CN114433363A - Phosphogypsum organic carbon enrichment device - Google Patents
Phosphogypsum organic carbon enrichment device Download PDFInfo
- Publication number
- CN114433363A CN114433363A CN202111581454.9A CN202111581454A CN114433363A CN 114433363 A CN114433363 A CN 114433363A CN 202111581454 A CN202111581454 A CN 202111581454A CN 114433363 A CN114433363 A CN 114433363A
- Authority
- CN
- China
- Prior art keywords
- slurry
- organic carbon
- stirring shaft
- phosphogypsum
- pipe
- 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.)
- Granted
Links
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 title claims abstract description 45
- 229910052799 carbon Inorganic materials 0.000 title claims abstract description 45
- PASHVRUKOFIRIK-UHFFFAOYSA-L calcium sulfate dihydrate Chemical compound O.O.[Ca+2].[O-]S([O-])(=O)=O PASHVRUKOFIRIK-UHFFFAOYSA-L 0.000 title claims abstract description 27
- 239000002002 slurry Substances 0.000 claims abstract description 63
- 238000003756 stirring Methods 0.000 claims abstract description 41
- 238000000926 separation method Methods 0.000 claims abstract description 34
- 239000003814 drug Substances 0.000 claims abstract description 6
- 239000000126 substance Substances 0.000 claims abstract description 6
- 238000007789 sealing Methods 0.000 claims description 3
- 238000007599 discharging Methods 0.000 claims 1
- 238000005054 agglomeration Methods 0.000 abstract description 3
- 230000002776 aggregation Effects 0.000 abstract description 3
- 238000000034 method Methods 0.000 description 7
- 239000002994 raw material Substances 0.000 description 6
- 239000002893 slag Substances 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 238000005188 flotation Methods 0.000 description 3
- 238000005406 washing Methods 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005119 centrifugation Methods 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 239000002689 soil Substances 0.000 description 1
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B03—SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
- B03D—FLOTATION; DIFFERENTIAL SEDIMENTATION
- B03D1/00—Flotation
- B03D1/14—Flotation machines
- B03D1/1443—Feed or discharge mechanisms for flotation tanks
- B03D1/1456—Feed mechanisms for the slurry
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B03—SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
- B03D—FLOTATION; DIFFERENTIAL SEDIMENTATION
- B03D1/00—Flotation
- B03D1/14—Flotation machines
- B03D1/16—Flotation machines with impellers; Subaeration machines
- B03D1/22—Flotation machines with impellers; Subaeration machines with external blowers
Abstract
The invention provides an organic carbon enrichment device for phosphogypsum, which comprises a support frame, wherein a separation barrel, a medicine adding barrel, a slurry pump and a motor are arranged on the support frame, and a slurry discharge valve is arranged at the bottom of the separation barrel; the upper part of the separating cylinder is provided with a collecting box, and the bottom of the collecting box is provided with a collecting pipe; a stirring shaft and an inner step are arranged in the separation cylinder, a supporting wheel is arranged on the stirring shaft, and the supporting wheel is lapped on the inner step; the upper half section of the stirring shaft is of a hollow structure, and the lower part of the hollow structure is provided with a slurry outlet pipe which faces obliquely downwards; the upper part of the stirring shaft extends out of the separation cylinder, the extending part is provided with a fluted disc, and the motor is connected with the fluted disc through a fluted shaft; the slurry pump is connected with the chemical adding barrel, a slurry pipe is arranged at the outlet of the slurry pump, and the slurry pipe is rotatably connected with the upper end of the stirring shaft. The invention improves the separation rate of organic carbon in the phosphogypsum and is convenient to operate; the agglomeration phenomenon is avoided; the slurry rich in organic carbon and the feeding slurry do not produce secondary mixing, the concentration of the organic carbon is linearly distributed in the vertical direction, and the separation rate is high.
Description
Technical Field
The invention relates to the technical field of recovery of organic matters in phosphogypsum; in particular to a phosphogypsum organic carbon enrichment device.
Background
The black organic carbon in the phosphogypsum seriously affects the quality of the phosphogypsum product, and the separation of the organic carbon is the premise of obtaining high-quality application of the phosphogypsum product. Meanwhile, the organic carbon has wide application, for example, the organic carbon can be used for improving soil properties, making chemical raw materials and the like, if the organic carbon is not fully enriched, resources are wasted, the environment is polluted, and most importantly, the comprehensive utilization of the phosphogypsum is influenced.
