CN1253247C - Method for removing iron tailings - Google Patents
Method for removing iron tailings Download PDFInfo
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- CN1253247C CN1253247C CN 01101401 CN01101401A CN1253247C CN 1253247 C CN1253247 C CN 1253247C CN 01101401 CN01101401 CN 01101401 CN 01101401 A CN01101401 A CN 01101401A CN 1253247 C CN1253247 C CN 1253247C
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- pontoon
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- excavating
- tailings
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Abstract
The present invention provides an iron tailing recovering and separating method. The present invention comprises the following steps: firstly, pontoon with corresponding capability is determined; secondly, the pontoon moves on the water surface of a trailing dam to excavate mine tailings in the trailing dam; thirdly, the excavated mine tailings are conveyed to an ore separating device connected with an excavation device; high-pressure water is used for flushing the excavated mine tailings, and the excavated mine tailings is stirred and conditioned; separation processing is carried out to the formed pulp, and discharge objects are discharged back into the trailing dam; refined ore selected by the separation processing is filtered, dewatered and collected. The present invention can realize continuous iron tailing recovery operation, increase recovery ratio, reduce cost and reduce environment pollution.
Description
The present invention relates to a kind of recovery method of iron tailings, more specifically, the present invention relates to a kind of method of utilizing pontoon back production ore-dressing technique to reclaim iron tailings.
Mineral resources are a kind of non-renewable resources, and in recent years, along with a large amount of exploitations of mineral resources, resource is dilution and exhaustion day by day.And mine tailing utilizes as secondary resource again, is subjected to people's general and great attention day by day.So reclaim the valuable constituent in the mine tailing to greatest extent, for making full use of mineral resources, the conservation of nature environment, and seek new growth engines for enterprise, all have active operation significance and far reaching significance.
Show China dam, iron tailings ore deposit that nearly over two hundred place can pending comprehensive recovery at present according to data.Its mine tailing memory space is all more than thousands of tons of, and some bigger iron and steel enterprises are because production scale is big, the production year limit for length, and the accumulation quantity of its mine tailing is more than several hundred million tons.By the full iron grade of general iron tailings 10%-20%, the visible value potentiality that wherein reclaim are big.
China still belongs to the country that iron resource comparatively lacks.Still have quite a few iron and steel enterprise need be at present from external imported iron ore stone.This has not only consumed the foreign exchange of a part of country undoubtedly, and has strengthened the production cost and the burden of enterprise.Yet,, certainly will alleviate the contradiction of present iron ore deposit supply-demand relationship anxiety if iron tailings can access comprehensive recovery and utilization.Because waste resource has obtained the secondary utilization, not only can turn waste into wealth, but also can reduce the harmful effect that environmental pollution brings simultaneously.
The technical people of not having who reclaims iron tailings in tailing dam uses at present.The objective of the invention is to adopt, optional equipment is connected as a single entity, form promptly adopt, i.e. choosing, disposable way of recycling, thereby form high efficiency, low energy consumption, fairly large and have a method of the back production iron tailings of corresponding economic benefit.
According to the present invention, a kind of back production beneficiation method of iron tailings is provided, may further comprise the steps:
A) determine the flat pontoon of respective capabilities;
B) flat then pontoon moves on the water surface of tailing dam and goes on board so that the CHARACTERISTICS OF TAILINGS SAND in the tailing dam is excavated;
C) subsequently with in the preparation equipment that the CHARACTERISTICS OF TAILINGS SAND of excavating is delivered to excavating equipment links to each other;
D) CHARACTERISTICS OF TAILINGS SAND of excavating with high pressure water washing and it is stirred and size mixing;
E) adopt one-level is roughly selected, secondary is selected magnetic separation mode to carry out ore dressing to formed ore pulp and handle, and will dump thing and flow back to tailing dam;
F) selected washed ore filters, processed to handling through ore dressing, and collects.
