Sewage treatment equipment for polyimide resin preparation

Abstract

The invention provides sewage treatment equipment for polyimide resin preparation, and relates to the technical field of sewage treatment equipment. A supporting seat is fixed on the sewage treatment box, the supporting seat is placed on the ground, a cover plate is fixed at the top of the sewage treatment box, a pipeline for sewage filling is welded on the cover plate, a filter plate is fixed in the sewage treatment box, and filter holes are formed in the filter plate at equal intervals; a first mixing mechanism is mounted on the sewage treatment tank. In a mixing treatment link, the equipment realizes efficient fusion of sewage and a decomposing agent through a multi-stage mixing mechanism; in the first mixing mechanism, a first electric cylinder drives a mixing plate to move back and forth in a reciprocating manner, and mixing holes in the mixing plate form jet flow, so that liquid disturbance is enhanced; meanwhile, the spray pipe synchronously moves along with the mixing plate, and the sewage pumped by the water pump is sprayed out through the spray holes, so that movable liquid spraying mixing is formed, the filtering holes can be precisely flushed to realize blockage clearing, and the influence on the treatment efficiency caused by blockage of the filtering assembly is avoided.

Description

Technical Field

[0001] This invention relates to the field of wastewater treatment equipment technology, and in particular to a wastewater treatment equipment for preparing polyimide resin. Background Technology

[0002] Polyimide resin is a high-performance polymer material with excellent heat resistance, chemical corrosion resistance, mechanical properties and electrical insulation. The preparation of polyimide resin generates wastewater, which needs to be treated by wastewater treatment equipment. In this process, decomposition agents are often used for decomposition.

[0003] Although the existing device has a jet mixing structure, it cannot achieve both jet mixing and blockage clearing, resulting in poor structural compatibility. Although the existing device can drive the impeller for mixing via a motor, it cannot provide emergency drive via jet when the motor circuit fails, thus limiting its practicality. Summary of the Invention

[0004] This invention relates to a wastewater treatment device for the preparation of polyimide resin, which solves the problems of existing devices having a jet mixing structure but being unable to achieve both jet mixing and unclogging, resulting in poor structural compatibility; and existing devices being able to drive the impeller for mixing via a motor but being unable to provide emergency drive via jet when the motor circuit fails, resulting in low practicality.

[0005] This invention provides a wastewater treatment device for polyimide resin preparation, specifically comprising: a wastewater treatment tank; a support base fixed on the wastewater treatment tank, the support base being placed on the ground, a cover plate fixed on the top of the wastewater treatment tank, a pipe for wastewater filling welded onto the cover plate, a filter plate fixed inside the wastewater treatment tank, and filter holes evenly spaced on the filter plate; a first mixing mechanism installed on the wastewater treatment tank, the first mixing mechanism including guide rods symmetrically sliding on the wastewater treatment tank, the front end of each guide rod being welded to the mixing plate, a first electric cylinder fixed on the rear end face of the wastewater treatment tank, the extended end of the first electric cylinder being fixed to the mixing plate, mounting rods symmetrically welded to the top surface of the mixing plate, the upper end of each mounting rod being welded to a spray pipe, the spray pipe being a cylindrical tubular structure, spray holes arranged in a ring array on the outer wall of the spray pipe, the upper position of the outer wall of the spray pipe contacting the bottom end face of the filter plate, the spray holes being aligned with the filter holes, a water pump fixed on the rear end face of the wastewater treatment tank, a suction pipe and a first discharge pipe connected to the water pump, the suction pipe being connected to the wastewater treatment tank, and the first discharge pipe being connected to the spray pipe.

[0006] Preferably, the mixing plate is a rectangular plate structure, and mixing holes are equidistantly opened on the mixing plate.

[0007] Preferably, a second mixing mechanism is installed on the sewage treatment tank. The second mixing mechanism includes a rotating shaft that rotates on the sewage treatment tank, impellers that are equidistantly installed on the rotating shaft, a motor that is fixed on the sewage treatment tank, and the output shaft of the motor that is fixed on the rotating shaft.

