Multistage sewage treatment equipment and production process for hexafluoroisopropanol production

Abstract

This invention discloses a multi-stage wastewater treatment equipment and production process for hexafluoroisopropanol production, relating to the field of wastewater treatment technology. The equipment includes: a sedimentation tank; a motor fixedly connected to the top of the sedimentation tank; a stirring container fixedly connected to the top of the inner wall of the sedimentation tank; a partition fixedly connected to the inner wall of the stirring container; a chemical storage tank fixedly connected to the top of the sedimentation tank; a first container fixedly connected to the top of the sedimentation tank; a lifting rod slidably connected to the inner wall of the first container; a rotating rod fixedly connected to the output end of the motor; fan blades fixedly connected to the circumference of the rotating rod; a belt drivingly connecting the rotating rod; and a transmission rod drivingly connecting to the inner wall of the belt. This allows for prolonged and complete stirring of the chemical solution before discharge. This mechanical transmission ensures that the quicklime and water are thoroughly stirred before the lime slurry is discharged.

Description

Technical Field

[0001] This invention belongs to the field of wastewater treatment, specifically relating to a multi-stage wastewater treatment device for the production of hexafluoroisopropanol. Background Technology

[0002] Wastewater containing hexafluoroisopropanol is characterized by strong corrosiveness, high toxicity, and poor biodegradability. A common treatment method is to add quicklime to neutralize the fluoride ions, converting them into insoluble calcium fluoride precipitate, thereby removing the fluoride.

[0003] The quicklime and water are first stirred, and the stirring time needs to be a certain amount of time. If the stirring time is too short, the quicklime will not be fully dissolved into the water, and a large amount of powder will still float on the water surface in the form of particles. This incompletely mixed solution is discharged into the wastewater, and the quicklime particles cannot fully react with the fluoride ions in the wastewater, resulting in a low fluoride removal rate and substandard effluent quality. Summary of the Invention

[0004] Therefore, it is necessary to provide a multi-stage wastewater treatment device for hexafluoroisopropanol production to address the shortcomings of existing technologies and solve the problem of multi-stage wastewater treatment.

[0005] To solve the above problems, this application adopts the following technical solution: One objective of this application is to provide a multi-stage wastewater treatment device for hexafluoroisopropanol production, comprising: a sedimentation tank; a motor fixedly connected to the top of the sedimentation tank; a stirring container fixedly connected to the top of the inner wall of the sedimentation tank; a baffle plate fixedly connected to the inner wall of the stirring container; a chemical storage tank fixedly connected to the top of the sedimentation tank; a first container fixedly connected to the top of the sedimentation tank; a lifting rod slidably connected to the inner wall of the first container; a rotating rod fixedly connected to the output end of the motor; a fan blade fixedly connected to the circumferential surface of the rotating rod; a belt drivingly connecting the rotating rod; a transmission rod drivingly connecting to the inner wall of the belt; a threaded rod fixedly connected to the bottom of the transmission rod; an agitator plate fixedly connected to the circumferential surface of the threaded rod; a circular protrusion slidably connected to the inner wall of the sedimentation tank; roller columns provided on the surface of the circular protrusion; and an outer shell fixedly connected to the surface of the sedimentation tank. A triangular plate with an inclined surface is connected to the sedimentation tank. A gear support plate is fixedly connected to the sedimentation tank surface. Multiple gears are rotatably connected to the surface of the gear support plate. Multiple teeth are provided on the surface of the gears. Short blocks are provided on the surface of the teeth. A rotating plate is rotatably connected to the inner wall of the short blocks. A thin short block is provided on the surface of the rotating plate. An external gear is fixedly connected to the surface of the multiple gears. A large gear is rotatably connected to the surface of the gear support plate. The large gear meshes with the external gear. An external long rod is fixedly connected to the surface of the large gear. A medicine outlet hole is opened on the surface of the partition plate. A transverse groove is opened on the surface of the partition plate. An L-shaped rod is slidably connected in the transverse groove of the partition plate. A water passage hole is opened on the surface of the L-shaped rod. A transmission rod drives a threaded rod and an agitator plate to rotate, continuously stirring the quicklime and water in the mixing container. Then, through transmission, the solution is completely stirred for a long time before being discharged.

[0006] In some embodiments, a small vertical plate is slidably connected to the inner wall of the L-shaped rod, and a clamping plate is fixedly connected to the left side of the small vertical plate. An inner rotating wheel is rotatably connected to the inner wall of the partition, and the surface of the inner rotating wheel is slidably connected to the inner wall of the clamping plate. The small vertical plate drives the inner rotating wheel to rotate left and right in the drug outlet hole through the clamping plate. The rotation of the inner rotating wheel in the drug outlet hole prevents the drug outlet hole from being gradually blocked by the deposited dry powder, and keeps the drug discharge channel open at all times.

[0007] In some embodiments, the sedimentation tank is provided with a bottom support frame, the bottom of the lifting rod is located above the top movement trajectory of the stirring plate, and a certain amount of water can be discharged with each rotation of the stirring plate. The surface of the round protrusion is located above the surface movement trajectory of the stirring plate, and the round protrusion can be pushed outward once with each rotation of the stirring plate. The inclined surface of the triangular plate is located above the movement trajectory of the roller column, and the contact between the roller column and the inclined surface of the triangular plate will push it upward. The roller can reduce the friction. A first spring is provided between the surface of the outer long rod and the surface of the outer shell. The short block of the toothed part is in contact with the thin short block of the rotating plate. A first torsion spring is provided between the teeth of the multi-gear and the inner wall of the rotating plate. The bottom of the triangular plate is located above the surface movement trajectory of the rotating plate. The surface of the L-shaped rod is located above the surface movement trajectory of the outer long rod. The horizontal groove is located in the middle section of the medicine outlet. A second spring is provided between the surface of the small vertical plate and the surface of the L-shaped rod. The surface of the inner rotating wheel is located in the medicine outlet. A sixth spring is provided between the surface of the L-shaped rod and the surface of the stirring container.

[0008] In some embodiments, a dosing shell is fixedly connected to the top of the inner wall of the sedimentation tank at one end, and the other end of the dosing shell is fixedly connected to the top of the stirring container. An upper protruding rod is slidably connected to the inner wall of the dosing shell, a connecting column is fixedly connected to the bottom of the upper protruding rod, a lower circular block is fixedly connected to the bottom of the connecting column, and a rotating support rod is fixedly connected to the circumference of the connecting column. Four rotating support rods are provided, and a notched plate is rotatably connected to the inner wall of each rotating support rod. A vertical rotating plate is rotatably connected to the inner wall of each rotating support rod. The notched plate and the vertical rotating plate... Each plate is provided in twos. The notched plate and the vertical rotating plate are symmetrically arranged around the center point of the connecting column. A rubber plate is fixedly connected between the surface of the notched plate and the surface of the vertical rotating plate. A beveled circular plate is fixedly connected to the inner wall of the dosing shell. The surface of the beveled circular plate is provided with a slope. The top of the notched plate and the vertical rotating plate are provided with a slope. The upper protruding rod is raised so that the quicklime at the bottom of the storage tank slides into the dosing shell and falls onto the top of the lower circular block and the surface of each plate. In this way, when adding medicine, the water vapor in the mixing container is blocked below the channel and cannot enter the storage tank.

