Efficient and automatic separation device for mixed resin
By automatically adjusting the liquid density in the resin regeneration and separation device, the problem of poor resin separation and layering effect in the prior art is solved, and efficient and accurate resin separation is achieved.
Patent Information
- Application Number
- CN202420762223.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-04-12
- Publication Date
- 2025-03-11
- Estimated Expiration
- 2034-04-12
AI Technical Summary
The existing resin regeneration and separation devices have problems such as poor layering effect, insufficient manual density adjustment, and long time-consuming during the separation process, resulting in low separation accuracy and efficiency.
A highly efficient automatic separation device for hybrid resin is designed, and the liquid density in the separation tank is monitored and adjusted in real time by using an electronic density transmitter. By automatically controlling the addition of brine and pure water, the optimal layering effect of the Yin and Yang resin is achieved.
It improves the accuracy and efficiency of resin separation, saves labor costs, reduces separation time, and ensures accurate separation of Yin and Yang resins.
Smart Images
Figure CN222586604U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of resin separation and regeneration, in particular to a high-efficiency automatic separation device for mixed resins. Background Art
[0002] Polishing resins are currently widely used in the final stages of the preparation process of UPW ultrapure water for the production of high-end semiconductor chips such as liquid crystals, chips, and wafers. Due to their extremely low TOC and extremely high requirements for water resistivity, this type of resin is generally used once and not regenerated. However, polishing ion exchange resins are expensive, have a short service life, and are expensive to use. Discarded polishing resins are also hazardous wastes with high disposal costs. If they are not properly disposed of, there is a risk of causing serious pollution to the environment. In order to reduce the cost of using polishing ion exchange resins and reduce hazardous waste emissions, it is a very economical and environmentally friendly way to regenerate and reuse polishing ion exchange resins that cannot be reused after failure using special methods. Polishing resin regeneration technology usually requires that the discarded mixed resins be sent to the ion resin separation equipment in the ion exchange regeneration system for separation, and then regenerated separately after separation.
[0003] At present, the conventional resin regeneration separation device has the following deficiencies in the actual separation process:
[0004] Since the density of anion resin and cation resin is not much different, and the anion and cation resins are easily suspended in water after absorbing water and swelling, the stratification effect is poor, which brings difficulties to separation. Artificially adding salt water to adjust the density changes greatly and is not accurate enough, which affects the stratification effect of anion and cation exchange resins. In addition, the stratification takes a long time, increasing time and labor costs.
[0005] In view of the above reasons, the utility model proposes a mixed resin high-efficiency automatic separation device to solve the above technical problems. Utility Model Content
[0006] The purpose of the utility model is to provide a mixed resin efficient automatic separation device, which can realize intelligent adjustment of the liquid density inside the tank to achieve the set optimal liquid density for resin separation, so that the positive and negative resins can automatically achieve the best stratification effect, and improve the separation accuracy and separation efficiency.
[0007] The utility model provides a mixed resin efficient automatic separation device, comprising: a separation tank, wherein the separation tank is equipped with an electronic density transmitter for online monitoring of the density of the liquid inside the separation tank;
[0008] A fat inlet valve, arranged at the upper part of the separation tank, for controlling the feeding of the mixed resin to be separated;
[0009] An aeration pipe is arranged inside the separation tank, and a plurality of aeration heads are arranged on the aeration pipe. The aeration pipe is connected to a lower air inlet valve outside the separation tank, and nitrogen enters the aeration pipe from the lower air inlet valve for uniform aeration to break up the agglomerated resin and perform gas scrubbing on the surface of the resin;
[0010] A salt water valve and a pure water valve are provided at the bottom of the separation tank, through which salt water and pure water can be introduced into the separation tank respectively, so as to adjust the density of the liquid inside the separation tank;
[0011] The fat discharge valve is installed at the bottom of the separation tank and is used to control the discharge of the cationic resin that sinks to the bottom of the tank.
[0012] Preferably, the electronic density transmitter comprises a capacitive differential pressure sensor and a pair of pressure relays connected thereto, and the pressure relays are inserted into the separation tank.
[0013] Preferably, the brine valve is connected to a brine pump, through which brine is introduced into the separation tank, and the pure water valve is connected to a pure water pump, through which pure water is introduced into the separation tank.
[0014] Preferably, the brine pump and the pure water pump are interlocked with the electronic density transmitter, and the density of the liquid inside the separation tank can be automatically adjusted by adjusting the amount of added brine or pure water.
[0015] Preferably, an upper water outlet valve is provided on the top of the separation tank.
[0016] Preferably, an upper air inlet valve is provided on the top of the separation tank, and nitrogen enters the interior of the separation tank through the upper air inlet valve.
[0017] Preferably, a sight glass is also provided in the separation tank, and the sight glass is arranged vertically.
[0018] Preferably, a water distributor is provided at the bottom of the separation tank, and the water distributor is connected to the brine valve and the pure water valve through a three-way pipe.
[0019] Preferably, a laser sensor control component is provided on a side of the fat discharge valve close to the separation tank, and the laser sensor control component is used to control the automatic opening and closing of the fat discharge valve.
[0020] Preferably, the laser sensing control assembly includes a transparent tube body and a laser emitter and a receiving reflector symmetrically arranged on both sides thereof. When the laser can completely receive reflection, the fat discharge valve is closed; when the laser cannot completely receive reflection, the fat discharge valve is opened.
[0021] Compared with the prior art, the utility model has the following beneficial effects:
[0022] Utilizing the principle that anion and cation resins have different buoyancy under liquids of different densities, the electronic density transmitter can monitor and preset the density value in real time, and realize automatic control of the amount of brine or pure water added to the separation tank by the brine valve and the pure water valve, so that the liquid density in the tank reaches the specified optimal density, thereby achieving the best stratification effect of the anion and cation resins. This not only saves labor costs, but also improves separation accuracy and efficiency, and solves the problem that artificial addition of brine to adjust the density has large changes, is not accurate enough, affects the stratification effect of the anion and cation exchange resins, and takes a long time to stratify, increasing time and labor costs. BRIEF DESCRIPTION OF THE DRAWINGS
[0023] In order to more clearly illustrate the specific implementation methods of the utility model or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.
[0024] Figure 1 This is a schematic diagram of the overall structure of the utility model mixed resin efficient automatic separation device;
[0025] Figure 2 This is a diagram showing the structure and working principle of the laser sensor control component in the utility model;
[0026] Description of reference numerals:
[0027] 1. Separation tank; 2. Grease inlet valve; 3. Upper water outlet valve; 4. Upper air inlet valve; 5. Sight glass; 6. Electronic density transmitter; 7. Lower air inlet valve; 8. Aeration pipe; 9. Aeration head; 10. Pure water valve; 11. Pure water pump; 12. Brine valve; 13. Brine pump; 14. Water distributor; 15. Laser sensor control component; 151. Laser transmitter; 152. Receiving reflector; 16: Grease discharge valve. DETAILED DESCRIPTION
[0028] The technical solution of the utility model will be clearly and completely described below in conjunction with the embodiments. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.
[0029] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like indicating directions or positional relationships are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore should not be understood as a limitation on the present invention.
[0030] In addition, the terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present utility model, "multiple" means two or more, unless otherwise clearly and specifically defined. In addition, the terms "installed", "connected", and "connected" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal connection of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.
[0031] like Figure 1As shown, the utility model provides a mixed resin efficient automatic separation device, comprising: a separation tank 1, the separation tank 1 is equipped with an electronic density transmitter 6, the electronic density transmitter 6 is used for online monitoring of the density of the liquid inside the separation tank, and the density value can be preset, and salt water or pure water can be automatically added according to the measured liquid density value height, so as to adjust the liquid density in real time; a fat inlet valve 2, which is arranged on one side of the upper part of the separation tank 1, and the feed of the mixed resin to be separated and its feed speed can be controlled by the fat inlet valve 2; an aeration pipe 8, which is arranged inside the separation tank 1 near the bottom of the tank, and a plurality of aeration heads 9 are arranged on the aeration pipe 8, and the aeration pipe 8 is connected with a lower air inlet valve 7 outside the separation tank 1, and the lower air inlet valve 7 is used to control the opening and closing of the nitrogen gas source, and the nitrogen is supplied from the inside The aeration pipe 8 and the aeration head 9 are used for uniform aeration to generate bubbles to break up the agglomerated resin and scrub its surface with gas; an upper water outlet valve 3 is provided on the top of the separation tank 1 to control the discharge of water and broken resin during backwashing and the discharge of gas during aeration scrubbing; a brine valve 12 and a pure water valve 10 are provided at the bottom of the separation tank 1, and the brine valve 12 and the pure water valve 10 can be used to control the introduction of brine and pure water into the separation tank 1 respectively. Pure water can be used for backwashing the mixed resin, and it is used to control the amount of brine or pure water automatically introduced according to the liquid density inside the separation tank 1 measured by the electronic density transmitter 6, thereby adjusting the density of the liquid inside the separation tank 1; a fat discharge valve 16 is installed at the bottom of the separation tank 1 to control the discharge of the cationic resin sunk to the bottom of the tank. The utility model utilizes the principle that the buoyancy of anionic and cation resins is different in liquids of different densities, and automatically controls the amount of salt water or pure water added to make the liquid inside the separation tank 1 reach a preset optimal density, thereby achieving the best stratification effect of the anionic and cation resins, which not only saves labor costs, but also improves separation accuracy and separation efficiency.
[0032] Since the relative density of the cation resin is 1.24-1.29, and the relative density of the anion resin is 1.06-1.11, the density is related to the total amount of anions and cations adsorbed by the resin and the type of the resin itself. The density of both is slightly larger than that of water. In particular, the anion resin is almost the same as the density of water, so it is suspended in the water (distributed at the bottom, middle and top). The density of the cation resin is slightly larger than that of the anion resin, and it sinks to the bottom in the water, but the anion resin is also mixed into the bottom. The utility model controls the amount of injected high-concentration brine through the electronic density transmitter 6, so that the density inside the tank is larger than that of the anion resin but smaller than that of the cation resin, so that the anion resin completely floats, but the cation resin still sinks to the bottom, so as to achieve accurate separation of the anion resin and the cation resin.
[0033] Specifically, the electronic density transmitter 6 includes but is not limited to a capacitive differential pressure sensor and a pair of pressure repeaters connected thereto, the pressure repeater is inserted into the separation tank 1 so as to realize online monitoring of the liquid density inside the separation tank 1; preferably, a temperature sensor can be arranged between the two pressure repeaters to compensate for the temperature changes of the process liquid.
[0034] In this embodiment, the salt water valve 12 is connected to the salt water pump 13, through which salt water can be introduced into the separation tank 1, and the pure water valve 10 is connected to the pure water pump 11, through which pure water can be introduced into the separation tank 1. The salt water pump 13 and the pure water pump 11 are interlocked with the electronic density transmitter 6, which can automatically control the amount of salt water or pure water added by controlling the above pumps and valves to intelligently adjust the liquid density inside the tank to achieve the set optimal liquid density for resin separation, so that the positive and negative resins can automatically achieve the best stratification effect.
[0035] In this embodiment, an upper air inlet valve 4 is provided on the top of the separation tank 1, and nitrogen enters the separation tank 1 through the upper air inlet valve 4, and nitrogen with stable pressure is conveniently provided to the separation tank 1 through the upper air inlet valve 4, so as to be used to evenly discharge the cation resin at the bottom, and ensure that the cation resin is not disordered when being discharged. The above method can solve the problem that the conventional self-flow, pumping or ejector liposome discharge method is adopted, and the suspended resin body is easily disturbed by the inflow and outflow of water and liposome, so that the resin that was originally well-divided into layers is disordered, and the separation quality of the anion and cation exchange resin is affected.
[0036] In this embodiment, the aeration tube 8 is arranged in a spiral shape, and the aeration head 9 is evenly placed above the aeration tube 8. The aperture of the aeration head 9 is smaller than the minimum diameter of the resin. In this way, the aeration range can be wider and more uniform, and the adsorbed and agglomerated resin can be completely dispersed and its scrubbing effect can be improved. The resin particles can also be prevented from clogging the aeration head 9, thereby extending the service life of the aeration head 9. Compared with mechanical stirring, the aeration dispersion and scrubbing are gentler, which can reduce the damage to the resin and make the resin particles more complete.
[0037] In this embodiment, a sight glass 5 is also provided in the separation tank 1, and the sight glass 5 is arranged vertically. The progress of resin stratification and fat discharge inside the tank body can be observed through the sight glass 5.
[0038] In this embodiment, a water distributor 14 is provided at the bottom of the separation tank 1, and the water distributor 14 is connected to the brine valve 12 and the pure water valve 10 through a three-way pipe. The water distributor 14 is arranged inside the backwash port and is used to evenly disperse the pure water or brine. The water distributor 14 can be any one of a perforated pipe, a nozzle, a filter head, and a rotary water distributor, preferably a water distributor composed of a main pipe-branch pipe-water distribution hole, and the water distribution aperture of the water distributor 14 is smaller than the minimum diameter of the resin, so that the brine can be evenly distributed in the liquid in the separation tank 1, and the resin particles that sink to the bottom can be prevented from clogging the water distribution hole.
[0039] like Figure 1 , 2As shown, a laser sensor control component 15 is provided on the side of the fat discharge valve 16 close to the separation tank 1, and the laser sensor control component 15 is used to control the automatic opening and closing of the fat discharge valve 16. The laser sensor control component 15 includes a transparent tube body and a laser transmitter and a receiving reflector symmetrically arranged on both sides thereof. The transparent tube body is a transparent material such as glass and plastic. When the laser can completely receive the reflection, the fat discharge valve 16 is closed; when the laser cannot completely receive the reflection, the fat discharge valve 16 is opened. The specific control principle is as follows:
[0040] In actual work, the laser emitter 151 will emit multiple infrared laser beams. When resin flows in the tube, the infrared laser beams emitted by the laser emitter 151 are blocked and cannot irradiate the receiving area of the receiving reflector 152. When the receiving reflector 152 cannot receive all the laser beams emitted by the laser emitter 151 or when the receiving reflector 152 cannot reflect all the laser beams to the sensing area of the laser emitter 151 after receiving all the laser beams, the laser sensor control component 15 will send instructions through circuit signals to make the fat discharge valve 16 enter the "open" state, and the bottom resin is discharged at this time. When the bottom resin is discharged, the multiple infrared laser beams emitted by the laser emitter 151 will no longer be blocked, so that the receiving reflector 152 can normally receive all the laser signals and reflect all the signals back to the sensing area of the laser emitter 151. At this time, the laser sensor control component 15 will send instructions through circuit signals to make the fat discharge valve 16 enter the "closed" state. In this way, the automatic discharge of the bottom positive resin and the automatic and timely closing after the discharge can be realized, so as to prevent the upper negative resin from flowing into the positive resin, thereby improving the separation quality.
[0041] Through the above method, there is no need to constantly observe the sight glass during fat discharge, and there is no need to manually control the fat discharge valve 16 to discharge fat. Since the manual method has high requirements on the timing of closing the fat discharge valve 16 by the employee, closing the fat discharge valve 16 too early will cause the bottom positive resin to not be completely discharged, and positive resin will remain in the negative resin. Degreasing too late will cause the upper mixed resin or negative resin to be brought out, and negative resin will remain in the positive resin. Compared with the manual fat discharge method, the utility model improves the accuracy of fat discharge, and also improves the resin separation quality and separation efficiency.
[0042] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the utility model, rather than to limit it. Although the utility model has been described in detail with reference to the aforementioned embodiments, ordinary technicians in this field should understand that they can still modify the technical solutions recorded in the aforementioned embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not make the essence of the corresponding technical solution deviate from the scope of the technical solution of the embodiments of the utility model.
Claims
1. A mixed resin efficient automatic separation device, characterized in that: include: A separation tank, wherein the separation tank is equipped with an electronic density transmitter for online monitoring of the density of the liquid inside the separation tank; A fat inlet valve, arranged at the upper part of the separation tank, for controlling the feeding of the mixed resin to be separated; An aeration pipe is arranged inside the separation tank, and a plurality of aeration heads are arranged on the aeration pipe. The aeration pipe is connected to a lower air inlet valve outside the separation tank, and nitrogen enters the aeration pipe from the lower air inlet valve for uniform aeration to break up the agglomerated resin and perform gas scrubbing on the surface of the resin; A salt water valve and a pure water valve are provided at the bottom of the separation tank, through which salt water and pure water can be introduced into the separation tank respectively, so as to adjust the density of the liquid inside the separation tank; The fat discharge valve is installed at the bottom of the separation tank and is used to control the discharge of the cationic resin that sinks to the bottom of the tank.
2. The mixed resin efficient automatic separation device according to claim 1, characterized in that: The electronic density transmitter comprises a capacitive differential pressure sensor and a pair of pressure relays connected thereto, and the pressure relays are inserted into the separation tank.
3. The mixed resin efficient automatic separation device according to claim 1, characterized in that: The brine valve is connected to a brine pump, through which brine is introduced into the separation tank; the pure water valve is connected to a pure water pump, through which pure water is introduced into the separation tank.
4. The mixed resin efficient automatic separation device according to claim 3, characterized in that: The salt water pump and the pure water pump are both interlocked with the electronic density transmitter, and the density of the liquid inside the separation tank can be automatically adjusted by adjusting the amount of salt water or pure water added.
5. The mixed resin efficient automatic separation device according to claim 1, characterized in that: An upper water outlet valve is arranged on the top of the separation tank.
6. The high-efficiency automatic separation device for mixed resin according to claim 1, characterized in that: An upper air inlet valve is arranged on the top of the separation tank, and nitrogen enters the interior of the separation tank through the upper air inlet valve.
7. The mixed resin efficient automatic separation device according to claim 1, characterized in that: A sight glass is also provided in the separation tank and arranged vertically.
8. The mixed resin efficient automatic separation device according to claim 3, characterized in that: A water distributor is provided at the bottom of the separation tank, and the water distributor is connected with the brine valve and the pure water valve through a three-way pipe.
9. The high-efficiency automatic separation device for mixed resin according to claim 1, characterized in that: A laser sensor control component is arranged on one side of the fat discharge valve close to the separation tank, and the laser sensor control component is used to control the automatic opening and closing of the fat discharge valve.
10. The mixed resin efficient automatic separation device according to claim 9, characterized in that: The laser sensing control assembly includes a transparent tube body and a laser emitter and a receiving reflector symmetrically arranged on both sides thereof. When the laser can completely receive reflection, the fat discharge valve is closed; when the laser cannot completely receive reflection, the fat discharge valve is opened.