Cleaning wastewater treatment system and process for pilot scale production of chemical synthetic bulk drugs

Abstract

The invention discloses a chemical synthetic bulk drug pilot scale production cleaning wastewater treatment system, and relates to the technical field of wastewater treatment.The chemical synthetic bulk drug pilot scale production cleaning wastewater treatment system comprises a feeding cylinder, one end of the feeding cylinder is fixedly connected with the inner wall, away from the opening end of the feeding cylinder, of a treatment box, and multiple water inlet pipes are fixedly installed on the two sides of the feeding cylinder in the vertical direction; according to the device, by pressing down the adjusting frame, the small end of each trapezoidal block is attached to one end of a jacking column, the sealing plate is pushed to move, then a neutralizer is added into the feeding barrel through the feeding pipe, after wastewater is guided into the treatment box, the sealing plate is pushed to enable the multiple trapezoidal blocks to move upwards, and the feeding barrel is pushed to move upwards; when one end of the jacking column is separated from the small end of the trapezoidal block, wastewater at the bottom layer, the middle layer and the upper layer of the treatment box can be fully mixed with a neutralizer, and when the wastewater at the upper layer is mixed with the wastewater at the bottom layer, the constant pH value in the wastewater cannot be changed, so that the situation that wastewater discharge does not meet the environmental protection standard is avoided, and negative effects on the environment are not easily caused.

Description

Technical Field

[0001] The invention relates to the technical field of wastewater treatment, and in particular to a system and process for treating cleaning wastewater from pilot production of chemical synthetic raw materials. Background Art

[0002] The trial production of raw materials is a key task. It provides important reference and basis for drug research and development. It can accurately implement the trial production plan, reasonably control the synthesis and purification process of raw materials, and conduct comprehensive drug testing and quality analysis. However, in the trial production of chemical synthetic drugs, the dissolution, soaking and container cleaning of drugs will generate a large amount of wastewater.

[0003] At present, the daily discharge of cleaning wastewater from pilot production of chemical synthetic APIs is small, the discharge cycle is irregular, the water quality is unstable, the pollutant factors fluctuate greatly, and the pollutant concentration is high; the components in the water are mainly organic matter, some varieties are antibiotics, which have certain toxicity and affect biological growth; there are many biodegradable substances in the water, and the biodegradability is low. The above wastewater characteristics are likely to cause a great impact on the microorganisms of the biochemical system in the wastewater treatment process.

[0004] At present, the existing traditional technology mainly adopts the "pretreatment (catalytic oxidation) + biochemical treatment" process. First, the high-concentration wastewater is catalytically oxidized through the pretreatment system to decompose the toxic and difficult-to-degrade substances in the water. Then, the microbial biochemical action of the biochemical system is used to further remove the pollutants in the water, so as to achieve the discharge of wastewater that meets the standards.

[0005] However, after the wastewater is catalytically oxidized, the pH value of the wastewater needs to be balanced (ensuring that the pH value of the wastewater is between 6.8 and 8.5, ensuring the activity of microorganisms in the wastewater, and thus improving the efficiency of wastewater treatment). By adjusting the pH value, the negative impact on the environment can be reduced and the wastewater discharge can be ensured to meet environmental protection standards. When adjusting the pH value of the wastewater, the wastewater is usually first introduced into the treatment tank, and then a neutralizer (lime, limestone, dolomite, soda, caustic soda, etc.) is added to the treatment tank. Then, the wastewater is continuously stirred by the stirring device in the treatment tank to fully mix the wastewater and the neutralizer. , ensuring that the measured pH value can represent the true situation of the entire solution, avoiding inaccurate measurement results caused by local pH being too high or too low. However, the existing stirring device can only stir the wastewater in the horizontal direction, so that the wastewater can only flow in the horizontal direction, resulting in uneven distribution of the neutralizer in the wastewater (the upper layer of the wastewater has more neutralizer, and the bottom layer of the wastewater has less neutralizer), resulting in the pH value of the bottom layer of wastewater being different from that of the upper layer of wastewater. When the upper layer of wastewater is mixed with the bottom layer of wastewater, the fixed pH value in the wastewater changes, which can easily lead to wastewater discharge not meeting environmental protection standards and easily causing negative impacts on the environment. Summary of the invention

[0006] The object of the present invention is to provide a system and process for treating cleaning wastewater from pilot production of chemical synthesis raw materials to solve the problems raised in the above-mentioned background technology.

[0007] In order to solve the above technical problems, the present invention provides the following technical solutions: a chemical synthesis API pilot production cleaning wastewater treatment system, comprising:

[0008] Processing box;

[0009] The feeding barrel has one end fixedly connected to the inner wall of the processing box away from its opening end, and multiple water inlet pipes are fixedly installed on both sides of the feeding barrel along the vertical direction, and a sealing plate is slidably installed on one end of the water inlet pipe away from the feeding barrel;

[0010] The adjusting frame is slidably mounted on the outside of the feeding barrel, a top pressure column is fixedly mounted on the end of the sealing plate away from the water inlet pipe, and a trapezoidal block for pressing the top pressure column is fixedly mounted along the vertical direction on the side of the adjusting frame close to the feeding barrel;

[0011] A sliding rod, one end of which is fixedly connected to the top of the adjustment frame, and the top of the sliding rod extends to the top of the processing box, and a hydraulic cylinder for moving the sliding rod is fixedly installed on the top of the processing box;

[0012] An air pump, one end of which is fixedly connected to the top edge of the processing box, and an air guide pipe is fixedly installed at the air outlet end of the air pump, and mounting holes adapted to the air guide pipe are provided at the top of the processing box and the top of the feeding barrel, and the end of the air guide pipe away from the air pump passes through the two mounting holes and extends into the inner cavity of the feeding barrel;

[0013] One end of the water outlet pipe is fixedly connected to the outer wall of the feeding barrel, and the water outlet pipe is located directly below the multiple water inlet pipes. A sealing plug is slidably installed on one end of the water outlet pipe away from the feeding barrel.

[0014] Preferably, through holes are provided on the top of the feeding barrel and the processing box, a feeding pipe is provided on the top of the processing box, the bottom of the feeding pipe passes through the two through holes and extends into the inner cavity of the feeding barrel, and a sealing member for sealing the bottom of the feeding pipe is provided in the inner cavity of the processing box.

[0015] Preferably, the adjustment frame is configured as a U-shaped structure, and the top of the adjustment frame is located directly above the feeding barrel. Guide grooves are provided on both sides of the adjustment frame along the vertical direction. A guide plate is slidably installed in the inner cavity of the guide groove, and one end of the guide plate is fixedly connected to the bottom of the inner cavity of the processing box.

[0016] Preferably, a push rod is slidably installed in the inner cavity of the water inlet pipe, one end of the push rod away from the inner cavity of the feeding barrel is fixedly connected to one end of the sealing plate, and the outer wall of the push rod is fixedly sleeved with an extrusion spring connected to the inner wall of the water inlet pipe.

[0017] Preferably, the sealing plate is configured as a truncated cone-shaped structure, and the small end of the sealing plate is fixedly connected to one end of the push rod.

[0018] Preferably, a push rod is fixedly mounted on one end of the sealing plug close to the water outlet pipe, and a return spring connected to the inner wall of the water outlet pipe is fixedly sleeved on the outer wall of the push rod.

[0019] Preferably, a plurality of stirring rods for stirring the wastewater are rotatably installed in a circular arrangement in the inner cavity of the treatment box, and a plurality of through holes are opened in a circular arrangement at the top edge of the treatment box. The tops of the plurality of stirring rods penetrate the plurality of through holes and extend to directly above the treatment box, and a driving motor for rotating the plurality of stirring rods is fixedly installed on the top of the treatment box.

[0020] Preferably, the sealing member comprises a baffle and a sliding rod, and through holes are provided at the top edges of the processing box and the feeding barrel, a sliding rod is slidably installed in the inner cavity of the feeding barrel, a sealing ring for sealing the through hole provided at the top of the feeding barrel is fixedly installed on the outer wall of the sliding rod, one side of the baffle is fixedly connected to the outer wall of the sliding rod, and the baffle is located directly below the feeding pipe, the top of the sliding rod passes through the two through holes and extends to directly above the processing box, and an electric telescopic rod for moving the sliding rod is fixedly installed at the top edge of the processing box.

[0021] A chemical synthesis API pilot production cleaning wastewater treatment process, using the above-mentioned chemical synthesis API pilot production cleaning wastewater treatment system, comprises the following steps:

[0022] By pressing down the adjusting frame until the small head end of the trapezoidal block fits with one end of the top pressure column, and pushing the sealing plate to move until one end of the sealing plate fits with one end of the water inlet pipe, and then adding neutralizer to the inside of the feeding barrel through the feeding pipe, after the wastewater is introduced into the treatment box, the sealing plate is pushed to move multiple trapezoidal blocks upward until one end of the top pressure column and the small head end of the trapezoidal block are separated, and the extrusion spring is quickly reset, so that the wastewater located in the bottom, middle and upper layers of the treatment box can be fully mixed with the neutralizer. When the upper layer wastewater is mixed with the bottom layer wastewater, the fixed pH value in the wastewater will not change, thereby avoiding the situation where the wastewater discharge does not meet the environmental protection standards and is not easy to cause negative impact on the environment.

[0023] Compared with the prior art, the present invention has the following beneficial effects:

[0024] In the present invention, the adjusting frame is pressed down until the small head end of the trapezoidal block fits with one end of the top pressure column, and the sealing plate is pushed to move until one end of the sealing plate fits with one end of the water inlet pipe, and then the neutralizer is added to the inside of the feeding tube through the feeding pipe. After the wastewater is introduced into the treatment box, the sealing plate is pushed to move the multiple trapezoidal blocks upward. When one end of the top pressure column is separated from the small head end of the trapezoidal block, the extrusion spring is quickly reset, so that the wastewater located in the bottom, middle and upper layers of the treatment box can be fully mixed with the neutralizer. When the upper layer wastewater is mixed with the bottom layer wastewater, the fixed pH value in the wastewater will not change, thereby avoiding the situation where the wastewater discharge does not meet the environmental protection standards and is not prone to negative impact on the environment. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 A perspective view of the present invention;

[0026] Figure 2 is a cross-sectional view of the processing box and the feed pipe of the present invention;

[0027] Figure 3 It is an assembly diagram of the sealing plate and the water inlet pipe of the present invention;

[0028] Figure 4 For the present invention Figure 2 A magnified view of the structure at center A;

[0029] Figure 5 For the present invention Figure 2 A magnified view of the structure at B in the middle;

[0030] Figure 6 For the present invention Figure 2 Enlarged view of the structure at C in the middle.

[0031] In the figure: 1. treatment box; 2. air guide tube; 3. slide rod; 4. feed pipe; 5. adjustment frame; 6. trapezoidal block; 7. sealing plate; 8. feed barrel; 9. stirring rod; 10. sealing ring; 11. baffle; 12. water outlet pipe; 13. push rod; 14. sealing plug; 15. pressure column; 16. push rod; 17. water inlet pipe; 18. extrusion spring; 19. guide groove; 20. guide plate; 21. sliding rod. DETAILED DESCRIPTION

[0032] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0033] Example 1

[0034] See also Figure 1-6 ,include:

[0035] Treatment box 1, a conduit is installed on the top of the treatment box 1, and the other end of the conduit is connected to the wastewater filter box. Before the wastewater enters the treatment box 1, it needs to be filtered through the wastewater filter box to remove impurities in the wastewater, and then the filtered wastewater is guided to the inside of the treatment box 1 (this is the prior art and will not be elaborated here).

[0036] One end of the feeding barrel 8 is fixedly connected to the inner wall of the processing box 1 away from its own open end. Multiple water inlet pipes 17 are fixedly installed on both sides of the feeding barrel 8 along the vertical direction. Multiple water inlet pipes 17 are fixedly installed on both sides of the feeding barrel 8 symmetrically along the vertical direction.

[0037] A sealing plate 7 is slidably installed at one end of the water inlet pipe 17 away from the feeding barrel 8, and a push rod 16 is slidably installed in the inner cavity of the water inlet pipe 17. The end of the push rod 16 away from the inner cavity of the feeding barrel 8 is fixedly connected to one end of the sealing plate 7, and the outer wall of the push rod 16 is fixedly sleeved with an extrusion spring 18 connected to the inner wall of the water inlet pipe 17. The extrusion spring 18 applies a thrust to the push rod 16 to slide away from the feeding barrel 8. When the extrusion spring 18 is in a normal extended state, one end of the sealing plate 7 is in a separated state from one end of the water inlet pipe 17. At this time, the wastewater in the bottom, middle and upper layers inside the treatment box 1 quickly flows into the inner cavity of the feeding barrel 8 through different water inlet pipes 17.

