Water distribution and circular stirring device of anaerobic reactor

Abstract

The utility model relates to an anaerobic reactor water distribution and circulation stirring device which comprises a tank body, a first reaction chamber, a second reaction chamber and a settling chamber are sequentially arranged in the tank body from bottom to top, the lower portion of the settling chamber is communicated with a first outer circulation pipe, the other end of the first outer circulation pipe is communicated with a circulation pump, and an annular pipe is arranged on the edge of the bottom of the first reaction chamber. A plurality of liquid holes are uniformly distributed in the inner side of the annular pipe, a liquid outlet of the circulating pump is communicated with a second outer circulating pipe, the other end of the second outer circulating pipe penetrates through the tank body to be communicated with the annular pipe, and stirring mechanisms are arranged in the first reaction chamber and the second reaction chamber; by arranging the stirring mechanism, sewage and sludge particles can be stirred, the contact speed of the sewage and the sludge is increased, the reaction time is shortened, the sewage treatment efficiency is improved, a sludge-water mixed solution is sprayed out from the liquid holes, the mixed solution at the bottom of the first reaction chamber can be in a flowing state, and the sludge particles are prevented from being precipitated; the sewage treatment efficiency is further improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to sewage treatment technical field, concretely relates to an anaerobic reactor water distribution and circulating stirring device. BACKGROUND

[0002] Anaerobic reactor is one of the commonly used equipment in the field of sewage treatment, and is an effective way to remove organic pollutants and reduce operation cost. Anaerobic reactor uses large-surface substances such as combined fillers as carriers, anaerobic microorganisms are attached to the surface of the combined fillers in the form of biofilm, and the microorganisms are in a flowing state in the sewage, so that the microorganisms contact, adsorb and decompose the organic matter in the sewage, thereby achieving the purpose of treatment.

[0003] At present, the sewage in some existing anaerobic reactors has a long time of full contact with sludge particles, prolongs the reaction time, reduces the sewage treatment efficiency, and sludge particles are easy to form a deposit at the bottom of the anaerobic reactor, which can further reduce the sewage treatment efficiency. UTILITY MODEL CONTENT

[0004] The utility model aims at designing an anaerobic reactor water distribution and circulating stirring device, which can solve the problems mentioned in the background art.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical scheme:

[0006] An anaerobic reactor water distribution and circulating stirring device, comprising a tank body, a first reaction chamber, a second reaction chamber and a sedimentation chamber are sequentially arranged in the tank body from bottom to top, a No. 1 external circulation pipe is communicated with the lower part of the sedimentation chamber, the other end of the No. 1 external circulation pipe is communicated with a circulating pump, an annular pipe is arranged at the edge of the bottom of the first reaction chamber, a plurality of liquid holes are uniformly distributed on the inner side of the annular pipe, a No. 2 external circulation pipe is communicated with the liquid outlet of the circulating pump, the other end of the No. 2 external circulation pipe penetrates through the tank body and is communicated with the annular pipe, and a stirring mechanism is arranged in the first reaction chamber and the second reaction chamber.

[0007] Further, a water distributor, a No. 1 three-phase separator and a No. 2 three-phase separator are installed in the tank body, the water distributor is arranged at the bottom of the tank body, the first reaction chamber is arranged between the water distributor and the No. 1 three-phase separator, the second reaction chamber is arranged between the No. 1 three-phase separator and the No. 2 three-phase separator, and the sedimentation chamber is arranged between the No. 2 three-phase separator and the top of the tank body.

[0008] Still further, a gas-liquid separator is installed at the top of the tank body, the No. 1 three-phase separator is communicated with the gas-liquid separator through a No. 1 lifting pipe, the No. 2 three-phase separator is communicated with the gas-liquid separator through a No. 2 lifting pipe, and the water distributor is communicated with the gas-liquid separator through an internal circulation pipe.

[0009] Further, the top of the gas-liquid separator is communicated with an exhaust pipe.

[0010] Further, the water distributor is communicated with a liquid inlet pipe, and the other end of the liquid inlet pipe extends to the outside of the tank body.

[0011] Further, the stirring mechanism comprises a motor and a stirring shaft, the motor is installed on the outer wall of the tank body, the stirring shaft is located in the interior of the tank body, one end of the stirring shaft is in transmission connection with the output end of the motor through the tank body, and the surface of the stirring shaft is uniformly distributed with a plurality of stirring blades.

