Treatment equipment for antimony-free reverse osmosis membrane production wastewater

Abstract

The invention discloses wastewater treatment equipment for antimony-free reverse osmosis membrane production, and belongs to the technical field of wastewater treatment. In order to solve the problem that the circulation efficiency of wastewater in a sedimentation tank is low when the conventional product is used for treating the wastewater, the invention provides the following technical scheme: the wastewater treatment device comprises a pretreatment unit, a secondary treatment unit and a fine purification unit, and the secondary treatment unit comprises a chemical treatment process and a biological treatment process. The internal space of the sedimentation tank is divided into two parts, and the feeding and discharging component is matched to realize flow guide control on wastewater entering the sedimentation tank, so that the two spaces in the sedimentation tank can receive new wastewater while precipitating the wastewater, the burden of a wastewater adjustment procedure is reduced, and the wastewater treatment efficiency is improved. When the flow guide assembly is adjusted, the switching assembly is synchronously adjusted, and meanwhile, the adjusting assembly is driven to clean the fine filtering assembly.

Description

Technical Field

[0001] This invention relates to the field of wastewater treatment technology, specifically to a wastewater treatment device for the production of antimony-free reverse osmosis membranes. Background Technology

[0002] Reverse osmosis membranes are artificial semi-permeable membranes with certain characteristics, made by simulating biological semi-permeable membranes. They are the core component of reverse osmosis technology. Reverse osmosis membrane production generates wastewater, which is mainly generated in the cleaning process of membrane manufacturing, especially when acidic solutions such as citric acid are used to clean unreacted monomers (such as m-phenylenediamine). This process generates wastewater with high chemical oxygen demand (COD). In order to protect the natural environment and the reuse of resources, the wastewater will be treated to be harmless and made recyclable.

[0003] Wastewater treatment is basically carried out in a multi-stage manner, combining pretreatment units, secondary treatment units and fine purification units, and supplemented by water pumps to realize the flow of wastewater, thereby achieving efficient wastewater treatment.

[0004] Currently, in existing technical solutions, the sedimentation tank structure in the wastewater sedimentation process during the pretreatment unit is simple. New wastewater can only re-enter the sedimentation tank for sedimentation treatment when the wastewater that has completed sedimentation enters the secondary process. This not only increases the burden on the wastewater conditioning process but also affects the efficiency of wastewater treatment. When the wastewater in the sedimentation tank is transferred to the secondary process by a water pump, the pipes extending into the sedimentation tank inevitably transport some of the impurities that have settled at the bottom of the tank into the secondary process, increasing the processing burden of subsequent processes. Even if filter screens or other filtration structures are installed on the pipes extending into the sedimentation tank to block and filter impurities, the filtration structures are easily clogged as the equipment operates, requiring regular manual maintenance and increasing the maintenance burden on staff. Summary of the Invention

[0005] To overcome the aforementioned deficiencies of the prior art, this invention provides a wastewater treatment device for antimony-free reverse osmosis membrane production. By dividing the internal space of the sedimentation tank into two parts and using loading and unloading components to guide and control the flow of wastewater entering the sedimentation tank, the two spaces inside the sedimentation tank can simultaneously settle wastewater and receive new wastewater, reducing the burden of the wastewater conditioning process and improving the wastewater treatment efficiency. Furthermore, while adjusting the flow guiding component, the switching component is adjusted simultaneously, and the adjustment component is driven to clean the fine filter component. This not only facilitates the transfer of settled wastewater to the next process but also alleviates the clogging of the fine filter component and reduces the burden of manual maintenance, thereby solving the problems mentioned in the background art.

[0006] To achieve the above objectives, the present invention provides the following technical solution: A wastewater treatment device for antimony-free reverse osmosis membrane production includes a pretreatment unit, a secondary treatment unit, and a fine purification unit. The pretreatment unit includes wastewater conditioning and sedimentation processes; the secondary treatment unit includes chemical and biological treatment processes; and the fine purification unit includes deep treatment, disinfection, and discharge processes. Water resources are transferred between each process via a pump body. The wastewater sedimentation process includes a sedimentation tank and a loading / unloading component mounted on the sedimentation tank. The loading / unloading component includes a frame, a pre-filtration assembly, a drive assembly, a switching assembly, a flow guiding assembly, an adjustment assembly, and a fine filtration assembly. The frame is mounted on the sedimentation tank. The pre-filtration assembly, drive assembly, and switching assembly are all located on top of the frame, with the drive assembly and switching assembly fixedly connected. The flow guiding assembly is movably connected to the frame and movably connected to the pre-filtration assembly, engaging with the drive assembly. Two fine filtration assemblies are located at the two bottom ends of the switching assembly, linked by an adjustment assembly, which is fixedly connected to the drive assembly. The chemical treatment process includes a chemical treatment tank and auxiliary components. The chemical treatment tank is located to the left of the sedimentation tank, and the auxiliary components are installed on the chemical treatment tank to agitate the mixing of wastewater and chemical agents.

