Apparatus for arranging raw fuel in blast furnace

Abstract

The utility model relates to industrial manufacturing technical field discloses blast furnace inner raw fuel arrangement equipment, including base, the top fixedly connected with blast furnace of base, the outside fixedly connected with two L type support columns of blast furnace, the outside fixedly connected with two locating blocks of L type support column's left and right sides, the inside rotatory connection has bearing of each locating block, the outside of bearing is equipped with power assembly, power assembly includes connecting block a, the bottom fixedly connected with electric telescopic machine of connecting block a, the output fixedly connected with connecting block b of electric telescopic machine, the outside both sides rotatory connection has two connecting column a of connecting block b. In the utility model, when the raw fuel in the blanking cylinder reaches a certain amount, the output end of the electric telescopic machine starts to shrink, the connecting block a also rotates with the movement of the electric telescopic machine, the connecting column a rotates with the movement of the connecting block b, which makes the bottom plate start to rotate, thereby realizing quantitative feeding, reducing the overwaste of raw fuel and uneven feeding effect caused by continuous feeding, and improving the utilization rate and efficiency of the equipment.

Description

Technical Field

[0001] This utility model relates to the field of industrial manufacturing technology, and in particular to equipment for arranging raw materials and fuels inside a blast furnace. Background Technology

[0002] Against the backdrop of the development of the steel industry, the arrangement and transportation of raw materials and fuels in the blast furnace is a crucial link in the blast furnace ironmaking process. Its core objective is to deliver raw materials and fuels into the blast furnace throat in a specific proportion and stably to ensure the efficient reaction within the blast furnace.

[0003] The raw material and fuel arrangement equipment inside the blast furnace mainly consists of components such as conveyor belts and charging cylinders. The conveyor belt, as the core conveying component, is driven by a motor-driven drum to continuously transport raw materials and fuels such as iron ore, coke, and limestone stored in the silo to the upper area of ​​the blast furnace at a set rate. During the conveying process, the conveyor belt adapts to the smelting rhythm of the blast furnace through a speed regulating device to ensure a stable supply of raw materials and fuels. Subsequently, the charging cylinder receives the material conveyed by the conveyor belt. Its inclined hopper design uses gravity to guide the material to fall and quantitatively feeds the material into the blast furnace.

[0004] In the existing technology, the difficulty in quantitatively feeding raw materials and fuels in some blast furnace arrangement devices has led to excessive waste and uneven feeding of raw materials and fuels, which has affected the working efficiency of the blast furnace. Therefore, a raw material and fuel arrangement device for blast furnaces is proposed to solve the above problems. Utility Model Content

[0005] To overcome the above deficiencies, this utility model provides a raw material and fuel arrangement device in a blast furnace, which aims to improve the problem that some existing raw material and fuel arrangement devices in blast furnaces cannot uniformly and quantitatively feed materials.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] A raw material and fuel arrangement device inside a blast furnace includes a base, a blast furnace fixedly connected to the top of the base, two L-shaped support columns fixedly connected to the outside of the blast furnace, a charging cylinder fixedly connected to the adjacent side of the two L-shaped support columns, a charging hopper fixedly connected to the top of the charging cylinder, two positioning blocks fixedly connected to the left and right sides of the outside of the L-shaped support columns, a bearing rotatably connected inside each positioning block, a power assembly provided outside the bearing, the power assembly including a connecting block a, an electric telescopic mechanism fixedly connected to the bottom of the connecting block a, a connecting block b fixedly connected to the output end of the electric telescopic mechanism, two connecting columns a rotatably connected to the outer sides of the connecting block b, two base plates fixedly connected to the bottom of multiple connecting columns a, multiple connecting columns b fixedly connected to the outer, distant side of the two base plates, wherein a limit block rotatably connects inside every two connecting columns b;

[0008] As a further description of the above technical solution:

[0009] A gas guide pipe a is fixedly connected to the outer left side of the blast furnace. A valve seat is fixedly connected to the top of the gas guide pipe a. A valve cover is fixedly connected to the top of the valve seat. An exhaust pipe is fixedly connected to the inner side of the middle of the valve seat. A gas guide pipe b is fixedly connected to the inner bottom side of the valve seat. The bottom of the gas guide pipe b is fixedly connected to the inside of the gas guide pipe a. An elastic component is provided inside the valve cover. A valve stem is threadedly connected to the inner top side of the valve cover. A valve cap is threadedly connected to the outer side of the valve stem.

[0010] As a further description of the above technical solution:

[0011] The top of the base is fixedly connected to two short support columns, one of which has a drive assembly on its outer side. The top of the base is fixedly connected to two long support columns, and two barrier plates are fixedly connected to the adjacent sides of the two long support columns. A conveyor belt is rotatably connected to the adjacent sides of the two barrier plates.

