A waste liquid recovery treatment apparatus for membrane preparation

Abstract

The application discloses a kind of membrane preparation waste liquid recovery processing equipment, it is related to membrane preparation wastewater treatment technology, including processing box body, and the liquid discharge notch being opened in the right side upper portion of processing box body;Further include: the left side upper portion of processing box body is provided with initial filter component, and initial filter component contains initial filter box body, and the liquid outlet notch being opened in the right side upper portion of initial filter box body is correspondingly distributed in the left side upper portion of processing box body;Wherein, the right side outer wall of initial filter box body is rotatably provided with follow-up guide pulley by bearing, and follow-up guide pulley is arranged below liquid outlet notch;The inside of processing box body is provided with impurity removal component, and impurity removal component contains filter screen plate.This membrane preparation waste liquid recovery processing equipment, by initial filter box body to waste liquid precipitation, and discharge to processing box body inside carries out filtration treatment, and push the sundries in waste liquid to processing box body outside, avoid causing blockage at the same time, complex filter component carries out depth filtration, and then realize the recovery processing of membrane preparation waste liquid.

Description

Technical Field

[0001] This invention relates to the field of wastewater treatment technology for membrane preparation, specifically to a waste liquid recovery and treatment device for membrane preparation. Background Technology

[0002] Membrane manufacturing wastewater treatment refers to the treatment of industrial wastewater generated during membrane production using membrane separation technologies (such as microfiltration, ultrafiltration, and reverse osmosis). It primarily removes suspended solids, heavy metal ions, and organic matter to purify or reuse the water. Its core principle is utilizing the selective retention capacity of membranes to replace traditional sedimentation and filtration processes. This method offers advantages such as high efficiency, energy saving, and no secondary pollution. It typically uses pressure, concentration, or potential differences as driving forces, separating pollutants through physical sieving of membrane pore size or surface chemical properties to meet discharge or reuse standards.

[0003] The invention disclosed in CN115925169B is a waste liquid recycling and treatment device. The device can pre-filter large particulate impurities by setting a coarse filter, which greatly reduces the workload of the subsequent sedimentation filter and makes the classification and purification more efficient. In addition, the coarse filter can actively clean large particulate impurities in a timely manner. In the sedimentation filter, the fan ring filter is slidably assembled and the sliding filter mechanism can drive all the fan ring filter to rise and fall and shake synchronously, so that when the filter holes of the fan ring filter are blocked, they can be actively and quickly cleaned.

[0004] The invention disclosed in CN115465993A is a waste liquid recycling and treatment device. The grid plate is placed at an angle in the recycling bin, and the limiting plate is installed above the puncture plate. The limiting plate is composed of several sets of interlaced inserts, which facilitates the simultaneous processing of multiple waste liquid bags, facilitates the recycling of waste liquid bags, facilitates disassembly and maintenance, facilitates filtration, has a good sterilization effect, facilitates observation of the remaining liquid, and is easy to move. This waste liquid recycling and treatment device is used to overcome the defects in the prior art.

[0005] However, the above-disclosed waste liquid recycling and treatment device still has the following problems in actual use: the waste liquid is treated by filtration components and sterilization methods, but the waste liquid in this treatment method is mainly in a straight flow and falls from top to bottom by gravity, which makes the waste liquid flow at a fast speed. It is difficult for the filtration components to achieve fine and comprehensive treatment. At the same time, the impact flow is more likely to increase the adhesion of dirt and contaminants to the treatment mechanism, thereby affecting the waste liquid treatment efficiency and the service life of the treatment device.

[0006] Therefore, we propose a waste liquid recycling and treatment device for membrane preparation to solve the problems mentioned above. Summary of the Invention

[0007] The purpose of this invention is to provide a waste liquid recycling and treatment device for membrane preparation. This addresses the problem that existing waste liquid treatment methods, which use filtration components and sterilization, primarily involve direct flow of the waste liquid, falling from top to bottom due to gravity. This results in a high flow rate, making it difficult for the filtration components to achieve thorough and comprehensive treatment. Furthermore, the impact-type flow increases the adhesion of contaminants to the treatment mechanism, thereby affecting the waste liquid treatment efficiency and the service life of the treatment device.

[0008] To achieve the above objectives, the present invention provides the following technical solution: a waste liquid recycling and treatment device for membrane preparation, comprising a treatment tank and a drain outlet located on the upper right side inside the treatment tank; further comprising:

[0009] A primary filter assembly is provided on the upper left side of the processing box, and the primary filter assembly includes a primary filter box. The liquid outlet opening on the upper right side of the primary filter box is correspondingly distributed on the upper left side of the processing box.

[0010] Among them, the right outer wall of the primary filter box is equipped with a follower guide wheel through a bearing, and the follower guide wheel is located below the liquid outlet.

[0011] The processing box is equipped with a waste removal component, which includes a waste filter screen plate, and a waste removal slide plate is attached to the top of the waste filter screen plate.

[0012] Preferably, the primary filter assembly includes a primary filter box fixedly installed on the upper left side of the treatment box, and a diversion and delivery pipe is fixedly installed on the left side of the primary filter box, and a storage tank is fixedly installed on the upper right side of the primary filter box for dispensing flocculant and treatment agent.

[0013] Preferably, the primary filter assembly includes a drive shaft, which is fixedly installed at the front and rear ends of the follower guide wheel. A feeding roller is fixedly installed on the outer wall of the middle part of the symmetrically distributed drive shaft, and a material storage guide groove is provided inside the feeding roller.

[0014] Preferably, the primary filtration assembly includes a guide pipe, which is fixedly installed on the front and rear sides of the primary filtration box. The left end of the guide pipe is connected to the storage tank through a guide hose, and the right end of the guide pipe is attached to the outer wall of the feeding roller to fill the treatment agent and flocculant into the storage guide trough.

[0015] Preferably, the primary filter assembly includes a stirring shaft, which is rotatably mounted on the lower right side of the primary filter housing via a bearing. The bottom end of the stirring shaft extends to the inner left side of the processing housing and is rotatably connected to the processing housing via a bearing. The top end of the stirring shaft is engaged with the middle of the follower guide wheel via a bevel gear set.

[0016] Preferably, the impurity removal assembly includes a main sedimentation baffle and a secondary sedimentation baffle, which are respectively fixedly installed on the left and right sides inside the processing box. The top of the main sedimentation baffle is lower than the horizontal height of the top surface of the processing box, and the bottom of the secondary sedimentation baffle is higher than the horizontal height of the bottom surface of the processing box.

[0017] Preferably, the impurity removal assembly includes a filter screen plate fixedly installed above the main sedimentation baffle and the secondary sedimentation baffle on the left and right sides, and a reciprocating screw with a bearing rotatably installed inside the processing box is provided in the upper center of the filter screen plate, and the rear end of the reciprocating screw is connected to the shaft end of the drive motor through a pulley assembly.

[0018] Preferably, the impurity removal assembly includes an impurity removal slider, which is threaded onto the outer wall of the reciprocating lead screw and is fixedly connected to the impurity removal slide plate. Furthermore, an abutment pusher is fixedly installed on the top of the impurity removal slider, and transmission brackets are provided on both the front and rear sides of the abutment pusher.

[0019] Preferably, the waste removal component includes waste removal arc grooves, which are opened on the front and rear sides of the processing box. Anti-overflow plugs are slidably installed inside the waste removal arc grooves, and the anti-overflow plugs are fixedly connected to the bottom end of the transmission bracket. Meanwhile, the transmission bracket is located at the inner end of the processing box and is connected to it through a return spring.

[0020] Preferably, the impurity removal component includes a secondary filter component, which is fixedly installed on the upper right side inside the processing chamber and is distributed correspondingly to the drain outlet. The secondary filter component filters the waste liquid after sedimentation and separation through its internal filter element and then discharges it outward through the drain outlet.

[0021] Compared with the prior art, the beneficial effects of the present invention are as follows: This waste liquid recycling and treatment equipment for membrane preparation uses a primary filter tank to settle the waste liquid, which is then discharged into a treatment tank for filtration. This pushes impurities in the waste liquid to the outside of the treatment tank, preventing clogging. At the same time, the secondary filter component performs deep filtration, thereby realizing the recycling and treatment of membrane preparation waste liquid. The specific details are as follows:

[0022] 1. Waste liquid is discharged into the primary filter tank through the diversion and delivery pipe, and accumulates in the primary filter tank so that after reaching the height of the outlet, it flows to the outside through the outlet. It is separated from the main sedimentation baffle inside the treatment tank so that sedimentation treatment can be carried out in the area on the left.

[0023] When the waste liquid flows, it drives the follower guide wheel, the transmission shaft and the feeding roller to rotate. When the storage guide groove of the feeding roller rotates to the inside of the guide tube, the treatment agent passes through the inside of the storage guide groove. After rotating to the outside of the guide tube, the centrifugal force of the rotation separates the stored flocculant and treatment agent downwards so that they can be put into the inside left side of the treatment tank and mixed with the pre-filtered waste liquid.

[0024] 2. The follower guide wheel drives the stirring shaft through the bevel gear assembly. The stirring shaft rotates in the area between the treatment tank and the main sedimentation baffle to stir and mix the waste liquid containing the treatment agent and flocculant, thereby improving the efficiency of waste liquid treatment.

[0025] 3. The waste liquid overflows into the interior of the filter screen plate, where the impurities inside the waste liquid are screened and treated. At this time, the impurities are stored on the upper surface of the filter screen plate. The bidirectional screw drives the discharge slider, discharge slide plate, and abutment push block to move back and forth. During the sliding process, the discharge slide plate guides the impurities stored on the surface of the filter screen plate and drives the impurities to move to the front and rear sides of the filter screen plate.

[0026] Furthermore, the pusher contacts the transmission bracket, causing the anti-overflow plate to move outward, opening the previously blocked discharge arc channel. The discharge slide plate, which moves along with it, pushes the impurities outward through the opened discharge arc channel, thus preventing the filtered impurities from affecting the waste liquid treatment operation.

[0027] 4. The waste liquid after being treated by the filter screen plate flows into the interior of the secondary filter assembly and is deeply filtered by the filter element, so that it can be discharged to the outside of the treatment tank through the drain outlet, thereby realizing the recycling and treatment of membrane preparation waste liquid. Attached Figure Description

[0028] Figure 1 This is a schematic diagram of the overall three-dimensional structure of the present invention;

[0029] Figure 2 This is a schematic diagram of the installation structure of the primary filter box of the present invention;

[0030] Figure 3 This is a schematic diagram of the installation structure of the stirring shaft of the present invention;

[0031] Figure 4 For the present invention Figure 3 Enlarged structural diagram at point A in the middle;

[0032] Figure 5 This is a three-dimensional structural diagram of the inclined guide tube of the present invention;

[0033] Figure 6 For the present invention Figure 5 Enlarged structural diagram at point B;

[0034] Figure 7 This is a three-dimensional structural diagram of the filter screen plate of the present invention;

[0035] Figure 8 This is a schematic diagram of the structure of the anti-overflow plug plate after it has slid.

[0036] Figure 9 For the present invention Figure 8 Enlarged structural diagram at point C;

[0037] Figure 10 This is a schematic diagram of the sliding structure of the debris removal slide plate of the present invention;

[0038] Figure 11 This is a schematic diagram of the installation structure of the double filter assembly of the present invention.

[0039] In the diagram: 1. Processing tank; 2. Drainage outlet; 3. Primary filter tank; 4. Outlet outlet; 5. Follow-up guide wheel; 6. Filter screen; 7. Impurity discharge slide plate; 8. Diversion and conveying pipe; 9. Storage tank; 10. Transmission shaft; 11. Feeding roller; 12. Storage guide trough; 13. Guide inclined pipe; 14. Guide hose; 15. Stirring shaft; 16. Conical gear assembly; 17. Main sedimentation baffle; 18. Secondary sedimentation baffle; 19. Reciprocating screw; 20. Pulley assembly; 21. Drive motor; 22. Impurity discharge slider; 23. Push frame; 24. Transmission support; 25. Impurity discharge arc groove; 26. Anti-overflow plate; 27. Return spring; 28. Secondary filter assembly. Detailed Implementation

[0040] 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.

[0041] Please see Figures 1-11 The present invention provides the following technical solution:

[0042] Example 1: To address the existing problems in the recycling and treatment of waste liquid from membrane preparation, this example discloses the following technical solution: a waste liquid recycling and treatment device for membrane preparation, comprising a treatment tank 1, a primary filter assembly disposed on the upper left side of the treatment tank 1, the primary filter assembly including a primary filter box 3, and an outlet trough 4 opened on the upper right side of the primary filter box 3 correspondingly distributed on the upper left side of the treatment tank 1; wherein, a follower guide wheel 5 is rotatably disposed on the outer right side of the primary filter box 3 via a bearing, and the follower guide wheel 5 is disposed below the outlet trough 4;

[0043] The primary filter assembly includes a primary filter housing 3 fixedly installed on the upper left side of the treatment housing 1, and a diversion and conveying pipe 8 fixedly installed on the left side of the primary filter housing 3, and a storage tank 9 fixedly installed on the upper right side of the primary filter housing 3 for dispensing flocculant and treatment agent; the primary filter assembly includes a drive shaft 10, and the drive shaft 10 is fixedly installed at the front and rear ends of the follower guide wheel 5, and a feeding roller 11 is fixedly installed on the outer wall of the middle part of the symmetrically distributed drive shaft 10, and a storage guide groove 12 is opened inside the feeding roller 11; the primary filter assembly includes a guide pipe 13, and the guide pipe 13 is fixedly installed on the front and rear sides of the exterior of the primary filter housing 3, and the left end of the guide pipe 13 is connected to the storage tank 9 through a guide hose 14, and the right end of the guide pipe 13 is attached to the outer wall of the feeding roller 11 to fill the treatment agent and flocculant into the storage guide groove 12.

[0044] like Figure 3 , Figures 5-6 As shown, by connecting the membrane preparation waste liquid pipeline with the diversion and delivery pipe 8, the waste liquid is first transported to the interior of the primary filter tank 3 for static sedimentation treatment by the diversion and delivery pipe 8. After the waste liquid inside the primary filter tank 3 gradually accumulates to the position of the outlet 4, the impurities settle downwards, while the waste liquid overflows outwards through the outlet 4 to enter the interior of the treatment tank 1. At the same time, the interior space of the treatment tank 1 is separated by the main sedimentation partition 17 and the secondary sedimentation partition 18, so that the waste liquid initially settled inside the primary filter tank 3 is first stored on the left side of the main sedimentation partition 17 inside the treatment tank 1.

[0045] Furthermore, as the waste liquid overflows outward through the outlet 4, it drives the follower guide wheel 5 on the lower right side of the primary filter box 3 to rotate. The transmission shafts 10 at both ends of the follower guide wheel 5 drive the feeding roller 11 to rotate synchronously. During the rotation, the feeding roller 11 is in contact with the right end of the guide tube 13. The flocculant and treatment agent used to treat the waste liquid are transported to the inside of the guide tube 13 through the storage tank 9 and the guide hose 14. After the storage guide trough 12 inside the feeding roller 11 rotates to the inside of the guide tube 13, the flocculant and treatment agent flow obliquely into the storage guide trough 12. After following the feeding roller 11 to the outside of the guide tube 13, the centrifugal force of the rotation separates the stored flocculant and treatment agent downward so that they can be released into the left side of the inside of the treatment box 1 and mixed with the primary filtered waste liquid.

[0046] Example 2: To address the existing problems in the recycling and treatment of waste liquid from membrane preparation, this example discloses the following technical solution: The primary filtration assembly includes a stirring shaft 15, which is rotatably mounted on the lower right side of the primary filtration chamber 3 via a bearing. The bottom end of the stirring shaft 15 extends to the left side of the interior of the treatment chamber 1 and is rotatably connected to the treatment chamber 1 via a bearing. The top end of the stirring shaft 15 is engaged with the middle of the follower guide wheel 5 via a bevel gear set 16. The impurity removal assembly includes a main sedimentation baffle 17 and a secondary sedimentation baffle 18, which are fixedly mounted on the left and right sides of the interior of the treatment chamber 1, respectively. The top end of the main sedimentation baffle 17 is lower than the horizontal level of the top surface of the treatment chamber 1, and the bottom end of the secondary sedimentation baffle 18 is higher than the horizontal level of the bottom surface of the treatment chamber 1.

[0047] like Figures 2-4 As shown, during the rotation of the follower guide wheel 5 on the lower right side of the primary filter box 3, the stirring shaft 15, which is meshed with the conical tooth group 16 in the middle, is driven to rotate. The transmission part of the meshing conical tooth group 16 is protected by a waterproof box to prevent the waste liquid from causing corrosion or other effects on the transmission part. At the same time, the stirring shaft 15 rotates in the area between the treatment box 1 and the main sedimentation partition 17 to stir and mix the waste liquid containing the treatment agent and flocculant.

[0048] Example 3: In order to solve the problems existing in the recycling and treatment of waste liquid in the current membrane preparation, this example discloses the following technical solution: The inside of the treatment box 1 is provided with a waste removal component, and the waste removal component includes a waste filter screen plate 6, and a waste removal slide plate 7 is attached to the top of the waste filter screen plate 6; the waste filter screen plate 6 included in the waste removal component is fixedly installed above the main sedimentation partition plate 17 and the secondary sedimentation partition plate 18 on the left and right sides, and a reciprocating screw 19 with a bearing rotatably installed inside the treatment box 1 is provided in the middle of the top of the waste filter screen plate 6, and the rear end of the reciprocating screw 19 is connected to the shaft end of the drive motor 21 through a pulley assembly 20.

[0049] The waste removal assembly includes a waste removal slider 22, which is threaded onto the outer wall of the reciprocating screw 19 and is fixedly connected to the waste removal slide plate 7. A contact pusher 23 is fixedly installed on the top of the waste removal slider 22, and transmission brackets 24 are provided on both the front and rear sides of the contact pusher 23. The waste removal assembly includes a waste removal arc groove 25, which is opened on both the front and rear sides of the processing box 1. An anti-overflow plate 26 is slidably installed inside the waste removal arc groove 25, and the anti-overflow plate 26 is fixedly connected to the bottom end of the transmission bracket 24. The transmission bracket 24 is located at the inner end of the processing box 1 and is connected to it through a return spring 27.

[0050] like Figures 7-10As shown, the waste liquid after treatment and flocculation is stored in an area separated by the main sedimentation baffle 17 inside the treatment tank 1. As it gradually accumulates, the water level rises above the height of the main sedimentation baffle 17 so that it overflows to the right side of the main sedimentation baffle 17. At this time, the wastewater enters the interior of the filter screen plate 6, where the filter screen plate 6 screens out the impurities inside the waste liquid. The impurities are then stored on the upper surface of the filter screen plate 6 to prevent them from flowing with the waste liquid and affecting the treatment.

[0051] Furthermore, the drive motor 21 at the rear of the processing box 1 drives the bidirectional lead screw 19 to rotate. The waste removal slider 22, which is threadedly connected to the bidirectional lead screw 19, is limited by the waste removal slide plate 7. This allows the rotating bidirectional lead screw 19 to drive the waste removal slider 22, the waste removal slide plate 7, and the abutting push block 23 to move back and forth. At the same time, the waste removal slide plate 7 guides the dirt stored on the surface of the filter screen plate 6 during the sliding process and drives the dirt to move to the front and rear sides of the filter screen plate 6.

[0052] Furthermore, when the discharge slider 22 moves the pusher 23 to the side of the treatment box 1 and contacts the transmission bracket 24 connected to the return spring 27, it drives the transmission bracket 24 and the anti-overflow plate 26 connected to the bottom to move to the outside of the treatment box 1. At the same time, it opens the previously blocked discharge arc groove 25, and the discharge slide 7, which moves along with it, pushes the dirt through the opened discharge arc groove 25 to the outside, thereby preventing the filtered dirt from affecting the waste liquid treatment operation.

[0053] A drain outlet 2 is provided on the upper right side inside the treatment chamber 1; the impurity removal component includes a secondary filter component 28, which is fixedly installed on the upper right side inside the treatment chamber 1, and the secondary filter component 28 is distributed correspondingly to the drain outlet 2. The secondary filter component 28 filters the waste liquid after sedimentation and separation through its internal filter element, and then discharges it outward through the drain outlet 2.

[0054] like Figures 1-2 , Figure 11 As shown, the waste liquid treated by the filter screen plate 6 inside the treatment tank 1 flows downward and is separated by the secondary sedimentation baffle 18 on the right side, so that the waste liquid accumulates on the right side inside the treatment tank 1. After the water level reaches the height of the secondary filter assembly 28, it flows into the secondary filter assembly 28 and is deeply filtered by the filter element, so that it is discharged to the outside of the treatment tank 1 through the drain trough 2, thereby realizing the recycling and treatment of membrane preparation waste liquid.

[0055] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A waste liquid recycling and treatment device for membrane preparation, comprising a treatment tank (1) and a drain outlet (2) located on the upper right side inside the treatment tank (1); Its features are, Also includes: A primary filter assembly is provided on the upper left side of the processing box (1), and the primary filter assembly includes a primary filter box (3). The liquid outlet (4) opened on the upper right side of the primary filter box (3) is correspondingly distributed on the upper left side of the processing box (1). Among them, the outer right side of the primary filter box (3) is provided with a follower guide wheel (5) through a bearing, and the follower guide wheel (5) is located below the liquid outlet (4); The processing box (1) is equipped with a waste removal component, which includes a waste filter screen (6) and a waste removal slide plate (7) is attached to the top of the waste filter screen (6). The primary filter assembly includes a drive shaft (10), which is fixedly installed at the front and rear ends of the follower guide wheel (5). A feeding roller (11) is fixedly installed on the outer wall of the middle part of the symmetrically distributed drive shaft (10), and a material storage guide groove (12) is opened inside the feeding roller (11). The primary filter assembly includes a stirring shaft (15), which is rotatably mounted on the lower right side of the primary filter box (3) via a bearing. The bottom end of the stirring shaft (15) extends to the left side of the interior of the processing box (1) and is rotatably connected to the processing box (1) via a bearing. The top end of the stirring shaft (15) is engaged with the middle of the follower guide wheel (5) via a bevel gear set (16). The impurity removal assembly includes a main sedimentation baffle (17) and a secondary sedimentation baffle (18), and the main sedimentation baffle (17) and the secondary sedimentation baffle (18) are respectively fixedly installed on the left and right sides inside the processing box (1), and the top of the main sedimentation baffle (17) is lower than the horizontal height of the top surface of the processing box (1), and the bottom of the secondary sedimentation baffle (18) is higher than the horizontal height of the bottom surface of the processing box (1); The impurity removal assembly includes a filter screen plate (6) which is fixedly installed above the main sedimentation partition plate (17) and the secondary sedimentation partition plate (18) on the left and right sides. A reciprocating screw (19) with bearings is provided in the middle of the upper part of the filter screen plate (6) and is rotatably installed inside the processing box (1). The rear end of the reciprocating screw (19) is connected to the shaft end of the drive motor (21) through a pulley assembly (20). The impurity removal assembly includes an impurity removal slider (22), which is threaded onto the outer wall of the reciprocating screw (19). The impurity removal slider (22) is fixedly connected to the impurity removal slide plate (7), and a contact pusher (23) is fixedly installed on the top of the impurity removal slider (22). A transmission bracket (24) is provided on both the front and rear sides of the contact pusher (23). The waste removal assembly includes a waste removal arc groove (25), which is located on the front and rear sides of the processing box (1). An anti-overflow plate (26) is slidably installed inside the waste removal arc groove (25), and the anti-overflow plate (26) is fixedly connected to the bottom end of the transmission bracket (24). Meanwhile, the transmission bracket (24) is located at the inner end of the processing box (1) and is connected to it through a return spring (27).

2. The waste liquid recovery and treatment equipment for membrane preparation according to claim 1, characterized in that: The primary filter assembly includes a primary filter box (3) which is fixedly installed on the upper left side of the treatment box (1). A diversion and delivery pipe (8) is fixedly installed on the left side of the primary filter box (3), and a storage box (9) is fixedly installed on the upper right side of the primary filter box (3) for dispensing flocculant and treatment agent.

3. The waste liquid recovery and treatment equipment for membrane preparation according to claim 1, characterized in that: The primary filter assembly includes a guide tube (13), which is fixedly installed on the front and rear sides of the primary filter box (3). The left end of the guide tube (13) is connected to the storage tank (9) through a guide hose (14), and the right end of the guide tube (13) is attached to the outer wall of the feeding roller (11) to fill the treatment agent and flocculant into the storage guide trough (12).

4. The waste liquid recovery and treatment equipment for membrane preparation according to claim 1, characterized in that: The impurity removal component includes a secondary filter component (28), which is fixedly installed on the upper right side inside the processing box (1). The secondary filter component (28) is distributed correspondingly to the drain outlet (2). The secondary filter component (28) filters the waste liquid after sedimentation and separation through the internal filter element and then discharges it outward through the drain outlet (2).

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