CN113908594A - Tailing slurry precipitation separation and reconstruction method - Google Patents
Tailing slurry precipitation separation and reconstruction method Download PDFInfo
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- CN113908594A CN113908594A CN202111185095.5A CN202111185095A CN113908594A CN 113908594 A CN113908594 A CN 113908594A CN 202111185095 A CN202111185095 A CN 202111185095A CN 113908594 A CN113908594 A CN 113908594A
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- water
- slurry
- mixed gas
- tailing
- discharge pipe
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D21/00—Separation of suspended solid particles from liquids by sedimentation
- B01D21/0039—Settling tanks provided with contact surfaces, e.g. baffles, particles
- B01D21/0045—Plurality of essentially parallel plates
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D21/00—Separation of suspended solid particles from liquids by sedimentation
- B01D21/0039—Settling tanks provided with contact surfaces, e.g. baffles, particles
- B01D21/0048—Plurality of plates inclined in alternating directions
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D21/00—Separation of suspended solid particles from liquids by sedimentation
- B01D21/24—Feed or discharge mechanisms for settling tanks
- B01D21/2405—Feed mechanisms for settling tanks
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D21/00—Separation of suspended solid particles from liquids by sedimentation
- B01D21/24—Feed or discharge mechanisms for settling tanks
- B01D21/245—Discharge mechanisms for the sediments
Abstract
The invention discloses a tailing slurry precipitation separation and reconstruction method, which comprises the following steps: s1, conveying the tailing slurry to a settling sand silo for settling to realize the settling separation of tailing, slurry and water; s2: after the tailings and the slurry are precipitated and compacted, filling a gas-water mixture into the precipitated and compacted tailings and slurry to realize slurry reconstruction, so that the concentration of the reconstructed slurry reaches 65-75%. By adopting the tailing slurry precipitation separation and reconstruction method, the treatment cost of tailing slurry is saved, and the concentration uniformity of filling ore slurry is improved.
Description
Technical Field
The invention relates to the technical field of mining equipment, in particular to a tailing slurry precipitation separation and reconstruction method.
Background
In the technical field of mine tailing filling, the method relates to the steps of sand-water precipitation separation of tailing pulp, pulp reconstruction (the original tailing pulp is usually thinner, and the filling pulp needs a certain concentration) and the like, and in the prior art, the precipitation separation of the tailing pulp and the pulp reconstruction are usually carried out by adopting different devices, which is not beneficial to saving the treatment cost of the tailing pulp; in addition, the existing pulp reconstruction method has relatively poor concentration uniformity of finished pulp (filling pulp), which will affect the filling quality.
Disclosure of Invention
In view of the above, the present invention provides a tailing slurry precipitating, separating and regenerating method, so as to save the treatment cost of tailing slurry and improve the concentration uniformity of filling slurry.
The invention solves the problems through the following technical means:
a tailing slurry precipitating, separating and regenerating method comprises the following steps:
s1, conveying the tailing slurry to a settling sand silo for settling to realize the settling separation of tailing, slurry and water;
s2: after the tailings and the slurry are precipitated and compacted, filling a gas-water mixture into the precipitated and compacted tailings and slurry to realize slurry reconstruction, so that the concentration of the reconstructed slurry reaches 65-75%.
Furthermore, an ore pulp mud blocking plate is arranged at the top of the settling sand silo, a clear water overflow cofferdam is arranged above the ore pulp mud blocking plate, fine sand in the tailing pulp settling process is blocked by the ore pulp mud blocking plate and then is settled downwards, clear water in the tailing pulp settling process overflows to the clear water overflow cofferdam upwards, and then is discharged through an overflow drain pipe communicated with the clear water overflow cofferdam for recycling.
And further, before entering a settling sand silo for settling, the tailing slurry flows into an ore slurry settler for primary settling.
Further, the ore pulp settler is internally provided with ore pulp uniformly distributed cones.
Further, in step S2, inputting a gas-water mixture into the sand settling bin through a mixed gas water drum, where the mixed gas water drum is provided with an air inlet pipe and a water inlet pipe, the air inlet pipe and the water inlet pipe are respectively provided with an air inlet electromagnetic valve and a water inlet electromagnetic valve, the mixed gas water drum is communicated with the sand settling bin through a primary mixed gas-water discharge pipe, and the primary mixed gas-water discharge pipe is provided with a primary gas-water arch breaking electromagnetic valve and a primary check valve.
Furthermore, a mortar discharge pipe is arranged at the bottom of the settling sand bin, and a mortar discharge electromagnetic valve is arranged on the mortar discharge pipe.
Further, the ore pulp mud blocking plate comprises a first-level ore pulp mud blocking plate, a second-level ore pulp mud blocking plate and a third-level ore pulp mud blocking plate which are sequentially arranged from bottom to top.
Further, the mixed gas water drum is communicated with the settling sand bin through a second-stage mixed gas-water discharge pipe, and a second-stage gas-water arch breaking electromagnetic valve and a second-stage check valve are arranged on the second-stage mixed gas-water discharge pipe.
Further, the mixed gas water drum is communicated with the settling sand bin through a third-stage mixed gas-water discharge pipe, and a third-stage gas-water arch breaking electromagnetic valve and a third-stage check valve are arranged on the third-stage mixed gas-water discharge pipe.
Further, the bottom of the sand settling bin forms a funnel, and the primary mixed gas-water discharge pipe, the secondary mixed gas-water discharge pipe and the tertiary mixed gas-water discharge pipe all extend into the funnel.
The invention has the beneficial effects that:
the tailing slurry precipitating, separating and regenerating method comprises the following steps: s1, conveying the tailing slurry to a settling sand silo for settling to realize the settling separation of tailing, slurry and water; s2: after the tailings and the slurry are precipitated and compacted, filling a gas-water mixture into the precipitated and compacted tailings and slurry to realize slurry reconstruction, so that the concentration of the reconstructed slurry reaches 65-75%. By adopting the tailing slurry precipitation separation and reconstruction method, the treatment cost of tailing slurry is saved, and the concentration uniformity of filling ore slurry is improved. By adopting the tailing slurry precipitation separation and reconstruction method, the treatment cost of tailing slurry is saved, and the concentration uniformity of filling ore slurry is improved.
Drawings
The invention is further described below with reference to the figures and examples.
Fig. 1 is a schematic structural view of a preferred embodiment of the present invention.
Detailed Description
The invention will be described in detail below with reference to the accompanying drawings, as shown in fig. 1: the embodiment firstly discloses a tailing pulp precipitation separation and reconstruction integrated device, which comprises a sedimentation sand bin 9, a mixed gas water bag 12, an ore pulp mud blocking plate arranged at the top of the sedimentation sand bin, a clear water overflow cofferdam 7 arranged above the ore pulp mud blocking plate, an overflow drain pipe 8 communicated with the clear water overflow cofferdam, an ore pulp settler 3 penetrating through the ore pulp mud blocking plate and a tailing pulp conveying pipe 1 extending to the top of the ore pulp settler, wherein ore pulp uniformly distributed cones 2 are arranged in the ore pulp settler. In order to improve the effect of blocking the upward floating of silt, a first-level ore pulp mud blocking plate 4, a second-level ore pulp mud blocking plate 5 and a third-level ore pulp mud blocking plate 6 are sequentially arranged from bottom to top.
A funnel is formed at the bottom of the settling sand bin, a mortar discharge pipe 20 is arranged at the bottom of the funnel, and a mortar discharge electromagnetic valve 19 is arranged on the mortar discharge pipe; the gas mixture water drum is provided with intake pipe and inlet tube, be provided with air inlet solenoid valve 10 and water inlet solenoid valve 11 on intake pipe and the inlet tube respectively, come control compressed gas to the gas mixture water drum 12 air feed through air inlet solenoid valve 10, in addition, come control water pipe to supply water to gas mixture water drum 12 through water inlet solenoid valve 11.
The mixed gas water drum is communicated with the settling sand bin through a primary mixed gas-water discharge pipe, and a primary gas-water arch breaking electromagnetic valve 13 and a primary check valve 14 are arranged on the primary mixed gas-water discharge pipe.
During specific work, ore pulp (with relatively low concentration) after flotation in a non-ferrous metal mine concentrating mill is conveyed to the tops of the ore pulp uniformly-distributed cones 2 through the tailing pulp conveying pipe 1, the ore pulp with the concentration of 30% and water with the concentration of 70% are uniformly distributed in the ore pulp settler 3 through the ore pulp uniformly-distributed cones 2, and the ore pulp is uniformly and quickly settled in the ore pulp settler. The ore pulp can subside coarse sand about 24% through the ore pulp settler, and remaining mud about 6% passes through one-level ore pulp and hinders mud board 4, and second grade ore pulp hinders mud board 5 and tertiary ore pulp and hinders mud board 6, and first, second, tertiary ore pulp hinders mud board and utilizes different angle changes to make 6% superfine mud precipitate fast. About 70 percent of clean water overflows from the clean water overflow cofferdam 7 to the overflow drain pipe 8 and returns to the concentrating mill for recycling.
After all ore pulps are completely settled and separated, tailings and slurry are completely settled to a settling sand silo 9, after settlement and compaction, a primary air-water arch breaking electromagnetic valve and a primary check valve are opened, mixed air water is conveyed into the settling sand silo through a primary mixed air-water discharge pipe, and the mixed air water is mixed with the settled mortar to realize mortar reconstruction; stopping filling the gas-water mixture after the concentration of the slurry to be reproduced reaches the requirement (generally, the concentration is 70 percent and the water content is 30 percent); and opening the mortar discharging electromagnetic valve 19, and discharging the reconstructed slurry through a mortar discharging pipe 20.
As a further improvement of the technical scheme, the settling sand bin and the mixed gas water drum are communicated with a third-level mixed gas water discharge pipe through a second-level mixed gas water discharge pipe, a second-level gas water arch breaking electromagnetic valve 15 and a second-level check valve 16 are arranged on the second-level mixed gas water discharge pipe, a third-level gas water arch breaking electromagnetic valve 17 and a third-level check valve 18 are arranged on the third-level mixed gas water discharge pipe, and the first-level mixed gas water discharge pipe, the second-level mixed gas water discharge pipe and the third-level mixed gas water discharge pipe all extend into the funnel.
If the slurry making system can not meet the process requirements of slurry making efficiency and the like, the system can quickly and automatically open the secondary air-water arch breaking electromagnetic valve 15 and the secondary check valve 16 so as to improve the input efficiency of the air-water mixture; if the second-stage air-water arch breaking electromagnetic valve 15 breaks down, the third-stage air-water arch breaking electromagnetic valve and the third-stage check valve can be opened rapidly and automatically, and the high-efficiency operation of the whole system is ensured.
The embodiment also discloses a tailing slurry precipitation separation and reconstruction method, which comprises the following steps:
s1, conveying the tailing slurry to the slurry settler 3 for primary sedimentation through the tailing slurry conveying pipe 1, and allowing the ore slurry after primary sedimentation to flow downwards into the sedimentation sand bin 9 for secondary sedimentation to realize the sedimentation separation of tailing, slurry and water; an ore pulp mud blocking plate is arranged at the top of the sedimentation sand silo, a clear water overflow cofferdam 7 is arranged above the ore pulp mud blocking plate, fine sand in the tailing pulp sedimentation process is blocked by the ore pulp mud blocking plate and then is sedimentated downwards, clear water in the tailing pulp sedimentation process overflows to the clear water overflow cofferdam upwards, and then is discharged through an overflow discharge pipe 8 communicated with the clear water overflow cofferdam for recycling;
s2: after the tailings and the slurry are precipitated and compacted, filling a gas-water mixture into the precipitated and compacted tailings and slurry to realize slurry reconstruction, so that the concentration of the reconstructed slurry reaches 65-75%, preferably 70%, namely the water content is 30%. Specifically, a gas-water mixture is input into the settling sand bin 9 through a mixed gas water bag 12, the mixed gas water bag is provided with an air inlet pipe and a water inlet pipe, an air inlet electromagnetic valve 10 and a water inlet electromagnetic valve 11 are respectively arranged on the air inlet pipe and the water inlet pipe, the mixed gas water bag is communicated with the settling sand bin through a primary mixed gas-water discharge pipe, and a primary gas-water arch breaking electromagnetic valve 13 and a primary check valve 14 are arranged on the primary mixed gas-water discharge pipe.
S3: stopping filling the gas-water mixture after the concentration of the reconstructed slurry meets the requirement; and opening the mortar discharge electromagnetic valve 19, and discharging the reconstructed slurry through a mortar discharge pipe 20.
To sum up, the tailing pulp sedimentation separation and reconstruction method of the application, on the one hand, carries out the sedimentation and the reconstruction of the tailing pulp integrally together, saves the processing cost of the tailing pulp, improves the processing efficiency of the tailing pulp, and on the other hand, in the pulp reconstruction process, through filling gas, the gas can accelerate the disturbance of the pulp and improve the concentration uniformity of the filled pulp.
Finally, the above embodiments are only for illustrating the technical solutions of the present invention and not for limiting, although the present invention is described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that modifications or equivalent substitutions may be made on the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention, and all of them should be covered in the claims of the present invention.
Claims (10)
1. A tailing slurry precipitation separation and reconstruction method is characterized by comprising the following steps:
s1, conveying the tailing slurry to a settling sand silo for settling to realize the settling separation of tailing, slurry and water;
s2: after the tailings and the slurry are precipitated and compacted, filling a gas-water mixture into the precipitated and compacted tailings and slurry to realize slurry reconstruction, so that the concentration of the reconstructed slurry reaches 65-75%.
2. The tailing slurry precipitating separating and recreating method according to claim 1, characterized in that: the top of the sedimentation sand silo is provided with an ore pulp mud blocking plate, a clear water overflow cofferdam is arranged above the ore pulp mud blocking plate, fine sand in the tailing pulp sedimentation process is blocked by the ore pulp mud blocking plate and then is sedimentated downwards, clear water in the tailing pulp sedimentation process overflows to the clear water overflow cofferdam upwards, and then is discharged through an overflow drain pipe communicated with the clear water overflow cofferdam for recycling.
3. The tailing slurry precipitating separating and recreating method according to claim 1, characterized in that: before entering a settling sand silo to be settled, tailing slurry firstly flows into an ore slurry settler to be settled for the first stage.
4. The tailing slurry precipitating separating and recreating method according to claim 3, characterized in that: and ore pulp uniformly distributed cones are arranged in the ore pulp settler.
5. The tailing slurry precipitating separating and recreating method according to claim 1, characterized in that: in step S2, inputting a gas-water mixture into the settling sand bin through a mixed gas water bag, wherein the mixed gas water bag is provided with an air inlet pipe and an water inlet pipe, the air inlet pipe and the water inlet pipe are respectively provided with an air inlet electromagnetic valve and an water inlet electromagnetic valve, the mixed gas water bag is communicated with the settling sand bin through a primary mixed gas-water discharge pipe, and the primary mixed gas-water discharge pipe is provided with a primary gas-water arch breaking electromagnetic valve and a primary check valve.
6. The tailing slurry precipitating separating and recreating method according to claim 1, characterized in that: the bottom of the settling sand bin is provided with a mortar discharge pipe, and the mortar discharge pipe is provided with a mortar discharge electromagnetic valve.
7. The tailing slurry precipitating separating and recreating method according to claim 2, characterized in that: the ore pulp mud blocking plate comprises a first-level ore pulp mud blocking plate, a second-level ore pulp mud blocking plate and a third-level ore pulp mud blocking plate which are sequentially arranged from bottom to top.
8. The tailing slurry precipitating separating and regenerating process according to claim 5, characterized in that: the mixed gas water drum is communicated with the settling sand bin through a second-stage mixed gas-water discharge pipe, and a second-stage gas-water arch breaking electromagnetic valve and a second-stage check valve are arranged on the second-stage mixed gas-water discharge pipe.
9. The tailing slurry precipitating separating and recreating method according to claim 8, characterized in that: the mixed gas water drum is communicated with the settling sand bin through a third-stage mixed gas-water discharge pipe, and a third-stage gas-water arch breaking electromagnetic valve and a third-stage check valve are arranged on the third-stage mixed gas-water discharge pipe.
10. The tailing slurry precipitating separating and recreating method according to claim 9, characterized in that: the bottom of the settling sand bin forms a funnel, and the primary mixed gas-water discharge pipe, the secondary mixed gas-water discharge pipe and the tertiary mixed gas-water discharge pipe all extend into the funnel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111185095.5A CN113908594A (en) | 2021-10-12 | 2021-10-12 | Tailing slurry precipitation separation and reconstruction method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111185095.5A CN113908594A (en) | 2021-10-12 | 2021-10-12 | Tailing slurry precipitation separation and reconstruction method |
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| CN113908594A true CN113908594A (en) | 2022-01-11 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202111185095.5A Withdrawn CN113908594A (en) | 2021-10-12 | 2021-10-12 | Tailing slurry precipitation separation and reconstruction method |
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Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| AU4484393A (en) * | 1992-08-24 | 1994-03-03 | Flsmidth A/S | Process for treating a suspension of solid particles in a carrier liquid |
| US20010017161A1 (en) * | 1999-03-15 | 2001-08-30 | Alcan International Limited | Transfer of shear-thinning slurries |
| JP2012239944A (en) * | 2011-05-16 | 2012-12-10 | Yoshikazu Shoda | Centrifugal sedimentation and separation device |
| CN110152358A (en) * | 2019-05-23 | 2019-08-23 | 金诚信矿山工程设计院有限公司 | A kind of dense sand warehouse of depth cone for putting sand device with fluidisation |
| CN110152359A (en) * | 2019-05-23 | 2019-08-23 | 金诚信矿山工程设计院有限公司 | A kind of no rake selects the dense sand warehouse of tailing |
| CN209438127U (en) * | 2018-11-21 | 2019-09-27 | 武钢资源集团有限公司 | Ore pulp is unpowered deep wimble thickener |
| CN111603809A (en) * | 2020-07-01 | 2020-09-01 | 长沙矿山研究院有限责任公司 | Thickener and using method thereof |
-
2021
- 2021-10-12 CN CN202111185095.5A patent/CN113908594A/en not_active Withdrawn
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| AU4484393A (en) * | 1992-08-24 | 1994-03-03 | Flsmidth A/S | Process for treating a suspension of solid particles in a carrier liquid |
| US20010017161A1 (en) * | 1999-03-15 | 2001-08-30 | Alcan International Limited | Transfer of shear-thinning slurries |
| JP2012239944A (en) * | 2011-05-16 | 2012-12-10 | Yoshikazu Shoda | Centrifugal sedimentation and separation device |
| CN209438127U (en) * | 2018-11-21 | 2019-09-27 | 武钢资源集团有限公司 | Ore pulp is unpowered deep wimble thickener |
| CN110152358A (en) * | 2019-05-23 | 2019-08-23 | 金诚信矿山工程设计院有限公司 | A kind of dense sand warehouse of depth cone for putting sand device with fluidisation |
| CN110152359A (en) * | 2019-05-23 | 2019-08-23 | 金诚信矿山工程设计院有限公司 | A kind of no rake selects the dense sand warehouse of tailing |
| CN111603809A (en) * | 2020-07-01 | 2020-09-01 | 长沙矿山研究院有限责任公司 | Thickener and using method thereof |
Non-Patent Citations (1)
| Title |
|---|
| 玉溪大红山矿业有限公司: "《大红山铁矿开发的综合研究和实践 上卷》", 31 July 2017, 冶金工业出版社 * |
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Application publication date: 20220111 |
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