CN106730942A - A kind of salt organic waste water low-temperature evaporation crystallization apparatus high - Google Patents
A kind of salt organic waste water low-temperature evaporation crystallization apparatus high Download PDFInfo
- Publication number
- CN106730942A CN106730942A CN201611259100.1A CN201611259100A CN106730942A CN 106730942 A CN106730942 A CN 106730942A CN 201611259100 A CN201611259100 A CN 201611259100A CN 106730942 A CN106730942 A CN 106730942A
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- Prior art keywords
- evaporator
- water
- level
- recuperation
- waste water
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 64
- 238000001704 evaporation Methods 0.000 title claims abstract description 36
- 230000008020 evaporation Effects 0.000 title claims abstract description 34
- 150000003839 salts Chemical class 0.000 title claims abstract description 22
- 238000002425 crystallisation Methods 0.000 title claims abstract description 11
- 230000008025 crystallization Effects 0.000 title claims abstract description 11
- 239000010815 organic waste Substances 0.000 title claims abstract description 8
- 239000002351 wastewater Substances 0.000 claims abstract description 31
- 239000000498 cooling water Substances 0.000 claims abstract description 15
- 238000000926 separation method Methods 0.000 claims abstract description 13
- 238000009833 condensation Methods 0.000 claims abstract description 12
- 230000005494 condensation Effects 0.000 claims abstract description 12
- 239000007788 liquid Substances 0.000 claims description 9
- 239000012141 concentrate Substances 0.000 claims description 6
- 238000010025 steaming Methods 0.000 claims description 3
- 229910000838 Al alloy Inorganic materials 0.000 claims description 2
- 229910000975 Carbon steel Inorganic materials 0.000 claims description 2
- 239000010962 carbon steel Substances 0.000 claims description 2
- 239000010935 stainless steel Substances 0.000 claims description 2
- 229910001220 stainless steel Inorganic materials 0.000 claims description 2
- VEXZGXHMUGYJMC-UHFFFAOYSA-M Chloride anion Chemical compound [Cl-] VEXZGXHMUGYJMC-UHFFFAOYSA-M 0.000 abstract description 5
- 238000005260 corrosion Methods 0.000 abstract description 5
- 230000007797 corrosion Effects 0.000 abstract description 5
- 238000005265 energy consumption Methods 0.000 abstract description 5
- 239000005416 organic matter Substances 0.000 abstract description 5
- 239000003245 coal Substances 0.000 abstract description 4
- 230000000694 effects Effects 0.000 abstract description 4
- 239000010865 sewage Substances 0.000 abstract description 4
- 239000000126 substance Substances 0.000 abstract description 4
- 230000007613 environmental effect Effects 0.000 abstract description 3
- 230000010354 integration Effects 0.000 abstract description 3
- 238000004064 recycling Methods 0.000 abstract description 3
- 238000004065 wastewater treatment Methods 0.000 abstract description 2
- 238000010586 diagram Methods 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 229910001069 Ti alloy Inorganic materials 0.000 description 2
- 239000000956 alloy Substances 0.000 description 2
- 230000001174 ascending effect Effects 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 2
- 238000009835 boiling Methods 0.000 description 2
- 230000006835 compression Effects 0.000 description 2
- 238000007906 compression Methods 0.000 description 2
- 238000007599 discharging Methods 0.000 description 2
- 238000005485 electric heating Methods 0.000 description 2
- 238000000703 high-speed centrifugation Methods 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- 238000012546 transfer Methods 0.000 description 2
- 239000013078 crystal Substances 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000005530 etching Methods 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 239000012528 membrane Substances 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 238000005086 pumping Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 238000002207 thermal evaporation Methods 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D1/00—Evaporating
- B01D1/0011—Heating features
- B01D1/0017—Use of electrical or wave energy
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D1/00—Evaporating
- B01D1/26—Multiple-effect evaporating
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D9/00—Crystallisation
- B01D9/0018—Evaporation of components of the mixture to be separated
- B01D9/0031—Evaporation of components of the mixture to be separated by heating
-
- 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
Abstract
The invention belongs to field of waste water treatment, more particularly to a kind of salt organic waste water low-temperature evaporation crystallization apparatus high, it is sequentially connected including entering water preheater, vapor can, 1~N grade evaporator, steam-water separation tank, air-introduced machine, chimney, connected by axial-flow pump respectively between the evaporator, the N grades of base of evaporator is connected with the magma container, the bottom of described 1~(N 1) level evaporator is connected with condensation water tank, and the delivery port of described 1~(N 1) level evaporator and cooling water tank, water inlet are connected.During device treatment Coal Chemical Industry high salt organic wastewater disclosed in this invention, it is unrestricted to entering organic matter of water, chloride concentration, evaporation condensed water is not only reclaimed, also achieve Waste water concentrating and reclaim mixed salt, reduce the infringement and corrosion to sewage treatment equipment, the recycling and wastewater zero discharge of high salt organic wastewater high are realized, device integration is high, high treating effect, safeguard that operation is convenient, energy consumption is low, environmental protection.