[0007] As a further embodiment of the present invention, the sedimentation tank includes a tank body and a partition, wherein the tank body is located on the ground, the partition is located inside the tank body, separating the internal space of the tank body to form two wastewater sedimentation zones, and the carrier is fixedly connected to the top of the tank body by bolts, and the carrier is located directly above the partition.

[0008] As a further embodiment of the present invention, the pre-filtering assembly includes a box body fixedly connected to the carrier frame by bolts, an impeller installed inside the box body by a rotating shaft, a top cover for sealing the box body installed on the top of the box body by bolts, and a material guide channel installed at the discharge end of the box body by screws, with a hole for wastewater discharge opened at the bottom left end of the material guide channel. The impeller includes a cylinder sleeved on a rotating shaft. Multiple blades are integrally arranged on the outer shell wall of the cylinder along the circumferential direction. Each blade has an internal cavity for holding adsorbent material. An inspection port is provided on the top shell wall of the cavity, and an inspection cover is installed in the inspection port by screws. Multiple adsorption holes for adsorbing impurities are arranged in a matrix on the side wall of each blade.

[0009] As a further embodiment of the present invention, the left side of the pre-filtering component is provided with a groove on the top shell wall of the carrier, and a base is provided on the left side of the groove. The driving component includes a multi-section electric push rod disposed on the base. A splicing plate is installed at the output end of the multi-section electric push rod. A rack is installed on the side wall of the splicing plate by bolts. The rack is slidably connected to the groove, and a gear meshing with it is provided on the right side of the rack. A circular hole is provided directly below the gear on the carrier, and a drive shaft is rotatably connected in the circular hole. The gear is sleeved on the drive shaft.

[0010] As a further embodiment of the present invention, the switching assembly includes a circular box, a drainage pipe, a shaped switching plug, and a box cover. The circular box is located directly above the gear. The top end of the drive shaft penetrates the bottom shell wall of the circular box and extends into the interior of the circular box. The shaped switching plug is fixedly connected to the top end of the drive shaft. The front and rear shell walls of the circular box are provided with slots, and conduits are installed in the slots. There are two drainage pipes, which are fixedly connected to the corresponding conduits by bolts. The bottom ends of the two drainage pipes penetrate the carrier and correspond to the corresponding wastewater sedimentation areas. The cover is fixed to the top of the circular box with bolts, and the cover is connected to the water pump body through a pipe.

[0011] As a further embodiment of the present invention, an arc-shaped through groove located on the carrier is provided between the switching component and the pre-filtering component. A support arm is slidably connected in the arc-shaped through groove. A ring is welded to the bottom of the support arm. An installation hole located on the carrier is provided directly below the hole. The flow guiding component includes a discharge pipe and an arc-shaped toothed plate. The discharge pipe is disposed in the ring. The top end of the discharge pipe passes through the installation hole and is connected to the hole on the guide channel through a rotating connector. The arc-shaped toothed plate is fixedly connected to the top of the support arm by bolts and meshes with the gear for transmission.

[0012] As a further embodiment of the present invention, the fine filtration assembly includes a sleeve, an end cap, a material swivel shaft, and an outer sleeve. The end cap is fixedly connected to the top of the sleeve by bolts, and the top of the end cap is threadedly connected to the bottom of the drain pipe. The outer sleeve is rotatably connected to the outside of the sleeve. The material swivel shaft is disposed inside the sleeve, and the bottom end of the material swivel shaft penetrates the bottom shell wall of the sleeve and is installed on the bottom shell wall of the outer sleeve.

[0013] As a further embodiment of the present invention, the adjustment component includes a toothed chain, a sliding plate, and a swing arm. The toothed chain includes two outer toothed rings and a chain. The two outer toothed rings are respectively fitted onto the outer shell wall of the corresponding outer sleeve, and the two outer toothed rings are connected by the chain. The slide plate is slidably connected to the inner left side wall of the pool body. The slide plate is fixedly connected to the chain, and a straight groove is opened on the slide plate. A protruding rod is slidably connected in the straight groove. The swing arm is set at the bottom end of the drive shaft, and the top end of the protruding rod is fixedly connected to the swing arm.

[0014] As a further embodiment of the present invention, the auxiliary component includes a U-shaped frame fixedly connected to the chemical treatment tank by bolts. A stirring device body for stirring the liquid is provided at the center of the U-shaped frame. A feeding pipe for adding chemical agents is installed on the side of the stirring device body. A control valve is provided on the feeding pipe. A pipe is also provided at the output end of the water pump body. The left end of the pipe passes through the U-shaped frame and extends into the chemical treatment tank. The main body of the stirring device includes a motor that is fixedly connected to the top shell wall of the U-shaped frame by bolts, and the output end of the motor is provided with a stirring shaft that extends into the chemical treatment tank.

[0015] Compared with the prior art, the beneficial effects of the present invention are: 1. By dividing the internal space of the sedimentation tank into two parts and using loading and unloading components to guide and control the flow of wastewater entering the sedimentation tank, the two spaces inside the sedimentation tank can simultaneously allow wastewater to settle and receive new wastewater. This not only ensures that the wastewater entering the next process undergoes sufficient sedimentation treatment, but also reduces the burden on the wastewater conditioning process, shortens the time interval for subsequent wastewater flow, and improves the wastewater treatment efficiency.

[0016] 2. The direction of the flow guiding component is adjusted by the operation of the drive component in the loading and unloading parts, controlling the wastewater flowing out of the pre-filter component to enter the appropriate space in the sedimentation tank. When the flow guiding component is adjusted, the switching component is driven to adjust simultaneously, which facilitates the pump to extract the settled wastewater and transport it to the chemical treatment tank for oxidation pretreatment. The drive component also drives the adjustment component to switch and wipe the filter screens of the fine filter components in different spaces, reducing the probability of filter screen clogging during long-term use, extending their service life, and reducing the burden of manual maintenance.

[0017] 3. The outer sleeve of the fine filter component moves with the adjustment component and also drives the material agitator shaft inside the sleeve to rotate. This agitates the adsorbent material filled inside the sleeve, reducing the risk of it clumping together due to long-term immersion in water, ensuring its filtration effect on impurities, and further extending the product's service life.

[0018] 4. Each blade of the impeller in the pre-filtration assembly is equipped with a filtration structure. When wastewater in the equalization tank flows into the sedimentation tank through the pre-filtration assembly, the wastewater will impact the impeller, causing it to rotate. At this time, some impurities carried in the wastewater are adsorbed and treated by the filtration structure in the impeller, which reduces the impurity content of the wastewater entering the sedimentation tank. Furthermore, the impeller is rotated by the water flow, which automatically switches the filtration structure that adsorbs impurities, preventing impurities in the wastewater from becoming excessively concentrated on the filtration structure of a certain blade of the impeller. Attached Figure Description

[0019] Figure 1 This is a flow chart of a wastewater treatment equipment used in the production of antimony-free reverse osmosis membranes. Figure 2 for Figure 1 A schematic diagram of the wastewater sedimentation process and chemical treatment process; Figure 3 for Figure 2 A schematic diagram of the axial side view structure; Figure 4 for Figure 2 A partial cross-sectional view of the sedimentation tank; Figure 5 for Figure 4 A schematic diagram of the loading and unloading components; Figure 6 for Figure 5 A schematic diagram of the structure viewed from below; Figure 7 for Figure 5 A schematic diagram of the pre-filtering component structure; Figure 8 for Figure 7 A schematic diagram of the structure viewed from below; Figure 9 for Figure 5 A schematic diagram of the switching component and the driving component structure; Figure 10 for Figure 9 A schematic diagram of the structure viewed from the side; Figure 11 for Figure 9 A schematic diagram of the axial side view structure; Figure 12 for Figure 9 A schematic diagram of the fine filter component structure.

[0020] In the diagram: 1. Sedimentation tank; 11. Tank body; 12. Baffle plate; 2. Carrier frame; 3. Pre-filtration assembly; 31. Box body; 32. Impeller; 321. Blade; 322. Inspection cover; 33. Top cover; 34. Material guide channel; 4. Drive assembly; 41. Multi-section electric push rod; 42. Rack; 43. Gear; 5. Switching assembly; 51. Circular box; 52. Drain pipe; 53. Irregularly shaped switching plug; 54. Box cover; 6. Flow guide assembly; 61. Discharge pipe; 62. Arc-shaped toothed plate; 7. Adjustment assembly; 71. Toothed chain; 72. Slide plate; 73. Swing arm; 8. Fine filtration assembly; 81. Sleeve; 82. End cover; 83. Material stirring shaft; 84. Outer casing; 9. Chemical treatment tank; 10. Auxiliary assembly; 101. U-shaped frame; 102. Main body of stirring device; 13. Main body of water pump. Detailed Implementation

[0021] Please see Figures 1-3 In this embodiment of the invention, a wastewater treatment device for antimony-free reverse osmosis membrane production includes a pretreatment unit, a secondary treatment unit, and a fine purification unit. The pretreatment unit includes a wastewater conditioning process and a wastewater sedimentation process. The secondary treatment unit includes a chemical treatment process and a biological treatment process. The fine purification unit includes a deep treatment process and a disinfection and discharge process. Each process is connected by a separate water pump body 13 to ensure the flow of water resources between each process. Please see Figures 1-6 In this embodiment of the invention, the wastewater sedimentation process includes a sedimentation tank 1 and a loading and unloading component disposed on the sedimentation tank 1. The loading and unloading component includes a carrier 2, a pre-filtration component 3, a drive component 4, a switching component 5, a flow guiding component 6, an adjustment component 7, and a fine filtration component 8. When the wastewater in the wastewater adjustment process is transported to the wastewater sedimentation process by the corresponding water pump body 13 for sedimentation treatment, the wastewater enters different wastewater sedimentation zones in the sedimentation tank 1 for static sedimentation through the cooperation of the pre-filtration component 3 and the flow guiding component 6 in the loading and unloading component. The carrier 2 is set on the sedimentation tank 1. The pre-filter component 3, the drive component 4 and the switching component 5 are all set on the top of the carrier 2, and the drive component 4 and the switching component 5 are fixedly connected. Thus, when the drive component 4 is running, the irregularly shaped switching plug 53 in the switching component 5 is adjusted synchronously. The flow guiding component 6 is movably connected to the carrier 2, and the flow guiding component 6 is movably connected to the pre-filter component 3, and engages with the drive component 4 for transmission. When the drive component 4 is running, it synchronously drives the drive component 4 to make adjustments. The fine filter component 8 includes two components, which are respectively located at the two bottom ends of the switching component 5. The two fine filter components 8 are linked by the adjustment component 7, and the adjustment component 7 is fixedly connected to the driving component 4. Thus, when the driving component 4 is running, it adjusts the two fine filter components 8 synchronously through the adjustment component 7. The chemical treatment process includes a chemical treatment tank 9 and an auxiliary component 10. The chemical treatment tank 9 is located on the left side of the sedimentation tank 1. The auxiliary component 10 is installed on the chemical treatment tank 9 and is used to stir the mixing between the wastewater and the chemical reagent. A water pump body 13 for wastewater circulation is also installed between the chemical treatment tank 9 and the auxiliary component 10.

[0022] Please see Figure 3 In this embodiment of the invention, the sedimentation tank 1 includes a tank body 11 and a partition 12. The tank body 11 is located on the ground, and the partition 12 is located inside the tank body 11 to separate the internal space of the tank body 11, forming two wastewater sedimentation zones. The carrier 2 is fixedly connected to the top of the tank body 11 by bolts, and the carrier 2 is located directly above the partition 12. The setting of two wastewater sedimentation zones allows wastewater to enter the tank body 11 for sedimentation treatment. While wastewater is settling in one wastewater sedimentation zone, the other wastewater sedimentation zone is filled. During the filling process, sufficient time is provided for the wastewater in the wastewater sedimentation zone that has been filled first to settle, thereby ensuring the continuity of wastewater supply in subsequent treatment processes and reducing the burden on the wastewater conditioning process.

[0023] Please see Figures 6-8 In this embodiment of the invention, the pre-filtering component 3 includes a box 31 fixedly connected to the carrier 2 by bolts. An impeller 32 is installed inside the box 31 via a rotating shaft. A top cover 33 for sealing is installed on the top of the box 31 by bolts. The ease of disassembly and assembly of the top cover 33 allows for maintenance of the impeller 32 inside the box 31. A guide channel 34 is installed at the discharge end of the box 31 by screws. A hole for wastewater discharge is opened at the bottom left end of the guide channel 34. Wastewater is transported from the inlet end of the box 31 into the interior of the box 31. The wastewater impacts the impeller 32, causing it to rotate. Finally, the wastewater enters the guide channel 34 and is discharged into the guide component 6 through the hole. The impeller 32 includes a cylinder sleeved on the rotating shaft. Multiple blades 321 are integrally arranged on the outer shell wall of the cylinder along the circumferential direction. The number of blades 321 ranges from three to twelve, and nine are used in this embodiment. Each blade 321 has an internal cavity for holding adsorbent material. An inspection port is provided on the top shell wall of the cavity. An inspection cover 322 is installed in the inspection port by screws. Multiple adsorption holes for adsorbing impurities are provided in a matrix on the side wall of each blade 321. The blades 321 are designed with receiving grooves and adsorption holes that can be filled with adsorbent material. When the wastewater impacts the impeller 32, the adsorbent material in the receiving grooves adsorbs the impurities in the wastewater, thus performing preliminary filtration of the wastewater and reducing the burden of sedimentation. The impeller 32 rotates under force, allowing each blade 321 to switch contact with it, thus ensuring the adsorption effect of each blade 321 on the wastewater. The inspection cover 322 on the blades 321 facilitates the staff to perform regular maintenance on the adsorbent material in the receiving grooves.

[0024] Please see Figures 5-6 and Figures 9-11 In this embodiment of the invention, a groove is provided on the left side of the pre-filter component 3 on the top shell wall of the carrier 2, and a base is provided on the left side of the groove. The drive component 4 includes a multi-section electric push rod 41 disposed on the base. A splicing plate is installed at the output end of the multi-section electric push rod 41. A rack 42 is installed on the side wall of the splicing plate by bolts. A slide is provided at the bottom of the rack 42. The slide is slidably connected to the groove. A gear 43 is provided on the right side of the rack 42 and meshes with it. A round hole is provided directly below the gear 43 on the carrier 2. A drive shaft is rotatably connected in the round hole. The gear 43 is sleeved on the drive shaft. When the multi-section electric push rod 41 extends and retracts, it drives the rack 42 to move synchronously. The rack 42 meshes with the gear 43, thereby realizing the rotational movement of the gear 43. Since the movement distance of the rack 42 can only drive the gear 43 to move half a turn, the movement requirements of the irregular switching plug 53 in the switching assembly 5, the arc-shaped toothed plate 62 in the flow guiding assembly 6, and the swing arm 73 in the adjustment assembly 7 are guaranteed.

[0025] The switching assembly 5 includes a circular box 51, a drain pipe 52, a shaped switching plug 53, and a box cover 54. The circular box 51 is located directly above the gear 43. The top end of the drive shaft passes through the bottom shell wall of the circular box 51 and extends into the interior of the circular box 51. The shaped switching plug 53 is fixedly connected to the top end of the drive shaft. When the gear 43 drives the drive shaft to rotate, the shaped switching plug 53 rotates and moves inside the circular box 51, thereby achieving the sealing and adjustment of the discharge ports of the two drain pipes 52. The front and rear side walls of the circular box 51 are provided with slots, and conduits are installed in the slots. There are two drainage pipes 52, which are fixedly connected to the corresponding conduits by bolts. The bottom ends of the two drainage pipes 52 penetrate the carrier 2 and correspond to the corresponding wastewater sedimentation areas. The two drainage pipes 52 correspond to different wastewater sedimentation areas in the sedimentation tank 1. Under the switching adjustment of the irregularly shaped switching plug 53, the corresponding water pump body 13 can extract and transport the wastewater that has completed sedimentation treatment in the corresponding wastewater sedimentation area. The cover 54 is fixedly connected to the top of the circular box 51 by bolts, and the cover 54 is connected to the water pump body 13 by a pipe.

[0026] An arc-shaped through groove is provided on the carrier 2 between the switching component 5 and the pre-filtering component 3. A support arm is slidably connected in the arc-shaped through groove. A ring is welded to the bottom of the support arm. An installation hole is provided on the carrier 2 directly below the hole. The flow guiding component 6 includes a discharge pipe 61 and an arc-shaped toothed plate 62. The discharge pipe 61 is set in the ring. The top end of the discharge pipe 61 passes through the installation hole and is connected to the hole on the guide channel 34 through a rotating connector. The arc-shaped toothed plate 62 is fixedly connected to the top of the support arm by bolts and meshes with the gear 43 for transmission. When gear 43 rotates, the arc-shaped toothed plate 62 that meshes with it drives the support arm to move. Under the action of the ring and the rotating connector, the unloading pipe 61 rotates and adjusts around the rotating connector as the rotation center, so that the bottom end of the unloading pipe 61 can pass through the partition 12 to switch and adjust in different wastewater sedimentation zones.

[0027] Please see Figures 9-12 In this embodiment of the invention, the fine filter assembly 8 includes a sleeve 81, an end cap 82, a material swivel shaft 83, and an outer sleeve 84. The end cap 82 is fixedly connected to the top of the sleeve 81 by bolts, and the top of the end cap 82 is threadedly connected to the bottom of the drain pipe 52, thereby facilitating the disassembly and maintenance of the fine filter assembly 8 and the drain pipe 52. The ease of disassembly and assembly between the end cap 82 and the sleeve 81 facilitates regular maintenance of the adsorbent material inside the sleeve 81; The peripheral wall of sleeve 81 adopts a filter screen structure to achieve the filtration treatment of wastewater; The outer sleeve 84 is rotatably connected to the outside of the sleeve 81, and the material guide shaft 83 is disposed inside the sleeve 81. The bottom end of the material guide shaft 83 penetrates the bottom shell wall of the sleeve 81 and is installed on the bottom shell wall of the outer sleeve 84. Two symmetrical notches are opened on the periphery of the outer sleeve 84, so that when the outer sleeve 84 rotates, it can not only scrape and clean the filter screen of the sleeve 81, but also switch and adjust the exposed position of the filter screen, thereby ensuring the filtration effect when extracting wastewater.

[0028] Please see Figures 9-11 In this embodiment of the invention, the adjustment component 7 includes a toothed chain 71, a sliding plate 72 and a swing arm 73. The toothed chain 71 includes two outer toothed rings and a chain. The two outer toothed rings are respectively fitted onto the outer shell wall of the corresponding outer sleeve 84. The two outer toothed rings are connected by the chain. When the toothed chain 71 moves, the outer sleeves 84 on the two fine filter components 8 rotate synchronously. The slide plate 72 is slidably connected to the inner left side of the pool body 11. The slide plate 72 is fixedly connected to the chain, and a straight groove is provided on the slide plate 72. A protruding rod is slidably connected in the straight groove. The swing arm 73 is set at the bottom end of the drive shaft, and the top end of the protruding rod is fixedly connected to the swing arm 73. When the drive shaft rotates, the cam moves in the straight groove on the slide plate 72 through the swing arm 73, thereby driving the slide plate 72 to move and pulling the toothed chain 71 to move.

[0029] Please see Figures 2-3 In this embodiment of the invention, the auxiliary component 10 includes a U-shaped frame 101 fixedly connected to the chemical treatment tank 9 by bolts. A stirring device body 102 for stirring liquid is provided at the center of the U-shaped frame 101. A feeding pipe for adding chemical agents is installed on the side of the stirring device body 102. A control valve is provided on the feeding pipe. The opening and closing of the control valve is controlled by an external controller body. Under the action of the feeding pipe, an appropriate amount of chemical agents are added to the chemical treatment tank 9. Then, under the stirring action of the stirring device body 102, the wastewater and chemical agents in the chemical treatment tank 9 are evenly mixed to ensure the effect of wastewater oxidation pretreatment. The output end of the water pump body 13 is also equipped with a pipe, the left end of which passes through the U-shaped frame 101 and extends into the chemical treatment tank 9; The main body 102 of the stirring device includes a motor that is fixedly connected to the top shell wall of the U-shaped frame 101 by bolts, and the output end of the motor is provided with a stirring shaft that extends into the chemical treatment tank 9.

[0030] The working principle of this invention is as follows: When treating wastewater, the wastewater first undergoes the wastewater conditioning and sedimentation processes in the pretreatment unit. Then, the pretreated wastewater enters the secondary treatment unit, where it undergoes biochemical treatment in the chemical and biological treatment processes. After that, the biochemically treated wastewater enters the fine purification unit for deep treatment, disinfection, and discharge. Finally, the treated water resources can be recycled and reused. After the wastewater is homogenized in the wastewater conditioning process, the corresponding water pump 13 is started by the external controller to transport the wastewater from the wastewater conditioning process to the wastewater sedimentation process. When the wastewater enters the wastewater sedimentation process, it first enters the pre-filter assembly 3 in the loading and unloading components. The wastewater impacts the impeller 32 in the pre-filter assembly 3, causing the impeller 32 to rotate. As a result, the blades 321 on the impeller 32 can switch. Due to the adsorption material filled in the receiving groove on each blade 321, when the wastewater impacts the impeller 32, some impurities in the wastewater will be adsorbed by the adsorption material in the blades 321, thereby achieving pre-filtration treatment of the wastewater. After impacting the impeller 32, the wastewater enters the material guiding channel 34. Finally, under the action of the discharge pipe 61 in the guide assembly 6, the wastewater enters the sedimentation tank 1. According to the wastewater sedimentation zone corresponding to the bottom end of the discharge pipe 61 at this time, the wastewater enters the wastewater sedimentation zone for sedimentation treatment. After the wastewater has filled the wastewater sedimentation zone, the external controller first shuts down the water pump 13 between the wastewater conditioning process and the wastewater sedimentation process. Then, it starts the multi-section electric push rod 41 in the drive assembly 4 to retract. At this time, it drives the rack 42 to adjust its displacement. The rack 42 meshes with the gear 43. When the multi-section electric push rod 41 drives the rack 42 to complete the retraction and reset, the rack 42 drives the gear 43 to complete a 180-degree counterclockwise rotation. The gear 43 also meshes with the arc-shaped toothed plate 62 in the flow guide assembly 6. Then, when the gear 43 rotates, the arc-shaped toothed plate 62 drives the discharge pipe 61 to rotate and adjust around the rotating connector as the rotation center through the support arm and the ring. This causes the bottom end of the discharge pipe 61 to pass over the partition 12 in the sedimentation tank 1 and correspond to another wastewater sedimentation zone in the tank 11. When gear 43 rotates, it synchronously drives the drive shaft to move. When the drive shaft rotates, it also synchronously drives the irregularly shaped switching plug 53 in the switching assembly 5 and the swing arm 73 in the adjusting assembly 7 to move synchronously. At this time, the movement of the irregularly shaped switching plug 53 in the switching assembly 5 causes the outlet port of the drainage pipe 52 corresponding to the wastewater sedimentation zone that has completed wastewater filling to be opened, while the outlet port of the drainage pipe 52 corresponding to the other wastewater sedimentation zone is blocked. When the swing arm 73 is in motion, it adjusts the slide plate 72 in the adjustment component 7, causing the toothed chain 71 to move. This, in turn, drives the outer sleeve 84 in the fine filter component 8 at the bottom of each drain pipe 52 to rotate half a circle. During the movement, the outer sleeve 84 scrapes and cleans the exposed filter screen on the sleeve 81 and switches the exposed area of ​​the filter screen. At the same time, it drives the material agitator 83 to move, thereby agitating the adsorbent material filled in the sleeve 81, reducing the probability of it agglomerating and ensuring its filtration effect on wastewater. After the unloading pipe 61 in the flow guide assembly 6 completes the switching adjustment, the external controller body restarts the water pump body 13 between the wastewater adjustment process and the wastewater sedimentation process, and transports the wastewater that has completed the adjustment treatment to the empty wastewater sedimentation area. At this time, the wastewater in the other wastewater sedimentation area can be allowed to settle. Because the pump body 13 between the wastewater conditioning process and the wastewater sedimentation process has a small wastewater transport capacity, it takes a long time to transport wastewater to the empty wastewater sedimentation area. During this time period, the wastewater in the other wastewater sedimentation area can achieve a static sedimentation effect. Then, when the subsequent wastewater sedimentation area is filled with wastewater, the external controller body will first pause the pump body 13 between the wastewater conditioning process and the wastewater sedimentation process, and then start the pump body 13 between the wastewater sedimentation process and the chemical treatment process. Due to the configuration of the irregular switching plug 53 in the switching component 5, the pump body 13 will transport the wastewater that has completed static sedimentation to the chemical treatment tank 9. After the wastewater that has settled is transported, the external controller shuts down the water pump 13 between the wastewater sedimentation process and the chemical treatment process, and starts the drive component 4 to switch and adjust the flow guide component 6, so that the wastewater in the wastewater conditioning process can be transported to the wastewater sedimentation area that has been emptied again. Then, after the wastewater enters the chemical treatment tank 9, the external controller will activate the stirring device 102 in the auxiliary component 10 and the control valve on the feeding pipe to allow the chemical agent to be added to the chemical treatment tank 9. The stirring device 102 will ensure the uniformity of mixing between the wastewater and the chemical agent, thereby improving the effect of wastewater oxidation pretreatment.

[0031] The above are merely preferred embodiments of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. A device for treating antimony-free reverse osmosis membrane production wastewater, comprising a pretreatment unit, a secondary treatment unit, and a fine purification unit, wherein, The pre-treatment unit comprises a wastewater conditioning process and a wastewater sedimentation process, the secondary treatment unit comprises a chemical treatment process and a biological treatment process, the fine purification unit comprises a deep treatment process and a disinfection and discharge process, water resources are transferred between each process by setting a water pump body (13), characterized in that: the wastewater sedimentation process comprises a sedimentation tank (1), and an upper and lower feeding component arranged on the sedimentation tank (1), wherein the upper and lower feeding component comprises a carrier (2), a pre-filtering assembly (3), a driving assembly (4), a switching assembly (5), a flow guide assembly (6), an adjusting assembly (7) and a fine filtering assembly (8), the carrier (2) is arranged on the sedimentation tank (1), the pre-filtering assembly (3), the driving assembly (4) and the switching assembly (5) are all arranged on the top of the carrier (2), and the driving assembly (4) and the switching assembly (5) are fixedly connected, the flow guide assembly (6) is movably connected to the carrier (2), and the flow guide assembly (6) is movably connected with the pre-filtering assembly (3) and is in meshing transmission with the driving assembly (4), the fine filtering assembly (8) comprises two, which are arranged at the bottoms of the switching assembly (5), respectively, and the two fine filtering assemblies (8) are linked through the adjusting assembly (7), and the adjusting assembly (7) is fixedly connected with the driving assembly (4); The chemical treatment process comprises a chemical treatment tank (9) and an auxiliary assembly (10), wherein the chemical treatment tank (9) is located on the left side of the sedimentation tank (1), and the auxiliary assembly (10) is arranged on the chemical treatment tank (9) and used for stirring the mixture of wastewater and chemical agents.

2. The apparatus for treating wastewater from production of antimony-free reverse osmosis membranes according to claim 1, characterized in that, The sedimentation tank (1) comprises a tank body (11) and a partition plate (12), wherein the tank body (11) is located on the ground, the partition plate (12) is located in the interior of the tank body (11) and separates the interior space of the tank body (11) to form two wastewater sedimentation areas, and the carrier (2) is fixedly connected to the top of the tank body (11) by bolts and located directly above the partition plate (12).

3. The apparatus for treating antimony-free reverse osmosis membrane production wastewater according to claim 2, characterized in that, The pre-filtering assembly (3) comprises a box body (31) fixedly connected to the carrier (2) by bolts, an impeller (32) is mounted in the box body (31) by a rotating shaft, a top cover (33) for covering is mounted on the top of the box body (31) by bolts, a material guiding channel (34) is mounted on the discharge end of the box body (31) by screws, and a hole for discharging wastewater is formed in the left end bottom of the material guiding channel (34); The impeller (32) comprises a cylinder sleeved on a rotating shaft, a plurality of blades (321) are integrally arranged on the outer circumferential wall of the cylinder in the circumferential direction, an accommodating groove for placing an adsorption material is formed in the interior of each blade (321), an inspection hole is formed in the top wall of the accommodating groove, an inspection cover (322) is mounted in the inspection hole by screws, and a plurality of adsorption holes for adsorbing impurities are matrixly formed in the side wall of each blade (321).

4. The apparatus for treating antimony-free reverse osmosis membrane production wastewater according to claim 3, characterized in that, The left side of the pre-filtering assembly (3) is provided with a sliding groove on the top shell wall of the carrier (2), and the left side of the sliding groove is provided with a base. The driving assembly (4) comprises a multi-section electric push rod (41) arranged on the base. The output end of the multi-section electric push rod (41) is provided with a splicing plate. The side wall of the splicing plate is provided with a rack (42) through bolts. The rack (42) is in sliding connection with the sliding groove. The right side of the rack (42) is provided with a gear (43) in engagement with the rack (42). The gear (43) is located directly below a circular hole on the carrier (2). A transmission shaft is rotatably connected in the circular hole. The gear (43) is sleeved on the transmission shaft.

5. The apparatus for treating antimony-free reverse osmosis membrane production wastewater according to claim 4, characterized in that, The switching assembly (5) comprises a circular box (51), a drainage tube (52), a special-shaped switching plug (53) and a box cover (54). The circular box (51) is located directly above the gear (43). The top end of the transmission shaft penetrates through the bottom shell wall of the circular box (51) and extends into the interior of the circular box (51). The special-shaped switching plug (53) is fixedly connected to the top end of the transmission shaft. The front and rear side shell walls of the circular box (51) are provided with slot holes. The slot holes are provided with guide pipes. The drainage tube (52) comprises two drainage tubes which are fixedly connected to the corresponding guide pipes through bolts. The bottom ends of the two drainage tubes (52) penetrate through the carrier (2) and correspond to the wastewater precipitation areas. The box cover (54) is fixedly connected to the top of the circular box (51) through bolts. The box cover (54) is connected with the water pump body (13) through a pipeline.

6. The apparatus for treating antimony-free reverse osmosis membrane production wastewater according to claim 4, characterized in that, An arc-shaped through slot is formed between the switching assembly (5) and the pre-filtering assembly (3) on the carrier (2). A support arm is in sliding connection with the arc-shaped through slot. A circular ring is welded to the bottom of the support arm. A mounting hole is formed directly below the hole on the carrier (2). The flow guide assembly (6) comprises a discharging pipe (61) and an arc-shaped toothed plate (62). The discharging pipe (61) is arranged in the circular ring. The top end of the discharging pipe (61) penetrates through the mounting hole and is connected with the hole in the material guiding channel (34) through a rotary connecting piece. The arc-shaped toothed plate (62) is fixedly connected to the top of the support arm through bolts and is in meshing transmission with the gear (43).

7. The apparatus for treating antimony-free reverse osmosis membrane production wastewater according to claim 5, characterized in that, The fine filtering assembly (8) comprises a sleeve (81), an end cover (82), a material disturbing shaft (83) and an outer sleeve (84). The end cover (82) is fixedly connected to the top end of the sleeve (81) through bolts. The top end of the end cover (82) is threadedly connected with the bottom end of the drainage tube (52). The outer sleeve (84) is rotatably connected to the outside of the sleeve (81). The material disturbing shaft (83) is arranged in the interior of the sleeve (81). The bottom end of the material disturbing shaft (83) penetrates through the bottom shell wall of the sleeve (81) and is arranged on the bottom shell wall of the outer sleeve (84).

8. The apparatus for treating antimony-free reverse osmosis membrane production wastewater according to claim 7, characterized in that, The adjusting assembly (7) comprises a toothed chain member (71), a sliding plate (72) and a swing arm (73). The toothed chain member (71) comprises two outer tooth rings and a chain. The two outer tooth rings are sleeved on the outer ring shell walls of the corresponding outer sleeves (84). The two outer tooth rings are connected through the chain. The sliding plate (72) is slidingly connected to the left inner wall of the pool body (11), is fixedly connected between the sliding plate (72) and the chain, and is provided with a straight groove, wherein a convex rod is slidingly connected; the swing arm (73) is arranged at the bottom end of the transmission shaft, and the top end of the convex rod is fixedly connected to the swing arm (73).

9. The apparatus for treating antimony-free reverse osmosis membrane production wastewater according to claim 1, characterized in that, The auxiliary assembly (10) comprises a U-shaped frame (101) fixedly connected to the chemical treatment pool (9) by bolts, a stirring device body (102) for stirring liquid is arranged at the center of the U-shaped frame (101), a feeding pipe for feeding chemical agents is arranged on the side of the stirring device body (102), a control valve is arranged on the feeding pipe, and the output end of the water pump body (13) is also provided with a pipeline, the left end of the pipeline penetrates through the U-shaped frame (101) and extends into the chemical treatment pool (9); The stirring device body (102) comprises a motor fixedly connected to the top shell wall of the U-shaped frame (101) by bolts, and the output end of the motor is provided with a stirring shaft extending into the chemical treatment pool (9).

Images