Hollow covering agent production discharging device

Abstract

The utility model belongs to the technical field of hollow covering agent preparation, and particularly relates to a hollow covering agent production discharging device which is arranged on a furnace nozzle of an electric arc furnace, a flow guide channel is formed in the furnace nozzle, a sealing plate is arranged above the furnace nozzle, a baffle is arranged at the front end of the sealing plate and matched with the flow guide channel, a U-shaped block is arranged at the top of the furnace nozzle, and connecting rods are fixedly arranged on the two sides of the upper end of the baffle. The top of the furnace nozzle is rotationally connected with two screws, and the screws are in threaded connection with the corresponding U-shaped blocks; a U-shaped groove is formed in the front end of the furnace mouth, a discharging groove is formed in the U-shaped groove, one end of the discharging groove extends out of the U-shaped groove, the discharging groove is hinged to the furnace mouth, an air cylinder is hinged to the lower end of the end, extending out of the U-shaped groove, of the discharging groove, and the other end of the air cylinder is hinged to the bottom of the U-shaped groove. According to the hollow covering agent forming device, the flow of flowing-out melt liquid can be adjusted through the sealing plate and the baffle, meanwhile, the flowing-out angle of the melt liquid is adjusted through the discharging groove, and the air cutting granulation effect during hollow covering agent forming is effectively improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of hollow covering agent preparation, and specifically relates to a hollow covering agent production and discharging device. Background Art

[0002] During the preparation of the hollow covering agent, the raw materials configured according to the ratio are added into the electric arc furnace, and the catalyst is added to heat and melt. Then the molten liquid flowing out of the furnace nozzle is blown into a spherical shape and falls down under the action of the high-pressure gas blown out by the blowing nozzle. The finished hollow covering agent is obtained by cooling and screening. The blowing nozzle must be installed to ensure that it is located 10-30 cm below the furnace nozzle, and the angle between the blowing nozzle and the furnace nozzle is 10-75°.

[0003] However, when the molten liquid of the existing electric arc furnace flows out of the furnace nozzle, its flow rate and outflow angle cannot be controlled, resulting in insufficient contact between the molten liquid and the high-pressure gas due to large or small flow rates. The fixed position of the blowing nozzle is not convenient to adjust, so there is a certain amount of waste in the process of blowing the molten liquid into a ball shape, which reduces the air cutting granulation effect when the hollow covering agent is formed. Summary of the invention

[0004] The utility model aims to solve the problem that the outflow flow rate and angle of the molten liquid in the existing electric arc furnace cannot be adjusted when it flows out, resulting in insufficient or misaligned contact between the molten liquid and the high-pressure gas blown out by the blowing nozzle, thereby reducing the yield of the hollow covering agent. The utility model provides a hollow covering agent production and discharging device, which can adjust the outflowing molten liquid flow rate through a sealing plate and a baffle, and adjust the outflow angle of the molten liquid through a discharging trough, thereby effectively improving the air cutting granulation effect during the molding of the hollow covering agent.

[0005] In order to achieve the above purpose, the technical solution of the utility model is:

[0006] A hollow covering agent production and discharging device is arranged on the furnace nozzle of an electric arc furnace, wherein a guide channel is opened on the furnace nozzle, a sealing plate is fixedly arranged above the rear end of the furnace nozzle, a baffle is fitted on the front end of the sealing plate, the lower end of the baffle matches the guide channel, U-shaped blocks are correspondingly arranged on the top of the furnace nozzle on both sides of the guide channel, connecting rods matching the inner sides of the U-shaped blocks are fixedly arranged on both sides of the upper end of the baffle, the top of the furnace nozzle is rotatably connected to two screws which respectively penetrate the corresponding U-shaped blocks upwards, each screw is threadedly connected to the corresponding U-shaped block, and the two screws are respectively located on the side away from the two connecting rods, and the baffle is adjusted to rise and fall by rotating the screw, and when the molten liquid flows out, the baffle is pushed to rotate, thereby realizing the adjustment of the outflow flow of the molten liquid.

[0007] A U-shaped groove is provided at the front end of the furnace nozzle, a U-shaped discharge groove is arranged in the U-shaped groove, one end of the discharge groove extends out of the U-shaped groove, and the other end is located in the U-shaped groove, the discharge groove is hinged to the furnace nozzle, and a cylinder is hinged at the lower end of the end of the discharge groove extending out of the U-shaped groove, and the other end of the cylinder is hinged to the bottom of the U-shaped groove, and the discharge groove is driven to rotate by the cylinder to realize the angle adjustment of the molten liquid when it flows out.

[0008] Preferably, there is a gap between the discharge chute and the side wall of the U-shaped chute to ensure smooth rotation of the discharge chute.

[0009] Preferably, a hinge rod passes through the lower end of the discharge chute, and both ends of the hinge rod are rotatably connected to the inner wall of the U-shaped chute, and the hinge connection between the discharge chute and the furnace nozzle is achieved through the hinge rod.

[0010] Preferably, there is a gap between the rear side surface of the discharge chute and the inner side surface of the U-shaped chute to ensure smooth rotation of the discharge chute.

[0011] Preferably, a handle is fixedly provided on the upper end of each screw rod to facilitate rotation and adjustment of the screw rod.

[0012] Through the above technical solution, the beneficial effects of the utility model are:

[0013] 1. The utility model seals the guide channel by a sealing plate and blocks the outflow of the molten liquid by a baffle to avoid excessive flow.

[0014] 2. The utility model realizes the rotational installation of the baffle by cooperating with the connecting rod and the U-shaped block. When the molten liquid flows out through the guide channel, the baffle is pushed open, thereby preventing the baffle from blocking the molten liquid too much.

[0015] 3. The utility model rotates the screw to make the U-shaped block rise or fall, thereby adjusting the height of a pair of baffles, and further ensuring the adjustment of the outflow flow of the molten liquid.

[0016] 4. The utility model drives the discharge trough to rotate around the hinge rod through the cylinder, thereby realizing the angle adjustment when the molten liquid in the flow guide falls into the discharge trough and flows out. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 The structure of the utility model is shown in FIG. Figure 1 .

[0018] Figure 2 The structure of the utility model is shown in FIG. Figure 2 .

[0019] The numbers in the accompanying drawings are: 1 is a furnace nozzle, 2 is a flow guide channel, 3 is a sealing plate, 4 is a baffle, 5 is a U-shaped block, 6 is a connecting rod, 7 is a screw rod, 8 is a U-shaped groove, 9 is a discharge chute, 10 is a cylinder, 11 is a hinged rod, and 12 is a handle. DETAILED DESCRIPTION

[0020] The utility model is further described below in conjunction with the accompanying drawings and specific embodiments:

[0021] like Figure 1-2 As shown, the present embodiment provides a hollow covering agent production and discharging device, which is arranged on the furnace nozzle 1 of the electric arc furnace, and the furnace nozzle 1 is provided with a guide channel 2. The molten liquid after the hollow covering agent raw material is melted flows out from the guide channel 2 of the furnace nozzle 1. A sealing plate 3 is fixedly arranged above the rear end of the furnace nozzle 1, and the sealing plate 3 is used to seal the non-part of the guide channel 2 close to the electric arc furnace. A baffle 4 is fitted at the front end of the sealing plate 3, and the lower end of the baffle 4 matches the guide channel 2. The baffle 4 is used to block the molten liquid flowing out of the guide channel 2 to a certain extent, and U-shaped blocks 5 are correspondingly arranged on the top of the furnace nozzle 1 on both sides of the guide channel 2, and connecting plates matching the inner sides of the U-shaped blocks 5 are fixedly arranged on both sides of the upper end of the baffle 4. Rod 6, when the molten liquid flows out of the guide channel 2, it pushes the lower end of the baffle 4 and the connecting rod 6 to rotate around the U-shaped block 5, thereby avoiding excessive blocking of the molten liquid, which causes the molten liquid to leak out at a high level. The top of the furnace nozzle 1 is rotatably connected to two screws 7 that respectively penetrate the corresponding U-shaped blocks 5 upward, each screw 7 is threadedly connected to the corresponding U-shaped block 5, and the two screws 7 are respectively located on the side away from the two connecting rods 6. A handle 12 is fixedly provided on the upper end of each of the screws 7. The screw 7 is rotated by the handle 12, and the U-shaped block 5 threadedly connected to the corresponding screw 7 moves up and down, thereby driving the connecting rod 6 and the baffle 4 to move up and down, further ensuring the adjustment of the blocking degree of the molten liquid flow in the guide channel 2.

[0022] A U-shaped groove 8 is provided at the front end of the furnace nozzle 1, and a U-shaped discharge groove 9 is provided in the U-shaped groove 8. One end of the discharge groove 9 extends out of the U-shaped groove 8, and the other end is located in the U-shaped groove 8. There is a gap between the discharge groove 9 and the side wall of the U-shaped groove 8, and there is a gap between the rear side of the discharge groove 9 and the inner side of the U-shaped groove 8, thereby effectively ensuring the smooth rotation of the discharge groove 9 in the U-shaped groove 8. The discharge groove 9 is hinged to the furnace nozzle 1, and a hinge rod 11 is passed through the lower end of the discharge groove 9. The two ends of the hinged rod 11 are rotatably connected to the inner wall of the U-shaped groove 8, and the discharge chute 9 can rotate around the hinged rod 11 in the U-shaped groove 8. The lower end of the end of the discharge chute 9 extending out of the U-shaped groove 8 is hinged with a cylinder 10, and the other end of the cylinder 10 is hinged to the bottom of the U-shaped groove 8. The discharge chute 9 is driven by the cylinder 10 to rotate around the hinged rod 11 in the U-shaped groove 8, and then the height of the discharge port of the discharge chute 9 away from the furnace nozzle 1 is adjusted to achieve the adjustment of the outflow angle of the outflowing molten liquid.

[0023] When in use, the screw rod 7 is rotated by the handle 12, and the U-shaped block 5 threadedly connected to the corresponding screw rod 7 moves up and down, thereby driving the connecting rod 6 and the baffle 4 to move up and down, so as to adjust the degree of blocking of the molten liquid flow in the guide channel 2. At the same time, when the molten liquid flows out of the guide channel 2, the lower end of the baffle 4 and the connecting rod 6 are pushed to rotate around the U-shaped block 5, thereby avoiding excessive blocking of the molten liquid, resulting in leakage of the molten liquid at a high liquid level.

[0024] The discharge chute 9 is driven by the cylinder 10 to rotate around the hinge rod 11 in the U-shaped groove 8, thereby adjusting the height of the discharge port of the discharge chute 9 away from the furnace nozzle 1, thereby adjusting the outflow angle of the outflowing molten liquid.

[0025] By adjusting the flow rate and outflow angle of the molten liquid as described above, the molten liquid is effectively contacted by the high-pressure gas blown out by the blowing nozzle below the furnace nozzle 1 and air cutting granulation is achieved to produce more hollow covering agents and ensure full utilization of the molten liquid.

[0026] The embodiments described above are only preferred embodiments of the present invention and are not intended to limit the scope of implementation of the present invention. Therefore, any equivalent changes or modifications made based on the structures, features and principles described in the patent scope of the present invention should be included in the patent application scope of the present invention.

Claims

1. A hollow covering agent production and discharging device, arranged on a furnace nozzle (1) of an electric arc furnace, wherein a flow guide channel (2) is provided on the furnace nozzle (1), characterized in that: A sealing plate (3) is fixedly arranged above the rear end of the furnace nozzle (1), a baffle (4) is fitted on the front end of the sealing plate (3), the lower end of the baffle (4) matches the flow guide (2), U-shaped blocks (5) are correspondingly arranged on the top of the furnace nozzle (1) on both sides of the flow guide (2), connecting rods (6) matching the inner sides of the U-shaped blocks (5) are fixedly arranged on both sides of the upper end of the baffle (4), and the top of the furnace nozzle (1) is rotatably connected to two screw rods (7) that respectively penetrate upwards through the corresponding U-shaped blocks (5), each screw rod (7) is threadedly connected to the corresponding U-shaped block (5), and the two screw rods (7) are respectively located on the side away from the two connecting rods (6); A U-shaped groove (8) is provided at the front end of the furnace nozzle (1), a U-shaped discharge groove (9) is arranged in the U-shaped groove (8), one end of the discharge groove (9) extends out of the U-shaped groove (8), and the other end is located in the U-shaped groove (8), the discharge groove (9) is hinged to the furnace nozzle (1), the lower end of the end of the discharge groove (9) extending out of the U-shaped groove (8) is hinged to a cylinder (10), and the other end of the cylinder (10) is hinged to the bottom of the U-shaped groove (8).

2. A hollow covering agent production and discharging device according to claim 1, characterized in that: There is a gap between the discharge trough (9) and the side wall of the U-shaped trough (8).

3. A hollow covering agent production and discharging device according to claim 1, characterized in that: A hinged rod (11) passes through the lower end of the discharge chute (9), and both ends of the hinged rod (11) are rotatably connected to the inner wall of the U-shaped chute (8).

4. A hollow covering agent production and discharging device according to claim 2, characterized in that: There is a gap between the rear side surface of the discharge trough (9) and the inner side surface of the U-shaped trough (8).

5. The hollow covering agent production and discharging device according to claim 1, characterized in that: A handle (12) is fixedly provided on the upper end of each screw rod (7).

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