A multi-stage filtering and recycling equipment for brewery filtering wastewater

Abstract

The present application relates to beer wastewater multistage processing technical field, specifically to a kind of beer factory filtration wastewater multistage filtration recycling equipment, including tank body, the top of the tank body is sealedly installed with conical top cover by flange bolt, the top of the conical top cover is connected with bellows, the top of the conical top cover is fixedly installed with metering pump, the output of the metering pump is connected with addition pipe, the inside of the tank body is sleeved with inner tank layer one, the inside of the inner tank layer one is sleeved with inner tank layer two;Equipment internal filter screen, filter material, sterilization and other core components can be disassembled and replaced, can be according to the wastewater characteristics of different production processes of beer factory flexible adjustment processing configuration, adaptability is extremely strong;Compact, small footprint, whole machine structure is matched with intelligent control system to realize full-automatic operation, working condition regulation and control and safety protection, stable operation, easy operation, modular design runs efficiently.

Description

Technical Field

[0001] This invention relates to the field of multi-stage treatment technology for beer wastewater, specifically a multi-stage filtration and reuse device for brewery wastewater. Background Technology

[0002] Brewery wastewater originates from processes such as saccharification, fermentation, equipment cleaning, and bottle washing. It is classified as food wastewater with high organic matter content and excellent biodegradability. The water quality and quantity fluctuate greatly, and it contains both acidic fermentation residues and alkaline cleaning wastewater. The water is mixed with a large amount of suspended solids such as malt residue and yeast protein. During treatment, the wastewater is first pre-filtered through coarse and fine screens and a drum microfiltration system to intercept large particles of residue. After homogenization and adjustment, it enters the biological treatment system. The effluent from the biological treatment system is then further filtered by fiber balls and quartz sand to remove suspended solids. If there is a need for reuse, ultrafiltration is used for deep filtration. The separated malt residue sludge can also be recycled and utilized.

[0003] During the brewery production process, various processes generate wastewater that needs to be treated before discharge due to its high organic content. However, discharging treated wastewater is wasteful. The wastewater generated during beer production needs to be treated to meet discharge standards or be reused, requiring filtration equipment. However, existing filtration equipment has complex piping connections, many redundant pipes, and a large footprint, making it difficult to miniaturize. Furthermore, it cannot adapt to different beer production lines and requires additional customization. It is also impossible to adjust the internal treatment components according to actual needs, thus reducing efficiency. Based on this, a multi-stage filtration and reuse equipment for brewery wastewater is proposed. Summary of the Invention

[0004] The purpose of this invention is to provide a multi-stage filtration and reuse device for brewery wastewater to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a multi-stage filtration and reuse device for brewery wastewater, comprising a tank body, a conical top cover sealed to the top of the tank body by flange bolts, a corrugated pipe connected to the top of the conical top cover, a metering pump fixedly installed on the top of the conical top cover, an add-in pipe connected to the output end of the metering pump, an inner tank layer one sleeved inside the tank body, an inner tank layer two sleeved inside the inner tank layer one, and fixed installations on opposite sides of the tank body, inner tank layer one, and inner tank layer two. The inner tank has several support pillars. A baffle cone is sealed to the top of the second inner tank layer, and a sealing flange is fixedly fitted to the outside of the baffle cone. A grid filter is sealed to the top of the first inner tank layer, and an outer flange ring is fixedly fitted to the outside of the grid filter. A gas adding valve is fixedly installed on the outside of the bottom end of the tank body. Four electrically controlled automatic sludge discharge valves are fixedly installed at the bottom of the tank body. A discharge pipe is connected to the bottom of the inner cavity of the second inner tank layer, and the other end of the discharge pipe is connected to a negative pressure pump. The bottom end of the second inner tank layer is fixed internally... A partition is fitted with a transparent branch pipe fixedly fitted inside the top of the partition. Several connecting holes are opened inside the bottom end of the transparent branch pipe. An ultrafiltration filter element assembly is installed on top of the partition. An externally perforated pressure plate is placed on top of the ultrafiltration filter element assembly. Activated carbon packing is placed on top of the externally perforated pressure plate. Quartz sand packing is placed on top of the activated carbon packing. A perforated pressure plate is placed on top of the quartz sand packing. An ultraviolet sterilization encapsulation lamp column is installed at the bottom of the perforated pressure plate. The inner part of the sealing flange... A tube is fixedly installed in the tank body. A guide tube is sealed inside the tube. A first sealing bearing is sleeved on the outer side of the other end of the guide tube. Two second sealing bearings are sleeved through the top of the inner tank layer one and the inner tank layer two. A support cylinder is sleeved inside the two second sealing bearings. A secondary filter cylinder is fixedly installed at one end of the support cylinder. A microfilter cylinder is fixedly installed on the opposite side of the secondary filter cylinder and the support cylinder. A spiral plate is fixedly installed inside the microfilter cylinder and the secondary filter cylinder. A servo motor is installed on the outer side of the tank body.