[0012] Further, the tank body is fixedly connected with a support frame on the outer wall, and the motor is installed on the support frame.

[0013] Further, the output end of the motor is fixedly connected with a shaft coupling, and the other end of the shaft coupling is fixedly connected with the stirring shaft.

[0014] Further, the upper portion of the sedimentation chamber is communicated with a liquid outlet pipe.

[0015] The beneficial effects of the utility model are:

[0016] By being provided with the stirring mechanism in the first reaction chamber and the second reaction chamber, the sewage and sludge particles can be stirred, the speed of the sewage and the sludge contact can be accelerated, the reaction time can be shortened, and the sewage treatment efficiency can be improved; the circulating pump draws out the sludge-water mixture in the lower portion of the sedimentation chamber through the No. 1 external circulation pipe, the sludge-water mixture is discharged into the annular pipe through the No. 2 external circulation pipe, and is sprayed out through a plurality of liquid holes, so that the mixture at the bottom of the first reaction chamber is in a flowing state, the sludge particles are prevented from depositing, and the sewage treatment efficiency is further improved. BRIEF DESCRIPTION OF DRAWINGS

[0017] In order to more clearly illustrate the technical scheme in the embodiments of the utility model or the prior art, the drawings needed to be used in the embodiments or the prior art description will be briefly introduced as follows, and obviously, the drawings in the following description are only some embodiments of the utility model, and other drawings can be obtained by those skilled in the art without any creative effort on the basis of the drawings.

[0018] Fig. 1 It is a structure schematic view of the utility model sectional view;

[0019] Fig. 2 It is a structure schematic view of another view sectional view of the utility model.

[0020] The names of the components marked in the drawings are as follows:

[0021] 1, tank; 2, first reaction chamber; 3, second reaction chamber; 4, sedimentation chamber; 5, No. 1 external circulation pipe; 6, circulating pump; 7, annular pipe; 8, liquid hole; 9, No. 2 external circulation pipe; 10, water distributor; 11, No. 1 three-phase separator; 12, No. 2 three-phase separator; 13, gas-liquid separator; 14, No. 1 riser pipe; 15, No. 2 riser pipe; 16, circulating pipe; 17, exhaust pipe; 18, liquid inlet pipe; 19, motor; 20, stirring shaft; 21, stirring blade; 22, support frame; 23, coupling; 24, liquid outlet pipe. DETAILED DESCRIPTION

[0022] In order to further illustrate the technical means and effects taken by the present application to achieve the predetermined practical new type purposes, the specific embodiments, structures, features and effects according to the present application will be described in detail as follows in combination with the drawings and preferred embodiments.

[0023] As Figs. 1-2As shown, an anaerobic reactor water distribution and circulating stirring device, comprising a tank body 1, the inside of the tank body 1 is provided with a water distributor 10, a No. 1 three-phase separator 11 and a No. 2 three-phase separator 12, the water distributor 10 is located at the bottom of the inside of the tank body 1, the water distributor 10 and the No. 1 three-phase separator 11 form a first reaction chamber 2, the No. 1 three-phase separator 11 and the No. 2 three-phase separator 12 form a second reaction chamber 3, and the No. 2 three-phase separator 12 and the top of the inside of the tank body 1 form a sedimentation chamber 4, the first reaction chamber 2, the second reaction chamber 3 and the sedimentation chamber 4 are arranged in sequence from bottom to top, the top of the tank body 1 is provided with a gas-liquid separator 13, the No. 1 three-phase separator 11 communicates with the gas-liquid separator 13 through a No. 1 riser 14, the No. 2 three-phase separator 12 communicates with the gas-liquid separator 13 through a No. 2 riser 15, and the water distributor 10 communicates with the gas-liquid separator 13 through an internal circulation pipe 16, the water distributor 10 uniformly distributes the sewage, then the sewage and the sludge in the first reaction chamber 2 are mixed and contacted, the organic matter is degraded by the action of anaerobic bacteria to produce biogas, the sewage, the sludge and the biogas continue to rise into the No. 1 three-phase separator 11, the biogas and the liquid enter the gas-liquid separator 13 through the No. 1 riser 14, the separated sludge-water mixture flows back to the water distributor 10 through the internal circulation pipe 16, and after being uniformly distributed again by the water distributor 10, the sludge-water mixture continues to be mixed with the sludge to realize internal circulation of the sludge-water mixture, after the sewage enters the second reaction chamber 3, the sewage continues to be mixed and contacted with the sludge to degrade the remaining organic matter in the sewage, the sewage, the sludge and the biogas continue to rise into the No. 2 three-phase separator 12, the biogas and the liquid enter the gas-liquid separator 13 through the No. 2 riser 15 to continue to be separated, and the sewage enters the sedimentation chamber 4 to be separated and precipitated; the top of the gas-liquid separator 13 is communicated with a gas discharge pipe 17 for discharging the separated biogas; the water distributor 10 is communicated with a liquid inlet pipe 18, the other end of the liquid inlet pipe 18 extends to the outside of the tank body 1, and the sewage is discharged into the water distributor 10 through the liquid inlet pipe 18; the upper part of the sedimentation chamber 4 is communicated with a liquid discharge pipe 24, and the clear water separated from the sludge-water mixture is discharged through the liquid discharge pipe 24;

