CN103896043A - Operating method capable of improving conveying capacity of ultrahigh water content materials - Google Patents
Operating method capable of improving conveying capacity of ultrahigh water content materials Download PDFInfo
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- CN103896043A CN103896043A CN201410123748.0A CN201410123748A CN103896043A CN 103896043 A CN103896043 A CN 103896043A CN 201410123748 A CN201410123748 A CN 201410123748A CN 103896043 A CN103896043 A CN 103896043A
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Abstract
Disclosed is an operating method capable of improving conveying capacity of ultrahigh water content materials. The operating method includes the steps of 1), pre-blending before conveying, namely piling a layer of pile filling materials in a material yard, then piling a layer of ultrahigh water content miscellaneous auxiliary materials on the pile filling materials, piling a second layer of pile filling materials on the ultrahigh water content miscellaneous auxiliary materials, piling a second layer of ultrahigh water content miscellaneous auxiliary materials on the second layer of the pile filling materials, and finally piling a residual third layer of pile filling materials on the second layer of the ultrahigh water content miscellaneous auxiliary materials; 2), even blending and stirring during material taking, namely allowing a material taking machine to take the materials at the center from the periphery of material piles by adopting one-layer type material taking; 3), even blending and stirring during conveying, namely conveying the new pile filling materials to a confluence, the material taking machine taking out the blended materials obtained in the step 2) in the material yard, conveying the blended materials to conveying equipment of the confluence, wherein the pile filling materials are ensured to reach the conveying equipment of the confluence and paved on the lower layer, the blended materials are paved on the upper layer of the pile filling materials and are not in direct contact with the conveying equipment of the confluence.
Description
Technical field
The present invention relates to aqueous ingredients crude fuel conveying technology, be particularly related to a kind of operational method that improves superelevation aqueous ingredients mass transport ability, be applicable to the pipage control of superelevation aqueous ingredients crude fuel, mainly can play the adhesion and the flowing power that reduce superelevation aqueous ingredients crude fuel, reduce the conveying difficulty of these materials, improve the traffic capacity of these materials, thereby save a large amount of electric power energies and material utilization.
Background technology
High-moisture crude fuel is mainly the assorted auxiliary material of some recyclings.For making superelevation aqueous ingredients crude fuel be suitable for the daily operation of reclaimer, before carrying, these materials first this part material is carried out to corresponding processing, first spread the high-moisture crude fuel of firm loading bay out airing a period of time, utilize the moisture content in natural cause spent material, but nonetheless, operation high-moisture crude fuel or problem the more, have been brought difficulty to fetching and delivering operation normally.
For example, the setting operation flow of being responsible for the reclaimer of the assorted auxiliary material output operation of high-moisture is 1100 tons/hour, but because adhesion, flowing power and the penetrablility of the assorted auxiliary material of high-moisture are all stronger, therefore in the time that reality is taken out, the operation flow of reclaimer can only remain on about 150 tons/hour, the degree of utilization of operating system only has 13% left and right, causes the waste of system capability.
Simultaneously, although taked low discharge operational method in the time of the output operation of the assorted auxiliary material of high-moisture, but cannot thoroughly eliminate the consequence that material characteristic brings, material is very easily attached on the wooden partition of chute in operation process, material is constantly piled up, finally caused chute blocking flash.Need to consume a large amount of time and carry out chute cleaning at every turn, therefore whole system stops transport, and has further reduced the degree of utilization of system.Make the process load of the assorted auxiliary material of high-moisture can not meet the processing demands of material far away, the assorted use of auxiliary material of high-moisture and the turnover utilization of stock yard have all been caused to adverse effect.
Causing the assorted low major cause of auxiliary material traffic capacity of high-moisture is because the aqueous ingredients of material is too high, make material adhesion, flowing power and penetrablility all stronger, as improved the traffic capacity of the assorted auxiliary material of high-moisture, must start with by the physical behavior that changes these materials.
Summary of the invention
The object of the present invention is to provide a kind of operational method that improves superelevation aqueous ingredients mass transport ability, by the processing before carrying and in carrying, reduce the task difficulty of high-moisture crude fuel, improve the utilization of high-moisture crude fuel and save electric power energy.
For achieving the above object, technical scheme of the present invention is:
The present invention carries out premix before conveying by high-moisture crude fuel even, and the method for being got stirring and being collaborated to carry by shovel in the time carrying has reduced the conveying difficulty of high-moisture crude fuel, has effectively improved the operational capability of reclaimer.The stocker that the present invention utilizes stock ground existing facility in the time of high-moisture crude fuel loading bay is lower by being originally deposited in aqueous ingredients in stock ground, the good material of adsorbability directly paving is sprinkled upon on high-moisture crude fuel, utilize these materials to adsorb to fall a part of moisture content in high-moisture crude fuel, in the time carrying, reclaimer adopts a laminar feeding, get mixed material is stirred by the scraper bowl shovel of reclaimer, last in the course of conveying of sealing-tape machine, utilize the multifarious feature of equipment flowsheet, by a system job high-moisture crude fuel, related system is exported other aqueous ingredients and the low material kind of adhesion, make these material kinds and high-moisture crude fuel further mix and blend in course of conveying, again adsorb to fall the excessive moisture in high-moisture crude fuel by these materials, and form an isolation layer on high-moisture crude fuel surface simultaneously, to reduce the adhesion of high-moisture crude fuel, penetrablility and flowing power.
Particularly, a kind of operational method that improves superelevation aqueous ingredients mass transport ability of the present invention, comprises the steps,
1) mixing in advance before conveying
The benefit windrow of wanted windrow and the assorted auxiliary material of superelevation aqueous ingredients are got the raw materials ready with the assorted auxiliary material/benefit windrow=1:2 of superelevation aqueous ingredients; First in stock ground, pile one deck and mend windrow, it accounts for mends 20～30% of windrow total weight, then on benefit windrow, pile the assorted auxiliary material of one deck superelevation aqueous ingredients, it accounts for 45～55% of assorted auxiliary material total weight, on the assorted auxiliary material layer of superelevation aqueous ingredients, pile the second layer again and mend windrow, it accounts for mends 40～50% of windrow total weight, then on second layer benefit windrow, pile the assorted auxiliary material of second layer superelevation aqueous ingredients, it accounts for 45～55% of assorted auxiliary material total weight, finally on the assorted auxiliary material of second layer superelevation aqueous ingredients, piles remaining the 3rd layer and mends windrow; Wherein, the water content of mending windrow need be less than 5%, and raw meal particle size is 0～8mm;
2) stirring and evenly mixing in reclaiming process
Reclaimer is at stockpile periphery to center feeding, and depth amount is set in 0.2～0.5 meter, adopts a laminar feeding, and feeding thickness is 45%～58% of reclaimer bucket wheel diameter, and feeding is to till 0.1～0.2 meter of stockpile footing material height;
3) stirring and evenly mixing in course of conveying
Carry new benefit windrow to a junction of two streams, mend heap material granularity 0～8mm, aqueous ingredients is lower than 5% iron-bearing material, the flow of operation is 40%～50% of junction of two streams load transfer device designed capacity, and then taken out on stock ground by step 2 by reclaimer) mixture that obtains, carry to junction of two streams load transfer device equally, the flow of this mixture operation is 50%～60% of junction of two streams load transfer device designed capacity, wherein must guarantee that mending windrow first arrives junction of two streams load transfer device, allow benefit windrow be laid on lower floor, and mixture is laid on benefit windrow upper strata, mixture does not occur directly to contact with junction of two streams load transfer device.
