CN209081464U - A kind of high-salt wastewater positive pressure evaporated crystallization device based on the driving of steam power plant's heat source - Google Patents
A kind of high-salt wastewater positive pressure evaporated crystallization device based on the driving of steam power plant's heat source Download PDFInfo
- Publication number
- CN209081464U CN209081464U CN201821475795.1U CN201821475795U CN209081464U CN 209081464 U CN209081464 U CN 209081464U CN 201821475795 U CN201821475795 U CN 201821475795U CN 209081464 U CN209081464 U CN 209081464U
- Authority
- CN
- China
- Prior art keywords
- effect
- evaporator
- steam
- power plant
- salt
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Landscapes
- Heat Treatment Of Water, Waste Water Or Sewage (AREA)
Abstract
The utility model relates to a kind of high-salt wastewater positive pressure evaporated crystallization devices based on the driving of steam power plant's heat source, including high-salt wastewater feed pump, an effect preheater, multi-effect evaporator, discharging pump, forced circulation pump, thickener, out salt centrifuge and vapor-water heat exchanger.The utility model has the advantage that 1, operating cost is low, saves 70% or more ton water process expense than existing multiple-effect evaporation and MVR evaporative crystallization technique route.2, investment is low, is lower than existing multiple-effect evaporation crystallization apparatus, saves 30% or more than MVR evaporative crystallization and invests.3, multi-effect evaporator is in positive pressure evaporation operating status, therefore production run manipulation is simple.
Description
Technical field
The utility model relates to evaporative crystallization fields, and in particular to it is a kind of based on steam power plant's heat source driving high-salt wastewater just
Press evaporated crystallization device.
Background technique
China's high-salt wastewater discharge amount is huge, and at present for the processing of high-concentration salt-containing wastewater, the technological means taken is
Using the method for evaporative crystallization, principle is used as heat source by steam or electricity, carries out heating evaporation to high-salt wastewater, realizes abraum salt
With the separation of water, to achieve the purpose that improvement.
There are mainly two types of the current high-salt wastewater evaporated crystallization devices in China: one is use to use steam as the more of heat source
Imitate evaporator；One is using using electricity as the MVR evaporated crystallization device of driving heat source, crystallized relative to multiple-effect evaporation, MVR
Evaporated crystallization device does not utilize steam, relies solely on electric energy, and ton water power consumes substantially at 50 degree or so in industry at present, thus more
Energy conservation, generally at 70 yuan or so, MVR evaporative crystallization ton water process expense generally exists multiple-effect evaporation crystallization apparatus ton water process expense
40 yuan or so.
Although the appearance of MVR evaporative crystallization greatly reduces the cost of disposal of enterprise's evaporated crystallization device, it is run
Energy consumption is still that most enterprises are difficult to bear, to handle 40m3For/h high-salt wastewater, year, expenditure was according to calculating in 8000 hours, year
Evaporative crystallization processing cost reaches more than 1,100 ten thousand, and operating cost is surprising.
Utility model content
In view of the above technical problems, the utility model provides a kind of high-salt wastewater positive pressure steaming based on the driving of steam power plant's heat source
Send out crystallization apparatus.
The technical solution that the utility model solves above-mentioned technical problem is as follows: a kind of based on the with high salt of steam power plant's heat source driving
Waste water positive pressure evaporated crystallization device, including high-salt wastewater feed pump, effect a preheater, multi-effect evaporator, discharging pump, forced circulation
Pump, goes out salt centrifuge and vapor-water heat exchanger at thickener；
The high-salt wastewater feed pump is connect with the feed inlet of the effect preheater, the discharge port of the effect preheater
It being connect with the feeding inlet of the multi-effect evaporator, the discharge port of the multi-effect evaporator is connect with the feeding inlet of the thickener,
The discharge port of the thickener with it is described go out salt centrifuge feeding inlet connect, it is described go out salt centrifuge mother liquor reflux outlet and
The mother liquor reflux entrance of last evaporator in the multi-effect evaporator connects, the discharging pump respectively with the multi-effect evaporator
In the discharge port of preceding 1st effective evaporator connected with the feeding inlet of rear 1st effective evaporator, the forced circulation pump respectively with the multiple-effect
The interior loop head of each effect evaporator in evaporator is connected with interior loop exit, the 1st effective evaporator in the multi-effect evaporator
Steam inlet be passed through the high steam of steam power plant, the steam inlet of the steam (vapor) outlet of preceding 1st effective evaporator and rear 1st effective evaporator
Connection, the steam (vapor) outlet of last evaporator are connect with the steam inlet of the vapor-water heat exchanger, two effect in the multi-effect evaporator
The condensation-water drain of the above evaporator and the vapor-water heat exchanger is connect with the condensing water inlet of the effect preheater.