Description
Technical field
The invention belongs to field of waste water treatment, more particularly to a kind of salt organic waste water low-temperature evaporation crystallization apparatus high.
Background technology
Coal Chemical Industry high-salt wastewater is totally presented the features such as discharge capacity is larger, chloride ion content is high, salt content is big, its composition master
Will be based on organic matter and inorganic salts.At present both at home and abroad for Coal Chemical Industry haline water treatment, generally using membrane separation technique,
The group technology that thermal evaporation techniques and two kinds of technologies are formed.Conventional film concentration+evaporative crystallization group technology long flow path, energy consumption
High with processing cost, effect is unstable, and the waste water evaporation concentration equipment after film concentration mainly uses titanium alloy material heat exchanger, divides
From device and single-stage high-speed centrifugation vapour compression machine, heat exchange area is small, and compressor rises gentle high energy consumption, and investment and operating cost are high
It is high；Crystallizer is mainly using titanium alloy material heat exchanger, crystallizer and single-stage high-speed centrifugation vapour compression machine, cost and energy consumption
Height, causes the high cost of enterprise's longtime running, burden weight, it is impossible to ensure the operation steady in a long-term of high salt water zero discharge, influence enterprise
The sustainable development of industry.
In existing evaporative crystallization technique or equipment, the scale problems of heat transmission equipment are very important, whether electrical heating
Or steam is heated, high-concentration waste water by heat exchanger to lift temperature, and must usually contain a large amount of K in sewage+、Na+、Ca2+、
Mg2+And Cl-、CO3 2-、SO4 2-、NO3 -Plasma, the easily fouling on heat exchanger inwall, causes the corrosion of equipment.Even if using
Corrosion resistant equipment, also needs frequent heat exchanging device to carry out scale removal to improve heat exchange efficiency, and extension device is with using the life-span.To being at present
Only, this problem is not solved also well.
The content of the invention
The present invention is directed to problem above, there is provided a kind of low temperature, without boiling heat transfer face, make full use of system heat energy, it is and right
The unconfined low-temperature evaporation crystallization apparatus of entering organic matter of water, chloride concentration, effectively solve existing haline water evaporation and crystal process
The fouling of middle heat transmission equipment and etching problem.
To solve above-mentioned purpose, the technical scheme is that：
A kind of salt organic waste water low-temperature evaporation crystallization apparatus high, including enter water preheater, vapor can, 1~N grade evaporator,
Steam-water separation tank, chimney, air-introduced machine, magma container, condensation water tank and cooling water tank；It is described enter water preheater, 1~N grades steaming
Hair device, steam-water separation tank, chimney and air-introduced machine are linked in sequence successively, are connected by axial-flow pump respectively between the evaporator, institute
State 1 grade of base of evaporator to be connected with the vapor can bottom, the N grades of base of evaporator is connected with the magma container,
Described 1~(N-1) level base of evaporator is connected with the condensation water tank, described 1~(N-1) level evaporator and the cooling water tank
Delivery port, water inlet connection.
The evaporator is sequentially connected by evaporation cavity, fan component, recuperation of heat component, and be made packaged type it is square every
Thermal container, container outer layer is carbon steel or aluminium alloy, and inwall is stainless steel, and inwall is provided with the passage for sliding in and out.
1~N grades of evaporator the N be at least 4, i.e. 1~N grade evaporator at least include one-level evaporator, secondary evaporimeter,
Three-level evaporator, four evaporators of level Four evaporator.
The fan component of the evaporator is made up of 4-5 aerofoil fan.
The bottom of the evaporator recuperation of heat component and side top delivery port, water inlet respectively with the cooling water tank
Connection.
The evaporator recuperation of heat component is by shell and tube set of heat exchange tubes into cooling water is flowed into from heat exchange bottom of the tube, from heat exchange
The outflow of pipe top, finally returns into cooling water tank, forms closed circulation.
It is described enter water preheater delivery port and the one-level evaporator top water inlet be connected, the one-level evaporator top
Portion is provided with water-locator, and water inlet forms pencil shape current current and enters one-level evaporation from top to bottom by the water-locator of 1 grade of evaporator
The evaporation cavity of device, vapours enters evaporation cavity from one-level base of evaporator.
Air-flow in the one-level evaporator evaporation chamber enters recuperation of heat component, the steaming of one-level evaporator by fan component
Hair bottom of chamber portion is provided with the waste water collection tank for collecting non-evaporating waste water, will not evaporate the waste water taken away and is collected, and is back to through pumping
Enter in water preheater.
Air-flow in described 1~(N-1) level evaporator evaporation chamber enters recuperation of heat component by fan component, and thermal current exists
Recuperation of heat component is condensed, and the middle and lower part of recuperation of heat component is provided with air stream outlet, and recuperation of heat component bottom is provided with condensate liquid
Delivery port, enters in condensation water tank through pipeline.
Air-flow in the N grades of evaporator evaporation chamber enters recuperation of heat component by fan component, and air-flow is in recuperation of heat group
Part is condensed, and the middle and lower part of recuperation of heat component is provided with air stream outlet, and recuperation of heat component bottom is provided with concentrate delivery port, through pipe
Road enters in magma container.
Condensation concentrate carries out separation of solid and liquid in the magma container extraction system, reclaims mixed salt.
The exit flow of the N grades of evaporator recuperation of heat component middle and lower part carries out steam-water separation by steam-water separation tank, warp
Air-introduced machine draws row to air.
Device disclosed in this invention, be can by waste water by 65~80 DEG C of Low Temperature Thermal wet gas currents, without boiling heat transfer face with
And make full use of the multistage evaporator system of system heat energy to concentrate, waste water energy continuous circular treatment in the system and device, not only
Evaporation condensed water is reclaimed, Waste water concentrating has been also achieved and is reclaimed mixed salt, reduced infringement and corrosion to sewage treatment equipment；Simultaneously
It is unrestricted to entering organic matter of water, chloride concentration, it is adaptable to high salt organic concentration waste water evaporation process high, realize high salt
The recycling and wastewater zero discharge of organic wastewater high, device integration is high, high treating effect, maintenance operation convenience, energy
Consume low, environmental protection.
Brief description of the drawings
Fig. 1 is salt organic waste water low-temperature evaporation crystallization apparatus flow chart high of the invention, and filled arrows represent waste water or air-flow
Flow direction, hollow arrow represents flow of cooling water direction.
Fig. 2 is one-level evaporator schematic diagram.
Fig. 3 is secondary evaporimeter, three-level evaporator schematic diagram.
Fig. 4 is level Four evaporator schematic diagram.
Fig. 5 is that, into water preheater schematic diagram, left arrow represents waste water inflow direction, and right arrow represents waste water outflow side
To.
Wherein, 1 is that, into water preheater, 2 is vapor can, and 3 is one-level evaporator, and 4 is axial-flow pump, and 5 is secondary evaporimeter, 6
It is three-level evaporator, 7 is level Four evaporator, and 8 is steam-water separation tank, and 9 is air-introduced machine, and 10 is chimney, and 11 is magma container, 12
It is condensation water tank, 13 is cooling water tank, and 14 is water inlet pipe, and 15 is water-locator, and 16 is evaporation cavity, and 17 is recuperation of heat component, and 18 are
Cooling water outlet pipe, 19 is blast pipe, and 20 is axial-flow pump, and 21 is condensate line, and 22 is cooling water inlet pipe, and 23 is fan group
Part, 24 is waste water collection tank, and 25 is return of waste water pipe, and 26 is steam pipe, and 27 is gas flow tube, and 28 is concentrate discharging tube, and 29 are
Electric heating tube.
Specific embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is carried out clear, complete
Site preparation is described, it is clear that described embodiment is only a part of embodiment of the invention, rather than whole embodiments.It is based on
Embodiment in the present invention, it is every other that those of ordinary skill in the art are obtained under the premise of creative work is not made
Embodiment, belongs to the scope of protection of the invention.
A kind of salt organic waste water low-temperature evaporation crystallization apparatus high, waste water is heated in water preheater 1 is entered through electric heating tube 29
To 40-50 DEG C, the steam of the water outlet and vapor can 2 of entering water preheater 1 steams from the water inlet pipe 14 of one-level evaporator 3 and bottom respectively
Steam pipe 26 is entered into one-level evaporator, and water inlet forms pencil shape current current and enters one-level evaporator from top to bottom by water-locator 15
Evaporation cavity 16, form continuous ascending air from bottom to top into the steam in one-level evaporator, continuous ascending air with it is continuous
Line shape liquid film counter current contacting, forms mixing thermal current, is condensed into recuperation of heat component 17 by fan component 23.One-level
The evaporation cavity bottom of evaporator is provided with waste water collection tank 24, and the non-evaporating waste water that will be collected into is through the blowback of return of waste water pipe 25 to entering
In water preheater 1.The middle and lower part of recuperation of heat component 17 is provided with air stream outlet, and bottom is provided with condensate liquid delivery port, enters through pipeline
In condensation water tank 12.
Connected with axial-flow pump 4 between secondary evaporimeter 5 and one-level evaporator 3, hot gas flows through blast pipe 19 by axial-flow pump 4
It is evaporated into secondary evaporimeter evaporation cavity 16.Air-flow in evaporation cavity 16 enters evaporator heat and returns by fan component 23
Receive component 17 to be condensed, the middle and lower part of recuperation of heat component 17 is provided with air stream outlet, and bottom is provided with condensate liquid delivery port, through pipeline
Into in condensation water tank 12.
Connected with axial-flow pump 4 between three-level evaporator 6 and secondary evaporimeter 5, thermal current enters three-level and steams by axial-flow pump 4
It is evaporated in hair device evaporation cavity 16.Air-flow in evaporation cavity 16 is entered by fan component 23 into evaporator recuperation of heat component 17
Row condensation, the middle and lower part of recuperation of heat component 17 is provided with air stream outlet, and bottom is provided with condensate liquid delivery port, condensed water is entered through pipeline
In case 12.
Connected with axial-flow pump 4 between level Four evaporator 7 and three-level evaporator 6, thermal current enters level Four and steams by axial-flow pump 4
It is evaporated in hair device evaporation cavity 16.Air-flow in evaporation cavity 16 is entered by fan component 23 into evaporator recuperation of heat component 17
Row condensation.The middle and lower part of recuperation of heat component 17 is provided with air stream outlet, and bottom is provided with concentrate delivery port, concentrated liquid discharging tube 29
Into in magma container 11, by reclaiming mixed salt after separation of solid and liquid.
The exit flow of the middle and lower part of 7 recuperation of heat component of level Four evaporator 17 carries out steam-water separation by steam-water separation tank 8, warp
Air-introduced machine 9 is drawn, by the row of chimney 10 to air.
One-level evaporator 3, secondary evaporimeter 5, the recuperation of heat component of three-level evaporator 6, cooling water is from shell and tube heat exchanger tube
Bottom water inlet pipe 22 enter, flowed out from top outlet pipe 18, finally return into cooling water tank 13.
During device treatment Coal Chemical Industry high salt organic wastewater disclosed in this invention, to entering organic matter of water, chloride concentration
Unrestrictedly, evaporation condensed water has not only been reclaimed, Waste water concentrating has been also achieved and is reclaimed mixed salt, reduced the infringement to sewage treatment equipment
And corrosion, the recycling and wastewater zero discharge of high salt organic wastewater high are realized, device integration is high, treatment effect
Well, safeguard that operation is convenient, energy consumption is low, environmental protection.
