CN210711618U - System for adding scrap steel to molten iron bearing equipment by adopting belt conveyor - Google Patents
System for adding scrap steel to molten iron bearing equipment by adopting belt conveyor Download PDFInfo
- Publication number
- CN210711618U CN210711618U CN201921545137.XU CN201921545137U CN210711618U CN 210711618 U CN210711618 U CN 210711618U CN 201921545137 U CN201921545137 U CN 201921545137U CN 210711618 U CN210711618 U CN 210711618U
- Authority
- CN
- China
- Prior art keywords
- belt conveyor
- molten iron
- steel
- hot metal
- underground
- 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.)
- Expired - Fee Related
Links
Images
Landscapes
- Refinement Of Pig-Iron, Manufacture Of Cast Iron, And Steel Manufacture Other Than In Revolving Furnaces (AREA)
Abstract
The utility model discloses an adopt belt conveyor to bear system of equipment adding steel scrap to molten iron. The method comprises the following steps: an underground station; an underground bin with a weighing function is arranged on the underground station; a discharge port at the bottom of the underground storage bin is provided with a gate valve; a vibration feeder is arranged at the lower outlet of the gate valve: the ground station is provided with a discharging hopper which is hung on the platform or supported on the terrace; a molten iron bearing device is arranged below a feed opening of the feeding hopper; a belt conveyor is arranged between the vibration feeder and the discharging hopper. The utility model has the advantages of convenient to use, easy operation have simultaneously: the waste steel ratio of converter smelting is improved; the waste heat of the hot metal tank is recovered, and the energy consumption is reduced; the temperature drop of the hot metal ladle is reduced, the rapid cooling and rapid heating are avoided, and the service life of refractory materials of the hot metal ladle is prolonged; the scrap steel is added into the molten iron tank, so that the smelting period of the converter is not occupied.
Description
Technical Field
The technology belongs to the technical field of metallurgy.
Background
The scrap steel is used as a recycling resource, and the recycling of the scrap steel has higher environmental protection, economic and social benefits. In iron and steel enterprises, the comprehensive energy consumption of iron making and pre-iron working procedures accounts for more than 60% of the energy consumption of iron and steel production, the steel scrap consumption of steel making is increased, and the comprehensive energy consumption in the iron and steel production process can be greatly reduced. Statistical data show that the consumption of 1.7t concentrate powder, 1.6t carbon emission, 1t raw coal consumption and 2.6t steel tailing slag emission can be reduced every 1t steel scrap is added.
Thirteen-five planning in China is proposed, and the steel-making scrap steel ratio is improved to 20% in 2020; the industry and belief section 2015-12 proposes a policy adjustment plan for the steel industry, and the application proportion of the scrap steel is increased to 30% by 2025. For steel plants, the converter scrap ratio is improved, the production efficiency of the converter can be improved, the production cost of raw materials is reduced, and the economic benefit of a company is increased. Therefore, it is a trend of the future steel industry to improve the scrap ratio from the national policy of administration or the self-operating benefit of the enterprise.
According to the statistical prediction of the steel scrap association, the total yield of the steel scrap resources in the country in 2018 reaches 2.2 hundred million tons, and the quantity is increased by 2000 ten thousand tons on the same scale. With the increase of the steel accumulation in our country, good conditions are provided for improving the application of scrap steel in steel plants.
The steel plant waste steel is mainly concentrated on a converter, and the physical heat and the chemical heat of molten iron are utilized to heat and melt the waste steel. However, the following problems exist:
(1) the scrap steel ratio is too high, the charging time is increased, and the smelting period is prolonged;
(2) the ratio of the scrap steel is too high, and the open blowing point of the converter is not on fire;
(3) the ratio of scrap steel is too high, the heat of the converter is not enough, and heating substances such as coke, ferrosilicon and the like need to be added to supplement heat for the molten pool, so that the oxygen consumption is increased;
(4) or a double-channel oxygen lance is needed to burn converter gas, so that the heat supplement is carried out on a molten pool, and the oxygen consumption is increased;
(5) or after-blowing, burning the metallic iron, and supplementing heat to the molten pool to increase the consumption of metallic materials.
SUMMERY OF THE UTILITY MODEL
In order to overcome the defects, the utility model aims to provide an adopt belt conveyor to bear equipment with steel scrap to the molten iron that improves the use amount of steel scrap and improves steel mill steel scrap ratio adds the steel scrap system.
In order to achieve the above object, the utility model discloses an adopt belt conveyor to bear the weight of the system that equipment adds steel scrap to the molten iron, include:
an underground station;
an underground bin with a weighing function is arranged on the underground station;
a discharge port at the bottom of the underground storage bin is provided with a gate valve;
a vibration feeder is arranged at the lower outlet of the gate valve;
an overground station;
a blanking hopper is arranged on the ground station and is hung on the platform or supported on the terrace;
a molten iron bearing device is arranged below a feed opening of the feeding hopper;
a belt conveyor is arranged between the vibration feeder and the discharging hopper.
Preferably, the belt conveyor is a belt conveyor or a chain plate conveyor.
Preferably, the molten iron bearing equipment is a molten iron tank or a ladle or a torpedo tank car.
Preferably, a grating plate is arranged at an opening at the upper part of the underground storage bin;
preferably, the underground storage bin is lined with a wear-resisting plate.
Adopt the utility model discloses a system, in unloading garrulous steel scrap to underground storage bin, but the computer shows steel scrap weight in real time. Therefore, the adding amount of the scrap steel can be determined according to the capacity of the molten iron bearing equipment, the temperature of the molten iron and the state of the molten iron tank. When scrap steel needs to be added into the molten iron tank, firstly, the molten iron bearing equipment is opened to the lower part of the blanking hopper and is centered; then opening the gate valve, opening the belt conveyor and the vibrating feeder in sequence, and starting uniform blanking. When the adding amount of the scrap steel displayed on the computer meets the requirement, closing the vibrating feeder, moving the next molten iron bearing equipment to the lower part of the blanking hopper after the scrap steel on the belt conveyor completely enters the molten iron bearing equipment, and starting to add the scrap steel; and stopping feeding after all the molten iron bearing equipment is filled with the scrap steel. The utility model has the advantages of convenient to use, easy operation still have simultaneously:
(1) the waste steel ratio of converter smelting is improved;
(2) the waste heat of the hot metal tank is recovered, and the energy consumption is reduced;
(3) the temperature drop of the hot metal ladle is reduced, the rapid cooling and rapid heating are avoided, and the service life of the refractory of the hot metal ladle is prolonged.
(4) The scrap steel is added into the molten iron tank, so that the smelting period of the converter is not occupied.
Drawings
Fig. 1 is a schematic structural diagram of the present invention.
Fig. 2 is a schematic top view of fig. 1.
In the drawings: (1) a transport vehicle; (2) an underground storage bin; (3) a gate valve; (4) a vibratory feeder; (5) a belt conveyor; (6) feeding a hopper; (7) molten iron bearing equipment.
Detailed Description
The utility model discloses an adopt belt conveyor to bear the system that equipment adds steel scrap to molten iron, include:
an underground station;
an underground bin 2 with a weighing function is arranged on the underground station;
a discharge port at the bottom of the underground storage bin is provided with a gate valve 3;
a vibration feeder 4 is arranged at the lower outlet of the gate valve;
an overground station;
a blanking hopper 6 is arranged on the ground station and is hung on the platform or supported on the terrace;
a molten iron bearing device 7 is arranged below a feed opening of the feeding hopper;
a belt conveyor 5 is arranged between the vibration feeder and the discharging hopper.
The working process is as follows:
1) the transport vehicle (1) transports the scrap steel to the underground storage bin (2) and discharges the scrap steel into the underground storage bin, and a weighing device of the underground storage bin records the weight of the scrap steel in the storage bin; manually cleaning large scrap steel at the upper part of the grating plate;
2) when scrap steel needs to be added into the molten iron bearing equipment (7), firstly aligning the upper opening of the molten iron bearing equipment (7) with the blanking hopper (6), and then starting the belt conveyor (5);
3) opening a vibration feeder (4) of the underground storage bin (2), and loading the scrap steel into molten iron bearing equipment (7) through a belt conveyor (5) and a blanking hopper (6);
4) when the weight of the scrap steel in the molten iron bearing equipment (7) meets the requirement, the vibration feeder (4) is closed, and the belt conveyor (5) is stopped when all the scrap steel on the belt conveyor falls into the molten iron bearing equipment (7);
5) moving the next molten iron bearing device (7) to the position below the discharging hopper (6) and beginning to add scrap steel;
6) repeating the step 2 to the step 5, and stopping feeding after all the molten iron bearing equipment (7) is filled with the scrap steel;
7) and the molten iron bearing equipment is conveyed to a baking position for baking, or conveyed to an iron-making plant for receiving molten iron.
Examples
Take a 100t hot metal ladle as an example.
1) The dump truck (1) unloads the scrap steel into the underground bin (2);
2) after the hot metal tank is added with the hot metal to the converter, the hot metal tank is moved to the position below the feeding hopper (6);
3) starting the belt conveyor (5);
4) starting a vibration feeder (4), and loading the scrap steel into a hot metal ladle (7) through a belt conveyor (5) and a blanking hopper (6);
5) and when the weight of the scrap steel in the hot metal ladle (7) reaches-5 t, closing the vibration feeder (4), and stopping the belt conveyor (5) after all the scrap steel on the belt falls into the hot metal ladle (7).
6) Moving the mouth of the next hot metal ladle (7) to align with the blanking hopper (6);
7) and (5) repeating the steps 2 to 5, and after all the hot-metal ladles (7) are filled with the scrap steel, transporting the hot-metal ladles (7) to an iron-making plant to receive the blast furnace molten iron.
Claims (5)
1. The utility model provides an adopt belt conveyor to molten iron bearing equipment add system of steel scrap which characterized in that includes:
an underground station;
an underground bin with a weighing function is arranged on the underground station;
a discharge port at the bottom of the underground storage bin is provided with a gate valve;
a vibration feeder is arranged at the lower outlet of the gate valve;
an overground station;
a blanking hopper is arranged on the ground station and is hung on the platform or supported on the terrace;
a molten iron bearing device is arranged below a feed opening of the feeding hopper;
a belt conveyor is arranged between the vibration feeder and the discharging hopper.
2. The system for adding scrap steel to a hot metal receiving apparatus using a belt conveyor according to claim 1, wherein the belt conveyor is a belt conveyor or a link plate conveyor.
3. The system for adding scrap steel to a hot metal ladle using a belt conveyor according to claim 1, wherein the hot metal ladle is a hot metal ladle or a torpedo car.
4. The system for feeding scrap to a molten iron carrying facility using a belt conveyor according to claim 1, wherein a grating plate is installed at an upper opening of the underground storage bin.
5. The system for adding scrap steel to a hot metal receiving facility using a belt conveyor according to claim 1 wherein said underground storage bin is lined with wear plates.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921545137.XU CN210711618U (en) | 2019-09-17 | 2019-09-17 | System for adding scrap steel to molten iron bearing equipment by adopting belt conveyor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921545137.XU CN210711618U (en) | 2019-09-17 | 2019-09-17 | System for adding scrap steel to molten iron bearing equipment by adopting belt conveyor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210711618U true CN210711618U (en) | 2020-06-09 |
Family
ID=70959760
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921545137.XU Expired - Fee Related CN210711618U (en) | 2019-09-17 | 2019-09-17 | System for adding scrap steel to molten iron bearing equipment by adopting belt conveyor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210711618U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114381570A (en) * | 2022-01-07 | 2022-04-22 | 北京首钢国际工程技术有限公司 | Online molten iron jar steel scrap joining device |
-
2019
- 2019-09-17 CN CN201921545137.XU patent/CN210711618U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114381570A (en) * | 2022-01-07 | 2022-04-22 | 北京首钢国际工程技术有限公司 | Online molten iron jar steel scrap joining device |
| CN114381570B (en) * | 2022-01-07 | 2024-04-02 | 北京首钢国际工程技术有限公司 | Online hot-metal bottle steel scrap adding device |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JPS61502899A (en) | Continuous steel making process and equipment | |
| RU2434948C2 (en) | Procedure and system for supply of hot iron of direct reduction for numerous consumers | |
| CN210711618U (en) | System for adding scrap steel to molten iron bearing equipment by adopting belt conveyor | |
| CN114381568A (en) | Method for improving converter tapping quantity | |
| CN211112072U (en) | Furnace charge tracking device in blast furnace ironmaking furnace | |
| CN112301188A (en) | Method for efficiently utilizing metallurgical solid waste | |
| Kal’ko et al. | Main directions in the development of the PJSC Severstal Steel Division considering prospects for carbon regulation | |
| CN105420431A (en) | Blast furnace protecting agent prepared from titanium-containing slag and furnace protecting method | |
| RU2533990C2 (en) | Method and device for loading to melting unit | |
| CN104593530A (en) | High-temperature tempering and curing method of liquid slag and equipment system of method | |
| CN210657001U (en) | System for efficiently adding steel scraps to converter by steel grabbing machine | |
| CN206521505U (en) | Pre-reduced pellet direct-furnish electric furnace hot charging system | |
| US7597741B2 (en) | Method of making steel | |
| CN115125348B (en) | Method and system for efficiently using metallized pellets of rotary hearth furnace | |
| US4236699A (en) | Apparatus for wet-post treatment of metallized iron ore | |
| RU2249055C1 (en) | Method for pyrometallurgy reprocessing of copper-containing materials | |
| CN219258962U (en) | Smelting metal adding device | |
| CN216947095U (en) | Molten iron pretreatment device outside melting reduction furnace | |
| CN215481017U (en) | Blast furnace-converter production system | |
| CN206562182U (en) | The device of returning charge granulated iron is collected in a kind of miberal powder production | |
| Kapelyushin | Comparative review on the technologies of briquetting, sintering, pelletizing and direct use of fines in processing of ore and technogenic materials | |
| WO2009095942A1 (en) | Iron metallurgical plant | |
| CN102827974A (en) | Blast furnace material-proportioning and material-loading method | |
| KR101848263B1 (en) | Method for Steelmaking Refining Process using Iron Cast Dust | |
| Moenster et al. | OPERATIONS AT THE DOE RUN COMPANY’S BUICK RESOURCE RECYCLING DIVISION |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20200609 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |