A multi-stage separator for rapidly separating solutes from a solvent

Abstract

The present invention relates to the technical field of solvent solute separation, and in particular to a multi-stage separator for quickly separating solutes in a solvent, comprising a horizontally arranged bidirectional separation device, wherein the two ends of the bidirectional separation device are respectively mounted on the corresponding working ends of a translation control mechanism, and the tops of the two ends of the translation control mechanism are respectively fixed to the bottoms of the corresponding ends of a horizontal hanging plate through lifting units, and the horizontal hanging plate is fixedly hoisted, and inlet flange pipes connected to the interior thereof are respectively arranged at the bottoms of the two ends of the bidirectional separation device. The multi-stage separator can effectively separate solvent and solute in a solvent, and can use the translation control mechanism to realize alternating solute separation treatment for solutions on both sides when separating solutes; during treatment, the solutions on both sides can use the same type of solutions or solutions of different categories, and the entire treatment process relies on membrane separation combined with evaporation crystallization to realize concentration first and then crystallization precipitation, which is more efficient and quick.

Description

Technical Field

[0001] The invention relates to the technical field of solvent solute separation, in particular to a multi-stage separator for realizing rapid separation of solutes in a solvent. Background Art

[0002] In chemical analysis and industrial applications, in order to obtain high-purity compounds, it is often necessary to use common equipment or some special equipment to separate the target solute from the organic solvent solution. Especially when the solute is a valuable product or a recyclable raw material, it is generally necessary to recover such solute from the organic solvent waste to reduce resource waste and reduce production costs.

[0003] In the prior art, when separating solutes from organic solvents, commonly used methods mainly include evaporation, extraction, distillation, crystallization, membrane separation and other solvent solute treatment methods.

[0004] For example, in the prior art, a patent document with patent application number CN201610590462.2 and IPC classification number B01D61 / 02 (20060101) discloses a device and method for quickly concentrating solutes in water, whose main structure includes a pressure water tank, a reverse osmosis separation membrane, a power source, a heater, an agitator, a raw water tank, a temperature controller, a stirring motor, a reflux valve, an exhaust valve, a sampling valve and other components.

[0005] It can be seen from the above-mentioned prior art documents that it mainly utilizes the selective permeability of the membrane material to separate the water molecules, leaving the salts, so that the salt concentration in the water is concentrated, and water with a predetermined concentration ratio can be obtained quickly and reliably, thereby shortening the circulating cooling water treatment test period.

[0006] Although this rapid solute concentration device can achieve rapid concentration of solutes in the early stage, it is not thorough in separating and precipitating the solutes in the later stage and there are difficulties in the terminal separation process, that is, the entire solute separation process still needs to be coordinated with complex subsequent processes to be completed. Therefore, the above-mentioned rapid concentration device is not suitable for use in an environment where solutes in the solution need to be separated quickly.

[0007] Based on this, the present invention optimizes and improves the problems existing in the solvent solute separation process in the prior art, and hereby proposes a multi-stage separator for quickly separating solutes in the solvent, which is better suitable for solute separation operations and better solves the problems existing in the prior art. Summary of the invention

[0008] The present invention solves one of the above-mentioned technical problems, and the technical solution adopted is: a multi-stage separator for realizing rapid separation of solutes in a solvent, comprising a horizontally arranged two-way separation device, wherein the two ends of the two-way separation device are respectively installed at the corresponding working ends of a translation control mechanism, and the tops of the two ends of the translation control mechanism are respectively fixed to the bottoms of the corresponding ends of a horizontal hanging plate through lifting units, and the horizontal hanging plate is fixedly hoisted, and a rotating driving member is installed below the left end of the translation control mechanism, and inlet flange pipes connected to the interior thereof are respectively arranged at the bottoms of the two ends of the two-way separation device, and the bottoms of the two inlet flange pipes are respectively connected to external liquid inlet pipelines; the translation control mechanism is used to adjust and control the pressure inside the two-way separation device.

[0009] In any of the above schemes, it is preferred that the translation control mechanism includes a horizontally arranged support frame, a horizontal lead screw is installed inside the support frame, and the stepped shafts at both ends of the horizontal lead screw are movably extended to the outside of the support frame, and an input pulley is fixedly installed on the left end of the horizontal lead screw, and the input pulley is used to connect external power, and hanging positioning seats are symmetrically fixedly installed on the tops of both ends of the support frame, and the tops of the hanging positioning seats are respectively fixedly connected to the bottoms of the lifting units at their corresponding positions, and movable slides are symmetrically and spaced apart on the outer walls on both sides of the middle part of the horizontal lead screw, and the front and rear side walls of each movable slide are respectively abutted against the inner side walls of the support frame, and hanging adjustment parts are respectively fixedly installed on the bottoms of each movable slide, and the two ends of the translation control mechanism are respectively installed on the corresponding hanging adjustment parts.

[0010] In any of the above schemes, it is preferred that the bidirectional separation device includes a horizontally arranged middle insulating sleeve, a pushing membrane unit is sealed and installed in the hollow cavity of the middle insulating sleeve, end cylinders are screwed and installed at both ends of the inner cavity of the middle insulating sleeve, and plunger tubes are integrally formed at the outer ends of each end cylinder, and a connecting column is fixedly installed on the top of each plunger tube, and the top of each connecting column is fixed to the bottom of the support frame through a connecting seat, the plunger cavity of the plunger tube is connected to the liquid storage cavity of the end cylinder, and the two ends of the pushing membrane unit extend to Inside the liquid storage cavity at the corresponding position, a hollow pushing tube is sealably inserted inside the plunger cavity, the inner end of the hollow pushing tube is sealed and the end portion is fixedly bolted to the corresponding end portion of the pushing membrane unit, the rear end of the pushing membrane unit passes through the through long groove on the rear side of the middle part of the middle insulating sleeve and extends to the outside to be connected with an external pipeline, and one-way liquid inlet valves are respectively installed on the outer side walls of the inner end of the hollow pushing tube, the inlet of the one-way liquid inlet valve is connected to the liquid guide channel inside the hollow pushing tube, and the outlet of the one-way liquid inlet valve is connected to the inside of the liquid storage cavity.

[0011] In any of the above schemes, it is preferred that the pushing membrane unit includes a central sleeve horizontally and coaxially arranged inside the hollow cavity, a sealing ring is fixedly sleeved on the middle outer wall of the central sleeve, the outer wall of the sealing ring is sealed against the inner wall of the hollow cavity, the inner diameter of the hollow cavity is the same as the inner diameter of the liquid storage cavity, and connecting end caps fixedly installed on the left and right ends of the central sleeve are respectively connected to the inner end of the hollow pushing tube, and a plurality of semipermeable membrane groups are evenly spaced along the circumference of each connecting end cap, each of the semipermeable membrane groups is used to separate the solvent from the macromolecular solute in part of the solution after pressure is applied, and the separated solvent enters the central liquid collecting cavity inside the central sleeve, and a drainage pipe joint connected to the external pipeline is fixedly installed at the center of the rear outer wall of the central sleeve, and the interior of the drainage pipe joint is connected to the interior of the central liquid collecting cavity.

[0012] In any of the above schemes, it is preferred that when the push membrane unit moves to the left in the horizontal direction, the pressure of the liquid storage chamber on the left side increases and the pressure of the liquid storage chamber on the right side decreases; when the push membrane unit moves to the right in the horizontal direction, the pressure of the liquid storage chamber on the right side increases and the pressure of the liquid storage chamber on the left side decreases.

[0013] In any of the above schemes, it is preferred that the outer end portion of each pushing membrane unit is movably and sealingly inserted into the interior of the liquid inlet bin at its corresponding position, an inlet flange pipe connected to the interior is fixedly arranged at the bottom of the liquid inlet bin, and a connecting end seat is fixedly installed at the outer end of each liquid inlet bin, and the connecting end seat is sleeved on the hanging adjustment piece at its corresponding position.

[0014] Preferably, in any of the above schemes, the hanging adjustment member includes a vertically arranged adjusting screw, the top of the adjusting screw is fixedly mounted on the bottom of the movable slide, the lower end of the adjusting screw moves through the through hole of the connecting end seat and extends to the bottom thereof, and anti-slip nuts are threadedly engaged on the externally threaded side walls of the adjusting screw at the upper and lower parts of the connecting end seat, and the two anti-slip nuts cooperate to achieve clamping and positioning of the connecting end seat.

[0015] In any of the above schemes, it is preferred that the rotating drive member is installed on the left side of the hollow pushing tube at the left end, and the rotating drive member includes a fixed pulley coaxially fixedly installed on the outer wall of the hollow pushing tube at the left end, and a horizontal motor seat is spaced apart below the fixed pulley, the left end of the horizontal motor seat is movably sleeved on the external threaded side wall of the adjusting screw, and positioning nuts are threadedly installed on the external threaded side walls of the adjusting screw at the upper and lower parts of the horizontal motor seat, respectively, a rotating stirring motor is fixedly installed on the top of the right end of the horizontal motor seat, and a driven pulley is fixedly installed on the motor shaft of the rotating stirring motor, and the driven pulley is connected to the fixed pulley above it by a toothed belt.

[0016] In any of the above schemes, preferably, a plurality of solution stirring teeth are spaced apart on the outer side wall of the hollow pushing tube inside each of the liquid storage chambers.

[0017] In any of the above schemes, it is preferred that an end expansion cavity is provided at the outer end of each of the liquid storage cavities, and the two sides of each of the end expansion cavities are arranged close to the middle, and a steam discharge pipe connected with the interior thereof is fixedly installed on the top of each of the end expansion cavities, and a steam valve is installed on the steam discharge pipe, and a solute collection inspection pipe is fixedly installed on the top of the end expansion cavity, and a screw-on sealing cover is installed on the bottom of the solute collection inspection pipe.

[0018] In any of the above solutions, it is preferred that the end cylinder is made of martensitic stainless steel and is provided with a heating terminal connected to an external circuit.

[0019] In any of the above schemes, preferably, a temperature measuring probe is installed on the end cylinder at the outer end of each end expansion cavity, and the inner end of each temperature measuring probe extends into the interior of the liquid storage cavity.

[0020] In any of the above schemes, preferably, an electromagnetic coil is wound on the outer side wall of each end cylinder, and a restraining sleeve is sleeved on the outer side of each electromagnetic coil.

[0021] In any of the above schemes, it is preferred that the electromagnetic coil switches on and off the power as needed to achieve magnetization processing on the end cylinder.

[0022] In any of the above schemes, it is preferred that the end cylinder is connected to an external circuit through a heating terminal to heat the solution inside the liquid storage chamber and cooperate with the energization of the electromagnetic coil to achieve magnetization of the end cylinder, and the two cooperate to achieve the purpose of increasing the solubility of the solute in the solution.

[0023] When the solubility of the solute in the solution increases, the pushing membrane unit is started and the separation of part of the solvent in the current liquid storage chamber is completed, thereby increasing the concentration of the remaining solution in the liquid storage chamber; the remaining solution is concentrated after the separation of part of the solvent into the liquid collecting chamber is completed by applying pressure from the semipermeable membrane group; after the solvent separation operation of the semipermeable membrane group is completed, the pushing membrane unit is returned to its position, and heating and evaporation are continued to be performed, so that the remaining solvent is discharged through the steam discharge pipe until the solute crystals are precipitated; at the same time, the heating and cooling are stopped, and the power supply of the electromagnetic coil is disconnected to increase the speed and effect of solute precipitation; after the precipitation is completed, the pushing membrane unit is controlled to continue to move to one side of the current liquid storage chamber and push the solute crystals into the end expansion chamber for easy centralized collection.

[0024] In any of the above schemes, preferably, the lifting unit includes a vertically arranged lifting cylinder, the top of the lifting cylinder is fixed to the bottom of the horizontal hanging plate, and the bottom of the lifting cylinder is fixed to the top of the hanging positioning seat.

[0025] Compared with the prior art, the present invention has the following beneficial effects:

[0026] 1. This multi-stage separator can effectively separate the solvent and the solute in the solvent. At the same time, when separating the solute, it can use the translation control mechanism to alternately separate the solutions on both sides to complete the solute separation treatment; during the treatment, the solutions on both sides can use the same type of solution or solutions of different categories. The entire treatment process relies on membrane separation combined with evaporation crystallization to achieve concentration first and then crystallization precipitation, which is more efficient and quick.

[0027] 2. In the present invention, when dealing with membrane separation treatment of each semipermeable membrane group of the push membrane unit, the corresponding horizontal displacement can be controlled by the operation of the translation control mechanism, thereby effectively ensuring that the current solution is pressurized as needed, effectively ensuring the effect of the membrane separation solvent, and effectively ensuring the concentration of the remaining solution in the liquid storage chamber; it is convenient to improve the efficiency of subsequent evaporation and crystallization operations to precipitate the solute.

[0028] 3. The multi-stage separator for rapidly separating solutes in a solvent of the present invention is also equipped with heating and magnetization to increase solubility before membrane pressurization separation, so as to ensure that the solution is close to saturation after removing part of the solvent, and to ensure the evaporation efficiency during subsequent evaporation.

[0029] 4. In the process of promoting membrane separation solvent by pressurizing, the operation of the rotating drive can drive the solution stirring teeth inside the liquid storage chamber to rotate, effectively ensuring the full uniformity of the solution inside and ensuring the relative consistency of the separation effect during the membrane separation process. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] In order to more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the following is a brief introduction to the drawings required for the specific embodiments or the description of the prior art. In all the drawings, similar elements or components are generally identified by similar reference numerals. In the drawings, the elements or components are not necessarily drawn according to the actual scale.

[0031] Figure 1 This is a schematic diagram of the three-dimensional structure from the first perspective of the multi-stage separator for realizing rapid separation of solutes in a solvent according to the present invention.

[0032] Figure 2 This is a schematic diagram of the three-dimensional structure from a second perspective of the multi-stage separator for realizing rapid separation of solutes in a solvent according to the present invention.

[0033] Figure 3 This is a schematic diagram of the main structure of a multi-stage separator for realizing rapid separation of solutes in a solvent according to the present invention.

[0034] Figure 4 It is a schematic diagram of the three-dimensional structure of the bidirectional separation device of the present invention.

[0035] Figure 5 It is a schematic diagram of the front view structure of the bidirectional separation device of the present invention.

[0036] Figure 6 It is a schematic diagram of the internal cross-sectional structure of the bidirectional separation device of the present invention.

[0037] Figure 7 for Figure 6 Schematic diagram of the local enlarged structure.

[0038] In the figure, 1, two-way separation device; 2, horizontal hanging plate; 3, imported flange pipe; 4, supporting frame; 5, horizontal screw; 501, stepped shaft; 6, input pulley; 7, hanging positioning seat; 8, moving slide; 9, middle insulating sleeve; 10, hollow cavity; 11, end cylinder; 12, plunger tube; 13, connecting column; 14, connecting seat; 15, liquid storage cavity; 16, hollow pushing tube; 17, through long groove; 18, one-way liquid inlet valve; 19, liquid guide channel; 20, liquid inlet tank; 21, connecting end seat; 22, adjusting screw; 23, anti-screw 1. Mother; 24. Solution stirring teeth; 25. End expansion chamber; 26. Steam discharge pipe; 27. Steam valve; 28. Solute collection inspection pipe; 29. ​​Screw-on sealing cover; 30. Lifting cylinder; 31. Center sleeve; 32. Sealing ring; 33. Connecting end cover; 34. Semipermeable membrane group; 35. Center liquid collecting chamber; 36. Discharge pipe joint; 37. Fixed pulley; 38. Horizontal motor seat; 39. Positioning nut; 40. Rotating stirring motor; 41. Driven pulley; 42. Toothed belt; 43. Temperature probe; 44. Electromagnetic coil; 45. Constraint sleeve. DETAILED DESCRIPTION

[0039] The following is a detailed description of the embodiments of the technical solution of the present invention in conjunction with the accompanying drawings. The following embodiments are only used to more clearly illustrate the technical solution of the present invention, and are therefore only used as examples, and cannot be used to limit the scope of protection of the present invention. Figure 1-Figure 7 as shown in .

[0040] Embodiment 1: A multi-stage separator for realizing rapid separation of solutes in a solvent, comprising a horizontally arranged bidirectional separation device 1, wherein both ends of the bidirectional separation device 1 are respectively mounted on corresponding working ends of a translation control mechanism, and the tops of both ends of the translation control mechanism are respectively fixed to the bottoms of corresponding ends of a horizontal hanging plate 2 through lifting units, and the horizontal hanging plate 2 is fixedly hoisted, and a rotating driving member is installed below the left end of the translation control mechanism, and inlet flange pipes 3 connected to the interior thereof are respectively arranged at the bottoms of both ends of the bidirectional separation device 1, and the bottoms of the two inlet flange pipes 3 are respectively connected to external liquid inlet pipelines; the translation control mechanism is used to adjust and control the pressure inside the bidirectional separation device 1.

[0041] It should be noted that after the installation of the entire multi-stage separator, the two-way separation device 1 below it is relatively fixed and hoisted by relying on the translation control mechanism. When it is necessary to control the internal work of the two-way separation device 1, the internal pressure of the corresponding side of the two-way separation device 1 can be controlled in the horizontal direction by starting the translation control mechanism, so as to effectively complete the processing of the solvent and solute in the solution on the current side as needed; the designed two-way separation device 1 can store solutions on both sides, which can realize the alternating processing of two solutions of the same type at the same time, and can also realize the alternating processing of solutions of different types. The overall processing effect is good and the versatility is strong.

[0042] In any of the above schemes, it is preferred that the translation control mechanism includes a horizontally arranged support frame 4, a horizontal screw 5 is installed inside the support frame 4, and the stepped shafts 501 at both ends of the horizontal screw 5 are movable to the outside of the support frame 4, and an input pulley 6 is fixedly installed at the left end of the horizontal screw 5, and the input pulley 6 is used to connect external power, and hanging positioning seats 7 are symmetrically fixedly installed on the tops of both ends of the support frame 4, and the tops of the hanging positioning seats 7 are respectively fixedly connected to the bottom of the lifting unit at their corresponding positions, and movable slides 8 are symmetrically and spaced apart on the outer walls on both sides of the middle part of the horizontal screw 5, and the front and rear side walls of each movable slide 8 are respectively abutted against the inner side walls of the support frame 4, and hanging adjustment parts are respectively fixedly installed on the bottom of each movable slide 8, and the two ends of the translation control mechanism are respectively installed on the corresponding hanging adjustment parts.

[0043] It should be noted that the translation control mechanism in the present invention mainly relies on the input pulley 6 to connect to the external power when it is working. When the input pulley 6 is working, it drives the horizontal screw 5 to rotate, so that the two movable slides 8 thereon can be driven to move horizontally in the same direction as needed and maintain synchronous movement, and can achieve rapid self-locking when they are moved into place; in the process of translation of the movable slide 8, the hanging adjustment part at the bottom of the movable slide 8 is driven to follow the movement, so as to finally achieve the purpose of pressurizing the liquid storage chamber 15 on one side and reducing the pressure in the liquid storage chamber 15 on the other side of the two-way separation device 1 at the current position.

[0044] Since the shifting directions of the two movable slides 8 can be quickly controlled only by controlling the forward and reverse rotation of the input pulley 6, they can be shifted in both directions as needed, thereby achieving rapid and on-demand control of the solutions inside the liquid storage chambers 15 on both sides to be alternately pressurized or depressurized, and then cooperating with the corresponding push membrane unit to complete the on-demand separation of part of the solvent in the current solution.

[0045] In any of the above schemes, it is preferred that the bidirectional separation device 1 includes a horizontally arranged middle insulating sleeve 9, a push membrane unit is sealed and installed in the hollow cavity 10 of the middle insulating sleeve 9, end cylinders 11 are screwed and installed at both ends of the inner cavity of the middle insulating sleeve 9, and a plunger tube 12 is integrally formed at the outer end of each end cylinder 11, and a connecting column 13 is fixedly installed on the top of each plunger tube 12, and the top of each connecting column 13 is fixed to the bottom of the support frame 4 through a connecting seat 14, the plunger cavity of the plunger tube 12 is connected to the liquid storage cavity 15 of the end cylinder 11, and the two ends of the push membrane unit The hollow pushing tube 16 is sealed and inserted into the interior of the plunger cavity, and the inner end of the hollow pushing tube 16 is sealed and the end thereof is fixedly bolted to the corresponding end of the pushing membrane unit. The rear end of the pushing membrane unit passes through the through long groove 17 on the rear side of the middle part of the middle insulating sleeve 9 and extends to the outside to be connected with the external pipeline. One-way liquid inlet valves 18 are respectively installed on the outer side walls of the inner end of the hollow pushing tube 16. The inlet of the one-way liquid inlet valve 18 is connected to the liquid guide channel 19 inside the hollow pushing tube 16, and the outlet of the one-way liquid inlet valve 18 is connected to the interior of the liquid storage cavity 15.

