CN111996323B - Combined ore coke tank arrangement process for blast furnace group - Google Patents
Combined ore coke tank arrangement process for blast furnace group Download PDFInfo
- Publication number
- CN111996323B CN111996323B CN202010999703.5A CN202010999703A CN111996323B CN 111996323 B CN111996323 B CN 111996323B CN 202010999703 A CN202010999703 A CN 202010999703A CN 111996323 B CN111996323 B CN 111996323B
- Authority
- CN
- China
- Prior art keywords
- ore
- coke
- tank
- blast furnace
- coke tank
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 239000000571 coke Substances 0.000 title claims abstract description 294
- 238000000034 method Methods 0.000 title claims abstract description 22
- 239000002390 adhesive tape Substances 0.000 claims abstract description 56
- 239000000463 material Substances 0.000 claims abstract description 28
- 239000000428 dust Substances 0.000 claims abstract description 26
- 238000012546 transfer Methods 0.000 claims description 24
- 239000000843 powder Substances 0.000 claims description 17
- 238000012216 screening Methods 0.000 claims description 9
- 238000005303 weighing Methods 0.000 claims description 6
- 238000007599 discharging Methods 0.000 claims description 5
- 229910052500 inorganic mineral Inorganic materials 0.000 claims description 3
- 239000011707 mineral Substances 0.000 claims description 3
- 239000002994 raw material Substances 0.000 abstract description 15
- 230000009286 beneficial effect Effects 0.000 description 4
- 239000000446 fuel Substances 0.000 description 4
- 238000012423 maintenance Methods 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 230000008901 benefit Effects 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000005192 partition Methods 0.000 description 2
- 238000007664 blowing Methods 0.000 description 1
- 238000013016 damping Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000009851 ferrous metallurgy Methods 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
- 238000007873 sieving Methods 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- 238000009423 ventilation Methods 0.000 description 1
Classifications
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Manufacturing & Machinery (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Manufacture Of Iron (AREA)
Abstract
The invention provides a combined ore coke tank arrangement process for a blast furnace group, which comprises at least three blast furnace ore coke tank units which are longitudinally arranged in parallel, wherein each blast furnace ore coke tank unit comprises a plurality of ore tanks and a plurality of coke tanks which are transversely arranged in a row; the coke tank area and the ore tank area are respectively positioned at two ends of a blast furnace ore coke tank unit, the ore tank and the coke tank of each blast furnace ore coke tank unit are respectively provided with a set of feeding devices under the tank, and each blast furnace ore coke tank unit is provided with a set of main material adhesive tape machine under the tank; each blast furnace ore coke tank unit is provided with a set of ore return adhesive tape machine and a set of coke return adhesive tape machine, and all blast furnace ore coke tank units share a set of main ore return adhesive tape machine and a set of main coke return adhesive tape machine. The combined ore coke tanks are arranged in a centralized way, so that the occupied area is small, and the dust pollution source can be controlled more easily; ore tank and coke tank distribute at both ends, and the subregion sets up, and the centralized feed of coke and ore of being convenient for simplifies the feed flow, effectively avoids or reduces the number of times of raw materials secondary transportation.
Description
Technical Field
The invention belongs to the technical field of iron making in the ferrous metallurgy industry, and particularly relates to a combined ore coke tank arrangement process for a blast furnace group.
Background
In recent years, a plurality of blast furnaces with the same technical parameters are built in synchronization in a certain land, and the blast furnace group with the same technical parameters in a certain land is formed by taking a clean green land factory with good environment, reasonable layout, low investment, smooth and concise logistics and small occupied area as a starting point, and particularly in coastal areas, the system arrangement form, the technical indexes and the like of the blast furnace area of the main process are basically the same.
Under the traditional arrangement condition, each blast furnace ore coke tank in the blast furnace group is independently arranged, namely each blast furnace is provided with a respective ore coke tank, and at most two blast furnace ore coke tanks are combined and arranged, and in the traditional ore coke tank and the feeding process, independent feeding systems, ore coke tanks, a returning system and the like are respectively arranged. The defects of more buildings, scattered arrangement, large occupied area, large disposable investment, complex raw fuel feeding system, more transportation, switching and falling times, scattered raw material dust pollution sources and the like are caused, so that the ore coke grooves and the return ore and return coke are distributed, the pollution sources are more, the raw material powder content is increased, and the screening pressure under the grooves is increased. In addition, the raw fuel bins of the blast furnace ore coke tank are independent, and when a certain blast furnace feeding system fails, the raw fuel bins cannot be mutually formed into spare parts, so that the production is forced to be reduced, and even the blowing 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 ore coke tank arrangement process for a blast furnace group, which is capable of intensively arranging ore coke tanks, facilitating centralized feeding of coke and ore, achieving compact arrangement, small occupied area, saving engineering quantity and reducing disposable investment cost.
To achieve the above object and other related objects, the present invention provides the following technical solutions:
the combined ore coke tank arrangement process for the blast furnace group comprises a combined ore coke tank, a tank discharging and feeding system and a returning system, wherein the blast furnace group comprises at least three blast furnaces;
the combined ore coke tank comprises at least three blast furnace ore coke tank units which are longitudinally arranged in parallel, each blast furnace ore coke tank unit corresponds to a blast furnace, and each blast furnace ore coke tank unit comprises a plurality of ore tanks and a plurality of coke tanks which are transversely arranged in a row; each blast furnace ore coke tank unit is transversely divided into an ore tank area and a coke tank area, wherein the ore tank area is close to a first end of the blast furnace ore coke tank unit in the transverse direction, and the coke tank area is close to a second end of the blast furnace ore coke tank unit in the transverse direction;
the under-tank feeding system comprises an under-tank feeding device and a main material belt conveyor, wherein a set of under-tank feeding devices are respectively arranged in a mine tank and a coke tank of each blast furnace mine coke tank unit, and a set of under-tank main material belt conveyor is correspondingly arranged in each blast furnace mine coke tank unit;
the material returning system comprises a mineral return adhesive tape machine and a coke return adhesive tape machine; and each blast furnace ore coke tank unit is provided with a set of ore return belt conveyor and a set of coke return belt conveyor.
Optionally, the trough of each blast furnace ore coke trough unit is arranged in a row along the longitudinal direction, and the trough of each blast furnace ore coke trough unit at the same station along the longitudinal direction is communicated to form a standby relation.
Optionally, the material returning system further comprises a set of main ore returning adhesive tape machine and a set of main coke returning adhesive tape machine, and all blast furnace ore coke tank units share the main ore returning adhesive tape machine and the main coke returning adhesive tape machine; the undersize powder of each blast furnace ore coke tank unit is conveyed to a common main ore return belt conveyor/main coke return belt conveyor through a corresponding ore return belt conveyor/coke return belt conveyor, and is returned out by the main ore return belt conveyor/main coke return belt conveyor.
Optionally, undersize powder ore of each blast furnace ore coke tank unit is returned to one transverse end of the combined ore coke tank through a return ore belt conveyor, and is input into a shared powder ore bin through a shared main return ore belt conveyor; the undersize coke mine of each blast furnace ore coke tank unit is returned to the other transverse end of the combined ore coke tank through a coke returning adhesive tape machine, and is input into a common coke breeze bin through a common main coke returning adhesive tape machine.
Optionally, a space is arranged between the coke tank area and the ore tank area of each blast furnace ore coke tank unit along the transverse direction, and the space forms a space span.
Optionally, each blast furnace ore coke tank unit is provided with a dust removal pipeline, and at least a part of the dust removal pipeline of the blast furnace ore coke tank unit is led out from the empty span.
Optionally, among all the blast furnace ore coke tank units arranged in the longitudinal direction, the dust removing pipeline of the blast furnace ore coke tank unit between the first and the last is led out from the empty span.
Optionally, the combined ore coke tank arrangement process for the blast furnace group further comprises an on-tank feeding system, wherein the on-tank feeding system comprises a pre-tank ore transfer station, a pre-tank coke transfer station, a coke feeding belt conveyor, an ore feeding belt conveyor and a discharging car, the pre-tank ore transfer station and the pre-tank coke transfer station are respectively arranged outside two transverse ends of the combined ore coke tank, the ore feeding belt conveyor is transversely arranged above the ore tank, and the pre-tank ore transfer station feeds the ore tank from a first end through the ore feeding belt conveyor; the coke feed belt conveyor is arranged above the coke tank in the transverse direction, and the coke transfer station in front of the tank feeds the coke tank from the second end through the coke feed belt conveyor.
Optionally, a space is formed between the ore tank area and the coke tank area along the transverse direction, and the driving devices of the coke feeding belt conveyor and the ore feeding belt conveyor are arranged in the space area.
Optionally, the coke feed belt conveyor and the ore feed belt conveyor are arranged opposite to each other.
Optionally, the blast furnace ore coke tank units are communicated with each other along the longitudinal trough of the same station to form a standby relation.
Optionally, the head of the material returning adhesive tape machine of each blast furnace ore coke tank unit is provided with a three-way distributor, 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.
Optionally, all ore tanks and coke tanks of each blast furnace ore and coke tank unit are longitudinally arranged side by side and co-column; or all ore tanks of each blast furnace ore coke tank unit are longitudinally arranged in a side-by-side co-column manner, and all coke tanks of each blast furnace ore coke tank unit are longitudinally arranged in a side-by-side co-column manner.
Optionally, the combined ore coke tank is provided with an overhaul beam and lifting equipment below the combined ore coke tank, the lifting equipment is arranged on the overhaul beam, when the overhaul beam is transversely arranged, the lifting equipment lifts the equipment to be overhauled from the empty span into and out of the lifting equipment, and a set of lifting equipment is respectively arranged below the ore tank area and below the coke tank area of each blast furnace ore coke tank unit.
Optionally, the combined ore coke tank is provided with maintenance roof beam and lifting device below, lifting device installs on the maintenance roof beam, when maintenance roof beam longitudinal arrangement, lifting device will wait to overhaul equipment and follow the both sides of combined ore coke tank hang into and hang out, and the same station silo below of each blast furnace ore coke tank unit sets up a set of shared lifting device.
Optionally, the under-tank feeding device comprises a feeding and sieving device and a weighing device.
As described above, the invention has the beneficial effects that:
1. the combined ore coke grooves are arranged in a concentrated manner, so that the arrangement is compact and reasonable, the occupied area is small, and a larger space is reserved for other necessary facilities; the centralized arrangement avoids or reduces the material drop times, reduces the crushing and dust pollution of raw materials, saves the engineering quantity and reduces the one-time investment cost.
2. Ore tank and burnt groove distribute in the both ends of joint ore burnt groove, and the subregion sets up, is convenient for the concentrated feed of coke and ore, simplifies the feed flow, also is convenient for the concentrated collection and utilization of coke dust.
3. The raw material areas are arranged in a concentrated way, which is more beneficial to the control and treatment of dust pollution sources.
Drawings
FIG. 1 is a schematic view of a process arrangement according to an embodiment of the present invention;
FIG. 2 is a schematic illustration of the arrangement of an empty space between the coke drum zone and the ore zone of FIG. 1;
FIG. 3 is a schematic top view of FIG. 2;
FIG. 4 is a schematic illustration of an elevational arrangement (a service beam transverse arrangement) of an embodiment of the invention;
FIG. 5 is a side view of FIG. 4;
FIG. 6 is a schematic illustration of an elevational arrangement (a service beam longitudinal arrangement) of an embodiment of the invention;
fig. 7 is a side view of fig. 6.
Part number description:
1-a coke tank; 2-a mine tank; 3-feeding and screening devices; 4-a weighing device; 5-a main material adhesive tape machine under the groove; 6-a back-ore adhesive tape machine; 7-a back-focus adhesive tape machine; 8-empty spans; 9-a coke feeding belt conveyor; 10-an ore feeding adhesive tape machine; 11-hoisting equipment; 12-a pre-chute coke transfer station; 13-a pre-tank ore transfer station; 14-a coke dust removal pipeline; 15-an ore dust removal pipeline; 16-a three-way distributor; 17-a driving device; 18-a coke breeze bin; 19-a powder ore bin; 20-a main remineralization adhesive tape machine; 21-a main coke returning adhesive tape machine; 22-service beam.
Detailed Description
Further advantages and effects of the present invention will become apparent to those skilled in the art from the disclosure of the present invention, which is described by the following specific examples.
Examples
As shown in fig. 1 to 7, a combined ore coke tank arrangement process for a blast furnace group, which is a blast furnace group with at least three blast furnaces, includes a combined ore coke tank, a tank lower charging system and a return system;
wherein the combined ore coke tank comprises at least three blast furnace ore coke tank units which are longitudinally arranged (i.e. in the front-back direction in fig. 1) in parallel, the blast furnace ore coke tank units are longitudinally adjacent and connected, each blast furnace ore coke tank unit corresponds to a blast furnace and is used for feeding a blast furnace, and each blast furnace ore coke tank unit comprises a plurality of ore tanks 2 and a plurality of coke tanks 1 which are transversely arranged in a row (i.e. one line);
each blast furnace ore coke tank unit is divided into an ore tank area and a coke tank area along the transverse direction (namely the left-right direction in fig. 1, 4 and 6), wherein the ore tank area is close to a first end of the blast furnace ore coke tank unit along the transverse direction, and the coke tank area is close to a second end of the blast furnace ore coke tank unit along the transverse direction; a plurality of ore tanks 2 of the ore tank area are arranged in a transverse direction, coke tanks 1 of the coke tank area are arranged in a 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-tank feeding system comprises an under-tank feeding device and a main material tape machine, a set of under-tank feeding devices are arranged in a mine tank 2 of each blast furnace ore coke tank unit, a set of under-tank feeding devices are arranged in a coke tank 1, the number of the under-tank feeding devices is equal to the sum of the number of the mine tank 2 and the number of the coke tank 1, a set of under-tank main material tape machine 5 is correspondingly arranged in each blast furnace ore coke tank unit, namely, the number of the under-tank main material tape machines 5 is the same as that of the blast furnaces, coke and ore are respectively fed to the blast furnaces by the corresponding under-tank feeding devices, namely, the under-tank main material tape machines 5;
the material returning system comprises a plurality of sets of ore returning adhesive tape machines 6 and a plurality of sets of coke returning adhesive tape machines 7, wherein each blast furnace ore coke tank unit is provided with one set of ore returning adhesive tape machine 6 for returning fine ore and one set of coke returning adhesive tape machine 7 for returning fine coke; the number of the ore returning adhesive tape machine 6 and the coke returning adhesive tape machine 7 respectively correspond to the number of the blast furnace ore coke tank units.
The combined ore coke tank is arranged in a concentrated way, so that the arrangement is compact and reasonable, the occupied area is small, and a larger space is reserved for other necessary facilities; the secondary transportation of raw materials is reduced, the material dropping times are avoided or reduced, the crushing and dust pollution of the raw materials are reduced, the engineering quantity is saved, the powder content is reduced, the screening pressure under a groove is relieved, and conditions are created for the forward running in the furnace; and the one-time investment cost is reduced. The raw material areas are arranged in a concentrated way, which is more beneficial to the control and treatment of dust pollution sources. In the drawing of this example, 3 three blast furnace ore coke tank units are illustrated, and the three blast furnaces are corresponded, and in other embodiments, a plurality of blast furnaces and a plurality of blast furnace ore coke tank units may be adopted.
Each blast furnace ore tank 2 and coke tank 1 are respectively arranged at two ends of the combined ore and coke tank, and are arranged in a partition mode, so that raw materials and fuels come from different directions, centralized feeding of coke and ore is facilitated, feeding flow before the tank is simplified, dust removal of the ore tank 2 and the coke tank 1 can be separately arranged, and recycling of coke dust removal ash is facilitated.
In one embodiment, the return system further comprises a set of main return focal taping machines 21 and a set of main return mineral taping machines 20; all blast furnace ore coke tank units share a set of main return ore adhesive tape machine 20 and a set of main return coke adhesive tape machine 21; the undersize powder of each blast furnace ore coke tank unit is conveyed to a shared main return ore belt conveyor 20 through a corresponding return ore belt conveyor 6, and is returned by the main return ore belt conveyor 20; the undersize powder of each blast furnace ore coke tank unit is conveyed to a common main coke returning adhesive tape machine 21 through a corresponding coke returning adhesive tape machine 7, and is returned by the main coke returning adhesive tape machine 21.
The combined material returning system shares a set of main material returning adhesive tape machine, thereby simplifying the arrangement of external facilities, comprehensively utilizing equipment and saving comprehensive investment.
The feeding device under the tank comprises a feeding and screening device 3 and a weighing device 4, and the weighing device 4 can adopt existing equipment such as a weighing hopper.
In this example, the undersize powder of each blast furnace ore coke tank unit is respectively returned to two transverse ends of the combined ore coke tank by the corresponding ore return adhesive tape machine/returning adhesive tape machine, and is combined to the corresponding main ore return adhesive tape machine/main coke return adhesive tape machine 21 outside the ore tank 2 and the coke tank 1, and is conveyed into the storage bin by the main ore return adhesive tape machine 20/main coke return adhesive tape machine 21.
Specifically, undersize powder ore of each blast furnace ore coke tank unit is returned to a second end (right end in fig. 1) of the combined ore coke tank transversely by a return rubber belt machine 6, and is input into a shared powder ore bin 19 by a shared set of main return rubber belt machines 20; the undersize coke mine of each blast furnace ore coke tank unit is returned to the first end (left end in fig. 1) of the combined ore coke tank in the transverse direction by a coke returning tape machine 7, and is input into a common coke breeze bin 18 by a common main coke returning tape machine 21. The structure is convenient for the concentrated return of powder, reduces equipment and saves cost. And returns from different directions, thereby being convenient for orderly arrangement and smooth operation of the equipment.
In one embodiment, the three-way distributor 16 is arranged at the head of the material returning adhesive tape machine of each blast furnace ore coke tank unit, 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 common main return material adhesive tape machine fails, return ores and return coke can fall to the ground urgently, and the production of the blast furnace is not affected. Namely, the head part of the return adhesive tape machine 6 of each blast furnace ore coke tank unit is provided with a three-way distributor 16, one path of the three-way distributor 16 is connected to the main return adhesive tape machine 20, and the other path of the three-way distributor falls to the ground; the head of the coke returning adhesive tape machine 7 of each blast furnace ore coke tank unit is provided with a three-way distributor 16, one path of the three-way distributor 16 is connected to the main coke returning adhesive tape machine 21, and the other path of the three-way distributor falls to the ground.
In one embodiment, when the empty span 8 is not available, all ore tanks 2 and coke tanks 1 of each blast furnace ore coke tank unit are longitudinally arranged side by side in a column sharing mode, and the column sharing mode is supported through a common supporting structure, so that the engineering quantity is reduced; when the empty span 8 exists, the coke tank area and the ore tank area are separated, all ore tanks 2 of each blast furnace ore coke tank unit are longitudinally arranged side by side in a column sharing mode, and all coke tanks 1 of each blast furnace ore coke tank unit are longitudinally arranged side by side in a column sharing mode.
In one embodiment, the blast furnace ore coke tank units are communicated along the longitudinal trough of the same station (left and right direction in fig. 4 and 6), so as to form a standby relation, namely, the corresponding discharge troughs are communicated longitudinally. The stock emergency forms a pairwise backup relationship to replenish stock from adjacent silos. As shown in fig. 3, 4 and 6.
In one embodiment, a space is arranged between the coke tank area and the ore tank area of each blast furnace ore coke tank unit along the transverse direction, and the space forms a space span 8. As shown in fig. 2 and 3. An empty span is arranged between the ore tank area and the coke tank area, so that equipment on the tank is convenient to arrange, equipment under the tank is convenient to overhaul, hoist and mount and ventilation pipeline are convenient to arrange.
Specifically, a space span 8 is arranged between the ore tank 2 and the coke tank 1 of each blast furnace ore coke tank unit, so that the driving device 17 of the feeding belt conveyor on the tank is 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 dust removing pipelines of the middle ore tank 2 and the coke tank 1 are also conveniently arranged.
Specifically, each blast furnace ore coke tank unit is provided with a dust removal pipeline, and at least one part of the dust removal pipeline of the blast furnace ore coke tank unit is led out from the empty span 8. In this example, among all the blast furnace ore coke tank units arranged in the longitudinal direction, the dust removing pipes of the blast furnace ore coke tank unit between the first and last are led out from the empty span 8, and the dust removing pipes of the blast furnace ore coke tank unit between the first and last are led out from the empty span 8 or are led out from the sides (i.e. the front and back sides of the combined ore coke tank), wherein the dust removing pipes comprise a coke dust removing pipe 14 and an ore dust removing 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 belt conveyor 9 and an ore feeding belt conveyor 10, and the ore feeding belt conveyor 10 and the coke feeding belt conveyor 9 are respectively provided with respective discharging cars; the ore transfer station 13 before the trough and the coke transfer station 12 before the trough are respectively arranged outside the two transverse ends of the combined ore coke trough, namely, the ore transfer station 13 before the trough is arranged outside the right end of the combined ore coke trough in fig. 1, and the coke transfer station 12 before the trough is arranged outside the left end of the combined ore coke trough.
Wherein the coke feeding belt conveyor 9 and the ore feeding belt conveyor 10 are arranged opposite to each other, the ore feeding belt conveyor 10 is transversely arranged above the ore tank 2, and the ore transfer station 13 before the tank feeds the ore to the ore tank 2 from the first end (the ore is conveyed by moving in the direction from the first end to the second end) through the ore feeding belt conveyor 10, namely, the ore is conveyed leftwards from the ore transfer station 13 before the tank on the right side; the coke feed belt conveyor 9 is arranged above the coke drum 1 in the transverse direction, and the pre-drum coke transfer station 12 feeds the coke drum 1 from the second end (moves from the second end to the first end for conveying) through the coke feed belt conveyor 9, i.e. the coke is conveyed rightward from the left pre-drum coke transfer station 12. A set of coke feeding belt conveyor 9 and a set of ore feeding belt conveyor 10 are arranged on each blast furnace ore coke tank unit tank, or the adjacent blast furnace ore coke tank units share a set of coke feeding belt conveyor 9 and a set of ore feeding belt conveyor 10.
The feeding system on the tank simplifies the feeding flow before each tank of the blast furnace group, and has smooth logistics transportation, less transportation times and reduced investment of the feeding system. The combined feeding reduces the powder content of the raw materials entering the furnace, relieves the screening pressure under the tank and creates conditions for the smooth running in the furnace.
In this case, the drives 17 of the coke feed belt conveyor 9 and the ore feed belt conveyor 10 are arranged in the region of the hollow span 8.
The combined ore coke tank bottom is longitudinally or transversely provided with more than 10t of lifting equipment 11 for integrally lifting the equipment such as the tank bottom feeding and screening device 3.
As shown in fig. 4 and 5, in one embodiment, an overhaul beam 22 and a lifting device 11 are arranged below the combined ore coke tank, the lifting device 11 is installed on the overhaul beam 22 and can move along the overhaul beam 22, and the lifting device 11 can be a lifting device 11; when the overhaul beams 22 are transversely arranged, the hoisting equipment 11 hoistes equipment to be overhauled (such as a feeder, a vibrating screen and the like of the feeding and screening device 3) into and out of the empty span 8; a set of hoisting equipment 11 is respectively arranged below the ore tank area and below the coke tank area of each blast furnace ore coke tank unit, namely, each blast furnace ore coke tank unit is provided with two sets of hoisting equipment 11.
As shown in fig. 6 and 7, in another embodiment, the overhaul beams 22 are longitudinally arranged, the lifting devices 11 lift the equipment to be overhauled in and out from two sides of the combined ore coke tank (i.e. the front-back direction of fig. 1), a set of common lifting devices 11 are arranged below a column of tanks of the same station of each blast furnace ore coke tank unit, and the number of the lifting devices 11 is the same as that of the tanks in the transverse rows.
The invention has compact and reasonable arrangement of the whole process flow, clear functional partition, smooth logistics transportation and less transportation times, reduces the production cost of raw materials, relieves the screening pressure under a groove and reduces the powder content of raw materials entering a furnace. The joint arrangement saves the occupied area and reduces the one-time investment of engineering. The raw material areas are arranged in a concentrated way, which is more beneficial to the control and treatment of dust pollution sources. Each blast furnace raw material unit can be made into spare, and the phenomenon of yield reduction or damping down caused by raw material shortage is reduced.
The invention can be widely applied to the construction of a plurality of blast furnace groups with the same technical parameters in a certain land synchronously, has good construction environment, reasonable layout, low investment, smooth and simple logistics and small occupied area, and has wide application prospect and great economic benefit.
Modifications and variations may be made to the above-described embodiments by those skilled in the art without departing from the spirit and scope of the invention. Accordingly, it is intended that all equivalent modifications and variations of the invention be covered by the claims, which are within the ordinary skill of the art, be within the spirit and scope of the present disclosure.
Claims (10)
1. A combined ore coke tank arrangement process for a blast furnace group is characterized in that: the device comprises a combined ore coke tank, a tank discharging and feeding system, a returning system and a tank feeding system, wherein the blast furnace group comprises at least three blast furnaces;
the combined ore coke tank comprises at least three blast furnace ore coke tank units which are longitudinally arranged in parallel, each blast furnace ore coke tank unit corresponds to a blast furnace, and each blast furnace ore coke tank unit comprises a plurality of ore tanks and a plurality of coke tanks which are transversely arranged in a row; each blast furnace ore coke tank unit is transversely divided into an ore tank area and a coke tank area, wherein the ore tank area is close to a first end of the blast furnace ore coke tank unit in the transverse direction, and the coke tank area is close to a second end of the blast furnace ore coke tank unit in the transverse direction;
the under-tank feeding system comprises an under-tank feeding device and a main material belt conveyor, wherein a set of under-tank feeding devices are respectively arranged in a mine tank and a coke tank of each blast furnace mine coke tank unit, and a set of under-tank main material belt conveyor is correspondingly arranged in each blast furnace mine coke tank unit;
the material returning system comprises a mineral return adhesive tape machine and a coke return adhesive tape machine; each blast furnace ore coke tank unit is provided with one set of ore return belt conveyor and one set of coke return belt conveyor;
a space is arranged between the coke tank areas of each blast furnace ore coke tank unit along the transverse direction, and the space forms a space span; the on-tank feeding system comprises a pre-tank ore transfer station, a pre-tank coke transfer station, a coke feeding belt conveyor, an ore feeding belt conveyor and a discharging car, wherein the pre-tank ore transfer station and the pre-tank coke transfer station are respectively arranged outside two transverse ends of the combined ore coke tank, the ore feeding belt conveyor is transversely arranged above the ore tank, and the pre-tank ore transfer station feeds the ore tank from a first end through the ore feeding belt conveyor; the coke feeding belt conveyor is transversely arranged above the coke tank, and the coke transfer station in front of the tank feeds the coke tank from the second end through the coke feeding belt conveyor;
the coke feeding belt conveyor and the ore feeding belt conveyor are arranged in opposite directions, and driving devices of the coke feeding belt conveyor and the ore feeding belt conveyor are arranged in the empty cross region;
the material tanks of the blast furnace ore coke tank units are arranged in a row along the longitudinal direction, and the material tanks of the same station of the blast furnace ore coke tank units are communicated along the longitudinal direction to form a standby relation.
2. The combined ore coke tank arrangement process for a blast furnace group according to claim 1, characterized in that: the material returning system further comprises a main ore returning adhesive tape machine and a main coke returning adhesive tape machine, and all blast furnace ore coke tank units share the main ore returning adhesive tape machine and the main coke returning adhesive tape machine; the undersize powder of each blast furnace ore coke tank unit is conveyed to a common main ore return belt conveyor/main coke return belt conveyor through a corresponding ore return belt conveyor/coke return belt conveyor, and is returned out by the main ore return belt conveyor/main coke return belt conveyor.
3. The combined ore coke tank arrangement process for a blast furnace group according to claim 2, characterized in that: undersize powder ore of each blast furnace ore coke tank unit is returned to one transverse end of the combined ore coke tank through a respective ore return belt conveyor, and is input into a shared powder ore bin through a shared main ore return belt conveyor; the undersize coke mine of each blast furnace ore coke tank unit is returned to the other transverse end of the combined ore coke tank through the respective coke returning adhesive tape machine, and is input into the shared coke breeze bin through the shared main coke returning adhesive tape machine.
4. The combined ore coke tank arrangement process for a blast furnace group according to claim 1, characterized in that: each blast furnace ore coke tank unit is provided with a dust removing pipeline, and at least a part of the dust removing pipelines of the blast furnace ore coke tank units are led out from the empty span.
5. The combined ore coke tank arrangement process for a blast furnace group according to claim 4, wherein: among all the blast furnace ore coke tank units arranged longitudinally, the dust removing pipeline of the blast furnace ore coke tank unit between the first and the last is led out from the empty span.
6. The combined ore coke tank arrangement process for a blast furnace group according to claim 2, characterized in that: the head of the material returning adhesive tape machine of each blast furnace ore coke tank unit is provided with a three-way distributor, 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.
7. The combined ore coke tank arrangement process for a blast furnace group according to claim 1, characterized in that: all ore tanks and coke tanks of the blast furnace ore coke tank units are longitudinally arranged side by side in a column sharing way; or all ore tanks of each blast furnace ore coke tank unit are longitudinally arranged in a side-by-side co-column manner, and all coke tanks of each blast furnace ore coke tank unit are longitudinally arranged in a side-by-side co-column manner.
8. The combined ore coke tank arrangement process for a blast furnace group according to claim 1, characterized in that: the combined type ore coke tank is characterized in that an overhaul beam and hoisting equipment are arranged below the combined type ore coke tank, the hoisting equipment is arranged on the overhaul beam, when the overhaul beam is transversely arranged, the hoisting equipment suspends the equipment to be overhauled from the empty span, and a set of hoisting equipment is respectively arranged below the ore tank area and below the coke tank area of each blast furnace ore coke tank unit.
9. The combined ore coke tank arrangement process for a blast furnace group according to claim 1, characterized in that: the combined type ore coke tank is characterized in that an overhaul beam and hoisting equipment are arranged below the combined type ore coke tank, the hoisting equipment is arranged on the overhaul beam, when the overhaul beam is longitudinally arranged, the hoisting equipment is used for hoisting equipment to be overhauled from the two sides of the combined type ore coke tank, and a set of common hoisting equipment is arranged below the same station tank of each blast furnace ore coke tank unit.
10. The combined ore coke tank arrangement process for a blast furnace group according to claim 1, characterized in that: the feeding device under the groove comprises a feeding device, a screening device and a weighing device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010999703.5A CN111996323B (en) | 2020-09-22 | 2020-09-22 | Combined ore coke tank arrangement process for blast furnace group |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010999703.5A CN111996323B (en) | 2020-09-22 | 2020-09-22 | Combined ore coke tank arrangement process for blast furnace group |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN111996323A CN111996323A (en) | 2020-11-27 |
| CN111996323B true CN111996323B (en) | 2023-11-28 |
Family
ID=73475612
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010999703.5A Active CN111996323B (en) | 2020-09-22 | 2020-09-22 | Combined ore coke tank arrangement process for blast furnace group |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111996323B (en) |
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.炼铁.2016,(第04期),第45-48页. * |
| 文辉正 ; .两座高炉的矿焦槽工艺布置规划设计的探讨.钢铁技术.2011,(第04期),全文. * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN111996323A (en) | 2020-11-27 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104590840A (en) | Matrix type sorting system | |
| CN102241337B (en) | Bulk material stacking, storing and taking system | |
| CN112390035A (en) | Material-distributing type blanking ceramic raw material uniformly-mixing and tiling system and method | |
| CN101955058A (en) | Easily-maintained rubber belt conveyor and buffering carrier roller set bracket thereof | |
| CN209752802U (en) | Multi-station-point proportioning and mixing type mixing system | |
| CN212426088U (en) | Combined type ore coke groove arrangement structure for blast furnace group | |
| CN111996323B (en) | Combined ore coke tank arrangement process for blast furnace group | |
| CN101792835B (en) | Feeding system for blast furnace ore and coke channel system | |
| CN204400032U (en) | Matrix form logistics Automated Sorting System | |
| CN203199686U (en) | Integration recovery processing system of warehousing materials | |
| CN203200281U (en) | Under-groove material supplying and proportioning integrated system of blast furnace | |
| CN219785547U (en) | Modularized sand stone vibration screening storage and supply system | |
| CN103143295B (en) | Lime briquetting production line | |
| CN117495234A (en) | Bulk cargo transportation centralized control method | |
| CN110239971B (en) | Coal conveying and blending system for large-scale coal-fired boiler group | |
| CN101966936B (en) | Stack yard layout method | |
| CN102061347B (en) | In-series merging arrangement process for two blast furnace ore coke groove systems | |
| CN214115342U (en) | Environment-friendly accurate feeding cooling system in float production process | |
| CN201686702U (en) | Feeding device for blast furnace ore and coke groove system | |
| US10214787B2 (en) | Hot-briquetting installation | |
| CN101538625A (en) | Combination technique arrangement of two coke and ore tank systems | |
| CN218910409U (en) | Double-row ore coke tank system for three-seat blast furnace | |
| CN112390034A (en) | Point-type blanking ceramic raw material uniformly-mixing and flatly-paving system and method | |
| CN220219121U (en) | Feeding device of stirring station | |
| CN2295750Y (en) | Store type raw material homogenizing silo |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |