CN201770570U - Treatment system for waste water containing high-concentration ammonium salt and sodium salt - Google Patents
Treatment system for waste water containing high-concentration ammonium salt and sodium salt Download PDFInfo
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- CN201770570U CN201770570U CN201020268492XU CN201020268492U CN201770570U CN 201770570 U CN201770570 U CN 201770570U CN 201020268492X U CN201020268492X U CN 201020268492XU CN 201020268492 U CN201020268492 U CN 201020268492U CN 201770570 U CN201770570 U CN 201770570U
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Abstract
The utility model provides a treatment system for waste water containing high-concentration ammonium salt and sodium salt, which comprises a preheater, an evaporating crystallization system, a primary centrifugal separator, a cooling crystallization system and a secondary centrifugal separator, wherein the outlet of the preheater is connected with the material inlet of the evaporating crystallization system by a pipeline, the material outlet of the evaporating crystallization system is connected with the material inlet of the primary centrifugal separator by a pipeline, the liquid material outlet of the primary centrifugal separator is connected with the material inlet of the cooling crystallization system by a pipeline, the material outlet of the cooling crystallization system is connected with the material inlet of the secondary centrifugal separator by a pipeline, and the liquid material outlet of the secondary centrifugal separator is connected with the material inlet of the evaporating crystallization system by a pipeline. The treatment system can respectively recycle ammonium salt and sodium salt in the waste water to be used as industrial material and agricultural manure, and simultaneously, the waste water can be reused in the production system after evaporation and condensation, thus realizing comprehensive recycle of resources.
Description
Technical field
The utility model relates to a kind of high density ammonium salt and sodium salt industrial waste water treatment system of containing, and is applicable to the processing of nonferrous smelting industry and salt chemical engineering field ammoniated wastewater.
Background technology
Hydrometallurgy production process and salt chemical engineering production process can be discharged a kind of waste water that contains the high density ammonium salt, and their main component is: NH
4Cl, (NH
4)
2SO
4, NaCl and Na
2SO
4Present processing mode has following several
1, adds evaporative crystallization NaCl and Na behind the alkali deamination
2SO
4, this method is administered not thorough;
2, do not add the alkali evaporating, concentrating and crystallizing, solid is the mixture of ammonium salt and sodium salt, becomes another kind of solid waste.
In the prior art, also ammonium salt and sodium salt are not distinguished treatment process and the device that all utilizes as the resource Separation and Recovery, particularly in waste water, have the Cl of high density simultaneously
-1, SO
4 -2The time, also there are not practical technology that reclaims ammonium salt and sodium salt respectively and supporting treatment facility at present.
The utility model content
The purpose of this utility model provides a kind of treatment system that contains high density ammonium salt and sodium salt waste water, and this system can isolate highly purified ammonium salt and sodium salt, makes ammonium salt and sodium salt raw material and the agricultural fertilizer as industrial application.
For achieving the above object, the utility model is by the following technical solutions:
A kind of treatment system that contains high density ammonium salt and sodium salt waste water is characterized in that, comprises preheater, evaporation and crystallization system, first-stage centrifugal separator, crystallisation by cooling system and secondary centrifuge separator; The outlet of described preheater is connected through pipeline with the material inlet of described evaporation and crystallization system, the material outlet of described evaporation and crystallization system is connected through pipeline with the material inlet of first-stage centrifugal separator, the outlet of the liquid material of described first-stage centrifugal separator is connected through pipeline with the material inlet of described crystallisation by cooling system, the material outlet of described crystallisation by cooling system is connected through pipeline with the material inlet of described secondary centrifuge separator, and the liquid material outlet of described secondary centrifuge separator is connected through pipeline with the material inlet of described evaporation and crystallization system.
In the above-mentioned treatment system, be equipped with water pump on the pipeline that links to each other between described preheater, evaporation and crystallization system, first-stage centrifugal separator, crystallisation by cooling system and the secondary centrifuge separator.
When above-mentioned treatment system of the present utility model is handled the waste water that contains high density sodium salt and ammonium salt, be the operate continuously process.After pretreated former water is by the preheater preheating, enter and carry out evaporating, concentrating and crystallizing in the evaporation and crystallization system, separate out the sodium salt solid; Simultaneously, evaporation and crystallization system effluxes a part of condensing crystal liquid and enters the first-stage centrifugal separator and isolate the sodium salt solid, and gained liquid enters and carries out crystallization in the crystallisation by cooling system, separates out ammonium salt solid; The non-stop run of crystallisation by cooling system, the control certain liquid level; Crystal solution is isolated ammonium salt solid with pump input second stage sedimentator, and gained liquid returns evaporation and crystallization system.