The most used traditional phosphogypsum organic carbon enrichment method at present is a water washing method, and a large amount of water is used for washing to float and separate black impurities. The remaining methods are also flotation methods, separation being carried out with a flotation machine or flotation column: continuously conveying the phosphogypsum raw material after adding the chemicals and mixing into a separating cylinder for stirring, floating the organic carbon, and finally overflowing from the top of the separating cylinder to obtain enriched slurry with rich organic carbon content, wherein the slurry at the bottom of the separating cylinder has low organic carbon content and flows out through a discharge valve at the bottom of the separating cylinder at the bottom. This method has the following problems: (1) the slurry flowing into the separation cylinder is not uniformly distributed, and the organic carbon cannot be fully separated; (2) the floating speed of the organic carbon is slow, and the organic carbon is mixed with the newly added raw materials in the floating process and causes poor separation effect under mutual influence.
Disclosure of Invention
In order to solve the technical problem, the invention provides a phosphogypsum organic carbon enrichment device.
The invention is realized by the following technical scheme.
The invention provides a phosphogypsum organic carbon enrichment device which comprises a support frame, wherein a separation cylinder, a medicine feeding barrel, a slurry pump and a motor are arranged on the support frame, and a slurry discharge valve is arranged at the bottom of the separation cylinder; the upper part of the separation barrel is provided with a collecting box, and the bottom of the collecting box is provided with a collecting pipe; a stirring shaft and an inner step are arranged in the separation cylinder, a supporting wheel is arranged on the stirring shaft, and the supporting wheel is lapped on the inner step; the upper half section of the stirring shaft is of a hollow structure, and the lower part of the hollow structure is provided with a slurry outlet pipe which faces obliquely downwards; the upper part of the stirring shaft extends out of the separation cylinder, the extending part is provided with a fluted disc, and the motor is connected with the fluted disc through a fluted shaft; the slurry pump is connected with the chemical feeding barrel, a slurry pipe is arranged at the outlet of the slurry pump, and the slurry pipe is rotatably connected with the upper end of the stirring shaft.
And a gas distributor is also arranged below the stirring shaft, a connecting pipe is arranged at the lower part of the separating cylinder and is connected with the gas distributor, and the outer end of the connecting pipe is connected with a gas pump.
The gas distributor comprises an inner ring cavity and an outer ring cavity, a plurality of spoke pipes are connected between the inner ring cavity and the outer ring cavity, a plurality of gas outlet holes are formed in the inner ring cavity, the outer ring cavity and the spoke pipes, and a gas inlet used for connecting a connecting pipe is formed in the outer ring cavity.
The separating cylinder is of a two-section structure, and the two sections are connected through flanges.
The bottom of the collecting box is connected with the outer wall of the separating cylinder in a sealing mode, the bottom of the collecting box is of an inclined structure, and the collecting pipe is located at the lowest position of the inclined structure.
The upper end of the stirring shaft is provided with a connector which is respectively connected with the stirring shaft and the slurry pipe through bearings.
An end cover is arranged on the inner side of the bearing.
The connector is fixed on the support frame or the collecting box.
And blades are arranged at the lower part of the stirring shaft.
The blades are distributed spirally.
The bottom of the separation cylinder is conical, and the slurry discharge valve is arranged at the lower part of the cone.
The pulp outlet pipe is inclined at forty-five degrees.
The invention has the beneficial effects that:
the separation rate of organic carbon in the phosphogypsum is improved, and the operation is convenient; the slurry outlet pipe is used for rotary feeding, the feeding is distributed in a circumferential manner and is dispersed to the periphery under the action of centrifugal force, the agglomeration phenomenon is avoided, and the separation rate is high; the slurry enriched with organic carbon and the fed slurry do not produce secondary mixing, so that the concentration of the organic carbon is linearly distributed in the vertical direction, and the separation rate is further improved.
Drawings
Fig. 1 is a schematic structural view of the present invention.
Fig. 2 is a schematic diagram of the structure of the gas distributor.
In the figure: 1-a support frame; 2-a separation cylinder; 3-a gas distributor; 4-pipe connection; 5, an air pump; 6-stirring shaft; 7-inner step; 8-a support wheel; 9-slurry outlet pipe; 10-a fluted disc; 11-a motor; 12-a collection box; 13-a collection tube; 14-a medicine adding barrel; 15-slurry pump; 16-slurry tube; 17-a slurry discharge valve; 18-a connector; 19-a bearing; 20-end cap; 21-leaf blade; 22-inner ring cavity; 23-outer ring cavity; 24-a spoke tube; 25-air outlet holes; 26-an air inlet; 27-flange.
