CN210367767U - Device for adding scrap steel into ladle - Google Patents
Device for adding scrap steel into ladle Download PDFInfo
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- CN210367767U CN210367767U CN201920760879.8U CN201920760879U CN210367767U CN 210367767 U CN210367767 U CN 210367767U CN 201920760879 U CN201920760879 U CN 201920760879U CN 210367767 U CN210367767 U CN 210367767U
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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
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Abstract
The utility model discloses a ladle adds steel scrap device, include along the ladle that the hot metal mixer rail of hot metal mixer rail removed and set up in the bake out furnace of hot metal mixer rail one side heating steel scrap, one side of bake out furnace sets up to bake out furnace upper end feed inlet add the cold charge of steel scrap cold charge add the device and bake out furnace and mix in between the hot metal mixer rail and set up to add the hot material of steel scrap hot metal to the ladle and add the device, it is provided with the wind channel that links to each other with hot-blast import to set up hot-blast import and bake out the inside bottom of stove on the lateral wall of bake out furnace, and the air outlet gathers on the wind channel wall in wind channel, the fixed hot-blast furnace that sets up in bake out furnace one side, and the top that is provided with hot-blast main and hot-blast main between hot-blast furnace and the bake out furnace is provided with the draught fan that draws air from the bake out furnace bleeds, the utility model discloses can, Lowering cost and raising effect.
Description
Technical Field
The utility model relates to a ladle adds steel scrap device belongs to the metallurgical field.
Background
The converter steelmaking uses molten iron, scrap steel and ferroalloy as main raw materials, does not need external energy, and completes the steelmaking process in the converter by means of heat generated by physical heat of molten iron and chemical reaction among molten iron components. Compared with molten iron, the cost of the scrap steel is low, the adding amount of the scrap steel is high, which is equivalent to reducing the smelting cost and improving the production benefit, so that most enterprises hope to add the scrap steel to reduce the molten iron consumption in the converter steelmaking link, reduce the smelting cost and improve the production benefit. However, because the molten iron chemical heat is limited, the adding amount of the scrap steel is too much, the tapping temperature at the smelting end point of the converter cannot meet the requirement, and other heating components need to be added to raise the temperature, so that the temperature cannot be raised, and the waste steel is irrevocably lost, so that how to realize the adding amount of the scrap steel in the limited molten iron chemical heat is a problem to be solved by technical personnel in the technical field.
SUMMERY OF THE UTILITY MODEL
The utility model aims to solve the technical problem that a ladle adds steel scrap device is provided, can heat the broken material of steel scrap, add the ladle through the lifting machine in, realize that the steel scrap addition is many, reduce cost and improve effect's effect.
In order to solve the technical problem, the utility model discloses the technical scheme who adopts is:
the utility model provides a ladle adds steel scrap device, includes along the ladle that the hot-metal mixer tapping track removed and sets up in the stove that toasts of hot-metal mixer track one side heating steel scrap, the one side of toasting the stove sets up adds the device and toasts the hot material that sets up to the ladle and add the hot material of hot-metal mixer track between stove and the hot-metal mixer track to the cold charge that toasts the stove upper end feed inlet and add the steel scrap cold charge and adds the device, set up hot-blast import on the lateral wall of toasting the stove and toast the inside bottom of stove and be provided with the wind channel that links to each other with hot-blast import, densely covered the air outlet on the wind channel wall in wind channel, toast the fixed hot-blast furnace that sets up in stove one side, the top that is provided with hot-blast.
The utility model discloses technical scheme's further improvement lies in: the cold material adding device comprises a cold material bin and a cold material hoister arranged below the cold material bin and used for conveying the cold material of the scrap steel to the baking furnace from the cold material bin, a cold material vibrating feeder is arranged at a discharge port at the lower end of the cold material bin, and the cold material hoister is arranged as a hopper type hoister.
The utility model discloses technical scheme's further improvement lies in: the cold burden lifting machine includes the cold burden hopper that reciprocates along the cold burden track, the cold burden track includes parallel arrangement and upper end to the inner slide and the outer slide of baking oven upper end opening direction slope, is close to the curved arc slide of baking oven direction in the inner slide upper end of baking oven, and the cold burden hopper is walked around behind the cold burden hoist head sheave through wire rope and is connected with the cold burden hoist engine, and the cold burden hopper reciprocates under the drive of cold burden hoist engine.
