CN202876423U - Acid bath flash evaporation and crystallization device - Google Patents
Acid bath flash evaporation and crystallization device Download PDFInfo
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- CN202876423U CN202876423U CN201220428889.XU CN201220428889U CN202876423U CN 202876423 U CN202876423 U CN 202876423U CN 201220428889 U CN201220428889 U CN 201220428889U CN 202876423 U CN202876423 U CN 202876423U
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- acid
- crystallizer
- inlet
- flash evaporation
- acid bath
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Abstract
The utility model discloses an acid bath flash evaporation and crystallization device. The acid bath flash evaporation and crystallization device comprises an acid outlet a, an acid inlet b and a secondary steam outlet c. The acid bath flash evaporation and crystallization device is characterized in that the acid inlet b is a tangential acid inlet, i.e., the central line of the acid inlet b is tangent to a concentric circle of a wall surface of a crystallizer, and the tangential acid inlet is provided with a lining pipe which enables inlet acid to flow forwards and downwards. The acid bath flash evaporation and crystallization device disclosed by the utility model has the advantages that acid bath in the crystallizer is impacted by using the flow velocity of excessive-effect acid bath through the tangential acid inlet designed in the tangent direction to rotate so that the acid bath in contact with the wall surface of the crystallizer is at a motion state, scale formation on the wall surface of the crystallizer is effectively avoided, simultaneously the best proportion of new acid entering a flash evaporation device is controlled to be 1.36-1.42, crystallization time can be prolonged, crystalline particles are enlarged, and the yield of anhydrous sodium sulphate is increased. The acid bath flash evaporation and crystallization device enables an anhydrous sodium sulphate flash evaporation technology to be mature and perfect and is suitable for popularization at home and abroad.
Description
Technical field
The utility model relates to a kind of viscose fiber apparatus field, the important improvement of chemical fibre factory's acid bath flash crystallization glauber salt device.
Background technology
The acid bath flash evaporation device of chemical fibre factory, conventional art all are enrichment facilities, and the acid bath after concentrating through the crystallisation by cooling mirabilite hydrate, is glauber salt (being anhydrous nitre) with the saltcake roasting again.The ZL201020187924.4 patented technology with acid bath flash concentration device reform into can the direct crystallization glauber salt the flash crystallization device, this device is comprised of four systemses such as heat exchanger system, crystallizer system, condenser vacuum system, circulating pump systems.After the operation, produced great economic benefit.But it is thinner to have aborning crystalline particle, and output is lower than theoretical value, and crystallizer is with serious problems such as " knot walls ".Produce after several hours, the crystallizer wall just hangs with 5 centimeters to 8 centimeters thick crystals, has a strong impact on flash crystallization and normally moves." knot wall " problem, general crystallizer are all used and are set up mixer and solve, but flash evaporation crystallizer cannot because every cover flash distillation plant has the crystallizer more than 8 ~ 11, if add mixer, will increase more than 8 ~ 11.And flash evaporation crystallizer all is vacuum crystallization, and the sealing of mixer slightly has gas leakage, namely can destroy vacuum, and impact is normally produced.So it is a worthless way that the increase mixer avoids tying wall.Therefore it is very necessary to develop a kind of novel acid bath flash evaporation crystallizer.
Summary of the invention
The utility model is thin for crystallizer knot wall problem and crystalline particle, the low problem of output, has developed a kind of acid bath flash crystallization device.The technological means that adopts is as follows:
A kind of acid bath flash crystallization device comprises acid mouth a, acid inlet b and indirect steam outlet c; It is characterized in that described acid inlet b is tangential acid inlet, namely the concentric circles of the center line of acid inlet b and crystallizer wall is tangent, and described tangential acid inlet is provided with the internal lining pipe that puts in crystallizer, makes into acid to flow downward forward.Described tangential acid inlet is arranged on below the liquid level of crystallizer; utilized the flow velocity of imitating acid bath to impact the interior acid bath of crystallizer; make it to cause rotation; make the acid bath of contact crystallizer wall be motion state; effectively avoided the generation of crystallizer wall face knot wall; the effect of tangential acid inlet internal lining pipe is to slow down upwards eruption of indirect steam, and protection crystallizer housing is avoided wearing and tearing.
Crystallization apparatus described in the utility model also can be realized better effect by another technological means: the eo-acid specific gravity control that the eo-acid import d from the mixed flash boiling chamber is entered is between 1.36-1.42, make the crystallizer item of beginning crystallization in advance, can prolong crystallization time, increase crystalline particle, improve glauber salt output.
In sum, the acid inlet that enters flash evaporation crystallizer is changed into tangential entry, control enters the proportion of mixed flash boiling chamber eo-acid, to avoid the fouling of flash evaporation crystallizer wall, glauber salt increases crystalline particle, improves the key technology of output, and the utility model makes flash crystallization glauber salt technology reach ripe, perfect degree.
Description of drawings
Fig. 1 is the crystallizer system figure of the described flash crystallization glauber salt of utility model device;
Fig. 2 is the tangential acid inlet link position of crystallizer front view;
Fig. 3 is the tangential acid inlet link position of crystallizer top view;
Fig. 4 is tangential acid inlet internal lining pipe structure chart (being Fig. 2 I section enlarged drawing).
The specific embodiment
As Fig. 2, shown in Figure 3 (be acid mouth and link position front view and the top view of tangential acid inlet, a is the acid mouth of crystallizer, b is the acid inlet (being tangential acid inlet) of crystallizer, and all crystallizer acid mouth a are tangential acid inlet with the acid inlet b(of next crystallizer directly all) be connected.) a kind of acid bath flash crystallization device, comprise acid mouth a, acid inlet b and indirect steam the outlet c; Described acid inlet b is tangential acid inlet, and namely the concentric circles of the center line of acid inlet b and crystallizer wall is tangent; Described tangential acid inlet is provided with the internal lining pipe (as shown in Figure 4) that puts in crystallizer, makes into acid to flow downward forward, and described tangential acid inlet is arranged on below the liquid level of crystallizer.Its principle is: below the liquid level of each crystallizer, be designed with tangential acid inlet, make the acid bath after the previous crystallizer flash distillation, tangentially enter next crystallizer.Pressure reduction between the crystallizer flows acid bath and has larger flow velocity, tangentially enters crystallizer, impacts the acid bath in the crystallizer, makes it to cause the acid bath rotation in the crystallizer, plays stirring action.Originally knot is stirred at a large amount of glauber salt of wall and is dispersed in the crystallizer, contact with oversaturated acid bath, makes the particle growth.The utility model is the eo-acid import d from the mixed flash boiling chamber simultaneously, and the eo-acid specific gravity control that enters is the scope of 1.36-1.42, makes the crystallizer item of beginning crystallization in advance, prolongs the crystallization time of particle in crystallization apparatus, can increase particle, improves output.
Application example of above-mentioned acid bath flash crystallization device as shown in Figure 1: wherein V3 ~ V10 is crystallizer, and V11 is the mixed flash boiling chamber, and ZC is thickener; A is that acid mouth, b are that acid inlet, c are that indirect steam outlet, d are that eo-acid import, e are that crystalline mother solution overfall, g are the plasma discharge mouth for suction acid mouth, f;
From the crystalline mother solution suction inlet e of mixed flash boiling chamber V11, suck crystalline mother solution, with the eo-acid mixed flash boiling that enters from eo-acid import d, send into heat exchanger system by circulating pump system again, through preheating and heating, enter the crystallizer system flash crystallization.The crystallization suspension of discharging from final stage crystallizer V10 after the crystallization, enter thickener ZC sedimentation thickening, slurry after the thickening is sent to separation, washing, drying and is obtained the glauber salt product, and the mother liquor of clarification is at first supplied with mixed flash boiling chamber V11 and sucked the circulation flash distillation, and all the other overflows enter the concentrated acid storage tank.
The above; it only is the better specific embodiment of the utility model; but protection domain of the present utility model is not limited to this; anyly be familiar with those skilled in the art in the technical scope of the utility model prompting; be equal to replacement or change according to the technical solution of the utility model and inventive concept thereof, all should be encompassed within the protection domain of the present utility model.
Claims (2)
1. an acid bath flash crystallization device comprises acid mouth (a), acid inlet (b) and indirect steam outlet (c); It is characterized in that described acid inlet (b) is tangential acid inlet, namely the concentric circles of the center line of acid inlet (b) and crystallizer wall is tangent; Described tangential acid inlet is provided with and makes the internal lining pipe that flows downward forward into acid.
2. a kind of acid bath flash crystallization device according to claim 1 is characterized in that described tangential acid inlet is arranged on below the liquid level of crystallizer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201220428889.XU CN202876423U (en) | 2012-08-27 | 2012-08-27 | Acid bath flash evaporation and crystallization device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201220428889.XU CN202876423U (en) | 2012-08-27 | 2012-08-27 | Acid bath flash evaporation and crystallization device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202876423U true CN202876423U (en) | 2013-04-17 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
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| CN201220428889.XU Expired - Lifetime CN202876423U (en) | 2012-08-27 | 2012-08-27 | Acid bath flash evaporation and crystallization device |
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| CN (1) | CN202876423U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104147807A (en) * | 2013-05-13 | 2014-11-19 | 因温斯特技术公司 | Coarse chemical crystallizer |
| CN109758780A (en) * | 2019-03-26 | 2019-05-17 | 许达人 | Acid bath flash crystallization device and technique |
-
2012
- 2012-08-27 CN CN201220428889.XU patent/CN202876423U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104147807A (en) * | 2013-05-13 | 2014-11-19 | 因温斯特技术公司 | Coarse chemical crystallizer |
| CN104147807B (en) * | 2013-05-13 | 2018-01-02 | 英威达纺织（英国）有限公司 | Thick chemicals crystallizer |
| CN109758780A (en) * | 2019-03-26 | 2019-05-17 | 许达人 | Acid bath flash crystallization device and technique |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20201102 Address after: Room 38-12, Room 501, building 6-2, Yingchun street, Huayuankou Economic Zone, Dalian City, Liaoning Province, 116000 Patentee after: Dalian North South Chemical New Technology Co.,Ltd. Address before: 116018, Liaoning, Dalian, Zhongshan District, Jiefang Road sea school compound No. 697, 2-3-1 Patentee before: Xu Daren |
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| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130417 |