Slag charge feeding amount adjusting device for low-phosphorus smelting

Abstract

The utility model relates to the technical field of iron and steel smelting, and discloses a slag charge feed quantity adjusting device for low-phosphorus smelting, which comprises a screening box, a motor is mounted on the outer side of the screening box, a rotating rod is fixedly connected to the output end of the motor, a cam is fixedly connected to the outer side of the rotating rod, and a screen is slidably connected to the inner side of the screening box. And two sliding blocks are fixedly connected to the two sides of the outer portion of the screening net correspondingly, two wall grooves are formed in the two sides of the inner wall of the screening box correspondingly, guide rods are fixedly connected into the wall grooves, and the guide rods are sleeved with first springs. According to the slag screening device, after slag is added into the screening box, the motor is started to drive the rotating rod to rotate, so that the cam rotates to eject the screen and then rapidly resets under the elastic force action of the first spring, the screen swings up and down, the slag can be screened in advance, and the screening efficiency is improved. And by using the slag charge with uniform and small particles, the desulfurization effect can be controlled more accurately during smelting.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of steel smelting, especially relates to a slag quantity adjusting device for low phosphorus smelting. BACKGROUND

[0002] Low phosphorus smelting is a process technology in the steel smelting process, and its main goal is to control the content of phosphorus in molten steel at a low level. Phosphorus is generally considered a harmful element in steel, and excessive phosphorus content can reduce the toughness, plasticity and weldability of steel. Slag usually refers to various slagging materials added during the smelting process, such as lime, dolomite, fluorite, etc. Slag can form suitable slag, promote the transfer of phosphorus elements from molten steel to slag, and lime can provide an alkaline environment to facilitate the oxidation of phosphorus, allowing it to separate from the molten steel and enter the slag. Slag helps to control the temperature and pH in the furnace. By adjusting the type and quantity of slag, the appropriate smelting temperature and pH conditions can be maintained to create a good chemical reaction environment for low phosphorus smelting.

[0003] In the prior art, slag is directly added during steel smelting. The size of the slag particles can cause difficulty in controlling the desulfurization effect during the smelting process. Traditional manual control of the amount of slag not only has low efficiency, but also cannot guarantee the accuracy and stability of the amount. Therefore, the technical field proposes a slag quantity adjusting device for low phosphorus smelting to solve the above problems. SUMMARY

[0004] To make up for the above shortcomings, the utility model provides a slag quantity adjusting device for low phosphorus smelting, aiming to improve the problem that in the prior art, the size of the slag particles can cause difficulty in controlling the desulfurization effect during the smelting process, and traditional manual control of the amount of slag not only has low efficiency, but also cannot guarantee the accuracy and stability of the amount.

[0005] To achieve the above purpose, the utility model provides the following technical scheme: a slag quantity adjusting device for low phosphorus smelting, comprising a screening box, a motor is installed on the outside of the screening box, an output end of the motor is fixedly connected with a rotating rod, the outside of the rotating rod is fixedly connected with a cam, the inside of the screening box is slidably connected with a screen, both sides of the outside of the screen are fixedly connected with two sliding blocks, two wall grooves are formed on both sides of the inner wall of the screening box, a guide rod is fixedly connected in the wall groove, a spring one is sleeved on the outside of the guide rod, a guide table is fixedly connected in the inside of the screening box, a shunt pool is fixedly connected on the outside of the screening box, a discharge port is formed on both sides of the inner wall of the screening box, an amount adjusting assembly is arranged on the outside of the shunt pool, and the amount adjusting assembly is used to control the amount of feed when the slag enters the smelting equipment.

[0006] Further, the quantity adjusting assembly comprises a temporary storage pool, one side of the temporary storage pool is fixedly connected to the front side of the diversion pool, the inner side of the temporary storage pool is slidably connected with three partitions, the other side of the temporary storage pool is fixedly connected with a fixed block, the inner part of the fixed block is slidably connected with a sliding rod, and the outer part of the sliding rod is sleeved with a spring two.

[0007] Further, one side of the temporary storage pool is provided with two electric push rods, and the top of the partition is fixedly connected with a movable block.

[0008] Further, one end of the electric push rod is fixedly connected to the outer side of the movable block.

[0009] Further, one end of the sliding rod is fixedly connected to the outer side of the middle movable block.

[0010] Further, one end of the spring two is fixedly connected to the outer side of the movable block, and the other end of the spring two is fixedly connected to the outer side of the fixed block.

[0011] Further, the outer side of the cam is attached to the bottom of the screen, and one end of the rotating rod is rotatably connected to the inner wall of the screening box.

[0012] Further, the inner side of the sliding block is slidably connected to the outer side of the guide rod, one end of the spring one is fixedly connected to the top of the sliding block, and the other end of the spring one is fixedly connected to the inner side of the wall groove.

[0013] The utility model has the advantages of the following:

[0014] 1、 in the utility model, the slag is added to the inside of the screening box from the through port at the top of the screening box, the motor is started to drive the rotating rod to rotate, the cam is rotated, the screen is lifted and then is quickly reset under the elastic force of the spring one, the screen is shaken up and down, the slag with small particles penetrates the screen hole of the screen and falls on the inclined surface of the guide table, is discharged from the left discharge port, the slag with large particles slides from the top of the screen and is discharged from the right discharge port, the slag is screened in advance, and the slag with uniform and small particles can make the control of the desulfurization effect more accurate during smelting.

[0015] 2、 in the utility model, the rear electric push rod is started to drive the rear movable block to move, the rear partition moves to the left, the slag flows to the opening, the middle side is located at the middle position of the middle movable block, the middle movable block is driven to move after the rear movable block moves a distance, the rear partition is pulled back by the rear electric push rod after the two areas surrounded by the three partitions are filled with the slag, the middle partition is reset under the elastic force of the spring two, then the front electric push rod is started to open the front partition, and the middle partition is opened, so that two or one partition of the slag can be stably added at one time, and the utility model is more stable and convenient than manual control. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 A perspective view of a slag quantity regulating device for low-phosphorus smelting is proposed in the present application;

[0017] Figure 2 A perspective view of a slag quantity regulating device for low-phosphorus smelting is proposed in the present application;

[0018] Figure 3 A perspective view of a slag quantity regulating device for low-phosphorus smelting is proposed in the present application;

[0019] Figure 4 A perspective view of a slag quantity regulating device for low-phosphorus smelting is proposed in the present application; Figure 2 An enlarged view of A in FIG. 1.

[0020] LEGEND:

[0021] 1, screening box; 2, motor; 3, rotating rod; 4, cam; 5, screen; 6, sliding block; 7, wall groove; 8, guide rod; 9, spring I; 10, guide table; 11, shunt pool; 12, discharge port; 13, temporary storage pool; 14, electric push rod; 15, partition; 16, movable block; 17, fixed block; 18, sliding rod; 19, spring II. DETAILED DESCRIPTION

[0022] The technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all the other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0023] Referring to Figures 1-3The utility model provides a kind of low phosphorus smelting with slag material quantity regulating device, including screening box 1, motor 2 is installed to the outside of screening box 1, the output end of motor 2 is fixedly connected with rotating rod 3, the outside fixed connection of rotating rod 3 has cam 4, the inside sliding connection of screening box 1 has screen 5, two sliding blocks 6 are fixedly connected with the outside of screen 5, two wall grooves 7 are set in the inner wall of screening box 1, the inside fixed connection of wall groove 7 has guide rod 8, spring one 9 is sleeved to the outside of guide rod 8, guiding platform 10 is fixedly connected in the inside of screening box 1, shunt pool 11 is fixedly connected to the outside of screening box 1, two wall grooves 7 are set in the inner wall of screening box 1, the outside of shunt pool 11 is provided with quantity regulating subassembly, quantity regulating subassembly is used to control the amount of feed when slag enters smelting equipment, and the amount of feed is controlled, and the slag is added to the inside of screening box 1 from the through port of the top of screening box 1, at this time, motor 2 is started to drive rotating rod 3 to rotate, so that cam 4 rotates, and then let screen 5 move upwards, under the elastic force of spring one 9, screen 5 will quickly reset, so screen 5 can be made to shake up and down, so that the slag of smaller particle size penetrates the mesh of screen 5 and falls on the inclined plane of guiding platform 10, and is discharged from left discharge port 12, and the slag of larger particle size will slide from the top of screen 5 and be discharged from right discharge port 12, so that the slag can be screened in advance, and the use of uniform and smaller slag can make the effect of desulfurization more accurate during smelting.

[0024] Referring to Figures 2-4The quantity adjusting assembly comprises a temporary storage pool 13, one side of the temporary storage pool 13 is fixedly connected to the front side of the diversion pool 11, two electric push rods 14 are installed on one side of the temporary storage pool 13, three partition plates 15 are slidably connected to the inner side of the temporary storage pool 13, the top of each partition plate 15 is fixedly connected to a movable block 16, one end of each electric push rod 14 is fixedly connected to the outer side of the movable block 16, the other side of the temporary storage pool 13 is fixedly connected to a fixed block 17, a sliding rod 18 is slidably connected to the inside of the fixed block 17, one end of the sliding rod 18 is fixedly connected to the outer side of the middle movable block 16, a spring 2 19 is sleeved outside the sliding rod 18, one end of the spring 2 19 is fixedly connected to the outer side of the movable block 16, the other end of the spring 2 19 is fixedly connected to the outer side of the fixed block 17, the outer side of the cam 4 is attached to the bottom of the screen 5, one end of the rotating rod 3 is rotatably connected to the inner wall of the screening box 1, the inner side of the sliding block 6 is slidably connected to the outer side of the guide rod 8, one end of the spring 1 9 is fixedly connected to the top of the sliding block 6, the other end of the spring 1 9 is fixedly connected to the inner side of the wall groove 7, after being started, the rear electric push rod 14 pushes the rear movable block 16 to move, so that the rear partition plate 15 moves to the left, the slag flows to the opening, the middle movable block 16 is located at the middle position, when the rear movable block 16 moves a distance, the middle movable block 16 is driven to move, when the slag fills two areas surrounded by the three partition plates 15, the rear electric push rod 14 is started to pull the rear partition plate 15 back, the middle partition plate 15 is reset under the elastic force of the spring 2 19, then the front electric push rod 14 is started to open the front partition plate 15, and the middle partition plate 15 is opened, so that two or one partition of slag can be stably added at one time, which is more stable and convenient than manual control.

[0025] Working principle: first, the slag is added from the top of the screening box 1 into the inside of the screening box 1, at this time, the motor 2 drives the rotating rod 3 to rotate, so that the cam 4 rotates, and then the screen 5 moves up, under the elastic force of the spring 9, the screen 5 will quickly reset, so that the screen 5 can move up and down, so that the smaller slag particles can pass through the screen 5 and fall on the inclined surface of the guide table 10, and then be discharged from the left discharge port 12, and the larger slag particles will slide from the top of the screen 5 and be discharged from the right discharge port 12, so that the slag can be screened in advance, and the use of uniform and small slag particles can make the smelting more precise control of the desulfurization effect, in addition, the rear electric push rod 14 is started to drive the rear movable block 16 to move, so that the rear partition plate 15 moves to the left, and the slag flows to the opening, and the middle movable block 16 is located at the middle position, when the rear movable block 16 moves a distance to drive the middle movable block 16 to move, when the slag fills two areas surrounded by the three partition plates 15, the rear electric push rod 14 is started to pull the rear partition plate 15 back, and the middle partition plate 15 is reset under the elastic force of the spring 19, and then the front electric push rod 14 is started to open the front partition plate 15, and then drive the middle partition plate 15 to open, so that two or one partition of slag can be added at a time, which is more stable and convenient than manual control.

[0026] Finally, it should be pointed out that: the above only for the preferred embodiments of the present application, and not for limiting the present application, although the foregoing detailed description of the present application is made with reference to the foregoing embodiments, for those skilled in the art, it still can be modified, or part of the technical features of the equivalent replacement, any modification, equivalent replacement, improvement, etc. within the spirit and principles of the present application, should be included in the protection scope of the present application.

Claims

1. A low phosphorus smelting slag quantity regulating device comprising a screening box (1), characterized in that: The motor (2) is installed outside the screening box (1), the output end of the motor (2) is fixedly connected with a rotating rod (3), the outer side of the rotating rod (3) is fixedly connected with a cam (4), the inner side of the screening box (1) is slidably connected with a screen (5), the outer sides of the screen (5) are fixedly connected with two sliding blocks (6), the inner walls of the screening box (1) are both provided with two wall grooves (7), the inner side of the wall groove (7) is fixedly connected with a guide rod (8), the outer side of the guide rod (8) is sleeved with a spring (9), the inner side of the screening box (1) is fixedly connected with a guide table (10), the outer side of the screening box (1) is fixedly connected with a shunt pool (11), the inner walls of the screening box (1) are both provided with a discharge port (12), the outer side of the shunt pool (11) is provided with an amount adjusting assembly, and the amount adjusting assembly is used for controlling the amount of feed when the slag enters the smelting equipment.

2. A low phosphorus smelting slag feeding amount adjusting device according to claim 1, characterized in that: The amount adjusting assembly comprises a temporary storage pool (13), one side of the temporary storage pool (13) is fixedly connected to the front side of the shunt pool (11), the inner side of the temporary storage pool (13) is slidably connected with three partitions (15), the other side of the temporary storage pool (13) is fixedly connected with a fixed block (17), the inner side of the fixed block (17) is slidably connected with a sliding rod (18), and the outer side of the sliding rod (18) is sleeved with a spring (19).

3. A low phosphorus smelting slag feeding amount adjusting device according to claim 2, characterized in that: The temporary storage pool (13) is provided with two electric push rods (14) on one side, and the top of the partition (15) is fixedly connected with a movable block (16).

4. A low phosphorus smelting slag feeding amount adjusting device according to claim 3, characterized in that: One end of the electric push rod (14) is fixedly connected with the outer side of the movable block (16).

5. A low phosphorus smelting slag feed regulating device according to claim 4, characterized in that: One end of the sliding rod (18) is fixedly connected with the outer side of the movable block (16).

6. A low phosphorus smelting slag feed regulating device according to claim 5, characterized in that: One end of the spring (19) is fixedly connected with the outer side of the movable block (16), and the other end of the spring (19) is fixedly connected with the outer side of the fixed block (17).

7. A low phosphorus smelting slag feeding amount adjusting device according to claim 1, characterized in that: The outer side of the cam (4) is attached to the bottom of the screen (5), and one end of the rotating rod (3) is rotatably connected with the inner wall of the screening box (1).

8. A low phosphorus smelting slag feeding amount adjusting device according to claim 1, characterized in that: The inner side of the sliding block (6) is slidably connected with the outer side of the guide rod (8), one end of the spring (9) is fixedly connected with the top of the sliding block (6), and the other end of the spring (9) is fixedly connected with the inner side of the wall groove (7). The inner side of the sliding block (6) is slidably connected with the outer side of the guide rod (8), one end of the spring (9) is fixedly connected with the top of the sliding block (6), and the other end of the spring (9) is fixedly connected with the inner side of the wall groove (7).

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