An emulsion cleaning wastewater treatment system and process

Abstract

This invention discloses an emulsion cleaning wastewater treatment system and process, including a pretreatment component, a ceramic fine filtration component, a reverse osmosis ultrafiltration component, a chemical cleaning component, and a reuse tank. The pretreatment component is connected to the ceramic fine filtration component. In treating the raw emulsion wastewater, this invention first employs a fine filtration followed by ultrafiltration. Fine filtration and ultrafiltration are faster, filtering out clean water that can be discharged or reused more quickly. This allows a large amount of filtered clean water to be discharged rapidly, leaving mainly concentrated wastewater requiring prolonged treatment within the equipment. This reduces the overall volume and floor space required for the treatment system. In the chemical cleaning component, chemicals are added via a dosing device. During dosing, a carrier plate carrying the dosing head performs biaxial motion on the surface of the cleaning tank, allowing the chemicals to be added over a larger surface area, preventing chemical aggregation, accelerating the mixing speed between the chemicals and wastewater, and improving cleaning efficiency.

Description

Technical Field

[0001] This invention relates to the field of industrial wastewater treatment technology, specifically to an emulsion cleaning wastewater treatment system and process. Background Technology

[0002] Emulsion wastewater has a complex composition, primarily containing mineral oil or mechanical lubricating oil, lubricating fluid, surfactants, additives, thickeners, soluble organic compounds, metal powders, and suspended solids, making it difficult to treat. Currently, it is mostly treated using methods such as chemical cleaning and biological decomposition. For example, Chinese invention patent CN113480101A discloses an emulsion cleaning wastewater treatment system, including an equalization tank, a synergistic advanced oxidation device, a dosing tank, a dosing system, and a biological treatment device. The equalization tank and the synergistic advanced oxidation device are connected, the equalization tank and the dosing tank are connected, the dosing system and the dosing tank are connected, and the biological treatment device and the dosing tank are connected. However, this treatment method has the following drawbacks:

[0003] When treating emulsified wastewater, directly treating the raw solution is an option, but chemical cleaning and biological decomposition methods take a long time. This requires the raw emulsified wastewater to remain for an extended period, resulting in bulky treatment equipment with a large footprint. Furthermore, during chemical cleaning, the chemicals are added directly, causing them to concentrate in the wastewater and become difficult to disperse. Mixing with agitation is necessary, which slows down the mixing process and reduces the efficiency of chemical cleaning.

[0004] Therefore, we propose an emulsion cleaning wastewater treatment system and process to solve the above problems. Summary of the Invention

[0005] The purpose of this invention is to provide an emulsion cleaning wastewater treatment system and process to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, the present invention provides the following technical solution: an emulsion cleaning wastewater treatment system device, comprising a pretreatment component, a ceramic fine filter component, a reverse osmosis ultrafiltration component, a chemical cleaning component, and a reuse tank, wherein the pretreatment component is connected to the ceramic fine filter component, the ceramic fine filter component is connected to the reverse osmosis ultrafiltration component, the reverse osmosis ultrafiltration component is connected to the reuse tank, and the chemical cleaning component is connected to both the ceramic fine filter component and the reverse osmosis ultrafiltration component;

[0007] The chemical cleaning component includes a cleaning tank, a dosing assembly is provided on the top surface of the cleaning tank, multiple submersible mixers are fixedly connected to the bottom surface inside the cleaning tank, and a fourth pump body, a fifth pump body and a sixth pump body are fixedly connected and connected to the side wall of the cleaning tank.

[0008] The dosing assembly includes a metal frame fixed to the top surface of the cleaning tank. A frame body is fixedly sleeved inside the metal frame. The frame body is fixed to the top surface of the cleaning tank. Two upper sliding grooves are horizontally opened on the two inner side walls of the frame body. Two upper sliding blocks are horizontally slidably connected in the two upper sliding grooves. A power plate is horizontally fixed between the two upper sliding blocks. A base plate is fixed to the bottom surface of the power plate. A dovetail sliding groove is horizontally opened on the side of the base plate away from the power plate. A dovetail sliding block is horizontally slidably connected in the dovetail sliding groove. A carrier plate is fixed to the side wall of the dovetail sliding block. Four dosing heads are vertically fixedly inserted into the carrier plate. The tops of the four dosing heads are fixedly connected to and connected to four solenoid valves. A vertical support is vertically fixed to one bottom surface of the metal frame. Four pipe heads are horizontally fixedly inserted into the support. The four pipe heads are fixedly connected to and connected to the four solenoid valves. Four corrugated hoses are connected.

[0009] Two downward sliding grooves are formed on the inner side wall of the frame below the two upper sliding grooves. Two downward sliding blocks are fixed to both ends of the base plate. The downward sliding blocks are horizontally slidably connected in the downward sliding grooves. A second reciprocating screw is horizontally rotatably connected in the downward sliding grooves. A second threaded sleeve is fixed to the upper part of the downward sliding block. The second reciprocating screw is threadedly connected to the second threaded sleeve. A wheel groove is formed on the bottom surface of the downward sliding block. Two first rotating rods are fixed to both ends of the second reciprocating screw. The first rotating rods are rotatably connected to the inside of the downward sliding block and the base plate. A gear is fixedly sleeved on the first rotating rod at the position of the wheel groove. A rack is fixedly embedded on the bottom surface of the downward sliding groove. The gear meshes with the rack. Two first reciprocating screws are rotatably connected in the two upper sliding grooves. A first threaded sleeve is fixed to the upper sliding block. The first reciprocating screw is threadedly connected to the first threaded sleeve.

[0010] Preferably, a vertical plate is fixedly connected to the top center of one end of the frame, and a transmission cavity is formed inside the frame and the vertical plate. A drive shaft is horizontally rotatably connected to the center of the transmission cavity. A drive reduction motor is fixedly connected to one side of the vertical plate. The shaft end of the drive reduction motor is located in the transmission cavity and fixedly connected to a first driving pulley. A first driven pulley is fixedly sleeved at the center of the drive shaft. A first synchronous belt is sleeved on the first driving pulley and the first driven pulley.

[0011] Preferably, two second rotating rods are fixedly connected to the ends of the two first reciprocating lead screws, and the ends of the two second rotating rods are located in the transmission cavity and fixedly sleeved with two second driven pulleys. Two second driving pulleys are fixedly sleeved on the drive shaft, and two second synchronous belts are sleeved on the two second driving pulleys and the two second driven pulleys.

[0012] Preferably, the ceramic fine filtration assembly includes a vertical filter chamber and a wastewater tank. A wastewater inlet pipe is fixedly connected to and connected to one side of the wastewater tank. A second pump body is fixedly connected to and connected to the bottom of the vertical filter chamber. The wastewater inlet pipe is connected to the second pump body. A return water pipe is also fixedly connected to and connected to the side wall of the wastewater tank. A fourth pump body is fixedly connected to the end of the return water pipe. A wastewater outlet pipe is fixedly connected to the top of the vertical filter chamber. A sixth pump body is fixedly connected to the end of the wastewater outlet pipe. A clean water outlet pipe is fixedly connected to the side wall of the vertical filter chamber. Multiple tubular ceramic membranes are fixedly connected inside the vertical filter chamber.

[0013] Preferably, the reverse osmosis ultrafiltration assembly includes a fixed frame, on which a horizontal filter compartment is horizontally fixed. Multiple spiral-wound reverse osmosis membranes are fixed within each horizontal filter compartment, with adjacent spiral-wound reverse osmosis membranes interconnected. One end of each horizontal filter compartment is fixedly connected to and connected to multiple inlet sub-pipes, and the other end of each horizontal filter compartment is fixedly connected to and connected to multiple product water sub-pipes. The multiple inlet sub-pipes are fixedly connected to and connected to a main inlet water pipe. The end of the main inlet water pipe is fixedly connected to and connected to a third pump body. The third pump body is fixedly connected to and connected to a clean water outlet pipe. The multiple product water sub-pipes are fixedly connected to and connected to a main product water pipe. The sidewalls of each horizontal filter compartment are fixedly connected to and connected to multiple concentrate sub-pipes. Multiple concentrate diversion pipes are fixedly connected to the fixed frame, and the concentrate diversion pipes are fixedly connected to and connected to multiple concentrate sub-pipes. The ends of the multiple concentrate diversion pipes are fixedly connected to and connected to a main concentrate water pipe. The end of the main concentrate water pipe is fixedly connected to and connected to a fifth pump body. The sidewall of the reuse tank is fixedly connected to and connected to a seventh pump body, and the seventh pump body is fixedly connected to and connected to the end of the main product water pipe.

[0014] Preferably, the pretreatment component includes a raw water tank, a sewage bar screen is fixedly connected to the raw water tank, a raw water inlet pipe is fixedly connected and connected to one side of the raw water tank, a first pump body is fixedly connected and connected to the other side of the raw water tank, the first pump body is fixedly connected and connected to the raw water outlet pipe, and the raw water outlet pipe is fixedly connected and connected to the sewage tank.

[0015] The present invention also provides a treatment process for an emulsion cleaning wastewater treatment system, comprising the following steps:

[0016] Step 1 Pretreatment: The emulsified wastewater is introduced into the raw water tank from the raw water inlet pipe. After large particulate impurities are filtered out by the wastewater bar screen, it is discharged into the ceramic fine filter module from the raw water outlet pipe.