[0024] The lower part of sedimentation chamber 4 is connected to external circulation pipe 5 (No. 1), and the other end of external circulation pipe 5 is connected to circulation pump 6. An annular pipe 7 is provided along the bottom edge of the first reaction chamber 2. Several liquid holes 8 are evenly distributed on the inner side of the annular pipe 7. The discharge port of circulation pump 6 is connected to external circulation pipe 9 (No. 2). The other end of external circulation pipe 9 passes through tank 1 and connects to annular pipe 7. Circulation pump 6 draws the settled sludge-water mixture into external circulation pipe 5, then through external circulation pipe 9 into annular pipe 7, and sprays it out through several liquid holes. This keeps the mixture at the bottom of the first reaction chamber 2 in a flowing state, preventing sludge particles from settling. Through multiple cycles of degradation, the wastewater treatment effect is improved. The first reaction chamber 2 and the second reaction chamber 3... Each tank is equipped with an internal stirring mechanism, which includes a motor 19 and a stirring shaft 20. A support frame 22 is fixedly connected to the outer wall of the tank 1. The motor 19 is mounted on the support frame 22. The stirring shaft 20 is located inside the tank 1. Several stirring blades 21 are evenly distributed on the surface of the stirring shaft 20. A coupling 23 is fixedly connected to the output end of the motor 19. One end of the stirring shaft 20 passes through the tank 1 and is fixedly connected to the other end of the coupling 23. The motor 19 drives the stirring shaft 20 to rotate, and the stirring shaft 20 drives the stirring blades to rotate, thereby stirring the sewage and sludge particles in the first reaction chamber 2 and the second reaction chamber, accelerating the contact speed between sewage and sludge, shortening the reaction time, and improving sewage treatment efficiency.

[0025] Working principle:

[0026] like Figs. 1-2 As shown, when the anaerobic reactor's water distribution and circulating stirring device is in use, wastewater is first discharged into the water distributor 10 through the inlet pipe 18. The water distributor 10 distributes the wastewater evenly. Then, the wastewater mixes and contacts with the sludge in the first reaction chamber 2. Through the action of anaerobic bacteria, organic matter is degraded to produce biogas. The wastewater, sludge, and biogas continue to rise and enter the No. 1 three-phase separator 11. The biogas and liquid enter the gas-liquid separator 13 through the No. 1 riser pipe 14. The separated mud-water mixture flows back to the water distributor 10 through the internal circulation pipe 16. After being evenly distributed again by the water distributor 10, it continues to mix with the sludge, realizing the internal circulation of the mixture. After entering the second reaction chamber 3, the wastewater continues to mix and contact with the sludge. The remaining organic matter in the wastewater is degraded. The wastewater, sludge, and biogas continue to rise and enter the No. 2 three-phase separator 12. The biogas and liquid enter the gas-liquid separator 13 through the No. 2 riser pipe 15 for further separation. The wastewater enters the sedimentation chamber 4 for sedimentation and separation. The biogas separated in the gas-liquid separator 13 is discharged through the exhaust pipe 17. The clear water separated in the sedimentation chamber 4 is discharged through the drain pipe 24. The sludge-water mixture after sedimentation is pumped into the No. 1 external circulation pipe 5 by the circulation pump 6, and then enters the ring pipe 7 through the No. 2 external circulation pipe 9. It is sprayed out through several liquid holes, which keeps the mixture at the bottom of the first reaction chamber 2 in a flowing state and avoids the sedimentation of sludge particles. Through multiple cycles of degradation, the wastewater treatment effect can be improved.

[0027] The above merely describes preferred embodiments of the present application and is not intended to limit the present application in any form. Although the present application has been disclosed with preferred embodiments, it is not intended to limit the present application. Any person skilled in the art can make minor changes or modifications to the disclosed technical content without departing from the technical solution of the present application to obtain equivalent embodiments. Any modification, equivalent change and modification made to the above embodiments based on the technical essence of the present application without departing from the technical solution of the present application still fall within the scope of the technical solution of the present application.

Claims

1. An anaerobic reactor water distribution and circulation stirring device comprising a tank body (1), characterized in that, The inside of the tank body (1) is sequentially provided with a first reaction chamber (2), a second reaction chamber (3) and a sedimentation chamber (4) from bottom to top, the lower part of the sedimentation chamber (4) is communicated with a No. 1 external circulation pipe (5), the other end of the No. 1 external circulation pipe (5) is communicated with a circulating pump (6), the edge of the bottom of the first reaction chamber (2) is provided with an annular pipe (7), the inner side of the annular pipe (7) is uniformly distributed with a plurality of liquid holes (8), the liquid outlet of the circulating pump (6) is communicated with a No. 2 external circulation pipe (9), the other end of the No. 2 external circulation pipe (9) penetrates through the tank body (1) and is communicated with the annular pipe (7), the inside of the first reaction chamber (2) and the second reaction chamber (3) is provided with a stirring mechanism.

2. The water distribution and circulation stirring device for an anaerobic reactor according to claim 1, characterized in that, The inside of the tank body (1) is mounted with a water distributor (10), a No. 1 three-phase separator (11) and a No. 2 three-phase separator (12), the water distributor (10) is located at the bottom of the inside of the tank body (1), the first reaction chamber (2) is between the water distributor (10) and the No. 1 three-phase separator (11), the second reaction chamber (3) is between the No. 1 three-phase separator (11) and the No. 2 three-phase separator (12), and the sedimentation chamber (4) is between the No. 2 three-phase separator (12) and the top of the inside of the tank body (1).

3. The water distribution and circulation stirring device for anaerobic reactor according to claim 2, characterized in that, The top of the tank body (1) is mounted with a gas-liquid separator (13), the No. 1 three-phase separator (11) is communicated with the gas-liquid separator (13) through a No. 1 riser pipe (14), the No. 2 three-phase separator (12) is communicated with the gas-liquid separator (13) through a No. 2 riser pipe (15), and the water distributor (10) is communicated with the gas-liquid separator (13) through an internal circulation pipe (16).

4. The water distribution and circulation stirring device for anaerobic reactor according to claim 3, characterized in that, The top of the gas-liquid separator (13) is communicated with a gas discharge pipe (17).

5. The water distribution and circulation stirring device for anaerobic reactor according to claim 2, characterized in that, The water distributor (10) is communicated with a liquid inlet pipe (18), and the other end of the liquid inlet pipe (18) extends to the outside of the tank body (1).

6. The water distribution and circulation stirring device for anaerobic reactor according to claim 1, characterized in that, The stirring mechanism comprises a motor (19) and a stirring shaft (20), the motor (19) is mounted on the outer wall of the tank body (1), the stirring shaft (20) is located in the inside of the tank body (1), one end of the stirring shaft (20) is drivingly connected with the output end of the motor (19) through the tank body (1), and the surface of the stirring shaft (20) is uniformly distributed with a plurality of stirring blades (21).

7. The water distribution and circulation stirring device for anaerobic reactor according to claim 6, characterized in that, The outer wall of the tank body (1) is fixedly connected with a support frame (22), and the motor (19) is mounted on the support frame (22).

8. The water distribution and circulation stirring device for anaerobic reactor according to claim 6, characterized in that, The output end of the motor (19) is fixedly connected with a shaft coupling (23), and the other end of the shaft coupling (23) is fixedly connected with the stirring shaft (20).

9. The water distribution and circulation stirring device for anaerobic reactor according to claim 1, characterized in that, The upper part of the sedimentation chamber (4) is communicated with a liquid discharge pipe (24).

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