A quantitative feeding device for blast furnace

Abstract

The present invention discloses a blast furnace quantitative feeding device, which specifically relates to the technical field of blast furnace feeding, including a blast furnace pipe, a material pipe and a feeding hopper, wherein the material pipe is fixedly connected to the inner wall of the blast furnace pipe, the feeding hopper is fixedly connected to the top of the material pipe, and two sleeves are fixedly connected to the top of the feeding hopper, and a pre-set quantitative feeding mechanism is provided at the top of the sleeve. The present invention uses a pre-set quantitative feeding mechanism, and a controller sets a pre-set feeding time. The iron ore raw material inside the storage barrel is poured into the quantitative box along the lower discharge pipe. When the iron ore raw material inside the quantitative box is weighed to a specified weight, the electric cylinder is started to drive the baffle to move downward. After the mixed material enters the material pipe, it is accumulated in a circular space surrounded by multiple side plates. Different raw materials are quantitatively proportioned and fed in advance. When feeding is required, different raw materials can be simultaneously fed sideways and bottom-fed, shortening the waiting time for feeding, and greatly improving the efficiency of quantitative feeding of the blast furnace.

Description

Technical Field

[0001] The present invention relates to the technical field of blast furnace charging, and more specifically, to a blast furnace quantitative charging device. Background Art

[0002] The quantitative feeding device of blast furnace plays an important role in the blast furnace smelting process, mainly in the precise control of the raw material input. The quantitative feeding device of blast furnace can ensure that the iron ore and coke raw materials are accurately added to the blast furnace according to the predetermined proportion and rate. This precise control is crucial to the stable operation of the blast furnace and the product quality.

[0003] In the existing public technical literature, the Chinese patent publication number CN216585052U discloses a blast furnace charging device for smelting, which installs an electric telescopic rod in the discharge pipe of the charging tank through a mounting plate, adjusts the interval time between the contraction and extension of the electric telescopic rod, and the lower block and the upper block cooperate with the discharge port to perform timed and quantitative charging to the metallurgical furnace, thereby avoiding safety accidents that are prone to manual charging. However, the blast furnace charging device has the following problems.

[0004] When the charging device is charging the blast furnace for smelting, although a specified amount of raw materials can be added, different raw materials need to be continuously discharged into the blast furnace during the charging process. Some raw materials are light in weight and take a short time to add, while some raw materials are heavy in weight and take a long time to add. When different raw materials are discharged, the continuous charging time is long, and it is difficult to quantitatively proportion different raw materials in advance, and it is difficult to quickly add different raw materials synchronously. The waiting time for adding is long, resulting in a significant decrease in the quantitative charging efficiency of the blast furnace. Therefore, a blast furnace quantitative charging device is needed. Summary of the invention

[0005] In order to overcome the above-mentioned defects of the prior art, the present invention provides a blast furnace quantitative charging device.

[0006] To achieve the above object, the present invention provides the following technical solution: a blast furnace quantitative feeding device, comprising a blast furnace tube, a material tube and a feeding hopper, wherein the material tube is fixedly connected to the inner wall of the blast furnace tube, the feeding hopper is fixedly connected to the top of the material tube, the top of the feeding hopper is fixedly connected to two sleeve plates, and the top of the sleeve plate is provided with a pre-determined quantitative feeding mechanism;

[0007] The pre-determined quantitative feeding mechanism includes a weighing sensor fixedly arranged on the top of the sleeve plate, and the top of the weighing sensor is fixedly connected to a quantitative box, and one side of the quantitative box is slidably connected to a discharge plate; the top of the discharge plate is fixedly connected to an electric cylinder, and the electric cylinder and the quantitative box are fixedly connected, and a lower discharge pipe is installed above the quantitative box, and the bottom end of the lower discharge pipe is slidably connected to a baffle; a pushing electric cylinder is fixedly connected to the outer wall of the lower discharge pipe near the baffle, and the output end of the pushing electric cylinder is fixedly connected to the baffle; a synchronous side discharge feeding assembly is installed on one side of the outer wall of the material pipe; a synchronous bottom discharge feeding assembly is installed on one side of the outer wall of the blast furnace tube.

[0008] Preferably, the two metering boxes are symmetrically arranged about the center point of the charging hopper, and a gap is provided between the lower row pipe and the metering box, and an inclined plate is fixedly connected to one side of the inner wall of each metering box; the top end of the lower row pipe is fixedly connected to a storage barrel, and one side of the lower row pipe is provided with a bracket fixedly connected to the storage barrel, the bracket is fixedly connected to the blast furnace tube, one side of the bracket is fixedly connected to a controller, the two brackets are symmetrically arranged about the charging hopper, and one side of the controller is fixedly connected to a display screen, two sliding rods are provided on both sides of the weighing sensor, the top end of the sliding rod is fixedly connected to the metering box; the sliding rod is slidably connected to the sleeve plate; the bottom end of the blast furnace tube is fixedly connected to a connected blast furnace body.

[0009] According to the technical solution, when charging the blast furnace, the operator pours the iron ore raw materials into the storage barrel and the coke raw materials into another storage barrel. After the prefabrication charging time of the blast furnace body is reached, the electric cylinder is pushed to drive the baffle to move up, and the baffle no longer blocks the lower discharge pipe. The multiple slide bars are pressed down by the gravity of the quantitative box, and the slide bars slide down along the inner wall of the sleeve plate. The weighing sensor weighs the quantitative box. When the iron ore raw materials in the quantitative box are weighed to the specified weight, the controller is used to start the electric cylinder to drive the baffle to move down, and the electric cylinder is started to drive the discharge plate to move up. Under the action of the inclined plate, the iron ore raw materials are tilted and discharged into the charging hopper, and the coke raw materials in the other storage barrel are also weighed and charged into the charging hopper, accumulating in the circular space surrounded by multiple side plates.

[0010] Preferably, the synchronous side discharge feeding assembly comprises a sliding frame fixedly connected to one side of the outer wall of the material pipe; the inner wall of the sliding frame is rotatably connected to a screw, and the top of the inner wall of the sliding frame is fixedly connected to a reduction motor, the reduction motor is used to drive the screw to rotate, and the outer wall of the screw is threadedly connected to a sleeve block; the bottom end of the sleeve block is fixedly connected to a linkage ring, and the linkage ring is slidably connected to the blast furnace tube, and the bottom end of the linkage ring is fixedly connected to a plurality of hinged recesses, and the plurality of hinged recesses are equidistantly arranged in a circular ring; one side of the inner wall of each of the hinged recesses is fixedly connected to a connecting shaft, and the outer wall of the connecting shaft is rotatably connected to a sleeve rod, the inner wall of the sleeve rod is rotatably connected to a hinge shaft near its bottom end, and one end of the hinge shaft is fixedly connected to a concave support block;

[0011] A side row plate is fixedly connected to one side of the concave support block, a sleeve rotating block is fixedly connected to the outer wall of the side row plate near the top thereof, a connecting support shaft is rotatably connected to the inner wall of the sleeve rotating block, a concave block fixedly connected to the material pipe is provided on one side of the sleeve rotating block, and the sleeve rotating block is rotatably connected to the concave block, the sleeve block is slidably connected to the slide frame, and the vertical cross-section of the sleeve block is L-shaped, the hinged concave block and the concave support block are both rotatably connected to the sleeve rod, and a plurality of side row plates are arranged equidistantly in a circular ring.

[0012] According to the technical solution, when charging the blast furnace, when charging the blast furnace body, the reduction motor drives the screw to rotate inside the slide frame, and the screw carries the sleeve block to move upward under the action of the thread transmission force. The articulated concave block drives the connecting shaft to move the sleeve rod upward, the articulated shaft drives the concave support block to rotate upward, and the concave support block carries the side row plate to rotate upward. Multiple side row plates all rotate upward synchronously, and multiple side row plates no longer support the mixed material, and the mixed material can be quickly fed synchronously from multiple directions from the side.

[0013] Preferably, the synchronous bottom row feeding assembly includes a push-down electric cylinder fixedly connected to one side of the outer wall of the blast furnace tube; the output end of the push-down electric cylinder is connected to a push block, and the bottom end of the push block is fixedly connected to two tooth plates, and the opposite sides of the two tooth plates are meshed and transmitted with tooth rings; the inner wall of each tooth ring is fixedly connected to a rotating shaft, and the two rotating shafts are rotatably connected to the blast furnace tube, and one end of each rotating shaft is fixedly connected to a lower row bottom plate, and the two tooth plates are symmetrically arranged about the middle of the push block, and a gap is provided between the two tooth rings; the two lower row bottom plates are hinged.