[0012] As a further description of the above technical solution:

[0013] The internal part of the connecting block a is fixedly connected to the external part of the bearing;

[0014] As a further description of the above technical solution:

[0015] The elastic component includes a pressure plate, the top of which is fixedly connected to the bottom of the valve stem, a spring is fixedly connected to the bottom of the pressure plate, and a guide sleeve is fixedly connected to the bottom of the spring.

[0016] As a further description of the above technical solution:

[0017] The drive assembly includes a support plate, the right side of which is fixedly connected to the outside of one of the barrier plates, and a motor is fixedly connected to the top of the support plate, the output end of which is rotatably connected to the inside of one of the barrier plates.

[0018] As a further description of the above technical solution:

[0019] The bottom of the guide sleeve is slidably connected to the top of the air duct b, and the outside of the spring is slidably connected to the inside of the valve cover.

[0020] As a further description of the above technical solution:

[0021] The bottom of the limiting block is fixedly connected to the outer side of the bottom of the feeding cylinder, and the top of the base plate is slidably connected to the top of the feeding cylinder.

[0022] This utility model has the following beneficial effects:

[0023] 1. In this utility model, the raw materials are temporarily stored in the feeding cylinder. When the raw materials in the feeding cylinder reach a certain amount, the output end of the electric telescopic machine begins to retract, and the connecting block a rotates with the movement of the electric telescopic machine. The connecting column a rotates with the movement of the connecting block b, which causes the bottom plate to rotate, thereby realizing quantitative feeding. This reduces the excessive waste of raw materials and uneven feeding caused by continuous feeding, and improves the utilization rate and efficiency of the equipment.

[0024] 2. In this utility model, to prevent excessive gas pressure inside the blast furnace during operation, a safety valve is installed on the blast furnace. The valve stem rotates on the valve cover, generating pressure through the pressure plate and the spring, which is then fixed by the valve cap. When the gas pressure inside the furnace exceeds the pressure set by the safety valve, the gas applies pressure to the guide sleeve, compressing the spring and lifting the guide sleeve. The gas is then discharged from the gas pipe until the gas pressure is lower than the safe value. This effectively protects the raw materials inside the blast furnace and solves the problem of reduced product quality caused by high pressure inside the furnace during operation. Attached Figure Description

[0025] Figure 1 This is a three-dimensional schematic diagram of the raw material and fuel arrangement equipment inside the blast furnace proposed in this utility model.

[0026] Figure 2 This is a schematic diagram of the base of the raw material and fuel arrangement equipment in the blast furnace proposed in this utility model;

[0027] Figure 3 for Figure 2 Enlarged view of point A in the middle;

[0028] Figure 4 This is a schematic diagram of the valve seat structure of the raw material and fuel arrangement equipment in the blast furnace proposed in this utility model;

[0029] Figure 5 for Figure 4 Enlarged view of point B in the middle.

[0030] Legend:

[0031] 1. Base; 2. Short support column; 3. Long support column; 4. Barrier plate; 5. Conveyor belt; 6. Motor; 7. Support plate; 8. Feed hopper; 9. L-shaped support column; 10. Blast furnace; 11. Feed cylinder; 12. Positioning block; 13. Bearing; 14. Connecting block a; 15. Electric telescopic mechanism; 16. Connecting block b; 17. Connecting column a; 18. Limiting block; 19. Connecting column b; 20. Base plate; 21. Air guide pipe a; 22. Valve seat; 23. Air guide pipe b; 24. Guide sleeve; 25. Exhaust pipe; 26. Spring; 27. Valve cover; 28. Pressure plate; 29. ​​Valve cap; 30. Valve stem. Detailed Implementation

[0032] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0033] Reference Figures 1 to 3 This utility model provides an embodiment of a raw material and fuel arrangement device in a blast furnace, including a base 1, which serves as the basic load-bearing component of the device. Two short support columns 2 are fixedly connected to the top of the base 1, acting as support members. A drive assembly is provided on the outer side of one of the short support columns 2. The drive assembly includes a support plate 7, which supports a motor 6. The right side of the support plate 7 is fixedly connected to the outside of one of the barrier plates 4, which prevents raw materials and fuel from falling from both sides. The top of the support plate 7 is fixedly connected to the motor 6, which is the power source for driving the conveyor belt 5. The output end of the motor 6 is rotatably connected to the inside of one of the barrier plates 4. Two long support columns 3 are fixedly connected to the top of the base 1, and two barrier plates 4 are fixedly connected to adjacent sides of the two long support columns 3, supporting some components. Two baffle plates 4 are rotatably connected to a conveyor belt 5 on their adjacent sides. The conveyor belt 5 transports raw materials and fuels. A blast furnace 10 is fixedly connected to the top of the base 1. The blast furnace 10 processes raw materials and fuels. Two L-shaped support columns 9 are fixedly connected to the outside of the blast furnace 10. The L-shaped support columns 9 support the feeding cylinder 11. The feeding cylinder 11 is fixedly connected to the adjacent sides of the two L-shaped support columns 9. A feeding hopper 8 is fixedly connected to the top of the feeding cylinder 11. The feeding hopper 8 guides the material to fall into the feeding cylinder 11 through its inclined inner wall. Two positioning blocks 12 are fixedly connected to the left and right sides of the L-shaped support columns 9. The positioning blocks 12 are used for positioning during component installation. A bearing 13 is rotatably connected inside each positioning block 12. The bearing 13 reduces the friction when the component rotates, reduces wear, and ensures flexible rotation. A power component is provided on the outside of the bearing 13.