The beneficial effects of the utility model are:
1, it being put forward for the first time and crystallization is evaporated to high-salt wastewater using the steam energy of steam power plant, operating cost is low, than
Existing multiple-effect evaporation and MVR evaporative crystallization technique route save 70% or more ton water process expense.
2, investment is low, is lower than existing multiple-effect evaporation crystallization apparatus, saves 30% or more than MVR evaporative crystallization and invests.
3, multi-effect evaporator is in positive pressure evaporation operating status, therefore production run manipulation is simple.
Based on the above technical solution, the utility model can also do following improvement.
Further, the effect preheater uses board-like or tubular heat exchanger.
Further, the vapor-water heat exchanger is connect with boiler DW system demineralized water system, heating system and/or heat-insulation system.
Further, package unit uses stainless steel or dual-phase steel material.
Detailed description of the invention
Fig. 1 is that a kind of high-salt wastewater positive pressure based on the driving of steam power plant's heat source provided by the embodiment of the utility model evaporates knot
The operation logic schematic diagram of brilliant device.
Specific embodiment
The principles of the present invention and feature are described below in conjunction with attached drawing, example is served only for explaining that this is practical
It is novel, it is not intended to limit the scope of the utility model.
Fig. 1 is that a kind of high-salt wastewater positive pressure based on the driving of steam power plant's heat source provided by the embodiment of the utility model evaporates knot
The operation logic schematic diagram of brilliant device, as shown in Figure 1, the device includes high-salt wastewater feed pump, effect a preheater, multiple-effect evaporation
Device, forced circulation pump, thickener, goes out salt centrifuge and vapor-water heat exchanger at discharging pump.
The high-salt wastewater feed pump is connect with the feed inlet of the effect preheater, the discharge port of the effect preheater
It being connect with the feeding inlet of the multi-effect evaporator, the discharge port of the multi-effect evaporator is connect with the feeding inlet of the thickener,
The discharge port of the thickener with it is described go out salt centrifuge feeding inlet connect, it is described go out salt centrifuge mother liquor reflux outlet and
The mother liquor reflux entrance of last evaporator in the multi-effect evaporator connects, the discharging pump respectively with the multi-effect evaporator
In the discharge port of preceding 1st effective evaporator connected with the feeding inlet of rear 1st effective evaporator, the forced circulation pump respectively with the multiple-effect
The interior loop head of each effect evaporator in evaporator is connected with interior loop exit, the 1st effective evaporator in the multi-effect evaporator
Steam inlet be passed through the high steam of steam power plant, the steam inlet of the steam (vapor) outlet of preceding 1st effective evaporator and rear 1st effective evaporator
Connection, the steam (vapor) outlet of last evaporator are connect with the steam inlet of the vapor-water heat exchanger, two effect in the multi-effect evaporator
The condensation-water drain of the above evaporator and the vapor-water heat exchanger is connect with the condensing water inlet of the effect preheater.
Optionally, in this embodiment, the effect preheater uses board-like or tubular heat exchanger.
Optionally, in this embodiment, the vapor-water heat exchanger and boiler DW system demineralized water system, heating system and/or heat preservation
System connection.
Optionally, in this embodiment, package unit uses stainless steel or dual-phase steel material.
Specifically, being said so that multi-effect evaporator is using triple effect evaporator as an example to the function of each component part below
It is bright:
1, high-salt wastewater feed pump: using 316L (stainless steel) or 2205 (dual phase steel) materials, corrosion-resistant.
2, an effect preheater: shell and tube or plate heat exchanger are used, using 316L (stainless steel) or 2205 (dual phase steel) materials
Material is realized and carries out heat exchange to evaporating condensation type, and waste heat in condensed water is recycled
3,1st effective evaporator: realizing the evaporation and concentration to high-salt wastewater, realizes forced-circulation evaporation by forced circulation pump 1
Mode, 1st effective evaporator import are high steam, have bearing capacity, are to belong to pressure vessel.
4, it 2nd effect evaporator: is realized using an effect evaporation secondary steam and the double evaporation-cooling of high-salt wastewater is concentrated, by strong
Circulating pump 2 processed realizes forced-circulation evaporation mode, and 2nd effect evaporator import is high steam, has bearing capacity, is to belong to pressure
Force container.
5, triple effect evaporation crystallizer: the evaporating, concentrating and crystallizing of high-salt wastewater is gone out using two effect evaporation secondary steam realizations
Salt realizes forced-circulation evaporation mode by forced circulation pump 3, and triple effect evaporator import is high steam, has bearing capacity,
It is to belong to pressure vessel.Triple effect evaporation crystallizer is connect with thickener, vapor-water heat exchanger.Triple effect evaporation crystallizer generates steam
Positive pressure steam, vapor (steam) temperature are greater than 100 DEG C or more.
6, thickener: for abraum salt in concentration evaporation liquid, after static enrichment, by thickener bottom discharge, into
Enter out salt centrifuge.
7, go out salt centrifuge: abraum salt is centrifuged out from waste liquid, realize and abraum salt is dehydrated, liquid returns after centrifuge centrifugation
It returns triple effect and continues to participate in evaporative crystallization, centrifuge uses two-stage material-pushing centrifuge or link-suspended basket centrifuge.
8, vapor-water heat exchanger: vapor-water heat exchanger uses shell and tube or plate heat exchanger, into can be for vapor-water heat exchanger
Boiler demineralized water, demineralized water return to boiler after preheating, achieve the purpose that waste heat recycles；Or enter vapor-water heat exchanger is to supply
Heating system return water, to realize the purpose to end steam heating.
Specifically, the operation logic of the device is as follows:
As shown in Figure 1, desulfurization wastewater by water pump enter an effect preheater, two effects and the two above evaporation condensed waters of effect with
High-salt wastewater passes through heat exchange, recycles condensed water thermal energy, and high-salt wastewater enters 1st effective evaporator by preheating, and preheater uses plate
Formula or tubular heat exchanger.
1st effective evaporator is passed through high-pressure power plant steam, and steam pressure is higher than 0.2MPa or more, 1st effective evaporator condensed water
Back boiler, 1st effective evaporator use forced-circulation evaporator, and vaporization chamber is connect by pipeline with forced circulation pump, form waste water
It recycles closed circuit.1st effective evaporator secondary steam enters 2nd effect evaporator, and 2nd effect evaporator equally takes forced-circulation evaporator, and two
It imitates evaporator condensation water and enters an effect preheater.2nd effect evaporator generates high steam three times and enters triple effect evaporation crystallizer, and three
It imitates crystallizing evaporator and uses forced-circulation evaporation crystallizer, condensed water enters an effect preheater, and outlet vapor is positive pressure steam,
Positive pressure steam enters vapor-water heat exchanger by shell and tube or plate heat exchanger, can be with preboiler demineralized water by vapor-water heat exchanger
Or heating system is arrived as heating source, heating heating is carried out to heating water return.
Triple effect evaporation crystallizer mother liquor enters thickener, and abraum salt passes through stiff, and mother liquor enters salt centrifuge, and centrifuge will
It is separated by solid-liquid separation, isolates crystal salt, remaining mother liquor returns to triple effect evaporation crystallizer, continues to participate in evaporative crystallization.
Package unit is in positive pressure evaporating state always, and end steam is efficiently utilized, therefore eliminates traditional vacuum
Pump and tail end condenser equipment, therefore investing will be lower than traditional multi-effect evaporator.
Vapor-water heat exchanger uses board-like or tubular heat exchanger, can preheat out salt water, can also by heat recovery boiler
To enter heating water return, it to be used for heating system return.
Package unit uses 316L (stainless steel) or 2205 (dual phase steel) materials, and solution ph is greater than 7.
Package unit can be designed to single-action or two effect modes, to adapt to the occasion of different steam pressures.
The utility model, which has been put forward for the first time, is evaporated crystallization to high-salt wastewater using steam power plant's steam energy, and will be secondary
Steam thermal energy recycles twice-cooked stir-frying furnace system or is used for heating system, achievees the purpose that hardly to waste thermal energy, realizes low cost disposition
High-salt wastewater, it is following that ton water process goes out this lower than 10 degree electricity.
The above is only the preferred embodiment of the present invention, is not intended to limit the utility model, all practical at this
Within novel spirit and principle, any modification, equivalent replacement, improvement and so on should be included in the guarantor of the utility model
Within the scope of shield.
Claims (4)
1. a kind of high-salt wastewater positive pressure evaporated crystallization device based on the driving of steam power plant's heat source, which is characterized in that including with high salt useless
Water feed pump, multi-effect evaporator, discharging pump, forced circulation pump, thickener, goes out salt centrifuge and steam-water heat exchanging at one effect preheater
Device；
The high-salt wastewater feed pump is connect with the feed inlet of the effect preheater, the discharge port of the effect preheater and institute
The feeding inlet connection of multi-effect evaporator is stated, the discharge port of the multi-effect evaporator is connect with the feeding inlet of the thickener, described
The discharge port of thickener with it is described go out salt centrifuge feeding inlet connect, it is described go out salt centrifuge mother liquor reflux export with it is described
The mother liquor reflux entrance of last evaporator in multi-effect evaporator connects, the discharging pump respectively in the multi-effect evaporator before
The discharge port of 1st effective evaporator is connected with the feeding inlet of rear 1st effective evaporator, the forced circulation pump respectively with the multiple-effect evaporation
The interior loop head of each effect evaporator in device is connected with interior loop exit, the steaming of the 1st effective evaporator in the multi-effect evaporator
Vapour entrance is passed through the high steam of steam power plant, the steam inlet company of the steam (vapor) outlet of preceding 1st effective evaporator and rear 1st effective evaporator
Connect, the steam (vapor) outlet of last evaporator is connect with the steam inlet of the vapor-water heat exchanger, in the multi-effect evaporator two effect with
The condensation-water drain of upper evaporator and the vapor-water heat exchanger is connect with the condensing water inlet of the effect preheater.
