Novel complete mixing type anaerobic reactor

Abstract

The utility model discloses a novel complete mixing type anaerobic reactor and relates to the technical field of sewage treatment. The device comprises a first barrel, a second barrel, an overflow weir, a stirring motor and a water seal tank, the second barrel is fixed to the upper portion of the peripheral face of the first barrel, the bottom end of the second barrel is conical, water distribution holes are formed in the upper portion of the peripheral face of the first barrel in an annular array mode, and the bottoms of the water distribution holes are aligned to the joint of the first barrel and the second barrel. An overflow weir is fixed to the edge of the upper portion of the peripheral face of the first barrel, sludge conveying openings are formed in the bottom end of the overflow weir in an annular array mode, the top end of the second barrel is closed, a stirring motor is fixed to the center of the top end of the second barrel, and a water seal tank is fixed to one side of the stirring motor. By arranging the barrel I, the barrel II, the overflow weir, the stirring motor and the water seal tank, the problems that the mixing efficiency between active sludge and water is not high enough in the anaerobic biological treatment process and the utilization of biogas generated by anaerobic treatment is not convenient enough are solved.

Description

Technical Field

[0001] The utility model belongs to the technical field of sewage treatment, in particular to a novel completely mixed anaerobic reactor. Background Art

[0002] The anaerobic biological treatment process has the characteristics of low energy consumption, low sludge production, high treatment efficiency, small amount of nutrient addition, and available resources. The completely mixed anaerobic reactor is one of its methods. Compared with other reactors, the main feature of the completely mixed anaerobic reactor is that it can effectively treat high-suspended solids and high-concentration organic wastewater. It is suitable for animal husbandry, pulp and paper industry, fermentation and brewing, pharmaceutical industry, textile dyeing and finishing and other industries. It overcomes the problems of traditional anaerobic reactors such as sludge disintegration caused by high suspended solids, complex water distribution methods, three-phase separation separators and pipelines blocked and difficult to maintain, but it still has the following disadvantages in actual use:

[0003] In the process of anaerobic biological treatment, the newly entering sewage needs to be fully mixed with the treated sewage, so that the sewage and the sludge in the reactor are fully mixed. When mixing, the mixing is directly mixed by stirring. During the mixing process, the sludge mixing is easy to be separated by water, resulting in insufficient mixing rate and insufficient mixing.

[0004] During the anaerobic biological treatment process, biogas will be produced in the sewage. For the convenience of treatment, the biogas is directly discharged. However, the main component of biogas is methane, which can be used as fuel. During anaerobic treatment, the biogas has an unpleasant odor and contains more impurities, which affects the convenience of biogas utilization. Utility Model Content

[0005] The utility model aims to provide a novel completely mixed anaerobic reactor, which solves the problems of insufficient mixing efficiency between activated sludge and water and inconvenient utilization of biogas produced by anaerobic treatment during anaerobic biological treatment by arranging a cylinder body 1, a cylinder body 2, an overflow weir, a stirring motor and a water seal tank.

[0006] In order to solve the above technical problems, the utility model is realized by the following technical solutions:

[0007] The utility model is a novel completely mixed anaerobic reactor, comprising a cylinder body one, a cylinder body two, an overflow weir, a stirring motor and a water seal groove. The cylinder body two is fixed to the upper part of the outer peripheral surface of the cylinder body one, the bottom end of the cylinder body two is conical, the upper part of the outer peripheral surface of the cylinder body one is provided with water diversion holes in an annular array, the bottom of the water diversion holes is aligned with the connection between the cylinder body one and the cylinder body two, the overflow weir is fixed at the edge of the upper part of the outer peripheral surface of the cylinder body one, the bottom end of the overflow weir is provided with mud delivery ports in an annular array, the top end of the cylinder body two is closed, and the stirring motor is fixed at the center of the top end of the cylinder body two, and the water seal groove is fixed on one side of the stirring motor. When working, the cylinder body one and the cylinder body two are fixed to each other and connected together by the cylinder body one and the cylinder body two, so that during the operation, after sewage is input into the cylinder body one, water is transported to the overflow weir, and sludge in the sewage falls into the lower part of the cylinder body two, the stirring shaft is driven to rotate by the stirring motor, and the biogas entering therein is scrubbed through the water seal groove.

