A blowing slagging device and method thereof

Abstract

The application discloses a blowing slag-removing device and a method thereof, and belongs to the technical field of slag-removing devices.The application comprises a blowing rod, a plurality of blowing holes are uniformly arranged on the bottom side of the rod body of the blowing rod, two groups of rotary disc bearings are installed on the blowing rod, the outer rings of the rotary disc bearings are fixed with a load-bearing frame, a stepping motor is installed in the load-bearing frame, a driving gear is installed on the output shaft of the stepping motor, a gear ring is installed on the rod body of the blowing rod, and the gear ring is in meshing transmission with the driving gear.The slag on the liquid surface is blown off through the blowing rod and the blowing holes by blowing, and the blowing direction of the blowing holes is controlled by the stepping motor, so that the blowing direction can be flexibly adjusted, the back blowing of the wind force acting on the inner wall of the converter is fully utilized to push the slag close to the inner wall of the converter, and the blowing direction is adjusted to ensure that the slag is blown to the slag-removing opening, so that the slag-removing efficiency and effect are guaranteed.

Description

Technical Field

[0001] The present invention relates to the technical field of slag removal devices, and more particularly to an air blowing slag removal device and a method thereof. Background Art

[0002] After pre-treatment of molten iron, a large amount of desulfurization slag remains within the ladle. To prevent resulfurization and iron loss, this slag must be removed through various means. In the steelmaking industry, skimming the liquid slag is typically accomplished by tilting the ladle to a position where a skimmer plate is positioned just below the iron / slag interface, then using the plate to remove the slag. However, a common problem with skimming systems is that the plate cannot reach the slag layer on the ladle's rear wall. Therefore, only the slag initially located around the slag opening can be quickly removed, leaving both efficiency and effectiveness to be improved. Summary of the Invention

[0003] 1. Technical problem to be solved by the invention

[0004] In response to the defects and shortcomings of the existing technology, the present invention provides a passivation liquid level control device for a roller coater and a control method thereof. The present invention can realize the rotation of the blowing rod itself and the position movement of the blowing rod in a two-axis plane. The blowing rod is driven by a stepper motor to rotate at any angle in its own axis, and is driven by two screw motors to move in the X\Y two-axis plane, so as to adjust its own position and actively expel slag.

[0005] 2. Technical solution

[0006] In order to achieve the above object, the technical solution provided by the present invention is:

[0007] The present invention provides an air blowing slag removal device, comprising an air blowing rod, wherein the top opening of the air blowing rod is connected to an air compressor via an air supply pipe, a plurality of air blowing holes are evenly opened on the bottom side of the rod body of the air blowing rod, two sets of turntable bearings are installed on the air blowing rod, the outer rings of the turntable bearings are fixed to a load-bearing frame, a stepping motor is installed in the load-bearing frame, a driving gear is installed on the output shaft of the stepping motor, a gear ring is installed on the rod body of the air blowing rod, and the gear ring is meshed with the driving gear for transmission;

[0008] A slider 1 is fixed on the load-bearing frame, and the slider 1 is movably sleeved on the screw rod 1. A screw motor 1 is installed on the screw rod 1 for transmission. The screw motor 1 is fixed to the slider 1. Sliders 2 are welded and installed at both ends of the screw rod 1. The sliders 2 at both ends are movably sleeved on the screw rod 2 at the corresponding position respectively. A screw motor 2 is installed on the screw rod 2 for transmission. The screw motor 2 is fixed to the slider 2 with bolts, and fixed seats are welded and installed at both ends of the screw rod 2.

[0009] Furthermore, the blowing rod is located directly above the converter, and the bottom of the blowing rod is sealed.

[0010] Further, the port of the blowing hole is arranged obliquely downward.

[0011] Further, the blowing hole is arranged in plurality, and the plurality of blowing holes are uniformly distributed within a 165-degree range of the outer circumferential surface of the blowing rod.

[0012] Further, the side of the fixing seat is fixed with the hanger one, and the top of the hanger one is provided with a hanger two.

[0013] Further, the hanger one is provided with a mounting rack, and the mounting rack is provided with an air compressor, and the air compressor is connected to the top opening of the blowing rod through a gas supply pipe.

