CN115595393A - Device and method for melting iron-containing materials in main iron runner of blast furnace - Google Patents
Device and method for melting iron-containing materials in main iron runner of blast furnace Download PDFInfo
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- CN115595393A CN115595393A CN202211219154.0A CN202211219154A CN115595393A CN 115595393 A CN115595393 A CN 115595393A CN 202211219154 A CN202211219154 A CN 202211219154A CN 115595393 A CN115595393 A CN 115595393A
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- iron
- blast furnace
- runner
- main
- belt conveyor
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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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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P10/00—Technologies related to metal processing
- Y02P10/20—Recycling
Abstract
The invention provides a device and a method for melting iron-containing materials in a main iron runner of a blast furnace, which relate to the technical field of iron-making blast furnace production and comprise a storage bin, a belt conveyor and a small receiving hopper, wherein the bottom of the storage bin is provided with a feed opening, the output end of the feed opening faces the belt conveyor, the output end of the belt conveyor faces a feed inlet of the small receiving hopper, and the output end of the small receiving hopper faces the main iron runner; a blast furnace body is arranged at one side of the main iron runner, an iron notch is arranged at one side of the blast furnace body, and the iron notch is communicated with the main iron runner; the iron tap hole is provided with the storage bin at the spare position on the periphery of the iron notch, iron-containing materials are added into the storage bin at one time by using a casting house crane, and the iron-containing materials in the storage bin are conveyed into the small receiving hopper above the main iron runner by using the belt conveyor and directly fall into the main iron runner for melting, so that the use frequency of the casting house crane is favorably reduced, and the normal operation of other operations is ensured.
Description
Technical Field
The invention relates to the technical field of iron-making blast furnace production, in particular to a device and a method for melting iron-containing materials in a main iron runner of a blast furnace.
Background
With the continuous development of blast furnace iron-making technology, especially in the production process of medium and large blast furnaces, the control of a thermal system has a quite important influence on the smooth operation of the blast furnace. Under the premise of a stable thermal system, the temperature of the iron slag is relatively stable, and the temperature of the iron slag can reach more than 1500 ℃ generally. Most converter steelmaking does not need such high molten iron temperature, which causes the waste of molten iron temperature;
the current part blast furnace directly utilizes simple and easy devices such as crane and chute to carry out the sluicing in directly adding main iron runner with broken iron-containing material, because be the continuous sluicing operation, can lead to the use frequency of cast house crane to be fairly high, cases such as accident are constantly appeared to frequent initiation of crane fault rate, secondly, use crane control chute when adding iron-containing material operation in main iron runner, need control the chute angle according to the flow of material unloading to main iron runner in the chute, accomplish the even main iron runner of adding of material hardly. The invention provides a device and a method for melting iron-containing materials in a main iron runner of a blast furnace, which solve the problems in the prior art because the iron-containing materials are not melted timely in the main iron runner due to uneven adding speed, the main iron runner is blocked, the iron-containing materials are not smoothly passed through the main iron runner, and other process accidents occur.
Disclosure of Invention
In order to solve the problems, the invention provides a device and a method for melting iron-containing materials by a main iron runner of a blast furnace, which are beneficial to reducing the use frequency of cranes in a cast house and ensuring the normal operation of other operations.
In order to realize the purpose of the invention, the invention is realized by the following technical scheme: a device for melting iron-containing materials in a main iron runner of a blast furnace comprises a storage bin, a belt conveyor and a small receiving hopper, wherein a feed opening is formed in the bottom of the storage bin, the output end of the feed opening faces the belt conveyor, the output end of the belt conveyor faces a feed opening of the small receiving hopper, and the output end of the small receiving hopper faces the main iron runner;
the blast furnace comprises a main iron runner, a blast furnace body is arranged at one side of the main iron runner, an iron notch is formed in one side of the blast furnace body, and the iron notch is communicated with the main iron runner.
The further improvement lies in that: the installation positions of the storage bin and the belt conveyor are the air port platform or the vacant position on one side of the iron notch, and the installation position of the small receiving hopper is the platform above the main iron runner.
