Multistage treatment system for vaporization and separation of high-concentration chemical waste liquid

Abstract

This invention discloses a multi-stage treatment system for the vaporization and separation of high-concentration chemical waste liquid, comprising: a support base, an evaporator fixedly connected to the top of the support base, a positioning plate fixedly connected to the bottom of the evaporator, a heat exchange plate fixedly connected to the top of the positioning plate, heat exchange tubes passing through the heat exchange plate, and the free ends of both heat exchange tubes extending to the outside of the evaporator; a support frame, fixedly connected to one side of the top of the support base, with gas-liquid separators fixedly connected to both ends of the support frame, a steam transmission pipe fixedly connected between the gas output end of the gas-liquid separator and the output end of the condenser, and a medium transmission pipe fixedly connected to the gas outlet end of the condenser. This invention relates to the field of chemical waste liquid treatment technology. Through the overall structural coordination, this invention can effectively treat chemical steam in stages, and the treated steam can be used as a heat exchange medium for chemical waste liquid, greatly reducing overall energy consumption.

Description

Technical Field

[0001] This invention relates to the field of chemical waste liquid treatment technology, specifically a multi-stage treatment system for high-concentration chemical waste liquid vaporization separation. Background Technology

[0002] High-concentration chemical waste liquid refers to industrial wastewater generated during chemical production processes that contains high concentrations of pollutants such as organic matter, inorganic salts, and heavy metals. This waste liquid typically exhibits high toxicity, high COD values, and poor biodegradability, posing a significant environmental impact. Therefore, before discharging high-concentration chemical waste liquid, it is necessary to use a treatment system to reduce the pollutant concentration to meet discharge standards. However, traditional processing systems still have the following problems when applied: 1. Often, the steam produced by evaporating chemical waste liquid is directly fed into a gas-liquid separator. However, since the steam contains relatively heavy liquid droplets, it is difficult to efficiently collect the liquid droplets in the steam by relying solely on the gas-liquid separator.

[0003] 2. The treated gas lacks effective utilization measures and is directly discharged, which easily leads to energy waste; 3. For materials that are prone to scaling, have high viscosity, or have a high boiling point rise, the lack of effective forced circulation measures during heat exchange can easily affect the heat exchange effect of subsequent materials.

[0004] To address these issues, the present invention provides a multi-stage treatment system for the vaporization and separation of high-concentration chemical waste liquid. Summary of the Invention

[0005] To address the shortcomings of existing technologies, this invention provides a multi-stage treatment system for the vaporization and separation of high-concentration chemical waste liquid, thus solving the aforementioned problems.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a multi-stage treatment system for the vaporization and separation of high-concentration chemical waste liquid, comprising: A support base is provided, with an evaporator fixedly connected to its top end. A positioning plate is fixedly connected to the bottom end of the evaporator, and a heat exchange plate is fixedly connected to the top end of the positioning plate. A heat exchange tube is inserted inside the heat exchange plate, and the free ends of the two heat exchange tubes extend to the outside of the evaporator. A support frame is fixedly connected to one side of the top of the support base. Gas-liquid separators are fixedly connected to both ends of the support frame. A steam transmission pipe is fixedly connected between the gas output end of the gas-liquid separator and the output end of the condenser. A medium transmission pipe is fixedly connected to the gas outlet end of the condenser. The compressor is fixedly connected to the top of the support base, and the end of the medium transmission pipe away from the condenser is connected to the input end of the compressor. The output end of the compressor is fixedly connected to a gas guide pipe, and the end of the gas guide pipe away from the compressor is connected to one of the free ends of the heat exchange tube. A separation assembly, which is installed between the evaporator and the gas-liquid separator, is used to form a preliminary separation of the steam exiting the evaporator.

[0007] Preferably, the separation component includes: A separator is fixedly connected to the top of a support base. A hydrocyclone is fixedly connected to the bottom of the separator. A mounting plate is fixedly connected to the top of an evaporator. The end of the mounting plate away from the evaporator is fixedly connected to the input end of the hydrocyclone. A mounting plate is fixedly connected to the middle of the inside of the separation tank. A guide tube is fixedly connected to the middle of the mounting plate. A support plate is fixedly connected to the top of the inside of the guide tube. A support shaft is vertically rotatably connected to the middle of the support plate. A blade is fixedly connected to the top of the support shaft. A reversing cylinder is fixedly connected to the top of the inside of the separator. Multiple reversing baffles are fixedly connected to the inside of the reversing cylinder at an incline. The reversing baffles are used to change the direction of steam rise. An air supply pipe is fixedly connected to the top of the separator tank, and the end of the air supply pipe away from the separator tank is fixedly connected to the gas input end of the gas-liquid separator. A circulation assembly, which is assembled between the positioning plate and the separation tank, is used to form a forced circulation of the solution in the evaporator and the separation tank; A settling assembly is mounted on the top of the outside of the separator tank and is used to settle the droplets at the reversing baffle in conjunction with the reversing cylinder.

[0008] Preferably, the circulation component includes: A positioning plate is fixedly connected between the evaporator and the separation tank. An external pump is fixedly connected to the top of the positioning plate, and a solution transfer pipe is fixedly connected to the output end of the external pump. A spray pipe is rotatably connected to the top of the inside of the evaporator, and the end of the solution transfer pipe away from the external pump is rotatably connected to one end of the spray pipe. The other end of the spray pipe is fixedly connected to a conduction plate, and a linkage groove is opened in the middle of the conduction plate. An external inlet pipe is fixedly connected between the evaporator and the separator. The input end of the external pump is fixedly connected to a transfer pipe, and the end of the transfer pipe away from the external pump is connected to the external inlet pipe. A flow control component, which is used to switch the type of solution being transferred by the transfer tube.

[0009] Preferably, the flow control component includes: Two drive shafts are vertically rotatably connected to both ends of the top of the outer tube, and a sealing plate is fixedly connected to one end of the drive shaft inside the outer tube. Two transmission plates are fixedly connected to the top ends of two transmission shafts, and a linkage plate is rotatably connected between one end of the two transmission plates. A positioning seat is fixedly connected to the top of one end of the outer tube. A drive motor is fixedly connected to the top of the positioning seat. A drive bevel gear is fixedly connected to the output end of the drive motor and the outer side of one of the drive shafts, and the two drive bevel gears are meshed together.

[0010] Preferably, the settling assembly includes: An assembly box is fixedly connected to the top of the outside of the separation tank. A displacement frame is slidably connected to one end of the assembly box. A striking plate is fixedly connected to one end of the displacement frame inside the assembly box. An assembly rod A is fixedly connected to one end of the displacement frame outside the assembly box. The placement seat is fixedly connected between the evaporator and the separator. One side of the assembly rod A is rotatably connected to a rotating shaft. An adjusting plate A is fixedly connected to the outside of the rotating shaft. An adjusting groove is opened in the middle of the adjusting plate A, and the assembly rod A is also movably connected inside the adjusting groove. A drive motor is fixedly connected to the middle of the top of the positioning seat. An eccentric plate is fixedly connected to the output end of the drive motor. An assembly rod B is fixedly connected to the end of the eccentric plate away from the drive motor. The assembly rod B is also movably connected inside the adjustment channel. Adjusting plate B is fixedly connected to the end of the rotating shaft away from the positioning seat. The end of the adjusting plate B away from the rotating shaft is fixedly connected to an assembly rod C, and the assembly rod C is also movably connected inside the linkage slot.

[0011] Preferably, a discharge pipe is fixedly connected to the bottom of the outer side of the separation tank, and a discharge valve is provided on the discharge pipe.

[0012] Preferably, a collision bed is fixedly connected to the lower middle part of the separation tank, and the collision bed is provided with low-resistance structured packing.

[0013] Preferably, a plurality of guide pipes are fixedly connected to the middle of the outer side of the separation tank, and the bottom end of each guide pipe extends around the collision bed into the interior of the separation tank.

[0014] Preferably, a rotary joint is provided at one end of the solution transfer pipe and the spray pipe that are close to each other, and the solution transfer pipe and the spray pipe are connected by the rotary joint.

[0015] Preferably, the bottom end of the spray pipe is provided with a plurality of spray holes, and each spray hole is provided with a nozzle.

[0016] Beneficial effects This invention provides a multi-stage treatment system for the vaporization and separation of high-concentration chemical waste liquid. Compared with existing technologies, it has the following advantages: This high-concentration chemical waste liquid vaporization separation multi-stage treatment system, through its overall structural coordination, can effectively treat chemical vapors stage by stage, and the treated vapors can be used as a heat exchange medium for chemical waste liquids, greatly reducing overall energy consumption.

