Advanced treatment and recycling equipment for industrial wastewater

Abstract

The invention relates to the technical field of industrial water treatment, and discloses industrial wastewater advanced treatment and recycling equipment which comprises a water tank composed of an upper cover, a box body and a lower cover, a plurality of ultrafiltration membrane assemblies arranged in the water tank and a fixing frame composed of an upper disc, a stand column and a lower disc. A plurality of ultrafiltration membrane components are rotationally mounted in the water tank through a hollow shaft, and a driving mechanism for driving the ultrafiltration membrane components to rotate and revolve back and forth is also arranged, so that the ultrafiltration membrane components move at a low speed to form scouring force with raw water, impurities are prevented from being attached to the surfaces of membrane wires, and the circulation amount of micropores is ensured. According to the advanced treatment and recycling equipment for the industrial wastewater, a low-speed rotation and reciprocating revolution mode is adopted, so that an ultrafiltration membrane and raw water can form moderate scouring force, impurities in the raw water cannot be attached to the surfaces of membrane filaments, and the impurities on the ultrafiltration membrane filaments can be safely cleaned in an auxiliary manner by adopting an ultrasonic technology.

Description

Technical Field

[0001] The present invention relates to the technical field of industrial water treatment, in particular to industrial wastewater deep treatment and reuse equipment. Background Art

[0002] The direct reuse of industrial wastewater after proper treatment is an important direction for sustainable water resource management, but whether it can be reused and the way of reuse depend on the source of the wastewater, the characteristics of the pollutants, the depth of the treatment process and the quality requirements of the reused water. The main types of industrial wastewater, treatment processes and typical reuse scenarios currently include drainage from cooling water systems. The characteristics of cooling water are large water volume and relatively simple pollutants (mainly salt, corrosion and scale inhibitor residues, microorganisms, and suspended solids). At present, the treatment process is to first pre-treat, filter (multi-media / activated carbon / precision filter), sterilize (ultraviolet / sodium hypochlorite), reverse osmosis (RO), electrodialysis (ED), ion exchange (suitable for low-salt wastewater), and then add new scale inhibitors. It can be refluxed for replenishing the circulating cooling system, and secondly, there are production processes. Process cleaning water (low pollution), including electronics (chip / panel cleaning), electroplating (rinsing water), food and beverage (container / equipment flushing), the pollutant concentration in the raw water is low (may contain trace organic matter, particulate matter, ions), and it is also deeply purified through filtration (ultrafiltration UF / microfiltration MF), membrane separation (nanofiltration NF / RO), or activated carbon adsorption, ozone oxidation (degradation of trace organic matter). The filtered water can be used for high-purity water preparation raw water (electronics industry) or production line cleaning water reuse (to achieve closed-loop circulation) and cooling tower water replenishment, etc.

[0003] At present, although the filtration and purification technology used in the above-mentioned wastewater treatment can achieve the purpose of wastewater reuse, the ultrafiltration machine currently used for filtering wastewater adopts a fixed ultrafiltration membrane installation method. The ultrafiltration membrane is static in the raw water. It is difficult to make impurities fall from the surface of the ultrafiltration membrane wire by relying solely on the slow flow of raw water. Impurities are easily blocked in the micropores on the ultrafiltration membrane, affecting the membrane flux. Forced flushing will cause the ultrafiltration membrane to be excessively tortuous and uneven flushing. Summary of the Invention

[0004] (1) Technical problems solved

[0005] In response to the shortcomings of the existing technology, the present invention provides an industrial wastewater deep treatment and reuse equipment, which solves the problem of fixed ultrafiltration membrane installation in the existing technology. The ultrafiltration membrane is static in the raw water, and it is difficult to make impurities fall from the surface of the ultrafiltration membrane wire by relying solely on the slow flow of raw water. Impurities are easily blocked in the micropores on the ultrafiltration membrane, affecting the membrane flux. Forced flushing will cause the ultrafiltration membrane to be excessively tortuous and the flushing to be uneven.

[0006] (2) Technical solution

[0007] To achieve the above-mentioned objectives, the present invention provides the following technical solutions: an industrial wastewater deep treatment and reuse equipment, comprising a water tank consisting of an upper cover, a box body, and a lower cover, and a plurality of ultrafiltration membrane assemblies disposed in the water tank, and further comprising:

[0008] The fixing frame consists of an upper plate, a column and a lower plate. It is installed in the water tank and rotates multiple ultrafiltration membrane modules through a hollow shaft. It is also equipped with a driving mechanism that drives the multiple ultrafiltration membrane modules to rotate and reciprocate, so that the ultrafiltration membrane modules can move at a low speed and form a flushing force with the raw water, preventing impurities from adhering to the membrane surface and ensuring the flow rate of the micropores.

[0009] A drainage assembly is installed in the box body and supported by a water guide pipe, and collects the clean water filtered by multiple ultrafiltration membrane assemblies for centralized discharge;

[0010] The temperature control mechanism uses a spiral pipe to circulate and push the raw water under the fixed frame to form an upward vortex, which is used to flush the ultrafiltration membrane components and can also transport disinfectants and airflow to achieve disinfection and temperature control.