The further improvement lies in that: the feed bin is one of the single storehouse body, the two storehouse bodies, and is equipped with the solenoid valve on the discharge gate of feed bin.
The further improvement is that: one side of the bin discharge port is provided with a bin wall vibrator, and the bin wall vibrator is used for vibrating the discharge port to assist blanking.
The further improvement lies in that: the belt conveyor runs through the drive of a variable frequency motor, and a speed regulator control panel is connected to the variable frequency motor.
A method for melting iron-containing materials in a main iron runner of a blast furnace comprises the following steps:
the method comprises the following steps: arranging a storage bin at a vacant position around an iron notch, and adding iron-containing materials into the storage bin at one time by using a casting house crane;
step two: a feed opening is arranged at the bottom of the storage bin and is connected with a belt conveyor for discharging;
step three: when the iron notch is tapped, after the main iron runner is slagged, starting the belt conveyor to bring iron-containing materials into the small receiving hopper;
step four: the iron-containing materials fall into the main iron runner from the output end of the small receiving hopper to be melted;
step five: and when tapping is finished, closing the belt conveyor to enter a standby state, and supplementing corresponding iron-containing materials to the storage bin.
The further improvement lies in that: and in the second step, when the blanking of the blanking opening is difficult, the bin wall vibrator is opened to vibrate the blanking opening to assist the blanking.
The further improvement is that: and in the third step, conveying the iron-containing materials in the storage bin into a small receiving hopper above the main iron runner at a constant speed by using a belt conveyor.
The further improvement lies in that: in the fourth step, in the melting process, according to the furnace temperature of the blast furnace body and the melting speed of iron-containing materials in the main iron runner, the variable frequency motor is adjusted by using the control panel of the speed regulator, so that the feeding speed of the belt conveyor is changed.
The beneficial effects of the invention are as follows:
1. the invention utilizes the vacant position on the periphery of the taphole to arrange the bin, iron-containing materials are added into the bin at one time by utilizing the cast house crane, and the belt conveyor is utilized to convey the iron-containing materials in the bin into the small receiving hopper above the main iron runner, so that the iron-containing materials directly fall into the main iron runner to be melted, thereby being beneficial to reducing the use frequency of the cast house crane and ensuring the normal operation of other operations.
2. The invention can ensure that the iron-containing materials are uniformly added into the main iron runner by utilizing the uniform-speed conveying of the belt conveyor, so that the temperature of the molten iron is more stable after the punching operation.
3. The invention reduces the labor intensity and operation risk of operators, realizes the automation of punching operation, and only needs to control the belt conveyor and the bin wall vibrator.
4. The invention does not need a large amount of containers to store iron-containing materials, only needs one storage bin and is cleaner and tidier in the operation site.
Drawings
FIG. 1 is a front view of the present invention;
FIG. 2 is a schematic top view of a storage bin of the present invention;
figure 3 is a schematic side view of a bin of the present invention.
Wherein: 1. a storage bin; 2. a belt conveyor; 3. a small receiving hopper; 4. a main iron runner; 5. a blast furnace body; 6. tapping; 7. a bin wall vibrator; 8. a variable frequency motor; 9. and a control panel of the speed regulator.
Detailed Description
In order to further understand the present invention, the following detailed description will be made with reference to the following examples, which are only used for explaining the present invention and are not to be construed as limiting the scope of the present invention.