[0009] In some embodiments, the lower circular block has a short flat groove on its surface, an air valve is fixedly connected to the top of the stirring container, a lower blowing pipe is fixedly connected to the bottom of the air valve, an air pipe is provided on the top of the air valve, a small cylinder is slidably connected to the inner wall of the dosing shell, a short rod is provided on the surface of the small cylinder, a lower rotating plate is rotatably connected to the surface of the stirring plate, a rubber block is fixedly connected to the surface of the lower rotating plate, and an upper lifting plate is slidably connected to the inner wall of the stirring plate. Through the small cylinder, air valve and lower blowing pipe, air is blown onto the powder during the falling process to increase the falling range of the powder. If it is not blown away, the powder will fall in one position, reducing the contact area of ​​the powder and prolonging the time for the powder to dissolve.

[0010] In some embodiments, the bottom of the lower circular block is located above the top movement trajectory of the stirring plate, the inclined surfaces of the vertical rotating plate and the notch plate are located above the inclined surface movement trajectory of the inclined circular plate, and the inclined surface of the inclined circular plate will squeeze and push the vertical rotating plate and the notch plate outward. The control end of the lower blowpipe is located above the movement trajectory of the short rod of the small cylinder. A No. 3 spring is provided between the surface of the small cylinder and the surface of the air valve. The No. 3 spring can continuously push the small cylinder. The surface of the air valve is located above the movement trajectory of the short flat groove of the lower circular block. A No. 4 spring is provided between the top of the stirring plate and the bottom of the lifting plate. The No. 4 spring will continuously push the stirring plate to move upward. The surface of the rubber block is located above the movement trajectory of the bottom of the lifting plate. The surface of the lifting plate is located above the movement trajectory of the bottom of the lower circular block. A No. 2 torsion spring is provided between the inner wall of the rotating support rod and the surface of the notch plate. A No. 3 torsion spring is provided between the inner wall of the rotating support rod and the surface of the vertical rotating plate.

[0011] In some embodiments, the circumferential surface of the threaded rod is slidably connected to the inner wall of the partition, a movable rod is sleeved on the surface of the threaded rod, the movable rod has an internal thread, a No. 7 spring is provided between the bottom of the movable rod and the bottom of the inner wall of the mixing container, a water outlet is fixedly connected to the top of the inner wall of the partition, an outer fixing frame is fixedly connected to the top of the inner wall of the partition, one end of an upper rotating rod is rotatably connected to the inner wall of the outer fixing frame, one end of a lower telescopic rod is rotatably connected to the inner wall of the movable rod, the other end of the lower telescopic rod is rotatably connected to the other end of the upper rotating rod, and a medicine dispensing tube is fixedly connected to the bottom of the clamping plate, the surface of the medicine dispensing tube being located within the inner wall of the movable rod.

[0012] In some embodiments, the baffle surface has water outlet holes, one end of an external branch pipe is fixedly connected to the bottom of the baffle, the other end of the external branch pipe is fixedly connected to the surface of the water outlet, a push rod is slidably connected to the inner wall of the sedimentation tank, the surface of the push rod is provided with an inclined surface, a small roller is provided on the inner wall of the moving rod, the inclined surface of the push rod is located on the movement trajectory of the small roller of the moving rod, a flow intercepting plate is slidably connected to the surface of the baffle, the surface of the push rod is fixedly connected to the surface of the flow intercepting plate, a No. 5 spring is provided between the surface of the sedimentation tank and the surface of the push rod, and the agitator... A push-pull plate is slidably connected to the top of the inner wall of the mixing container. The surface of the push-pull plate is fixedly connected to the surface of the push-out rod. One end of a water outlet pipe is fixedly connected to the bottom of the second container. The other end of the water outlet pipe is fixedly connected to the top of the mixing container. A movable column is slidably connected to the inner wall of the water outlet pipe. The bottom of the movable column contacts the top of the push-pull plate. A water flow groove is provided on the surface of the movable column. A support block is provided on the surface of the movable column. A control valve is fixedly connected to the top of the second container. A control end is provided on the surface of the control valve. The control end of the control valve is located inside the inner wall of the push-out rod.

[0013] Compared with the prior art, the beneficial effects of the present invention are: 1. In this invention, quicklime and water are premixed in a mixing container. A motor drives a rotating rod to rotate, which in turn drives a transmission rod to rotate via a belt. The transmission rod drives a threaded rod and a stirring plate to rotate, continuously stirring the quicklime and water in the mixing container. The solution is then discharged only after a long period of complete stirring through transmission. This mechanical transmission ensures that the quicklime and water must be thoroughly stirred before the lime slurry can be discharged. The quicklime in the discharged lime slurry is fully dissolved and dispersed, resulting in a high reaction efficiency with fluoride ions in the wastewater and a stable fluoride removal rate that meets standards. If the solution is not thoroughly stirred before being discharged into the wastewater, a large amount of undissolved quicklime particles will settle at the bottom of the wastewater tank, wasting the reagent and resulting in a low fluoride removal rate. When the small vertical plate moves left and right with the discharge action via the L-shaped rod, the small vertical plate drives the inner rotating wheel to rotate left and right in the discharge hole through the clamp. The rotation of the inner rotating wheel in the discharge hole prevents the discharge hole from being gradually blocked by the deposited dry powder, keeping the discharge channel open at all times. If the discharge hole is not stirred for a long time, the quicklime will gradually settle due to gravity, which may block the discharge hole and cause problems with the discharge.

[0014] 2. In this invention, when the stirring plate rotates, the top of the lower circular block is squeezed. The lower circular block pushes the upper protruding rod upward through the connecting column. The upper protruding rod tilts up, causing the quicklime at the bottom of the storage tank to slide into the dosing shell and fall onto the top of the lower circular block and the surface of each plate. In this way, when adding medicine, the water vapor in the stirring container is blocked below the channel and cannot enter the storage tank, which keeps the quicklime dry and prevents it from clumping due to moisture absorption. This ensures smooth flow of quicklime. By adding a spring plate to the scraper, the spring plate pops out each time medicine is added, knocking the medicine powder on the water surface to the bottom of the water. If the medicine powder is not knocked to the bottom of the water, a large amount of powder will float on the liquid surface and form clumps, which require a long stirring time to gradually disperse, thus prolonging the preparation time of the lime slurry. The added powder blowing mechanism blows air on the powder during the falling process, increasing the falling range of the powder. If it is not blown away, the medicine powder will fall in one position, reducing the contact area of ​​the medicine powder and prolonging the time for the medicine powder to dissolve.

[0015] 3. In this invention, the motor reverses to cause the threaded rod to rotate counterclockwise. The threaded rod, through its threads, drives the moving rod downwards. The downward movement of the moving rod pulls the lower telescopic rod, which in turn pulls the upper rotating rod downwards. The upper rotating rod then moves the dispensing tube downwards into the wastewater of the sedimentation tank. This allows the lime slurry to be discharged underwater, preventing it from impacting the liquid surface from falling from a height and generating excessive foam. Foam could potentially carry harmful substances and overflow the equipment. After dispensing, the motor rotates clockwise, driving the moving rod upwards. The small rollers on the inner wall of the moving rod contact the inclined surface of the push rod, pushing the push rod forward and compressing the No. 5 spring. When the push rod moves forward, it moves the baffle plate, opening the water outlet on the baffle. This allows a certain amount of clean water to be discharged into the mixing container after the medicine is discharged, to clean the residual medicine in the container. Then the clean water flows through the water outlet to the water outlet pipe, and the raised water outlet pipe will be away from the waste liquid. The pipe wall will not be immersed in the corrosive wastewater containing hydrofluoric acid for a long time, greatly extending the service life of the pipe. If the container is not cleaned with clean water, the residual medicine will form hard calcium crystals on the medicine outlet, water outlet head and the inner wall of the medicine outlet pipe, gradually blocking the channel, reducing the amount of medicine discharged or even completely blocking it. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the sedimentation tank in one embodiment of the present invention; Figure 2 This is a schematic cross-sectional view of a sedimentation tank in one embodiment of the present invention; Figure 3 This is a schematic diagram of the position and structure of the stirring container in one embodiment of the present invention; Figure 4 This is a schematic cross-sectional view of the stirring container in one embodiment of the present invention; Figure 5 This is an embodiment of the present invention. Figure 4 Enlarged schematic diagram of section A in the middle; Figure 6 This is an embodiment of the present invention. Figure 4 Enlarged schematic diagram of section B; Figure 7 This is a schematic diagram of the position and structure of the notch plate in one embodiment of the present invention; Figure 8 This is a schematic cross-sectional view of the dosing shell in one embodiment of the present invention; Figure 9 This is a schematic cross-sectional view of the stirring plate in one embodiment of the present invention; Figure 10 This is a schematic diagram of the positional structure of the L-shaped rod in one embodiment of the present invention; Figure 11 This is a schematic cross-sectional view of the water outlet pipe in one embodiment of the present invention.

[0017] Explanation of key figure labels: 1. Sedimentation tank; 2. Motor; 201. Fan blade; 202. Container No. 1; 203. Container No. 2; 204. Rotating rod; 205. Belt; 206. Stirring plate; 207. Lifting rod; 3. Stirring container; 301. Chemical storage tank; 302. Transmission rod; 303. Threaded rod; 304. Partition plate; 305. Gear support plate; 306. Outer shell; 307. Round protrusion; 308. Multi-gear; 309. Rotating plate; 310. External gear; 311. Large gear; 312. Triangular plate; 313. Small vertical plate; 314. L-shaped rod; 315. Clamping plate; 316. Inner rotating wheel; 317. Outer long rod; 4. Chemical dosing shell; 01. Vertical rotating plate; 402. Connecting column; 403. Lower round block; 404. Rotating support rod; 405. Notched plate; 406. Slanted round plate; 407. Upper protruding rod; 408. Rubber plate; 409. Small cylinder; 410. Air valve; 411. Lower blow pipe; 412. Upper lifting plate; 413. Lower rotating plate; 414. Rubber block; 5. Water outlet; 501. Medicine pipe; 502. External branch pipe; 503. Upper rotating rod; 504. Lower telescopic rod; 505. Moving rod; 506. Push-out rod; 507. Cut-off plate; 508. Push-pull plate; 509. Movable column; 510. Water outlet pipe; 511. Control valve; 512. External fixed frame. Detailed Implementation

[0018] The specific embodiments of the present invention will now be described in detail with reference to the accompanying drawings, but it should be understood that the scope of protection of the present invention is not limited to the specific embodiments.

[0019] like Figure 1 - Figure 11As shown, one embodiment of the present invention is: a multi-stage wastewater treatment device for hexafluoroisopropanol production, comprising: a sedimentation tank 1, a motor 2 fixedly connected to the top of the sedimentation tank 1, a stirring container 3 fixedly connected to the top of the inner wall of the sedimentation tank 1, a partition 304 fixedly connected to the inner wall of the stirring container 3, a chemical storage tank 301 fixedly connected to the top of the sedimentation tank 1, a first container 202 fixedly connected to the top of the sedimentation tank 1, an upper lifting rod 207 slidably connected to the inner wall of the first container 202, and a rotating... Rod 204, with fan blades 201 fixedly connected to its circumference, belt 205 drivingly connected to the rotating rod 204, transmission rod 302 drivingly connected to the inner wall of belt 205, threaded rod 303 fixedly connected to the bottom of transmission rod 302, stirring plate 206 fixedly connected to the circumference of threaded rod 303, circular protrusion 307 slidingly connected to the inner wall of sedimentation tank 1, roller columns provided on the surface of circular protrusion 307, outer shell 306 fixedly connected to the surface of sedimentation tank 1, outer shell 306 slidingly connected to the surface of outer shell 306. A triangular plate 312 is connected to the sedimentation tank 1. The surface of the triangular plate 312 has an inclined surface. A gear support plate 305 is fixedly connected to the surface of the sedimentation tank 1. Multiple gears 308 are rotatably connected to the surface of the gear support plate 305. Multiple gears 308 have multiple teeth on their surface, and short blocks are provided on the surface of the teeth. A rotating plate 309 is rotatably connected to the inner wall of the short blocks. Small short blocks are provided on the surface of the rotating plate 309. An external gear 310 is fixedly connected to the surface of the multiple gears 308. A large gear 311 is rotatably connected to the surface of the gear support plate 305. 311 meshes with the external gear 310. An outer long rod 317 is fixedly connected to the surface of the large gear 311. A medicine outlet hole is opened on the surface of the partition plate 304. A transverse groove is opened on the surface of the partition plate 304. An L-shaped rod 314 is slidably connected in the transverse groove of the partition plate 304. A water passage hole is opened on the surface of the L-shaped rod 314. The transmission rod 302 drives the threaded rod 303 and the stirring plate 206 to rotate, continuously stirring the quicklime and water in the stirring container 3. Then, the medicine is discharged after a long time of complete stirring through transmission.

[0020] A small vertical plate 313 is slidably connected to the inner wall of the L-shaped rod 314. A clamping plate 315 is fixedly connected to the left side of the small vertical plate 313. An inner rotating wheel 316 is rotatably connected to the inner wall of the partition 304. The surface of the inner rotating wheel 316 is slidably connected to the inner wall of the clamping plate 315. The small vertical plate 313 drives the inner rotating wheel 316 to rotate left and right in the drug outlet hole through the clamping plate 315. The rotation of the inner rotating wheel 316 in the drug outlet hole prevents the drug outlet hole from being gradually blocked by the deposited dry powder, and keeps the drug discharge channel open at all times.

[0021] The sedimentation tank 1 is equipped with a bottom support frame. The bottom of the lifting rod 207 is located above the top movement trajectory of the agitator plate 206. Each rotation of the agitator plate 206 discharges a certain amount of water. The surface of the round protrusion 307 is located above the movement trajectory of the agitator plate 206. Each rotation of the agitator plate 206 pushes the round protrusion 307 outward once. The inclined surface of the triangular plate 312 is located above the movement trajectory of the roller column. The contact between the roller column and the inclined surface of the triangular plate 312 pushes it upward. The roller can reduce friction. The surface of the outer rod 317 is in contact with the outer shell. A first spring is provided between the surfaces of 306. The short block of the toothed gear contacts the short block of the rotating plate 309. A first torsion spring is provided between the teeth of the multi-gear 308 and the inner wall of the rotating plate 309. The bottom of the triangular plate 312 is located on the motion trajectory of the rotating plate 309. The surface of the L-shaped rod 314 is located on the motion trajectory of the outer long rod 317. The horizontal groove is located in the middle section of the medicine outlet hole. A second spring is provided between the surface of the small vertical plate 313 and the surface of the L-shaped rod 314. The surface of the inner rotating wheel 316 is located in the medicine outlet hole. A sixth spring is provided between the surface of the L-shaped rod 314 and the surface of the stirring container 3.

