CN206970216U - A kind of wet phosphoric acid extracting bath - Google Patents
A kind of wet phosphoric acid extracting bath Download PDFInfo
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- CN206970216U CN206970216U CN201720683310.7U CN201720683310U CN206970216U CN 206970216 U CN206970216 U CN 206970216U CN 201720683310 U CN201720683310 U CN 201720683310U CN 206970216 U CN206970216 U CN 206970216U
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- reactive tank
- digestive shelf
- tank
- reactive
- phosphoric acid
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Abstract
The utility model discloses a kind of wet phosphoric acid extracting bath, including reactive tank A, reactive tank B, reactive tank C, reactive tank D, reactive tank E, reactive tank F, digestive shelf A, digestive shelf B, digestive shelf C, dodge cooling system, the reactive tank A, reactive tank B, reactive tank C, reactive tank D, reactive tank E, reactive tank F, digestive shelf A, digestive shelf B, digestive shelf C is sequentially communicated, the sudden strain of a muscle cooling system connects with reactive tank A and reactive tank F respectively, the reactive tank B, reactive tank C, reactive tank D top is higher than reactive tank A, reactive tank E, reactive tank F top, the reactive tank B, reactive tank C, two acid-adding ports are respectively provided with the top of reactive tank D.The utility model solves easily to be corroded at the top of existing extraction tank, and the easy buildup of gas phase channel connected entrance blocks, and the reactive tank concentrated sulfuric acid returns to acid with filtering and adds the problems such as uneven, improves the service life and effect of extracting of extraction tank.
Description
Technical field
It the utility model is related to Wet-process Phosphoric Acid Production apparatus field, more particularly to a kind of wet phosphoric acid extracting bath.
Background technology
Phosphoric acid is one of acid commonly used in chemical industrial field, when wet method prepares phosphoric acid, it is necessary to use sulfuric acid decomposition slurry,
The mixed slurry of phosphoric acid and Crystallization of Gypsum is obtained, needs to control SO in decomposable process3Concentration, temperature etc. react bar
Part, to obtain Crystallization of Gypsum that is thick, uniform, being easy to filter and wash.React obtained phosphoric acid and sulfate dihydrate
The mixed slurry of calcium crystallization, solid-liquor separation is carried out using the method for vacuum filter, phosphoric acid,diluted and ardealite is respectively obtained, is decomposing
During also occur side reaction, the gas such as generation carbon dioxide, hydrogen fluoride, ocratation.Reaction is all in phosphoric acid by wet process above
Carried out in extraction tank, extraction tank need to possess control SO3Concentration and the function of collecting pernicious gas.For example, Publication No.
CN205575649U Chinese patent discloses a kind of single-blade multi-groove type phosphoric acid by wet process extraction equipment, and the device is by multiple reactive tanks
Formed with digestive shelf, be equipped with an agitator in each reactive tank, the bottom of reactive tank has pipeline to be connected successively, first
Reactive tank is provided with phosphorus ore slurry inlet, and second, third reactive tank is provided with sulfuric acid import.Reactive tank and disappear in the extraction equipment
Change the highly consistent of groove, in partial reaction groove, sulfuric acid occurs vigorous reaction with slurry and generates carbon dioxide, forms one
Determine thickness froth bed, froth bed contains strong corrosive material, while the extremely strong ocratation of corrosivity is generated during extractive reaction
And hydrogen fluoride gas, due to the foam and reaction that slurry level is nearer apart from reactive tank distance from top, and vigorous reaction process splashes
Ocratation and hydrogen fluoride gas that process is overflowed etc. easily with reactive tank top contact, cause the groove area top structure damaged rotten
Erosion, influences service life of equipment.Meanwhile the impurity that the foam splashed can be carried secretly, easily cause gas phase channel mouth buildup to block, make
The gas of reaction generation can not discharge in time.The cell body only sets sulfuric acid import in second, third reactive tank simultaneously, and sulfuric acid enters
Mouth is less, and when adding the concentrated sulfuric acid, sulfuric acid concentration is difficult to control, and influences effect of extracting.
Utility model content
In order to solve the above technical problems, the utility model provides a kind of wet phosphoric acid extracting bath, can solve extraction tank
The problems such as top is easily corroded, and the easy buildup of gas phase channel connected entrance is blocked, and sulfuric acid concentration is difficult to control.
It is achieved by the following technical programs with new.