[0034] The power assembly includes a connecting block a14, which is a connecting component. The interior of the connecting block a14 is fixedly connected to the exterior of the bearing 13. An electric telescopic mechanism 15 is fixedly connected to the bottom of the connecting block a14. The electric telescopic mechanism 15 is the power source for driving the components. A connecting block b16 is fixedly connected to the output end of the electric telescopic mechanism 15. The connecting block b16 is a connecting component. Two connecting columns a17 are rotatably connected to the outer sides of the connecting block b16. The connecting columns a17 are cylindrical connecting components. Two base plates 20 are fixedly connected to the bottom of the multiple connecting columns a17. The base plates 20 serve as the bearing plates at the bottom of the equipment. Multiple connecting columns b19 are fixedly connected to the outer side of the two base plates 20. The connecting columns b19 are cylindrical connecting components. A limit block 18 is rotatably connected inside every two connecting columns b19. The limit block 18 prevents damage to the components during movement. The bottom of the limit block 18 is fixedly connected to the outer bottom of the feed cylinder 11. The top of the base plate 20 is slidably connected to the top of the feed cylinder 11.

[0035] Reference Figure 4 and Figure 5 A gas guide pipe a21 is fixedly connected to the outer left side of the blast furnace 10. The gas guide pipe a21 serves as a gas guiding component. A valve seat 22 is fixedly connected to the top of the gas guide pipe a21. The valve seat 22 and the valve cover 27 cooperate to form a sealing structure. The valve cover 27 is fixedly connected to the top of the valve seat 22. An exhaust pipe 25 is fixedly connected to the inner side of the middle part of the valve seat 22. The exhaust pipe 25 discharges gas from the equipment. A gas guide pipe b23 is fixedly connected to the bottom side of the inner part of the valve seat 22. The gas guide pipe b23 serves as a gas guiding component. The bottom of the gas guide pipe b23 is fixedly connected to the inside of the gas guide pipe a21. A spring component is provided inside the valve cover 27.

[0036] The valve cover 27 and valve seat 22 cooperate to form the sealing cavity of the valve. The elastic component includes a pressure plate 28, which achieves sealing through compression. The top of the pressure plate 28 is fixedly connected to the bottom of the valve stem 30. The valve stem 30 is a rod for adjusting pressure. The bottom of the pressure plate 28 is fixedly connected to a spring 26, which is a component that provides pressure. The bottom of the spring 26 is fixedly connected to a guide sleeve 24. The valve stem 30 is threadedly connected to the top of the valve cover 27. The valve cap 29 is threadedly connected to the outside of the valve stem 30. The valve cap 29 is used to protect the valve stem 30, spring 26 and other internal components. The guide sleeve 24 is connected to the spring 26. The bottom of the guide sleeve 24 is slidably connected to the top of the air duct b23. The outside of the spring 26 is slidably connected to the inside of the valve cover 27.

[0037] Working principle: First, the motor 6 on the support plate 7 is started to drive the conveyor belt 5. The raw materials are placed on the conveyor belt 5. During transportation, the raw materials on the conveyor belt 5 are blocked by the side baffles 4. The raw materials fall into the feeding hopper 8 through the conveyor belt 5, and then into the feeding cylinder 11 supported by the L-shaped support column 9. When the raw materials in the feeding cylinder 11 reach a certain amount, the power components on the bearings 13 in the two positioning blocks 12 start to work. The output end of the electric telescopic machine 15 begins to retract. The connecting block a14 also rotates with the movement of the electric telescopic machine 15. The connecting column a17 rotates with the movement of the connecting block b16, which causes the bottom plate 20 to start to rotate. Because the bottom plate 20 is restricted by the connecting column b19, the two bottom plates 20 can only rotate downwards symmetrically, thereby realizing quantitative feeding, reducing the excessive waste of raw materials and uneven feeding caused by continuous feeding, and improving the utilization rate and efficiency of the equipment.

[0038] To prevent excessively high gas pressure inside the blast furnace 10 during operation, a safety valve is installed on the blast furnace 10. The valve stem 30 rotates on the valve cover 27, which generates pressure by pressing down the spring 26 through the pressure plate 28, and is then fixed by the valve cap 29. When the gas pressure inside the furnace is higher than the pressure set by the safety valve, the gas enters the gas guide pipe b24 through the gas guide pipe a21, and the gas pressure applies pressure to the guide sleeve, compressing the spring 26 and lifting the guide sleeve 24. The gas is discharged from the gas guide pipe 23 and flows out from the valve seat 22 through the exhaust pipe 25 until the gas pressure is lower than the safe value. This effectively protects the raw materials inside the blast furnace 10 and solves the problem of reduced product quality caused by high pressure inside the furnace during operation of the blast furnace 10. Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. Equipment for arranging raw fuel in a blast furnace, comprising a base (1), characterised in that: A blast furnace (10) is fixedly connected to the top of the base (1). Two L-shaped support columns (9) are fixedly connected to the outside of the blast furnace (10). A feeding cylinder (11) is fixedly connected to the adjacent side of the two L-shaped support columns (9). A feeding hopper (8) is fixedly connected to the top of the feeding cylinder (11). Two positioning blocks (12) are fixedly connected to the left and right sides of the outside of the L-shaped support columns (9). A bearing (13) is rotatably connected inside each positioning block (12). A power assembly is provided outside the bearing (13). The power assembly includes... Connecting block a (14), the bottom of the connecting block a (14) is fixedly connected to an electric telescopic machine (15), the output end of the electric telescopic machine (15) is fixedly connected to a connecting block b (16), the outer sides of the connecting block b (16) are rotatably connected to two connecting columns a (17), the bottom of the multiple connecting columns a (17) is fixedly connected to two base plates (20), the outer sides of the two base plates (20) are fixedly connected to multiple connecting columns b (19), wherein the interior of each pair of connecting columns b (19) is rotatably connected to a limit block (18).

2. A plant according to claim 1, characterized in that: A gas guide pipe a (21) is fixedly connected to the outer left side of the blast furnace (10). A valve seat (22) is fixedly connected to the top of the gas guide pipe a (21). A valve cover (27) is fixedly connected to the top of the valve seat (22). An exhaust pipe (25) is fixedly connected to the inner side of the middle part of the valve seat (22). A gas guide pipe b (23) is fixedly connected to the bottom side of the inner part of the valve seat (22). The bottom of the gas guide pipe b (23) is fixedly connected to the inside of the gas guide pipe a (21). An elastic component is provided inside the valve cover (27). A valve stem (30) is threadedly connected to the top side of the inner part of the valve cover (27). A valve cap (29) is threadedly connected to the outer side of the valve stem (30).

3. A device for arranging raw fuel in a blast furnace according to claim 1, characterized in that: The base (1) has two short support columns (2) fixedly connected to its top. One of the short support columns (2) has a drive assembly on its outer side. The base (1) has two long support columns (3) fixedly connected to its top. Two barrier plates (4) are fixedly connected to the adjacent side of the two long support columns (3). A conveyor belt (5) is rotatably connected to the adjacent side of the two barrier plates (4).

4. A device for arranging primary fuel within a blast furnace according to claim 1, characterized in that: The internal connection of the connecting block a (14) is fixedly connected to the external connection of the bearing (13).

5. A device for arranging primary fuel within a blast furnace according to claim 2, characterized in that: The elastic component includes a pressure plate (28), the top of which is fixedly connected to the bottom of the valve stem (30), and a spring (26) is fixedly connected to the bottom of the pressure plate (28), and a guide sleeve (24) is fixedly connected to the bottom of the spring (26).

6. A device for arranging primary fuel within a blast furnace according to claim 3, characterized in that: The drive assembly includes a support plate (7), the right side of which is fixedly connected to the outside of one of the barrier plates (4), and a motor (6) is fixedly connected to the top of the support plate (7). The output end of the motor (6) is rotatably connected to the inside of one of the barrier plates (4).

7. A device for arranging primary fuel in a blast furnace according to claim 5, characterized in that: The bottom of the guide sleeve (24) is slidably connected to the top of the air pipe b (23), and the outside of the spring (26) is slidably connected to the inside of the valve cover (27).

8. A device for arrangement of raw fuel within a blast furnace according to claim 1, characterized in that: The bottom of the limiting block (18) is fixedly connected to the bottom outside of the feed cylinder (11), and the top of the base plate (20) is slidably connected to the top of the feed cylinder (11).

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