[0046] It should be noted that when the two-way separation device 1 is working, the middle insulating sleeve 9 in the middle is sealed and screwed with the end cylinders 11 at both ends and they are kept relatively fixed and hoisted to maintain stability. Therefore, when the liquid storage chambers 15 on both sides need to be processed, the hanging adjustment parts at the ends of the hollow pushing tubes 16 are connected to the bottom of the corresponding movable slide 8, so that the pushing membrane unit can be driven to shift along the internal axial direction of the middle insulating sleeve 9 as needed with the translation of the movable slide 8. In the process of displacement, the volume inside the liquid storage chamber 15 on the opposite side can be compressed and pressurized. The internal volume of the liquid storage chamber 15 on the opposite side becomes larger and serves the purpose of reducing pressure; since the one-way liquid inlet valve 18 is respectively installed on the outer wall of the inner end of the hollow pushing tube 16 on the corresponding side, the liquid storage chamber 15 can only take in liquid through the one-way liquid inlet valve 18, and the solution cannot be discharged using the one-way liquid inlet valve 18. Therefore, when the liquid storage chamber 15 on the corresponding side is pressurized, the solvent will be separated through the semipermeable membrane group 34 on the current side, so that part of the solvent enters the liquid collecting chamber inside the pushing membrane unit and is quickly discharged to the outside, thereby achieving the purpose of increasing the solute concentration in the solution inside the current liquid storage chamber 15.

[0047] The hollow pushing tube 16 can transmit pushing force and transport liquid due to its hollow structure design, and can also transmit rotational force.

[0048] In any of the above schemes, it is preferred that when the push membrane unit moves horizontally to the left, the pressure of the liquid storage chamber 15 on the left side increases and the pressure of the liquid storage chamber 15 on the right side decreases; when the push membrane unit moves horizontally to the right, the pressure of the liquid storage chamber 15 on the right side increases and the pressure of the liquid storage chamber 15 on the left side decreases.

[0049] The horizontal displacement of the push membrane unit can drive the liquid storage chambers 15 on both sides to achieve pressurization on one side and decompression on the other side, so that the semipermeable membrane group 34 on the pressurized side can be in a working conduction state, and the semipermeable membrane group 34 on the other side can be in a blocked state.

[0050] In any of the above schemes, it is preferred that the outer end of each pushing membrane unit is movably and sealingly inserted into the interior of the liquid inlet bin 20 at its corresponding position, and an inlet flange pipe 3 connected to the interior is fixedly provided at the bottom of the liquid inlet bin 20, and a connecting end seat 21 is fixedly installed at the outer end of each liquid inlet bin 20, and the connecting end seat 21 is sleeved on the hanging adjustment piece at its corresponding position.

[0051] The push film unit can maintain a relatively fixed detachable connection with the hanging adjustment member by means of the connection end seat 21, thereby ensuring quickness during installation and replacement and facilitating disassembly, maintenance and replacement.

[0052] In any of the above schemes, it is preferred that the hanging adjustment member includes a vertically arranged adjusting screw 22, the top of the adjusting screw 22 is fixedly mounted on the bottom of the movable slide 8, the lower end of the adjusting screw 22 is movable through the through hole of the connecting end seat 21 and extends to the bottom thereof, and anti-slip nuts 23 are threadedly engaged on the external threaded side walls of the adjusting screw 22 at the upper and lower parts of the connecting end seat 21, and the two anti-slip nuts 23 cooperate to achieve clamping and positioning of the connecting end seat 21.

[0053] The hanging position adjusting member mainly relies on the bearing capacity of the adjusting screw 22 and the anti-dropping nut 23 to achieve locking and positioning, and finally ensures the positioning of the entire hanging position adjusting member to the current liquid inlet bin 20, thereby ensuring the stability of the entire push membrane unit support.

[0054] In any of the above solutions, it is preferred that a plurality of solution stirring teeth 24 are spaced apart on the outer side wall of the hollow pushing tube 16 inside each of the liquid storage chambers 15 .

[0055] When the solution stirring teeth 24 rotate, the solubility of the solution can be effectively improved, and the uniformity of the solution can be effectively ensured.

[0056] In any of the above schemes, it is preferred that an end expansion cavity 25 is provided at the outer end of each of the liquid storage cavities 15, and the two sides of each of the end expansion cavities 25 are arranged close to the middle, and a steam discharge pipe 26 connected with the interior thereof is fixedly installed on the top of each of the end expansion cavities 25, and a steam valve 27 is installed on the steam discharge pipe 26, and a solute collection inspection pipe 28 is fixedly installed on the top of the end expansion cavity 25, and a screw-on sealing cover 29 is installed at the bottom of the solute collection inspection pipe 28.

[0057] It should be noted that the end expansion chamber 25 designed here is mainly to enable the solute crystals to be continuously accumulated at the bottom of the end expansion chamber 25 after subsequent evaporation and crystallization, so as to facilitate subsequent centralized collection. When collecting, the solute crystals can be quickly collected by screwing down and screwing down the sealing cover 29.

[0058] In addition, since the screw-on sealing cover 29 is relatively large in size, it can be easily inspected and repaired during subsequent inspection and repair.