[0017] This high-concentration chemical waste liquid vaporization separation multi-stage treatment system, through the structural coordination of the separation components, can achieve the preliminary separation of most of the heavier liquids and steam before the steam is sent to the gas-liquid separator, allowing the liquid phase to fall back into the liquid phase, effectively reducing the separation pressure of the gas-liquid separator and making the steam separation more thorough; This high-concentration chemical waste liquid vaporization separation multi-stage treatment system, through the structural coordination of the circulation components, enables the solution in the evaporator and separation tank to flow at high speed inside the evaporator, forming a forced circulation of the solution. This makes it suitable for materials that are prone to scaling, have high viscosity, or have a high boiling point. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2 This is a side view of the present invention; Figure 3 This is a schematic diagram of the internal structure of the separation tank of the present invention; Figure 4 This is a schematic diagram of the assembly structure of the reversing baffle of the present invention; Figure 5 This is a schematic diagram of the assembly structure of the blade of the present invention; Figure 6 This is a schematic diagram of the assembly structure of the external pump of the present invention; Figure 7 This is a schematic diagram of the internal structure of the external lead tube of the present invention; Figure 8 This is a schematic diagram of the internal structure of the assembly box of the present invention.

[0019] In the diagram: 1. Support base; 2. Evaporator; 3. Positioning plate; 4. Heat exchange plate; 5. Heat exchange tube; 6. Support frame; 7. Gas-liquid separator; 8. Condenser; 9. Steam transfer pipe; 10. Medium transfer pipe; 11. Compressor; 12. Gas guide pipe; 13. Separation assembly; 14. Separation tank; 15. Hydrocyclone; 16. Mounting plate; 17. Flow guide tube; 18. Support plate; 19. Support shaft; 20. Blade; 21. Reversing cylinder; 22. Reversing baffle; 23. Gas delivery pipe; 24. Circulation assembly; 25. Settling assembly; 26. Positioning plate; 27. Positioning lug; 28. External pump; 29. ​​Solvent 30. Liquid transfer pipe; 31. Spray pipe; 32. Conducting plate; 33. Linkage channel; 34. External lead pipe; 35. Drive shaft; 36. Sealing plate; 37. Linkage plate; 38. Positioning seat; 39. Drive motor; 40. Drive bevel gear; 41. Transfer pipe; 42. Assembly box; 43. Displacement frame; 44. Striking plate; 45. Assembly rod A; 46. Placement seat; 47. Rotating shaft; 48. Adjusting plate A; 49. Adjusting channel; 50. Drive motor; 51. Eccentric plate; 52. Assembly rod B; 53. Adjusting plate B; 54. Assembly rod C; 55. Collision bed; 56. Guide pipe. Detailed Implementation

