Automatic wastewater treatment device for laboratory

Abstract

The invention discloses an automatic wastewater treatment device for a laboratory, and relates to the technical field of wastewater treatment, the automatic wastewater treatment device for the laboratory comprises a pouring pool, a water outlet formed in the pouring pool, and an opening and closing plate which is rotatably arranged at a port of the water outlet and has an open state; the siphon is fixedly arranged in the lower water port, an extension cylinder is sleeved on the siphon, and a lower filter plate which is propped against the lower water port is rotationally arranged at the lower end port of the extension cylinder. According to the automatic wastewater treatment device for the laboratory, the space between the bottom end of the movable block and the liquid level of the extension cylinder is used for containing discharged gas, poisonous gas is prevented from being directly discharged to the outside, secondary detection is conducted on the discharged gas through the gas outlet, and therefore the safety of discharged wastewater is further ensured. A limiting space is formed in the reagent box, large precipitates stay in the limiting space, at the moment, a structure similar to a filter element is formed in the limiting space through filling of the precipitates, the reagent is further filtered, and the problem that the precipitates float is solved.

Description

Technical Field

[0001] The invention relates to the technical field of wastewater treatment, in particular to an automated wastewater treatment device for a laboratory. Background Art

[0002] The automated wastewater treatment device for laboratories is an efficient wastewater treatment equipment that integrates multiple treatment technologies and realizes unattended operation through an intelligent control system. It is widely used in scientific research institutes, universities, medical institutions, testing institutions and other scenarios.

[0003] In conjunction with publication number CN118184068B, publication date 2024-10-11, a medical wastewater treatment process is disclosed, including a medical wastewater treatment system, a sludge treatment system, an odor treatment system and a disinfection and emission system. The medical wastewater treatment system includes a pretreatment stage, a biochemical treatment stage and a deep treatment stage. The medical wastewater is sequentially subjected to physical filtration and microbial degradation for solid-liquid separation, and is disinfected by electrocatalytic oxidation and an ultraviolet disinfection tank; the sludge generated during the medical wastewater treatment process is disinfected by adding inorganic flocculants and disinfectants.

[0004] However, in the prior art including the above-mentioned patent, wastewater is disinfected and precipitated by flocculants. The wastewater is first left to stand and wait for the precipitation to form before being filtered and discharged through a filter. During the discharge process, since laboratories often use different reagents for experiments, there are residues of other reagents in the sewer pipes. After the reagents are introduced, they may react and produce gases. If the gas is toxic, it will be directly discharged to the outside, affecting the life safety of the operators.

[0005] Even if the gas is non-toxic, the emission of the gas will produce bubbles that will surge toward the liquid surface. At this time, the force generated by the bursting of the bubbles and the upwelling of the bubbles will both create a driving force on the sediment, causing the sediment that would have naturally settled due to gravity and water suction to become suspended in the liquid, making it more difficult to salvage and collect the sediment. Summary of the invention

[0006] The purpose of the present invention is to provide an automated wastewater treatment device for a laboratory, so as to solve the above-mentioned problems.

[0007] In order to achieve the above-mentioned object, the present invention provides the following technical solutions: an automated wastewater treatment device for a laboratory, comprising a dumping tank and a drain port opened thereon, and an opening and closing plate rotatably arranged at the drain port and having an open state;

[0008] A siphon tube is fixedly arranged in the water outlet, an extension tube is sleeved on the siphon tube, and a lower filter plate abutting against the water outlet is rotatably arranged at the lower end of the extension tube;

[0009] A movable block slidably disposed on a port on the extension tube;

[0010] It also includes an upper filter plate and a folding tube arranged at the filter hole of the upper filter plate, and the folding tube has a folded state with a contracted inner diameter, and a sleeve for sleeve-connecting the movable block is fixedly arranged on the upper filter plate;

[0011] The upper filter plate and the lower filter plate enclose a limited space for limiting sediment;

[0012] Also included is a gas detector, which is used to detect the gas in the extension tube.

[0013] Preferably, a piston portion cooperating with the piston of the extension tube is fixedly provided on the movable block.

[0014] Preferably, a scraper is rotatably provided on the lower filter plate to cooperate with the upper filter plate.

[0015] Preferably, the folded tube comprises folded plates arranged in a circumferential array, and an arc-shaped portion is provided at the end of the folded plate facing the upper filter plate.

[0016] Preferably, the movable block has a high position and a low position in its movable travel, and a plurality of elastic clips for locking at the low position are fixedly provided on the movable block.

[0017] Preferably, a vertical plate for limiting the upper filter plate is provided on the extension tube to minimize the thickness of the upper filter plate;

[0018] A transmission block for guiding the elastic card to unlock is fixedly arranged on the upper end of the vertical plate.

[0019] Preferably, a groove for clamping the vertical plate is formed on the sleeve, and the transmission block is secured to the elastic clamp, so that the distance between the vertical plate and the groove increases and the clamping connection is disengaged.

[0020] Preferably, a baffle plate cooperating with the movable block is fixedly provided on the upper filter plate, and the baffle plate is lifted by the movable block under the high position to be located at a default height.

[0021] Preferably, it also includes a fixed frame rotatably arranged at the drain port, and a protrusion is fixedly arranged at the end of the opening and closing plate extending toward the movable block, and the protrusion is deflected by the push of the movable block.

[0022] Preferably, the movable block is slidably arranged in the center of the fixed frame along the vertical direction.

[0023] In the above technical solution, the present invention provides an automated wastewater treatment device for a laboratory, which has the following beneficial effects: the space between the bottom end of the movable block and the liquid surface of the extension tube is used to accommodate the exhaust gas, to prevent the toxic gas from being directly discharged to the outside, and to perform secondary detection of the exhaust gas through the gas outlet, thereby further ensuring the safety of the discharged wastewater. Larger precipitates are allowed to stay in the limited space, and at this time, the limited space is filled with precipitates to form a structure similar to a "filter element", which further filters the reagents and reduces the problem of precipitate floating. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in the present invention. For ordinary technicians in this field, other drawings can also be obtained based on these drawings.

[0025] Figure 1 An overall three-dimensional schematic diagram provided for an embodiment of the present invention;

[0026] Figure 2 A schematic diagram of the structure of the lower opening and closing plate and the lower filter plate of the dumping tank provided in an embodiment of the present invention;

[0027] Figure 3 A schematic diagram of the cross-sectional structure of the lower filter plate and the upper filter plate provided in an embodiment of the present invention;

[0028] Figure 4 A schematic diagram of the structure of the movable block, the upper filter plate and the lower filter plate provided in an embodiment of the present invention;

[0029] Figure 5 A schematic diagram of the structural position of the opening and closing panels and the movable panels provided in an embodiment of the present invention;

[0030] Figure 6 The embodiment of the present invention provides Figure 5 A schematic diagram of the enlarged structure in the middle;

[0031] Figure 7 A schematic diagram of a folding tube structure provided by an embodiment of the present invention;

[0032] Figure 8 A schematic diagram of the lower structure of the movable block provided by an embodiment of the present invention;

[0033] Fig. 9 A schematic diagram of the structure of the foldable tube in a folded state provided by an embodiment of the present invention;

[0034] Fig.10 A schematic diagram of a process of restoring an active block from a low position to a high position provided by an embodiment of the present invention;

[0035] Fig.11 A schematic diagram of the lower plate structure provided by an embodiment of the present invention;

[0036] Fig.12 Schematic diagram of the two-state structure of the folding tube provided in an embodiment of the present invention.

[0037] Description of reference numerals:

[0038] 1. Dumping tank; 11. Drain outlet; 2. Opening and closing plate; 21. Fixed frame; 22. Torsion spring; 23. Bump; 3. Gas detector; 4. Siphon; 5. Lower filter plate; 51. Extension tube; 52. Clamping part; 53. First spring; 54. Scraper; 541. Boss; 55. Vertical plate; 56. Transmission block; 57. Second spring; 58. Rubber ball; 6. Upper filter plate; 61. Folding tube; 611. Folding plate; 612. Notch; 613. Arc-shaped part; 614. Arched part; 615. Elastic membrane; 62. Lower plate; 621. Bump; 63. Sleeve; 64. Baffle; 65. Groove; 7. Movable block; 71. Air outlet; 72. Piston part; 74. Elastic clamp. DETAILED DESCRIPTION

[0039] In order to enable those skilled in the art to better understand the technical solution of the present invention, the present invention will be further described in detail below with reference to the accompanying drawings.

[0040] like Figure 1-12 As shown, an automated wastewater treatment device for a laboratory comprises a dumping pool 1 and a drain port 11 opened thereon, and an opening and closing plate 2 rotatably arranged at the port of the drain port 11 and having an open state;

[0041] like Figure 2 and Figure 3 As shown, a siphon tube 4 is fixedly arranged in the water outlet 11, and an extension tube 51 is sleeved on the siphon tube 4, and a lower filter plate 5 is rotatably arranged at the lower end of the extension tube 51 to abut against the water outlet 11;

[0042] A movable block 7 slidably disposed on an upper end of the extension tube 51;

[0043] It also includes an upper filter plate 6 and a folding tube 61 disposed at the filter hole of the upper filter plate 6, and the folding tube 61 has a folded state with a contracted inner diameter, and a sleeve 63 for sleeve-connecting the movable block 7 is fixedly disposed on the upper filter plate 6;

[0044] The upper filter plate 6 and the lower filter plate 5 enclose a limited space (such as Fig. 9 and Fig.10 );

[0045] It also includes a gas detector 3, which is used to detect the gas in the extension tube 51.

[0046] Specifically, the movable block 7 is used to block the extension tube 51, and an outlet 71 connected to the input port of the gas detector 3 is provided on the movable block 7. In the default state, the input port valve of the gas detector 3 is closed to make the outlet 71 in a blocked state. The valve is opened when gas detection is required, and the siphon tube 4 is connected to the sewer pipe. The above-mentioned electronic components are all technical common sense known to technicians in this field and will not be elaborated here.

[0047] Furthermore, the upper filter plate 6 includes a lower plate 62, and the lower filter plate 5 is detachably nested in the drain port 11 (such as Figure 2 As shown), the filter holes of the upper filter plate 6 are larger than the filter holes of the lower filter plate 5, and a baffle 64 extending from the upper end of the movable block 7 is fixedly provided on the sleeve 63, and the highest point of the baffle 64 is located above the opening and closing plate 2 (as shown in FIG. Figure 5 As shown), the baffle plate 64 cooperates with the movable block 7, and the baffle plate 64 is located at a default height with the support of the movable block 7.

[0048] like Figure 8 As shown, after the experimental reagent is poured into the pouring pool 1, the reagent will enter the drain port 11, and enter the extension tube 51 after passing through the upper filter plate 6 and the lower filter plate 5 in sequence. When the liquid level of the reagent is higher than the port of the siphon tube 4, the original air in the extension tube 51 is discharged through the siphon tube 4, and a continuous liquid column is formed in the extension tube 51, so that the reagent automatically enters the siphon tube 4 and is discharged under the action of the siphon effect. When the sundries in the drain pipe react with the poured reagent to produce gas, or when the reagent further releases air during the flow process, the gas will be discharged into the extension tube 51 along the siphon tube 4, and automatically float to the position of the extension tube 51 facing the movable block 7 under the action of gravity, that is, the space between the bottom end of the movable block 7 and the liquid level of the extension tube 51 is used to accommodate the exhaust gas, so as to prevent the toxic gas from being directly discharged to the outside, and the exhaust gas is secondary detected through the gas outlet 71, thereby further ensuring the safety of the discharged wastewater.

[0049] When there is a large amount of precipitation (formed by flocculant precipitation) in the poured reagent, the opening and closing plate 2 is first closed, so that most of the precipitation is located at the bottom of the reagent under the action of gravity, and then the opening and closing plate 2 is deflected. After the opening and closing plate 2 is opened, the reagent enters the drain port 11. At this time, since the opening and closing plates 2 are arranged in a circular array at the port of the drain port 11, multiple opening and closing plates 2 are deflected in the same direction to form a downward oblique guiding path, so that the reagent forms a spiral vortex under the guidance, thereby increasing the flow rate of the reagent.

[0050] Since the filter holes of the upper filter plate 6 are relatively large, the precipitate is intercepted by the lower filter plate 5 after entering the limited space. Under the combined effect of the siphon effect and the eddy current, the reagent is sucked with greater force at the lower filter plate 5, and the precipitate is adsorbed above the lower filter plate 5 (such as Figure 8 and Fig. 9), and then the operator manually presses the baffle 64 to move the baffle 64 downward from the default height, and the baffle 64 drives the sleeve 63 and the upper filter plate 6 to move downward, so that the lower plate 62 squeezes the precipitate, and the folding tube 61 is folded by the upward reaction force and the downward squeezing force of the upper filter plate 6. The inner diameter of the folding tube 61 is reduced, making it difficult for larger precipitates to overflow upward through the folding tube 61. At this time, the filling of the precipitate in the limited space forms a structure similar to a "filter element", which further filters the reagent and can reduce the problem of precipitate floating.

[0051] In the above technology, the space between the bottom end of the movable block 7 and the liquid surface of the extension tube 51 is used to accommodate the exhaust gas, so as to prevent the toxic gas from being directly discharged to the outside, and the exhaust gas is secondary detected through the gas outlet 71, so as to further ensure the safety of the discharged wastewater. The larger sediment stays in the limited space, and at this time, the limited space is filled with sediment to form a structure similar to a "filter element", which further filters the reagent and reduces the problem of sediment floating.

[0052] As an embodiment further provided by the present invention, a piston portion 72 which cooperates with the piston of the extension tube 51 is fixedly provided on the movable block 7 .

[0053] Specifically, since the end face of the siphon tube 4 is higher than the lower end of the extension tube 51, the siphon effect can no longer be generated after the reagent is discharged to a level lower than the siphon tube 4. Clean water is then poured in to drain the residual reagent liquid in the drain port 11, and the remaining clean water is used to form a water film to block the gas overflowing from the siphon tube 4. However, too much residual clean water will cause erosion to the upper filter plate 6 and the lower filter plate 5. At this time, the movable block 7 is pulled upward (the inlet valve of the gas detector 3 is closed to block the gas outlet 71), so that the piston part 72 moves upward and sucks the extension tube 51, so that the liquid in the drain port 11 enters the extension tube 51 and is higher than the siphon tube 4 again, resulting in a siphon effect. The clean water is discharged by repeatedly pumping the movable block 7 until the liquid level of the residual clean water is located at the lower end face of the lower filter plate 5 (such as Figure 8 The residual water volume at this time can form a water film while minimizing the soaking degree of the lower filter plate 5.

[0054] As another embodiment provided by the present invention, a scraper 54 is rotatably provided on the lower filter plate 5 and is engaged with the upper filter plate 6 .

[0055] Specifically, Figure 4As shown, the scraper 54 is fixedly arranged on the extension tube 51, and the top of the scraper 54 is used to support the lower plate 62, and the sleeve 63, the upper filter plate 6, and the lower plate 62 are driven to move downward at the same time while pressing the baffle 64. The lower plate 62 is supported by the scraper 54 and stops, and the folded tube 61 is squeezed and deformed by the upper filter plate 6. The scraper 54 can be driven by a motor, or the scraper 54 can be set to a structure similar to an impeller, and the scraper 54 can be driven to rotate by the vortex generated when the reagent is put into water, or the common technical knowledge known to those skilled in the art can be used.

[0056] Furthermore, a protrusion 541 is fixedly provided on the scraper 54. The scraper 54 mixes the sediment filled in the limited space during its rotation. The volume of the protrusion 541 is relatively small, so as to avoid excessive stirring force on the sediment and causing the sediment to break. In the process of pouring the reagent, the sediment filled in the limited space is equivalent to a "filter element", which makes the reagent preferentially contact the top of the reagent to intercept more impurities when passing through the "filter element". The impurities stay in the gap of the sediment, further reducing the top gap of the "filter element", which is equivalent to reducing the top filter hole of the "filter element", so that fine impurities are intercepted again, improving the removal efficiency of the impurities in the reagent, and making the original sediment equivalent to the nucleus when the reagent passes through the already formed sediment, which will spontaneously promote the formation of the sediment.

[0057] However, this results in the impurities in the "filter element" being more at the top and less at the bottom. The top of the "filter element" may have been blocked by too many impurities, while the bottom is still not saturated. This is also a common problem in many prior art filter elements that use a sponge-like structure or a multi-layer filter element. The scraper 54 drives the convex column 541 to rotate and stir the sediment, which can change the distribution of the sediment in the limited space, thereby adjusting the impurities in each gap so that the impurities are evenly distributed in the gap, which is equivalent to adjusting the structure in the "filter element" to make it more uniform.

[0058] As another embodiment provided by the present invention, the folded tube 61 includes folded plates 611 arranged in a circumferential array, and the end of the folded plate 611 facing the upper filter plate 6 is provided with an arc portion 613 (such as Figure 3 and Figure 7 shown).

[0059] Specifically, a notch 612 is provided on the folding plate 611. After the two ends of the folding tube 61 are squeezed, the folding plate 611 will spontaneously fold along the notch 612, so that the middle parts of the folding tube 61 are brought closer together, the diameter is reduced, and the precipitation in the limited space is restrained. An elastic membrane 615 is provided between the two folding plates 611. The elastic membrane 615 provides a movable margin for the folding of the folding plate 611 by its own deformation (such as Figure 7 and Fig.12After folding, a small arc-shaped space is formed between the arc-shaped portion 613 and the upper filter plate 6. The connection part of the arc-shaped portion 613 and the folded plate 611 is provided with an arched portion 614. The arched portion 614 is close to the end surface of the upper filter plate 6 in the folded state, and under the action of gravity and siphon effect, the liquid flow has a tendency to flow downward. At this time, there is a downward adsorption force in the folded tube 61, and the arc-shaped space is equivalent to a suction cup, which is used to attract and limit the sediment intercepted on the upper filter plate 6.

[0060] As another embodiment provided by the present invention, the movable block 7 has a high position and a low position in its movable stroke, and a plurality of elastic clips 74 for locking at the low position are fixedly provided on the movable block 7.

[0061] Specifically, the upper end of the extension tube 51 is provided with a first spring 53, and the push force of the first spring 53 makes the movable block 7 to be in a high position, and because the movable block 7 and the baffle 64 form a blocking fit, the movable block 7 lifts the baffle 64 to a default height when it is in a high position. The upper end of the extension tube 51 is fixedly provided with a clamping portion 52, and by pressing down the movable block 7, the baffle 64 remains in place and is not affected by the downward movement of the movable block 7, and the tail end of the elastic clamp 74 is driven by the movable block 7 to move down to the bottom of the clamping portion 52, and then the elastic clamp 74 is clamped with the clamping portion 52 by releasing the hand, so that the movable block 7 is locked in a low position, so that the top end of the movable block 7 blocks the end of the extension tube 51 and forms a seal.

[0062] As another embodiment provided by the present invention, a vertical plate 55 for limiting the upper filter plate 6 is provided on the extension tube 51 to minimize the thickness of the upper filter plate 6;

[0063] A transmission block 56 for guiding the elastic clamp 74 to unlock is fixedly provided on the upper end of the vertical plate 55 .

[0064] Specifically, the sleeve 63 is provided with a groove 65 for clamping the vertical plate 55, and the transmission block 56 is secured with the elastic clamp 74, and the distance between the vertical plate 55 and the groove 65 is increased and the clamping is disengaged. The vertical plates 55 are arranged in a circumferential array on the outer wall of the extension tube 51 (such as Figure 4 As shown), the transmission block 56 extends toward the elastic clamp 74, a rubber ball 58 corresponding to the groove 65 is fixedly provided on the vertical plate 55, and a second spring 57 is provided on the vertical plate 55. In the initial state, the movable block 7 and the baffle 64 are both located at a high position (the baffle 64 is located at a default height), and then the movable block 7 is pressed down, so that the top end of the movable block 7 blocks the port of the extension tube 51 and forms a seal (as shown in FIG. Figure 8 As shown). Then, the baffle plate 64 is pressed downwards, and the sleeve 63 is driven by Figure 8 Move down to Fig. 9, the distance between the upper filter plate 6 and the lower plate 62 is shortened, and the folding tube 61 is folded, that is, the overall thickness of the upper filter plate 6 (the thickness between the upper end surface of the upper filter plate 6 and the lower end surface of the lower plate 62) is minimized, and the groove 65 moves down to correspond to the rubber ball 58, and the elastic action of the second spring 57 makes the rubber ball 58 enter the groove 65, and at the same time the elastic clamp 74 is against the transmission block 56.

[0065] Then, the movable block 7 is pressed downward, and the movable block 7 drives the elastic clamp 74 to move downward first. After the elastic clamp 74 is pressed by the transmission block 56, the following occurs: Fig.10 The deflection shown in the figure causes the tail end of the elastic clamp 74 to be offset from the clamping portion 52. At the same time, the transmission block 56 is pressed against the outer wall of the extension tube 51 by the force of the elastic clamp 74, and the second spring 57 contracts, increasing the distance between the vertical plate 55 and the groove 65, while reducing the contact area between the rubber ball 58 and the groove 65, so that the rubber ball 58 is separated from the groove 65 and no longer clamped with each other. At this time, let go, and the movable block 7 will be in a high position under the push of the first spring 53, and the baffle 64 and the sleeve 63 will be lifted to the highest point, that is, reaching the position shown in FIG. Fig.10 The default height shown by the dotted line drives the piston part 72 to move upward and enlarge the volume in the extension tube 51, thereby forming a partial suction effect on the water outlet 11. At this time, the upper filter plate 6 returns to the initial state, and the lower filter plate 5 can be pulled out to clean the sediment in the limited space.

[0066] As another embodiment provided by the present invention, it also includes a fixed frame 21 rotatably arranged at the end of the drain port 11, and a protrusion 23 is fixedly arranged at the end of the opening and closing plate 2 extending toward the movable block 7, and the protrusion 23 is deflected by the push of the movable block 7.

[0067] Specifically, a torsion spring 22 (such as Figure 6 As shown), the torsion spring 22 keeps the opening and closing plate 2 horizontal and close to the fixed frame 21 through its own elastic force, and the top edge of the movable block 7 has a protruding eaves-like portion, and the elastic clamp 74 is fixedly arranged on the eaves-like portion. When the movable block 7 is pressed down from the high position in the default state, the eaves-like portion will press the protrusion 23 and drive the opening and closing plate 2 to deflect. Multiple opening and closing plates 2 are deflected to allow the reagent to form a spiral vortex, thereby further improving the discharge rate of the reagent.

[0068] As another embodiment provided by the present invention, the movable block 7 is slidably disposed in the center of the fixed frame 21 along the vertical direction.

[0069] Specifically, the spiral vortex formed by the discharge drives the opening and closing plate 2 and the fixed frame 21 to rotate, thereby driving the movable block 7 to rotate through the rotation of the opening and closing plate 2. Since the movable block 7 is slidably arranged on the extension tube 51, and the lower plate 62 is provided with a protruding block 621 (such as Fig.11 and Figure 8As shown in the figure, after the baffle 64 is pressed down, the gap of the raised block 621 on the lower plate 62 engages the upper end of the scraper 54, and the extension tube 51 and the scraper 54 rotate passively, and a large energy loss is generated in the process of power transmission, so that the rotational force of the eddy current on the opening and closing plate 2 is not completely transmitted to the scraper 54, that is, the scraper 54 rotates at a slow speed, which can slowly and evenly distribute the sediment in the lower filter plate 5.

[0070] Working principle: When there is a large amount of sediment (formed by flocculant precipitation) in the poured reagent, the opening and closing plate 2 is first closed so that most of the sediment is located at the bottom of the reagent under the action of gravity. Then, when the movable block 7 is pressed down from the high position in the default state, the eaves will press the protrusion 23 and drive the opening and closing plate 2 to deflect. Multiple opening and closing plates 2 are deflected to allow the reagent to form a spiral vortex.

[0071] Furthermore, by pressing down the movable block 7, the tail end of the elastic clamp 74 is driven to move downward to below the clamping portion 52, and then the elastic clamp 74 is released to engage with the clamping portion 52, so that the movable block 7 is locked in a low position, and the top end of the movable block 7 blocks the end of the extension tube 51 and forms a seal.

[0072] The reagent will enter the drain port 11, and pass through the upper filter plate 6 and the lower filter plate 5 in sequence before entering the extension tube 51. When the liquid level of the reagent is higher than the port of the siphon tube 4, the original air in the extension tube 51 is discharged through the siphon tube 4, and a continuous liquid column is formed in the extension tube 51, so that the reagent automatically enters the siphon tube 4 and is discharged due to the siphon effect. When the debris in the drain pipe reacts with the poured reagent to produce gas, or when the reagent further releases air during the flow process, the gas will be discharged into the extension tube 51 along the siphon tube 4, and automatically float to the position of the extension tube 51 facing the movable block 7 under the action of gravity, that is, the space between the bottom end of the movable block 7 and the liquid level of the extension tube 51 is used to accommodate the exhaust gas, to prevent the toxic gas from being directly discharged to the outside, and to perform secondary detection on the exhaust gas through the outlet 71, thereby further ensuring the safety of the discharged wastewater.

[0073] Since the filter holes of the upper filter plate 6 are relatively large, the precipitate is intercepted by the lower filter plate 5 after entering the limited space. Under the combined effect of the siphon effect and the eddy current, the reagent is sucked with greater force at the lower filter plate 5, and the precipitate is adsorbed above the lower filter plate 5 (such as Figure 8 and Fig. 9 ).

[0074] Then, by pressing the baffle plate 64, the sleeve 63, the upper filter plate 6, and the lower plate 62 are driven to move downward at the same time, the folding tube 61 is folded, and the groove 65 is moved downward to correspond to the rubber ball 58. The elastic action of the second spring 57 makes the rubber ball 58 enter the groove 65, and the elastic clamp 74 abuts against the transmission block 56. The lower plate 62 is supported by the scraper 54 and stops. At this time, the folding tube 61 is squeezed and deformed by the upper filter plate 6, making it difficult for larger sediments to overflow upward through the folding tube 61. At this time, the limited space is filled with sediments to form a structure similar to a "filter element".

[0075] The spiral vortex formed by the discharge drives the opening and closing plate 2 and the fixed frame 21 to rotate, thereby driving the movable block 7 to rotate through the rotation of the opening and closing plate 2. Since the movable block 7 is slidably arranged on the extension tube 51, and the lower plate 62 is provided with a protruding block 621 (such as Fig.11 and Figure 8 As shown in the figure, after the baffle 64 is pressed down, the gap formed by the raised block 621 on the lower plate 62 clamps the upper end of the scraper 54, and the extension tube 51 and the scraper 54 rotate passively, and a large energy loss is generated in the process of power transmission, so that the rotational force of the eddy current on the opening and closing plate 2 is not completely transmitted to the scraper 54, that is, the scraper 54 rotates at a slow speed, which can slowly and evenly distribute the sediment in the lower filter plate 5.

[0076] Then, the movable block 7 is pressed downward, and the movable block 7 drives the elastic clamp 74 to move downward first. After the elastic clamp 74 is pressed by the transmission block 56, the following occurs: Fig.10 The deflection shown in the figure causes the tail end of the elastic clamp 74 to be offset from the clamping portion 52. At the same time, the transmission block 56 is pressed against the outer wall of the extension tube 51 by the force of the elastic clamp 74, and the second spring 57 contracts, increasing the distance between the vertical plate 55 and the groove 65, while reducing the contact area between the rubber ball 58 and the groove 65, so that the rubber ball 58 is separated from the groove 65 and no longer clamped with each other. At this time, let go, and the movable block 7 will be at a high position under the push of the first spring 53, and drive the baffle 64 and the sleeve 63 to the highest point, that is, reaching the position shown in FIG. Fig.10 The default height shown by the dotted line in the middle drives the piston portion 72 to move upward and increases the volume in the extension tube 51 , thereby forming a partial suction effect on the drain port 11 .

[0077] The above description is only by way of illustration of certain exemplary embodiments of the present invention. It is undoubted that those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. An automated wastewater treatment device for a laboratory, comprising a dumping tank (1) and a drain port (11) provided thereon, characterized in that: It comprises an opening and closing plate (2) which is rotatably arranged at the port of the water outlet (11) and has an open state; A siphon tube (4) is fixedly arranged in the water outlet (11), an extension tube (51) is sleeved on the siphon tube (4), and a lower filter plate (5) is rotatably arranged at the lower end of the extension tube (51) to abut against the water outlet (11); A movable block (7) slidably disposed on an upper end of the extension tube (51); It also includes an upper filter plate (6) and a folding tube (61) disposed at a filter hole of the upper filter plate (6), wherein the folding tube (61) has a folded state with a contracted inner diameter, and a sleeve (63) for sleeve-connecting the movable block (7) is fixedly disposed on the upper filter plate (6); The upper filter plate (6) and the lower filter plate (5) enclose a limited space for limiting sediments; It also includes a gas detector (3) for detecting the gas in the extension tube (51).

2. The automated wastewater treatment device for a laboratory according to claim 1, characterized in that: The movable block (7) is fixedly provided with a piston portion (72) which cooperates with the piston of the extension tube (51).

3. The automated wastewater treatment device for a laboratory according to claim 1, characterized in that: The lower filter plate (5) is rotatably provided with a scraper (54) which cooperates with the upper filter plate (6) for blocking and disassembly.

4. The automated wastewater treatment device for a laboratory according to claim 1, characterized in that: The folded tube (61) comprises folded plates (611) arranged in a circumferential array, and an arc-shaped portion (613) is provided at the end of the folded plate (611) facing the upper filter plate (6).

5. The automated wastewater treatment device for a laboratory according to claim 1, characterized in that: The movable block (7) has a high position and a low position in its movable travel, and a plurality of elastic clips (74) for locking at the low position are fixedly arranged on the movable block (7).

6. The automated wastewater treatment device for a laboratory according to claim 5, characterized in that: The extension tube (51) is provided with a vertical plate (55) for limiting the position of the upper filter plate (6) so as to minimize the thickness of the upper filter plate (6); A transmission block (56) for guiding the elastic clamp (74) to unlock is fixedly arranged on the upper end of the vertical plate (55).

7. The automated wastewater treatment device for a laboratory according to claim 6, characterized in that: The sleeve (63) is provided with a groove (65) for clamping the vertical plate (55), and the transmission block (56) is secured with the elastic clamp (74), so that the distance between the vertical plate (55) and the groove (65) increases and the clamping connection is disengaged.

8. The automated wastewater treatment device for a laboratory according to claim 1, characterized in that: A baffle (64) is fixedly arranged on the upper filter plate (6) and cooperates with the movable block (7) for blocking and disassembly, and the baffle (64) is lifted by the movable block (7) at the high position to be located at a default height.

9. The automated wastewater treatment device for a laboratory according to claim 1, characterized in that: It also includes a fixed frame (21) rotatably arranged at the port of the water outlet (11), and a protrusion (23) is fixedly arranged at the end of the opening and closing plate (2) extending toward the movable block (7), and the protrusion (23) is deflected by the push of the movable block (7).

10. The automated laboratory wastewater treatment device according to claim 9, characterized in that: The movable block (7) is slidably arranged in the center of the fixed frame (21) along the vertical direction.

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