CN111996323A - Combined type ore coke groove arrangement process for blast furnace group - Google Patents
Combined type ore coke groove arrangement process for blast furnace group Download PDFInfo
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- CN111996323A CN111996323A CN202010999703.5A CN202010999703A CN111996323A CN 111996323 A CN111996323 A CN 111996323A CN 202010999703 A CN202010999703 A CN 202010999703A CN 111996323 A CN111996323 A CN 111996323A
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- 239000000571 coke Substances 0.000 title claims abstract description 292
- 238000000034 method Methods 0.000 title claims abstract description 29
- 230000008569 process Effects 0.000 title claims abstract description 29
- 239000000463 material Substances 0.000 claims abstract description 44
- 239000000428 dust Substances 0.000 claims abstract description 25
- 238000012546 transfer Methods 0.000 claims description 25
- 239000002390 adhesive tape Substances 0.000 claims description 22
- 239000000843 powder Substances 0.000 claims description 10
- 238000012216 screening Methods 0.000 claims description 10
- 238000005303 weighing Methods 0.000 claims description 6
- 238000012423 maintenance Methods 0.000 claims description 5
- 238000007599 discharging Methods 0.000 claims description 3
- 239000002994 raw material Substances 0.000 abstract description 15
- 230000009286 beneficial effect Effects 0.000 abstract description 5
- 238000000638 solvent extraction Methods 0.000 abstract description 2
- 230000008901 benefit Effects 0.000 description 6
- 239000000446 fuel Substances 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 4
- 230000009467 reduction Effects 0.000 description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 238000013016 damping Methods 0.000 description 2
- 239000006185 dispersion Substances 0.000 description 2
- 238000003860 storage Methods 0.000 description 2
- 230000008859 change Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000010410 dusting Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 238000009851 ferrous metallurgy Methods 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000005192 partition Methods 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
- 238000009423 ventilation Methods 0.000 description 1
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- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21B—MANUFACTURE OF IRON OR STEEL
- C21B7/00—Blast furnaces
- C21B7/18—Bell-and-hopper arrangements
- C21B7/20—Bell-and-hopper arrangements with appliances for distributing the burden
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Abstract
The invention provides a combined type ore coke groove arrangement process for a blast furnace group, which comprises at least three blast furnace ore coke groove units which are longitudinally arranged in parallel, wherein each blast furnace ore coke groove unit comprises a plurality of ore grooves and a plurality of coke grooves which are transversely arranged into a row; the coke groove area and the ore groove area are respectively positioned at two ends of the blast furnace ore coke groove unit, the ore groove and the coke groove of each blast furnace ore coke groove unit are respectively provided with a set of under-groove feeding device, and each blast furnace ore coke groove unit is provided with a set of under-groove main material belt conveyor; each blast furnace ore coke groove unit is provided with a set of ore-returning sealing-tape machine and a set of coke-returning sealing-tape machine, and all blast furnace ore coke groove units share a set of main ore-returning sealing-tape machine and a set of main coke-returning sealing-tape machine. The combined ore coke tank is centralized, occupies a small area and is more beneficial to controlling a dust pollution source; the ore tank and the coke tank are distributed at two ends and are arranged in a partitioning mode, so that the coke and ore can be conveniently and intensively fed, the feeding flow is simplified, and the secondary transportation frequency of the raw materials is effectively avoided or reduced.
Description
Technical Field
The invention belongs to the technical field of iron making in the ferrous metallurgy industry, and particularly relates to a combined type ore coke groove arrangement process for a blast furnace group.
Background
In recent years, a lot of blast furnaces with the same technical parameters are built in a certain land, and a clean green land factory with good building environment, reasonable layout, low investment, smooth and concise logistics and small occupied area is taken as a starting point, particularly in coastal areas, the arrangement forms, technical indexes and the like of all systems in a blast furnace area of a main process are basically the same, and a blast furnace group with the same technical parameters in a certain land is formed.
Under the traditional arrangement condition, each blast furnace ore coke groove in the blast furnace group is independently arranged, namely, each blast furnace is provided with the respective ore coke groove, at most two blast furnace ore coke grooves are combined and arranged, and in the traditional ore coke groove and the feeding process, the independent feeding system, the ore coke groove, the material returning system and the like are respectively arranged. The defects of more buildings, dispersion arrangement, large occupied area, large one-time investment, complex raw fuel feeding system, more transfer switching and falling times, dispersion of raw material dust pollution sources and the like are caused, not only are ore coke grooves and return coke arrangement dispersed, but also the pollution sources are more, the powder content rate of raw materials is increased, and the screening pressure under the grooves is increased. In addition, the original fuel bins of the blast furnace ore coke tanks are independent, and when a certain blast furnace feeding system fails, the original fuel bins cannot be mutually reserved, so that the production is reduced and even the damping down is forced.
