CN114031140A - Circulating type rare earth wastewater comprehensive treatment system - Google Patents
Circulating type rare earth wastewater comprehensive treatment system Download PDFInfo
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- CN114031140A CN114031140A CN202111401242.8A CN202111401242A CN114031140A CN 114031140 A CN114031140 A CN 114031140A CN 202111401242 A CN202111401242 A CN 202111401242A CN 114031140 A CN114031140 A CN 114031140A
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- jar
- guide plate
- pipe
- rare earth
- collecting tank
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- 239000002351 wastewater Substances 0.000 title claims abstract description 35
- 229910052761 rare earth metal Inorganic materials 0.000 title claims abstract description 19
- 150000002910 rare earth metals Chemical class 0.000 title claims abstract description 19
- 238000004821 distillation Methods 0.000 claims abstract description 73
- 239000002253 acid Substances 0.000 claims abstract description 11
- 238000005485 electric heating Methods 0.000 claims abstract description 11
- 238000007599 discharging Methods 0.000 claims abstract description 9
- 238000001816 cooling Methods 0.000 claims description 50
- 238000009833 condensation Methods 0.000 claims description 19
- 230000005494 condensation Effects 0.000 claims description 19
- 238000005192 partition Methods 0.000 claims description 17
- 238000005057 refrigeration Methods 0.000 claims description 11
- BGOFCVIGEYGEOF-UJPOAAIJSA-N helicin Chemical compound O[C@@H]1[C@@H](O)[C@H](O)[C@@H](CO)O[C@H]1OC1=CC=CC=C1C=O BGOFCVIGEYGEOF-UJPOAAIJSA-N 0.000 claims description 2
- 239000007788 liquid Substances 0.000 abstract description 49
- 238000001704 evaporation Methods 0.000 description 15
- 230000008020 evaporation Effects 0.000 description 13
- 230000002378 acidificating effect Effects 0.000 description 10
- 239000000463 material Substances 0.000 description 10
- -1 polytetrafluoroethylene Polymers 0.000 description 10
- 229920001343 polytetrafluoroethylene Polymers 0.000 description 10
- 239000004810 polytetrafluoroethylene Substances 0.000 description 10
- 239000000110 cooling liquid Substances 0.000 description 7
- 238000001514 detection method Methods 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
- 239000000945 filler Substances 0.000 description 4
- 239000011859 microparticle Substances 0.000 description 4
- 238000003756 stirring Methods 0.000 description 4
- 238000009434 installation Methods 0.000 description 3
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 description 2
- 230000009471 action Effects 0.000 description 2
- 230000008901 benefit Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 238000011084 recovery Methods 0.000 description 2
- 238000007790 scraping Methods 0.000 description 2
- PXGOKWXKJXAPGV-UHFFFAOYSA-N Fluorine Chemical compound FF PXGOKWXKJXAPGV-UHFFFAOYSA-N 0.000 description 1
- 241001092459 Rubus Species 0.000 description 1
- 240000007651 Rubus glaucus Species 0.000 description 1
- 235000011034 Rubus glaucus Nutrition 0.000 description 1
- 235000009122 Rubus idaeus Nutrition 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 230000004888 barrier function Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000012141 concentrate Substances 0.000 description 1
- 239000002826 coolant Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 239000010419 fine particle Substances 0.000 description 1
- 229910052731 fluorine Inorganic materials 0.000 description 1
- 239000011737 fluorine Substances 0.000 description 1
- 238000002309 gasification Methods 0.000 description 1
- 238000003306 harvesting Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000009776 industrial production Methods 0.000 description 1
- 239000012528 membrane Substances 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
- 230000000630 rising effect Effects 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 238000009834 vaporization Methods 0.000 description 1
- 230000008016 vaporization Effects 0.000 description 1
- 239000002699 waste material Substances 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, an inlet pipe for discharging acid wastewater and an outlet 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 fixing frame fixedly connected with the distillation kettle, a gas delivery 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 formed 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 precious and non-renewable in China, various waste water can be generated in the current rare earth industrial production process, wherein the rare earth concentrate roasting tail gas is sprayed and purified to generate a large amount of acidic waste water, the content of fluorine in the waste water is higher, if the waste water cannot be effectively treated, the environment can be seriously polluted, most of the current treatment modes for the acidic waste water are processes for recovering sulfuric acid and hydrofluoric acid in the acidic waste water by reduced pressure distillation, but the extracted hydrofluoric acid in the current reduced pressure distillation process can be easily evaporated again, so that the recovery quantity is lost, and a vacuum pump is easily damaged; in addition, in the existing reduced pressure distillation, the evaporation surface is only the liquid surface, the area is small, the evaporation speed is slow, 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 to solve the problems in the background technology.
In order to achieve the purpose, the invention provides the following technical scheme: a circulating rare earth wastewater comprehensive treatment system comprises a distillation still and a collecting tank, wherein a condensing pipe is connected between the distillation still and the collecting tank, steam in the distillation still is condensed into liquid in the condensing pipe, the condensed liquid can flow to the collecting tank, a discharge pipe for discharging acidic wastewater and a discharge pipe for discharging distilled residual liquid are arranged on the distillation still, electric valves are arranged in the discharge pipe and the discharge pipe, the opening and closing of the electric valves can be controlled remotely, a plurality of electric heating wires are arranged on the inner side wall of the distillation still, a rotating shaft is arranged on the distillation still through a fixing frame fixedly connected with the distillation still, the fixing frame is fixedly connected in the distillation still, the rotating shaft is rotatably connected on the fixing frame, a gas sending fan is arranged at the upper end of the rotating shaft, the rotating shaft is driven by a first motor, the first motor drives the rotating shaft to rotate, and can stir the acidic wastewater, make the heating more even, the fan of supplying air can be with the better inside of sending into the condenser pipe of steam, stills with collect and still be connected with the back flow between the jar, the back flow can make stills with collect and produce the air current that the circulation flows between the jar, make the better inside of getting into the condenser pipe of steam, also let the partial noncondensable steam backward flow carry out the circulation distillation process again simultaneously, the lower extreme of collecting the jar is opened there is the discharge port, the collecting the jar still with vacuum pump interconnect, the vacuum pump can reduce stills and the inside atmospheric pressure of collecting the jar.
Preferably, the first cooling tube of heliciform has been cup jointed in the outside of condenser pipe, the both ends of first cooling tube communicate with each other with the cooling bath respectively, install a plurality of paler's subsides refrigeration stick on the lateral wall of cooling bath, the cold junction of refrigeration stick extends to the inside of cooling bath, and the hot junction extends to the outside of cooling bath, and the setting of refrigeration stick can make the inside coolant liquid of cooling bath keep the low temperature state always, the back flow is around in the hot junction outside of refrigeration stick, and the hot junction of refrigeration stick carries out the boosting to the inside air of back flow, avoids the backward flow temperature to hang down and causes condensation in advance.
Preferably, the vacuum pump with collect and be connected with between the jar and be equipped with condenser pipe, condenser pipe includes outer tube and interior sleeve pipe, interior sheathed tube upper end is run through the upper end of outer tube and is collected the jar and communicate with each other, 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 sheathed tube lower extreme, and the vacuum pump has a small amount of acid steam to be condensed once more when through condenser pipe in collecting the gas of jar inside extraction, the lower extreme of outer tube is equipped with the discharge port, spiral helicine second cooling tube 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, the inside guiding plate that is equipped with middle height low all around of upper end of collection jar, the fixedly connected with arc board all around of guiding plate, one side that stills were kept away from to the guiding plate is equipped with the guide plate, the one end and the guiding plate fixed connection of guide plate, the other end and the lateral wall of collection jar are laminated each other, the diameter of guiding plate is greater than the internal diameter of condenser pipe, and guiding plate and guide plate can make the inside condensate of condenser pipe along the inboard slow landing of collection jar.
Preferably, the interior of the collecting tank is rotatably connected with an inner bushing, the inner bushing is driven by a second motor, the interior of the inner bushing is fixedly connected with a plurality of partition plates, the interior of the inner bushing is divided into a plurality of spaces by the partition plates, a cover plate is arranged above the inner bushing, the cover plate is fixedly connected to the inner side wall of the collecting tank, an opening is formed in the cover plate and is located under the guide plate, a fixed plate is fixedly connected to the outer end of the guide plate and located on the inner side wall of the collecting tank, the second motor drives the inner bushing to rotate, the spaces formed by the partition plates can be sequentially connected with the condensate, the connected spaces can rotate to the lower portion of the cover plate, and evaporation loss of the condensate can be prevented 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 the 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 a high outer part and a low inner part, and the inclined planes can prevent condensate from leaking.
Preferably, a plurality of tip-shaped condensation rods are fixedly connected to the inside of the condensation pipe.
Preferably, a lifting cylinder which is communicated up and down is installed in the distillation kettle, the rotating shaft is connected with the 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 located outside the lifting cylinder.
Preferably, the fan plate is connected with a plurality of scrapers, and the outer ends of the scrapers are inclined.
Preferably, the distillation kettle is filled with a filler made of polytetrafluoroethylene.
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 the condensate can be exposed when the condensate is taken, so that excessive evaporation of the rest condensate can be well avoided; the gas pumped out by the vacuum pump can be condensed and purified firstly through the arrangement of the condensation sleeve, so that the vacuum pump can be buffered to a certain extent and prevented from being damaged; in addition, the evaporation surface area can be increased by adopting the lifting cylinder, the fan plate and the scraper plate to be matched, and the distillation efficiency is improved.
Drawings
FIG. 1 is a schematic view of the overall structure of the present invention;
FIG. 2 is a schematic view of the structure of the return pipe of the present invention;
FIG. 3 is a schematic view of the installation state of the electric putter of the present invention;
FIG. 4 is a cross-sectional view of a still pot according to the present invention;
FIG. 5 is a cross-sectional view of a condensing sleeve of the present invention;
FIG. 6 is a cross-sectional view of a condenser tube according to the present invention;
fig. 7 is a schematic structural view of a diaphragm of the present invention;
FIG. 8 is an exploded view of the inner liner and collection tank of the present invention;
FIG. 9 is a schematic view of the end closure of the present invention in a closed position;
FIG. 10 is a schematic view of the end closure of the present invention in an open position;
FIG. 11 is a schematic view of the connection of a first cooling tube to a cooling bath according to the present invention;
FIG. 12 is a cross-sectional view of the invention at the harvest tank;
FIG. 13 is a sectional view of a still pot according to example 2 of the present invention;
fig. 14 is an exploded view of the lifting cylinder and the turbine in embodiment 2 of the present invention.
In the figure: 1. a distillation still, 2, a collecting tank, 3, a condenser pipe, 4, a discharge pipe, 5, an electric heating wire, 6, a rotating shaft, 7, a gas sending fan, 8, a return pipe, 9, a discharge pipe, 10, a first cooling pipe, 11, a vacuum pump, 12, a second cooling pipe, 13, a cooling pool, 14, a refrigerating rod, 15, a condenser sleeve, 150, an outer sleeve, 151, an inner sleeve, 16, a flow guide disc, 17, an arc plate, 18, a flow guide plate, 19, a fixing frame and 20, the device comprises a first motor, a second motor, an inner bushing, a first motor, a second motor, a third motor, a fourth motor, a fifth motor, a fourth motor sixth motor, a fifth motor sixth motor, a fourth motor, a fifth motor sixth, a fourth motor sixth, a motor sixth, a fourth motor sixth, a fourth motor sixth, a fifth, a motor sixth, a motor, a fifth, a sixth, a fifth, a sixth, a fifth, a sixth, a.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Please refer to FIGS. 1-14
Specifically, a spiral first cooling tube 10 is sleeved on the outer side of the condensation tube 3, two ends of the first cooling tube 10 are respectively communicated with a cooling pool 13, cooling liquid is contained in the cooling pool 13, one end of the first cooling tube 10 is communicated with the cooling pool 13 through a lift pump 32, the cooling liquid can be continuously circulated in the cooling pool 13 and the first cooling tube 10 through the lift pump 32, a plurality of peltier cooling bars 14 (one end is a hot end and the other end is a cold end) are installed on the side wall of the cooling pool 13, the cold end of each cooling bar 14 extends to the inside of the cooling pool 13, the hot end extends to the outside of the cooling pool 13, the cooling bars 14 can continuously cool the cooling liquid in the cooling pool 13, so that the cooling liquid in the cooling pool 13 is always kept at a low temperature state, and the temperature around the condensation tube 3 and in the condensation tube 3 can be better reduced by the first cooling tube 10, make the condensation effect better, back flow 8 is around the hot junction outside of refrigeration stick 14, and back flow 8 is being walked around the hot junction of refrigeration stick 14, can make the hot junction of refrigeration stick 14 heat the inside gas of back flow 8 to can not influence the inside temperature of stills 1, avoid the subcooling to condense in advance and influence the distillation.
In order to reduce the damage of the acid vapor to the vacuum pump 11 caused by the vacuum pump 11, a condensation sleeve 15 is provided, specifically, the condensation sleeve 15 is connected between the vacuum pump 11 and the collection tank 2, the condensation sleeve 15 comprises an outer sleeve 150 and an inner sleeve 151, the outer sleeve 150 is mounted on the bottom frame 30, the upper end of the inner sleeve 151 penetrates through the upper end of the outer sleeve 150 and is communicated with the collection tank 2, the upper end side of the outer sleeve 150 is connected with the vacuum pump 11, the joint 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, the gas inside the collection tank 2 enters the outer sleeve 150 through the inner sleeve 151 first, 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 port, and a spiral second cooling pipe 12 is also sleeved outside the outer sleeve 150, the two ends of the second cooling pipe 12 are also respectively communicated with the cooling tank 13, the second cooling pipe 12 can condense the gas rising inside the outer sleeve 150, and condense and purify the acidic steam therein, so that the acidic steam can be prevented from damaging the vacuum pump 11, an electric valve is also arranged inside the discharge port at the lower end of the outer sleeve 150, and the discharge of the condensate inside the outer sleeve 150 can be controlled by controlling the opening and closing of the electric valve on the outer sleeve 150;
a 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 better cool the periphery and the inside of the outer sleeve 150.
In order to prevent condensed liquid from splashing to generate a large amount of small liquid droplets when flowing into the collecting tank 2 from the inside of the condensing pipe 3, so that the small liquid droplets are evaporated to cause loss of the condensed liquid, a flow guide plate 16 and a flow guide plate 18 are arranged, a flow guide plate 16 with a high middle part and a low periphery is arranged inside the upper end of the collecting tank 2, the flow guide plate 16 is in an inclined state with a high middle part, the cooling liquid entering the collecting tank 2 through the condensing pipe 3 flows on the flow guide plate 16, the liquid droplets splashed by the condensed liquid are greatly reduced because the distance between the flow guide plate 16 and the condensing pipe 3 is short, the liquid droplets splashed by the condensed liquid on the flow guide plate 16 all fly into the inside of the condensing pipe 3, and the liquid droplets splashed by the condensed liquid on the flow guide plate 16 are not evaporated because the temperature inside the condensing pipe 3 is low, and only flow onto the flow guide plate 16 again, fixedly connected with installation pole on the guiding disk 16, installation pole and the upper end inside wall fixed connection who collects jar 2, the fixedly connected with arc board 17 all around of guiding disk 16, one side that stills 1 was kept away from to guiding disk 16 is equipped with guide plate 18, the one end and the guiding disk 16 fixed connection of guide plate 18, the other end and the lateral wall of collecting jar 2 laminate each other, the setting of arc board 17 can make the condensate that flows on guiding disk 16 can not directly flow down, but can flow on collecting jar 2's inside wall along guide plate 18, flow down along collecting jar 2's inside wall at last, can be fine avoid the condensate to produce in collecting jar 2's inside and splash to the liquid drop evaporation loss that leads to splashing, the diameter of guiding disk 16 is greater than the internal diameter of condenser pipe 3, the inside condensate that flows of condenser pipe 3 all can only flow on guiding disk 16.
In order to prevent the condensate from evaporating in the interior of the collecting tank 2 and causing loss of the condensate recovery amount, an inner bushing 21 is provided, specifically, the inner bushing 21 is rotatably connected to the interior of the collecting tank 2, the inner bushing 21 is driven by a second motor 26, the second motor 26 is installed on the outer side surface of the collecting tank 2, a motor shaft of the second motor 26 penetrates through the collecting tank 2 and extends to the interior of the collecting tank 2, and is connected with the inner bushing 21 through another gear set, the motor shaft of the second motor 26 is rotated to drive the inner bushing 21 to rotate, a plurality of partition plates 22 are fixedly connected to the interior of the inner bushing 21, the plurality of partition plates 22 are uniformly and fixedly connected to the interior of the inner bushing 21, the partition plates 22 are provided to divide the interior of the inner bushing 21 into a plurality of spaces, a cover plate 23 is provided above the inner bushing 21, the cover plate 23 is fixedly connected to the inner side wall of the collecting tank 2, an opening 24 is formed in the cover plate 23 and is positioned right below the guide plate 18, the second motor 26 drives the inner bushing 21 to rotate, a plurality of spaces in the inner bushing 21 respectively move to positions right below the opening 24, a liquid level sensor 33 is mounted on the side surface of each partition plate 22, the liquid level height of condensate collected in the space formed by the partition plates 22 can be detected, when the liquid level sensor 33 detects the liquid level, the current space is full of the condensate, then the second motor 26 drives the inner bushing 21 to rotate (the second motor 26 rotates by a corresponding angle each time when being started, so that the inner bushing 21 rotates by a corresponding angle, the space formed by the partition plates 22 is adjusted), the space formed by the next partition plate 22 continues to receive the condensate, and other spaces formed by the partition plates 22 rotate to positions below the cover plate 23 (the cover plate 23 can be attached to the top surfaces of the partition plates 22 by polytetrafluoroethylene to form sealing contact), therefore, the re-evaporation of the collected condensate can be reduced as much as possible, the excessive loss of the condensate is prevented, the outer end of the guide plate 18 is fixedly connected with the fixing plate 25 on the inner side wall of the collecting tank 2, the thickness of the fixing plate 25 is the same as that of the side wall of the inner bushing 21, and the outer end of the guide plate 18 is mutually attached to the fixing plate 25, so that the condensate can well flow into the inner bushing 21 along the fixing plate 25 and the inner side wall of the inner bushing 21.
Specifically, the lower extreme opening part of receiving 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 controlled by electric putter 34 and opens and shuts, electric putter 34 is installed on chassis 30 and is 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 the flexible of control electric putter 34 output pole, the setting of boss 28 (also can adopt the material of polytetrafluoroethylene) can be when end cover 27 is closed with the space separation that a plurality of division boards 22 formed, can be simultaneously with neck bush 22 with collect the gap department jam between jar 2, 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, the condensate of will collecting is discharged simultaneously.
Specifically, the upper end surface of the inner bushing 21 and the lower end surface of the fixing plate 25 are both inclined surfaces with a high outer part and a low inner part, and the leakage of the condensate through the gap between the fixing plate 25 and the inner bushing 21 can be well prevented by adopting the arrangement.
Specifically, a plurality of pointed condensation rods 29 are fixedly connected to the inside of the condensation pipe 3, and the condensation rods 29 are arranged so that the steam evaporated inside the distillation still 1 can be condensed and then quickly collected and dropped. The liquid level sensor 33 is electrically connected to the second motor 26 through a control module 35 mounted on the bottom frame 30, and when the liquid level sensor 33 detects the liquid level, the liquid level sensor can send a signal to the control module 35 to control the second motor 26 to rotate by a corresponding angle, so as to complete the adjustment of the inner liner 21.
The PH detection module 31, the liquid level sensor 33 and the control module 35 are all the prior art, so the present invention is not described in detail, for example, the PH detection module 31 may adopt an XZ520 model, the liquid level sensor 33 may adopt an XZ-9055 model, and the control module 35 may adopt a raspberry pi 4 development board of the rubus creation 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 a control circuit.
In example 2, since the evaporation surfaces of the conventional distillation still 1 are all the areas of the liquid surface, the evaporation rate is restricted by the areas, and the bumping phenomenon is likely to occur because a certain volume of barrier exists between the evaporation surfaces and the electric heating wire 5, the structure in the distillation still 1 is changed from that of example 1 in order to comprehensively utilize the inner surfaces of the distillation still 1.
Specifically, a vertically through lifting cylinder 36 is installed in the distillation still 1, the lifting cylinder 36 is installed and connected with the distillation still 1 through surrounding accessories, a turbine 37 is connected to the rotating shaft 6, the lifting cylinder 36 is sleeved outside the turbine 37, the turbine 37 can play a role of stirring by a stirring paddle, and can be matched with the lifting cylinder 36 to lift the material liquid to the upper end of the lifting cylinder 36, a fan plate 38 is fixedly connected to the upper end of the rotating shaft 6, the fan plate 38 is located outside the lifting cylinder 36, the material liquid lifted by the turbine 37 can be scattered on the fan plate 38 and then scattered downwards, meanwhile, as the fan plate 38 is connected with the rotating shaft 6, the fan plate 38 is driven to rotate along with the operation of the rotating shaft 6, and the material liquid on the fan plate can be thrown to the inner wall of the distillation still 1 under the influence of centrifugal force, so that the material liquid can slide downwards along the inside the distillation still 1, thereby forming a liquid film on the inner surface of the distillation still 1, the inner surface area of the distillation kettle 1 is fully utilized, and the evaporation efficiency is improved.
Further, in order to let the feed liquid that gets rid of on still 1 can pave all with, do benefit to the evaporation, be connected with a plurality of scraper blades 39 on the sector board 38, scraper blade 39 also can adopt polytetrafluoroethylene's material, and still 1 between have slight clearance (for example 1-3mm), conveniently scrape and move the membrane, do benefit to the liquid evaporation, just scraper blade 39's outer end border is the tilt state as shown in fig. 12, lets it descend along still 1 lateral wall when rotatory scraping to make full use of still 1 lateral wall area evaporates.
In addition, in order to increase the vaporization point and effectively lift the feed liquid by the turbine 37, the distillation still 1 is filled with polytetrafluoroethylene filler 40, the filler 40 may be polytetrafluoroethylene microparticles (e.g. with a particle size less than 3mm) or powder, so that the material liquid in the distillation kettle 1 can be more smoothly lifted from the bottom to the upper part of the distillation kettle 1 by the turbine 37, and the micro-particles or powder made of the polytetrafluoroethylene can carry the material liquid in the distillation kettle 1 in the lifting process, thereby lifting the feed liquid, throwing the feed liquid carried by the micro-particles or powder made of the polytetrafluoroethylene material to the side wall of the distillation kettle 1, and the scraping action of the scraper 39 scrapes the micro-particles or powder of the polytetrafluoroethylene material, and part of the liquid is attached to the side wall of the distillation kettle 1 to participate in the subsequent evaporation and gasification, the scraped polytetrafluoroethylene filler 40() fine particles or powder are recycled.
For the structure of embodiment 2, the distillation still 1 can be made into a thin and high still body so as to improve the space utilization rate.
The working principle is as follows: when the acid wastewater distiller is used, acid 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 acid wastewater in the distiller 1, the first motor 20 can drive the rotating shaft 6 to rotate, the acid wastewater can be better distilled, steam at the distilled part can better enter the condenser pipe 3, the steam can be condensed into liquid and flows onto the flow guide disc 16 after entering the condenser pipe 3, and then the liquid can flow into the inner lining 21 along the flow 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 pressure inside the distillation still 1 and the collecting tank 2 is recovered to be normal through the pressure relief valve, then the electric valves on the discharge pipe 9 and the discharge port of the outer sleeve 150 are opened, and the cover plate 23 is opened through the electric push rod 28, so that the distillation residual liquid and the condensate liquid are discharged together, wherein the packing 40 can be recycled.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (8)
1. The utility model provides a circulating tombarthite waste water integrated processing system, includes stills (1) and collects jar (2), and stills (1) with collect and be connected with condenser pipe (3) between jar (2), its characterized in that: install on stills (1) and be used for discharging into the discharge pipe (9) of the income pipe (4) of acid waste water and be used for discharging the distillation raffinate, install a plurality of electric heating wire (5) on the inside wall of stills (1), rotation axis (6) are installed through mount (19) that its inside fixed connection has in stills (1), and air supply fan (7) are installed to the upper end of rotation axis (6), and rotation axis (6) are driven by first motor (20), still be connected with back flow (8) between stills (1) and collection jar (2), the lower extreme of collection jar (2) is opened there is the discharge port, collection jar (2) still with vacuum pump (11) interconnect.
2. The circular type rare earth wastewater comprehensive treatment system according to claim 1, characterized in that: spiral first cooling tube (10) have been cup jointed in the outside of condenser pipe (3), the both ends of first cooling tube (10) communicate with each other with cooling bath (13) respectively, install a plurality of peltier refrigeration stick (14) on the lateral wall of cooling bath (13), the cold junction of refrigeration stick (14) extends to the inside of cooling bath (13), and the hot junction extends to the outside of cooling bath (13), back flow (8) are around in the hot junction outside of refrigeration stick (14).
3. The circular type rare earth wastewater comprehensive treatment system according to claim 1, characterized in that: vacuum pump (11) with collect and be connected with between jar (2) and be equipped with condenser tube (15), condenser tube (15) include outer tube (150) and interior sleeve pipe (151), the upper end that outer tube (150) was run through to the upper end of interior sleeve pipe (151) communicates with each other with receipts jar (2), the upper end side and 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 helicine 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 circular type rare earth wastewater comprehensive treatment system according to claim 1, characterized in that: the utility model discloses a distillation kettle, including receiving jar (2), the upper end of receiving jar (2) is inside to be equipped with in the middle of high flow guide plate (16) that hangs down all around, flow guide plate (16) fixedly connected with arc board (17) all around, one side that still (1) was kept away from in flow guide plate (16) is equipped with guide plate (18), the one end and flow guide plate (16) fixed connection of guide plate (18), the other end and the lateral wall of receiving jar (2) laminate each other, the diameter of flow guide plate (16) is greater than the internal diameter of condenser pipe (3).
5. The circular type rare earth wastewater comprehensive treatment system according to claim 4, characterized in that: the inner rotating part of the collecting tank (2) is connected with an inner bushing (21), the inner bushing (21) is driven by a second motor (26), a plurality of partition plates (22) are fixedly connected to the inner part of the inner bushing (21), a cover plate (23) is arranged above the inner bushing (21), the cover plate (23) is fixedly connected to the inner side wall of the collecting tank (2), an opening (24) is formed in the cover plate (23) and located under the guide plate (18), and a fixing plate (25) is fixedly connected to the inner side wall of the collecting tank (2) at the outer end of the guide plate (18).
6. The circular type rare earth wastewater comprehensive treatment system according to claim 5, characterized in that: an opening at the lower end of the collecting tank (2) is hinged with an end cover (27), a boss (28) is fixedly connected to the inner side surface of the end cover (27), and the opening and closing of the end cover (27) are controlled by an electric push rod (34).
7. The circular type rare earth wastewater comprehensive treatment system according to claim 5, characterized in that: the upper end surface of the inner bushing (21) and the lower end surface of the fixing plate (25) are inclined surfaces with high outside and low inside.
8. The circular type rare earth wastewater comprehensive treatment system according to claim 1, characterized in that: a plurality of tip-shaped condensation rods (29) are fixedly connected inside the condensation pipe (3).
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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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Cited By (2)
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| CN115193146A (en) * | 2022-07-14 | 2022-10-18 | 内蒙古恒业成有机硅有限公司 | Oil-water layering tank for hydrolysis of dimethyldichlorosilane |
| CN115232993A (en) * | 2022-08-10 | 2022-10-25 | 江西万弘高新技术材料有限公司 | Enrichment and purification device for low-concentration rare earth feed liquid |
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| CN115193146A (en) * | 2022-07-14 | 2022-10-18 | 内蒙古恒业成有机硅有限公司 | Oil-water layering tank for hydrolysis of dimethyldichlorosilane |
| 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 |
| CN115232993A (en) * | 2022-08-10 | 2022-10-25 | 江西万弘高新技术材料有限公司 | Enrichment and purification device for low-concentration rare earth feed liquid |
| 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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| CN116692984A (en) | 2023-09-05 |
| CN114031140B (en) | 2023-06-06 |
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