CN219823673U - Device for removing arsenic from wet-process phosphoric acid in industrial production process - Google Patents
Device for removing arsenic from wet-process phosphoric acid in industrial production process Download PDFInfo
- Publication number
- CN219823673U CN219823673U CN202320851599.4U CN202320851599U CN219823673U CN 219823673 U CN219823673 U CN 219823673U CN 202320851599 U CN202320851599 U CN 202320851599U CN 219823673 U CN219823673 U CN 219823673U
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- CN
- China
- Prior art keywords
- mixer
- phosphoric acid
- wet
- dearsenification
- dearsenifying
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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- NBIIXXVUZAFLBC-UHFFFAOYSA-N Phosphoric acid Chemical compound OP(O)(O)=O NBIIXXVUZAFLBC-UHFFFAOYSA-N 0.000 title claims abstract description 94
- 229910000147 aluminium phosphate Inorganic materials 0.000 title claims abstract description 47
- 238000000034 method Methods 0.000 title claims abstract description 43
- 238000009776 industrial production Methods 0.000 title claims abstract description 9
- 229910052785 arsenic Inorganic materials 0.000 title description 12
- RQNWIZPPADIBDY-UHFFFAOYSA-N arsenic atom Chemical compound [As] RQNWIZPPADIBDY-UHFFFAOYSA-N 0.000 title description 12
- 238000003860 storage Methods 0.000 claims abstract description 31
- 239000003795 chemical substances by application Substances 0.000 claims abstract description 28
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 5
- 239000010959 steel Substances 0.000 claims abstract description 5
- 230000008569 process Effects 0.000 claims description 12
- 238000004519 manufacturing process Methods 0.000 claims description 10
- 230000000694 effects Effects 0.000 abstract description 5
- 239000012530 fluid Substances 0.000 abstract description 4
- 239000007788 liquid Substances 0.000 abstract description 4
- 230000001105 regulatory effect Effects 0.000 abstract description 3
- 238000000926 separation method Methods 0.000 description 4
- 238000003756 stirring Methods 0.000 description 4
- RWSOTUBLDIXVET-UHFFFAOYSA-N Dihydrogen sulfide Chemical compound S RWSOTUBLDIXVET-UHFFFAOYSA-N 0.000 description 3
- 229910000037 hydrogen sulfide Inorganic materials 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
- 238000012986 modification Methods 0.000 description 3
- 238000005265 energy consumption Methods 0.000 description 2
- 239000007789 gas Substances 0.000 description 2
- 229910052979 sodium sulfide Inorganic materials 0.000 description 2
- GRVFOGOEDUUMBP-UHFFFAOYSA-N sodium sulfide (anhydrous) Chemical compound [Na+].[Na+].[S-2] GRVFOGOEDUUMBP-UHFFFAOYSA-N 0.000 description 2
- 230000004075 alteration Effects 0.000 description 1
- 230000000536 complexating effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000000746 purification Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 231100000331 toxic Toxicity 0.000 description 1
- 230000002588 toxic effect Effects 0.000 description 1
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P10/00—Technologies related to metal processing
- Y02P10/20—Recycling
Landscapes
- Production Of Liquid Hydrocarbon Mixture For Refining Petroleum (AREA)
Abstract
The utility model discloses a wet-process phosphoric acid dearsenification device used in an industrial production process, which comprises an elbow-shaped dearsenification mixer, a dearsenification agent storage tank and a wet-process phosphoric acid storage tank, wherein the dearsenification agent storage tank and the wet-process phosphoric acid storage tank are respectively connected to the inlet end of the dearsenification mixer through a metering pump and a centrifugal pump, and the outlet end of the dearsenification mixer is connected with a wet-process phosphoric acid after-removal system. The dearsenifying mixer is made of a 316L seamless steel pipe, the number of the turning-back elbows of the dearsenifying mixer is not less than 6, and the length of a horizontal pipe between every two elbows is 3 meters. The dearsenifying mixer of the device can ensure that after wet phosphoric acid and dearsenifying agent enter the dearsenifying mixer, the mixing of the two liquids is controlled by the turbulence layer degree of the fluid in the dearsenifying mixer, and the indexes such as flow rate, viscosity and the like are regulated, so that the Reynolds coefficient is ensured to be more than 250000, and when the Reynolds coefficient is more than 250000, the mixing effect in the dearsenifying mixer is optimal, and the consumption of the dearsenifying agent is minimum under the same dearsenifying condition.
Description
Technical Field
The utility model belongs to the technical field of chemical industry, and particularly relates to a wet-process phosphoric acid dearsenification device used in an industrial production process.
Background
The existing wet-process phosphoric acid dearsenization process in the industrial production process mainly adopts a sodium sulfide dearsenization process, because toxic and harmful hydrogen sulfide gas can be generated in the sodium sulfide dearsenization process, the dearsenization agent and the wet-process phosphoric acid can be uniformly mixed by a production device only through forced stirring, and the dearsenization agent can not be timely dispersed into the wet-process phosphoric acid in the forced stirring process, and the partial concentration of the dearsenization agent is high and can react with other impurities in the wet-process phosphoric acid preferentially, so that the dearsenization effect is poor, the consumption of the dearsenization agent is high, and the like. The energy consumption of the dearsenifying process is increased. And increases the risk of leakage and production costs.
The device for efficiently removing arsenic from the phosphoric acid by wet purification comprises a feed mixer, a microreactor and a curing separation kettle, wherein the publication number of the device is CN 214299293U; the inlet pipe of the feeding mixer is respectively connected with the hydrogen sulfide storage tank and the phosphoric acid storage tank to be treated; the outlet pipe of the feeding mixer is connected with a micro-reactor, the micro-reactor is connected with a curing separation kettle, and the curing separation kettle is connected with a treated phosphoric acid storage tank; and the curing separation kettle is provided with a pipeline which is connected to the feeding mixer through a hydrogen sulfide gas circulator. However, the dearsenization agent and the wet phosphoric acid can be uniformly mixed by stirring in the microreactor, and the defects of high energy consumption, wide occupied area, low efficiency and the like exist in the use.
Therefore, a device for forcing the turbulent flow of the wet phosphoric acid is needed to solve the technical problems, the consumption of the dearsenifying agent in the production process can be effectively reduced, stirring is not needed in the production process, the occupied area is small, and the device can be used for producing other two-phase uniform mixing types.
Disclosure of Invention
In order to solve the problems, the utility model aims to provide a device for removing arsenic from wet-process phosphoric acid in an industrial production process.
In order to achieve the above purpose, the present utility model adopts the following technical scheme: the device for removing arsenic from wet-process phosphoric acid in the industrial production process comprises an elbow-shaped arsenic removal mixer, an arsenic removal agent storage tank and a wet-process phosphoric acid storage tank, wherein the arsenic removal agent storage tank and the wet-process phosphoric acid storage tank are connected to the inlet end of the arsenic removal mixer through a metering pump and a centrifugal pump respectively, and the outlet end of the arsenic removal mixer is connected with a wet-process phosphoric acid post-removal system.
The dearsenifying mixer is made of a 316L seamless steel pipe, the number of the turning-back elbows of the dearsenifying mixer is not less than 6, and the length of a horizontal pipe between every two elbows is 3 meters.
After the wet-process phosphoric acid and the dearsenifying agent enter the dearsenifying mixer, liquid mixing is completed through turbulent layer degree control of fluid in the dearsenifying mixer, and indexes such as flow rate, viscosity and the like are regulated, so that the Reynolds coefficient in the dearsenifying mixer is larger than 250000.
The dearsenization agent storage tank is cube-shaped.
The wet-process phosphoric acid storage tank is cylindrical.
Compared with the prior art, the utility model has the following advantages: the dearsenifying mixer of the device is made of a seamless steel pipe made of 316L materials, the number of return bends of the mixer is not less than 6, the length of a horizontal pipe between every two bends is 3 meters, after wet phosphoric acid and dearsenifying agent enter the dearsenifying mixer, the mixing of two liquids is controlled by the turbulence layer of the fluid in the dearsenifying mixer, the indexes such as flow rate, viscosity and the like are regulated, the Reynolds coefficient is ensured to be more than 250000, when the Reynolds coefficient is more than 250000, the mixing effect in the dearsenifying mixer is optimal, and the dearsenifying agent consumption is minimum under the same dearsenifying condition.
Drawings
In order to more clearly illustrate the technical solutions of specific embodiments of the present utility model, the drawings that are needed in the description of the embodiments will be briefly described below, and it is obvious that the drawings described below are only some embodiments of the present utility model, and other drawings may be obtained according to these drawings without inventive effort to a person of ordinary skill in the art.
FIG. 1 is a schematic diagram of a wet process phosphoric acid dearsenification device used in the industrial process according to the present utility model;
in the figure, a 1-dearsenification mixer; 2-dearsenifying agent storage tank; 3-a wet process phosphoric acid storage tank; 4-a metering pump; 5-a centrifugal pump; 6-a wet phosphoric acid post removal system.
Detailed Description
The present utility model will be further described with reference to the drawings and the specific embodiments, but it should not be construed that the scope of the subject matter of the present utility model is limited to the following embodiments, and various modifications, substitutions and alterations made according to the ordinary skill and familiar means of the art to which this utility model pertains are included within the scope of the present utility model without departing from the above technical idea of the utility model.
