CN202279711U - Multiple-effect evaporation device for treating high-salt waste water - Google Patents
Multiple-effect evaporation device for treating high-salt waste water Download PDFInfo
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- CN202279711U CN202279711U CN2011204191141U CN201120419114U CN202279711U CN 202279711 U CN202279711 U CN 202279711U CN 2011204191141 U CN2011204191141 U CN 2011204191141U CN 201120419114 U CN201120419114 U CN 201120419114U CN 202279711 U CN202279711 U CN 202279711U
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- Vaporization, Distillation, Condensation, Sublimation, And Cold Traps (AREA)
Abstract
The utility model relates to the technical field of treatment of high-salt waste water, in particular to a multiple-effect evaporation device for treating high-salt waste water. The multiple-effect evaporation device comprises a scraper type evaporator, a heater, a forced circulation evaporator, a steam-water separator and a condenser, wherein the scraper type evaporator is provided with a steam production inlet and a waste water inlet; an upper outlet end of the scraper type evaporator is connected with an inlet end of the heater through a pipeline; a lower outlet end of the scraper type evaporator is connected with a lower inlet end of the forced circulation evaporator; an outlet end of the heater is connected with an upper inlet end of the forced circulation evaporator; an upper outlet end of the forced circulation evaporator is connected with a lower inlet end of the steam-water separator; the lower end of the forced circulation evaporator is provided with a salt outlet; an upper outlet end of the steam-water separator is connected with an inlet end of the condenser; a lower outlet end of the steam-water separator is connected with a lower inlet end of the forced circulation evaporator; and an outlet end of the condenser is used for outputting and recovering tap water. Through the device, the energy consumption is effectively reduced, the liquid outlet speed is increased, and the equipment cost is low.
Description
Technical field
The utility model belongs to high-salt wastewater Treatment Technology field, concrete relates to a kind of multi-effect evaporating device of handling high-salt wastewater.
Background technology
Current, the high salinity waste water of a large amount of dischargings such as trade effluent, municipal effluent directly causes river water quality
Salinity improves, and brings more and more serious pollution for soil, surface water, underground water, jeopardizes ecotope, and HUMAN HEALTH is produced harm.Simultaneously, for industry, high-salt wastewater produces corrosion to industrial equipments, can shorten duration of service.
For the high-salt wastewater of industrial discharge, the processing mode of present stage adopts multiple-effect evaporator to carry out evaporation concentration earlier usually.Solution evaporation concentrates normal falling film evaporation and forced circulation evaporation, the transpiring moisture enriching soln of adopting.For falling-film evaporator, because high salinity waste water is prone to crystallization, so when using falling-film evaporator that high-salt wastewater is carried out evaporation concentration, along with moisture evaporation, separating out of sodium chloride crystal will cause the falling-film evaporator generating tube to stop up.Pump feed evaporator can remedy above-mentioned deficiency, and still, the pump feed evaporator power consumption is big, and evaporation capacity is low.At present, for realizing steam rational Match in the multiple-effect evaporation, when the number design is imitated in evaporation; When not reaching the forced circulation evaporation strength of solution that needs employing, also can only transfer the employing forced circulation evaporation to, make the pump circulation solution amount increase like this toward contact; Increase thereby cause evaporating power consumption, the evaporation cost is big, in addition; Adopt pump circulation too early, also can reduce fluid speed.
Summary of the invention
The purpose of the utility model is to the defective of above-mentioned existence a kind of multi-effect evaporating device of handling high-salt wastewater to be provided.This device effectively reduces energy consumption, improve fluid speed, and equipment cost is low.
The technical scheme of the utility model is: a kind of multi-effect evaporating device of handling high-salt wastewater comprises scraper-type vaporizer, well heater, pump feed evaporator, steam separator, condensing surface; Described scraper-type vaporizer is provided with living steam-in and waterwater entrance; The top exit end of this scraper-type vaporizer links to each other with the well heater entrance end through pipeline, and described scraper-type vaporizer lower part outlet end links to each other with pump feed evaporator lower inlet end through pipeline and pump; Described heater outlet end links to each other with pump feed evaporator upper inlet end through pipeline; Described pump feed evaporator top exit end links to each other with steam separator lower inlet end through pipeline, and this pump feed evaporator lower end is provided with salt outlet; Described steam separator top exit end links to each other with the condenser inlet end through pipeline, and described steam separator lower part outlet end links to each other with pump feed evaporator lower inlet end through pipeline; Described condensator outlet end is used for output and reclaims tap water.
Described pump is a forced circulation pump.
The beneficial effect of the utility model is: the utility model will finally concentrate to imitate by single forced circulation evaporation and change the evaporation of part employing scraper-type into, and part adopts the combination evaporator mode of forced circulation evaporation.The scraper-type evaporator effectiveness is high, and ability is big, is 100～300Kg/h to the evaporation of water amount, and it is short in the generating surface residence time to be processed material, and its internal structure makes material be difficult for crystallization, thereby can not cause evaporator evaporation pipe plug plug.Therefore the treatment effect of scraper-type vaporizer commute crystalline high-salt wastewater will be got well than falling-film evaporator.The combination evaporator mode of present technique scheme has also remedied that single forced circulation evaporation power consumption is big, and evaporation capacity is low, and the big defective of evaporation cost has reduced the steam power consumption of equipment operation, greatly reduces the production cost of enterprise.
Description of drawings
Fig. 1 is the structural representation of the utility model embodiment;
Wherein, 1 is the scraper-type vaporizer, and 2 is pump, and 3 is well heater, and 4 is pump feed evaporator, and 5 is steam separator, and 6 is condensing surface.
Embodiment
Below in conjunction with accompanying drawing, the technical scheme of the utility model is carried out detailed explanation.
As can be seen from Figure 1; A kind of multi-effect evaporating device of handling high-salt wastewater of the utility model; Comprise scraper-type vaporizer 1, well heater 3, pump feed evaporator 4, steam separator 5, condensing surface 6; Wherein, described scraper-type vaporizer 1 is as 1st effective evaporator, and described pump feed evaporator 4 is as 2nd effect evaporator.
Described scraper-type vaporizer 1 upper inlet end feeds gives birth to steam, and the lower inlet end feeds high-salt wastewater, is evaporated to when needing to adopt forced circulation evaporation concentration, changes pump feed evaporator 4 over to and carries out forced circulation evaporation.Described scraper-type vaporizer 1 top exit end links to each other with well heater 3 entrance ends through pipeline, and one of described thus scraper-type vaporizer 1 top exit end is imitated steam and got into further heating in the described well heater 3.Described scraper-type vaporizer 1 lower part outlet end links to each other with pump feed evaporator 4 lower inlet ends through pipeline and pump 2, and the liquid concentrator of described scraper-type vaporizer 1 lower part outlet end pumps into pump feed evaporator 4 and proceeds evaporation concentration.Described well heater 3 exit end link to each other with pump feed evaporator 4 upper inlet ends through pipeline, and one imitates steam feeds in the pump feed evaporator 4 through heater heats.
Described pump feed evaporator 4 top exit end link to each other with steam separator 5 lower inlet ends through pipeline; That carries out that forced circulation evaporation produced two imitates steam and gets into steam separator 5 by described pump feed evaporator 4 top exit end through pipeline, and 5 pairs two of described steam separators are imitated steam and carried out separating of water vapor and liquid concentrator.Described pump feed evaporator 4 lower part outlet ends obtain bullion salt.Described steam separator 5 top exit end link to each other with condensing surface 6 entrance ends through pipeline, and the exit end of condensing surface 6 obtains the tap water of recovery.Described steam separator 5 lower part outlet ends link to each other with pump feed evaporator 4 lower inlet ends through pipeline; 5 isolated liquid concentrators of steam separator pass back into pump feed evaporator 4 by described steam separator 5 lower part outlet ends through pipeline, continue evaporation concentration.
Described pump 2 is a forced circulation pump.Because high-salt wastewater is to be prone to crystalline solution, in the solution course of conveying, transport pipe is resulted in blockage easily.Therefore, selected pump is a forced circulation pump.
Claims (2)
1. a multi-effect evaporating device of handling high-salt wastewater is characterized in that, comprises scraper-type vaporizer, well heater, pump feed evaporator, steam separator, condensing surface; Described scraper-type vaporizer is provided with living steam-in and waterwater entrance; The top exit end of this scraper-type vaporizer links to each other with the well heater entrance end through pipeline, and described scraper-type vaporizer lower part outlet end links to each other with pump feed evaporator lower inlet end through pipeline and pump; Described heater outlet end links to each other with pump feed evaporator upper inlet end through pipeline; Described pump feed evaporator top exit end links to each other with steam separator lower inlet end through pipeline, and this pump feed evaporator lower end is provided with salt outlet; Described steam separator top exit end links to each other with the condenser inlet end through pipeline, and described steam separator lower part outlet end links to each other with pump feed evaporator lower inlet end through pipeline; Described condensator outlet end is used for output and reclaims tap water.
2. multi-effect evaporating device according to claim 1 is characterized in that, described pump is a forced circulation pump.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204191141U CN202279711U (en) | 2011-10-28 | 2011-10-28 | Multiple-effect evaporation device for treating high-salt waste water |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204191141U CN202279711U (en) | 2011-10-28 | 2011-10-28 | Multiple-effect evaporation device for treating high-salt waste water |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202279711U true CN202279711U (en) | 2012-06-20 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011204191141U Expired - Fee Related CN202279711U (en) | 2011-10-28 | 2011-10-28 | Multiple-effect evaporation device for treating high-salt waste water |
Country Status (1)
| Country | Link |
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| CN (1) | CN202279711U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102992531A (en) * | 2012-12-14 | 2013-03-27 | 江苏长三角精细化工有限公司 | Wastewater flash evaporation desalination device and method |
-
2011
- 2011-10-28 CN CN2011204191141U patent/CN202279711U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102992531A (en) * | 2012-12-14 | 2013-03-27 | 江苏长三角精细化工有限公司 | Wastewater flash evaporation desalination device and method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120620 Termination date: 20131028 |