[0059] When it is necessary to heat and evaporate the concentrated solution obtained after the pressurized membrane filtration, the solvent is evaporated and discharged through the steam discharge pipe 26 during the heating process, thereby ensuring that the solution concentration continues to increase and reaches saturation. After supersaturation, solute crystals are continuously precipitated. Controlling the opening and closing of the steam valve 27 can control the discharge of steam on demand.

[0060] In any of the above schemes, it is preferred that the lifting unit includes a vertically arranged lifting cylinder 30, the top of the lifting cylinder 30 is fixed to the bottom of the horizontal hanging plate 2, and the bottom of the lifting cylinder 30 is fixed to the top of the hanging positioning seat 7.

[0061] When the entire bidirectional separation device 1 needs to be controlled to be raised or lowered, the two lifting cylinders 30 can be started synchronously to achieve the required lifting and lowering.

[0062] Embodiment 2: Compared with Embodiment 1, this embodiment further includes the following technical features:

[0063] In any of the above schemes, it is preferred that the pushing membrane unit includes a central sleeve 31 horizontally and coaxially arranged inside the hollow cavity 10, a sealing ring 32 is fixedly sleeved and installed on the middle outer wall of the central sleeve 31, the outer wall of the sealing ring 32 is tightly sealed against the inner wall of the hollow cavity 10, the inner diameter of the hollow cavity 10 is the same as the inner diameter of the liquid storage cavity 15, and connecting end caps fixedly connected to the inner end of the hollow pushing tube 16 are respectively fixedly installed on the left and right ends of the central sleeve 31 33. A plurality of semipermeable membrane groups 34 are evenly spaced along the circumference of each of the connecting end covers 33. Each of the semipermeable membrane groups 34 is used to separate part of the solvent from the macromolecular solute in the solution after pressure is applied. The separated solvent enters the central liquid collecting chamber 35 inside the central sleeve 31. A discharge pipe joint 36 connected to an external pipeline is fixedly installed at the center of the rear outer wall of the central sleeve 31. The interior of the discharge pipe joint 36 is connected to the interior of the central liquid collecting chamber 35.

[0064] It should be noted that: when the push membrane unit is working, it relies on the central sleeve 31 to drive the translation of the structure above it to achieve control of the internal space of the liquid storage chamber 15 on its corresponding side; when the internal space of the liquid storage chamber 15 is reduced, its internal pressure increases, which will cause each semipermeable membrane group 34 to be pressurized and in a started state, so that part of the solvent in the solution is separated from the macromolecular solute, and the solvent enters the central liquid collecting chamber 35 and is discharged outward through the discharge pipe joint 36, ultimately achieving the purpose of increasing the concentration of the solution inside the current liquid storage chamber 15.

[0065] In any of the above schemes, it is preferred that the rotating drive member is installed on the left side of the hollow pushing tube 16 at the left end, and the rotating drive member includes a fixed pulley 37 coaxially fixedly installed on the outer wall of the hollow pushing tube 16 at the left end, and a horizontal motor seat 38 is arranged at intervals below the fixed pulley 37, the left end of the horizontal motor seat 38 is movably sleeved on the external threaded side wall of the adjusting screw 22, and positioning nuts 39 are respectively threadedly installed on the external threaded side walls of the adjusting screw 22 at the upper and lower parts of the horizontal motor seat 38, a rotating stirring motor 40 is fixedly installed on the top of the right end of the horizontal motor seat 38, and a driven pulley 41 is fixedly installed on the motor shaft of the rotating stirring motor 40, and the driven pulley 41 is connected to the fixed pulley 37 above it by a toothed belt 42.

[0066] When the rotating driving part is working, it relies on the rotation of the rotating stirring motor 40 to drive the driven pulley 41, the toothed belt 42 and the fixed pulley 37 to rotate, thereby driving the corresponding hollow pushing tube 16 to rotate as needed. During the rotation process, the rotation of each solution stirring teeth 24 inside the liquid storage chamber 15 can be relied on to achieve rotational stirring of the internal solution.

[0067] In any of the above solutions, it is preferred that the end cylinder 11 is made of martensitic stainless steel and is provided with a heating terminal connected to an external circuit.

[0068] After the end cylinder 11 is connected to an external power source through the heating terminal, it can be heated to an appropriate temperature as required and complete the rapid heating and temperature raising process of the internal solution.

[0069] In any of the above schemes, it is preferred that a temperature measuring probe 43 is installed on the end cylinder 11 at the outer end of each end expansion cavity 25 , and the inner end of each temperature measuring probe 43 extends into the interior of the liquid storage cavity 15 .

[0070] The temperature measuring probe 43 can quickly complete the rapid measurement and detection of the current solution temperature inside the liquid storage chamber 15.

[0071] In any of the above schemes, preferably, an electromagnetic coil 44 is wound on the outer wall of each end cylinder 11 , and a restraining sleeve 45 is sleeved on the outer side of each electromagnetic coil 44 .

[0072] In any of the above solutions, it is preferred that the electromagnetic coil 44 is powered on and off as needed to achieve magnetization of the end cylinder 11 .

[0073] The electromagnetic coil 44 has two functions: first, it generates electromagnetic induction and is used to magnetize the end cylinder 11 ; second, it serves the purpose of electromagnetically heating the end cylinder 11 .

[0074] The end cylinder 11 is connected to an external circuit via a heating terminal to heat the solution in the liquid storage chamber 15 and cooperates with the energization of the electromagnetic coil 44 to achieve magnetization of the end cylinder 11. The two cooperate to achieve the purpose of increasing the solubility of the solute in the solution.

