Integrated intelligent sensing and automatic control of full-mixed anaerobic reactor

Abstract

The utility model relates to an anaerobic reactor discloses a full mixed anaerobic reactor of integration intelligence sensing and automatic control, including anaerobic reactor body, be provided with unloading residue valve, layered blow-off valve on anaerobic reactor body, unloading residue valve, layered blow-off valve are all electrically adjusted valve, still include intelligent control system, and the intelligent control system includes setting on the sludge concentration meter of anaerobic reactor body lateral wall, setting on the liquid level meter and control unit of baffle bottom wall, sludge concentration meter's signal output end, liquid level meter's signal output end all are connected with control unit signal input end communication, control unit signal output end and unloading residue valve's signal input end, layered blow-off valve's signal input end all are communication connection. The utility model can carry out real -time regulation according to the real sludge concentration in anaerobic reactor body, the change of suspension liquid level, has guaranteed the microbial community stability, has improved the processing efficiency, the utility model is suitable for wastewater treatment industry.

Description

Technical Field

[0001] This utility model relates to an anaerobic reactor, specifically a fully mixed anaerobic reactor integrating intelligent sensing and automatic control. Background Technology

[0002] An anaerobic reactor is a biological treatment device that uses the metabolic activity of anaerobic microorganisms to treat organic wastewater under anaerobic or hypoxic conditions. Its core principle is to decompose complex organic matter in the wastewater into methane and carbon dioxide through the anaerobic digestion process of microorganisms.

[0003] Patent CN212356943U discloses a fully mixed anaerobic reactor with an enamel steel plate assembly structure. Its operating principle is as follows: liquid is injected into the anaerobic reactor body through a water injection pipe. The motor is started to drive the rotating seat and the structure connected to the rotating seat surface to rotate, so that the mixing plate stirs the liquid inside the anaerobic reactor body. The liquid sediment above the partition sinks down, and the liquid passes through the grid frame and the mud-blocking permeable plate and is transported to the bottom of the partition for sedimentation through the through pipe. The sediment on the surface of the partition can be discharged by opening the sludge discharge valve pipe, and the sediment and suspension can be discharged in layers by opening the stratified sewage discharge valve pipe.

[0004] However, the sludge discharge valve and the stratified sewage discharge valve in the above patents rely on manual opening and closing, which is time-consuming, labor-intensive and inefficient. Furthermore, manual operation cannot achieve precise control, making it difficult to discharge sludge or sewage in a timely and appropriate manner based on the actual sludge concentration and suspension level changes in the reactor. This may lead to excessive fluctuations in sludge concentration in the reactor, affecting the stability of the microbial community and the treatment efficiency. Utility Model Content

[0005] This invention aims to provide a fully mixed anaerobic reactor that integrates intelligent sensing and automatic control, in order to solve the problems of low treatment efficiency caused by the reliance on manual opening and closing of the sludge discharge valve and the stratified sewage discharge valve in existing anaerobic reactors, as well as the difficulty in real-time adjustment based on the actual sludge concentration and suspension level changes in the reactor.

[0006] To achieve the above objectives, the technical solution adopted by this utility model is as follows: A fully mixed anaerobic reactor integrating intelligent sensing and automatic control includes an anaerobic reactor body. The inner wall of the reactor body is equipped with baffles, and through-tubes are inserted into the baffles. Above the through-tubes are sequentially arranged buckles and a grid frame. A motor is mounted on the top plate of the reactor body, and a rotating seat is fixedly connected to the output end of the motor shaft. A tension plate and a mixing plate are arranged on the surface of the rotating seat. A water injection pipe and an exhaust pipe are arranged on the surface of the reactor body, and a sludge discharge valve is located near the baffles on the surface of the reactor body. A [further details about the bottom of the reactor body are missing]. The stratified discharge valve and its base, as well as the sludge discharge valve and stratified discharge valve, are all electrically adjustable valves. The system also includes an intelligent control system, comprising a sludge concentration meter, a level gauge, and a control unit. The sludge concentration meter is mounted on the side wall of the anaerobic reactor body, located above the partition, while the level gauge is mounted on the bottom wall of the partition. The signal output terminals of both the sludge concentration meter and the level gauge are communicatively connected to the signal input terminal of the control unit. Furthermore, the signal output terminals of both the control unit and the sludge discharge valve, as well as the stratified discharge valve, are communicatively connected.

[0007] As a limitation of this utility model: the intelligent control system also includes a temperature sensor, which is installed on the inner wall of the anaerobic reactor body at the location of the exhaust pipe, and the signal output terminal of the temperature sensor is communicatively connected to the signal input terminal of the control unit.

[0008] As another limitation of this utility model: at least two submersible agitators are provided at intervals on the side wall inside the anaerobic reactor body.

[0009] As a further limitation of this utility model: the submersible mixer is fixed inside the anaerobic reactor body by a fixing member, which includes a guide rod fixed on the inner side wall of the anaerobic reactor body and a bracket fixedly connected to the guide rod. The submersible mixer is fixed on the bracket and the impeller end of the submersible mixer is inclined upward.

[0010] As a further limitation of this utility model: the impeller end of the submersible mixer forms an angle of 30° with the horizontal plane.

[0011] By adopting the above technical solution, the beneficial effects achieved by this utility model compared with the prior art are as follows: Compared to existing anaerobic reactors, the main improvement of this invention lies in replacing the sludge discharge valve and the stratified blowdown valve with electrically adjustable valves, and adding an intelligent control system. During implementation, when the sludge concentration meter shows an excessively high concentration, a feedback signal is sent to the control unit. The control unit then automatically opens the sludge discharge valve to discharge sludge until the concentration returns to normal. The level gauge monitors the level of the suspension; when the level is high, a feedback signal is sent to the control unit, which then automatically opens the stratified blowdown valve to discharge the suspension and sediment. This invention achieves automated and precise discharge of sludge and suspension through an intelligent control system, eliminating the need for manual opening and closing, saving time and labor, improving treatment efficiency, and ensuring the stability of the microbial community.

[0012] In summary, this invention can make real-time adjustments based on the actual sludge concentration and suspension level changes within the anaerobic reactor, ensuring the stability of the microbial community and improving treatment efficiency; this invention is applicable to the wastewater treatment industry. Attached Figure Description

[0013] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments.

[0014] Figure 1 This is a schematic diagram of the structure of an embodiment of the present utility model; Figure 2 This is a schematic diagram of the submersible mixer, guide rod, and support in an embodiment of this utility model.

[0015] In the diagram: 1-Anaerobic reactor body, 101-Side wall, 2-Baffle, 3-Through pipe, 4-Base, 5-Grid frame, 6-Motor, 7-Rotating seat, 8-Pull plate, 9-Mixing plate, 10-Water injection pipe, 11-Exhaust pipe, 12-Sludge discharge valve, 13-Layered sewage discharge valve, 14-Sludge concentration meter, 15-Level gauge, 16-Temperature sensor, 17-Submersible agitator, 171-Impeller end, 18-Guide rod, 19-Support. Detailed Implementation

[0016] The preferred embodiments of the present invention will be described below with reference to the accompanying drawings. It should be understood that the preferred embodiments described herein are for illustration and explanation only and do not constitute a limitation thereof.

[0017] like Figures 1-2As shown, this embodiment includes an anaerobic reactor body 1. A partition 2 is provided on the inner wall of the anaerobic reactor body 1. A through-tube 3 is inserted into the partition 2. A retaining ring and a grid frame 5 are sequentially arranged above the through-tube 3. A motor 6 is installed on the top plate of the anaerobic reactor body 1. A rotating seat 7 is fixedly connected to the output end of the motor 6's shaft. A tension plate 8 and a mixing plate 9 are provided on the surface of the rotating seat 7. A water injection pipe 10 and an exhaust pipe 11 are provided on the surface of the anaerobic reactor body 1. A slag discharge valve 12 is provided on the surface of the anaerobic reactor body 1 near the partition 2. A stratified sludge discharge valve 13 and a base 4 are provided at the bottom of the anaerobic reactor body 1. This part is prior art; referring to patent publication number CN212356943U, the structure and operating principle of this part will not be described in detail in this embodiment.

[0018] This embodiment is an improvement based on the aforementioned patent, and the specific improvements are as follows: I. The slag discharge valve 12 and the stratified sewage discharge valve 13 both adopt existing electric regulating valves, and an intelligent control system is added at the same time.

[0019] The structure of the electric regulating valve is existing technology and will not be described in detail in this embodiment.

[0020] The intelligent control system includes a sludge concentration meter 14, a level gauge 15, and a control unit, all of which utilize existing technologies.

[0021] A sludge concentration meter 14 is installed on the side wall 101 of the anaerobic reactor body 1, above the partition 2, to monitor the sludge concentration in real time. A level gauge 15 is installed on the bottom wall of the partition 2 to monitor the liquid level. The signal output terminals of both the sludge concentration meter 14 and the level gauge 15 are communicatively connected to the signal input terminal of the control unit. The signal output terminal of the control unit is also communicatively connected to the signal input terminals of the sludge discharge valve 12 and the stratified drain valve 13. The control unit controls the opening and closing of the sludge discharge valve 12 and the stratified drain valve 13 through a preset program. In practice, when the sludge concentration meter 14 shows an excessively high concentration, it sends a feedback signal to the control unit. At this time, the control unit controls the sludge discharge valve 12 to automatically open and discharge sludge until the concentration returns to normal. The level gauge 15 monitors the level of the suspension. When the level is high, it sends a feedback signal to the control unit, which then controls the stratified drain valve 13 to automatically open and discharge the suspension and sediment.

[0022] Furthermore, the intelligent control system also includes a temperature sensor 16, which employs existing technology. The temperature sensor 16 is located on the inner wall of the anaerobic reactor body 1 at the location of the exhaust pipe 11. The signal output terminal of the temperature sensor 16 is communicatively connected to the signal input terminal of the control unit. The temperature sensor 16 is used to monitor the temperature of the reaction environment in real time, ensuring that the anaerobic bacteria are in an optimal activity state. When the temperature is abnormal, the temperature sensor 16 sends a signal to the control unit, which can then issue an alarm.

[0023] II. Add a submersible mixer 17.

[0024] At least two submersible agitators 17 are arranged at intervals along the circumference of the anaerobic reactor body 1 on the side wall 101 inside the anaerobic reactor body 1. In this embodiment, four submersible agitators 17 are provided, evenly spaced along the circumference of the anaerobic reactor body 1, such as... Figure 1 As shown, the submersible mixer 17 is located between the partition 2 and the sludge concentration meter 14. This structure of the submersible mixer 17 is existing technology, and its structure and mixing principle will not be described in detail in this embodiment.

[0025] The submersible mixer 17 is fixed inside the anaerobic reactor body 1 by fasteners, including a guide rod 18 fixed to the inner side wall 101 of the anaerobic reactor body 1 and a bracket 19 fixedly connected to the guide rod 18. The submersible mixer 17 is fixed to the bracket 19, and the impeller end 171 of the submersible mixer 17 is inclined upward. The method of installing the submersible mixer 17 using the guide rod 18 and bracket 19 is existing technology. The improvement in this embodiment is that the impeller end 171 of the submersible mixer 17 is inclined upward. Specifically, as shown... Figure 2 As shown, in this embodiment, the impeller end 171 of the submersible mixer 17 forms an angle α of 30° with the horizontal plane.

[0026] The original anaerobic reactor used a top motor 6 to drive the mixing plate 9 for stirring. However, when operating with high-concentration, high-viscosity sludge, dead zones may exist, and the motor 6 has a large starting torque and high energy consumption. This application adds a submersible mixer 17 to assist stirring, which reduces the starting torque of the motor 6, lowers energy consumption, and the submersible mixer 17 and the mixing plate 9 work together to achieve stirring without dead zones.

[0027] In this application, the impeller end 171 of the submersible mixer 17 forms a 30° angle α with the horizontal plane. If the angle is too small (close to horizontal), the water flow mainly acts in the horizontal direction, resulting in insufficient ability to lift the bottom sludge. If the angle is too large (e.g., above 45°), too much energy is consumed in the vertical lifting, weakening the horizontal diffusion capacity and leading to poor mixing in the area near the sidewall 101, and increasing the load on the motor 6. In this embodiment, the angle is set to 30°. At this angle, the water flow propelled by the impeller rotation is not simply horizontal or vertical, but generates a composite flow field that combines horizontal circumferential flow and vertical upward flow. The fluid kinetic energy generated at this angle can be transferred to the surrounding medium with optimal efficiency, forming a turbulent state conducive to mixing. This structure can ensure that there is no dead-angle mixing within the anaerobic reactor body 1, and can also minimize energy consumption.

[0028] It should be noted that the above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the above embodiments, those skilled in the art can still modify the technical solutions described in the above embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A fully mixed anaerobic reactor integrating intelligent sensing and automatic control, comprising an anaerobic reactor body, an inner wall of which is provided with a partition, through-tubes inserted into the partitions, a retaining ring and a grid frame arranged sequentially above the through-tubes, a motor mounted on the top plate of the anaerobic reactor body, a rotating seat fixedly connected to the output end of the motor shaft, a tension plate and a mixing plate arranged on the surface of the rotating seat, a water injection pipe and an exhaust pipe arranged on the surface of the anaerobic reactor body, and a sludge discharge valve arranged on the surface of the anaerobic reactor body near the partition, and a stratified sludge discharge valve and a base arranged at the bottom of the anaerobic reactor body, characterized in that... Both the sludge discharge valve and the stratified sewage discharge valve are electrically adjustable valves. The system also includes an intelligent control system, which comprises a sludge concentration meter, a level gauge, and a control unit. The sludge concentration meter is installed on the side wall of the anaerobic reactor body, above the partition plate, while the level gauge is installed on the bottom wall of the partition plate. The signal output terminals of both the sludge concentration meter and the level gauge are communicatively connected to the signal input terminal of the control unit. The signal output terminal of the control unit is also communicatively connected to the signal input terminal of the sludge discharge valve, and the signal output terminal of the control unit is also communicatively connected to the signal input terminal of the stratified sewage discharge valve.

2. The fully hybridized anaerobic reactor integrating intelligent sensing and automatic control according to claim 1, characterized in that, The intelligent control system also includes a temperature sensor, which is installed on the inner wall of the anaerobic reactor body at the location of the exhaust pipe. The signal output terminal of the temperature sensor is communicatively connected to the signal input terminal of the control unit.

3. A fully hybrid anaerobic reactor integrating intelligent sensing and automatic control according to claim 1 or 2, characterized in that, At least two submersible agitators are spaced apart on the side wall inside the anaerobic reactor body.

4. The fully mixed anaerobic reactor integrating intelligent sensing and automatic control according to claim 3, characterized in that, The submersible mixer is fixed inside the anaerobic reactor body by fasteners, which include guide rods fixed to the inner side wall of the anaerobic reactor body and brackets fixedly connected to the guide rods. The submersible mixer is fixed on the brackets and the impeller end of the submersible mixer is inclined upward.

5. The fully hybridized anaerobic reactor integrating intelligent sensing and automatic control according to claim 4, characterized in that, The impeller end of the submersible mixer forms a 30° angle with the horizontal plane.

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