[0008] Preferably, a cylindrical block is welded onto the rotating shaft, and the outer wall of the cylindrical block has grooves of a semi-cylindrical groove structure at equal intervals; a second drain pipe is connected to the water pump, a first valve is installed on the second drain pipe, the second drain pipe is connected to the sewage treatment tank, and the second drain pipe is aligned with the upper half of the cylindrical block.

[0009] Preferably, the sewage treatment tank is equipped with a cleaning mechanism, which includes a cleaning block that slides on the inner wall of the sewage treatment tank. The bottom end of the cleaning block contacts the top end of the filter plate. A connecting rod is symmetrically welded to the front end of the cleaning block. One end of the connecting rod is symmetrically welded to a sealing block. The sealing block is engaged with the slag discharge hole on the sewage treatment tank. A second hydraulic cylinder is fixed to the rear end of the sewage treatment tank. The protruding end of the second hydraulic cylinder passes through the sewage treatment tank and is fixed to the cleaning block.

[0010] Preferably, the sewage treatment tank is equipped with a discharge mechanism, which includes a discharge pipe that slides on the sewage treatment tank, a second valve installed on the discharge pipe, discharge holes that are equidistantly opened on the outer wall of the discharge pipe, and the outer wall of the discharge pipe contacting the inner wall below the sewage treatment tank.

[0011] Preferably, a second electric cylinder is symmetrically fixed on the sewage treatment tank, and the extended end of the second electric cylinder is fixed on the discharge pipe. When the second electric cylinder extends, the discharge hole is hidden under the sewage treatment tank, and the discharge hole is in a sealed state.

[0012] Preferably, the wastewater treatment tank is welded with an addition pipe, the addition pipe is welded with a funnel, and the addition pipe has addition holes equidistantly opened on the outer wall of the part of the wastewater treatment tank inside the addition pipe.

[0013] Preferably, the sewage treatment tank is welded with a base of a U-shape, and a first hydraulic cylinder is symmetrically welded to the upper end of the base, with the extended end of the first hydraulic cylinder fixed to the cover plate.

[0014] This invention provides a wastewater treatment device for the preparation of polyimide resin, which has the following beneficial effects: In the mixing treatment stage, this application utilizes a multi-stage mixing mechanism to achieve efficient fusion of wastewater and decomposing agent. In the first mixing mechanism, a first electric cylinder drives a mixing plate to move back and forth, and the mixing holes on the mixing plate form jets, enhancing liquid turbulence. Simultaneously, the nozzle moves synchronously with the mixing plate, and the wastewater pumped by the water pump is sprayed out through the nozzles, forming a moving spray mixing and precisely flushing the filter holes to clear blockages, preventing filter clogging from affecting treatment efficiency. The second mixing mechanism uses a motor to drive the rotating shaft and impeller to rotate at high speed, further enhancing liquid convection and working synergistically with the first mixing mechanism to significantly improve mixing uniformity, ensuring that the decomposing agent fully functions and improving wastewater treatment effect.

[0015] This application has a reliable emergency protection mechanism to effectively deal with sudden failures. When the motor of the second mixing mechanism suffers circuit damage, the water pump and the first valve are turned on. The liquid sprayed from the second drain pipe impacts the groove of the cylindrical block, and the rotating shaft and impeller are driven by the liquid power to rotate in an emergency, so as to ensure that the mixing process is not interrupted, avoid the stagnation of sewage treatment due to equipment shutdown, and ensure production continuity.

[0016] The cleaning and maintenance design of the filtration system in this application significantly improves the durability of the equipment. In the cleaning mechanism, the second hydraulic cylinder pushes the cleaning block to slide along the surface of the filter plate, which can quickly remove the residue accumulated on the filter plate and discharge it through the slag discharge hole. Combined with the unclogging function of the spray pipe, it doubles the protection of the filter holes, reduces the frequency of manual cleaning, and lowers maintenance costs. In addition, the first hydraulic cylinder on the U-shaped base can drive the cover plate to automatically lift and lower, realizing the quick opening of the sewage treatment tank, which facilitates the inspection and maintenance of internal components without manual operation, thus improving the automation level of the equipment.

[0017] In terms of ease of operation and processing accuracy, this application features ingenious equipment design details. The addition pipe adopts a porous distribution structure, and after the decomposing agent is added through the funnel, it is evenly dispersed into the wastewater through the equally spaced addition holes, avoiding excessively high local concentrations that could affect the reaction effect. In the discharge mechanism, the second electric cylinder can control the position of the discharge pipe, and the wastewater discharge or emergency sealing can be achieved by adjusting the exposure state of the discharge hole, flexibly adapting to the needs of different treatment stages and improving operational flexibility.

[0018] Overall, through its multi-stage mixing enhancement, intelligent unblocking and slag removal, emergency support, and automated operation design, this equipment not only significantly improves the efficiency and effectiveness of wastewater treatment during the polyimide resin preparation process, but also reduces the cost of manual intervention and enhances the stability and safety of equipment operation, providing an efficient and reliable solution for industrial wastewater treatment. Attached Figure Description

[0019] To more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings of the embodiments will be briefly described below.

[0020] The accompanying drawings described below are only related to some embodiments of the invention and are not intended to limit the invention.

[0021] In the attached diagram: Figure 1 A perspective view of the wastewater treatment equipment for the preparation of polyimide resin according to the present invention is shown; Figure 2 The present invention is shown. Figure 1 Rotated 3D image; Figure 3 This is a partially cut-open perspective view of the wastewater treatment equipment for preparing polyimide resin according to the present invention; Figure 4 The present invention is shown. Figure 3 Enlarged view of point A; Figure 5 The present invention is shown. Figure 3 Rotated 3D image; Figure 6 A perspective view of the first mixing mechanism of the present invention is shown; Figure 7 A perspective view of the cleaning mechanism of the present invention is shown; Figure 8 A perspective view of the emission mechanism of the present invention is shown.

[0022] List of reference numerals 1. Wastewater treatment tank; 101. Support base; 102. Cover plate; 103. Base; 104. First hydraulic cylinder; 105. Addition pipe; 106. Funnel; 107. Addition hole; 2. Filter plate; 201. Filter hole; 3. First mixing mechanism; 301. Guide rod; 302. Mixing plate; 303. Mixing hole; 304. Mounting rod; 305. Spray pipe; 306. Spray hole; 307. First electric cylinder; 308. Water pump; 309. Liquid extraction pipe; 310. First drain pipe; 311. Second drain pipe; 312. First valve; 4. Second mixing mechanism; 401. Rotating shaft; 402. Impeller; 403. Motor; 404. Cylindrical block; 405. Groove; 5. Discharge mechanism; 501. Discharge pipe; 502. Second valve; 503. Discharge hole; 504. Second electric cylinder; 6. Cleaning mechanism; 601. Cleaning block; 602. Connecting rod; 603. Sealing block; 604. Second hydraulic cylinder. Detailed Implementation

[0023] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, 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, not all, of the embodiments of the present invention. Based on the described 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.

[0024] Example 1: Please refer to Figures 1 to 8 : This invention proposes a wastewater treatment device for polyimide resin preparation, comprising: a wastewater treatment tank 1; a support base 101 fixed on the wastewater treatment tank 1, the support base 101 being placed on the ground; a cover plate 102 fixed on the top of the wastewater treatment tank 1, with a pipe for wastewater filling welded onto the cover plate 102; a filter plate 2 fixed inside the wastewater treatment tank 1, with filter holes 201 evenly spaced on the filter plate 2; a first mixing mechanism 3 installed on the wastewater treatment tank 1, the first mixing mechanism 3 including guide rods 301 symmetrically sliding on the wastewater treatment tank 1, the front ends of the guide rods 301 being welded to the mixing plate 302; a first electric cylinder 307 fixed to the rear end face of the wastewater treatment tank 1, the extended end of the first electric cylinder 307 being fixed to the mixing plate 302; mounting rods 304 symmetrically welded to the top face of the mixing plate 302, the upper ends of the mounting rods 304 being welded to the nozzles 305, the nozzles 305 being cylindrical tubular structures, with annular arrays on the outer wall of the nozzles 305. A spray nozzle 306 is provided, and the upper part of the outer wall of the spray pipe 305 contacts the bottom end face of the filter plate 2. The spray nozzle 306 is aligned with the filter hole 201. A water pump 308 is fixed to the rear end face of the sewage treatment tank 1. A suction pipe 309 and a first discharge pipe 310 are connected to the water pump 308. The suction pipe 309 is connected to the sewage treatment tank 1, and the first discharge pipe 310 is connected to the spray pipe 305. When the sewage in the sewage treatment tank 1 is mixed with the decomposing agent, the first electric cylinder 307 is driven to reciprocate. The first electric cylinder 307 drives the mixing plate 302 to move back and forth to mix the sewage and the decomposing agent. The nozzle 305 moves back and forth with the mixing plate 302. At the same time, the water pump 308 is started. The water pump 308 draws out the sewage in the sewage treatment tank 1 and sprays it out through the nozzle 306. The liquid sprayed out of the nozzle 306 can realize the moving spray mixing of the liquid in the sewage treatment tank 1, and the liquid sprayed out of the nozzle 306 can also clear the blockage of the filter hole 201.

[0025] The mixing plate 302 is a rectangular plate structure, and mixing holes 303 are equidistantly opened on the mixing plate 302. When the mixing plate 302 moves back and forth, the jet at the mixing hole 303 can improve the mixing effect of sewage and decomposition agent in sewage treatment tank 1.

[0026] The wastewater treatment tank 1 is equipped with a second mixing mechanism 4. The second mixing mechanism 4 includes a rotating shaft 401 that rotates on the wastewater treatment tank 1. Impellers 402 are equidistantly mounted on the rotating shaft 401. A motor 403 is fixed on the wastewater treatment tank 1. The output shaft of the motor 403 is fixed on the rotating shaft 401. During mixing, the motor 403 is started, and the motor 403 drives the rotating shaft 401 and the impellers 402 to rotate. The stirring of the impellers 402 can further improve the mixing effect of wastewater and decomposition agent.

[0027] The rotating shaft 401 is welded with a cylindrical block 404, and the outer wall of the cylindrical block 404 is provided with grooves 405 of semi-cylindrical groove structure at equal intervals. The water pump 308 is connected to a second drain pipe 311, and a first valve 312 is installed on the second drain pipe 311. The second drain pipe 311 is connected to the sewage treatment tank 1 and is aligned with the upper half of the cylindrical block 404. When the circuit of the motor 403 is damaged and cannot rotate, the water pump 308 is started and the first valve 312 is opened. The liquid sprayed from the second drain pipe 311 comes into contact with the cylindrical block 404 and the grooves 405. Driven by the liquid, the rotating shaft 401 and the impeller 402 can be rotated in an emergency, thus realizing emergency mixing.

[0028] The wastewater treatment tank 1 is equipped with a cleaning mechanism 6, which includes a cleaning block 601 that slides on the inner wall of the wastewater treatment tank 1. The bottom surface of the cleaning block 601 contacts the top surface of the filter plate 2. A connecting rod 602 is symmetrically welded to the front surface of the cleaning block 601. One end of the connecting rod 602 is symmetrically welded to a sealing block 603. The sealing block 603 is engaged with the slag discharge hole on the wastewater treatment tank 1. A second hydraulic cylinder 604 is fixed to the rear end of the wastewater treatment tank 1. The extended end of the second hydraulic cylinder 604 passes through the wastewater treatment tank 1 and is fixed to the cleaning block 601. When cleaning the residue on the filter plate 2, the second hydraulic cylinder 604 is driven to extend. The second hydraulic cylinder 604 drives the cleaning block 601, the connecting rod 602 and the sealing block 603 to move forward. At this time, the residue on the filter plate 2 can be discharged through the slag discharge hole on the wastewater treatment tank 1 through the cleaning block 601.

[0029] The sewage treatment tank 1 is equipped with a discharge mechanism 5, which includes a discharge pipe 501 that slides on the sewage treatment tank 1. A second valve 502 is installed on the discharge pipe 501. Discharge holes 503 are equidistantly opened on the outer wall of the discharge pipe 501. The outer wall of the discharge pipe 501 is in contact with the inner wall below the sewage treatment tank 1.

[0030] The sewage treatment tank 1 is symmetrically fixed with a second electric cylinder 504. The extended ends of the second electric cylinder 504 are all fixed to the discharge pipe 501. When the second electric cylinder 504 extends, the discharge hole 503 is hidden under the sewage treatment tank 1. At this time, the discharge hole 503 is in a sealed state. When an emergency seal is achieved, the second electric cylinder 504 is driven to extend. At this time, the discharge hole 503 is hidden under the sewage treatment tank 1, and the emergency seal is completed.

