CN101972695A - Ore crushing technique - Google Patents
Ore crushing technique Download PDFInfo
- Publication number
- CN101972695A CN101972695A CN2010102766089A CN201010276608A CN101972695A CN 101972695 A CN101972695 A CN 101972695A CN 2010102766089 A CN2010102766089 A CN 2010102766089A CN 201010276608 A CN201010276608 A CN 201010276608A CN 101972695 A CN101972695 A CN 101972695A
- Authority
- CN
- China
- Prior art keywords
- ore
- ore deposit
- muck
- sieve
- fine
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Images
Landscapes
- Disintegrating Or Milling (AREA)
Abstract
The invention discloses an ore crushing technique, comprising the following steps: carrying out coarse crushing on crude ore so as to obtain coarse crushed ore; utilizing dual-layer sieves to carry out two-stage sieving on the crude ore so as to obtain upper ore of the upper-layer sieve, upper ore of the lower-layer sieve and lower fine ore of the lower-layer sieve; carrying out intermediate crushing on the upper ore of the upper-layer sieve so as to obtain intermediate crushed ore; carrying out fine crushing on the upper ore of the lower-layer sieve; and returning and conveying the intermediate crushed ore and the fine crushed ore to the dual-layer sieves by a conveying machine to carry out sieving. According to the ore crushing technique, a device for implementing the technique has the advantages of simple structure, less equipment quantity, low cost and high efficiency.
Description
Technical field
The invention belongs to the technique of preparing field, especially relate to a kind of muck technology.
Background technology
In traditional ore-dressing technique, to pass through the multiple tracks fragmentation usually from the raw ore of mine extraction, carry out ore grinding and sorting again.Traditional muck technology is divided into several operations usually, in different factory buildings, carry out respectively, for example raw ore carries out coarse crushing by boulder crusher in the coarse crushing workshop, being transported to screen house then sieves, when the qualified grain size content in coarse crushing ore deposit more for a long time, be typically provided with two kinds of operations of prescreening and check screening, prescreening is adopted different screening machines usually with check screening.Prescreening is at first carried out in the coarse crushing ore deposit, during the ore deposit is transported on Shai the sieve in advance, workshop in small, broken bits is broken in being undertaken by intermediate crusher, middle muck returns the screening factory building and carries out check screening, during the ore deposit is transported on the sieve of test sieve, workshop in small, broken bits undertaken in small, broken bitsly by fine crusher, ore deposit in small, broken bits and middle muck merge the test sieve extension set that turns back to screen house.The ore deposit is transported to fine ore bin under the sieve told with test sieve of sieve in advance.
Tradition muck technology coarse crushing equipment, screening plant and in, equipment in small, broken bits need be installed in different workshops, so each stage product needs have bad luck between each workshop as required, reduced efficient, wasted the man power and material.And the table of equipment number is many, and the occupation of land space is big, and power consumption is big, and investment is high, the cost increase.
Summary of the invention
The present invention is intended to solve at least one of technical problem that exists in the prior art.
For this reason, one object of the present invention is to propose a kind of muck technology that space, energy-conservation, investment and cost reduce of saving.
Comprise according to the muck technology of the embodiment of the invention raw ore is carried out coarse crushing to obtain the coarse crushing ore deposit; Utilize double deck screen to carry out two-stage screening to obtain on ore deposit on the upper sieve, the lower screen fine ore under the ore deposit and lower screen respectively to rough; Broken during ore deposit on the upper sieve carried out to obtain middle muck; Ore deposit on the lower screen is carried out in small, broken bits to obtain ore deposit in small, broken bits; With being returned to be transported on the double deck screen by conveyer, middle muck and ore deposit in small, broken bits sieve.
According to the muck technology of the embodiment of the invention, promptly realized prescreening and two kinds of functions of check screening by the separate unit double deck screen, need not to transport, reduced the table of equipment number to greatest extent, saved the space, reduced energy consumption and cost.
In addition, ore crushing apparatus according to the above embodiment of the present invention can also have following additional technical feature:
Described raw ore carries out coarse crushing in mine.
Fine ore is fallen in the fine ore bin by deadweight from double deck screen under the described lower screen.Owing to adopted the configuration that double deck screen is placed the fine ore bin top, so the ore deposit can fall into directly in the fine ore bin under the lower screen, need not transportation, reduced cost.
Broken ore deposit surge bunker and the ore deposit surge bunker of giving in small, broken bits given in being respectively equipped with in the natural death angular zone of the top of fine ore in described fine ore bin, the broken ore deposit surge bunker of giving links to each other for the ore deposit surge bunker respectively to be used for that described upper sieve sieve is gone up the ore deposit and the lower screen sieve upward imports in intermediate crusher and the fine crusher in the ore deposit with in small, broken bits with intermediate crusher and fine crusher with double deck screen in described.
Thus, in the embodiment of reality of the present invention, fine ore bin with in brokenly give the ore deposit surge bunker and in small, broken bits to give ore deposit surge bunker three be one, in, fine crusher is disposed at the fine ore bin sidepiece in the open, adopt rock feeder will in upper sieve sieve in the broken surge bunker go up lower screen sieve in ore deposit and the surge bunker in small, broken bits go up the ore deposit directly feed respectively in, fine crusher, both reduced the quantity of conveyer, factory building in small, broken bits in need not again to build in addition.
Muck and ore deposit in small, broken bits are returned on the double deck screen by single ribbon conveyer and sieve in described.
Described rough granularity is less than 200 millimeters.
The granularity of described fine ore is less than 12 millimeters.
On the described upper sieve granularity in ore deposit greater than the granularity of 40 millimeters and middle muck less than 22 millimeters.
On the described lower screen granularity in ore deposit greater than the granularity in 12 millimeters and ore deposit in small, broken bits less than 12 millimeters.
The aperture of the upper strata sieve aperture of described double deck screen is that the aperture of 40 millimeters and lower floor's sieve aperture is 12 millimeters.
Description of drawings
Above-mentioned and/or additional aspect of the present invention and advantage are from obviously and easily understanding becoming the description of embodiment in conjunction with following accompanying drawing, wherein:
Fig. 1 is the flow chart of muck technology according to an embodiment of the invention; With
Fig. 2 is the schematic diagram of ore crushing apparatus that is used to implement muck technology according to the embodiment of the invention.
The specific embodiment
Describe embodiments of the invention below in detail, the example of described embodiment is shown in the drawings, and wherein identical from start to finish or similar label is represented identical or similar elements or the element with identical or similar functions.Below by the embodiment that is described with reference to the drawings is exemplary, only is used to explain the present invention, and can not be interpreted as limitation of the present invention.
In description of the invention, term " on ", close the orientation of indication such as D score or position is based on orientation shown in the drawings or position relation, only be the present invention for convenience of description rather than require the present invention therefore can not be interpreted as limitation of the present invention with specific orientation structure and operation.
In addition, it will be appreciated that, in the present invention, relative granularity after terms such as term " coarse crushing ", " in broken ", " in small, broken bits " are only represented between the ore to handle through different process, for example, by adjust implementing the parameter of these technology device therefors, just can regulate the granularity of " coarse crushing ", " in broken ", " in small, broken bits " representative.
The ore crushing apparatus that is used to implement muck technology according to the embodiment of the invention at first is described with reference to the drawings below.
As shown in Figure 2, ore crushing apparatus comprises boulder crusher 1, double deck screen 3, intermediate crusher 6, fine crusher 5, conveyer 7.
Boulder crusher 1 is used for raw ore is carried out coarse crushing, thereby obtains the coarse crushing ore deposit.In an example of the present invention, boulder crusher 1 can be arranged on the down-hole, thereby just the raw ore of extraction can be carried out coarse crushing in the down-hole.
It will be appreciated that in description of the invention, term " links to each other " and should do broad understanding, two equipment can directly connect by intermediate, mineral aggregate also can link to each other indirectly, as long as can just can be thought to link to each other with regard to these two equipment so from an equipment to another equipment.For example, double deck screen 3 links to each other with boulder crusher 1, can be the coarse crushing ore deposit of boulder crusher 1 coarse crushing to be transported to double deck screen 3 by conveyer, also can be transported to double deck screen 3 by other modes, for example automobile is transported to double deck screen 3 places, be transported on the double deck screen 3 by other modes, this can understand easily for those of ordinary skill in the art again.
As mentioned above, intermediate crusher 6 links to each other with double deck screen 3 respectively with fine crusher 5 also should do broad understanding, can be as long as the upper sieve sieve is gone up the ore deposit from just can to intermediate crusher 6 on the double deck screen 3, the lower screen sieve is gone up the ore deposit can be from just can to fine crusher 5 on the double deck screen 3, for example intermediate crusher 6 and fine crusher 5 can be from the double deck screen 3 respectively then the upper sieve sieve go up the ore deposit and the lower screen sieve is gone up the ore deposit, also can be by conveyor delivery to intermediate crusher 6 and fine crusher 5.
Particularly, intermediate crusher 6 and fine crusher 5 can be respectively gyratory crusher, and their gape size can be respectively 22 millimeters and 12 millimeters.
Conveyer 7 links to each other with the outlet of intermediate crusher 6 and fine crusher 5 respectively to be used for muck and ore deposit in small, broken bits returned and is transported to double deck screen 3, thereby has realized closed circuit muck.
Conveyer 7 for example can be ribbon conveyer, and middle muck that intermediate crusher 6 and fine crusher 5 produces and ore deposit in small, broken bits are returned by single ribbon conveyer and be transported to double deck screen 3 and sieve, and have saved conveyer thus, have reduced the equipment input, have saved construction cost.
In some embodiments of the invention, ore crushing apparatus further comprises fine ore bin 4, and fine ore bin 4 is arranged on double deck screen 3 belows, thus lower screen minus sieve ore deposit can fall in the fine ore bin 4 by deadweight, can save conveying device thus.Fine ore subsequent delivery in the fine ore bin 4 is carried out ball milling to ball mill.
Preferably, between boulder crusher 1 and double deck screen 3, be provided with coarse crushing ore deposit ore storage bin 2, be used for storing the coarse crushing ore deposit in coarse crushing ore deposit temporarily.
In a specific embodiment of the present invention, the aperture of the upper strata sieve aperture of double deck screen 3 is 40 millimeters, and the aperture of layer sieve aperture is 12 millimeters.But the present invention is not limited to this, and upper strata sieve aperture and lower floor's sieve aperture of double deck screen 3 can be regulated, and ability broken and in small, broken bits in can regulating effectively thus can realize how broken few mill thus, has reduced energy consumption, has improved efficient.
In some embodiments of the invention, as shown in Figure 2, in fine ore bin 4, because falling naturally of fine ore is tapered, around the top of fine ore bin 4, formed the natural death angular zone, in broken ore deposit surge bunker 42 and the ore deposit surge bunker 41 of giving in small, broken bits given can be arranged in the above-mentioned natural death angular zone.Upper sieve sieve is gone up ore deposit and lower screen sieve and is gone up that the ore deposit is therefrom broken respectively to be given ore deposit surge bunker 42 and in small, broken bitsly import on intermediate crusher 6 and the fine crusher 5 for ore deposit surge bunker 41 to carry out fragmentation, and breakdown products is fallen on the single ribbon conveyer 7 again, returns double deck screen 3.
Thus, fine ore bin 4, in brokenly give ore deposit surge bunker 42 and in small, broken bits to give ore deposit surge bunker 41 3 be one, reduced floor space.And, can be provided with in the open according to each processing apparatus of ore crushing apparatus of the embodiment of the invention, need not to build factory building, further reduced cost.
Below with reference to the flow process of Fig. 1 description according to the muck technology of the embodiment of the invention.
As shown in Figure 1, muck technology may further comprise the steps:
Raw ore is carried out coarse crushing to obtain the coarse crushing ore deposit, and for example the maximum particle size of raw ore is 800 millimeters, and the coarse crushing ore particle degree after the coarse crushing is below 200 millimeters.The coarse crushing of raw ore can utilize boulder crusher 1 to carry out under mine.
Utilize that 3 pairs of double deck screens are rough to carry out the two-stage screening to obtain on ore deposit on the upper sieve, the lower screen fine ore under the ore deposit and lower screen respectively.As implied above, in a specific embodiment, the aperture of the upper strata sieve aperture of double deck screen 3 can be 40 millimeters, the aperture of lower floor's sieve aperture can be 12 millimeters, therefore on the upper sieve granularity in ore deposit more than 40 millimeters, the granularity in ore deposit is between the 40-12 millimeter on the lower screen, and the granularity of fine ore is less than 12 millimeters under the lower screen.
Broken during ore deposit on the upper sieve carried out to obtain middle muck, for example utilize on 6 pairs of upper sieves of intermediate crusher the ore deposit broken in carrying out.
Ore deposit on the lower screen is carried out in small, broken bits, for example utilize on 5 pairs of upper sieves of fine crusher the ore deposit to carry out in small, broken bits to obtain ore deposit in small, broken bits.
Middle muck and ore deposit in small, broken bits are returned to be transported on the double deck screen 3 by ribbon conveyer 7 and are sieved.Ribbon conveyer 7 can be one, is used for carrying muck and ore deposit in small, broken bits simultaneously.
Fine ore under the lower screen that double deck screen 3 produces, for example granularity is fallen in the fine ore bin 4 by deadweight from double deck screen 3 less than 12 millimeters.Thus, can save fine ore is transported to conveying equipment in the fine ore bin 4.
In addition, broken ore deposit surge bunker 42 and the ore deposit surge bunker 41 of giving in small, broken bits given in fine ore bin 4, in the natural death angular zone of the top of fine ore, being respectively equipped with, in brokenly give ore deposit surge bunker 42 and in small, broken bitsly be respectively applied for to ore deposit surge bunker 41 ore deposit on ore deposit on the upper sieve and the lower screen is imported to respectively on intermediate crusher 6 and the fine crusher 5.
Muck flow process according to the embodiment of the invention, owing to used double deck screen 3 to sieve in advance and check screening, therefore reduced the table of equipment number, saved the space, investment and cost reduce, and can regulate by regulating upper strata sieve aperture and lower floor's sieve aperture, ability broken and in small, broken bits in can regulating effectively thus, can realize how broken few mill thus, reduce energy consumption, improve efficient.
In addition, by single ribbon conveyer middle muck and ore deposit in small, broken bits are returned and to be transported to double deck screen 3, formed closed circuit crushing technology, broken and in small, broken bitsly be closed circuit production promptly, and whole ore crushing apparatus has only adopted 2 strip-type conveyers, has saved the space to greatest extent, has reduced cost.And, fine ore, in broken ore deposit and the shared storehouse, ore deposit of giving in small, broken bits given, make Process configuration simpler.
In the description of this specification, reference term " embodiment ", " some embodiment ", " example " or " concrete example ", etc. description mean concrete feature, structure, material or the characteristics described in conjunction with this embodiment or example and be contained at least one embodiment of the present invention or the example.In this manual, the schematic statement to above-mentioned term not necessarily refers to identical embodiment or example.And concrete feature, structure, material or the characteristics of description can be with the suitable manner combination in any one or more embodiment or example.
Although illustrated and described embodiments of the invention, those having ordinary skill in the art will appreciate that: can carry out multiple variation, modification, replacement and modification to these embodiment under the situation that does not break away from principle of the present invention and aim, scope of the present invention is limited by claim and equivalent thereof.
Claims (10)
1. a muck technology is characterized in that, comprising:
Raw ore is carried out coarse crushing to obtain the coarse crushing ore deposit;
Utilize double deck screen to carry out two-stage screening to obtain on ore deposit on the upper sieve, the lower screen fine ore under the ore deposit and lower screen respectively to rough;
Broken during ore deposit on the upper sieve carried out to obtain middle muck;
Ore deposit on the lower screen is carried out in small, broken bits to obtain ore deposit in small, broken bits; With
Middle muck and ore deposit in small, broken bits returned to be transported on the double deck screen by conveyer sieve.
2. muck technology according to claim 1 is characterized in that, described raw ore carries out coarse crushing in mine.
3. muck technology according to claim 1 is characterized in that fine ore is fallen in the fine ore bin by deadweight from double deck screen under the described lower screen.
4. muck technology according to claim 3, it is characterized in that, broken ore deposit surge bunker and the ore deposit surge bunker of giving in small, broken bits given in being respectively equipped with in the natural death angular zone of the top of fine ore in described fine ore bin, the broken ore deposit surge bunker of giving links to each other for the ore deposit surge bunker respectively to be used for that described upper sieve sieve is gone up the ore deposit and the lower screen sieve upward imports in intermediate crusher and the fine crusher in the ore deposit with in small, broken bits with intermediate crusher and fine crusher with double deck screen in described.
5. according to each described muck technology among the claim 1-4, it is characterized in that described middle muck and ore deposit in small, broken bits are returned on the double deck screen by single ribbon conveyer sieves.
6. muck technology according to claim 1 is characterized in that, described rough granularity is less than 200 millimeters.
7. muck technology according to claim 1 is characterized in that the granularity of described fine ore is less than 12 millimeters.
8. muck technology according to claim 1 is characterized in that, on the described upper sieve granularity in ore deposit greater than the granularity of 40 millimeters and middle muck less than 22 millimeters.
9. muck technology according to claim 1 is characterized in that, on the described lower screen granularity in ore deposit greater than the granularity in 12 millimeters and ore deposit in small, broken bits less than 12 millimeters.