The utility model discloses technical scheme's further improvement lies in: the cold burden hoist head sheave is articulated through the support and the cold burden hoist head sheave sets up to two.
The utility model discloses technical scheme's further improvement lies in: the lower end discharge port of the baking furnace is provided with a hot material vibrating feeder, and the hot material adding device comprises a hot material elevator which is arranged below the hot material vibrating feeder and used for conveying the hot scrap material to a ladle from the baking furnace.
The utility model discloses technical scheme's further improvement lies in: the hot material hoister comprises a hot material hopper which moves up and down along a hot material rail, the hot material rail comprises an inner slide and an outer slide which are arranged in parallel, the upper end of the inner slide inclines towards the opening direction of the upper end of the ladle, the upper end of the inner slide close to the ladle is an arc-shaped slide which is bent towards the ladle direction, the hot material hopper is connected with a hot material hoister after bypassing the hot material hoister crown block through a steel wire rope, and the hot material hopper moves up and down under the driving of the hot material hoister.
The utility model discloses technical scheme's further improvement lies in: the hot material hoisting head sheave is hinged through a support and is provided with two hot material hoisting head sheaves.
The utility model discloses technical scheme's further improvement lies in: the ladle is fixedly arranged on the ladle car and the ladle car drives the ladle to move back and forth along the tapping track of the mixer.
The utility model discloses technical scheme's further improvement lies in: the air channel comprises an annular main air channel and a branch air channel, wherein the annular main air channel is communicated with the side wall of the baking oven, the branch air channel is communicated with two opposite sides of the main air channel, and the two branch air channels are uniformly distributed in the main air channel.
The utility model discloses technical scheme's further improvement lies in: the hot air pipeline is respectively connected with hot air inlets of the hot air furnace and the baking furnace through flanges.
Due to the adoption of the technical scheme, the utility model discloses the technological progress who gains is:
1. the utility model discloses the cold burden that sets up adds the device and can add the steel scrap cold burden in the baking oven through the cold feed bin, the hot-blast furnace passes through coke oven gas heating air-blast, the draught fan outwards bleeds from baking oven top and forms the air pressure difference, make hot-blast pass through hot-blast pipeline and carry to baking oven heating steel scrap cold burden by the hot-blast furnace, the steel scrap hot burden after baking oven heating adds the device through hot material and adds to the ladle, the ladle moves to the torpedo furnace taphole through the ladle car, add the molten iron, add in the ladle through heating the steel scrap to the definite temperature in adding the ladle, make the molten iron pour the back in the ladle, compare and directly add cold steel scrap, the temperature of iron reduces fewly, under the same condition of temperature drop, the hot steel scrap of adding will be more than the volume of cold steel scrap, reduce the molten iron consumption, low-cost high yield, pass through high temperature simultaneously toasts, the steel water content is, The content of O is relatively low, which is also beneficial to improving the quality of molten steel.
2. The utility model discloses the baker bottom is provided with the wind channel, the wind channel links to each other with hot-blast import and the air outlet of densely arranging on the wind channel wall, hot-blast air outlet on the wind channel wall is blown off along hot-blast import, the wind channel sets up between the opposition both sides in annular main wind channel and the main wind channel that the round formed the intercommunication along the lateral wall, the wind channel makes hot-blast lower extreme that can be full of the baker rapidly from hot-blast import entering, heat lower part steel scrap, hot-blast heating upper portion steel scrap that rises simultaneously, but because stopping of steel scrap makes hot-blast main effect that the heating lower part steel scrap preheats the upper portion steel scrap that plays, the setting in wind channel makes hot-blast can be quicker.
3. The hot air pipeline is respectively connected with hot air inlets on the hot air furnace and the baking furnace through flanges, so that hot air overflow can be prevented, and heat loss is reduced.
4. The discharge gate of baking out the stove lower extreme is provided with hot material vibrating feeder, can will bake out the qualified hot material of steel scrap of stove lower part temperature at the uniform velocity and carry away, and the steel scrap that the upper portion was preheated falls to baking out the stove lower part through the dead weight and continuously heats, and hot material hoist engine passes through wire rope and drives hot material hopper and reciprocate at hot material lifting machine, and the hot material of scrap iron from hot material vibrating feeder output passes through hot material hopper and directly carries to the ladle along hot material lifting machine.
5. The discharge port at the lower end of the cold material bin is provided with a cold material vibrating feeder which can convey cold materials of the scrap steel to a cold material hopper at a constant speed, and the cold material hopper is driven by a cold material winch to be directly conveyed to the baking furnace along a cold material hoister.
Drawings
FIG. 1 is a schematic diagram of the layout of the devices of the present invention;
FIG. 2 is a schematic structural view of the hot blast stove and the cold charge adding device of the present invention;
FIG. 3 is a schematic structural view of a ladle and a hot metal adding device according to the present invention;
FIG. 4 is a schematic view of the internal structure of the oven of the present invention;
FIG. 5 is a schematic view of the baking oven with a cut-away direction A;
the hot metal ladle car, the hot metal hopper, the hot metal track, the hot metal hoist head sheave, the hot metal hoist 6, the hot metal hoist 7, the baking oven, the hot metal vibrating feeder 8, the hot metal vibrating feeder 9, the hot air inlet 10, the hot air furnace 11, the hot air pipeline 12, the draught fan 13, the cold metal hopper 14, the cold metal track 15, the cold metal hoist head sheave 16, the cold metal hoist 17, the cold metal bin 18, the cold metal vibrating feeder 19, and the air duct.
Detailed Description
The present invention will be described in further detail with reference to the following examples:
as shown in fig. 1, a device for adding scrap steel into a ladle comprises a ladle 2 moving along a tapping track of a mixer and a baking furnace 7 arranged on one side of the mixing track for heating scrap steel, as shown in fig. 3, the ladle 2 is fixedly arranged on a ladle car 1, and the ladle car 1 can drive the ladle 2 to move back and forth along the tapping track of the mixer. As shown in fig. 2, set up hot-blast inlet 9 and bake out the fixed hot-blast furnace 10 that sets up in stove 7 one side on the lateral wall of bake out stove 7, the top that is provided with hot-blast main 11 and hot-blast main 11 between hot-blast furnace 10 and the bake out stove 7 is provided with draught fan 12, draught fan 12 outwards bleeds from bake out stove 7 top and forms the atmospheric pressure difference, make hot-blast through hot-blast main 11 by hot-blast furnace 10 blow to bake out stove 7, hot-blast main 11 passes through flange joint with hot-blast inlet 9 on hot-blast furnace 10 and the bake out stove 7, can prevent hot-blast. An air duct 19 is arranged at the junction of the bottom end and the side wall of the baking oven 7, the air duct 19 is connected with the hot air inlet 9, and the cross section of the air duct 19 can be any one of triangular, circular or square. The air duct 19 includes an annular main air duct formed around the side wall of the baking oven 7 for communication and branch air ducts on opposite sides of the main air duct for communication, the branch air ducts are arranged twice and uniformly distributed in the main air duct, the air duct 19 is distributed in a shape like a Chinese character 'mu', and air outlets are densely distributed on the air duct wall of the air duct 19. Hot-blast air outlet along the wind channel wall that passes through hot-blast import 9 blows out, wind channel 19 makes hot-blast lower extreme that can be full of baking oven 7 rapidly from hot-blast import 9 entering along the bottom that is located baking oven 7, heats lower part scrap steel, and hot-blast heating upper portion scrap steel that rises simultaneously, but because the effect that makes hot-blast main play heating lower part scrap steel preheat upper portion scrap steel of blockking of scrap steel, the setting up of wind channel 19 makes hot-blast can be more quick, even heating scrap steel.
As shown in fig. 2, one side of baking oven 7 sets up the cold charge that adds the cold charge of steel scrap to baking oven 7 upper end feed inlet and adds the device, and the cold charge adds the device and includes cold storage bin 17 and sets up the cold charge lifting machine in cold storage bin 17 below, and the cold charge lifting machine sets up to hopper formula lifting machine and cold charge lifting machine and can carry the steel scrap cold charge to baking oven 7 from cold storage bin 17, set up cold charge vibrating feeder 18 on the discharge gate of cold storage bin 17 lower extreme, cold charge vibrating feeder 18 can be at the uniform velocity carry the steel scrap cold charge to cold charge hopper 13.
The cold burden lifting machine includes the cold burden hopper 13 that reciprocates along cold burden track 14, cold burden track 14 includes parallel arrangement and upper end to the inner slide and the outer slide of baking stove 7 upper end opening direction slope, be close to the arc slide of baking stove 7's inner slide upper end for to baking stove 7 direction bending, inner slide and outer slide set up two sets ofly along cold burden hopper 13 central line symmetry, cold burden hopper 13 connects gradually cold burden hoist head 15 and cold burden hoist 16 through wire rope, cold burden hoist head 15 sets up to two through support articulated and cold burden hoist head 15, cold burden hoist 16 can drive cold burden hopper 13 and reciprocate along cold burden track 14, carry the useless steel cold burden that arrives in the cold burden hopper 13 to bake stove 7 then.
Set up the hot material interpolation device to ladle 2 interpolation steel scrap hot material between roast stove 7 and the metal mixer track, be provided with hot material vibrating feeder 8 on the discharge gate of roast stove 7 lower extreme, hot material interpolation device is used for carrying the hot material of steel scrap to ladle 2's hot material lifting machine from roast stove 7 including setting up in hot material vibrating feeder 8 below, hot material vibrating feeder 8 can be even, regularly will roast the qualified steel scrap hot material of 7 lower parts temperatures in stove and carry away, the steel scrap that the upper portion preheats falls through the dead weight and toasts 7 lower parts in stove and continuously heats. The hot material lifting machine comprises a hot material hopper 3 moving up and down along a hot material rail 4, the hot material rail 4 comprises an inner slide and an outer slide which are arranged in parallel, the upper ends of the inner slide and the outer slide are inclined towards the opening direction of the upper end of the ladle 2, the upper end of the inner slide close to the ladle 2 is an arc-shaped slide bending towards the ladle 2, the inner slide and the outer slide are symmetrically arranged along the center line of the hot material hopper 3, the hot material hopper 3 bypasses a hot material hoisting head sheave 5 through a steel wire rope to be connected with a hot material hoisting machine 6, the hot material hopper 3 is driven by the hot material hoisting machine 6 to move up and down, the hot material hoisting head sheave 5 is hinged through a support, and the hot material hoisting head sheave. The hot scrap iron output from the hot material vibrating feeder 8 is directly conveyed to the ladle 2 along the hot material lifter through the hot material hopper 3.
The using method comprises the following steps:
adding the cold steel into a cold material bin 17 by a forklift, starting a cold material vibrating feeder 18 to feed into a cold material hopper 13, starting a cold material hoister and a cold material winch 16, driving the cold material hopper 13 to move upwards along a cold material rail by the cold material winch 16 through a steel wire rope to the top end, and adding the cold steel into the baking furnace 7. And the hot blast stove 10 and the induced draft fan 12 are started, the hot blast stove 10 heats air pressure air through coke oven gas, and the induced draft fan 12 outwards exhausts air from the upper part of the baking furnace 7 to form air pressure difference, so that hot air is introduced into the baking furnace 7 through the hot air pipeline 11 to heat cold scrap. When the ladle car drives the ladle to the baking furnace 7, the hot material vibrating feeder 8 is started to add hot scrap materials into the hot material hopper 3, and meanwhile, the hot material winch 6 and the hot material hoister are started, and the hot material winch 6 drives the hot material hopper 3 to move upwards along the hot material rail through the steel wire rope to the top end to add hot scrap materials into the ladle 2. And simultaneously, the forklift continuously feeds materials into the cold material bin, and the process is repeated.
Claims (10)
1. The utility model provides a ladle adds steel scrap device, includes ladle (2) along the removal of mixer furnace tapping track and sets up in roaster (7) of mixer furnace track one side heating steel scrap, its characterized in that: one side of roaster (7) sets up cold charge that adds the cold charge of steel scrap to roaster (7) upper end feed inlet and adds the device and sets up the hot charge that adds the hot charge of steel scrap to ladle (2) between roaster (7) and the hot metal mixer track and add the device, set up hot-blast import (9) on the lateral wall of roaster (7) and roast stove (7) inside bottom and be provided with wind channel (19) that link to each other with hot-blast import (9), the densely covered air outlet on the wind channel wall in wind channel, the fixed hot-blast furnace (10) that sets up in roaster (7) one side, the top that is provided with hot-blast main (11) and hot-blast main (11) between hot-blast furnace (10) and roaster (7) is provided with draught fan (12) from roaster (7) air exhaust.
2. The ladle scrap adding device according to claim 1, wherein: the cold charge adds the device and includes cold feed bin (17) and sets up in cold feed bin (17) below and be used for carrying the cold charge lifting machine of baking out stove (7) with the steel scrap cold charge from cold feed bin (17), set up cold charge vibrating feeder (18) on cold feed bin (17) lower extreme discharge gate, the cold charge lifting machine sets up to hopper formula lifting machine.
3. The ladle scrap adding device according to claim 2, wherein: the cold burden lifting machine includes cold burden hopper (13) that reciprocates along cold burden track (14), cold burden track (14) are including parallel arrangement and upper end to interior slide and the outer slide of baking oven (7) upper end opening direction slope, are close to the arc slide of baking oven (7) upper end for baking oven (7) direction bending, and cold burden hopper (13) are walked around behind cold burden hoist head sheave (15) through wire rope and are connected with cold burden hoist engine (16), and cold burden hopper (13) reciprocate under the drive of cold burden hoist engine (16).
4. The ladle scrap adding device according to claim 3, wherein: the cold burden hoist head sheave (15) is hinged through a support, and the number of the cold burden hoist head sheave (15) is two.
5. The ladle scrap adding device according to claim 1, wherein: the lower end discharge port of the baking oven (7) is provided with a hot material vibrating feeder (8), and the hot material adding device comprises a hot material elevator which is arranged below the hot material vibrating feeder (8) and used for conveying the hot scrap material from the baking oven (7) to the ladle (2).
6. The ladle scrap adding device according to claim 5, wherein: the hot material lifting machine comprises a hot material hopper (3) moving up and down along a hot material rail (4), the hot material rail (4) comprises an inner slide and an outer slide which are arranged in parallel, the upper end of the inner slide inclines towards the opening direction of the upper end of the ladle (2), the upper end of the inner slide close to the ladle (2) is an arc-shaped slide bending towards the ladle (2), the hot material hopper (3) is connected with a hot material winch (6) after bypassing the hot material winch head sheave (5) through a steel wire rope, and the hot material hopper (3) moves up and down under the driving of the hot material winch (6).
7. The ladle scrap adding device according to claim 6, wherein: the hot material hoisting head sheave (5) is hinged through a support, and the number of the hot material hoisting head sheave (5) is two.
8. The ladle scrap adding device according to claim 1, wherein: the ladle (2) is fixedly arranged on the ladle car (1) and the ladle car (1) drives the ladle (2) to move back and forth along the tapping track of the mixer.
9. The ladle scrap adding device according to claim 1, wherein: the air flue (19) comprises an annular main air flue and a branch air flue, wherein the annular main air flue is communicated with the side wall of the baking oven (7) in a surrounding mode, the branch air flue is communicated with two opposite sides of the main air flue, and the two branch air flues are uniformly distributed in the main air flue.
10. The ladle scrap adding device according to claim 1, wherein: the hot air pipeline (11) is respectively connected with a hot air inlet (9) of the hot air furnace (10) and the baking furnace (7) through flanges.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920760879.8U CN210367767U (en) | 2019-05-24 | 2019-05-24 | Device for adding scrap steel into ladle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920760879.8U CN210367767U (en) | 2019-05-24 | 2019-05-24 | Device for adding scrap steel into ladle |
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| Publication Number | Publication Date |
|---|---|
| CN210367767U true CN210367767U (en) | 2020-04-21 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920760879.8U Active CN210367767U (en) | 2019-05-24 | 2019-05-24 | Device for adding scrap steel into ladle |
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| CN (1) | CN210367767U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113913581A (en) * | 2021-09-02 | 2022-01-11 | 山东莱钢永锋钢铁有限公司 | Method for improving utilization rate of converter smelting scrap steel |
-
2019
- 2019-05-24 CN CN201920760879.8U patent/CN210367767U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113913581A (en) * | 2021-09-02 | 2022-01-11 | 山东莱钢永锋钢铁有限公司 | Method for improving utilization rate of converter smelting scrap steel |
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