface of the first gear meshes with the second gear. In the middle of the side of the first gear away from the separation chamber, a servo drive motor is installed, and the drive shaft of the servo drive motor is fixedly connected to the middle of the first gear.

[0018] Preferably, an electric control valve is installed at the bottom of the mixing chamber. Evaporation plates are symmetrically arranged below the mixing chamber. A sliding groove is opened on the operation table. One end of the evaporation plate is rotatably connected in the sliding groove, and both sides of the other end of the evaporation plate are rotatably connected with guide rods.

[0019] Preferably, the evaporation plates are mirror-symmetrically arranged in the middle of the operation table and are vertically arranged in the operation table. The end of the guide rod away from the evaporation plate is fixedly connected with a pulling plate. A angle adjuster is threadedly connected in the middle of the pulling plate, and the bottom of the angle adjuster is rotatably connected to the upper surface of the operation table.

[0020] Preferably, the compression and collection mechanism includes a solid waste chamber fixedly connected to the outer surface of the operation table. The solid waste chamber is communicated with the separation chamber. A compression box is installed at the bottom of the solid waste chamber, and filter holes are provided at the bottoms of both the solid waste chamber and the compression box.

[0021] Preferably, a regulating disc is rotatably connected to the middle of the upper surface of the solid waste chamber. A threaded push rod is threadedly connected to the middle of the regulating disc. Limiting grooves are symmetrically provided on the threaded push rod, and the middle of the upper surface of the solid waste chamber is slidably connected in the limiting grooves.

[0022] Preferably, a buffer spring is sleeved on the outer surface of the threaded push rod. One end of the buffer spring is fixedly connected to the inner wall of the solid waste chamber, and the other end of the buffer spring is fixedly connected to a compression block. The upper surface of the middle of the compression block is fixedly connected to the threaded push rod.

[0023] Compared with the prior art, the present invention provides a harmless treatment device for waste liquid in a training room, which has the following beneficial effects:

[0024] 1. In this solution, the solid waste can be automatically filtered while the waste liquid is filtered. Compared with the traditional manual collection of filter residues, this device can avoid the waste of resources caused by ineffective separation in the traditional treatment method, so that every resource can be maximally utilized, reduce the danger of manual operation of solid waste, and reduce the risk of safety accidents caused by improper operation or negligence.

[0025] 2. The bottom of the evaporation plate is evenly provided with arc-shaped grooves, and heating pipes are evenly laid in the arc-shaped grooves; by adjusting the angle of the evaporation plate, the flow rate of the waste liquid on the evaporation plate in the mixing chamber can be controlled, so that the evaporation rate of the waste liquid can be controlled by heating the evaporation plate. The adjustable evaporation angle and flow rate make the waste liquid treatment process more flexible. According to different waste liquid characteristics and treatment requirements, the evaporation conditions can be conveniently adjusted to adapt to different treatment scenarios.

[0026] Compared with the evaporation in the traditional technology, not only is the energy consumption large and the efficiency low, but in this solution, unnecessary energy consumption can be reduced through reasonable control of the flow rate, because too fast a flow rate may cause incomplete evaporation, while too slow a flow rate may increase the energy consumption and time cost. By adjusting the evaporation angle and flow rate, the optimal evaporation conditions can be found to achieve energy conservation and consumption reduction.

[0027] 3. In this solution, by rotating the threaded push rod, the solid waste in the compression box can be quickly compressed. The liquid after compression can then flow back into the operating table for secondary neutralization and evaporation, which not only increases the convenience of equipment use but also enhances the equipment use efficiency. The compression box adopts a sliding disassembly design, making the recycling of solid waste more convenient and rapid, improving the resource utilization rate. Since the solid waste chamber has a certain degree of sealing, it can effectively reduce the harm of harmful substances generated during the solid waste compression process to the human body, ensuring the safety of the operators. Brief Description of the Drawings

[0028] Figure 1 It is a schematic three-dimensional structure diagram of the present invention;

[0029] Figure 2 It is a schematic auxiliary three-dimensional structure diagram of the present invention;

[0030] Figure 3 It is a schematic diagram of the structural connection relationship between the filtration and evaporation mechanism and the compression and collection mechanism of the present invention;

[0031] Figure 4 It is a schematic diagram of the structural connection relationship of the filtration and evaporation mechanism of the present invention;

[0032] Figure 5 of the present invention Figure 4 Enlarged view at A in;

[0033] Figure 6 It is a schematic diagram of the structural connection relationship of the compression and collection mechanism of the present invention;

[0034] Figure 7 of the present invention Figure 6 Enlarged view at B in.

[0035] In the figure:

[0036] 1. Operating frame; 11. Operating table; 12. Air suction device; 13. Condensation chamber; 14. Thermal decomposition furnace;

[0037] 2. Filtration and evaporation mechanism; 21. Waste liquid hopper; 22. Separation chamber; 23. Mixing chamber; 24. First push rod; 25. Second push rod; 26. First gear; 27. Second gear; 28. Evaporation plate; 29. Guide rod; 201. Pulling plate; 202. Angle adjuster;

[0038] 3. Compression and collection mechanism; 31. Solid waste chamber; 32. Compression box; 33. Adjusting disc; 34. Threaded push rod; 35. Limit groove; 36. Buffer spring; 37. Compression block. Detailed Embodiment

[0039] Next, in combination with the accompanying drawings in the embodiments of the present invention, the technical solutions in the embodiments of the present invention will be clearly and completely described. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0040] The present invention will be further described in detail below with reference to the drawings and embodiments.

[0041] First Embodiment

[0042] Please refer to Figures 1 to 7 as shown:

[0043] To solve the problems mentioned in the technical solution, an embodiment of the present application provides a harmless treatment device for waste liquid in a training room, including an operation frame 1, an operation table 11 and a condensation chamber 13 are respectively installed on the operation frame 1, an air suction device 12 is fixedly communicated with the operation table 11, and the side of the air suction device 12 away from the operation table 11 is fixedly communicated with the condensation chamber 13, a thermal decomposition furnace 14 is installed on the upper surface of the condensation chamber 13, and further includes a filtration evaporation mechanism 2 and a compression collection mechanism 3;

[0044] The filtration evaporation mechanism 2 is arranged in the operation table 11, and the filtration evaporation mechanism 2 is used for the evaporation adjustment of waste liquid;

[0045] The compression collection mechanism 3 is arranged on the outer surface of the operation table 11, and the compression collection mechanism 3 is used for the collection and compression of waste liquid impurities;

[0046] Specifically, as Figures 3 to 5 shown, a waste liquid hopper 21 is fixedly communicated with the upper surface of the operation table 11, a separation chamber 22 is fixedly connected to the inner wall of the upper surface, a filter screen is fixedly connected to the bottom of the separation chamber 22, the separation chamber 22 is communicated with the waste liquid hopper 21, a first pushing rod 24 is rotatably connected in the separation chamber 22, and a mixing chamber 23 is arranged below the separation chamber 22; a second pushing rod 25 is rotatably connected in the mixing chamber 23, one end of the first pushing rod 24 is fixedly connected with a first gear 26, one end of the second pushing rod 25 is fixedly connected with a second gear 27, the tooth surface of the first gear 26 meshes with the second gear 27, and a servo drive motor is installed in the middle of the side of the first gear 26 away from the separation chamber 22, and the drive shaft of the servo drive motor is fixedly connected to the middle of the first gear 26;

[0047] Among them, the outer surfaces of both the first pushing rod 24 and the second pushing rod 25 are fixed with threaded arc-shaped leaves. By rotating the first pushing rod 24, the preliminarily filtered impurities can be pushed into the solid waste chamber 31 through the first pushing rod 24 for collection; by rotating the second pushing rod 25, the waste liquid can be stirred and neutralized.

[0048] This solution is designed to automatically filter solid waste while filtering liquid waste. Compared with the traditional method of manually collecting filter residues, this device can avoid the problem of resource waste caused by ineffective separation in the traditional treatment method, maximize the utilization of each resource, reduce the danger of manually operating solid waste, and reduce the risk of safety accidents caused by improper operation or negligence.

