A blast furnace bunker diversion device

Abstract

The present invention belongs to the technical field of blast furnace bunker diversion, and specifically relates to a blast furnace bunker diversion device, which includes a conveying frame. The upper surface of the conveying frame is fixedly connected with a premixing frame. The upper surface of the premixing frame is provided with a feed inlet. A premixing component is arranged inside the conveying frame, and the premixing component is used for premixing coke and raw iron ore. The premixing component includes a premixing rake slidably arranged at the top of the premixing frame. A conveying component is arranged inside the conveying frame, and the conveying component is used for conveying the premixed mixture of raw iron ore and coke. A discharge port is arranged on one side of the conveying frame, and a buffer component is arranged on the lower surface of the discharge port. The buffer component is used for dispersing and buffering the mixture. The buffer component includes an annular frame fixedly connected to the lower surface of the discharge port. Through the diversion frame, the problem that the raw iron ore and coke stone materials will erode the inner wall of one side of the blast furnace for a long time, resulting in wear of the blast furnace, is solved.

Description

Technical Field

[0001] The present invention belongs to the technical field of blast furnace bunker diversion, and specifically relates to a blast furnace bunker diversion device. Background Art

[0002] As a core equipment in the iron and steel smelting process, the blast furnace bunker stores key smelting raw materials such as iron ore and coke, and is usually made of materials such as high-strength and corrosion-resistant steel plates and steel bars to ensure that the blast furnace can continuously and stably obtain the required materials, thereby maintaining efficient production. The smooth operation of the blast furnace bunker is directly related to the production efficiency and product quality of the blast furnace, and is an indispensable part of the iron and steel smelting process.

[0003] In the existing blast furnace smelting process, first, the charging basket moves down along the conveyor belt into the storage bunker, and a basket of crushed raw iron ore is first loaded and taken. Then, the charging basket moves along the conveyor belt to the top of the blast furnace and pours the raw iron ore into the feed hopper at the top of the blast furnace. The raw iron ore passing through the feed hopper falls along the inner wall of the blast furnace. Then, a basket of coke is loaded into the feed hopper of the blast furnace, and this process is repeated for the smelting of molten iron. However, during the charging process, when the charging basket dumps the materials, the raw iron ore will directly rub against one side inner wall of the blast furnace after passing through the feed hopper. In this way, the inner wall of the blast furnace is eroded for a long time, causing relatively large wear on the inner wall of the blast furnace and affecting the service life of the blast furnace.

[0004] Therefore, the present invention provides a blast furnace bunker diversion device. Summary of the Invention

[0005] In order to make up for the deficiencies of the prior art and solve at least one technical problem proposed in the background art.

[0006] The technical solution adopted by the present invention to solve its technical problems is as follows: A blast furnace bunker diversion device of the present invention includes a transfer frame, and a premixing frame is fixedly connected to the upper surface of the transfer frame. An inlet is opened on the upper surface of the premixing frame. A premixing component is arranged inside the transfer frame, and the premixing component is used for premixing coke and raw iron ore. The premixing component includes a premixing rake slidably arranged at the top of the premixing frame.

[0007] A transfer component is arranged inside the transfer frame, and the transfer component is used for transferring the premixed mixture of raw iron ore and coke.

[0008] A discharge opening is opened on one side of the transfer frame, and a buffer component is arranged on the lower surface of the discharge opening. The buffer component is used for dispersing and buffering the mixture. The buffer component includes an annular frame fixedly connected to the lower surface of the discharge opening. A diversion frame is rotatably connected to the lower surface of the annular frame. A discharge groove is opened on the lower surface of the diversion frame, and the discharge groove is used for discharging the mixture.

[0009] Preferably, an annular guide groove is formed on the lower surface of the annular frame, and two guide rods are fixedly connected to the upper surface of the diversion frame. The diversion frame can rotate along the annular guide groove through the guide rods.

[0010] Preferably, a bending point is arranged in the middle of the diversion frame to buffer the mixed material through the bending point of the diversion frame, and at the same time, the rotating diversion frame is used for dispersing and discharging the mixed material to prevent the mixed material from only scouring one side of the inner wall of the blast furnace.

[0011] Preferably, the premixing component includes a top plate fixedly connected to the upper surface of the premixing frame, a positioning frame fixedly connected inside the premixing frame, two feeding plates rotatably arranged inside the positioning frame, a second groove body formed on one side of the positioning frame, a connecting plate rotatably connected inside the second groove body, a first motor fixedly connected to the upper surface of the top plate, a belt drivingly connected to the output end of the first motor, a reciprocating screw rod drivingly connected to the end of the belt away from the first motor, a sliding rod slidably connected to the circumferential surface of the reciprocating screw rod, a connecting frame fixedly connected to the surface of the sliding rod, and two premixing rakes fixedly connected to the surface of the connecting frame.

[0012] Preferably, the two premixing rakes are fixedly connected to both sides of the connecting frame, and the two premixing rakes are arranged in a cross-reverse manner for better premixing of the material.

[0013] Preferably, a first cavity is formed inside the sliding rod, a gear is rotatably connected inside the first cavity, the gear meshes with a first rack plate, the gear also meshes with a second rack plate, a cleaning plate is fixedly connected to the lower surface of the second rack plate, a first groove body is formed inside the connecting frame, the cleaning plate is retracted inside the first groove body, a positioning plate is fixedly connected to one side of the first rack plate, and an elastic member is arranged on one side of the sliding rod corresponding to the first rack plate, and the elastic member is used for resetting the first rack plate.

[0014] Preferably, the elastic member includes a second cavity formed at the top end of the sliding rod, a compression spring fixedly connected to the top wall of the second cavity, a fixing block fixedly connected to the bottom end of the compression spring, and the lower surface of the fixing block abuts against the first rack plate.

[0015] Preferably, the cleaning plate is made of rubber material, which can reduce the scratching of the surface of the feeding plate during the cleaning process.

[0016] Preferably, the conveying component includes a third motor fixedly connected to one side of the conveying frame, and two augers are rotatably connected to the output end of the third motor. The two augers are used for conveying the premixed mixed material.

[0017] Preferably, a second motor is fixedly connected to the side of the conveying frame away from the third motor. The output end of the second motor is rotationally connected to a rotating shaft, and a plurality of stirring rods are fixedly connected to the circumferential surface of the rotating shaft. The plurality of stirring rods are used to prevent the mixture from accumulating on the auger.

[0018] The beneficial effects of the present invention are as follows:

[0019] 1. For the blast furnace bunker diversion device of the present invention, the rotating diversion frame is used to disperse and discharge the mixture, so that the mixed raw iron ore and coke can be evenly spread on the bottom of the blast furnace during the discharging process, improving the smelting efficiency of the blast furnace. At the same time, the provided diversion frame can slow down the impact force of the ore falling during the discharging process, so that the mixture will no longer only scour one inner wall of the blast furnace, protecting the inner wall of the blast furnace to a certain extent and extending the service life of the blast furnace.

[0020] 2. For the blast furnace bunker diversion device of the present invention, when all the materials are pushed onto the two discharging plates through the rotating connecting plate, due to the increase in the amount of materials, the water level of the materials in the premixing frame will increase. The materials with the increased water level will squeeze the positioning plate, raising the height of the positioning plate. During the process of raising the positioning plate, the first rack plate fixedly connected to one side thereof will be driven. The rotation of the first rack plate will drive the gear to rotate, and the rotation of the gear will drive the second rack plate to move downward. The downward movement of the second rack plate will push out the cleaning plate, making the cleaning plate abut against the upper surfaces of the two discharging plates, so as to scrape the ore powder adhered to the surfaces of the two discharging plates, making the two discharging plates smooth and improving the discharging effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] The present invention will be further described below with reference to the accompanying drawings.

[0022] Figure 1 is a perspective view of Embodiment 1 of the present invention;

[0023] Figure 2 is a bottom view of the main body of the present invention;

[0024] Figure 3 is a schematic structural view of the annular frame of the present invention;

[0025] Figure 4 is a schematic exploded structural view of the annular frame of the present invention;

[0026] Figure 5 is a schematic structural view of the premixing assembly of the present invention;

[0027] Figure 6 is a sectional view of the sliding rod of the present invention;

[0028] Figure 7 is a schematic structural view of the positioning frame of the present invention;

[0029] Figure 8 It is a schematic structural diagram of the conveying component of the present invention.

[0030] In the figure: 1, conveying frame; 11, premixing frame; 12, top plate; 13, feed inlet;

[0031] 2, first motor; 21, belt; 22, reciprocating screw; 23, sliding rod; 24, first cavity; 25, gear; 26, first rack plate; 27, positioning plate; 28, second rack plate; 29, connecting frame; 210, first groove; 211, cleaning plate; 212, second cavity; 213, compression spring; 214, fixed block; 215, premixing rake; 216, blanking plate; 217, positioning frame; 218, second groove; 219, connecting plate;

[0032] 3, second motor; 31, rotating shaft; 32, stirring rod; 33, third motor; 34, auger; 35, blanking port;

[0033] 4, annular frame; 41, diversion frame; 42, blanking chute; 43, guide rod; 44, annular guide groove. Detailed implementation manners

[0034] In order to make the technical means, creative features, achieved purposes and effects of the present invention easy to understand, the present invention will be further described below in conjunction with specific implementation manners.

[0035] Embodiment 1: As Figures 1 to 8 shown, a blast furnace bunker diversion device according to an embodiment of the present invention includes a conveying frame 1. A premixing frame 11 is fixedly connected to the upper surface of the conveying frame 1. A feed inlet 13 is opened on the upper surface of the premixing frame 11. A premixing component is arranged inside the conveying frame 1. The premixing component is used for premixing coke and raw iron ore. The premixing component includes a premixing rake 215 slidably arranged at the top of the premixing frame 11; a conveying component is arranged inside the conveying frame 1. The conveying component is used for conveying the premixed mixture of raw iron ore and coke; a blanking port 35 is opened on one side of the conveying frame 1. A buffer component is arranged on the lower surface of the blanking port 35. The buffer component is used for dispersing and buffering the mixture. The buffer component includes an annular frame 4 fixedly connected to the lower surface of the blanking port 35. A diversion frame 41 is rotatably connected to the lower surface of the annular frame 4. A blanking chute 42 is opened on the lower surface of the diversion frame 41. The blanking chute 42 is used for blanking the mixture.

[0036] Specifically, in the existing blast furnace smelting process, first, the feeding basket moves down along the conveyor belt to the storage bin, first loads a basket of crushed pig iron ore, and then moves along the conveyor belt to the top of the blast furnace, pours the pig iron ore into the material tank at the top of the blast furnace, and the pig iron ore passing through the material tank falls along the inner wall of the blast furnace, and then loads a basket of coke into the material tank of the blast furnace, and repeats this process to smelt molten iron. However, during the feeding process, during the pouring process of the feeding basket, the pig iron ore will directly rub against the inner wall of one side of the blast furnace after passing through the material tank, so that the inner wall of the blast furnace is eroded for a long time, causing greater wear on the inner wall of the blast furnace, which affects the life of the blast furnace.

[0037] Therefore, the present invention solves this problem by setting a certain structure. First, the loading basket pours the loaded pig iron ore and coke into the premixing frame 11, and the coke and pig iron ore are mixed by the premixing component in the premixing frame 11, so that the coke and iron ore are more fully in contact before smelting, which is conducive to a faster reduction reaction in the blast furnace. After the premixing is completed, the mixture is discharged and poured into the conveying frame 1. The mixed material is conveyed to the discharge port 35 on one side of the conveying frame 1 through the conveying component in the conveying frame 1, and falls into the annular frame 4 on the lower surface of the discharge port 35, and falls. After entering the annular frame 4, the guide frame 41 connected to the lower surface of the annular frame 4 is started to rotate on the lower surface of the annular frame 4, and the mixed material is dispersed and discharged through the rotating guide frame 41, so that the mixed pig iron ore and coke can be evenly spread on the bottom of the blast furnace during the discharge process, thereby improving the smelting efficiency of the blast furnace. At the same time, the set guide frame 41 can reduce the impact force of the ore falling during the discharge process, so that the mixed material will no longer only wash the inner wall of one side of the blast furnace, thereby protecting the inner wall of the blast furnace to a certain extent and extending the service life of the blast furnace;

[0038] The problem that pig iron ore and coke stone would wash the inner wall of one side of the blast furnace for a long time, causing wear of the blast furnace, was solved.

[0039] like Figure 4 As shown, in this embodiment, an annular guide groove 44 is formed on the lower surface of the annular frame 4 , and two guide rods 43 are fixedly connected to the upper surface of the guide frame 41 . The guide frame 41 can rotate along the annular guide groove 44 through the guide rods 43 .

[0040] Specifically, when the diversion frame 41 rotates, by activating the annular guide groove on the lower surface of the annular frame 4, which is an annular electric guide rail, the diversion frame 41 then slides along the annular guide groove 44 through the two guide rods 43 fixedly connected to its upper surface, achieving the effect of driving the diversion frame 41 to rotate and discharge materials, so that the diversion frame 41 can evenly discharge the mixed materials onto the lower surface of the blast furnace, and the impact force of the mixed materials on the blast furnace is dispersed to the entire inner wall of the blast furnace, preventing erosion of only one side of the inner wall of the blast furnace and avoiding the problem of excessive wear and damage to the blast furnace.

[0041] As Figure 3 and Figure 4 shown, in the middle of the diversion frame 41 of this embodiment, there is a bending point. The bending point of the diversion frame 41 buffers the mixed materials, and at the same time, the rotating diversion frame 41 disperses and discharges the mixed materials to prevent the mixed materials from only scouring one side of the inner wall of the blast furnace.

[0042] Specifically, by setting an inflection point on the diversion frame 41, when the material falls along the diversion frame 41, it will first hit one side of the diversion frame 41, slowing down its falling impact force, thereby reducing the impact force of the material on the inner wall of the blast furnace and extending the service life of the blast furnace.

[0043] Embodiment 2: As Figures 1 to 8 shown, compared with Embodiment 1, another implementation manner of the present invention is: the premixing component includes a top plate 12 fixedly connected to the upper surface of the premixing frame 11. A positioning frame 217 is fixedly connected inside the premixing frame 11. Two feeding plates 216 are rotatably arranged inside the positioning frame 217. A second groove 218 is opened on one side of the positioning frame 217. A connecting plate 219 is rotatably connected inside the second groove 218. A first motor 2 is fixedly connected to the upper surface of the top plate 12. The output end of the first motor 2 is drivingly connected to a belt 21. One end of the belt 21 away from the first motor 2 is drivingly connected to a reciprocating screw 22. A sliding rod 23 is slidably connected to the circumferential surface of the reciprocating screw 22. A connecting frame 29 is fixedly connected to the surface of the sliding rod 23. Two premixing rakes 215 are fixedly connected to the surface of the connecting frame 29.

[0044] Specifically, by starting the first motor 2 on the top plate 12, the first motor 2 drives the belt 21 connected to its output end to start rotating, thereby driving the reciprocating screw 22 at the other end of the belt 21 to rotate, and then driving the sliding rod 23 slidably connected to the circumferential surface of the reciprocating screw 22. The sliding rod 23 makes a reciprocating linear motion along the reciprocating screw 22, so that the connecting frame 29 fixed on the sliding rod 23 and the two premixing rakes 215 on its surface also perform a reciprocating stirring motion. When the premixing is completed, the two blanking plates 216 in the premixing frame 11 are started. The blanking plates 216 are time-controlled electric control plates, and the premixed material is set with a premixing time. After the two blanking plates 216 are opened at a certain angle, the premixed raw iron ore and coke fall into the transfer frame 1. The raw iron ore that has been premixed enables the coke and iron ore to come into contact more fully before smelting, which helps to more quickly undergo a reduction reaction in the blast furnace, improves production efficiency, and increases the smelting utilization rate of the raw iron ore.

[0045] As Figure 5 shown, in this embodiment, the two premixing rakes 215 are fixed on both sides of the connecting frame 29, and the two premixing rakes 215 are arranged in a cross-reverse manner for better premixing of the material.

[0046] Specifically, the two premixing rakes 215 arranged in a cross-reverse manner make a reciprocating motion driven by the sliding rod 23 along the reciprocating screw 22 through the connecting frame 29. This cross-reverse stirring method can more effectively turn and mix the material, improving the uniformity and efficiency of the premixed material.

[0047] As Figure 6 shown, in this embodiment, a first cavity 24 is opened inside the sliding rod 23. A gear 25 is rotatably connected inside the first cavity 24. The gear 25 meshes with a first rack plate 26, and the gear 25 also meshes with a second rack plate 28. A cleaning plate 211 is fixed on the lower surface of the second rack plate 28. A first groove 210 is opened inside the connecting frame 29. The cleaning plate 211 is retracted in the first groove 210. A positioning plate 27 is fixed on one side of the first rack plate 26. An elastic member is arranged on one side of the sliding rod 23 corresponding to the first rack plate 26, and the elastic member is used to reset the first rack plate 26.

[0048] Specifically, when there is a certain amount of moisture in the premixed raw iron ore and coke, after mixing, the ore powder containing moisture will adhere to the surfaces of the two feeding plates 216, forming wall hanging, and then causing the ore blocks above to get stuck between the two inclined and opened feeding plates 216 during the counter-flushing feeding process. When the specified feeding time ends and the two feeding plates 216 close, the remaining mixed materials will be placed back in the premixing frame 11. At the same time, the feeding basket will re-feed a fixed amount of materials. At this time, the raw iron ore and coke in the premixing frame 11 will increase. When the premixing component is started again and all the materials are pushed onto the two feeding plates 216 by rotating the connecting plate 219, due to the increase in materials, the water level of the materials in the premixing frame 11 will increase. The materials with the increased water level will squeeze the positioning plate 27, raising the height of the positioning plate 27. During the process of raising the positioning plate 27, the first rack plate 26 fixedly connected to one side of it will be driven. The rotation of the first rack plate 26 will drive the gear 25 to rotate, and the rotation of the gear 25 will drive the second rack plate 28 to move downward. The downward movement of the second rack plate 28 will push out the cleaning plate 211, making the cleaning plate 211 abut against the upper surfaces of the two feeding plates 216, thereby scraping the ore powder adhering to the surfaces of the two feeding plates 216, making the two feeding plates 216 smooth again and improving the feeding effect.

[0049] As Figure 6 shown in the figure, the elastic member of this embodiment includes a second cavity 212 opened at the top end of the sliding rod 23. A compression spring 213 is fixedly connected to the top wall of the second cavity 212. The bottom end of the compression spring 213 is fixedly connected to a fixed block 214, and the lower surface of the fixed block 214 abuts against the first rack plate 26.

[0050] Specifically, after the feeding of the twice-overlaid materials is completed, the elastic member in the second cavity 212 of the sliding rod 23 is used to reset it. When the feeding plate 216 after scraping is opened and the materials are completely fed, the elastic member squeezes the positioning plate 27 to reset, thereby driving the cleaning plate 211 back into the first groove 210 of the connecting frame 29, achieving the protection of the cleaning plate 211. The reason for not directly scraping the feeding plate 216 during the premixing of the connecting frame 29 is to prevent possible wear caused by continuous scraping of the feeding. The smooth material on the surface of the feeding plate 216 may be scraped off reciprocally. For the cleaning plate 211, only when the materials are not completely fed due to blockage and the accumulation of the two batches of materials causes the positioning plate 27 to rise, triggering the downward movement of the cleaning plate 211, thereby cleaning the feeding plate 216. This also protects the cleaning plate 211 from reducing the collision and friction with the ore during the premixing process, and improves the service life of the cleaning plate 211.

[0051] As Figure 6 shown in the figure, the cleaning plate 211 of this embodiment is made of rubber material, which can reduce the scraping damage to the surface of the feeding plate 216 during the cleaning process.

[0052] Specifically, by setting the material of the cleaning plate 211 to rubber material, the effect of protecting the blanking plate 216 is achieved, and the scraping effect is improved.

[0053] Embodiment 3: As Figure 8 shown, another implementation manner of the present invention is: The conveying assembly includes a third motor 33 fixedly connected to one side of the conveying frame 1. The output end of the third motor 33 is rotatably connected to two augers 34, and the two augers 34 are used for conveying the premixed mixture.

[0054] Specifically, the third motor 33 drives the two augers 34 to rotate on one side of the conveying frame 1. The spiral blades of the augers 34 push the premixed mixture from one end to the other end, realizing continuous and stable material conveyance. This conveyance method can ensure that the mixture remains uniform during conveyance, avoiding blockage and accumulation.

[0055] As Figure 8 shown, on the side of the conveying frame 1 away from the third motor 33 in this embodiment, a second motor 3 is fixedly connected. The output end of the second motor 3 is rotatably connected to a rotating shaft 31. A plurality of stirring rods 32 are fixedly connected to the circumferential surface of the rotating shaft 31, and the plurality of stirring rods 32 are used to prevent the mixture from accumulating on the augers 34.

[0056] Specifically, the second motor 3 drives the rotating shaft 31 to rotate, driving the stirring rods 32 thereon to stir the mixture near the augers 34, effectively preventing the mixture from accumulating or adhering to the blades of the augers 34, and ensuring that the augers 34 can smoothly convey the mixture from one end of the conveying frame 1 to the other end.

[0057] Working principle: First, the feeding basket pours the loaded raw iron ore and coke into the premixing frame 11. By starting the first motor 2 on the top plate 12, the first motor 2 drives the belt 21 connected to its output end to start rotating, and then drives the reciprocating screw 22 at the other end of the belt 21 to rotate, thereby driving the sliding rod 23 slidably connected to the circumferential surface of the reciprocating screw 22. The sliding rod 23 makes a reciprocating linear motion along the reciprocating screw 22, causing the connecting frame 29 fixedly connected to the sliding rod 23 and the two premixing rakes 215 on its surface to also perform reciprocating stirring motions. When the premixing is completed, two blanking plates 216 in the premixing frame 11 are started. The blanking plates 216 are time-controlled electric control plates, and the premixed material is set with a premixing time. After the two blanking plates 216 are opened at a certain angle, the premixed raw iron ore and coke fall into the conveying frame 1. The premixed raw iron ore enables the coke and iron ore to come into contact more fully before smelting, which helps to more quickly undergo a reduction reaction in the blast furnace, improving the production efficiency and the smelting utilization rate of the raw iron ore;

[0058] After pouring the mixture into the transfer frame 1, the third motor 33 drives two augers 34 to rotate on one side of the transfer frame 1. The spiral blades of the augers 34 push the pre-mixed mixture from one end to the other end, realizing continuous and stable material transfer. This transfer method can ensure that the mixture remains uniform during transfer, avoiding blockage and accumulation. The augers 34 in the transfer frame 1 transfer the mixed material into the discharge opening 35 on one side of the transfer frame 1 and fall into the annular frame 4 on the lower surface of the discharge opening 35. After falling into the annular frame 4, the diversion frame 41 rotatably connected to the lower surface of the annular frame 4 is started. By starting the annular guide groove on the lower surface of the annular frame 4, which is an annular electric guide rail, the diversion frame 41 then slides along the annular guide groove 44 through the two guide rods 43 fixedly connected to its upper surface, achieving the effect of driving the diversion frame 41 to rotate and discharge materials, so that the diversion frame 41 can evenly discharge the mixture onto the lower surface of the blast furnace, and the impact force of the mixture on the blast furnace is dispersed to the inner wall of the entire blast furnace, preventing erosion only on one side inner wall of the blast furnace and avoiding the problem of excessive wear and damage of the blast furnace, thus extending the service life of the blast furnace;

[0059] When there is a certain amount of moisture in the pre-mixed raw iron ore and coke, after mixing, the ore powder containing moisture will adhere to the surfaces of the two discharge plates 216, forming wall hanging, and then causing the ore blocks above to get stuck between the two inclined and opened discharge plates 216 during the counter-flushing discharge process. When the specified discharge time ends and the two discharge plates 216 close, the remaining mixed materials will be placed back in the pre-mixing frame 11. At the same time, the feeding basket will re-feed a fixed amount of materials. At this time, the raw iron ore and coke in the pre-mixing frame 11 will increase. When the pre-mixing component is started again and all the materials are pushed onto the two discharge plates 216 by rotating the connecting plate 219, due to the increase in materials, the water level of the materials in the pre-mixing frame 11 will increase. The materials with the increased water level will squeeze the positioning plate 27 and raise the height of the positioning plate 27. During the process of raising the positioning plate 27, it will drive the first rack plate 26 fixedly connected to one side of it. The rotation of the first rack plate 26 will drive the gear 25 to rotate, and the rotation of the gear 25 will drive the second rack plate 28 to move downward. The downward movement of the second rack plate 28 pushes out the cleaning plate 211, making the cleaning plate 211 abut against the upper surfaces of the two discharge plates 216, thereby scraping the ore powder adhering to the surfaces of the two discharge plates 216, making the two discharge plates 216 smooth again and improving the discharge effect.

[0060] The basic principles, main features and advantages of the present invention have been shown and described above. Those skilled in the art should understand that the present invention is not limited by the above embodiments. What is described in the above embodiments and the specification only illustrates the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention will have various changes and improvements, and all these changes and improvements fall within the scope of the present invention claimed. The scope of the present invention claimed is defined by the appended claims and their equivalents.

Claims

1. A blast furnace silo guide device, comprising a conveying frame (1), a premixing frame (11) being fixedly connected to the upper surface of the conveying frame (1), a feed port (13) being provided on the upper surface of the premixing frame (11), characterized in that: A premixing assembly is arranged inside the conveying frame (1), and the premixing assembly is used to premix coke and pig iron ore. The premixing assembly includes a premixing rake (215) slidably arranged on the top of the premixing frame (11); The conveying frame (1) is provided with a conveying component inside, and the conveying component is used to convey the premixed pig iron ore and coke mixture; A material discharge port (35) is provided on one side of the conveying frame (1), a buffer assembly is provided on the lower surface of the material discharge port (35), the buffer assembly is used to disperse and buffer the mixed material, the buffer assembly comprises an annular frame (4) fixedly connected to the lower surface of the material discharge port (35), a guide frame (41) is rotatably connected to the lower surface of the annular frame (4), a material discharge trough (42) is provided on the lower surface of the guide frame (41), and the material discharge trough (42) is used to discharge the mixed material; The premix assembly comprises a top plate (12) fixedly connected to the upper surface of a premix frame (11), a positioning frame (217) fixedly connected in the premix frame (11), two unloading plates (216) rotatably arranged in the positioning frame (217), a second trough (218) opened on one side of the positioning frame (217), a connecting plate (219) rotatably connected in the second trough (218), a first motor (2) fixedly connected to the upper surface of the top plate (12), a belt (21) drivingly connected to the output end of the first motor (2), a reciprocating screw (22) drivingly connected to one end of the belt (21) away from the first motor (2), a sliding rod (23) slidably connected to the circumferential surface of the reciprocating screw (22), a connecting frame (29) fixedly connected to the surface of the sliding rod (23), two premixing rakes (215) fixedly connected to the surface of the connecting frame (29); The two premixing rakes (215) are fixedly connected to two sides of the connection frame (29), and the two premixing rakes (215) are arranged in a cross-reverse manner to better premix the materials; A first cavity (24) is provided inside the sliding rod (23), a gear (25) is rotatably connected inside the first cavity (24), the gear (25) is meshed with a first rack plate (26), the gear (25) is also meshed with a second rack plate (28), a cleaning plate (211) is fixedly connected to the lower surface of the second rack plate (28), a first groove (210) is provided inside the connecting frame (29), the cleaning plate (211) is retracted in the first groove (210), a positioning plate (27) is fixedly connected to one side of the first rack plate (26), and an elastic member is provided on the side of the sliding rod (23) corresponding to the first rack plate (26), the elastic member is used to reset the first rack plate (26); The elastic member comprises a second cavity (212) opened at the top end of the sliding rod (23); a compression spring (213) is fixedly connected to the top wall of the second cavity (212); a fixing block (214) is fixedly connected to the bottom end of the compression spring (213); and a lower surface of the fixing block (214) is in contact with the first rack plate (26); As the amount of material increases, the level of the material in the premixing frame (11) increases. The increased level of material will squeeze the positioning plate (27), thereby raising the height of the positioning plate (27). In the process of the positioning plate (27) being raised, the first rack plate (26) fixed to one side thereof will be driven to rotate. The rotation of the first rack plate (26) will drive the gear (25) to rotate. The rotation of the gear (25) will drive the second rack plate (28) to move downward. The downward movement of the second rack plate (28) pushes out the cleaning plate (211), so that the cleaning plate (211) abuts against the upper surfaces of the two unloading plates (216), thereby scraping off the ore powder adhered to the surfaces of the two unloading plates (216).

2. A blast furnace bunker guide device according to claim 1, characterized in that: The lower surface of the annular frame (4) is provided with an annular guide groove (44), and the upper surface of the flow guide frame (41) is fixedly connected to two guide rods (43). The flow guide frame (41) can be rotated along the annular guide groove (44) via the guide rods (43).

3. A blast furnace bunker guide device according to claim 2, characterized in that: A bending point is provided in the middle of the guide frame (41), and the mixed material is buffered by the bending point of the guide frame (41). At the same time, the mixed material is dispersed and discharged by the rotating guide frame (41), so as to prevent the mixed material from only flushing one side of the inner wall of the blast furnace.

4. A blast furnace bunker guide device according to claim 1, characterized in that: The cleaning plate (211) is made of rubber, which can reduce scratches on the surface of the blanking plate (216) during the cleaning process.

5. A blast furnace bunker guide device according to claim 1, characterized in that: The conveying assembly comprises a third motor (33) fixedly connected to one side of the conveying frame (1), and an output end of the third motor (33) is rotatably connected to two augers (34), and the two augers (34) are used to convey the premixed mixed material.

6. A blast furnace bunker guide device according to claim 5, characterized in that: A second motor (3) is fixedly connected to a side of the conveying frame (1) away from the third motor (33); an output end of the second motor (3) is rotatably connected to a rotating shaft (31); a plurality of stirring rods (32) are fixedly connected to a circumferential surface of the rotating shaft (31); the plurality of stirring rods (32) are used to prevent the mixed material from piling up on the auger (34).

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