Steel scrap baking equipment

Abstract

The utility model relates to the technical field of scrap steel preheating, and discloses scrap steel baking equipment. The waste steel baking equipment comprises a bottom plate, a limiting frame is fixedly installed above the bottom plate, a supporting frame is fixedly installed above the limiting frame, a liquid pump is installed in the center of the supporting frame in a penetrating and inserting mode, a connecting pipe is fixedly installed at the liquid outlet end of the liquid pump, and a conveying pipe is fixedly installed at the front end of the connecting pipe; a limiting pipe is embedded in the upper portion of a limiting frame, external air enters the limiting pipe under the guidance of an air supply turbofan and is compressed by a rotating pressurizing turbofan under the influence of a center conical structure of the limiting pipe and a center conical structure of a transmission shaft, and therefore the gas flow speed is increased; the airflow moves to the position below the flow guide cover through the gap between the flow guide cover and the limiting pipe, so that the airflow drives the atomized fuel to move downwards to impact the conical part of the air fixing pipe to generate turbulent flow, air and the fuel are mixed, and the fuel and the air are mixed conveniently.

Description

Technical Field

[0001] The utility model relates to the technical field of scrap steel preheating, and particularly relates to a scrap steel baking device. Background Art

[0002] The ladle scrap steel preheating technology refers to preheating the scrap steel in a ladle before adding it to a converter. The implementation of this technology enables the scrap steel to have a certain amount of heat when added to the converter, thus accelerating the melting speed, reducing energy consumption, and improving production efficiency. At the same time, since the temperature of the scrap steel is controlled during the preheating process, metal burning loss and chemical composition deviation caused by local high temperature can be avoided.

[0003] The existing Chinese utility model patent with the reference publication number of CN216337782U discloses a scrap steel baking preheating device, which belongs to the technical field of sintering machine equipment. It solves the problem in the prior art that there is currently a lack of a dedicated device for conveniently heating scrap steel in steel mills. It mainly includes a feeding part and a heating part. The feeding part and the heating part are connected by a ground rail. The feeding part includes a carrier vehicle and a scrap steel hopper. The carrier vehicle includes a carrier plate and a power component for driving the movement of the carrier plate. Wheels cooperating with the ground rail are installed at the bottom of the carrier plate, and a plurality of positioning grooves are formed on the carrier plate. A side baffle is installed on one side of the carrier plate. The scrap steel hopper includes a scrap steel hopper body. Lifting lugs are respectively installed on both sides of the scrap steel hopper body, and positioning bumps cooperating with the positioning grooves are installed at the bottom of the scrap steel hopper body. The heating part includes a frame body. A lifting cylinder is fixedly installed on the frame body. The lifting cylinder is connected to a heating hood through a telescopic shaft and drives the lifting of the heating hood. A plurality of burners are installed in the heating hood, and a smoke outlet is formed. The smoke outlet is connected to an exhaust pipe.

[0004] The existing scrap steel baking equipment generally sprays fuel through a nozzle for ignition heating. Since the fuel continuously consumes oxygen in the air, the fuel may not burn fully in this way, affecting the heating effect. At the same time, the existing scrap steel baking equipment cannot fully mix the fuel with oxygen during the heating process, and the fuel combustion efficiency is relatively low. Summary of the Utility Model

[0005] (1) Technical Problems to be Solved

[0006] Aiming at the deficiencies of the prior art, the utility model provides a scrap steel baking device, which has the advantages of mixing fuel with oxygen and avoiding the rapid consumption of oxygen from affecting the heating effect, and solves the above technical problems.