[0049] Furthermore, an electric control valve is installed at the bottom of the mixing chamber 23. Evaporation plates 28 are symmetrically arranged below the mixing chamber 23. A chute is opened on the operation table 11. One end of the evaporation plate 28 is rotatably connected in the chute, and both sides of the other end of the evaporation plate 28 are rotatably connected with guide rods 29; the evaporation plates 28 are mirror-symmetrically arranged in the middle of the operation table 11, the evaporation plates 28 are vertically arranged in the operation table 11, and a pull plate 201 is fixedly connected to the end of the guide rod 29 far away from the evaporation plate 28. A angle adjuster 202 is threadedly connected to the middle of the pull plate 201, and the bottom of the angle adjuster 202 is rotatably connected to the upper surface of the operation table 11;

[0050] Among them, arc-shaped grooves are evenly opened at the bottom of the evaporation plate 28, and heating pipes are evenly laid in the arc-shaped grooves; by adjusting the angle of the evaporation plate 28, the flow rate of the liquid waste in the mixing chamber 23 on the evaporation plate 28 can be controlled, so that the evaporation rate of the liquid waste can be controlled by heating the evaporation plate 28. The adjustable evaporation angle and flow rate make the liquid waste treatment process more flexible. According to different liquid waste characteristics and treatment requirements, the evaporation conditions can be conveniently adjusted to adapt to different treatment scenarios.

[0051] This solution can reduce unnecessary energy consumption through reasonable flow rate control, because too fast a flow rate may lead to incomplete evaporation, while too slow a flow rate may increase energy consumption and time costs. By adjusting the evaporation angle and flow rate, the optimal evaporation conditions can be found to achieve energy conservation and consumption reduction.

[0052] Further as Figure 6 and Figure 7 shown, the solid waste chamber 31 is fixedly connected to the outer surface of the operation table 11. The solid waste chamber 31 is communicated with the separation chamber 22. A compression box 32 is installed at the bottom of the solid waste chamber 31. Filter holes are opened at the bottoms of the solid waste chamber 31 and the compression box 32;

[0053] Among them, an inclined surface diversion groove is opened at the bottom of the solid waste chamber 31. The diversion groove is communicated with the operation table 11. The liquid waste after compression extrusion can flow onto the evaporation plate 28 for secondary evaporation and utilization.

[0054] Further, a regulating disc 33 is rotatably connected to the middle of the upper surface of the solid waste chamber 31. A threaded push rod 34 is threadedly connected to the middle of the regulating disc 33. Symmetrical limiting grooves 35 are formed on the threaded push rod 34. The middle of the upper surface of the solid waste chamber 31 is slidably connected in the limiting grooves 35. A buffer spring 36 is sleeved on the outer surface of the threaded push rod 34. One end of the buffer spring 36 is fixedly connected to the inner wall of the solid waste chamber 31, and the other end of the buffer spring 36 is fixedly connected to a compression block 37. The middle upper surface of the compression block 37 is fixedly connected to the threaded push rod 34.

[0055] In this solution, by rotating the threaded push rod 34, the solid waste located in the compression box 32 can be quickly compressed. The liquid after compression can then flow back into the operating table 11 for secondary neutralization and evaporation. This not only increases the convenience of equipment use but also enhances the equipment use efficiency. The compression box 32 is designed with a sliding and detachable structure, making the recycling and utilization of solid waste more convenient and fast, improving the resource utilization rate. Since the solid waste chamber 31 has a certain degree of sealing, it can effectively reduce the harm of harmful substances generated during the solid waste compression process to the human body and ensure the safety of the operators.

[0056] Second Embodiment

[0057] A method for harmless treatment of waste liquid in a training room is as follows:

[0058] S1. Filtration and impurity removal: Start the equipment on the operating table 11, pour the waste liquid to be treated into the waste liquid hopper 21, and the waste liquid will be filtered through the separation chamber 22 to remove impurities. During the filtration process, the intercepted impurities will be pushed by the pushing mechanism of the first push rod 24 and transported to the collection and compression device in the solid waste chamber 31 for centralized treatment and compression.

[0059] The specific operation steps are as follows:

[0060] First, control the servo motor installed in the operating table 11 through the control device on the operating table 11 to start rotating. Since the driving shaft of the servo motor is fixed to the first gear 26, the first gear 26 can be driven to rotate synchronously by the servo motor. When the first gear 26 rotates, it can drive the second gear 27 to rotate in the opposite direction. When the first gear 26 rotates, the solid waste generated during the filtration of the waste liquid in the separation chamber 22 can be pushed into the solid waste chamber 31 for collection. After the filtered waste liquid flows into the mixing chamber 23, the second push rod 25 is driven to rotate synchronously by the rotation of the second gear 27 to stir the waste liquid.

[0061] S2. Continuously monitor the pH value of the waste water using the on-line pH meter installed in the mixing chamber 23 and neutralize the waste water.

[0062] After the waste liquid is neutralized by the operator, the second pusher rod 25 can be rotated to quickly stir the waste liquid, so that the waste liquid can be neutralized more evenly, reducing the occurrence of local uniformity phenomena. Stirring allows the acid / alkali reagent to be fully mixed with the wastewater, reducing the concentration gradient and accelerating the neutralization reaction rate. Stirring significantly improves the harmlessness effect by enhancing mass transfer, uniform reaction, and preventing risks during the neutralization treatment, while reducing the treatment cost and safety risks. It is an essential key step in the wastewater treatment process.

[0063] S3, Evaporation and Concentration: Open the drain port of the mixing chamber 23, and at the same time start the heating tube installed at the bottom of the evaporation plate 28 for heating. The neutralized waste liquid flows on the evaporation plate 28 for evaporation.

[0064] The specific operation steps are as follows. At this time, by adjusting the evaporation rate of the waste liquid, the operator can rotate the angle adjuster 202. By rotating the angle adjuster 202, the pull plate 201 can be driven to adjust the height of the guide rod 29. By adjusting the guide rod 29, the height of the evaporation plate 28 can be adjusted. This solution can reduce unnecessary energy consumption through reasonable flow rate control because too fast a flow rate may lead to incomplete evaporation, while too slow a flow rate may increase energy consumption and time costs. By adjusting the evaporation angle and flow rate, the optimal evaporation conditions can be found to achieve energy conservation and consumption reduction.

[0065] S4, Condensation and Recovery: Drain the evaporated gas to the condensation chamber 13 through the air suction device 12 for condensation, and recover the condensed liquid.

[0066] S5, Tail Gas Treatment and Emission: The gas that has been condensed in the condensation chamber 13 is heated and decomposed by the thermal decomposition furnace 14 above the condensation chamber 13.

[0067] It should be noted that in this article, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the term "including", "comprising" or any other variant thereof is intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements not only includes those elements, but also includes other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. Without further limitation, an element defined by the statement "including a..." does not exclude the existence of additional identical elements in the process, method, article or device including the element.

[0068] Although embodiments of the present invention have been shown and described, those of ordinary skill in the art will appreciate that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A harmless treatment method for waste liquid in a training room, characterized in that, Including: S1, Filtering and impurity removal: Start the equipment on the operation console (11), pour the waste liquid to be processed into the waste liquid hopper (21). The waste liquid will remove impurities through the filtration in the separation chamber (22). The impurities retained in the separation chamber (22) will be conveyed to the collection and compression device in the solid waste chamber (31) under the pushing mechanism of the first pushing rod (24) for centralized treatment and compression. S2, Continuously monitor the pH value of the wastewater with an on-line pH meter and neutralize the wastewater. S3, Evaporation and concentration: Open the drain port of the mixing chamber (23), and at the same time start the heating pipes installed at the bottom of the evaporation plate (28) for heating. The neutralized waste liquid flows on the evaporation plate (28) for evaporation. S4, Condensation and recovery: Drain the gas evaporated from the evaporation plate (28) to the condensation chamber (13) through the air suction device (12) for condensation, and the condensed liquid is recovered. S5, Tail gas treatment and emission: The gas condensed in the condensation chamber (13) is heated and decomposed by the thermal decomposition furnace (14) above the condensation chamber (13).

