CN219672687U - Phosphate tailing treatment system - Google Patents

Phosphate tailing treatment system Download PDF

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Publication number
CN219672687U
CN219672687U CN202321030357.5U CN202321030357U CN219672687U CN 219672687 U CN219672687 U CN 219672687U CN 202321030357 U CN202321030357 U CN 202321030357U CN 219672687 U CN219672687 U CN 219672687U
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Prior art keywords
assembly
treatment system
mixing
tailings
phosphate
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CN202321030357.5U
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Inventor
刘洪章
刘用伦
刘法安
曾薇
谢世禄
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Shenzhen Batian Ecotypic Engineering Co Ltd
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Shenzhen Batian Ecotypic Engineering Co Ltd
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    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02WCLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
    • Y02W30/00Technologies for solid waste management
    • Y02W30/50Reuse, recycling or recovery technologies
    • Y02W30/91Use of waste materials as fillers for mortars or concrete

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  • Processing Of Solid Wastes (AREA)

Abstract

The utility model relates to the technical field of phosphate tailings, in particular to a phosphate tailing treatment system. The phosphate tailing treatment system comprises a tailing thickening assembly, a semi-hydrated phosphogypsum crushing and screening assembly, a gel-solid powder adding assembly, a mixing and stirring assembly, a pumping assembly and a filling pipeline assembly; the tailing thickening assembly, the gel powder adding assembly, the semi-hydrated phosphogypsum crushing and screening assembly and the gel powder adding assembly are respectively connected to the mixing and stirring assembly, the mixing and stirring assembly is connected to the pumping assembly, and the pumping assembly is connected to the filling pipeline assembly; the mixing and stirring assembly comprises a stirrer, wherein the stirrer is used for stirring and mixing high-concentration tailings transmitted from the tailings thickening assembly, glue powder transmitted from the glue powder adding assembly and phosphogypsum transmitted from the semi-hydrated phosphogypsum crushing and screening assembly, and the treated tailings can fill a mine goaf so as to achieve the effect of economically and efficiently treating the tailings.

Description

Phosphate tailing treatment system
Technical Field
The utility model relates to the technical field of phosphate tailings, in particular to a phosphate tailing treatment system.
Background
The phosphate tailings are solid wastes generated in the phosphate ore dressing process, the current phosphate tailings utilization rate is low, the number of the mine tailings is continuously increased along with the development of economy, a large amount of piled tailings cause a plurality of difficulties for mining industry, environment, economy and the like, the piled tailings occupy a large amount of land and can have adverse effects on the surrounding environment, and meanwhile, a large amount of hollow areas are left after mining is completed in a mining area, so that the danger of collapse or sliding exists.
In the current phosphate tailing treatment system, when filling slurry is conveyed, the risk that the filling slurry is diluted, the filling goaf with poor solidification effect is not compact, and when the filling slurry is concentrated, solidification can occur in the conveying process exists.
Therefore, the utility model provides a phosphate tailing treatment system.
Disclosure of Invention
In order to overcome the defects of the prior art, the utility model provides a phosphate tailing treatment system, which can fully mix tailings, phosphogypsum, silicate cement, yellow phosphorus slag and limestone by reasonably designing a tailings thickening assembly, a semi-hydrated phosphogypsum crushing and screening assembly, a gel powder adding assembly, a mixing and stirring assembly, a pumping assembly and a filling pipeline assembly, and fills a mine goaf to achieve the effect of economically and efficiently treating the tailings.
The technical scheme adopted for solving the technical problems is as follows:
the phosphate tailing treatment system comprises a tailing thickening assembly, a semi-hydrated phosphogypsum crushing and screening assembly, a gel powder adding assembly, a mixing and stirring assembly, a pumping assembly and a filling pipeline assembly;
the tailing thickening assembly, the gel powder adding assembly, the semi-hydrated phosphogypsum crushing and screening assembly and the gel powder adding assembly are respectively connected to the mixing and stirring assembly, the mixing and stirring assembly is connected to the pumping assembly, and the pumping assembly is connected to the filling pipeline assembly;
the tailing thickening assembly comprises a thickener;
the semi-hydrated phosphogypsum crushing and screening assembly comprises a crusher and a screening machine connected to the crusher;
the glue powder adding component comprises a glue powder bin and a feeder connected to the glue powder bin;
the mixing and stirring assembly comprises a stirrer, and the stirrer is used for stirring and mixing the high-concentration tailings transmitted from the tailings thickening assembly, the colloidal solid powder transmitted from the colloidal solid powder adding assembly and the semi-hydrated phosphogypsum transmitted from the semi-hydrated phosphogypsum crushing and screening assembly.
Preferably, the tailings densifying assembly further comprises a slurry pump connected to the densifier.
Preferably, the phosphogypsum crushing and screening assembly further comprises a breaking feeder connected to the screening machine.
Preferably, the first feeder comprises a star feeder and a screw weighing feeder connected to the star feeder.
Preferably, the glue solid powder bin is of a cylindrical closed bin body structure or a conical closed bin body structure, a nozzle is arranged at the bottom of the glue solid powder bin, and a dust remover is arranged at the top of the glue solid powder bin of the bin body structure.
Preferably, the glue powder in the glue powder bin comprises Portland cement, yellow phosphorus slag and limestone.
Preferably, the stirrer comprises a biaxial vane type high-speed stirrer and a biaxial low-speed spiral stirrer connected to the biaxial vane type high-speed stirrer.
Preferably, the pumping assembly comprises a booster pump and a pumping pipe connected with the booster pump, the booster pump is arranged on the pumping pipe, a feed inlet of the pumping pipe is connected to the mixing and stirring assembly, and a discharge outlet of the pumping pipe is connected to the filling pipeline assembly.
Preferably, the pumping assembly further comprises a straight flow tube connected to the thickener.
Preferably, the filling pipe assembly includes a main pipe provided at the quasi-transportation roadway to be provided at the goaf and a branch pipe having an end connected to the main pipe.
The beneficial effects of the utility model are as follows:
1. the utility model adopts a self-flowing mode to mix and convey low-concentration tailings, after the concentration of the low-concentration tailings is increased through a tailings thickening assembly, the low-concentration tailings and the sizing powder and phosphogypsum are stirred sequentially through a double-shaft vane type high-speed stirrer and a double-shaft low-speed spiral stirrer; meanwhile, materials are conveyed in a pump pressurizing mode, so that the materials can be effectively and rapidly conveyed to a designated area, and the filling of tailings is completed.
2. The phosphate tailing treatment system provided by the utility model has good workability and fluidity, has good conveying effect, and can rapidly fill tailings.
Drawings
The utility model will be further described with reference to the drawings and examples.
FIG. 1 is a schematic diagram of a frame structure of a phosphate tailing treatment system according to the present utility model;
FIG. 2 is a schematic diagram of the structure of a tailings densifying assembly in a phosphate tailings treatment system in accordance with the present utility model;
FIG. 3 is a schematic diagram of a semi-hydrated phosphogypsum crushing and screening assembly in a phosphate tailing treatment system in accordance with the present utility model;