[0017] Step 2 Fine Filtration: Wastewater enters the wastewater tank in the ceramic fine filtration module, and then enters the vertical filter chamber for filtration through the tubular ceramic membrane, filtering out suspended solids, microorganisms and some fine particles. The filtered water enters the reverse osmosis ultrafiltration module through the clean water outlet pipe, and the concentrated wastewater produced by filtration enters the chemical cleaning component through the wastewater outlet pipe.

[0018] Step 3 Ultrafiltration: The filtered water enters the reverse osmosis ultrafiltration module, where fine impurities are filtered out by the spiral wound reverse osmosis membrane to obtain clean water. The resulting concentrate enters the chemical cleaning unit through the concentrate main pipe, and the clean water enters the reuse tank, which can be directly discharged or reused.

[0019] Step 4 Chemical Cleaning: The concentrated wastewater generated in Step 2 and the concentrated water generated in Step 3 enter the cleaning tank. Chemicals are added through the dosing device to react, and demulsifier, PAC agent, pH adjuster and PAM agent are added in sequence. After the cleaning reaction is completed, the treated water enters the wastewater tank through the return water pipe, and then Steps 2 and 3 are continued.

[0020] Compared with the prior art, the beneficial effects of the present invention are:

[0021] In treating emulsion wastewater, this invention first employs fine filtration followed by ultrafiltration. While this method generates more concentrated wastewater, it allows for faster filtration of clean water suitable for discharge or reuse. The concentrated wastewater is then treated with a cleaning process, allowing for the rapid discharge of the large volume of clean water. The liquid remaining in the equipment is primarily the concentrated wastewater requiring prolonged treatment, thus reducing the overall system volume and floor space. In the chemical cleaning component, chemicals are added via a dosing assembly. During dosing, the carrier plate, carrying the dosing head, performs a biaxial motion on the cleaning tank surface, dispensing chemicals over a larger surface area, preventing accumulation, accelerating the mixing of chemicals with wastewater, and improving cleaning efficiency. Attached Figure Description

[0022] Figure 1 These are schematic diagrams of the main structure in the first, second, and third embodiments of the present invention;

[0023] Figure 2 These are schematic diagrams of the chemical cleaning component in the first, second, and third embodiments of the present invention;

[0024] Figure 3 These are schematic diagrams of the drug delivery component in the first, second, and third embodiments of the present invention;

[0025] Figure 4 These are schematic diagrams of the cross-sectional structure of the drug delivery component in the first, second, and third embodiments of the present invention;

[0026] Figure 5 These are schematic diagrams of the cross-sectional structure at the bottom plate in the first, second, and third embodiments of the present invention;

[0027] Figure 6 These are schematic diagrams of the cross-sectional structure at the sliding groove in the first, second, and third embodiments of the present invention;

[0028] Figure 7These are schematic diagrams of the ceramic fine filter assembly in the second and third embodiments of the present invention;

[0029] Figure 8 These are schematic diagrams of the reverse osmosis ultrafiltration component in the second and third embodiments of the present invention;

[0030] Figure 9 These are schematic diagrams of the preprocessing component in the second and third embodiments of the present invention;

[0031] Figure 10 These are schematic diagrams of the cross-sectional structure of the vertical filter compartment in the second and third embodiments of the present invention;

[0032] Figure 11 These are schematic diagrams of the cross-sectional structure of the horizontal filter compartment in the second and third embodiments of the present invention;

[0033] Figure 12 This is a schematic diagram of the processing method in the third embodiment of the present invention.

[0034] In the diagram: 1. Pretreatment component; 2. Ceramic fine filter component; 3. Reverse osmosis ultrafiltration component; 4. Chemical cleaning component; 5. Reuse tank; 11. Raw water tank; 12. Raw water inlet pipe; 13. First pump body; 14. Raw water outlet pipe; 15. Wastewater bar screen; 21. Vertical filter chamber; 22. Wastewater tank; 23. Wastewater inlet pipe; 24. Second pump body; 25. Wastewater outlet pipe; 26. Clean water outlet pipe; 27. Return water pipe; 28. Tubular ceramic membrane; 31. Mounting frame; 32. 33. Horizontal filter chamber; 34. Inlet subpipe; 35. Inlet main pipe; 36. Third pump body; 37. Product water subpipe; 38. Product water main pipe; 39. Concentrate subpipe; 30. Concentrate diversion pipe; 310. Concentrate main pipe; 311. Spiral wound reverse osmosis membrane; 41. Washing tank; 42. Dosing assembly; 43. Fourth pump body; 44. Fifth pump body; 45. Sixth pump body; 46. Submersible mixer; 421. Metal frame; 422. Frame body; 423. Upper chute; 424. 425. Upper slider; 426. Power plate; 427. Base plate; 428. Dovetail groove; 429. Dovetail slider; 420. Carrier plate; 4210. Dosing head; 4211. Solenoid valve; 4212. Corrugated hose; 4213. Stand; 4214. Pipe end; 4215. Lower groove; 4216. Lower slider; 4217. First reciprocating screw; 4218. First threaded sleeve; 4219. Second reciprocating screw; 4220. Second threaded sleeve; 42 21. Wheel groove; 4222. First rotating rod; 4223. Gear; 4224. Rack; 4225. Vertical plate; 4226. Drive geared motor; 4227. Transmission chamber; 4228. Drive shaft; 4229. First driving pulley; 4230. First driven pulley; 4231. Second rotating rod; 4232. Second driving pulley; 4233. Second driven pulley; 4234. First synchronous belt; 4235. Second synchronous belt; 51. Seventh pump body. Detailed Implementation

[0035] 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.

[0036] Example 1:

[0037] Please see Figure 1-6This invention provides a technical solution: an emulsion cleaning wastewater treatment system device, including a pretreatment component 1, a ceramic fine filter component 2, a reverse osmosis ultrafiltration component 3, a chemical cleaning component 4, and a reuse tank 5. The pretreatment component 1 is connected to the ceramic fine filter component 2, the ceramic fine filter component 2 is connected to the reverse osmosis ultrafiltration component 3, the reverse osmosis ultrafiltration component 3 is connected to the reuse tank 5, and the chemical cleaning component 4 is connected to both the ceramic fine filter component 2 and the reverse osmosis ultrafiltration component 3. In treating the raw emulsion wastewater, this invention first uses a fine filtration plus ultrafiltration method. Fine filtration and ultrafiltration are faster, and although this will generate more concentrated wastewater, it can filter out clean water that can be discharged or reused more quickly. Then, the concentrated wastewater is cleaned, and the large amount of clean water after filtration can be discharged quickly. The liquid in the equipment is mainly the remaining concentrated wastewater that needs to be treated for a long time, which can reduce the volume of the entire treatment system and reduce the floor space.

[0038] The chemical cleaning component 4 includes a cleaning tank 41, a dosing assembly 42 is provided on the top surface of the cleaning tank 41, multiple submersible mixers 46 are fixedly connected to the bottom surface inside the cleaning tank 41, and a fourth pump body 43, a fifth pump body 44 and a sixth pump body 45 are fixedly connected and connected to the side wall of the cleaning tank 41.

[0039] The dosing assembly 42 includes a metal outer frame 421 fixedly attached to the top surface of the cleaning tank 41. A frame body 422 is fixedly sleeved inside the metal outer frame 421. The frame body 422 is fixedly attached to the top surface of the cleaning tank 41. Two upper sliding grooves 423 are horizontally formed on the two inner side walls of the frame body 422. Two upper sliders 424 are horizontally slidably connected within the two upper sliding grooves 423. A power plate 425 is horizontally fixed between the two upper sliders 424. A base plate 426 is fixedly connected to the bottom surface of the power plate 425. A dovetail groove 427 is horizontally formed on the side of the base plate 426 away from the power plate 425. A dovetail slider 428 is horizontally slidably connected within the dovetail groove 427. The dovetail slider 428 is fixed to the side wall of the carrier plate 429. Four dosing heads 4210 are vertically fixed and inserted on the carrier plate 429. The top of the four dosing heads 4210 is fixed and connected to four solenoid valves 4211. The bottom side of the metal frame 421 is vertically fixed to the support frame 4213. Four pipe heads 4214 are horizontally fixed and inserted on the support frame 4213. The four pipe heads 4214 are fixed and connected to the four solenoid valves 4211 and four corrugated hoses 4212. The four dosing heads 4210 are used to add demulsifier, PAC agent, acid-base adjuster and PAM agent respectively to clean the concentrated wastewater.

[0040] Two lower sliding grooves 4215 are formed on the inner sidewall of the frame 422 below the two upper sliding grooves 423. Two lower sliding blocks 4216 are fixed to both ends of the base plate 426. The lower sliding blocks 4216 are horizontally slidably connected in the lower sliding grooves 4215. A second reciprocating screw 4219 is horizontally rotatably connected in the lower sliding grooves 4215. A second threaded sleeve 4220 is fixed to the upper part of the lower sliding block 4216. The second reciprocating screw 4219 is threadedly connected to the second threaded sleeve 4220. A wheel groove 4221 is formed on the bottom surface of the lower sliding block 4216. Two first rotating rods 4222 are fixed to both ends of the second reciprocating screw 4219. The first rotating rods 4222 are rotatably connected to the lower sliding block 4216 and the interior of the base plate 426. The first rotating rods 4222 are fixedly sleeved with gears 4223 at the position of the wheel grooves 4221. A rack 4224 is fixedly embedded in the bottom surface of the lower sliding grooves 4215. The rack 4224 is engaged with the gear 4223. Two first reciprocating screws 4217 are rotatably connected within the two upper sliding grooves 423. A first threaded sleeve 4218 is fixedly connected within the upper sliding block 424. The first reciprocating screw 4217 is threadedly connected to the first threaded sleeve 4218. When adding the chemical solution, under the action of the first reciprocating screw 4217, the power plate 425 drives the carrier plate 429 to move horizontally back and forth in one direction. At the same time, under the meshing action of the rack 4224 and the gear 4223, the second reciprocating screw 4219 rotates, driving the carrier plate 429 to move back and forth in another direction. In this way, when adding the chemical, the dosing head 4210 will move on the surface of the cleaning tank 41, which can add the chemical to a larger surface area, prevent the chemical from accumulating, speed up the mixing speed of the chemical and wastewater, and improve the cleaning efficiency.

[0041] Example 2:

[0042] Please see Figure 1-11 This is the second embodiment of the present invention. This embodiment is based on the previous embodiment. A vertical plate 4225 is fixedly connected to the top center of one end of the frame 422. A transmission cavity 4227 is opened inside one end of the frame 422 and inside the vertical plate 4225. The center of the transmission cavity 4227 is horizontally rotatably connected to the drive shaft 4228. A drive reduction motor 4226 is fixedly connected to one side of the vertical plate 4225. The shaft end of the drive reduction motor 4226 is located in the transmission cavity 4227 and fixedly connected to the first driving pulley 4229. The center of the drive shaft 4228 is fixedly sleeved with the first driven pulley 4230. A first synchronous belt 4234 is sleeved on the first driving pulley 4229 and the first driven pulley 4230.

[0043] Two first reciprocating lead screws 4217 are fixedly connected to two second rotating rods 4231 at their ends. The ends of the two second rotating rods 4231 are located in the transmission cavity 4227 and are fixedly sleeved with two second driven pulleys 4233. Two second driving pulleys 4232 are fixedly sleeved on the drive shaft 4228. Two second synchronous belts 4235 are sleeved on the two second driving pulleys 4232 and the two second driven pulleys 4233. The two first reciprocating lead screws 4217 are driven to rotate by the drive reduction motor 4226, thereby realizing the reciprocating movement of the power plate 425.

[0044] The ceramic fine filter assembly 2 includes a vertical filter chamber 21 and a sewage tank 22. A sewage inlet pipe 23 is fixedly connected to and connected to one side of the sewage tank 22. A second pump body 24 is fixedly connected to and connected to the bottom of the vertical filter chamber 21. The sewage inlet pipe 23 is connected to the second pump body 24. A return water pipe 27 is also fixedly connected to and connected to the side wall of the sewage tank 22. A fourth pump body 43 is fixedly connected to and connected to the end of the return water pipe 27. A sewage outlet pipe 25 is fixedly connected to and connected to the top of the vertical filter chamber 21. A sixth pump body 45 is fixedly connected to the end of the sewage outlet pipe 25. A clean water outlet pipe 26 is fixedly connected to the side wall of the vertical filter chamber 21. Multiple tubular ceramic membranes 28 are fixedly connected inside the vertical filter chamber 21. The tubular ceramic membranes 28 are used to treat emulsion wastewater. The ceramic membranes are resistant to acids, alkalis and oxidizing substances, and are resistant to microbial erosion, making them very suitable for treating emulsion wastewater with high oil content.

[0045] The reverse osmosis ultrafiltration module 3 includes a mounting frame 31, on which a horizontal filter chamber 32 is horizontally fixed. Multiple spiral-wound reverse osmosis membranes 311 are fixed inside the horizontal filter chamber 32, with adjacent spiral-wound reverse osmosis membranes 311 interconnected. One end of each horizontal filter chamber 32 is fixedly connected to and connected to multiple inlet sub-pipes 33, and the other end is fixedly connected to and connected to multiple product water sub-pipes 36. The multiple inlet sub-pipes 33 are fixedly connected to and connected to a main inlet water pipe 34. The end of the main inlet water pipe 34 is fixedly connected to and connected to a third pump body 35. The third pump body 35 is fixedly connected to and connected to a clean water outlet pipe 26. The multiple product water sub-pipes 36 are fixedly connected to and connected to a main product water pipe 37. Multiple... Multiple concentrate sub-pipes 39 are fixedly connected to the concentrated water sub-pipe 38 and the fixed bracket 31. The concentrated water sub-pipes 39 are fixedly connected to and connected to the multiple concentrated water sub-pipes 38. The ends of the multiple concentrated water sub-pipes 39 are fixedly connected to and connected to a concentrated water main pipe 310. The end of the concentrated water main pipe 310 is fixedly connected to and connected to the fifth pump body 44. The side wall of the reuse tank 5 is fixedly connected to and connected to the seventh pump body 51. The seventh pump body 51 is fixedly connected to and connected to the end of the product water main pipe 37. Ultrafiltration is performed through the spiral wound reverse osmosis membrane 311, which can quickly obtain clean water. The drawback is that a lot of concentrated wastewater will be generated. The purpose of this is to quickly discharge a large amount of clean water and then treat the concentrated wastewater, thereby reducing the volume of wastewater to be treated and reducing the overall system footprint.

