CN105477894B - Cu, Ni and Co electrodeposition, electrolyte evaporation concentration device - Google Patents
Cu, Ni and Co electrodeposition, electrolyte evaporation concentration device Download PDFInfo
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- CN105477894B CN105477894B CN201610044588.XA CN201610044588A CN105477894B CN 105477894 B CN105477894 B CN 105477894B CN 201610044588 A CN201610044588 A CN 201610044588A CN 105477894 B CN105477894 B CN 105477894B
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D1/00—Evaporating
- B01D1/28—Evaporating with vapour compression
- B01D1/2803—Special features relating to the vapour to be compressed
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D1/00—Evaporating
- B01D1/28—Evaporating with vapour compression
- B01D1/2896—Control, regulation
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Abstract
The invention discloses a kind of Cu, Ni and Co electrodeposition, electrolyte evaporation concentration device.The steam outlet on evaporating kettle top is connected to vapour-recovery unit, and condensed water collecting device is connected to after the pipeline that vapour-recovery unit inputs vapor heat exchanger and medium output vapor heat exchanger through medium respectively；The medium material liquid outlet of evaporating kettle bottom exports another pipeline of vapor heat exchanger, circulating pump, medium input another pipeline of vapor heat exchanger through medium successively and is connected to evaporating kettle, and medium output another tube outlet of vapor heat exchanger connects condensing crystallizing groove through slurries pump；Evaporating kettle is provided with detection means, and the condensed water pump of condensed water collecting device connects the pipeline of medium pre-add heat exchanger one, and medium pre-add heat exchanger another way pipeline input medium feed liquid simultaneously connects evaporating kettle and circulating pump respectively.The present invention carries out secondary use to steam caused by evaporation, realizes electrolyte evaporation and concentration, the recycling of the concentration process energy in electrolysis and electro-deposition, reduces energy consumption and cost in production.
Description
Technical field
The present invention relates to electrodeposition, electrolyte purification technology field, more particularly to a kind of Cu, Ni and Co electrodeposition, electrolyte
Evaporation concentration device, the evaporation and concentration available for electrolyte in the technique of the metals such as copper, zinc, nickel.
Background technology
Current domestic nonferrous smelting industry, it is that copper sulphate, nickel sulfate, cobaltous sulfate are entered using single-action or multiple-effect technique to have it
Row is, it is necessary to consume steam to maintain the temperature of evaporation, while also need auxiliary construction circulating cooling system, by the heat shifting of system
Go out, to maintain the normal operation of system.At present in copper electrodeposition, electrolysis industry electrolyte (copper sulphate) solution evaporating and concentrating process,
Evaporation technology is vacuumized using water stream injection pump, steam caused by electrolyte concentration and evaporation is directly transferred to system by vavuum pump
In outer cooling water, cooling water is constantly heated by steam, to maintain the temperature of cooling water typically to also need to build a set of circulation in addition
Cooling system.Steam is not utilized not only caused by double evaporation-cooling in this technique, while also additionally to build cooling system
System is to maintain system temperature, and also additional power consumption, has the shortcomings that high energy consumption and high cost.
The content of the invention
It is an object of the present invention to provide a kind of Cu, Ni and Co electrodeposition, electrolyte evaporation concentration device, available for comprehensive reutilization
Electrolyte evaporation and concentration, the concentration process energy in the electrolysis and electro-deposition of the metals such as copper, zinc, nickel, can reach reduces copper sulphate, sulphur
The purpose of energy consumption and cost in sour nickel, cobaltous sulfate production.
The technical solution adopted for the present invention to solve the technical problems：
The present invention includes vapour-recovery unit, evaporating kettle, medium input vapor heat exchanger, vavuum pump, condensation water collection dress
Put, condensing crystallizing groove, medium pre-add heat exchanger, condensate pump, medium export vapor heat exchanger, circulating pump, slurries pump, first
Motor-driven valve, detection means, the second motor-driven valve, the 3rd motor-driven valve, the 4th motor-driven valve and liquid level gauge；The water vapour on evaporating kettle top goes out
Mouth is connected to vapour-recovery unit entrance, and vapour-recovery unit outlet inputs vapor heat exchanger through medium respectively and medium output is steamed
Vapour heat exchanger is wherein connected to condensed water collecting device after pipeline all the way and carries out condensation collection；The medium feed liquid of evaporating kettle bottom
Outlet exports vapor heat exchanger another way pipeline, circulating pump, medium through medium successively and inputs vapor heat exchanger another way pipeline company
The medium feed liquid port of evaporating kettle is connected to, the outlet of medium output vapor heat exchanger another way pipeline is connected to concentration through slurries pump
Crystallization tank；Evaporating kettle is provided with the detection means for being used for detecting interior media concentration, the condensed water pump connection of condensed water collecting device
Condensed water, the input of medium pre-add heat exchanger another way line entry are wherein discharged in pipeline all the way to medium pre-add heat exchanger
Medium feed liquid, it exports the entrance for being connected respectively to evaporating kettle and circulating pump, medium pre-add heat exchanger another way tube outlet
Pipeline between evaporating kettle is provided with the 4th motor-driven valve.
Pipeline between described medium pre-add heat exchanger another way tube outlet and the entrance of circulating pump is provided with the
Two motor-driven valves, the second motor-driven valve electrically connect with the liquid level gauge installed on evaporating kettle.
Formed and followed between described circulating pump, evaporating kettle, medium input vapor heat exchanger and medium output vapor heat exchanger
Endless tube road, circulating pump is constantly pressurizeed to the medium feed liquid in evaporating kettle to be exchanged heat with keep medium feed liquid in evaporating kettle and two
Forced flow between device, realize the circular flow of evaporation and concentration.
Pipeline between described slurries pump and condensing crystallizing groove is provided with the first motor-driven valve, detection means electrical connection first
Motor-driven valve control opens and closes；When detecting that the arrival of medium feed concentration requires by detection means, the first motor-driven valve is opened will evaporation
Part has concentrated medium feed liquid and has been output to the crystallization of condensing crystallizing groove in kettle, at the same the second motor-driven valve open input it is new do not concentrate Jie
Material liquid, to maintain system balancing.
Pipeline and the second motor-driven valve are provided between described medium pre-add heat exchanger and evaporating kettle, when liquid level gauge detects
When being less than normal level to liquid level, motor-driven valve opens the new medium feed liquid that do not concentrate of supplement and enters evaporating kettle, to maintain system to put down
Weighing apparatus.
Described condensed water collecting device connection vavuum pump, is discharged incoagulable gas by vavuum pump.
Described vapour-recovery unit extracts steam caused by evaporating kettle out, and certain negative pressure is formed in evaporating kettle,
The 3rd motor-driven valve is connected to supplement input water vapour.
Described medium inputs vapor heat exchanger, medium output vapor heat exchanger, medium pre-add heat exchanger using board-like
Heat exchanger, tubular heat exchanger or coil exchanger, are used using separate unit or more connection in series-parallel use.
In the present invention, enter evaporating kettle after the condensed water afterheat heat exchanger preheating of medium of concentration to be evaporated, evaporate output
Steam send heat exchanger through vapour-recovery unit recovery, make to produce one in evaporating kettle while vapour-recovery unit recovered steam
Fixed negative pressure, to reduce the boiling point for the medium for needing to be concentrated by evaporation.
The outlet at bottom of evaporating kettle sets evaporation terminal to set densimeter (densitometer), and the medium that needs are concentrated by evaporation is carried out
Detection, electrically operated valve is controlled to carry out the medium for discharging evaporating kettle with the detection signal of mass flowmenter or densimeter (densitometer)
Flow controls.Liquid level gauge is set in evaporating kettle, and Jie of the electrically operated valve hence into evaporating kettle is controlled with the signal of liquid level gauge
The flow of matter.
Apparatus of the present invention further can be set single board computer, programmable controller (PLC) or DCS and carry out process progress to system
Automated condtrol.
Beneficial effects of the present invention：
Due to the present invention by the steam for evaporating output directly recovery to heat the medium for needing to be concentrated by evaporation, heat obtains
Recycle, vapour-recovery unit forms certain negative pressure in evaporating kettle while recovered steam, reduces the boiling of medium
Point, improves evaporation efficiency.Due to having used vapour-recovery unit, eliminate in traditional concentration and evaporation and steamed with water stream injection pump vacuum
Hair, single-action, multiple-effect evaporation need with water or set circulating cooling system to evaporate the problem of generation steam cools down to medium.Subtract
Small power consumption liquid reduces the cost of complete equipment.
Brief description of the drawings
Accompanying drawing 1 is the structure principle chart of apparatus of the present invention.
In figure：Vapour-recovery unit 1, evaporating kettle 2, medium input vapor heat exchanger 3, vavuum pump 4, condensed water collecting device
5th, condensing crystallizing groove 6, medium pre-add heat exchanger 7, condensate pump 8, medium output vapor heat exchanger 9, circulating pump 10, slurries pump
11st, the first motor-driven valve 12, detection means 13, the second motor-driven valve 14, the 3rd motor-driven valve 15, the 4th motor-driven valve 16, liquid level gauge 17.
Embodiment
The invention will be further described with reference to the accompanying drawings and examples.
As shown in figure 1, the present invention includes vapour-recovery unit 1, evaporating kettle 2, medium input vapor heat exchanger 3, vavuum pump
4th, condensed water collecting device 5, condensing crystallizing groove 6, medium pre-add heat exchanger 7, condensate pump 8, medium output vapor heat exchanger
9th, circulating pump 10, slurries pump 11, the first motor-driven valve 12, detection means 13, the second motor-driven valve 14, the electricity of the 3rd motor-driven valve the 15, the 4th
Dynamic valve 16 and liquid level gauge 17.
The core that the present invention is implemented is evaporating kettle 2, matter input vapor heat exchanger 3, medium output vapor heat exchanger 9 and followed
The evaporation and concentration energy circulation loop that ring pump 10 is formed.Equipment itself will be concentrated by evaporation caused by steam to itself medium carry out
Reheat.Realize recycling for the heat of vapo(u)rization system.
The steam outlet on the top of evaporating kettle 2 is connected to the entrance of vapour-recovery unit 1, the outlet of vapour-recovery unit 1 difference
Condensation water collection dress is wherein connected to after pipeline all the way through what medium inputted vapor heat exchanger 3 and medium output vapor heat exchanger 9
Put 5 and carry out condensation collection；The medium material liquid outlet of the bottom of evaporating kettle 2 successively through medium export vapor heat exchanger 9 another way pipeline,
Circulating pump 10, the medium input another way pipeline of vapor heat exchanger 3 are connected to the medium feed liquid port of evaporating kettle 2, and medium output is steamed
The outlet of the another way pipeline of vapour heat exchanger 9 is connected to condensing crystallizing groove 6 through slurries pump 11；Evaporating kettle 2, which is provided with, to be used to detect inside
The detection means 13 of concentration of medium, the condensed water pump 8 of condensed water collecting device 5 are connected to medium pre-add heat exchanger 7 wherein one
Condensed water is discharged in the pipeline of road, the another way line entry input medium feed liquid of medium pre-add heat exchanger 7, its outlet connects respectively
To evaporating kettle 2 and the entrance of circulating pump 10, the pipeline between the another way tube outlet of medium pre-add heat exchanger 7 and evaporating kettle 2
It is provided with the 4th motor-driven valve 16.
Pipeline between the another way tube outlet of medium pre-add heat exchanger 7 and the entrance of circulating pump 10 is provided with the second electricity
Dynamic valve 14, the second motor-driven valve 14 electrically connect with the liquid level gauge 17 installed on evaporating kettle 2.
Circulation is formed between circulating pump 10, evaporating kettle 2, medium input vapor heat exchanger 3 and medium output vapor heat exchanger 9
Pipeline, circulating pump 10 are constantly pressurizeed to the medium feed liquid in evaporating kettle 2 and changed with keep medium feed liquid in evaporating kettle 2 and two
Forced flow between hot device, realize the circular flow of evaporation and concentration.
Pipeline between slurries pump 11 and condensing crystallizing groove 6 is provided with the first motor-driven valve 12, the electrical connection of detection means 13 the
The control of one motor-driven valve 12 opens and closes；The outlet of medium output vapor heat exchanger 9 is used as evaporating kettle concentrate delivery outlet, medium output steam
Heat exchanger 9, which exports, to be connected a branch pipe between the entrance of circulating pump 10 and leads to slurries pump 11, and slurries pump 11 connects condensing crystallizing groove 6,
When detecting that the arrival of medium feed concentration requires by detection means 13, the first motor-driven valve 12 is opened part in evaporating kettle 2
Concentration medium feed liquid is output to condensing crystallizing groove 6 and crystallized, and the slurries after evaporating kettle is concentrated by evaporation by slurries pump 11 are delivered to concentration
Groove 6 carries out crystallization concentration, at the same the second motor-driven valve 14 open input it is new do not concentrate medium feed liquid, to maintain system circulation to put down
Weighing apparatus.
Pipeline and the second motor-driven valve 14 are provided between medium pre-add heat exchanger 7 and evaporating kettle 2, when liquid level gauge 17 detects
When being less than normal level to liquid level, motor-driven valve 14 opens the new medium feed liquid that do not concentrate of supplement and enters evaporating kettle, to maintain system
Balance.
Condensed water collecting device 5 connects vavuum pump 4, is discharged incoagulable gas by vavuum pump 4.
Vapour-recovery unit 1 extracts steam caused by evaporating kettle 2 out, and certain negative pressure is formed in evaporating kettle 2, connection
3rd motor-driven valve 15 is supplementing input water vapour.
Medium input vapor heat exchanger 3, condensed water collecting device 5, medium pre-add heat exchanger 7 using plate type heat exchanger,
Tubular heat exchanger or coil exchanger, are used using separate unit or more connection in series-parallel use.
In specific implementation, detection means 13 can use densimeter, but not limited to this.
Apparatus of the present invention can be manual, may also set up programmable controller (PLC) or DCS is automatically controlled.Need steaming
The evaporation terminal (slurries pump delivery outlet) for sending out the medium of concentration sets detection means 13, and detection means is mass flowmenter and proportion
Count (densitometer), according to flowmeter and the Numerical Control slurries pump of densitometer and being turned on and off for output valve.Also may be used simultaneously
By circulating pump current value as terminal judgment basis (density for determining slurries in the circulatory system), it is determined that be concentrated by evaporation whether
Reach requirement.
As shown in figure 1, the specific implementation course of work of the present invention is as follows：
The medium of concentration to be evaporated enters circulating pump 10 after being preheated by pre-add heat exchanger 7, and is transported to medium
Heated in input vapor heat exchanger 3, concentration is evaporated into evaporating kettle after heating.Vapour-recovery unit 1 is by evaporating kettle 2
Caused steam is extracted out, and certain negative pressure is formed in evaporating kettle 2.The steam of extraction send medium to input the He of vapor heat exchanger 3
The medium output recovery of vapor heat exchanger 9 uses.
The medium feed liquid that medium input vapor heat exchanger 3 exports to evaporating kettle heats, and to the water of evaporating kettle output
Steam is cooled down, and its caused condensed water and Low Temperature Steam are transported to condensed water collecting device 5 and be collected.Medium inputs
Vapor heat exchanger 3 can use plate type heat exchanger, and more connection in series-parallel use.
The medium feed liquid that medium output vapor heat exchanger 9 exports to evaporating kettle heats, and to the water of evaporating kettle output
Steam is cooled down, and its caused condensed water and Low Temperature Steam are transported to condensed water collecting device 5 and be collected.Medium exports
Vapor heat exchanger 9 can use tubular heat exchanger, and separate unit uses.
The trapping medium of the condensed water collecting device 5 input vapor heat exchanger 3 and medium output vapor heat exchanger 9 of the present invention produces
Raw condensed water, because condensed water has certain temperature, the condensed water in Condensed water collection device 5 is conveyed by condensate pump 8
Temperature exchange is carried out into medium pre-add heat exchanger 7, to be preheated to medium.Meanwhile in condensed water collecting device 5
On-condensible gas by the discharge system of vavuum pump 4 outside.
Concentrate after evaporating kettle 2 evaporates is output in circulating pump 10, repeats said process, circulating pump and evaporating kettle,
It is circulation line between heat exchanger, circulating pump is constantly pressurizeed with keep medium to medium between evaporating kettle and heat exchanger
Forced flow, realize the circular flow of evaporation and concentration.Detection means (densitometer or flow mass meter) is to evaporation in the process
Medium in kettle is detected, circulation pump when reaching requirement such as concentration of medium, opens slurries pump 11 and motor-driven valve 12 will be full
The medium required enough is exported into condensing crystallizing groove 6.
Because medium is continually entered in evaporating kettle 2 when liquid level gauge 17 detects that the liquid level of evaporating kettle will when reaching limit value
Close the input that motor-driven valve 14 stops new medium feed liquid.
Vapour-recovery unit 1 is in startup stage and needs the progress high intensity production phase to open motor-driven valve 15 from outside benefit
Steam is filled to meet production requirement.When needing to start production, motor-driven valve 16 will be opened to have the function that quickly to supplement medium.
As can be seen here, the present invention reaches comprehensive reutilization electrolysis by carrying out secondary use to steam caused by evaporation
Be concentrated by evaporation with electrolyte in electro-deposition, the notable technique effect of the concentration process energy, realize reduce copper sulphate, nickel sulfate,
The purpose of energy consumption and cost in cobaltous sulfate production.
Claims (7)
1. a kind of Cu, Ni and Co electrodeposition, electrolyte evaporation concentration device, it is characterised in that：Including vapour-recovery unit (1), evaporating kettle
(2), medium input vapor heat exchanger (3), condensed water collecting device (5), condensing crystallizing groove (6), medium pre-add heat exchanger
(7), condensate pump (8), medium output vapor heat exchanger (9), circulating pump (10), slurries pump (11), detection means (13) and liquid
Position meter (17)；Liquid level gauge (17) is arranged on evaporating kettle (2)；The steam outlet on evaporating kettle (2) top is connected to Steam Recovery
Device (1) entrance, vapour-recovery unit (1) outlet inputs vapor heat exchanger (3) through medium respectively and medium exports steam heat-exchanging
Device (9) is wherein connected to condensed water collecting device (5) after pipeline all the way and carries out condensation collection；
The medium material liquid outlet of evaporating kettle (2) bottom exports vapor heat exchanger (9) another way pipeline, circulating pump through medium successively
(10), medium input vapor heat exchanger (3) another way pipeline is connected to the medium feed liquid port of evaporating kettle (2), and medium output is steamed
The outlet of vapour heat exchanger (9) another way pipeline is connected to condensing crystallizing groove (6) through slurries pump (11)；Evaporating kettle (2), which is provided with, to be used for
The detection means (13) of interior media concentration is detected, condensed water collecting device (5) condensed water pump (8) is connected to medium preheating
Heat exchanger (7) wherein discharges condensed water, medium pre-add heat exchanger (7) another way line entry input medium material in pipeline all the way
Liquid, it exports the entrance for being connected respectively to evaporating kettle (2) and circulating pump (10), medium pre-add heat exchanger (7) another way pipeline
Pipeline between outlet and evaporating kettle (2) is provided with the 4th motor-driven valve (16)；
Described vapour-recovery unit (1) extracts steam caused by evaporating kettle (2) out, and is formed necessarily in evaporating kettle (2)
Negative pressure, vapour-recovery unit (1) connect the 3rd motor-driven valve (15), connect the 3rd motor-driven valve (15) to supplement input water vapour.
2. a kind of Cu, Ni and Co electrodeposition according to claim 1, electrolyte evaporation concentration device, it is characterised in that：Described
Pipeline between the entrance of medium pre-add heat exchanger (7) another way tube outlet and circulating pump (10) is provided with the second motor-driven valve
(14), the second motor-driven valve (14) electrically connects with the liquid level gauge (17) installed on evaporating kettle (2).