[0007] (2) Technical Solutions

[0008] To achieve the above object, the present utility model provides the following technical solutions: A scrap steel baking device, comprising: a bottom plate, a limiting frame is fixedly installed above the bottom plate, a support frame is fixedly installed above the limiting frame, a liquid pump is inserted and installed at the center of the support frame, a connecting pipe is fixedly installed at the liquid outlet end of the liquid pump, a conveying pipe is fixedly installed at the front end of the connecting pipe, a limiting pipe is fitted and installed above the limiting frame, a connecting ring is fixedly installed inside the limiting pipe, a flow guiding cover is fixedly installed inside the connecting ring, a connecting bearing is fitted and installed at the center of the flow guiding cover, a transmission shaft is fixedly installed inside the connecting bearing, a supercharging vortex fan is fixedly installed at the center of the transmission shaft, and a driving blade is fixedly installed at the lower end of the transmission shaft, a fixing ring is fixedly installed at the upper end of the transmission shaft, a blowing vortex fan is fixedly installed on the outer side of the fixing ring, a limiting ring is fixedly installed on the outer edge of the blowing vortex fan, a limiting bearing is fixedly installed on the outer side of the limiting ring, a fuel pipe is fixedly installed inside the flow guiding cover, an atomizing nozzle is fixedly installed below the fuel pipe, a spark plug is inserted and installed on the outer side of the flow guiding cover, and a fixed air duct is fixedly installed at the bottom end of the limiting pipe; the bottom plate can support the slide rail.

[0009] As a preferred technical solution of the present utility model, a slide rail is fixedly installed above the bottom plate, a slider is movably installed above the slide rail, a multi-stage piston is movably installed on the front side of the bottom plate, a receiving hopper is fixedly installed above the slider, the receiving hopper is slidably connected through the slider and the slide rail, and the front side vertical surface of the receiving hopper is fixedly connected to the movable end of the multi-stage piston; the receiving hopper can receive scrap steel.

[0010] As a preferred technical solution of the present utility model, baffles are fixedly installed on the front and rear sides of the limiting frame, and the baffles are symmetrically installed on the topmost front and rear sides of the limiting frame with the center of the limiting frame as the reference; the baffles can reduce heat loss.

[0011] As a preferred technical solution of the present utility model, the liquid pump is fixedly connected to the limiting frame through the support frame, the liquid pump is communicated with the conveying pipe through the connecting pipe, the conveying pipe is communicated with all fuel pipes, the aperture of the top end of the limiting pipe is larger than that of the bottom end, and the middle section of the limiting pipe is a tapered transition structure; the liquid pump can facilitate the conveying of fuel.

[0012] As a preferred technical solution of the present utility model, the flow guiding cover is fixedly connected to the limiting pipe through the connecting ring, the top end of the flow guiding cover is a half-ring structure, the transmission shaft is rotationally connected to the flow guiding cover through the connecting bearing, the transmission shaft is provided with a tapered structure, and the supercharging vortex fan is annularly installed at the bottom end of the tapered structure of the transmission shaft; convex structures are arranged on the outer side of the connecting ring at an angle of 90 degrees, and the connecting ring can facilitate leaving a certain gap between the flow guiding cover and the limiting pipe.

[0013] As a preferred technical solution of the present utility model, the fixing rings are symmetrically installed on the upper and lower sides of the columnar structure at the top of the transmission shaft. The air supply vortex fan is annularly installed on the outer side of the fixing ring. The limiting ring is rotationally connected to the limiting tube through a limiting bearing; the fixing ring can limit the position of the air supply vortex fan, and the limiting ring can limit the position of the outer edge of the air supply vortex fan.

[0014] As a preferred technical solution of the present utility model, the center of the fuel pipe is of an annular structure. The atomizing nozzles are annularly installed below the annular structure of the fuel pipe at equal angles with the center of the fuel pipe as the reference. The spark plug is inserted into the outer side of the flow guide cover in a "cross" shape at an angle of 90 degrees. The fixed air pipe and the driving blade are made of copper-chromium alloy, and the bottom end of the fixed air pipe is of a conical structure; the fuel pipe can facilitate the fuel to enter the interior of the atomizing nozzle and enable the atomizing nozzles to be annularly distributed inside the flow guide cover.

[0015] Compared with the prior art, the present utility model provides a scrap steel baking device, which has the following beneficial effects:

[0016] 1. Through the setting of the transmission shaft in the present utility model, after the fuel passes through the fuel pipe, it will be sprayed downward in an atomized state through the atomizing nozzle. After the atomized fuel is ignited by the spark plug, the volume of the fuel expands rapidly and moves downward. At the same time, the driving blade drives the transmission shaft to rotate. Since the top end of the transmission shaft is fixedly connected to the air supply vortex fan through the fixing ring, the transmission shaft can drive the air supply vortex fan to rotate when rotating, so that external air enters the interior of the limiting frame under the guidance of the air supply vortex fan to supplement the oxygen consumed by combustion. This way can prevent the oxygen content inside the device from being reduced due to combustion to an extent that affects the heating effect.

[0017] 2. Through the setting of the fuel pipe in the present utility model, the center of the fuel pipe is of an annular structure. The atomizing nozzles are annularly installed below the annular structure of the fuel pipe at equal angles with the center of the fuel pipe as the reference. When the fuel enters the interior of the flow guide cover, it will move downward in a water mist state under the influence of the atomizing nozzles, so as to facilitate the mixing of the fuel and air. There are convex structures on the outer side of the connecting ring at an angle of 90 degrees. The connecting ring can facilitate leaving a certain gap between the flow guide cover and the limiting tube. External air enters the interior of the limiting tube under the guidance of the air supply vortex fan and is compressed by the rotating supercharging vortex fan under the influence of the conical structure at the center of the limiting tube and the conical structure at the center of the transmission shaft, so that the gas flow rate is increased. When the air flow moves through the gap between the flow guide cover and the limiting tube to the lower part of the flow guide cover, the air flow drives the atomized fuel to move downward, hitting the conical part of the fixed air pipe to generate turbulent flow, so as to mix the air and the fuel, facilitating the mixing of the fuel and air. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the overall structure of the present utility model;

[0019] Figure 2 This is a schematic diagram of the connection structure between the receiving hopper and the bottom plate of the present utility model;

[0020] Figure 3 This is a schematic diagram of the connection structure between the limiting pipe and the transmission shaft of the present utility model;

[0021] Figure 4 This is a schematic diagram of the connection structure between the flow guide cover and the fuel pipe of the present utility model;

[0022] Wherein: 1. Bottom plate; 11. Slide rail; 12. Slide block; 13. Multi-stage piston; 14. Receiving hopper; 15. Limiting frame; 16. Baffle; 2. Support frame; 21. Liquid pump; 22. Connecting pipe; 23. Delivery pipe; 24. Limiting pipe; 25. Connecting ring; 26. Flow guide cover; 27. Connecting bearing; 28. Transmission shaft; 29. Supercharging vortex fan; 210. Driving blade; 211. Fixed ring; 212. Air supply vortex fan; 213. Limiting ring; 214. Limiting bearing; 215. Fuel pipe; 216. Atomizing nozzle; 217. Spark plug. Specific embodiments

[0023] The following further describes in detail the embodiments of the present utility model in conjunction with the accompanying drawings and examples. The following examples are used to illustrate the present utility model, but cannot be used to limit the scope of the present utility model.

[0024] In the description of the present utility model, unless otherwise specified, "a plurality of" means two or more; the orientation or positional relationship indicated by terms such as "upper", "lower", "left", "right", "inner", "outer", "front end", "rear end", "head", "tail", etc. is based on the orientation or positional relationship shown in the accompanying drawings, and is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation of the present utility model. In addition, terms such as "first", "second", "third", etc. are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0025] In the description of the present utility model, it should be noted that unless otherwise clearly specified and limited, the terms "connected" and "connection" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0026] Please refer to Figure 1 - Figure 4, in this embodiment, a scrap steel baking device includes: a bottom plate 1, a limiting frame 15 is fixedly installed above the bottom plate 1, a slide rail 11 is fixedly installed above the bottom plate 1, a slider 12 is movably installed above the slide rail 11, a multi-stage piston 13 is movably installed on the front side of the bottom plate 1, a receiving hopper 14 is fixedly installed above the slider 12, the receiving hopper 14 is slidably connected to the slide rail 11 through the slider 12, the front vertical surface of the receiving hopper 14 is fixedly connected to the movable end of the multi-stage piston 13, baffles 16 are fixedly installed on the front and rear sides of the limiting frame 15, and the baffles 16 are symmetrically installed on the topmost positions on the front and rear sides of the limiting frame 15 with the center of the limiting frame 15 as the reference.

[0027] Specifically, the bottom plate 1 can support the slide rail 11, the slide rail 11 can limit the movement direction of the slider 12, the slider 12 can facilitate the movement of the receiving hopper 14, the multi-stage piston 13 can facilitate the movement of the receiving hopper 14 to the lower part of the limiting frame 15, the receiving hopper 14 can receive scrap steel, and the baffle 16 can reduce heat loss.

[0028] A support frame 2 is fixedly installed above the limiting frame 15, a liquid pump 21 is inserted through the center of the support frame 2, a connecting pipe 22 is fixedly installed at the liquid outlet end of the liquid pump 21, a delivery pipe 23 is fixedly installed at the front end of the connecting pipe 22, a limiting pipe 24 is fitted and installed above the limiting frame 15, a connecting ring 25 is fixedly installed inside the limiting pipe 24, a guide hood 26 is fixedly installed inside the connecting ring 25, a connecting bearing 27 is fitted and installed at the center of the guide hood 26, a transmission shaft 28 is fixedly installed inside the connecting bearing 27, a supercharging vortex fan 29 is fixedly installed at the center of the transmission shaft 28, and a driving blade 210 is fixedly installed at the lower end of the transmission shaft 28, a fixing ring 211 is fixedly installed at the upper end of the transmission shaft 28, a blowing vortex fan 212 is fixedly installed on the outer side of the fixing ring 211, a limiting ring 213 is fixedly installed on the outer edge of the blowing vortex fan 212, a limiting bearing 214 is fixedly installed on the outer side of the limiting ring 213, a fuel pipe 215 is fixedly installed inside the guide hood 26, an atomizing nozzle 216 is fixedly installed below the fuel pipe 215, a spark plug 217 is inserted through the outer side of the guide hood 26, and a fixed air pipe 218 is fixedly installed at the bottom end of the limiting pipe 24.

[0029] The liquid pump 21 is fixedly connected to the limiting frame 15 through the support frame 2, the liquid pump 21 is communicated with the delivery pipe 23 through the connecting pipe 22, the delivery pipe 23 is communicated with all the fuel pipes 215, the aperture of the top end of the limiting pipe 24 is larger than that of the bottom end, and the middle section of the limiting pipe 24 is a tapered transition structure.

[0030] The fairing 26 is fixedly connected to the limiting tube 24 through the connecting ring 25. The top end of the fairing 26 is a half-ring structure. A rotating connection is formed between the drive shaft 28 and the fairing 26 through the connecting bearing 27. The drive shaft 28 is provided with a conical structure, and the supercharging vortex fan 29 is annularly installed at the bottom end of the conical structure of the drive shaft 28.

[0031] The fixing rings 211 are symmetrically installed on the upper and lower sides of the cylindrical structure at the top end of the drive shaft 28. The air supply vortex fans 212 are annularly installed on the outer sides of the fixing rings 211. A rotating connection is formed between the limiting ring 213 and the limiting tube 24 through the limiting bearing 214.

[0032] The center of the fuel pipe 215 is of an annular structure. The atomizing nozzles 216 are annularly installed at equal angles below the annular structure of the fuel pipe 215 with the center of the fuel pipe 215 as the reference. The spark plugs 217 are inserted into the outside of the fairing 26 in a "cross" shape at an angle of 90 degrees. The fixed air duct 218 and the driving blade 210 are made of copper-chromium alloy, and the bottom end of the fixed air duct 218 is of a conical structure.

[0033] Specifically, the support frame 2 can support the liquid pump 21. The liquid pump 21 can facilitate the transportation of fuel. The rear end aperture of the connecting pipe 22 is larger than the front end, which can facilitate increasing the fuel hydraulic pressure. The delivery pipe 23 can facilitate the fuel to enter the fuel pipe 215. The limiting tube 24 can limit the position of the fairing 26. The outer side of the connecting ring 25 is provided with protruding structures at an angle of 90 degrees. The connecting ring 25 can facilitate leaving a certain gap between the fairing 26 and the limiting tube 24 to facilitate the passage of air. The connecting bearing 27 can facilitate the rotation of the drive shaft 28. The drive shaft 28 can facilitate the driving blade 210 to drive the air supply vortex fan 212 to rotate. The fixing ring 211 can limit the position of the air supply vortex fan 212. The limiting ring 213 can limit the position of the outer edge of the air supply vortex fan 212. The limiting bearing 214 can reduce the friction between the limiting ring 213 and the limiting tube 24 during rotation. The fuel pipe 215 can facilitate the fuel to enter the inside of the atomizing nozzles 216 and enable the atomizing nozzles 216 to be annularly distributed inside the fairing 26. The atomizing nozzles 216 can facilitate fuel atomization. The spark plugs 217 can ignite the atomized fuel. The fixed air duct 218 can facilitate restricting the position where the flame ejects.

[0034] In use, after passing through the fuel pipe 215, the fuel is sprayed downward in an atomized state through the atomizing nozzle 216. After the atomized fuel is ignited by the spark plug 217, the volume of the fuel expands rapidly and moves downward. At the same time, the drive shaft 28 is driven to rotate by the drive blade 210. Since the top end of the drive shaft 28 is fixedly connected to the air supply vortex fan 212 through the fixing ring 211, the drive shaft 28 can drive the air supply vortex fan 212 to rotate when rotating, so that the external air enters the inside of the limiting frame 15 under the guidance of the air supply vortex fan 212 to supplement the oxygen consumed by combustion. This method can prevent the oxygen content inside the device from being reduced due to combustion to an extent that affects the heating effect. The center of the fuel pipe 215 has an annular structure, and the atomizing nozzle 216 is annularly installed at an equal angle below the annular structure of the fuel pipe 215 with the center of the fuel pipe 215 as a reference. When the fuel enters the inside of the guide cover 26, it will move downward in a water mist state under the influence of the atomizing nozzle 216, so as to facilitate the mixing of the fuel and air. The outer side of the connecting ring 25 is provided with a convex structure at an angle of 90 degrees. The connecting ring 25 can facilitate leaving a certain gap between the guide cover 26 and the limiting pipe 24. The external air enters the inside of the limiting pipe 24 under the guidance of the air supply vortex fan 212 and is compressed by the rotating supercharging vortex fan 29 under the influence of the conical structure in the center of the limiting pipe 24 and the conical structure in the center of the drive shaft 28, so that the gas flow rate is accelerated. When the air flow moves through the gap between the guide cover 26 and the limiting pipe 24 to the lower part of the guide cover 26, the air flow drives the atomized fuel to move downward, hitting the conical part of the fixed air pipe 218 to generate turbulence, so as to mix the air and the fuel, and facilitate the mixing of the fuel and air.

[0035] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principle and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A scrap steel baking device, characterized in that: include: A bottom plate (1), a limit frame (15) is fixedly installed above the bottom plate (1), a support frame (2) is fixedly installed above the limit frame (15), a liquid pump (21) is inserted and installed at the center of the support frame (2), a connecting pipe (22) is fixedly installed at the liquid outlet end of the liquid pump (21), a delivery pipe (23) is fixedly installed at the front end of the connecting pipe (22), a limit pipe (24) is embedded and installed above the limit frame (15), a connecting ring (25) is fixedly installed inside the limit pipe (24), a flow guide cover (26) is fixedly installed inside the connecting ring (25), a connecting bearing (27) is embedded and installed at the center of the flow guide cover (26), a transmission shaft (28) is fixedly installed inside the connecting bearing (27), and the transmission shaft (28) is fixedly installed inside the transmission shaft (2 8) is fixedly mounted with a supercharged turbofan (29) at the center thereof, and a driving blade (210) is fixedly mounted at the lower end of the transmission shaft (28), a fixing ring (211) is fixedly mounted at the upper end of the transmission shaft (28), an air supply turbofan (212) is fixedly mounted on the outer side of the fixing ring (211), a limiting ring (213) is fixedly mounted on the outer edge of the air supply turbofan (212), a limiting bearing (214) is fixedly mounted on the outer side of the limiting ring (213), a fuel pipe (215) is fixedly mounted inside the air guide cover (26), an atomizing nozzle (216) is fixedly mounted below the fuel pipe (215), a spark plug (217) is inserted and mounted on the outer side of the air guide cover (26), and a fixed air pipe (218) is fixedly mounted at the bottom end of the limiting pipe (24).

2. The scrap steel baking equipment according to claim 1, characterized in that: A slide rail (11) is fixedly installed above the base plate (1), a slider (12) is movably installed above the slide rail (11), a multi-stage piston (13) is movably installed on the front side of the base plate (1), a receiving bucket (14) is fixedly installed above the slider (12), the receiving bucket (14) is slidably connected to the slide rail (11) through the slider (12), and the front side vertical surface of the receiving bucket (14) is fixedly connected to the movable end of the multi-stage piston (13).

3. The scrap steel baking equipment according to claim 1, characterized in that: Baffles (16) are fixedly mounted on the front and rear sides of the limiting frame (15); the baffles (16) are symmetrically mounted on the top ends of the front and rear sides of the limiting frame (15) with the center of the limiting frame (15) as a reference.

4. The scrap steel baking equipment according to claim 1, characterized in that: The liquid pump (21) is fixedly connected to the limit frame (15) via a support frame (2); the liquid pump (21) is connected to a delivery pipe (23) via a connecting pipe (22); the delivery pipe (23) is connected to all fuel pipes (215); the top aperture of the limit pipe (24) is larger than the bottom aperture; the middle section of the limit pipe (24) is a conical transition structure.

5. The scrap steel baking equipment according to claim 1, characterized in that: The air deflector (26) is fixedly connected to the limiting tube (24) via a connecting ring (25); the top of the air deflector (26) is a half-circular ring structure; the transmission shaft (28) is rotationally connected to the air deflector (26) via a connecting bearing (27); the transmission shaft (28) is provided with a conical structure; and the supercharged turbofan (29) is annularly mounted on the bottom end of the conical structure of the transmission shaft (28).

6. The scrap steel baking equipment according to claim 1, characterized in that: The fixing ring (211) is symmetrically mounted on the upper and lower sides of the top columnar structure of the transmission shaft (28); the air supply turbofan (212) is mounted in a ring shape on the outside of the fixing ring (211); and the limiting ring (213) is rotatably connected to the limiting tube (24) via a limiting bearing (214).

7. The scrap steel baking equipment according to claim 1, characterized in that: The center of the fuel pipe (215) is annular in structure, the atomizing nozzle (216) is annularly installed below the annular structure of the fuel pipe (215) with the center of the fuel pipe (215) as a reference, the spark plug (217) is inserted into the outer side of the air guide cover (26) in a "cross" shape at a 90-degree angle, the fixed air pipe (218) and the driving blade (210) are made of copper-chromium alloy, and the bottom end of the fixed air pipe (218) is a conical structure.

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