Further, the operational method that improves superelevation aqueous ingredients mass transport ability of the present invention, it comprises the steps:
1) mixing in advance before conveying
The benefit windrow of wanted windrow and the assorted auxiliary material of superelevation aqueous ingredients are got the raw materials ready with the assorted auxiliary material/benefit windrow=1:2 of superelevation aqueous ingredients; First in stock ground, pile and mend windrow with stocker, mend windrow arrangement in column, the reserved truck passage that transports assorted auxiliary material between row and row, developed width adds 20%～30% according to the truck width that transports assorted auxiliary material; Piling height is to take out 30%～40% of this material reclaimer bucket wheel diameter, and it accounts for mends 20～30% of windrow total weight; Assorted auxiliary material is poured in above-mentioned reserved passage with truck, piling height is 70%～80% of multiple row piling height, and assorted auxiliary material heap is with to pile center-point spacing identical with its stockpile piling height; Recycling stocker carries out secondary and mends windrow on assorted auxiliary material, it accounts for mends 40～50% of windrow total weight, the stockpile bottom-to-top-height that secondary is mended after heap is piled up must not exceed 50%～60% of this material reclaimer bucket wheel diameter of taking-up, and the heap that secondary is mended windrow is identical with stockpile piling height with heap center-point spacing; Wherein, the water content of mending windrow need be less than 5%, and raw meal particle size is 0～8mm;
2) stirring and evenly mixing in reclaiming process
Reclaimer is at stockpile periphery to center feeding, and depth amount is set in 0.2～0.5 meter, adopts a laminar feeding, and feeding thickness is 45%～58% of reclaimer bucket wheel diameter, till feeding to stockpile footing material height retains 0.1～0.2 meter;
3) stirring and evenly mixing in course of conveying
Carry new benefit windrow to a junction of two streams, mend heap material granularity 0～8mm, aqueous ingredients is lower than 5% iron-bearing material, the flow of operation is 40%～50% of junction of two streams sealing-tape machine designed capacity, and then taken out on stock ground by step 2 by reclaimer) mixture that obtains, carry to junction of two streams sealing-tape machine equally, the flow of this mixture operation is 50%～60% of junction of two streams sealing-tape machine designed capacity, wherein must guarantee that mending windrow first arrives junction of two streams sealing-tape machine, allow benefit windrow be laid on lower floor, and mixture is laid on benefit windrow upper strata, mixture with do not occur directly to contact with junction of two streams sealing-tape machine tape surface, mending the kind of windrow is granularity 0～8mm, and aqueous ingredients is lower than 5% iron-bearing material.
Beneficial effect of the present invention
The carrying method of high-moisture crude fuel of the present invention, it is mainly the assorted auxiliary material in order effectively to utilize iron and steel enterprise to produce in process of production, by the method at the even interflow of premix, two kinds of different mixing of materials are carried together, adsorb to fall moisture content unnecessary in high-moisture crude fuel by secondary mixing and absorption, to reduce adhesion, penetrablility and the flowing power of high-moisture crude fuel, improve operating efficiency.The carrying method of high-moisture crude fuel, has reduced the conveying difficulty of high-moisture crude fuel by the most practical most economical method, also just improved the utilization of these materials, has reduced the waste of the electric power energy causing because operating efficiency is low.
Brief description of the drawings
Fig. 1～Fig. 3 is the schematic diagram of the assorted pre-blending and piling of auxiliary material of superelevation aqueous ingredients of the present invention.
Fig. 4 is the schematic diagram that the assorted auxiliary material of superelevation aqueous ingredients of the present invention stirs and evenly mixs.
Detailed description of the invention
Referring to Fig. 1～Fig. 4, the operational method that improves superelevation aqueous ingredients mass transport ability of the present invention, comprises the steps:
1) mixing in advance before conveying
The benefit windrow of wanted windrow and the assorted auxiliary material of superelevation aqueous ingredients are got the raw materials ready with the assorted auxiliary material/benefit windrow=1:2 of superelevation aqueous ingredients; First with stocker in stock ground 100 interior heap mend windrow 1, mend windrow arrangement in column, the reserved truck passage that transports assorted auxiliary material 2 between row and row, developed width adds 20%～30% according to the truck width that transports the auxiliary material of mixing; Piling height is to take out 30%～40% of this material reclaimer bucket wheel diameter, and it accounts for mends 20～30% of windrow total weight; Assorted auxiliary material 2 is poured in above-mentioned reserved passage with truck, piling height is 70%～80% of multiple row piling height, and assorted auxiliary material heap is with to pile center-point spacing identical with its stockpile piling height; Recycling stocker carries out secondary and mends windrow 3 on assorted auxiliary material, it accounts for mends 40～50% of windrow total weight, the stockpile bottom-to-top-height that secondary is mended after heap is piled up must not exceed 50%～60% of this material reclaimer bucket wheel diameter of taking-up, and the heap that secondary is mended windrow is identical with stockpile piling height with heap center-point spacing; Wherein, the water content of mending windrow need be less than 5%, and raw meal particle size is 0～8mm;
2) stirring and evenly mixing in reclaiming process
3) stirring and evenly mixing in course of conveying
Carry new benefit windrow to a junction of two streams, mend heap material granularity 0～8mm, aqueous ingredients is lower than 5% iron-bearing material, the flow of operation is 40%～50% of junction of two streams sealing-tape machine 300 designed capacitys, and then taken out on stock ground by step 2 by reclaimer 200) obtain mixture 5, carry to junction of two streams sealing-tape machine 300 equally, the flow of this mixture operation is 50%～60% of junction of two streams sealing-tape machine designed capacity, wherein must guarantee that mending windrow first arrives junction of two streams sealing-tape machine 300, allow benefit windrow be laid on lower floor, and mixture is laid on benefit windrow upper strata, mixture does not occur directly to contact with junction of two streams sealing-tape machine tape surface, mending the kind of windrow is granularity 0～8mm, and aqueous ingredients is lower than 5% iron-bearing material.
Operational method of the present invention has rationally been utilized the operating system in crude fuel stockyard, use secondary in mixing in advance on stock ground, reclaiming process to mix and course of conveying in interflow, effectively improve the physical property of the assorted auxiliary material of high-moisture, both the normal output operation of stacker-reclaimer and delivery rate had not been had influence on, the operation flow of assorted auxiliary material output system has also obtained greatly improving simultaneously, and the degree of utilization of operating system has reached 100% substantially.Wherein the particularly important is, by the inventive method, the actual job flow of the assorted auxiliary material of superelevation aqueous ingredients has also reached about 300 tons/hour, improved on the original basis 100%, and operating system blanking situation along the line has also obtained obvious improvement.The present invention at present uses in the conveying operation of blast furnace gas mud and activated sludge.
In sum, the present invention can effectively improve the fan-out capability of the assorted auxiliary material of superelevation aqueous ingredients, accelerate the material transfer of material storage yard, to improving the recycling of secondary recovery material in smelter factory, reduce Material Cost, alleviate corporate environment and pollute, save electric power energy and all have great importance, iron and steel enterprise at home and abroad all has wide promotion prospect.
Claims (2)
1. the operational method that can improve superelevation aqueous ingredients mass transport ability, comprises the steps:
1) mixing in advance before conveying
The benefit windrow of wanted windrow and the assorted auxiliary material of superelevation aqueous ingredients are got the raw materials ready with the assorted auxiliary material/benefit windrow=1:2 of superelevation aqueous ingredients; First in stock ground, pile one deck and mend windrow, it accounts for mends 20～30% of windrow total weight, then on benefit windrow, pile the assorted auxiliary material of one deck superelevation aqueous ingredients, it accounts for 45～55% of assorted auxiliary material total weight, on the assorted auxiliary material layer of superelevation aqueous ingredients, pile the second layer again and mend windrow, it accounts for mends 40～50% of windrow total weight, then on second layer benefit windrow, pile the assorted auxiliary material of second layer superelevation aqueous ingredients, it accounts for 45～55% of assorted auxiliary material total weight, finally on the assorted auxiliary material of second layer superelevation aqueous ingredients, piles remaining the 3rd layer and mends windrow; Wherein, the water content of mending windrow need be less than 5%, and raw meal particle size is 0～8mm;
2) in reclaiming process stir and evenly mix reclaimer at stockpile periphery to center feeding, depth amount is set in 0.2～0.5 meter, adopt a laminar feeding, feeding thickness is 45%～58% of reclaimer bucket wheel diameter, and feeding is to till 0.1～0.2 meter of stockpile footing material height;
3) stirring and evenly mixing in course of conveying
Carry new benefit windrow to a junction of two streams, mend heap material granularity 0～8mm, aqueous ingredients is lower than 5% iron-bearing material, the flow of operation is 40%～50% of junction of two streams load transfer device designed capacity, and then taken out on stock ground by step 2 by reclaimer) mixture that obtains, carry to junction of two streams load transfer device equally, the flow of this mixture operation is 50%～60% of junction of two streams load transfer device designed capacity, wherein must guarantee that mending windrow first arrives junction of two streams load transfer device, allow benefit windrow be laid on lower floor, and mixture is laid on benefit windrow upper strata, mixture does not occur directly to contact with junction of two streams load transfer device.
