CN1943859A - Sectional grading interlinked ore breaking method and its sectional grading interlinked conic crushing device - Google Patents
Sectional grading interlinked ore breaking method and its sectional grading interlinked conic crushing device Download PDFInfo
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Abstract
The present invention relates to ore breaking technology, and is especially one sectional cascade ore breaking method and ore crushing apparatus. The ore crushing apparatus consists of two or three cascade ore crushers, each of which includes one ore feeder, one ore crushing mechanism comprising two or three ore crushing sections and sieves between ore crushing sections, and one ore discharger. In the first ore crushing section, new movable cone and static cone are mounted, while in the subsequent ore crushing sections, used movable cone and static cone are mounted. The present invention has reduced movable cone and static cone consumption, well matching between the meshing angle and ore size, raised ore breaking and small size of crushed ore.
Description
Technical field
The present invention relates to the ore breaking method technical field, a chain of conic crushing device of particularly a kind of sectional cascade ore breaking method and sectional grading thereof.
Background technology
Three ore crushing sections that existing broken ore deposit is divided into three grades of coarse broken, the broken, thin broken fall, each section all is the disintegrating machine that adopts dissimilar different sizes, no longer divides grade and paragraph in each section, and new and old cone does not use respectively, one cone, one machine, disposable using scrapped after new cone was installed.It is very fast that the fragmentation cone of thin broken machine belongs to the consumable accessory wearing and tearing, and new broken cone installation and operation is after a period of time, and two taper thread grindings decrease gape and increase, especially the bottom wearing and tearing of two cones are very fast, especially serious near the gape place, its ip angle is reduced, gape increases, ore passes through easily, although productivity ratio increases,, the ratio of reduction reduces, ore size increases, and does not satisfy the requirement of technical process.In order to guarantee reducing of ore size, carry out cone adjusting and dwindle gape, but broken chamber, ore deposit and ore inlet port also to dwindle thereupon, the granularity of accepting breaking ores also reduces.So repeatedly carry out cone adjusting repeatedly and handle, ip angle is more and more littler, and broken chamber, ore deposit and ore inlet port are also more and more littler thereupon, and the granularity of accepting breaking ores is also more and more littler, has arrived the limit until cone adjusting, and old awl is scrapped and more renewed awl.About ten days transducer set cones of a disintegrating machine, 1 year needs changes 36.5 and overlaps cone, supposes 50,000 yuan of cover cones, and 36.5 covers are bored 182.5 ten thousand yuan and are squeezed into broken cost.
Summary of the invention
The objective of the invention is three ore crushing sections in three grades of existing coarse broken, the broken, thin broken and fall on the basis, for providing a kind of sectional cascade ore breaking method and sectional grading thereof a chain of conic crushing device in a certain paragraph.According to the difference and the different characteristics of new, old two awls,, they are carried out " by the broken ore deposit of grade professional division counterpart " with a chain of use the on the disintegrating machine of two same specifications of the same type before and after newly awl and old awl segmentation are installed in respectively.Giving full play to the ore size thickness chief implementation separately of new awl and old awl has complementary functions, improve broken ore deposit efficient and effect, and, can also prolong the service life of two awls, especially to the existing mantle of scrapping with decide awl and can be installed in meticulous reduction stage and use thoroughly and scrap, accomplish to make the best use of everything, reduce the two awl consumptions in year.
The objective of the invention is to realize by following technical proposals:
According to sectional cascade ore breaking method of the present invention, it is characterized in that adopting gyratory crusher, existing thick breaking, in broken, three ore crushing sections of three grades of thin broken fall on the basis, be divided into 2-3 broken ore deposit flow process section for the thin broken section, each broken ore deposit flow process section is by the mine-feeding equipment that mutually continues, broken ore deposit device and ore discharge device form, between each broken ore deposit flow process section, be provided with screening machine, the mantle of the broken ore deposit device of first paragraph and fixed cone adopt new part, mantle in the ore crushing section and the fixed employing broken ore deposit the last period device of boring are scrapped the mantle of rear recovery and are decided cone with crossing subsequently, first pass Duan Weichu thin broken, the broken middle lump ore stone of giving in the acceptance, the second flow process section or second, the 3rd flow process section is installed old cone, cry meticulous broken, accept the fritter ore that first thin broken is given, establish screening between them, that is: first paragraph is just given screening behind the thin broken ore deposit, ball milling is given in the lower ore deposit of sieve, and the ore deposit gives subsequent segment meticulous broken on the sieve.
The last period, mantle and the fixed cone of disintegrating machine were installed and used with fixed cone transposing with the mantle of rear one section disintegrating machine, new tapered sleeve ip angle is got maximum and is advisable in effective range, gape is got minimum of a value in effective range, suitably increase by two cone tapered sleeve thickness, especially increases the thickness of tapered sleeve bottom.
Described broken ore deposit flow process section is 2 grade sections, namely the disintegrating machine by two same type same sizes forms a broken chain of rings, i.e. crushing circuit, first grade Duan Weichu thin broken grade section and second grade section are meticulous broken grade section, just thin broken grade section adopts new cone, the journey setting width dimensions that closes of its gape is: the mantle of the new cone regulation that disintegrating machine is installed and fixed gape minimum width dimension of boring, meticulous broken grade section adopts first thin broken grade section to use about fifty percent old cone about new, and the journey of closing of its gape is set up width dimensions and is: about fifty percent the mantle and the minimum width dimension of surely boring gape about new that disintegrating machine is installed.
Described broken ore deposit flow process section is 3 grade sections, namely the disintegrating machine by 3 same type same sizes forms a broken chain of rings, i.e. crushing circuit, thin broken grade section is divided into three grade sections, first grade Duan Weichu thin broken grade section, second grade section is thin broken grade section, the 3rd grade section is meticulous broken grade section, just thin broken grade section adopts new cone, the journey setting width dimensions that closes of its gape is: the mantle and the minimum width dimension of surely boring gape of the new cone regulation that disintegrating machine is installed, thin broken grade section adopts that first thin broken grade section use about 6.6 one-tenth about newly mantle and decide cone, the journey of closing of its gape is set up width dimensions and is: the minimum width dimension of gape when wearing up to about 6.6 one-tenth new left and right sides by the mantle of disintegrating machine with fixed cone use, meticulous broken grade section adopts that thin broken grade section use about 3.3 one-tenths about new mantle and decide cone, the journey of closing of its gape is set up width dimensions and is: the minimum width dimension of the mantle of press disintegrating machine gape when deciding to bore use and wear and tear about 3.3 one-tenth new left and right sides.
Three grades of a chain of crushing circuits of described flow process Duan Weisan section: give release grinding machine in ore deposit under the sieve that section broken ore deposit, section broken ore deposit-three, three sections broken ore deposits-three returns first screening machine-first screening machine and second screening machine for ore deposit on the sieve that the broken section broken ore deposit, ore deposit-two of two sections broken ore deposit machines gives second screening machine-second screening machine screening-the second screening machine for ore deposit on first screening machine-first screening machine screening-the first sifted for the broken ore deposit-of ore deposit-a section broken ore deposit machine section ore discharge for one section.
The a chain of broken flow processs of three grades of ability of swimmings of described flow process Duan Weisan section: arrange for ore deposit, the broken section ore discharge-Duan Shui ore deposit, ore deposit-of feedwater-a section broken ore deposit machine to arrange to arrange to the second blow tank-discharges mineral water to the broken ore deposit-two of two sections broken ore deposit machines section-two sections broken mineral water ores of feedwater to ore deposit on the first screening machine-first screening machine screening the-the first sifted to the first blow tank-water ore for one section and arrange to the broken ore deposit of the 3rd blow tank-the 3rd blow tank and return release grinding machine in ore deposit under the sieve of the first screening machine-first screening machine and the second screening machine to-three sections draining ore deposits of section feeding water, the broken section broken ore deposit-three, ore deposit-three of three sections broken ore deposit machines to ore deposit on the second screening machine-second screening machine screening the-the second sifted.
A kind of disintegrating apparatus that is used for described sectional cascade ore breaking method, described disintegrating apparatus is selected the ability of swimming gyratory crusher for use: the feeding mouth place at conventional gyratory crusher sets up flow pipe, the disintegrating machine top is given under the inclined-pipe hopper of ore deposit and is connect an elongated segment pipe, a canvas is established in mantle lower edge at disintegrating machine, unload the ore deposit inclined-pipe hopper at disintegrating machine and divide into a blow tank, be provided with mineral aggregate lifting device and overflow mechanism in list is poor.
When suitably increasing by two cone tapered sleeve thickness, establish inverted steps shape step on the broken surface, ore deposit of two cone tapered sleeves, form the ladder ip angle, each has a bank above the ladder ip angle.Be used for to stop ore upwards to be beated, the degree that ore is upwards beated weakens or disappears, reduces the ore deposit to the wearing and tearing on the broken surface, ore deposit of two cone tapered sleeves, the friction between the increase ore and grind stripping.After ladder polishes, be classified as the in advance broken surface, ore deposit of two cone tapered sleeves and ip angle form, also can continue to use until scrap.
Segmentation in a chain of crush method of sectional grading, be existing a certain section again by the particle size fraction section of being divided into.After the chain of rings is meant existing a certain paragraph is divided into paragraph by particle size fraction again, adopt the disintegrating machine of the same type same size of a certain section existing level, new and old awl is installed in respectively on separately the disintegrating machine, and the two machine chains of rings break the ore deposit by the section level, mainly are applicable to the thin broken technology to ore.
New cone is different with the ip angle of old cone; The granularity in both broken ore deposits is also different with the uniformity; Both broken ore deposits are than also different; The situation that ore is upwards beated during both broken ore deposits is also different with degree; The broken ore deposit efficient that both adapt to ore size is also different.Under the certain situation of impulse stroke and gape, new awl ip angle is bigger, the granularity of accepting breaking ores is also bigger, the ratio of reduction is also bigger, ore is easily upwards beated when breaking ores, especially broken situation of upwards beating than the fine grained ore is active relatively, broken relatively just lower than fine grained ore efficient, and new tapered sleeve is suitable for the bigger ore of particle size after cracking; Old awl ip angle is less, and to accept the granularity of breaking ores less, and the ratio of reduction is also less, and ore is difficult for upwards beating when breaking ores, and crushing efficiency is higher, and is suitable broken than the fine grained ore.According to the difference and the different characteristics of new, old two awls, awl and old awl segmentation newly is installed in a chain of use the on the disintegrating machine of two same type same sizes respectively, their are carried out " breaking the ore deposit by grade professional division counterpart ".First paragraph is installed newly to bore and is first thin broken, and the broken middle lump ore stone of giving in the acceptance, second segment are installed old cone meticulous broken, accept the fritter ore that first thin broken is given.Between them, establish one screening, at the beginning of first section, carefully break genus procuratorial work screening, for second section preceding in advance screening of meticulous broken genus, when the procuratorial work of second section meticulous broken backspace screening genus is sieved.That is: first paragraph is just given screening behind the thin broken ore deposit, and ball milling is given in the lower ore deposit of sieve, and the ore deposit gives second segment meticulous broken sieve on, again backspace screening of the ore after the meticulous fragmentation of second segment, and ball milling is given in the lower ore deposit of sieve thereupon, and the ore deposit is returned to second segment is meticulous and is broken like this circulation on the sieve.Can give full play to the ore size thickness chief implementation separately of new awl and old awl like this has complementary functions, improve broken ore deposit efficient and effect, and, can also prolong the service life of two awl tapered sleeves, especially can be installed in meticulous reduction stage to the existing tapered sleeve of scrapping uses thoroughly and scraps, accomplish to make the best use of everything, reduce the two awl tapered sleeve consumptions in year.Implement the good effect of a chain of crush method of sectional grading.
1, solves disintegrating machine ip angle and the unmatched problem of ore size.
2, reduce brokenly the ore deposit internal circulating load.
3, reduce the test sieve component.
4, reduce ore size.
5, two cones are made the best use of everything.
Description of drawings
Fig. 1 is a chain of crushing circuit schematic diagrames of segmentation classification two machines of the present invention.
Fig. 2 is of the present invention three sections three grades of a chain of crushing circuit schematic diagrames.
Fig. 3 is a chain of crushing circuit schematic diagrames of of the present invention three sections three grades of three ability of swimmings.
Fig. 4 is the structural representation of ability of swimming gyratory crusher of the present invention.
Fig. 5 is for inverted steps shape mantle of the present invention and surely bore the partial structurtes schematic diagram.
The specific embodiment
Below in conjunction with description of drawings the specific embodiment of the present invention.
