CN103896043B - A kind of operational method improving superelevation aqueous ingredients mass transport ability - Google Patents
A kind of operational method improving superelevation aqueous ingredients mass transport ability Download PDFInfo
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- CN103896043B CN103896043B CN201410123748.0A CN201410123748A CN103896043B CN 103896043 B CN103896043 B CN 103896043B CN 201410123748 A CN201410123748 A CN 201410123748A CN 103896043 B CN103896043 B CN 103896043B
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Abstract
A kind of operational method improving superelevation aqueous ingredients mass transport ability, comprise the steps, 1) the pre-mixing before conveying, in stock ground, first pile one deck mend windrow, then on benefit windrow, pile one deck superelevation aqueous ingredients to mix auxiliary material, on superelevation aqueous ingredients mixes auxiliary material layer, pile the second layer again mend windrow, then mend at the second layer and windrow piles second layer superelevation aqueous ingredients and to mix auxiliary material, on second layer superelevation aqueous ingredients mixes auxiliary material, finally pile remaining third layer mend windrow; 2) stir and evenly mix in reclaiming process, reclaimer to center feeding, adopts a laminar feeding at stockpile periphery; 3) stir and evenly mix in course of conveying, new benefit windrow is carried to a junction of two streams, 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, wherein to 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 and junction of two streams load transfer device do not occur directly to contact.
Description
Technical field
The present invention relates to aqueous ingredients crude fuel conveying technology, in particular to a kind of operational method improving superelevation aqueous ingredients mass transport ability, be applicable to the pipage control of superelevation aqueous ingredients crude fuel, mainly can play the adhesion and flowing power that reduce superelevation aqueous ingredients crude fuel, reduce the conveying difficulty of these materials, improve the traffic capacity of these materials, thus save a large amount of electric power energies and material utilization.
Background technology
High-moisture crude fuel is some assorted auxiliary materials recycled mainly.For the ongoing operations making superelevation aqueous ingredients crude fuel be suitable for reclaimer, before these materials are carried, first corresponding process has been carried out to this part material, 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, bring difficulty to fetching and delivering operation normally.
Such as, the mix setting operation flow of reclaimer of auxiliary material output operation of responsible high-moisture is 1100 tons/hour, but because the mix adhesion of auxiliary material, flowing power and penetrablility of high-moisture is all stronger, therefore when reality is taken out, the operation flow of reclaimer can only remain on 150 tons/hours, the degree of utilization of operating system only has about 13%, causes the waste of system capability.
Simultaneously, although taken low discharge operational method when high-moisture mixes the output operation of auxiliary material, but thoroughly cannot 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 causes chute blocking flash.And carry out chute cleaning at every turn and need to consume a large amount of time, therefore whole system stops transport, and reduce further the degree of utilization of system.Make the mix process load of auxiliary material of high-moisture can not meet the processing demands of material far away, the mix use of auxiliary material and the turnover of stock yard of high-moisture is utilized and all cause adverse effect.
The high-moisture low major cause of auxiliary material traffic capacity of mixing is caused to be because the aqueous ingredients of material is too high, make material adhesion, flowing power and penetrablility all stronger, to mix the traffic capacity of auxiliary material as high-moisture will be improved, then must be started with by the physical behavior changing these materials.
Summary of the invention
The object of the present invention is to provide a kind of operational method improving superelevation aqueous ingredients mass transport ability, by carrying the process in front and conveying, 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 is mixed before transporting in advance by high-moisture crude fuel, getting the conveying difficulty that the method stirring and collaborate conveying reduces high-moisture crude fuel, effectively improve the operational capability of reclaimer when carrying by shovel.The present invention utilizes the stocker of stock ground existing facility by lower for the aqueous ingredients that originally will be deposited in stock ground when high-moisture crude fuel loading bay, the good material of adsorbability directly spreads and is sprinkled upon on high-moisture crude fuel, these materials are utilized to adsorb to fall a part of moisture content in high-moisture crude fuel, when carrying, reclaimer adopts a laminar feeding, got by the scraper bowl shovel of reclaimer and mixed material is stirred, 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 exports 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 improving superelevation aqueous ingredients mass transport ability of the present invention, comprises the steps,
1) the pre-mixing before conveying
Auxiliary material of the benefit windrow of wanted windrow and superelevation aqueous ingredients being mixed is got the raw materials ready with the superelevation aqueous ingredients auxiliary material/benefit windrow=1:2 that mixes; First in stock ground, pile one deck mend windrow, it accounts for mends 20 ~ 30% of windrow total weight, then on benefit windrow, pile one deck superelevation aqueous ingredients to mix auxiliary material, it accounts for 45 ~ 55% of assorted auxiliary material total weight, on superelevation aqueous ingredients mixes auxiliary material layer, pile the second layer again mend windrow, it accounts for mends 40 ~ 50% of windrow total weight, then mend at the second layer and windrow piles second layer superelevation aqueous ingredients and to mix auxiliary material, it accounts for 45 ~ 55% of assorted auxiliary material total weight, on second layer superelevation aqueous ingredients mixes auxiliary material, finally piles remaining third layer mend windrow; Wherein, the water content 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 stockpile footing material height 0.1 ~ 0.2 meter;
3) stirring and evenly mixing in course of conveying
New benefit windrow is carried to a junction of two streams, mend heap material granularity 0 ~ 8mm, aqueous ingredients 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, benefit windrow is allowed to be laid on lower floor, and mixture is laid on benefit windrow upper strata, mixture and junction of two streams load transfer device do not occur directly to contact.
Further, the operational method improving superelevation aqueous ingredients mass transport ability of the present invention, it comprises the steps:
1) the pre-mixing before conveying
Auxiliary material of the benefit windrow of wanted windrow and superelevation aqueous ingredients being mixed is got the raw materials ready with the superelevation aqueous ingredients auxiliary material/benefit windrow=1:2 that mixes; First pile in stock ground with stocker and mend windrow, mend windrow arrayed in columns, between the column and the column the reserved truck passage transporting assorted auxiliary material, developed width adds 20% ~ 30% according to the truck width transporting assorted auxiliary material; Piling height is take out this material reclaimer bucket wheel diameter 30% ~ 40%, and it accounts for mends 20 ~ 30% of windrow total weight; Be poured in above-mentioned reserved passage with truck by assorted auxiliary material, piling height is 70% ~ 80% of multiple row piling height, and assorted auxiliary material heap is identical with its stockpile piling height with heap center-point spacing; Recycling stocker carries out secondary and mends windrow on assorted auxiliary material, it accounts for mends 40 ~ 50% of windrow total weight, the secondary stockpile bottom-to-top-height mended after heap accumulation must not exceed 50% ~ 60% of this material reclaimer bucket wheel diameter of taking-up, and the heap that secondary mends windrow is identical with stockpile piling height with heap center-point spacing; Wherein, the water content 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 stockpile footing material height retains 0.1 ~ 0.2 meter;
3) stirring and evenly mixing in course of conveying
New benefit windrow is carried to a junction of two streams, mend heap material granularity 0 ~ 8mm, aqueous ingredients 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, benefit windrow is allowed to 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, aqueous ingredients lower than 5% iron-bearing material.
Beneficial effect of the present invention
The carrying method of high-moisture crude fuel of the present invention, mainly in order to effectively utilize the assorted auxiliary material that iron and steel enterprise is produced 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 the adhesion of high-moisture crude fuel, penetrablility and flowing power, improve operating efficiency.The carrying method of high-moisture crude fuel, reduces the conveying difficulty of high-moisture crude fuel by the most practical most economical method, also just improve the utilization of these materials, decreases the waste of the electric power energy caused because operating efficiency is low.
Accompanying drawing explanation
Fig. 1 ~ Fig. 3 is that superelevation aqueous ingredients of the present invention is mixed the schematic diagram of the pre-blending and piling of auxiliary material.
Fig. 4 is that superelevation aqueous ingredients of the present invention is mixed the schematic diagram that auxiliary material stirs and evenly mixs.
Detailed description of the invention
See Fig. 1 ~ Fig. 4, the operational method improving superelevation aqueous ingredients mass transport ability of the present invention, comprises the steps:
1) the pre-mixing before conveying
Auxiliary material of the benefit windrow of wanted windrow and superelevation aqueous ingredients being mixed is got the raw materials ready with the superelevation aqueous ingredients auxiliary material/benefit windrow=1:2 that mixes; First pile in stock ground 100 with stocker and mend windrow 1, mend windrow arrayed in columns, between the column and the column the reserved truck passage transporting assorted auxiliary material 2, developed width adds 20% ~ 30% according to the truck width transporting assorted auxiliary material; Piling height is take out this material reclaimer bucket wheel diameter 30% ~ 40%, and it accounts for mends 20 ~ 30% of windrow total weight; Be poured in above-mentioned reserved passage with truck by assorted auxiliary material 2, piling height is 70% ~ 80% of multiple row piling height, and assorted auxiliary material heap is identical with its stockpile piling height with heap center-point spacing; Recycling stocker carries out secondary and mends windrow 3 on assorted auxiliary material, it accounts for mends 40 ~ 50% of windrow total weight, the secondary stockpile bottom-to-top-height mended after heap accumulation must not exceed 50% ~ 60% of this material reclaimer bucket wheel diameter of taking-up, and the heap that secondary mends windrow is identical with stockpile piling height with heap center-point spacing; Wherein, the water content mending windrow need be less than 5%, and raw meal particle size is 0 ~ 8mm;
2) stirring and evenly mixing in reclaiming process
Reclaimer 200 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 200 bucket wheel diameter, and feeding is to stockpile footing material 4 highly retains 0.1 ~ 0.2 meter;
3) stirring and evenly mixing in course of conveying
New benefit windrow is carried to a junction of two streams, mend heap material granularity 0 ~ 8mm, aqueous ingredients lower than 5% iron-bearing material, the flow of operation is 40% ~ 50% of junction of two streams sealing-tape machine 300 designed capacity, and then taken out on stock ground by step 2 by reclaimer 200) mixture 5 that obtains, 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, benefit windrow is allowed to 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, aqueous ingredients lower than 5% iron-bearing material.
The operational method Appropriate application of the present invention operating system in crude fuel stockyard, use the pre-mixing on stock ground, the secondary mixing in reclaiming process and the interflow in course of conveying, effectively improve high-moisture to mix the physical property of auxiliary material, 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 have also been obtained and greatly improves simultaneously, and the degree of utilization of operating system reaches 100% substantially.Wherein the particularly important is, by the inventive method, the mix actual job flow of auxiliary material of superelevation aqueous ingredients also reaches 300 tons/hours, improves 100% on the original basis, and operating system blanking situation along the line have also been obtained obvious improvement.Current the present invention uses in the conveying operation of blast furnace gas mud and activated sludge.
In sum, the present invention effectively can improve superelevation aqueous ingredients and to mix the fan-out capability of auxiliary material, accelerate the material transfer of material storage yard, to the recycling improving secondary recovery material in smelter factory, reduce Material Cost, alleviate corporate environment to 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. can improve an operational method for superelevation aqueous ingredients mass transport ability, comprise the steps:
1) the pre-mixing before conveying
Auxiliary material of the benefit windrow of wanted windrow and superelevation aqueous ingredients being mixed is got the raw materials ready with the superelevation aqueous ingredients auxiliary material/benefit windrow=1:2 that mixes; First in stock ground, pile one deck mend windrow, it accounts for mends 20 ~ 30% of windrow total weight, then on benefit windrow, pile one deck superelevation aqueous ingredients to mix auxiliary material, it accounts for 45 ~ 55% of assorted auxiliary material total weight, on superelevation aqueous ingredients mixes auxiliary material layer, pile the second layer again mend windrow, it accounts for mends 40 ~ 50% of windrow total weight, then mend at the second layer and windrow piles second layer superelevation aqueous ingredients and to mix auxiliary material, it accounts for 45 ~ 55% of assorted auxiliary material total weight, on second layer superelevation aqueous ingredients mixes auxiliary material, finally piles remaining third layer mend windrow; Wherein, the water content 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 stockpile footing material height 0.1 ~ 0.2 meter;
3) stirring and evenly mixing in course of conveying
New benefit windrow is carried to a junction of two streams, mend heap material granularity 0 ~ 8mm, aqueous ingredients 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, benefit windrow is allowed to be laid on lower floor, and mixture is laid on benefit windrow upper strata, mixture and junction of two streams load transfer device do not occur directly to contact.
2. can improve an operational method for superelevation aqueous ingredients mass transport ability, it is characterized in that, it comprises the steps:
1) the pre-mixing before conveying
Auxiliary material of the benefit windrow of wanted windrow and superelevation aqueous ingredients being mixed is got the raw materials ready with the superelevation aqueous ingredients auxiliary material/benefit windrow=1:2 that mixes; First pile in stock ground with stocker and mend windrow, mend windrow arrayed in columns, the reserved truck passage transporting assorted auxiliary material between the column and the column, developed width adds 20% ~ 30% according to the truck width transporting assorted auxiliary material, piling height is take out this material reclaimer bucket wheel diameter 30% ~ 40%, and it accounts for mends 20 ~ 30% of windrow total weight; Be poured in above-mentioned reserved passage with truck by assorted auxiliary material, piling height is 70% ~ 80% of multiple row piling height, and multiple row piling height is take out this material reclaimer bucket wheel diameter 30% ~ 40%; It is identical with its stockpile piling height that center-point spacing piled by assorted auxiliary material heap and auxiliary material of mixing; Recycling stocker carries out secondary and mends windrow on assorted auxiliary material, it accounts for mends 40 ~ 50% of windrow total weight, the secondary stockpile bottom-to-top-height mended after heap accumulation must not exceed 50% ~ 60% of this material reclaimer bucket wheel diameter of taking-up, and the heap that secondary mends windrow is identical with stockpile piling height with heap center-point spacing; Wherein, the water content 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 stockpile footing material height retains 0.1 ~ 0.2 meter;
3) stirring and evenly mixing in course of conveying
New benefit windrow is carried to a junction of two streams, mend heap material granularity 0 ~ 8mm, aqueous ingredients 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, benefit windrow is allowed to 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, aqueous ingredients lower than 5% iron-bearing material.
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| CN107010425A (en) * | 2017-05-11 | 2017-08-04 | 上海振华重工电气有限公司 | Full-automatic windrow operational method |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN107010425A (en) * | 2017-05-11 | 2017-08-04 | 上海振华重工电气有限公司 | Full-automatic windrow operational method |
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