In the present invention, a kind of ship shape floating body of term " pontoon " expression, it can carry necessary equipment and flow process on the water surface of tailing dam, carry out the digging and the ore dressing work of CHARACTERISTICS OF TAILINGS SAND.
Iron tailings pontoon back production beneficiating method of the present invention has following advantage:
1. waste resource has obtained comprehensive recovery and secondary utilization;
2. process for stoping greatly reduces the concentration of floating of tailing dam owing to adopt pontoon, has protected atmospheric environment;
3. mine tailing sorts and does not add any medicament, environment is not caused secondary pollution;
The mine tailing recovery operation to the normal use of tailing dam and service life thereof all without any influence;
5. because all have the iron ore concentrate of some to be recovered every year, correspondingly increase the storage capacity of tailing dam, prolonged the floor space of mine tailing relatively.
Describe the course of work of the present invention in detail according to flow chart below.
Fig. 1 carries out of removal process for the present invention utilizes pontoon back production beneficiating method to iron tailings
Embodiment.
Primary content of the present invention is to adopt pontoon operation in order in tailing dam of respective capabilities according to the actual conditions of selected tailing dam, so that back production to greatest extent improves the rate of extraction, creates best economic and technical norms.Wherein pontoon operation in tailing dam with preset time and path.Mine tailing is being reclaimed in the operation, and production scale is decided by the back production ability of pontoon usually.The selection of pontoon back production ability is then generally determined according to the conditions such as depth capacity that the degree of depth, production scale and pontoon once can excavate of storing up of mine tailing in the tailing dam.This is known to those skilled in the art, just repeats no more at this.The hull of pontoon part is made of flatboat, is mainly used in carrying and is installed in equipment and steel superstructures such as various diggings on the pontoon, ore dressing, water supply, power supply.
The pontoon of respective capabilities is pulled in operation in order in the tailing dam by draw-gear then.In one embodiment of the invention, the mine tailing of adopting working face in the pond is excavated through the excavating equipment of pontoon front portion and is gone on board, and excavating equipment is made up of main drive, bucket, ladder and bucket chain etc., and the back production that is mainly used in ore in sand form is with industry.The ore in sand form of digging is fed to ore dressing and the supply equipment that directly links to each other with excavating equipment from excavating equipment, ore dressing and supply equipment be by being formed by ore deposit device, tank diameter, sieve bend, magnetic separator, conveying device and supply equipment etc., an operation such as be used to finish scouring to ore in sand form, stir, sort.Ore in sand form leaks into and stirs in the tank diameter of ore dressing and supply equipment and size mixing behind high pressure water washing.Reach certain density ore pulp through stirring then and enter beneficiation flowsheet by sieve bend.Usually the mine tailing produced by ore-sorting systems such as magnetic separation and calcining magnetic separation or gravity treatment, flotation of the preparation equipment mine tailing that enters tailing dam is formed.Comprise ferromagnetism iron mineral and weak magnetism mineral.The recycle object of pontoon is generally the ferromagnetism iron mineral in the present invention, adopts weak magnetic separation process usually.
According to the present invention, subsequently to carrying out ore dressing through the ore pulp that stirs and clean.Beneficiation flowsheet really rule according to the sorting test result of mineralogical composition, character and the flow process of mine tailing decision.According to different grade requirements, can adopt different beneficiation flowsheets.In the present invention embodiment shown in Figure 1, ore dressing process is the magnetic separation mode that one-level is roughly selected, secondary is selected.After promptly at first passing through the rough ore dressing of one-level, the mine tailing composition that some values are not high in the ore pulp is screened.Deliver to the selected magnetic plant of one-level through the ore pulp that one-level is roughly selected by the conveying device of ore dressing and supply equipment, dump thing and flow back to tailing dam by last person unit.Ore pulp through the selected magnetic separation of one-level passes through the smart magnetic separation of secondary more then, and the washed ore that finally obtains is met the demands.Be transported under the ship by the concentrate conveying equipment through selected concentrate, final washed ore is delivered to the appointed place and is stored.Wherein the concentrate conveying equipment mainly is made up of ore collecting box, sand pump and dedicated line thereof, and the fine ore that is used for going ashore is transported to the land filtration plant and carries out processed.