2. the high-salt wastewater positive pressure evaporated crystallization device according to claim 1 based on the driving of steam power plant's heat source, feature
It is, the effect preheater uses board-like or tubular heat exchanger.
3. the high-salt wastewater positive pressure evaporated crystallization device according to claim 1 based on the driving of steam power plant's heat source, feature
It is, the vapor-water heat exchanger is connect with boiler DW system demineralized water system, heating system and/or heat-insulation system.
4. the high-salt wastewater positive pressure evaporated crystallization device according to claim 1 based on the driving of steam power plant's heat source, feature
It is, package unit uses stainless steel or dual-phase steel material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821475795.1U CN209081464U (en) | 2018-09-10 | 2018-09-10 | A kind of high-salt wastewater positive pressure evaporated crystallization device based on the driving of steam power plant's heat source |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821475795.1U CN209081464U (en) | 2018-09-10 | 2018-09-10 | A kind of high-salt wastewater positive pressure evaporated crystallization device based on the driving of steam power plant's heat source |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209081464U true CN209081464U (en) | 2019-07-09 |
Family
ID=67116194
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821475795.1U Expired - Fee Related CN209081464U (en) | 2018-09-10 | 2018-09-10 | A kind of high-salt wastewater positive pressure evaporated crystallization device based on the driving of steam power plant's heat source |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209081464U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113803701A (en) * | 2020-06-12 | 2021-12-17 | 赫普能源环境科技股份有限公司 | Solid heat storage electric boiler coupling salt production system and power grid peak regulation and frequency modulation method |
-
2018
- 2018-09-10 CN CN201821475795.1U patent/CN209081464U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113803701A (en) * | 2020-06-12 | 2021-12-17 | 赫普能源环境科技股份有限公司 | Solid heat storage electric boiler coupling salt production system and power grid peak regulation and frequency modulation method |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN205773844U (en) | A kind of high-salt wastewater triple effect evaporation crystallization apparatus without cooling down water | |
| CN104192927A (en) | Phenol-acetone wastewater evaporation desalting pretreatment process | |
| CN207871571U (en) | A kind of evaporating, concentrating and crystallizing system | |
| CN204151177U (en) | Phenol-acetone waste water evaporative desalination pretreatment unit | |
| CN111362492A (en) | Double-effect MVR evaporation treatment method | |
| CN103739025A (en) | High-efficiency and energy-saving multi-effect evaporator system | |
| CN201587871U (en) | Multi-stage vacuum distillation sea water desalinating device | |
| CN103253819B (en) | Production technology for treating ternary-monomer wastewater and extracting sodium sulfate | |
| CN203540090U (en) | Itaconic acid energy-saving-type four-effect concentrating and crystallizing device | |
| CN209081464U (en) | A kind of high-salt wastewater positive pressure evaporated crystallization device based on the driving of steam power plant's heat source | |
| CN103508877A (en) | Energy-saving method and device for four-effect concentration and crystallization of itaconic acid | |
| CN201660457U (en) | Novel multiple-effect distilled sea water desalination device | |
| CN211971803U (en) | Novel materialized wastewater triple-effect evaporation system | |
| CN204999762U (en) | Concentrated crystallization equipment of carnallite waste water | |
| CN207904089U (en) | Pickles high-salt wastewater MVR desalination biochemical devices | |
| CN207031012U (en) | A kind of high-salt wastewater concentrating and treating system | |
| CN114949893B (en) | Evaporation crystallization process and device for producing lithium chloride from salt lake brine | |
| CN214344476U (en) | MVR evaporation concentration equipment used in potassium chloride evaporation industry | |
| CN213294703U (en) | Fly ash desalination system containing potassium chloride salt | |
| CN210795831U (en) | Double-effect falling film and single-effect forced circulation double-row double-steam-inlet MVR evaporation crystallization system | |
| CN210764418U (en) | Evaporation crystallization separation integration system | |
| CN210825507U (en) | Flash evaporation and evaporation concentration system of heat pump | |
| CN209809543U (en) | Seven-effect tube type falling film evaporator set | |
| CN209396925U (en) | A kind of evaporated crystallization device based on steam pressure energy | |
| CN206940445U (en) | The system for separating and purifying of desulfurization wastewater |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20190709 Termination date: 20210910 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |