CN114031140B - Circulating type rare earth wastewater comprehensive treatment system - Google Patents
Circulating type rare earth wastewater comprehensive treatment system Download PDFInfo
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- CN114031140B CN114031140B CN202111401242.8A CN202111401242A CN114031140B CN 114031140 B CN114031140 B CN 114031140B CN 202111401242 A CN202111401242 A CN 202111401242A CN 114031140 B CN114031140 B CN 114031140B
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- 239000002351 wastewater Substances 0.000 title claims abstract description 28
- 229910052761 rare earth metal Inorganic materials 0.000 title claims abstract description 15
- 150000002910 rare earth metals Chemical class 0.000 title abstract description 12
- 238000004821 distillation Methods 0.000 claims abstract description 50
- 239000007788 liquid Substances 0.000 claims abstract description 43
- 239000002253 acid Substances 0.000 claims abstract description 16
- 238000005485 electric heating Methods 0.000 claims abstract description 9
- 238000007599 discharging Methods 0.000 claims abstract description 8
- 238000001816 cooling Methods 0.000 claims description 62
- -1 cyclic rare earth Chemical class 0.000 claims description 13
- 238000009833 condensation Methods 0.000 claims description 12
- 230000005494 condensation Effects 0.000 claims description 12
- 238000001704 evaporation Methods 0.000 description 18
- 230000008020 evaporation Effects 0.000 description 14
- 238000005192 partition Methods 0.000 description 12
- 229920001343 polytetrafluoroethylene Polymers 0.000 description 10
- 239000004810 polytetrafluoroethylene Substances 0.000 description 10
- 238000007790 scraping Methods 0.000 description 8
- 239000000110 cooling liquid Substances 0.000 description 7
- 235000017166 Bambusa arundinacea Nutrition 0.000 description 6
- 235000017491 Bambusa tulda Nutrition 0.000 description 6
- 241001330002 Bambuseae Species 0.000 description 6
- 235000015334 Phyllostachys viridis Nutrition 0.000 description 6
- 239000011425 bamboo Substances 0.000 description 6
- 238000001514 detection method Methods 0.000 description 6
- 238000011084 recovery Methods 0.000 description 6
- 238000005057 refrigeration Methods 0.000 description 6
- 238000003756 stirring Methods 0.000 description 6
- 239000000945 filler Substances 0.000 description 5
- 239000011859 microparticle Substances 0.000 description 5
- 239000000843 powder Substances 0.000 description 5
- KRHYYFGTRYWZRS-UHFFFAOYSA-N Fluorane Chemical compound F KRHYYFGTRYWZRS-UHFFFAOYSA-N 0.000 description 4
- 238000010438 heat treatment Methods 0.000 description 4
- 230000002378 acidificating effect Effects 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 240000007651 Rubus glaucus Species 0.000 description 2
- 235000011034 Rubus glaucus Nutrition 0.000 description 2
- 235000009122 Rubus idaeus Nutrition 0.000 description 2
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000002309 gasification Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 239000002699 waste material Substances 0.000 description 2
- YCKRFDGAMUMZLT-UHFFFAOYSA-N Fluorine atom Chemical compound [F] YCKRFDGAMUMZLT-UHFFFAOYSA-N 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 239000012141 concentrate Substances 0.000 description 1
- 239000002826 coolant Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 229910052731 fluorine Inorganic materials 0.000 description 1
- 239000011737 fluorine Substances 0.000 description 1
- 238000009776 industrial production Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012856 packing Methods 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 238000004065 wastewater treatment Methods 0.000 description 1
Images
Classifications
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/02—Treatment of water, waste water, or sewage by heating
- C02F1/04—Treatment of water, waste water, or sewage by heating by distillation or evaporation
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2103/00—Nature of the water, waste water, sewage or sludge to be treated
- C02F2103/18—Nature of the water, waste water, sewage or sludge to be treated from the purification of gaseous effluents
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P10/00—Technologies related to metal processing
- Y02P10/20—Recycling
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Vaporization, Distillation, Condensation, Sublimation, And Cold Traps (AREA)
- Heat Treatment Of Water, Waste Water Or Sewage (AREA)
Abstract
The invention discloses a circulating type rare earth wastewater comprehensive treatment system which comprises a distillation kettle and a collecting tank, wherein a condensing pipe is connected between the distillation kettle and the collecting tank, a discharge pipe for discharging acid wastewater and a discharge pipe for discharging distillation residual liquid are arranged on the distillation kettle, a plurality of electric heating wires are arranged on the inner side wall of the distillation kettle, a rotating shaft is arranged on the distillation kettle through a fixed frame fixedly connected with the distillation kettle, an air supply fan is arranged at the upper end of the rotating shaft, the rotating shaft is driven by a first motor, a return pipe is also connected between the distillation kettle and the collecting tank, a discharge port is arranged at the lower end of the collecting tank, and the collecting tank is also connected with a vacuum pump.
Description
Technical Field
The invention relates to the technical field of rare earth wastewater treatment, in particular to a circulating type rare earth wastewater comprehensive treatment system.
Background
Rare earth is an important strategic resource which is not renewable in China, various waste water can be generated in the current rare earth industrial production process, wherein a large amount of acid waste water can be generated by spraying and purifying rare earth concentrate roasting tail gas, the fluorine content in the waste water is high, serious pollution can be caused to the environment if the waste water cannot be effectively treated, the current treatment mode of the acid waste water is mainly realized by a reduced pressure distillation recovery process, sulfuric acid and hydrofluoric acid in the acid waste water are separated, but the hydrofluoric acid extracted in the current reduced pressure distillation process can be easily evaporated again, the recovery amount is lost, and the vacuum pump is easily damaged; in addition, the evaporation surface of the existing reduced pressure distillation is only the surface of liquid, the area is small, the evaporation speed is low, and the bumping phenomenon is easy to occur. The invention provides a circulating type rare earth wastewater comprehensive treatment system for solving the problems.
Disclosure of Invention
The invention aims to provide a circulating type rare earth wastewater comprehensive treatment system so as to solve the problems in the background technology.
In order to achieve the above purpose, the present invention provides the following technical solutions: the utility model provides a circulating rare earth waste water integrated treatment system, includes the stills and collects the jar, and is connected with the condenser pipe between stills and the collection jar, and the steam in the stills is after the liquid is condensed into in the condenser pipe, and the liquid of condensation can flow to the collection jar, install the exhaust pipe that is used for discharging into acid waste water on the stills and is used for discharging distillation residual liquid, all install electric valve in exhaust pipe and the discharge pipe, can remote control electric valve's opening and shutting, install a plurality of electric heater silk on the inside wall of stills, the stills is installed the rotation axis through its inside fixedly connected with mount, and mount fixed connection is in the inside of stills, and the rotation axis rotates to be connected on the mount, and the upper end of rotation axis is installed the fan of supplying air, and the rotation axis is driven by first motor, and first motor drives the rotation axis, can stir acid waste liquid, makes the heating more even, and the inside of supplying into the condenser pipe that can be better with steam, still be connected with between stills and the collection jar, can make the stills and jar between the inside that produces circulation flow, make steam better entering into the inside of stills and the inside of collecting the circulation pipe, also can be carried out with the vacuum pump, the inside recovery pump is opened to the vacuum recovery, and the vacuum recovery is carried out to the inside the stills.
Preferably, the outside of condenser pipe has cup jointed spiral first cooling tube, the both ends of first cooling tube communicate with each other with the cooling tank respectively, install a plurality of peltier refrigeration sticks on the lateral wall of cooling tank, the cold junction of refrigeration stick extends to the inside of cooling tank, and the hot junction extends to the outside of cooling tank, and the setting of refrigeration stick can make the inside coolant liquid of cooling tank keep low temperature state always, the back flow winds the hot junction outside of refrigeration stick, and the hot junction of refrigeration stick carries out auxiliary heating to the inside air of back flow, avoids backward flow temperature to hang down and causes the condensation in advance.
Preferably, be connected with between vacuum pump and the collection jar and be equipped with the condenser sleeve pipe, the condenser sleeve pipe includes outer tube and interior sleeve pipe, the upper end that interior sleeve pipe's upper end runs through the outer tube communicates with each other with the collection jar, the upper end side and the vacuum pump interconnect of outer tube, and the junction of outer tube and vacuum pump is higher than interior sleeve pipe's lower extreme, and the vacuum pump can be condensed again when passing through the condenser sleeve pipe from the inside gas that collects the jar in a small amount of acid steam that has, the lower extreme of outer tube is equipped with the discharge port, the second cooling tube of heliciform has also been cup jointed in the outside of outer tube, the both ends of second cooling tube also communicate with each other with the cooling bath respectively.
Preferably, collect the upper end inside of jar and be equipped with the high guide plate of low all around in centre, the fixedly connected with arc board all around of guide plate, one side that the stills was kept away from to the guide plate is equipped with the guide plate, the one end and the guide plate fixed connection of guide plate, the other end and the lateral wall of collecting the jar laminate each other, the diameter of guide plate is greater than the internal diameter of condenser pipe, guide plate and guide plate can make the inside condensate of condenser pipe slowly slide along the inboard of collecting the jar.
Preferably, the inside of collecting the jar rotates and is connected with the bush, and the bush is driven by the second motor, the inside fixedly connected with of bush a plurality of division boards, a plurality of division boards divide into a plurality of spaces with the inside of bush, and the top of bush is equipped with the apron, apron fixed connection is on collecting the inside wall of jar, just be located the guide plate under being equipped with the opening on the apron, its fixedly connected with fixed plate that is located collecting the inside wall of jar of outer end of guide plate, the second motor drives the bush and rotates, can make a plurality of spaces that the division board formed connect gradually the condensate, and the space after the connection can rotate the below of apron, can prevent condensate evaporation loss to a certain extent.
Preferably, the lower end opening of the collecting tank is hinged with an end cover, a boss is fixedly connected to the inner side surface of the end cover, the boss can enable a plurality of spaces formed by a plurality of partition plates to be not communicated with each other when the end cover is closed, and the end cover is controlled to be opened and closed by an electric push rod so as to be controllably transferred.
Preferably, the upper end face of the inner bushing and the lower end face of the fixing plate are inclined planes with high outside and low inside, and the inclined planes can prevent condensate from leaking.
Preferably, a plurality of pointed condensing rods are fixedly connected to the inside of the condensing tube.
Preferably, a lifting cylinder which is vertically communicated is arranged in the distillation kettle, the rotating shaft is connected with a turbine, the lifting cylinder is sleeved outside the turbine, the upper end of the rotating shaft is fixedly connected with a fan plate, and the fan plate is positioned outside the lifting cylinder.
Preferably, a plurality of scrapers are connected to the fan plate, and the outer ends of the scrapers are inclined.
Preferably, the distillation kettle is filled with polytetrafluoroethylene filler.
Compared with the prior art, the invention has the beneficial effects that: according to the invention, through the arrangement of the inner bushing, the partition plate and the cover plate, the partition plate can divide the interior of the inner bushing into a plurality of spaces, and the cover plate can expose one space, so that the extracted condensate can be divided into a plurality of parts, and only one part of condensate is exposed during taking, so that excessive evaporation of the rest condensate can be well avoided; the arrangement of the condensation sleeve can lead the gas pumped by the vacuum pump to be condensed and purified firstly, so that the buffer can be carried out to a certain extent to avoid the damage of the vacuum pump; in addition, the application can adopt the lifting cylinder, the fan plate and the scraping plate to increase the evaporation surface area in a matched manner, so that the distillation efficiency is improved.
Drawings
FIG. 1 is a schematic diagram of the overall structure of the present invention;
FIG. 2 is a schematic view of the structure of the return tube of the present invention;
FIG. 3 is a schematic view showing an installation state of the electric putter of the present invention;
FIG. 4 is a cross-sectional view of a still pot of the present invention;
FIG. 5 is a cross-sectional view of a condenser sleeve of the present invention;
FIG. 6 is a cross-sectional view of a condenser tube of the present invention;
FIG. 7 is a schematic view of a baffle plate according to the present invention;
FIG. 8 is an exploded view of the inner liner and the collection canister of the present invention;
FIG. 9 is a schematic view of the end cap of the present invention in a closed position;
FIG. 10 is a schematic view of an end cap of the present invention in an open position;
FIG. 11 is a schematic diagram of the connection of a first cooling pipe to a cooling pond according to the present invention;
FIG. 12 is a cross-sectional view of a collection canister according to the present invention;
FIG. 13 is a cross-sectional view of a still pot according to example 2 of the present invention;
fig. 14 is an exploded view of a lift cylinder and turbine according to embodiment 2 of the present invention.
In the figure: 1. the distillation still, 2, collecting tank, 3, condenser tube, 4, discharge tube, 5, electric heating wire, 6, rotation shaft, 7, air supply fan, 8, return tube, 9, discharge tube, 10, first cooling tube, 11, vacuum pump, 12, second cooling tube, 13, cooling tank, 14, refrigeration rod, 15, condensation sleeve, 150, outer sleeve, 151, inner sleeve, 16, baffle, 17, arc plate, 18, baffle, 19, fixing frame, 20, first motor, 21, inner liner, 22, partition plate, 23, cover plate, 24, opening, 25, fixing plate, 26, second motor, 27, end cap, 28, boss, 29, condensing rod, 30, chassis, 31, PH detection module, 32, lift pump, 33, liquid level sensor, 34, electric push rod, 35, control module, 36, lift cylinder, 37, turbine, 38, fan plate, 39, scraper blade, 40, filler.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
Please refer to fig. 1-14
Specifically, the outside of condenser pipe 3 has cup jointed spiral first cooling tube 10, the both ends of first cooling tube 10 communicate with each other with cooling pond 13 respectively, and cooling liquid is held to the inside of cooling pond 13, and the one end of first cooling tube 10 communicates with each other with cooling pond 13 through elevator pump 32, can make the cooling liquid constantly circulate in the inside of cooling pond 13 and first cooling tube 10 through elevator pump 32, install a plurality of peltier cooling bars 14 (one end is the hot junction, one end is the cold junction) on the lateral wall of cooling pond 13, the cold junction of cooling bar 14 extends to the inside of cooling pond 13, and the hot junction extends to the outside of cooling pond 13, and the setting of cooling bar 14 can constantly cool down the inside cooling liquid of cooling pond 13, makes the inside cooling liquid of cooling pond 13 keep low temperature state always, thereby can make the temperature around the condenser pipe 3 of first cooling tube 10 better and the inside of cooling pipe 3, makes the condensation effect better, back flow 8 winds in the hot junction outside of cooling bar 14, and the back flow 8 is in the back flow around the cooling bar 14, can make the inside of cooling bar 8 not influence distillation kettle 1 to the inside of cooling bar 14, thereby the distillation kettle can not be influenced by the distillation temperature.
In order to reduce the damage of the vacuum pump 11 caused by the acid steam passing through the vacuum pump 11, a condensation sleeve 15 is arranged, in particular, a condensation sleeve 15 is connected between the vacuum pump 11 and the collecting tank 2, the condensation sleeve 15 comprises an outer sleeve 150 and an inner sleeve 151, the outer sleeve 150 is arranged on the underframe 30, the upper end of the inner sleeve 151 penetrates through the upper end of the outer sleeve 150 and is communicated with the collecting tank 2, the side surface of the upper end of the outer sleeve 150 is connected with the vacuum pump 11, the connection part of the outer sleeve 150 and the vacuum pump 11 is higher than the lower end of the inner sleeve 151, when the vacuum pump 11 works, gas in the inner sleeve 2 firstly enters the outer sleeve 150 through the inner sleeve 151, then moves upwards in the outer sleeve 150 and is finally pumped out by the vacuum pump 11, the lower end of the outer sleeve 150 is provided with a discharge outlet, the outer side of the outer sleeve 150 is also sleeved with a spiral second cooling pipe 12, the two ends of the second cooling pipe 12 are respectively communicated with the cooling tank 13, the second cooling pipe 12 can condense the gas rising inside the outer sleeve 150, the acid steam is condensed and purified, so that the acid steam can be prevented from being damaged, and the electric steam can be discharged through the outer sleeve 150 arranged at the inner end of the electric valve, which is also can control the inner sleeve 150 of the electric valve, and the inner part of the electric valve is arranged;
the lift pump 32 is also installed between the second cooling pipe 12 and the cooling tank 13, so that the cooling liquid can be continuously circulated in the cooling tank 13 and the second cooling pipe 12, and the second cooling pipe 12 can be better cooled around and inside the outer sleeve 150.
In order to prevent a large amount of small liquid drops generated by splashing of condensate when the condensed liquid flows into the collecting tank 2 from the inside of the condensing pipe 3, thereby the condensate is lost due to evaporation of the small liquid drops, a deflector 16 and a deflector 18 are arranged in the upper end of the collecting tank 2, the deflector 16 is in a state of high middle and low periphery, the cooling liquid flowing into the collecting tank 2 through the condensing pipe 3 flows on the deflector 16, the liquid drops splashed by the condensate are greatly reduced because of the short distance between the deflector 16 and the condensing pipe 3, the liquid drops splashed by the condensate all fly into the inside of the condensing pipe 3 because of the low temperature in the inside of the condensing pipe 3, the liquid drops flying into the inside of the condensing pipe 3 are not evaporated and only reflow onto the deflector 16, the guide plate 16 is fixedly connected with a mounting rod, the mounting rod is fixedly connected with the inner side wall of the upper end of the collecting tank 2, the arc plates 17 are fixedly connected around the guide plate 16, one side of the guide plate 16 far away from the distillation kettle 1 is provided with a guide plate 18, one end of the guide plate 18 is fixedly connected with the guide plate 16, the other end is mutually attached to the side wall of the collecting tank 2, the arrangement of the arc plates 17 can prevent condensate flowing onto the guide plate 16 from directly flowing down, but can flow onto the inner side wall of the collecting tank 2 along the guide plate 18, and finally flow down along the inner side wall of the collecting tank 2, so that condensate can be well prevented from splashing in the collecting tank 2, and splashing liquid drops are evaporated and lost, the diameter of the guide plate 16 is larger than the inner diameter of the condensing tube 3, and condensate flowing out of the inner part of the condensing tube 3 only flows onto the guide plate 16.
In order to prevent condensate from evaporating in the interior of the collecting tank 2 and thus causing loss of recovery amount of condensate, an inner liner 21 is provided, specifically, the interior of the collecting tank 2 is rotatably connected with the inner liner 21, the inner liner 21 is driven by a second motor 26, the second motor 26 is mounted on the outer side surface of the collecting tank 2, a motor shaft of the second motor 26 penetrates through the collecting tank 2 to extend into the interior of the collecting tank 2 and is connected with the inner liner 21 through another gear set, the motor shaft of the second motor 26 rotates to drive the inner liner 21 to rotate, a plurality of partition plates 22 are fixedly connected in the interior of the inner liner 21, the partition plates 22 are uniformly and fixedly connected in the interior of the inner liner 21, the interior of the inner liner 21 is divided into a plurality of spaces by the arrangement of the partition plates 22, a cover plate 23 is arranged above the inner liner 21, the cover plate 23 is fixedly connected to the inner side wall of the collecting tank 2, the cover plate 23 is provided with an opening 24 under the guide plate 18, the second motor 26 drives the inner liner 21 to rotate, so that a plurality of spaces inside the inner liner 21 move to the position right under the opening 24 respectively, a liquid level sensor 33 is arranged on the side surface of each partition plate 22, the liquid level of condensate collected inside the space formed by the partition plate 22 can be detected, the current space is filled with condensate when the liquid level sensor 33 detects the liquid level, then the second motor 26 drives the inner liner 21 to rotate (the second motor 26 rotates by a corresponding angle every time is started to enable the inner liner 21 to rotate by a corresponding angle to finish the adjustment of the space formed by the partition plate 22), the space formed by the next partition plate 22 continues to collect condensate, and other spaces that division board 22 formed can rotate to the below of apron 23 (apron 23 can adopt polytetrafluoroethylene's material to laminate with the baffle 22 top surface and form sealing contact), thereby can reduce the condensate that gets again that gets as far as possible evaporates, prevents the excessive loss of condensate, the outer end of guide plate 18 its fixed connection fixed plate 25 that is located on collecting jar 2's the inside wall, the thickness of fixed plate 25 is the same with the thickness of inner liner 21 lateral wall, the outer end of guide plate 18 laminates with fixed plate 25 each other, thereby can make the fine inside of flowing into inner liner 21 along fixed plate 25 and inner liner 21's inside wall of condensate.
Specifically, the lower extreme opening part of collecting jar 2 articulates there is end cover 27, fixedly connected with boss 28 on the medial surface of end cover 27, and end cover 27 is opened and shut by electric putter 34 control, electric putter 34 installs on chassis 30 and articulated each other with chassis 30, electric putter 34's output pole and end cover 27 are articulated each other, can control opening and shutting of end cover 27 through controlling electric putter 34 output pole's flexible, the setting of boss 28 (also can adopt polytetrafluoroethylene's material) can separate the space that a plurality of division boards 22 formed when end cover 27 is closed, can block up the gap department between bush 22 and collecting jar 2 simultaneously, can make the space that a plurality of division boards 22 formed communicate with each other with the external world simultaneously when end cover 27 opens, discharge the condensate that will collect simultaneously.
Specifically, the upper end surface of the inner liner 21 and the lower end surface of the fixing plate 25 are inclined surfaces with high outside and low inside, so that condensate can be well prevented from leaking through the gap between the fixing plate 25 and the inner liner 21 when flowing down from the fixing plate 25.
Specifically, a plurality of pointed condensing rods 29 are fixedly connected to the inside of the condensing tube 3, and the condensing rods 29 can enable steam evaporated in the distillation still 1 to be condensed and then to be quickly collected and dropped. The liquid level sensor 33 is electrically connected with the second motor 26 through a control module 35 installed on the bottom frame 30, and when the liquid level sensor 33 detects the liquid level, a signal can be sent to the control module 35, so that the liquid level sensor controls the second motor 26 to rotate by a corresponding angle, and the adjustment of the inner bushing 21 is completed.
The PH detection module 31, the liquid level sensor 33 and the control module 35 are all of the prior art, so the invention is not described in detail, for example, the PH detection module 31 may be XZ520 type, the liquid level sensor 33 may be XZ-9055 type, and the control module 35 may be raspberry group 4 development board of the raspberry CHM.
The electric heating wire 5, the refrigerating rod 14, the first motor 20, the second motor 26, the PH detection module 31, the lifting pump 32, the liquid level sensor 33, the electric push rod 34 and the control module 35 are respectively communicated with an external power supply through cables, and whether the electric heating wire works or not can be controlled through the on-off of the control circuit.
In example 2, the evaporation rate of the conventional still 1 was limited because the evaporation surface was the area of the liquid surface, and the evaporation surface was blocked from the electric heater wire 5 by a certain volume, so that the bumping phenomenon was also liable to occur, and the structure in the still 1 was changed on the basis of example 1 in order to comprehensively utilize the inner surface of the still 1.
Specifically, install the lift section of thick bamboo 36 that link up from top to bottom in the still 1, the lift section of thick bamboo 36 is installed with still 1 by the annex all around and is connected, connect turbine 37 on the rotation axis 6, the lift section of thick bamboo 36 cup joints in the outside of turbine 37, and turbine 37 can play the effect that the stirring of stirring rake stirs, also can cooperate with lift section of thick bamboo 36 simultaneously, with feed liquid lift section of thick bamboo 36 upper end, pivot 6 upper end fixedly connected with fan plate 38, fan plate 38 is located the outside of lift section of thick bamboo 36, and the feed liquid that promotes can spill on fan plate 38, then scatter downwards, simultaneously because fan plate 38 is connected with pivot 6, drives fan plate 38 rotation along with the operation of pivot 6, and the material liquid that receives on it is influenced by centrifugal force can get rid of to still 1's inner wall, makes it down slide along still 1 to can form the liquid film at still 1's internal surface, make full use of still 1's internal surface area, improves evaporation efficiency.
Further, in order to make the feed liquid thrown onto the distillation still 1 spread evenly and be beneficial to evaporation, the fan plate 38 is connected with a plurality of scraping plates 39, the scraping plates 39 can also be made of polytetrafluoroethylene, fine gaps (1-3 mm for example) are formed between the scraping plates and the distillation still 1, the scraping plates are convenient to scrape and form a film, the evaporation of the liquid is facilitated, the peripheral ring of the outer end of each scraping plate 39 is in an inclined state as shown in fig. 12, and the scraping plates are rotated and scraped and simultaneously descend along the side wall of the distillation still 1, so that the area of the side wall of the distillation still 1 is fully utilized for evaporation.
In addition, in order to increase the gasification point and effectively lift the feed liquid by using the turbine 37, the distillation still 1 is filled with the polytetrafluoroethylene filler 40, and the filler 40 may be polytetrafluoroethylene microparticles (for example, particle size is smaller than 3 mm) or powder, so that the polytetrafluoroethylene microparticles or powder can be lifted from the bottom of the distillation still 1 to the upper part by the turbine 37 more smoothly, the feed liquid in the distillation still 1 is lifted during the lifting process, the feed liquid is lifted, the polytetrafluoroethylene microparticles or powder is thrown to the side wall of the distillation still 1 with the feed liquid, the polytetrafluoroethylene microparticles or powder is scraped off by the scraping action of the scraper 39, and a part of the liquid adheres to the side wall of the distillation still 1 to participate in the subsequent evaporation gasification, and the scraped polytetrafluoroethylene filler 40 () microparticles or powder is reused.
With the structure of example 2, the distillation still 1 can be made into a "thin and tall" still body to improve space utilization.
Working principle: when the distiller is used, acidic wastewater to be treated is discharged into the distiller 1, then the vacuum pump 11 is started to reduce the air pressure in the distiller 1 and the collecting tank 2, then the electric heating wire 5 and the first motor 20 can be started, the electric heating wire 5 can distill the acidic wastewater in the distiller 1, the first motor 20 can drive the rotating shaft 6 to rotate, so that the acidic wastewater can be distilled better, steam at the distilled position can enter the condenser tube 3 better, the steam can be condensed into liquid after entering the condenser tube 3 and flows onto the guide disc 16, and then flows into the inner bushing 21 along the guide plate 18 and the fixing plate 25;
when all the spaces formed by the partition plate 22 are filled with the cooling liquid, the air pressure inside the distillation still 1 and the collecting tank 2 is recovered to be normal through the pressure release valve, then the electric valves on the discharge pipe 9 and the discharge port of the outer sleeve 150 are opened, and meanwhile, the cover plate 23 is opened through the electric push rod 28, so that the distillation residual liquid and the condensate are discharged together, wherein the packing 40 can be recycled.
Although embodiments of the present 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 therein without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (4)
1. The utility model provides a circulating tombarthite waste water integrated treatment system, includes still (1) and collects jar (2), and is connected with condenser pipe (3), its characterized in that between still (1) and the collection jar (2): the distillation apparatus comprises a distillation kettle (1), wherein a discharge pipe (4) for discharging acid wastewater and a discharge pipe (9) for discharging distillation residual liquid are arranged on the distillation kettle (1), a plurality of electric heating wires (5) are arranged on the inner side wall of the distillation kettle (1), a rotating shaft (6) is arranged on the distillation kettle (1) through a fixing frame (19) fixedly connected with the distillation kettle, an air supply fan (7) is arranged at the upper end of the rotating shaft (6), the rotating shaft (6) is driven by a first motor (20), a return pipe (8) is further connected between the distillation kettle (1) and a collection tank (2), a discharge port is arranged at the lower end of the collection tank (2), and the collection tank (2) is further connected with a vacuum pump (11); the utility model discloses a collecting tank (2), including collecting tank (2), baffle (16), baffle (18), cover plate (23) fixedly connected with is equipped with on the inside wall of collecting tank (2), the one end and baffle (16) fixedly connected with of baffle (18), the other end is laminated each other with the lateral wall of collecting tank (2), the diameter of baffle (16) is greater than the internal diameter of condenser tube (3), the inside rotation of collecting tank (2) is connected with inner liner (21), and inner liner (21) is driven by second motor (26), the inside fixedly connected with division board (22) of inner liner (21), the top of inner liner (21) is equipped with apron (23), apron (23) fixedly connected with is on the inside wall of collecting tank (2), be located on the apron (23) and be located under baffle (18) and be equipped with opening (24), the outer end of baffle (18) its be located the inside wall of collecting tank (2) on fixedly connected with electric end cover plate (27), the end cover plate (27) is connected with the end cover (27) by the fixed end cover (27), the upper end face of the inner bushing (21) and the lower end face of the fixing plate (25) are inclined planes with high outside and low inside.
2. The cyclic rare earth wastewater comprehensive treatment system according to claim 1, wherein: the utility model discloses a cooling device, including condenser pipe (3), cooling back pipe (8), cooling back pipe (13) and cooling back pipe, spiral first cooling pipe (10) has been cup jointed in the outside of condenser pipe (3), the both ends of first cooling pipe (10) communicate with each other with cooling pond (13) respectively, install a plurality of peltier cooling bars (14) on the lateral wall of cooling pond (13), the inside that the cold junction of cooling bar (14) extends to cooling pond (13), the outside that the hot junction extends to cooling pond (13), back pipe (8) are around the hot junction outside of cooling bar (14).
3. The cyclic rare earth wastewater comprehensive treatment system according to claim 1, wherein: be connected with between vacuum pump (11) and the collection jar (2) and be equipped with condensation sleeve (15), condensation sleeve (15) include outer tube (150) and interior sleeve pipe (151), the upper end of interior sleeve pipe (151) runs through the upper end of outer tube (150) and is communicated with each other with collection jar (2), the upper end side and the vacuum pump (11) interconnect of outer tube (150), and the junction of outer tube (150) and vacuum pump (11) is higher than the lower extreme of interior sleeve pipe (151), the lower extreme of outer tube (150) is equipped with the discharge port, spiral second cooling tube (12) have also been cup jointed in the outside of outer tube (150), the both ends of second cooling tube (12) also communicate with each other with cooling bath (13) respectively.
4. The cyclic rare earth wastewater comprehensive treatment system according to claim 1, wherein: a plurality of pointed condensing rods (29) are fixedly connected inside the condensing tube (3).
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| CN202111401242.8A CN114031140B (en) | 2021-11-24 | 2021-11-24 | Circulating type rare earth wastewater comprehensive treatment system |
| CN202310858173.6A CN116692984A (en) | 2021-11-24 | 2021-11-24 | Rare earth wastewater treatment system |
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| CN202111401242.8A CN114031140B (en) | 2021-11-24 | 2021-11-24 | Circulating type rare earth wastewater comprehensive treatment system |
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| CN115193146B (en) * | 2022-07-14 | 2024-01-12 | 内蒙古恒业成有机硅有限公司 | Dimethyl dichlorosilane hydrolysis oil-water layering tank |
| CN115232993B (en) * | 2022-08-10 | 2023-09-05 | 江西万弘高新技术材料有限公司 | Low-concentration rare earth feed liquid enrichment and purification device |
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| CN114031140A (en) | 2022-02-11 |
| CN116692984A (en) | 2023-09-05 |
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