A kind of wet phosphoric acid extracting bath provided by the utility model, including reactive tank A, reactive tank B, reactive tank C, reactive tank
D, reactive tank E, reactive tank F, digestive shelf A, digestive shelf B, digestive shelf C, sudden strain of a muscle cooling system, the reactive tank A, reactive tank B, reactive tank
C, reactive tank D, reactive tank E, reactive tank F, digestive shelf A, digestive shelf B, digestive shelf C are sequentially communicated, it is described sudden strain of a muscle cooling system respectively with
Reactive tank A connects with reactive tank F, and the reactive tank B, reactive tank C, reactive tank D top are higher than reactive tank A, reactive tank E, anti-
Answer groove F top, the reactive tank B (2), reactive tank C (3), be respectively provided with two acid-adding ports at the top of reactive tank D (4).
The reactive tank A, reactive tank B, reactive tank C, reactive tank D, reactive tank E, reactive tank F, digestive shelf A, digestive shelf B,
Digestive shelf C arranges into nine grids.
The reactive tank A, reactive tank B, reactive tank C, reactive tank D, reactive tank E, reactive tank F, digestive shelf A, digestive shelf B,
Agitating device is equipped with digestive shelf C.
Carbon brick wearing layer is provided with below the agitating device.
The reactive tank A, reactive tank B, reactive tank C, reactive tank D, reactive tank E, reactive tank F, digestive shelf A, digestive shelf B,
Digestive shelf C is integral reinforced concrete structure, and the inner side of each reactive tank and digestive shelf is provided with rubber slab impervious barrier, and rubber slab is prevented
Infiltration layer is externally provided with carbon brick anticorrosive coat.
Set between the reactive tank A and reactive tank B, between reactive tank B and reactive tank C, between reactive tank C and reactive tank D
There is gas phase channel.
A waste gas outlet is respectively provided with the top of the reactive tank C, reactive tank D.
The beneficial effects of the utility model are：
Compared with prior art, reactive tank B of the present utility model, reactive tank C, reactive tank D top are higher than reactive tank
A, reactive tank E, reactive tank F top, reactive tank B, reactive tank C, reactive tank D are extractive reaction groove area the most violent, are increased
Reactive tank B, reactive tank C, reactive tank D afterwards can prevent the ocratation that the foam that splashes and course of reaction are overflowed during reaction and
Corrosion caused by hydrogen fluoride gas, simultaneous reactions groove B, reactive tank C, the reactive tank D position of gas phase channel are also accordingly improved, can
To prevent gas phase channel connection from being blocked by buildup, ensure the unobstructed of gas phase channel, it is ensured that the pernicious gas for reacting generation can be suitable
Profit is handled after being pooled to reactive tank C, reactive tank D, at the same this using it is new reactive tank B, reactive tank C, reactive tank D top
Portion is respectively equipped with two acid-adding ports, and sulfuric acid and filtering return to acid and be added to after mixing in reactive tank B, reactive tank C, reactive tank D,
Prevent local SO3Excessive concentration, it is easy to extraction environment in control flume.
Brief description of the drawings
Fig. 1 is structural representation of the present utility model；
In figure：1- reactive tanks A, 2- reactive tank B, 3- reactive tank C, 4- reactive tank D, 5- reactive tank E, 6- reactive tank F, 7- disappear
Change groove A, 8- digestive shelf B, 9- digestive shelf C, 10- and dodge cooling system.
Embodiment
Be described further below the technical solution of the utility model, but claimed scope be not limited to it is described.
As shown in figure 1, a kind of wet phosphoric acid extracting bath described in the utility model, including it is reactive tank A1, reactive tank B2, anti-
Groove C3, reactive tank D4, reactive tank E5, reactive tank F6, digestive shelf A7, digestive shelf B8, digestive shelf C9, sudden strain of a muscle cooling system 10 are answered, it is described
Reactive tank A1, reactive tank B2, reactive tank C3, reactive tank D4, reactive tank E5, reactive tank F6, digestive shelf A7, digestive shelf B8, digestion
Groove C9 is sequentially communicated, and the sudden strain of a muscle cooling system 10 connects with reactive tank A1 and reactive tank F6 respectively, the reactive tank B2, reactive tank
C3, reactive tank D4 top are higher than reactive tank A1, reactive tank E5, reactive tank F6 top, the reactive tank B (2), reactive tank C
(3) two acid-adding ports, are respectively provided with the top of reactive tank D (4).