[0014] A method for blowing and slagging device, the steps are:

[0015] Step one: before installation, hoisting is carried out from the position of the fixing seat, when the converter is inclined during slagging, first control the work of the lead screw motor two and the lead screw motor one, the lead screw motor two drives the lead screw one to move forward and backward along the lead screw two, and the lead screw motor one drives the load bearing frame to move left and right along the lead screw one, thereby forming a two-axis moving system, so as to control the position of the blowing rod, and make it move horizontally from the inclined direction of the outside of the converter to the inner wall of the inside of the converter;

[0016] Step two: the stepping motor works, and the meshing transmission relationship between the driving gear and the gear ring drives the blowing rod to rotate, so that the blowing hole faces the inner wall of the inside of the converter, the air compressor works to supply gas to the blowing rod through the gas supply pipe, and the gas is blown to the inner wall of the inside of the converter through the blowing hole, and the wind is blocked and dispersed due to the blockage of the inner wall of the inside, so as to blow the slag attached to the inner wall of the inside to the inclined side, at this time, the slag can be blown off from the slagging port of the converter under the action of the wind;

[0017] Step three: when the slag attached to the inner wall of the inside of the converter is blown away, the stepping motor is controlled to work again, so that the blowing rod rotates by 180 degrees, and the blowing hole faces the slagging port of the converter, at this time, the gas blown out through the blowing hole can directly blow the slag to the slagging port, and then use the wind to blow it off, so as to realize the effect of blowing and slagging, and after the slagging is completed, the lead screw motor one and the lead screw motor two are controlled again, so that the blowing rod is moved out from the inside of the converter to the initial position outside.

[0018] 3. Beneficial effects

[0019] Compared with the prior art, the technical scheme provided by the present application has the following beneficial effects:

[0020] The present application is blown by the way, through the blowing rod and the blowing hole to the surface of molten iron, the slag floating on the liquid surface is blown off through the slagging hole by the wind force, and the control of the blowing hole direction by the stepping motor can flexibly adjust the blowing direction to fully utilize the wind force to push the slag adhering to the inner wall of the converter, and then adjust the blowing direction to ensure that the slag is blown to the slagging hole, and the slagging efficiency and effect are guaranteed.

[0021] The present application can guide the blown gas by setting the blowing hole to be downwardly inclined, ensure that it can be stably and reliably blown on the slag, and the blowing rod does not need to be extended into the molten iron, and the planar distribution of the blowing hole also ensures the slag blowing amount at one time, and ensures the slagging efficiency.

[0022] The present application can adaptively adjust according to the slag amount at different positions of the molten iron liquid surface by adjusting and controlling the position of the blowing rod through two lead screws and the matched motor, ensure the reliable blowing kinetic energy of the wind force on the slag, and ensure that it can be stably blown out. BRIEF DESCRIPTION OF DRAWINGS

[0023] Figure 1 It is the overall structural diagram of the present application patent;

[0024] Figure 2 It is the installation schematic diagram of the load-bearing frame in the present application patent;

[0025] Figure 3 It is the installation schematic diagram of the blowing rod in the present application patent;

[0026] Figure 4 It is the transmission structure diagram of the blowing rod and the stepping motor in the present application patent;

[0027] Figure 5 It is the enlarged view of the blowing hole in the present application patent;

[0028] Figure 6 It is the use example diagram of the present application patent.

[0029] In the figure: 1, blowing rod; 2, gear ring; 3, driving gear; 4, stepping motor; 5, blowing hole; 6, rotary bearing; 7, load-bearing frame; 8, lead screw one; 9, sliding block one; 10, lead screw motor one; 11, sliding block two; 12, lead screw two; 13, lead screw motor two; 14, fixed seat; 15, hanging bracket one; 16, hanging bracket two; 17, mounting bracket; 18, air compressor; 19, air supply pipe; 20, converter. DETAILED DESCRIPTION

[0030] The present application will be further described below in combination with the drawings and examples:

[0031] Example 1

[0032] FromFigures 1-6 It can be seen that the blowing slag device of the embodiment comprises a blowing rod 1, the blowing rod 1 is located directly above the converter 20, the bottom of the blowing rod 1 is sealed, the top of the blowing rod 1 is connected with the air compressor 18 through the air supply pipe 19, the bottom side of the rod body of the blowing rod 1 is uniformly provided with a plurality of blowing holes 5, two groups of rotary bearings 6 are installed on the blowing rod 1, the outer ring of the rotary bearing 6 is fixed with a load-bearing frame 7, a stepping motor 4 is installed in the load-bearing frame 7, a driving gear 3 is installed on the output shaft of the stepping motor 4, a gear ring 2 is installed on the rod body of the blowing rod 1, and the gear ring 2 is in meshing transmission with the driving gear 3.

[0033] The load-bearing frame 7 is fixed with a sliding block one 9, the sliding block one 9 is movably sleeved on a lead screw one 8, the lead screw one 8 is drivingly installed with a lead screw motor one 10, the lead screw motor one 10 is fixed with the sliding block one 9, the lead screw one 8 is welded with a sliding block two 11 at both ends, the sliding block two 11 at both ends is movably sleeved on a corresponding position of a lead screw two 12, the lead screw two 12 is drivingly installed with a lead screw motor two 13, the lead screw motor two 13 is bolted with the sliding block two 11, and the lead screw two 12 is welded with a fixed seat 14 at both ends.

[0034] The port of the blowing hole 5 is obliquely downward, a plurality of blowing holes 5 are provided, and the plurality of blowing holes 5 are uniformly distributed within a range of 165° of the outer circumferential surface of the blowing rod 1.

[0035] The downward oblique arrangement of the blowing hole 5 can guide the blown gas downward, so that the blowing rod 1 does not need to be stretched into the molten iron, only needs to be close to the molten iron liquid surface, and the downward obliquely blown gas can be directly blown on the liquid surface and the scum on the liquid surface. The range of 165° can also constrain the blowing direction of the gas to the scum, so as to ensure that the slag hole of the converter 20 can be stably blown, the echo of the scum on the molten iron liquid surface in the converter 20 is reduced, and the efficiency of the slag removal is ensured.

[0036] The side of the fixed seat 14 is fixed with a hanging bracket one 15, the top of the hanging bracket one 15 is installed with a hanging bracket two 16, the hanging bracket one 15 is installed with a mounting bracket 17, the mounting bracket 17 is installed with an air compressor 18, and the air compressor 18 is connected to the top of the blowing rod 1 through the air supply pipe 19.

[0037] The hanging bracket one 15 fixes the fixed seats 14 on both sides of the lead screw one 8, the hanging bracket two 16 and the hanging bracket one 15 form a fixed frame, the hanging bracket two 16 can be used for hoisting and fixing during hoisting, the air compressor 18 is installed on the hanging bracket, and the length of the air supply pipe 19 can be reduced.

[0038] A method of a blowing slag device, the steps of which are:

[0039] Step one: hoist from the fixed seat 14 position before installation, when the converter 20 is tilted, first control the screw rod motor two 13 and the screw rod motor one 10 work, the screw rod motor two 13 work and push the screw rod one 8 along the screw rod two 12 move back and forth, the screw rod motor one 10 work and push the bearing bracket 7 along the screw rod one 8 move left and right, thereby constitute two-axis movement system, to control the position of the blowing rod 1, make it from the outside of the converter 20 from the oblique direction to the inside of the converter 20, to the inner wall of the side;

[0040] Step two: the stepper motor 5 works, using the meshing transmission relationship of the driving gear 3 and the gear ring 2, drive the blowing rod 1 to rotate, make the blowing hole 5 towards the inside wall of the converter 20, the air compressor 18 works through the gas supply pipe 19 to the blowing rod 1, the gas is blown to the inside wall of the converter 20 through the blowing hole 5, because of the block of the inside wall, the wind will be blocked and dispersed, thereby blowing the slag attached to the inside wall of the converter 20 to the inclined side, at this time, the slag can be blown off from the converter 20 by the wind force;

[0041] Step three: when the gas blows the slag attached to the inside wall of the converter 20 away, control the stepper motor 4 to work again, make the blowing rod 1 rotate 180°, make the blowing hole 5 towards the converter 20, at this time, the gas blown out through the blowing hole 5 can directly blow the slag to the slagging port, and then use the wind force to blow it off, realize the effect of blowing and slagging, after the slagging is completed, the screw rod motor one 10 and the screw rod motor two 13 control again, move the blowing rod 1 from the inside of the converter 20 to the outside initial position.

[0042] The present application can realize the rotation of the blowing rod 1 itself and the position movement of the blowing rod 1 in the two-axis plane, the blowing rod 1 is driven by the stepper motor 4 to rotate at any angle in the axial direction, and is moved in the two-axis plane X\Y driven by the two screw rod motors, so as to adjust the position of the blowing rod 1 to actively slag.

[0043] The present application blows the gas through the blowing rod and the blowing hole to the surface of the molten iron, uses the wind force to push the slag floating on the liquid surface to blow off through the slagging port, and at the same time, the stepper motor controls the direction of the blowing hole, which can flexibly adjust the blowing direction, so as to fully utilize the wind force to blow the slag attached to the inside wall of the converter, and then adjust the blowing direction to ensure that the slag is blown to the slagging port, so that the slagging efficiency and effect are guaranteed.

[0044] The present application sets the blowing hole to be inclined downward, can guide the blown gas, ensure that the gas can be stably and reliably blown on the slag, and the blowing rod does not need to be stretched into the molten iron, and the surface distribution of the blowing hole also ensures the amount of slag blown at one time, and ensures the slagging efficiency.

[0045] The application adjusts and controls the position of the blowing rod through two lead screws and matched motors, can adaptively adjust according to the residue amount of different positions of the molten iron liquid surface, and ensures the reliable blowing kinetic energy of the slag by the wind, and ensures stable blowing.

[0046] The above description of the application and its embodiments is illustrative and not restrictive, and the embodiments shown in the drawings are only one of the embodiments of the application, and the actual structure is not limited thereto. Therefore, if a person skilled in the art is inspired thereby, without departing from the purpose of the application, similar structural modes and embodiments can be designed without creativity, which shall belong to the protection scope of the application.

Claims

1. An air blowing slag removal device, comprising an air blowing rod (1), characterized in that: The top of the blowing rod (1) is connected to the air compressor (18) through the air supply pipe (19), and a plurality of blowing holes (5) are evenly opened on the bottom side of the rod body of the blowing rod (1). Two sets of turntable bearings (6) are installed on the blowing rod (1), and the outer ring of the turntable bearing (6) is fixed to the load-bearing frame (7). A stepper motor (4) is installed in the load-bearing frame (7), and a driving gear (3) is installed on the output shaft of the stepper motor (4). A gear ring (2) is installed on the rod body of the blowing rod (1), and the gear ring (2) is meshed with the driving gear (3) for transmission; The load-bearing frame (7) is fixed with a slider (9), which is movably mounted on a screw rod (8), and a screw motor (10) is installed on the screw rod (8), and the screw motor (10) is fixed to the slider (9). Sliders (11) are welded and installed at both ends of the screw rod (8), and the sliders (11) at both ends are movably mounted on the screw rod (12) at the corresponding positions, and a screw motor (13) is installed on the screw rod (12), and the screw motor (13) is fixed to the slider (11) by bolts. Fixed seats (14) are welded and installed at both ends of the screw rod (12).

2. The air blowing slag removal device according to claim 1, characterized in that: The blowing rod (1) is located directly above the converter (20), and the bottom opening of the blowing rod (1) is sealed.

3. The air blowing slag removal device according to claim 1, characterized in that: The port of the blowing hole (5) is arranged to be tilted downward.

4. The air blowing slag removal device according to claim 1, characterized in that: The blowing holes (5) are provided in plurality, and the plurality of blowing holes (5) are evenly distributed within a range of 165° on the outer peripheral surface of the blowing rod (1).

5. The air blowing slag removal device according to claim 1, characterized in that: The side of the fixing seat (14) is fixed to the hanger 1 (15), and the top of the hanger 1 (15) is installed with the hanger 2 (16).

6. The air blowing slag removal device according to claim 5, characterized in that: The hanger 1 (15) is provided with a mounting frame (17), and the mounting frame (17) is provided with an air compressor (18). The air compressor (18) is connected to the top of the blowing rod (1) through an air supply pipe (19).

7. The method for using the air blowing slag removal device according to claim 6, characterized in that: The steps are: Step 1: Before installation, hoist the converter (20) from the fixed seat (14). When the converter (20) is tilted during slag removal, first control the screw motor 2 (13) and the screw motor 1 (10) to work. The screw motor 2 (13) works to push the screw rod 1 (8) to move forward and backward along the screw rod 2 (12). The screw motor 1 (10) works to push the load-bearing frame (7) to move left and right along the screw rod 1 (8), thereby forming a two-axis moving system to control the position of the blowing rod (1) so that it moves horizontally from the outside of the converter (20) in the tilting direction to the inner wall of the inside of the converter (20); Step 2: The stepper motor (4) works, and utilizes the meshing transmission relationship between the driving gear (3) and the gear ring (2) to drive the blowing rod (1) to rotate, so that the blowing hole (5) faces the inner wall of the converter (20). The air compressor (18) works to supply gas to the blowing rod (1) through the air supply pipe (19). The gas is blown toward the inner wall of the converter (20) through the blowing hole (5). Due to the obstruction of the inner wall, the wind is blocked and dissipated, thereby blowing the slag floating on the molten iron liquid surface close to the inner wall toward the inclined side. At this time, the slag can fall out from the slag removal port of the converter (20) under the action of the wind. Step 3: After the gas blows away the slag attached to the inner wall of the converter (20), the stepper motor (4) is controlled to work again, so that the blowing rod (1) rotates 180 degrees, so that the blowing hole (5) faces the slag removal port of the converter (20). At this time, the gas blown out through the blowing hole (5) directly blows the slag toward the slag removal port, and then uses the wind force to blow it off, achieving the effect of blowing away the slag. After the slag removal is completed, the screw motor 1 (10) and the screw motor 2 (13) are controlled again to move the blowing rod (1) out of the converter (20) and move it to the initial position on the outside.

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