2. the operational method that improves superelevation aqueous ingredients mass transport ability as claimed in claim 1, is characterized in that, it comprises the steps:
1) mixing in advance before conveying
The benefit windrow of wanted windrow and the assorted auxiliary material of superelevation aqueous ingredients are got the raw materials ready with the assorted auxiliary material/benefit windrow=1:2 of superelevation aqueous ingredients; First in stock ground, pile and mend windrow with stocker, mend windrow arrangement in column, the reserved truck passage that transports assorted auxiliary material between row and row, developed width adds 20%～30% according to the truck width that transports assorted auxiliary material; Piling height is to take out 30%～40% of this material reclaimer bucket wheel diameter, and it accounts for mends 20～30% of windrow total weight; Assorted auxiliary material is poured in above-mentioned reserved passage with truck, piling height is 70%～80% of multiple row piling height, and assorted auxiliary material heap is with to pile center-point spacing identical with its stockpile piling height; Recycling stocker carries out secondary and mends windrow on assorted auxiliary material, it accounts for mends 40～50% of windrow total weight, the stockpile bottom-to-top-height that secondary is mended after heap is piled up must not exceed 50%～60% of this material reclaimer bucket wheel diameter of taking-up, and the heap that secondary is mended windrow is identical with stockpile piling height with heap center-point spacing; Wherein, the water content of mending windrow need be less than 5%, and raw meal particle size is 0～8mm;
2) stirring and evenly mixing in reclaiming process
Reclaimer is at stockpile periphery to center feeding, and depth amount is set in 0.2～0.5 meter, adopts a laminar feeding, and feeding thickness is 45%～58% of reclaimer bucket wheel diameter, till feeding to stockpile footing material height retains 0.1～0.2 meter;
3) stirring and evenly mixing in course of conveying
Carry new benefit windrow to a junction of two streams, mend heap material granularity 0～8mm, aqueous ingredients is lower than 5% iron-bearing material, the flow of operation is 40%～50% of junction of two streams sealing-tape machine designed capacity, and then taken out on stock ground by step 2 by reclaimer) mixture that obtains, carry to junction of two streams sealing-tape machine equally, the flow of this mixture operation is 50%～60% of junction of two streams sealing-tape machine designed capacity, wherein must guarantee that mending windrow first arrives junction of two streams sealing-tape machine, allow benefit windrow be laid on lower floor, and mixture is laid on benefit windrow upper strata, mixture does not occur directly to contact with junction of two streams sealing-tape machine tape surface, mending the kind of windrow is granularity 0～8mm, and aqueous ingredients is lower than 5% iron-bearing material.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109835725A (en) * | 2017-11-29 | 2019-06-04 | 中冶宝钢技术服务有限公司 | A method of wet feed accumulation is carried out using stacker-reclaimer |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107010425B (en) * | 2017-05-11 | 2019-01-15 | 上海振华重工电气有限公司 | Full-automatic windrow operational method |
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| JPS54131274A (en) * | 1978-03-31 | 1979-10-12 | Nippon Steel Corp | Method of moving stacking position for stacker |
| KR20040107668A (en) * | 2003-06-09 | 2004-12-23 | 주식회사 포스코 | A method for piling up ore and coal uniformly |
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2014
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Patent Citations (3)
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| JPS54131274A (en) * | 1978-03-31 | 1979-10-12 | Nippon Steel Corp | Method of moving stacking position for stacker |
| KR20040107668A (en) * | 2003-06-09 | 2004-12-23 | 주식회사 포스코 | A method for piling up ore and coal uniformly |
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Cited By (1)
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| CN109835725A (en) * | 2017-11-29 | 2019-06-04 | 中冶宝钢技术服务有限公司 | A method of wet feed accumulation is carried out using stacker-reclaimer |
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