CN101705352A - Ore crushing method - Google Patents
Ore crushing method Download PDFInfo
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- CN101705352A CN101705352A CN200910044690A CN200910044690A CN101705352A CN 101705352 A CN101705352 A CN 101705352A CN 200910044690 A CN200910044690 A CN 200910044690A CN 200910044690 A CN200910044690 A CN 200910044690A CN 101705352 A CN101705352 A CN 101705352A
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- ore
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- pressure roller
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Abstract
An ore crushing method comprises that after the ore is subject to coarse crushing and intermediate crushing or solely coarse crushing, the granularity of the ore is smaller than 60mm, the ore directly enters into a high pressure roller mill for fine crushing, after fine crushing, the granularity of over 95% ore is smaller than3mm. The whole crushing method comprises the procedures of plough crushing and screening-free work; the invention saves civil engineering investment, simplifies procedures, greatly reduces the feeding granularity for sequent work ore grinding equipments, and reduces electricity consumption of ore grinding equipments and material consumption of steel balls.
Description
Technical field:
The present invention relates to ore reduction treatment process field, be specifically related to a kind of ore crushing method of energy efficient significantly.
Background technology:
In the raw material treating processes of ore,, its objective is in order to save energy consumption with the fundamental principle of how broken few mill as design.
But in traditional raw ore treatment process, three section one closed circuit crushing circuit of the many employings of ore less than 1000mm, less than two section one closed circuit flow process of the many employings of ore of 300mm, the ore grain size after the fragmentation is less than 20mm, and the raw ore processing after the fragmentation is finished by grinding attachment.The vibratory screening apparatuss that adopt as closed installation more in the ore reduction process, with the iron ore less than 500mm is example, its three section closed circuit is: iron ore through coarse crushing, in broken after, entering vibratory screening apparatus sieves, ore less than 10mm directly sifts out, and sieves and the ore that is not inconsistent Processing Criterion reenters vibratory screening apparatus after cone crusher is in small, broken bits.The power consumption of whole flow process is 5.2～6.6kw.h/t, and energy consumption is very big.
Summary of the invention:
Technical problem to be solved by this invention is: at above-mentioned the deficiencies in the prior art, provide a kind of ore crushing method of significantly energy efficient.
In order to solve the problems of the technologies described above, the technical solution adopted in the present invention is: a kind of ore crushing method, this method comprise provide through coarse crushing and in broken two-stage crushing or only after coarse crushing granularity be characterized in less than the ore of 60mm: described ore directly enters high-pressure roller mill and carries out in small, broken bits.
Above-mentioned ore back in small, broken bits granularity is less than 3mm.
Compared with prior art, the beneficial effect of breaking method of the present invention is:
1, whole breaking method flow process is open circuit crushing, no screening operation; Save construction investment, simplify flow process;
2, adopt high-pressure roller mill as equipment in small, broken bits, ore finished breaking granularity is less than 3mm, and broken qualification rate in small, broken bits reaches more than 95%;
3, reduced the feeding granularity of subsequent job grinding attachment widely, reduced the materials consumption of the power consumption and the steel ball of grinding attachment, total power consumption adds milling method than traditional fragmentation to be reduced more than 50%, and total traditional fragmentation of steel loss-rate adds milling method and reduces more than 40%.
4, this method is applicable to that raw ore contains mud, moisture low, the ore of mobile difference; The raw ore processing power is big, is particularly useful for large and medium-sized ore reduction field.
Embodiment:
Embodiment 1:
Be crushed to below the 300mm through coarse crushing less than the ore of 1000mm, broken operation in entering, be crushed to 60mm after, enter equipment high-pressure roller mill in small, broken bits, behind the high pressure roller mill crusher machine, ore grain size 95.5% is less than 3mm.Whole flow process power consumption is 4.35-7.12kw.h/t, saves 50% than three section one traditional closed circuit crushing flow process power consumption.
Embodiment 2:
Ore less than 300mm is crushed to below the 60mm through coarse crushing, enters equipment high-pressure roller mill in small, broken bits, and behind the high pressure roller mill crusher machine, ore grain size 96% is less than 3mm.Whole flow process power consumption is 2.55-4.92kw.h/t, saves 50% than two section one traditional closed circuit crushing flow process power consumption.
Claims (2)
1. ore crushing method, this method comprise provide through coarse crushing and in broken two-stage crushing or only after coarse crushing granularity it is characterized in that less than the ore of 60mm: described ore directly enters high-pressure roller mill and carries out in small, broken bits.
2. ore crushing method as claimed in claim 1 is characterized in that: the granularity after described ore is in small, broken bits is less than 3mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910044690A CN101705352A (en) | 2009-11-04 | 2009-11-04 | Ore crushing method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910044690A CN101705352A (en) | 2009-11-04 | 2009-11-04 | Ore crushing method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101705352A true CN101705352A (en) | 2010-05-12 |
Family
ID=42375604
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200910044690A Pending CN101705352A (en) | 2009-11-04 | 2009-11-04 | Ore crushing method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101705352A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102101068A (en) * | 2010-12-07 | 2011-06-22 | 东北大学 | Bauxite high-pressure roll-milling ultrafine grinding method |
| CN102247925A (en) * | 2011-05-19 | 2011-11-23 | 成都利君实业股份有限公司 | Flotation method of nonferrous metal ores |
| CN107530712A (en) * | 2015-02-13 | 2018-01-02 | 新钢铁再循环技术有限公司 | For the system and technique from iron content densification and half tight rock Dry recovery iron oxide powder |
-
2009
- 2009-11-04 CN CN200910044690A patent/CN101705352A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102101068A (en) * | 2010-12-07 | 2011-06-22 | 东北大学 | Bauxite high-pressure roll-milling ultrafine grinding method |
| CN102247925A (en) * | 2011-05-19 | 2011-11-23 | 成都利君实业股份有限公司 | Flotation method of nonferrous metal ores |
| CN102247925B (en) * | 2011-05-19 | 2014-02-12 | 成都利君实业股份有限公司 | Flotation method of nonferrous metal ores |
| CN107530712A (en) * | 2015-02-13 | 2018-01-02 | 新钢铁再循环技术有限公司 | For the system and technique from iron content densification and half tight rock Dry recovery iron oxide powder |
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Legal Events
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| PB01 | Publication | ||
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| C12 | Rejection of a patent application after its publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20100512 |