Referring to fig. 1, a wet-process phosphoric acid dearsenification device for an industrial production process comprises an elbow-shaped dearsenification mixer 1, an dearsenification agent storage tank 2 and a wet-process phosphoric acid storage tank 3, wherein the dearsenification agent storage tank 2 and the wet-process phosphoric acid storage tank 3 are respectively connected to an inlet end of the dearsenification mixer 1 through a metering pump 4 and a centrifugal pump 5, and an outlet end of the dearsenification mixer 1 is connected with a wet-process phosphoric acid post-removal system 6.
The dearsenifying mixer 1 is made of a 316L seamless steel pipe, the number of the turning-back bends of the dearsenifying mixer 1 is 6, and the length of a horizontal pipe between every two bends is 3 meters; the dearsenization agent storage tank 2 is a cube with the side length of 1.2 meters and can store the dearsenization agent 1.3M3; the diameter of the storage tank 3 of the wet-process phosphoric acid storage tank is 10 meters, the height of the storage tank is 12 meters, and 750M3 of wet-process phosphoric acid can be stored; the dearsenization agent is associated with arsenic in the wet-process phosphoric acid in a complexing mode to achieve the dearsenization effect.
Working principle: the wet phosphoric acid and the dearsenization agent are respectively stored in a wet phosphoric acid storage tank 3 and an dearsenization agent storage tank 2, enter an dearsenization mixer 1 after passing through a centrifugal pump 5 and a metering pump 4, are mixed mainly by the turbulence layer of fluid in the dearsenization mixer 1, the flow rate of the liquid is controlled to be 1m/s, the density is 1400Kg/m < 3 >, the pipe inner diameter is 150mm, the viscosity is 10 multiplied by 10 < -3 > Pa.s, the Reynolds coefficient Re is 252000 through the calculation of the formula Re=ρvd/mu, when the Reynolds coefficient is larger than 250000, the mixing effect in the dearsenization mixer is optimal, and the dearsenization agent consumption is minimum under the same dearsenization condition.
The utility model has been described in detail with reference to a device for removing arsenic from wet phosphoric acid in an industrial process, and specific examples are applied to illustrate the structure and working principle of the utility model, and the description of the above examples is only used to help understand the method and core idea of the utility model. It should be noted that it will be apparent to those skilled in the art that various improvements and modifications can be made to the present utility model without departing from the principles of the utility model, and such improvements and modifications fall within the scope of the appended claims.
Claims (5)
1. A device that is arranged in industrial production in-process wet process phosphoric acid dearsenifies which characterized in that: the device comprises an elbow-shaped dearsenification mixer (1), an dearsenification agent storage tank (2) and a wet-process phosphoric acid storage tank (3), wherein the dearsenification agent storage tank (2) and the wet-process phosphoric acid storage tank (3) are connected to the inlet end of the dearsenification mixer (1) through a metering pump (4) and a centrifugal pump (5) respectively, and the outlet end of the dearsenification mixer (1) is connected with a wet-process phosphoric acid post-removal system (6).
2. The apparatus for wet process phosphoric acid dearsenification in an industrial process according to claim 1, wherein: the dearsenifying mixer (1) is made of a 316L seamless steel pipe, the number of the turning-back bends of the dearsenifying mixer (1) is not less than 6, and the length of a horizontal pipe between every two bends is 3 meters.
3. The apparatus for wet process phosphoric acid dearsenification in an industrial process according to claim 1, wherein: the Reynolds number in the dearsenification mixer (1) is greater than 250000.
4. The apparatus for wet process phosphoric acid dearsenification in an industrial process according to claim 1, wherein: the dearsenization agent storage tank (2) is cube-shaped.
5. The apparatus for wet process phosphoric acid dearsenification in an industrial process according to claim 1, wherein: the wet-process phosphoric acid storage tank (3) is cylindrical.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320851599.4U CN219823673U (en) | 2023-04-17 | 2023-04-17 | Device for removing arsenic from wet-process phosphoric acid in industrial production process |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320851599.4U CN219823673U (en) | 2023-04-17 | 2023-04-17 | Device for removing arsenic from wet-process phosphoric acid in industrial production process |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219823673U true CN219823673U (en) | 2023-10-13 |
Family
ID=88246761
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320851599.4U Active CN219823673U (en) | 2023-04-17 | 2023-04-17 | Device for removing arsenic from wet-process phosphoric acid in industrial production process |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219823673U (en) |
-
2023
- 2023-04-17 CN CN202320851599.4U patent/CN219823673U/en active Active
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