High-temperature wastewater treatment device

Abstract

The utility model relates to a high-temperature wastewater treatment device, belongs to the technical field of wastewater treatment, and solves the problems in the prior art that high-temperature wastewater is difficult to treat, the process flow is long, the occupied area is large, the operation is unstable, the production process is complicated, the investment and maintenance cost is high and the like. The utility model provides a high-temperature wastewater treatment device. The device comprises a reaction coagulation section and a softening membrane filtration section, the softening membrane filtering section adopts mutually independent hollow fiber membrane filaments for filtering, the upper ends of the hollow fiber membrane filaments are open, the bottom ends of the hollow fiber membrane filaments are closed, and the hollow fiber membrane filaments are vertically mounted in the softening membrane filtering device. When the device is used for high-temperature wastewater treatment, advanced cooling is not needed, and a process section is compressed into'reaction tank-coagulating tank-softening membrane filtration-water outlet ', so that the process flow is remarkably shortened, the occupied area is greatly reduced, the operation stability is high, and the investment cost is remarkably reduced; the device and the matched technology are resistant to high temperature and acid and alkali, the SDI of produced water is smaller than or equal to 3.0, the water recovery rate can reach 95%, and the service life can reach more than 10 years.

Description

Technical Field

[0001] The utility model relates to the technical field of wastewater treatment, in particular to a high-temperature wastewater treatment device. Background Art

[0002] High hardness, high silica content, and high turbidity are common water quality characteristics of industrial wastewater, and the wastewater is generally at room temperature. Currently, the common treatment processes for high-temperature wastewater are to cool it down before processing and then warm it up for reuse, or to cool it down before processing and then reprocessing it for reuse in other systems.

[0003] Chemical softening is a common process for treating wastewater with high temperature, high hardness, high silicon content, and high turbidity. The process flow is: incoming water cooling - coagulation reaction zone - flocculation and sedimentation zone - filtration - heat exchanger - effluent. This process has certain drawbacks, such as large footprint, unstable operation, and heat energy waste. With technological advancements, organic plate membranes have gradually replaced traditional processes for hardness, silicon, and turbidity removal. The process flow is: incoming water cooling - coagulation reaction zone - flocculation and sedimentation zone - organic plate membrane filtration - effluent. This process also has certain drawbacks, such as high investment costs and high system operation and maintenance costs. Subsequently, ceramic flat membranes emerged. The process flow is: incoming water cooling - coagulation reaction zone - flocculation and sedimentation zone - ceramic flat membrane filtration - concentrated sedimentation zone - effluent. This process also has certain drawbacks, such as complex production processes, large performance differences in sintered products, high investment costs, and fragility.

[0004] In summary, the existing technology has two main drawbacks: on the one hand, the heat in the wastewater cannot be utilized, resulting in a waste of resources, and the treated effluent often needs to be heated again for reuse; on the other hand, in order to provide good water inlet conditions for subsequent systems, the incoming water needs to be cooled and heated, which increases the process flow and the project investment cost. Utility Model Content

[0005] In view of the above analysis, the utility model aims to provide a high-temperature wastewater treatment device to solve at least one of the problems of high-temperature wastewater being difficult to treat (the membrane system is intolerant to high-temperature and highly corrosive wastewater), lengthy process flow and large footprint, unstable operation, complex production process, and high investment and maintenance costs.

[0006] The purpose of this utility model is mainly achieved through the following technical solutions:

[0007] The utility model provides a high-temperature wastewater treatment device, characterized in that the device comprises a reaction coagulation section and a softening membrane filtration section;

[0008] The reaction and coagulation section includes a reaction tank 20 and a coagulation tank 21;

[0009] The softening membrane filtration section includes a softening membrane filtration device 14, and the softening membrane filtration section includes a softening membrane filtration device 14. The softening membrane filtration device 14 includes mutually independent hollow fiber membranes 1414, and the hollow fiber membranes 1414 are open at the upper end and closed at the bottom end and are vertically installed inside the softening membrane filtration device 14.

[0010] Specifically, a regulating tank 1 is provided at the front end of the reaction tank 20, and the regulating tank 1 is used to regulate the water quality and water quantity of the incoming water; the regulating tank 1 is a steel structure or a steel concrete structure.

[0011] Specifically, the reaction tank 20 is provided with an upward rotating middle barrel and a first agitator; the first agitator is located in the upward rotating middle barrel.