[0075] When the solubility of the solute in the solution increases, the pushing membrane unit is started and the separation of part of the solvent in the current liquid storage chamber 15 is completed, thereby increasing the concentration of the remaining solution in the liquid storage chamber 15; the semipermeable membrane group 34 is used to apply pressure to complete the separation of part of the solvent into the liquid collecting chamber to achieve the concentration of the remaining solution; after the semipermeable membrane group 34 separates the solvent, the pushing membrane unit returns to its original position, and continues to heat and evaporate, so that the remaining solvent is discharged through the steam discharge pipe 26 until the solute crystals are precipitated; at the same time, the heating and cooling are stopped, and the power supply of the electromagnetic coil 44 is disconnected to increase the speed and effect of the solute precipitation; after the precipitation is completed, the pushing membrane unit is controlled to continue to move to the side of the current liquid storage chamber 15 and push the solute crystals into the end expansion chamber 25 for centralized collection.

[0076] Specific working principle:

[0077] After the installation of the whole multi-stage separator, the two-way separation device 1 below it is relatively fixedly hoisted by means of the translation control mechanism. When it is necessary to control the internal work of the two-way separation device 1, the internal pressure control of the corresponding side of the two-way separation device 1 in the horizontal direction can be completed by starting the translation control mechanism, so that the processing of the solvent and solute in the solution on the current side can be effectively completed as needed; the designed two-way separation device 1 can store solutions on both sides, which can realize the alternating processing of two solutions of the same type at the same time, and can also realize the alternating processing of solutions of different types, with good overall processing effect and strong versatility. Specifically, when the translation control mechanism is working, it mainly relies on the input pulley 6 to connect to the external power. When the input pulley 6 is working, it drives the horizontal screw 5 to rotate, so that the two movable slides 8 thereon can be driven to move horizontally in the same direction as needed and maintain synchronous movement, and can achieve rapid self-locking when moved into place; in the process of the translation of the movable slide 8, the hanging adjustment part at the bottom of the movable slide 8 is driven to follow the movement, and finally the purpose of pressurizing the liquid storage chamber 15 on one side and reducing the pressure in the liquid storage chamber 15 on the other side of the two-way separation device 1 at the current position is achieved. When the bidirectional separation device 1 is in operation, the middle insulating sleeve 9 in the middle thereof is sealed and screwed with the end cylinders 11 at both ends and both are kept relatively fixed and hoisted to maintain stability. Therefore, when the liquid storage chambers 15 on both sides need to be processed, the hanging adjustment parts at the ends of the hollow pushing tubes 16 are connected to the bottom of the corresponding movable slide 8, so that the pushing membrane unit can be driven to shift along the internal axial direction of the middle insulating sleeve 9 as needed following the translation of the movable slide 8. In the process of displacement, the volume inside the liquid storage chamber 15 on the opposite side can be compressed and pressurized, and the opposite side can be pressed. The internal volume of the liquid storage chamber 15 on the corresponding side becomes larger and serves the purpose of reducing pressure; since a one-way liquid inlet valve 18 is respectively installed on the outer wall of the inner end of the hollow pushing tube 16 on the corresponding side, the liquid storage chamber 15 can only take in liquid through the one-way liquid inlet valve 18, and the solution cannot be discharged by using the one-way liquid inlet valve 18. Therefore, when the liquid storage chamber 15 on the corresponding side is pressurized, the solvent will be separated through the semipermeable membrane group 34 on the current side, so that part of the solvent enters the liquid collecting chamber inside the pushing membrane unit and is quickly discharged to the outside, thereby achieving the purpose of increasing the solute concentration in the solution inside the current liquid storage chamber 15.

[0078] In summary, it can be seen that the multi-stage separator can effectively separate the solvent and the solute in the solvent, and at the same time, when separating the solute, it can use the translation control mechanism to realize the solute separation treatment for the solutions on both sides alternately; during the treatment, the solutions on both sides can use the same type of solution or solutions of different categories, and the entire treatment process relies on membrane separation and evaporation crystallization to realize the method of first concentrating and then crystallizing and precipitating more efficiently and quickly; when dealing with the membrane separation treatment of each semipermeable membrane group 34 of the push membrane unit, it can rely on the operation of the translation control mechanism to control its corresponding horizontal displacement, so as to effectively ensure that it can effectively control the current The solution is pressurized to effectively ensure the effect of the membrane separation solvent and the concentration of the remaining solution in the liquid storage chamber 15; it is convenient to improve the efficiency of the subsequent evaporation and crystallization operations to precipitate the solute; before the membrane is pressurized for separation, heating and magnetization are also arranged to increase the solubility to ensure that the solution can be close to saturation after removing part of the solvent; to ensure the evaporation efficiency during subsequent evaporation; in the process of pressurizing the membrane to promote the separation of the solvent, the operation of the rotating drive member can drive the rotation of the solution stirring teeth 24 in the liquid storage chamber 15, effectively ensuring the full uniformity of the solution inside and ensuring the relative consistency of the separation effect during the membrane separation process.

[0079] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit the same. Although the present invention has been described in detail with reference to the above embodiments, those skilled in the art should understand that the technical solutions described in the above embodiments can still be modified, or some or all of the technical features can be replaced by equivalents. These modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present invention. For those skilled in the art, any replacement improvements or changes made to the implementation methods of the present invention fall within the protection scope of the present invention.