Example one
According to the drawings of fig. 1, 2 and 3, the embodiment provides a device for melting iron-containing materials in a main iron runner of a blast furnace, which comprises a storage bin 1, a belt conveyor 2 and a small receiving hopper 3, wherein a feed opening is formed in the bottom of the storage bin 1, the output end of the feed opening faces the belt conveyor 2, the output end of the belt conveyor 2 faces the feed opening of the small receiving hopper 3, and the output end of the small receiving hopper 3 faces a main iron runner 4;
the blast furnace comprises a main iron runner 4, and is characterized in that a blast furnace body 5 is arranged at one side of the main iron runner 4, an iron notch 6 is arranged at one side of the blast furnace body 5, and the iron notch 6 is communicated with the main iron runner 4. When the iron-containing material storage bin is used, the movable storage bin 1 is arranged at the peripheral vacant position of the iron notch 6, and iron-containing materials are added into the storage bin 1 at one time by using a casting house crane. The feed opening is arranged at the bottom of the storage bin 1, the feed opening is connected with the belt conveyor 2, iron-containing materials in the storage bin 1 are conveyed to the small receiving hopper 3 above the main iron runner 4 by the belt conveyor 2 at a constant speed, the iron-containing materials are directly dropped into the main iron runner 4 through the small receiving hopper 3 fixed above the main iron runner 4 to be melted, and when tapping is completed, the belt conveyor 2 is closed to enter a standby state and corresponding iron-containing materials are supplemented to the storage bin 1.
The installation positions of the storage bin 1 and the belt conveyor 2 are the vacant positions on one side of the iron notch 6, and the installation position of the small receiving hopper 3 is the platform above the main iron runner 4. Build the feed bin near the iron notch, 1 can confirm 1 size and volume of feed bin according to place and demand, and 1 mounted position of feed bin and 2 mounted positions of belt feeder set up near iron notch 6, receive 3 positions of small dipper and set up at 4 top platforms of main iron runner, avoid other equipment.
The feed bin 1 is a double-bin body, and a discharge port of the feed bin 1 is provided with an electromagnetic valve. One side of the discharge hole of the storage bin 1 is provided with a bin wall vibrator 7, and the bin wall vibrator 7 is used for vibrating the discharge hole to assist blanking. The bin wall vibrator 7 is arranged at the feed opening of the bin 1, so that iron-containing materials in the bin 1 can be fed smoothly.
The belt conveyor 2 is driven to operate by a variable frequency motor 8, and a speed regulator control panel 9 is connected to the variable frequency motor 8. The driving motor of the belt conveyor 2 selects the variable-speed variable-frequency motor 8 to drive, and the conveying speed of the belt conveyor 2 can be adjusted according to actual requirements (the furnace temperature and the melting speed of iron-containing materials in the main iron runner 4) to ensure that the iron-containing materials uniformly fall into the small receiving hopper 3.
Example two
According to the illustration of fig. 1, the present embodiment proposes a method for melting iron-containing materials in a main iron runner of a blast furnace, comprising the following steps:
the method comprises the following steps: the storage bin 1 is arranged at the vacant position around the taphole 6, so that the operation site is cleaner, and the iron-containing materials are added into the storage bin 1 at one time by using a cast house crane; the frequency of the crane in the cast house is reduced, and normal operation of other operations is ensured;
step two: a feed opening is formed in the bottom of the bin 1 and connected with the belt conveyor 2 to discharge materials, and when the feed opening is difficult to discharge materials, the bin wall vibrator 7 is started to vibrate the feed opening to assist in discharging materials;
step three: when the iron notch 6 is tapped, after the main iron runner 4 is slagged, starting the belt conveyor 2, and conveying the iron-containing materials in the storage bin 1 to the small receiving hopper 3 above the main iron runner 4 at a constant speed by using the belt conveyor 2; the temperature of the molten iron is more stable after the punching operation;
step four: the iron-containing materials fall into the main iron runner 4 from the output end of the small receiving hopper 3 to be melted, and in the melting process, the variable frequency motor 8 is adjusted by the speed regulator control panel 9 according to the furnace temperature of the blast furnace body 5 and the melting speed of the iron-containing materials in the main iron runner 4, so that the feeding speed of the belt conveyor 2 is changed;
step five: and when tapping is finished, closing the belt conveyor 2 to enter a standby state, and supplementing corresponding iron-containing materials to the storage bin 1 to prepare for next operation.
According to the invention, the storage bin 1 is arranged at the vacant position around the taphole 6, iron-containing materials are added into the storage bin 1 at one time by using a cast house crane, the iron-containing materials in the storage bin are conveyed into the small receiving hopper 3 above the main iron runner 4 by using the belt conveyor 2 and directly fall into the main iron runner 4 for melting, so that the use frequency of the cast house crane is reduced, the normal operation of other operations is ensured, the uniform conveying of the belt conveyor 2 can ensure that the iron-containing materials are uniformly added into the main iron runner 4, and the molten iron temperature is more stable after the punching operation; meanwhile, the invention reduces the labor intensity of operators and the operation risk, realizes the automation of the punching operation, only needs to control the belt conveyor 2 and the bin wall vibrator 7, improves the punching efficiency compared with the prior external punching technology, does not need a large amount of containers to store iron-containing materials, only needs one bin 1, and is cleaner and tidier in the operation site.
The foregoing shows and describes the general principles, principal features and advantages of the invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are given by way of illustration of the principles of the present invention, but that various changes and modifications may be made without departing from the spirit and scope of the invention, and such changes and modifications are within the scope of the invention as claimed. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (9)
1. The utility model provides a device that is used for blast furnace owner iron runner to melt iron content material, includes feed bin (1), belt feeder (2) and receives material small dipper (3), its characterized in that: a feed opening is formed in the bottom of the stock bin (1), the output end of the feed opening faces the belt conveyor (2), the output end of the belt conveyor (2) faces the feed opening of the small receiving hopper (3), and the output end of the small receiving hopper (3) faces the main iron runner (4);
one side position department of main iron runner (4) is equipped with blast furnace body (5), and one side of blast furnace body (5) is equipped with iron notch (6), iron notch (6) intercommunication to main iron runner (4).
2. The apparatus of claim 1, wherein the iron-containing material is melted in the main iron runner of the blast furnace by: the mounting positions of the storage bin (1) and the belt conveyor (2) are vacant positions on one side of an air port platform or an iron port (6), and the mounting position of the small receiving hopper (3) is a platform above the main iron runner (4).
3. The apparatus of claim 2, wherein the main iron runner of the blast furnace is configured to melt iron-containing material: the storage bin (1) is one of a single bin body and a double bin body, and a discharge hole of the storage bin (1) is provided with an electromagnetic valve.
4. The apparatus of claim 3, wherein the main iron runner of the blast furnace is provided with a melting mechanism for melting iron-containing material, and the melting mechanism comprises: one side of the discharge hole of the storage bin (1) is provided with a bin wall vibrator (7), and the bin wall vibrator (7) is used for vibrating the discharge hole to assist blanking.
5. The apparatus of claim 1, wherein the iron-containing material is melted in the main iron runner of the blast furnace by: the belt conveyor (2) is driven to operate by a variable frequency motor (8), and a speed regulator control panel (9) is connected to the variable frequency motor (8).
6. A method for melting iron-containing materials in a main iron runner of a blast furnace is characterized by comprising the following steps:
the method comprises the following steps: arranging a storage bin (1) at a vacant position on the periphery of an iron notch (6), and adding iron-containing materials into the storage bin (1) at one time by using a casting house crane;
step two: a feed opening is arranged at the bottom of the storage bin (1) and is connected with a belt conveyor (2) for discharging;
step three: when the iron notch (6) is tapped, the belt conveyor (2) is started after the main iron runner (4) sees slag, and iron-containing materials are brought into the small receiving hopper (3);
step four: the iron-containing materials fall into the main iron runner (4) from the output end of the small receiving hopper (3) to be melted;
step five: and when tapping is finished, closing the belt conveyor (2) to enter a standby state, and supplementing corresponding iron-containing materials to the storage bin (1).
7. The method for melting iron-containing materials in a main iron runner of a blast furnace as claimed in claim 6, wherein: in the second step, when the blanking of the blanking opening is difficult, the bin wall vibrator (7) is opened to vibrate the blanking opening to assist the blanking.
8. The method for melting iron-containing materials in a main iron runner of a blast furnace as claimed in claim 7, wherein: in the third step, the iron-containing materials in the storage bin (1) are conveyed into the small receiving hopper (3) above the main iron runner (4) at a constant speed by the belt conveyor (2).