[0022] A production process for a multi-stage wastewater treatment system for hexafluoroisopropanol production includes the following steps: Step 1: Turn on motor 2. Motor 2 drives rotating rod 204 to rotate. Rotating rod 204 drives fan blade 201 to rotate. The rotation of fan blade 201 stirs the hexafluoroisopropanol wastewater. At the same time, rotating rod 204 drives belt 205 to rotate. Belt 205 drives transmission rod 302 to rotate. Transmission rod 302 drives threaded rod 303 to rotate. Threaded rod 303 drives agitator 206 to rotate. At this time, quicklime and water are placed between the inner wall of the mixing container 3 and the top of partition 304. The rotation of agitator 206 thoroughly stirs the mixture. With each rotation of agitator 206, the round protrusion 307 is squeezed once. The round protrusion 307 is squeezed and slides along the inner wall of sedimentation tank 1. The sliding of round protrusion 307 compresses spring No. 1. Round protrusion 307 drives the roller column on the surface. The roller column squeezes the inclined surface of triangular plate 312. Triangular plate 312 is squeezed and moves upward. Step Two: The upward movement of the triangle 312 causes the teeth of the multi-gear 308 to rotate. However, due to the short blocks on the surface of the multi-gear 308 and the thin short blocks on the surface of the rotating plate 309, the thin short blocks of the rotating plate 309 are stuck and cannot rotate. Then, the stirring plate 206 moves away from the surface of the round protrusion 307, and the round protrusion 307 is ejected by the first spring. The round protrusion 307 drives the roller column to move away from the triangle 312, and the triangle 312 slides down due to gravity. The triangle 312 touches the surface of the rotating plate 309. At this point, the short blocks of the multi-gear 308 can no longer restrict the thin short blocks of the rotating plate 309, and the triangle 312... 12 will drive the rotating plate 309 to rotate, and the triangular plate 312 will continue to slide back to its original position. The rotated rotating plate 309 will be bounced back to its original position by the first torsion spring. In this way, the stirring plate 206 can lift the multi-gear 308 to rotate clockwise a little bit each time it rotates. The rotation of the multi-gear 308 will drive the external gear 310 to rotate. When the external gear 310 is driven to rotate continuously, it will push the large gear 311 to rotate clockwise. The rotation of the large gear 311 will drive the outer long rod 317 to rotate. The outer long rod 317 will continue to rotate until it pushes the L-shaped rod 314 to move. In this way, the quicklime and water can be fully mixed evenly through the rotation transmission of multiple gears. Step 3: As the L-shaped rod 314 moves, it pushes the No. 6 spring. At the same time, the water passage on the surface of the L-shaped rod 314 moves to the medicine outlet. At this time, the medicine outlet and the water passage will be interconnected, and the medicine in the container will start to flow out through the medicine outlet into the sedimentation tank 1. With the rotation of the fan blade 201, the hexafluoroisopropanol wastewater is fully dissolved. As the stirring plate 206 continues to rotate and squeeze the round protrusion 307, it is transmitted to the outer rod 317 away from the L-shaped rod 314. The L-shaped rod 314 will then be pushed back to its original position. The L-shaped rod 314 being pushed will move the water passage to one side. As the water passage moves away, the channel of the medicine outlet will be closed, so that the next round of stirring can continue. Step 4: With the rotation of the rotating plate 309, the small vertical plate 313 is pushed backward by the rotating plate 309. This movement compresses the second spring, causing the clamping plate 315 to move. The clamping plate 315 then moves the inner rotating wheel 316 by a certain angle. After the rotating plate 309 moves away from the small vertical plate 313, the second spring pushes the small vertical plate 313 back to its original position. The small vertical plate 313 then moves again, causing the clamping plate 315 to move. The reverse movement of the clamping plate 315 causes the inner rotating wheel 316 to move in the opposite direction by a certain angle. This ensures that with every two rotations of the stirring plate 206, the inner rotating wheel 316 rotates slightly to the left and right, thus thoroughly mixing the powder deposited in the dispensing hole with the water. In this embodiment, during operation: When hexafluoroisopropanol wastewater enters the sedimentation tank 1, the motor 2 is turned on. The motor 2 drives the rotating rod 204 to rotate, which in turn drives the fan blade 201 to rotate. The rotation of the fan blade 201 stirs the hexafluoroisopropanol wastewater. Simultaneously, the rotation of the rotating rod 204 drives the belt 205 to rotate, which in turn drives the transmission rod 302 to rotate. The transmission rod 302 then drives the threaded rod 303 to rotate, which in turn drives the agitator 206 to rotate. At this time, quicklime and water are placed between the inner wall of the mixing container 3 and the top of the partition 304. The rotation of the agitator 206 thoroughly stirs the mixture. With each rotation of the agitator 206, the round protrusion 307 is compressed once. 07, when squeezed, slides along the inner wall of sedimentation tank 1. The sliding of the round protrusion 307 compresses the first spring, causing the round protrusion 307 to drive the roller column on its surface. The roller column presses against the inclined surface of the triangular plate 312, causing the triangular plate 312 to move upward. The upward movement of the triangular plate 312 drives the teeth of the multi-gear 308 to rotate. However, due to the short blocks on the surface of the multi-gear 308 and the thin short blocks on the surface of the rotating plate 309, the thin short blocks of the rotating plate 309 are stuck by the short blocks of the multi-gear 308 and cannot rotate. Subsequently, the stirring plate 206 moves away from the surface of the round protrusion 307, and the round protrusion 307 is ejected by the first spring. The round protrusion 307 drives the roller column to move, and the roller column moves away from the triangular plate 312. The triangular plate 312 slides down due to gravity. 312 will touch the surface of the rotating plate 309. At this time, the short teeth of the multi-gear 308 cannot restrain the short teeth of the rotating plate 309. The triangular plate 312 will drive the rotating plate 309 to rotate. The triangular plate 312 will continue to slide back to its original position. The rotated rotating plate 309 will be bounced back to its original position by the first torsion spring. In this way, the multi-gear 308 can be lifted and rotated clockwise a little bit each time the stirring plate 206 rotates. The rotation of the multi-gear 308 will drive the external gear 310 to rotate. When the external gear 310 is driven to rotate continuously, it will push the large gear 311 to rotate clockwise. The rotation of the large gear 311 will drive the outer long rod 317 to rotate. The outer long rod 317 will continue to rotate until it pushes the L-shaped rod 314 to move. In this way, the multi-gear rotation transmission can be achieved. The quicklime and water are thoroughly mixed. As the L-shaped rod 314 moves, it pushes the No. 6 spring. Simultaneously, the water passage on the surface of the L-shaped rod 314 moves to the outlet hole, connecting it to the water passage. The solution in the container flows out through the outlet hole into the sedimentation tank 1. Combined with the rotation of the fan blade 201, this fully dissolves the hexafluoroisopropanol wastewater. As the stirring plate 206 continues to rotate, it squeezes the round protrusion 307, transmitting power to the outer rod 317, moving it away from the L-shaped rod 314. The L-shaped rod 314 is then pushed back to its original position. The L-shaped rod 314, being pushed, moves the water passage to one side. As the water passage moves away, the outlet hole closes, allowing the next round of mixing to continue. Through the small vertical plate 313, the rotation of the rotating plate 309 further enhances the effect.The rotating plate 309 pushes the small vertical plate 313 backward, which compresses the second spring. This movement of the small vertical plate 313 then moves the clamping plate 315, which in turn moves the inner rotating wheel 316 by a certain angle. After the rotating plate 309 moves away from the small vertical plate 313, the second spring pushes the small vertical plate 313 back to its original position. The small vertical plate 313 then moves again, causing the clamping plate 315 to move. The reverse movement of the clamping plate 315 causes the inner rotating wheel 316 to move in the opposite direction by a certain angle. This ensures that with every two rotations of the stirring plate 206, the inner rotating wheel 316 rotates slightly to the left and right, thus thoroughly mixing the powder deposited in the dispensing hole with the water.

[0023] Please see Figure 1 - Figure 11 Based on the above embodiments, in another embodiment of the present invention, one end of a dosing shell 4 is fixedly connected to the top of the inner wall of the sedimentation tank 1, and the other end of the dosing shell 4 is fixedly connected to the top of the stirring container 3. An upper protruding rod 407 is slidably connected to the inner wall of the dosing shell 4, a connecting column 402 is fixedly connected to the bottom of the upper protruding rod 407, a lower circular block 403 is fixedly connected to the bottom of the connecting column 402, and a rotating support rod 404 is fixedly connected to the circumferential surface of the connecting column 402. Four rotating support rods 404 are provided, and a notch plate 405 is rotatably connected to the inner wall of the rotating support rod 404. A vertical rotating plate 401 is rotatably connected to the inner wall of the rotating support rod 404. The notch plate 405 and the vertical rotating plate... Two notched plates 405 and vertical rotating plates 401 are provided, symmetrically arranged around the center point of the connecting column 402. A rubber plate 408 is fixedly connected between the surface of the notched plate 405 and the surface of the vertical rotating plate 401. A beveled circular plate 406 is fixedly connected to the inner wall of the dosing shell 4. The surface of the beveled circular plate 406 is provided with a slope. The top of the notched plate 405 and the vertical rotating plate 401 is provided with a slope. The upper protruding rod 407 is raised so that the quicklime at the bottom of the storage tank 301 slides into the dosing shell 4 and falls onto the top of the lower circular block 403 and the surface of each plate. In this way, when adding medicine, the water vapor in the mixing container 3 will be blocked below the channel and cannot enter the storage tank 301.

[0024] A short flat groove is provided on the surface of the lower round block 403. An air valve 410 is fixedly connected to the top of the stirring container 3. A blow pipe 411 is fixedly connected to the bottom of the air valve 410. An air pipe is provided on the top of the air valve 410. A small cylinder 409 is slidably connected to the inner wall of the dosing shell 4. A short rod is provided on the surface of the small cylinder 409. A lower rotating plate 413 is rotatably connected to the surface of the stirring plate 206. A rubber block 414 is fixedly connected to the surface of the lower rotating plate 413. An upper lifting plate 412 is slidably connected to the inner wall of the stirring plate 206. Through the small cylinder 409, the air valve 410 and the blow pipe 411, air is blown on the powder during the falling process to increase the falling range of the powder. If it is not blown away, the powder will fall in one position, making the contact area of ​​the powder smaller and prolonging the time for the powder to dissolve.

[0025] The bottom of the lower circular block 403 is located above the top motion trajectory of the stirring plate 206. The inclined surfaces of the vertical rotating plate 401 and the notch plate 405 are located above the inclined surface motion trajectory of the inclined circular plate 406. The inclined surface of the inclined circular plate 406 will squeeze and push the vertical rotating plate 401 and the notch plate 405 outward. The control end of the lower blowpipe 411 is located above the short rod motion trajectory of the small cylinder 409. A No. 3 spring is provided between the surface of the small cylinder 409 and the surface of the air valve 410. The No. 3 spring can continuously push the small cylinder 409. The air valve 41... The surface of the 0 is located on the short flat groove movement trajectory of the lower circular block 403. A fourth spring is provided between the top of the stirring plate 206 and the bottom of the lifting plate 412. The fourth spring will continuously push the stirring plate 206 to move upward. The surface of the rubber block 414 is located on the bottom movement trajectory of the lifting plate 412. The surface of the lifting plate 412 is located on the bottom movement trajectory of the lower circular block 403. A second torsion spring is provided between the inner wall of the rotating support rod 404 and the surface of the notch plate 405. A third torsion spring is provided between the inner wall of the rotating support rod 404 and the surface of the vertical rotating plate 401.

[0026] The circumferential surface of the threaded rod 303 is slidably connected to the inner wall of the partition 304. A movable rod 505 is sleeved on the surface of the threaded rod 303. The movable rod 505 has an internal thread. A No. 7 spring is installed between the bottom of the movable rod 505 and the bottom of the inner wall of the mixing container 3. A water outlet 5 is fixedly connected to the top of the inner wall of the partition 304. An outer fixing frame 512 is fixedly connected to the top of the inner wall of the partition 304. One end of the upper rotating rod 503 is rotatably connected to the inner wall of the outer fixing frame 512. One end of the lower telescopic rod 504 is rotatably connected to the inner wall of the movable rod 505. The other end of the lower telescopic rod 504 is rotatably connected to the other end of the upper rotating rod 503. A medicine dispensing pipe 501 is fixedly connected to the bottom of the clamping plate 315. The surface of the medicine dispensing pipe 501 is located in the inner wall of the movable rod 505. The upper rotating rod 503 drives the medicine dispensing pipe 501 to move downward and extend into the wastewater of the sedimentation tank 1. In this way, the lime slurry is discharged from underwater and will not generate a large amount of foam due to falling from a height and impacting the liquid surface.

[0027] A water outlet hole is provided on the surface of the partition 304. One end of the outer branch pipe 502 is fixedly connected to the bottom of the partition 304, and the other end of the outer branch pipe 502 is fixedly connected to the surface of the water outlet head 5. A push rod 506 is slidably connected to the inner wall of the sedimentation tank 1. The surface of the push rod 506 is provided with an inclined surface. A small roller is provided on the inner wall of the moving rod 505. The inclined surface of the push rod 506 is located on the movement trajectory of the small roller of the moving rod 505. A flow intercepting plate 507 is slidably connected to the surface of the partition 304. The surface of the push rod 506 is fixedly connected to the surface of the flow intercepting plate 507. A No. 5 spring is provided between the surface of the sedimentation tank 1 and the surface of the push rod 506. A push-pull plate 508 is slidably connected to the top of the inner wall of the stirring container 3. The surface of the push-pull plate 508 is fixedly connected to the surface of the push rod 506. The bottom of the second container 203 is fixed. One end of the outlet pipe 510 is connected, and the other end of the outlet pipe 510 is fixedly connected to the top of the mixing container 3. A movable column 509 is slidably connected to the inner wall of the outlet pipe 510. The bottom of the movable column 509 contacts the top of the push-pull plate 508. A water flow groove is provided on the surface of the movable column 509. A support block is provided on the surface of the movable column 509. A control valve 511 is fixedly connected to the top of the second container 203. A control end is provided on the surface of the control valve 511. The control end of the control valve 511 is located in the inner wall of the push rod 506. When the push rod 506 moves forward, it drives the intercepting plate 507 to move, opening the water outlet on the partition 304. This allows a certain amount of clean water to be discharged into the mixing container 3 after the medicine is discharged, which is used to clean the residual medicine in the container. Then the clean water flows through the water outlet to the outlet pipe 510.

[0028] In this embodiment, during operation: the stirring plate 206 rotates, and its top presses against the lifting rod 207, pushing the lifting rod 207 upward along the first container 202. This upward movement of the first container 202 causes its top to tilt upward, allowing a measured amount of water to gradually flow into the stirring container 3. As the stirring plate 206 moves away, the water presses against the lifting rod 207, causing it to move downward and block the passage. Simultaneously, the stirring plate 206 presses against the lower circular block 403, pushing it upward. This upward movement of the lower circular block 403 pushes the connecting column 402 upward, which in turn pushes the upper protruding rod 407 upward. Simultaneously, the upward movement of the connecting column 402 drives the rotating support rod 404 upward. The upward rotation of the support rod 404 causes the notched plate 405 and the vertical rotating plate 401 to move upward. As they move upward, their inclined surfaces come into contact with the inclined surface of the inclined circular plate 406. The inclined surface of the circular plate 406 pushes the vertical rotating plate 401 and the notched plate 405 to rotate, causing them to flip outward. This outward flip pulls and opens the rubber plate 408, blocking the bottom gap. Simultaneously, the upward tilting of the upper protrusion 407 allows the quicklime in the storage tank 301 to slide through the bottom of the tilted upper protrusion 407 into the inner wall of the dosing shell 4. The quicklime falls onto the top of the lower circular block 403 and the surface of the vertical rotating plate 401 and the notched plate 405. Then, the stirring plate 206 moves away... After the lower circular block 403 is removed, it will fall due to gravity. This fall will cause the connecting column 402 to fall, which in turn will cause the rotating support rod 404 to move. The rotating support rod 404 will then cause the vertical rotating plate 401 and the notched plate 405 to move downwards. As they move downwards, they will move away from the inclined surface of the inclined circular plate 406. Once they are away from the restriction of the inclined circular plate 406, the second and third torsion springs installed on the vertical rotating plate 401 and the notched plate 405, along with the rotating support rod 404, will pull them back to their original positions. After the vertical rotating plate 401 and the notched plate 405 return to their original positions, the quicklime will be released from its restriction and will slide down the surface of the lower circular block 403. Simultaneously, the connecting column 402 will pull down the upper protrusion rod 407, causing it to block the channel and prevent moisture from entering. The quicklime flows into the storage tank 301 and is intermittently added via the rotation of the stirring plate 206. The rotation of the stirring plate 206 further agitates the solution. Through the air valve 410, the third spring pushes the small cylinder 409 to move towards the surface of the lower circular block 403. The small cylinder 409 is constrained by the surface of the lower circular block 403. With each up-and-down movement of the lower circular block 403, it moves the short flat groove. After the short flat groove reaches the surface of the small cylinder 409, the third spring pushes the small cylinder 409 into contact with the short flat groove. The movement of the small cylinder 409 causes the short rod to move away, triggering the signal terminal of the air valve 410. Subsequently, the air valve 410 opens the channel, and gas is sprayed down into the blowpipe 411 along the air valve 410.The lower blower 411 blows out, and the falling quicklime is dispersed by the high-pressure gas blown out by the lower blower 411, allowing the quicklime to mix better with the water surface. The falling of the lower round block 403 will cause the short flat trough to move downward. The downward movement of the short flat trough will squeeze the small cylinder 409 back to its original position. The small cylinder 409 will squeeze the No. 3 spring, and the short rod of the small cylinder 409 will re-squeeze the control end of the air valve 410, which will close the channel and the gas will be shut off. Through the set upper lifting plate 412, when the stirring plate 206 rotates to the bottom of the partition 304, the upper lifting plate 412 will be pushed upward by the No. 4 spring. The upward movement of the upper lifting plate 412 will push the lower round block 403 upward. During the upward movement of the upper lifting plate 412, the bottom of the upper lifting plate 412 will contact the surface of the rubber block 414. The upper lifting plate 412 continues to move upward. The upward movement pushes the rubber block 414 outwards. Due to the multiple rubber blocks 414, when the first rubber block 414 is flipped, the fourth torsion spring will cause the lower rotating plate 413 to return to its original position. Then, the upper lifting plate 412 will touch the second rubber block 414 again, pushing the lower rotating plate 413 open again. This cycle continues until the stirring plate 206 moves the upper lifting plate 412 away from the partition 304. At this point, the upper lifting plate 412 will be squeezed downwards by the top, and the upper lifting plate 412 will compress the fourth spring again, while continuing to contact the rubber block 414 and push it, causing it to cause the lower rotating plate 413 to flip outwards again. In this way, with each rotation of the stirring plate 206, the lower rotating plate 413 flips outwards and slaps the liquid surface. The lower rotating plate 413 will slap the quicklime floating on the liquid surface into the water, allowing the quicklime and water to mix well.

[0029] The movable rod 505, along with the counter-clockwise rotation of the threaded rod 303, drives the agitator plate 206 to stir the liquid. The threaded rod 303 also drives the movable rod 505 downwards until it reaches the bottom of the threaded section. At this point, the movable rod 505 is supported and continuously compressed by a spring. This downward movement pulls the lower telescopic rod 504, causing it to extend partially. Simultaneously, the lower telescopic rod 504 pulls the upper rotating rod 503, causing it to move downwards as well. This downward movement of the upper rotating rod 503 causes its dispensing pipe 501 to move downwards along the upper rotating rod 503, allowing it to fall into the sedimentation tank 1 and stir the waste liquid. This facilitates the discharge of the chemicals. During the process, the medicine is directly discharged into the waste liquid through the medicine discharge pipe 501, preventing the generation of bubbles. After the medicine is discharged, the motor 2 rotates clockwise, which in turn drives the threaded rod 303 to rotate clockwise. As the threaded rod 303 rotates clockwise, the No. 7 spring pushes the moving rod 505 into the threaded section. The threaded rod 303 drives the moving rod 505 upward through the thread. The moving rod 505 is held at the top of the threaded section. The upward movement of the moving rod 505 pushes the lower telescopic rod 504 inward, while the lower telescopic rod 504 presses against the upper rotating rod 503, causing the upper rotating rod 503 to move upward. The upward movement of the upper rotating rod 503 lifts the medicine discharge pipe 501, keeping it away from the water surface to prevent spillage. When no chemical is added, the dosing pipe 501 remains submerged in waste liquid for an extended period, causing corrosion. Simultaneously, the small roller of the moving rod 505 contacts the inclined surface of the push rod 506. As the moving rod 505 continues to rise, it pushes the push rod 506 forward. During this movement, the push rod 506 compresses the fifth spring. This forward movement pulls the flow-stopping plate 507 and the push-pull plate 508. The movement of the flow-stopping plate 507 opens the blocked outlet, and the movement of the push-pull plate 508 releases the restriction on the movable column 509. The movable column 509 slides downwards until the support block locks the bottom of the second container 203. The water channel on the surface of the movable column 509 connects the second container 203 to the outlet pipe 510. Simultaneously, the push rod 506 pulls the control valve 511, controlling... When valve 511 is opened, a measured amount of water is released into container 203. The water flows along the water trough to the inner wall of outlet pipe 510 and finally falls onto the surface of baffle 304, thus rinsing away any residual medicine in stirring container 3. The water continues to flow through the outlet hole into outer branch pipe 502, then into outlet head 5, and from outlet head 5 down into the medicine supply pipe 501, finally flowing into the waste liquid. This process cleans the residual medicine on the inner wall of outlet head 5 and medicine supply pipe 501, preventing it from drying and clogging the channels. When the next dosing cycle begins, motor 2 rotates counterclockwise, driving the moving rod 505 downwards. The downward movement of moving rod 505 releases the restriction on push rod 506, which is then pushed back to its original position by spring number 5.As the push rod 506 returns to its original position, it drives the baffle plate 507 and the push-pull plate 508 to return as well. The return of the baffle plate 507 blocks the water outlet, and the push-pull plate 508 pushes the movable column 509 back to its original position. Simultaneously, the movement of the push rod 506 closes the control valve 511, allowing it to re-accumulate water for the next cycle.

[0030] It is understood that the technical features of the above embodiments can be combined arbitrarily. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0031] The above are merely preferred embodiments of this application, and only specifically describe the technical principles of this application. These descriptions are only for explaining the principles of this application and should not be construed as limiting the scope of protection of this application in any way. Based on this explanation, any modifications, equivalent substitutions, and improvements made within the spirit and principles of this application, as well as other specific embodiments of this application that can be conceived by those skilled in the art without creative effort, should be included within the scope of protection of this application.

Claims

1. A multi-stage wastewater treatment device for hexafluoroisopropanol production, characterized in that, include: A sedimentation tank (1) is fixedly connected to a motor (2) at the top. A stirring container (3) is fixedly connected to the top of the inner wall of the sedimentation tank (1). A partition (304) is fixedly connected to the inner wall of the stirring container (3). A medicine storage tank (301) is fixedly connected to the top of the sedimentation tank (1). A first container (202) is fixedly connected to the top of the sedimentation tank (1). An upward lifting rod (207) is slidably connected to the inner wall of the first container (202). A rotating rod (204) is fixedly connected to the output end of the motor (2). A fan blade (201) is fixedly connected to the circumferential surface of a rotating rod (204). A belt (205) is driven to the rotating rod (204). A transmission rod (302) is driven to the inner wall of the belt (205). A threaded rod (303) is fixedly connected to the bottom of the transmission rod (302). An agitator plate (206) is fixedly connected to the circumferential surface of the threaded rod (303). A round protrusion (307) is slidably connected to the inner wall of the sedimentation tank (1). Roller columns are provided on the surface of the round protrusion (307). The surface of the sedimentation tank (1) is fixedly connected to... An outer shell (306) is attached, and a triangular plate (312) is slidably connected to the surface of the outer shell (306). The surface of the triangular plate (312) is provided with an inclined surface. A gear support plate (305) is fixedly connected to the surface of the sedimentation tank (1). Multiple gears (308) are rotatably connected to the surface of the gear support plate (305). Multiple teeth are provided on the surface of the multiple gears (308). Short blocks are provided on the surface of the teeth. A rotating plate (309) is rotatably connected to the inner wall of the short blocks. Short, thin blocks are provided on the surface of the rotating plate (309). An external gear (310) is fixedly connected to the surface of the multi-gear (308), and a large gear (311) is rotatably connected to the surface of the gear support plate (305). The large gear (311) meshes with the external gear (310). An outer long rod (317) is fixedly connected to the surface of the large gear (311). A medicine outlet hole is opened on the surface of the partition plate (304). A transverse groove is opened on the surface of the partition plate (304). An L-shaped rod (314) is slidably connected in the transverse groove of the partition plate (304). A water passage hole is opened on the surface of the L-shaped rod (314).

2. The multi-stage wastewater treatment equipment for hexafluoroisopropanol production according to claim 1, characterized in that, The inner wall of the L-shaped rod (314) is slidably connected to a small vertical plate (313), and a clamping plate (315) is fixedly connected to the left side of the small vertical plate (313). The inner wall of the partition (304) is rotatably connected to an inner rotating wheel (316), and the surface of the inner rotating wheel (316) is slidably connected to the inner wall of the clamping plate (315).

3. The multi-stage wastewater treatment equipment for hexafluoroisopropanol production according to claim 2, characterized in that, The sedimentation tank (1) is equipped with a bottom support frame. The bottom of the lifting rod (207) is located above the top movement trajectory of the stirring plate (206). The surface of the round protrusion (307) is located above the surface movement trajectory of the stirring plate (206). The inclined surface of the triangular plate (312) is located above the movement trajectory of the roller column. A No. 1 spring is provided between the surface of the outer rod (317) and the surface of the outer shell (306). The short block of the toothed gear contacts the thin short block of the rotating plate (309). The teeth of the multi-gear (308) are in contact with the rotating plate. A torsion spring is provided between the inner walls of the moving plate (309). The bottom of the triangular plate (312) is located on the motion trajectory of the rotating plate (309). The surface of the L-shaped rod (314) is located on the motion trajectory of the outer long rod (317). The horizontal groove is located in the middle section of the medicine outlet hole. A second spring is provided between the surface of the small vertical plate (313) and the surface of the L-shaped rod (314). The surface of the inner rotating wheel (316) is located in the medicine outlet hole. A sixth spring is provided between the surface of the L-shaped rod (314) and the surface of the stirring container (3).

4. A multi-stage wastewater treatment device for hexafluoroisopropanol production according to claim 3, characterized in that, One end of a dosing shell (4) is fixedly connected to the top of the inner wall of the sedimentation tank (1), and the other end of the dosing shell (4) is fixedly connected to the top of the stirring container (3). An upper protruding rod (407) is slidably connected to the inner wall of the dosing shell (4), and a connecting column (402) is fixedly connected to the bottom of the upper protruding rod (407). A lower circular block (403) is fixedly connected to the bottom of the connecting column (402), and a rotating support rod (404) is fixedly connected to the circumferential surface of the connecting column (402). Four rotating support rods (404) are provided, and a notch plate (405) is rotatably connected to the inner wall of the rotating support rod (404). The inner wall of the rotating support rod (404) is rotatably connected to a vertical rotating plate (401). There are two notch plates (405) and two vertical rotating plates (401). The notch plates (405) and the vertical rotating plates (401) are symmetrically arranged with respect to the center point of the connecting column (402). A rubber plate (408) is fixedly connected between the surface of the notch plate (405) and the surface of the vertical rotating plate (401). The inner wall of the dosing shell (4) is fixedly connected to a beveled circular plate (406). The surface of the beveled circular plate (406) is provided with a slope. The top of the notch plate (405) and the vertical rotating plate (401) is provided with a slope.

5. A multi-stage wastewater treatment device for hexafluoroisopropanol production according to claim 4, characterized in that, The lower circular block (403) has a short flat groove on its surface. The top of the stirring container (3) is fixedly connected to a gas valve (410). The bottom of the gas valve (410) is fixedly connected to a lower blow pipe (411). The top of the gas valve (410) is provided with a gas pipe. The inner wall of the dosing shell (4) is slidably connected to a small cylinder (409). The surface of the small cylinder (409) is provided with a short rod. The surface of the stirring plate (206) is rotatably connected to a lower rotating plate (413). The surface of the lower rotating plate (413) is fixedly connected to a rubber block (414). The inner wall of the stirring plate (206) is slidably connected to an upper lifting plate (412).

6. A multi-stage wastewater treatment device for hexafluoroisopropanol production according to claim 5, characterized in that, The bottom of the lower circular block (403) is located above the top movement trajectory of the stirring plate (206), the inclined surfaces of the upper convex rod (407) and the rubber plate (408) are located above the inclined surface movement trajectory of the inclined circular plate (406), the control end of the lower blowpipe (411) is located above the short rod movement trajectory of the small cylinder (409), a No. 3 spring is provided between the surface of the small cylinder (409) and the surface of the air valve (410), and the surface of the air valve (410) is located in the short flat groove of the lower circular block (403). Above the moving trajectory, a No. 4 spring is provided between the top of the stirring plate (206) and the bottom of the lifting plate (412), the surface of the rubber block (414) is located above the bottom moving trajectory of the lifting plate (412), the surface of the lifting plate (412) is located above the bottom moving trajectory of the lower round block (403), a No. 2 torsion spring is provided between the inner wall of the rotating support rod (404) and the surface of the notch plate (405), and a No. 3 torsion spring is provided between the inner wall of the rotating support rod (404) and the surface of the vertical rotating plate (401).

7. A multi-stage wastewater treatment device for hexafluoroisopropanol production according to claim 6, characterized in that, The circumferential surface of the threaded rod (303) is slidably connected to the inner wall of the partition (304). A movable rod (505) is sleeved on the surface of the threaded rod (303). The movable rod (505) has an internal thread. A No. 7 spring is provided between the bottom of the movable rod (505) and the bottom of the inner wall of the mixing container (3). A water outlet (5) is fixedly connected to the top of the inner wall of the partition (304). An outer fixing frame (512) is fixedly connected to the top of the inner wall of the partition (304). One end of the upper rotating rod (503) is rotatably connected to the inner wall of the outer fixing frame (512). One end of the lower telescopic rod (504) is rotatably connected to the inner wall of the movable rod (505). The other end of the lower telescopic rod (504) is rotatably connected to the other end of the upper rotating rod (503). A medicine dispensing tube (501) is fixedly connected to the bottom of the clamp (315). The surface of the medicine dispensing tube (501) is located in the inner wall of the movable rod (505).

8. A multi-stage wastewater treatment device for hexafluoroisopropanol production according to claim 7, characterized in that, The partition (304) has water outlet holes on its surface. One end of the outer branch pipe (502) is fixedly connected to the bottom of the partition (304), and the other end of the outer branch pipe (502) is fixedly connected to the surface of the water outlet (5). The inner wall of the sedimentation tank (1) is slidably connected to a push rod (506). The surface of the push rod (506) is provided with an inclined surface. The inner wall of the moving rod (505) is provided with a small roller. The inclined surface of the push rod (506) is located on the movement trajectory of the small roller of the moving rod (505). The surface of the partition (304) is slidably connected to a flow interceptor (507). The surface of the push rod (506) is fixedly connected to the surface of the flow interceptor (507). A No. 5 spring is provided between the surface of the sedimentation tank (1) and the surface of the push rod (506). The top of the inner wall of the stirring container (3) is slidably connected to a flow interceptor (507). A push-pull plate (508) is connected to the second container (203). The surface of the push-pull plate (508) is fixedly connected to the surface of the push rod (506). One end of the water outlet pipe (510) is fixedly connected to the bottom of the second container (203). The other end of the water outlet pipe (510) is fixedly connected to the top of the stirring container (3). A movable column (509) is slidably connected to the inner wall of the water outlet pipe (510). The bottom of the movable column (509) is in contact with the top of the push-pull plate (508). A water channel is provided on the surface of the movable column (509). A support block is provided on the surface of the movable column (509). A control valve (511) is fixedly connected to the top of the second container (203). A control end is provided on the surface of the control valve (511). The control end of the control valve (511) is located in the inner wall of the push rod (506).

9. A production process for a multi-stage wastewater treatment system for hexafluoroisopropanol production, using the multi-stage wastewater treatment system for hexafluoroisopropanol production as described in claim 8, characterized in that... Includes the following steps: Step 1: Turn on the motor (2). The motor (2) drives the rotating rod (204) to rotate. The rotation of the rotating rod (204) drives the fan blade (201) to rotate. The rotation of the fan blade (201) stirs the hexafluoroisopropanol wastewater. At the same time, the rotation of the rotating rod (204) drives the belt (205) to rotate. The rotation of the belt (205) drives the transmission rod (302) to rotate. The rotation of the transmission rod (302) drives the threaded rod (303) to rotate. The rotation of the threaded rod (303) drives the agitator plate (206) to rotate. Quicklime and water are placed between the inner wall of the mixing container (3) and the top of the partition (304). The stirring plate (206) is rotated to fully stir the mixture. With each rotation of the stirring plate (206), the round protrusion (307) is squeezed once. The round protrusion (307) is squeezed and slides along the inner wall of the sedimentation tank (1). The sliding of the round protrusion (307) will compress the No. 1 spring. The round protrusion (307) will drive the roller column on the surface. The roller column will squeeze the inclined surface of the triangular plate (312). The triangular plate (312) will be squeezed and move upward. Step 2: The upward movement of the triangular plate (312) will cause the teeth of the multi-gear (308) to rotate. However, due to the short blocks on the surface of the multi-gear (308) and the thin short blocks on the surface of the rotating plate (309), the thin short blocks of the rotating plate (309) will be stuck by the short blocks of the multi-gear (308) and cannot rotate. Then, the stirring plate (206) moves away from the surface of the round bump (307), and the round bump (307) will be popped out by the first spring. The round bump (307) will drive the roller column to move, and the roller column will move away from the triangular plate (312). The triangular plate (312) will slide down with gravity and touch the surface of the rotating plate (309). At this time, the short blocks of the multi-gear (308) cannot restrict the thin short blocks of the rotating plate (309). The plate (312) will drive the rotating plate (309) to rotate, and the triangular plate (312) will continue to slide back to its original position. The rotating plate (309) will be bounced back to its original position by the first torsion spring. In this way, the multi-gear (308) can be lifted and rotated clockwise a little by rotating the stirring plate (206) once. The rotation of the multi-gear (308) will drive the external gear (310) to rotate. When the external gear (310) is driven to rotate continuously, it will push the large gear (311) to rotate clockwise. The rotation of the large gear (311) will drive the outer long rod (317) to rotate. The outer long rod (317) will continue to rotate until it pushes the L-shaped rod (314) to move. In this way, the quicklime and water can be fully mixed evenly through the rotation transmission of the multi-gear. Step 3: As the L-shaped rod (314) moves, it will push the No. 6 spring. At the same time, the water passage hole on the surface of the L-shaped rod (314) will move to the medicine outlet hole. At this time, the medicine outlet hole and the water passage hole will be interconnected. The medicine in the container will start to flow out through the medicine outlet hole and flow into the sedimentation tank (1). With the rotation of the fan blade (201), the hexafluoroisopropanol wastewater will be fully dissolved. As the stirring plate (206) continues to rotate and squeeze the round protrusion (307), it will be transmitted to the outer rod (317) to move away from the L-shaped rod (314). The L-shaped rod (314) will then be pushed back to its original position. The L-shaped rod (314) being pushed will move the water passage hole to one side. As the water passage hole moves away, the channel of the medicine outlet hole will be closed, so that the next round of stirring can continue. Step 4: With the rotation of the rotating plate (309), the small vertical plate (313) will be pushed backward by the small vertical plate (313) through the small vertical plate (313). The movement of the small vertical plate (313) will compress the second spring. The movement of the small vertical plate (313) will drive the clamping plate (315) to move. The movement of the clamping plate (315) will drive the inner rotating wheel (316) to move at a certain angle. After the rotating plate (309) moves away from the small vertical plate (313), the second spring will push the small vertical plate (313) back to its original position. The small vertical plate (313) moves again and drives the clamping plate (315) to move. The reverse movement of the clamping plate (315) will drive the inner rotating wheel (316) to move in the opposite direction at a certain angle. In this way, the stirring plate (206) can rotate left and right once every two rotations through the transmission of the inner rotating wheel (316). This way, the powder deposited in the medicine outlet hole can also be fully stirred with water.

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