Disclosure of Invention
In view of the above-mentioned shortcomings of the prior art, the present invention aims to provide a combined coke-oven ore trough arrangement process for a blast furnace cluster, wherein the coke-oven ore trough is arranged in a centralized manner, so as to facilitate the centralized feeding of coke and ore, and the process has the advantages of compact arrangement, small floor space, reduced engineering amount and reduced one-time investment cost.
In order to achieve the above objects and other related objects, the technical solution of the present invention is as follows:
a combined ore coke groove arrangement process for a blast furnace group comprises a combined ore coke groove, a feeding system under the groove and a material returning system, wherein the blast furnace group comprises at least three blast furnaces;
the combined ore coke groove comprises at least three blast furnace ore coke groove units which are longitudinally arranged in parallel, each blast furnace ore coke groove unit corresponds to one blast furnace, and each blast furnace ore coke groove unit comprises a plurality of ore grooves and a plurality of coke grooves which are arranged in a row along the transverse direction; each blast furnace ore coke groove unit is transversely divided into an ore groove area and a coke groove area, the ore groove area is close to the first end of the blast furnace ore coke groove unit in the transverse direction, and the coke groove area is close to the second end of the blast furnace ore coke groove unit in the transverse direction;
the under-groove feeding system comprises an under-groove feeding device and a main material adhesive tape machine, wherein the ore groove and the coke groove of each blast furnace ore and coke groove unit are respectively provided with a set of under-groove feeding device, and each blast furnace ore and coke groove unit is correspondingly provided with a set of under-groove main material adhesive tape machine;
the material returning system comprises a return mine sealing-tape machine and a return coke sealing-tape machine; and each blast furnace ore coke groove unit is provided with a set of ore returning sealing-tape machine and a set of coke returning sealing-tape machine.
Optionally, the material troughs of each blast furnace ore coke trough unit are arranged in a row along the longitudinal direction, and the material troughs of each blast furnace ore coke trough unit along the longitudinal direction at the same station are communicated to form a pairwise standby relationship.
Optionally, the material returning system further comprises a set of main ore-returning belt conveyor and a set of main coke-returning belt conveyor, and all blast furnace ore coke trough units share the main ore-returning belt conveyor and the main coke-returning belt conveyor; and the undersize powder of each blast furnace ore coke groove unit is conveyed to a shared main ore-returning belt machine/main coke-returning belt machine through the corresponding ore-returning belt machine/coke-returning belt machine and is returned out by the main ore-returning belt machine/main coke-returning belt machine.
Optionally, the undersize fine ore of each blast furnace ore coke trough unit returns to one transverse end of the combined ore coke trough through an ore-returning belt conveyor, and is input into a common fine ore bin through a common main ore-returning belt conveyor; and the coke ore under the screen of each blast furnace ore coke groove unit returns to the other transverse end of the combined ore coke groove through a coke return adhesive tape machine and is input into a common coke breeze bin by a common main coke return adhesive tape machine.
Optionally, a gap is arranged between the coke trough area and the ore trough area of each blast furnace ore coke trough unit along the transverse direction, and the gap forms an empty span.
Optionally, each blast furnace ore coke trough unit is provided with a dust removal pipeline, and at least a part of the dust removal pipelines of the blast furnace ore coke trough units are led out from the air span.
Optionally, the dust removal pipe of the blast furnace ore coke trough unit between the first and the last blast furnace ore coke trough units in all the blast furnace ore coke trough units arranged in the longitudinal direction is led out from the air span.
Optionally, the combined type ore coke groove arrangement process for the blast furnace group further comprises an on-groove feeding system, wherein the on-groove feeding system comprises an ore transfer station in front of the groove, a coke feeding rubber belt machine, an ore feeding rubber belt machine and a discharging car, the ore transfer station in front of the groove and the coke transfer station in front of the groove are respectively arranged outside two transverse ends of the combined type ore coke groove, the ore feeding rubber belt machine is arranged above the ore groove along the transverse direction, and the ore transfer station in front of the groove supplies materials to the ore groove from a first end through the ore feeding rubber belt machine; the coke feeding rubber belt machine is transversely arranged above the coke groove, and the coke transfer station in front of the coke groove feeds the coke groove from the second end through the coke feeding rubber belt machine.
Optionally, an empty bay is formed between the ore trough area and the coke trough area along the transverse direction, and the driving devices of the coke feeding rubber belt machine and the ore feeding rubber belt machine are arranged in the empty bay area.
Optionally, the coke feeding belt machine and the ore feeding belt machine are oppositely arranged.
Optionally, the material troughs of the blast furnace ore coke trough units are communicated along the longitudinal material trough at the same station to form a pairwise standby relation.
Optionally, a three-way distributor is arranged at the head of the material returning adhesive tape machine of each blast furnace ore coke tank unit, one way of the three-way distributor is connected to the main material returning adhesive tape machine, and the other way of the three-way distributor is used for emergency landing.
Optionally, all the ore tanks and coke tanks of each blast furnace ore coke tank unit are longitudinally arranged side by side in a common column; or all the ore tanks of each blast furnace ore coke tank unit are longitudinally arranged side by side and are arranged in a common column, and all the coke tanks of each blast furnace ore coke tank unit are longitudinally arranged side by side and are arranged in a common column.
Optionally, an overhaul beam and hoisting equipment are arranged below the combined ore coke groove, the hoisting equipment is installed on the overhaul beam, when the overhaul beam is transversely arranged, the hoisting equipment lifts the equipment to be overhauled from the air span, and one set of hoisting equipment is arranged below the ore groove area and below the coke groove area of each blast furnace ore coke groove unit.
Optionally, an overhaul beam and hoisting equipment are arranged below the combined ore coke groove, the hoisting equipment is installed on the overhaul beam, when the overhaul beam is longitudinally arranged, the hoisting equipment lifts the equipment to be overhauled into and out of the two sides of the combined ore coke groove, and a set of common hoisting equipment is arranged below the same station material groove of each blast furnace ore coke groove unit.
Optionally, the under-tank feeding device comprises a feeding and screening device and a weighing device.
As mentioned above, the beneficial effects of the invention are:
1. the combined ore coke tank is compact and reasonable in arrangement, small in occupied area and capable of reserving a larger space for other necessary facilities; the centralized arrangement avoids or reduces the falling frequency of the materials, reduces the crushing and dust pollution of the raw materials, saves the engineering quantity and reduces the one-time investment cost.
2. The ore tank and the coke tank are distributed at two ends of the combined ore and coke tank and are arranged in a partitioning manner, so that the coke and ore can be conveniently and intensively fed, the feeding flow is simplified, and the coke dust can be conveniently and intensively collected and utilized.
3. The centralized arrangement of the raw material area is more beneficial to the control and treatment of the dust pollution source.
Drawings
FIG. 1 is a schematic diagram of a process arrangement according to an embodiment of the present invention;
FIG. 2 is a schematic view of an air gap between the coke drum zone and the ore zone of FIG. 1;
FIG. 3 is a top view of FIG. 2;
FIG. 4 is a schematic view of the vertical arrangement of an embodiment of the invention (transverse arrangement of the access beams);
FIG. 5 is a side view of FIG. 4;
FIG. 6 is a schematic view of the vertical arrangement of an embodiment of the invention (longitudinal arrangement of the access beam);
fig. 7 is a side view of fig. 6.
Part number description:
1-a coke groove; 2-ore tank; 3-feeding and screening device; 4-a weighing device; 5-a main material adhesive tape machine below the tank; 6-a return mine belt conveyor; 7-coke returning belt conveyor; 8-air span; 9-coke feeding belt conveyor; 10-ore feeding belt conveyor; 11-hoisting equipment; 12-a pre-tank coke transfer station; 13-a pre-tank ore transfer station; 14-a coke de-dusting line; 15-an ore dust removal pipeline; 16-three-way distributor; 17-a drive device; 18-a fine coke bin; 19-fine ore storage; 20-main return mine belt conveyor; 21-main coke returning belt conveyor; 22-service beam.
Detailed Description
The following description of the embodiments of the present invention is provided for illustrative purposes, and other advantages and effects of the present invention will become apparent to those skilled in the art from the present disclosure.
Examples
As shown in fig. 1 to 7, the combined coke-chest arrangement process for blast-furnace battery exemplified in this example includes a combined coke-chest, a lower-chest charging system and a return system, wherein the blast-furnace battery refers to a blast-furnace battery having at least three blast furnaces;
the combined ore coke groove comprises at least three blast furnace ore coke groove units which are longitudinally (namely the front and back directions in figure 1) arranged in parallel, wherein each blast furnace ore coke groove unit is longitudinally adjacent and connected with each other, each blast furnace ore coke groove unit corresponds to one blast furnace and supplies materials for the blast furnace, and each blast furnace ore coke groove unit comprises a plurality of ore grooves 2 and a plurality of coke grooves 1 which are transversely arranged into a row (namely a line);
each blast furnace ore coke groove unit is divided into an ore groove area and a coke groove area along the transverse direction (namely the left and right directions in the figures 1, 4 and 6), the ore groove area is close to the first end of the blast furnace ore coke groove unit along the transverse direction, and the coke groove area is close to the second end of the blast furnace ore coke groove unit along the transverse direction; a plurality of ore tanks 2 in the ore tank area are arranged in rows along the transverse direction, coke tanks 1 in the coke tank area are arranged in rows along the transverse direction, and the ore tanks 2 and the coke tanks 1 of the same blast furnace ore coke tank unit are positioned in the same row;
as shown in fig. 1, the under-trough feeding system includes an under-trough feeding device and main material belt conveyors, wherein the ore trough 2 of each blast furnace ore and coke trough unit is provided with a set of under-trough feeding device, the coke trough 1 is provided with a set of under-trough feeding device, the number of the under-trough feeding device is equal to the sum of the numbers of the ore trough 2 and the coke trough 1, each blast furnace ore and coke trough unit is correspondingly provided with a set of under-trough main material belt conveyors 5, that is, the number of the under-trough main material belt conveyors 5 is the same as that of the blast furnace, coke and ore are respectively fed into the under-trough main material belt conveyors 5 by the under-trough belt conveyors 5, and the coke and ore are fed into the blast furnace by the;
the material returning system comprises a plurality of sets of ore returning sealing-tape machines 6 and a plurality of coke returning sealing-tape machines 7, wherein each blast furnace ore coke groove unit is provided with one set of ore returning sealing-tape machine 6 for returning ore fines and one set of coke returning sealing-tape machine 7 for returning coke fines; the number of the return-ore belt machines 6 and the number of the return-coke belt machines 7 respectively correspond to the number of the blast furnace ore coke groove units.
The combined ore coke tank has the advantages that the ore coke tank is intensively arranged, the arrangement is compact and reasonable, the occupied area is small, and a larger space is reserved for other necessary facilities; the centralized arrangement reduces the secondary transportation of the raw materials, avoids or reduces the falling times of the materials, reduces the crushing and dust pollution of the raw materials, saves the engineering amount, reduces the powder content, relieves the screening pressure under the groove, and creates conditions for the smooth operation in the furnace; and the one-time investment cost is reduced. The centralized arrangement of the raw material area is more beneficial to the control and treatment of the dust pollution source. In the figure of the embodiment, 3 blast furnace ore coke groove units are illustrated, which correspond to three blast furnaces, and in other embodiments, a plurality of blast furnaces and a plurality of blast furnace ore coke groove units can be adopted.
Each blast furnace ore groove 2 and burnt groove 1 are arranged respectively at the both ends of combination formula ore deposit burnt groove, and the subregion setting both satisfies raw materials and fuel and comes from different position, and the concentrated feed of coke of being convenient for and ore simplifies the preceding feed flow of groove, can separately set up ore groove 2 and burnt groove 1 dust removal again, more is favorable to the recycle of coke dust removal ash.
In one embodiment, the material returning system further comprises a set of main coke returning belt machines 21 and a set of main mine returning belt machines 20; all blast furnace ore coke groove units share one set of main ore return belt machine 20 and one set of main coke return belt machine 21; undersize powder of each blast furnace ore coke groove unit is conveyed to a shared main ore-returning belt machine 20 through a corresponding ore-returning belt machine 6 and is returned out of the main ore-returning belt machine 20; and the undersize powder of each blast furnace ore coke groove unit is conveyed to a shared main coke returning adhesive tape machine 21 through a corresponding coke returning adhesive tape machine 7 and is returned out by the main coke returning adhesive tape machine 21.
The combined material returning system shares one set of main material returning belt machine, thereby simplifying the arrangement of external facilities, comprehensively utilizing equipment and saving comprehensive investment.
Wherein, the feeding device under the groove comprises a feeding and screening device 3 and a weighing device 4, and the weighing device 4 can adopt the existing equipment such as a weighing hopper and the like.
In this example, the undersize powder of each blast furnace ore coke groove unit returns to the two transverse ends of the combined ore coke groove through the corresponding ore-returning sealing-tape machine/material-returning sealing-tape machine, is combined to the corresponding main ore-returning sealing-tape machine/main coke-returning sealing-tape machine 21 outside the ore groove 2 and the coke groove 1, and is conveyed into the storage bin by the main ore-returning sealing-tape machine 20/main coke-returning sealing-tape machine 21.
Specifically, the undersize fine ore of each blast furnace ore coke trough unit returns to the transverse second end (the right end in fig. 1) of the combined ore coke trough through the return-ore sealing-tape machine 6, and is input into the shared fine ore bin 19 through a shared set of main return-ore sealing-tape machines 20; the coke ore under the screen of each blast furnace ore coke trough unit returns to the first transverse end (left end in figure 1) of the combined ore coke trough through a coke return belt machine 7 and is input into a common coke breeze bin 18 through a common main coke return belt machine 21. The structure is convenient for the concentrated return of powder, reduces equipment and saves cost. And the materials return from different directions, so that the equipment is convenient to orderly arrange and smoothly run.
In one embodiment, a three-way distributor 16 is arranged at the head of the material returning adhesive tape machine of each blast furnace ore coke tank unit, wherein one path of the three-way distributor 16 is connected to the main material returning adhesive tape machine, and the other path is used for emergency landing. When the shared main material returning belt conveyor fails, the return ores and the return cokes can fall to the ground emergently without influencing the production of the blast furnace. Namely, the head of the return-ore adhesive tape machine 6 of each blast furnace ore coke groove unit is provided with a three-way distributor 16, one path of the three-way distributor 16 is connected to a main return-ore adhesive tape machine 20, and the other path is grounded; the head of the coke return adhesive tape machine 7 of each blast furnace ore coke groove unit is provided with a three-way distributor 16, one path of the three-way distributor 16 is connected to a main coke return adhesive tape machine 21, and the other path is grounded.
In one embodiment, when the empty bay 8 is not available, all the ore tanks 2 and the coke tanks 1 of each blast furnace ore coke tank unit are longitudinally arranged side by side in a common column arrangement, namely, the common column arrangement is supported by a common supporting structure, so that the engineering quantity is reduced; when the air span 8 exists, the coke trough area and the ore trough area are separated, all the ore troughs 2 of each blast furnace ore coke trough unit are longitudinally arranged side by side and are arranged in a common column, and all the coke troughs 1 of each blast furnace ore coke trough unit are longitudinally arranged side by side and are arranged in a common column.
In one embodiment, the material grooves of the same station in the longitudinal direction of each blast furnace ore coke groove unit are communicated (in the left and right directions in figures 4 and 6), and a two-by-two standby relationship is formed, namely, the material discharge grooves in the longitudinal direction are communicated. The stock is brought into a two-by-two stand-by relationship in emergency situations to replenish stock from adjacent bins. As shown in fig. 3, 4 and 6.
In one embodiment, each of the blast furnace ore coke trough units has a spacing between the coke trough zone and the ore trough zone in the transverse direction, the spacing forming an air gap 8. As shown in fig. 2 and 3. An air span is arranged between the ore tank area and the coke tank area, so that equipment on the tank can be conveniently arranged, equipment under the tank can be conveniently overhauled and hoisted, and a ventilation pipeline can be conveniently arranged.
Specifically, an air span 8 is arranged between the ore tank 2 and the coke tank 1 of each blast furnace ore coke tank unit, so that a driving device 17 of a feeding rubber belt machine on the tank can be conveniently arranged, the device can be used for overhauling and hoisting equipment such as a vibrating screen and the like under the combined ore coke tank, and the arrangement of dust removal pipelines of the middle ore tank 2 and the coke tank 1 is also convenient.
Specifically, each blast furnace ore coke groove unit is provided with a dust removal pipeline, and the dust removal pipeline of at least one part of the blast furnace ore coke groove units is led out from the air span 8. In this example, the dust removal pipes of the blast furnace coke trough units between the first and the last among all the blast furnace coke trough units arranged in the longitudinal direction are all led out from the air span 8, and the dust removal pipes of the first and the last blast furnace coke trough units can be led out from the air span 8 or from the side surfaces (namely the front side and the rear side of the combined coke trough), wherein the dust removal pipes comprise a coke dust removal pipe 14 and an ore dust removal pipe 15.
In one embodiment, the device further comprises an on-tank feeding system, wherein the on-tank feeding system comprises a pre-tank ore transfer station 13, a pre-tank coke transfer station 12, a coke feeding rubber belt machine 9 and an ore feeding rubber belt machine 10, and the ore feeding rubber belt machine 10 and the coke feeding rubber belt machine 9 are respectively provided with a respective discharging car; the ore transfer station 13 before the groove and the coke transfer station 12 before the groove are respectively arranged outside the two transverse ends of the combined ore coke groove, namely the ore transfer station 13 before the groove is arranged outside the right end of the combined ore coke groove in figure 1, and the coke transfer station 12 before the groove is arranged outside the left end of the combined ore coke groove.
The coke feeding rubber belt machine 9 and the ore feeding rubber belt machine 10 are oppositely arranged, the ore feeding rubber belt machine 10 is transversely arranged above the ore tank 2, and the ore transfer station 13 in front of the ore tank supplies the ore to the ore tank 2 from a first end through the ore feeding rubber belt machine 10 (the ore is transferred by moving in the direction from the first end to a second end), namely, the ore is transferred to the left from the ore transfer station 13 in front of the ore tank on the right side; the coke feeding rubber belt machine 9 is arranged above the coke tank 1 along the transverse direction, and the coke transfer station 12 in front of the coke tank feeds the coke tank 1 from the second end through the coke feeding rubber belt machine 9 (the coke is conveyed by moving from the second end to the first end), namely, the coke is conveyed to the right from the coke transfer station 12 in front of the coke tank on the left side. Each blast furnace ore coke groove unit groove is provided with a coke feeding rubber belt machine 9 and an ore feeding rubber belt machine 10, or adjacent blast furnace ore coke groove units share a coke feeding rubber belt machine 9 and an ore feeding rubber belt machine 10.
The feeding system on the groove simplifies the feeding flow before each groove of the blast furnace group, the logistics transportation is smooth, the transfer times are few, and the investment of the feeding system is reduced. The combined feeding reduces the powder content of the raw materials entering the furnace, relieves the screening pressure under the groove and creates conditions for the smooth operation in the furnace.
In this case, the drives 17 of the coke feeding belt machine 9 and the ore feeding belt machine 10 are arranged in the region of the gap 8.
And more than 10t of hoisting equipment 11 is longitudinally or transversely arranged below the combined ore coke trough and is used for integral hoisting of equipment such as the trough feeding and screening device 3 and the like.
As shown in fig. 4 and 5, in one embodiment, an overhaul beam 22 and a hoisting device 11 are arranged below the combined type ore coke trough, the hoisting device 11 is mounted on the overhaul beam 22 and can move along the overhaul beam 22, and the hoisting device 11 can be the hoisting device 11; when the maintenance beam 22 is transversely arranged, the hoisting device 11 hoists equipment to be maintained (such as a feeding machine and a vibrating screen of the feeding and screening device 3) into and out of the empty span 8; and a set of hoisting equipment 11 is respectively arranged below the ore trough area and below the coke trough area of each blast furnace ore coke trough unit, namely, two sets of hoisting equipment 11 are arranged on each blast furnace ore coke trough unit.
In another embodiment, as shown in fig. 6 and 7, the maintenance beams 22 are arranged longitudinally, the hoisting devices 11 hoist the equipment to be maintained from two sides (i.e. the front and back direction of fig. 1) of the combined type ore coke trough, a set of common hoisting devices 11 are arranged below a row of troughs at the same station of each blast furnace ore coke trough unit, and the number of the hoisting devices 11 is the same as that of the transverse rows of the trough bodies.
The invention has the advantages of compact and reasonable arrangement of the whole process flow, clear function partition, smooth logistics transportation, less transfer times, reduction of the production cost of raw materials, alleviation of the screening pressure under the trough and reduction of the powder content of the raw materials entering the furnace. The combined arrangement saves the occupied area and reduces the one-time investment of the project. The centralized arrangement of the raw material area is more beneficial to the control and treatment of the dust pollution source. Each blast furnace raw material unit can be reserved, and the phenomenon of production reduction or damping down caused by raw material shortage is reduced.
The invention can be widely applied to the synchronous construction of a plurality of blast furnace groups with the same technical parameters in a certain land, and has the advantages of good construction environment, reasonable layout, low investment, smooth and concise logistics and small occupied area, thereby having wide application prospect and great economic benefit.
Any person skilled in the art can modify or change the above-mentioned embodiments without departing from the spirit and scope of the present invention. Accordingly, it is intended that all equivalent modifications or changes which can be made by those skilled in the art without departing from the spirit and technical spirit of the present invention be covered by the claims of the present invention.
Claims (15)
1. A combined type ore coke groove arrangement process for a blast furnace group is characterized in that: the system comprises a combined ore coke groove, a feeding system under the groove and a material returning system, wherein the blast furnace group comprises at least three blast furnaces;
the combined ore coke groove comprises at least three blast furnace ore coke groove units which are longitudinally arranged in parallel, each blast furnace ore coke groove unit corresponds to one blast furnace, and each blast furnace ore coke groove unit comprises a plurality of ore grooves and a plurality of coke grooves which are arranged in a row along the transverse direction; each blast furnace ore coke groove unit is transversely divided into an ore groove area and a coke groove area, the ore groove area is close to the first end of the blast furnace ore coke groove unit in the transverse direction, and the coke groove area is close to the second end of the blast furnace ore coke groove unit in the transverse direction;
the under-groove feeding system comprises an under-groove feeding device and a main material adhesive tape machine, wherein the ore groove and the coke groove of each blast furnace ore and coke groove unit are respectively provided with a set of under-groove feeding device, and each blast furnace ore and coke groove unit is correspondingly provided with a set of under-groove main material adhesive tape machine;
the material returning system comprises a return mine sealing-tape machine and a return coke sealing-tape machine; and each blast furnace ore coke groove unit is provided with one set of the ore-returning sealing-tape machine and one set of the coke-returning sealing-tape machine.
2. The combined ore-coke trough placement process for blast furnace battery according to claim 1, characterized in that: the material troughs of each blast furnace ore coke trough unit are arranged in a row along the longitudinal direction, and the material troughs of each blast furnace ore coke trough unit are communicated along the longitudinal material troughs of the same station to form a pairwise standby relation.
3. The combined ore-coke trough placement process for blast furnace battery according to claim 1, characterized in that: the material returning system also comprises a set of main ore returning sealing-tape machine and a set of main coke returning sealing-tape machine, and all blast furnace ore coke groove units share the main ore returning sealing-tape machine and the main coke returning sealing-tape machine; and the undersize powder of each blast furnace ore coke groove unit is conveyed to a shared main ore-returning belt machine/main coke-returning belt machine through the corresponding ore-returning belt machine/coke-returning belt machine and is returned out by the main ore-returning belt machine/main coke-returning belt machine.
4. The combined ore-coke trough placement process for blast furnace battery according to claim 3, characterized in that: the undersize fine ore of each blast furnace ore coke groove unit returns to one transverse end of the combined ore coke groove through respective ore-returning belt conveyor, and is input into a common fine ore bin through a common main ore-returning belt conveyor; and the coke ore under the screen of each blast furnace ore coke groove unit returns to the other transverse end of the combined ore coke groove through respective coke return adhesive tape machines, and is input into a common coke breeze bin through a common main coke return adhesive tape machine.
5. The combined ore-coke trough placement process for blast furnace battery according to claim 1, characterized in that: and a gap is formed between the coke trough area and the ore trough area of each blast furnace ore coke trough unit along the transverse direction, and the gap forms an empty span.
6. The combined ore-coke trough placement process for blast furnace battery according to claim 5, characterized in that: and each blast furnace ore coke groove unit is provided with a dust removal pipeline, and at least one part of dust removal pipelines of the blast furnace ore coke groove units is led out from the air span.
7. The combined ore-coke trough placement process for blast furnace battery according to claim 6, characterized in that: and in all the blast furnace ore coke trough units arranged along the longitudinal direction, the dust removal pipelines of the blast furnace ore coke trough units between the first blast furnace ore coke trough unit and the last blast furnace ore coke trough unit are led out from the air span.
8. The combined ore-coke trough placement process for blast furnace battery according to claim 1, characterized in that: the combined type ore coke groove arrangement process for the blast furnace group further comprises an on-groove feeding system, wherein the on-groove feeding system comprises an ore transfer station in front of the groove, a coke feeding rubber belt machine, an ore feeding rubber belt machine and a discharging car, the ore transfer station in front of the groove and the coke transfer station in front of the groove are respectively arranged outside the two transverse ends of the combined type ore coke groove, the ore feeding rubber belt machine is transversely arranged above the ore groove, and the ore transfer station in front of the groove supplies materials to the ore groove from the first end through the ore feeding rubber belt machine; the coke feeding rubber belt machine is transversely arranged above the coke groove, and the coke transfer station in front of the coke groove feeds the coke groove from the second end through the coke feeding rubber belt machine.
9. The combined pit coke chest placement process for blast furnace battery as claimed in claim 8, wherein: an empty span is formed between the ore tank area and the coke tank area along the transverse direction, and driving devices of the coke feeding rubber belt machine and the ore feeding rubber belt machine are arranged in the empty span area.
10. The combined pit coke chest placement process for blast furnace battery as claimed in claim 8, wherein: the coke feeding rubber belt machine and the ore feeding rubber belt machine are arranged oppositely.
11. The combined ore-coke trough placement process for blast furnace battery according to claim 3, characterized in that: and a three-way distributor is arranged at the head part of the material returning adhesive tape machine of each blast furnace ore coke tank unit, one path of the three-way distributor is connected to the main material returning adhesive tape machine, and the other path of the three-way distributor is used for emergency landing.
12. The combined ore-coke trough placement process for blast furnace battery according to claim 1, characterized in that: all the ore tanks and coke tanks of each blast furnace ore coke tank unit are longitudinally arranged side by side and are arranged in a common column; or all the ore tanks of each blast furnace ore coke tank unit are longitudinally arranged side by side and are arranged in a common column, and all the coke tanks of each blast furnace ore coke tank unit are longitudinally arranged side by side and are arranged in a common column.
13. The combined ore-coke trough placement process for blast furnace battery according to claim 1, characterized in that: the combined type ore coke groove is provided with an overhaul beam and hoisting equipment below the ore coke groove, the hoisting equipment is installed on the overhaul beam, when the overhaul beam is transversely arranged, the hoisting equipment hoists equipment to be overhauled into and out of the gap, and one set of hoisting equipment is respectively arranged below the ore groove area and below the coke groove area of each blast furnace ore coke groove unit.
14. The combined ore-coke trough placement process for blast furnace battery according to claim 1, characterized in that: the combined type ore coke groove is provided with a maintenance beam and hoisting equipment below the combined type ore coke groove, the hoisting equipment is installed on the maintenance beam, when the maintenance beam is longitudinally arranged, the hoisting equipment lifts equipment to be maintained into and out of the two sides of the combined type ore coke groove, and a set of common hoisting equipment is arranged below the same station trough of each blast furnace ore coke groove unit.
15. The combined ore-coke trough placement process for blast furnace battery according to claim 1, characterized in that: the feeding device under the tank comprises a feeding and screening device and a weighing device.
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH03267308A (en) * | 1990-03-16 | 1991-11-28 | Kawasaki Steel Corp | Method for charging raw material into blast furnace |
| CN101792835A (en) * | 2010-01-26 | 2010-08-04 | 北京首钢国际工程技术有限公司 | Feeding system for blast furnace ore and coke channel system |
| CN102061347A (en) * | 2011-01-26 | 2011-05-18 | 中冶赛迪工程技术股份有限公司 | In-series merging arrangement process for two blast furnace ore coke groove systems |
| CN106399611A (en) * | 2016-11-30 | 2017-02-15 | 中冶南方工程技术有限公司 | Compact type blast furnace material supplying system capable of centrally weighing crude fuel |
| CN111020085A (en) * | 2020-01-03 | 2020-04-17 | 中冶赛迪工程技术股份有限公司 | Feeding unit with parallel under-tank screening and discharging, ore coke tank feeding system and method |
| CN212426088U (en) * | 2020-09-22 | 2021-01-29 | 中冶赛迪工程技术股份有限公司 | Combined type ore coke groove arrangement structure for blast furnace group |
-
2020
- 2020-09-22 CN CN202010999703.5A patent/CN111996323B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH03267308A (en) * | 1990-03-16 | 1991-11-28 | Kawasaki Steel Corp | Method for charging raw material into blast furnace |
| CN101792835A (en) * | 2010-01-26 | 2010-08-04 | 北京首钢国际工程技术有限公司 | Feeding system for blast furnace ore and coke channel system |
| CN102061347A (en) * | 2011-01-26 | 2011-05-18 | 中冶赛迪工程技术股份有限公司 | In-series merging arrangement process for two blast furnace ore coke groove systems |
| CN106399611A (en) * | 2016-11-30 | 2017-02-15 | 中冶南方工程技术有限公司 | Compact type blast furnace material supplying system capable of centrally weighing crude fuel |
| CN111020085A (en) * | 2020-01-03 | 2020-04-17 | 中冶赛迪工程技术股份有限公司 | Feeding unit with parallel under-tank screening and discharging, ore coke tank feeding system and method |
| CN212426088U (en) * | 2020-09-22 | 2021-01-29 | 中冶赛迪工程技术股份有限公司 | Combined type ore coke groove arrangement structure for blast furnace group |
Non-Patent Citations (2)
| Title |
|---|
| 张作程;阮建波;: "新建两座1800m~3高炉矿焦槽工艺设计优化" * |
| 文辉正;: "两座高炉的矿焦槽工艺布置规划设计的探讨" * |
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