Further, described evaporation and crystallization system can be multi-effect evaporation systems such as an effect, two effects, triple effect or quadruple effect, also can be the thermo-compression evaporation concentration systems.Usually multiple-effect heating evaporation system progression is many more, it is few more to evaporate one ton of required steam of water, but its facility investment and power consumption meeting increase, and the preferred triple effect evaporation of the utility model system, four-effect evaporator system or vapor compression heat pump type vapo(u)rization system are to reduce comprehensive energy consumption.
Each of described multi-effect evaporation system is imitated vapo(u)rization system by evaporator room, interchanger and recycle pump composition, and evaporator room forms the loop between recycle pump and interchanger; The material outlet of described preheater is connected through pipeline with last material inlet of imitating interchanger, and first material outlet of imitating evaporator room is connected through pipeline with the material inlet of described first-stage centrifugal separator.
Preferable, described first imitates in the evaporator room and is provided with mechanical stirring device, preventing sodium salt crystal at the evaporator room inwall, and effectively controls the sodium salt particle diameter, makes particle diameter less than ф 0.5mm.
Described multi-effect evaporation system adopts countercurrent flow, and its evaporation concentration liquid is opposite with the trend of steam.Back one is imitated the steam that evaporator room evaporated and is used for the preceding interchanger heating of imitating, and stoste in the end one is imitated heating evaporation, and high salt concentration (saturated crystallization) solution is imitated heat first and evaporated, and sodium salt is imitated saturated crystallization in the evaporator room first.
Described pump type heat evaporation concentration system comprises recycle pump, interchanger, evaporator room and vapor compression heat pump, and evaporator room forms the loop between recycle pump and interchanger; The vapour outlet of described evaporator room is connected through pipeline with the heating medium inlet of interchanger by described vapor compression heat pump, and the evaporated vapor of evaporator room can be used as the thermal source of interchanger after the vapor compression heat pump compression heats up; The material outlet of described preheater is connected through pipeline with the material inlet of described interchanger, and the material outlet of described evaporator room is connected through pipeline with the material inlet of described first-stage centrifugal separator.
Preferable, be provided with mechanical stirring device in the described evaporator room, preventing sodium salt crystal, and effectively control the sodium salt particle diameter at the evaporator room inwall, make particle diameter less than ф 0.5mm.
Further, described crystallisation by cooling system comprises vacuum condensation system and the vacuum crystallization jar of being made up of vacuum pump and condenser; The vapour outlet of described vacuum crystallization jar is connected through pipeline with the inlet of condenser; The material inlet of described vacuum crystallization jar is connected through pipeline with the liquid material outlet of described first-stage centrifugal separator, and the material outlet of described vacuum crystallization jar is connected through pipeline with the material inlet of described secondary centrifuge separator.
Preferable, be provided with mechanical stirring device in the described vacuum crystallization jar.Prevent ammonium salt in the inwall crystallization, and can make ammonium salt crystallization body particle diameter less than 0.5mm, small-crystalline is not easy to damage circulating pump impeller.
Further, be equipped with water wash system in first-stage centrifugal separator described in the above-mentioned treatment system and the secondary centrifuge separator.To improve the purity of gained sodium salt and ammonium salt.
The present invention is directed to the waste water that contains high density ammonium salt and sodium salt, the above-mentioned treatment system that provides reclaims ammonium salt and sodium salt in the waste water respectively, can be used as the raw material and the agricultural fertilizer of industrial application, but while waste water reuse production system behind evaporative condenser.Control useless the time, accomplish that resource comprehensive recycles, reach no waste water and solid waste discharge, improved the economic benefit and the social benefit of factory.
Description of drawings
Fig. 1 handles the treatment unit schematic flow sheet of ammonium salt-containing and sodium salt waste water for adopting four-effect evaporator system;
Fig. 2 handles the treatment unit schematic flow sheet of ammonium salt-containing and sodium salt waste water for adopting vapor compression heat pump type vapo(u)rization system.
Embodiment
Further set forth the utility model below in conjunction with specific embodiment, should be understood that these embodiment only be used to the utility model is described and be not used in the restriction protection domain of the present utility model.
Embodiment 1
As shown in Figure 1: the Waste Water Treatment of ammonium salt-containing of the present utility model and sodium salt, adopt four-effect evaporator system.The treating processes of waste water is as follows:
Former water 1 is sent into preheater 3 preheatings by pre-heat pump 2, and the thermal source 32 of preheater 3 is imitated evaporation condensate from each.Recycle pump 6, vaporizer 5 and interchanger 7 are formed four-effect evaporator system, enter evaporator room 5 after heating up by interchanger 7 by recycle pump 6 pump circulation from the waste water of preheater 3, concentrated by recycle pump 6 continuous circulation heating evaporations again after evaporator room 5 solution evaporations concentrate.Evaporator room overflow portion solution is sent into last effect evaporation concentration system by pump 29.Vacuum pump 24 links to each other with evaporator room 5 by condenser 25, and the water vapour of evaporator room 5 evaporations is drawn into condenser 25 and condenses into water 23, and the water coolant 22 of condenser 25 is supplied by the outside.
Recycle pump 9, interchanger 10 and evaporator room 8 are formed the three-effect evaporation and condensation system, and principle is with four-effect evaporator system.Just the steam of evaporator room 8 is used to the quadruple effect interchanger and makes thermal source.Water pump 30 flows to second with evaporator room 8 overflow portion solution and imitates evaporation concentration system.
Form the vacuum condensation system by vacuum pump 28, condenser 29 and link to each other with vacuum crystallization jar 21, the steam of extracting vacuum tank 21 out condenses into water 27 in condenser 29, and cooling water source 26 is supplied by the outside.Vacuum crystallization jar 21 is provided with mechanical stirrer.
Present embodiment only is that example further specifies content of the present utility model with the four-effect evaporator system, adopts the principle of an effect, two effects or triple effect evaporation system all identical with four-effect evaporator system, repeats no more.
As shown in Figure 2: the Waste Water Treatment of ammonium salt-containing of the present utility model and sodium salt, adopt vapor compression heat pump type vapo(u)rization system.The treating processes of waste water is as follows:
Former water 1 is sent into preheater 3 preheatings by pre-heat pump 2, and the thermal source of preheater 3 is by condensate pump 4 supplies, and cooling back water of condensation 5 can be back to production system.
Recycle pump 9, interchanger 6, evaporator room 8 are formed evaporation concentration system with vapor compression heat pump 7.Waste water from preheater 3 enters evaporator room 8, and is heated by interchanger 6 by recycle pump 9 pump circulation, and heating back solution circulated enters evaporator room 8 evaporating, concentrating and crystallizings.Heat pump 7 compresses the thermal source of back as interchanger 6 that heat up with the evaporated vapor of evaporator room 8.
The crystallization solution that water pump 10 is extracted part evaporator room 8 out enters first-stage centrifugal device 11, isolates finished product sodium salt 12, establishes water wash system in the first-stage centrifugal device 11, has the washing function, isolates solid finished product sodium salt 34.First-stage centrifugal device 11 filtered liquids enter vacuum crystallization jar 13, by vacuum-evaporation freezing and crystallizing ammonium salt.Vacuum pump 15 and condenser 14 are formed the vacuum system of vacuum crystallization jars 13, and the steam in the vacuum crystallization jar 13 are pumped down in the condenser 14, and the water 16 that is cooled is condensed into water 21.Ammonium salt crystallization solution in the vacuum crystallization jar 13 are carried secondary sedimentators 18 by water pump 16, establish water wash system in the secondary sedimentator 18, have the washing function, isolate finished product ammonium salt 19 at this, filtered liquid by pump 20 loopbacks in the circulating and evaporating system.
Claims (9)
1. the treatment system of ammonium salt-containing and sodium salt waste water is characterized in that, comprises preheater, evaporation and crystallization system, first-stage centrifugal separator, crystallisation by cooling system and secondary centrifuge separator; The outlet of described preheater is connected through pipeline with the material inlet of described evaporation and crystallization system, the material outlet of described evaporation and crystallization system is connected through pipeline with the material inlet of first-stage centrifugal separator, the outlet of the liquid material of described first-stage centrifugal separator is connected through pipeline with the material inlet of described crystallisation by cooling system, the material outlet of described crystallisation by cooling system is connected through pipeline with the material inlet of described secondary centrifuge separator, and the liquid material outlet of described secondary centrifuge separator is connected through pipeline with the material inlet of described evaporation and crystallization system.
2. treatment system as claimed in claim 1 is characterized in that, is equipped with water pump on the pipeline that links to each other between described preheater, evaporation and crystallization system, first-stage centrifugal separator, crystallisation by cooling system and the secondary centrifuge separator.
3. treatment system as claimed in claim 1 is characterized in that, described evaporation and crystallization system is a multi-effect evaporation system; Each of described multi-effect evaporation system is imitated vapo(u)rization system by evaporator room, interchanger and recycle pump composition, and evaporator room forms the loop between recycle pump and interchanger; The material outlet of described preheater is connected through pipeline with last material inlet of imitating interchanger, and first material outlet of imitating evaporator room is connected through pipeline with the material inlet of described first-stage centrifugal separator.
4. treatment system as claimed in claim 3 is characterized in that, is provided with mechanical stirring device in the described first effect evaporator room.
5. treatment system as claimed in claim 1 is characterized in that, described evaporation and crystallization system is the thermo-compression evaporation concentration systems; Described pump type heat evaporation concentration system comprises recycle pump, interchanger, evaporator room and vapor compression heat pump, and evaporator room forms the loop between recycle pump and interchanger; The vapour outlet of described evaporator room is connected through pipeline with the heating medium inlet of interchanger by described vapor compression heat pump; The material outlet of described preheater is connected through pipeline with the material inlet of described interchanger, and the material outlet of described evaporator room is connected through pipeline with the material inlet of described first-stage centrifugal separator.
6. treatment system as claimed in claim 5 is characterized in that, is provided with mechanical stirring device in the described evaporator room.
7. treatment system as claimed in claim 1 is characterized in that, described crystallisation by cooling system comprises vacuum condensation system and the vacuum crystallization jar of being made up of vacuum pump and condenser; The vapour outlet of described vacuum crystallization jar is connected through pipeline with the inlet of condenser; The material inlet of described vacuum crystallization jar is connected through pipeline with the liquid material outlet of described first-stage centrifugal separator, and the material outlet of described vacuum crystallization jar is connected through pipeline with the material inlet of described secondary centrifuge separator.
8. treatment system as claimed in claim 7 is characterized in that, is provided with mechanical stirring device in the described vacuum crystallization jar.
9. as the described treatment system of arbitrary claim among the claim 1-8, it is characterized in that, be equipped with water wash system in described first-stage centrifugal separator and the secondary centrifuge separator.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201020268492XU CN201770570U (en) | 2010-07-22 | 2010-07-22 | Treatment system for waste water containing high-concentration ammonium salt and sodium salt |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201020268492XU CN201770570U (en) | 2010-07-22 | 2010-07-22 | Treatment system for waste water containing high-concentration ammonium salt and sodium salt |
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| CN201770570U true CN201770570U (en) | 2011-03-23 |
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| CN201020268492XU Expired - Lifetime CN201770570U (en) | 2010-07-22 | 2010-07-22 | Treatment system for waste water containing high-concentration ammonium salt and sodium salt |
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102557317A (en) * | 2011-12-29 | 2012-07-11 | 武汉科梦环境工程有限公司 | Zero-discharge treatment process for salt-containing waste water |
| CN103145150A (en) * | 2013-03-17 | 2013-06-12 | 上虞市佳和化工有限公司 | Technology and device for recycling sodium chloride from wastewater generated in process of producing silica sol by ion exchange method |
| CN103693702A (en) * | 2013-09-21 | 2014-04-02 | 四川运辉环保工程有限公司 | Gas field produced water heat pump combination demineralizing equipment and demineralizing method |
| CN104529035A (en) * | 2014-12-24 | 2015-04-22 | 北京桑德环境工程有限公司 | High-concentration organic wastewater zero-discharge treatment system and method |
| CN104926011A (en) * | 2015-06-24 | 2015-09-23 | 北京纬纶华业环保科技股份有限公司 | Evaporating and crystallizing zero-discharge treatment system and method for high-COD waste water |
| CN105645490A (en) * | 2016-01-08 | 2016-06-08 | 中铝稀土（常州）有限公司 | Rare-earth processing wastewater treatment plant and technique |
| CN106698561A (en) * | 2016-12-29 | 2017-05-24 | 哈尔滨工程大学 | Device for treating biurea condensation sewage generated from preparation of ADC (Azodicarbonamide) foaming agent with urea method and use method of device |
| CN106730942A (en) * | 2016-12-30 | 2017-05-31 | 浩蓝环保股份有限公司 | A kind of salt organic waste water low-temperature evaporation crystallization apparatus high |
| US10815132B2 (en) | 2017-04-21 | 2020-10-27 | China Petroleum & Chemical Corporation | Apparatus and method for treating waste water containing ammonium salts |
-
2010
- 2010-07-22 CN CN201020268492XU patent/CN201770570U/en not_active Expired - Lifetime
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102557317A (en) * | 2011-12-29 | 2012-07-11 | 武汉科梦环境工程有限公司 | Zero-discharge treatment process for salt-containing waste water |
| CN103145150A (en) * | 2013-03-17 | 2013-06-12 | 上虞市佳和化工有限公司 | Technology and device for recycling sodium chloride from wastewater generated in process of producing silica sol by ion exchange method |
| CN103693702A (en) * | 2013-09-21 | 2014-04-02 | 四川运辉环保工程有限公司 | Gas field produced water heat pump combination demineralizing equipment and demineralizing method |
| CN104529035A (en) * | 2014-12-24 | 2015-04-22 | 北京桑德环境工程有限公司 | High-concentration organic wastewater zero-discharge treatment system and method |
| CN104926011A (en) * | 2015-06-24 | 2015-09-23 | 北京纬纶华业环保科技股份有限公司 | Evaporating and crystallizing zero-discharge treatment system and method for high-COD waste water |
| CN105645490A (en) * | 2016-01-08 | 2016-06-08 | 中铝稀土（常州）有限公司 | Rare-earth processing wastewater treatment plant and technique |
| CN105645490B (en) * | 2016-01-08 | 2018-11-02 | 中铝稀土（常州）有限公司 | A kind of rare earth processing waste water processing unit and technique |
| CN106698561A (en) * | 2016-12-29 | 2017-05-24 | 哈尔滨工程大学 | Device for treating biurea condensation sewage generated from preparation of ADC (Azodicarbonamide) foaming agent with urea method and use method of device |
| CN106698561B (en) * | 2016-12-29 | 2019-05-21 | 哈尔滨工程大学 | A kind of urea method preparation ADC foaming agent biruea condensation sewage-treatment plant and its application method |
| CN106730942A (en) * | 2016-12-30 | 2017-05-31 | 浩蓝环保股份有限公司 | A kind of salt organic waste water low-temperature evaporation crystallization apparatus high |
| US10815132B2 (en) | 2017-04-21 | 2020-10-27 | China Petroleum & Chemical Corporation | Apparatus and method for treating waste water containing ammonium salts |
| US11572289B2 (en) | 2017-04-21 | 2023-02-07 | China Petroleum & Chemical Corporation | Apparatus and method for treating waste water containing ammonium salts |
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Legal Events
| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee |
Owner name: SHANGHAI CN TECHNOLOGY CO., LTD. Free format text: FORMER NAME: XIEN CHEMICAL EQUIPMENT CO., LTD., SHANGHAI |
|
| CP01 | Change in the name or title of a patent holder |
Address after: 201501 Shanghai city Jinshan District Fengjing Industrial Park No. 165 east two ring road Patentee after: Shanghai Xien Technology Co.,Ltd. Address before: 201501 Shanghai city Jinshan District Fengjing Industrial Park No. 165 east two ring road Patentee before: Xien Chemical Equipment Co., Ltd., Shanghai |
|
| C56 | Change in the name or address of the patentee |
Owner name: SHANGHAI XI'EN TECHNOLOGY CO., LTD. Free format text: FORMER NAME: SHANGHAI CN TECHNOLOGY CO., LTD. |
|
| CP01 | Change in the name or title of a patent holder |
Address after: 201501 Shanghai city Jinshan District Fengjing Industrial Park No. 165 east two ring road Patentee after: Shanghai Sean Polytron Technologies Inc Address before: 201501 Shanghai city Jinshan District Fengjing Industrial Park No. 165 east two ring road Patentee before: Shanghai Xien Technology Co.,Ltd. |
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| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20110323 |