Industrial wastewater treatment device

Abstract

The utility model relates to the technical field of industrial wastewater treatment, and aims to solve the problems that the local heating in an anaerobic tank is non-uniform and the existing industrial wastewater treatment device is not suitable for a large sewage treatment tank because a hot water pipeline is adopted to directly exchange heat for the anaerobic tank. The utility model provides an industrial wastewater treatment device which comprises a liquid inlet pipe, an anaerobic tank, a tank body, a first filter component and a heat exchange component, the first filtering assembly is arranged in the top of the tank body; the liquid inlet pipe is communicated with the top of the tank body; the heat exchange assembly is arranged outside the tank body in a surrounding manner; a plurality of liquid discharge pipes are arranged at the bottom of the tank body; the plurality of liquid discharge pipes are communicated with a constant-temperature tank; the constant-temperature tanks are communicated with the anaerobic tank; the industrial wastewater treatment device provided by the utility model can ensure that the temperature of wastewater introduced into the anaerobic tank is suitable for anaerobic fermentation reaction, so that the treatment efficiency of the wastewater can be improved, and the industrial wastewater treatment device can be suitable for a large anaerobic tank.

Description

Technical Field

[0001] This utility model relates to the field of industrial wastewater treatment technology, and more specifically, to an industrial wastewater treatment device. Background Technology

[0002] The core step in industrial wastewater treatment is biochemical treatment, which involves removing organic matter through microorganisms in bioreactors or activated sludge systems. These microorganisms decompose and degrade pollutants, transforming them into more stable and harmless substances.

[0003] In existing technologies, common biochemical treatment methods include activated sludge processes, biofilm processes, and anaerobic-aerobic (A / O) processes. Among these, the A / O process usually requires specialized equipment to achieve good treatment results. For example, patent CN211111284U discloses an industrial wastewater treatment device that uses an anaerobic tank, a hot water tank, hot water pipes, and thermometers to control the temperature of the anaerobic tank and promote fermentation reactions within it, thereby improving the biochemical treatment effect of the wastewater. However, in actual industrial wastewater treatment processes, the discharge volume of industrial wastewater is large and continuous, resulting in a large actual size of the anaerobic tank. Consequently, using only hot water pipes for heat exchange cannot guarantee uniform temperature inside the tank. In fact, large temperature differences can easily lead to an increase in side reactions caused by temperature imbalances within the anaerobic tank. This not only affects the efficiency of wastewater treatment but also easily generates new harmful substances that are difficult to treat.

[0004] Based on the above description, there is an urgent need for an industrial wastewater treatment device that can heat the wastewater evenly and ensure the fermentation temperature throughout the anaerobic tank. Utility Model Content

[0005] The purpose of this utility model is to provide an industrial wastewater treatment device, which aims to solve the technical problems of existing industrial wastewater treatment devices that use hot water pipes to directly exchange heat with the anaerobic tank, resulting in uneven heating in some areas of the tank and making them unsuitable for large-scale sewage treatment tanks.

[0006] The embodiments of this utility model are achieved through the following technical solutions:

[0007] An industrial wastewater treatment device includes an inlet pipe and an anaerobic tank, as well as a tank body, a first filter assembly, and a heat exchange assembly; the first filter assembly is disposed inside the top of the tank body; the inlet pipe is connected to the top of the tank body; the heat exchange assembly is disposed outside the tank body; multiple drain pipes are provided at the bottom of the tank body; all of the multiple drain pipes are connected to a constant temperature tank; and all the constant temperature tanks are connected to the anaerobic tank.

[0008] Preferably, the first filter assembly includes a multi-stage filter plate and a vibrator; the multi-stage filter plates are all internally disposed within the tank; the vibrator is externally disposed at one end of the tank near the filter plate.

[0009] Preferably, the heat exchange assembly includes a shell, an inlet pipe, and an outlet pipe; the bottom of the tank is provided with a confluence section; the shell surrounds the outer wall of the confluence section; a heat exchange cavity is provided between the shell and the outer wall of the confluence section; the inlet pipe and the outlet pipe are both connected to the heat exchange cavity.

[0010] Preferably, the outer wall of the confluence section is provided with multiple arc-shaped convex surfaces.

[0011] Preferably, a stirrer is installed inside the manifold.

[0012] Preferably, the anaerobic tank is connected to the aerobic tank via a liquid extraction assembly.

[0013] Preferably, a second filtration assembly is provided between the anaerobic tank and the aerobic tank; the liquid extraction assembly is connected to the liquid inlet end of the second filtration assembly.

[0014] The technical solution of this utility model embodiment has at least the following advantages and beneficial effects:

[0015] This invention introduces industrial wastewater into a tank via an inlet pipe. The wastewater is then filtered by a first filter component inside the tank, followed by heat exchange through the tank and heating components. The wastewater is then extracted through multiple drain pipes and further buffered and kept at a constant temperature in a constant temperature tank. Finally, based on the treatment progress of the anaerobic tank, the wastewater is extracted in batches for anaerobic fermentation.

[0016] By simultaneously filtering and exchanging heat, the efficiency of industrial wastewater treatment can be effectively improved. Furthermore, by first exchanging heat to a suitable temperature range before introducing the wastewater into the anaerobic tank, the temperature of the wastewater entering the anaerobic tank can be ensured to be suitable for anaerobic fermentation. This not only improves the wastewater treatment efficiency but also makes it suitable for large-scale anaerobic tanks. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the structure of this utility model;

[0018] Figure 2 for Figure 1 An enlarged schematic diagram of local structure A in the middle.

[0019] Icons: 1-Inlet pipe, 2-Anaerobic tank, 3-Tank body, 4-First filter assembly, 5-Heat exchange assembly, 51-Shell, 52-Inlet pipe, 53-Outlet pipe, 6-Constant temperature tank, 7-Arched convex surface, 8-Agitator, 9-Liquid extraction assembly, 10-Second filter assembly, 11-Aerobic tank. Detailed Implementation

[0020] The specific implementation method is described below with reference to the accompanying drawings.

[0021] Example 1

[0022] Please see Figures 1 to 2 The present invention provides the following technical solution: an industrial wastewater treatment device, which is suitable for treating industrial wastewater using an anaerobic-aerobic process.

[0023] Specifically, such as Figure 1 and Figure 2 As shown, an industrial wastewater treatment device includes an inlet pipe 1 and an anaerobic tank 2, as well as a tank body 3, a first filter assembly 4, and a heat exchange assembly 5. The first filter assembly 4 is disposed inside the top of the tank body 3. The inlet pipe 1 is connected to the top of the tank body 3. The heat exchange assembly 5 is arranged around the outside of the tank body 3. Multiple drain pipes are provided at the bottom of the tank body 3. All of the multiple drain pipes are connected to a constant temperature tank 6. The constant temperature tank 6 is connected to the anaerobic tank 2.

[0024] In this embodiment, industrial wastewater is introduced into tank 3 through inlet pipe 1, then filtered by first filter component 4 inside tank 3, and then heat-exchanged by tank 3 and heating component 5. The wastewater is then extracted through multiple drain pipes and further buffered and kept at a constant temperature in constant temperature tank 6. Finally, according to the treatment progress of anaerobic tank 2, it is extracted in batches for anaerobic fermentation. The simultaneous filtration and heat exchange effectively improves the efficiency of industrial wastewater treatment. Furthermore, by first heat-exchanging the wastewater to a suitable temperature range before introducing it into anaerobic tank 2, the temperature of the wastewater entering anaerobic tank 2 is ensured to be suitable for anaerobic fermentation. This not only improves wastewater treatment efficiency but also makes it suitable for large-scale anaerobic tanks.

[0025] In this embodiment, the heat exchange component 5 can be completely surrounded on the outside of the tank body 3. The heat exchange component 5 is provided with an insulating shell to reduce heat loss. The heat exchange component 5 can filter the wastewater inside the tank body 3 or the filtered wastewater.

[0026] In this embodiment, the anaerobic tank 2 is an insulated tank body to ensure that the wastewater after heat exchange can still have a suitable fermentation temperature after being sent into the anaerobic tank 2.

[0027] Specifically, such as Figure 1 and Figure 2 As shown, the first filter assembly 4 includes a multi-stage filter plate and a vibrator; the multi-stage filter plates are all internally disposed in the tank body 3; the vibrator is externally disposed at one end of the tank body 3 near the filter plate.

[0028] In this embodiment, the filter holes of the multi-stage filter plates have different diameters. The diameter of the filter holes near the top of the tank 3 is the largest, and the diameter of the filter plates gradually decreases towards the bottom of the tank 3. The inner wall of the tank 3 is provided with blocks of different heights to support the filter plates and to facilitate the disassembly and replacement of the filter plates.

[0029] Specifically, such as Figure 1 and Figure 2 As shown, the heat exchange assembly 5 includes a shell 51, an inlet pipe 52, and an outlet pipe 53; the bottom of the tank 3 is provided with a confluence section; the shell 51 is surrounded by the outer wall of the confluence section; a heat exchange cavity is provided between the shell 51 and the outer wall of the confluence section; the inlet pipe 52 and the outlet pipe 53 are both connected to the heat exchange cavity.

[0030] In this embodiment, the heat exchange medium can be a gas or a liquid, and the circulation and replacement of the heat exchange medium are achieved by multiple pumps.

[0031] Specifically, such as Figure 1 and Figure 2 As shown, the outer wall of the manifold is continuously provided with multiple arc-shaped convex surfaces 7. An agitator 8 is installed inside the manifold.

[0032] In this embodiment, multiple arc-shaped convex surfaces 7 are further provided on the outer wall of the confluence section and combined with a stirrer 8 to increase the heat exchange area, improve the heat exchange efficiency, and ensure that the wastewater finally transported to the anaerobic tank 2 is heated.

[0033] Specifically, such as Figure 1 As shown, the anaerobic tank 2 is connected to the aerobic tank via the liquid extraction assembly 9. The second filtration assembly 10 is located between the anaerobic tank 2 and the aerobic tank 11; the liquid extraction assembly 9 is connected to the inlet end of the second filtration assembly 10.

[0034] In this embodiment, the wastewater treated by anaerobic fermentation is pumped out by a liquid pump and sent to the second filter assembly 10 for filtration and heat exchange again in order to reach a suitable reaction temperature and further improve the wastewater treatment efficiency.

Claims

1. An industrial wastewater treatment plant comprising an inlet pipe (1) and an anaerobic tank (2), characterized in that: It also includes the tank body (3), the first filter assembly (4) and the heat exchange assembly (5); the first filter assembly (4) is arranged in the top of the tank body (3); the liquid inlet pipe (1) is communicated with the top of the tank body (3); the heat exchange assembly (5) is arranged outside the tank body (3); the bottom of the tank body (3) is provided with a plurality of liquid outlet pipes; the plurality of liquid outlet pipes are all communicated with constant temperature tanks (6); the constant temperature tanks (6) are all communicated with the anaerobic tank (2).

2. The industrial wastewater treatment device according to claim 1, characterized in that: The first filter assembly (4) includes a plurality of filter orifice plates and a vibrator; the plurality of filter orifice plates are all arranged in the tank body (3); the vibrator is arranged outside the tank body (3) near one end of the filter orifice plate.

3. The industrial wastewater treatment device of claim 1, wherein: The heat exchange assembly (5) includes a shell (51), an air inlet pipe (52) and an air outlet pipe (53); the bottom of the tank body (3) is provided with a converging portion; the shell (51) is arranged outside the outer wall of the converging portion; a heat exchange cavity is arranged between the shell (51) and the outer wall of the converging portion; the air inlet pipe (52) and the air outlet pipe (53) are both communicated with the heat exchange cavity.

4. The industrial wastewater treatment device of claim 3, wherein: The outer wall of the converging portion is continuously provided with a plurality of arc convex surfaces (7).

5. The industrial wastewater treatment device of claim 3, wherein: The inside of the converging portion is provided with a stirrer (8).

6. The industrial wastewater treatment device according to any one of claims 1 to 5, characterized in that: The anaerobic tank (2) is communicated with the aerobic tank (11) through a liquid pumping assembly (9).

7. The industrial wastewater treatment device of claim 6, wherein: The second filter assembly (10) is arranged between the anaerobic tank (2) and the aerobic tank (11); the liquid pumping assembly (9) is communicated with the liquid inlet end of the second filter assembly (10).

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