[0014] According to the technical solution, when charging the blast furnace, the push-down electric cylinder drives the push block to move downward, and the push block carries two tooth plates to move downward synchronously. The two tooth plates drive the two tooth rings to rotate respectively, one tooth ring rotates clockwise, and the other tooth ring rotates counterclockwise, the rotating shaft rotates on the blast furnace tube, the rotating shaft drives the lower bottom plate to rotate clockwise downward, and the other lower bottom plate rotates counterclockwise downward, and the mixed material can be tilted along the two lower bottom plates to be charged.

[0015] Technical effects and advantages of the present invention:

[0016] 1. The present invention pre-sets the quantitative feeding mechanism, and the controller sets the pre-fabricated feeding time. After the pre-fabricated feeding time is reached, the electric cylinder is pushed to drive the baffle to move up, and the iron ore raw materials in the storage barrel are poured into the quantitative box along the lower discharge pipe. The weighing sensor weighs the quantitative box. When the iron ore raw materials in the quantitative box are weighed to the specified weight, the electric cylinder is started to drive the baffle to move down, and the electric cylinder is started to drive the discharge plate to move up. The iron ore raw materials and coke raw materials are also weighed and added to the feeding hopper. After the mixed material enters the material pipe, it is accumulated in the circular space surrounded by multiple side plates. Different raw materials can be quantitatively proportioned and fed in advance. When feeding is needed, different raw materials can be quickly fed simultaneously, the waiting time for feeding is shorter, and the quantitative feeding efficiency of the blast furnace is greatly improved.

[0017] 2. The present invention adopts a synchronous side discharge feeding component, which drives the screw to rotate inside the slide frame through a reduction motor, the sleeve block drives multiple hinged recessed blocks to move upward, the sleeve rod drives the hinge shaft to rotate upward, and the hinge shaft drives the concave support block to rotate upward, and the side discharge plate drives the sleeve rotating block to rotate on the outer wall of the connecting support shaft. The mixed material can be quickly and synchronously fed and discharged from multiple lateral directions, and different raw materials can be quickly fed synchronously, and the quantitative feeding efficiency of the blast furnace is greatly improved.

[0018] 3. The present invention uses a synchronous bottom row feeding assembly. The push block is driven downward by the push electric cylinder. The two tooth plates respectively drive the two gear rings to rotate. One gear ring rotates clockwise, and the other gear ring rotates counterclockwise. The rotating shaft drives the lower row bottom plate to rotate downward clockwise, and the other lower row bottom plate rotates downward counterclockwise. The mixed material can be tilted along the two lower row bottom plates for feeding, and the quantitative feeding efficiency of the blast furnace is greatly improved.

[0019] According to the mutual influence of the above-mentioned multiple effects, firstly, after the mixture enters the inside of the material pipe, it accumulates in the circular space surrounded by multiple side plates waiting for charging, and at the same time, the mixture can be quickly and synchronously charged into the blast furnace body from multiple lateral directions, and at the same time, the mixture can be charged to the bottom along the two lower bottom plates. In summary, different raw materials can be quantitatively proportioned and charged in advance. After the proportioning is completed, different raw materials can be simultaneously charged to the side and the bottom, which shortens the waiting time for charging and greatly improves the quantitative charging efficiency of the blast furnace. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the overall structure of the blast furnace quantitative charging device of the present invention.

[0021] Figure 2 It is a schematic diagram of the local structure of the connection between the controller and the display screen of the present invention.

[0022] Figure 3 It is a schematic diagram of the partial structure of the lower row pipe cutoff of the present invention.

[0023] Figure 4 It is a schematic diagram of the partial structure of the connection between the lower row pipe and the pushing electric cylinder in a top view of the present invention.

[0024] Figure 5 It is a schematic diagram of the local structure of the vertical section of the connection between the blast furnace tube and the material tube of the present invention.

[0025] Figure 6 It is a schematic diagram of the front structure of the synchronous side discharge feeding assembly of the present invention.

[0026] Figure 7 It is a schematic diagram of the local structure of the vertical section of the connection between the linkage ring and the hinged recessed block of the present invention.

