Three-dimensional stoking manipulator for submerged arc furnace

Abstract

The three-dimensional stoking manipulator for the submerged arc furnace comprises a first sleeve piece and a second sleeve, the first sleeve piece is connected to a smoke hood, the second sleeve is spherically hinged to the first sleeve piece, the second sleeve swings relative to the first sleeve piece, and a driving mechanism for driving the second sleeve to swing is arranged on the outer side of the second sleeve. A transmission mechanism and a stoking rake are arranged in the second sleeve, a sealing partition plate is arranged at the front end of the transmission mechanism, the stoking rake penetrates through the sealing partition plate from the second sleeve and extends out of the smoke hood, and the transmission mechanism drives the stoking rake to stretch out and draw back. According to the three-dimensional stoking manipulator for the submerged arc furnace, three-dimensional free movement of the stoking rake is achieved in the closed submerged arc furnace, and the problem that a furnace door needs to be opened when the stoking rake is used is thoroughly solved.

Description

Technical Field

[0001] The utility model relates to the field of submerged arc furnace equipment, in particular to a three-dimensional furnace tamping manipulator for a submerged arc furnace. Background Art

[0002] The tamping process is a process in the smelting process of the submerged arc furnace, which is a major part of the production process of the submerged arc furnace and a necessary condition for the recovery of the furnace condition. The tamping tools used for tamping are used to make the materials in the furnace evenly distributed, expand the reaction zone, eliminate suspended materials, crush the slag, reduce crusting and flame spraying on the material surface. At present, the commonly used tamping tool is an electric tamping car, which needs to open the furnace doors distributed along the circumference of the smoke hood to operate, thereby bringing a large amount of air into the furnace, reducing the furnace temperature, increasing energy consumption, and increasing the difficulty of environmental protection management. Utility Model Content

[0003] In order to solve the problem of opening the furnace door when using the furnace tamping tool in the prior art, the utility model provides a three-dimensional furnace tamping manipulator for a submerged arc furnace.

[0004] The technical solution of the utility model is achieved in this way:

[0005] A three-dimensional tamping robot for an electric arc furnace comprises a first set and a second sleeve, wherein the first set is connected to a fume hood, the second sleeve is spherically hinged to the first set, the second sleeve swings relative to the first set, a driving mechanism for driving the second sleeve to swing is arranged on the outer side of the second sleeve, a transmission mechanism and a tamping rake are arranged in the second sleeve, a sealing partition is arranged at the front end of the transmission mechanism, the tamping rake extends from the second sleeve through the sealing partition out of the fume hood, and the transmission mechanism drives the tamping rake to extend and retract.

[0006] Preferably, the first kit includes a connecting sphere with a connecting ring at one end and a flat sphere symmetrical on both sides at the other end, and two spherical flanges. One end of the connecting sphere is connected to the smoke hood through a flange, and the other end of the connecting sphere is connected to the outside of the two spherical flanges. The two spherical flanges are symmetrically arranged about the center line of the flat sphere and are connected to form a spherical flange pair.

[0007] Preferably, the second sleeve is configured as a long-arm sleeve with a tapered front end, the front end of the long-arm sleeve is fixed to a spherical flange, and swings relative to the connecting sphere through a spherical flange pair.

[0008] Preferably, the driving mechanism includes a horizontal driving cylinder and a vertical driving cylinder, the base of the horizontal driving cylinder is connected to the smoke hood through a universal joint, and the driving end is hinged to the second sleeve, the base of the vertical driving cylinder is connected to the smoke hood through a universal joint, and the driving end is hinged to the second sleeve, and the horizontal driving cylinder and the vertical driving cylinder are spaced around the second sleeve.

[0009] Preferably, the transmission mechanism includes a positioning wheel, a ball screw pair and a power mechanism, the power mechanism is fixed on the outside of the second sleeve, connected to the screw of the ball screw pair located in the second sleeve, the outer periphery of the nut of the ball screw pair is connected to the positioning wheel, and the positioning wheel is located on the inner wall of the second sleeve; the nut of the ball screw pair fixes the tamping rake, and the tamping rake extends and retracts with the movement of the nut of the ball screw pair.

[0010] Preferably, the sealing baffle is arranged on the rear side of the front end of the long arm sleeve.

[0011] Preferably, the axis of the ball screw pair is parallel to the axis of the tamping rake, and the center lines of the cross sections are the same center line.

[0012] The beneficial effects of the utility model are as follows: the three-dimensional tamping robot for an ore-fired furnace of the utility model, the tamping rake swings back and forth and left and right under the action of the driving mechanism, and telescopes under the action of the transmission mechanism, and the whole realizes three-dimensional movement; when the tamping rake moves, there is no need to open the furnace door, and the closedness of the ore-fired furnace is not affected, which completely solves the problem caused by the need to open the furnace door when the tamping rake moves, and realizes the three-dimensional free movement of the tamping rake in the closed ore-fired furnace. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0014] Figure 1 This is a schematic diagram of the internal structure of a three-dimensional furnace tamping manipulator for a submerged arc furnace according to the utility model;

[0015] Figure 2 It is a vertical cross-sectional internal structure schematic diagram of a three-dimensional furnace tamping manipulator for a submerged arc furnace according to the utility model;

[0016] Figure 3 The utility model is a cross-sectional schematic diagram of a three-dimensional furnace tamping robot for a submerged arc furnace.

[0017] In the figure:

[0018] 1. Connecting sphere; 2. Spherical flange; 3. Smoke hood; 4. Long arm sleeve; 5. Horizontal drive cylinder; 6. Vertical drive cylinder; 7. Transmission mechanism; 8. Ramming rake; 9. Sealing partition; 71. Positioning wheel; 72. Ball screw pair; 73. Power mechanism. DETAILED DESCRIPTION

[0019] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0020] Example: Figures 1 to 3 A three-dimensional tamping robot for an electric arc furnace is shown, comprising: a first set and a second sleeve, the first set comprising a connecting sphere 1 and a spherical flange 2, one end of which is a connecting ring and the other end is a flat spherical symmetric on both sides, one end of the connecting sphere 1 is connected to a smoke hood 3 through a flange, and two spherical flanges 2 are arranged on the outside of the other end of the connecting sphere 1, the two spherical flanges are symmetrically arranged about the center line of the flat sphere, and the two spherical flanges are connected by nuts and screws to form a spherical flange pair; the second sleeve is arranged as a long arm sleeve 4 with a conical front end, the front end of the long arm sleeve 4 is fixed to a spherical flange 2, and the long arm sleeve 4 swings relative to the connecting sphere 1 through the spherical flange pair. A driving mechanism for driving the movement of the second sleeve is arranged outside the second sleeve, and the driving mechanism includes a horizontal driving cylinder 5 and a vertical driving cylinder 6. The base of the horizontal driving cylinder 5 is connected to the fume hood 3 through a universal joint, and the driving end is hinged to the long arm sleeve 4. The base of the vertical driving cylinder 6 is connected to the fume hood 3 through a universal joint, and the driving end is hinged to the long arm sleeve 4. The horizontal driving cylinder 5 and the vertical driving cylinder 6 are spaced around the long arm sleeve 4. A transmission mechanism 7 and a furnace tamping rake 8 are arranged inside the long arm sleeve 4. A sealing partition 9 is arranged at the front end of the transmission mechanism, and the sealing partition 9 is located at the rear side of the front end of the long arm sleeve. The furnace tamping rake 8 extends from the second sleeve through the sealing partition 9 to the fume hood 3, and the transmission mechanism 7 drives the furnace tamping rake to extend and retract.

[0021] As 1 and Figure 2 As shown, the transmission mechanism 7 includes a positioning wheel 71, a ball screw pair 72 and a power mechanism 73. The power mechanism 73 is fixed to the outside of the long arm sleeve 4 and connected to the screw of the ball screw pair 72 located inside the long arm sleeve 4. The outer periphery of the nut of the ball screw pair 72 is connected to the positioning wheel. The positioning wheel 71 is located on the inner side wall of the long arm sleeve 4. The outer periphery of the nut of the ball screw pair 72 is fixed to the furnace tamping rake 8. The furnace tamping rake 8 is extended and retracted as the nut of the ball screw pair 72 moves. Figure 3 As shown, the axis of the ball screw pair 72 is parallel to the axis of the furnace tamping rake 8, and the cross-sectional center line of the ball screw pair 72 and the cross-sectional center line of the furnace tamping rake 8 are the same center line.

[0022] The connecting sphere of the first set is connected to the fume hood on the ore-fired furnace, and the connecting sphere is fixed on the fume hood. The second sleeve is set as a long arm sleeve with a conical front end. The conical front end of the long arm sleeve is welded to a spherical flange outside the connecting sphere. The two spherical flanges are connected by nuts and

[0023] The two spherical flanges are connected by nuts and screws. The interval of the nuts is adjusted to connect the two spherical flanges to form a spherical flange pair. The two spherical flanges swing along the center line and axis of the flat sphere on the connecting sphere. The long arm sleeve can swing with the swing of the spherical flange pair. The conical front end of the long arm sleeve cooperates with the other end of the connecting sphere. The spherical flange welded to the long arm sleeve closes the long arm sleeve and the connecting sphere, forming a closed space in the first kit and the second sleeve.

[0024] The second sleeve swings relative to the first set, so that the long arm sleeve can swing relative to the connecting sphere. The horizontal drive cylinder and the vertical drive cylinder drive the long arm sleeve to swing left and right, front and back respectively. When the long arm sleeve swings, the tamping rake inside it swings accordingly, thereby realizing the left and right, front and back swing of the tamping rake. A sealing baffle is provided at the front end of the transmission mechanism. The sealing baffle is located at the rear side of the conical front end of the long arm sleeve, which not only isolates the transmission mechanism in the long arm sleeve, but also limits the tamping rake to prevent the tamping rake from being too long and offset.

