An anti-clogging device for exhaust gas from a three-phase separator in an anaerobic reactor

Abstract

This utility model belongs to the technical field of three-phase separators, specifically relating to an anti-clogging device for exhaust gas from a three-phase separator in an anaerobic reactor. It includes: a tank; a gas-liquid separator disposed above the tank, with several gas collecting pipes extending into the tank connected within the gas-liquid separator; a three-phase separator disposed on the gas collecting pipes at the bottom of the tank; and a circulating pump whose inlet is connected to the tank and whose outlet is connected to the end of the gas collecting pipes near the gas-liquid separator. This utility model solves the problem of scum accumulation clogging the gas pipes in a three-phase separator. Three-phase separation is achieved through the tank, with the rising gas being discharged through the gas collecting pipes. The three-phase separator facilitates gas entry into the gas collecting pipes. A circulating pump draws circulating water from the tank and sends it to the end of the gas collecting pipes near the gas-liquid separator, thus completely flushing the inside of the gas collecting pipes and preventing scum from clogging them.

Description

Technical Field

[0001] This utility model belongs to the field of three-phase separator technology, specifically relating to an exhaust anti-clogging device for a three-phase separator in an anaerobic reactor. Background Technology

[0002] Food processing wastewater is a common type of industrial wastewater, characterized by large volume, high concentration, and good biodegradability. Since most pollutants in food processing wastewater are easily biodegradable organic matter, biological methods are primarily used in its treatment. Therefore, biological methods constitute a significant portion of food processing wastewater treatment. Anaerobic reactors are a commonly used wastewater treatment technology, frequently applied to food processing wastewater, such as beverage wastewater, milk wastewater, fruit processing wastewater, and meat processing wastewater, achieving excellent treatment results.

[0003] The three-phase separator is the core device of the anaerobic reactor, which can achieve solid-liquid-gas separation in the anaerobic reaction. The main characteristics of food industry wastewater include high organic content, high suspended solids content, and easy putrefaction. This can easily lead to a large amount of suspended solids entering the anaerobic reactor, causing scum to accumulate in the three-phase separator and block the exhaust pipe, making it impossible for gas to be discharged from the three-phase separator, which seriously affects the solid-liquid-gas separation of the three-phase separator. Utility Model Content

[0004] The technical problem to be solved by this utility model is to overcome the shortcomings of the prior art and provide an exhaust anti-blocking device for a three-phase separator in an anaerobic reactor, which is used to solve the problem of scum accumulation blocking the gas pipe in the three-phase separator.

[0005] The technical solution of this utility model to solve the above-mentioned technical problems is as follows: A three-phase separator exhaust anti-clogging device for an anaerobic reactor, comprising:

[0006] Tank body;

[0007] A gas-liquid separator is installed above the tank body, and the gas-liquid separator is connected to several gas collecting pipes that extend into the tank body;

[0008] A three-phase separator is installed on the gas collecting pipe at the bottom end of the tank.

[0009] A circulating pump has its inlet connected to the tank body, and its outlet connected to the end of the gas collecting pipe near the gas-liquid separator.

[0010] Compared with existing technologies, the above technical solutions have the following beneficial effects:

[0011] Three-phase separation is performed through the tank. The gas rises and is discharged through the gas collecting pipe. The three-phase separator is designed to facilitate the entry of gas into the gas collecting pipe. A circulating pump draws circulating water from the tank and sends it to the end of the gas collecting pipe near the gas-liquid separator, which flushes the inside of the gas collecting pipe and prevents scum from clogging the gas collecting pipe, thus preventing the gas inside from being unable to be discharged.

[0012] In one embodiment, the outlet of the circulating pump is connected to a flushing main pipe, and the end of the flushing main pipe away from the circulating pump is connected to several flushing branch pipes. A pipeline valve is connected in series in the flushing branch pipes that are connected to the gas collecting pipe.

[0013] Multiple flushing branch pipes are connected through the main flushing pipe, each corresponding to a different gas collection pipe. The pipe valves installed on the flushing branch pipes can be opened and closed individually to deal with blockages in different gas collection pipes.

[0014] In one embodiment, the three-phase separator includes:

[0015] The lower separator is connected to the inner wall of the tank on its outer side, and extends downward at an angle on its inner side. The gas collecting pipe is connected through the lower separator.

[0016] The upper separator has the gas collecting pipe connected to its top, and the bottom edge of the upper separator is clearance-fitted with the upper surface of the lower separator.

[0017] In one embodiment, the bottom diameter of the upper separator is larger than the inner diameter of the lower separator.

[0018] In one embodiment, a water collection tank is also included, disposed in the tank above the three-phase separator, and a sawtooth weir is provided on the water collection tank.

[0019] In one embodiment, a drain pipe communicating with the outside of the tank is provided in the water collection tank, and a slag baffle is provided between the water collection tank and the drain pipe.

[0020] In one embodiment, the outlet of the circulating pump is connected to a circulating pump outlet pipe, and the outlet end of the circulating pump outlet pipe extends into the tank and faces the bottom of the tank.

[0021] In one embodiment, the circulation pump inlet is connected to a circulation pump water inlet pipe, and the water inlet end of the circulation pump water inlet pipe extends into the tank and upwards to the middle of the tank. Attached Figure Description

[0022] 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.

[0023] Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0024] Figure label:

[0025] 1. Tank body; 2. Gas-liquid separator; 3. Gas collecting pipe; 4. Three-phase separator;

[0026] 401. Upper separator; 402. Lower separator;

[0027] 5. Circulating pump; 6. Main flushing pipe; 7. Branch flushing pipe; 8. Pipeline valve; 9. Water collection tank; 10. Sawtooth weir; 11. Drain pipe; 12. Slag baffle; 13. Circulating pump outlet pipe; 14. Circulating pump inlet pipe. Detailed Implementation

[0028] The embodiments of the present invention will now be described in detail with reference to the accompanying drawings. These embodiments are merely illustrative of the present invention and should not be construed as limiting the scope of protection of the present invention.

[0029] It should be noted that, unless otherwise stated, the technical or scientific terms used in this application shall have the ordinary meaning as understood by one of ordinary skill in the art to which this utility model pertains.

[0030] In the description of this application, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and 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.

[0031] In this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; 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; they can refer to the internal communication of two components or the interaction between 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.

[0032] like Figure 1 As shown in the figure, the three-phase separator exhaust anti-clogging device for an anaerobic reactor provided in this embodiment includes: a tank 1, a gas-liquid separator 2, a three-phase separator 4, and a circulating pump 5. The tank 1 is the main place where the anaerobic reaction occurs. Wastewater is introduced into the tank 1 and reacts with the microorganisms at the bottom of the tank 1, which then generate gas that rises. The gas-liquid separator 2 is located above the tank 1. The gas-liquid separator 2 is connected to several gas collecting pipes 3 that extend into the tank 1. The rising gas enters the gas-liquid separator 2 through the gas collecting pipes 3 for separation. The three-phase separator 4 is located at the bottom of the tank 1 on the gas collecting pipes 3 and is used to reflect and collect the rising gas in the tank 1 into the gas collecting pipes 3.

[0033] The inlet of the circulating pump 5 is connected to the tank 1, and the outlet of the circulating pump 5 is connected to the end of the gas collecting pipe 3 near the gas-liquid separator 2. The circulating pump 5 draws circulating water from the tank 1.

[0034] In this embodiment, three-phase separation is performed through tank 1. The gas rises and is discharged through gas collection pipe 3. The three-phase separator 4 is set to facilitate the gas to enter the gas collection pipe 3. The circulating pump 5 draws circulating water from tank 1 and sends it to the end of gas collection pipe 3 near gas-liquid separator 2. This allows the inside of gas collection pipe 3 to be completely flushed during backwashing, preventing scum from clogging gas collection pipe 3 and thus preventing the gas inside from being discharged.

[0035] To improve the targeting of backwashing, the outlet of the circulating pump 5 is connected to a main flushing pipe 6. The end of the main flushing pipe 6 away from the circulating pump 5 is connected to several flushing branch pipes 7. Each flushing branch pipe 7 is connected to a gas collecting pipe 3. A pipeline valve 8 is connected in series in the flushing branch pipe 7 connected to the gas collecting pipe 3. Normally, the pipeline valve 8 is closed, and the gas collecting pipe 3 normally sends the gas into the gas-liquid separator 2 for gas-liquid separation. When flushing is required, the pipeline valve 8 is opened, and circulating water in the tank 1 is drawn into the gas collecting pipe 3 to flush the scum and impurities present in the gas collecting pipe 3 into the tank 1. The flushing branch pipes 7 correspond to each gas collecting pipe 3, and the pipeline valve 8 set on the flushing branch pipe 7 can be opened and closed individually to deal with the blockage of different gas collecting pipes 3. If some gas collecting pipes 3 are blocked and some gas collecting pipes 3 are unobstructed, the pipeline valve 8 of the unobstructed gas collecting pipe 3 can be closed, and the circulating water only enters the blocked gas collecting pipe 3, thereby increasing the impact force of the circulating water.

[0036] In this embodiment, the three-phase separator 4 includes a lower separator 402 and an upper separator 401.

[0037] The lower separator 402 is annular, with its outer side connected to the inner wall of the tank 1. The inner side of the lower separator 402 extends downward at an angle, forming a collection area at the outer ring position inside the tank 1. The gas in the collection area is sent to the upper gas-liquid separator 2 through the gas collecting pipe 3, which is connected to the lower separator 402. The upper separator 401 is hood-shaped and is located above the lower separator 402. The top of the upper separator 401 is connected to the gas collecting pipe 3. The bottom edge of the upper separator 401 is clearance-fitted with the upper surface of the lower separator 402. By placing the lower separator 402 below the upper separator 401, a gap is formed between the two. The gap allows water to flow through. The narrow gap ensures water flow while slowing down and settling the microorganisms rising with the water flow at the bottom, thus reducing the loss of microorganisms.

[0038] To improve the airflow collection effect, the bottom diameter of the upper separator 401 is larger than the inner diameter of the lower separator 402. The diameter of the upper separator 401 covers the middle inner diameter area of ​​the lower separator 402, so that the upper separator 401 can form a collection area in the middle of the tank 1 and match the lower separator 402 to form a collection area, thereby improving the gas collection effect and realizing that the two collection areas fully cover the radial surface of the tank 1.

[0039] In this embodiment, a water collection tank 9 is also included. The water collection tank 9 is disposed in the tank body 1 above the three-phase separator 4. A sawtooth weir 10 is provided on the water collection tank 9. The water level can be controlled at a suitable height by the sawtooth weir 10. At the same time, the sawtooth shape makes the water flow form a relatively stable thin layer flow at the weir mouth. This flow pattern helps to remove floating objects on the water surface and reduce the carry-out of suspended objects in the water.

[0040] To prevent scum and other debris from being discharged from the water collection tank 9, a drain pipe 11 is provided in the water collection tank 9 to connect to the outside of the tank body 1. A scum baffle 12 is provided between the water collection tank 9 and the drain pipe 11. The scum baffle 12 can filter out scum and ensure that no impurities are discharged from the drain pipe 11.

[0041] To prevent solid impurities from settling at the bottom of tank 1, the outlet of the circulation pump 5 is connected to a circulation pump outlet pipe 13. The outlet end of the circulation pump outlet pipe 13 extends into the tank 1 and faces the bottom of the tank 1. The water from the circulation pump 5 impacts the bottom of the tank 1 through the circulation pump outlet pipe 13, ensuring that the water in the bottom area of ​​the tank 1 is agitated and that impurities react fully with microorganisms. At the same time, multiple circulation pump outlet pipes 13 can be provided, all pointing towards the bottom of the tank 1 to cover most of the bottom area of ​​the tank 1.

[0042] The inlet of the circulating pump 5 is connected to the circulating pump inlet pipe 14. The inlet end of the circulating pump inlet pipe 14 extends into the tank 1 and extends upward to the middle of the tank 1, so that the water in the circulating pump 5 is drawn from the middle of the tank 1, avoiding the intake of circulating water with more impurities in the bottom area of ​​the tank 1. The inlet end of the circulating pump inlet pipe 14 is higher than the circulating pump outlet pipe 13.

[0043] In addition, the circulating pump inlet pipe 14 and the circulating pump outlet pipe 13 are located inside the tank 1, so there is no need to cover the circulating pump inlet pipe 14 and the circulating pump outlet pipe 13 with insulation material, thus reducing costs.

[0044] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this utility model.

Claims

1. An anaerobic reactor three-phase separator exhaust anti-blocking device, characterized in that, include: Tank body; A gas-liquid separator is installed above the tank body, and the gas-liquid separator is connected to several gas collecting pipes that extend into the tank body; The three-phase separator is installed on the gas collecting pipe at the bottom end of the tank. A circulating pump has its inlet connected to the tank body, and its outlet connected to the end of the gas collecting pipe near the gas-liquid separator.

2. The exhaust gas clogging prevention device according to claim 1, characterized by The outlet of the circulating pump is connected to a flushing main pipe, and the end of the flushing main pipe away from the circulating pump is connected to several flushing branch pipes. A pipeline valve is connected in series in the flushing branch pipes that are connected to the gas collecting pipe.

3. The exhaust gas clogging prevention device according to claim 1, characterized by The three-phase separator includes: The lower separator is connected to the inner wall of the tank on its outer side, and extends downward at an angle on its inner side. The gas collecting pipe is connected through the lower separator. The upper separator has the gas collecting pipe connected to its top, and the bottom edge of the upper separator is clearance-fitted with the upper surface of the lower separator.

4. The exhaust gas clogging prevention device according to claim 3, characterized by The bottom diameter of the upper separator is larger than the inner diameter of the lower separator.

5. The exhaust gas anti-blocking device according to claim 1, wherein It also includes a water collection tank, which is located in the tank above the three-phase separator, and the water collection tank is provided with a sawtooth weir.

6. The exhaust gas clogging prevention device according to claim 5, characterized by The water collection tank is equipped with a drain pipe that connects to the outside of the tank body, and a slag baffle is installed between the water collection tank and the drain pipe.

7. The exhaust gas anti-blocking device according to claim 1, wherein The outlet of the circulating pump is connected to a circulating pump water outlet pipe, and the water outlet end of the circulating pump water outlet pipe extends into the tank and faces the bottom of the tank.

8. The exhaust gas anti-blocking device according to claim 7, characterized in that, The inlet of the circulating pump is connected to a water inlet pipe, and the inlet end of the water inlet pipe extends into the tank and upwards to the middle of the tank.

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