9. The method of claim 8, wherein the iron-containing material is melted in the main iron runner of the blast furnace by: in the fourth step, in the melting process, the feeding speed of the belt conveyor (2) is changed by adjusting the variable frequency motor (8) by the speed regulator control panel (9) according to the furnace temperature of the blast furnace body (5) and the melting speed of the iron-containing materials in the main iron runner (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211219154.0A CN115595393A (en) | 2022-10-08 | 2022-10-08 | Device and method for melting iron-containing materials in main iron runner of blast furnace |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211219154.0A CN115595393A (en) | 2022-10-08 | 2022-10-08 | Device and method for melting iron-containing materials in main iron runner of blast furnace |
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| CN115595393A true CN115595393A (en) | 2023-01-13 |
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| CN202211219154.0A Pending CN115595393A (en) | 2022-10-08 | 2022-10-08 | Device and method for melting iron-containing materials in main iron runner of blast furnace |
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Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3509087A1 (en) * | 1984-09-24 | 1986-04-03 | Tallinskij politechničeskij institut, Tallin | Vibratory dispenser for bulk goods |
| EP1387137A2 (en) * | 2002-07-30 | 2004-02-04 | SMS Demag AG | Apparatus for charging of a blast furnace via conveyor belt |
| CN104404190A (en) * | 2014-11-13 | 2015-03-11 | 甘肃酒钢集团宏兴钢铁股份有限公司 | Molten iron desiliconization agent, pouring device and molten iron desiliconization pretreatment method |
| CN110607407A (en) * | 2019-09-19 | 2019-12-24 | 湖南建鑫冶金科技有限公司 | Energy-saving and yield-increasing method for preheating agglomerated materials by hot flue gas of blast furnace main channel |
| CN215162868U (en) * | 2021-03-25 | 2021-12-14 | 阳春新钢铁有限责任公司 | Energy-saving blast furnace casting house |
| CN216954771U (en) * | 2021-12-30 | 2022-07-12 | 吕梁建龙实业有限公司 | Prevent batching scale unloading system of putty |
| CN114959149A (en) * | 2022-05-22 | 2022-08-30 | 湖南建鑫冶金科技有限公司 | Method for automatically controlling adding amount of lump materials processed by blast furnace main channel |
| CN217533970U (en) * | 2022-07-06 | 2022-10-04 | 山东莱钢永锋钢铁有限公司 | Stable material blanking volume device |
-
2022
- 2022-10-08 CN CN202211219154.0A patent/CN115595393A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3509087A1 (en) * | 1984-09-24 | 1986-04-03 | Tallinskij politechničeskij institut, Tallin | Vibratory dispenser for bulk goods |
| EP1387137A2 (en) * | 2002-07-30 | 2004-02-04 | SMS Demag AG | Apparatus for charging of a blast furnace via conveyor belt |
| CN104404190A (en) * | 2014-11-13 | 2015-03-11 | 甘肃酒钢集团宏兴钢铁股份有限公司 | Molten iron desiliconization agent, pouring device and molten iron desiliconization pretreatment method |
| CN110607407A (en) * | 2019-09-19 | 2019-12-24 | 湖南建鑫冶金科技有限公司 | Energy-saving and yield-increasing method for preheating agglomerated materials by hot flue gas of blast furnace main channel |
| CN215162868U (en) * | 2021-03-25 | 2021-12-14 | 阳春新钢铁有限责任公司 | Energy-saving blast furnace casting house |
| CN216954771U (en) * | 2021-12-30 | 2022-07-12 | 吕梁建龙实业有限公司 | Prevent batching scale unloading system of putty |
| CN114959149A (en) * | 2022-05-22 | 2022-08-30 | 湖南建鑫冶金科技有限公司 | Method for automatically controlling adding amount of lump materials processed by blast furnace main channel |
| CN217533970U (en) * | 2022-07-06 | 2022-10-04 | 山东莱钢永锋钢铁有限公司 | Stable material blanking volume device |
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