CN207445617U - MVR evaporators - Google Patents
MVR evaporators Download PDFInfo
- Publication number
- CN207445617U CN207445617U CN201721535751.9U CN201721535751U CN207445617U CN 207445617 U CN207445617 U CN 207445617U CN 201721535751 U CN201721535751 U CN 201721535751U CN 207445617 U CN207445617 U CN 207445617U
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- China
- Prior art keywords
- heat exchanger
- evaporator
- separator
- mvr evaporators
- liquid
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- 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
- Y02P20/00—Technologies relating to chemical industry
- Y02P20/10—Process efficiency
Abstract
The utility model is related to a kind of MVR evaporators, belong to lithium sulfate concentration technique field.The utility model has redesigned the structure of MVR evaporators, and the indirect steam come out from vaporization chamber is compressed through compressor, pressure and temp rise, heat content increases, heating chamber is then delivered to when heating steam use, liquid material is made to maintain fluidized state, and heats steam and is condensed into water in itself.The utility model can make full use of indirect steam latent heat, and realization is fully energy saving, and technological operation is simple, while three wastes generate, environmentally friendly.
Description
Technical field
The utility model is related to a kind of MVR evaporators, belong to lithium sulfate concentration technique field.
Background technology
Lithium sulfate is the important source material of industrial production lithium carbonate, and it is to carry that sulfuric acid process, which is produced in lithium carbonate production process,
High carbon acid lithium yield, intermediate raw material lithium sulfate solution need to purify concentration, and the conventional lithium sulfate concentrate that produces uses multiple-effect evaporation more,
The process has the shortcomings that technological process is long, complicated for operation, cost of investment is high, and energy consumption is higher, and the production cost of product is high.
Utility model content
In view of the foregoing defects the prior art has, the utility model proposes a kind of new MVR evaporators.
The utility model is realized using following technical solution：
A kind of MVR evaporators, it is described including separator, compressor, evaporator, power-equipment, heat exchanger and extraction equipment
Evaporator and heat exchanger are internally provided with heat exchanger tube and steam passage, and the heat exchanger tube is connected with raw material inlet pipe, heat exchange pipe of evaporator
Gaseous phase outlet connection separator, the gas phase pipeline being connected with separator gaseous phase outlet be equipped with compressor and give birth to steam inlet, gas
Phase pipeline is divided into two, and the steam passage with evaporator and heat exchanger is connected respectively, the steam passage of evaporator and heat exchanger with
Condensed water discharge pipe is connected, and separator liquid-phase outlet is connected with heat exchanger heat-exchanging tube, and the heat exchanger tube of heat exchanger and evaporator passes through
Liquid phase pipeline is connected, and liquid phase pipeline is equipped with to return the feedstock transportation in heat exchanger into the power-equipment of evaporator, the liquid
The extraction equipment for extracting raw material out is additionally provided on phase pipeline.
The evaporator is film-rising evaporator.
The separator is silk screen gas-liquid separator.
The volume of the evaporator is more than the volume of the heat exchanger.
The power-equipment is circulating pump.
The extraction equipment is liquid pump.
The beneficial effects of the utility model are：
(1) thermal efficiency is high, saves the energy.Than multiple-effect evaporation saving mark coal 65%-80%.
(2) evaporated using MBR, evaporating temperature can be arbitrarily set in the range of 30 DEG C -100 DEG C, especially suitable for thermal sensitivity
Stronger material is not easy to be denatured material, without freezing cooling water under low-temperature condition, reduces investment outlay.
(3) high degree of automation, occupation area of equipment is small, and operating personnel are few.
(4) it is environmentally safe without exhaust gas, waste water, waste sludge discharge.
Description of the drawings
Fig. 1 is the structure diagram of the utility model.
In figure：1st, separator；2nd, compressor；3rd, evaporator；4th, circulating pump；5th, heat exchanger；6th, liquid pump；7th, raw steam into
Pipe；8th, condensate liquid comb；9th, raw material inlet pipe.
Specific embodiment
In order to which the utility model aim, technical solution is more clearly understood, below in conjunction with the accompanying drawings, the utility model is made
It is further described.
Embodiment：
A kind of MVR evaporators, it is described including separator 1, compressor 2, evaporator 3, circulating pump 4, heat exchanger 5 and liquid pump 6
Evaporator 3 and heat exchanger 5 are internally provided with heat exchanger tube and steam passage, and the heat exchanger tube is connected with raw material inlet pipe 9, and evaporator 3 changes
The gaseous phase outlet connection separator 1 of heat pipe, the gas phase pipeline being connected with 1 gaseous phase outlet of separator are equipped with compressor 2 and raw steam
Entrance, gas phase pipeline are divided into two, and the steam passage with evaporator 3 and heat exchanger 5 is connected respectively, evaporator 3 and heat exchanger 5
Steam passage is connected with condensed water discharge pipe, and 1 liquid-phase outlet of separator is connected with 5 heat exchanger tube of heat exchanger, heat exchanger 5 and evaporator
3 heat exchanger tube is connected by liquid phase pipeline, and liquid phase pipeline is equipped with the feedstock transportation in heat exchanger 5 returning evaporator 3
Circulating pump 4 is additionally provided with the liquid pump 6 for extracting raw material out on the liquid phase pipeline.The volume of the evaporator 3 is more than described change
The volume of hot device 5.The evaporator 3 is film-rising evaporator, and the separator 1 is silk screen gas-liquid separator.
During operation：
The mass percent that upstream process is produced is that the lithium sulfate solution of 2%-6% is heated to 80-100 DEG C, warp
Evaporator 3 is pumped by raw material inlet pipe 9, into heat exchanger tube；Raw steam is disposably passed into evaporation via raw steam inlet tube 7
In 3 heating chamber of device, start compressor 2, be evaporated.
Steam flows in evaporator 3, and gradually cools down and form condensate liquid, and the raw material in heat exchanger tube is absorbed in steam
Heat and seethe with excitement, the indirect steam evaporated, which enters in separator 1, to cool down, and separator 1 is by the lithium sulfate drop in indirect steam
It separates, the lithium sulfate drop separated collects, from the heat exchanger tube of the liquid-phase outlet inflow heat exchanger 5 of separator 1
In, lithium sulfate solution absorbs the heat in steam in the heat exchanger tube of heat exchanger 5 and heats up, and circulating pump 4 is normally opened, by heat exchanger 5
In lithium sulfate liquid be sent in evaporator 3, so move in circles.
At the same time, the water vapour after removal lithium sulfate drop is compressed through compressor 2, and pressure rise, temperature is increased to
100-115 DEG C, steam enthalpy increases, and is then delivered to 3 heating chamber of evaporator and is used as heating steam, liquid material is made to maintain boiling-like
State is further concentrated, and water vapour is condensed into water in itself.Indirect steam is fully used, and has recycled latent heat, improves heat
Efficiency.
When condensate liquid is enough, the valve being arranged on condensate liquid comb 8 is opened, condensate liquid is discharged.When in evaporator 3
Lithium sulfate solution concentration when reaching 5%-10%, close circulating pump 4 and compressor 2, open liquid pump 6, start to discharge, after
Continuous lithium carbonate production process.
The utility model can be widely used in lithium sulfate concentration occasion.
Claims (6)
1. a kind of MVR evaporators, which is characterized in that including separator (1), compressor (2), evaporator (3), power-equipment, change
Hot device (5) and extraction equipment, the evaporator (3) and heat exchanger (5) are internally provided with heat exchanger tube and steam passage, the heat exchanger tube
It is connected with raw material inlet pipe (9), the gaseous phase outlet connection separator (1) of evaporator (3) heat exchanger tube, with separator (1) gaseous phase outlet
Connected gas phase pipeline is equipped with compressor (2) and gives birth to steam inlet, and gas phase pipeline is divided into two, respectively with evaporator (3) and changing
The steam passage of hot device (5) is connected, and the steam passage of evaporator (3) and heat exchanger (5) is connected with condensed water discharge pipe, separator
(1) liquid-phase outlet is connected with heat exchanger (5) heat exchanger tube, and the heat exchanger tube of heat exchanger (5) passes through liquid phase with the heat exchanger tube of evaporator (3)
Pipeline is connected, and liquid phase pipeline is equipped with to return the feedstock transportation in heat exchanger (5) into the power-equipment of evaporator (3), described
The extraction equipment for extracting raw material out is additionally provided on liquid phase pipeline.
2. MVR evaporators according to claim 1, which is characterized in that the evaporator (3) is film-rising evaporator.
3. MVR evaporators according to claim 1, which is characterized in that the separator (1) is silk screen gas-liquid separator.
4. MVR evaporators according to claim 1, which is characterized in that the volume of the evaporator (3) is more than the heat exchange
The volume of device (5).
5. MVR evaporators according to claim 1, which is characterized in that the power-equipment is circulating pump (4).
6. MVR evaporators according to claim 1, which is characterized in that the extraction equipment is liquid pump (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721535751.9U CN207445617U (en) | 2017-11-14 | 2017-11-14 | MVR evaporators |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721535751.9U CN207445617U (en) | 2017-11-14 | 2017-11-14 | MVR evaporators |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207445617U true CN207445617U (en) | 2018-06-05 |
Family
ID=62279979
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721535751.9U Active CN207445617U (en) | 2017-11-14 | 2017-11-14 | MVR evaporators |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207445617U (en) |
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2017
- 2017-11-14 CN CN201721535751.9U patent/CN207445617U/en active Active
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