A kind of sectional cascade ore breaking method of the present invention, it is characterized in that adopting gyratory crusher, existing thick breaking, in broken, three ore crushing sections of three grades of thin broken fall on the basis, be divided into 2-3 broken ore deposit flow process section for the thin broken section, each broken ore deposit flow process section is by the mine-feeding equipment that mutually continues, ore crushing apparatus and ore discharge device form, between each broken ore deposit flow process section, be provided with screening machine, the mantle of the ore crushing apparatus of first paragraph and fixed cone adopt new part, mantle in the ore crushing section and fixed cone employing ore crushing apparatus the last period are scrapped the mantle of rear recovery and are decided cone with crossing subsequently, first pass Duan Weichu thin broken, the broken middle lump ore stone of giving in the acceptance, the second flow process section or second, the 3rd flow process section is installed old cone, cry meticulous broken, accept the fritter ore that first thin broken is given, establish screening between them, that is: first paragraph is just given screening behind the thin broken ore deposit, ball milling is given in the lower ore deposit of sieve, and the ore deposit gives subsequent segment meticulous broken on the sieve.
The last period, mantle and the fixed cone of disintegrating machine were installed and used with fixed cone transposing with the mantle of rear one section disintegrating machine, new tapered sleeve ip angle is got maximum and is advisable in effective range, gape is got minimum of a value in effective range, suitably increase by two cone tapered sleeve thickness, especially increases the thickness of tapered sleeve bottom.
In embodiment as shown in Figure 1, described broken ore deposit flow process section can be 2 grade sections, namely by the disintegrating machine 3 of two same type same sizes, 7 form a broken chain of rings, i.e. crushing circuit, first grade Duan Weichu thin broken grade section and second grade section are meticulous broken grade section, just thin broken grade section adopts new cone, the journey setting width dimensions that closes of its gape is: the mantle of the new cone regulation that disintegrating machine is installed and fixed gape minimum width dimension of boring, meticulous broken grade section adopts first thin broken grade section to use about fifty percent old cone about new, and the journey of closing of its gape is set up width dimensions and is: about fifty percent the mantle and the minimum width dimension of surely boring gape about new that disintegrating machine is installed.
In embodiment as shown in Figure 2, described broken ore deposit flow process section is 3 grade sections, namely by the disintegrating machine 3 of 3 same type same sizes, 7,11 form a broken chain of rings, i.e. crushing circuit, thin broken grade section is divided into three grade sections, first grade Duan Weichu thin broken grade section, second grade section is thin broken grade section, the 3rd grade section is meticulous broken grade section, just thin broken grade section adopts new cone, the journey setting width dimensions that closes of its gape is: the mantle and the minimum width dimension of surely boring gape of the new cone regulation that disintegrating machine is installed, thin broken grade section adopts that first thin broken grade section use about 6.6 one-tenth about newly mantle and decide cone, the journey of closing of its gape is set up width dimensions and is: the minimum width dimension of gape when wearing up to about 6.6 one-tenth new left and right sides by the mantle of disintegrating machine with fixed cone use, meticulous broken grade section adopts that thin broken grade section use about 3.3 one-tenths about new mantle and decide cone, the journey of closing of its gape is set up width dimensions and is: the minimum width dimension of the mantle of press disintegrating machine gape when deciding to bore use and wear and tear about 3.3 one-tenth new left and right sides.
In embodiment as shown in Figure 2, three grades of a chain of crushing circuits of described flow process Duan Weisan section: sieve-the first screening machine 5 sieves for the first screening machine 5-, first screening machine 5 to one section broken ore deposit of ore deposit 1-machine, 3 broken ore deposit-section ore discharges for a section and upward break release grinding machine in ore deposit under the sieve that returns the first screening machine 5-, first screening machine 5 and second screening machine 9 in section broken ore deposits, section broken ore deposit-three, ore deposit-three for three sections broken machines 11 to ore deposit on the sieve of the second screening machine 9-, second screening machine, 9 screenings-the second screening machine for two sections broken machines 7 broken section broken ore deposits, ore deposit-two in the ore deposit.
3，：1、2-3--4-5-5-57-6-8-9-9-911--10-12-125-59。
In embodiment as shown in Figure 4, the ability of swimming gyratory crusher is to set up feedwater 2 at the feeding mouth place of conventional gyratory crusher, the disintegrating machine top connects an elongated segment pipe 14 for 13 times for the ore deposit inclined-pipe hopper, a canvas 17 is established in mantle 16 lower edges at disintegrating machine, unload ore deposit inclined-pipe hopper 18 at disintegrating machine and divide into a blow tank 20, be provided with mineral aggregate lifting device 21 and overflow mechanism 19 in this material feeding poor 20.
When suitably increasing by two awl tapered sleeve thickness, at mantle 16 with bore 15 broken surfaces, ore deposit surely and establish inverted steps shape step 161,151, formation ladder ip angle, each has a bank 162,152 (see figure 4)s above the ladder ip angle.Stop ore upwards to be beated with it, the degree that ore is upwards beated weakens or disappears, reduces the ore deposit to the wearing and tearing on the broken surface, ore deposit of two cone tapered sleeves, the friction between the increase ore and grind stripping.After ladder polishes, be classified as the in advance broken surface, ore deposit of two cone tapered sleeves and ip angle form, also can continue to use until scrap.
In implementation, multiple compound formulation can also be arranged, for example the three sections a chain of broken ore deposit of two-stage flow processs; Two sections classifications add a chain of broken ore deposit of water flow process; The three sections a chain of broken ore deposit of two-stage two water flow processs; The three sections a chain of broken ore deposit of three grades of two water flow processs etc., each ore deposit can be chosen according to situation condition separately.These embodiments all belong to category of the present invention.
Claims (8)
1, a kind of sectional cascade ore breaking method, it is characterized in that adopting gyratory crusher, existing thick breaking, in broken, three ore crushing sections of three grades of thin broken fall on the basis, be divided into 2-3 broken ore deposit flow process section for the thin broken section, each broken ore deposit flow process section is by the mine-feeding equipment that mutually continues, ore crushing apparatus and ore discharge device form, between each broken ore deposit flow process section, be provided with screening machine, the mantle of the ore crushing apparatus of first paragraph and fixed cone adopt new part, mantle in the ore crushing section and fixed cone employing ore crushing apparatus the last period are scrapped the mantle of rear recovery and are decided cone with crossing subsequently, first pass Duan Weichu thin broken, the broken middle lump ore stone of giving in the acceptance, the second flow process section or second, the 3rd flow process section is installed old cone, cry meticulous broken, accept the fritter ore that first thin broken is given, establish screening between them, that is: first paragraph is just given screening behind the thin broken ore deposit, ball milling is given in the lower ore deposit of sieve, and the ore deposit gives subsequent segment meticulous broken on the sieve.
2, according to the described sectional cascade ore breaking method of claim 1, the mantle that it is characterized in that disintegrating machine the last period and fixed awl are installed and used with fixed awl transposing with the mantle of back one section disintegrating machine, new tapered sleeve ip angle is got maximum and is advisable in effective range, gape is got minimum of a value in effective range, suitably increase by two awl tapered sleeve thickness, especially increase the thickness of tapered sleeve bottom.
3, according to the described sectional cascade ore breaking method of claim 1, it is characterized in that in described broken ore deposit flow process section be 2 grade sections, namely the disintegrating machine by two same type same sizes forms a broken chain of rings, i.e. crushing circuit, first grade Duan Weichu thin broken grade section and second grade section are meticulous broken grade section, just thin broken grade section adopts new cone, the journey setting width dimensions that closes of its gape is: the mantle of the new cone regulation that disintegrating machine is installed and fixed gape minimum width dimension of boring, meticulous broken grade section adopts first thin broken grade section to use about fifty percent old cone about new, and the journey of closing of its gape is set up width dimensions and is: about fifty percent the mantle and the minimum width dimension of surely boring gape about new that disintegrating machine is installed.
4, according to the described sectional cascade ore breaking method of claim 1, it is characterized in that described broken ore deposit flow process section is 3 grade sections, namely the disintegrating machine by 3 same type same sizes forms a broken chain of rings, i.e. crushing circuit, thin broken grade section is divided into three grade sections, first grade Duan Weichu thin broken grade section, second grade section is thin broken grade section, the 3rd grade section is meticulous broken grade section, just thin broken grade section adopts new cone, the journey setting width dimensions that closes of its gape is: the mantle and the minimum width dimension of surely boring gape of the new cone regulation that disintegrating machine is installed, thin broken grade section adopts that first thin broken grade section use about 6.6 one-tenth about newly mantle and decide cone, the journey of closing of its gape is set up width dimensions and is: the minimum width dimension of gape when wearing up to about 6.6 one-tenth new left and right sides by the mantle of disintegrating machine with fixed cone use, meticulous broken grade section adopts that thin broken grade section use about 3.3 one-tenths about new mantle and decide cone, the journey of closing of its gape is set up width dimensions and is: the minimum width dimension of the mantle of press disintegrating machine gape when deciding to bore use and wear and tear about 3.3 one-tenth new left and right sides.
