CN205023891U - Crystallizing evaporator - Google Patents
Crystallizing evaporator Download PDFInfo
- Publication number
- CN205023891U CN205023891U CN201520768415.3U CN201520768415U CN205023891U CN 205023891 U CN205023891 U CN 205023891U CN 201520768415 U CN201520768415 U CN 201520768415U CN 205023891 U CN205023891 U CN 205023891U
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- salt
- evaporator room
- forced circulation
- circulation tube
- outlet
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- Vaporization, Distillation, Condensation, Sublimation, And Cold Traps (AREA)
- Heat Treatment Of Water, Waste Water Or Sewage (AREA)
Abstract
Crystallizing evaporator, including an evaporating chamber, a heat exchanger, a forced circulation pump, a circulation pipe clamp cover, a salt leg, evaporating chamber internally mounted has a demister, has spray set around the demister, and the center is the horn mouth, and the horn mouth is below the liquid level, the forced circulation pump adopts the ejecting mode of inclining to pass through the circulating pipe and the heat exchanger links to each other, the circulating pipe horizontal segment is equipped with the feed liquid import, and the circulating pipe vertical section is equipped with and presss from both sides the cover interface. The utility model discloses a forced circulation heat transfer, reduced contain in the conventional technology salt waste water in the heat exchanger easy block up with the probability of scale deposit, adopt built -in demister and spray set simultaneously, flash steam liquid foam is smugglied secretly fewly, the multiple useless water concentration operating mode of salt that contains of this jar of type adaptation, specially adapted MVR process units can realize continuous production, equipment cycle of operation is long, stable being convenient for of operation is controlled.
Description
Technical field
The utility model belongs to sewage treatment equipment, particularly relates to the evaporative crystallizer for industry process waste water such as pulping and paper-making, Coal Chemical Industry, desulfurization wastewaters.
Background technology
In the brine waste treatment process in the fields such as pulping and paper-making, Coal Chemical Industry, desulfurization wastewater, most of water can be reclaimed by techniques such as pre-treatment, ultrafiltration+reverse osmosis, nanofiltration, electrodialysis, but inevitably produce a part of high-concentration salt-containing wastewater.Containing the inorganic salt such as a large amount of sodium-chlor and sodium sulfate in these high dense brine wastes, if do not processed directly outer row, not only can cause the significant wastage of resource, also can cause the pollution of local environment.The brine waste evaporation treatment process of current routine, the vaporizer of employing has plate-type evaporator, falling-film evaporator, climbing-film evaporator.This type of vaporizer applicable elements is harsher, is all not too applicable to the operating mode easily producing crystallization, easy occluding device, and cause brush tank frequent, the production cycle shortens, and before impact, operation is produced.
Utility model content
The purpose of this utility model is to provide a kind of evaporative crystallizer, is applicable to the brine waste evaporation process under multiple concentration, mixture condition, can solve equipment, the blocking of heat transfer tube, fouling and the frequent brush tank, the cleaning problem that cause.
The technical scheme of utility model:
Evaporative crystallizer, comprise evaporator room, heating chamber, forced circulation pump, circulation tube, salt leg, evaporator room top cone section is provided with venting port, observation visor, scum dredger, spray equipment, secondary steam outlet, evaporator room top is provided with venting port, evaporation chamber is provided with hydraucone, and hydraucone is below liquid level; The top of heating chamber is provided with steam inlet, and bottom is provided with condensation-water drain, and upper and lower two ends are provided with non-condensable gas outlet; The mode that forced circulation pump adopts side to enter to eject is connected with interchanger by circulation tube; Circulation tube vertical section is provided with chuck, and chuck arranges mother liquor outlet, and circulation tube horizontal section is provided with brine waste import, discharging hole, thief hole; Salt leg is connected with bottom evaporator room, is provided with the outlet of salt slurry, evacuation port, elutriation mouth, observes visor below salt leg.
The utility model has following beneficial effect: compared with traditional same category of device, and this evaporative crystallizer is forced circulation evaporation crystallizer.Be the pump circulation heat exchange of large discharge due to what adopt, decrease that brine waste in Conventional vaporizer easily blocks in interchanger, the probability of fouling; Adopt in chuck and discharge the foreign ion balance that a small amount of mother liquor can ensure evaporative crystallizer system, the long-term stability maintaining system is run; Salt leg adopts the mode eluriated simultaneously, maintains disturbance bottom salt leg, ensures the continuous discharge of slurry, can realize continuous seepage, and the equipment cycle of operation extends, and stable operation is convenient to control.
Accompanying drawing explanation
Fig. 1 is utility model structural representation.
In figure: 1-evaporator room, 2-heating chamber, 3-forced circulation pump, 4-circulation tube, 5-salt leg, 6-venting port, 7-observes visor, 8-scum dredger, 9-spray equipment, 10-secondary steam exports, 11-hydraucone, 12-steam inlet, 13-condensation-water drain, 14-non-condensable gas exports, 15-mother liquor outlet, the import of 16-brine waste, 17-discharging hole, 18-thief hole, the outlet of 19-salt slurry, 20-evacuation port, 21-eluriates mouth, and 22-observes visor, 23-chuck.
Embodiment
Below in conjunction with accompanying drawing embodiment, the utility model is further elaborated.
As shown in Figure 1, evaporative crystallizer comprises evaporator room 1, heating chamber 2, forced circulation pump 3, circulation tube 4, salt leg 5, evaporator room top cone section is provided with venting port 6, observation visor 7, scum dredger 8, spray equipment 9, secondary steam outlet 10, evaporator room 1 top is provided with venting port 6, and evaporator room 1 inside is provided with hydraucone 11, and hydraucone 11 is below liquid level; The top of heating chamber is provided with steam inlet 12, and bottom is provided with condensation-water drain 13, and upper and lower two ends are provided with non-condensable gas outlet 14; The mode that forced circulation pump 3 adopts side to enter to eject is connected with interchanger by circulation tube; Circulation tube 4 vertical section is provided with chuck 23, chuck is arranged mother liquor outlet 15, and circulation tube 4 horizontal section is provided with brine waste import 16, discharging hole 17, thief hole 18; Salt leg 5 is connected with bottom evaporator room 1, is provided with the outlet 19 of salt slurry, evacuation port 20, eluriates mouth 21, observes visor 22 below salt leg 5.
The utility model is applied in the evaporative crystallization technique of brine waste, specific operation process is as follows: by brine waste by entering circulation tube 4 entrance of evaporative crystallizer after preheater preheats, contact with a large amount of high temperature circulation feed liquid in circulation tube 4, under the drive of forced circulation pump, enter heating chamber 2 together carry out heat exchange, control the internal-external temperature difference of heat transfer tube and the internal circulating load of feed liquid, the plugging phenomenon in circulation feed liquid heat transfer process can be avoided to occur.Feed liquid after heat exchange is by circulation tube 4 hydraucone 11 in crystallisation chamber evaporation concentration, and the secondary steam evaporated enters vapour compressor, and the superheated vapour of the high enthalpy of compressed formation, delivers to heating chamber after spray desuperheating to saturation steam and recycle.Crystallize out after feed liquid reaches capacity in evaporator room, macrobead solid falls into salt leg 5 in settling process, head into raw material brine waste at salt leg 5, ensure that salt slurry is expelled to solid-liquid separation process smoothly from salt leg 5, a small amount of concentrated mother liquor is discharged by chuck mother liquor outlet simultaneously.
Claims (1)
1. evaporative crystallizer, it is characterized in that: comprise evaporator room (1), heating chamber (2), forced circulation pump (3), circulation tube (4), salt leg (5), evaporator room top cone section is provided with venting port (6), observation visor (7), scum dredger (8), spray equipment (9), secondary steam outlet (10), evaporator room (1) top is provided with venting port (6), evaporator room (1) inside is provided with hydraucone (11), and hydraucone (11) is below liquid level; The top of heating chamber is provided with steam inlet (12), and bottom is provided with condensation-water drain (13), and upper and lower two ends are provided with non-condensable gas outlet (14); The mode that forced circulation pump (3) adopts side to enter to eject is connected with interchanger by circulation tube; Circulation tube (4) vertical section is provided with chuck (23), chuck is arranged mother liquor outlet (15), circulation tube (4) horizontal section is provided with brine waste import (16), discharging hole (17), thief hole (18); Salt leg (5) is connected with evaporator room (1) bottom, and salt leg (5) below is provided with the outlet of salt slurry (19), evacuation port (20), eluriates mouth (21), observes visor (22).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520768415.3U CN205023891U (en) | 2015-10-07 | 2015-10-07 | Crystallizing evaporator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520768415.3U CN205023891U (en) | 2015-10-07 | 2015-10-07 | Crystallizing evaporator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205023891U true CN205023891U (en) | 2016-02-10 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520768415.3U Active CN205023891U (en) | 2015-10-07 | 2015-10-07 | Crystallizing evaporator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205023891U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105854322A (en) * | 2016-05-13 | 2016-08-17 | 中盐金坛盐化有限责任公司 | Evaporating equipment for preparing refined industrial salt |
| CN113277580A (en) * | 2020-02-20 | 2021-08-20 | 自然资源部天津海水淡化与综合利用研究所 | High calcium magnesium waste water evaporation system |
-
2015
- 2015-10-07 CN CN201520768415.3U patent/CN205023891U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105854322A (en) * | 2016-05-13 | 2016-08-17 | 中盐金坛盐化有限责任公司 | Evaporating equipment for preparing refined industrial salt |
| CN113277580A (en) * | 2020-02-20 | 2021-08-20 | 自然资源部天津海水淡化与综合利用研究所 | High calcium magnesium waste water evaporation system |
| CN113277580B (en) * | 2020-02-20 | 2022-09-09 | 自然资源部天津海水淡化与综合利用研究所 | High calcium magnesium waste water evaporation system |
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| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |