High concentration wastewater high-efficiency anaerobic treatment device

Abstract

The utility model relates to wastewater treatment technical field, concretely is a kind of high-concentration wastewater efficient anaerobic treatment device, including pretreatment body, body and filter, the liquid inlet pipe is established in the pretreatment body far from the side of body, the liquid outlet pipe is fixedly installed in the pretreatment body side close to body, the filter of both ends of liquid inlet pipe and liquid outlet pipe both sides fixed installation is located in the pretreatment body, the end of filter is fixedly interconnected with the end of liquid outlet pipe, first heat exchange body is fixedly installed in the side of filter far from liquid outlet pipe, and first heat exchange body coaxial heart is located in filter interior;Solved the problem that the activity balance of bacterial population is easily influenced due to temperature fluctuation when the high-concentration wastewater of prior art is anaerobically treated, thereby easily leading to the problem of reducing processing efficiency.

Description

Technical Field

[0001] This utility model relates to the field of wastewater treatment technology, specifically a high-efficiency anaerobic treatment device for high-concentration wastewater. Background Technology

[0002] High-concentration wastewater has a high organic content, and if it is directly treated aerobically, it is easy to cause microbial hypoxia and mass death, leading to the collapse of the entire system. In addition, the energy consumption of aeration will soar, resulting in excessive operating costs. Therefore, high-concentration wastewater is usually treated anaerobically first to lay the foundation for subsequent treatment.

[0003] In the process of anaerobic treatment of high-concentration wastewater, anaerobic microorganisms are extremely sensitive to temperature fluctuations. Sudden rises and falls in temperature can disrupt the activity and balance of the microbial community, which can easily lead to a decrease in the efficiency of anaerobic treatment.

[0004] Therefore, this invention provides a high-efficiency anaerobic treatment device for high-concentration wastewater to solve the above problems. Utility Model Content

[0005] The technical problem to be solved by this utility model is that the existing high-concentration wastewater is easily affected by temperature fluctuations during anaerobic treatment, which can affect the activity balance of the bacterial community and thus easily lead to a decrease in treatment efficiency.

[0006] This utility model provides the following technical solution: a high-efficiency anaerobic treatment device for high-concentration wastewater, comprising a pretreatment body, a main body, and a filter body. An inlet pipe is provided on the side of the pretreatment body away from the main body, and an outlet pipe is fixedly installed on the side of the pretreatment body close to the main body. Two ends of the filter body are fixedly installed on both sides of the inlet and outlet pipes in the pretreatment body. One end of the filter body is fixedly connected to the end of the outlet pipe. A first heat exchanger is fixedly installed on the side of the filter body away from the outlet pipe, and the first heat exchanger is coaxially located inside the filter body.

[0007] Preferably, the filter body is divided into a sealing cylinder section and a filter cylinder section. The end of the liquid outlet pipe is fixedly connected to the sealing cylinder section, the end of the sealing cylinder section away from the liquid outlet pipe is fixedly connected to the filter cylinder section, and the other end of the filter cylinder section is fixedly connected to the inner wall of the pretreatment body.

[0008] Preferably, the first heat exchanger extends into the interior of the sealed cylinder portion of the filter.

[0009] Preferably, fins are fixedly mounted on the surface of the first heat exchanger.

[0010] Preferably, a temperature measuring element is fixedly installed on the surface of the body located at the end of the liquid outlet pipe.

[0011] Preferably, a drive motor is fixedly installed on the outer surface of the pretreatment body on the side away from the liquid outlet pipe, a drive gear is fixedly installed on the output shaft of the drive motor, a ring is rotatably fitted into the inner wall of the pretreatment body, a toothed ring is fixedly installed on the outer surface of the ring outside the pretreatment body, and a stirring part is fixedly installed on the end surface of the ring inside the pretreatment body.

[0012] Preferably, the ring portion is coaxial with the filter body, and a brush portion is fixedly installed on the inner surface of the stirring portion near the axial direction of the ring portion, with the brush portion located on the outer surface of the filter body.

[0013] Preferably, a jacket is fixedly installed on the outer surface of the liquid outlet pipe, and a second heating element is spirally arranged inside the jacket.

[0014] The beneficial effects of this utility model are as follows: 1. By combining the filter body and the first heat exchanger, this utility model can filter out non-decomposable suspended solids from high-concentration wastewater, avoid system blockage, ensure stable operation, and at the same time exchange heat with high-concentration wastewater to control the temperature of high-concentration wastewater. This is beneficial to maintaining the stability of the microbial population structure, thereby ensuring the high metabolic activity of anaerobic microorganisms and improving the removal efficiency of organic pollutants.

[0015] 2. In this utility model, while ensuring the efficiency of anaerobic treatment through filtration and heat exchange, the high-concentration wastewater can also be stirred by the stirring part, thereby preventing suspended solids from clogging the filter body and enhancing the filtration performance while increasing the fluidity. This facilitates breaking the temperature boundary layer and enhancing the heat exchange effect. At the same time, the stirring body can also drive the brush part to rotate synchronously and clean the surface of the filter cylinder, thereby further avoiding clogging of the filter cylinder surface and affecting the filtration effect. Attached Figure Description

[0016] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0017] Figure 1 This is a schematic diagram of the overall front cross-sectional structure of this utility model; Figure 2 This utility model Figure 1 A magnified structural diagram of A in the middle; Figure 3 This utility model Figure 1 A magnified structural diagram of B in the diagram.

[0018] In the diagram: 1. Pretreatment body; 11. Inlet pipe; 12. Outlet pipe; 2. Main body; 3. Filter body; 31. Sealing cylinder; 32. Filter cylinder; 4. First heat exchanger; 5. Fins; 6. Temperature measuring element; 7. Drive motor; 71. Drive gear; 72. Ring; 73. Gear ring; 74. Stirring section; 75. Brush section; 8. Jacket; 81. Second heat exchanger. Detailed Implementation

[0019] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. Therefore, the following detailed description of the embodiments of this utility model is not intended to limit the scope of the claimed utility model, but merely represents some embodiments of this utility model. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are within the scope of protection of this utility model.

[0020] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0021] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," "outer," and "back side," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship in which the product of this utility model is conventionally placed during use. These terms are used only for the convenience of describing this utility model and for simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation; therefore, they should not be construed as limitations on this utility model.

[0022] It should also be noted that, in the description of this utility model, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0023] Based on the existing problem that high-concentration wastewater is easily affected by temperature fluctuations during anaerobic treatment, leading to a decrease in the activity balance of the bacterial community and thus a reduction in treatment efficiency, such as... Figures 1 to 3As shown in the figure, this disclosure provides a high-efficiency anaerobic treatment device for high-concentration wastewater, including a pretreatment body 1, a main body 2, and a filter body 3. An inlet pipe 11 is provided on the side of the pretreatment body 1 away from the main body 2. An outlet pipe 12 is fixedly installed on the side of the pretreatment body 1 close to the main body 2. The two ends of the filter body 3 are fixedly installed on both sides of the inlet pipe 11 and the outlet pipe 12 in the pretreatment body 1. One end of the filter body 3 is fixedly connected to the end of the outlet pipe 12. A first heat exchanger 4 is fixedly installed on the side of the pretreatment body 1 away from the outlet pipe 12. The heat exchanger is coaxially located inside the filter body 3.

[0024] like Figures 1 to 3 As shown, the effluent pipe 12 connects to the bottom of the main body 2. The main body 2 adopts any existing structure or equipment capable of anaerobic treatment, such as an existing upflow anaerobic sludge blanket. An anaerobic reaction zone and a three-phase separator are fixedly installed inside the main body 2 above the effluent pipe 12.

[0025] In the process of anaerobic treatment of high-concentration wastewater, the high-concentration wastewater enters the pretreatment body 1 through the inlet pipe 11, and then the high-concentration wastewater comes into contact with the first heat exchanger 4 for heat exchange, thereby adjusting and maintaining the temperature stability of the high-concentration wastewater. Then, it enters the main body 2 through the outlet pipe 12 for anaerobic treatment, which helps to maintain the stability of the microbial population structure, thereby ensuring the high metabolic activity of anaerobic microorganisms and improving the removal efficiency of organic pollutants.

[0026] like Figure 2 and 3 As shown, the filter body 3 is divided into a sealing cylinder part 31 and a filter cylinder part 32. The end of the liquid outlet pipe 12 is fixedly connected to the sealing cylinder part 31, the end of the sealing cylinder part 31 away from the liquid outlet pipe 12 is fixedly connected to the filter cylinder part 32, and the other end of the filter cylinder part 32 is fixedly connected to the inner wall of the pretreatment body 1.

[0027] like Figure 2 and 3 As shown, the sealing cylinder 31 is a complete cylindrical structure, thereby guiding the flow of high-concentration wastewater. The filter cylinder 32 adopts an existing filtration structure, such as a filter screen cylinder; thus, the filter cylinder 32 filters the high-concentration wastewater, thereby removing non-degradable coarse suspended solids contained in the high-concentration wastewater, such as gravel, metal fragments, plastic fragments, cloth strips, hair, meat scraps, or pulp fibers. This helps to avoid system blockage and bacterial inhibition, ensuring stable operation.

[0028] The heat exchanger extends into the interior of the sealed cylinder 31 of the filter body 3, thereby enabling heat exchange between the heat exchanger and the high-concentration wastewater filtered in the filter cylinder 32. Especially during the process of guiding the high-concentration wastewater into the sealed cylinder 31, the heat exchanger extends into the interior of the sealed cylinder 31, thus, through mutual cooperation, the high-concentration wastewater undergoes heat exchange during transportation, which helps to ensure the temperature stability of the high-concentration wastewater, thereby helping to maintain the stability of the microbial population structure, ensuring the high metabolic activity of anaerobic microorganisms, and improving the removal efficiency of organic pollutants.

[0029] It should be noted that the first heat exchanger 4 can be any existing structure or equipment capable of heating or cooling, such as an immersion electric heater or a water-cooled cooler. It can also be a heat exchange tube with a U-shaped structure in which a heating or cooling medium flows inside. Both ends of the U-shaped heat exchange tube are installed through the side wall of the pretreatment body 1 away from the sealing cylinder 31. This is an existing mature technology and will not be elaborated on here.

[0030] like Figure 2 As shown, fins 5 are fixedly installed on the surface of the first heat exchanger 4. The fins 5 enable better and more comprehensive control of the high-concentration wastewater inside the sealing cylinder and pretreatment body 1, thereby improving the temperature control effect of the high-concentration wastewater.

[0031] like Figure 3 As shown, a temperature measuring element 6 is fixedly installed on the surface of the main body 2 at the end of the outlet pipe 12. The temperature measuring element 6 can actively monitor the inlet temperature of high-concentration wastewater, thereby actively adjusting the power of the heat exchanger according to the inlet temperature of high-concentration wastewater, which can further maintain the stability of the microbial population structure, thus ensuring the high metabolic activity of anaerobic microorganisms and improving the removal efficiency of organic pollutants.

[0032] The temperature measuring element 6 employs existing thermocouple temperature sensors, fiber optic temperature sensors, or infrared temperature sensors. The specific methods for using thermocouple temperature sensors, fiber optic temperature sensors, or infrared temperature sensors to control the first heat exchanger 4 are existing and mature technologies, and will not be elaborated upon further. For example, the temperature sensor converts the temperature signal into an electrical signal, which is then controlled by a controller such as a temperature controller or PLC and an actuator such as a relay to control the first heat exchanger 4, such as an immersion electric heater or a water-cooled cooler.

[0033] like Figure 2 As shown, a drive motor 7 is fixedly installed on the outer surface of the pretreatment body 1 on the side away from the liquid outlet pipe 12. A drive gear 71 is fixedly installed on the output shaft of the drive motor 7. A ring portion 72 is rotatably fitted into the inner wall of the pretreatment body 1. A toothed ring 73 is fixedly installed on the outer surface of the ring portion 72 outside the pretreatment body 1. A stirring portion 74 is fixedly installed on the end surface of the ring portion 72 inside the pretreatment body 1.

[0034] During the filtration and temperature adjustment process of high-concentration wastewater, the drive motor 7 is activated to drive the drive gear 71 to rotate. The drive gear 71 then drives the gear ring 73 and the ring part 72 to rotate synchronously. In turn, the ring part 72 drives the stirring part 74 to rotate, thereby stirring the high-concentration wastewater in the pretreatment body 1. This not only prevents suspended solids from clogging the filter body 3 and promotes uniform filtration to improve the filtration effect, but also enhances the fluidity of the high-concentration wastewater, which helps to break the temperature boundary layer and enhance the temperature control effect of the heat exchanger on the high-concentration wastewater.

[0035] like Figure 2 As shown, the ring portion 72 is coaxial with the filter body 3, and a brush portion 75 is fixedly installed on the inner surface of the stirring portion 74 near the axial direction of the ring portion 72. The brush portion 75 is located on the outer surface of the filter body 3.

[0036] During the rotation of the stirring section 74, the stirring section 74 drives the brush section 75 to rotate synchronously, thereby cleaning the surface of the filter cylinder section 32 while stirring, thus preventing suspended matter from clogging the filter body 3 and ensuring the filtration effect.

[0037] The brush section 75 can use existing brushes, or other structures or devices with cleaning functions.

[0038] like Figure 3 As shown, a jacket 8 is fixedly installed on the outer surface of the liquid outlet pipe 12, and a second heating element is spirally arranged inside the jacket 8.

[0039] During the flow of high-concentration wastewater in the outlet pipe 12, the spirally arranged second heat exchanger 81 can heat or cool the high-concentration wastewater in the outlet pipe 12, thereby cooperating with the first heat exchanger 4 to form a step-by-step temperature control, avoiding sudden changes in the physicochemical properties of the high-concentration wastewater caused by sudden temperature changes.

[0040] The second heat exchanger 81 can further improve the temperature control effect on high-concentration wastewater, which is conducive to maintaining the stability of the microbial population structure, thereby ensuring the high metabolic activity of anaerobic microorganisms and improving the removal efficiency of organic pollutants.

[0041] It should be noted that the second heat exchanger 81 can use any existing structure or equipment capable of heating or cooling, such as spirally arranged resistance wires or heat exchange tubes containing heat exchange media such as hot oil or cooling water. Furthermore, the resistance wires and heat exchange tubes can be connected to external functional structures. The specific connection, installation methods, and usage parameters are all existing and very mature technologies, and will not be elaborated on here.

[0042] In the process of treating high-concentration wastewater, the wastewater first enters through the inlet pipe 11. After entering, the wastewater comes into contact with the first heat exchanger 4 for heat exchange and temperature adjustment, and then passes through the filter cylinder 32 into the sealing cylinder 31. This filters out non-decomposable impurities, preventing system blockage and bacterial inhibition, and ensuring stable operation. Simultaneously, the wastewater is transported along the sealing cylinder 31 after filtration. During transport, the first heat exchanger 4 extends into the sealing cylinder 31 to exchange heat with the wastewater, thereby better adjusting its temperature. This helps maintain the temperature stability of the wastewater, which in turn helps maintain the stability of the microbial community structure, ensuring high metabolic activity of anaerobic microorganisms and improving the removal efficiency of organic pollutants.

[0043] During the heat exchange and transport of high-concentration wastewater, the drive motor 7 is activated, driving the drive gear 71 to rotate. This drive gear 71, in turn, drives the gear ring 73 and the ring section 72 to rotate synchronously. The ring section 72 then drives the stirring section 74 to rotate, thus agitating the high-concentration wastewater within the pretreatment body 1. This process prevents suspended solids from clogging the filter body 3 and promotes uniform filtration, improving the filtration effect. Furthermore, it enhances the fluidity of the high-concentration wastewater, which helps break the temperature boundary layer and improves the heat exchanger's temperature control over the wastewater. Simultaneously, the rotation of the stirring section 74 also drives the brush section 75 to rotate synchronously, cleaning the surface of the filter cylinder 32 while agitating, further preventing clogging and ensuring optimal filtration.

[0044] During the transportation of high-concentration wastewater in the outlet pipe 12, the spirally arranged second heat exchanger 81 can heat or cool the high-concentration wastewater in the outlet pipe 12, thereby cooperating with the first heat exchanger 4 to form a step-by-step temperature control, avoiding sudden changes in the physicochemical properties of the high-concentration wastewater caused by sudden temperature changes.

[0045] The high-concentration wastewater eventually enters the main body 2 through the outlet pipe 12 for anaerobic treatment.

[0046] Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A high concentration wastewater high efficiency anaerobic treatment device, comprising a pretreatment body (1), a main body (2) and a filter body (3), characterized in that: An inlet pipe (11) is provided on the side of the pretreatment body (1) away from the main body (2). An outlet pipe (12) is fixedly installed on the side of the pretreatment body (1) close to the main body (2). Two ends of a filter body (3) are fixedly installed on both sides of the inlet pipe (11) and the outlet pipe (12) in the pretreatment body (1). One end of the filter body (3) is fixedly connected to the end of the outlet pipe (12). A first heat exchanger (4) is fixedly installed on the side of the filter body (3) away from the outlet pipe (12). The first heat exchanger (4) is coaxially located inside the filter body (3).

2. The high concentration wastewater high efficiency anaerobic treatment device according to claim 1, characterized in that: The filter body (3) is divided into a sealing cylinder (31) and a filter cylinder (32). The end of the liquid outlet pipe (12) is fixedly connected to the sealing cylinder (31). The end of the sealing cylinder (31) away from the liquid outlet pipe (12) is fixedly connected to the filter cylinder (32). The other end of the filter cylinder (32) is fixedly connected to the inner wall of the pretreatment body (1).

3. The high concentration wastewater high efficiency anaerobic treatment device according to claim 2, characterized in that: The first heat exchanger (4) extends into the interior of the sealed cylinder (31) of the filter (3).

4. The high concentration wastewater high efficiency anaerobic treatment device according to claim 3, characterized in that: Fins (5) are fixedly installed on the surface of the first heat exchanger (4).

5. The high concentration wastewater high efficiency anaerobic treatment device according to claim 4, characterized in that: A temperature measuring element (6) is fixedly installed on the surface of the body (2) at the end of the liquid outlet pipe (12).

6. The high concentration wastewater high efficiency anaerobic treatment device according to claim 5, characterized in that: A drive motor (7) is fixedly installed on the outer surface of the pretreatment body (1) on the side away from the liquid outlet pipe (12). A drive gear (71) is fixedly installed on the output shaft of the drive motor (7). A ring (72) is sealed and rotatably embedded in the inner wall of the pretreatment body (1). A toothed ring (73) is fixedly installed on the outer surface of the ring (72) outside the pretreatment body (1). A stirring part (74) is fixedly installed on the end surface of the ring (72) inside the pretreatment body (1).

7. The high concentration wastewater high efficiency anaerobic treatment device according to claim 6, characterized in that: The ring (72) is coaxial with the filter body (3), and the stirring part (74) is fixedly mounted with a brush (75) on the inner surface of the ring (72) near the axial direction. The brush (75) is located on the outer surface of the filter body (3).

8. The high concentration wastewater high efficiency anaerobic treatment device according to claim 7, characterized in that: A jacket (8) is fixedly installed on the outer surface of the liquid outlet pipe (12), and a second heating element is spirally arranged inside the jacket (8).

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