In production, slurry enters extraction tank from reactive tank A1, then flows into reactive tank B2, reactive tank C3, reaction successively
Groove D4, reactive tank E5, reactive tank F6, the slurry of part is back to reactive tank A1 after dodging cooling system 10 and handling in reactive tank F6,
To improve the utilization rate of extraction yield and slurry, in reactive tank F6 the slurry of part by overfall flow into digestive shelf A7, then according to
Secondary inflow digestive shelf B8, digestive shelf C9, finally from digestive shelf C9 through material pulp pumping toward filter.It is reactive tank B2, reactive tank C3, anti-
Answer and two acid-adding ports are respectively provided with the top of groove D4, the concentrated sulfuric acid and filtering return to acid and add reactive tank by acid-adding port after mixing
In B2, reactive tank C3, reactive tank D4, reactive tank B2, reactive tank C3, reactive tank D4 acid adding ratio are 4:4:2, this ratio both may be used
To ensure to have enough sulfuric acid to be used for extractive reaction, SO in extractive reaction slurry can be avoided again3Concentration moment is higher and reaction is warm
Moment higher phenomenon is spent, improves effect of extracting.After reactive tank B2, reactive tank C3, reactive tank D4 injection sulfuric acid and filtering return to acid,
Sulfuric acid occurs vigorous reaction with slurry and generates carbon dioxide, forms certain thickness froth bed, and froth bed contains severe corrosive
Material, while corrosivity extremely strong ocratation and hydrogen fluoride gas are generated during extractive reaction, vigorous reaction process splashes
Foam and the ocratation that overflows of course of reaction and hydrogen fluoride gas etc. easily cause reactive tank B2, reactive tank C3, reactive tank
The damaged corrosion of D4 top structure, influences service life of equipment, thus reactive tank B2, reactive tank C3, reactive tank D4 top compared with
Reactive tank A1, reactive tank E5, increase about 500mm at the top of reactive tank F6, the top after increasing can effectively avoid the foam splashed and
At the top of corrosive gas corrosion cell body, the service life of equipment is improved.
The reactive tank A1, reactive tank B2, reactive tank C3, reactive tank D4, reactive tank E5, reactive tank F6, digestive shelf A7, disappear
Change groove B8, digestive shelf C9 to arrange into nine grids, such arrangement has compact and reasonable, and space availability ratio is high, investment cost
Low advantage.
The reactive tank A1, reactive tank B2, reactive tank C3, reactive tank D4, reactive tank E5, reactive tank F6, digestive shelf A7, disappear
Change in groove B8, digestive shelf C9 and be equipped with agitating device, by the stirring of agitating device, sulfuric acid can be sufficiently anti-with slurry rapidly
Should, avoid local SO3The situation of concentration and temperature inequality.
Carbon brick wearing layer is provided with below the agitating device, carbon brick wearing layer can protect extraction tank, prevent slurry from stirring
Directly washed away during mixing inside extraction tank, improve the service life of equipment.
The reactive tank A1, reactive tank B2, reactive tank C3, reactive tank D4, reactive tank E5, reactive tank F6, digestive shelf A7, disappear
Change groove B8, digestive shelf C9 are integral reinforced concrete structure, and the inner side of each reactive tank and digestive shelf is provided with rubber slab impervious barrier,
Rubber slab impervious barrier is externally provided with carbon brick anticorrosive coat, and single groove effective dimensions is about 6720mm × 6720mm × 8000mm, uses steel
Reinforced concrete can reduce equipment equipment cost, and rubber slab impervious barrier can improve the barrier performance of extraction tank, and carbon brick anticorrosive coat can be with
Protect inside extraction tank, prevent from being corroded by materials such as sulfuric acid, phosphoric acid, improve the service life of equipment.
Between the reactive tank A1 and reactive tank B2, between reactive tank B2 and reactive tank C3, reactive tank C3 and reactive tank D4
Between be provided with gas phase channel, the carbon dioxide bubble, ocratation, the gas collection such as hydrogen fluoride that can will react generation get up inflow
Discharged after reactive tank C3, reactive tank D4, improve extraction tank operation at top environment and security.Due to reactive tank B2, reactive tank C3,
500mm is increased at the top of reactive tank D4, gas phase channel mouth has also been correspondingly improved 500mm, can so prevent gas phase channel
Connected entrance buildup blocks, and ensures the unimpeded of gas phase channel.
A waste gas outlet is respectively provided with the top of the reactive tank C3, reactive tank D4, waste gas outlet keeps negative pressure state, can
Reactive tank A1, reactive tank B2, reactive tank C3, reactive tank D4 pernicious gas is collected by gas phase channel, carry out nothing
Evilization processing, air conservation.
Claims (7)
- A kind of 1. wet phosphoric acid extracting bath, it is characterised in that：Including reactive tank A (1), reactive tank B (2), reactive tank C (3), reaction Groove D (4), reactive tank E (5), reactive tank F (6), digestive shelf A (7), digestive shelf B (8), digestive shelf C (9), sudden strain of a muscle cooling system (10), institute State reactive tank A (1), reactive tank B (2), reactive tank C (3), reactive tank D (4), reactive tank E (5), reactive tank F (6), digestive shelf A (7), digestive shelf B (8), digestive shelf C (9) are sequentially communicated, it is described sudden strain of a muscle cooling system (10) respectively with reactive tank A (1) and reactive tank F (6) connect, the reactive tank B (2), reactive tank C (3), reactive tank D (4) top higher than reactive tank A (1), reactive tank E (5), Reactive tank F (6) top, the reactive tank B (2), reactive tank C (3), two acid-adding ports is respectively provided with the top of reactive tank D (4).
- A kind of 2. wet phosphoric acid extracting bath as claimed in claim 1, it is characterised in that：The reactive tank A (1), reactive tank B (2), reactive tank C (3), reactive tank D (4), reactive tank E (5), reactive tank F (6), digestive shelf A (7), digestive shelf B (8), digestive shelf C (9) arranged in nine grids.
- A kind of 3. wet phosphoric acid extracting bath as claimed in claim 1, it is characterised in that：The reactive tank A (1), reactive tank B (2), reactive tank C (3), reactive tank D (4), reactive tank E (5), reactive tank F (6), digestive shelf A (7), digestive shelf B (8), digestive shelf C (9) agitating device is equipped with.
- A kind of 4. wet phosphoric acid extracting bath as claimed in claim 3, it is characterised in that：Carbon brick is provided with below the agitating device Wearing layer.
- A kind of 5. wet phosphoric acid extracting bath as claimed in claim 1, it is characterised in that：The reactive tank A (1), reactive tank B (2), reactive tank C (3), reactive tank D (4), reactive tank E (5), reactive tank F (6), digestive shelf A (7), digestive shelf B (8), digestive shelf C (9) it is integral reinforced concrete structure, the inner side of each reactive tank and digestive shelf is provided with rubber slab impervious barrier, rubber slab impervious barrier It is externally provided with carbon brick anticorrosive coat.
- A kind of 6. wet phosphoric acid extracting bath as claimed in claim 1, it is characterised in that：The reactive tank A (1) and reactive tank B (2) gas phase channel is provided between, between reactive tank B (2) and reactive tank C (3), between reactive tank C (3) and reactive tank D (4).
- A kind of 7. wet phosphoric acid extracting bath as claimed in claim 1, it is characterised in that：The reactive tank C (3), reactive tank D (4) waste gas outlet is respectively provided with the top of.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720683310.7U CN206970216U (en) | 2017-06-13 | 2017-06-13 | A kind of wet phosphoric acid extracting bath |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720683310.7U CN206970216U (en) | 2017-06-13 | 2017-06-13 | A kind of wet phosphoric acid extracting bath |
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| Publication Number | Publication Date |
|---|---|
| CN206970216U true CN206970216U (en) | 2018-02-06 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720683310.7U Expired - Fee Related CN206970216U (en) | 2017-06-13 | 2017-06-13 | A kind of wet phosphoric acid extracting bath |
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| CN (1) | CN206970216U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108622868A (en) * | 2018-08-03 | 2018-10-09 | 禄丰天宝磷化工有限公司 | A kind of extraction tank for mid low grade phosphate rock |
| CN110898457A (en) * | 2019-12-25 | 2020-03-24 | 贵州开磷集团矿肥有限责任公司 | Novel extraction tank for wet-process phosphoric acid extraction and extraction pre-decomposition process |
| CN112299386A (en) * | 2020-10-31 | 2021-02-02 | 贵州开磷集团矿肥有限责任公司 | Method for removing sulfate radical in wet-process dilute phosphoric acid by using phosphate slurry |
-
2017
- 2017-06-13 CN CN201720683310.7U patent/CN206970216U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108622868A (en) * | 2018-08-03 | 2018-10-09 | 禄丰天宝磷化工有限公司 | A kind of extraction tank for mid low grade phosphate rock |
| CN110898457A (en) * | 2019-12-25 | 2020-03-24 | 贵州开磷集团矿肥有限责任公司 | Novel extraction tank for wet-process phosphoric acid extraction and extraction pre-decomposition process |
| CN112299386A (en) * | 2020-10-31 | 2021-02-02 | 贵州开磷集团矿肥有限责任公司 | Method for removing sulfate radical in wet-process dilute phosphoric acid by using phosphate slurry |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180206 Termination date: 20210613 |
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| CF01 | Termination of patent right due to non-payment of annual fee |