CN103157543A - Alumina crust block crushing process and production line thereof - Google Patents

Alumina crust block crushing process and production line thereof Download PDF

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Publication number
CN103157543A
CN103157543A CN2011104121891A CN201110412189A CN103157543A CN 103157543 A CN103157543 A CN 103157543A CN 2011104121891 A CN2011104121891 A CN 2011104121891A CN 201110412189 A CN201110412189 A CN 201110412189A CN 103157543 A CN103157543 A CN 103157543A
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CN
China
Prior art keywords
crushing
grinding machine
alumina
enters
delivered
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CN2011104121891A
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Chinese (zh)
Inventor
岳新立
高洁
李晓雷
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洛阳宇航重工机械有限公司
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Priority to CN2011104121891A priority Critical patent/CN103157543A/en
Publication of CN103157543A publication Critical patent/CN103157543A/en

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Abstract

The invention relates to an alumina crust block crushing process and a production line thereof. According to the invention, a jaw crusher is used for carrying out rough crushing upon alumina crust blocks with large particle sizes; a primary material produced by rough crushing is delivered to a material chamber; material delivered from the material chamber is delivered into a vibration feeder; the material is uniformly fed into a grinder by using the vibration feeder; the material is subjected to secondary grinding and crushing in the grinder; grinded material with particle size smaller than 10mm<3> is discharged from the grinder, and the material with particle size larger than 10mm<3> is continued to be grinded until the requirement is reached; the produce with the required particle size is delivered into a vibration sieve through a bucket elevator, and is sieved into three materials, which are a material with particle size below 1mm<3>, a material with particle size of 1-8mm<3>, and a material with particle size higher than 8mm<3>; the crushed materials are respectively delivered into a 1mm<3> finished product chamber and a 1-8mm<3> finished product chamber; the material with the particle size higher than 8mm<3> is delivered into the grinder through a pipe and is re-crushed. All devices of the process are provided with bag filters, such that production discharge reaches a national environment-protection requirement.

Description

A kind of crushing process of alumina crusting block and production line thereof
Technical field
The present invention relates to crushing process of alumina crusting block and production line thereof, especially the technique of alumina crust block and production line.
Background technology
In recent years, the aluminum electrolysis industry development is added up demonstration since calendar year 2001 rapidly, and the demand of domestic electrolytic aluminium is with the speed increment in 1,000,000 tons of every year; By the end of the year 2003, the Aluminum Electrolysis Production ability reaches 8,340,000 tons; By 2008, the Aluminum Electrolysis Production ability reached 1,250 ten thousand tons.Along with the rapid growth of China's electrolytic aluminium output, the alumina crust block that aluminium electrolysis enterprise is left over aborning also increases thereupon.Yet the crushing process Current Status of R ﹠ D of domestic alumina crust block only is confined to individual equipment is is wherein rectified and improved and improved, as at present very many for the research of the equipment such as grinding machine, grader, deduster, but the mutual coupling of integral device and individual equipment is not made further research.According to the information that association of China Non-Ferrous Metals Industry announces, approximately have 12% to adopt the alumina crust block treatment process that falls behind, two kinds of methods of domestic basic employing in national electrolytic aluminium production capacity:
1, the granularity of utilizing disintegrating machine that alumina crust block crushing is become to need, carry the alumina particle after fragmentation to filter to screen cloth by conveyer, the bulky grain that does not filter out is used crusher in crushing, screening more again, until the alumina particle after fragmentation all can pass through screen cloth, i.e. existing multiple stage crushing; But in this technique, equipment failure rate is high, and maintenance cost is large, and the disintegrating apparatus liner plate is not wear-resisting, thereby operation rate is reduced.In the whole system running, the material airborne dust is larger, and site environment can not meet the requirement of environmental protection, and the worker laboring environment is poor.
2, adopt Raymond mill that alumina crust block is worn into powder, efficient is low, the problem of the bad control of material yet exist, be mainly reflected in the hardness of (1), alumina crust block when high, the speed of Raymond mill abrasive dust is too slow, and self wearing and tearing of Raymond mill are also serious; (2), when the water content of alumina crust block is large, easily adhere in Raymond mill, also easily stop up in the blanking course of conveying, cause Raymond mill production capacity to reduce; (3), when the alumina crust block fineness of grinding being required when high, Raymond mill abrasive dust ability is little; (4), before the alumina crust block abrasive dust during doped with fine powder, need to cross in advance once sieve; Otherwise these fine powders easily adhere to the conveying that material is worn in impact in raymond mill; (5), Raymond mill self structure, the wearability of tup, Hubei Province plate has determined the abrasive dust ability of Raymond mill to a certain extent, therefore is difficult to adapt to large industrial expansion requirement.
According to the above, generally adopt the treatment process of backward alumina crust block due to aluminium electrolysis enterprise, the large industrial factors of impact such as the said method working (machining) efficiency is low, equipment failure rate is high, automaticity is low, and plant maintenance and maintenance workload are large, labor strength is high and the potroom environment is damaged; Cause the quantum of output of alumina crust block far above yield, form a large amount of overstocking, cause the maintenance cost of the transportation of alumina crust block and warehouse cost, broken processing cost and device therefor high, therefore be badly in need of a kind of alumina crust block crushing production line technique and production line thereof that is applicable to the multiple product grading of large suitability for industrialized production.
At present, in the comprehensive recycling process of alumina crust block, owing to requiring granularity different, output is different, and is originally more extensive for the finished product requirement of variable grain.In view of the foregoing, the present invention is a kind of novel crushing process of alumina crusting block and production line thereof.
This shows, above-mentioned existing crushing process of alumina crusting block and production line thereof obviously still have inconvenience and defective, and demand urgently further being improved in processing method and use.In order to solve the problem of above-mentioned existence, relevant manufacturer there's no one who doesn't or isn't seeks solution painstakingly, but have no for a long time applicable design is completed by development always, and general processing method does not have appropriate processing method to address the above problem, and this is obviously the problem that the anxious wish of relevant dealer solves.Therefore how to found a kind of new a kind of crushing process of alumina crusting block and production line thereof, real one of the current important research and development problem that belongs to, also becoming the current industry utmost point needs improved target.
Summary of the invention
The object of the invention is to, overcome the defective that existing crushing process of alumina crusting block and production line thereof exist, and a kind of new a kind of crushing process of alumina crusting block and production line thereof be provided, technical problem to be solved is that a kind of crushing process of alumina crusting block and production line thereof are being provided, can realize the requirement of bulky grain finished product, be very suitable for practicality.
The object of the invention to solve the technical problems realizes by the following technical solutions.Its that proposes according to the present invention adopts jaw crusher to carry out coarse crushing to the alumina crust block of coarsegrain, and the one-level broken material that coarse crushing produces is delivered to feed bin, and feed bin material out enters oscillating feeder; The oscillating feeder even feeding enters grinding machine, and material through secondary grinding and fragmentation, makes less than 10mm in grinding machine 3The material that grinds discharge grinding machine, and greater than 10mm 3Material continue to grind until reach requirement for extremely; Meet the requirements of the granularity product, enter vibratory sieve by bucket elevator, through becoming three kinds of materials, i.e. 1mm after screening 3Following material, 1-8mm 3Material and 8mm 3Above material; Then, broken material enters respectively 1mm 3And 1-8mm 3Finished bin, and greater than 8mm 3Material, enter grinding machine by pipeline again broken.
The object of the invention to solve the technical problems also can be applied to the following technical measures to achieve further.
Aforesaid a kind of crushing process of alumina crusting block and production line thereof, a small amount of particulate micronic dust that wherein said this process equipment jaw crusher, feed bin, grinding machine, vibratory sieve produce, the negative pressure that is produced by blower fan enters bag filter by the pipeline that gathers dust.
By technique scheme, a kind of crushing process of alumina crusting block of the present invention and production line thereof have following advantages and beneficial effect at least:
1. can realize the finished product of more multiple granularity requirements.
2. can realize environment purification.
3. a complete set of system automation, need not manually to expend.
In sum, a kind of crushing process of alumina crusting block of the present invention and production line thereof, it adopts jaw crusher to carry out coarse crushing to the alumina crust block of coarsegrain, and the one-level broken material that coarse crushing produces is delivered to feed bin, and feed bin material out enters oscillating feeder; The oscillating feeder even feeding enters grinding machine, and material through secondary grinding and fragmentation, makes less than 10mm in grinding machine 3The material that grinds discharge grinding machine, and greater than 10mm 3Material continue to grind until reach requirement for extremely; Meet the requirements of the granularity product, enter vibratory sieve by bucket elevator, through becoming three kinds of materials, i.e. 1mm after screening 3Following material, 1-8mm 3Material and 8mm 3Above material; Then, broken material enters respectively 1mm 3And 1-8mm 3Finished bin, and greater than 8mm 3Material, enter grinding machine by pipeline again broken, and this process equipment is equipped with bag filter, make and produce discharging and reached national requirements for environmental protection.The present invention has significant progress technically, and has obvious good effect, is really a new and innovative, progressive, practical new design.
Above-mentioned explanation is only the general introduction of technical solution of the present invention, for can clearer understanding technological means of the present invention, and can be implemented according to the content of specification, and for above and other purpose of the present invention, feature and advantage can be become apparent, below especially exemplified by preferred embodiment, and the cooperation accompanying drawing, be described in detail as follows.
Description of drawings
Fig. 1 is crushing process of alumina crusting block of the present invention and production line flow diagram thereof.
The specific embodiment
Reach for further setting forth the present invention technological means and the effect that predetermined goal of the invention is taked, below in conjunction with accompanying drawing and preferred embodiment, a kind of crushing process of alumina crusting block and its specific embodiment of production line, processing method, step, feature and effect thereof to foundation the present invention proposes are described in detail as follows.
The present invention adopts technical scheme as described below: have belt conveyor to carry bulk 300X300X300mm 3The alumina crust block of granularity carries out coarse crushing to jaw crusher, and jaw crusher is the broken rear smaller particle size 50-150mm that produces slightly 3The one-level broken material enter the next stage belt conveyor, be delivered to feed bin, place tramp iron separator on belt conveyor, with in supplied materials with iron compound remove with tramp iron separator.Connect a rod valve under feed bin, control the discharge quantity of feed bin.Feed bin out material enters oscillating feeder, and the oscillating feeder even feeding enters the mill feeding mouth, and the grinding of cylindrical shell grinding machine and fragmentation are less than 10mm 3Material enters under discharging opening and exports, and enters bucket elevator, and upper outlet is collected the thin dirt of taking out of due to then fragmentation of grinding, thin dirt enters bag filter by the negative pressure of blower fan, and the material that enters bucket elevator is thus lifted to certain altitude by bucket elevator, enters vibratory sieve, sieve, be divided into 8mm 3Below and 1mm 3Following material and 8mm 3Above material.8mm 3Above material enters grinding machine grinding and fragmentation again by pipeline, until reach 8mm 3Below discharge and force the discharge grinding machine.1mm 3Following material enters storehouse 1 by belt conveyor.1-8mm 3Material enters storehouse 2 by pneumatic chute.Simultaneously, jaw crusher, feed bin, grinding machine, bucket are carried vibratory sieve and are all accessed by pipeline the pipeline that gathers dust, and all negative pressure that produced by blower fan of gathering dust enter bag filter.
Operation principle of the present invention is: as shown in Figure 1, by the effect of each equipment, make large as 300X300X300mm 3Alumina crust block reaches fragmentation step by step.Belt conveyor makes material can enter jaw crusher, enter the next stage belt conveyor after reaching certain granularity after the fragmentation of jaw crusher level, enter feed bin, feed bin plays cushioning effect, make material be unlikely to once to be discharged into oscillating feeder, the tramp iron separator of belt feeder wound plays draws useless scrap iron effect, and the feed purity that enters grinding machine is increased.Push-pull valve under feed bin is controlled the discharge quantity of feed bin.Oscillating feeder makes material can evenly enter grinding machine.Grinding machine is to adopt the grinding machine of forcing discharge.Its special device is special shifting board design, makes less than 10mm 3The material that grinds discharge grinding machine, and greater than 10mm 3Material continue to grind until reach requirement for extremely.The certain altitude that meets the requirements of the lifting of granularity product introduction bucket elevator enters vibratory sieve, through becoming three kinds of materials after screening, enters respectively pipeline, enters 1-8mm 3And 1mm 3Feed bin enters front belt feeder and the pneumatic sliding chute transportation of adopting of feed bin to finished bin.Greater than 8mm 3Material again broken by the head charging aperture that pipeline enters grinding machine.Grinding machine is discharged the micronic dust that the material that reaches granularity requirements also has a small amount of particulate simultaneously, and from the discharge suitable for reading of grinding machine discharging opening, the negative pressure band people bag filter that is produced by blower fan gathers dust.Simultaneously, jaw crusher, feed bin, grinding machine, bucket are carried vibratory sieve and are all accessed by pipeline the pipeline that gathers dust, and all negative pressure that produced by blower fan of gathering dust enter bag filter.
the above, it is only preferred embodiment of the present invention, be not that the present invention is done any pro forma restriction, although the present invention discloses as above with preferred embodiment, yet be not to limit the present invention, any those skilled in the art, within not breaking away from the technical solution of the present invention scope, when the technology contents that can utilize above-mentioned announcement is made a little change or is modified to the equivalent embodiment of equivalent variations, in every case be not break away from the technical solution of the present invention content, any simple modification that foundation technical spirit of the present invention is done above embodiment, equivalent variations and modification, all still belong in the scope of technical solution of the present invention.

Claims (2)

1. a crushing process of alumina crusting block and production line thereof, it is characterized in that it adopts jaw crusher to carry out coarse crushing to the alumina crust block of coarsegrain, and the one-level broken material that coarse crushing produces is delivered to feed bin, feed bin material out enters oscillating feeder; The oscillating feeder even feeding enters grinding machine, and material through secondary grinding and fragmentation, makes less than 10mm in grinding machine 3The material that grinds discharge grinding machine, and greater than 10mm 3Material continue to grind until reach requirement for extremely; Meet the requirements of the granularity product, enter vibratory sieve by bucket elevator, through becoming three kinds of materials, i.e. 1mm after screening 3Following material, 1-8mm 3Material and 8mm 3Above material; Then, broken material enters respectively 1mm 3And 1-8mm 3Finished bin, and greater than 8mm 3Material, enter grinding machine by pipeline again broken.
2. a kind of crushing process of alumina crusting block as claimed in claim 1 and production line thereof, it is characterized in that a small amount of particulate micronic dust that this process equipment jaw crusher, feed bin, grinding machine, vibratory sieve produce, the negative pressure that is produced by blower fan enters bag filter by the pipeline that gathers dust.
CN2011104121891A 2011-12-13 2011-12-13 Alumina crust block crushing process and production line thereof CN103157543A (en)

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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103611616A (en) * 2013-11-25 2014-03-05 镇江市电站辅机厂有限公司 Lime stone milling system
CN105107571A (en) * 2015-08-20 2015-12-02 坚构(北京)建筑技术有限公司 Efficient energy-saving concrete aggregate production line and method
CN105728157A (en) * 2016-04-01 2016-07-06 上海岚致环保科技有限公司 Environment-friendly modular high-quality gravel working station and control method thereof
CN107541601A (en) * 2017-07-03 2018-01-05 聊城信源集团有限公司 A kind of clear cinder inclusion recycling method of aluminium water bag

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0640753A (en) * 1990-12-29 1994-02-15 Chichibu Cement Co Ltd Mill for cement clinker or the like
CN1192386A (en) * 1997-12-31 1998-09-09 云南磷肥工业有限公司 Sorting and processing of ferro-phosphorus, and method of application
CN201291149Y (en) * 2008-10-31 2009-08-19 鞍钢集团矿业公司 Two-stage double closed circuit crushing screening facilites
CN101767046A (en) * 2009-12-29 2010-07-07 洛阳宇航重工机械有限公司 Crushing process of alumina crusting block and production line thereof
CN201692862U (en) * 2010-05-18 2011-01-05 浙江永博硅业有限公司 Silica powder manufacturing system

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0640753A (en) * 1990-12-29 1994-02-15 Chichibu Cement Co Ltd Mill for cement clinker or the like
CN1192386A (en) * 1997-12-31 1998-09-09 云南磷肥工业有限公司 Sorting and processing of ferro-phosphorus, and method of application
CN201291149Y (en) * 2008-10-31 2009-08-19 鞍钢集团矿业公司 Two-stage double closed circuit crushing screening facilites
CN101767046A (en) * 2009-12-29 2010-07-07 洛阳宇航重工机械有限公司 Crushing process of alumina crusting block and production line thereof
CN201692862U (en) * 2010-05-18 2011-01-05 浙江永博硅业有限公司 Silica powder manufacturing system

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103611616A (en) * 2013-11-25 2014-03-05 镇江市电站辅机厂有限公司 Lime stone milling system
CN105107571A (en) * 2015-08-20 2015-12-02 坚构(北京)建筑技术有限公司 Efficient energy-saving concrete aggregate production line and method
CN105728157A (en) * 2016-04-01 2016-07-06 上海岚致环保科技有限公司 Environment-friendly modular high-quality gravel working station and control method thereof
CN107541601A (en) * 2017-07-03 2018-01-05 聊城信源集团有限公司 A kind of clear cinder inclusion recycling method of aluminium water bag

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Application publication date: 20130619