2. A harmless treatment device for laboratory waste liquid, applicable to any one of the harmless treatment methods for laboratory waste liquid described in claim 1, characterized in that, Including an operation frame (1), on which an operation console (11) and a condensation chamber (13) are respectively installed. The operation console (11) is fixedly communicated with an air suction device (12). The side of the air suction device (12) away from the operation console (11) is fixedly communicated with the condensation chamber (13). A thermal decomposition furnace (14) is installed on the upper surface of the condensation chamber (13). It also includes a filtering and evaporation mechanism (2) and a compression and collection mechanism (3). The filtering and evaporation mechanism (2) is arranged in the operation console (11), and is used for the evaporation adjustment of the waste liquid. The compression and collection mechanism (3) is arranged on the outer surface of the operation console (11), and is used for the collection and compression of the waste liquid impurities.

3. The harmless treatment device for waste liquid in a training room according to claim 2, wherein: The filtering and evaporation mechanism (2) includes a waste liquid hopper (21), which is fixedly communicated with the upper surface of the operation console (11). The inner wall of the upper surface is fixedly connected with a separation chamber (22). A filter screen is fixedly connected to the bottom of the separation chamber (22). The separation chamber (22) is communicated with the waste liquid hopper (21). A first pushing rod (24) is rotatably connected in the separation chamber (22). A mixing chamber (23) is arranged below the separation chamber (22).

4. The harmless treatment device for waste liquid in a training room according to claim 3, characterized in that: A second pushing rod (25) is rotatably connected in the mixing chamber (23). One end of the first pushing rod (24) is fixedly connected with a first gear (26). One end of the second pushing rod (25) is fixedly connected with a second gear (27). The tooth surface of the first gear (26) meshes with the second gear (27). In the middle of the side of the first gear (26) away from the separation chamber (22), a servo drive motor is installed, and the drive shaft of the servo drive motor is fixedly connected to the middle of the first gear (26).

5. The harmless treatment device for waste liquid in a training room according to claim 4, wherein: An electric control valve is installed at the bottom of the mixing chamber (23). Evaporation plates (28) are symmetrically arranged below the mixing chamber (23). A sliding groove is opened on the operation console (11). One end of the evaporation plate (28) is rotatably connected in the sliding groove. Both sides of the other end of the evaporation plate (28) are rotatably connected with guide rods (29).

6. The harmless treatment device for laboratory waste liquid according to claim 5, characterized in that: The evaporation plate (28) is mirror - set in the middle of the operation table (11). The evaporation plate (28) is vertically arranged in the operation table (11). One end of the guide rod (29) far from the evaporation plate (28) is fixedly connected with a pull plate (201). A angle adjuster (202) is threadedly connected in the middle of the pull plate (201). The bottom of the angle adjuster (202) is rotatably connected to the upper surface of the operation table (11).

7. An innocuous treatment device for waste liquid in a training room according to claim 3, characterized in that: The compression and collection mechanism (3) includes a solid waste chamber (31). The solid waste chamber (31) is fixedly connected to the outer surface of the operation table (11). The solid waste chamber (31) is communicated with the separation chamber (22). A compression box (32) is installed at the bottom of the solid waste chamber (31). Filter holes are provided at the bottoms of both the solid waste chamber (31) and the compression box (32).

8. An innocuous treatment device for waste liquid in a training room according to claim 7, characterized in that: In the middle of the upper surface of the solid waste chamber (31), a regulating disc (33) is rotatably connected. A threaded push rod (34) is threadedly connected in the middle of the regulating disc (33). Limit grooves (35) are symmetrically provided on the threaded push rod (34). The middle of the upper surface of the solid waste chamber (31) is slidably connected in the limit grooves (35).

9. The harmless treatment device for waste liquid in a training room according to claim 8, wherein: A buffer spring (36) is sleeved on the outer surface of the threaded push rod (34). One end of the buffer spring (36) is fixedly connected to the inner wall of the solid waste chamber (31). The other end of the buffer spring (36) is fixedly connected to a compression block (37). The middle of the upper surface of the compression block (37) is fixedly connected to the threaded push rod (34).

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