According to different requirements, can also adopt different mineral processing circuits, to meet the different needs.For example, ore dressing process can also adopt gravity treatment or flotation mode as the case may be except magnetic separation.The excavation mode can also adopt the mode of strand sucking pump strand suction except adopting bucket.
According to one embodiment of present invention, excavating equipment and preparation equipment all can be installed on same the pontoon, and interconnect.Also can be excavating equipment lay respectively on the different pontoons with preparation equipment but interconnect.Perhaps, excavating equipment is positioned on the pontoon and preparation equipment is installed on the ground but interconnected between the two.No matter adopt which kind of form, must guarantee has mutual annexation between excavating equipment and the preparation equipment, so that can in real time the mine tailing that excavates be handled immediately, thereby realizes continuous back production and the removal process of CHARACTERISTICS OF TAILINGS SAND.
Claims (4)
1. the recovery method of an iron tailings may further comprise the steps:
A) determine the flat pontoon of respective capabilities;
B) flat then pontoon moves on the water surface of tailing dam and goes on board so that the CHARACTERISTICS OF TAILINGS SAND in the tailing dam is excavated;
C) subsequently with in the preparation equipment that the CHARACTERISTICS OF TAILINGS SAND of excavating is delivered to excavating equipment links to each other;
D) CHARACTERISTICS OF TAILINGS SAND of excavating with high pressure water washing and it is stirred and size mixing;
E) adopt one-level is roughly selected, secondary is selected magnetic separation mode to carry out ore dressing to formed ore pulp and handle, and will dump thing and flow back to tailing dam;
F) selected washed ore filters, processed to handling through ore dressing, and collects.
2. the recovery method of iron tailings according to claim 1, it is characterized in that: excavating equipment and preparation equipment are positioned on same the pontoon and interconnect.
3. the recovery method of iron tailings according to claim 1, it is characterized in that: excavating equipment lays respectively on the different pontoons with preparation equipment and interconnects.
4. the recovery method of iron tailings according to claim 1, it is characterized in that: preparation equipment rest on the ground and excavating equipment is positioned on the pontoon and interconnects.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 01101401 CN1253247C (en) | 2001-01-16 | 2001-01-16 | Method for removing iron tailings |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 01101401 CN1253247C (en) | 2001-01-16 | 2001-01-16 | Method for removing iron tailings |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1365856A CN1365856A (en) | 2002-08-28 |
| CN1253247C true CN1253247C (en) | 2006-04-26 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 01101401 Expired - Fee Related CN1253247C (en) | 2001-01-16 | 2001-01-16 | Method for removing iron tailings |
Country Status (1)
| Country | Link |
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| CN (1) | CN1253247C (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1323762C (en) * | 2002-11-05 | 2007-07-04 | 长春天裕应用技术开发有限公司 | Method for recycling metal gangue in twisting and sucking mode and extraction boat for twisting and sucking metal gangue |
| CN106179738A (en) * | 2016-08-26 | 2016-12-07 | 中冶北方（大连）工程技术有限公司 | The ore-sorting system of a kind of iron content sea sand and ore-dressing technique |
| CN108339660B (en) * | 2017-01-21 | 2020-08-07 | 海南科矿建筑材料有限公司 | Method for recovering iron tailings |
| CN107233998A (en) * | 2017-07-05 | 2017-10-10 | 徐忠 | It is a kind of that Iron concentrate, the method for magnetic iron ore are extracted from tailings |
| CN108379925B (en) * | 2018-05-03 | 2021-08-13 | 长沙市岳麓区太空品牌策划服务部 | Non ferrous metal tailing recovery plant |
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2001
- 2001-01-16 CN CN 01101401 patent/CN1253247C/en not_active Expired - Fee Related
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| Publication number | Publication date |
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| CN1365856A (en) | 2002-08-28 |
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