CN204779210U - Rubbish flying dust washing liquid evaporation desalination system - Google Patents
Rubbish flying dust washing liquid evaporation desalination system Download PDFInfo
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- CN204779210U CN204779210U CN201520539516.3U CN201520539516U CN204779210U CN 204779210 U CN204779210 U CN 204779210U CN 201520539516 U CN201520539516 U CN 201520539516U CN 204779210 U CN204779210 U CN 204779210U
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Abstract
The utility model discloses a rubbish flying dust washing liquid evaporation desalination system, including pre -heater, falling film evaporation ware, falling liquid film separator, forced circulation separator, forced circulation evaporimeter, stiff ware, centrifugal separator, mother liquor tank, compressor system and condensation water pitcher, this system is divided into two relatively independent units with evaporative concentration with the evaporation crystallization, utilizes MVR evaporation technique, evaporates rubbish flying dust washing liquid and concentrated, follow -up stiff ware and the centrifugal separator of setting up of this system in addition subsides concentrated and centrifugal separator after -separating through the stiff ware, and the salt that the rubbish flying dust was washed in the liquid can finally separate. Above -mentioned system has adapted to rubbish flying dust washing liquid composition and complicated and contain the high characteristics of salinity, and it is big to have an evaporative capacity, the stable and smooth and easy characteristics of desalination of operation to guaranteed that rubbish flying dust washing liquid obtains the stable processing of scale.
Description
Technical field
The utility model relates to a kind of garbage flying ash water lotion evaporative desalination system.
Background technology
Garbage flying ash refers to the resistates obtained in the collection of garbage incinerating power plant flue gas purification system, containing soluble heavy metals such as the organic pollutant such as Dioxins, furans and Pb, Cr, large to environmental and human health impacts harm, must carry out safe and effective disposal.According to garbage flying ash ingredient properties, as a kind of method that raw material sintering cement is effective disposal garbage flying ash, but in garbage flying ash, chloride ion content is high, directly can produce skinning and blocking as cement raw material, affect the normal operation of cement kiln, therefore need to carry out pre-treatment to garbage flying ash.
Many research and test show, washing is a kind of effective pretreatment process, garbage flying ash is after water-washing pre-treatment, chloride ion content significantly reduces, meet and be applicable to follow-up cement kiln and dispose, but the garbage flying ash water lotion that washing produces needs to carry out evaporative desalination disposal because of the villaumite containing higher concentration.The patent No. is that the Chinese invention patent " a kind of system and method extracting k-na salt from incineration of refuse flyash " of ZL201110031075.2 discloses and a kind of from garbage flying ash water lotion, extracts k-na salt unit, it mainly comprises preheater, vaporizer, flash evaporation crystallizer and steam mechanical compressor etc., this unit is actually very simple MVR (mechanical steam recompression) system of one, although compare traditional evaporation mode there is the obvious feature of energy-saving effect, but because the salt contained in garbage flying ash water lotion comprises sodium-chlor, Repone K, sodium carbonate, calcium chloride etc., complicated component, and salt concentration is high, said units is occurred in actual motion, and steam capability is low, poor stability and go out the problems such as salt is not smooth, therefore need to carry out the improvement of innovation formula to this unit.
Utility model content
In order to solve problems of the prior art; the object of this invention is to provide a kind of garbage flying ash water lotion evaporative desalination system; this system adapts to garbage flying ash water lotion complicated component and the high feature of salt concentration, ensures that garbage flying ash water lotion obtains that mass-producing is stable to be disposed.
To achieve these goals, the present invention adopts following technical scheme:
A kind of garbage flying ash water lotion evaporative desalination system, comprise preheater, falling-film evaporator, falling film separator, pump circulation separator, pump feed evaporator, thickener, whizzer, mother liquor tank, compressor assembly and condensate water pot, wherein, be provided with fresh feed pump before the import of preheater refrigerant, preheater refrigerant exit is connected with falling-film evaporator opening for feed; Falling-film evaporator discharge port is connected with falling film separator import; Falling film separator is provided with two liquid exits, and one liquid exit is connected with falling-film evaporator opening for feed by recycle pump, and another liquid exit is connected with pump circulation separator one liquid-inlet by transfering material pump; Pump circulation separator is provided with three liquid-inlets and two liquid exits, one of them liquid-inlet is connected with pump feed evaporator discharge port, one of them liquid exit is connected with pump feed evaporator opening for feed by forced circulation pump, another liquid exit is connected with thickener import by discharging pump, and second liquid-inlet is exported with mother liquor tank by mother liquor pump and be connected; Thickener overflow port is connected with mother liquor tank one import, and thickener feed opening is connected with whizzer opening for feed; Another import of whizzer mother liquor outlet and mother liquor tank is connected; Falling film separator exports with pump circulation separator vapor and is connected with compressor assembly steam inlet after ducts converge; Compressor assembly vapour outlet is connected with pump feed evaporator steam inlet; Pump feed evaporator vapour outlet is connected with falling-film evaporator steam inlet, and pump feed evaporator condensation-water drain is connected with condensate water pot one import, and another import of falling-film evaporator condensation-water drain and condensate water pot is connected; Condensate water pot outlet is connected with preheater Heating medium by condensate pump.