[0027] Figure 8 It is a schematic diagram of the local structure of the connection between the concave support block and the hinge shaft of the present invention.

[0028] Fig. 9 It is a schematic diagram of the partial structure of the connection between the concave support block and the side row plate of the present invention.

[0029] Fig.10 It is a schematic diagram of the partial structure of the connection between the blast furnace tube and the push-down electric cylinder of the present invention.

[0030] The accompanying drawings are marked as follows: 1. blast furnace tube; 2. material tube; 3. feeding hopper; 4. sleeve plate; 5. weighing sensor; 6. quantitative box; 7. discharge plate; 8. electric cylinder; 9. lower discharge tube; 10. baffle; 11. push electric cylinder; 12. tilting plate; 13. storage barrel; 14. bracket; 15. controller; 16. slide rod; 17. slide frame; 18. screw rod; 19. reduction motor; 20. sleeve block; 21. linkage ring; 22. hinged concave block; 23. connecting shaft; 24. sleeve rod; 25. display screen; 26. hinged shaft; 27. concave support block; 28. side discharge plate; 29. ​​sleeve rotating block; 30. concave block; 31. connecting support shaft; 32. push-down electric cylinder; 33. push block; 34. tooth plate; 35. gear ring; 36. rotating shaft; 37. lower bottom plate; 38. blast furnace body. DETAILED DESCRIPTION

[0031] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0032] As attached Figure 1-10 A blast furnace quantitative feeding device is shown, which is provided with a pre-determined quantitative feeding mechanism, a synchronous side discharge feeding component, and a synchronous bottom discharge feeding component. The settings of each mechanism and component can carry out quantitative proportioning and feeding of different raw materials in advance. After the pre-proportioning is completed, the side feeding and bottom feeding of different raw materials can be realized synchronously, thereby shortening the waiting time for feeding and greatly improving the quantitative feeding efficiency of the blast furnace. The specific structural settings of each mechanism and component are as follows.

[0033] In this technical solution, as shown in the attached Figure 1-4 As shown, the pre-determined quantitative feeding mechanism includes a weighing sensor 5 fixedly arranged on the top of the sleeve plate 4, and the top of the weighing sensor 5 is fixedly connected to a quantitative box 6, and one side of the quantitative box 6 is slidably connected to a discharge plate 7; the top of the discharge plate 7 is fixedly connected to an electric cylinder 8, and the electric cylinder 8 and the quantitative box 6 are fixedly connected, and a lower discharge pipe 9 is installed above the quantitative box 6, and a baffle 10 is slidably connected to the bottom end of the lower discharge pipe 9; a pushing electric cylinder 11 is fixedly connected to the outer wall of the lower discharge pipe 9 and close to the baffle 10, and the output end of the pushing electric cylinder 11 is fixedly connected to the baffle 10; a synchronous side discharge feeding assembly is installed on one side of the outer wall of the material pipe 2; and a synchronous bottom discharge feeding assembly is installed on one side of the outer wall of the blast furnace tube 1.

[0034] In this technical solution, as shown in the attached Figure 1-4 As shown, one side of the inner wall of each quantitative box 6 is fixedly connected with an inclined plate 12; the top of the lower discharge pipe 9 is fixedly connected with a storage barrel 13, and one side of the lower discharge pipe 9 is provided with a bracket 14 fixedly connected to the storage barrel 13, and the bracket 14 is fixedly connected to the blast furnace pipe 1. So that the two brackets 14 support the two storage barrels 13 respectively, and the iron ore raw materials are tilted and discharged into the feeding hopper 3 under the action of the inclined plate 12. A controller 15 is fixedly connected to one side of the bracket 14, and a display screen 25 is fixedly connected to one side of the controller 15. The two brackets 14 are symmetrically arranged about the feeding hopper 3. So that the controller 15 can set the prefabrication time, the prefabrication time setting can be realized, so that the prefabrication feeding can be realized after the prefabrication time is reached, and the display screen 25 can display the prefabrication time.

[0035] Two slide bars 16 are provided on both sides of the weighing sensor 5, and the top of the slide bar 16 is fixedly connected to the quantitative box 6; the slide bar 16 is slidably connected to the sleeve plate 4, and the bottom end of the blast furnace tube 1 is fixedly connected to the connected blast furnace body 38. In order to facilitate the gravity of the quantitative box 6 to press down multiple slide bars 16, the slide bars 16 slide down along the inner wall of the sleeve plate 4, and the weighing sensor 5 can stably realize the weighing operation of the quantitative box 6.

[0036] In this technical solution, as shown in the attached Figure 5-9 As shown, the synchronous side discharge feeding assembly includes a slide frame 17 fixedly connected to one side of the outer wall of the material pipe 2; the inner wall of the slide frame 17 is rotatably connected to a screw rod 18, and the top of the inner wall of the slide frame 17 is fixedly connected to a reduction motor 19, the reduction motor 19 is used to drive the screw rod 18 to rotate, and the outer wall of the screw rod 18 is threadedly connected to a sleeve block 20; the bottom end of the sleeve block 20 is fixedly connected to a linkage ring 21, and the linkage ring 21 is slidably connected to the blast furnace tube 1, and the bottom end of the linkage ring 21 is fixedly connected to a plurality of hinged recesses 22, and the plurality of hinged recesses 22 are equidistantly distributed in a circular ring; a connecting shaft 23 is fixedly connected to one side of the inner wall of each hinged recess 22, and a sleeve rod 24 is rotatably connected to the outer wall of the connecting shaft 23, and an articulated shaft 26 is rotatably connected to the inner wall of the sleeve rod 24 near its bottom end, and a concave support block 27 is fixedly connected to one end of the articulated shaft 26.

[0037] A side row plate 28 is fixedly connected to one side of the concave support block 27, a sleeve rotating block 29 is fixedly connected to the outer wall of the side row plate 28 and near its top, a connecting support shaft 31 is rotatably connected to the inner wall of the sleeve rotating block 29, a concave block 30 fixedly connected to the material pipe 2 is provided on one side of the sleeve rotating block 29, and the sleeve rotating block 29 is rotatably connected to the concave block 30. The sleeve block 20 is slidably connected to the slide frame 17, and the vertical cross-section of the sleeve block 20 is L-shaped. The hinged concave block 22 and the concave support block 27 are both rotatably connected to the sleeve rod 24, and multiple side row plates 28 are arranged in a circular ring with equal spacing.

[0038] In this technical solution, as shown in the attached Figure 9-10 As shown, the synchronous bottom row feeding assembly includes a push-down electric cylinder 32 fixedly connected to one side of the outer wall of the blast furnace tube 1; the output end of the push-down electric cylinder 32 is connected to a push block 33, and the bottom end of the push block 33 is fixedly connected to two tooth plates 34, and the opposite sides of the two tooth plates 34 are meshed and transmitted with tooth rings 35; the inner wall of each tooth ring 35 is fixedly connected to a rotating shaft 36, and the two rotating shafts 36 are rotatably connected to the blast furnace tube 1, and one end of each rotating shaft 36 is fixedly connected to a lower row bottom plate 37, and the two tooth plates 34 are symmetrically arranged about the middle part of the push block 33, and a gap is provided between the two tooth rings 35; the two lower row bottom plates 37 are hinged.

[0039] The method of using the blast furnace quantitative charging device in this embodiment is as follows:

[0040] First, when the present invention pre-measures the material, the operator pours the iron ore raw material into the storage barrel 13, pours the coke raw material into another storage barrel 13, and supports the two brackets 14 through the feeding hopper 3. The two brackets 14 support the two storage barrels 13 respectively, and the controller 15 sets the prefabrication time. When the prefabrication and feeding time of the blast furnace body 38 is reached, the controller 15 starts the push cylinder 11, and the push cylinder 11 drives the baffle 10 to move up, and the baffle 10 no longer blocks the lower discharge pipe 9, so that the iron ore raw material inside the storage barrel 13 is poured into the quantitative box 6 along the lower discharge pipe 9. The quantitative box 6 presses down a plurality of slide bars 16 by gravity, and the slide bars 16 slide down along the inner wall of the sleeve plate 4. The weighing sensor 5 weighs the quantitative box 6. When the iron ore raw material inside the quantitative box 6 is weighed to the specified weight.

[0041] The controller 15 starts the electric cylinder 11 to drive the baffle 10 to move downward, and the baffle 10 blocks the bottom of the lower discharge pipe 9. The electric cylinder 8 is started to drive the discharge plate 7 to move upward, and the iron ore raw materials are tilted and discharged into the charging hopper 3 under the action of the inclined plate 12, and the coke raw materials in another storage barrel 13 are also weighed and added to the charging hopper 3, forming a mixture inside the charging hopper 3. After the mixture enters the material pipe 2, it accumulates in the annular space surrounded by multiple side discharge plates 28. At the same time, the two lower bottom plates 37 can realize the bottom support of the mixture, waiting for the blast furnace body 38 to be charged.

[0042] Secondly, when the synchronous side discharge charging of the present invention is performed, when the blast furnace body 38 needs to be charged, the reduction motor 19 can be started through the controller 15, and the reduction motor 19 drives the screw 18 to rotate inside the slide frame 17, and the screw 18 carries the sleeve block 20 to move upward under the action of the thread transmission force. The sleeve block 20 drives a plurality of hinged recessed blocks 22 to move upward, and the hinged recessed blocks 22 drive the connecting shaft 23 to move the sleeve rod 24 upward, and the sleeve rod 24 drives the hinged shaft 26 to rotate upward, and the hinged shaft 26 drives the concave support block 27 to rotate upward, and the concave support block 27 carries the side plate 28 to rotate upward. The side row plates 28 drive the sleeve rotating block 29 to rotate on the outer wall of the connecting support shaft 31, and at the same time the concave block 30 supports the connecting support shaft 31, so that the sleeve rotating block 29 can rotate upward, and the multiple side row plates 28 can all rotate upward synchronously. The multiple side row plates 28 no longer support the mixture, and the mixture can be quickly and synchronously added from the side in multiple directions, and the side discharge realizes the downward discharge of the mixture to complete the feeding operation.

[0043] At the same time, when the present invention is synchronously feeding the bottom row, the controller 15 starts the push-down electric cylinder 32, and the push-down electric cylinder 32 drives the push block 33 to move downward, and the push block 33 carries two tooth plates 34 to move downward synchronously. The two tooth plates 34 respectively drive the two gear rings 35 to rotate, one gear ring 35 rotates clockwise, and the other gear ring 35 rotates counterclockwise, the gear ring 35 drives the rotating shaft 36 to rotate, the rotating shaft 36 rotates on the blast furnace tube 1, and the rotating shaft 36 drives the bottom plate 37 of the lower row to rotate clockwise downward, and the other bottom plate 37 of the lower row rotates counterclockwise downward, and the mixed material can be tilted along the two bottom plates 37 of the lower row to feed the lower row.

[0044] Finally, during the smelting process of the present invention, the mixed material can quickly enter the blast furnace body 38 . After entering, the feed port of the blast furnace body 38 is closed, and the mixed material can be smelted through the blast furnace body 38 .

[0045] The contents not described in detail in the specification belong to the prior art known to those skilled in the art, and the model parameters of each electrical appliance are not specifically limited, and conventional equipment can be used. In this technical solution, the electrical control components not mentioned are not shown in the figure because they belong to the prior art and will not be described here.

[0046] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A blast furnace quantitative feeding device, comprising a blast furnace tube (1), a material tube (2) and a feeding hopper (3), wherein the material tube (2) is fixedly connected to the inner wall of the blast furnace tube (1), the feeding hopper (3) is fixedly connected to the top of the material tube (2), and the top of the feeding hopper (3) is fixedly connected to two sleeve plates (4), characterized in that: A pre-determined metered feeding mechanism is provided at the top of the sleeve plate (4); The pre-determined metered feeding mechanism comprises a weighing sensor (5) fixedly arranged on the top of the sleeve plate (4), and a metering box (6) is fixedly connected to the top of the weighing sensor (5), and a discharge plate (7) is slidably connected to one side of the metering box (6); The top end of the discharge plate (7) is fixedly connected to an electric cylinder (8), and the electric cylinder (8) is fixedly connected to the quantitative box (6), and a lower discharge pipe (9) is installed above the quantitative box (6), and a baffle (10) is slidably connected to the bottom end of the lower discharge pipe (9); A pushing electric cylinder (11) is fixedly connected to the outer wall of the lower row pipe (9) at a position close to the baffle (10), and an output end of the pushing electric cylinder (11) is fixedly connected to the baffle (10); A synchronous side discharge feeding assembly is installed on one side of the outer wall of the material pipe (2), and the synchronous side discharge feeding assembly comprises a sliding frame (17) fixedly connected to one side of the outer wall of the material pipe (2); The inner wall of the slide frame (17) is rotatably connected to a screw rod (18), and the top end of the inner wall of the slide frame (17) is fixedly connected to a reduction motor (19), the reduction motor (19) is used to drive the screw rod (18) to rotate, and the outer wall of the screw rod (18) is threadedly connected to a socket block (20); A linkage ring (21) is fixedly connected to the bottom end of the sleeve block (20), and the linkage ring (21) is slidably connected to the blast furnace tube (1), and a plurality of hinged recessed blocks (22) are fixedly connected to the bottom end of the linkage ring (21), and the plurality of hinged recessed blocks (22) are arranged in a circular ring at equal intervals; A connecting shaft (23) is fixedly connected to one side of the inner wall of each hinged recessed block (22), and a sleeve rod (24) is rotatably connected to the outer wall of the connecting shaft (23), a hinge shaft (26) is rotatably connected to the inner wall of the sleeve rod (24) near its bottom end, and one end of the hinge shaft (26) is fixedly connected to a concave support block (27); A side row plate (28) is fixedly connected to one side of the concave support block (27); a sleeve rotating block (29) is fixedly connected to the outer wall of the side row plate (28) near the top thereof; a connecting support shaft (31) is rotatably connected to the inner wall of the sleeve rotating block (29); a concave block (30) fixedly connected to the material pipe (2) is provided on one side of the sleeve rotating block (29); and the sleeve rotating block (29) and the concave block (30) are rotatably connected; A synchronous bottom row charging assembly is installed on one side of the outer wall of the blast furnace tube (1), and the synchronous bottom row charging assembly comprises a push-down electric cylinder (32) fixedly connected to one side of the outer wall of the blast furnace tube (1); The output end of the push-down electric cylinder (32) is connected to a push block (33), and the bottom end of the push block (33) is fixedly connected to two tooth plates (34), and opposite sides of the two tooth plates (34) are meshed with a tooth ring (35); The inner wall of each gear ring (35) is fixedly connected to a rotating shaft (36), the two rotating shafts (36) are rotatably connected to the blast furnace tube (1), and one end of each rotating shaft (36) is fixedly connected to a lower bottom plate (37).

2. A blast furnace quantitative feeding device according to claim 1, characterized in that: The two quantitative boxes (6) are symmetrically arranged about the center point of the feeding hopper (3), and a gap is provided between the lower row pipe (9) and the quantitative box (6).

3. A blast furnace quantitative feeding device according to claim 1, characterized in that: An inclined plate (12) is fixedly connected to one side of the inner wall of each quantitative box (6); The top end of the lower row pipe (9) is fixedly connected to a material storage barrel (13), and a bracket (14) fixedly connected to the material storage barrel (13) is provided on one side of the lower row pipe (9), and the bracket (14) is fixedly connected to the blast furnace pipe (1).

4. A blast furnace quantitative feeding device according to claim 3, characterized in that: A controller (15) is fixedly connected to one side of the bracket (14), the two brackets (14) are symmetrically arranged with respect to the feeding hopper (3), and a display screen (25) is fixedly connected to one side of the controller (15).

5. A blast furnace quantitative feeding device according to claim 1, characterized in that: Two sliding rods (16) are provided on both sides of the weighing sensor (5), and the top ends of the sliding rods (16) are fixedly connected to the quantitative box (6); The sliding rod (16) is slidably connected to the sleeve plate (4); The bottom end of the blast furnace tube (1) is fixedly connected to a blast furnace body (38) that is in communication with the blast furnace.

6. A blast furnace quantitative feeding device according to claim 1, characterized in that: The sleeve block (20) is slidably connected to the sliding frame (17), and the vertical cross-section of the sleeve block (20) is L-shaped.

7. A blast furnace quantitative feeding device according to claim 1, characterized in that: The hinged concave block (22) and the concave support block (27) are both rotatably connected to the sleeve rod (24), and a plurality of side row plates (28) are arranged in a circular ring at equal intervals.

8. A blast furnace quantitative feeding device according to claim 1, characterized in that: The two tooth plates (34) are symmetrically arranged about the middle of the push block (33), and a gap is provided between the two tooth rings (35); The two lower row bottom plates (37) are hingedly connected.

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