[0011] As a further description of the above technical solution, the column is fixed at the center of the lower plate, the upper end of the column is provided with a threaded column, the upper end of the threaded column is fixedly connected to the rotating shaft, the center of the upper plate is provided with a circular hole that matches the threaded column, the threaded column passes through the circular hole on the surface of the upper plate and is threadedly connected to a nut, and the center of the upper cover is fixedly connected to a sleeve that matches the diameter of the rotating shaft;

[0012] The lower plate is a hollow structure and is rotatably connected to the wall of the water pipe at the center of the lower end through a sealed bearing. The water pipe is socketed with the center of the drainage component. A fixed component is provided on the opposite side of the upper plate and the lower plate, and the fixed component is scattered with the vertical axis as the axis center.

[0013] As a further description of the above technical solution, the fixed assembly includes an upper disc and a lower disc, and the upper disc and the lower disc are respectively fixedly connected to the hollow shaft at the corresponding position coaxially, and one end of the hollow shaft is fixedly connected to a sleeve, and a plurality of rubber rings are embedded in the sleeve, and the sleeve is connected to the hollow shaft, and the hollow shaft on the upper disc is rotatably connected to the side wall of the upper disc through a sealed bearing, and is sealed at its end, and the hollow shaft on the lower disc is rotatably connected to the side wall of the lower disc through a sealed bearing, and its end is connected to the cavity inside the lower disc, and the upper and lower ends of the ultrafiltration membrane assembly are both engaged in the sleeves at the corresponding positions.

[0014] The side wall of the upper disc is fixedly connected with a gear ring, and the gear ring is used to realize linkage between adjacent upper discs. The driving mechanism is installed on the side wall of the upper cover.

[0015] As a further description of the above technical solution, an isolation cover is sleeved on the outer side of the ultrafiltration membrane assembly, and the isolation cover is composed of a plurality of curved panels and a plurality of support rings. The upper and lower discs are provided with a card slot on the opposite side thereof that matches the curved panel structure. The isolation cover is clamped between the upper and lower discs through the provided card slot and is arranged coaxially with the ultrafiltration membrane assembly. The side walls of the upper and lower discs are provided with a plurality of fan-shaped holes, and a plurality of ultrasonic transducers are fixedly connected to the plurality of fan-shaped holes of the lower disc. The side walls of the box are provided with a sealing joint to connect the cables of the ultrasonic transducers.

[0016] As a further description of the above technical solution, the drainage assembly includes multiple support tubes, and the multiple support tubes are fixed in the box body. The side wall of the box body is fixedly connected to a drainage head. A water collecting part is provided at the junction of the multiple support tubes. The water collecting part is provided with a ring. A rubber sleeve is embedded in the ring. The rubber sleeve is connected to the pipe wall of the water pipe. A positioning ring is provided at the upper end of the water collecting part, and a positioning groove that cooperates with the positioning ring is provided at the lower end of the lower plate.

[0017] As a further description of the above technical solution, the driving mechanism includes a synchronous belt, a plurality of synchronous wheels are sleeved in the synchronous belt, and the plurality of synchronous wheels are respectively fixed to the upper end of the hollow shaft on the fixed frame, and the upper end of the fixed frame is equipped with a plurality of tensioning wheels, and the plurality of tensioning wheels are in contact with the smooth surface of the synchronous belt. The side wall of the upper cover is rotatably connected to the rotating shaft through the bearing seat, and the side wall of the rotating shaft is fixedly connected to the first gear, the first gear is meshed with the second gear, and the second gear is fixedly connected to the shaft wall of one of the hollow shafts. The upper end of the fixed frame is located below the rotating shaft and is fixedly connected to a rectangular frame, the lower end of the rotating shaft is fixedly connected to a rocker arm, and one end of the rocker arm is fixedly connected to an axle pin slidably sleeved with the rectangular frame, and the upper end of the upper cover is fixedly connected to a reduction motor, and the output end of the reduction motor is fixedly connected to the upper end of the rotating shaft coaxially.

[0018] As a further description of the above technical solution, the temperature control mechanism includes a spiral tube and a straight tube, one end of the straight tube is fixedly connected to one end of the spiral tube, the other end of the straight tube passes through the box and is fixedly connected to a connecting plate, and one side of the connecting plate is fixedly connected to a stepping motor, two circular rings are fixedly connected in the straight tube, the inner side of one of the circular rings is rotatably connected to the drive shaft through a sealed bearing, and the inner side of the other circular ring is rotatably connected to the circular tube through a sealed bearing, the circular tube is fixedly connected to the drive shaft coaxially, the output end of the stepping motor is fixedly connected to one end of the drive shaft, an impeller is connected to the tube wall of the circular tube, a water inlet is opened on the tube wall of the straight tube at a position corresponding to the impeller, an air intake channel is opened on the axial wall of the circular tube, one end of the circular tube is fixedly connected to an aeration head, and two air inlet joints are fixedly connected to the tube wall of the straight tube outside the box, one of the air inlet joints is communicated with the space between the two circular rings in the straight tube, and the connection between the other air inlet joint and the straight tube is located at the rear side of the impeller.

[0019] As a further description of the above technical solution, the opposite ends of the box body and the lower cover are both clamped with sealing rings through the clamping parts, and the opposite ends of the box body and the lower cover are both provided with fixing parts, and a conical frame is clamped between the two fixing parts, and a conical filter cloth is provided at the lower end of the conical frame. The lower end of the fixing part on the box body is fixedly connected with a positioning pin, and the fixing part on the lower cover and the conical filter cloth are both provided with positioning holes that cooperate with the positioning pin.

[0020] As a further description of the above technical solution, a plurality of internally threaded tubes are fixedly connected to the upper end of the fixed portion on the box body, and an annular plate is commonly provided at the upper ends of the plurality of internally threaded tubes. The annular plate is connected to the internally threaded tubes by bolts, and a cyclone is fixedly connected to the inner side of the annular plate. A circulating pump is fixedly connected to the outer side of the box body, and the water inlet end of the circulating pump is fixedly connected to the side wall of the box body through a bend pipe. The water outlet end of the circulating pump is fixedly connected to the water inlet end of the cyclone through a drain pipe. The conical filter cloth and the conical frame are both provided with through holes that cooperate with the cyclone housing.

[0021] As a further description of the above technical solution, the upper cover, the box body and the lower cover are all fixedly connected by bolts, the lower cover is an inverted cone structure and a water inlet pipe is fixed at the center of the bottom, one end of the water inlet pipe extends into the water tank and is fixedly connected to an inclined nozzle, the side wall of the lower cover is circumferentially fixed with a plurality of legs, and the side wall of the upper cover is fixedly connected with an electric control valve and a sensor assembly.

[0022] (3) Beneficial effects

[0023] Compared with the prior art, the present invention provides an industrial wastewater deep treatment and reuse equipment, which has the following beneficial effects:

[0024] 1. By placing the ultrafiltration membrane in a low-speed, small-range dynamic filtration condition, a certain flushing force is formed between the ultrafiltration membrane filaments and the water body, making it difficult for impurities to adhere to and clog the micropores of the ultrafiltration membrane filaments. By placing multiple ultrafiltration membrane components in a low-pressure state, a pressure difference is naturally formed inside and outside the ultrafiltration membrane filaments using the liquid level height in the water tank, preventing impurities from clogging the micropores on the surface of the membrane filaments due to the pressurized state.

[0025] 2. The rotation of the impeller generates thrust on the water. At this time, the raw water can enter the spiral tube from the water inlet and be discharged from the other end of the spiral tube. At this time, under the impact of the water flow, the raw water in the water tank can generate a vortex, and because the drain outlet of the spiral tube is inclined upward, the discharged water can have an upward flow. In order to enhance the disinfection effect of the raw water, chlorine gas for disinfection can be delivered to the space between the two rings through one of the air inlet joints. After passing through the air inlet channel, the chlorine is transported through the circular tube and finally forms small bubbles from the aeration head and dissolves in the raw water. After flowing through the spiral tube with the raw water, it is discharged into the water tank. When temperature control is required, low-temperature air can be delivered from another air inlet joint located on the rear side of the impeller. The temperature is reduced by full contact between air and raw water. At this time, the electric control valve on the upper end of the upper cover needs to be opened for exhaust to increase the flow rate of the air flow, which can achieve rapid cooling of the cooling water. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 This is a structural schematic diagram of an industrial wastewater deep treatment and reuse equipment proposed by the present invention;

[0027] Figure 2 The present invention proposes an industrial wastewater deep treatment and reuse equipment Figure 1 sectional view of

[0028] Figure 3 This is a schematic structural diagram of a fixing frame in an industrial wastewater deep treatment and reuse equipment proposed by the present invention;

[0029] Figure 4 This is a structural diagram of the lower plate and drainage components of an industrial wastewater deep treatment and reuse equipment proposed by the present invention;

[0030] Figure 5 This is a schematic structural diagram of an ultrafiltration membrane assembly and an isolation cover in an industrial wastewater deep treatment and reuse equipment proposed by the present invention;

[0031] Figure 6 This is a structural schematic diagram of the upper cover of an industrial wastewater deep treatment and reuse equipment proposed by the present invention;

[0032] Figure 7 This is a structural diagram of the lower cover and box body of an industrial wastewater deep treatment and reuse equipment proposed by the present invention;

[0033] Figure 8 This is a schematic structural diagram of a temperature control mechanism in an industrial wastewater deep treatment and reuse equipment proposed by the present invention;

[0034] Figure 9 The present invention proposes an industrial wastewater deep treatment and reuse equipment Figure 2 A magnified view of the structure at point A;

[0035] Figure 10 The present invention proposes an industrial wastewater deep treatment and reuse equipment Figure 5 A magnified view of the structure at B in the middle;

[0036] Figure 11 This is a schematic structural diagram of an annular plate and a cyclone in an industrial wastewater deep treatment and reuse equipment proposed by the present invention;

[0037] Figure 12 This is a structural schematic diagram of the gear ring, upper disc and sleeve in the industrial wastewater deep treatment and reuse equipment proposed by the present invention.

[0038] In the figure: 1. Box; 2. Upper cover; 3. Electric control valve; 4. Bushing; 5. Reducer motor; 6. Sensor assembly; 7. Stepper motor; 8. Lower cover; 9. Water inlet pipe; 10. Circulation pump; 11. Cyclone; 12. Ring plate; 13. Spiral tube; 14. Support tube; 15. Isolation cover; 16. Upper plate; 17. Synchronous belt; 18. Ultrasonic transducer; 19. Lower plate; 20. Straight pipe; 21. Conical filter cloth; 22. Conical filter cloth Frame; 23. Synchronous wheel; 24. Second gear; 25. Rectangular frame; 26. Upper disc; 27. Gear ring; 28. Sleeve; 29. ​​Rotating shaft; 30. Column; 31. Lower disc; 32. Tensioner; 33. Water guide pipe; 34. Rubber sleeve; 35. Ultrafiltration membrane assembly; 36. First gear; 37. Rocker arm; 38. Internally threaded pipe; 39. Positioning pin; 40. Sealing ring; 41. Round pipe; 42. Impeller; 43. Aeration head. DETAILED DESCRIPTION

[0039] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0040] like Figure 1-12 As shown, the present invention provides an industrial wastewater deep treatment and reuse equipment, including a water tank composed of an upper cover 2, a box body 1 and a lower cover 8, and a plurality of ultrafiltration membrane components 35 arranged in the water tank, such as Figure 2As shown in FIG, a plurality of ultrafiltration membrane modules 35 are grouped into four, which can be designed into 3 to 10 groups. The figure shows a design structure of 6 groups, and further includes:

[0041] The fixing frame is coaxially arranged with the water tank and is used to load multiple ultrafiltration membrane assemblies 35 so that they can be evenly arranged in the water tank. The specific structure is that the fixing frame is composed of an upper plate 16, a column 30 and a lower plate 19. It is installed in the water tank and rotates to install multiple ultrafiltration membrane assemblies 35 through a hollow shaft. A driving mechanism is also provided to drive the multiple ultrafiltration membrane assemblies 35 to rotate and reciprocate, so that the ultrafiltration membrane assemblies 35 can move at a low speed to form a flushing force with the raw water, thereby preventing impurities from adhering to the surface of the membrane filaments and ensuring the flow rate of the micropores;

[0042] Compared with the fixed ultrafiltration membrane installation method in the prior art, the ultrafiltration membrane is placed statically in the raw water. It is difficult to make impurities fall from the surface of the ultrafiltration membrane wire by relying solely on the slow flow of raw water. Impurities are easily blocked in the micropores on the ultrafiltration membrane, affecting the membrane flux. Forced flushing will cause the ultrafiltration membrane to be excessively tortuous and the flushing to be uneven. Through the above-mentioned technical solution, a method of low-speed rotation and reciprocating revolution is adopted, so that the ultrafiltration membrane can form a moderate flushing force with the raw water, so that impurities in the raw water will not adhere to the surface of the membrane wire, and a drainage component is designed below the fixed frame in the box, such as Figure 2 and Figure 4 As shown, the drainage assembly is installed in the box body 1 and supported by the water pipe 33, and collects the clean water filtered by multiple ultrafiltration membrane assemblies 35 for centralized discharge;

[0043] The specific structure of the above-mentioned drainage mechanism is: the drainage component is provided with multiple support tubes 14, and the multiple support tubes 14 are all fixed in the box body 1. The side wall of the box body 1 is fixedly connected with a drainage head, which is directly connected to the support tube 14 and can quickly discharge the purified water. The joint of the multiple support tubes 14 is provided with a water collecting part, and the water collecting part is provided with a ring. A rubber sleeve 34 is embedded in the ring. The rubber sleeve 34 is sleeved with the pipe wall of the water guide pipe 33. The upper end of the water collecting part is provided with a positioning ring, and the lower end of the lower plate 19 is provided with a positioning groove matching the positioning ring. By adopting multiple support tubes 14 for synchronous drainage, not only can the water be drained quickly, but also the interior of the multiple ultrafiltration membrane components 35 can be in a low-pressure state, so that the pressure difference is naturally formed inside and outside the ultrafiltration membrane wire using the liquid level height in the water tank, preventing impurities from clogging the micropores on the surface of the membrane wire due to the pressurized state.

[0044] Since this technical solution is mainly used for cooling water and cleaning water for production, the temperature of the raw water during purification will exceed the working temperature of the ultrafiltration membrane. Therefore, it is necessary to consider designing a temperature control mechanism inside the equipment. Specifically, a spiral tube 13 is used under the fixed frame to circulate and push the raw water to form an upward vortex flow, and the vortex flow is used to flush the ultrafiltration membrane assembly 35. It can also transport disinfectant and airflow to achieve disinfection and temperature control. Figure 2 and Figure 8 As shown, the two pipe openings of the spiral tube 13 have a height difference, and the water inlet position is higher than the water outlet position. Therefore, when the water is discharged, the swirling raw water can be discharged upward at an angle. At this time, the swirling flow formed can contact the ultrafiltration membrane wire from multiple angles, so that impurities are taken away from the membrane wire surface.

[0045] The above technical solution is different from the existing technology when used. By putting the ultrafiltration membrane in a low-speed and small-range dynamic filtration condition, a certain flushing force is formed between the ultrafiltration membrane filaments and the water body, making it difficult for impurities to adhere to and block the micropores of the ultrafiltration membrane filaments. It can also be used by putting the interior of multiple ultrafiltration membrane components 35 in a low-pressure state, so that a pressure difference is naturally formed inside and outside the ultrafiltration membrane filaments using the liquid level height in the water tank, thereby preventing impurities from clogging the micropores on the surface of the membrane filaments due to the pressurized state.

[0046] like Figure 3 and Figure 4 As shown, the present technical solution adopts an assembled fixing frame to install multiple ultrafiltration membrane assemblies 35, specifically by fixing the column 30 at the center of the lower plate 19, and a threaded column is provided at the upper end of the column 30, and the upper end of the threaded column is fixedly connected to the rotating shaft 29, and a circular hole matching the threaded column is opened at the center of the upper plate 16. The threaded column passes through the circular hole on the surface of the upper plate 16 and is threadedly connected with a nut, and a shaft sleeve 4 that is adapted to the diameter of the rotating shaft 29 is fixedly connected at the center of the upper cover 2. The lower plate 19 is a hollow structure and is rotatably connected to the wall of the water pipe 33 at the center of the lower end through a sealed bearing. The water pipe 33 is socketed with the center of the drainage assembly, and a fixing assembly is provided on the opposite side of the upper plate 16 and the lower plate 19. The fixing assembly is scattered with the vertical shaft as the axis center, and the shaft sleeve 4 and the water pipe 33 inserted into the fixing assembly are used to realize vertical installation of the fixing frame, and can rotate at a low speed.

[0047] like Figure 3 and Figure 5The specific fixed components include an upper disc 26 and a lower disc 31. The upper disc 26 and the lower disc 31 are respectively fixedly connected to the hollow shaft at the corresponding position coaxially. One end of the hollow shaft is fixedly connected to a sleeve 28, and a plurality of rubber rings are embedded in the sleeve 28. The sleeve 28 is connected to the hollow shaft. The hollow shaft on the upper disc 26 is rotatably connected to the side wall of the upper disc 16 through a sealed bearing, and is sealed at its end. The hollow shaft on the lower disc 31 is rotatably connected to the side wall of the lower disc 19 through a sealed bearing, and its end is connected to the cavity inside the lower disc 19. The upper and lower ends of the ultrafiltration membrane assembly 35 are both engaged in the sleeve 28 at the corresponding positions.

[0048] The side wall of the upper disc 26 is fixedly connected with a gear ring 27 , and the gear ring 27 is used to realize linkage between adjacent upper discs 26 . The driving mechanism is installed on the side wall of the upper cover 2 .

[0049] As a further description of the above technical solution, the outer side of the ultrafiltration membrane assembly 35 is sleeved with an isolation cover 15, which is composed of multiple curved panels and multiple support rings. The curved panel is one of an arc structure, an S-shaped structure or a Z-shaped structure. The upper disc 26 and the lower disc 31 are provided on opposite sides with a slot that matches the curved panel structure. The isolation cover 15 is clamped between the upper disc 26 and the lower disc 31 through the provided slot and is coaxially arranged with the ultrafiltration membrane assembly 35. The side walls of the upper disc 16 and the lower disc 19 are provided with multiple fan-shaped holes, and multiple ultrasonic transducers 18 are fixedly connected to the multiple fan-shaped holes of the lower disc 19. The side wall of the box body 1 is provided with a sealing joint to connect the cable of the ultrasonic transducer 18.

[0050] The ultrasonic transducer 18 adopts a piezoelectric ceramic transducer with an operating frequency of 25KHz-40KHz. The cavitation effect generated by ultrasound in water will produce extremely localized high temperature, high pressure and strong shock waves / microjets at the moment of bubble collapse, causing the surface of the ultrafiltration membrane to vibrate, so that the originally attached impurities fall off and are carried away by the flowing raw water, so that the working ultrafiltration membrane can be cleaned in real time. In order to reduce the impact of a large number of bubbles on the ultrafiltration membrane, an isolation cover 15 is specially designed for protection, so that the bubbles cannot contact the ultrafiltration membrane in large quantities, and thus will not cause mechanical damage to the ultrafiltration membrane. In addition, the isolation cover 15 can be set to allow a large number of bubbles to produce cavitation effects near the ultrafiltration membrane, thereby causing high-frequency vibration of the water body, and prompting impurities on the surface of the ultrafiltration membrane to fall off.

[0051] In order to realize the self-rotation and revolution of the ultrafiltration membrane assembly 35, the present technical solution comprises a specific driving mechanism including a synchronous belt 17, wherein a plurality of synchronous wheels 23 are sleeved inside the synchronous belt 17, and the plurality of synchronous wheels 23 are respectively fixed to the upper end of the hollow shaft on the fixed frame, and a plurality of tensioning pulleys 32 are installed on the upper end of the fixed frame, and the plurality of tensioning pulleys 32 are in contact with the smooth surface of the synchronous belt 17; the side wall of the upper cover 2 is rotatably connected to the rotating shaft 29 through the bearing seat, and the side wall of the rotating shaft 29 is fixedly connected to the first gear 36, and the first gear 36 is meshed with the second gear 24, and the second gear 24 is fixedly connected to the shaft wall of one of the hollow shafts; the upper end of the fixed frame is located below the rotating shaft 29 and is fixedly connected to the rectangular frame 25; the lower end of the rotating shaft 29 is fixedly connected to the rocker arm 37, and one end of the rocker arm 37 is fixedly connected to the shaft pin slidably sleeved with the rectangular frame 25; the upper end of the upper cover 2 is fixedly connected to the reduction motor 5, and the output end of the reduction motor 5 is fixedly connected to the upper end of the rotating shaft 29 coaxially.

[0052] A synchronous wheel 23 is used as the driving wheel. At this time, the reduction motor 5 drives the rotating shaft and the first gear 36 to rotate the second gear 24. The rotation of the second gear 24 drives the synchronous wheel 23 to rotate. At this time, the synchronous belt can be used to drive multiple synchronous wheels 23 to rotate. Since the edge of the upper disc 26 is fixed with mutually meshing gear rings 27, each group of ultrafiltration membrane assemblies 35 can rotate independently, and the directions of adjacent ultrafiltration membrane assemblies 35 are opposite. At the same time, when the rotating shaft rotates, it drives the rocker arm 37 so that the shaft pin drives the rectangular frame 25 to make the fixed frame swing back and forth, so that a certain flushing effect can be generated between the ultrafiltration membrane assembly 35 and the raw water, so that impurities are mixed in the water and will not clog the micropores on the surface of the ultrafiltration membrane.

[0053] Specifically, the temperature control mechanism includes a spiral tube 13 and a straight tube 20, one end of the straight tube 20 is fixedly connected to one end of the spiral tube 13, the other end of the straight tube 20 passes through the box 1 and is fixedly connected to a connecting plate, and one side of the connecting plate is fixedly connected to a stepping motor 7, and two rings are fixedly connected inside the straight tube 20, the inner side of one of the rings is rotatably connected to the drive shaft through a sealed bearing, and the inner side of the other ring is rotatably connected to a round tube 41 through a sealed bearing, and the round tube 41 is fixedly connected to the drive shaft coaxially, and the output of the stepping motor 7 is fixedly connected to the box 1. The outlet end is fixedly connected to one end of the drive shaft, an impeller 42 is connected to the wall of the circular tube 41, a water inlet is opened on the wall of the straight tube 20 at a position corresponding to the impeller 42, an air intake channel is opened on the shaft wall of the circular tube 41, an aeration head 43 is fixedly connected to one end of the circular tube 41, and two air intake joints are fixedly connected to the wall of the straight tube 20 outside the box body 1, one of which is connected to the space between the two circular rings in the straight tube 20, and the connection between the other air intake joint and the straight tube 20 is located on the rear side of the impeller 42.

[0054] When the stepper motor 7 drives the drive shaft and the circular tube 41 to rotate, the impeller 42 rotates and generates thrust on the water. At this time, raw water can enter the spiral tube 13 from the water inlet and be discharged from the other end of the spiral tube 13. At this time, under the impact of the water flow, the raw water in the water tank can generate a vortex. Because the outlet of the spiral tube 13 is inclined upward, the discharged water can have an upward flow. To enhance the disinfection effect of the raw water, chlorine gas for disinfection can be delivered into the space between the two circular rings through one of the air inlet joints. The chlorine passes through the air inlet channel, then through the circular tube 41, and finally from the aeration head 43 to form small bubbles and dissolve in the raw water. After flowing through the spiral tube 13 with the raw water, it is discharged into the water tank. When temperature control is required, low-temperature air can be delivered from another air inlet joint located behind the impeller 42. The full contact between air and raw water is used to achieve cooling. At this time, the electric control valve 3 at the upper end of the upper cover 2 needs to be opened to exhaust air, thereby increasing the flow rate of the air flow, thereby achieving rapid cooling of the cooling water.

[0055] Specifically, the box body 1 and the lower cover 8 are both connected to the sealing ring 40 at the opposite ends through the clamping portion, and the box body 1 and the lower cover 8 are both provided with a fixing portion at the opposite ends. A conical frame 22 is commonly clamped between the two fixing portions. The lower end of the conical frame 22 is provided with a conical filter cloth 21. The lower end of the fixing portion on the box body 1 is fixedly connected with a positioning pin 39. The fixing portion on the lower cover 8 and the conical filter cloth 21 are both provided with positioning holes that match the positioning pin 39. The upper end of the fixing portion on the box body 1 is fixedly connected with a plurality of internal threads. Tube 38, the upper ends of multiple internally threaded tubes 38 are commonly provided with an annular plate 12, the annular plate 12 is connected to the internally threaded tube 38 by bolts, the inner side of the annular plate 12 is fixedly connected to the cyclone 11, the outer side of the box body 1 is fixedly connected to the circulating pump 10, the water inlet end of the circulating pump 10 is fixedly connected to the side wall of the box body 1 through a bend, the water outlet end of the circulating pump 10 is fixedly connected to the water inlet end of the cyclone 11 through a drain pipe, and the conical filter cloth and the conical frame 22 are both provided with through holes that match the outer shell of the cyclone 11.

[0056] The conical filter cloth 21 can be used to filter the raw water when it enters the water, and remove large particles of debris in the cooling water or cleaning water. At the same time, the water inlet adopts an inclined water inlet method, which can also have the effect of causing a vortex, so that the debris in the raw water is not easy to clog the conical filter cloth 21. At the same time, when there are many impurities, the external circulation pump 10 can be used to draw the raw water in the water tank and transport it to the cyclone 11. The cyclone 11 can generate a local vortex, so that the particles and debris in the raw water are settled. The raw water that has been simply separated is directly discharged into the water tank, so that the dirtier raw water can be effectively filtered.

[0057] like Figure 2As shown, the precipitated impurities after cyclone separation can be directly discharged below the conical filter cloth 21, and the discharge outlet of the cyclone 11 can be directly extended to the outside of the water tank (as shown by the dashed line) and the separated impurities can be periodically discharged by installing a discharge valve. Figure 2

[0058] The upper cover 2, the tank body 1 and the lower cover 8 are fixedly connected by bolts, the lower cover 8 is in an inverted conical structure and is fixed with a water inlet pipe 9 at the center of the bottom, one end of the water inlet pipe 9 extends into the water tank and is fixedly connected with an inclined spray head, a plurality of supporting legs are fixedly connected to the side wall of the lower cover 8 in a circumferential direction, and an electric control valve 3 and a sensor assembly 6 are fixedly connected to the side wall of the upper cover 2, the sensor assembly 6 includes temperature sensors, turbidity detection sensors and salinity detection sensors and is mainly used for real-time monitoring of the temperature, suspended solids and salt content of raw water during treatment of wastewater.

[0059] In addition, in order to improve the treatment effect of wastewater, pretreatment can be performed by using a multi-medium / activated carbon / precision filter, etc. before entering the device, so as to sufficiently reduce the content of pollutants in raw water, so that the ultrafiltration membrane can play a high-efficiency filtering role, and the filtered cooling water, cleaning water or rinsing water can be directly reused, thereby reducing production cost and wastewater discharge.

[0060] It should be noted that the term "comprising" or any other variant is intended to cover non-exclusive inclusion, so that processes, methods, articles or devices including a series of elements not only include those elements, but also include other elements not explicitly listed or inherent to such processes, methods, articles or devices. Without more limitations, the element defined by the statement "comprising a" does not exclude the presence of additional identical elements in the process, method, article or device including the element.

[0061] Although embodiments of the present application have been shown and described, it will be understood by those of ordinary skill in the art that various changes, modifications, substitutions and alterations can be made thereto without departing from the principles and spirit of the present application, and the scope of the present application is defined by the appended claims and their equivalents.​

Claims

1. An industrial wastewater deep treatment and reuse equipment, comprising a water tank consisting of an upper cover (2), a box body (1) and a lower cover (8), and a plurality of ultrafiltration membrane assemblies (35) arranged in the water tank, characterized in that: Also includes: A fixed frame, which is composed of an upper plate (16), a column (30) and a lower plate (19), is installed in a water tank and is rotatably installed with a plurality of ultrafiltration membrane assemblies (35) through a hollow shaft. The fixed frame is also provided with a driving mechanism for driving the plurality of ultrafiltration membrane assemblies (35) to rotate and reciprocate, so as to realize the low-speed movement of the ultrafiltration membrane assemblies (35) and form a flushing force with the raw water, thereby preventing impurities from adhering to the surface of the membrane filaments and ensuring the flow rate of the micropores; A drainage assembly is installed in the box (1) and supported by a fixed frame through a water pipe (33), and collects and discharges the purified water filtered by a plurality of ultrafiltration membrane assemblies (35); The temperature control mechanism uses a spiral pipe (13) below the fixed frame to circulate and push raw water to form an upward-flowing vortex, and uses the vortex to flush the ultrafiltration membrane component (35), and can also transport disinfectant and airflow to achieve disinfection and temperature control.

2. The industrial wastewater deep treatment and reuse equipment according to claim 1, characterized in that: The column (30) is fixed at the center of the lower plate (19), and a threaded column is provided at the upper end of the column (30), and the upper end of the threaded column is fixedly connected to the rotating shaft (29). A circular hole matching the threaded column is opened at the center of the upper plate (16), and the threaded column passes through the circular hole on the surface of the upper plate (16) and is threadedly connected to a nut. A sleeve (4) that matches the diameter of the rotating shaft (29) is fixedly connected at the center of the upper cover (2); The lower plate (19) is a hollow structure and is rotatably connected to the wall of the water pipe (33) at the center of the lower end through a sealed bearing. The water pipe (33) is sleeved with the center of the drainage component. A fixed component is provided on the opposite side of the upper plate (16) and the lower plate (19). The fixed components are arranged in a scattered manner with the vertical axis as the axis center.

3. The industrial wastewater deep treatment and reuse equipment according to claim 2, characterized in that: The fixed assembly includes an upper disc (26) and a lower disc (31), and the upper disc (26) and the lower disc (31) are respectively fixedly connected to the hollow shaft at the corresponding position coaxially, one end of the hollow shaft is fixedly connected to a sleeve (28), and a plurality of rubber rings are embedded in the sleeve (28), and the sleeve (28) is communicated with the hollow shaft. The hollow shaft on the upper disc (26) is rotatably connected to the side wall of the upper disc (16) through a sealing bearing, and a sealing treatment is performed on its end. The hollow shaft on the lower disc (31) is rotatably connected to the side wall of the lower disc (19) through a sealing bearing, and its end is communicated with the cavity inside the lower disc (19). The upper and lower ends of the ultrafiltration membrane assembly (35) are both engaged in the sleeve (28) at the corresponding position. The side wall of the upper disc (26) is fixedly connected with a gear ring (27), and the gear ring (27) is used to realize linkage between adjacent upper discs (26). The driving mechanism is installed on the side wall of the upper cover (2).

4. The industrial wastewater deep treatment and reuse equipment according to claim 3, characterized in that: The outer side of the ultrafiltration membrane assembly (35) is sleeved with an isolation cover (15), and the isolation cover (15) is composed of a plurality of curved plates and a plurality of support rings. A slot matching the curved plate structure is provided on the opposite side of the upper disc (26) and the lower disc (31). The isolation cover (15) is clamped between the upper disc (26) and the lower disc (31) through the provided slot and is coaxially arranged with the ultrafiltration membrane assembly (35). The side walls of the upper disc (16) and the lower disc (19) are provided with a plurality of fan-shaped holes. A plurality of ultrasonic transducers (18) are fixedly connected to the plurality of fan-shaped holes of the lower disc (19). The side walls of the box (1) are provided with a sealed joint to connect the cables of the ultrasonic transducers (18).

5. The industrial wastewater deep treatment and reuse equipment according to claim 1, characterized in that: The drainage assembly comprises a plurality of support tubes (14), the plurality of support tubes (14) are fixed in a box body (1), a drainage head is fixedly connected to the side wall of the box body (1), a water collecting portion is provided at the joint of the plurality of support tubes (14), the water collecting portion is provided with a sleeve, a rubber sleeve (34) is embedded in the sleeve, the rubber sleeve (34) is sleeved with the pipe wall of the water guide pipe (33), a positioning ring is provided at the upper end of the water collecting portion, and a positioning groove matched with the positioning ring is provided at the lower end of the lower plate (19).

6. The industrial wastewater deep treatment and reuse equipment according to claim 1, characterized in that: The driving mechanism includes a synchronous belt (17), a plurality of synchronous wheels (23) are sleeved in the synchronous belt (17), and the plurality of synchronous wheels (23) are respectively fixed to the upper end of the hollow shaft on the fixed frame. The upper end of the fixed frame is equipped with a plurality of tensioning wheels (32), and the plurality of tensioning wheels (32) are in contact with the smooth surface of the synchronous belt (17). The side wall of the upper cover (2) is rotatably connected to the rotating shaft (29) through the bearing seat, and the side wall of the rotating shaft (29) is fixedly connected to the first gear (36), and the first gear (36) is meshed with the first gear (36). Two gears (24), the second gear (24) is fixedly connected to the shaft wall of one of the hollow shafts, the upper end of the fixed frame is located below the rotating shaft (29) and is fixedly connected to a rectangular frame (25), the lower end of the rotating shaft (29) is fixedly connected to a rocker arm (37), one end of the rocker arm (37) is fixedly connected to an axis pin that is slidably sleeved with the rectangular frame (25), the upper end of the upper cover (2) is fixedly connected to a reduction motor (5), and the output end of the reduction motor (5) is fixedly connected to the upper end of the rotating shaft (29) coaxially.

7. The industrial wastewater deep treatment and reuse equipment according to claim 1, characterized in that: The temperature control mechanism comprises a spiral tube (13) and a straight tube (20), one end of the straight tube (20) is fixedly connected to one end of the spiral tube (13), the other end of the straight tube (20) passes through the box (1) and is fixedly connected to a connecting plate, and one side of the connecting plate is fixedly connected to a stepping motor (7), two circular rings are fixedly connected inside the straight tube (20), the inner side of one of the circular rings is rotatably connected to a drive shaft through a sealed bearing, and the inner side of the other circular ring is rotatably connected to a circular tube (41) through a sealed bearing, the circular tube (41) is fixedly connected to the drive shaft coaxially, and the output end of the stepping motor (7) is fixedly connected to the drive shaft. The circular tube (41) is fixedly connected to one end of the drive shaft, an impeller (42) is connected to the tube wall of the circular tube (41), a water inlet is provided at a position corresponding to the impeller (42) on the tube wall of the straight tube (20), an air intake channel is provided on the shaft wall of the circular tube (41), an aeration head (43) is fixedly connected to one end of the circular tube (41), two air intake joints are fixedly connected to the tube wall of the straight tube (20) outside the box (1), one of the air intake joints is communicated with the space between the two circular rings in the straight tube (20), and the connection between the other air intake joint and the straight tube (20) is located at the rear side of the impeller (42).

8. The industrial wastewater deep treatment and reuse equipment according to claim 1, characterized in that: The box body (1) and the lower cover (8) are both clamped with a sealing ring (40) at one end opposite to the box body (1) and the lower cover (8). The box body (1) and the lower cover (8) are both provided with a fixing portion at one end opposite to the box body (1). A conical frame (22) is clamped between the two fixing portions. A conical filter cloth (21) is provided at the lower end of the conical frame (22). A positioning pin (39) is fixedly connected to the lower end of the fixing portion on the box body (1). Positioning holes that match the positioning pin (39) are provided on the fixing portion on the lower cover (8) and the conical filter cloth (21).

9. The industrial wastewater deep treatment and reuse equipment according to claim 8, characterized in that: The upper end of the fixed portion on the box body (1) is fixedly connected to a plurality of internally threaded tubes (38), and the upper ends of the plurality of internally threaded tubes (38) are commonly provided with an annular plate (12), and the annular plate (12) is connected to the internally threaded tubes (38) by bolts. The inner side of the annular plate (12) is fixedly connected to the cyclone (11). The outer side of the box body (1) is fixedly connected to a circulation pump (10), and the water inlet end of the circulation pump (10) is fixedly connected to the side wall of the box body (1) through a bend pipe. The water outlet end of the circulation pump (10) is fixedly connected to the water inlet end of the cyclone (11) through a drain pipe. The conical filter cloth and the conical frame (22) are both provided with through holes that match the outer shell of the cyclone (11).

10. The industrial wastewater deep treatment and reuse equipment according to claim 1, characterized in that: The upper cover (2), the box body (1) and the lower cover (8) are all fixedly connected by bolts. The lower cover (8) is an inverted cone structure and is fixed with a water inlet pipe (9) at the center of the bottom. One end of the water inlet pipe (9) extends into the water tank and is fixedly connected to an inclined nozzle. The side wall of the lower cover (8) is fixedly connected to a plurality of legs in a circumferential direction. The side wall of the upper cover (2) is fixedly connected to an electric control valve (3) and a sensor assembly (6).

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