[0038] The sealing plate 7 is configured as a truncated cone structure, and the small end of the sealing plate 7 is fixedly connected to one end of the push rod 16. When the sealing plate 7 approaches the water inlet pipe 17, the inclined outer wall of the sealing plate 7 and the inner wall of the water inlet pipe 17 fit tightly, thereby increasing the sealing between the water inlet pipe 17 and the sealing plate 7.

[0039] The adjusting frame 5 is slidably installed on the outside of the feeding barrel 8, and a top pressure column 15 is fixedly installed on the end of the sealing plate 7 away from the water inlet pipe 17. The adjusting frame 5 is arranged to be a U-shaped structure, and the top of the adjusting frame 5 is located directly above the feeding barrel 8. A trapezoidal block 6 for squeezing the top pressure column 15 is fixedly installed in the vertical direction on one side of the adjusting frame 5 close to the feeding barrel 8. A plurality of trapezoidal blocks 6 are symmetrically installed on both sides of the inner cavity of the adjusting frame 5. The number of the trapezoidal blocks 6 is the same as the number of the water inlet pipes 17, and there is a one-to-one correspondence between the plurality of top pressure columns 15 and the plurality of trapezoidal blocks 6.

[0040] A plurality of stirring rods 9 for stirring the wastewater are rotatably installed in a circular arrangement in the inner cavity of the treatment box 1, and a plurality of through holes are opened in a circular arrangement at the top edge of the treatment box 1. The tops of the plurality of stirring rods 9 extend through the plurality of through holes to directly above the treatment box 1. A driving motor for rotating the plurality of stirring rods 9 is fixedly installed on the top of the treatment box 1, and a driving roller is fixedly installed on the top of the plurality of stirring rods 9. A tensioning roller is installed at the power output end of the driving motor, and the plurality of driving rollers and the tensioning roller are rotatably connected by a tensioning belt. After starting the driving motor, the tensioning roller rotates with the power output end of the driving motor, and transmits power to the plurality of driving rollers through the tensioning belt, thereby allowing the plurality of stirring rods 9 to rotate synchronously. When the stirring rods 9 rotate, the wastewater inside the treatment box 1 can be stirred to flow in a horizontal direction, thereby accelerating the flow rate of the wastewater inside the treatment box 1.

[0041] Through holes are provided on the top of the feeding barrel 8 and the processing box 1. A feeding pipe 4 is provided on the top of the processing box 1. The bottom of the feeding pipe 4 passes through two through holes and extends into the inner cavity of the feeding barrel 8. The neutralizer can be added to the interior of the feeding barrel 8 through the feeding pipe 4.

[0042] Before introducing the wastewater into the treatment box 1, first press down the adjusting frame 5. At this time, the end of the top pressure column 15 away from the sealing plate 7 is in contact with the inclined side wall of the trapezoidal block 6. As the adjusting frame 5 continues to move downward, the trapezoidal block 6 continuously applies pressure to one end of the top pressure column 15, thereby pushing the push rod 16 to move toward the inner cavity close to the feeding barrel 8. At the same time, the extrusion spring 18 is squeezed and contracted until one end of the sealing plate 7 and the end of the water inlet pipe 17 away from the feeding barrel 8 are tightly fitted, and one end of the top pressure column 15 is in contact with the small head end of the trapezoidal block 6. At this time, the interior of the feeding barrel 8 is in a sealed state. Then, a neutralizing agent (such as lime, limestone, dolomite, soda, caustic soda, etc.) is added from the top of the feeding barrel 8. The neutralizing agent accumulates in the inner cavity of the feeding barrel 8 under the action of gravity. Then, the filtered wastewater is introduced into the inner cavity of the treatment box 1 through the conduit until the water level of the wastewater submerges the water inlet pipe 17 closest to the top of the feeding barrel 8, and then the introduction of the wastewater into the treatment box 1 is stopped. , then move the adjusting frame 5 upward until one end of the top pressure column 15 is completely separated from one end of the trapezoidal block 6. At this time, the external force of the extrusion spring 18 disappears, pushing the push rod 16 to move away from the inner cavity of the feeding barrel 8, thereby realizing the separation of one end of the sealing plate 7 from one end of the water inlet pipe 17. At this time, the wastewater located in the bottom, middle and upper layers of the treatment box 1 enters the interior of the feeding barrel 8 through different water inlet pipes 17 and mixes with the neutralizer. With the continuous rotation of multiple stirring rods 9, the wastewater located in the bottom, middle and upper layers of the treatment box 1 continuously enters the interior of the feeding barrel 8 through the water inlet pipe 17, and the wastewater inside the feeding barrel 8 continuously enters the interior of the treatment box 1 through the water inlet pipe 17, so that the wastewater located in the bottom, middle and upper layers of the treatment box 1 can be fully mixed with the neutralizer. After the upper wastewater is mixed with the bottom wastewater, the fixed pH value in the wastewater will not change, thereby avoiding the situation where the wastewater discharge does not meet the environmental protection standards and is not easy to cause negative impact on the environment.