[0046] The pretreatment component 1 includes a raw water tank 11, a sewage bar screen 15 fixedly connected inside the raw water tank 11, a raw water inlet pipe 12 fixedly connected and connected to one side of the raw water tank 11, a first pump body 13 fixedly connected and connected to the other side of the raw water tank 11, a raw water outlet pipe 14 fixedly connected and connected to the sewage tank 22. The pretreatment component 1 is used to filter out larger impurities, facilitating subsequent fine filtration and ultrafiltration.

[0047] Example 3:

[0048] Please see Figure 1-12 This is the third embodiment of the present invention. Based on the above two embodiments, this embodiment provides a treatment process for an emulsion cleaning wastewater treatment system, including the following steps:

[0049] Step 1 Pretreatment: The emulsified wastewater is introduced into the raw water tank 11 from the raw water inlet pipe 12, and after large particulate impurities are filtered out by the wastewater bar screen 15, it is discharged into the ceramic fine filter module 2 from the raw water outlet pipe 14.

[0050] Step 2 Fine Filtration: Wastewater enters the sewage tank 22 in the ceramic fine filter component 2, and then enters the vertical filter chamber 21 to be filtered by the tubular ceramic membrane 28, which removes suspended solids, microorganisms and some fine particles. The filtered water enters the reverse osmosis ultrafiltration component 3 through the clean water outlet pipe 26, and the concentrated wastewater produced by filtration enters the chemical cleaning component 4 through the wastewater outlet pipe 25.

[0051] Step 3 Ultrafiltration: The filtered water enters the reverse osmosis ultrafiltration module 3, and after the fine impurities are filtered out by the spiral reverse osmosis membrane 311, the water is purified. The concentrated water produced enters the chemical cleaning module 4 through the concentrated water main pipe 310, and the purified water enters the reuse tank 5, which can be directly discharged or reused.

[0052] Step 4 Chemical Cleaning: The concentrated wastewater generated in Step 2 and the concentrated water generated in Step 3 enter the cleaning tank 41. Chemicals are added through the dosing component 42 for reaction. Demulsifier, PAC agent, pH adjuster and PAM agent are added in sequence. After the cleaning reaction is completed, the treated water enters the wastewater tank 22 through the return water pipe 27, and then Steps 2 and 3 continue.

[0053] Example 4:

[0054] Please see Figure 1-12This is the fourth embodiment of the present invention, based on the above three embodiments. In use, the emulsion wastewater is introduced from the raw water inlet pipe 12 into the raw water tank 11. After large particulate impurities are removed by the wastewater screen 15, it is discharged from the raw water outlet pipe 14 into the ceramic fine filter assembly 2. Step two: fine filtration. The wastewater enters the wastewater tank 22 in the ceramic fine filter assembly 2, and then enters the vertical filter chamber 21 for filtration through the tubular ceramic membrane 28, removing suspended solids, microorganisms, and some fine particles. The filtered water enters the reverse osmosis ultrafiltration assembly 3 through the clean water outlet pipe 26. The concentrated wastewater produced by filtration enters the chemical cleaning component 4 through the wastewater outlet pipe 25. The filtered water then enters the reverse osmosis ultrafiltration assembly 3, where fine impurities are removed by the spiral wound reverse osmosis membrane 311, resulting in clean water. The concentrated water produced enters the chemical cleaning component 4 through the concentrated water main pipe 310. The clean water enters the reuse tank 5, which can be directly discharged or reused. During this process... The concentrated wastewater generated is then cleaned by the chemical cleaning component 4. After treatment, fine filtration and ultrafiltration are performed to form a cycle. In the treatment of emulsion wastewater raw liquid, the present invention first adopts fine filtration and ultrafiltration. Fine filtration and ultrafiltration are faster. Although more concentrated wastewater is generated, clean water that can be discharged or reused can be filtered out more quickly. Then, the concentrated wastewater is cleaned. In this way, a large amount of clean water can be discharged quickly. The liquid in the equipment is mainly the concentrated wastewater that needs to be treated for a long time. This can reduce the volume of the entire treatment system and reduce the footprint. In the chemical cleaning component 4 of the present invention, the agent is added by the dosing component 42. During dosing, the carrier plate 429 carrying the dosing head 4210 will move in a dual axis on the surface of the cleaning tank 41. This can add the agent to a larger surface area, prevent the agent from agglomerating, speed up the mixing speed of the agent and wastewater, and improve the cleaning efficiency.

[0055] 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 wastewater treatment system for emulsion cleaning, comprising a pretreatment component (1), a ceramic fine filter component (2), a reverse osmosis ultrafiltration component (3), a chemical cleaning component (4), and a reuse tank (5), characterized in that: The pretreatment component (1) is connected to the ceramic fine filter component (2), the ceramic fine filter component (2) is connected to the reverse osmosis ultrafiltration component (3), the reverse osmosis ultrafiltration component (3) is connected to the reuse tank (5), and the chemical cleaning component (4) is connected to the ceramic fine filter component (2) and the reverse osmosis ultrafiltration component (3). The chemical cleaning component (4) includes a cleaning tank (41), a dosing assembly (42) is provided on the top surface of the cleaning tank (41), a plurality of submersible mixers (46) are fixedly connected to the bottom surface inside the cleaning tank (41), and a fourth pump body (43), a fifth pump body (44) and a sixth pump body (45) are fixedly connected and connected to the side wall of the cleaning tank (41). The dosing assembly (42) includes a metal outer frame (421) fixed to the top surface of the cleaning tank (41). A frame body (422) is fixedly sleeved inside the metal outer frame (421). The frame body (422) is fixed to the top surface of the cleaning tank (41). Two upper sliding grooves (423) are horizontally opened on the two inner side walls of the frame body (422). Two upper sliding blocks (424) are horizontally slidably connected in the two upper sliding grooves (423). A power plate (425) is horizontally fixed between the two upper sliding blocks (424). A bottom plate (426) is fixedly connected to the bottom surface of the power plate (425). A dovetail slide is horizontally opened on the side of the bottom plate (426) away from the power plate (425). The groove (427) is horizontally connected to the dovetail slider (428). The side wall of the dovetail slider (428) is fixed to the carrier plate (429). Four dosing heads (4210) are vertically fixedly inserted on the carrier plate (429). The tops of the four dosing heads (4210) are fixedly connected to and connected to four solenoid valves (4211). The bottom side of the metal frame (421) is vertically fixed to the support frame (4213). Four pipe heads (4214) are horizontally fixedly inserted on the support frame (4213). The four pipe heads (4214) are fixedly connected to and connected to four solenoid valves (4211). Four corrugated hoses (4212) are fixedly connected to and connected to the four solenoid valves (4211). The inner wall of the frame (422) has two lower sliding grooves (4215) located below the two upper sliding grooves (423). Two lower sliding blocks (4216) are fixed to both ends of the base plate (426). The lower sliding blocks (4216) are horizontally slidably connected in the lower sliding grooves (4215). A second reciprocating screw (4219) is horizontally rotatably connected in the lower sliding grooves (4215). A second threaded sleeve (4220) is fixed to the lower sliding block (4216). The second reciprocating screw (4219) is threadedly connected to the second threaded sleeve (4220). A wheel groove (4221) is opened on the bottom surface of the lower sliding block (4216). The two ends of the second reciprocating screw (4219) are fixed. Two first rotating rods (4222) are connected to the lower slide block (4216) and the base plate (426). The first rotating rod (4222) is fixedly sleeved with a gear (4223) in the wheel groove (4221). The bottom surface of the lower slide groove (4215) is fixedly embedded with a rack (4224). The gear (4223) meshes with the rack (4224). Two first reciprocating screws (4217) are rotatably connected in the two upper slide grooves (423). A first threaded sleeve (4218) is fixedly connected in the upper slide block (424). The first reciprocating screw (4217) is threadedly connected to the first threaded sleeve (4218). A vertical plate (4225) is fixedly connected to the top center of one end of the frame (422). A transmission cavity (4227) is opened inside one end of the frame (422) and inside the vertical plate (4225). A drive shaft (4228) is horizontally rotatably connected to the center of the transmission cavity (4227). A drive reduction motor (4226) is fixedly connected to one side of the vertical plate (4225). The shaft end of the drive reduction motor (4226) is located in the transmission cavity (4227) and fixedly connected to the first driving pulley (4229). The center of the drive shaft (4228) is fixedly sleeved with the first driven pulley (4230). A first synchronous belt (4234) is sleeved on the first driving pulley (4229) and the first driven pulley (4230). Two second rotating rods (4231) are fixedly connected to the ends of the two first reciprocating lead screws (4217). The ends of the two second rotating rods (4231) are located in the transmission cavity (4227) and are fixedly sleeved with two second driven pulleys (4233). Two second driving pulleys (4232) are fixedly sleeved on the drive shaft (4228). Two second synchronous belts (4235) are sleeved on the two second driving pulleys (4232) and the two second driven pulleys (4233).

2. The emulsion cleaning wastewater treatment system device according to claim 1, characterized in that: The ceramic fine filter assembly (2) includes a vertical filter chamber (21) and a sewage tank (22). The sewage tank (22) is fixedly connected to and connected to a sewage inlet pipe (23) on one side. The bottom end of the vertical filter chamber (21) is fixedly connected to and connected to a second pump body (24). The sewage inlet pipe (23) is connected to the second pump body (24). The side wall of the sewage tank (22) is also fixedly connected to and connected to a return water pipe (27). The end of the return water pipe (27) is fixedly connected to and connected to a fourth pump body (43). The top end of the vertical filter chamber (21) is fixedly connected to and connected to a sewage outlet pipe (25). The end of the sewage outlet pipe (25) is fixedly connected to and connected to a sixth pump body (45). The side wall of the vertical filter chamber (21) is fixedly connected to and connected to a clean water outlet pipe (26). Multiple tubular ceramic membranes (28) are fixedly connected inside the vertical filter chamber (21).

3. The emulsion cleaning wastewater treatment system device according to claim 2, characterized in that: The reverse osmosis ultrafiltration assembly (3) includes a fixed frame (31), on which a horizontal filter chamber (32) is horizontally fixed. Multiple spiral-wound reverse osmosis membranes (311) are fixed inside each horizontal filter chamber (32). Adjacent spiral-wound reverse osmosis membranes (311) are interconnected. One end of each horizontal filter chamber (32) is fixedly connected to and connected to multiple inlet sub-pipes (33). The other end of each horizontal filter chamber (32) is fixedly connected to and connected to multiple product water sub-pipes (36). Each inlet sub-pipe (33) is fixedly connected to and connected to a main inlet water pipe (34). The end of the main inlet water pipe (34) is fixedly connected to and connected to a third pump body (35). The third pump body (35) is fixedly connected to and connected to... The clear water outlet pipe (26) is fixedly connected to and connected to a main water production pipe (37). The side walls of the horizontal filter chambers (32) are fixedly connected to and connected to multiple concentrated water sub-pipes (38). Multiple concentrated water diversion pipes (39) are fixedly connected to the fixed frame (31). The concentrated water diversion pipes (39) are fixedly connected to and connected to multiple concentrated water sub-pipes (38). The ends of the multiple concentrated water diversion pipes (39) are fixedly connected to and connected to a main concentrated water pipe (310). The end of the main concentrated water pipe (310) is fixedly connected to and connected to a fifth pump body (44). The side wall of the reuse tank (5) is fixedly connected to and connected to a seventh pump body (51). The seventh pump body (51) is fixedly connected to and connected to the end of the main water production pipe (37).

4. The emulsion cleaning wastewater treatment system device according to claim 3, characterized in that: The pretreatment component (1) includes a raw water tank (11), a sewage bar screen (15) is fixedly connected to the raw water tank (11), a raw water inlet pipe (12) is fixedly connected to one side of the raw water tank (11), a first pump body (13) is fixedly connected to the other side of the raw water tank (11), a raw water outlet pipe (14) is fixedly connected to the first pump body (13), and a sewage tank (22) is fixedly connected to the raw water outlet pipe (14).

5. A treatment process for an emulsion cleaning wastewater treatment system according to any one of claims 1-4, characterized in that, Includes the following steps: step Pretreatment: The emulsion wastewater is introduced into the raw water tank (11) from the raw water inlet pipe (12), and after large particulate impurities are filtered out by the sewage bar screen (15), it is discharged into the ceramic fine filter assembly (2) from the raw water outlet pipe (14); Step 2 Fine Filtration: Wastewater enters the sewage tank (22) in the ceramic fine filter module (2), and then enters the vertical filter chamber (21) for filtration through the tubular ceramic membrane (28), filtering out suspended solids, microorganisms and some fine particles. The filtered water enters the reverse osmosis ultrafiltration module (3) through the clean water outlet pipe (26), and the concentrated wastewater generated by filtration enters the chemical cleaning component (4) through the wastewater outlet pipe (25). Step 3 Ultrafiltration: The filtered water enters the reverse osmosis ultrafiltration module (3), and after the fine impurities are filtered out by the spiral reverse osmosis membrane (311), the water is purified. The concentrated water produced enters the chemical cleaning component (4) through the concentrated water main pipe (310), and the purified water enters the reuse tank (5) for direct discharge or reuse. Step 4 Chemical cleaning: The concentrated wastewater generated in Step 2 and the concentrated water generated in Step 3 enter the cleaning tank (41). The chemical reaction is carried out by adding the chemical dosing component (42). Demulsifier, PAC agent, acid-base adjuster and PAM agent are added in sequence. After the cleaning reaction is completed, the treated water enters the wastewater tank (22) from the return water pipe (27) and then continues to Step 2-Step 3.

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