CN103643038A - Paving method for sintering machine's bilayer bedding materials - Google Patents
Paving method for sintering machine's bilayer bedding materials Download PDFInfo
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Abstract
The invention discloses a method for paving bedding materials on a sintering machine before paving a mixed material into the sintering machine. The method includes the steps of: (1) paving a first layer of large bedding material on sintering machine trolley grate bars, with the large bedding material being sintered ore with a particle size of 8-12mm and thickness of 10-20mm; and (2) paving a second layer of small bedding material on the first layer of large bedding material, with the small bedding material being sintered ore with a particle size of 3-8mm and thickness of 10-15mm. The paving method for sintering machine's bilayer bedding materials provided by the invention can reduce consumption of large particle grade sintered ore without changing grate bar interval, improving the output of sintered ore and enhancing the utilization rate of blast furnace ditch return mine.
Description
Technical field
The invention belongs to iron ore sintering technical field, specifically, the invention provides a kind of sinter machine double bunk bed material method that can reduce large grade agglomerate materials under prerequisite not changing grid section gap, improve Sintering Yield and improve the utilization ratio of returning mine under blast furnace ditch.
Background technology
For protection sintering pallet with guarantee that the bed of material grills thoroughly, large-type sinterer all at the thick agglomerate of sintering pallet upper berth 20～40mm as grate-layer material, in grate-layer material, be covered with the compound sintering of lighting a fire.Between sintering machine bogie grates gap, grate-layer material granularity, bed permeability three, exist conflicting interactional relation.Whether sinter machine adopts grate-layer material technique, and its grid section gap design is different.Without the sinter machine of grate-layer material technique, grid section gap is less, is generally 2～3mm, and object is to prevent that the compound exhausting system of bleeding from gap from damaging smoke extractor rotor, but grid section gap too small after, exhausting resistance strengthens, bed permeability variation; Adopt the sinter machine of grate-layer material technique; grid section gap is generally 6～8mm; wide like this gap; the general compound large flue that all can bleed; so must first layer overlay grate-layer material on grid section, repave compound, so just solved the contradiction that grid section leaks material and ventilation property; grate-layer material can also be protected grid section and smoke extractor, reduces exhaust gas dust.After but grate-layer material granularity is excessive, must cause the minimizing of high-quality grade in finished product ore deposit, reduce the weight in blast furnace sinter ore deposit.
In the patent documentation that is CN1635167A at publication number " the whole grain of agglomerate less breakage granule smaller grain and narrower deflection gap bed material technique ", grate-layer material size range is reduced into 6～8mm, although this method has been eliminated the defect using the High-quality Sinters of 10～20mm as grate-layer material completely, but in document, do not mention grid section gap, and according to process requirements, only have grid section gap to be less than 6mm and just can avoid grid section to leak material, and upgrade grid section according to process requirements, will improve process costs with transformation screening system.
Summary of the invention
The object of the invention is to overcome above-mentioned technical deficiency, a kind of sinter machine double bunk bed material method that can reduce large grade agglomerate materials under prerequisite not changing grid section gap, improve Sintering Yield and improve the utilization ratio of returning mine under blast furnace ditch is provided.
According to sinter machine double bunk bed material method of the present invention, before sinter machine spreads compound, on sinter machine upper berth, grate-layer material comprises the following steps: (1), in the large grate-layer material of sintering machine bogie grates upper berth the first layer, this large grate-layer material is that granularity is the agglomerate that 8～12mm, thickness are 10～20mm; (2), in the little grate-layer material of the large grate-layer material of the first layer upper berth second layer, this little grate-layer material is that granularity is the agglomerate that 3～8mm, thickness are 10～15mm.
According to exemplary embodiment of the present invention, sintering machine bogie grates gap can be 6mm.
According to exemplary embodiment of the present invention, the large grate-layer material of the first layer in step (1) can be by agglomerate finished product screening gained, the little grate-layer material of the second layer in step (2) can be by the screening gained of returning mine under blast furnace ditch, and two-layer grate-layer material total thickness can be 30 ± 5mm.
According to exemplary embodiment of the present invention, from cold ore deposit machine agglomerate out, can be sent to the once cold ore deposit vibratory screening apparatus of agglomerating chamber, one time screen sizing point is 8mm, oversize level product can enter the cold ore deposit of secondary vibratory screening apparatus, regrading level point is 12mm, and screen undersize can be used as large grate-layer material and is sent to agglomerating chamber.
According to exemplary embodiment of the present invention, the recovery vibratory screening apparatus of returning mine under blast furnace ditch in returning to agglomerating chamber way, BF return fines can be set, and screen sizing point is 3mm, partly can be used as little grate-layer material and be stored in the groove of ore deposit on sieve.
According to exemplary embodiment of the present invention, the little grate-layer material of the second layer can account for 20～50% of total grate-layer material by weight percentage.
According to exemplary embodiment of the present invention, large grate-layer material can be transported to agglomerating chamber by large grate-layer material travelling belt, at large grate-layer material travelling belt idle period, little grate-layer material travelling belt can be transported to the little grate-layer material in the groove of ore deposit on large grate-layer material travelling belt, by large grate-layer material travelling belt, little grate-layer material can be transported to agglomerating chamber.
According to exemplary embodiment of the present invention, two feed bins arranged side by side before and after can arranging along chassis traffic direction above chassis in agglomerating chamber, be positioned at feed bin above and can transport the little grate-layer material of coming by the little grate-layer material travelling belt of splendid attire, be positioned at feed bin below and can transport the large grate-layer material of coming by the large grate-layer material travelling belt of splendid attire, two feed bins top arranges a blanking device, by being arranged at electric rotating plate in blanking device, controls large grate-layer material and little grate-layer material to bin blanking separately.
According to exemplary embodiment of the present invention, little grate-layer material travelling belt and be arranged between the electric rotating plate of two feed bins top and carry out chain control.
The sintering process that sinter machine double bunk bed material method according to the present invention is carried out can significantly reduce large grade agglomerate materials amount under the prerequisite that does not change grid section gap, the utilization ratio of returning mine under the Sintering Yield of raising sinter machine and raising blast furnace ditch.
Accompanying drawing explanation
The following description of the exemplary embodiment of carrying out in conjunction with the drawings, advantage of the present invention will become clear and be easier to and understand, wherein:
Fig. 1 is double bunk bed material process flow sheet.
Wherein:
1. cold ore deposit vibratory screening apparatus once;
2. two cold ore deposit vibratory screening apparatuss;
3. three cold ore deposit vibratory screening apparatuss;
4. the recovery vibratory screening apparatus of returning mine under blast furnace ditch;
5. little grate-layer material ore deposit groove;
6. blanking device;
7. electric rotating plate;
8. large grate-layer material feed bin;
9. little grate-layer material feed bin;
P1. large grate-layer material travelling belt;
P2. little grate-layer material travelling belt.
Embodiment
Below in conjunction with exemplary embodiment, sinter machine grate-layer material method of the present invention and equipment thereof are described further.
In prior art, the sintering machine bogie grates gap with grate-layer material technique is generally 6～8mm, increase grid section gap and can improve bed permeability, but also increased the granularity of grate-layer material, reduced the service efficiency in sintering high-quality finished product ore deposit and improved industrial production cost simultaneously.Therefore, do not affecting under the condition of bed permeability, reducing grid section gap and can reduce the granularity of grate-layer material, thereby enhance productivity and reduce production costs.It is 6mm that the present invention selects grid section gap, can guarantee, under the prerequisite of bed permeability, effectively to reduce the use of volume particle size agglomerate in grate-layer material.
Grate-layer material act as reduction resistance, improves bed thickness, reduces the impact of excessive moistening layer, Chalk-dust filtering, protection chassis, protection smoke extractor.Grate-layer material is finished product agglomerate, uses grate-layer material meeting to reduce the utilization ratio in sintering high-quality finished product ore deposit, is therefore guaranteeing, under the prerequisite of grate-layer material effect, should to reduce grate-layer material consumption as far as possible.In prior art, generally grate-layer material consumption is controlled at by weight percentage to 6% left and right of sinter machine Sintering Yield, granularity is at 10～20mm, and thickness is at 30～40mm.The double bunk bed material method that the present invention adopts, do not changing under the prerequisite in bogie grates gap, large grate-layer material is controlled to 3～4% of sinter machine Sintering Yield by weight percentage, two-layer grate-layer material total thickness is controlled at 30 left and right: it is 8～12mm that the first layer is used granularity, thickness is the large grate-layer material of 10～20mm, can reduce like this volume particle size agglomerate consumption, improve bed permeability; It is 3～8mm that the second layer is used granularity, thickness is the little grate-layer material of 10～15mm, like this can be when guaranteeing bed permeability, reduce little grate-layer material and compound and leak the infringement that material causes smoke extractor and chassis, improve the thickness of the bed of material and improve the utilization ratio of returning mine under blast furnace ditch, reduce the impact that excessive moistening layer causes sintering process.
Large grate-layer material screening system is arranged to three screenings.From cooler agglomerate out, be sent to the once cold ore deposit vibratory screening apparatus 1 of sieve compartment, screen sizing point is 8mm, the cold ore deposit of the product introduction secondary vibratory screening apparatus 2 of oversize level, screen sizing point is 12mm, the product of undersize level is sent to agglomerating chamber as large grate-layer material, when grate-layer material is superfluous, superfluous grate-layer material together with the product of the cold ore deposit of secondary vibratory screening apparatus 2 oversize levels as the sintering finished blast furnace that is sent to.Three cold ore deposit vibratory screening apparatuss 3 that enter sieve compartment from the agglomerate of 0～8mm grade that once cold ore deposit vibratory screening apparatus 1 sifts out, screen sizing point is 5mm, and the product of oversize level is sent to blast furnace, and the product of undersize level transports dosing vessel to and participates in batching as returning mine.By three screenings are set, can effectively reduce the agglomerate materials amount that is more than or equal to 12mm grade, improve the service efficiency of large grade agglomerate in blast-furnace smelting, reduced the granule level agglomerate that is less than 5mm simultaneously and sneaked in large grate-layer material the impact that sintering process and agglomerating plant are caused.
For little grate-layer material screening system, through detecting for a long time, the size composition of returning mine under blast furnace ditch is generally and is less than or equal to 8mm, is therefore to improve screening efficiency and simple flow, and once screening is only set, and divides and gets 3～8mm grade as little grate-layer material.Under blast furnace ditch, returning mine to return in sintering circuit way arranges under blast furnace ditch and returns mine and reclaim vibratory screening apparatus 4, and screen sizing point is 3mm, and the product of oversize level transports agglomerating chamber to as little grate-layer material, and the product of undersize level returns to sintering process and uses.
After little grate-layer material screening, can directly over other, the little grate-layer material travelling belt of little grate-layer material screening system P2, little grate-layer material ore deposit groove 5 be set, little grate-layer material after screening is deposited, the dispensing valve that is arranged at groove 5 bottoms, little grate-layer material ore deposit by control carries out feeding to little grate-layer material in groove, then by little grate-layer material travelling belt P2, the little grate-layer material in little grate-layer material ore deposit groove 5 is transported on large grate-layer material travelling belt P1.
Haulage system is comprised of large grate-layer material travelling belt P1 and little grate-layer material travelling belt P2, and haulage time is interval transportation.
Large grate-layer material travelling belt P1 is comprised of many conveyors, transporting direction is that large grate-layer material screening system is to feed bin direction, by large grate-layer material screening system, sieve out qualified large grate-layer material and be transported to large grate-layer material feed bin 8 via large grate-layer material travelling belt P1 and blanking device 6, when large grate-layer material feed bin 8 is bought securities with all one's capital, a conveyor that closes on the cold ore deposit of secondary vibratory screening apparatus 2 in large grate-layer material travelling belt P1 shuts down, conveyor in all the other large grate-layer material travelling belt P1 is in idling conditions, the superfluous large grate-layer material that the cold ore deposit of secondary vibratory screening apparatus 2 sieves out is directly as the sintering finished blast furnace that is sent to.When large grate-layer material feed bin 8 drops to certain position in storehouse, 2 pairs of large grate-layer material travelling belt P1 feeds of the cold ore deposit of secondary vibratory screening apparatus, close on the conveyor entry into service stopping of the cold ore deposit of secondary vibratory screening apparatus 2, again transport large grate-layer material.
Little grate-layer material travelling belt P2 is comprised of many conveyors, transporting direction is that little grate-layer material screening system is to large grate-layer material travelling belt P1 direction, at large grate-layer material feed bin 8, buy securities with all one's capital and cause closing on a neutral that conveyor shuts down of the cold ore deposit of secondary vibratory screening apparatus 2, little grate-layer material travelling belt P2 entry into service.That by little grate-layer material screening system, is sieved out is stored in the qualified little grate-layer material in little grate-layer material ore deposit groove 5, dispensing valve along groove 5 bottoms, little grate-layer material ore deposit drops on little grate-layer material travelling belt P2, and be transported in large grate-layer material travelling belt P1 on the conveyor in idling conditions by little grate-layer material travelling belt P2, conveyor by idle running is transported to little grate-layer material feed bin 9 by little grate-layer material, when little grate-layer material feed bin 9 is bought securities with all one's capital, little grate-layer material travelling belt P2 is out of service.When little grate-layer material feed bin 9 drops to certain position in storehouse, little grate-layer material travelling belt P2 running.According to embodiments of the invention, little grate-layer material travelling belt P2 transporting direction can be also the direction of little grate-layer material screening system to blanking device 6, little grate-layer material can, not via large grate-layer material travelling belt P1, directly be transported to blanking device 6 by little grate-layer material travelling belt P2 by little grate-layer material.
At switching grate-layer material travelling belt, transport in the process of grate-layer material, because grate-layer material travelling belt P1 or little grate-layer material travelling belt P2 can exist buildup that thereby the phenomenon of batch mixing amount occurs in transportation greatly, but compare with grate-layer material total amount, this batch mixing amount can be ignored.The impact that therefore can produce technology and equipment without the batch mixing of considering to cause due to travelling belt buildup when switching grate-layer material travelling belt.
Feed bin, be divided into large grate-layer material feed bin 8 and little grate-layer material feed bin 9, along before and after sinter machine traffic direction near being arranged in sintering device handpiece, before a little grate-layer material of feed bin splendid attire, a large grate-layer material of feed bin splendid attire next, this is arranged under the prerequisite that does not reduce grid section gap, can effectively prevent little grate-layer material leakage material, reduce the materials amount of large grate-layer material, also improved the utilization ratio that under blast furnace ditch, little grade is returned mine simultaneously.Bin bottom is installed blanking valve separately.According to the embodiment of the present invention, for reducing production costs, can reconstruct large grate-layer material feed bin 8 and little grate-layer material feed bin 9, under the condition of prior art, by add a dividing plate in raw material cabin, and in bottom, space, dividing plate both sides, open dispensing valve, can be under the prerequisite of feed change chamber structure not, realize the embodiment of the present invention in the function of large grate-layer material feed bin 8 and little grate-layer material feed bin 9.
Adopt double bunk bed material method to produce agglomerate.
From blowing circular colling machine agglomerate out, be sent to the once cold ore deposit vibratory screening apparatus 1 of sieve compartment, sieve for the first time, once the screen sizing point of cold ore deposit vibratory screening apparatus 1 is 8mm, the cold ore deposit of the product introduction secondary vibratory screening apparatus 2 of oversize level, carry out regrading, three cold ore deposit vibratory screening apparatuss 3 of the product introduction sieve compartment of undersize level, carry out three screenings; In regrading, the cold ore deposit of secondary vibratory screening apparatus 2 screen sizing points are 12mm, the product of undersize level is sent to large grate-layer material feed bin 8 as large grate-layer material by large grate-layer material travelling belt P1, and when large grate-layer material is superfluous, the product of unnecessary large grate-layer material and oversize level is delivered to blast furnace as raw materials for metallurgy; In three screenings, three times cold ore deposit vibratory screening apparatus 3 screen sizing points are 5mm, and the product of oversize level is delivered to blast furnace as raw materials for metallurgy, and the product of undersize level transports dosing vessel to and participates in batching as returning mine.
In grate-layer material blanking device 6, electric rotating plate 7 is chain with little grate-layer material travelling belt P2, when large grate-layer material travelling belt P1 transports large grate-layer material, little grate-layer material travelling belt is in halted state, in blanking device 6, electronic reprint 7 covers the discharge port that leads to little grate-layer material feed bin 9, the discharge port conducting of leading to large grate-layer material feed bin 8, large grate-layer material travelling belt P1 is directly by the feeding mouth in blanking device 6 and the large grate-layer material discharge port of conducting, by the extremely large grate-layer material feed bin 8 of large grate-layer material blanking.When large grate-layer material feed bin 8 is filled, the conveyor that closes on vibratory screening apparatus 2 places, the cold ore deposit of secondary in the large grate-layer material travelling belt of computer control P1 stops feed, now in large grate-layer material travelling belt P1 rest part in idling conditions, the superfluous large grate-layer material that the cold ore deposit of secondary vibratory screening apparatus 2 sieves out together with the product of the cold ore deposit of secondary vibratory screening apparatus 2 oversize levels as the sintering finished blast furnace that is sent to.
When large grate-layer material feed bin 8 storehouses are full, the conveyor that closes on the cold ore deposit of secondary vibratory screening apparatus 2 in large grate-layer material travelling belt P1 shuts down, in large grate-layer material travelling belt P1, all the other conveyors are in idling conditions, and operator open little grate-layer material travelling belt P2 by computer, start to transport little grate-layer material.
Little grate-layer material obtains by the screening of returning mine under blast furnace ditch is rear.Under blast furnace ditch, return mine in returning to the way of sintering circuit, according to practical situation, at correct position, arrange under a blast furnace ditch and return mine and reclaim vibratory screening apparatus 4, under blast furnace ditch, returning mine and reclaiming vibratory screening apparatus 4 screen sizing points is 3mm, the product of undersize level returns to sintering and uses, the product of oversize level is collected storage with little grate-layer material ore deposit groove 5, little grate-layer material travelling belt P2 is set again, baiting valve by little grate-layer material ore deposit trench bottom is transferred little grate-layer material to little grate-layer material travelling belt P2, little grate-layer material travelling belt P2 brings into operation, and little grate-layer material is transported in large grate-layer material travelling belt P1 on the conveyor in idling conditions, the little grate-layer material of little grate-layer material travelling belt P2 transportation being come by the conveyor of idle running is transported to blanking device 6.Now due to little grate-layer material travelling belt P2 operation, the electric rotating plate 7 chain with little grate-layer material travelling belt P2 covers the discharge port that leads to large grate-layer material feed bin 8, the discharge port conducting of leading to little grate-layer material feed bin 9, little grate-layer material travelling belt P2 is directly by the feeding mouth in blanking device 6 and the little grate-layer material discharge port of conducting, by little grate-layer material blanking to little grate-layer material feed bin 9.
When little grate-layer material feed bin storehouse is full, operator are out of service by the little grate-layer material travelling belt of computer control P2.Above transportation hockets, and by large grate-layer material feed bin 8 and the position in storehouse of little grate-layer material feed bin 9, is decided the operation conditions of haulage system.
When feed bin position in storehouse rises to certain altitude, just can carry out grate-layer material operation.In sinter machine operation process, empty chassis is by loop during to working face, open and regulate large grate-layer material feed bin 8 blanking valves, large grate-layer material is laid on chassis, thickness is 10～20mm, when the chassis of completing when large grate-layer material runs to little grate-layer material feed bin 9 blanking valve, open and regulate little grate-layer material bin blanking valve, little grate-layer material is evenly laid in the large grate-layer material on chassis, thickness is 10～15mm, has so formed double bunk bed material, then starts mixture distributor, through igniting, sintering, cooling, obtain agglomerate.
Table 1 is that prior art and the embodiment of the present invention are about the size composition contrast of grate-layer material agglomerate.In the size composition of prior art, the grate-layer material of 16～25mm grade accounts for 34.47% of total grate-layer material by weight percentage, and in the grate-layer material granularity of embodiment of the present invention formation, the grate-layer material of 16～25mm grade accounts for 9.63% of total grate-layer material by weight percentage, than prior art, reduced 24.84%, the large grade agglomerate of this part minimizing has entered blast-furnace smelting, obviously improved agglomerate utilization ratio, and grate-layer material is suitable on the impact of sintering process and equipment generation thereof in prior art and the embodiment of the present invention, therefore, the embodiment of the present invention can significantly improve agglomerate utilization ratio under the prerequisite that does not affect sintering process and equipment thereof.
Granularity contrast before and after table 2 reclaims for returning mine under blast furnace ditch, table 3 is little grate-layer material size composition.As shown in Table 2, the embodiment of the present invention has reclaimed and has been by weight percentage 7.40%, returns mine as little grate-layer material under blast furnace ditch that granularity is greater than 5mm; What in as shown in Table 3 little grate-layer material, granularity was less than 3mm only accounts for 8.69% by weight percentage, as second layer grate-layer material, meets process requirements completely, also less on the impact of equipment.Therefore, under recovery blast furnace ditch, returning mine, having reduced returns mine returns to the heavy fresh processed expense of sintering process, improved the utility value of returning mine, reduced the materials amount of large grade agglomerate in grate-layer material, increased blast furnace High-quality Sinters and thereby the supply of blast furnace has been improved to the metallurgical effect of blast furnace, and then under the condition that does not affect sintering process and agglomerating plant, given full play to the optimization function of grate-layer material to sintering process, economic benefit is obvious.
Table 1 prior art and the embodiment of the present invention are about the size composition contrast of grate-layer material agglomerate
| Grate-layer material size composition | 16～25mm% | 10～16mm% | 5～10mm% | <5mm% |
| Prior art | 34.47 | 52.22 | 10.5 | 2.81 |
| The embodiment of the present invention | 9.63 | 55.45 | 27.76 | 7.16 |
Under table 2 blast furnace ditch, return mine and reclaim front and back granularity contrast
| The recovery of returning mine under blast furnace ditch | Before recovery | After recovery |
| Granularity > 5mm% | 19.07 | 11.66 |
The little grate-layer material size composition of table 3
| Grade | > |
5～3mm% | <3mm% |
| Little grate-layer material size composition | 38.63 | 52.68 | 8.69 |
Claims (9)
1. a sinter machine double bunk bed material method, is characterized in that, grate-layer material on sinter machine upper berth before sinter machine spreads compound, said method comprising the steps of:
(1), in the large grate-layer material of sintering machine bogie grates upper berth the first layer, this large grate-layer material is that granularity is the agglomerate that 8～12mm, thickness are 10～20mm;
(2), in the little grate-layer material of the large grate-layer material of the first layer upper berth second layer, this little grate-layer material is that granularity is the agglomerate that 3～8mm, thickness are 10～15mm.
2. sinter machine double bunk bed material method as claimed in claim 1, is characterized in that, sintering machine bogie grates gap is 6mm.
3. sinter machine double bunk bed material method as claimed in claim 1, it is characterized in that, the large grate-layer material of the first layer in step (1) is by agglomerate finished product screening gained, and the little grate-layer material of the second layer in step (2) is by the screening gained of returning mine under blast furnace ditch, and two-layer grate-layer material total thickness is 30 ± 5mm.
4. sinter machine double bunk bed material method as claimed in claim 3, it is characterized in that, from cold ore deposit machine agglomerate out, be sent to the once cold ore deposit vibratory screening apparatus of agglomerating chamber, one time screen sizing point is 8mm, the cold ore deposit of oversize level product introduction secondary vibratory screening apparatus, regrading level point is 12mm, and screen undersize is sent to agglomerating chamber as large grate-layer material.
5. sinter machine double bunk bed material method as claimed in claim 3, is characterized in that, returns mine to return the recovery vibratory screening apparatus of returning mine under blast furnace ditch is set in agglomerating chamber way under blast furnace ditch, and screen sizing point is 3mm, on sieve, partly as little grate-layer material, is stored in the groove of ore deposit.
6. sinter machine double bunk bed material method as claimed in claim 1, is characterized in that, the little grate-layer material of the second layer accounts for 20～50% of total grate-layer material by weight percentage.
7. sinter machine double bunk bed material method as claimed in claim 1, it is characterized in that, large grate-layer material is transported to agglomerating chamber by large grate-layer material travelling belt, at large grate-layer material travelling belt idle period, little grate-layer material travelling belt is transported to the little grate-layer material in the groove of ore deposit on large grate-layer material travelling belt, by large grate-layer material travelling belt, little grate-layer material is transported to agglomerating chamber.
8. sinter machine double bunk bed material method as claimed in claim 7, it is characterized in that, two feed bins arranged side by side before and after arranging along chassis traffic direction above chassis in agglomerating chamber, be positioned at the little grate-layer material that the little grate-layer material travelling belt transportation of feed bin splendid attire is above come, be positioned at the large grate-layer material that the large grate-layer material travelling belt transportation of feed bin splendid attire is below come, two feed bins tops arrange blanking device, by being arranged at electric rotating plate in blanking device, control large grate-layer material and little grate-layer material to bin blanking separately.
9. sinter machine double bunk bed material method as claimed in claim 8, is characterized in that, little grate-layer material travelling belt and be arranged between the electric rotating plate of two feed bins top and carry out chain control.
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| CN107504827A (en) * | 2017-09-12 | 2017-12-22 | 首钢集团有限公司 | A kind of anti-paste blocking method of sintering machine castor bar |
| CN108253797A (en) * | 2018-03-28 | 2018-07-06 | 柳州钢铁股份有限公司 | Pallet grate-layer material grading distributing device and method |
| CN108774683A (en) * | 2018-08-08 | 2018-11-09 | 胡明意 | A kind of high magnesium composite sinter and its production method |
| CN108955259A (en) * | 2018-09-25 | 2018-12-07 | 陈伟 | Sintering machine grate-layer material device |
| CN110132013A (en) * | 2019-06-11 | 2019-08-16 | 山东钢铁股份有限公司 | A kind of hearth layer for sintering process optimization and with addition of technical equipment |
| CN110749197A (en) * | 2019-09-26 | 2020-02-04 | 首钢京唐钢铁联合有限责任公司 | Sintering screening material distribution device and method |
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| CN104043579A (en) * | 2014-06-24 | 2014-09-17 | 柳州钢铁股份有限公司 | Revolving furnace sintering ore granulating technology and sintering machine screening granulating machine for revolving furnace |
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| CN108253797A (en) * | 2018-03-28 | 2018-07-06 | 柳州钢铁股份有限公司 | Pallet grate-layer material grading distributing device and method |
| CN108774683A (en) * | 2018-08-08 | 2018-11-09 | 胡明意 | A kind of high magnesium composite sinter and its production method |
| CN108955259A (en) * | 2018-09-25 | 2018-12-07 | 陈伟 | Sintering machine grate-layer material device |
| CN110132013A (en) * | 2019-06-11 | 2019-08-16 | 山东钢铁股份有限公司 | A kind of hearth layer for sintering process optimization and with addition of technical equipment |
| CN110749197A (en) * | 2019-09-26 | 2020-02-04 | 首钢京唐钢铁联合有限责任公司 | Sintering screening material distribution device and method |
| CN113816381A (en) * | 2021-11-08 | 2021-12-21 | 宁夏天净隆鼎碳化硅有限公司 | Method for smelting silicon carbide by utilizing sealed environment-friendly silicon carbide smelting furnace |
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