Integrated industrial wastewater anaerobic toxicity experiment system

Abstract

The application discloses an integrated industrial wastewater anaerobic toxicity experiment system, which comprises an integrated device, a feeding system and a gas collecting system; a conical flask, a flask body shaking mechanism and a controller for controlling the feeding system, the gas collecting system and the flask body shaking mechanism are arranged in the integrated device; the feeding system and the gas collecting system are communicated with the conical flask; a feeding mechanism automatically pumps reactants into the conical flask in proportion for reaction; gas generated in the conical flask is automatically recorded in the gas collecting system; and the flask body shaking mechanism drives the conical flask to shake before reading the gas collecting system; the application solves the problems of inaccurate experimental data and low experimental efficiency caused by manual intervention in wastewater anaerobic toxicity experiments, significantly improves the automation degree of experimental instruments and reduces the labor intensity of experimental personnel.

Description

Technical Field

[0001] This invention relates to the field of anaerobic toxicity testing technology, specifically to an integrated industrial wastewater anaerobic toxicity testing system. Background Technology

[0002] Industrial wastewater is generally characterized by large volume, high toxicity, high concentration, and difficulty in treatment. Anaerobic biological processes, as a key technology in wastewater treatment plants, have been widely applied to the degradation of industrial wastewater. However, anaerobic microorganisms are susceptible to the impact of high concentrations of toxic substances in wastewater, leading to unstable treatment results and even system failure. Therefore, accurately assessing the toxicity of wastewater before it enters the wastewater treatment plant is crucial to solving this problem.

[0003] Current anaerobic toxicity testing methods primarily rely on indirectly assessing wastewater toxicity through methanogenesis rates. This method infers wastewater toxicity by measuring the rate at which microorganisms in an anaerobic environment decompose organic matter to produce methane. However, this method is cumbersome, requiring continuous manual data recording, and is often affected by environmental factors (such as temperature and air pressure), resulting in poor accuracy and stability of the experimental results. Furthermore, because the methanogenesis rate method takes a long time to produce results, multiple researchers are required to shake reaction flasks and read gas values ​​for extended periods, significantly wasting human resources. Additionally, experimental equipment needs to be assembled before the experiment and cleaned and stored afterward, making the scattered tools extremely inconvenient. Currently, there is no integrated automated experimental system available on the market for anaerobic toxicity testing of wastewater.

[0004] To address these issues, this study developed an integrated anaerobic toxicity testing system for industrial wastewater. This system can rapidly and accurately assess the anaerobic biotoxicity of wastewater before it enters a wastewater treatment plant, thus providing a scientific basis for deciding whether wastewater can be admitted. Through automated integrated design, this system significantly improves detection efficiency, reduces manual intervention, and ensures the accuracy and stability of the results, providing wastewater treatment plants with a novel tool for wastewater toxicity assessment. Summary of the Invention

[0005] The purpose of this invention is to provide an integrated anaerobic toxicity testing system for industrial wastewater, which aims to solve the aforementioned problems.

[0006] To achieve the above objectives, the present invention provides the following technical solution: an integrated industrial wastewater anaerobic toxicity testing system, comprising an integrated device, a feeding system, and a gas collection system; the feeding system is located on the side of the integrated device, the gas collection system is snapped into the integrated device, and the integrated device is equipped with a conical flask, a flask shaking mechanism, and a controller for controlling the feeding system, the gas collection system, and the flask shaking mechanism.

[0007] The feeding system and the gas collection system are connected to the conical flask respectively. The feeding system automatically pumps the reactants into the conical flask in proportion for reaction. The gas generated in the conical flask enters the gas collection system for automatic reading and recording. The bottle shaking mechanism drives the conical flask to shake evenly before the gas collection system reads the data.

[0008] This application integrates various experimental apparatuses into multiple subsystems that perform different functions, and integrates them into a single unit through an integrated device. A modular design allows multiple integrated systems to be electrically connected to each other, forming different parallel and control groups required for the experiment. This achieves unified circuit control for each group. A bottle-shaking mechanism synchronously simulates the shaking operation of a human hand in a conical flask, and a gas collection system automatically reads the data, automating the experimental process. This eliminates the need for personnel to remain on-site for extended periods, effectively reducing physical labor. Furthermore, compared to manual reading and shaking, the synchronous control of this application results in more accurate data.

[0009] Furthermore, the integrated device includes a single main unit and an array of modular units; both the main unit and the modular units include a base, a water bath, a support plate, a sliding plate, and a top plate. The water bath is inserted into the upper part of the base, the lower part of the support plate is welded to the base, the upper part of the support plate is welded to the top plate, and the side of the sliding plate is slidably connected to the inner wall of the base with damping. A control panel is provided at the front of the main unit, and the main unit and the modular units are inserted into each other.

[0010] Furthermore, a plate is provided at the front of the base, a slot is provided at the rear of the base, and an electrical control board is provided inside the base. The array modules are interconnected and electrically connected. The feeding system includes array clamps, gas cylinders, liquid cylinders, sludge cylinders, fluid pumps, gas pumps, feed pipes, and two-position three-way solenoid valves. The rear end of the clamps is fixedly connected to the outside of the support plate. The rear ends of the fluid pumps, gas pumps, and two-position three-way solenoid valves are all inserted into the outside of the support plate. The gas cylinders, liquid cylinders, and sludge cylinders are all snapped into the clamps. The gas cylinders and gas pumps are connected through the feed pipes. The sludge cylinders and liquid cylinders are connected through the feed pipes and extend to the fluid pumps. The fluid pumps and gas pumps are connected through the two-position three-way solenoid valves. The two-position three-way solenoid valves are connected to the side of the conical flasks through the feed pipes. A one-way valve is provided at the feed inlet of the conical flasks.

[0011] Furthermore, the gas collection system includes an outlet pipe, a piston chamber, a piston head, a connecting rod, and a measurement and return assembly; one end of the outlet pipe is connected to a one-way valve on the side of the conical flask, and the other end of the outlet pipe is connected to a one-way valve on the lower side of the piston chamber; the lower end of the piston chamber is inserted into the upper end of the sliding plate; the piston head is slidably connected to the inside of the piston chamber; one end of the connecting rod is fixedly connected to the rear end of the piston head; and the other end of the connecting rod is inserted into the measurement and return assembly.

[0012] The set measurement and return component enables the gas collection system to be filled with gas during unmanned experiments. After recording, the component can automatically control the gas discharge, so that no operator assistance is required during long-term experiments.

[0013] Furthermore, the measurement return assembly includes an electric push rod, a laser rangefinder, and a target plate. The rear end of the electric push rod is inserted into the upper plate, and the output end of the electric push rod extends downward through the upper plate. The side of the laser rangefinder is inserted into the side of the connecting rod away from the piston head. The side of the target plate is engaged with the upper side of the piston chamber. A one-way electromagnetic exhaust is provided at the lower end of the piston chamber away from the exhaust pipe. The piston chamber is connected to the methane treatment mechanism through the one-way electromagnetic exhaust.

[0014] Furthermore, the bottle shaking mechanism includes a clamping plate, a ball joint, a joint sleeve, a worm gear, a telescopic outer rod, a telescopic inner rod, an arc-shaped connecting plate, and a modular drive assembly; the lower end of the clamping plate is engaged with the upper end of the conical bottle, the upper end of the clamping plate is welded and fixed to the lower end of the ball joint, the ball joint is movably connected to the inner wall of the joint sleeve, the upper end of the joint sleeve is fixedly connected to the lower end of the telescopic outer rod, the inner wall of the telescopic outer rod and the outer wall of the telescopic inner rod have a limited sliding connection, the upper end of the telescopic inner rod is fixedly connected to the lower end of the upper plate, the inner wall of the worm gear is threadedly connected to the outer wall of the telescopic outer rod, the upper end of the arc-shaped connecting plate is inserted into the lower end of the upper plate, and the lower end of the arc-shaped connecting plate is rotatably connected to the upper end of the worm gear.

[0015] Furthermore, the outer wall of the telescopic outer rod is threaded, with the lower part of the threaded section being a flat thread. A push rod is engaged at the lower end of the worm wheel, and a ball is movably mounted on the end of the push rod away from the worm wheel. An electromagnetic trigger for triggering gas readings is provided at the lower end of the upper plate. The modular drive assembly includes a motor and a worm. The motor is bolted to the support plate of the main unit, and the motor output end is plugged into the worm. The worm is rotatably connected to the support plate, and multiple worms are plugged into each other. The worm meshes with the worm wheel.

[0016] The bottle-shaking mechanism eliminates the need for manual shaking of the conical flask during experiments. A push rod rotates, pushing the plate to shake, which in turn shakes the conical flask, simulating manual shaking rather than rotating it. This avoids wire tangling and effectively improves the shaking effect. Furthermore, the interlocking worm gears allow multiple modular units to perform shaking and reading operations synchronously after connecting to the main unit, eliminating the need for multiple motors.

[0017] Compared with existing technologies, it has the following beneficial effects:

[0018] This application integrates various instruments used in wastewater anaerobic toxicity experiments into multiple subsystems with different functions. These subsystems are then integrated into a single unit through an integrated device. A modular design allows for the interconnection of multiple integrated systems via electrical control, enabling the formation of parallel and control groups for the experiment. Each group enjoys unified circuit control. A bottle-shaking mechanism synchronously simulates the shaking operation of a conical flask by hand, and a gas collection system automatically collects readings. This automates the experimental process, eliminating the need for personnel to remain on-site for extended periods. It effectively reduces physical labor and human intervention during the experiment, minimizing the impact of the external environment. Synchronous control ensures more accurate and stable experimental data. Attached Figure Description

[0019] To more clearly illustrate the technical solutions in the embodiments of the present invention, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only preferred embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0020] Figure 1 This is a schematic diagram of an integrated anaerobic toxicity testing system for industrial wastewater according to the present invention.

[0021] Figure 2 This is a schematic diagram of the feeding system of an integrated industrial wastewater anaerobic toxicity testing system according to the present invention;

[0022] Figure 3 This is a schematic diagram of the gas collection system of an integrated industrial wastewater anaerobic toxicity testing system according to the present invention;

[0023] Figure 4 This is a cross-sectional view of the gas collection system of an integrated industrial wastewater anaerobic toxicity testing system according to the present invention.

[0024] Figure 5 This is a schematic diagram of the bottle shaking mechanism of an integrated industrial wastewater anaerobic toxicity testing system according to the present invention.

[0025] Figure 6 This is a schematic diagram of the worm gear structure of an integrated industrial wastewater anaerobic toxicity testing system according to the present invention;

[0026] Figure 7 This is a schematic diagram of the main unit connection relationship of an integrated industrial wastewater anaerobic toxicity testing system according to the present invention;

[0027] Figure 8 This is a schematic diagram of the electromagnetic triggering of an integrated industrial wastewater anaerobic toxicity testing system according to the present invention.

[0028] In the diagram: 1-Integrated device; 11-Main unit; 111-Control panel; 12-Module machine; 13-Base; 131-Insert plate; 132-Slot; 133-Support; 134-Cassette wheel; 14-Water bath; 15-Support plate; 16-Sliding plate; 17-Top plate; 171-Electromagnetic trigger; 2-Feeding system; 21-Clamp; 22-Gas cylinder; 23-Liquid cylinder; 24-Sludge cylinder; 25-Fluid pump; 26-Gas pump; 27-Feed pipe; 28-Two-position three-way solenoid valve; 3-Gas collection system; 31-Outlet pipe; 32 - Piston chamber; 321- One-way electromagnetic exhaust; 33- Piston head; 34- Connecting rod; 35- Measurement and return assembly; 351- Electric push rod; 352- Laser rangefinder; 353- Target plate; 4- Conical flask; 5- Bottle shaking mechanism; 51- Clamping plate; 52- Ball joint; 53- Joint sleeve; 54- Worm gear; 541- Push rod; 542- Ball bearing; 55- Telescopic outer rod; 551- Threaded section; 552- Flat threaded section; 56- Telescopic inner rod; 57- Arc-shaped connecting plate; 58- Modular drive assembly; 581- Motor; 582- Worm gear. Detailed Implementation

[0029] To better understand the structure, functional features, and advantages of the present invention, preferred embodiments of the present invention will be described in detail below with reference to the accompanying drawings:

[0030] like Figures 1 to 8 As shown, this application proposes an integrated industrial wastewater anaerobic toxicity testing system, including an integrated device 1, a feeding system 2, and a gas collection system 3; the feeding system 2 is located on the side of the integrated device 1, the gas collection system 3 is snapped into the integrated device 1, and the integrated device 1 is equipped with a conical flask 4, a flask shaking mechanism 5, and a controller for controlling the feeding system 2, the gas collection system 3, and the flask shaking mechanism 5.

[0031] The feeding system 2 and the gas collection system 3 are respectively connected to the conical flask 4. The feeding system 2 automatically pumps the reactants into the conical flask 4 in proportion for reaction. The gas generated in the conical flask 4 enters the gas collection system 3 for automatic reading and recording. The bottle shaking mechanism 5 drives the conical flask 4 to shake evenly before the gas collection system 3 takes the reading.

[0032] See Figure 1 and Figure 2The integrated device 1 includes a single main unit 11 and an array of modular units 12. Both the main unit 11 and the modular units 12 include a base 13, a water bath 14, a support plate 15, a sliding plate 16, and an upper plate 17. The water bath 14 is inserted into the upper end of the base, the lower end of the support plate 15 is welded to the base 13, and the upper end of the support plate 15 is welded to the upper plate 17. The side of the sliding plate 16 is slidably connected to the inner wall of the base 13 with damping. A heating device is provided around the water bath 14. While the water bath 14 is inserted into the base, it is electrically connected to the controller, allowing direct control of the heating mode of the water bath 14.

[0033] See Figure 3 The main unit 11 is equipped with a control panel 111 at the front. The main unit 11 and the module unit 12 are plugged into each other. The control panel 111 can directly control various electrical control devices, and record gas readings and set the time for gas readings. When the main unit 11 and the module unit 12 are plugged in, the module unit 12 is connected to the main unit 11 and controlled synchronously through the control panel 111.

[0034] See Figure 7 To accommodate different numbers of parallel and control groups required for various experiments, the base 13 has a plug plate 131 at the front and a slot 132 at the rear. An electronic control board is housed inside the base 13, allowing the modular units 12 to be interconnected and electrically controlled. This design enables free rotation and arrangement of different groups for interconnection, ultimately connecting them all to the main unit 11. This modular design allows the experimental system to be assembled in a modular fashion to meet diverse experimental needs.

[0035] The base 13 of the main unit 11 is provided with a support 133 at the bottom so that the device can be placed on the experimental table. The lower part of the support 133 is made of high friction material to prevent the device from sliding and deflecting. The base 13 of the modular unit 12 is provided with casters 134 at the bottom so that the modular units 12 can be plugged into each other to form a complete experimental system. The plug-in plate 131 and the slot 132 are connected in a lockable and unlockable manner, which makes the connection between the devices more stable.

[0036] As another embodiment, such as Figure 2As shown, the feeding system 2 includes an array of clamps 21, a gas cylinder 22, a liquid cylinder 23, a sludge cylinder 24, a fluid pump 25, a gas pump 26, a feed pipe 27, and a two-position three-way solenoid valve 28. The rear end of the clamp 21 is fixedly connected to the outside of the support plate 15. The rear ends of the fluid pump 25, the gas pump 26, and the two-position three-way solenoid valve 28 are all inserted into the outside of the support plate 15. The gas cylinder 22, the liquid cylinder 23, and the sludge cylinder 24 are all snapped into the clamp 21. The gas cylinder 22 and the gas pump 26 are connected through the feed pipe 27. The sludge cylinder 24 and the liquid cylinder 23 are connected through the feed pipe 27 and extend to the fluid pump 25. The fluid pump 25 and the gas pump 26 are connected through the two-position three-way solenoid valve 28. The two-position three-way solenoid valve 28 is connected to the side of the conical bottle 4 through the feed pipe 27. A one-way valve is provided at the feed inlet of the conical bottle 4.

[0037] Among them, liquid bottle 23 and sludge bottle 24 can be directly connected to the material storage device, or the material can be temporarily stored by pre-filling nutrient solution and sludge. Gas bottle 22 is directly connected to the gas storage device. Clamp 21 can be used as follows: Figure 2 The encapsulated arc-shaped clamp 21 shown in the figure uses a clamping component with a certain deformation capability to directly insert the material bottle, so that it can be removed for cleaning after the experiment is completed.

[0038] Furthermore, the sludge bottle 24 can also be directly connected to the anaerobic aeration tank through a pipeline. By storing the experimental sludge in the anaerobic aeration tank, an anaerobic environment is provided for the sludge, so that the sludge is kept in a stable state. The gas used for anaerobic aeration can be nitrogen or carbon dioxide.

[0039] After the material preparation for the experiment is completed, the gas collection system 3 is not yet connected to the conical flask 4. The gas pump 26 is started first, pumping nitrogen through the gas cylinder 22 into the two-position three-way solenoid valve 28 and finally into the conical flask 4 to expel the air inside the conical flask 4. Then, the water bath 14 is started to heat the conical flask 4 inside. The two-position three-way solenoid valve 28 is switched, and then the fluid pump 25 is started, simultaneously drawing in the sludge and nutrient solution. The sludge and nutrient solution are initially mixed in the feed pipe 27 and finally pumped into the conical flask 4 to start the reaction. At this time, the gas collection system 3 is connected to the conical flask 4.

[0040] It should be noted that the feed inlet of conical flask 4 is equipped with a one-way valve to prevent backflow of gas and material. The upper end of conical flask 4 has an openable seal design, and its feed inlet and gas outlet are located on both sides of the upper part. After the experiment, conical flask 4 can be removed separately for cleaning.

[0041] As another embodiment, such as Figure 3 and Figure 4As shown, the gas collection system 3 includes an outlet pipe 31, a piston chamber 32, a piston head 33, a connecting rod 34, and a measurement return assembly 35. One end of the outlet pipe 31 is connected to the side of the conical flask 4 with a one-way valve, and the other end of the outlet pipe 31 is connected to the lower side of the piston chamber 32 with a one-way valve. The lower end of the piston chamber 32 is inserted into the upper end of the sliding plate 16. The piston head 33 is slidably connected to the inside of the piston chamber 32. One end of the connecting rod 34 is fixedly connected to the rear end of the piston head 33, and the other end of the connecting rod 34 is inserted into the measurement return assembly 35.

[0042] The gas collection system 3 can be quickly installed and disassembled by pulling out the sliding plate 16. After the feeding operation is completed, the gas outlet pipe 31 on the side of the piston chamber 32 can be manually connected to the conical flask 4. When a reaction occurs in the conical flask 4, methane gas enters the piston chamber 32 through the gas outlet pipe 31, lifting the piston head 33. The piston head 33 then moves vertically, driving the connecting rod 34 to move synchronously. By setting a pre-defined recording interval, the displacement distance of the connecting rod 34 can be automatically recorded by measuring the return component 35, thereby recording the gas volume.

[0043] See Figure 3 The measurement return assembly 35 includes an electric push rod 351, a laser rangefinder 352, and a target plate 353. The rear end of the electric push rod 351 is inserted into the upper plate 17, and the output end of the electric push rod 351 extends downward through the upper plate 17. The side of the laser rangefinder 352 is inserted into the side of the connecting rod 34 away from the piston head 33. The side of the target plate 353 is engaged with the upper side of the piston chamber 32. A one-way electromagnetic exhaust 321 is provided on the lower end of the piston chamber 32 away from the exhaust pipe 31. The piston chamber 32 is connected to the methane treatment mechanism through the one-way electromagnetic exhaust 321.

[0044] When the connecting rod 34 is driven upward by the gas, it drives the laser rangefinder 352 to move away from the target plate 353 in sync. When a reading is required, the laser rangefinder 352 starts to emit a laser to the target plate 353 to measure the distance and automatically records and converts the data through the control panel 111.

[0045] It should be noted that the laser rangefinder 352 can be replaced by other existing rangefinders made of materials that can achieve the above-mentioned technical effects, such as infrared rangefinders or other commonly used rangefinders with high precision. At the same time, when the connecting rod 34 is moved to the output end of the electric push rod 351, the laser rangefinder 352 automatically starts to measure the reading and record the time. Then, the electric push rod 351 automatically starts to press the connecting rod 34 downward, and the electromagnetic one-way valve in the piston chamber 32 is activated. As the connecting rod 34 moves downward, it pushes the piston head 33 downward, thereby expelling the methane gas from the piston chamber 32 and allowing it to enter the methane processing mechanism for processing.

[0046] Furthermore, as an alternative, the gas collection system 3 can also be designed using the traditional drainage method. This involves replacing the piston chamber 32 with a water bottle connected to the conical flask 4, and setting an additional drainage bottle on the sliding plate 16 connected to the water bottle. A liquid level detector is installed inside the drainage bottle. When gas enters the water bottle, the gas discharges water into the drainage bottle. The gas volume can then be measured by reading the water level inside the drainage bottle.

[0047] Furthermore, as an alternative, the gas collection system 3 can replace the piston chamber 32 with a storage bottle. The storage bottle and the conical bottle 4 are connected by a gas flow meter. At the same time, an infrared sensor is used to detect the concentration of methane gas in the storage bottle. Finally, the gas volume is calculated by formula through the control panel 111.

[0048] As another embodiment, such as Figures 5 to 8 As shown, the bottle shaking mechanism 5 includes a clamping plate 51, a ball joint 52, a joint sleeve 53, a worm gear 54, a telescopic outer rod 55, a telescopic inner rod 56, an arc-shaped connecting plate 57, and a modular drive assembly 58. The lower end of the clamping plate 51 is clamped to the upper end of the conical bottle 4, the upper end of the clamping plate 51 is welded and fixed to the lower end of the ball joint 52, the ball joint 52 is movably connected to the inner wall of the joint sleeve 53, the upper end of the joint sleeve 53 is fixedly connected to the lower end of the telescopic outer rod 55, the inner wall of the telescopic outer rod 55 and the outer wall of the telescopic inner rod 56 have a limited sliding connection, the upper end of the telescopic inner rod 56 is fixedly connected to the lower end of the upper plate 17, the inner wall of the worm gear 54 is threadedly connected to the outer wall of the telescopic outer rod 55, the upper end of the arc-shaped connecting plate 57 is inserted into the lower end of the upper plate 17, and the lower end of the arc-shaped connecting plate 57 is rotatably connected to the upper end of the worm gear 54.

[0049] Before conducting the experiment, the upper end of the conical flask 4 is clamped to the lower end of the clamping plate 51, and the conical flask 4 is placed in the water bath 14 for heating.

[0050] When a reading is required, the modular drive assembly 58 is activated, causing the worm gear 54 to rotate. Due to the threaded connection between the worm gear 54 and the telescopic outer rod 55, and the limitation imposed on the worm gear 54 by the arc-shaped connecting plate 57, the worm gear 54 will not undergo vertical displacement during rotation. The telescopic outer rod 55 is driven by the threaded connection of the worm 582 to move upward along the telescopic inner rod 56. At the same time, the telescopic inner rod 56 limits the telescopic outer rod 55, preventing it from rotating. The vertical movement of the telescopic outer rod 55 causes the joint sleeve 53 and the ball joint 52 to move upward, which in turn causes the clamping plate 51 and the conical flask 4 to move upward, causing the conical flask 4 to detach from the water bath 14 and preventing subsequent shaking within the water bath 14.

[0051] See Figure 5 , Figure 6 as well as Figure 8The outer wall of the telescopic outer rod 55 is provided with a threaded section 551, and the lower part of the threaded section 551 is a flat threaded section 552. The lower end of the worm gear 54 is engaged with a push rod 541. The end of the push rod 541 away from the worm gear 54 is movably provided with a ball 542. The lower end of the upper plate 17 is provided with an electromagnetic trigger 171 for triggering gas reading.

[0052] Under normal conditions, the internal thread of the worm gear 54 is threadedly connected to the threaded section 551 of the telescopic outer rod 55. As the worm gear 54 rotates, the telescopic outer rod 55 gradually moves upward. When the upper end of the telescopic outer rod 55 contacts the lower end of the upper plate 17, the flat threaded section 552 of the telescopic outer rod 55 contacts the internal thread of the worm gear 54, so that the rotation of the worm gear 54 can no longer drive the telescopic outer rod 55 to move upward. As the telescopic outer rod 55 rises, the clamping plate 51 rises and contacts the ball 542. Driven by the ball 542 and the push rod 541, the clamping plate 51 shifts, causing the conical bottle 4 to shift.

[0053] The continuous rotation of the worm gear 54 drives the push rod 541 and the ball bearing 542 to perform continuous circular motion, causing the clamping plate 51 to shake the conical flask 4. The ball bearing 542 has low friction and will not cause the clamping plate 51 to rotate on its own. At the same time, the feed pipe 27 and the air outlet pipe 31 exert a certain traction on the conical flask 4, which counteracts the driving effect of the small friction between the ball bearing 542 and the clamping plate 51, thereby preventing the clamping plate 51 and the conical flask 4 from rotating on their own.

[0054] Simultaneously, when the upper end of the telescopic outer rod 55 contacts the upper plate 17, it contacts the electromagnetic trigger 171. After the shaking operation is completed, the modular drive assembly 58 drives the worm gear 54 to reverse, and the telescopic outer rod 55 moves vertically downward, disengaging from the electromagnetic trigger 171. At this time, the gas collection system 3 is automatically triggered to perform gas reading and recording operations. As the clamping plate 51 and the conical flask 4 descend, the push rod 541 disengages from the clamping plate 51. Under the influence of gravity, the conical flask 4 returns to a vertical position and enters the water bath 14 to continue the reaction.

[0055] See Figure 5 and Figure 6 The modular drive assembly 58 includes a motor 581 and a worm gear 582. The motor 581 is bolted to the support plate 15 of the main unit 11. The output end of the motor 581 is plugged into the worm gear 582. The worm gear 582 is rotatably connected to the support plate 15. The array of worm gears 582 are plugged into each other. The worm gear 582 meshes with the worm wheel 54.

[0056] The motor 581 is a forward and reverse motor 581. The worm gears 582 are connected to each other so that the module machine 12 can be driven by the motor 581 to rotate synchronously after being connected to the host machine 11. This allows the host machine 11 and the module machine 12 to perform the shaking operation of the conical bottle 4 at the same time, thereby unifying the reading time and shaking effect.

[0057] Working principle:

[0058] Before the experiment, set up the required parallel and control groups, connect the conical flask 4 and the clamping plate 51 and place them in the water bath 14. Then connect the feeding system 2 and the material storage mechanism. After inserting each module machine 12 into the main unit 11 and connecting them to each other, the experiment can be started. First, the gas pump 26 pumps nitrogen into the conical flask 4 to purge the air. Then, the gas collection system 3 is connected to the conical flask 4, and the experiment can be started automatically. The sludge and nutrient solution mixture is pumped into the conical flask 4 by the fluid pump 25 for water bath heating reaction. The gas produced by the reaction enters the gas collection system 3 for storage.

[0059] Before the set reading time is reached, the motor 581 starts and drives the worm gear 582 to rotate. The interlocking worm gears 582 rotate synchronously, which in turn drives the worm wheel 54 to rotate. This causes the telescopic outer rod 55 to gradually move upward, and the clamping plate 51 rises and contacts the ball bearing 542. The clamping plate 51 drives the conical flask 4 to shift. The continuous rotation of the worm wheel 54 drives the push rod 541 and the ball bearing 542 to continuously perform circular motion, causing the conical flask 4 to shake. After the shaking is completed, the worm wheel 54 reverses, and the telescopic outer rod 55 moves vertically downward, disengaging from the electromagnetic trigger 171. The gas collection system 3 then performs the gas reading and recording operation.

[0060] The above are merely preferred embodiments of the present invention and are not intended to limit the present invention in any way. Any person skilled in the art can make many possible variations and modifications to the technical solutions of the present invention, or modify them into equivalent embodiments, without departing from the scope of the present invention. Therefore, any modifications, equivalent changes, and alterations made to the above embodiments based on the technology of the present invention without departing from the scope of the present invention are within the protection scope of the present invention.

Claims

1. An integrated anaerobic toxicity testing system for industrial wastewater, characterized in that, It includes an integrated device, a feeding system, and a gas collection system; the feeding system is located on the side of the integrated device, the gas collection system is snapped into the integrated device, and the integrated device is equipped with a conical flask, a flask shaking mechanism, and a controller for controlling the feeding system, the gas collection system, and the flask shaking mechanism; The feeding system and the gas collection system are respectively connected to the conical flask. The feeding system automatically pumps the reactants into the conical flask in proportion for reaction. The gas generated in the conical flask enters the gas collection system for automatic reading and recording. The bottle shaking mechanism drives the conical flask to shake evenly before the gas collection system reads the value. The integrated device includes a single host and an array of modular units; both the host and the modular units include a base, a water bath, a support plate, a sliding plate, and an upper plate. The water bath is inserted into the upper end of the base, the lower end of the support plate is welded to the base, the upper end of the support plate is welded to the upper plate, and the side of the sliding plate is slidably connected to the inner wall of the base with damping. The gas collection system includes an outlet pipe, a piston chamber, a piston head, a connecting rod, and a measurement and return assembly; one end of the outlet pipe is connected to a one-way valve on the side of the conical flask, and the other end of the outlet pipe is connected to a one-way valve on the lower side of the piston chamber; the lower end of the piston chamber is inserted into the upper end of the sliding plate; the piston head is slidably connected to the inside of the piston chamber; one end of the connecting rod is fixedly connected to the rear end of the piston head; and the other end of the connecting rod is inserted into the measurement and return assembly. The bottle shaking mechanism includes a clamping plate, a ball joint, a joint sleeve, a worm gear, a telescopic outer rod, a telescopic inner rod, an arc-shaped connecting plate, and a modular drive assembly. The lower end of the clamping plate is engaged with the upper end of the conical bottle, the upper end of the clamping plate is welded and fixed to the lower end of the ball joint, the ball joint is movably connected to the inner wall of the joint sleeve, the upper end of the joint sleeve is fixedly connected to the lower end of the telescopic outer rod, the inner wall of the telescopic outer rod and the outer wall of the telescopic inner rod have a limited sliding connection, the upper end of the telescopic inner rod is fixedly connected to the lower end of the upper plate, the inner wall of the worm gear is threadedly connected to the outer wall of the telescopic outer rod, the upper end of the arc-shaped connecting plate is inserted into the lower end of the upper plate, and the lower end of the arc-shaped connecting plate is rotatably connected to the upper end of the worm gear.

2. The integrated industrial wastewater anaerobic toxicity testing system according to claim 1, characterized in that, The main unit is equipped with a control panel at the front, and the main unit and the module are plugged into each other.

3. The integrated industrial wastewater anaerobic toxicity testing system according to claim 1, characterized in that, The base has a plug plate at the front and a slot at the rear. An electrical control board is installed inside the base, and the modules are plugged into each other and electrically connected.

4. The integrated industrial wastewater anaerobic toxicity testing system according to claim 1, characterized in that, The feeding system includes an array of clamps, a gas cylinder, a liquid cylinder, a sludge cylinder, a fluid pump, a gas pump, a feed pipe, and a two-position three-way solenoid valve. The rear end of the clamps is fixedly connected to the outside of the support plate. The rear ends of the fluid pump, the gas pump, and the two-position three-way solenoid valve are all inserted into the outside of the support plate. The gas cylinder, the liquid cylinder, and the sludge cylinder are all engaged with the clamps. The gas cylinder and the gas pump are connected through the feed pipe. The sludge cylinder and the liquid cylinder are connected through the feed pipe and extend to the fluid pump. The fluid pump and the gas pump are connected through the two-position three-way solenoid valve. The two-position three-way solenoid valve is connected to the side of the conical flask through the feed pipe. A one-way valve is provided at the feed inlet of the conical flask.

5. The integrated industrial wastewater anaerobic toxicity testing system according to claim 1, characterized in that, The measurement return assembly includes an electric push rod, a laser rangefinder, and a target plate. The rear end of the electric push rod is inserted into the upper plate, and the output end of the electric push rod extends downward through the upper plate. The side of the laser rangefinder is inserted into the side of the connecting rod away from the piston head. The side of the target plate is engaged with the upper side of the piston chamber. A one-way electromagnetic exhaust is provided at the lower end of the piston chamber away from the exhaust pipe. The piston chamber is connected to the methane treatment mechanism through the one-way electromagnetic exhaust.

6. The integrated industrial wastewater anaerobic toxicity testing system according to claim 5, characterized in that, The telescopic outer rod has a threaded section on its outer wall, with a flat threaded section at the bottom. A push rod is engaged at the lower end of the worm gear, and a ball is movably disposed at the end of the push rod away from the worm gear. An electromagnetic trigger for triggering gas readings is disposed at the lower end of the upper plate.

7. The integrated industrial wastewater anaerobic toxicity testing system according to claim 6, characterized in that, The modular drive assembly includes a motor and a worm gear. The motor is bolted to the support plate of the main unit. The output end of the motor is plugged into the worm gear. The worm gear is rotatably connected to the support plate. Multiple worm gears are plugged into each other. The worm gear meshes with the worm wheel.

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