CN103691538B - A kind of grinding classification system of Ore - Google Patents

A kind of grinding classification system of Ore Download PDF

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Publication number
CN103691538B
CN103691538B CN201410013253.2A CN201410013253A CN103691538B CN 103691538 B CN103691538 B CN 103691538B CN 201410013253 A CN201410013253 A CN 201410013253A CN 103691538 B CN103691538 B CN 103691538B
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China
Prior art keywords
ore
cyclone
ball mill
pump
grinding
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CN201410013253.2A
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Chinese (zh)
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CN103691538A (en
Inventor
陶治其
隆贤辉
马钟瑞
秦定明
刘丽平
何仲生
黄志成
罗雪梅
青成树
刘卫昆
朱菱
刘东阳
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CHONGQING XICHANG MINING Co Ltd
Chongqing Iron and Steel Group Co Ltd
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CHONGQING XICHANG MINING Co Ltd
Chongqing Iron and Steel Group Co Ltd
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Abstract

The present invention relates to a kind of grinding classification system and the method for Ore, including ball mill, slime dam, pump and cyclone, described cyclone outlet end includes overfall and spigot, the described ball mill port of export connects with slime dam arrival end, the described slime dam port of export connects with pump intake end, described pump discharge end connects with cyclone inlet end, and described hydrocyclone sand mouth connects with ball mill arrival end;Ore enters and enters slime dam inside wet overflow type ball mill after ore grinding, and Pulp pump is again by pulp conveying to cyclone, and sand setting returns wet overflow type ball mill and continues ore grinding, and overflow pulp is overflowed from overfall.Grinding classification system of the present invention and method, ball mill ore grinding heel row ore particle degree 0.074mm content is less than 25%, improve the classification efficiency of cyclone, cyclone operating pressure is made to reduce, reduce the abrasion of pipeline and cyclone, reduce costs of production and operation, improve economic benefit, there is flowage structure simple, the feature of high efficiency.

Description

A kind of grinding classification system of Ore
Technical field
The present invention relates to a kind of solid material separation field, be specifically related to grinding classification system and the method for a kind of Ore.
Background technology
Grind grading is the core master operation in dressing Production Process, Grading Overflow granularity and sand return are than treating capacity and the key of sorting index when being to affect ball milling platform, classifying equipoment is the important component part of grinding system, and the height of classification efficiency then directly influences mog.
In prior art, vanadium titano-magnetite primary grinding classification mainly uses ball mill grader production technology: in this technique, the classification efficiency of grader is relatively low, only 20~40%, substantial amounts of valuable mineral mill overground, deficient is caused to exist, overflow granularity fluctuation is relatively big, and follow-up magnetic concentrate grade is relatively low, and equipment is heavy, floor space is big, and capital expenditure is bigger.This technique is suitable for separate unit Ball mill throughput less than 150t/h large-scale production line.
Summary of the invention
In view of this, it is an object of the invention to provide a kind of grinding classification system and the method for Ore, there is classification efficiency high, the reliable advantage of stable equipment operation.
The invention discloses the grinding classification system of a kind of Ore, including ball mill, slime dam, pump and cyclone, described cyclone outlet end includes overfall and spigot, the described ball mill port of export connects with slime dam arrival end, the described slime dam port of export connects with pump intake end, described pump discharge end connects with cyclone inlet end, and described hydrocyclone sand mouth connects with ball mill arrival end.
Further, described ball mill is wet overflow type ball mill.
Further, described pump is Pulp pump.
Further, described cyclone is Flat bottom swirler.
The invention also discloses a kind of grind grading method of Ore, Ore that granularity is-10mm is sent into ore grinding inside ball mill, after ore grinding, enters slime dam, then with pump by pulp conveying to cyclone classification, after cyclone classification, sand setting returns ball mill continuation ore grinding, and overflow pulp is overflowed from overfall.
Further, described ball mill ore milling concentration is 75%.
The beneficial effects of the present invention is: the grinding classification system of a kind of Ore of the present invention and method, ball mill ore grinding heel row ore particle degree-0.074mm content is less than 25%, improve the classification efficiency of cyclone, cyclone operating pressure is made to reduce, reduce the abrasion of pipeline and cyclone, reduce costs of production and operation, improve economic benefit, there is flowage structure simple, the feature of high efficiency.
Accompanying drawing explanation
In order to make the purpose of invention, technical scheme and advantage clearer, below in conjunction with accompanying drawing, the present invention is described in further detail, wherein:
Fig. 1 is the technology arrangement figure of the present invention.
Detailed description of the invention
Below the preferred embodiments of the present invention are described in detail.
As it can be seen, the system of the grind grading of a kind of Ore of the present invention, including ball mill 1, slime dam 2, pump 3 and cyclone 4, in the present embodiment, described ball mill 1 is wet overflow type ball mill, and described pump 3 is Pulp pump, and described cyclone 4 is Flat bottom swirler;Described cyclone 4 port of export includes overfall 4a and spigot 4b, described ball mill 1 port of export connects with slime dam 2 arrival end, described slime dam 2 port of export connects with pump 3 arrival end, described pump 3 port of export connects with cyclone 4 arrival end, and described hydrocyclone sand mouth 4b connects with ball mill 1 arrival end.Ore pulp after ball mill 1 ore grinding enters in cyclone 4, and through cyclone 4 classification, overfall 4a output ore pulp carries out next link process, and sand setting returns ball mill 1 by spigot 4b and repeats to process.
Use the grinding classification system method for grind grading of a kind of Ore of the present invention, granularity is to carry out ore grinding inside the Ore entrance ball mill 1 of-10mm, ore milling concentration is 75%, after ore grinding, ore grain size accounts for 13% for-0.074mm, after ore grinding, ore pulp enters slime dam 2, use pump 3 by pulp conveying to cyclone 4 classification again, after cyclone 4 classification, sand setting returns ball mill continuation ore grinding, overflow pulp is overflowed from overfall 4a, in overflow pulp, ore grain size accounts for 30% for-0.074mm, and in sand setting, ore grain size accounts for 3% for-0.074mm.Classification matter efficiency of the present invention is more than 55%, and circulating load is less than 200%.
Finally illustrate is, above example is only in order to illustrate technical scheme and unrestricted, although by referring to the preferred embodiments of the present invention, invention has been described, but it will be understood by those within the art that, in the form and details it can be made various change, the spirit and scope of the present invention limited without departing from appended claims.

Claims (1)

1. the grinding classification system of an Ore, it is characterised in that: include ball mill (1), slime dam (2), Pump (3) and cyclone (4), described cyclone (4) port of export includes overfall (4a) and spigot (4b), Described ball mill (1) port of export connects with slime dam (2) arrival end, described slime dam (2) port of export with Pump (3) arrival end connects, and described pump (3) port of export connects with cyclone (4) arrival end, described eddy flow Device (4) spigot (4b) connects with ball mill (1) arrival end;Described ball mill (1) is wet type overflow Type ball mill;Described pump (3) is Pulp pump;Described cyclone (4) is Flat bottom swirler;Described ball milling Machine (1) ore milling concentration is 75%;The ore grain size sending into ball mill (1) the inside ore grinding is-10mm;Ore grinding Rear ore grain size accounts for 13% for-0.074mm;After ore grinding, ore pulp enters slime dam (2), then with pump (3) by ore deposit Slurry is delivered to cyclone (4) classification, and after cyclone (4) classification, sand setting returns ball mill (1) continuation ore grinding, Overflow pulp is overflowed from overfall (4a);In overflow pulp, ore grain size accounts for 30% for-0.074mm, sand setting Middle ore grain size accounts for 3% for-0.074mm.
CN201410013253.2A 2014-01-10 2014-01-10 A kind of grinding classification system of Ore Active CN103691538B (en)

Priority Applications (1)

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Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103962212B (en) * 2014-04-28 2016-05-11 浙江凯色丽科技发展有限公司 Water under high pressure mica disintegrating mechanism
CN105327764A (en) * 2015-12-04 2016-02-17 云南锡业股份有限公司卡房分公司 Copper-sulfur bulk concentrate ore grinding process combining small steel forging ratio with long conical cyclone
CN108187878B (en) * 2017-12-29 2021-02-02 中业纳米科技(烟台)有限公司 One-section semi-closed-circuit ore grinding and grading process
CN110252489B (en) * 2019-06-04 2021-01-05 甘肃酒钢集团宏兴钢铁股份有限公司 High-efficiency low-energy-consumption grading grinding method

Citations (5)

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CN1962072A (en) * 2006-11-24 2007-05-16 辽宁科技大学 Closed circuit grinding classification system consisting of cyclone and grate discharge ball mill
CN200945461Y (en) * 2006-05-24 2007-09-12 威海市海王旋流器有限公司 Flat bottom swirler
CN101974694A (en) * 2010-05-12 2011-02-16 黄石大江集团有限公司 Production method for recovering metal copper from water granulated slag of copper smelting furnaces
CN103100475A (en) * 2013-02-05 2013-05-15 玉溪大红山矿业有限公司 High-efficiency concentrate ore pulp processing device suitable for long-distance pipeline transportation
CN103394404A (en) * 2013-08-15 2013-11-20 太原钢铁(集团)有限公司 Ore grinding classification equipment

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CN1730154A (en) * 2005-08-12 2006-02-08 贵阳铝镁设计研究院 Grind grading technique for aluminum oxide raw material - monohydrallite
RS52399B (en) * 2008-08-13 2013-02-28 Milorad prof. dr. GRUJIĆ Ball mill for grinding mineral raw materials
CN102580843A (en) * 2012-02-22 2012-07-18 攀钢集团矿业有限公司 Mineral separation method for vanadium-titanium magnetite ores
CN202823555U (en) * 2012-09-07 2013-03-27 白银有色集团股份有限公司 Lead-zinc crude concentrate regrinding system
CN103056020A (en) * 2013-01-11 2013-04-24 武汉理工大学 Maximum optional size grading process for beneficiation and grinding

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN200945461Y (en) * 2006-05-24 2007-09-12 威海市海王旋流器有限公司 Flat bottom swirler
CN1962072A (en) * 2006-11-24 2007-05-16 辽宁科技大学 Closed circuit grinding classification system consisting of cyclone and grate discharge ball mill
CN101974694A (en) * 2010-05-12 2011-02-16 黄石大江集团有限公司 Production method for recovering metal copper from water granulated slag of copper smelting furnaces
CN103100475A (en) * 2013-02-05 2013-05-15 玉溪大红山矿业有限公司 High-efficiency concentrate ore pulp processing device suitable for long-distance pipeline transportation
CN103394404A (en) * 2013-08-15 2013-11-20 太原钢铁(集团)有限公司 Ore grinding classification equipment

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Inventor after: Tao Zhiqi

Inventor after: Liu Weikun

Inventor after: Zhu Ling

Inventor after: Liu Dongyang

Inventor after: Long Xianhui

Inventor after: Ma Zhongrui

Inventor after: Qin Dingming

Inventor after: Liu Liping

Inventor after: He Zhongsheng

Inventor after: Huang Zhicheng

Inventor after: Luo Xuemei

Inventor after: Qing Chengshu

Inventor before: Tao Zhiqi

Inventor before: Liu Weikun

Inventor before: Zhu Ling

Inventor before: Liu Dongyang

Inventor before: Long Xianhui

Inventor before: Ma Zhongrui

Inventor before: Qin Dingming

Inventor before: Liu Liping

Inventor before: He Zhongsheng

Inventor before: Huang Zhicheng

Inventor before: Luo Xuemei

Inventor before: Qing Chengshu

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Application publication date: 20140402

Assignee: Chongqing Xichang Mining Co., Ltd.

Assignor: Chongqing Iron &. Steel (Group) Corp., Ltd.

Contract record no.: 2017990000055

Denomination of invention: Ore grinding and classifying system and method

Granted publication date: 20160817

License type: Exclusive License

Record date: 20170216

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