[0043] One end of the sliding rod 3 is fixedly connected to the top of the adjusting frame 5, and the top of the sliding rod 3 extends to the top of the processing box 1. A hydraulic cylinder for moving the sliding rod 3 is fixedly installed on the top of the processing box 1. The power output end of the hydraulic cylinder is fixedly connected to the top of the sliding rod 3 through a connecting plate. By controlling the moving direction of the power output end of the hydraulic cylinder, the adjusting frame 5 can be moved up and down with the sliding rod 3, and the moving adjusting frame 5 can be limited, thereby improving the convenience of the up and down movement of the adjusting frame 5.

[0044] Guide grooves 19 are provided on both sides of the adjustment frame 5 along the vertical direction, and a guide plate 20 is slidably installed in the inner cavity of the guide groove 19, one end of the guide plate 20 is fixedly connected to the bottom of the inner cavity of the processing box 1, and the guide plate 20 is arranged as an L-shaped structure, one end of the guide plate 20 extends to the inside of the guide groove 19, and the other end is fixedly connected to the bottom of the inner cavity of the processing box 1. When the adjustment frame 5 moves up and down, one end of the guide plate 20 slides relative to the adjustment frame 5 along the guide groove 19, which can limit the moving trajectory of the adjustment frame 5, prevent the adjustment frame 5 from shaking and deflecting when moving up and down, and improve the stability of the adjustment frame 5 moving up and down.

[0045] According to the above embodiment, since the wastewater concentrations generated during the production of different types of chemical synthetic raw materials are different, resulting in different pH values ​​in the wastewater, it is necessary to introduce different masses of neutralizers into the feeding barrel 8. When the neutralizer value inside the feeding barrel 8 is introduced to the maximum amount and has not yet reached the equilibrium value of the wastewater pH value, it is necessary to add the neutralizer to the feeding barrel 8 again. Since the feeding barrel 8 is full of wastewater, the neutralizer added again cannot be mixed with the wastewater at the bottom of the treatment box 1.

[0046] In order to solve the above technical problems, it also includes an air pump, one end of which is fixedly connected to the top edge of the processing box 1, and an air duct 2 is fixedly installed at the air outlet end of the air pump. The top of the processing box 1 and the top of the feeding barrel 8 are both provided with mounting holes compatible with the air duct 2. The end of the air duct 2 away from the air pump passes through the two mounting holes and extends into the inner cavity of the feeding barrel 8. When it is necessary to add neutralizer to the inside of the feeding barrel 8 again, first move the adjustment frame 5 downward to allow one end of the top pressure column 15 to fit with the small head end of the trapezoidal block 6 again until one end of the sealing plate 7 is tightly fitted with one end of the water inlet pipe 17, and then start the air pump. At this time, the air around the air pump is sucked in through the air inlet end and the sucked air is compressed, and the compressed air enters the inside of the feeding barrel 8 through the air duct 2.

[0047] One end of the water outlet pipe 12 is fixedly connected to the outer wall of the feeding barrel 8, and the water outlet pipe 12 is located directly below the multiple water inlet pipes 17. A sealing plug 14 is slidably installed at the end of the water outlet pipe 12 away from the feeding barrel 8, and a push rod 13 is fixedly installed at the end of the sealing plug 14 close to the water outlet pipe 12. The outer wall of the push rod 13 is fixedly sleeved with a return spring connected to the inner wall of the water outlet pipe 12. The return spring applies a thrust to the push rod 13 to slide toward the inner cavity of the feeding barrel 8, so that one end of the sealing plug 14 is always tightly fitted with one end of the water outlet pipe 12. When the compressed air enters the interior of the feeding barrel 8, it continuously pressurizes the wastewater inside the feeding barrel 8, and the wastewater pushes the sealing plug 14 to push the wastewater into the feeding barrel 8. The sealing plug 14 moves in the direction away from the water outlet pipe 12 until the thrust exerted by the wastewater on the sealing plug 14 is greater than the elastic force of the return spring. The return spring is in an extended state, so that the push rod 13 pushes the sealing plug 14 to move until one end of the sealing plug 14 is separated from one end of the water outlet pipe 12. At this time, the wastewater inside the feeding barrel 8 flows to the inside of the treatment box 1 through the water outlet pipe 12. When the wastewater liquid level inside the feeding barrel 8 is below the water outlet pipe 12, the air pump stops working. At this time, the sealing plug 14 is quickly reset to one end under the action of the return spring and fits tightly with one end of the water outlet pipe 12. The neutralizer can be added again through the top of the feeding barrel 8.

