CN210030077U - Phosphogypsum purification treatment system - Google Patents
Phosphogypsum purification treatment system Download PDFInfo
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- CN210030077U CN210030077U CN201920727930.5U CN201920727930U CN210030077U CN 210030077 U CN210030077 U CN 210030077U CN 201920727930 U CN201920727930 U CN 201920727930U CN 210030077 U CN210030077 U CN 210030077U
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Abstract
The utility model provides a phosphogypsum purification treatment system, including first vacuum filter and second vacuum filter, still include the stirred tank, first vacuum filter's discharge gate and stirred tank communicate each other, and the discharge gate of stirred tank and second vacuum filter's feed inlet communicate each other, still include pickling pipe, first vacuum filter still washes area and third pickling area including the first filtering area, first pickling that connect gradually, and first filtering area is close to first vacuum filter's feed inlet, and pickling pipe's liquid outlet is towards the third pickling area, the utility model discloses a phosphogypsum purification system simple structure can retrieve the enough acidizing fluid of in the processing procedure, and degree of automation is high, can realize extensive serialization production, has good application prospect.
Description
Technical Field
The utility model relates to a solid useless purification treatment technical field especially relates to a ardealite purification treatment system.
Background
Phosphogypsum is a byproduct in the production of phosphoric acid, and mainly contains calcium sulfate dihydrate, and the pH value is 2-3. About 5 tons of phosphogypsum are produced every 1 ton of phosphoric acid is produced, the total storage amount of the phosphogypsum in China currently exceeds 2.5 hundred million tons, the comprehensive utilization rate is only about 24 percent, the difference of the components of phosphorite in different producing areas is large, the fluctuation of the impurity components, the content and the physical properties of the phosphogypsum is also large, and the problems are main obstacles influencing the resource utilization of the phosphogypsum.
How to convert the phosphogypsum into a material which has economic value and is suitable for cleaning becomes a problem which needs to be solved urgently in the field.
SUMMERY OF THE UTILITY MODEL
In view of this, the utility model provides a simple structure, running cost are low, can realize continuous stable large-scale production's ardealite purification treatment system.
The technical scheme of the utility model is realized like this: the utility model provides a phosphogypsum purification treatment system, including first vacuum filter, second vacuum filter and stirred tank, the discharge gate and the stirred tank of first vacuum filter communicate each other, and the discharge gate of stirred tank communicates each other with the feed inlet of second vacuum filter.
On the basis of the technical scheme, the first vacuum filter further comprises a first filtering area, a first pickling area, a second pickling area and a third pickling area which are sequentially connected, the first filtering area is close to a feeding hole of the first vacuum filter, and a liquid outlet of the pickling pipe faces the third pickling area.
The phosphogypsum is firstly filtered and washed by a first vacuum filter, then enters a stirring tank for pulping again, enters a second vacuum filter for filtering and washing after pulping, a pickling solution is sprayed out of a pickling pipe towards a third pickling belt, and the phosphogypsum passing through the third pickling belt is pickled by the pickling solution.
On the basis of the technical scheme, the device preferably further comprises a first gas-liquid separator, a second gas-liquid separator, a third gas-liquid separator, a fourth gas-liquid separator, a first feeding pump, a second feeding pump, a third feeding pump and a fourth feeding pump;
the lower part of the third pickling belt is communicated with a fourth feeding pump through a fourth gas-liquid separator, and an outlet of the fourth feeding pump is communicated with the upper part of the second pickling belt;
the lower part of the second acid washing belt is communicated with a third feeding pump through a third gas-liquid separator, and an outlet of the third feeding pump is communicated with the upper part of the first acid washing belt;
the lower part of the first pickling belt is communicated with the second feeding pump through the second gas-liquid separator, and the lower part of the first filtering area is communicated with the first feeding pump through the first gas-liquid separator.
The pickling solution passing through the third pickling belt is subjected to gas-liquid separation through a fourth gas-liquid separator below the third pickling belt to obtain the washed pickling solution, the washed pickling solution is pumped to the upper side of the second pickling belt by a fourth feeding pump, the acid solution passing through the second pickling belt is subjected to gas-liquid separation through the third gas-liquid separator again to obtain the pickling solution after the second washing, the pickling solution after the second washing is fed to the upper side of the first pickling belt by a third feeding pump again, the pickling solution passing through the first pickling belt is separated through the second gas-liquid separator again, and finally the pickling solution is conveyed to an external acid solution recovery position through the first feeding pump.
On the basis of the technical scheme, the gas-liquid separator preferably further comprises a first sprayer, a fifth gas-liquid separator and a first vacuum pump, the gas outlet ends of the first gas-liquid separator, the second gas-liquid separator, the third gas-liquid separator and the fourth gas-liquid separator are communicated with the first sprayer, and the gas outlet at the upper end of the first sprayer is communicated with the first vacuum pump through the fifth gas-liquid separator.
The first sprayer washes the gas generated in the washing and acid washing processes of the first vacuum filter and pumps the gas out through the first vacuum pump.
Further preferably, the second vacuum filter further comprises a second filtering area, a first washing area, a second washing area and an alkaline washing area which are sequentially connected, the second filtering area is close to the feeding end of the second vacuum filter, the liquid outlet of the alkaline washing pipe faces the upper portion of the alkaline washing area, and the liquid outlet of the water washing pipe faces the upper portion of the second washing area.
On the basis of the above technical scheme, preferably, the system further comprises a sixth gas-liquid separator, a seventh gas-liquid separator, an eighth gas-liquid separator, a ninth gas-liquid separator, a fifth feed pump, a sixth feed pump, a seventh feed pump and an eighth feed pump;
the lower part of the second filtering area is communicated with a fifth feeding pump through a sixth separator, and the lower part of the first washing area is communicated with a sixth feeding pump through a seventh gas-liquid separator;
the lower part of the second washing area is communicated with a seventh feeding pump through an eighth gas-liquid separator, and a discharge hole of the seventh feeding pump faces the upper part of the first washing area;
the lower part of the alkali washing area is communicated with the eighth feed pump through the ninth gas-liquid separator, and the discharge hole of the eighth feed pump faces the upper part of the second washing area.
The phosphogypsum slurry which is conveyed from the stirring tank and is subjected to the first washing is conveyed to a second vacuum filter, the phosphogypsum slurry is filtered in a second filtering area and is conveyed to a first washing area, a second washing area and an alkali washing area in sequence, a washing pipe is arranged above the second washing area, water is sprayed by the washing pipe to wash the phosphogypsum above the second washing area, residual acid liquor is washed, the washed water liquid is subjected to gas-liquid separation by an eighth gas-liquid separator and then enters a seventh feeding pump, the seventh feeding pump conveys the washing water to the upper part of the first washing area, the washing water is used for washing the phosphogypsum in the first washing area, the washed washing water enters a seventh gas-liquid separator again to separate gas and liquid and then enters a sixth feeding pump, the sixth feeding pump conveys the washing water to the first vacuum filter to be recycled as acid liquor, the acid liquor which is filtered by the second filtering area is separated by the sixth gas-liquid separator, conveying the pickling solution to a stirring tank through a fifth feeding pump for recycling; and the phosphogypsum passing through the second washing area enters an alkali washing area, an alkali washing pipe is arranged above the alkali washing area, alkali liquor sprayed by the alkali washing pipe is used for washing the phosphogypsum, the washed alkali liquor enters a ninth gas-liquid separator, the alkali liquor obtained after separation enters an eighth feeding pump, and the pump is used for pumping the alkali liquor to an external alkali liquor recovery area.
On the basis of the technical scheme, preferably, the discharge end of the fifth feeding pump is communicated with the pickling pipe, and the discharge end of the sixth feeding pump is communicated with the pickling pipe
On the basis of the technical scheme, the gas-liquid separator preferably further comprises a second sprayer, a tenth gas-liquid separator and a second vacuum pump, the gas outlet ends of the sixth gas-liquid separator, the seventh gas-liquid separator, the eighth gas-liquid separator and the ninth gas-liquid separator are communicated with the second sprayer, and the gas outlet at the upper end of the second sprayer is communicated with the second vacuum pump.
And the second sprayer washes the gas separated by the sixth gas-liquid separator, the seventh gas-liquid separator, the eighth gas-liquid separator and the ninth gas-liquid separator, and the washed gas is pumped away by a second vacuum pump.
The utility model discloses a phosphogypsum purification treatment system has following beneficial effect for prior art:
(1) the phosphogypsum purification treatment system has a simple structure, can recycle acid liquor in the treatment process, adopts a flow line form in the whole process, treats materials according to the sequence of the flow line, has high automation degree, and can realize large-scale continuous production;
(2) the utility model discloses an ardealite purification treatment system easily controls, and the running cost is low, adopts washing and pickling to combine, has improved the yield of phosphorus pentoxide in the ardealite, and the ardealite quality after the purification is good.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
Fig. 1 is the connection structure schematic diagram of the phosphogypsum purification treatment system of the utility model.
In the figure: 1-a first vacuum filter, 2-a second vacuum filter, 3-a stirring tank, 4-an acid washing pipe, 11-a first filtering area, 12-a first acid washing belt, 13-a second acid washing belt, 14-a third acid washing belt, 111-a first gas-liquid separator, 121-a second gas-liquid separator, 131-a third gas-liquid separator, 141-a fourth gas-liquid separator, 112-a first feed pump, 122-a second feed pump, 132-a third feed pump, 142-a fourth feed pump, 5-a first sprayer, 6-a fifth gas-liquid separator, 7-a first vacuum pump, 8-an acid washing pipe, 9-a water washing pipe, 21-a second filtering area, 22-a first washing area, 23-a second washing area, 24-an alkali washing area, 211-a sixth gas-liquid separator, 221-a seventh gas-liquid separator, 231-an eighth gas-liquid separator, 241-a ninth gas-liquid separator, 212-a fifth feed pump, 222-a sixth feed pump, 232-a seventh feed pump, 242-an eighth feed pump, 10-a second sprayer, 15-a tenth gas-liquid separator, 16-a second vacuum pump and 17-a conveying belt.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely below with reference to the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work all belong to the protection scope of the present invention.
As shown in figure 1, the utility model discloses a phosphogypsum purification treatment system, it includes first vacuum filter 1, second vacuum filter 2 and stirred tank 3, the discharge gate of first vacuum filter 1 communicates with stirred tank 3 each other, and the discharge gate of stirred tank 3 communicates with the feed inlet of second vacuum filter 2 each other.
In a specific embodiment, the device further comprises an acid washing pipe 4, the first vacuum filter 1 further comprises a first filtering area 11, a first acid washing area 12, a second acid washing area 13 and a third acid washing area 14 which are sequentially connected, the first filtering area 11 is close to a feeding hole of the first vacuum filter 1, and a liquid outlet of the acid washing pipe 4 faces the third acid washing area 14.
In specific embodiments, a first gas-liquid separator 111, a second gas-liquid separator 121, a third gas-liquid separator 131, a fourth gas-liquid separator 141, a first feed pump 112, a second feed pump 122, a third feed pump 132, and a fourth feed pump 142;
the lower part of the third pickling belt 14 is communicated with a fourth feeding pump 142 through a fourth gas-liquid separator 141, and the outlet of the fourth feeding pump 142 is communicated with the upper part of the second pickling belt 13;
the lower part of the second pickling belt 13 is communicated with a third feeding pump 132 through a third gas-liquid separator 131, and the outlet of the third feeding pump 132 is communicated to the upper part of the first pickling belt 12;
the lower side of the first pickling belt 12 is communicated with the second feed pump 122 through the second gas-liquid separator 121, and the lower side of the first filtering zone 11 is communicated with the first feed pump 112 through the first gas-liquid separator 111.
In a specific embodiment, the device further comprises a first sprayer 5, a fifth gas-liquid separator 6 and a first vacuum pump 7, the gas outlet ends of the first gas-liquid separator 111, the second gas-liquid separator 121, the third gas-liquid separator 131 and the fourth gas-liquid separator 141 are all communicated with the first sprayer 5, and the gas outlet end of the upper end of the first sprayer 5 is communicated with the first vacuum pump 7 through the fifth gas-liquid separator 6.
In a specific embodiment, the second vacuum filter 2 further comprises a second filtering area 21, a first washing area 22, a second washing area 23 and an alkaline washing area 24 which are sequentially connected, wherein the second filtering area 21 is close to the feed end of the second vacuum filter 2, the liquid outlet of the alkaline washing pipe 8 faces the upper part of the alkaline washing area 24, and the liquid outlet of the water washing pipe 9 faces the upper part of the second washing area 23.
In specific embodiments, a sixth gas-liquid separator 211, a seventh gas-liquid separator 221, an eighth gas-liquid separator 231, a ninth gas-liquid separator 241, a fifth feed pump 212, a sixth feed pump 222, a seventh feed pump 232, and an eighth feed pump 242;
the lower part of the second filtering zone 21 is communicated with a fifth feeding pump 212 through a sixth gas-liquid separator 211, and the lower part of the first washing zone 22 is communicated with a sixth feeding pump 222 through a seventh gas-liquid separator 221;
the lower part of the second washing zone 23 is communicated with a seventh feeding pump 232 through an eighth gas-liquid separator 231, and the discharge hole of the seventh feeding pump 232 faces the upper part of the first washing zone 22;
the lower part of the alkali washing zone 24 is communicated with the eighth feed pump 242 through the ninth gas-liquid separator 241, and the discharge port of the eighth feed pump 242 faces the upper part of the second washing zone 23.
In a specific embodiment, the discharge end of the fifth feed pump 212 is in communication with the pickling line 4, and the discharge end of the sixth feed pump 222 is in communication with the pickling line 4.
In a specific embodiment, the system further comprises a second sprayer 10, a tenth gas-liquid separator 15 and a second vacuum pump 16, the gas outlet ends of the sixth gas-liquid separator 211, the seventh gas-liquid separator 221, the eighth gas-liquid separator 231 and the ninth gas-liquid separator 241 are all communicated with the second sprayer 10, and the gas outlet end of the upper end of the second sprayer 10 is communicated with the second vacuum pump 16.
In the concrete embodiment, the device also comprises a conveying belt 17, and the discharge end of the second vacuum filter 2 is communicated with the conveying belt 17.
The above description is only a preferred embodiment of the present invention, and should not be taken as limiting the invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (9)
1. The phosphogypsum purification treatment system comprises a first vacuum filter (1) and a second vacuum filter (2), and is characterized by further comprising a stirring tank (3), wherein a discharge hole of the first vacuum filter (1) is communicated with the stirring tank (3), and a discharge hole of the stirring tank (3) is communicated with a feed hole of the second vacuum filter (2).
2. The phosphogypsum purification treatment system according to claim 1, further comprising an acid washing pipe (4), wherein the first vacuum filter (1) further comprises a first filtering area (11), a first acid washing belt (12), a second acid washing belt (13) and a third acid washing belt (14) which are connected in sequence, the first filtering area (11) is close to the feeding port of the first vacuum filter (1), and the liquid outlet of the acid washing pipe (4) faces the third acid washing belt (14).
3. The phosphogypsum purification treatment system according to claim 2, further comprising a first gas-liquid separator (111), a second gas-liquid separator (121), a third gas-liquid separator (131), a fourth gas-liquid separator (141), a first feeding pump (112), a second feeding pump (122), a third feeding pump (132) and a fourth feeding pump (142);
the lower part of the third pickling belt (14) is communicated with a fourth feeding pump (142) through a fourth gas-liquid separator (141), and an outlet of the fourth feeding pump (142) is communicated with the upper part of the second pickling belt (13);
the lower part of the second pickling belt (13) is communicated with a third feeding pump (132) through a third gas-liquid separator (131), and an outlet of the third feeding pump (132) is communicated with the upper part of the first pickling belt (12);
the lower part of the first pickling belt (12) is communicated with a second feeding pump (122) through a second gas-liquid separator (121), and the lower part of the first filtering area (11) is communicated with a first feeding pump (112) through a first gas-liquid separator (111).
4. The phosphogypsum purification treatment system according to claim 3, further comprising a first sprayer (5), a fifth gas-liquid separator (6) and a first vacuum pump (7), wherein the gas outlet ends of the first gas-liquid separator (111), the second gas-liquid separator (121), the third gas-liquid separator (131) and the fourth gas-liquid separator (141) are communicated with the first sprayer (5), and the gas outlet end of the upper end of the first sprayer (5) is communicated with the first vacuum pump (7) through the fifth gas-liquid separator (6).
5. The phosphogypsum purification treatment system according to claim 4, further comprising an alkali washing pipe (8) and a water washing pipe (9), wherein the second vacuum filter (2) further comprises a second filtering area (21), a first washing area (22), a second washing area (23) and an alkali washing area (24) which are connected in sequence, the second filtering area (21) is close to the feeding end of the second vacuum filter (2), the liquid outlet of the alkali washing pipe (8) faces to the upper part of the alkali washing area (24), and the liquid outlet of the water washing pipe (9) faces to the upper part of the second washing area (23).
6. The phosphogypsum purification treatment system according to claim 5, characterized by further comprising a sixth gas-liquid separator (211), a seventh gas-liquid separator (221), an eighth gas-liquid separator (231), a ninth gas-liquid separator (241), a fifth feeding pump (212), a sixth feeding pump (222), a seventh feeding pump (232) and an eighth feeding pump (242);
the lower part of the second filtering area (21) is communicated with a fifth feeding pump (212) through a sixth gas-liquid separator (211), and the lower part of the first washing area (22) is communicated with a sixth feeding pump (222) through a seventh gas-liquid separator (221);
the lower part of the second washing area (23) is communicated with a seventh feeding pump (232) through an eighth gas-liquid separator (231), and a discharge hole of the seventh feeding pump (232) faces to the upper part of the first washing area (22);
the lower part of the alkali washing area (24) is communicated with an eighth feeding pump (242) through a ninth gas-liquid separator (241), and the discharge hole of the eighth feeding pump (242) faces to the upper part of the second washing area (23).
7. The phosphogypsum purification treatment system according to claim 6, characterized in that the discharge end of the fifth feed pump (212) is interconnected with the pickling pipe (4) and the discharge end of the sixth feed pump (222) is interconnected with the pickling pipe (4).
8. The phosphogypsum purification treatment system according to claim 6, further comprising a second sprayer (10), a tenth gas-liquid separator (15) and a second vacuum pump (16), wherein the outlet ends of the sixth gas-liquid separator (211), the seventh gas-liquid separator (221), the eighth gas-liquid separator (231) and the ninth gas-liquid separator (241) are all communicated with the second sprayer (10), and the outlet end of the upper end of the second sprayer (10) is communicated with the second vacuum pump (16).
9. The phosphogypsum purification treatment system according to claim 8, further comprising a conveyor belt (17), wherein the discharge end of the second vacuum filter (2) is communicated with the conveyor belt (17).
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920727930.5U CN210030077U (en) | 2019-05-21 | 2019-05-21 | Phosphogypsum purification treatment system |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201920727930.5U CN210030077U (en) | 2019-05-21 | 2019-05-21 | Phosphogypsum purification treatment system |
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| CN210030077U true CN210030077U (en) | 2020-02-07 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115557719A (en) * | 2022-08-16 | 2023-01-03 | 湖北祥云(集团)化工股份有限公司 | Comprehensive treatment method of phosphogypsum |
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2019
- 2019-05-21 CN CN201920727930.5U patent/CN210030077U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115557719A (en) * | 2022-08-16 | 2023-01-03 | 湖北祥云(集团)化工股份有限公司 | Comprehensive treatment method of phosphogypsum |
| CN115557719B (en) * | 2022-08-16 | 2023-08-15 | 湖北祥云(集团)化工股份有限公司 | Comprehensive treatment method of phosphogypsum |
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