[0006] Preferably, the adding tube is fixedly inserted through the corrugated pipe and extends to the inner side of the baffle cone, and the outer side of the adding tube is movably inserted into the inner side of the grid filter and the baffle cone through a sealing mechanism.

[0007] Preferably, the support columns are evenly distributed in a circular linear pattern on opposite sides of the tank body, inner tank layer one, and inner tank layer two. The tank body, inner tank layer one, and inner tank layer two are nested in a hierarchical manner. The bottom of the sealing flange is fitted with an inner flange ring through a sealing ring. The sealing flange and the inner flange ring are sealed and installed through each other by bolts. The outer side of the sealing flange is sealed and fitted onto the inner side of the grid filter screen through a sealing ring. The outer side of the outer flange ring is sealed and installed on the outer side of the top of inner tank layer one by flange bolts.

[0008] Preferably, the output end of the gas adding valve is fixedly connected to the bottom of the inner cavity of the inner tank layer, penetrating the tank body and the inner tank layer.

[0009] Preferably, the four electrically controlled automatic sludge discharge valves are arranged in pairs, with the tops of the two pairs of electrically controlled automatic sludge discharge valves respectively connected to the bottom of the inner cavity of inner tank layer one and inner tank layer two, and the four electrically controlled automatic sludge discharge valves are evenly distributed in a circle at the bottom of the tank body.

[0010] Preferably, the discharge pipe is fixedly installed through the inner tank layer and the tank body and extends to the outside of the tank body, the negative pressure pump is fixedly installed on the ground by bolts, and an electrically controlled flow regulating valve is provided inside the discharge pipe.

[0011] Preferably, the connecting holes are evenly distributed in a circular linear pattern inside the bottom of the transparent branch pipe. The ultrafiltration filter element assembly is sealed and fitted onto the opposite sides of the transparent branch pipe and the second inner tank layer. The distribution position of the connecting holes is adapted to the specifications and dimensions of the ultrafiltration filter element assembly. The externally perforated pressure plate is sealed and fitted onto the opposite sides of the transparent branch pipe and the second inner tank layer. A guide hole is provided on the outer side of the externally perforated pressure plate. The quartz sand packing and activated carbon packing are distributed on the opposite sides of the transparent branch pipe and the second inner tank layer. The hollow pressure plate is fitted onto the inner side of the second inner tank layer. The bottom of the hollow pressure plate is sealed and plugged with the top of the transparent branch pipe through a sealing structure. The ultraviolet sterilization encapsulation lamp column is located on the inner side of the top of the transparent branch pipe.

[0012] Preferably, the guide pipe is fixedly inserted through the inner tank layer and extends to the inner side of the support cylinder. The sealing bearing is sleeved on the inner side of the sealing bearing. There are two support cylinders, one of which penetrates the tank body and extends to the outer side of the tank body. The inner side of the support cylinder has an outlet. The outlet is evenly distributed circumferentially on the inner side of the support cylinder. The outlet is located on the opposite side of the tank body and the inner tank layer. The secondary filter cartridge is located on the opposite side of the inner tank layer and the inner tank layer. The microfilter cartridge is located inside the inner tank layer. The servo motor is fixedly installed on the outer side of the tank body through a bracket. The output end of the servo motor is connected to one end of the support cylinder. The opposite ends of the support cylinders are both sealed.

[0013] Preferably, a smart control panel is fixedly installed on the outer side of the tank, and an external bracket is fixedly installed on the outer side of the bottom end of the tank.

[0014] Compared with the prior art, the beneficial effects of the present invention are as follows: 1. The equipment adopts an integrated multi-stage filtration structure of bar screen coarse filtration, rotary microfiltration, multi-media adsorption, and ultrafiltration fine filtration, combined with servo-driven rotary filter cartridge, spiral slag discharge and layered sludge storage structure, which can specifically intercept malt, yeast colloids and suspended impurities in beer wastewater. At the same time, the automatic sludge discharge structure cleans up the deposited sludge in time, effectively avoiding problems such as filter media blockage and water flow deviation, greatly reducing the frequency of equipment maintenance, continuously ensuring the wastewater filtration and purification effect, multi-stage dynamic filtration, strong anti-clogging, and stable treatment effect.

[0015] 2. It integrates multiple treatment processes such as chemical flocculation, gas-assisted disinfection, and ultraviolet sterilization, which can efficiently remove organic matter, color and residual microorganisms from beer wastewater. It solves the problem of large fluctuations in brewing wastewater quality and the presence of colloidal pollutants. The treated water is clean and hygienic, meets the standards for reuse of wastewater in beer and food production, effectively improves water resource utilization, and is energy-saving and environmentally friendly.