[0048] A seal for sealing the bottom of the feed pipe 4 is provided in the inner cavity of the processing box 1. Before the air pump is started, the seal is needed to seal the bottom of the feed pipe 4 to prevent the compressed air entering the feed barrel 8 from escaping to the outside of the feed barrel 8 through the feed pipe 4, so that the inside of the feed barrel 8 can be quickly filled with compressed air.

[0049] The seal includes a baffle 11 and a sliding rod 21. Through holes are provided at the top edges of the processing box 1 and the feeding barrel 8. The sliding rod 21 is slidably installed in the inner cavity of the feeding barrel 8. A sealing ring 10 for sealing the through hole opened on the top of the feeding barrel 8 is fixedly installed on the outer wall of the sliding rod 21. One side of the baffle 11 is fixedly connected to the outer wall of the sliding rod 21, and the baffle 11 is located directly below the feeding pipe 4. The top of the sliding rod 21 passes through two through holes and extends to directly above the processing box 1. An electric telescopic rod for moving the sliding rod 21 is fixedly installed at the top edge of the processing box 1. The power output end of the electric telescopic rod is fixedly connected to the top of the sliding rod 21 through a connecting plate, which is conducive to controlling the up and down movement distance of the sliding rod 21.

[0050] Before starting the air pump, control the electric telescopic rod to move the sliding rod 21 upward until the top of the sealing ring 10 fits with the bottom of the inner cavity of the feeding barrel 8, thereby sealing the insertion hole. When the top of the sealing ring 10 fits with the top of the inner cavity of the feeding barrel 8, the top of the baffle 11 fits tightly with the bottom of the feeding pipe 4, so that the bottom of the feeding pipe 4 can be blocked to prevent the compressed air entering the feeding barrel 8 from leaking through the insertion hole and the feeding pipe 4, so that the air pressure inside the feeding barrel 8 can be quickly increased.

[0051] While embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the invention, and that the scope of the invention is defined by the appended claims and their equivalents.

Claims

1. A chemical synthesis raw material pilot production cleaning wastewater treatment system, characterized in that: include: Processing box (1); A feed barrel (8) has one end fixedly connected to the inner wall of the processing box (1) away from its own opening end, and a plurality of water inlet pipes (17) are fixedly installed on both sides of the feed barrel (8) along the vertical direction, and a sealing plate (7) is slidably installed on one end of the water inlet pipe (17) away from the feed barrel (8); An adjusting frame (5) is slidably mounted on the outside of the feeding barrel (8); a top pressure column (15) is fixedly mounted on one end of the sealing plate (7) away from the water inlet pipe (17); and a trapezoidal block (6) for pressing the top pressure column (15) is fixedly mounted along the vertical direction on one side of the adjusting frame (5) close to the feeding barrel (8); A sliding rod (3) has one end fixedly connected to the top of the adjustment frame (5), and the top of the sliding rod (3) extends to the top of the processing box (1), and a hydraulic cylinder for moving the sliding rod (3) is fixedly installed on the top of the processing box (1); An air pump, one end of which is fixedly connected to the top edge of the processing box (1), and an air guide pipe (2) is fixedly installed at the air outlet end of the air pump, and the top of the processing box (1) and the top of the feeding barrel (8) are both provided with mounting holes adapted to the air guide pipe (2), and the end of the air guide pipe (2) away from the air pump passes through the two mounting holes and extends into the inner cavity of the feeding barrel (8); One end of the water outlet pipe (12) is fixedly connected to the outer wall of the feed barrel (8), and the water outlet pipe (12) is located directly below the plurality of water inlet pipes (17). A sealing plug (14) is slidably mounted on one end of the water outlet pipe (12) away from the feed barrel (8).

2. A chemical synthesis bulk drug pilot production cleaning wastewater treatment system according to claim 1, characterized in that: The tops of the feeding barrel (8) and the processing box (1) are both provided with through holes, the top of the processing box (1) is provided with a feeding pipe (4), the bottom of the feeding pipe (4) passes through the two through holes and extends into the inner cavity of the feeding barrel (8), and the inner cavity of the processing box (1) is provided with a sealing member for sealing the bottom of the feeding pipe (4).

3. A chemical synthesis bulk drug pilot production cleaning wastewater treatment system according to claim 1, characterized in that: The adjustment frame (5) is configured as a U-shaped structure, and the top of the adjustment frame (5) is located directly above the feed barrel (8). Guide grooves (19) are provided on both sides of the adjustment frame (5) along the vertical direction. A guide plate (20) is slidably installed in the inner cavity of the guide groove (19), and one end of the guide plate (20) is fixedly connected to the bottom of the inner cavity of the processing box (1).

4. A chemical synthesis bulk drug pilot production cleaning wastewater treatment system according to claim 1, characterized in that: A push rod (16) is slidably mounted in the inner cavity of the water inlet pipe (17); one end of the push rod (16) away from the inner cavity of the feed barrel (8) is fixedly connected to one end of the sealing plate (7); and an extrusion spring (18) connected to the inner wall of the water inlet pipe (17) is fixedly sleeved on the outer wall of the push rod (16).

5. A chemical synthesis bulk drug pilot production cleaning wastewater treatment system according to claim 4, characterized in that: The sealing plate (7) is configured as a truncated cone-shaped structure, and the small end of the sealing plate (7) is fixedly connected to one end of the push rod (16).

6. A chemical synthesis bulk drug pilot production cleaning wastewater treatment system according to claim 1, characterized in that: A push rod (13) is fixedly mounted on one end of the sealing plug (14) close to the water outlet pipe (12), and a return spring connected to the inner wall of the water outlet pipe (12) is fixedly sleeved on the outer wall of the push rod (13).

7. A chemical synthesis bulk drug pilot production cleaning wastewater treatment system according to claim 1, characterized in that: A plurality of stirring rods (9) for stirring the wastewater are rotatably installed in an annular arrangement in the inner cavity of the treatment box (1), and a plurality of through holes are opened in an annular arrangement at the top edge of the treatment box (1). The tops of the plurality of stirring rods (9) extend through the plurality of through holes to the top of the treatment box (1), and a driving motor for rotating the plurality of stirring rods (9) is fixedly installed on the top of the treatment box (1).

8. A chemical synthesis bulk drug pilot production cleaning wastewater treatment system according to claim 2, characterized in that: The sealing member comprises a baffle (11) and a sliding rod (21). Through holes are provided at the top edges of the processing box (1) and the feeding barrel (8). The sliding rod (21) is slidably installed in the inner cavity of the feeding barrel (8). A sealing ring (10) for sealing the through hole provided at the top of the feeding barrel (8) is fixedly installed on the outer wall of the sliding rod (21). One side of the baffle (11) is fixedly connected to the outer wall of the sliding rod (21), and the baffle (11) is located directly below the feeding pipe (4). The top of the sliding rod (21) passes through the two through holes and extends to directly above the processing box (1). An electric telescopic rod for moving the sliding rod (21) is fixedly installed at the top edge of the processing box (1).

9. A chemical synthesis API pilot production cleaning wastewater treatment process, according to the chemical synthesis API pilot production cleaning wastewater treatment system of claim 1, characterized in that: The steps include: A1; by pressing down the adjusting frame (5) until the small end of the trapezoidal block (6) and one end of the top pressure column (15) are in contact with each other, and pushing the sealing plate (7) to move until one end of the sealing plate (7) and one end of the water inlet pipe (17) are in contact with each other, then adding a neutralizing agent to the inside of the feeding tube (8) through the feeding pipe (4); after the wastewater is introduced into the inside of the treatment box (1), pushing the sealing plate (7) to move the plurality of trapezoidal blocks (6) upward until one end of the top pressure column (15) and the small end of the trapezoidal block (6) are separated, the squeezing spring (18) is quickly reset, and the wastewater located in the bottom layer, the middle layer and the upper layer of the treatment box (1) can be fully mixed with the neutralizing agent; when the wastewater in the upper layer is mixed with the wastewater in the bottom layer, the fixed pH value in the wastewater will not change, thereby avoiding the situation where the wastewater discharge does not meet the environmental protection standards and is not likely to cause negative impact on the environment.

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