Anaerobic reactor for treating high-concentration organic wastewater

Abstract

The invention relates to the technical field of organic wastewater treatment, and discloses an anaerobic reactor for high-concentration organic wastewater treatment, the anaerobic reactor comprises a reaction tank, the bottom of the reaction tank is fixedly communicated with a water inlet pipe, one end of the water inlet pipe extends into the reaction tank, and a conical water distributor is mounted at one end of the water inlet pipe; a three-phase separation group is arranged in the reaction tank, and the top of the reaction tank is fixedly communicated with a gas-liquid separation assembly. According to the anaerobic reactor for treating the high-concentration organic wastewater, the pressurizing piece is arranged and is used for pressurizing a separated water source in the separation barrel, so that the flowing strength of internal circulation is improved, the impact force of mixed water in a mixing area is increased, and the expansion fluidization strength of the mixed water is improved; the problem that in the prior art, in the separation process of a water source and gas in a gas-liquid separator in an anaerobic reactor, due to the fact that the immersion speed of the water source is high, a gas discharge port is prone to being blocked, and consequently biogas cannot be led out in order is solved.

Description

Technical Field

[0001] The present invention relates to the technical field of organic wastewater treatment, and specifically to an anaerobic reactor for treating high-concentration organic wastewater. Background Technique

[0002] The COD of high-concentration organic wastewater is generally above 2000 mg / L, and some even reach as high as tens of thousands or hundreds of thousands of mg / L. It is mainly generated during the production processes of industries such as food, chemical engineering, fermentation, medicine, papermaking, and leather making. The main methods for treating high-concentration wastewater include chemical treatment methods, physicochemical treatment methods, and biological treatment methods. Anaerobic biological treatment technology is a kind of wastewater biological treatment technology. Especially for the treatment of high-concentration organic wastewater, anaerobic biological treatment technology has incomparable advantages over aerobic biological treatment technology and has always been a research hotspot in the field of high-concentration organic wastewater treatment.

[0003] After retrieval, the Chinese utility model patent with the publication number CN213012190U discloses a new type of IC anaerobic reactor for treating high-concentration organic wastewater. The gas-liquid mixture generated in the second anaerobic zone enters the inside of the gas-liquid separator through the second upflow pipe. After being separated by the gas-liquid separator, the gas is discharged and collected through the exhaust pipe, the liquid re-enters the first anaerobic zone through the reflux pipe, the clean water enters the clean zone, and then is discharged and collected through the drain pipe; when this anaerobic reactor separates gas and liquid, it lacks the function of pressurizing the water source for internal circulation. As a result, when the organic wastewater discharge rate is much faster and the drain pipe cannot drain quickly, the liquid level of the water source inside the gas-liquid separator will gradually rise. Since the inside of the tank is in a constant pressure state, the water source after gas-liquid separation cannot quickly re-enter the anaerobic zone, thereby affecting its internal circulation treatment performance. And when the water source submerges the exhaust pipe, it will also affect the normal export work of its biogas. Summary of the Invention

[0004] (I) Technical Problems to be Solved

[0005] In view of the deficiencies of the prior art, the present invention provides an anaerobic reactor for treating high-concentration organic wastewater. Through the setting of the separation cylinder in the gas-liquid separation component, it is used for gas-liquid separation treatment. Through the setting of the exhaust pipe, it is used to export and utilize the separated biogas. Through the setting of the internal circulation pipe, it is used to internally circulate the separated water source to the mixing area to form an internal circulation treatment operation of the wastewater. Through the setting of the pressurizing component, it is used to pressurize the separated water source inside the separation cylinder to improve the flow force of its internal circulation, which not only increases the impact force of the mixed water in the mixing area and improves its expansion and fluidization strength, but also solves the problem in the prior art that in the gas-liquid separator of the anaerobic reactor, due to the relatively fast speed of the immersed water source, it is easy to block the gas discharge port, resulting in the inability to orderly export biogas.

[0006] (II) Technical Solution

[0007] To achieve the above object, the present invention provides the following technical solution: An anaerobic reactor for treating high-concentration organic wastewater, including a reaction tank. The bottom of the reaction tank is fixedly communicated with a water inlet pipe, and one end of the water inlet pipe extends into the interior of the reaction tank. A conical water distributor is installed at one end of the water inlet pipe. A three-phase separation group is arranged inside the reaction tank. The top of the reaction tank is fixedly communicated with a gas-liquid separation component. An overflow component is arranged above the interior of the reaction tank.

[0008] The gas-liquid separation component includes a separation cylinder fixed to the top of the reaction tank. The top of the separation cylinder is fixedly communicated with an exhaust pipe. The bottom of the separation cylinder is fixedly communicated with an internal circulation pipe, and the bottom end of the internal circulation pipe extends below the three-phase separation group. A pressurizing component for pressurizing the liquid is arranged inside the separation cylinder.

[0009] Preferably, the three-phase separation group includes at least two three-phase separators installed inside the reaction tank. Vent pipes are installed on at least two three-phase separators, and the top ends of at least two vent pipes extend into the interior of the separation cylinder. The top ends of at least two vent pipes are higher than the inner bottom of the separation cylinder.

[0010] Preferably, the pressurizing component includes a pressurizing cylinder fixedly communicated with the bottom of the separation cylinder, and the top end of the internal circulation pipe is fixedly communicated with the interior of the separation cylinder;

[0011] The top of the pressurizing cylinder is fixedly connected with an electric telescopic rod, and the telescopic end of the electric telescopic rod extends into the interior of the separation cylinder. The telescopic end of the electric telescopic rod is fixedly connected with a piston plate through a connecting shaft, and the outer surface of the piston plate contacts the inner surface of the pressurizing cylinder through a sealing sleeve. A plurality of through holes are opened inside the piston plate, and one-way valve sheets are arranged inside a plurality of through holes.

[0012] Preferably, a control cylinder is fixedly communicated with the inner circulation pipe. A transmission shaft is rotatably connected to the inside of the control cylinder through a bracket, and a plurality of blade plates are fixedly connected to the outer surface of the transmission shaft.

[0013] The bottom end of the inner circulation pipe is rotatably connected with a rotating sleeve, and a plurality of outlet pipes are fixedly communicated with the outer surface of the rotating sleeve. A group of spray nozzles are arranged on the outer surfaces of the plurality of outlet pipes. The plurality of outlet pipes are all parallel to the outer surface of the conical water distributor. The bottom end of the transmission shaft is fixedly connected to the inner bottom of the rotating sleeve.

[0014] Preferably, the bottom end of the inner circulation pipe is flared, and a telescopic pipe is slidably connected to the flared portion at the bottom end of the inner circulation pipe. The bottom end of the telescopic pipe is rotatably connected to the rotating sleeve. A plurality of tension springs for upward contraction of the telescopic pipe are installed at the flared portion at the bottom end of the inner circulation pipe.

[0015] Preferably, the overflow assembly includes an annular overflow weir fixed to the inner surface of the top of the reaction tank. A water guide pipe is fixedly connected to the outer surface of the reaction tank, and one end of the water guide pipe is communicated with the inside of the annular overflow weir.

[0016] Preferably, an overflow tank is fixedly connected to the outer surface of the reaction tank. One end of the water guide pipe is fixedly communicated with the inside of the overflow tank. A drain pipe is fixedly communicated with the top of one side of the overflow tank.

[0017] Preferably, an outer circulation pipe is fixedly communicated with the bottom end of the overflow tank, and the bottom end of the outer circulation pipe is fixedly communicated with the inside of the inner circulation pipe. An electric valve is installed on the outer circulation pipe. A conical collecting hood is fixedly connected to the bottom end of the reaction tank, and a sludge discharge pipe is fixedly communicated with the bottom of the conical collecting hood. One end of the sludge discharge pipe extends to the outside of the reaction tank.