The foregoing is only embodiments of the invention, be not intended to limit the invention, it is all it is of the invention spirit and
Any modification, equivalent substitution and improvements made within principle etc., should be included within the scope of the present invention.
Claims (10)
1. a kind of salt organic waste water low-temperature evaporation crystallization apparatus high, it is characterised in that including entering water preheater, vapor can, 1~N
Level evaporator, steam-water separation tank, chimney, air-introduced machine, magma container, condensation water tank and cooling water tank；It is described enter water preheater,
1~N grades of evaporator, steam-water separation tank, chimney and air-introduced machine are linked in sequence successively, pass through axial-flow pump between the evaporator respectively
Connection, 1 grade of base of evaporator is connected with the vapor can bottom, and the N grades of base of evaporator is stored with the magma
Case is connected, and described 1~(N-1) level base of evaporator is connected with the condensation water tank, described 1~(N-1) level evaporator with it is described
The delivery port of cooling water tank, water inlet connection.
2. device according to claim 1, it is characterised in that the evaporator is by evaporation cavity, fan component, recuperation of heat component
It is sequentially connected, and is made the square insulated container of packaged type, container outer layer is carbon steel or aluminium alloy, inwall is stainless
Steel, inwall is provided with the passage for sliding in and out.
3. device according to claim 1, it is characterised in that the 1~N grades of evaporator N is at least 4, i.e. 1~N grade of evaporation
Device at least includes one-level evaporator, secondary evaporimeter, three-level evaporator, four evaporators of level Four evaporator.
4. device according to claim 2, it is characterised in that the fan component is made up of 4-5 aerofoil fan.
5. device according to claim 2, it is characterised in that the bottom of the recuperation of heat component and side top respectively with institute
State delivery port, the water inlet connection of cooling water tank.
6. device according to claim 5, it is characterised in that the recuperation of heat component by shell and tube set of heat exchange tubes into.
7. device according to claim 1, it is characterised in that the one-level evaporator evaporation bottom of chamber portion is provided with collection and does not evaporate
The waste water collection tank of waste water.
8. device according to claim 1, it is characterised in that it is described enter water preheater delivery port and the one-level evaporator
Top water inlet is connected, and the one-level evaporator top is provided with the water-locator that can form pencil shape current current.
9. device according to claim 1, it is characterised in that the middle and lower part of described 1~(N-1) level evaporator recuperation of heat component
Air stream outlet is provided with, recuperation of heat component bottom is provided with the delivery port of condensate liquid.
10. according to claim 1-9 any one described devices, it is characterised in that the N grades of evaporator steaming is reclaimed in component
Bottom is provided with air stream outlet, and recuperation of heat component bottom is provided with concentrate delivery port.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611259100.1A CN106730942A (en) | 2016-12-30 | 2016-12-30 | A kind of salt organic waste water low-temperature evaporation crystallization apparatus high |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611259100.1A CN106730942A (en) | 2016-12-30 | 2016-12-30 | A kind of salt organic waste water low-temperature evaporation crystallization apparatus high |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106730942A true CN106730942A (en) | 2017-05-31 |
Family
ID=58954648
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611259100.1A Pending CN106730942A (en) | 2016-12-30 | 2016-12-30 | A kind of salt organic waste water low-temperature evaporation crystallization apparatus high |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107899266A (en) * | 2017-11-03 | 2018-04-13 | 大连理工大学 | A kind of continuous crystallisation process of Multistage Membranes control |
| CN112755567A (en) * | 2020-12-30 | 2021-05-07 | 车丽平 | Energy-saving preheating structure of molecular distillation equipment |
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2016
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107899266A (en) * | 2017-11-03 | 2018-04-13 | 大连理工大学 | A kind of continuous crystallisation process of Multistage Membranes control |
| CN107899266B (en) * | 2017-11-03 | 2019-04-05 | 大连理工大学 | A kind of continuous crystallisation process of Multistage Membranes control |
| CN112755567A (en) * | 2020-12-30 | 2021-05-07 | 车丽平 | Energy-saving preheating structure of molecular distillation equipment |
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