5, according to the described sectional cascade ore breaking method of claim 4, it is characterized in that three grades of a chain of crushing circuits of described flow process Duan Weisan section: give release grinding machine in ore deposit under the sieve that the broken section broken ore deposit, ore deposit-three of three sections broken ore deposit machine-three section broken ore deposit machines returns first screening machine-first screening machine and second screening machine for ore deposit on the sieve that the broken section broken ore deposit, ore deposit-two of two sections broken ore deposit machines gives second screening machine-second screening machine screening-the second screening machine for ore deposit on first screening machine-first screening machine screening-the first sifted for the broken ore deposit-of ore deposit-a section broken ore deposit machine section ore discharge for one section.
6, according to the described sectional cascade ore breaking method of claim 4, it is characterized in that a chain of crushing circuit of three grades of ability of swimmings of described flow process Duan Weisan section: give the ore deposit for one section, the broken section ore discharge-Duan Shui ore deposit, ore deposit-of-one section broken ore deposit machine that feeds water is arranged to arrange to first blow tank-water ore and is arranged to second blow tank-discharges mineral water for the broken ore deposit-two of two sections broken ore deposit machines section-two sections broken mineral water ores of feedwater to ore deposit on first screening machine-first screening machine screening-the first sifted to arrange release grinding machine in ore deposit under the sieve that muck to the 3rd blow tank-the 3rd blow tank returns first screening machine-first screening machine and second screening machine for-three sections draining ore deposits of section feeding water, the broken ore deposit-three of three sections broken ore deposit machine-three section broken ore deposit machines for ore deposit on second screening machine-second screening machine screening-the second sifted.
7, a kind of disintegrating apparatus that is used for the described sectional cascade ore breaking method of claim 6, it is characterized in that at described disintegrating apparatus be the ability of swimming gyratory crusher: the feeding mouth place at conventional gyratory crusher sets up flow pipe, the disintegrating machine top is given under the inclined-pipe hopper of ore deposit and is connect an elongated segment pipe, a canvas is established in mantle lower edge at disintegrating machine, unload the ore deposit inclined-pipe hopper at disintegrating machine and divide into a blow tank, be provided with mineral aggregate lifting device and overflow mechanism in list is poor.
8, according to the described disintegrating apparatus of claim 7, it is characterized in that when suitably increasing by two awl tapered sleeve thickness, establishing inverted steps shape step on the broken surface, ore deposit of two awl tapered sleeves, form the ladder ip angle, each has a bank above the ladder ip angle.
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| CN101940972A (en) * | 2010-09-09 | 2011-01-12 | 中国恩菲工程技术有限公司 | Ore-crushing device |
| CN101972695A (en) * | 2010-09-09 | 2011-02-16 | 中国恩菲工程技术有限公司 | Ore crushing technique |
| CN102580833A (en) * | 2011-12-20 | 2012-07-18 | 宁夏华辉活性炭股份有限公司 | Device for crushing activated carbon |
| CN102580836A (en) * | 2012-02-29 | 2012-07-18 | 深圳市新星轻合金材料股份有限公司 | Equipment used for crushing fluorite tailings, crushing method and fluorite flotation method |
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| CN1055420C (en) * | 1995-01-25 | 2000-08-16 | 中国矿业大学 | Horizontal cone rotor impact crusher |
| FI20010867A (en) * | 2001-04-25 | 2002-10-26 | Feracitas Oy | The crusher |
| JP3854904B2 (en) * | 2002-07-29 | 2006-12-06 | 株式会社アーステクニカ | Cone crusher |
| US7048214B2 (en) * | 2002-08-23 | 2006-05-23 | Louis Wein Johnson | Gyratory crusher with hydrostatic bearings |
| CN2619716Y (en) * | 2003-06-27 | 2004-06-09 | 沈阳工业学院 | Conic crusher |
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| CN102580833A (en) * | 2011-12-20 | 2012-07-18 | 宁夏华辉活性炭股份有限公司 | Device for crushing activated carbon |
| CN102580836A (en) * | 2012-02-29 | 2012-07-18 | 深圳市新星轻合金材料股份有限公司 | Equipment used for crushing fluorite tailings, crushing method and fluorite flotation method |
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| CN105435900A (en) * | 2015-12-10 | 2016-03-30 | 彭攀桦 | Segmented processing rice milling machine and segmented processing rice milling method |
| CN111135933A (en) * | 2019-12-25 | 2020-05-12 | 日昌升建筑新材料设计研究院有限公司 | Machine-made sand and stone secondary crushing and secondary screening circulating production process |
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| CN100423844C (en) | 2008-10-08 |
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