CN211079224U - Movable preheats device of steel scrap - Google Patents
Movable preheats device of steel scrap Download PDFInfo
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- CN211079224U CN211079224U CN201921756432.XU CN201921756432U CN211079224U CN 211079224 U CN211079224 U CN 211079224U CN 201921756432 U CN201921756432 U CN 201921756432U CN 211079224 U CN211079224 U CN 211079224U
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- slag
- steel
- preheating
- preheating chamber
- ladle
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Abstract
A movable device for preheating waste steel belongs to the technical field of metallurgical technology and the technical field of waste steel preheating, and comprises an inner rail, wherein a slag tank car is arranged on the inner rail, a slag tank is arranged on the slag tank car, an outer rail is arranged on the outer side of the inner rail in parallel, a movable frame is arranged on the outer rail, and a preheating chamber is arranged at the top of the movable frame; the slag tank car is positioned under the movable frame. The utility model discloses the preheating chamber is being carried to the utilization removal frame, places the steel scrap in the preheating chamber, when removing frame and slag ladle car and remove simultaneously, the steel scrap is preheated to make full use of slag ladle car transfer furnace slag heat, and usable sediment strides the overhead traveling crane and adds the preheating chamber with the steel scrap, and the steel scrap is packed into conveniently, and the steel scrap accessible tilting device after preheating need not to transport once more in directly adding the ladle.
Description
Technical Field
The utility model belongs to the technical field of the metallurgical technology and steel scrap preheat technical field, specifically a movable preheats device of steel scrap.
Background
The steel-making slag is a general term for products formed by oxidizing impurities in metal materials (molten iron, scrap steel and the like) in a steel-making process by an oxidizing agent to generate oxides, and then carrying out a physical and chemical reaction on the oxides, a slagging agent and a furnace lining. The slag is lower in density than the molten steel and generally covers the surface of the molten steel. In the smelting process, because of the generation of a large amount of gas, a molten pool is strongly stirred, molten slag and molten steel are always in a mutual mixing state, and the mixing degree is more developed, so that the molten steel is more quickly refined by the molten slag. Because of the continuous reaction between slag and steel, the components and properties of the slag are changed in the smelting process, and the properties of the slag are directly related to the final quality of molten steel, the main task of steel making is to remove the harmful impurities (sulfur, phosphorus, gas, inclusions, etc.) in the molten steel to the maximum extent, which mainly depends on the refining action of the slag, so the components and temperature of the slag are continuously controlled and adjusted in the smelting process.
The slag in the steel-making process has the following functions: (1) harmful impurity elements and non-metallic inclusions are removed, and the refining purpose is achieved; (2) a certain oxygen transmission speed from furnace gas to molten steel can be ensured in the oxidation period; (3) can prevent N in furnace gas and atmosphere2、O2And H2Transferring to molten steel; (4) during casting, the slag plays a role in heat insulation and preservation of the molten steel in the steel ladle, and prevents the molten steel from being cooled rapidly.
Strictly speaking, the melting point of any slag is not a single temperature value, but a temperature interval, so that the melting temperature of slag is more proper; the melting temperature of the slag is determined by its composition. The melting point of slags of known composition can be approximated from the corresponding phase diagram, the exact value of which is to be determined by special experimental methods. The melting point of the slag is usually lower than that of steel, so that the slag is ensured to be liquid at the steelmaking temperature and has good fluidity and reaction capability. The actual temperature of the furnace slag in the smelting furnace is 40-80 ℃ higher than that of the molten steel.
At present, with the rapid development of economy in China, the energy consumption is increased rapidly, and a large amount of fossil fuel is consumed, so that the serious global warming and acid rain problems are caused, and the sustainable development of human beings is seriously damaged. At present, steel-making furnaces in China are various in types, such as converters, electric furnaces and the like. The converter body is made of steel plate, is cylindrical, is lined with refractory material, is heated by chemical reaction heat during blowing, does not need an external heating source, and is the most important steelmaking equipment. In the steel industry of China, the converter type of the steel making furnace is most applied by a converter. The temperature of the converter slag is as high as 1200 ℃, if the part of heat energy can be effectively utilized, the total energy consumption of steel making can be greatly saved, and the energy-saving and emission-reducing work in the steel industry is practically promoted.
The Chinese patent (patent number: 201721889629.1) discloses a waste heat utilization device suitable for cooling converter slag, which comprises a grate cooler, four atomizing nozzles and a pressurizing device for driving the atomizing nozzles to spray, wherein the four atomizing nozzles are used for heat exchange, compared with cold air heat exchange, the heat exchange coefficient between the four atomizing nozzles and the slag can be greatly enhanced by the spray heat exchange, the heat exchange effect is greatly improved, in addition, the four atomizing nozzles are positioned on the same plane, the opposite atomizing nozzles are staggered, circular and rising air flow is effectively formed under the driving of the pressurizing device, the disturbance degree of the air flow is enhanced, the path and the residence time are prolonged, the heat exchange is promoted, the problem of lower waste heat utilization coefficient in the prior art is solved, the Chinese patent (patent number 107634. X) discloses a device for utilizing the waste steel and waste alloy of a converter slag, and a using device and two side walls thereof, the device mainly comprises a waste steel and alloy adding chamber, a waste slag storing chamber, a waste steel storing chamber, a waste alloy storing cover plate, a heat preserving cover plate, a heat preserving bottom plate, a heat, a steel and a steel alloy storing cover plate are arranged on the top of the waste steel adding chamber, a waste steel adding and a waste alloy storing chamber, a waste steel storing bottom plate, a waste steel storing device is arranged on the top of the waste steel adding and a waste steel storing chamber, a waste steel storing device, a waste alloy storing bottom plate, a waste steel storing and a waste alloy storing device are arranged on the waste steel storing bottom plate, a waste steel storing and a waste steel storing device, a waste steel storing bottom plate, a waste steel storing device for increasing and a waste steel storing device for increasing heat preserving heat of a waste steel.
SUMMERY OF THE UTILITY MODEL
The utility model provides a movable waste steel preheating device, which can fully utilize the heat of converter slag to preheat waste steel;
the utility model discloses a following technical scheme realizes:
a movable waste steel preheating device comprises an inner rail, wherein a slag tank car is arranged on the inner rail, a slag tank is arranged on the slag tank car, an outer rail is arranged on the outer side of the inner rail in parallel, a movable frame is arranged on the outer rail, and a preheating chamber is arranged at the top of the movable frame; the slag tank car is positioned under the movable frame.
The outer track and the inner track are arranged in parallel. The slag pot car can move along the inner rail under the preheating chamber.
The rear end of the preheating chamber is rotatably connected with the top of the movable frame, and a hydraulic cylinder is arranged below the front end of the preheating chamber and connected with the distribution box.
The inner rail is provided with a buggy ladle which is provided with a ladle, and the buggy ladle is arranged behind the slag ladle car.
The bottom plate of the preheating chamber is a grid plate.
The utility model has the advantages that: the utility model discloses the preheating chamber is being carried to the utilization removal frame, places the steel scrap in the preheating chamber, when removing frame and slag ladle car and remove simultaneously, the steel scrap is preheated to make full use of slag ladle car transfer furnace slag heat, and usable sediment strides the overhead traveling crane and adds the preheating chamber with the steel scrap, and the steel scrap is packed into conveniently, and the steel scrap accessible tilting device after preheating need not to transport once more in directly adding the ladle.
Description of the drawings: fig. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic view of the inner rail and the outer rail of the present invention;
FIG. 3 is a schematic structural view of the grid plate of the present invention;
in the figure: 1. the steel ladle preheating device comprises waste steel, 2 parts of a feeding port, 3 parts of a feeding baffle, 4 parts of a preheating chamber, 5 parts of a preheating chamber door plate, 6 parts of a rotary connector, 7 parts of a ladle, 8 parts of a ladle trunnion, 9 parts of a ladle car, 10 parts of a slag pot, 11 parts of a slag tanker, 12 parts of a hub, 13 parts of a hydraulic cylinder, 14 parts of an outer rail, 15 parts of a grid plate, 16 parts of a distribution box, 17 parts of a moving frame, 18 parts of an inner rail and 19 parts of heat transfer holes.
The specific implementation mode is as follows: referring to fig. 1 and 2, a device of movable preheating steel scrap, includes interior track 18, be equipped with slag ladle car 11 on the interior track 18, be equipped with slag ladle 10 on the slag ladle car 11, its characterized in that: an outer rail 14 is arranged outside the inner rail 18 in parallel, a moving frame 17 is arranged on the outer rail 14, and a preheating chamber 4 is arranged at the top of the moving frame 17; the slag tank car 11 is positioned under the movable frame 17; the slag pot car 11 can be moved along the inner track 18 below the preheating chamber 4.
The rear end of the preheating chamber 4 is rotatably connected with the top of the movable frame 17, a hydraulic cylinder 13 is arranged below the rear end of the preheating chamber 4, and the hydraulic cylinder 13 is connected with a distribution box 16, so that the scrap steel 1 in the preheating chamber 4 can be conveniently poured into a ladle on a ladle car.
The inner rail 18 is provided with a ladle car 9, the ladle car 9 is provided with a ladle 7, and the ladle car 9 is arranged behind the slag ladle car 11 and is convenient for receiving the waste steel 1 dumped from the preheating chamber 4.
The bottom plate of the preheating chamber 4 is a grid plate 15, and heat transfer holes 19 on the grid plate 15 can fully utilize the heat of molten slag in the slag pot 10.
The back of the preheating chamber 4 is provided with a discharge hole, a door plate at the discharge hole and the preheating chamber 4 pass through a movable connecting piece, and the movable connecting piece is one of a buckling piece or a rotating shaft.
The bottom of the movable frame 17 is provided with a hub 12, so that the movable frame can move conveniently.
The top of the preheating chamber 4 is provided with a feeding port 2, and a feeding baffle 3 is welded on a top plate on one side of the feeding port 2 to ensure that the scrap steel 1 is fed into the preheating chamber 4; a shaft-type rotary interface 6 is arranged between the rear end of the preheating chamber 4 and the top of the movable frame 17 and is connected with the preheating chamber through a rotary shaft, a door plate of the preheating chamber can be kept in a locking state when the preheating chamber 4 is lifted to 3 degrees, and the preheating chamber is ensured to be completely opened when the preheating chamber is lifted to 5 to 8 degrees, so that the preheating chamber 4 can pour scrap steel conveniently.
The outer wall of the ladle 7 is welded with a ladle trunnion, so that the ladle 7 can be conveniently moved.
The method comprises the steps of opening a scrap steel preheating device to a slag span area, adding scrap steel into a preheating chamber by using a slag span, after early deslagging or final deslagging of a converter, enabling a slag tank car 11 to run to the lower portion of a moving frame of the scrap steel preheating device, enabling a baffle plate at the lower portion of the preheating chamber to be a grid plate 15, enabling heat of converter slag to be transferred into the preheating chamber through a heat transfer hole 19, so that the scrap steel is preheated, enabling a ladle car to run to the rear portion of the moving frame after the scrap steel is preheated, jacking the preheating chamber to be at a 45-degree position by a hydraulic cylinder 13, automatically opening a door plate of the preheating chamber, and enabling the preheated scrap steel in the preheating chamber.
Claims (4)
1. The utility model provides a device of movable preheating scrap steel, includes interior track (18), be equipped with slag ladle car (11) on interior track (18), be equipped with slag ladle (10) on slag ladle car (11), its characterized in that: an outer rail (14) is arranged on the outer side of the inner rail (18) in parallel, a moving frame (17) is arranged on the outer rail (14), and a preheating chamber (4) is arranged at the top of the moving frame (17); the slag tank car (11) is positioned under the movable frame (17).
2. The movable apparatus for preheating scrap steel in accordance with claim 1, wherein: the rear end of the preheating chamber (4) is rotatably connected with the top of the movable frame (17), a hydraulic cylinder (13) is arranged below the front end of the preheating chamber (4), and the hydraulic cylinder (13) is connected with the distribution box (16).
3. The movable apparatus for preheating scrap steel in accordance with claim 1, wherein: the inner rail (18) is provided with a ladle car (9), the ladle car (9) is provided with a ladle (7), and the ladle car (9) is arranged behind the slag ladle car (11).
4. The movable apparatus for preheating scrap steel in accordance with claim 1, wherein: the bottom plate of the preheating chamber (4) is a grid plate (15).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921756432.XU CN211079224U (en) | 2019-10-18 | 2019-10-18 | Movable preheats device of steel scrap |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921756432.XU CN211079224U (en) | 2019-10-18 | 2019-10-18 | Movable preheats device of steel scrap |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211079224U true CN211079224U (en) | 2020-07-24 |
Family
ID=71630213
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921756432.XU Expired - Fee Related CN211079224U (en) | 2019-10-18 | 2019-10-18 | Movable preheats device of steel scrap |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211079224U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113720134A (en) * | 2021-09-23 | 2021-11-30 | 北京坦隆环境科技有限公司 | Material drying equipment and material drying method |
| CN114705042A (en) * | 2022-04-01 | 2022-07-05 | 南京贤云机电科技有限公司 | Automatic feeding and discharging method for baking scrap steel into furnace |
-
2019
- 2019-10-18 CN CN201921756432.XU patent/CN211079224U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113720134A (en) * | 2021-09-23 | 2021-11-30 | 北京坦隆环境科技有限公司 | Material drying equipment and material drying method |
| CN114705042A (en) * | 2022-04-01 | 2022-07-05 | 南京贤云机电科技有限公司 | Automatic feeding and discharging method for baking scrap steel into furnace |
| CN114705042B (en) * | 2022-04-01 | 2023-10-27 | 南京贤云机电科技有限公司 | Automatic feeding and discharging method for baking scrap steel into furnace |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20200724 Termination date: 20211018 |