CN211282950U - Blast furnace scrap steel feeding and charging system - Google Patents

Blast furnace scrap steel feeding and charging system Download PDF

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Publication number
CN211282950U
CN211282950U CN201922268351.1U CN201922268351U CN211282950U CN 211282950 U CN211282950 U CN 211282950U CN 201922268351 U CN201922268351 U CN 201922268351U CN 211282950 U CN211282950 U CN 211282950U
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scrap steel
feeding
scrap
area
blast furnace
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CN201922268351.1U
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Chinese (zh)
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任伟军
杨泽
邹达基
彭建
董会国
田帅
罗云文
谢金国
董航
戚乐
姜楠
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Chongqing Saidi Engineering Consulting Co ltd
CISDI Engineering Co Ltd
CISDI Shanghai Engineering Co Ltd
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Chongqing Saidi Engineering Consulting Co ltd
CISDI Engineering Co Ltd
CISDI Shanghai Engineering Co Ltd
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Abstract

The utility model discloses a blast furnace scrap steel feeding and charging system, which comprises a scrap steel stacking and unloading area, a scrap steel charging area, a trestle, a feeding device and a blast furnace feeding transmission belt, wherein the scrap steel stacking and unloading area is used for scrap steel unloading and scrap steel stacking; the scrap steel feeding area is provided with a scrap steel feeding device; the trestle spans the upper parts of the scrap steel stacking and discharging area and the scrap steel charging area; the feeding equipment is arranged on the trestle, can move back and forth between the upper part of the scrap steel stacking and unloading area and the upper part of the scrap steel charging area along the trestle and is used for hoisting the scrap steel from the scrap steel stacking and unloading area to the scrap steel charging area; the blast furnace feeding conveying belt passes through the lower part of the scrap steel feeding device and is used for conveying raw materials and scrap steel to the blast furnace. The utility model has the advantages that the area of the scrap steel stacking and unloading area is larger than that of the automobile receiving groove, the scrap steel automobile receiving and unloading are flexible and can be carried along with unloading, and the stacking quantity is relatively large; the feeding process is short, the whole occupied area is small, the arrangement is flexible, and the total investment is low; and the scrap steel is not directly contacted with the belt so as to damage the belt.

Description

Blast furnace scrap steel feeding and charging system
Technical Field
The utility model belongs to the technical field of blast furnace smelting, in particular to blast furnace scrap steel feeding and charging system.
Background
In the blast furnace iron-making production process, iron-containing ores such as sintered ores, pellets and lump ores are generally added into a blast furnace through a feeding main belt conveyor for smelting. In recent years, a large amount of scrap steel is generated in the production, replacement and scrapping processes of various industries, and in order to improve the recovery utilization rate of the scrap steel, save resources, reduce the iron-making ton-iron fuel ratio, save the iron-making cost, increase the yield of molten iron and the like, greater economic benefits are created. Therefore, adding scrap steel into a blast furnace for smelting is also a common mode adopted by many steel enterprises in recent years. However, how to better add the steel scrap into the furnace is also a problem worthy of research, and factors such as steel scrap characteristics, quantitative steel scrap feeding, general diagram arrangement and the like need to be comprehensively considered. At present, a mode commonly adopted by a steel mill is that a scrap steel automobile receiving groove is used for adding scrap steel into a feeding area through facilities such as an underground belt conveyor and a transfer station, but the mode is influenced by factors such as the size of the automobile receiving groove and the limitation of a site, and has the defects of inflexible automobile discharging, queuing and unloading, crowded site, long transportation and feeding processes, high investment, large occupied area and the like.
SUMMERY OF THE UTILITY MODEL
In view of the above shortcomings of the prior art, an object of the present invention is to provide a blast furnace scrap feeding and charging system, which solves the technical problems of inflexible discharging, long transportation and feeding processes.
In order to achieve the above objects and other related objects, the technical solution of the present invention is as follows:
a blast furnace scrap steel feeding and charging system, which comprises,
the scrap steel stacking and unloading area is used for scrap steel unloading and scrap steel stacking;
the scrap steel charging area is positioned on one side of the scrap steel stacking and unloading area and is provided with a scrap steel charging device;
the trestle spans the upper parts of the scrap steel stacking and discharging area and the scrap steel charging area;
the feeding equipment is arranged on the trestle, can move back and forth between the upper part of the scrap steel stacking and unloading area and the upper part of the scrap steel charging area along the trestle and is used for hoisting the scrap steel from the scrap steel stacking and unloading area to the scrap steel charging area;
the blast furnace feeding conveying belt passes through the scrap steel feeding area and is positioned below the scrap steel feeding device and used for conveying raw materials and scrap steel to the blast furnace.
By adopting the structure, the area of the scrap steel stacking and unloading area is larger than that of the automobile receiving groove, and the scrap steel stacking and unloading area has the advantages of flexible unloading and walking along with the incoming scrap steel automobile and relatively large stacking amount; the scrap steel is stockpiled below the bridge, and the feeding equipment covers the whole scrap steel stockpiling area and the whole feeding area, so that the method has the advantages of short feeding process, small whole occupied area, flexible arrangement and low total investment; the scrap steel charging area spans over a charging transmission belt of the blast furnace, and has the advantages of being precisely and uniformly paved on the surface of ore to fully mix the ore, and having little damage to the belt due to the fact that the scrap steel is not directly contacted with the belt.
Optionally, the scrap steel feeding device comprises a scrap steel bin, a feeding mechanism, a weighing mechanism and a feeding mechanism which are sequentially arranged from top to bottom, and the scrap steel fed by the feeding device falls on the scrap steel bin and then falls on the blast furnace feeding conveying belt through the feeding mechanism, the weighing mechanism and the feeding mechanism.
Optionally, the feeding device is an electromagnetic chuck crane or a grab crane.
Optionally, the top of the scrap steel bin is provided with a grid.
Optionally, the scrap box is bucket shaped.
Optionally, a detection element for detecting the amount of the scrap steel is arranged in the weighing mechanism.
Optionally, the scrap stacking and discharging area is provided with a passage for vehicle ingress and egress.
Optionally, the scrap steel dumping area and the scrap steel charging area are located in the same factory building, arranged side by side and separated by a partition wall.
Optionally, the weighing mechanism employs a weighing funnel.
Optionally, the feeding mechanism and the charging mechanism employ a vibrating feeder.
The utility model has the advantages that: the utility model has the advantages that the area of the scrap steel stacking and unloading area is larger than that of the automobile receiving groove, the flexible unloading and following of the scrap steel automobile receiving material unloading is realized, and the stacking quantity is relatively large; the scrap steel is stockpiled below the bridge, and the feeding equipment covers the whole scrap steel stockpiling area and the whole feeding area, so that the method has the advantages of short feeding process, small whole occupied area, flexible arrangement and low total investment; the scrap steel charging area spans over a charging transmission belt of the blast furnace, and has the advantages of being precisely and uniformly paved on the surface of ore to fully mix the ore, and having little damage to the belt due to the fact that the scrap steel is not directly contacted with the belt.
Drawings
Fig. 1 is a schematic view of the vertical arrangement of the embodiment of the present invention.
Fig. 2 is a schematic plan view of an embodiment of the present invention;
fig. 3 is a schematic layout diagram of the feeding area in the embodiment of the present invention.
Description of reference numerals
1-scrap steel stacking and unloading area; 2-a scrap steel charging zone; 3-trestle bridge; 4-feeding equipment; 5-scrap steel bin; 6-a feeding mechanism; 7-a weighing mechanism; 8-a feeding mechanism; 9-blast furnace feeding conveying belt; 10-a grid; 11-scrap steel; 12-partition wall.
Detailed Description
The following description is provided for illustrative purposes, and other advantages and features of the present invention will become apparent to those skilled in the art from the following detailed description.
It should be understood that the terms "upper", "lower", "left", "right", "middle" and "one" used herein are for clarity of description, and are not intended to limit the scope of the invention, but rather the scope of the invention.
Examples
As shown in fig. 1 to fig. 3, the blast furnace scrap feeding and charging system of the embodiment includes a scrap stacking and discharging area 1, a scrap charging area 2, a trestle 3 and a feeding device 4, which are arranged in a stock yard or a factory building, wherein the trestle 3 spans over the scrap stacking and discharging area 1 and the scrap charging area 2 to provide a supporting and walking platform for the feeding device 4; the scrap steel dumping area 1 is provided with a dumping field for dumping scrap steel and stacking the scrap steel 11; the stacking field is positioned below the trestle 3, the scrap steel can be transported to the stacking field through an automobile or a loading vehicle, wherein the trestle 3 can also be a walking platform, a door-shaped beam and the like.
The scrap steel charging area 2 is positioned on one side of the scrap steel stacking and unloading area 1, and the scrap steel charging area 2 is provided with a scrap steel charging device and used for receiving scrap steel conveyed by the charging equipment 4 and charging the scrap steel to a blast furnace charging transmission belt 9.
The feeding equipment 4 is arranged on the trestle 3, can move back and forth between the upper part of the scrap steel stacking and unloading area 1 and the upper part of the scrap steel charging area 2 along the trestle 3, is used for lifting the scrap steel from the scrap steel stacking and unloading area 1 to the scrap steel charging area 2, and can adopt an electromagnetic chuck crane and other structures for the feeding equipment 4.
Blast furnace scrap steel material loading and feeding system still includes blast furnace material loading transmission band 9, and blast furnace material loading transmission band 9 passes through the scrap steel feeding device's of scrap steel feeding zone 2 below for receive the scrap steel that comes from scrap steel feeding device, carry ore raw materials and scrap steel to the blast furnace.
By adopting the structure, the area of the scrap steel stacking and unloading area 1 is larger than that of the automobile receiving groove, and the scrap steel stacking and unloading area has the advantages of flexible unloading and following of the incoming scrap steel automobile and relatively large stacking amount; the waste steel is stacked below the trestle 3, and the feeding device 4 covers the whole waste steel stacking area and the feeding area, so that the waste steel feeding device has the advantages of short feeding flow, small overall occupied area, flexible arrangement (compared with the mode of automobile material receiving and underground belt conveyor conveying), and low total investment; scrap steel charging zone 2 strides over blast furnace material loading transmission band 9, has the precision evenly tile and makes its intensive mixing, and the scrap steel is direct and the belt contact and then little advantage to the injury of belt on the ore surface.
And the unloading of the vehicle in the scrap steel stacking and unloading area 1 is relatively independent of the feeding area, so that the unloading and the feeding are not interfered with each other, and the efficiency is higher.
The scrap steel feeding device comprises a scrap steel bin 5, a feeding mechanism 6, a weighing mechanism 7 and a feeding mechanism 8 which are sequentially arranged from top to bottom, and scrap steel fed by the feeding device 4 falls into the scrap steel bin 5 and then sequentially falls onto a blast furnace feeding conveying belt 9 through the feeding mechanism 6, the weighing mechanism 7 and the feeding mechanism 8.
The scrap steel feeding device spans above the blast furnace feeding conveying belt 9, and is convenient for quantitatively feeding scrap steel to the blast furnace feeding conveying belt 9 through the feeding mechanism 6, the weighing mechanism 7 and the feeding mechanism 8.
Wherein, scrap steel storehouse 5 is the bucket form, and 5 tops in scrap steel storehouse are equipped with steel grid 11, prevent that massive scrap steel from getting into and influencing reinforced smooth and easy degree.
A detection element for detecting the amount of the scrap steel is arranged in the weighing mechanism 7, so that the weight of the scrap steel in the weighing mechanism 7 can be detected, or whether the scrap steel exists or not can be detected, and the feeding amount of the feeding mechanism 8 can be controlled conveniently. When the weighing means 7 is empty of scrap steel, the feeding means 6 above the weighing means 7 feeds the scrap steel in the scrap steel container 5 to the weighing means 7 for storage. The detection element may be a load cell or the like.
As shown in fig. 2, the scrap discharge area 1 and the scrap charging area 2 are located in the same factory or yard, arranged side by side, and separated by a partition wall 12. One side of the stacking field of the waste steel stacking and unloading area 1, which deviates from the waste steel charging area 2, is provided with a channel for vehicles to enter and exit so as to unload the waste steel.
The weighing mechanism 7, the feeding mechanism 6 and the feeding mechanism 8 can be of conventional structures, for example, the weighing mechanism 7 is a weighing funnel with an electronic head scale. The feeding mechanism 6 and the feeding mechanism 8 adopt a vibrating feeder and the like.
The utility model discloses a work flow as follows:
the scrap steel is transported by an automobile or a loading vehicle and stored in a scrap steel stacking and unloading area 1 covered by a trestle 3 in a self-unloading way, and the scrap steel is loaded into a scrap steel bin 5 of a loading area through a loading device 4 arranged on the trestle 3. When scrap steel needs to be added into the blast furnace, the feeding mechanism 8 adds the scrap steel in the weighing mechanism 7 to the ore surface of the blast furnace feeding conveying belt 9 and feeds the scrap steel into the blast furnace together with the ore along with the blast furnace feeding conveying belt 9. When the weighing mechanism 7 is empty of steel scraps, the feeding mechanism 6 above the weighing mechanism feeds the steel scraps in the steel scrap bin 5 to the weighing mechanism 7 for storage.
The unloading, the feeding and the charging of the scrap steel are not affected mutually, and the efficiency is improved. The incoming material unloading of the scrap steel vehicle is flexible and can be carried along with the unloading, the stockpiling amount is relatively large, the material loading flow is short, the occupied area of the scrap steel facility is small, the total investment is low, the scrap steel can be uniformly paved on the surface of the ore to be fully mixed, and the damage of the scrap steel to the belt is small.
The above embodiments are merely illustrative of the principles and effects of the present invention, and are not to be construed as limiting the invention. Modifications and variations can be made to the above-described embodiments by those skilled in the art without departing from the spirit and scope of the present invention. Accordingly, it is intended that all equivalent modifications or changes which may 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 (10)

1. The utility model provides a blast furnace steel scrap material loading and charging system which characterized in that: comprises the steps of (a) preparing a mixture of a plurality of raw materials,
the scrap steel stacking and unloading area is used for scrap steel unloading and scrap steel stacking;
the scrap steel charging area is positioned on one side of the scrap steel stacking and unloading area and is provided with a scrap steel charging device;
the trestle spans the upper parts of the scrap steel stacking and discharging area and the scrap steel charging area;
the feeding equipment is arranged on the trestle, can move back and forth between the upper part of the scrap steel stacking and unloading area and the upper part of the scrap steel charging area along the trestle and is used for hoisting the scrap steel from the scrap steel stacking and unloading area to the scrap steel charging area;
the blast furnace feeding conveying belt passes through the scrap steel feeding area and is positioned below the scrap steel feeding device and used for conveying raw materials and scrap steel to the blast furnace.
2. The blast furnace scrap feeding and charging system according to claim 1, characterized in that: the scrap steel feeding device comprises a scrap steel bin, a feeding mechanism, a weighing mechanism and a feeding mechanism which are sequentially arranged from top to bottom, and scrap steel sent by a feeding device falls into the scrap steel bin and then falls onto a blast furnace feeding conveying belt through the feeding mechanism, the weighing mechanism and the feeding mechanism.
3. The blast furnace scrap feeding and charging system according to claim 1, characterized in that: the feeding equipment is an electromagnetic chuck crane or a grab bucket crane.
4. The blast furnace scrap feeding and charging system according to claim 2, characterized in that: and a grid is arranged at the top of the scrap steel bin.
5. The blast furnace scrap feeding and charging system according to claim 2, characterized in that: the scrap steel bin is bucket-shaped.
6. The blast furnace scrap feeding and charging system according to claim 2, characterized in that: and a detection element for detecting the amount of the scrap steel is arranged in the weighing mechanism.
7. The blast furnace scrap feeding and charging system according to claim 1, characterized in that: and the scrap steel stacking and unloading area is provided with a channel for vehicles to enter and exit.
8. The blast furnace scrap feeding and charging system according to claim 1, characterized in that: the scrap steel stacking and discharging area and the scrap steel charging area are located in the same workshop and arranged side by side and are separated by partition walls.
9. The blast furnace scrap feeding and charging system according to claim 2, characterized in that: the weighing mechanism adopts a weighing funnel.
10. The blast furnace scrap feeding and charging system according to claim 2, characterized in that: the feeding mechanism and the feeding mechanism adopt vibrating feeders.
CN201922268351.1U 2019-12-17 2019-12-17 Blast furnace scrap steel feeding and charging system Active CN211282950U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201922268351.1U CN211282950U (en) 2019-12-17 2019-12-17 Blast furnace scrap steel feeding and charging system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201922268351.1U CN211282950U (en) 2019-12-17 2019-12-17 Blast furnace scrap steel feeding and charging system

Publications (1)

Publication Number Publication Date
CN211282950U true CN211282950U (en) 2020-08-18

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Application Number Title Priority Date Filing Date
CN201922268351.1U Active CN211282950U (en) 2019-12-17 2019-12-17 Blast furnace scrap steel feeding and charging system

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112320577A (en) * 2020-11-04 2021-02-05 新疆八一钢铁股份有限公司 Operation method for improving counterweight tonnage of scrap steel hopper
CN113637818A (en) * 2021-08-10 2021-11-12 广东韶钢松山股份有限公司 Blast furnace scrap steel feeding device and blast furnace scrap steel adding smelting method

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112320577A (en) * 2020-11-04 2021-02-05 新疆八一钢铁股份有限公司 Operation method for improving counterweight tonnage of scrap steel hopper
CN112320577B (en) * 2020-11-04 2022-10-14 新疆八一钢铁股份有限公司 Operation method for improving counterweight tonnage of scrap steel hopper
CN113637818A (en) * 2021-08-10 2021-11-12 广东韶钢松山股份有限公司 Blast furnace scrap steel feeding device and blast furnace scrap steel adding smelting method

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