Carbon fuel feeding device for steel manufacturing

Abstract

The invention belongs to the technical field of steel and iron manufacturing, and particularly relates to a carbon fuel feeding device for steel and iron manufacturing, which comprises a feeding box, a reaction furnace arranged below the feeding box, a crushing assembly arranged inside the feeding box, and a screening and preheating assembly arranged below the crushing assembly, according to the carbon fuel feeding device for steel and iron manufacturing, through linkage cooperation of the crushing assembly and the screening and preheating assembly, carbon fuel is subjected to preliminary crushing operation through the crushing assembly and then falls on the surface of a screening plate, screening operation is conducted on the carbon fuel through continuous shaking, the qualified carbon fuel is conveyed into a reaction furnace, and the carbon fuel is fed into the reaction furnace. And meanwhile, the grinding roller can continuously move back and forth on the surface of the screening plate, so that the carbon fuel on the surface of the screening plate is subjected to secondary crushing and grinding, the condition of incomplete combustion caused by the size of carbon fuel particles is greatly reduced, and the reaction efficiency of the reaction furnace is improved.

Description

TECHNICAL FIELD

[0001] The present application belongs to the technical field of steel manufacturing, specifically a carbon fuel feeding device for steel manufacturing. BACKGROUND

[0002] Coke has long occupied a central position in steel manufacturing. Since the development of modern blast furnace ironmaking technology, coke has become an indispensable fuel and reducing agent due to its unique physical and chemical properties. During the early development of the steel industry, as the scale of blast furnaces continued to expand, the demand for coke also continued to grow;

[0003] Modern industry has increasingly high requirements for steel quality, such as in the automotive manufacturing, aerospace, and other fields, requiring high-strength, high-toughness, and high-purity steel products. This requires that the quality and supply method of carbon fuel in the steel manufacturing process better meet the needs of precise control of steel composition and performance.

[0004] A patent with the Chinese invention patent publication number CN110425563B discloses a fuel feeding device used during rare earth smelting, which includes a main box body, a sliding cavity is provided in the main box body, a fixed block is fixedly installed on the bottom wall of the sliding cavity, a third gear rotates to drive a gear rod and a first bevel gear to rotate, the first bevel gear drives a rotating rod to rotate through meshing with a second bevel gear, the rotation of the cam causes the moving plate to vibrate, the fuel in the storage cavity enters the feed plate through the discharge port and the baffle, then the hydraulic pump is started to move the sliding block to the left through the hydraulic rod, after the feed plate enters the inside of the smelting furnace, the fixed block drives the connecting rod to rotate through the cavity, causing the fuel on the feed plate to fall into the smelting furnace, eliminating the need for workers to send fuel into the smelting furnace, avoiding the harm of high temperature to workers, and ensuring that the fuel is sent into the smelting furnace by the feed plate, so that the fuel can burn better.

[0005] However, the above-mentioned technology has the following defects:

[0006] Some of the fuel is in a state of too large particles before feeding. If the fuel particles are too large, it will affect the reaction efficiency in the reaction furnace. In the reaction furnace for steel manufacturing, too large coke particles may cause incomplete combustion, uneven permeability in the furnace, and other problems, and the fuel has some moisture inside when it is fed. The presence of moisture will consume additional heat to evaporate the moisture when the carbon fuel is fed into the reaction furnace, reducing the effective heat supply in the reaction furnace and affecting the reaction efficiency. SUMMARY

[0007] In order to make up for the deficiencies of the prior art and solve at least one technical problem raised in the background art.

[0008] The technical scheme adopted by the present application to solve its technical problems is: a carbon fuel feeding device for steel manufacturing, comprising a feeding box, a reaction furnace arranged below the feeding box, a crushing assembly arranged in the feeding box, a screening and preheating assembly arranged below the crushing assembly, a feeding pipe arranged on one side surface of the feeding box, and a swing feeding assembly arranged on the surface of the feeding pipe.

[0009] The screening and preheating assembly comprises a screening plate slidingly connected to the inside of the feeding box, guide members slidingly connected to the four corners of the surface of the screening plate, the guide members being fixedly installed on the inner side wall of the feeding box, side plates fixedly installed on both sides of the upper surface of the screening plate, a first sliding groove formed in the side surface of each side plate, clamping columns slidingly connected to the inside of each first sliding groove, grinding rollers fixedly installed at one end of each clamping column, annular sliding grooves formed in both sides of the outer surface of each grinding roller, connecting frames rotatably connected to the inside of each annular sliding groove, driven frames slidingly connected to the outer surface of each connecting frame, stand columns fixedly installed on both sides of the inner side wall of each driven frame, connecting frames slidingly connected to the outer surface of each stand column, return springs fixedly installed on the upper surface of each connecting frame and fixedly installed on the outer surface of each stand column, fixing members fixedly installed on the upper surface of each driven frame, reciprocating screw rods threadedly connected to the inside of each fixing member, and driven shafts fixedly installed at one end of each reciprocating screw rod.

[0010] Cam followers are lapped on both sides of the lower surface of the screening plate, transmission shafts are fixedly installed in the inside of each cam follower, and the transmission shafts are rotatably connected to the surface of the feeding box.

[0011] As a preferred technical scheme of the present application, the crushing assembly comprises rotating rods rotatably connected to the surface of the feeding box, crushing rollers fixedly installed on the outer surface of each rotating rod, a driving motor fixedly installed on one side surface of the feeding box through a clamping frame, a driving shaft fixedly installed at the output end of the driving motor, and a transmission column rotatably connected to one side of the outer surface of the feeding box.

[0012] As a preferred technical scheme of the present application, first belt pulleys are fixedly installed on the outer surface of each of the transmission column, one of the rotating rods and the driving shaft, a belt is lapped on the outer surface of each first belt pulley, first gears are fixedly installed on the outer surface of the other rotating rod and the transmission column, the first gears on both sides are meshingly connected to each other, a protection box is arranged on the outer surface of the feeding box, and the protection box is rotatably connected through one of the rotating rods.

[0013] As one preferred technical scheme of the present application, one end of the rotating rod is fixedly installed with a gearbox, the gearbox is fixedly installed on the outer surface of the protection box, the output end of the gearbox and the outer surface of the driven shaft are both fixedly installed with a second belt pulley, the outer surface of the second belt pulley is overlapped with a transmission belt, the other rotating rod and the outer surface of the transmission shaft are both fixedly installed with a third belt pulley, the outer surfaces of the two third belt pulleys are overlapped with a transmission belt, the outer surface of the transmission shaft is rotationally connected with a stabilizing piece, and the stabilizing piece is fixedly installed on the side surface of the feeding box.

[0014] As one preferred technical scheme of the present application, the screening preheating assembly further comprises a gas conveying pipe fixedly and penetratingly connected to the side surface of the feeding box, one end of the gas conveying pipe is fixedly installed with a dispersing pipe, the side surface of the dispersing pipe is fixedly installed with a plurality of spray heads, one end of the gas conveying pipe is connected with the reaction furnace, and the upper surface of the reaction furnace is provided with a feeding port.

[0015] As one preferred technical scheme of the present application, the inner bottom wall of the feeding box is provided with a flow-converging seat, the swing feeding assembly comprises a spiral conveying blade rotationally connected to the inside of the feeding pipe, the outer surface of the feeding pipe is fixedly installed with a servo motor through a support plate, the output end of the servo motor is fixedly installed with a driving rod, and one end of the driving rod is fixedly installed with the spiral conveying blade.

[0016] As one preferred technical scheme of the present application, the outer surface of the feeding pipe is fixedly installed with a connecting pipe, the lower surface of the connecting pipe is fixedly installed with a corrugated hose, the bottom of the corrugated hose is fixedly installed with a feeding hopper, the two side surfaces of the connecting pipe are both fixedly installed with a support ring, the inside of the support ring is rotationally connected with a rotating plate, one side surface of the rotating plate is fixedly installed with a fixing column, and the outer surface of the fixing column is slidingly connected with a clamping plate.

[0017] As one preferred technical scheme of the present application, the lower surface of the clamping plate is fixedly installed with a driven gear plate, the lower surface of the driven gear plate is meshingly connected with a driven gear, the inside of the driven gear is fixedly installed with a driven shaft, the outer surface of the driven shaft is rotationally connected with the connecting pipe, the outer surface of the driven shaft is fixedly installed with a driven plate, one end of the driven plate is fixedly installed with a fixing ring through a connecting column, and the fixing ring is fixedly installed on the outer surface of the feeding hopper.

[0018] As a kind of preferred technical scheme of the application, the outer surface of the driven tooth plate is provided with a rectangular chute, the inside of the rectangular chute is slidably connected with a stabilizing block, the stabilizing block is fixedly installed on the lower surface of the support ring, the surface of the rotating plate is fixedly installed with a shaft body, the outer surface of the support ring is fixedly installed with a side clamping frame, the inside of the side clamping frame is rotatably connected with a clamping column, the outer surface of the clamping column and the horizontal shaft are both fixedly installed with a bevel gear, the two bevel gears are meshingly connected, the outer surface of the clamping column and the driving rod are both fixedly installed with a fifth belt pulley, and the outer surface of the fourth belt pulley and the fifth belt pulley is respectively overlapped with a belt pulley.

[0019] As a kind of preferred technical scheme of the application, the upper surface of the feeding box is provided with a feeding hopper, the two sides of the inner side wall of the feeding hopper are both rotatably connected with a rotating rod, the outer surface of the rotating rod is fixedly installed with a reset plate, one end of the rotating rod is rotatably connected with a side plate, and the side plate and the rotating rod are connected with a torsion spring.

[0020] The beneficial effects of the present application are as follows:

[0021] 1. The carbon fuel feeding device for steel manufacturing provided by the present application, through the linkage cooperation of the crushing assembly and the screening preheating assembly, the carbon fuel is preliminarily crushed by the crushing assembly, then falls on the surface of the screening plate, and is screened by continuously shaking, the qualified carbon fuel is conveyed into the reaction furnace, and the grinding roller continuously moves back and forth on the surface of the screening plate, so as to secondarily crush the carbon fuel on the surface of the screening plate and grind the carbon fuel, greatly reducing the size of the carbon fuel particles and the incomplete combustion caused by the large size of the carbon fuel particles, and improving the reaction efficiency of the reaction furnace.

[0022] 2. The carbon fuel feeding device for steel manufacturing provided by the present application, through the screening preheating assembly, the carbon fuel above the screening plate is shaken into the air during continuous shaking, the hot gas in the reaction furnace passes through the gas conveying pipe and the dispersion pipe, and then is sprayed to the carbon fuel by the spray head to preheat the carbon fuel and evaporate the moisture in the carbon fuel, thereby improving the effective heat supply in the reaction furnace and the reaction efficiency.

[0023] 3. The carbon fuel feeding device for steel manufacturing, according to the present application, through the setting of the swing feeding assembly, the servo motor is started to drive the spiral conveying blade to rotate, so that the carbon fuel is input into the feeding pipe, and then the carbon fuel is input into the reaction furnace through the bottom feeding hopper, in the process of spiral conveying blade rotating, the feeding hopper swings back and forth at the connection of corrugated hose, so that the carbon fuel can be input into the inside of the reaction furnace in all directions, the carbon fuel burns more evenly, and the combustion efficiency and reaction effect are improved, and the operation of carbon fuel feeding by workers is not needed, and the workers are prevented from being harmed by high temperature. BRIEF DESCRIPTION OF DRAWINGS

[0024] The present application is further described below in conjunction with the accompanying drawings.

[0025] Figure 1 is a perspective view of the present application;

[0026] Figure 2 is a structure schematic view of the crushing assembly in the present application;

[0027] Figure 3 is a partial structure schematic view of the screening and preheating assembly in the present application;

[0028] Figure 4 is a structure schematic view of the screening and preheating assembly in the present application;

[0029] Figure 5 is a structure schematic view of the feeding pipe and swing feeding assembly in the present application;

[0030] Figure 6 is a structure schematic view of the swing feeding assembly in the present application;

[0031] Figure 7 is an enlarged structure schematic view of B in the present application; Figure 6

[0032] is an enlarged structure schematic view of A in the present application; Figure 8 Figure 4

[0033] ​​In the diagram: 1. Feeding box; 2. Crushing assembly; 201. Crushing roller; 202. Drive motor; 203. First pulley; 204. First gear; 3. Screening preheating assembly; 301. Screening plate; 302. Grinding roller; 303. Connecting frame; 304. Driven frame; 305. Return spring; 306. Reciprocating screw; 307. Cam; 308. Gearbox; 309. Second pulley; 310. Third pulley; 311. Stabilizer; 312. Air supply pipe; 313. Divider 314. Spray tube; 4. Nozzle; 5. Feeding pipe; 6. Oscillating feeding assembly; 7. Spiral conveyor blade; 8. Servo motor; 9. Corrugated hose; 10. Feeding hopper; 11. Rotating plate; 22. Card plate; 33. Driven gear plate; 44. Driven gear; 55. Driven plate; 66. Rectangular chute; 77. Horizontal shaft; 88. Bevel gear; 9. Reactor; 10. Concentrating seat; 11. Feed hopper; 12. Rotating rod; 13. Reset plate; 14. Torsion spring. Detailed Implementation

[0034] To make the technical means, creative features, objectives and effects of this invention easier to understand, the invention will be further described below in conjunction with specific embodiments.

[0035] Example 1:

[0036] like Figures 1 to 8 As shown in the embodiment of the present invention, a carbon fuel feeding device for steel manufacturing includes a feeding box 1, a reactor 6 is arranged below the feeding box 1, a crushing component 2 is arranged inside the feeding box 1, a screening and preheating component 3 is arranged below the crushing component 2, a feeding pipe 4 is arranged on one side surface of the feeding box 1, and a swing feeding component 5 is arranged on the surface of the feeding pipe 4.

[0037] The screening preheating assembly 3 comprises a screening plate 301 slidably connected to the inside of the feeding box 1, guide pieces are slidably connected to the four corners of the surface of the screening plate 301, the guide pieces are fixedly installed on the inner side wall of the feeding box 1, side plates are fixedly installed on the two sides of the upper surface of the screening plate 301, a first sliding groove is formed in the side surface of the side plate, clamping columns are slidably connected in the first sliding groove, a grinding roller 302 is fixedly installed at one end of the two clamping columns, annular sliding grooves are formed in the two sides of the outer surface of the grinding roller 302, a connecting frame 303 is rotatably connected in the annular sliding groove, the connecting frame 303 is slidably connected to the outer surface of the driven frame 304, stand columns are fixedly installed on the two sides of the inner side wall of the driven frame 304, the connecting frame 303 is slidably connected to the outer surface of the stand column, a reset spring 305 is fixedly installed on the upper surface of the connecting frame 303, the other end of the reset spring 305 is fixedly installed on the outer surface of the stand column, a fixing piece is fixedly installed on the upper surface of the driven frame 304, a reciprocating screw rod 306 is threadedly connected in the fixing piece, a driven shaft is fixedly installed at one end of the reciprocating screw rod 306, cams 307 are overlapped on the two sides of the lower surface of the screening plate 301, a transmission shaft is fixedly installed in the inside of the two cams 307, and the transmission shaft is rotatably penetrated through the surface of the feeding box 1.

[0038] One end of one rotating rod is fixedly installed with a gearbox 308, the gearbox 308 is fixedly installed on the outer surface of the protection box, the output end of the gearbox 308 and the outer surface of the driven shaft are fixedly installed with second belt pulleys 309, the outer surfaces of the second belt pulleys 309 are overlapped with transmission belts, the other rotating rod and the outer surface of the transmission shaft are fixedly installed with third belt pulleys 310, the outer surfaces of the two third belt pulleys 310 are overlapped with transmission belts, and a stabilizing piece 311 is rotatably connected to the outer surface of the transmission shaft.

[0039] The screening preheating assembly 3 further comprises a gas conveying pipe 312 fixedly and penetratingly connected to the side surface of the feeding box 1, a dispersing pipe 313 is fixedly installed at one end of the gas conveying pipe 312, a plurality of nozzles 314 are fixedly installed on the side surface of the dispersing pipe 313, one end of the gas conveying pipe 312 is connected with the reaction furnace 6, and a feeding inlet is formed in the upper surface of the reaction furnace 6.

[0040] In the embodiment: first, the carbon fuel is preliminarily crushed by the crushing assembly 2, and then falls on the upper surface of the screening plate 301; the inside of the gearbox 308 is driven to rotate by the rotating rod; the output end of the gearbox 308 drives the other side of the driven shaft to rotate by the second belt pulley 309; the driven frame 304 is driven to move by the reciprocating lead screw 306; the fixed part and the driven frame 304 are driven to move by the reciprocating lead screw 306; the grinding roller 302 is driven to slide on the upper surface of the screening plate 301, so that the carbon fuel on the surface of the screening plate 301 is secondarily crushed and ground; the grinding roller 302 can stably move by driving the cam 307 on the outer surface of the transmission shaft to rotate by the third belt pulley 310; the screening plate 301 is shaken up and down on the outer surface of the guide part, so that the carbon fuel on the surface of the screening plate 301 is shaken into the air, facilitating the screening operation; the grinding roller 302 is pressed to move by the screening plate 301; the connecting frame 303 is driven to slide on the outer surface of the column in the driven frame 304; the reset spring 305 is deformed; the grinding roller 302 is always tightly attached to the upper surface of the screening plate 301; the carbon fuel is ground; the carbon fuel particles are greatly reduced, so that the incomplete combustion is reduced; and the reaction efficiency of the reaction furnace is improved.

[0041] In the screening process, a small part of heat generated by the combustion in the reaction furnace 6 is input into the gas conveying pipe 312 and the dispersing pipe 313, and is sprayed outward by the nozzle 314, so that the carbon fuel is better preheated, the water in the carbon fuel is evaporated, the effective heat supply in the reaction furnace 6 is improved, and the reaction efficiency is improved.

[0042] Embodiment two:

[0043] As shown in Figure 2 With Figure 3 The crushing assembly 2 comprises a rotating rod rotatably connected to the surface of the feeding box 1; the outer surface of the rotating rod is fixedly installed with a crushing roller 201; one side surface of the feeding box 1 is fixedly installed with a driving motor 202 through a clamping frame; the output end of the driving motor 202 is fixedly installed with a driving shaft; the outer surface of one side of the feeding box 1 is rotatably connected with a transmission column; the outer surfaces of the transmission column and the other rotating rod are fixedly installed with a first belt pulley 203; the outer surfaces of a plurality of first belt pulleys 203 are lapped with a belt; the outer surfaces of the other rotating rod and the transmission column are fixedly installed with a first gear 204; the two first gears 204 are rotatably connected with each other; the outer surface of the feeding box 1 is provided with a protection box; and one of the rotating rods is rotatably connected with the protection box.

[0044] In the embodiment: by starting the driving motor 202 to drive the driving shaft to rotate, the driving shaft drives the transmission column and one of the rotating rods to rotate synchronously through the first belt pulley 203 arranged on the outer surface, the transmission column drives the rotating rods on the other side to rotate reversely through the first gear 204, the rotating rods on both sides drive the crushing rollers 201 on the outer surface to rotate reversely, so as to preliminarily crush the carbon fuel, reduce the problems that the excessive carbon fuel may cause incomplete combustion, uneven air permeability in the furnace, etc.

[0045] Embodiment three:

[0046] As shown in Figures 5 to 7 The inner bottom wall of the feeding box 1 is provided with a flow-converging seat 7, the swing feeding assembly 5 comprises a spiral conveying blade 501 rotatably connected to the inside of the feeding pipe 4, the outer surface of the feeding pipe 4 is fixedly installed with a servo motor 502 through a support plate, the output end of the servo motor 502 is fixedly installed with a driving rod, one end of the driving rod is fixedly installed with the spiral conveying blade 501, the outer surface of the feeding pipe 4 is fixedly installed with a connecting pipe, the lower surface of the connecting pipe is fixedly installed with a corrugated hose 503, the bottom of the corrugated hose 503 is fixedly installed with a feeding hopper 504, the two side surfaces of the connecting pipe are both fixedly installed with a support ring, the inside of the support ring is rotatably connected with a rotating plate 505, one side surface of the rotating plate 505 is fixedly installed with a fixing column, the outer surface of the fixing column is slidably connected with a clamping plate 506, the lower surface of the clamping plate 506 is fixedly installed with a driven gear plate 507, the lower surface of the driven gear plate 507 is meshingly connected with a driven gear 508, the inside of the driven gear 508 is fixedly installed with a driven shaft, the outer surface of the driven shaft is rotatably connected with the outer surface of the connecting pipe, the outer surface of the driven shaft is fixedly installed with a driven plate 509, one end of the driven plate 509 is fixedly installed with a fixing ring through a connecting column, the fixing ring is fixedly installed on the outer surface of the feeding hopper 504, the outer surface of the driven gear plate 507 is provided with a rectangular sliding groove 510, the inside of the rectangular sliding groove 510 is slidably connected with a stabilizing block, the stabilizing block is fixedly installed on the lower surface of the support ring, the surface of the rotating plate 505 is fixedly installed with a shaft body, the outer surface of the support ring is fixedly installed with a side clamping frame, the inside of the side clamping frame is rotatably connected with a horizontal shaft 511, the two ends of the horizontal shaft 511 and the outer surface of the shaft body are both fixedly installed with a fourth belt pulley, the inside side wall of the side clamping frame is rotatably connected with a clamping column, the clamping column and the outer surface of the horizontal shaft 511 are both fixedly installed with a bevel gear 512, the two bevel gears 512 are meshingly connected with each other, the clamping column and the outer surface of the driving rod are both fixedly installed with a fifth belt pulley, the outer surfaces of the fourth belt pulley and the fifth belt pulley are respectively lapped with a belt pulley.

[0047] In the embodiment, after the screening of the carbon fuel is completed, the carbon fuel flows into one end of the feeding pipe 4 through the flow collecting seat 7, and then the servo motor 502 is started to rotate the spiral conveying blade 501, so that the carbon fuel is fed downward through the feeding hopper 504 at the bottom of the feeding pipe 4, the driving rod rotates the clamping column below through the fifth belt pulley, the clamping column rotates the transverse shaft 511 on the other side through the intermeshing bevel gears 512, the transverse shaft 511 stably rotates inside the side clamping frame, the transverse shaft 511 drives the rotating plates 505 on both sides to stably rotate inside the supporting ring through the fourth belt pulleys at both ends, the rotating plates 505 drive the fixed columns on the side surface to slide back and forth on the inner side wall of the clamping plate 506, so that the clamping plate 506 moves back and forth, the clamping plate 506 drives the driven gear plate 507 below to move synchronously, the movement of the driven gear plate 507 drives the driven gear 508 to rotate, the driven gear 508 drives the driven shaft inside to rotate, the driven shaft drives the driven plate 509 on the outer surface to rotate, the driven plate 509 drives the feeding hopper 504 to move back and forth through the fixed ring at one end, the feeding hopper 504 is connected with the feeding pipe 4 through the corrugated hose 503, the carbon fuel is fed outward from the feeding hopper 504 through the corrugated hose 503, and the carbon fuel is transported to a farther place on both sides through the swinging centrifugal force, so that the carbon fuel can be input into the reaction furnace 6 in all directions, the carbon fuel burns more uniformly, and the combustion efficiency and the reaction effect are improved, and the carbon fuel feeding operation does not need to use workers, so that the workers are prevented from being harmed by high temperature.

[0048] Embodiment four:

[0049] As shown in Figure 1 , Figure 5 and Figure 8 , the upper surface of the feeding box 1 is provided with the feeding hopper 8, the two sides of the inner side wall of the feeding hopper 8 are rotatably connected with the rotating rods 9, the outer surface of the rotating rod 9 is fixedly installed with the reset plate 10, and one end of the rotating rod 9 is rotatably connected with the side plate.

[0050] In the embodiment, the carbon fuel is input into the inside of the feeding box 1 through the feeding hopper 8, the carbon fuel is input onto the surface of the reset plate 10, the reset plate 10 is rotated through gravity, the carbon fuel falls smoothly, then the rotating rod 9 drives the reset plate 10 to reset and rotate through the reset force of the torsional spring 11, so that the overflow of dust is reduced, and the working environment is improved.

[0051] The above-mentioned front, back, left, right, top and bottom are based on the Figure 1 in the drawings of the specification, and are defined as front, left, right, top and bottom according to the standard of the human observation angle, and the side facing the observer is defined as front, the left side of the observer is defined as left, and the like.

[0052] In the description of the application, it is to be understood that the terms "center", "longitudinal", "transverse", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings and are used only for the purpose of facilitating the description of the application and simplifying the description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the scope of protection of the application.

[0053] The basic principles, main features and advantages of the application are shown and described above. Those skilled in the art should understand that the application is not limited by the above examples, and the above examples and descriptions in the specification are only to illustrate the principles of the application. Without departing from the spirit and scope of the application, various changes and improvements can be made to the application, and these changes and improvements all fall within the scope of the application. The scope of protection of the application is defined by the appended claims and their equivalents.

Claims

1. A carbon fuel injection device for steel manufacturing, characterized by: Including the feeding box (1), the lower part of the feeding box (1) is provided with a reaction furnace (6), the inside of the feeding box (1) is provided with a crushing assembly (2), the lower part of the crushing assembly (2) is provided with a screening preheating assembly (3), one side surface of the feeding box (1) is provided with a feeding pipe (4), the surface of the feeding pipe (4) is provided with a swing feeding assembly (5); The screening preheating assembly (3) includes a screening plate (301) slidably connected to the inside of the feeding box (1), guide members are slidably connected to the four corners of the surface of the screening plate (301), the guide members are fixedly installed on the inner side wall of the feeding box (1), side plates are fixedly installed on both sides of the upper surface of the screening plate (301), a first sliding groove is formed in the side surface of the side plate, clamping columns are slidably connected in the first sliding groove, grinding rollers (302) are fixedly installed at one end of the two clamping columns, annular sliding grooves are formed in both sides of the outer surface of the grinding roller (302), connecting frames (303) are rotatably connected in the annular sliding grooves, driven frames (304) are slidably connected to the outer surface of the connecting frame (303), stand columns are fixedly installed on both sides of the inner side wall of the driven frame (304), the outer surface of the stand column is slidably connected with the connecting frame (303), reset springs (305) are fixedly installed on the upper surface of the connecting frame (303), the other end of the reset spring (305) is fixedly installed on the outer surface of the stand column, a fixing member is fixedly installed on the upper surface of the driven frame (304), a reciprocating screw rod (306) is threadedly connected in the fixing member, and a driven shaft is fixedly installed at one end of the reciprocating screw rod (306). Cam followers (307) are lapped on both sides of the lower surface of the screening plate (301), drive shafts are fixedly installed in the cam followers (307), and the drive shafts are rotatably connected to the surface of the feeding box (1).

2. The carbon fuel charging device for steel manufacturing according to claim 1, characterized by: The crushing assembly (2) includes rotating rods rotatably connected to the surface of the feeding box (1), crushing rollers (201) are fixedly installed on the outer surface of the rotating rods, a drive motor (202) is fixedly installed on one side surface of the feeding box (1) through a clamping frame, a drive shaft is fixedly installed on the output end of the drive motor (202), and a transmission column is rotatably connected to one side of the outer surface of the feeding box (1).

3. The carbon fuel charging device for steel manufacturing according to claim 2, characterized by: First belt pulleys (203) are fixedly installed on the outer surfaces of the transmission column, one of the rotating rods and the drive shaft, a plurality of belts are lapped on the outer surfaces of the first belt pulleys (203), first gears (204) are fixedly installed on the outer surfaces of the other rotating rod and the transmission column, the first gears (204) on both sides are rotatably connected to each other, a protection box is arranged on the outer surface of the feeding box (1), and the protection box is rotatably connected to one of the rotating rods.

4. The carbon fuel charging device for steel manufacturing according to claim 3, characterized by: One end of the rotating rod is fixedly installed with a gearbox (308), the gearbox (308) is fixedly installed on the outer surface of the protection box, the output end of the gearbox (308) and the outer surface of the driven shaft are fixedly installed with a second belt pulley (309), the outer surface of the second belt pulley (309) is overlapped with a transmission belt, the other rotating rod and the outer surface of the transmission shaft are fixedly installed with a third belt pulley (310), the outer surfaces of the two third belt pulleys (310) are overlapped with a transmission belt, the outer surface of the transmission shaft is rotatably connected with a stabilizing piece (311), and the stabilizing piece (311) is fixedly installed on the side surface of the feeding box (1).

5. The carbon fuel charging device for steel manufacturing according to claim 1, characterized by: The screening preheating assembly (3) further comprises a gas conveying pipe (312) fixedly and penetratingly connected to the side surface of the feeding box (1), one end of the gas conveying pipe (312) is fixedly installed with a dispersing pipe (313), the side surface of the dispersing pipe (313) is fixedly installed with a plurality of spray heads (314), one end of the gas conveying pipe (312) is connected with the reaction furnace (6), and the upper surface of the reaction furnace (6) is provided with a feeding inlet.

6. The carbon fuel charging device for steel manufacturing according to claim 1, characterized by: The inner bottom wall of the feeding box (1) is provided with a flow-converging seat (7), the swing feeding assembly (5) comprises a spiral conveying blade (501) rotatably connected to the inside of the feeding pipe (4), the outer surface of the feeding pipe (4) is fixedly installed with a servo motor (502) through a support plate, the output end of the servo motor (502) is fixedly installed with a driving rod, and one end of the driving rod is fixedly installed with the spiral conveying blade (501).

7. The carbon fuel charging device for steel manufacturing according to claim 6, characterized by: The outer surface of the feeding pipe (4) is fixedly installed with a connecting pipe, the lower surface of the connecting pipe is fixedly installed with a corrugated hose (503), the bottom of the corrugated hose (503) is fixedly installed with a feeding hopper (504), and the two side surfaces of the connecting pipe are fixedly installed with support rings, the inside of the support ring is rotatably connected with a rotating plate (505), one side surface of the rotating plate (505) is fixedly installed with a fixed column, and the outer surface of the fixed column is slidably connected with a clamping plate (506).

8. The carbon fuel charging device for steel manufacturing according to claim 7, characterized by: The lower surface of the clamping plate (506) is fixedly installed with a driven toothed plate (507), the lower surface of the driven toothed plate (507) is meshingly connected with a driven gear (508), the inside of the driven gear (508) is fixedly installed with a driven shaft, the outer surface of the driven shaft is rotatably connected with the outer surface of the connecting pipe, the outer surface of the driven shaft is fixedly installed with a driven plate (509), one end of the driven plate (509) is fixedly installed with a fixed ring through a connecting column, and the fixed ring is fixedly installed on the outer surface of the feeding hopper (504).

9. The carbon fuel charging device for steel manufacturing according to claim 8, characterized by: The outer surface of the driven tooth plate (507) is provided with a rectangular chute (510), the inside of the rectangular chute (510) is slidably connected with a stabilizing block, the stabilizing block is fixedly installed on the lower surface of the supporting ring, the surface of the rotating plate (505) is fixedly installed with a shaft body, the outer surface of the supporting ring is fixedly installed with a side clamping frame, the both ends of the horizontal shaft (511) are fixedly installed with fourth belt pulleys on the outer surface of the shaft body, the inner side wall of the side clamping frame is rotatably connected with a clamping column, the outer surface of the clamping column and the horizontal shaft (511) are fixedly installed with a bevel gear (512), the two bevel gears (512) are meshingly connected, the outer surface of the clamping column and the driving rod are fixedly installed with fifth belt pulleys, and the outer surfaces of the fourth belt pulleys and the fifth belt pulleys are respectively overlapped with belt pulleys.

10. The carbon fuel charging device for steel manufacturing according to claim 1, characterized by: The upper surface of the feeding box (1) is provided with an inlet hopper (8), the both sides of the inner side wall of the inlet hopper (8) are rotatably connected with rotating rods (9), the outer surface of the rotating rod (9) is fixedly installed with a reset plate (10), one end of the rotating rod (9) is rotatably connected with a side plate, and the side plate and the rotating rod (9) are connected with a torsion spring (11).

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