Detailed Description
The technical solution of the present invention is further described below, but the scope of the claimed invention is not limited to the described.
As shown in FIGS. 1-2, the structure of the present invention is schematically illustrated as follows:
the invention provides an organic carbon enrichment device for phosphogypsum, which comprises a support frame 1, wherein a separation barrel 2, a medicine adding barrel 14, a slurry pump 15 and a motor 11 are arranged on the support frame 1, and a slurry discharge valve 17 is arranged at the bottom of the separation barrel 2; a collecting box 12 is arranged at the upper part of the separating cylinder 2, and a collecting pipe 13 is arranged at the bottom of the collecting box 12; a stirring shaft 6 and an inner step 7 are arranged in the separation cylinder 2, a supporting wheel 8 is arranged on the stirring shaft 6, and the supporting wheel 8 is lapped on the inner step 7; the upper half section of the stirring shaft 6 is of a hollow structure, and the lower part of the hollow structure is provided with a slurry outlet pipe 9 which faces obliquely downwards; the upper part of the stirring shaft 6 extends out of the separation cylinder 2, a fluted disc 10 is arranged on the extending part, and the motor 11 is connected with the fluted disc 10 through a fluted shaft; the slurry pump 15 is connected with the chemical feeding barrel 14, a slurry pipe 16 is arranged at the outlet of the slurry pump 15, and the slurry pipe 16 is rotatably connected with the upper end of the stirring shaft 6.
The principle is as follows: the supporting wheel 8 is lapped on the inner step 7 and has axial and radial limits on the lower part of the stirring shaft 6; the slag slurry pipe 16 is rotationally connected with the upper end of the stirring shaft 6, the slag slurry pipe 16 is generally rigid and can be fixed on the support frame 1 or the collection box 12, and the upper part of the stirring shaft 6 is axially and radially limited; the motor 11 drives the stirring shaft 6 through the gear shaft-gear disc 10; the medicine adding barrel 14 is used for preparing phosphogypsum raw materials, the prepared slurry raw materials enter the hollow part at the upper part of the stirring shaft 6 through the slurry pump 15 and the slurry pipe 16, and flow out of the slurry outlet pipe 9 under the action of rotation and centrifugation, so that the raw materials enter the middle part of the separation barrel 2 and are distributed in a dispersed manner; in the reaction process, the organic carbon is separated and floats upwards, the slurry with higher organic carbon content above the slurry outlet pipe 9 and the fed slurry do not generate secondary mixing, the concentration of the organic carbon is linearly distributed in the vertical direction, and the separation efficiency is improved similar to the theory of a rectifying tower.
By adopting the method, the separation rate of organic carbon in the phosphogypsum is improved, and the operation is convenient; the slurry outlet pipe 9 is used for rotary feeding, the feeding is distributed in a circumferential manner and is dispersed to the periphery under the action of centrifugal force, the agglomeration phenomenon is avoided, and the separation rate is high; the slurry enriched with organic carbon and the fed slurry do not produce secondary mixing, so that the concentration of the organic carbon is linearly distributed in the vertical direction, and the separation rate is further improved.
And a gas distributor 3 is also arranged below the stirring shaft 6, a connecting pipe 4 is arranged at the lower part of the separating cylinder 2, the connecting pipe 4 is connected with the gas distributor 3, and the outer end of the connecting pipe 4 is connected with a gas pump 5. Bubbles are generated upwards through the gas distributor 3, so that the buoyancy of the organic carbon is increased, and the separation speed and the separation rate are improved.
The gas distributor 3 comprises an inner ring cavity 22 and an outer ring cavity 23, a plurality of spoke pipes 24 are connected between the inner ring cavity 22 and the outer ring cavity 23, a plurality of gas outlet holes 25 are formed in the inner ring cavity 22, the outer ring cavity 23 and the spoke pipes 24, and a gas inlet 26 for connecting the connecting pipe 4 is formed in the outer ring cavity 23. Simple structure and low cost.
The separating cylinder 2 is of a two-section structure, and the two sections are connected through a flange 27. The gas distributor 3 is convenient to put in, and the assembly and the maintenance are convenient.
The bottom of the collecting box 12 is connected with the outer wall of the separating cylinder 2 in a sealing mode, the bottom of the collecting box 12 is of an inclined structure, and the collecting pipe 13 is located at the lowest position of the inclined structure. Preventing leakage and facilitating the thorough collection of the organic carbon-enriched slurry.
The upper end of the stirring shaft 6 is provided with a connector 18, and the connector 18 is respectively connected with the stirring shaft 6 and the slurry pipe 16 through a bearing 19. The mechanical vibration is convenient to adapt, the stress is reduced, and the assembly difficulty is reduced.
An end cover 20 is arranged on the inner side of the bearing 19. Prevent the slag slurry from splashing into the bearing 19 and improve the safety.
The connector 18 is fixed to the support 1 or to the collecting tank 12. The stress of the slurry pipe 16 is reduced, and the slurry pipe 16 is convenient to arrange.
The lower part of the stirring shaft 6 is provided with blades 21. The stirring disturbance degree is increased, and the organic carbon separation effect is improved.
The blades 21 are spirally distributed. When the stirring shaft 6 rotates, the blades 21 generate upward force on the internal liquid, so that the falling speed of the slag slurry is reduced, the floating speed of the organic carbon is increased, and the separation rate is increased.
The bottom of the separating cylinder 2 is conical, and the slurry discharge valve 17 is arranged at the lower part of the conical shape. Is convenient for collecting the slurry and has good draining effect.
The pulp outlet pipe 9 is inclined at forty-five degrees.
Claims (10)
1. An organic carbon enrichment facility of ardealite, its characterized in that: the device comprises a support frame (1), wherein a separating cylinder (2), a medicine adding barrel (14), a slurry pump (15) and a motor (11) are arranged on the support frame (1), and a slurry discharging valve (17) is arranged at the bottom of the separating cylinder (2); a collecting box (12) is arranged at the upper part of the separating cylinder (2), and a collecting pipe (13) is arranged at the bottom of the collecting box (12); a stirring shaft (6) and an inner step (7) are arranged in the separation cylinder (2), a supporting wheel (8) is arranged on the stirring shaft (6), and the supporting wheel (8) is lapped on the inner step (7); the upper half section of the stirring shaft (6) is of a hollow structure, and the lower part of the hollow structure is provided with a slurry outlet pipe (9) which faces obliquely downwards; the upper part of the stirring shaft (6) extends out of the separating cylinder (2), a fluted disc (10) is arranged on the extending part, and the motor (11) is connected with the fluted disc (10) through a fluted shaft; the slurry pump (15) is connected with the chemical adding barrel (14), a slurry pipe (16) is arranged at the outlet of the slurry pump (15), and the slurry pipe (16) is rotatably connected with the upper end of the stirring shaft (6).
2. The phosphogypsum organic carbon enrichment device according to claim 1, characterized in that: the stirring shaft (6) is further provided with a gas distributor (3) below, the lower portion of the separating cylinder (2) is provided with a connecting pipe (4), the connecting pipe (4) is connected with the gas distributor (3), and the outer end of the connecting pipe (4) is connected with a gas pump (5).
3. The phosphogypsum organic carbon enrichment device according to claim 2, characterized in that: the gas distributor (3) comprises an inner ring cavity (22) and an outer ring cavity (23), a plurality of spoke pipes (24) are connected between the inner ring cavity (22) and the outer ring cavity (23), a plurality of gas outlet holes (25) are formed in the inner ring cavity (22), the outer ring cavity (23) and the spoke pipes (24), and a gas inlet (26) used for connecting the connecting pipe (4) is formed in the outer ring cavity (23).
4. The phosphogypsum organic carbon enrichment device according to claim 2, characterized in that: the separating cylinder (2) is of a two-section structure, and the two sections are connected through a flange (27).
5. The phosphogypsum organic carbon enrichment device according to claim 1, characterized in that: the bottom of the collecting box (12) is connected with the outer wall of the separating cylinder (2) in a sealing mode, the bottom of the collecting box (12) is of an inclined structure, and the collecting pipe (13) is located at the lowest position of the inclined structure.
6. The phosphogypsum organic carbon enrichment device according to claim 1, characterized in that: the upper end of the stirring shaft (6) is provided with a connector (18), and the connector (18) is respectively connected with the stirring shaft (6) and the slurry pipe (16) through a bearing (19).
7. The phosphogypsum organic carbon enrichment device according to claim 6, characterized in that: an end cover (20) is arranged on the inner side of the bearing (19).
8. The phosphogypsum organic carbon enrichment device according to claim 6, characterized in that: the connector (18) is fixed on the support frame (1) or the collection box (12).
9. The phosphogypsum organic carbon enrichment device according to claim 1, characterized in that: the lower part of the stirring shaft (6) is provided with blades (21).
10. The phosphogypsum organic carbon enrichment device of claim 9, characterized in that: the blades (21) are distributed in a spiral shape.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111581454.9A CN114433363B (en) | 2021-12-22 | Phosphogypsum organic carbon enrichment device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111581454.9A CN114433363B (en) | 2021-12-22 | Phosphogypsum organic carbon enrichment device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN114433363A true CN114433363A (en) | 2022-05-06 |
| CN114433363B CN114433363B (en) | 2024-04-19 |
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Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1063428A (en) * | 1991-01-25 | 1992-08-12 | 中南工业大学 | Be suitable for the flotation device of big and heavy mineral grain flotation |
| CN101081379A (en) * | 2007-06-27 | 2007-12-05 | 王树芳 | Novel technics of metallurgy mineral dressing flotation air inflation and special equipment |
| US20090288995A1 (en) * | 2006-07-12 | 2009-11-26 | Newcastle Innovation Limited | Flotation cell |
| EP3025787A1 (en) * | 2014-11-26 | 2016-06-01 | Parker Hannifin VAS Netherlands BV | Apparatus and process for moisture removal from oil |
| CN106475229A (en) * | 2016-10-25 | 2017-03-08 | 武汉工程大学 | Flotation is atomized chemicals dosing plant |
| CN106861926A (en) * | 2017-04-17 | 2017-06-20 | 李婷 | Hybrid mineral flotation machine |
| CN108325757A (en) * | 2018-04-12 | 2018-07-27 | 会理县财通铁钛有限责任公司 | A kind of flotation iron ore concentrate process units |
| CN109046069A (en) * | 2018-09-29 | 2018-12-21 | 贵州泽宇盛世机械有限公司 | A kind of Lubricating oil mixing device in being machined |
| CN110841584A (en) * | 2019-12-20 | 2020-02-28 | 攀钢集团矿业有限公司 | Flotation production line |
| CN210710786U (en) * | 2019-08-14 | 2020-06-09 | 湖北三宁碳磷基新材料产业技术研究院有限公司 | Phosphogypsum purification and impurity removal device |
| CN113117897A (en) * | 2021-05-21 | 2021-07-16 | 中国科学院过程工程研究所 | Stripping flotation device and method for removing impurity extraction agent and carbon-silicon impurities in phosphogypsum post-treatment process |
Patent Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1063428A (en) * | 1991-01-25 | 1992-08-12 | 中南工业大学 | Be suitable for the flotation device of big and heavy mineral grain flotation |
| US20090288995A1 (en) * | 2006-07-12 | 2009-11-26 | Newcastle Innovation Limited | Flotation cell |
| CN101081379A (en) * | 2007-06-27 | 2007-12-05 | 王树芳 | Novel technics of metallurgy mineral dressing flotation air inflation and special equipment |
| EP3025787A1 (en) * | 2014-11-26 | 2016-06-01 | Parker Hannifin VAS Netherlands BV | Apparatus and process for moisture removal from oil |
| CN106475229A (en) * | 2016-10-25 | 2017-03-08 | 武汉工程大学 | Flotation is atomized chemicals dosing plant |
| CN106861926A (en) * | 2017-04-17 | 2017-06-20 | 李婷 | Hybrid mineral flotation machine |
| CN108325757A (en) * | 2018-04-12 | 2018-07-27 | 会理县财通铁钛有限责任公司 | A kind of flotation iron ore concentrate process units |
| CN109046069A (en) * | 2018-09-29 | 2018-12-21 | 贵州泽宇盛世机械有限公司 | A kind of Lubricating oil mixing device in being machined |
| CN210710786U (en) * | 2019-08-14 | 2020-06-09 | 湖北三宁碳磷基新材料产业技术研究院有限公司 | Phosphogypsum purification and impurity removal device |
| CN110841584A (en) * | 2019-12-20 | 2020-02-28 | 攀钢集团矿业有限公司 | Flotation production line |
| CN113117897A (en) * | 2021-05-21 | 2021-07-16 | 中国科学院过程工程研究所 | Stripping flotation device and method for removing impurity extraction agent and carbon-silicon impurities in phosphogypsum post-treatment process |
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