[0018] (III) Beneficial effects

[0019] Compared with the prior art, the present invention provides an anaerobic reactor for treating high-concentration organic wastewater, which has the following beneficial effects:

[0020] 1. Through the setting of the separation cylinder in the gas-liquid separation component of the present invention, it is used for gas-liquid separation treatment. Through the setting of the exhaust pipe, it is used to export and utilize the separated biogas. Through the setting of the inner circulation pipe, it is used to internally circulate the separated water source to the mixing area to form an internal circulation treatment work of the wastewater. Through the setting of the pressurizing member, it is used to pressurize the separated water source inside the separation cylinder to improve the flow force of its internal circulation, not only increasing the impact force of the mixed water in the mixing area and improving its expansion and fluidization degree, but also solving the problem in the prior art that in the gas-liquid separator of the anaerobic reactor, due to the relatively fast speed of the immersed water source, it is easy to cause blockage of the gas discharge port, so that the biogas cannot be exported orderly.

[0021] 2. The bottom end of the inner circulation pipe of the present invention is rotatably connected with a rotating sleeve, which facilitates the inner circulation water inside the inner circulation pipe to enter the inside of the rotating sleeve and is dispersedly led out through a plurality of leading pipes. By cooperating with the transmission shaft to convert the surge force of the water source inside the inner circulation pipe into a rotating force, the rotating sleeve can be driven to rotate self - sufficiently. This can not only improve the dispersibility of the inner circulation water led out, enhance the wastewater treatment intensity, but also scour the sludge accumulated above the conical water distributor, increase the mixing intensity with the sludge and improve the self - cleaning work of the subsequent conical water distributor.

[0022] 3. Through the setting of the outer circulation pipe, the present invention is used to circularly discharge the wastewater precipitated in the overflow tank into the inner circulation pipe to form a circular wastewater treatment operation. When the wastewater led into the overflow tank by the water guide pipe is clear, the overflow tank can store a certain amount of the treated wastewater. When the wastewater treatment is completed or the reaction tank is internally cleaned, a part of the stored water source can be sprayed out in a rotating jet manner to form the self - cleaning work inside the reaction tank. It not only has the function of wastewater outer circulation, but also can backwash the inside of the reaction tank with the treated water source through the outer circulation method, further improving the functionality and practicality of the reactor. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a schematic structural diagram of an anaerobic reactor for treating high - concentration organic wastewater according to the present invention;

[0024] Figure 2 For the present invention Figure 1 a structural cross - sectional view of the reaction tank in;

[0025] Figure 3 For the present invention Figure 2 a combined diagram of the gas - liquid separation component, the three - phase separation component and the overflow component in;

[0026] Figure 4 For the present invention Figure 3 a combined diagram of the gas - liquid separation component and the overflow component in;

[0027] Figure 5 For the present invention Figure 4 a schematic structural diagram of the gas - liquid separation component in;

[0028] Figure 6 For the present invention Figure 5 a cross - sectional schematic diagram of the gas - liquid separation component in;

[0029] Figure 7 For the present invention Figure 6 a partial enlarged view of part A in;

[0030] Figure 8For the present invention Figure 4 is a schematic structural diagram of the overflow assembly in the present invention.

[0031] In the figure: 1, reaction tank; 2, water inlet pipe; 3, conical water distributor;

[0032] 4, gas-liquid separation assembly; 41, separation cylinder; 42, exhaust pipe;

[0033] 43, internal circulation pipe; 431, control cylinder; 432, drive shaft; 433, blade plate; 434, rotating sleeve; 435, outlet pipe; 436, telescopic pipe; 437, tension spring;

[0034] 44, pressurizing member; 441, pressurizing cylinder; 442, electric telescopic rod; 443, piston plate; 444, check valve plate;

[0035] 5, overflow assembly; 51, annular overflow weir; 52, water guide pipe; 53, overflow tank; 54, drain pipe; 55, external circulation pipe; 56, electric valve;

[0036] 6, three-phase separator; 7, ventilation pipe; 8, conical collecting hood; 9, sludge discharge pipe. Specific embodiments

[0037] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0038] Example 1:

[0039] Referring to the attached Figures 1-8 , an anaerobic reactor for treating high-concentration organic wastewater includes a reaction tank 1. The bottom of the reaction tank 1 is fixedly connected and communicated with a water inlet pipe 2, and one end of the water inlet pipe 2 extends into the interior of the reaction tank 1. A conical water distributor 3 is installed at one end of the water inlet pipe 2. A three-phase separation group is arranged inside the reaction tank 1. The top of the reaction tank 1 is fixedly connected and communicated with a gas-liquid separation assembly 4. An overflow assembly 5 is arranged above the interior of the reaction tank 1;

[0040] Through the arrangement of the water inlet pipe 2, it is used to discharge the high-concentration organic wastewater mixed with microorganisms into the interior of the conical water distributor 3. Through the conical water distributor 3 for distribution, it causes the interior of the reaction tank 1. The wastewater is separated and treated by the three-phase separation group. The gas and liquid are separated again by the gas-liquid separation assembly 4, and then the separated biogas is exported, and the water source is discharged back to the mixing area again to enhance the wastewater treatment effect; through the overflow assembly 5, the separated clear water is exported, thus forming the treatment work of high-concentration organic wastewater;

[0041] The gas-liquid separation assembly 4 includes a separation cylinder 41 fixed to the top of the reaction tank 1. The top of the separation cylinder 41 is fixedly connected and communicated with an exhaust pipe 42. The bottom of the separation cylinder 41 is fixedly connected and communicated with an internal circulation pipe 43, and the bottom end of the internal circulation pipe 43 extends below the three-phase separation group. A pressurizing member 44 for pressurizing the liquid is arranged inside the separation cylinder 41;

[0042] Through the setting of the separation cylinder 41 in the gas-liquid separation assembly 4, it is used for gas-liquid separation treatment. Through the setting of the exhaust pipe 42, it is used to export and utilize the separated biogas. Through the setting of the internal circulation pipe 43, it is used to internally circulate the separated water source to the mixing area to form the internal circulation treatment work of the wastewater. Through the setting of the pressurizing member 44, it is used to pressurize the separated water source inside the separation cylinder 41 to improve the flow force of its internal circulation, which not only increases the impact force of the mixed water in the mixing area and improves its expansion and fluidization strength, but also solves the problem that in the gas-liquid separator in the anaerobic reactor in the prior art, during the separation of the water source and gas, due to the relatively fast speed of the immersed water source, it is easy to cause blockage of the gas discharge port, so that the biogas cannot be exported orderly.

[0043] Refer to the appendix Figure 2 and Figure 3 As shown in the figure, the three-phase separation group includes at least two three-phase separators 6 installed inside the reaction tank 1. Vent pipes 7 are installed on at least two three-phase separators 6, and the top ends of at least two vent pipes 7 all extend into the separation cylinder 41, and the top ends of at least two vent pipes 7 are higher than the inner bottom of the separation cylinder 41;

[0044] The three-phase separator 6 adopts a separation mechanism in the prior art for separating gas, liquid and solid. Through the setting of the vent pipe 7, it is used to discharge the separated biogas into the gas-liquid separation assembly 4. The number of three-phase separators 6 can be set to different numbers according to the actual treatment situation to improve its high-concentration wastewater treatment performance.

[0045] Refer to the appendix Figure 6 As shown in the figure, the pressurizing member 44 includes a pressurizing cylinder 441 fixedly connected and communicated with the bottom of the separation cylinder 41, and the top end of the internal circulation pipe 43 is fixedly connected and communicated with the inside of the separation cylinder 41;

[0046] Through the setting of the pressurizing cylinder 441, it is used to collect and process the water source entering the separation cylinder 41 and discharge it to the mixing area through the internal circulation pipe 43 to enhance its wastewater mixing treatment performance;

[0047] The top of the pressure cylinder 441 is fixedly connected to an electric telescopic rod 442, and the telescopic end of the electric telescopic rod 442 extends into the separation cylinder 41. The telescopic end of the electric telescopic rod 442 is fixedly connected to a piston plate 443 through a connecting shaft, and the outer surface of the piston plate 443 is in contact with the inner surface of the pressure cylinder 441 through a sealing sleeve. A plurality of through holes are formed in the piston plate 443, and one-way valve plates 444 are arranged inside the plurality of through holes;

[0048] The electric telescopic rod 442 is connected to an external power supply and a control switch, and is used to drive the piston plate 443 to move up and down through the connecting shaft. Through the downward movement of the piston plate 443, the water source inside the pressure cylinder 441 can be pressurized, so that the water source inside the pressure cylinder 441 quickly drains into the mixing area through the internal circulation pipe 43, forming an internal circulation treatment operation;

[0049] Due to the plurality of through holes formed in the piston plate 443, it is convenient for the water source inside the separation cylinder 41 to enter below the piston plate 443, that is, inside the pressure cylinder 441. By installing one-way valve plates 444 inside the through holes, it is convenient to conduct one-way control of the through holes, which not only facilitates the rapid entry of the water source inside the separation cylinder 41 into the pressure cylinder 441, but also when the piston plate 443 moves downward, the water source inside the pressure cylinder 441 will not flow back, thereby improving its internal circulation water pressurization performance.

[0050] Refer to the appendix Figure 4 、 Figure 6 and Figure 8 As shown in FIGS. [FIGURES NOT SPECIFIED], the overflow assembly 5 includes an annular overflow weir 51 fixed to the inner surface of the top of the reaction tank 1. A water guide pipe 52 is fixedly connected to the outer surface of the reaction tank 1, and one end of the water guide pipe 52 communicates with the inside of the annular overflow weir 51.

[0051] Through the setting of the annular overflow weir 51, it is used to separate the upper clear water and uniformly discharge it through the water guide pipe 52 for the next round of treatment work.

[0052] Example 2: Different from Example 1;

[0053] Refer to the appendix Figure 6 and Figure 7 As shown in FIGS. [FIGURES NOT SPECIFIED], a control cylinder 431 is fixedly connected to the internal circulation pipe 43. A transmission shaft 432 is rotatably connected to the inside of the control cylinder 431 through a bracket, and a plurality of blade plates 433 are fixedly connected to the outer surface of the transmission shaft 432;

[0054] By pressurizing the internal circulating water in the internal circulating pipe 43 through the pressurizing member 44, the internal circulating water can flow downward through the internal circulating pipe 43 quickly. Its water source flow power can drive a plurality of vane plates 433, causing the plurality of vane plates 433 to rotate around the transmission shaft 432 as the axis, and then driving the transmission shaft 432 to rotate;

[0055] The bottom end of the internal circulating pipe 43 is rotatably connected with a rotating sleeve 434, and a plurality of outlet pipes 435 are fixedly communicated with the outer surface of the rotating sleeve 434. A set of spray nozzles are arranged on the outer surfaces of the plurality of outlet pipes 435. The plurality of outlet pipes 435 are all parallel to the outer surface of the conical water distributor 3. The bottom end of the transmission shaft 432 is fixedly connected with the inner bottom of the rotating sleeve 434;

[0056] By rotatably connecting the bottom end of the internal circulating pipe 43 with the rotating sleeve 434, it is convenient for the internal circulating water inside the internal circulating pipe 43 to enter the inside of the rotating sleeve 434, and be dispersed and led out through the plurality of outlet pipes 435. Cooperating with the transmission shaft 432 to convert the surge power of the water source inside the internal circulating pipe 43 into rotational force, the rotating sleeve 434 can be driven to rotate. This can not only improve the dispersion of the internal circulating water outlet, enhance the wastewater treatment intensity, but also scour the sludge accumulated above the conical water distributor 3, increase the mixing strength with the sludge and improve the subsequent self-cleaning work of the conical water distributor 3.