[0031] The wastewater treatment tank 1 is equipped with an addition pipe 105, and a funnel 106 is welded onto the addition pipe 105. The addition pipe 105 has addition holes 107 at equal intervals on the outer wall of the inner part of the wastewater treatment tank 1. When adding the decomposing agent into the wastewater treatment tank 1, the decomposing agent can be directly added into the funnel 106. The decomposing agent flows out through the addition holes 107 at equal intervals, which can better mix with the wastewater and improve the wastewater treatment effect.

[0032] Example 2, based on Example 1, such as Figures 1-8 As shown, a base 103 with a U-shaped structure is welded onto the sewage treatment tank 1. A first hydraulic cylinder 104 is symmetrically welded to the upper end of the base 103. The extended end of the first hydraulic cylinder 104 is fixed to the cover plate 102. When the cover plate 102 is opened, the first hydraulic cylinder 104 is driven to extend. The first hydraulic cylinder 104 drives the cover plate 102 to move upward, completing the automatic opening of the cover plate 102 without the need for manual opening by personnel, and the degree of automation is high.

[0033] The working principle of this embodiment is as follows: Sewage is added into the sewage treatment tank 1 through the sewage filling pipe on the cover plate 102. When the sewage comes into contact with the filter plate 2, impurities are filtered through the filter holes 201. The decomposing agent is added into the funnel 106, and the decomposing agent flows out through the equally spaced addition holes 107 and comes into contact with the sewage. The first electric cylinder 307 is driven to reciprocate, and the first electric cylinder 307 drives the mixing plate 302 to move back and forth to achieve mixing of sewage and decomposing agent. The nozzle 305 moves back and forth with the mixing plate 302. At the same time, the water pump 308 is started. The water pump 308 draws sewage out of the sewage treatment tank 1 and sprays it out through the nozzle 306. The liquid sprayed out of the nozzle 306 can achieve mobile spray mixing of liquid in the sewage treatment tank 1, and the liquid sprayed out of the nozzle 306 can also clear the blockage of the filter holes 201. The motor 403 is started. The motor 403 drives the shaft 401 and impeller 402 to rotate, and the impeller 402 agitates the mixture again. When the motor 403 cannot rotate due to circuit damage, the water pump 308 is started and the first valve 312 is opened. The liquid sprayed from the second drain pipe 311 comes into contact with the cylindrical block 404 and the groove 405. Driven by the liquid, the shaft 401 and impeller 402 can rotate in an emergency, thus achieving emergency mixing. When cleaning the residue on the filter plate 2, the second hydraulic cylinder 604 is driven to extend. The second hydraulic cylinder 604 drives the cleaning block 601, connecting rod 602 and sealing block 603 to move forward. At this time, the residue on the filter plate 2 can be discharged through the slag discharge hole on the sewage treatment tank 1 through the cleaning block 601. The second electric cylinder 504 is driven to extend. At this time, the discharge hole 503 is hidden under the sewage treatment tank 1 to complete the emergency sealing.

Claims

1. A wastewater treatment device for the preparation of polyimide resin, characterized in that, include: Wastewater treatment tank (1); a support base (101) is fixed on the wastewater treatment tank (1), the support base (101) is placed on the ground, a cover plate (102) is fixed on the top of the wastewater treatment tank (1), a pipe for wastewater filling is welded on the cover plate (102), a filter plate (2) is fixed inside the wastewater treatment tank (1), and filter holes (201) are equidistantly opened on the filter plate (2); a first mixing mechanism (3) is installed on the wastewater treatment tank (1), the first mixing mechanism (3) includes guide rods (301) that slide symmetrically on the wastewater treatment tank (1), one end of the front side of the guide rods (301) is welded to the mixing plate (302), a first electric cylinder (307) is fixed on the rear end face of the wastewater treatment tank (1), and the extension of the first electric cylinder (307) The outlet is fixed on the mixing plate (302). The top surface of the mixing plate (302) is symmetrically welded with the mounting rod (304). The upper end of the mounting rod (304) is welded to the nozzle (305). The nozzle (305) is a cylindrical tubular structure. The outer wall of the nozzle (305) is provided with spray holes (306) in a ring array. The upper position of the outer wall of the nozzle (305) is in contact with the bottom end face of the filter plate (2). The spray holes (306) are aligned with the filter holes (201). The rear end face of the sewage treatment tank (1) is fixed with a water pump (308). The water pump (308) is connected with a suction pipe (309) and a first drain pipe (310). The suction pipe (309) is connected to the sewage treatment tank (1), and the first drain pipe (310) is connected to the nozzle (305).

2. The wastewater treatment equipment for polyimide resin preparation according to claim 1, characterized in that, The mixing plate (302) is a rectangular plate structure, and mixing holes (303) are equally spaced on the mixing plate (302).

3. The wastewater treatment equipment for polyimide resin preparation according to claim 1, characterized in that, The sewage treatment tank (1) is equipped with a second mixing mechanism (4), which includes a rotating shaft (401) that rotates on the sewage treatment tank (1), impellers (402) that are equidistantly mounted on the rotating shaft (401), and a motor (403) that is fixed on the sewage treatment tank (1). The output shaft of the motor (403) is fixed on the rotating shaft (401).

4. The wastewater treatment equipment for polyimide resin preparation according to claim 3, characterized in that, A cylindrical block (404) is welded onto the rotating shaft (401). The outer wall of the cylindrical block (404) is provided with grooves (405) of a semi-cylindrical groove structure at equal intervals. A second drain pipe (311) is connected to the water pump (308). A first valve (312) is installed on the second drain pipe (311). The second drain pipe (311) is connected to the sewage treatment tank (1). The second drain pipe (311) is aligned with the upper part of the cylindrical block (404).

5. The wastewater treatment equipment for polyimide resin preparation according to claim 1, characterized in that, The sewage treatment tank (1) is equipped with a cleaning mechanism (6). The cleaning mechanism (6) includes a cleaning block (601) that slides on the inner wall of the sewage treatment tank (1). The bottom surface of the cleaning block (601) is in contact with the top surface of the filter plate (2). A connecting rod (602) is symmetrically welded to the front surface of the cleaning block (601). One end of the front side of the connecting rod (602) is symmetrically welded to the sealing block (603). The sealing block (603) is snapped into the slag discharge hole on the sewage treatment tank (1). A second hydraulic cylinder (604) is fixed to the rear end of the sewage treatment tank (1). The protruding end of the second hydraulic cylinder (604) passes through the sewage treatment tank (1). The protruding end of the second hydraulic cylinder (604) is fixed to the cleaning block (601).

6. The wastewater treatment equipment for polyimide resin preparation according to claim 1, characterized in that, The sewage treatment tank (1) is equipped with a discharge mechanism (5), which includes a discharge pipe (501) that slides on the sewage treatment tank (1), a second valve (502) is installed on the discharge pipe (501), and discharge holes (503) are equidistantly opened on the outer wall of the discharge pipe (501). The outer wall of the discharge pipe (501) is in contact with the inner wall below the sewage treatment tank (1).

7. The wastewater treatment equipment for polyimide resin preparation according to claim 1, characterized in that, The sewage treatment tank (1) is symmetrically fixed with a second electric cylinder (504). The extended ends of the second electric cylinder (504) are all fixed on the discharge pipe (501). When the second electric cylinder (504) extends, the discharge hole (503) is hidden below the sewage treatment tank (1). At this time, the discharge hole (503) is in a sealed state.

8. The wastewater treatment equipment for polyimide resin preparation according to claim 1, characterized in that, The wastewater treatment tank (1) is welded with an addition pipe (105), and a funnel (106) is welded to the addition pipe (105). The addition pipe (105) has addition holes (107) equidistantly opened on the outer wall of the part inside the wastewater treatment tank (1).

9. The wastewater treatment equipment for polyimide resin preparation according to claim 1, characterized in that, The sewage treatment tank (1) is welded with a base (103) of a U-shape structure. A first hydraulic cylinder (104) is symmetrically welded to the upper end of the base (103). The extended end of the first hydraulic cylinder (104) is fixed on the cover plate (102).

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