[0080] The matters not described in detail in the present invention are all known technologies to those skilled in the art.

Claims

1. A multi-stage separator for rapidly separating solutes in a solvent, characterized in that: It comprises a horizontally arranged two-way separation device, the two ends of which are respectively mounted on the corresponding working ends of the translation control mechanism, the tops of the two ends of the translation control mechanism are respectively fixed to the bottoms of the corresponding ends of the horizontal hanging plate through lifting units, the horizontal hanging plate is fixedly hoisted, a rotary driving member is installed below the left end of the translation control mechanism, inlet flange pipes connected to the interior thereof are respectively arranged at the bottoms of the two ends of the two-way separation device, and the bottoms of the two inlet flange pipes are respectively connected to the external liquid inlet pipelines; the translation control mechanism is used to adjust and control the pressure inside the two-way separation device; The translation control mechanism includes a horizontally arranged supporting frame, a horizontal lead screw is installed inside the supporting frame, and the stepped shafts at both ends of the horizontal lead screw are movably extended to the outside of the supporting frame, and an input pulley is fixedly installed on the left end of the horizontal lead screw, and the input pulley is used to connect an external power, and hanging positioning seats are symmetrically fixedly installed on the tops of both ends of the supporting frame, and the tops of the hanging positioning seats are respectively fixedly connected to the bottoms of the lifting units at their corresponding positions, and movable slides are symmetrically and spaced apart on the outer side walls on both sides of the middle part of the horizontal lead screw, and the front and rear side walls of each movable slide are respectively abutted against the inner side walls of the supporting frame, and a hanging adjusting member is fixedly installed on the bottom of each movable slide, and the two ends of the translation control mechanism are respectively installed on the corresponding hanging adjusting members; The two-way separation device includes a horizontally arranged middle insulating sleeve, in which a push membrane unit is sealed and installed in the hollow cavity of the middle insulating sleeve, end cylinders are screwed and installed at both ends of the inner cavity of the middle insulating sleeve, and plunger tubes are integrally formed at the outer ends of each end cylinder, and a connecting column is fixedly installed on the top of each plunger tube, and the top of each connecting column is fixed to the bottom of the support frame through a connecting seat, the plunger cavity of the plunger tube is connected to the liquid storage cavity of the end cylinder, and the two ends of the push membrane unit extend to the corresponding positions. Inside the liquid storage cavity, a hollow pushing tube is sealed and inserted in the interior of the plunger cavity, the inner end of the hollow pushing tube is sealed and its end is fixedly bolted to the corresponding end of the pushing membrane unit, the rear end of the pushing membrane unit passes through the through long groove on the rear side of the middle part of the middle insulating sleeve and extends to the outside to be connected with the external pipeline, and one-way liquid inlet valves are respectively installed on the outer side walls of the inner end of the hollow pushing tube, the inlet of the one-way liquid inlet valve is connected to the liquid guide channel inside the hollow pushing tube, and the outlet of the one-way liquid inlet valve is connected to the inside of the liquid storage cavity; When the push membrane unit moves horizontally to the left, the pressure in the liquid storage chamber on the left increases, while the pressure in the liquid storage chamber on the right decreases; when the push membrane unit moves horizontally to the right, the pressure in the liquid storage chamber on the right increases, while the pressure in the liquid storage chamber on the left decreases.

2. A multi-stage separator for rapidly separating solutes in a solvent according to claim 1, characterized in that: The outer end of each pushing membrane unit is movably and sealingly inserted into the interior of the liquid inlet bin at its corresponding position, and an inlet flange pipe connected to the interior is fixedly arranged at the bottom of the liquid inlet bin. A connecting end seat is fixedly installed at the outer end of each liquid inlet bin, and the connecting end seat is sleeved on the hanging adjustment piece at its corresponding position.

3. A multi-stage separator for rapidly separating solutes in a solvent according to claim 2, characterized in that: The hanging adjustment component includes a vertically arranged adjusting screw, the top of which is fixedly mounted on the bottom of the movable slide, and the lower end of which moves through the through hole of the connecting end seat and extends below it. Anti-slip nuts are threadedly engaged on the external threaded side walls of the adjusting screw at the upper and lower parts of the connecting end seat, and the two anti-slip nuts cooperate to achieve clamping and positioning of the connecting end seat.

4. A multi-stage separator for rapidly separating solutes in a solvent according to claim 3, characterized in that: A plurality of solution stirring teeth are arranged at intervals on the outer side walls of the hollow pushing tubes inside the liquid storage chambers.

5. A multi-stage separator for rapidly separating solutes in a solvent according to claim 4, characterized in that: An end expansion cavity is provided at the outer end of each liquid storage cavity, and the two sides of each end expansion cavity are arranged close to the middle part. A steam discharge pipe connected with the interior thereof is fixedly installed on the top of each end expansion cavity, and a steam valve is installed on the steam discharge pipe. A solute collection inspection pipe is fixedly installed on the top of the end expansion cavity, and a screw-on sealing cover is installed on the bottom of the solute collection inspection pipe.

6. A multi-stage separator for rapidly separating solutes in a solvent according to claim 5, characterized in that: The lifting unit comprises a vertically arranged lifting cylinder, the top of which is fixed to the bottom of the horizontal hanging plate, and the bottom of which is fixed to the top of the hanging positioning seat.

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