10. muck technology according to claim 1 is characterized in that, the aperture of the upper strata sieve aperture of described double deck screen is that the aperture of 40 millimeters and lower floor's sieve aperture is 12 millimeters.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010102766089A CN101972695A (en) | 2010-09-09 | 2010-09-09 | Ore crushing technique |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010102766089A CN101972695A (en) | 2010-09-09 | 2010-09-09 | Ore crushing technique |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101972695A true CN101972695A (en) | 2011-02-16 |
Family
ID=43572620
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010102766089A Pending CN101972695A (en) | 2010-09-09 | 2010-09-09 | Ore crushing technique |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101972695A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103293020A (en) * | 2012-03-05 | 2013-09-11 | 中国石油化工股份有限公司 | Step-by-step grading sampling method suitable for carbonatite sample |
| CN111686912A (en) * | 2020-06-29 | 2020-09-22 | 陕西冶金设计研究院有限公司 | Semi coke screening, crushing and grading process and device |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2868422Y (en) * | 2006-02-16 | 2007-02-14 | 中国恩菲工程技术有限公司 | Energy-saving disintegrating device |
| CN1943859A (en) * | 2006-10-27 | 2007-04-11 | 李宝成 | Sectional grading interlinked ore breaking method and its sectional grading interlinked conic crushing device |
| CN201291149Y (en) * | 2008-10-31 | 2009-08-19 | 鞍钢集团矿业公司 | Two-stage double closed circuit crushing screening facilites |
-
2010
- 2010-09-09 CN CN2010102766089A patent/CN101972695A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2868422Y (en) * | 2006-02-16 | 2007-02-14 | 中国恩菲工程技术有限公司 | Energy-saving disintegrating device |
| CN1943859A (en) * | 2006-10-27 | 2007-04-11 | 李宝成 | Sectional grading interlinked ore breaking method and its sectional grading interlinked conic crushing device |
| CN201291149Y (en) * | 2008-10-31 | 2009-08-19 | 鞍钢集团矿业公司 | Two-stage double closed circuit crushing screening facilites |
Non-Patent Citations (1)
| Title |
|---|
| 《有色矿山》 20030228 王少青等 尹格庄金矿2000t/d 改扩建工程设计总结 , 2 * |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103293020A (en) * | 2012-03-05 | 2013-09-11 | 中国石油化工股份有限公司 | Step-by-step grading sampling method suitable for carbonatite sample |
| CN103293020B (en) * | 2012-03-05 | 2016-01-06 | 中国石油化工股份有限公司 | A kind of substep classification sampling method being applicable to carbonate samples |
| CN111686912A (en) * | 2020-06-29 | 2020-09-22 | 陕西冶金设计研究院有限公司 | Semi coke screening, crushing and grading process and device |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101940972A (en) | Ore-crushing device | |
| CN105921246B (en) | A kind of Machine-made Sand production system and its production method | |
| CN104874459B (en) | Useless ore-dressing technique is thrown in a kind of low-grade magnetite pre-selection | |
| CN111111892A (en) | Mixing processing technology for magnetite crushing and preparation of sandstone aggregate from waste stone thereof | |
| CN212524447U (en) | Mixed processing system for magnetite crushing and sand aggregate preparation from waste rocks | |
| CN110681475A (en) | Crushing production line and method for processing high-quality sandstone aggregate based on hard rock | |
| CN201291149Y (en) | Two-stage double closed circuit crushing screening facilites | |
| CN205925925U (en) | Machine -made sand production system | |
| CN204602376U (en) | A kind of ore treatment device | |
| CN203620755U (en) | Phosphorite crushing device | |
| CN108940528A (en) | A kind of efficient ore reduction technique and its crushing system | |
| CN104549690A (en) | Ore grinding process | |
| CN108787134A (en) | A kind of production system and its production method for ore reduction and screening | |
| Jankovic | Developments in iron ore comminution and classification technologies | |
| CN103599888A (en) | Raw coal crushing and screening system | |
| CN104475214A (en) | Weathered ore-containing vanadium titano-magnetite pre-dressing technology | |
| CN207238203U (en) | A kind of Machine-made Sand production system | |
| CN111013698B (en) | Pretreatment process of low-grade vanadium titano-magnetite | |
| CN108787128A (en) | A kind of calcium carbide limestone crushing process | |
| CN201815358U (en) | Ore-crushing device | |
| CN205868519U (en) | Broken system is concentrated in ore dressing | |
| CN107262254A (en) | A kind of rock phosphate in powder closed cycle breaking method | |
| CN103357491A (en) | Automatic hard rock returning device with semi-automatic grinding machine | |
| CN101972695A (en) | Ore crushing technique | |
| CN213377131U (en) | Multipurpose aggregate crushing and screening production line |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C12 | Rejection of a patent application after its publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20110216 |