[0057] The bottom end of the internal circulating pipe 43 is in a flared shape, and a telescopic pipe 436 is slidably connected to the flared part at the bottom end of the internal circulating pipe 43. The bottom end of the telescopic pipe 436 is rotatably connected with the rotating sleeve 434. A plurality of tension springs 437 for contracting the telescopic pipe 436 upward are installed at the flared part at the bottom end of the internal circulating pipe 43;

[0058] Since the bottom end of the internal circulating pipe 43 is in a flared shape and the telescopic pipe 436 is slidably connected to the flared part at the bottom end of the internal circulating pipe 43 through a sealing sleeve, when pressurizing the internal circulating water source inside the internal circulating pipe 43 through the pressurizing member 44, the telescopic pipe 436 can move out from the bottom end of the internal circulating pipe 43. Cooperating with the pulling force of the tension spring 437 itself, the telescopic pipe 436 that has lost the pressurizing work can be contracted, thereby forming the up and down undulation of the rotating sleeve 434 and the plurality of outlet pipes 435, further improving the dispersion of the water guiding in the internal circulating pipe 43, further enhancing the full mixing of the granular sludge at the bottom and the internal circulating water, and increasing the wastewater treatment performance;

[0059] It should be noted here that the bottom end of the transmission shaft 432 is telescopic, which is convenient for cooperating with the up and down undulation of the rotating sleeve 434.

[0060] Example 3: Different from Example 1;

[0061] Refer to the appendix Figure 4 、Figure 6 and Figure 8 One end of a water guide pipe 52 is fixedly communicated with the inside of an overflow tank 53 fixedly connected to the outer surface of a reaction tank 1, and a drain pipe 54 is fixedly communicated with the top of one side of the overflow tank 53;

[0062] Through the arrangement of the overflow tank 53, the solid-liquid separation of the water source inside the annular overflow weir 51 can be further carried out to improve its wastewater treatment performance. Through the arrangement of the drain pipe 54, it is used to export the upper clear water, improving the overflow performance of wastewater treatment.

[0063] The bottom end of the overflow tank 53 is fixedly communicated with an outer circulation pipe 55, and the bottom end of the outer circulation pipe 55 is fixedly communicated with the inside of an inner circulation pipe 43. An electric valve 56 is installed on the outer circulation pipe 55. The bottom end of the reaction tank 1 is fixedly connected with a conical collection hood 8, and a sludge discharge pipe 9 is fixedly communicated with the bottom of the conical collection hood 8, and one end of the sludge discharge pipe 9 extends to the outside of the reaction tank 1;

[0064] Through the arrangement of the outer circulation pipe 55, it is used to circularly discharge the wastewater precipitated inside the overflow tank 53 into the inner circulation pipe 43 to form a circular wastewater treatment operation. When the wastewater guided into the overflow tank 53 by the water guide pipe 52 is clear, the overflow tank 53 can store a certain amount of the treated wastewater. When the wastewater treatment is completed or the inside of the reaction tank 1 is cleaned, a part of the stored water source can be sprayed out in a rotating jet manner to form self-cleaning of the inside of the reaction tank 1. It not only has the function of wastewater external circulation, but also can backwash the inside of the reaction tank 1 with the treated water source through the external circulation method, further improving the functionality and practicality of the reactor.

[0065] Through the arrangement of the conical collection hood 8, it is used to collect and treat the sludge at the bottom of the reaction tank 1 and uniformly export it through the sludge discharge pipe 9.

[0066] It should be noted that the term "comprising" or any other variant thereof is intended to cover non-exclusive inclusion, so that a process, method, article or device comprising a series of elements not only includes those elements, but also includes other elements not expressly listed, or elements inherent to such process, method, article or device. Without further limitation, an element defined by the phrase "comprising a..." does not exclude the presence of additional identical elements in the process, method, article or device comprising the element.

[0067] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An anaerobic reactor for treating high-concentration organic wastewater, comprising a reaction tank (1), wherein the bottom of the reaction tank (1) is fixedly connected to a water inlet pipe (2), and one end of the water inlet pipe (2) extends to the interior of the reaction tank (1), and one end of the water inlet pipe (2) is installed with a conical water distributor (3), characterized in that: A three-phase separation group is arranged inside the reaction tank (1), a gas-liquid separation component (4) is fixedly connected to the top of the reaction tank (1), and an overflow component (5) is arranged above the inside of the reaction tank (1); The gas-liquid separation component (4) comprises a separation cylinder (41) fixed to the top of the reaction tank (1); the top of the separation cylinder (41) is fixedly connected to an exhaust pipe (42); the bottom of the separation cylinder (41) is fixedly connected to an internal circulation pipe (43), and the bottom end of the internal circulation pipe (43) extends to the bottom of the three-phase separation group; and a pressurizing member (44) for pressurizing the liquid is arranged inside the separation cylinder (41).

2. The anaerobic reactor for treating high-concentration organic wastewater according to claim 1, characterized in that: The three-phase separation group comprises at least two three-phase separators (6) installed inside the reaction tank (1), and at least two three-phase separators (6) are each installed with a ventilation pipe (7), and the top ends of at least two ventilation pipes (7) extend to the inside of the separation cylinder (41), and the top ends of at least two ventilation pipes (7) are each higher than the inner bottom of the separation cylinder (41).

3. The anaerobic reactor for treating high-concentration organic wastewater according to claim 1, characterized in that: The pressurizing member (44) comprises a pressurizing cylinder (441) fixedly connected to the bottom of the separation cylinder (41), and the top end of the internal circulation pipe (43) is fixedly connected to the interior of the separation cylinder (41); The top of the pressurizing cylinder (441) is fixedly connected to an electric telescopic rod (442), and the telescopic end of the electric telescopic rod (442) extends to the interior of the separation cylinder (41). The telescopic end of the electric telescopic rod (442) is fixedly connected to a piston plate (443) via a connecting shaft, and the outer surface of the piston plate (443) contacts the inner surface of the pressurizing cylinder (441) via a sealing sleeve. A plurality of through openings are opened inside the piston plate (443), and a one-way valve plate (444) is arranged inside each of the through openings.

4. The anaerobic reactor for treating high-concentration organic wastewater according to claim 1, characterized in that: The inner circulation pipe (43) is fixedly connected to a control cylinder (431), the interior of the control cylinder (431) is rotatably connected to a transmission shaft (432) via a bracket, and the outer surface of the transmission shaft (432) is fixedly connected to a plurality of blade plates (433); The bottom end of the inner circulation pipe (43) is rotatably connected to a rotating sleeve (434), and the outer surface of the rotating sleeve (434) is fixedly connected to a plurality of outlet pipes (435), each of which has a group of nozzles on its outer surface, and each of the outlet pipes (435) is parallel to the outer surface of the conical water distributor (3), and the bottom end of the transmission shaft (432) is fixedly connected to the inner bottom of the rotating sleeve (434).

5. The anaerobic reactor for treating high-concentration organic wastewater according to claim 4, characterized in that: The bottom end of the inner circulation pipe (43) is flared, and a telescopic pipe (436) is slidably connected to the flared bottom end of the inner circulation pipe (43), and the bottom end of the telescopic pipe (436) is rotatably connected to the rotating sleeve (434), and a plurality of tension springs (437) for contracting the telescopic pipe (436) upward are installed at the flared bottom end of the inner circulation pipe (43).

6. An anaerobic reactor for treating high-concentration organic wastewater according to any one of claims 1 to 5, characterized in that: The overflow assembly (5) comprises an annular overflow weir (51) fixed to the inner surface of the top of the reaction tank (1); a water guide pipe (52) is fixedly connected to the outer surface of the reaction tank (1), and one end of the water guide pipe (52) is connected to the interior of the annular overflow weir (51).

7. The anaerobic reactor for treating high-concentration organic wastewater according to claim 6, characterized in that: The outer surface of the reaction tank (1) is fixedly connected to an overflow box (53), one end of the water guide pipe (52) is fixedly connected to the inside of the overflow box (53), and the top of one side of the overflow box (53) is fixedly connected to a drain pipe (54).

8. The anaerobic reactor for treating high-concentration organic wastewater according to claim 6, characterized in that: The bottom end of the overflow box (53) is fixedly connected to an external circulation pipe (55), and the bottom end of the external circulation pipe (55) is fixedly connected to the inside of the internal circulation pipe (43), and an electric valve (56) is installed on the external circulation pipe (55). The bottom end of the reaction tank (1) is fixedly connected to a conical collecting cover (8), and the bottom of the conical collecting cover (8) is fixedly connected to a mud discharge pipe (9), and one end of the mud discharge pipe (9) extends to the outside of the reaction tank (1).

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