[0020] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0021] Example 1: Please see Figure 1-8 A multi-stage treatment system for the vaporization and separation of high-concentration chemical waste liquid, comprising: The support base 1 has an evaporator 2 fixedly connected to its top end. The bottom of the evaporator 2 is fixedly connected to a positioning plate 3. The top of the positioning plate 3 is fixedly connected to a heat exchange plate 4. Heat exchange tubes 5 are inserted inside the heat exchange plate 4, and the free ends of the two heat exchange tubes 5 extend to the outside of the evaporator 2. Support frame 6 is fixedly connected to one side of the top of the support base 1. Gas-liquid separators 7 are fixedly connected to both ends of the support frame 6. A steam transmission pipe 9 is fixedly connected between the gas output end of the gas-liquid separator 7 and the output end of the condenser 8. A medium transmission pipe 10 is fixedly connected to the gas outlet end of the condenser 8. The compressor 11 is fixedly connected to the top of the support base 1, and the end of the medium transmission pipe 10 away from the condenser 8 is connected to the input end of the compressor 11. The output end of the compressor 11 is fixedly connected to the gas guide pipe 12, and the end of the gas guide pipe 12 away from the compressor 11 is connected to one of the free ends of the heat exchange tube 5. Separation component 13 is assembled between evaporator 2 and gas-liquid separator 7 to form preliminary separation of the steam discharged from evaporator 2; In this embodiment, the heat exchange tube 5 is a self-cleaning heat exchange tube with a surface roughness of Ra≤0.8μm. Regular backflushing improves its vaporization efficiency. In this embodiment, a feed pipe is fixedly connected to the top of the outer side of the evaporator 2, which is used to cooperate with the external feed pump to send the chemical waste liquid into the evaporator 2. In this embodiment, the gas-liquid separator 7 is a device for separating gas and liquid mixtures. Its main function is to remove liquid droplets from the gas or gas bubbles from the liquid to ensure normal system operation and product quality. It is a mature existing technology and will not be described in detail here. In other embodiments of this invention, a vacuum pump may also be provided at the condenser 8 to work with the pipeline to extract some of the non-condensable gases from the steam transmission pipe 9. In this embodiment, a heating component is also provided at the gas guide pipe 12. The heating component can be an electric heating wire. The heat generated by the electric heating wire during operation will heat up the gas entering the heat exchange tube 5, thereby ensuring the heat exchange effect between the steam and the solution in the support base 1. In this embodiment, the heat exchange tube 5 can be serpentine. By utilizing the shape characteristics of the heat exchange tube 5, the flow path of the steam can be extended to a greater extent, allowing the steam to exchange heat more fully with the solution in the support base 1. In this embodiment, the separation component 13 includes: Separator 14 is fixedly connected to the top of support base 1. A hydrocyclone 15 is fixedly connected to the bottom of the interior of separator 14. A mounting plate 16 is fixedly connected to the top of evaporator 2. The end of mounting plate 16 away from evaporator 2 is fixedly connected to the input end of hydrocyclone 15. A mounting plate 16 is fixedly connected to the middle of the inside of the separator tank 14. A guide tube 17 is fixedly connected to the middle of the mounting plate 16. A support plate 18 is fixedly connected to the top of the inside of the guide tube 17. A support shaft 19 is vertically rotatably connected to the middle of the support plate 18. A blade 20 is fixedly connected to the top of the support shaft 19. The reversing cylinder 21 is fixedly connected to the top of the inside of the separator 14. Multiple reversing baffles 22 are fixedly connected to the inside of the reversing cylinder 21 at an incline. The reversing baffles 22 are used to change the direction of steam rise. The gas supply pipe 23 is fixedly connected to the top of the separator 14, and the end of the gas supply pipe 23 away from the separator 14 is fixedly connected to the gas input end of the gas-liquid separator 7. The circulation component 24 is assembled between the positioning plate 3 and the separation tank 14 to form a forced circulation of the solution in the evaporator 2 and the separation tank 14. Settling assembly 25 is mounted on the top of the outside of the separator 14 and is used to cooperate with the reversing cylinder 21 to settle the droplets at the reversing baffle 22. In this embodiment, the interiors of the evaporator 2, gas-liquid separator 7, condenser 8, and separation tank 14 are all coated with Ti-Zr alloy / silicon carbide composite material. Through the characteristics of Ti-Zr alloy / silicon carbide composite coating material, the corrosion resistance of the equipment can be effectively improved and the service life of the equipment can be extended. In this embodiment, the guide tube 17 can be funnel-shaped. Through the shape characteristics of the guide tube 17, the steam can be concentrated and pass through the blade 20, causing the blade 20 to be forced to rotate, thereby enhancing centrifugal separation. In this embodiment, the reversing baffle 22 can be wave-shaped. Through the shape characteristics of the reversing baffle 22, the steam can repeatedly change direction when it rises. The droplets collide and grow due to inertia when they hit the surface of the reversing baffle 22, until they settle down by gravity. In this embodiment, the loop component 24 includes: Positioning plate 26 is fixedly connected between evaporator 2 and separator 14. An external pump 28 is fixedly connected to the top of positioning plate 26. A solution transfer pipe 29 is fixedly connected to the output end of external pump 28. The spray pipe 30 is rotatably connected to the top of the evaporator 2, and the end of the solution transfer pipe 29 away from the external pump 28 is rotatably connected to one end of the spray pipe 30. The other end of the spray pipe 30 is fixedly connected to the conduction plate 31, and the conduction plate 31 has a linkage groove 32 in the middle. An external inlet pipe 33 is fixedly connected between the evaporator 2 and the separator 14. The input end of the external pump 28 is fixedly connected to a transfer pipe 41, and the end of the transfer pipe 41 away from the external pump 28 is connected to the external inlet pipe 33. Flow control component, used to switch the type of solution transferred by transfer tube 41; In this embodiment, a positioning ear 27 is fixedly connected to the top of the positioning plate 26, and the external pump 28 is connected to the top of the positioning ear 27 by bolts. In this embodiment, a discharge pipe is fixedly connected to the bottom of the outer side of the separator 14, and a discharge valve is provided on the discharge pipe. More specifically, by setting up the discharge pipe and discharge valve, the solution can be conveniently drawn out of the separation tank 14 when the solution concentration in the separation tank 14 reaches the set requirements; In this embodiment, a collision bed 55 is fixedly connected to the lower middle part of the separation tank 14, and the collision bed 55 is provided with low-resistance structured packing. More specifically, low-resistance structured packing can be honeycomb-shaped to increase the gas-liquid contact area and collision probability, thereby promoting droplet coalescence; In other embodiments, the low-resistance structured packing can also be corrugated plate packing; In this embodiment, a plurality of guide pipes 56 are fixedly connected to the middle of the outer side of the separation tank 14, and the bottom end of each guide pipe 56 extends around the collision bed 55 into the interior of the separation tank 14. More specifically, through the setting of the guide pipe 56, the liquid received by the mounting plate 16 can be injected into the bottom of the separator 14 so that it can be extracted by the linkage channel 32. In this embodiment, a rotary joint is provided at one end of the solution transfer pipe 29 and the spray pipe 30 that are close to each other, and the solution transfer pipe 29 and the spray pipe 30 are connected by the rotary joint. More specifically, by setting up a rotary joint, the solution transfer pipe 29 can achieve effective solution transfer without affecting the rotation of the spray pipe 30; In this embodiment, the bottom end of the spray pipe 30 is provided with multiple spray holes, and each spray hole is provided with a nozzle. More specifically, the spray range of the spray pipe 30 can be increased to a greater extent by the design of the spray holes, and the solution inside the spray pipe 30 can be evenly applied to the interior of the evaporator 2 by the design of the nozzles. In this embodiment, the flow control component includes: Two drive shafts 34 are vertically rotatably connected to the two ends of the top of the outer tube 33, and a sealing piece 35 is fixedly connected to one end of the drive shaft 34 inside the outer tube 33. Two transmission plates 36 are fixedly connected to the top ends of two transmission shafts 34 respectively, and a linkage plate 37 is rotatably connected between one end of the two transmission plates 36. Positioning seat 38 is fixedly connected to the top of one end of the outer tube 33. A drive motor 39 is fixedly connected to the top of the positioning seat 38. A drive bevel gear 40 is fixedly connected to the output end of the drive motor 39 and the outer side of one of the drive shafts 34, and the two drive bevel gears 40 are meshed together. In this embodiment, the two sealing plates 35 and the two transmission plates 36 are all perpendicular to each other; In this embodiment, the outer side of the sealing plate 35 is fixedly connected with multiple sealing grooves, and a sealing ring is fixedly connected inside each sealing groove. The sealing ring and the inner wall of the outer tube 33 are in transition fit. More specifically, by setting the sealing groove, the gap between the sealing plate 35 and the external tube 33 can be sealed to prevent uncontrollable flow of the solution in the external tube 33; Example 2: Please see Figure 1-8 This embodiment provides a technical solution based on Embodiment 1: the settling component 25 includes: Assembly box 42 is fixedly connected to the top of the outside of the separation tank 14. One end of the assembly box 42 is slidably connected to a displacement frame 43. One end of the displacement frame 43 located inside the assembly box 42 is fixedly connected to a striking plate 44. One end of the displacement frame 43 located outside the assembly box 42 is fixedly connected to an assembly rod A45. The placement seat 46 is fixedly connected between the evaporator 2 and the separator 14. The mounting rod A45 is rotatably connected to one side of the rotating shaft 47. The outer side of the rotating shaft 47 is fixedly connected to the adjusting plate A48. The adjusting plate A48 has an adjusting groove 49 in the middle, and the mounting rod A45 is also movably connected inside the adjusting groove 49. The drive motor 50 is fixedly connected to the middle of the top of the positioning seat 46. The output end of the drive motor 50 is fixedly connected to the eccentric plate 51. The end of the eccentric plate 51 away from the drive motor 50 is fixedly connected to the assembly rod B52, and the assembly rod B52 is also movably connected inside the adjustment channel 49. Adjustment plate B53 is fixedly connected to the end of the rotating shaft 47 away from the positioning seat 46. The end of adjustment plate B53 away from the rotating shaft 47 is fixedly connected to the assembly rod C54, and the assembly rod C54 is also movably connected inside the linkage slot 32. In this embodiment, a support hole is provided on one side of the placement seat 46, and the rotating shaft 47 is connected to the inside of the support hole through a ball bearing; More specifically, the use of support holes and ball bearings can effectively reduce wear and tear on the rotating shaft 47 and ensure smooth rotation of the rotating shaft 47. In this embodiment, CO2 can be recovered from the condensation recovery tail gas using an amine adsorption-membrane separation coupling process for process makeup water. Furthermore, any content not described in detail in this specification is existing technology known to those skilled in the art.