FIG. 4 is a schematic structural view of a gel powder addition assembly in the phosphate tailing treatment system of the present utility model;
FIG. 5 is a schematic structural view of a mixing and stirring assembly in a phosphate tailing treatment system according to the present utility model;
FIG. 6 is a schematic view of the pumping assembly and fill pipe assembly of the phosphate tailings treatment system of the present utility model in operation;
FIG. 7 is a schematic diagram of a system for treating phosphate tailings according to the present utility model;
in the figure: 1. a tailings thickening assembly; 11. a thickener; 12. a slurry pump;
2. a semi-hydrated phosphogypsum crushing and screening assembly; 21. a crusher; 22. a sieving machine; 23. scattering a feeder;
3. a glue powder adding component; 31. a glue powder bin; 311. a nozzle; 312. a dust remover;
32. a first feeder; 321. a star feeder; 322. a screw weighing feeder;
4. a mixing and stirring assembly; 41. a stirrer; 411. a biaxial vane type high-speed stirrer; 412. a double-shaft low-speed spiral stirrer;
5. a pumping assembly; 51. a pressurizing pump; 52. a pumping tube; 53. a straight flow pipe;
6. filling the pipe assembly; 61. a main pipe; 62. and a branch pipe.
Detailed Description
The utility model will be further illustrated by the following examples, which are not intended to limit the scope of the utility model, in order to facilitate the understanding of those skilled in the art.
As used herein, "and/or" includes any and all combinations of one or more of the associated listed items. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the utility model. As used herein, the singular forms "a", "an", and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. It will be further understood that the terms "comprises" and/or "comprising," when used in this specification, specify the presence of stated features, integers, steps, operations, elements, and/or components, but do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components, and/or groups thereof.
The phosphate tailing treatment system shown in fig. 1 comprises a tailing thickening assembly 1, a semi-hydrated phosphogypsum crushing and screening assembly 2, a gel powder adding assembly 3, a mixing and stirring assembly 4, a pumping assembly 5 and a filling pipeline assembly 6;
the tailing thickening assembly 1, the gel powder adding assembly 3, the semi-hydrated phosphogypsum crushing and screening assembly 2 and the gel powder adding assembly 3 are respectively connected to the mixing and stirring assembly 4, the mixing and stirring assembly 4 is connected to the pumping assembly 5, and the pumping assembly 5 is connected to the filling pipeline assembly 6;
the tailing thickener assembly 1 comprises a thickener 11;
the semi-hydrated phosphogypsum crushing and screening assembly 2 comprises a crusher 21 and a screening machine 22 connected to the crusher 21;
the glue powder adding assembly 3 comprises a glue powder bin 31 and a first feeder 32 connected to the glue powder bin 31;
the mixing and stirring assembly 4 comprises a stirrer 41, and the stirrer 41 is used for stirring and mixing the high-concentration tailings conveyed from the tailings thickening assembly 1, the colloidal powder conveyed from the colloidal powder adding assembly 3 and the phosphogypsum conveyed from the semi-hydrated phosphogypsum crushing and screening assembly 2.
In one embodiment, as shown in fig. 1, the tailing thickener assembly 1 further comprises a slurry pump 12 connected to the thickener 11, wherein the slurry pump 12 pumps the high-concentration tailings processed by the thickener 11 to the mixing and stirring assembly 4, and a concentration meter and a flow meter are arranged on a pumping pipeline and are used for detecting the concentration and flow of the high-concentration tailings in a pumping pipeline 52.
Specifically, the thickener 11 is a deep cone thickener 11.
In one embodiment, as shown in fig. 3, the semi-hydrated phosphogypsum crushing and screening assembly 2 further comprises a breaking feeder 23 connected to the screening machine 22, and the breaking feeder 23 breaks up the screened semi-hydrated phosphogypsum and feeds the semi-hydrated phosphogypsum to the mixing and stirring assembly 4;
specifically, semi-hydrated phosphogypsum is transported to a filling station yard from other mining areas by adopting automobiles, the phosphogypsum is crushed (processed by a crusher 21) and sieved (processed by a sieving machine 22), then the phosphogypsum is fed to a scattering feeder 23 through a grab bucket, and after the scattering feeder 23 is used for scattering, the phosphogypsum is automatically metered by a belt electronic scale and directly fed into a mixing and stirring assembly 4.
In one embodiment, as shown in fig. 4, in the powder adding assembly 3, the first feeder 32 includes a star feeder 321 and a screw weigh feeder 322 connected to the star feeder 321, and the screw weigh feeder 322 is conveyed to the mixing and stirring assembly 4 by the screw conveyor.
Specifically, each gel powder bin 31 is provided with one YJD16 type star feeder, one LXC250 single tube screw weighing feeder 3221 and one LSY250 type screw conveyor 1. The star feeder and the single-tube screw weighing feeder 322 are provided with variable frequency speed regulation devices so as to regulate the feeding amount according to the requirement;
specifically, the glue powder bin 31 is of a cylindrical column-conical vertical closed or conical closed bin body structure, a nozzle 311 is arranged at the bottom of the glue powder bin 31, and arch breaking can be performed through the high-pressure air nozzle 311 to destroy a material arch possibly generated in the discharging process; meanwhile, when the glue powder is conveyed, in order to prevent dust in the bin from overflowing to affect the nearby environment, an HD single dust remover 312 is arranged at the top of the glue powder bin 31.
Specifically, the cement powder in the cement powder bin 31 adopts common 42.5 Portland cement, yellow phosphorus slag and limestone. Namely, the number of the cementing powder bins 31 is 3 independently, and 42.5 silicate cement, yellow phosphorus slag and limestone are respectively stored. The cement powder (ordinary 42.5 Portland cement, yellow phosphorus slag and limestone) in the cement powder bin 31 is conveyed to the mixing and stirring assembly 4 through a star feeder 321 and a screw weighing feeder 322.
More specifically, bulk yellow phosphorus slag is transported to a filling station by a tank truck, a vehicle-mounted air pump of the tank truck conveys the yellow phosphorus slag to a fly ash bin for storage, and a screw feeding and metering device at the bottom of the yellow phosphorus slag bin adds the yellow phosphorus slag to the stirrer 41.
Bulk lime powder is conveyed to a filling station by a tank truck, the lime powder is conveyed to a lime powder bin by a vehicle-mounted air pump of the tank truck for storage, and lime powder is added into the stirrer 41 by a spiral feeding and metering device at the bottom of the lime powder bin.
In one embodiment, as shown in FIG. 5, the mixer 41 in the mixing and stirring assembly 4 includes a dual-shaft blade high speed mixer 411 and a dual-shaft low speed helical mixer 412 connected to the dual-shaft blade high speed mixer 411.
The twin-shaft blade type high-speed mixer 411 mainly realizes mixing of materials. The dual-shaft low-speed spiral stirrer 412 mainly realizes stirring and conveying of materials, and is a dual-shaft spiral type, and the mixing and stirring assembly 4 can realize that the tail mortar discharged from the deep cone thickener 11 and the cementing material discharged from the cementing powder bin are fully stirred by the mixing and stirring assembly to form cementing slurry.
In one embodiment, as shown in fig. 6, the pumping assembly 5 comprises a booster pump 51 and a delivery pipe connected with the booster pump 51, the booster pump 51 is arranged on the pumping pipe 52, a feed inlet of the pumping pipe 52 is connected to the mixing and stirring assembly 4, and a discharge outlet of the pumping pipe 52 is connected to the filling pipe assembly 6;
specifically, when the concentration of the filler output by the dual-shaft low-speed screw mixer 41 is 70%, the filler is conveyed by a booster pump 51 (a pumping and pressurizing mode or other modes capable of realizing pressurized conveying when conveying materials in pipes), the conveying pipes are arranged along with a return air well and a horizontal conveying roadway, a blank tee joint is arranged every 100 m of the pipeline for fault dredging, and 1m of the pipeline is arranged 3 Left and right accommodating tanks.
Furthermore, the pumping assembly 5 comprises a straight flow pipe 53, the straight flow pipe 53 being connected to the thickener 11; the direct flow pipe 53 is used for automatically feeding the low concentration tailings of the beneficiation process to the thickener 11. Namely, the whole tailings discharged by the ore dressing process and with the mass concentration of 20-30% are subjected to sedimentation concentration by self-flowing to the thickener 11, and the concentration is about 40% of the mass concentration.
In one embodiment, as shown in fig. 6-7, the filling pipe assembly 6 includes a main pipe 61 provided in the quasi-haulage roadway to provide a branch pipe 62 provided in the goaf and connected end to the main pipe 61.
Specifically, the main pipe 61 is installed: the pipelines from the pump station to each layered sampling and accurate transportation roadway (including the sampling and accurate transportation roadway) are called a main pipe 61, and the main pipe 61 is made of polyurethane wear-resistant steel pipes in a flange plate bolt connection mode. And (5) the pipeline buttress is used outside the pit, and a wall anchor rod is adopted to support the pit.
Branch pipe 62 is installed: the pipeline of which the tail end is connected with the main pipe 61 to the goaf is called a branch pipe 62, a steel wire mesh skeleton macromolecular polyethylene pipe can be adopted to be connected with the main pipe 61 by adopting a reducing flange nipple, and the branch pipes 62 are connected by adopting flanges.
As shown in fig. 7, the whole tailings with the mass concentration of 20-30% discharged by the ore dressing process are automatically flowed (or automatically flowed and pumped) to a thickener for sedimentation and concentration to about 40% by mass concentration; and (3) crushing, screening and scattering the tailing slurry with the mass concentration of 40% by a semi-hydrated phosphogypsum crushing and screening assembly to obtain phosphogypsum, adding the treated cement powder (common 42.5 silicate cement, yellow phosphorus slag and limestone) in the assembly into the cement powder, sequentially stirring and mixing by a double-shaft blade type high-speed stirrer, stirring and conveying by a double-shaft low-speed spiral stirrer, conveying the mixed slurry to a main pipe and a branch pipe by a booster pump, and completing the filling process.
More specifically, through stirring and mixing at biax vane type high-speed mixer, realize the intensive mixing to tail sand thick liquids, phosphogypsum, glued solid powder, conveniently adjust the concentration of filler, again through biax low-speed helical mixer stirring and carrying for filler (thick liquids) conveying is more even, is difficult to deposit, and through pumping system, can carry the filler to appointed region fast, accomplish the filling process to the goaf.
The above embodiments are preferred embodiments of the present utility model, and besides, the present utility model may be implemented in other ways, and any obvious substitution is within the scope of the present utility model without departing from the concept of the present utility model.

Claims (10)

1. The phosphate tailing treatment system is characterized by comprising a tailing thickening assembly (1), a semi-hydrated phosphogypsum crushing and screening assembly (2), a gel powder adding assembly (3), a mixing and stirring assembly (4), a pumping assembly (5) and a filling pipeline assembly (6);
the device comprises a tailing thickening assembly (1), a gel powder adding assembly (3), a semi-hydrated phosphogypsum crushing and screening assembly (2) and the gel powder adding assembly (3), wherein the gel powder adding assembly (3) is respectively connected to a mixing and stirring assembly (4), the mixing and stirring assembly (4) is connected to a pumping assembly (5), and the pumping assembly (5) is connected to a filling pipeline assembly (6);
the tailing thickening assembly (1) comprises a thickener (11);
the semi-hydrated phosphogypsum crushing and screening assembly (2) comprises a crusher (21) and a screening machine (22) connected to the crusher (21);
the glue powder adding assembly (3) comprises a glue powder bin (31) and a first feeder (32) connected to the glue powder bin (31);
the mixing and stirring assembly (4) comprises a stirrer (41), and the stirrer (41) is used for stirring and mixing high-concentration tailings transmitted from the tailings thickening assembly (1), glue powder transmitted from the glue powder adding assembly (3) and phosphogypsum transmitted from the semi-hydrated phosphogypsum crushing and screening assembly (2).
2. A phosphate tailings treatment system according to claim 1, wherein the tailings thickening assembly (1) further comprises a slurry pump (12) connected to the thickener (11).
3. A phosphate tailings treatment system according to claim 1, wherein the semi-hydrated phosphogypsum crushing screen assembly (2) further comprises a break-up feeder (23) connected to the screen (22).
4. The phosphate tailings treatment system of claim 1, wherein the first feeder (32) comprises a star feeder (321) and a screw weighing feeder (322) coupled to the star feeder (321).
5. The phosphate tailing treatment system according to claim 1, wherein the gel-solid powder bin (31) is of a cylindrical closed bin body structure or a conical closed bin body structure, a nozzle (311) is arranged at the bottom of the gel-solid powder bin (31), and a dust remover (312) is arranged at the top of the bin body structure gel-solid powder bin (31).
6. The phosphate tailings treatment system of claim 1, wherein the cement powder in the cement powder bin (31) comprises portland cement, yellow phosphorus slag, and limestone.
7. The phosphate tailings treatment system of claim 1, wherein the agitator (41) comprises a dual-shaft blade high-speed agitator (411) and a dual-shaft low-speed helical agitator (412) connected to the dual-shaft blade high-speed agitator (411).
8. The phosphate tailing treatment system according to claim 1, wherein the pumping assembly (5) comprises a booster pump (51) and a pumping pipe (52) to which the booster pump (51) is connected, the pumping pipe (52) is provided with the booster pump (51), a feed inlet of the pumping pipe (52) is connected to the mixing and stirring assembly (4), and a discharge outlet of the pumping pipe (52) is connected to the filling pipe assembly (6).
9. A phosphate tailings treatment system according to claim 1, wherein the pumping assembly (5) further comprises a straight flow pipe (53), the straight flow pipe (53) being connected to the thickener (11).
10. A phosphate tailings treatment system according to claim 1, wherein the packing conduit assembly (6) comprises a main conduit (61) provided in the quasi-haulage roadway to provide a branch conduit (62) in the goaf and terminating in the main conduit (61).
CN202321030357.5U 2023-04-28 2023-04-28 Phosphate tailing treatment system Active CN219672687U (en)

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CN202321030357.5U CN219672687U (en) 2023-04-28 2023-04-28 Phosphate tailing treatment system

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Application Number Priority Date Filing Date Title
CN202321030357.5U CN219672687U (en) 2023-04-28 2023-04-28 Phosphate tailing treatment system

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CN219672687U true CN219672687U (en) 2023-09-12

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN120229934A (en) * 2025-06-03 2025-07-01 长沙矿山研究院有限责任公司 Preparation method and system of phosphorus tailings modified green backfill material

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN120229934A (en) * 2025-06-03 2025-07-01 长沙矿山研究院有限责任公司 Preparation method and system of phosphorus tailings modified green backfill material

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