[0016] 3. The core components such as internal filters, filter media, and sterilization equipment can all be disassembled and replaced. The treatment configuration can be flexibly adjusted according to the wastewater characteristics of different production processes in breweries, making it highly adaptable. The whole machine has a compact structure and small footprint. It is equipped with an intelligent control system to achieve fully automatic operation, working condition regulation, and safety protection. It is stable in operation, easy to operate, and has a modular and detachable design, making it widely adaptable and intelligent and efficient in operation. Attached Figure Description

[0017] Figure 1 This is a front-view stereoscopic structural diagram of the present invention.

[0018] Figure 2 This is a schematic diagram of the three-dimensional appearance structure of the present invention from a rear-view or upward-view perspective.

[0019] Figure 3 This is a front sectional view of the internal structure of the present invention.

[0020] Figure 4 This is a schematic diagram of the internal structure of the present invention, viewed from the right side.

[0021] Figure 5 For the present invention Figure 3 Enlarged structural diagram at point A in the middle.

[0022] Figure 6 For the present invention Figure 3 Enlarged structural diagram at point B.

[0023] Figure 7 For the present invention Figure 4 Enlarged structural diagram at point C.

[0024] Figure 8 For the present invention Figure 4 Enlarged structural diagram at point D.

[0025] In the diagram: 1. Tank body; 2. Conical top cover; 3. Bellows; 4. Metering pump; 5. Adding pipe; 6. Servo motor; 7. Intelligent control panel; 8. External support; 9. Negative pressure pump; 10. Discharge pipe; 11. Gas adding valve; 12. Electrically controlled automatic sludge discharge valve; 13. Inner tank layer one; 14. Inner tank layer two; 15. Support column; 16. Baffle plate; 17. Grille filter; 18. Transparent branch pipe; 19. Connecting hole; 20. Hollowed-out pressure plate; 1. Quartz sand packing; 22. Activated carbon packing; 23. Externally perforated pressure plate; 24. Ultrafiltration filter element assembly; 25. Baffle cone; 26. Ultraviolet sterilization encapsulation lamp column; 27. Inner flange ring; 28. Outer flange ring; 29. ​​Insert tube; 30. Guide tube; 31. Support cylinder; 32. Sealed bearing one; 33. Spiral plate; 34. Microfiltration cartridge; 35. Sealed bearing two; 36. Discharge port; 37. Secondary filter cartridge; 38. Sealed flange. Detailed Implementation

[0026] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0027] Please see Figures 1-8This invention provides a technical solution: a multi-stage filtration and reuse device for brewery wastewater, comprising a tank 1, a conical top cover 2 sealed to the top of the tank 1 by flange bolts, a bellows pipe 3 connected to the top of the conical top cover 2, a metering pump 4 fixedly installed on the top of the conical top cover 2, an add-in pipe 5 connected to the output end of the metering pump 4, an inner tank layer 13 sleeved inside the tank 1, an inner tank layer 2 14 sleeved inside the inner tank layer 13, and several support columns 15 fixedly installed on opposite sides of the tank 1, the inner tank layer 13, and the inner tank layer 2 14. The top of the inner tank layer 13 is sealed with a cone shield 25, and a sealing flange 38 is fixedly fitted to the outside of the cone shield 25. The top of the inner tank layer 13 is sealed with a grid filter 17, and an outer flange ring 28 is fixedly fitted to the outside of the grid filter 17. A gas adding valve 11 is fixedly installed on the outside of the bottom end of the tank body 1. Four electrically controlled automatic sludge discharge valves 12 are fixedly installed at the bottom of the tank body 1. The bottom of the inner cavity of the inner tank layer 2 14 is connected to a discharge pipe 10, and the other end of the discharge pipe 10 is connected to a negative pressure pump 9. A partition 16 is fixedly fitted inside the bottom end of the inner tank layer 2 14. A transparent branch pipe 18 is fixedly connected to the top, and several connecting holes 19 are opened inside the bottom end of the transparent branch pipe 18. An ultrafiltration filter element assembly 24 is installed on the top of the partition plate 16. An externally perforated pressure plate 23 is placed on the top of the ultrafiltration filter element assembly 24. Activated carbon packing 22 is placed on the top of the externally perforated pressure plate 23. Quartz sand packing 21 is placed on the top of the activated carbon packing 22. A perforated pressure plate 20 is placed on the top of the quartz sand packing 21. An ultraviolet sterilization encapsulation lamp column 26 is installed at the bottom of the perforated pressure plate 20. An insert is fixedly installed inside the sealing flange 38. 29. A guide tube 30 is sealed to the inner side of the insertion tube 29. A sealing bearing 32 is sleeved on the outer side of the other end of the guide tube 30. Two sealing bearings 35 are sleeved through the top of the inner tank layer 13 and the inner tank layer 14. A support cylinder 31 is sleeved on the inner side of the two sealing bearings 35. A secondary filter cylinder 37 is fixedly installed at one end of the support cylinder 31. A micro filter cylinder 34 is fixedly installed on the opposite side of the secondary filter cylinder 37 and the support cylinder 31. A spiral plate 33 is fixedly installed inside the micro filter cylinder 34 and the secondary filter cylinder 37. A servo motor 6 is provided on the outer side of the tank body 1.

[0028] The working principle of the above technical solution is as follows: In use, the corrugated pipe 3 is connected to the wastewater to be treated and introduced into the inner side of the cone top cover 2. First, the wastewater is filtered by the grid filter 17, and the large particles are guided to the opposite side of the tank body 1 and the inner tank layer 13. Then, the water flows on the opposite side of the grid filter 17 and the baffle cone cover 25, and is guided at the top of the sealing flange 38. The negative pressure pump 9 forms a negative pressure at the bottom of the inner cavity of the inner tank layer 14 through the discharge pipe 10. The water flows into the interior of the support cylinder 31 through the guide pipe 30. At this time, the servo motor 6 starts to rotate, driving the support cylinder 31 and the micro-filter cartridge 34 to rotate. A roller microfiltration system is formed. Water flows through the microfilter cartridge 34 and is then introduced into the inner tank layer 14. The filtered particles, as they roll, are conveyed by the spiral plate 33 and gradually pass through the secondary filter cartridge 37. Larger particles are guided to fall onto the opposite sides of the inner tank layer 13 and inner tank layer 14. The largest particles then fall through the outlet 36 onto the opposite sides of the tank body 1 and inner tank layer 13. This multi-media filtration removes suspended solids from the water. Simultaneously, a metering pump 4, connected to an external chemical input device such as a flocculant, is pumped into the inner side of the baffle cone 25 through the addition pipe 5, further filtering the microfilter cartridge 34. The liquid undergoes flocculation treatment to remove tiny particles, reducing clogging. This, combined with filtration by the microfilter cartridge 34 and screening by the secondary filter cartridge 37 and outlet 36, ensures thorough particle treatment and even mixing. The water continues to be filtered and adsorbed by the quartz sand packing 21 and activated carbon packing 22, further reducing particles and increasing filtration cleanliness. Finally, the water is sterilized by ultraviolet sterilization lamp column 26 and then enters the outer side of the ultrafiltration filter element assembly 24 through the guide holes on the outside of the externally perforated pressure plate 23. It is then discharged through the connecting hole 19 and the inner tank layer. The negative pressure adsorption at the bottom of the inner cavity 14, after filtration by the ultrafiltration filter element 24, is discharged and recycled through the discharge pipe 10 and negative pressure pump 9. The gas addition valve 11 is connected to add gas or liquid, such as chlorine dioxide, for combined disinfection, thereby ensuring the effectiveness of the structure. Through multi-media multi-stage filtration to remove suspended solids, activated carbon adsorption to remove organic matter and residual chlorine, and combined with chlorine dioxide and ultraviolet combined sterilization process, the treated process water is deeply disinfected to ensure that the microbiological indicators meet the food production hygiene standards, which is conducive to subsequent treatment and recycling, and increases the effectiveness of use.

[0029] In another implementation scheme, such as Figures 1-8 As shown, the addition tube 5 is fixedly inserted through the corrugated pipe 3 and extends to the inner side of the baffle cone 25. The outer side of the addition tube 5 is connected to the inner side of the grid filter 17 and the baffle cone 25 through a sealing mechanism.

[0030] Adding pipe 5 allows additives to be added to the inside of the baffle cone 25, facilitating flocculation or other additives in the wastewater after multi-stage treatment. The length of adding pipe 5 can be adjusted as needed, such as by cutting and shortening it to connect the opposite sides of the bar screen 17 and the baffle cone 25, and sealing the top through hole of the baffle cone 25. It can be lengthened or shortened according to actual conditions. Furthermore, adding pipe 5 can be replaced with a telescopic pipe to assist in ensuring operational flexibility.

[0031] In another implementation scheme, such as Figures 1-8 As shown, the support columns 15 are evenly distributed in a circular linear pattern on the opposite sides of the tank body 1, inner tank layer 13 and inner tank layer 2 14. The tank body 1, inner tank layer 13 and inner tank layer 2 14 are nested in a hierarchical manner. The bottom of the sealing flange 38 is fitted with an inner flange ring 27 through a sealing ring. The sealing flange 38 and the inner flange ring 27 are sealed and installed through bolts. The outer side of the sealing flange 38 is sealed and fitted to the inner side of the grid filter 17 through a sealing ring. The outer side of the outer flange ring 28 is sealed and installed on the outer side of the top of the inner tank layer 13 through flange bolts.

[0032] The support column 15 supports the opposite sides of the tank body 1, inner tank layer 13, and inner tank layer 2 14, forming a cavity structure for separating and storing filtered sludge, thus increasing structural strength. During disassembly and assembly, the cone top cover 2 is removed from the top of the tank body 1 and removed from the outside of inner tank layer 13 via the outer flange ring 28. The grid filter screen 17 is then removed and replaced with a suitable filter screen. Next, the cone cover 25 is removed via the sealing flange 38 and the inner flange ring 27. The hollow pressure plate 20 and quartz sand packing inside inner tank layer 2 14 are then removed. 21. The activated carbon packing 22, the externally perforated pressure plate 23, and the ultrafiltration filter element assembly 24 can be replaced with different packing combinations to adapt to the wastewater generated by beer production processes in different production lines for targeted treatment. This further increases the flexibility and modular design. The partition 16 can be removed from the bottom mounting position of the perforated pressure plate 20 and replaced with other auxiliary operating mechanisms, such as slow-release disinfectants, for adjustment according to process requirements. This improves the efficiency of use, facilitates disassembly and assembly, increases the convenience of maintenance, and can be disassembled and maintained according to actual needs, thus improving the efficiency of use.

[0033] In another implementation scheme, such as Figure 2 As shown, the output end of the gas adding valve 11 is fixedly connected to the bottom of the inner cavity of the inner tank layer 14, passing through the tank body 1 and the inner tank layer 13.

[0034] The gas adding valve 11 is an external gas or liquid supply device used to unidirectionally input auxiliary gas and liquid into the inner tank layer 14 to assist in operations, such as inputting chlorine dioxide, thereby increasing the chemical treatment capacity and indirectly improving the usage effect.

[0035] In another implementation scheme, such as Figures 1-4 As shown, the four electrically controlled automatic sludge discharge valves 12 are arranged in pairs. The tops of the two pairs of electrically controlled automatic sludge discharge valves 12 are respectively connected to the bottom of the inner cavity of inner tank layer 13 and inner tank layer 2 14. The four electrically controlled automatic sludge discharge valves 12 are evenly distributed in a circle at the bottom of the tank body 1.

[0036] The electrically controlled automatic sludge discharge valve 12 discharges the sediment from inner tank layer 13 and inner tank layer 2 14 on the opposite side of inner tank layer 13 and tank body 1 at fixed points. It automatically discharges the sediment at fixed points and in fixed quantities according to the sediment conditions, achieving the effect of discharging only sludge and not water, ensuring stable internal pressure, and preventing water from flowing in one direction and being discharged from the bottom. The two components are connected and discharged separately, ensuring the stability of the structure and increasing the effectiveness of use.

[0037] In another implementation scheme, such as Figures 1-4 As shown, the discharge pipe 10 is fixedly installed through the inner tank layer 13 and the tank body 1 and extends to the outside of the tank body 1. The negative pressure pump 9 is fixedly installed on the ground by bolts. An electrically controlled flow regulating valve is installed inside the discharge pipe 10.

[0038] The discharge pipe 10 draws negative pressure from the bottom of the inner cavity of the inner tank layer 2 14 and the bottom of the partition 16, stabilizing the liquid flow and applying negative pressure to the top filter to ensure relatively stable filtration and improve the performance. The internal filtration flow rate and processing capacity are adjustable by adjusting the power of the negative pressure pump 9 and the electronically controlled flow regulating valve, making it suitable for wastewater treatment in different beer production line processes and indirectly improving the performance.

[0039] In another implementation scheme, such as Figures 3-8 As shown, the connecting holes 19 are evenly distributed in a circular linear pattern inside the bottom of the transparent branch pipe 18. The ultrafiltration filter element assembly 24 is sealed and fitted on the opposite side of the transparent branch pipe 18 and the inner tank layer 14. The distribution position of the connecting holes 19 is adapted to the specifications and dimensions of the ultrafiltration filter element assembly 24. The externally perforated pressure plate 23 is sealed and fitted on the opposite side of the transparent branch pipe 18 and the inner tank layer 14. The outer side of the externally perforated pressure plate 23 is provided with a flow guide hole. The quartz sand packing 21 and activated carbon packing 22 are distributed on the opposite side of the transparent branch pipe 18 and the inner tank layer 14. The hollow pressure plate 20 is fitted on the inner side of the inner tank layer 14. The bottom of the hollow pressure plate 20 is sealed and plugged with the top of the transparent branch pipe 18 through a sealing structure. The ultraviolet sterilization encapsulation lamp column 26 is located on the inner side of the top of the transparent branch pipe 18.

[0040] The water flow is filtered and adsorbed by the quartz sand filler 21 and activated carbon filler 22, further reducing particles and increasing filtration cleanliness. Finally, the water flow is disinfected under the irradiation of the ultraviolet sterilization encapsulation lamp column 26, and then enters the outer side of the ultrafiltration filter element assembly 24 through the guide hole on the outside of the externally perforated pressure plate 23. It is discharged through the connecting hole 19 and adsorbed by the negative pressure at the bottom of the inner tank layer 2 14. After being filtered by the ultrafiltration filter element assembly 24, it is discharged and recycled through the discharge pipe 10 and the negative pressure pump 9. The internal filler and filtration structure can be replaced as needed, ensuring that the structure can be changed as needed to serve the different process requirements of the beer production line, indirectly increasing the use effect. The overall result is integrated, reducing the size and space occupied, and increasing the use effect. The length of the ultraviolet sterilization encapsulation lamp column 26 can be replaced and disassembled at the bottom of the hollow pressure plate 20 as needed.

[0041] In another implementation scheme, such as Figures 3-8 As shown, the guide pipe 30 is fixedly inserted through the inner tank layer 13 and extends to the inner side of the support cylinder 31. The sealing bearing 32 is sleeved on the inner side of the sealing bearing 32. There are two support cylinders 31. One of the support cylinders 31 is inserted through the tank body 1 and extends to the outer side of the tank body 1. The inner side of the support cylinder 31 is provided with an outlet 36. The outlet 36 is evenly distributed in a circle on the inner side of the support cylinder 31. The outlet 36 is located on the opposite side of the tank body 1 and the inner tank layer 13. The secondary filter cartridge 37 is located on the opposite side of the inner tank layer 13 and the inner tank layer 2 14. The microfilter cartridge 34 is located inside the inner tank layer 2 14. The servo motor 6 is fixedly installed on the outer side of the tank body 1 by a bracket. The output end of the servo motor 6 is connected to one end of the support cylinder 31. The opposite ends of the support cylinder 31 are both sealed.

[0042] The servo motor 6 starts rotating, driving the support cylinder 31 and the microfilter cylinder 34 to rotate, forming a roller microfilter group. After the water flows through the microfilter cylinder 34, the water flows into the interior of the inner tank layer 14. The filtered particles are gradually guided by the spiral plate 33 as they roll, and the larger particles are guided to fall onto the opposite sides of the inner tank layer 13 and the inner tank layer 14 through the secondary filter cylinder 37. Then the largest particles fall onto the opposite sides of the tank body 1 and the inner tank layer 13 through the outlet 36, thus filtering out the suspended solids in the water, which facilitates treatment, reduces clogging, reduces maintenance frequency, and increases the effectiveness of use.

[0043] In another implementation scheme, such as Figures 1-4 As shown, a smart control panel 7 is fixedly installed on the outside of the tank body 1, and an external bracket 8 is fixedly installed on the outside of the bottom end of the tank body 1.

[0044] The output of the intelligent control panel 7 is electrically connected to the input of the metering pump 4, servo motor 6, negative pressure pump 9, gas adding valve 11, electrically controlled flow regulating valve, electrically controlled automatic sludge discharge valve 12, and ultraviolet sterilization encapsulated lamp column 26 via wires. The intelligent control panel 7 is an intelligent control hardware with a built-in intelligent system, including but not limited to the following functional units. The intelligent control panel 7 of this equipment serves as the central hub of the whole machine operation, integrating seven major linkage control units. Relying on all supporting mechanical, power, and filter elements, it realizes fully automatic continuous filtration treatment of beer wastewater. Each unit works together to ensure stable operation of the equipment: 1. Chemical and gas addition control unit: The panel precisely controls the metering pump 4, adding pipe 5, and gas adding valve 11. It sets the chemical addition flow rate and aeration air intake according to the pH and organic concentration of the beer wastewater. With the help of the cone top cover 2 and corrugated pipe 3 to seal the chemical addition pipeline, the chemical and gas are evenly delivered to complete the neutralization and flocculation pretreatment of the wastewater, which is suitable for the acid-base fluctuation and high colloidal suspended solids characteristics of brewing wastewater. II. Servo Self-Control Unit: Controls servo motor 6 and microfilter cartridge 34. The motor drives rotation for filtration, reducing clogging. The grid filter 17 pre-intercepts large particles of impurities, reducing the load on the filter media. III. Negative Pressure Water Circulation Control Unit: The panel adjusts the output power of the negative pressure pump 9 and the flow rate of the electrically controlled flow regulating valve in real time, controlling the negative pressure inside the tank. This drives the wastewater to flow in layers through the connecting hole 19, passing sequentially through the grid filter 17, microfilter cartridge 34, quartz sand packing 21, activated carbon packing 22, and ultrafiltration filter element assembly 24 to complete multi-stage filtration. The external support 8 and pillar 15 stabilize the tank 1 under pressure. The purified water is discharged or reused through the discharge pipe 10. The externally perforated pressure plate 23 and baffle cone 25 balance the water flow distribution, preventing localized filter media deflection and failure. IV. Automatic Sludge Discharge Control Unit: The panel features two sludge discharge modes: turbidity linkage and timed discharge. It controls the electrically controlled automatic sludge discharge valve 12. When the malt residue and sludge accumulated at the bottom of the double-layer inner tank reach a set threshold, the valve automatically opens, discharging the settled sludge through the sealing flange 38, preventing sludge accumulation from causing water quality deterioration and filter clogging. V. Ultraviolet Sterilization Control Unit: The panel independently controls the ultraviolet sterilization lamp column 26, allowing for customized sterilization duration and start / stop cycles. This kills residual yeast and microorganisms in wastewater, meeting the sterilization requirements for reclaimed water reuse. VI. Operational Condition Monitoring and Visualization Unit: The panel collects real-time data on tank pressure difference, effluent turbidity, and equipment operating current. Combined with observation of the stratified filtration effluent status, it facilitates operators in calibrating dosing, negative pressure, and cleaning parameters based on panel parameters. VII. Overall Safety Interlocking Protection Unit: The panel integrates overload, excessive negative pressure, liquid level exceeding limit, motor failure, and pipeline leakage alarm interlocking programs. It monitors the operating status of metering pump 4, negative pressure pump 9, and servo motor 6 in real time. When the bellows 3, each sealing bearing, or flange experiences abnormal negative pressure and seal failure, or when the equipment is overloaded, it immediately triggers an audible and visual alarm and links to stop the machine. It also prevents mutual interference between processes by isolating the filtration, sludge, and sterilization chambers in different zones, providing comprehensive protection for the tank 1 and all internal filter components to continuously and stably treat beer wastewater.

[0045] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A multi-stage filtration and reuse device for brewery wastewater, comprising a tank (1), characterized in that: The top of the tank (1) is sealed with a conical top cover (2) by flange bolts. The top of the conical top cover (2) is connected to a bellows pipe (3). A metering pump (4) is fixedly installed on the top of the conical top cover (2). The output end of the metering pump (4) is connected to an addition pipe (5). An inner tank layer one (13) is sleeved on the inner side of the tank (1). An inner tank layer two (14) is sleeved on the inner side of the inner tank layer one (13). Several support columns (15) are fixedly installed on the opposite sides of the tank (1), the inner tank layer one (13), and the inner tank layer two (14). A baffle cone cover (25) is sealed on the top of the inner tank layer two (14). The outer side of the baffle cone cover (25) is fixed. A sealing flange (38) is fitted on the top of the inner tank layer one (13), a grid filter (17) is fitted on the top, an outer flange ring (28) is fitted on the outside of the grid filter (17), a gas adding valve (11) is fixedly installed on the outside of the bottom end of the tank body (1), four electrically controlled automatic mud discharge valves (12) are fixedly installed on the bottom of the tank body (1), a discharge pipe (10) is connected to the bottom of the inner cavity of the inner tank layer two (14), the other end of the discharge pipe (10) is connected to a negative pressure pump (9), a partition plate (16) is fixedly fitted on the inside of the bottom end of the inner tank layer two (14), and a transparent branch pipe (18) is fixedly fitted on the inside of the top of the partition plate (16). The bottom end of the transparent branch pipe (18) has several connecting holes (19). The top of the partition plate (16) is equipped with an ultrafiltration filter element assembly (24). The top of the ultrafiltration filter element assembly (24) is placed with an externally perforated pressure plate (23). The top of the externally perforated pressure plate (23) is equipped with activated carbon packing (22). The top of the activated carbon packing (22) is equipped with quartz sand packing (21). The top of the quartz sand packing (21) is equipped with a perforated pressure plate (20). The bottom of the perforated pressure plate (20) is equipped with an ultraviolet sterilization encapsulation lamp column (26). The inside of the sealing flange (38) is fixedly installed with a tube (29). A guide tube (30) is sealed on the inner side, and a sealing bearing (32) is sleeved on the outer side of the other end of the guide tube (30). Two sealing bearings (35) are sleeved through the top of the inner tank layer 1 (13) and the inner tank layer 2 (14). A support cylinder (31) is sleeved on the inner side of the two sealing bearings (35). A secondary filter cylinder (37) is fixedly installed at one end of the support cylinder (31). A micro filter cylinder (34) is fixedly installed on the opposite side of the secondary filter cylinder (37) and the support cylinder (31). A spiral plate (33) is fixedly installed inside the micro filter cylinder (34) and the secondary filter cylinder (37). A servo motor (6) is provided on the outer side of the tank body (1).

2. The multi-stage filtration and reuse equipment for brewery wastewater according to claim 1, characterized in that: The adding tube (5) is fixedly inserted through the corrugated pipe (3) and extends to the inside of the baffle cone (25). The outside of the adding tube (5) is connected to the inside of the grid filter (17) and the baffle cone (25) by a sealing and movable connection.

3. The multi-stage filtration and reuse equipment for brewery wastewater according to claim 1, characterized in that: The support column (15) is evenly distributed in a circular linear pattern on the opposite sides of the tank body (1), inner tank layer one (13) and inner tank layer two (14). The tank body (1), inner tank layer one (13) and inner tank layer two (14) are nested in a hierarchical manner. The bottom of the sealing flange (38) is fitted with an inner flange ring (27) by a sealing ring. The sealing flange (38) and the inner flange ring (27) are sealed and installed through bolts. The outer side of the sealing flange (38) is sealed and fitted to the inner side of the grid filter (17) by a sealing ring. The outer side of the outer flange ring (28) is sealed and installed on the outer side of the top of the inner tank layer one (13) by flange bolts.

4. The multi-stage filtration and reuse equipment for brewery wastewater according to claim 1, characterized in that: The output end of the gas adding valve (11) is fixedly inserted through the tank body (1) and the inner tank layer one (13) and connected to the bottom of the inner cavity of the inner tank layer two (14).

5. The multi-stage filtration and reuse equipment for brewery wastewater according to claim 1, characterized in that: The four electrically controlled automatic mud discharge valves (12) are arranged in pairs. The tops of the two sets of electrically controlled automatic mud discharge valves (12) are respectively connected to the bottom of the inner cavity of the first inner tank layer (13) and the second inner tank layer (14). The four electrically controlled automatic mud discharge valves (12) are evenly distributed in a circle at the bottom of the tank body (1).

6. The multi-stage filtration and reuse equipment for brewery wastewater according to claim 1, characterized in that: The discharge pipe (10) is fixedly inserted through the inner tank layer (13) and the tank body (1) and extends to the outside of the tank body (1). The negative pressure pump (9) is fixedly installed on the ground by bolts. An electrically controlled flow regulating valve is provided inside the discharge pipe (10).

7. The multi-stage filtration and reuse equipment for brewery wastewater according to claim 1, characterized in that: The connecting holes (19) are evenly distributed in a circular linear pattern inside the bottom end of the transparent branch pipe (18). The ultrafiltration filter element assembly (24) is sealed and fitted on the opposite sides of the transparent branch pipe (18) and the inner tank layer two (14). The distribution position of the connecting holes (19) is adapted to the specifications and dimensions of the ultrafiltration filter element assembly (24). The externally perforated pressure plate (23) is sealed and fitted on the opposite sides of the transparent branch pipe (18) and the inner tank layer two (14). 23) has a flow guide hole on the outside. The quartz sand filler (21) and activated carbon filler (22) are distributed on the opposite side of the transparent branch pipe (18) and the inner tank layer two (14). The hollow pressure plate (20) is sleeved on the inner side of the inner tank layer two (14). The bottom of the hollow pressure plate (20) is sealed to the top of the transparent branch pipe (18) through a sealing structure. The ultraviolet sterilization encapsulation lamp column (26) is located on the inner side of the top of the transparent branch pipe (18).

8. The multi-stage filtration and reuse equipment for brewery wastewater according to claim 1, characterized in that: The guide pipe (30) is fixedly inserted through the inner tank layer (13) and extends to the inner side of the support cylinder (31). The sealing bearing (32) is sleeved on the inner side of the sealing bearing (32). There are two support cylinders (31), one of which penetrates the tank body (1) and extends to the outer side of the tank body (1). The inner side of the support cylinder (31) is provided with an outlet (36). The outlets (36) are evenly distributed circumferentially on the inner side of the support cylinder (31). The outlet (36) is located on the opposite side of the tank body (1) and the inner tank layer one (13). The secondary filter cartridge (37) is located on the opposite side of the inner tank layer one (13) and the inner tank layer two (14). The micro filter cartridge (34) is located inside the inner tank layer two (14). The servo motor (6) is fixedly installed on the outside of the tank body (1) by a bracket. The output end of the servo motor (6) is connected to one end of the support cylinder (31). The opposite ends of the support cylinder (31) are all sealed.

9. A multi-stage filtration and reuse device for brewery wastewater according to claim 1, characterized in that: A smart control panel (7) is fixedly installed on the outside of the tank (1), and an external bracket (8) is fixedly installed on the outside of the bottom end of the tank (1).

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