[0022] Working principle: Chemical waste liquid is fed into the evaporator 2 through the feed pump, and then heat exchange steam is injected into the heat exchange tube 5 through the compressor 11 and the air guide pipe 12, which causes the heat exchange plate 4 to heat up and vaporize the chemical waste liquid in the support base 1. The vaporized steam is injected into the hydrocyclone 15 through the mounting plate 16. When the steam enters the hydrocyclone 15 tangentially, it will generate a strong centrifugal field inside the hydrocyclone 15 to separate the tiny droplets to the wall of the hydrocyclone 15 and discharge them. The gas discharged from the hydrocyclone 15 will rise inside the separator 14 and increase the gas-liquid contact area and collision probability through the characteristics of the collision bed 55, promoting droplet coalescence. The gas passing through the collision bed 55 will enter the guide tube 17. As the gas flow gathers at the top of the guide tube 17, it will drive the blades 20 through the airflow, causing the blades 20 to rotate under the support of the support shaft 19, thereby enhancing centrifugal separation. The airflow through the guide tube 17 will continue to rise into the reversing baffle 22 and flow along the path of the reversing baffle 22. Due to the structural characteristics of the reversing baffle 22, the flow direction of the gas can be changed repeatedly. The droplets collide with the surface of the reversing baffle 22 due to inertia and grow until they settle by gravity and are finally received by the mounting plate 16. The steam flow after being processed by the reversing baffle 22 will be injected into the gas-liquid separator 7 through the air supply pipe 23. Using the principles of collision, interception and centrifugal force, the gas-liquid separator 7 can efficiently remove the tiny droplets entrained in the steam and obtain relatively pure secondary steam. The steam discharged by the gas-liquid separator 7 will be injected into the condenser 8 through the steam transmission pipe 9, so that the liquid in the gas will be condensed by the condenser 8. The condensed gas will be introduced into the compressor 11 through the medium transmission pipe 10, and after being compressed by the compressor 11, it will be injected into the heat exchange tube 5 through the gas guide pipe 12 to provide heat exchange medium for the heat exchange tube 5. Furthermore, during the heat exchange process of the solution in the support base 1, the drive motor 39 can be started. With the connection of the two drive bevel gears 40, the power of the drive motor 39 can be transmitted to the drive shaft 34, causing the drive shaft 34 to drive the sealing plate 35 connected to it to rotate. Since the linkage plate 37 is connected between the two drive plates 36, when the drive plate 36 at one of the drive shafts 34 rotates, the other drive shaft 34 can be driven to rotate simultaneously by means of the linkage plate 37. When the sealing plate 35 near the evaporator 2 releases the seal on the external lead pipe 33, the other sealing plate 35 seals the end of the external lead pipe 33 near the separator 14. Since the end of the external inlet pipe 33 near the separator tank 14 is blocked by another sealing piece 35, when the external inlet pump 28 is started later, the solution in the bearing base 1 can be drawn out through the external inlet pipe 33 and injected into the spray pipe 30 through the transfer pipe 41 and the solution transfer pipe 29. Finally, it is sprayed back into the evaporator tank 2 through the spray pipe 30, which promotes the high-speed flow of the solution. It is especially suitable for materials that are prone to scaling, have high viscosity or high boiling point. Furthermore, when there is an excess of solution at the bottom of the separator 14, the drive motor 39 is started, causing the sealing plate 35 near the evaporator 2 to close, while the sealing plate 35 near the separator 14 is opened. When the positioning seat 38 is started later, the material inside the separator 14 can be extracted and injected into the bearing base 1, and then heated again to form a forced circulation of the material. Furthermore, during the operation of the reversing baffle 22, the drive motor 50 can be started to drive the eccentric plate 51 to rotate. Since the assembly rod B52 is connected inside the adjustment channel 49, when the assembly rod B52 rotates with the eccentric plate 51, the adjustment plate A48 can be driven to swing back and forth under the support of the rotating shaft 47 through the adaptive movement of the assembly rod B52 inside the adjustment channel 49. At the same time, in conjunction with the connection between the assembly rod A45 and the adjustment channel 49, when the adjustment plate A48 swings, it can drive the striking plate 44 to repeatedly strike the reversing cylinder 21 inside the assembly box 42 with the help of the displacement frame 43, causing the reversing baffle 22 to vibrate to a certain extent, so that the liquid at the reversing baffle 22 can smoothly reach the top of the mounting plate 16. With the connection between the rotating shaft 47 and the displacement frame 43, when the adjusting plate B53 rotates with the rotating shaft 47, it can repeatedly push the transmission plate 31 by means of the adaptive movement of the assembly rod C54 inside the linkage channel 32. Since the transmission plate 31 is supported by the spray pipe 30, it can change the spraying direction of the spray pipe 30 and reduce the blind spot of the spray pipe 30.

[0023] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0024] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A multi-stage treatment system for the vaporization and separation of high-concentration chemical waste liquid, characterized in that: include: A support base (1) is fixedly connected to an evaporator (2) at its top end. A positioning plate (3) is fixedly connected to the bottom end of the evaporator (2). A heat exchange plate (4) is fixedly connected to the top end of the positioning plate (3). A heat exchange tube (5) is inserted inside the heat exchange plate (4), and the free ends of the two heat exchange tubes (5) extend to the outside of the evaporator (2). Support frame (6), the support frame (6) is fixedly connected to one side of the top of the support base (1), and gas-liquid separators (7) are fixedly connected to both ends of the support frame (6). A steam transmission pipe (9) is fixedly connected between the gas output end of the gas-liquid separator (7) and the output end of the condenser (8). A medium transmission pipe (10) is fixedly connected to the gas outlet end of the condenser (8). The compressor (11) is fixedly connected to the top of the support base (1), and the end of the medium transmission pipe (10) away from the condenser (8) is connected to the input end of the compressor (11). The output end of the compressor (11) is fixedly connected to the air guide pipe (12), and the end of the air guide pipe (12) away from the compressor (11) is connected to one of the free ends of the heat exchange tube (5). Separation assembly (13), which is assembled between the evaporator (2) and the gas-liquid separator (7), is used to form a preliminary separation of the steam discharged from the evaporator (2); The separation component (13) includes: Separating tank (14), the separating tank (14) is fixedly connected to the top of the supporting base (1), the bottom of the separating tank (14) is fixedly connected to a hydrocyclone (15), the top of the evaporating tank (2) is fixedly connected to a mounting plate (16), and the end of the mounting plate (16) away from the evaporating tank (2) is fixedly connected to the input end of the hydrocyclone (15). A mounting plate (16) is fixedly connected to the middle of the inside of the separation tank (14). A guide tube (17) is fixedly connected to the middle of the mounting plate (16). A support plate (18) is fixedly connected to the top of the inside of the guide tube (17). A support shaft (19) is vertically rotatably connected to the middle of the support plate (18). A blade (20) is fixedly connected to the top of the support shaft (19). A reversing cylinder (21) is fixedly connected to the top of the inside of the separator (14). Multiple reversing baffles (22) are fixedly connected to the inside of the reversing cylinder (21) at an incline. The reversing baffles (22) are used to change the direction of steam rise. Gas supply pipe (23), the gas supply pipe (23) is fixedly connected to the top of the separator (14), and the end of the gas supply pipe (23) away from the separator (14) is fixedly connected to the gas input end of the gas-liquid separator (7); A circulation assembly (24) is assembled between the positioning plate (3) and the separation tank (14) to form a forced circulation of the solution in the evaporator (2) and the separation tank (14); Settling assembly (25), which is mounted on the top of the outside of the separator (14) and is used to cooperate with the reversing cylinder (21) to settle the droplets at the reversing baffle (22); The loop component (24) includes: Positioning plate (26), the positioning plate (26) is fixedly connected between evaporator (2) and separation tank (14), the top of the positioning plate (26) is fixedly connected to an external pump (28), and the output end of the external pump (28) is fixedly connected to a solution transfer pipe (29). Spray pipe (30) is rotatably connected to the top of the evaporator (2) and the end of the solution transfer pipe (29) away from the external pump (28) is rotatably connected to one end of the spray pipe (30). The other end of the spray pipe (30) is fixedly connected to a guide plate (31) and a linkage groove (32) is opened in the middle of the guide plate (31). An external inlet pipe (33) is fixedly connected between the evaporator (2) and the separator (14). The input end of the external pump (28) is fixedly connected to a transfer pipe (41), and the end of the transfer pipe (41) away from the external pump (28) is connected to the external inlet pipe (33). A flow control assembly, which is used to switch the type of solution transferred by the transfer tube (41); The flow control component includes: Two drive shafts (34) are vertically rotatably connected to the two ends of the top of the outer tube (33), and a sealing plate (35) is fixedly connected to one end of the drive shaft (34) inside the outer tube (33). Two transmission plates (36) are fixedly connected to the top of two transmission shafts (34). When the sealing plate (35) near the evaporator (2) releases the seal on the external lead pipe (33), the other sealing plate (35) seals the external lead pipe (33) near one end of the separator (14). A linkage plate (37) is rotatably connected between one end of the two transmission plates (36). Positioning seat (38) is fixedly connected to the top of one end of the outer tube (33). A drive motor (39) is fixedly connected to the top of the positioning seat (38). A drive bevel gear (40) is fixedly connected to the output end of the drive motor (39) and the outer side of one of the drive shafts (34). The two drive bevel gears (40) are meshed together.

2. The high-concentration chemical waste liquid vaporization separation multi-stage treatment system according to claim 1, characterized in that: The settling assembly (25) includes: Assembly box (42), the assembly box (42) is fixedly connected to the top of the outside of the separation tank (14), one end of the assembly box (42) is slidably connected to a displacement frame (43), one end of the displacement frame (43) located inside the assembly box (42) is fixedly connected to a striking plate (44), and one end of the displacement frame (43) located outside the assembly box (42) is fixedly connected to an assembly rod A (45). The placement seat (46) is fixedly connected between the evaporator (2) and the separator (14). The mounting rod A (45) is rotatably connected to a rotating shaft (47) on one side. An adjusting plate A (48) is fixedly connected to the outside of the rotating shaft (47). An adjusting groove (49) is provided in the middle of the adjusting plate A (48), and the mounting rod A (45) is also movably connected inside the adjusting groove (49). A drive motor (50) is fixedly connected to the middle of the top of the positioning seat (46). An eccentric plate (51) is fixedly connected to the output end of the drive motor (50). An assembly rod B (52) is fixedly connected to the end of the eccentric plate (51) away from the drive motor (50). The assembly rod B (52) is also movably connected inside the adjustment channel (49). Adjustment plate B (53) is fixedly connected to one end of the rotating shaft (47) away from the positioning seat (46). The end of the adjustment plate B (53) away from the rotating shaft (47) is fixedly connected to the assembly rod C (54), and the assembly rod C (54) is also movably connected inside the linkage through groove (32).

3. The high-concentration chemical waste liquid vaporization separation multi-stage treatment system according to claim 1, characterized in that: The bottom of the outer side of the separator (14) is fixedly connected to a discharge pipe, and a discharge valve is provided on the discharge pipe.

4. The high-concentration chemical waste liquid vaporization separation multi-stage treatment system according to claim 1, characterized in that: The lower middle part of the separator (14) is fixedly connected to a collision bed (55), and the collision bed (55) is filled with low-resistance structured packing.

5. The high-concentration chemical waste liquid vaporization separation multi-stage treatment system according to claim 1, characterized in that: Multiple guide pipes (56) are fixedly connected to the middle of the outer side of the separation tank (14), and the bottom end of each guide pipe (56) extends around the collision bed (55) into the interior of the separation tank (14).

6. The high-concentration chemical waste liquid vaporization separation multi-stage treatment system according to claim 1, characterized in that: A rotary joint is provided at one end of the solution transfer pipe (29) and the spray pipe (30) that are close to each other, and the solution transfer pipe (29) and the spray pipe (30) are connected by the rotary joint.

7. The high-concentration chemical waste liquid vaporization separation multi-stage treatment system according to claim 6, characterized in that: The bottom end of the spray pipe (30) is provided with multiple spray holes, and each spray hole is provided with a nozzle.

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