3. a kind of Cu, Ni and Co electrodeposition according to claim 1, electrolyte evaporation concentration device, it is characterised in that：Described
Circulation is formed between circulating pump (10), evaporating kettle (2), medium input vapor heat exchanger (3) and medium output vapor heat exchanger (9)
Pipeline, circulating pump (10) constantly the medium feed liquid in evaporating kettle (2) is pressurizeed with keep medium feed liquid evaporating kettle (2) with
Forced flow between two heat exchangers, realizes the circular flow of evaporation and concentration.
4. a kind of Cu, Ni and Co electrodeposition according to claim 2, electrolyte evaporation concentration device, it is characterised in that：Described
Pipeline between slurries pump (11) and condensing crystallizing groove (6) is provided with the first motor-driven valve (12), detection means (13) electrical connection the
One motor-driven valve (12) control opens and closes；When detecting that the arrival of medium feed concentration requires by detection means (13), the first motor-driven valve
(12) medium feed liquid will partly have been concentrated by opening in evaporating kettle (2) is output to condensing crystallizing groove (6) crystallization, while the second motor-driven valve
(14) what unlatching input was new does not concentrate medium feed liquid.
5. a kind of Cu, Ni and Co electrodeposition according to claim 2, electrolyte evaporation concentration device, it is characterised in that：Described
Pipeline and the second motor-driven valve (14) are provided between medium pre-add heat exchanger (7) and evaporating kettle (2), when liquid level gauge (17) detects
When being less than normal level to liquid level, the second motor-driven valve (14) opens the new medium feed liquid that do not concentrate of supplement and enters evaporating kettle.
6. a kind of Cu, Ni and Co electrodeposition according to claim 1, electrolyte evaporation concentration device, it is characterised in that：Described
Condensed water collecting device (5) connection vavuum pump (4), is discharged incoagulable gas by vavuum pump (4).
7. a kind of Cu, Ni and Co electrodeposition according to claim 1, electrolyte evaporation concentration device, it is characterised in that：Described
Medium input vapor heat exchanger (3), medium output vapor heat exchanger (9), medium pre-add heat exchanger (7) use plate-type heat-exchange
Device, tubular heat exchanger or coil exchanger, are used using separate unit or more connection in series-parallel use.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610044588.XA CN105477894B (en) | 2016-01-22 | 2016-01-22 | Cu, Ni and Co electrodeposition, electrolyte evaporation concentration device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610044588.XA CN105477894B (en) | 2016-01-22 | 2016-01-22 | Cu, Ni and Co electrodeposition, electrolyte evaporation concentration device |
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| Publication Number | Publication Date |
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| CN105477894A CN105477894A (en) | 2016-04-13 |
| CN105477894B true CN105477894B (en) | 2017-12-15 |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN107473300A (en) * | 2017-10-10 | 2017-12-15 | 昆山明宽环保节能科技有限公司 | A kind of high concentration original cutting fluid evaporation concentration equipment and its method for concentration |
| CN116002793A (en) * | 2023-01-04 | 2023-04-25 | 上海第二工业大学 | Vacuum evaporation crystallization system |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0857202A (en) * | 1994-08-25 | 1996-03-05 | Konica Corp | Heat pump type evaporation-concentration apparatus and treatment method using the apparatus |
| CN102728082B (en) * | 2012-07-04 | 2014-06-25 | 朱大春 | Steam evaporating, concentrating and crystallizing system without live steam |
| CN104771916A (en) * | 2014-01-15 | 2015-07-15 | 天津市武清区福林化工工贸有限公司 | Evaporation concentrator |
| CN104922974B (en) * | 2015-06-25 | 2016-12-07 | 江西中医药大学 | A kind of concentration device for material liquid |
| CN205307835U (en) * | 2016-01-22 | 2016-06-15 | 江西天鑫冶金装备技术有限公司 | Novel copper nickel cobalt electrodeposition, electrolyte evaporative concentration device |
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- 2016-01-22 CN CN201610044588.XA patent/CN105477894B/en active Active
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