[0008] Furthermore, a circulating water outlet pipe is fixedly connected to one side of the cylinder below the bottom end of the second cylinder, and the circulating water outlet pipe is arranged at the bottom edge of the second cylinder. A thermometer is fixedly connected to the middle part of one side of the cylinder, and the temperature of the sewage in the first cylinder is measured by the thermometer.

[0009] Furthermore, the lower part of the outer circumferential surface of the cylinder is fixedly connected with a manhole, a mud discharge pipe opening, a water inlet pipe opening and a circulating water inlet pipe in sequence. The manhole, mud discharge pipe opening, water inlet pipe opening and the circulating water inlet pipe are staggered with each other, and the cylinder provides personnel with an entry into the cylinder through the manhole.

[0010] Furthermore, a separator ring is fixed on the edge of the outer peripheral surface of the overflow weir near the bottom end, and the separator ring is fixed on the inner wall of the second cylinder. A water outlet is fixedly connected to the second peripheral side of the cylinder between the top of the separator ring and the top of the overflow weir, and the overflow weir discharges the purified sewage through the water outlet via the separator ring.

[0011] Furthermore, a stirring shaft is fixed to the output end of the stirring motor, the stirring shaft is inserted through the top of the cylinder one, and the bottom end of the stirring shaft is rotatably connected to the inner bottom of the cylinder one, and three stirring impellers are equidistantly fixed on the circumference of the stirring shaft in the cylinder one below the cylinder two. The stirring motor drives the stirring shaft to rotate, drives the stirring impeller to rotate, stirs the sewage in the cylinder one, and fully stirs the sewage and sludge.

[0012] Furthermore, a pressure valve is fixedly connected to the center of the top of the water seal groove, an inverted U-shaped exhaust pipe is fixedly connected through the top of the water seal groove on the side of the pressure valve close to the driving motor, and a biogas pipe is fixedly connected to the top of the water seal groove on the side of the pressure valve away from the driving motor. The water seal groove temporarily discharges the excess pressure generated by the biogas passing therethrough through the pressure valve.

[0013] The utility model has the following beneficial effects:

[0014] The utility model solves the problem of insufficient mixing efficiency between active sludge and water in the process of anaerobic biological treatment by arranging a cylinder body 1, a cylinder body 2, an overflow weir and a stirring motor. The circulating water inlet pipe is connected with the pipeline at the output end of an external circulating pump, and the circulating water outlet pipe is connected with the pipeline at the input end of the external circulating pump. The external circulating pump transports water in the circulating water outlet pipe to the circulating water inlet pipe, so that the sewage in the cylinder body 1 is externally circulated, and the water in the cylinder body 1 is quickly circulated. During the circulation process, the sewage and sludge are stirred by the stirring shaft and the stirring impeller driven by the stirring motor, so that the sludge and sewage are fully in contact, thereby increasing the uniformity of microbial arrangement in the cylinder body 1.

[0015] The utility model solves the problem of inconvenient utilization of biogas generated by anaerobic treatment by arranging a cylinder body one, a cylinder body two, a stirring motor and a water seal tank. When the biogas in the cylinder body one rises, it is collected at the top of the cylinder body two. When the biogas generated in the cylinder body two below the overflow weir rises, the biogas rises through the mud delivery port on the overflow weir. Finally, all the biogas is collected at the upper inner part of the cylinder body two, transported to the water seal tank through a U-shaped exhaust pipe, and after being washed in the water seal tank, it is transported to the biogas processing equipment through a biogas pipe, and then the biogas is utilized, making the utilization of biogas more convenient. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the drawings required for describing the embodiments are briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0017] Figure 1 It is a partially cutaway structural stereogram of a new type of completely mixed anaerobic reactor;

[0018] Figure 2 It is a three-dimensional diagram of the cylinder structure;

[0019] Figure 3 It is a three-dimensional diagram of the second structure of the cylinder;

[0020] Figure 4 It is a three-dimensional diagram of the overflow weir structure;

[0021] Figure 5 This is a three-dimensional diagram of the stirring motor structure;

[0022] Figure 6 It is a three-dimensional diagram of the water seal tank structure;

[0023] Figure 7 This is a complete diagram of a new type of completely mixed anaerobic reactor.

[0024] Reference numerals:

[0025] 1. Cylinder body 1; 101. Water distribution hole; 102. Circulating water outlet pipe; 103. Circulating water inlet pipe; 104. Thermometer; 105. Manhole; 106. Mud discharge pipe outlet; 107. Water inlet pipe outlet; 2. Cylinder body 2; 201. Water outlet pipe outlet; 3. Overflow weir; 301. Mud delivery port; 302. Separation ring; 4. Stirring motor; 401. Stirring shaft; 402. Stirring impeller; 5. Water seal groove; 501. Pressure valve; 502. U-shaped exhaust pipe; 503. Biogas pipe. DETAILED DESCRIPTION

[0026] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model. Specific embodiment 1

[0027] See also Figure 1-7 The utility model is a novel completely mixed anaerobic reactor, comprising a cylinder 1, a cylinder 2, an overflow weir 3, a stirring motor 4 and a water seal groove 5. The cylinder 2 is fixed to the upper part of the outer circumference of the cylinder 1. The cylinder 1 contains water to be treated, and the cylinder 2 provides a sewage discharge function in the cylinder 1. The bottom end of the cylinder 2 is conical, and the upper part of the outer circumference of the cylinder 1 is provided with water diversion holes 101 in a circular array. The bottom of the water diversion holes 101 is aligned with the connection between the cylinder 1 and the cylinder 2. The cylinder 2 is conical, so that the sludge output from the overflow weir 3 enters its lower part and passes through the upper part of the cylinder 1. The water diversion hole 101 flows into the cylinder 1 to prevent sludge from being discharged from the outlet pipe 201. An overflow weir 3 is fixed at the edge of the upper part of the outer peripheral surface of the cylinder 1. The bottom end of the overflow weir 3 is provided with a mud delivery port 301 in a ring array. When the sewage overflows from the cylinder 1, the sludge in the sewage is transported to the conical position in the lower part of the cylinder 2 through the mud delivery port 301 on the overflow weir 3. The top of the cylinder 2 is closed, and a stirring motor 4 is fixed at the center of the top of the cylinder 2. The stirring shaft 401 is driven to rotate by the stirring motor 4. A water seal groove 5 is fixed on one side of the stirring motor 4, and the biogas entering therein is scrubbed through the water seal groove 5.

[0028] Specifically, a circulating water outlet pipe 102 is fixedly connected to the periphery of cylinder body 1 below the bottom end of cylinder body 2, and the circulating water outlet pipe 102 is arranged at the bottom edge of cylinder body 2. A thermometer 104 is fixedly connected to the middle of the periphery of cylinder body 1, and cylinder body 1 measures the temperature of the sewage therein through the thermometer 104.

[0029] Furthermore, a manhole 105, a mud discharge pipe port 106, a water inlet pipe port 107 and a circulating water inlet pipe 103 are fixedly connected in sequence at the lower portion of the outer peripheral surface of the cylinder body 1. The manhole 105, the mud discharge pipe port 106, the water inlet pipe port 107 and the circulating water inlet pipe 103 are staggered with each other. The manhole 105 is closed by an external mounting structure and opened during maintenance to provide personnel with access to the cylinder body 1. The circulating water inlet pipe 103 is connected to the pipeline at the output end of the external circulating pump, and the circulating water outlet pipe 102 is connected to the pipeline at the input end of the external circulating pump. The external circulating pump transports the water in the circulating water outlet pipe 102 to the circulating water inlet pipe 103, so that the sewage in the cylinder body 1 is externally circulated, and the sludge in the cylinder body 1 is continuously discharged through the mud discharge pipe. The end of the water inlet pipe port 107 away from the cylinder body 1 is connected to the sewage input pipeline, so that the sewage is transported to the cylinder body 1.

[0030] Furthermore, a separating ring 302 is fixed on the edge of the outer peripheral surface of the overflow weir 3 near the bottom end, and the separating ring 302 is fixed on the inner wall of the cylinder body 2. A water outlet pipe 201 is fixedly connected to the peripheral side of the cylinder body 2 between the top of the separating ring 302 and the top of the overflow weir 3. The overflow weir 3 separates the output water through the separating ring 302, and the purified water overflowing from the overflow weir 3 to the separating ring 302 is output through the water outlet pipe 201.

[0031] The operation process of this embodiment is as follows: when working, first, the sewage is transported to the cylinder body 1 through the water inlet pipe 107. After entering the cylinder body 1, the sewage is treated through the anaerobic reaction of microorganisms in the sludge in the cylinder body 1, and then transported upward. It is connected with the pipeline at the output end of the external circulation pump through the circulating water inlet pipe 103, and the circulating water outlet pipe 102 is connected with the pipeline at the input end of the external circulation pump. The external circulation pump transports the water in the circulating water outlet pipe 102 to the circulating water inlet pipe 103, so that the sewage in the cylinder body 1 is externally circulated, and the water in the cylinder body 1 is quickly circulated. During the circulation, the sludge and sewage are fully in contact, which increases the uniformity of the microbial distribution in the cylinder body 1. The overflow weir 3 separates the output water through the separation ring 302, and the overflow weir 3 overflows to the separation ring 302 through the outlet pipe 201, and the purified water is output. Specific embodiment 2

[0032] See also Figure 1 , 2, 5, 6, on the basis of the specific embodiment 1, a stirring shaft 401 is fixed to the output end of the stirring motor 4, the stirring shaft 401 is inserted through the top of the cylinder 1, and the bottom end of the stirring shaft 401 is rotatably connected to the inner bottom of the cylinder 1, and three stirring impellers 402 are equidistantly fixed around the stirring shaft 401 in the cylinder 1 below the cylinder 2, the stirring motor 4 drives the stirring shaft 401 to rotate, and drives the stirring impeller 402 to rotate, and when the stirring impeller 402 rotates, it drives the sewage in the cylinder 1 to stir, so that the sewage is fully and evenly stirred.

[0033] Specifically, a pressure valve 501 is fixedly connected to the center of the top of the water seal groove 5, an inverted U-shaped exhaust pipe 502 is fixedly passed through the top of the water seal groove 5 on the side of the pressure valve 501 close to the driving motor, and a biogas pipe 503 is fixedly connected to the top of the water seal groove 5 on the side of the pressure valve 501 away from the driving motor. The end of the biogas pipe 503 away from the water seal groove 5 is connected to the biogas processing equipment. When the biogas in the cylinder 1 rises, it is collected at the top of the cylinder 2 2. When the biogas generated in the cylinder 2 2 below the overflow weir 3 rises, the biogas rises through the mud delivery port 301 on the overflow weir 3. Finally, all the biogas is collected in the upper part of the cylinder 2 2, and is transported to the water seal groove 5 through the U-shaped exhaust pipe 502. After being washed in the water seal groove 5, it is transported to the biogas processing equipment through the biogas pipe 503. When the gas pressure in the water seal groove 5 increases, the biogas in the water seal groove 5 is temporarily discharged through the pressure valve 501.

[0034] The operation process of this embodiment is as follows: when working, start the stirring motor 4, drive the stirring shaft 401 to rotate, and drive the stirring impeller 402 to rotate. Through the rotation of the stirring impeller 402, the sewage and activated sludge entering the cylinder body 1 are fully mixed to perform anaerobic purification. When the biogas in the cylinder body 1 rises, it is collected at the top of the cylinder body 2. When the biogas generated in the cylinder body 2 below the overflow weir 3 rises, the biogas rises through the mud delivery port 301 on the overflow weir 3. Finally, all the biogas is collected in the upper part of the cylinder body 2, and is transported to the water seal tank 5 through the U-shaped exhaust pipe 502. After being washed in the water seal tank 5, it is transported to the biogas processing equipment through the biogas pipe 503, and then the biogas is utilized. When the gas pressure in the water seal tank 5 increases, the biogas in the water seal tank 5 is temporarily discharged through the pressure valve 501.

[0035] In the description of this specification, the description with reference to the terms "one embodiment", "example", "specific example", etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0036] The preferred embodiments of the utility model disclosed above are only used to help explain the utility model. The preferred embodiments do not describe all the details in detail, nor do they limit the utility model to the specific implementation methods described. Obviously, many modifications and changes can be made according to the content of this specification. This specification selects and specifically describes these embodiments in order to better explain the principles and practical applications of the utility model, so that technicians in the relevant technical field can well understand and use the utility model. The utility model is limited only by the claims and their full scope and equivalents.

Claims

1. A novel completely mixed anaerobic reactor, comprising a first cylinder (1), a second cylinder (2), an overflow weir (3), a stirring motor (4) and a water seal tank (5), characterized in that: The upper portion of the outer circumference of the cylinder body 1 (1) is fixed with the cylinder body 2 (2), the bottom end of the cylinder body 2 (2) is arranged in a conical shape, the upper portion of the outer circumference of the cylinder body 1 (1) is provided with water diversion holes (101) in an annular array, the bottom of the water diversion holes (101) is aligned with the connection between the cylinder body 1 (1) and the cylinder body 2 (2), an overflow weir (3) is fixed at the edge of the upper portion of the outer circumference of the cylinder body 1 (1), the bottom end of the overflow weir (3) is provided with mud delivery ports (301) in an annular array, the top end of the cylinder body 2 (2) is arranged in a closed manner, and a stirring motor (4) is fixed at the center of the top end of the cylinder body 2 (2), and a water seal groove (5) is fixed on one side of the stirring motor (4).

2. A novel completely mixed anaerobic reactor according to claim 1, characterized in that: A circulating water outlet pipe (102) is fixedly connected to the periphery of the cylinder body one (1) below the bottom end of the cylinder body two (2), and the circulating water outlet pipe (102) is arranged at the bottom edge of the cylinder body two (2). A temperature measuring device (104) is fixedly connected to the middle of the periphery of the cylinder body one (1).

3. A novel completely mixed anaerobic reactor according to claim 1, characterized in that: The lower portion of the outer peripheral surface of the cylinder body 1 (1) is fixedly connected in sequence with a manhole (105), a mud discharge pipe opening (106), a water inlet pipe opening (107) and a circulating water inlet pipe (103); the manhole (105), the mud discharge pipe opening (106), the water inlet pipe opening (107) and the circulating water inlet pipe (103) are staggered with each other.

4. A novel completely mixed anaerobic reactor according to claim 1, characterized in that: A separation ring (302) is fixed at the edge of the outer peripheral surface of the overflow weir (3) close to the bottom end, and the separation ring (302) is fixed on the inner wall of the second cylinder body (2). A water outlet pipe (201) is fixedly connected to the peripheral side of the second cylinder body (2) between the top of the separation ring (302) and the top of the overflow weir (3).

5. A novel completely mixed anaerobic reactor according to claim 1, characterized in that: A stirring shaft (401) is fixed to the output end of the stirring motor (4), the stirring shaft (401) is inserted through the top end of the cylinder body (1), and the bottom end of the stirring shaft (401) is rotatably connected to the inner bottom of the cylinder body (1), and three stirring impellers (402) are fixed at equal distances around the stirring shaft (401) in the cylinder body (1) below the cylinder body (2).

6. A novel completely mixed anaerobic reactor according to claim 1, characterized in that: A pressure valve (501) is fixedly connected to the center of the top of the water seal groove (5), an inverted U-shaped exhaust pipe (502) is fixedly passed through the top of the water seal groove (5) on the side of the pressure valve (501) close to the drive motor, and a biogas pipe (503) is fixedly connected to the top of the water seal groove (5) on the side of the pressure valve (501) away from the drive motor.

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