Flame-retardant polyimide preparation wastewater treatment equipment

Abstract

The invention relates to the field of wastewater treatment, in particular to flame-retardant polyimide preparation wastewater treatment equipment which comprises a waste barrel and a water storage barrel. And the waste barrel is connected with a water storage barrel. Flocculate is intercepted through a first filter screen, part of the flocculate is discharged through a through hole formed in the upper portion of a limiting cylinder, but the discharged flocculate cannot make contact with the first filter screen immediately, the discharged flocculate is blocked by a baffle in the upward moving process, the flocculate is prevented from directly floating upwards and making contact with the first filter screen, and the flocculate is prevented from being blocked by the baffle in the upward moving process. If blocking is not carried out, the flocculates can penetrate through the first filter screen and move to the position above the first filter screen, then the first filter screen does not have the intercepting effect, water above the first filter screen contains the flocculates, and the intercepting mode through the first filter screen loses efficacy.

Description

[0001] This application is a divisional application of the application filed on September 24, 2024, with application number 202411331460.2 and invention name “A flame retardant polyimide preparation wastewater treatment device”. Technical Field

[0002] The invention relates to the field of wastewater treatment, and in particular to wastewater treatment equipment for preparing flame-retardant polyimide. Background Art

[0003] Flame retardant polyimide is a high-performance polymer. It is widely used in aerospace, electronics, automotive and other fields due to its excellent heat resistance, chemical stability and mechanical properties. However, a large amount of wastewater will be generated during the preparation process. In order to save energy loss, sedimentation is usually used to separate and treat the wastewater. In order to increase efficiency, flocculants are usually added to speed up the sedimentation process. However, flocculants are added to water to accelerate the removal of impurities in the wastewater through flocculation. However, some floccules will float on the water due to their low density, and then need to be cleaned separately, and then subsequent separation work will be carried out again, resulting in extremely low work efficiency. In addition, the wastewater will still contain impurities after treatment, and secondary separation work is required. Summary of the invention

[0004] In order to overcome the disadvantages of accelerating the removal of impurities in wastewater by flocculation, some floccules will float on the water surface due to their too small density, and then need to be cleaned separately, and then subsequent separation work will be carried out again, resulting in extremely low work efficiency, and the wastewater after treatment will still contain impurities and require secondary separation work, the present invention provides a flame retardant polyimide preparation wastewater treatment equipment.

[0005] The technical solution is: a flame retardant polyimide preparation wastewater treatment equipment, including a waste barrel and a water storage barrel; the waste barrel is connected to the water storage barrel; It also includes a bearing seat, a motor, a latch, a rotating roller, a winding roller, a pull rope, a conveying wheel, a first filter screen, a baffle, a limit cylinder and a material cylinder; a plurality of bearing seats are fixedly connected to the water storage barrel; a plurality of bearing seats located on the right side are bolted to the motor; a rotating roller is passed through a plurality of bearing seats in the front, and another rotating roller is passed through a plurality of bearing seats in the rear; the output shaft of each motor is connected to the corresponding rotating roller; a latch is plugged into each rotating roller, and each latch is plugged into the output shaft of the corresponding motor; a plurality of winding rollers are fixedly connected to each rotating roller, and each winding roller is located in the corresponding bearing seat; a pull rope is wound around each winding roller; a plurality of conveying wheels are rotatably connected to the water storage barrel; all the pull ropes pass through the corresponding conveying wheels and are fixedly connected to the first filter screen, and the first filter screen is in contact with the water storage barrel; a plurality of baffles are fixedly connected to the first filter screen; a limit cylinder is fixedly connected to each baffle, and a plurality of through holes distributed at equal intervals are opened on each limit cylinder; a material cylinder is passed through each limit cylinder.

[0006] Furthermore, the frame parts of the first filter screen, the baffle, the limiting cylinder and the material cylinder are made of plastic material with a density lower than that of water.

[0007] Furthermore, a damping type rotation connection is arranged between the rotating roller and the bearing seat.

[0008] Furthermore, the first filter screen is arranged in a downwardly inclined conical structure.

[0009] Furthermore, it also includes an interception component, which includes a first electric push rod, a first connecting plate, a connecting frame and a second filter; a plurality of first electric push rods are fixedly connected to the water storage barrel; a first connecting plate is fixedly connected to the telescopic end of each first electric push rod; a plurality of first connecting plates on the same side are commonly fixedly connected to the second filter, all the second filters are slidably connected to the water storage barrel, and all the second filters are in contact with the first filter.

[0010] Furthermore, the filter holes of the second filter are smaller than those of the first filter.

[0011] Furthermore, the second filter is arranged in an inclined structure.

[0012] Furthermore, it also includes a blocking component, which includes a second electric push rod, a second connecting plate, an isolation plate and a connecting pipe; a plurality of second electric push rods are fixedly connected to the water storage barrel; a second connecting plate is fixedly connected to the telescopic end of each second electric push rod; a plurality of second connecting plates on the same side are commonly fixedly connected to the isolation plate; a plurality of connecting pipes are passed through each isolation plate; a plurality of nozzles are opened on each isolation plate, and the nozzles are connected to the corresponding connecting pipes.

[0013] Furthermore, the outer surface of the isolation plate is covered with a rubber sleeve.

[0014] Furthermore, sponge rods are arranged in the connecting pipe and the nozzle.

[0015] The present invention has the following advantages: 1. The present invention intercepts floccules through the first filter screen, and part of the floccules will be discharged through the through hole opened above the limit cylinder, but the discharged floccules will not immediately contact the first filter screen. The discharged floccules will be blocked by the baffle in the process of moving upward to prevent the floccules from floating upward directly and contacting the first filter screen. If it is not blocked, the floccules will pass through the first filter screen and move above the first filter screen, thereby causing the first filter screen to have no interception effect, resulting in the presence of floccules in the water above the first filter screen, making the interception method through the first filter screen ineffective; 2. The present invention uses two second filters to intercept larger particle impurities in the wastewater during the process of the water delivery device passing the wastewater into the waste barrel and the water storage barrel, thereby preventing the impurities in the wastewater from being intercepted by the first filter and affecting the subsequent wastewater treatment process; 3. In the process of pumping water, the connecting pipe and the nozzle are both provided with sponge rods, that is, in the process of pumping water, the remaining impurities in the water are filtered out by the sponge rods. At the same time, in the process of pumping water, the flocculants precipitated in the isolation plate are blocked by the isolation plate to prevent the flocculants from being stirred by the water flow during the pumping process. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic diagram of the structure of the wastewater treatment equipment for preparing the flame-retardant polyimide of the present invention; Figure 2 This is a schematic diagram of the combined structure of the latch, rotating roller and winding roller of the wastewater treatment equipment for preparing the flame-retardant polyimide of the present invention; Figure 3 This is a schematic diagram of the combined structure of the conveying wheel, the first filter screen and the baffle of the wastewater treatment equipment for preparing the flame-retardant polyimide of the present invention; Figure 4 This is a schematic diagram of the combined structure of the limiting cylinder and the material cylinder of the wastewater treatment equipment for preparing the flame-retardant polyimide of the present invention; Figure 5 This is a schematic diagram of the structure of the interception component of the wastewater treatment equipment prepared by the flame-retardant polyimide of the present invention; Figure 6 It is a schematic diagram of the explosion structure of the first filter screen, the connecting frame and the second filter screen of the wastewater treatment equipment for preparing the flame-retardant polyimide of the present invention; Figure 7 This is a schematic diagram of the structure of a wastewater treatment equipment plugging assembly prepared by the flame-retardant polyimide of the present invention; Figure 8 This is a schematic diagram of the combined structure of the second connecting plate and the isolation plate of the wastewater treatment equipment prepared by the flame-retardant polyimide of the present invention; Fig. 9This is a schematic diagram of the combined structure of the isolation plate and the connecting pipe of the wastewater treatment equipment prepared by the flame retardant polyimide of the present invention.

[0017] Figure numbers: 1-waste barrel, 2-water barrel, 3-bearing seat, 4-motor, 5-latch, 6-rotating roller, 7-winding roller, 8-pull rope, 9-conveyor wheel, 10-first filter screen, 11-baffle, 12-limiting cylinder, 13-material cylinder, 101-first electric push rod, 102-first connecting plate, 103-connecting frame, 104-second filter screen, 201-second electric push rod, 202-second connecting plate, 203-isolating plate, 20301-nozzle, 204-connecting pipe. DETAILED DESCRIPTION

[0018] First of all, it should be pointed out that in the different described embodiments, the same parts are provided with the same reference numerals or the same component names, wherein the disclosure contained in the entire description can be transferred to the same parts with the same reference numerals or the same component names. Selected positional descriptions in the description, such as top, bottom, lateral, etc., also refer to the directly described and shown figures and are transferred to the new positions in the case of a change in position. Example

[0019] like Figure 1-Figure 5 As shown, a flame retardant polyimide preparation wastewater treatment equipment includes a waste barrel 1 and a water storage barrel 2; the waste barrel 1 is connected to the water storage barrel 2; It also includes a bearing seat 3, a motor 4, a latch 5, a rotating roller 6, a winding roller 7, a pull rope 8, a conveying wheel 9, a first filter screen 10, a baffle 11, a limit cylinder 12 and a material cylinder 13; four rectangularly distributed bearing seats 3 are fixedly connected to the water storage barrel 2; the two bearing seats 3 on the right are bolted to the motor 4; the two front bearing seats 3 are penetrated with a rotating roller 6, and the two rear bearing seats 3 are penetrated with another rotating roller 6; the output shaft of each motor 4 is connected to the corresponding rotating roller 6; each rotating roller 6 is plugged with a latch 5, and each latch 5 is plugged with the output shaft of the corresponding motor 4; each Each rotating roller 6 is fixedly connected to two symmetrically arranged winding rollers 7, and each winding roller 7 is located in the corresponding bearing seat 3; a pull rope 8 is wound around each winding roller 7; four equidistantly distributed conveying wheels 9 are rotatably connected to the water storage barrel 2; all the pull ropes 8 pass through the corresponding conveying wheels 9 and are fixedly connected to a first filter screen 10, and the first filter screen 10 is in contact with the water storage barrel 2; five equidistantly distributed baffles 11 are fixedly connected to the first filter screen 10; each baffle 11 is fixedly connected to a limiting cylinder 12, and each limiting cylinder 12 is provided with equidistantly distributed through holes; each limiting cylinder 12 is penetrated by a material cylinder 13.

[0020] The frame parts of the first filter screen 10, baffle 11, limiting cylinder 12 and material cylinder 13 are made of plastic material with a density lower than that of water, which is used to reduce weight and slow down the downward movement speed of the first filter screen 10, baffle 11, limiting cylinder 12 and material cylinder 13 so that the flocculant in the material cylinder 13 can fully mix and react with the wastewater.

[0021] A damping type rotation connection is provided between the rotating roller 6 and the bearing seat 3, so as to increase the resistance and keep the winding roller 7 rotating slowly.

[0022] The first filter screen 10 is provided with a downwardly inclined conical structure for guiding flocculants.

[0023] The specific working contents of the present invention are as follows: First, the staff will open the lid on the material barrel 13, then put the flocculant into the material barrel 13, and then use the external water supply equipment to pass the wastewater generated in the preparation process of flame-retardant polyimide into the waste barrel 1 and the water storage barrel 2 until the water level is flush with the first filter 10. Since the flocculant in the material barrel 13 is located in the wastewater, and under the action of the flocculant, the suspended particulate impurities in the wastewater are aggregated to form floccules. The floccules will be concentrated in large quantities inside and outside the limiting barrel 12. During the flocculation process, it should be noted that when using the sedimentation method for wastewater treatment, flocculants will be added to the water to accelerate the removal of impurities in the wastewater by flocculation, but some of the floccules will float on the water due to their small density. , and then it needs to be cleaned separately, and then the subsequent separation work is carried out again. Then the staff pulls out the latch 5, so that the motor 4 and the rotating roller 6 are converted into a rotating connection, that is, the winding roller 7 loses the limit of the motor 4. As the flocculants gather in large quantities on the limiting cylinder 12, the weight of the flocculants on the limiting cylinder 12 gradually increases, and the motor 4 and the rotating roller 6 are converted into a rotating connection, that is, in this process, the limiting cylinder 12 drives the first filter screen 10, the baffle 11 and the material cylinder 13 to move downward in the water storage barrel 2, and pulls the pull rope 8 to make the winding roller 7 rotate with the rotating roller 6 as the rotation center to carry out the unwinding work. Since the rotating roller 6 and the bearing seat 3 are in a damping rotation connection, that is, the winding roller 7 rotates slowly, that is, the limiting cylinder 12 moves downward at a slow speed. During this process, the flocculant in the material barrel 13 can have enough time to react with the wastewater and remove impurities in the wastewater. During the downward movement, the wastewater enters the material barrel 13 through the through hole below the limiting barrel 12, and then is discharged through the through hole opened above the limiting barrel 12. During this process, the wastewater will contact and react with the flocculant in the material barrel 13 to form flocs, and in the process of moving downward, the flocs will be intercepted by the first filter screen 10, and some of the flocs will be discharged through the through hole opened above the limiting barrel 12, but the discharged flocs will not immediately contact the first filter screen 10. The discharged flocs will be blocked by the baffle 11 during the upward movement to prevent the flocs from floating directly upward and contacting the first filter screen 10. It should be noted that it takes a certain amount of time for floccules to agglomerate. Floccules that have just undergone flocculation are smaller floccules. If they are not blocked, the floccules will pass through the first filter screen 10 and move to the top of the first filter screen 10, which will cause the first filter screen 10 to have no interception effect, resulting in floccules in the water above the first filter screen 10, making the interception method through the first filter screen 10 ineffective. As the floccules increase, some floccules will move between two adjacent baffles 11 and pass through the gap between the baffles 11 and the first filter screen 10. However, since the first filter screen 10 is set in a downwardly inclined conical structure, that is, during this process, the floccules will move to both sides along the first filter screen 10, away from the gap between the two baffles 11. It should be noted thatDuring the downward movement of the first filter screen 10, the baffle 11, the limiting cylinder 12 and the material cylinder 13, water flows through the gaps between the five baffles 11, that is, during this process, the driving force of the water at this place will also increase, and the floccules will be driven by the water, causing the floccules to pass through the first filter screen 10. Since the first filter screen 10 is arranged in a downwardly inclined conical structure, the floccules will accumulate in large quantities at the baffle 11 blocking the first filter screen 10 above. The driving force of the water on the floccules at this place is small, and the downward movement speed of the first filter screen 10 is slow, that is, during the downward movement of the first filter screen 10, the problem of the floccules passing through the first filter screen 10 is further reduced, so that the floccules can move smoothly into the waste barrel 1. When the first filter screen 10 contacts the waste barrel 1, the first filter screen 10 is blocked by the waste barrel 1 and stops moving downward. After standing for a period of time, the staff uses an external pumping equipment The water in the water storage barrel 2 above the first filter 10 is extracted. In this process, double interception is performed through the first filter 10 and the built-in interception structure on the pumping equipment to further reduce the flocculants being sucked away, that is, the wastewater separation work is completed in the above manner. After the separation work is completed, the staff removes the waste barrel 1 from the water storage barrel 2, and then cleans the flocculants on the waste barrel 1, the first filter 10, the baffle 11, the limit cylinder 12 and the material cylinder 13. After the cleaning is completed, the staff re-adds flocculants to the material cylinder 13, and then assembles the waste barrel 1 and the water storage barrel 2. Then the staff inserts the pin 5 into the output shaft of the motor 4 and the rotating roller 6, controls the motor 4 to drive the rotating roller 6 to rotate, and the rotating roller 6 drives the winding roller 7 to rotate the winding rope 8, that is, the first filter 10, the baffle 11, the limit cylinder 12 and the material cylinder 13 are driven by the rope 8 to move upward and reset, and the next round of wastewater treatment work is carried out. Example

[0024] On the basis of Example 1, Figure 5-Figure 6 As shown, an interception component is also included, which includes a first electric push rod 101, a first connecting plate 102, a connecting frame 103 and a second filter 104; four first electric push rods 101 distributed in a rectangular shape are fixedly connected to the water storage barrel 2; a first connecting plate 102 is fixedly connected to the telescopic end of each first electric push rod 101; two first connecting plates 102 on the same side are commonly fixedly connected to the second filter 104, all the second filters 104 are slidably connected to the water storage barrel 2, and all the second filters 104 are in contact with the first filter 10.

[0025] The filter holes of the second filter screen 104 are smaller than those of the first filter screen 10 , and are used to intercept larger particulate impurities in the wastewater to prevent the particulate impurities from being intercepted and attached to the upper surface of the first filter screen 10 .

[0026] The second filter screen 104 is arranged in an inclined structure to guide the particle impurities and prevent the second filter screen 104 from being blocked and affecting the water delivery speed.

[0027] The specific working contents of the present invention are as follows: In the process of using the external water delivery equipment to pass wastewater into the waste bucket 1 and the water storage bucket 2, the staff first controls the four first electric push rods 101 to contract and drive the four first connecting plates 102 to move toward each other, and the first connecting plates 102 drive the two connecting frames 103 to move toward each other, so that the two connecting frames 103 are spliced ​​together, that is, in the process of the water delivery equipment passing wastewater into the waste bucket 1 and the water storage bucket 2, the larger particle impurities of the wastewater are intercepted by the two second filter screens 104 to prevent the impurities in the wastewater from being intercepted by the first filter screen 10 thereon and affecting the subsequent wastewater treatment process. After stopping the water delivery, the four first electric push rods 101 are controlled to push the four first connecting plates 102 to move away from each other, and the first connecting plates 102 drive the two connecting frames 103 to move away from each other. In the process of wastewater treatment, the staff uses tools to clean the impurities intercepted on the second filter screen 104. Example

[0028] On the basis of Example 2, Figure 5-Figure 6 As shown, a blocking component is also included, which includes a second electric push rod 201, a second connecting plate 202, an isolation plate 203 and a connecting pipe 204; four second electric push rods 201 distributed in a rectangular shape are fixedly connected to the water storage barrel 2; a second connecting plate 202 is fixedly connected to the telescopic end of each second electric push rod 201; two second connecting plates 202 on the same side are commonly fixedly connected to the isolation plate 203; six equidistantly distributed connecting pipes 204 are passed through each isolation plate 203; each isolation plate 203 is provided with forty-eight rectangular array nozzles 20301, and the nozzles 20301 are connected to the corresponding connecting pipes 204.

[0029] The outer surface of the isolation plate 203 is covered with a rubber sleeve to enhance the sealing effect of the connection between the isolation plate 203 and the waste barrel 1 .

[0030] Sponge rods are provided in the connecting pipe 204 and the nozzle 20301 for filtering the impurities remaining in the water storage barrel 2.

[0031] The specific working contents of the present invention are as follows: When the first filter screen 10 contacts the waste barrel 1, the four second electric push rods 201 are controlled to contract and drive the four second connecting plates 202 to move toward each other. The second connecting plates 202 drive the two isolation plates 203 to move toward each other, so that the two isolation plates 203 are spliced ​​together. At this time, the two isolation plates 203 are located directly above the first filter screen 10. Then the staff uses an external pumping device to connect with the connecting pipe 204, and then controls the external pumping device to extract the treated wastewater in the water storage barrel 2 through the nozzle 20301 and the connecting pipe 204. During the pumping process, due to the connecting pipe 204 and the nozzle 20301 Each of them is provided with a sponge rod, that is, during the process of pumping water, the remaining impurities in the water are filtered out by the sponge rod. At the same time, during the process of pumping water, the flocculants precipitated in the isolation plate 203 are blocked by the isolation plate 203 to prevent the flocculants from being stirred by the water flow during the pumping process. After the pumping work is completed, the four second electric push rods 201 are controlled to push the four second connecting plates 202 to move apart, and the second connecting plates 202 drive the two isolation plates 203 to move apart. In this process, the granular impurities remaining on the isolation plate 203 are scraped off by the water storage barrel 2 and fall on the first filter screen 10, which is convenient for the staff to clean up together later.

[0032] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principle of the present invention. These improvements and modifications should also be regarded as the scope of protection of the present invention.

Claims

1. A flame retardant polyimide preparation wastewater treatment device, comprising a waste barrel (1) and a water storage barrel (2); the waste barrel (1) is connected to the water storage barrel (2); the characteristics are: The invention also comprises a bearing seat (3), a motor (4), a latch (5), a rotating roller (6), a winding roller (7), a pull rope (8), a conveying wheel (9), a first filter screen (10), a baffle (11), a limiting cylinder (12) and a material cylinder (13); a plurality of bearing seats (3) are fixedly connected to the water storage barrel (2); a plurality of bearing seats (3) located on the right side are bolted to the motor (4); a rotating roller (6) is inserted through the plurality of bearing seats (3) at the front, and another rotating roller (6) is inserted through the plurality of bearing seats (3) at the rear; the output shaft of each motor (4) is connected to the corresponding rotating roller (6); a latch (5) is inserted into each rotating roller (6), and each latch (5) is connected to the corresponding motor (4). ); each rotating roller (6) is fixedly connected to a plurality of winding rollers (7), and each winding roller (7) is located in a corresponding bearing seat (3); each winding roller (7) is wound with a pull rope (8); a plurality of conveying wheels (9) are rotatably connected to the water storage barrel (2); all the pull ropes (8) pass through the corresponding conveying wheels (9) and are fixedly connected to a first filter screen (10), and the first filter screen (10) is in contact with the water storage barrel (2); a plurality of baffles (11) are fixedly connected to the first filter screen (10); each baffle (11) is fixedly connected to a limiting cylinder (12), and each limiting cylinder (12) is provided with a plurality of through holes distributed at equal intervals; a material cylinder (13) is passed through each limiting cylinder (12); It also includes an interception assembly, which includes a first electric push rod (101), a first connecting plate (102), a connecting frame (103) and a second filter (104); a plurality of first electric push rods (101) are fixedly connected to the water storage barrel (2); a first connecting plate (102) is fixedly connected to the telescopic end of each first electric push rod (101); a plurality of first connecting plates (102) on the same side are commonly fixedly connected to the second filter (104), all the second filter screens (104) are slidably connected to the water storage barrel (2), and all the second filter screens (104) are in contact with the first filter screen (10); The device also comprises a blocking component, which comprises a second electric push rod (201), a second connecting plate (202), an isolation plate (203) and a connecting pipe (204); a plurality of second electric push rods (201) are fixedly connected to the water storage barrel (2); a second connecting plate (202) is fixedly connected to the telescopic end of each second electric push rod (201); a plurality of second connecting plates (202) on the same side are fixedly connected to the isolation plate (203); a plurality of connecting pipes (204) are passed through each isolation plate (203); a plurality of nozzles (20301) are opened on each isolation plate (203), and the nozzles (20301) are connected to corresponding connecting pipes (204); First, a flocculant is placed in a material barrel (13), and then wastewater generated during the preparation of flame-retardant polyimide is passed into a waste barrel (1) and a water storage barrel (2) using an external water supply device until the water level is flush with the first filter screen (10). Since the flocculant in the material barrel (13) is located in the wastewater, suspended particulate impurities in the wastewater are aggregated, and the formed floccules are concentrated in large quantities inside and outside the limiting barrel (12). Then, the staff pulls out the latch (5), so that the motor (4) and the rotating roller (6) are converted into the rotating roller (6). The motor (4) is connected to the reel (7) by a rotating mechanism, that is, the reel (7) loses the limit of the motor (4). As a large amount of floccules accumulate on the limit cylinder (12), the weight of the floccules on the limit cylinder (12) gradually increases, and the motor (4) and the rotating roller (6) are converted into a rotating connection. In this process, the limit cylinder (12) drives the first filter screen (10), the baffle (11) and the material cylinder (13) to move downward in the water storage barrel (2), and pulls the pull rope (8), so that the reel (7) rotates with the rotating roller (6) as the rotation center. During the unwinding operation, during the downward movement, wastewater enters the limiting cylinder (12) through the through hole below the limiting cylinder (12), and then is discharged through the through hole opened above the limiting cylinder (12). During this process, the wastewater contacts and reacts with the flocculant in the material cylinder (13) to form flocs, and during the downward movement, the flocs are intercepted by the first filter screen (10), and part of the flocs are discharged through the through hole opened above the limiting cylinder (12), but the discharged flocs will not immediately contact the first filter screen (10). The discharged floccules are blocked by the baffle (11) during the upward movement. When the first filter screen (10) contacts the waste bucket (1), the first filter screen (10) is blocked by the waste bucket (1) and stops moving downward. After standing for a period of time, the staff uses an external pumping device to extract the water in the water storage bucket (2) above the first filter screen (10). In this process, double interception is performed by the first filter screen (10) and the built-in interception structure on the pumping device, further reducing the floccules from being sucked away; In the process of using the external water delivery device to pass wastewater into the waste bucket (1) and the water storage bucket (2), the staff first controls the four first electric push rods (101) to contract and drive the four first connecting plates (102) to move towards each other, and the first connecting plates (102) drive the two connecting frames (103) to move towards each other, so that the two connecting frames (103) are spliced ​​together, that is, in the process of the water delivery device passing wastewater into the waste bucket (1) and the water storage bucket (2), larger particle impurities in the wastewater are intercepted by the two second filter screens (104); When the first filter screen (10) contacts the waste barrel (1), the four second electric push rods (201) are controlled to contract to drive the four second connecting plates (202) to move toward each other, and the second connecting plates (202) drive the two isolation plates (203) to move toward each other, so that the two isolation plates (203) are spliced ​​together. At this time, the two isolation plates (203) are located directly above the first filter screen (10). Then, the staff uses an external pumping device to connect with the connecting pipe (204), and then controls the external pumping device to pass through the nozzle (20301). and connecting pipes (204) to extract the treated wastewater in the water storage barrel (2); during the water extraction process, the precipitated flocculants are blocked by the isolation plate (203); after the water extraction work is completed, the four second electric push rods (201) are controlled to push the four second connecting plates (202) to move apart; the second connecting plates (202) drive the two isolation plates (203) to move apart; during this process, the granular impurities remaining on the isolation plates (203) are scraped off by the water storage barrel (2) and fall onto the first filter screen (10); The outer surface of the isolation plate (203) is covered with a rubber sleeve; Sponge rods are provided in both the connecting pipe (204) and the nozzle (20301).

2. The flame retardant polyimide preparation wastewater treatment equipment according to claim 1, characterized in that: The frame parts of the first filter screen (10), the baffle (11), the limiting cylinder (12) and the material cylinder (13) are made of a plastic material having a density lower than that of water.

3. The flame retardant polyimide preparation wastewater treatment equipment according to claim 1, characterized in that: A damping type rotation connection is provided between the rotating roller (6) and the bearing seat (3).

4. A flame retardant polyimide preparation wastewater treatment equipment according to any one of claims 1 to 3, characterized in that: The first filter screen (10) is provided in a downwardly inclined conical structure.

5. The flame retardant polyimide preparation wastewater treatment equipment according to claim 1, characterized in that: The filter holes of the second filter screen (104) are smaller than those of the first filter screen (10).

6. The flame retardant polyimide preparation wastewater treatment equipment according to claim 1, characterized in that: The second filter screen (104) is arranged in an inclined structure.

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