Described preheater is plate-type heat exchanger.
Described falling-film evaporator top is provided with cloth liquid dish.
Described whizzer is two-stage piston push centrifuge or horizontal screw centrifuge.
Described pump circulation separator is normal circulation tangential admission vaporizer.
The utility model is in order to adapt to garbage flying ash water lotion complicated component and salt concentration high feature, and evaporation concentration and evaporative crystallization are divided into the unit that two relatively independent, utilize MVR evaporation technique, heat energy is provided by compressor assembly and maintains balance; Evaporation concentration unit mainly comprises preheater, falling-film evaporator and falling film separator, and by the preheating of garbage flying ash water lotion, repeatedly evaporate, material obtains the concentrated but state that do not reach capacity; Evaporative crystallization unit mainly comprises pump circulation separator, pump feed evaporator, and evaporation concentration material is after this element evaporates further, and material reaches saturated or hypersaturated state, and crystal salt starts to separate out; The utility model is follow-up arranges thickener and whizzer, first will containing the further sedimentation concentration of crystal salt material, and after reaching centrifugation requirement, after being effectively separated by whizzer, crystal salt is finally discharged to outside system.
The beneficial effects of the utility model are: (1) adopts falling-film evaporator and pump feed evaporator to carry out evaporation concentration to material, has adapted to garbage flying ash water lotion material property, and has had energy-saving effect more outstanding feature; (2) garbage flying ash water lotion is through preheating, evaporation and degree of depth evaporation step, and steam capability is large, and system cloud gray model is highly stable; (3) adopt thickener with whizzer, crystal salt to be obtained to be separated, separation efficiency is high and to go out salt smooth and easy; (4) have good adaptability to the garbage flying ash water lotion salt concentration large feature that fluctuates, salt concentration subject range can be 0-10%; (5) the utility model strong innovation, has good flexibility of operation, equipment work elasticity and permanent stability.
Accompanying drawing explanation
Fig. 1 is garbage flying ash water lotion evaporative desalination system process block diagram.
In figure: 1-preheater; 2-falling-film evaporator; 3-falling film separator; 4-pump circulation separator; 5-pump feed evaporator; 6-thickener; 7-whizzer; 8-mother liquor tank; 9-compressor assembly; 10-condensate water pot.
Embodiment
Below in conjunction with accompanying drawing, the utility model is elaborated.
A kind of garbage flying ash water lotion evaporative desalination system, comprises preheater 1, falling-film evaporator 2, falling film separator 3, pump circulation separator 4, pump feed evaporator 5, thickener 6, whizzer 7, mother liquor tank 8, compressor assembly 9 and condensate water pot 10.
In said system, before the import of preheater 1 refrigerant, fresh feed pump is installed, by fresh feed pump, the garbage flying ash water lotion after the process such as deliming is squeezed into and water of condensation heat exchange, preheater 1 refrigerant exit is connected with falling-film evaporator 2 opening for feed, falling-film evaporator 2 top is provided with cloth liquid dish, by the dissemination of cloth liquid dish, garbage flying ash water lotion evenly enters in the tube side tubulation of falling-film evaporator 2, with the shell side steam heat-exchanging of falling-film evaporator 2 in slowly flowing down from top to down, reach boiling point and define evaporating state.
Falling-film evaporator 2 discharge port is connected with falling film separator 3 import, after falling-film evaporator 2 evaporates, material enters falling film separator 3 and carries out gas-liquid separation, falling film separator 3 is provided with two liquid exits, one liquid exit is connected with falling-film evaporator 2 opening for feed by recycle pump, material is repeatedly evaporated in falling-film evaporator 2, another liquid exit is connected with pump circulation separator 4 one liquid-inlet by transfering material pump, thus makes the high concentrated liquid after gas-liquid separation turn to crystalline element.
Pump circulation separator 4 is provided with three liquid-inlets and two liquid exits, one of them liquid-inlet is connected with pump feed evaporator 5 discharge port, one of them liquid exit is connected with pump feed evaporator 5 opening for feed by forced circulation pump, another liquid exit is connected with thickener 6 import by discharging pump, and second liquid-inlet is exported with mother liquor tank 8 by mother liquor pump and be connected; Pump circulation separator 4 is the very important equipment of crystalline element, and garbage flying ash water lotion concentrated solution, by evaporating further in pump feed evaporator 5, reaches capacity or supersaturation at pump circulation separator 4, thus crystal salt is separated out.
Thickener 6 overflow port is connected with mother liquor tank 8 one import, and thickener 6 feed opening is connected with whizzer 7 opening for feed; Whizzer 7 mother liquor outlet is connected with another import of mother liquor tank 8; Material containing crystal salt is after thickener 6 sedimentation, thickener 6 supernatant liquor enters mother liquor tank 8, after bottom dope volume solid-to-liquid ratio reaches 30%, enter into two-stage piston push centrifuge or horizontal screw centrifuge carries out solid-liquid separation, thus obtain crystal salt, and centrifugation mother liquor enters mother liquor tank 8 is back to pump circulation separator 4 again evaporates together with thickener 6 supernatant liquor.
Falling film separator 3 is connected with compressor assembly 9 steam inlet after ducts converge with pump circulation separator 4 vapour outlet, and to be pressurizeed temperature raising effect by compressor assembly 9, vapor temperature is raised, and meets evaporation and heat-exchange requirement; Compressor assembly 9 vapour outlet is connected with pump feed evaporator 5 steam inlet; Pump feed evaporator 5 vapour outlet is connected with falling-film evaporator 2 steam inlet, pump feed evaporator 5 condensation-water drain is connected with condensate water pot 10 1 import, falling-film evaporator 2 condensation-water drain is connected with another import of condensate water pot 10, and the high-temperature condensation water namely after pump feed evaporator 5 and falling-film evaporator 2 heat exchange all enters condensate water pot 10; Condensate water pot 10 is exported and is connected with preheater 1 Heating medium by condensate pump, and by preheater 1 heat exchange, condensate temperature is down to about 40 DEG C.
Described preheater 1 is plate-type heat exchanger, has the advantages that heat transfer rate is fast, heat exchange efficiency is high.
Described pump circulation separator 4 is normal circulation tangential admission vaporizer, and being conducive to crystal salt separates out and increase, and meets follow-up centrifugal desalination requirement.
Claims (5)
1. a garbage flying ash water lotion evaporative desalination system, it is characterized in that: this system comprises preheater, falling-film evaporator, falling film separator, pump circulation separator, pump feed evaporator, thickener, whizzer, mother liquor tank, compressor assembly and condensate water pot, wherein, be provided with fresh feed pump before the import of preheater refrigerant, preheater refrigerant exit is connected with falling-film evaporator opening for feed; Falling-film evaporator discharge port is connected with falling film separator import; Falling film separator is provided with two liquid exits, and one liquid exit is connected with falling-film evaporator opening for feed by recycle pump, and another liquid exit is connected with pump circulation separator one liquid-inlet by transfering material pump; Pump circulation separator is provided with three liquid-inlets and two liquid exits, one of them liquid-inlet is connected with pump feed evaporator discharge port, one of them liquid exit is connected with pump feed evaporator opening for feed by forced circulation pump, another liquid exit is connected with thickener import by discharging pump, and second liquid-inlet is exported with mother liquor tank by mother liquor pump and be connected; Thickener overflow port is connected with mother liquor tank one import, and thickener feed opening is connected with whizzer opening for feed; Another import of whizzer mother liquor outlet and mother liquor tank is connected; Falling film separator exports with pump circulation separator vapor and is connected with compressor assembly steam inlet after ducts converge; Compressor assembly vapour outlet is connected with pump feed evaporator steam inlet; Pump feed evaporator vapour outlet is connected with falling-film evaporator steam inlet, and pump feed evaporator condensation-water drain is connected with condensate water pot one import, and another import of falling-film evaporator condensation-water drain and condensate water pot is connected; Condensate water pot outlet is connected with preheater Heating medium by condensate pump.
2. a kind of garbage flying ash water lotion evaporative desalination system according to claim 1, is characterized in that: described preheater is plate-type heat exchanger.
3. a kind of garbage flying ash water lotion evaporative desalination system according to claim 1, is characterized in that: described falling-film evaporator top is provided with cloth liquid dish.
4. a kind of garbage flying ash water lotion evaporative desalination system according to claim 1, is characterized in that: described whizzer is two-stage piston push centrifuge or horizontal screw centrifuge.
5. a kind of garbage flying ash water lotion evaporative desalination system according to claim 1 or 2 or 3 or 4, is characterized in that: described pump circulation separator is normal circulation tangential admission vaporizer.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201520539516.3U CN204779210U (en) | 2015-07-18 | 2015-07-18 | Rubbish flying dust washing liquid evaporation desalination system |
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Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105016555A (en) * | 2015-07-18 | 2015-11-04 | 北京建筑材料科学研究总院有限公司 | Garbage fly ash water washing liquid evaporation desalination system and method |
| CN105541028A (en) * | 2016-01-11 | 2016-05-04 | 姜贵清 | Treatment process for plant cutting fluid wastewater |
| CN105923673A (en) * | 2016-05-23 | 2016-09-07 | 江苏瑞升华能源科技有限公司 | Adipic acid waste water evaporation and concentration process and device thereof |
| CN108191135A (en) * | 2018-01-31 | 2018-06-22 | 北京中科国润环保科技有限公司 | A kind of incineration of refuse flyash or kiln ash water lotion evaporation salt making system and method |
| CN108483780A (en) * | 2018-04-28 | 2018-09-04 | 青海爱迪旺环保科技有限公司 | A kind of preprocess method of uns-dimethylhydrazine industrial production wastewater |
| CN111362492A (en) * | 2018-12-26 | 2020-07-03 | 广州市迈源科技有限公司 | Double-effect MVR evaporation treatment method |
| CN112110517A (en) * | 2020-09-21 | 2020-12-22 | 北京今大禹环境技术股份有限公司 | Method for separating crystalline salt from high organic matter crystalline salt solution |
| CN112363422A (en) * | 2020-10-09 | 2021-02-12 | 昆山三一环保科技有限公司 | Intelligent control system |
| CN114230070A (en) * | 2021-11-21 | 2022-03-25 | 江苏卓博环保科技有限公司 | Incineration fly ash washing water recycling treatment device and method |
| CN114712874A (en) * | 2022-02-25 | 2022-07-08 | 武汉凯迪水务有限公司 | MVR strong brine slurry crystallization salt separation system |
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2015
- 2015-07-18 CN CN201520539516.3U patent/CN204779210U/en active Active
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105016555A (en) * | 2015-07-18 | 2015-11-04 | 北京建筑材料科学研究总院有限公司 | Garbage fly ash water washing liquid evaporation desalination system and method |
| CN105541028A (en) * | 2016-01-11 | 2016-05-04 | 姜贵清 | Treatment process for plant cutting fluid wastewater |
| CN105923673A (en) * | 2016-05-23 | 2016-09-07 | 江苏瑞升华能源科技有限公司 | Adipic acid waste water evaporation and concentration process and device thereof |
| CN108191135A (en) * | 2018-01-31 | 2018-06-22 | 北京中科国润环保科技有限公司 | A kind of incineration of refuse flyash or kiln ash water lotion evaporation salt making system and method |
| CN108483780A (en) * | 2018-04-28 | 2018-09-04 | 青海爱迪旺环保科技有限公司 | A kind of preprocess method of uns-dimethylhydrazine industrial production wastewater |
| CN111362492A (en) * | 2018-12-26 | 2020-07-03 | 广州市迈源科技有限公司 | Double-effect MVR evaporation treatment method |
| CN112110517A (en) * | 2020-09-21 | 2020-12-22 | 北京今大禹环境技术股份有限公司 | Method for separating crystalline salt from high organic matter crystalline salt solution |
| CN112363422A (en) * | 2020-10-09 | 2021-02-12 | 昆山三一环保科技有限公司 | Intelligent control system |
| CN114230070A (en) * | 2021-11-21 | 2022-03-25 | 江苏卓博环保科技有限公司 | Incineration fly ash washing water recycling treatment device and method |
| CN114712874A (en) * | 2022-02-25 | 2022-07-08 | 武汉凯迪水务有限公司 | MVR strong brine slurry crystallization salt separation system |
| CN114712874B (en) * | 2022-02-25 | 2024-05-24 | 武汉凯迪水务有限公司 | MVR concentrated salt slurry crystallization salt separating system |
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