[0012] Specifically, the reaction tank 20 adopts a baffle design to avoid the occurrence of short-flow areas.

[0013] Specifically, the softening membrane filtration device 14 is one or more of a plate-type, tubular-type, immersed-type, scroll-type or column-type softening membrane filtration device 14 ; the turbidity of the effluent from the softening membrane filtration device 14 is less than 0.5 NTU.

[0014] Preferably, the softening membrane filtration section includes at least one softening membrane filtration device 14; when the number of softening membrane filtration devices 14 is ≥ 2, they are connected in parallel.

[0015] Furthermore, the softening membrane filtration device 14 is a columnar softening membrane filtration device 14 , which includes an upper head 141 , a columnar shell 146 , hollow fiber membranes 1414 and a lower head 1410 .

[0016] Specifically, the upper end surface of the cylindrical shell 146 is a flower plate 145, and the flower plate 145 is provided with a plurality of through holes 148. The membrane wire 1414 is arranged in the through hole 148. The membrane wire 1414 naturally droops due to its own weight and the bottom is not fixed; the upper head 141 and the cylindrical shell 146 are detachably connected, and the lower head 1410 and the cylindrical shell 146 are detachably connected.

[0017] Specifically, the diameter of the hollow fiber membrane 1414 is 3 to 20 μm; the hollow fiber membrane 1414 is made of PTFE, has a temperature resistance of ≥120° C., and a filtration accuracy of 0.02 to 0.1 μm.

[0018] Specifically, the treatment device is acid and alkali resistant, high temperature resistant, applicable to pH 0 to 14, and the maximum applicable temperature ≥120°C; the produced water SDI ≤3.0, the water recovery rate can reach 95%, and the service life is ≥10 years.

[0019] Compared with the prior art, the present invention can achieve at least one of the following beneficial effects:

[0020] 1. The high-temperature wastewater treatment device provided by the utility model compresses the process flow into "reaction coagulation section + softening membrane filtration section". Under the premise of ensuring the filtration effect, it greatly reduces the process links and significantly reduces the investment and maintenance costs.

[0021] Furthermore, the wastewater treatment device utilizes a novel softening membrane filtration device, which utilizes independent hollow fiber membranes for filtration. These membranes are open at the top and closed at the bottom, and are vertically mounted within the softening membrane filtration device. This structural design significantly increases the degree of freedom of individual hollow fiber membranes. This increases the contact area between the membrane and the liquid or gas, as well as the vibration amplitude of the membrane under compressed gas flushing, thereby improving filtration and backwashing efficiency. Furthermore, if individual membranes become damaged, they can be replaced individually, saving resources and maintenance costs.

[0022] 2. The high-temperature wastewater treatment device provided by the utility model has a rationally designed process flow. First, the silicon content of the incoming water is reduced in the reaction tank, and then the hardness, silicon and turbidity in the wastewater are further reduced through the coagulation tank. Finally, a new type of softening membrane filtration device is used for softening membrane filtration, which has low energy consumption and excellent water purification effect.

[0023] The softening membrane filtration device has an operating flux NWP ≥ 200LMH, an operating pressure not greater than 0.35 bar, and energy consumption is reduced by more than 90% compared with the traditional method; the final effluent turbidity is less than 0.5NTU, the produced water SDI ≤ 3.0, and the water recovery rate can reach 95%.

[0024] 3. The high-temperature wastewater treatment device provided by the present invention (mainly referring to the softening membrane filtration device) adopts hollow fiber membrane yarn made of PTFE material, which can withstand harsh wastewater environment. The suspended solids in the inlet water can reach 10,000 mg / L. It can be used with strong oxidants such as high-concentration sodium hypochlorite and hydrogen peroxide. The applicable pH is 0 to 14, the maximum applicable temperature is ≥120°C, and the service life can reach more than ten years.

[0025] In the present invention, the above-mentioned technical solutions can be combined with each other to achieve more preferred combinations. Other features and advantages of the present invention will be described in the following content, and some advantages will become apparent from the description or be understood through practice of the present invention. The objectives and other advantages of the present invention can be realized and obtained through the contents particularly pointed out in the text and drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] The accompanying drawings are only used for the purpose of illustrating specific embodiments and are not to be considered as limiting the present invention. Throughout the accompanying drawings, the same reference symbols denote the same components.

[0027] Figure 1 This is a schematic diagram of a high-temperature wastewater treatment device;

[0028] Figure 2 This is a schematic diagram of the structure of a possible column-type softening membrane filtration device.

[0029] Reference numerals:

[0030] 1. Equalization tank; 2. Inlet lift pump; 3. Inlet pipe; 4. Reaction tank barrel; 5. Second agitator; 6. Sodium hydroxide dosing pipe; 7. Magnesium agent dosing pipe; 8. Sodium carbonate dosing pipe; 9. Coagulant dosing pipe; 10. Softening membrane filter inlet pump; 11. Softening membrane filter inlet pipe; 12. Softening membrane filter outlet pipe; 13. Water production tank; 14. Softening membrane filter device; 15. Slag discharge pipe; 16. Sludge tank; 17. Sludge pump; 18. Plate and frame filter press; 19. Supernatant return pipe; 20. Reaction tank; 21. Coagulation tank.

[0031] 141. Upper head; 142. Water outlet; 143. Upper air inlet; 144. Sealing ring of upper head; 145. Flower plate; 146. Columnar shell; 147. Concentrate outlet; 148. Through hole; 149. Sealing ring of lower head; 1410. Lower head; 1411. Water inlet; 1412. Slag discharge port; 1413. Lower air inlet; 1414. Hollow fiber membrane. DETAILED DESCRIPTION

[0032] The preferred embodiments of the present invention are described in detail below in conjunction with the accompanying drawings, wherein the accompanying drawings constitute a part of this application and are used together with the embodiments of the present invention to illustrate the principles of the present invention, and are not used to limit the scope of the present invention.

[0033] The utility model provides a high-temperature wastewater treatment device, characterized in that the device comprises a reaction coagulation section and a softening membrane filtration section;

[0034] The reaction and coagulation section includes a reaction tank and a coagulation tank;

[0035] The softening membrane filtration section includes a softening membrane filtration device, and the softening membrane filtration device includes mutually independent hollow fiber membranes. The hollow fiber membranes are open at the upper end and closed at the bottom end and are vertically installed inside the softening membrane filtration device.

[0036] The high-temperature wastewater treatment device provided by the utility model compresses the process flow into a "reaction coagulation section + softening membrane filtration section", greatly reducing the process links while ensuring the filtration effect, and significantly reducing investment and maintenance costs.

[0037] Furthermore, the wastewater treatment device utilizes a novel softening membrane filtration device, which utilizes independent hollow fiber membranes for filtration. These membranes are open at the top and closed at the bottom, and are vertically mounted within the softening membrane filtration device. This structural design significantly increases the degree of freedom of individual hollow fiber membranes. This increases the contact area between the membrane and the liquid or gas, as well as the vibration amplitude of the membrane under compressed gas flushing, thereby improving filtration and backwashing efficiency. Furthermore, if individual membranes become damaged, they can be replaced individually, saving resources and maintenance costs.

[0038] Specifically, a regulating tank is provided at the front end of the reaction tank, and the regulating tank is used to regulate the water quality and water quantity of the incoming water so that the water quality and water quantity entering the subsequent treatment unit are stable to avoid shock to the treatment system; the regulating tank is a steel structure or a steel concrete structure.

[0039] Specifically, the effluent from the regulating tank is lifted by a water pump and enters the reaction tank, where it is de-hardened and de-siliconized by adding sodium hydroxide and de-siliconizing agents.

[0040] Specifically, the purpose of adding sodium hydroxide is to adjust the pH value and provide OH- to remove the hardness in the water. The principle is that HCO 3- +OH - =CO3 2- +H2O;Mg 2+ +2OH - =Mg(OH)2; Sodium hydroxide can be replaced by slaked lime, which has the same effect on removing hardness from water.

[0041] Specifically, the purpose of adding the desiliconizing agent is to reduce the silicon content in the water. The desiliconizing agent can be one or more of magnesium oxide, magnesium chloride, sodium aluminate, etc.

[0042] Specifically, the reaction tank is provided with an upward rotating middle barrel and a first agitator; the middle barrel is stretched, and the incoming water enters the coagulation tank after passing through the middle barrel, which extends the residence time and ensures complete reaction; the first agitator is located in the upward rotating middle barrel.

[0043] Specifically, the reaction tank adopts a baffle design to avoid the occurrence of short-flow areas.

[0044] Specifically, the effluent from the reaction tank enters the coagulation tank, where sodium carbonate and coagulant PAC are added to further remove the hardness, silicon and turbidity in the wastewater.

[0045] Specifically, adding sodium carbonate can further remove the hardness in water. The principle is that CO3 2- +Ca 2+=CaCO3; at the same time, sodium carbonate can be used as a substitute to supplement carbon dioxide gas, which has the same effect on removing hardness in water.

[0046] Specifically, a second agitator is provided inside the coagulation tank to ensure uniform reaction.

[0047] Specifically, the effluent from the coagulation tank is lifted by a pump and enters the softening membrane filtration section, and the effluent from the softening membrane filtration section enters the water production pool. The turbidity of the effluent from the softening membrane filtration section is less than 0.5NTU; the softening membrane filtration section is composed of a softening membrane filtration device, and the softening membrane filtration device discharges slag regularly, and the discharged slag enters the sludge pool, and is then lifted by a pump and enters the plate and frame filter press for sludge pressing treatment. The mud cake is transported out, and the filtrate is returned to the front-end regulating tank.

[0048] Specifically, the softening membrane filtration device is one or more of a plate-type, tubular-type, immersed-type, scroll-type or column-type softening membrane filtration device; and the turbidity of the effluent from the softening membrane filtration device is less than 0.5 NTU.

[0049] Preferably, the softening membrane filtration section includes at least one softening membrane filtration device; when the number of softening membrane filtration devices is ≥2, parallel connection is adopted.

[0050] Furthermore, the softening membrane filtration device is a columnar softening membrane filtration device, which includes an upper head, a cylindrical shell, hollow membrane fibers and a lower head.

[0051] Specifically, the upper end surface of the cylindrical shell is a flower plate, which is provided with a plurality of through holes. The membrane wire is arranged in the through holes. The membrane wire naturally droops due to its own weight and the bottom is not fixed; the upper head and the cylindrical shell are detachably connected, and the lower head and the cylindrical shell are detachably connected.

[0052] Specifically, the use of membrane filaments instead of fiber bundles in the prior art can avoid the phenomenon of poor water output from the membrane filaments in the center part of the membrane filament bundle in the prior art due to the mutual squeezing of the membrane filaments, thereby improving the filtration efficiency; on the other hand, since the membrane filaments are independent of each other and the bottom ends naturally droop, they have greater freedom during the backwashing process, allowing the membrane filaments to fully contact the backwashing gas and clean water, which can significantly improve the backwashing efficiency, thereby shortening the cleaning cycle and reducing the impact on continuous production.

[0053] Furthermore, when individual membrane fibers are damaged, resulting in substandard water quality, the damaged membrane fibers can be replaced individually without replacing the entire assembly or fiber bundle, saving resources and costs.

[0054] Preferably, the upper head and / or lower head are connected to the cylindrical shell through a sealing copy forest. Compared with other detachable connections, the copy forest connection is easy to disassemble while maintaining good sealing, avoiding problems such as water leakage or air leakage during operation of the component; when installing and replacing the membrane filament, the copy forest can be disassembled to perform the operation, which improves the efficiency of installing and replacing the membrane filament.

[0055] Specifically, the diameter of the hollow fiber membrane is 3 to 20 μm; the hollow fiber membrane is made of PTFE, with a temperature tolerance of ≥120°C and a filtration accuracy of 0.02 to 0.1 μm. Wastewater enters from the outside of the membrane, and water is produced inside the membrane, collected at the upper head, and discharged through the water outlet. The membrane is made of PTFE, with a temperature tolerance of ≥120°C and a filtration accuracy of 0.02 to 0.1 μm. PTFE, commonly known as the "king of plastics", is resistant to high temperatures and acid and alkali. The applicable pH range is 0 to 14, and it can be used in various highly corrosive environments such as HF, HCl, H2SO4, H3PO4, and NaOH; it can be used in strong oxidants such as high-concentration sodium hypochlorite and hydrogen peroxide, and its performance is stable under various operating environments.

[0056] Specifically, the upper head is provided with a water outlet and an upper air inlet. The water outlet preferably adopts a copy forest interface to facilitate connection with an external pipeline; the upper air inlet preferably adopts a quick-plug interface.

[0057] Specifically, the columnar shell is provided with a concentrated water inlet, which is arranged on the side wall of the columnar body near the upper end surface, and is used to discharge waste liquid during backwashing.

[0058] Specifically, the lower head is provided with a slag discharge port, which is located at the bottom of the lower head. Impurity particles in the water body settle to the bottom of the lower head and are regularly discharged through the slag discharge port to avoid deposition at the bottom.

[0059] Preferably, the upper end of the slag discharge port is designed to have a slope of 65 to 85 degrees to facilitate the discharge of solid impurities.

[0060] Specifically, the lower head is further provided with a water inlet, and the position of the water inlet is higher than the slag discharge port.

[0061] Specifically, the lower head is provided with a lower air inlet, and the lower air inlet is used to introduce compressed air during the backwashing process.

[0062] Specifically, the shape and size of the through hole match the diameter of the membrane thread, and the membrane thread is fixed to the through hole through a slot, and then fixed to the flower plate, and the main body of the membrane thread hangs naturally due to its own weight.

[0063] Preferably, the through holes are evenly distributed on the flower plate, with the number of through holes ranging from 50 to 300, for example, 50, 100, 150, 200, 250, or 300. Too few through holes will fail to fully utilize the internal space of the component, resulting in low filtration efficiency; too many through holes will lead to insufficient structural strength of the flower plate and even cause fine cracks, which may cause damage during operation.

[0064] The operation process of the column type softening membrane filtration device provided by the utility model is as follows:

[0065] First, according to the structural design drawing (such as Figure 2 Assemble the membrane components and install them in the corresponding positions of the entire equipment.

[0066] (Filtration process) Water enters through the lower water inlet of the lower head and fills the membrane shell from bottom to top. Driven by pressure, the liquid passes through the membrane surface and enters the interior of the membrane, which is the produced water. The produced water is collected in the upper head and flows out from the water outlet of the upper head;

[0067] (Cleaning process) After the filtration process has run for a period of time, the equipment is stopped, solid impurities and residual water are discharged from the slag discharge port, and the slag discharge port is closed. The lower air intake process is carried out, and compressed air enters through the lower air inlet of the lower head to flush and shake the membrane. After the lower air intake process is completed, backwash water (clean water) is introduced from the water outlet of the upper head and pressurized. Under the action of pressure, the backwash water / clean water flows from the inside of the membrane filament to the outside of the membrane filament (the opposite of the filtration process) and is discharged from the concentrated water outlet, thereby achieving the purpose of cleaning.

[0068] (Slag discharge procedure) Carry out irregular slag discharge procedure according to different working conditions;

[0069] (Membrane wire replacement) Disassemble the upper head sealing copy forest and the lower head sealing copy forest, take out the cylindrical shell and remove the damaged membrane wire from the flower plate, replace it with a new membrane wire, and then install the cylindrical shell back to its original position.

[0070] Parameters during the filtration and cleaning processes can be set based on actual needs and reference to existing technical specifications. Generally speaking, lower filtration pressures result in slower filtration but better filtration results. Higher filtration pressures result in faster filtration, but this also reduces filtration results and the lifespan of the membrane. Similar to the filtration process, the cleaning process requires determining the appropriate compressed air flow rate and backwash pressure based on actual needs and the specific parameters of the membrane.

[0071] Specifically, the wastewater treatment device is acid- and alkali-resistant, high-temperature resistant, and suitable for a pH range of 0 to 14, with a maximum applicable temperature of ≥120°C. It also has low energy consumption, employing a new softening membrane filtration device with an operating pressure of less than 0.035 MPa, reducing energy consumption by over 90% compared to traditional processes. It also exhibits strong pollution resistance, with suspended solids in the influent reaching 10,000 mg / L. It also boasts a high water recovery rate of 95%, with an SDI of ≤3.0 for the produced water. It can maintain high-throughput operation, with an NWP of ≥200 LMH, and a long lifecycle of at least 10 years. Given these advantages, the use of the membrane assembly for softening membrane filtration can replace multiple process stages in traditional processes, reducing overall investment, floor space, and project construction periods.

[0072] Example

[0073] Use Figure 1 The wastewater treatment plant shown is used to treat the wastewater produced by a certain enterprise, with a water volume of 62.5m 3 / h, pH value in wastewater is 1.5-3, conductivity is ≤5000us / cm, the main impurity is NiSO4, the maximum salinity of influent is ≤2g / L, suspended solids are ≤10mg / L, Ni is ≤200mg / L, Fe is ≤20mg / L, P is ≤50mg / L, Ca is less than 6mg / L, Mg is less than 2mg / L, F is less than 10mg / L, Cl is less than 10mg / L, water temperature is 30-50℃, COD and BOD are less than 100mg / L.

[0074] The processing process is as follows:

[0075] 1) First, send the wastewater to be treated into the raw material buffer tank / regulating tank to adjust the water quantity and quality.

[0076] 2) The effluent from the regulating tank is pumped into the reaction tank. The concentration of 4190 mg / L of liquid alkali with a purity of 40% is added. By adding liquid alkali, nickel hydroxide precipitation can be formed, thereby removing nickel ions.

[0077] 3) The effluent from the reaction tank enters the coagulation tank, where coagulant is added to further react and remove nickel ions in the water. The nickel ion concentration of the effluent is less than 20 mg / L.

[0078] 4) The effluent from the coagulation tank is sent to the softening membrane filtration device to remove excess suspended solids. The operating pressure of the softening membrane filtration system is 0.035MPa, and the effluent turbidity is less than 0.5NTU. The produced water can directly enter the subsequent process for reprocessing (such as reverse osmosis treatment) or be used directly as water for special purposes.

[0079] 5) The slag discharged from the softening membrane filtration device enters the sludge pool, the sludge is lifted by the pump and enters the chamber filter press, the supernatant water from the filter press enters the raw material buffer tank, and the mud cake is transported out, and the moisture content of the mud cake is ≤75%.

[0080] The above is only a preferred specific implementation method of the present invention, but the protection scope of the present invention is not limited to this. Any changes or replacements that can be easily thought of by any technician familiar with this technical field within the technical scope disclosed in the present invention should be covered by the protection scope of the present invention.

Claims

1. A high-temperature wastewater treatment device, characterized in that: The device comprises a reaction coagulation section and a softening membrane filtration section; The reaction and coagulation section includes a reaction tank (20) and a coagulation tank (21); The softening membrane filtration section includes a softening membrane filtration device (14), and the softening membrane filtration device (14) includes mutually independent hollow fiber membranes (1414). The hollow fiber membranes (1414) are open at the upper end and closed at the bottom end and are vertically installed inside the softening membrane filtration device (14).

2. The processing device according to claim 1, characterized in that A regulating tank (1) is provided at the front end of the reaction tank (20), and the regulating tank (1) is used to regulate the quality and quantity of incoming water; the regulating tank (1) is a steel structure or a steel-concrete structure.

3. The processing device according to claim 1, characterized in that The reaction tank (20) is provided with an upward rotating middle barrel and a first stirrer inside; the first stirrer is located in the upward rotating middle barrel.

4. The processing device according to claim 1, characterized in that The reaction tank (20) adopts a baffle design to avoid the occurrence of short-flow areas.

5. The processing device according to claim 1, characterized in that The softening membrane filtration device (14) is one or more of a plate-type, tubular-type, immersed-type, scroll-type or column-type softening membrane filtration device (14); the turbidity of the effluent from the softening membrane filtration device (14) is less than 0.5 NTU.

6. The processing device according to claim 1, characterized in that The softening membrane filtration section includes at least one softening membrane filtration device (14); when the number of the softening membrane filtration devices (14) is ≥2, parallel connection is adopted.

7. The processing device according to claim 5 or 6, characterized in that The softening membrane filtration device (14) is a columnar softening membrane filtration device (14), and the columnar softening membrane filtration device (14) comprises an upper head (141), a columnar shell (146), hollow fiber membranes (1414) and a lower head (1410).

8. The processing device according to claim 7, characterized in that The upper end surface of the cylindrical shell (146) is a flower plate (145), and the flower plate (145) is provided with a plurality of through holes (148). The membrane wire (1414) is arranged in the through holes (148). The membrane wire (1414) naturally droops due to its own weight and the bottom is not fixed; the upper head (141) and the cylindrical shell (146) are detachably connected, and the lower head (1410) and the cylindrical shell (146) are detachably connected.

9. The processing device according to claim 1, characterized in that The diameter of the hollow fiber membrane (1414) is 3 to 20 μm.

10. The processing device according to claim 1, characterized in that The hollow fiber membrane (1414) is made of PTFE, has a temperature tolerance of ≥120°C, and a filtration accuracy of 0.02 to 0.1 μm.

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