[0025] Under the action of the power mechanism, the ball screw of the transmission mechanism's ball screw pair rotates to drive the nut to move, and the movement of the nut drives the extension and retraction of the furnace tamping rake. The positioning wheel on the outer periphery of the nut is located on the inner wall of the long arm sleeve, which not only limits the movement of the nut, but also limits the extension and retraction of the furnace tamping rake to avoid deviation. The ball screw is connected to the power mechanism, and the power mechanism is fixed on the outside of the long arm sleeve, and cooperates with the positioning wheel and the sealing partition to fix the ball screw and the nut. The ball screw rotates stably in the long arm sleeve to make the furnace tamping rake stably extend and retract.

[0026] The tamping rake swings forward and backward, left and right under the action of the driving mechanism, and telescopes under the action of the transmission mechanism, realizing three-dimensional movement as a whole. When the tamping rake telescopes, it directly telescopes in the first set, the second sleeve and the ore-heating furnace, without opening the furnace door, and does not affect the sealing of the ore-heating furnace. When the tamping rake swings, it is the second sleeve that rotates to drive the tamping rake to swing, and it does not need to open the furnace door to operate, and does not affect the sealing of the ore-heating furnace. Therefore, the tamping rake avoids opening the furnace door when moving, which completely solves the problem of opening the furnace door to allow air to enter the furnace, lowering the furnace temperature and increasing energy consumption.

[0027] When in use, it is necessary to first fix the two spherical flanges on the connecting sphere, then connect one end of the connecting sphere to the fume hood through a flange, and then weld a spherical flange to the front end of the long arm sleeve to connect the two spherical flanges to form a spherical flange pair. The long arm sleeve is provided with a ball screw pair, a positioning wheel and a sealing baffle of the transmission mechanism, and the power mechanism of the transmission mechanism is fixed at the outer end. The nut of the ball screw pair is fixed to the furnace tamping rake, and the furnace tamping rake passes through the sealing baffle and the fume hood. The horizontal motion cylinder and the vertical motion cylinder are connected to the outside of the long arm sleeve, and the horizontal motion cylinder and the vertical motion cylinder are connected to the fume hood through universal joints respectively. Under the action of the horizontal motion cylinder, the vertical motion cylinder and the transmission mechanism, the three-dimensional mechanical movement of the furnace tamping rake is realized.

[0028] 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 principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A three-dimensional furnace tamping manipulator for a submerged arc furnace, characterized in that: include: The first sleeve is connected to the smoke hood, the second sleeve is spherically hinged to the first sleeve, the second sleeve swings relative to the first sleeve, a driving mechanism for driving the second sleeve to swing is arranged on the outer side of the second sleeve, a transmission mechanism and a tamping rake are arranged in the second sleeve, a sealing partition is arranged at the front end of the transmission mechanism, the tamping rake extends from the second sleeve through the sealing partition out of the smoke hood, and the transmission mechanism drives the tamping rake to extend and retract.

2. The three-dimensional furnace tamping robot for a submerged arc furnace according to claim 1, characterized in that: The first kit includes a connecting sphere with a connecting ring at one end and a flat sphere symmetrical on both sides at the other end, and two spherical flanges. One end of the connecting sphere is connected to the smoke hood through a flange, and the other end of the connecting sphere is connected to the outside of the two spherical flanges. The two spherical flanges are symmetrically arranged about the center line of the flat sphere and connected to form a spherical flange pair.

3. The three-dimensional furnace tamping robot for a submerged arc furnace according to claim 2, characterized in that: The second sleeve is configured as a long-arm sleeve with a tapered front end. The front end of the long-arm sleeve is fixed to a spherical flange and swings relative to the connecting sphere through a spherical flange pair.

4. The three-dimensional furnace tamping robot for a submerged arc furnace according to claim 1, characterized in that: The driving mechanism includes a horizontal driving cylinder and a vertical driving cylinder. The base of the horizontal driving cylinder is connected to the smoke hood through a universal joint, and the driving end is hinged to the second sleeve. The base of the vertical driving cylinder is connected to the smoke hood through a universal joint, and the driving end is hinged to the second sleeve. The horizontal driving cylinder and the vertical driving cylinder are spaced around the second sleeve.

5. The three-dimensional furnace tamping robot for a submerged arc furnace according to claim 1, characterized in that: The transmission mechanism includes a positioning wheel, a ball screw pair and a power mechanism. The power mechanism is fixed on the outside of the second sleeve and connected to the screw of the ball screw pair located in the second sleeve. The outer periphery of the nut of the ball screw pair is connected to the positioning wheel, and the positioning wheel is located on the inner wall of the second sleeve. The nut of the ball screw pair fixes the furnace tamping rake, and the furnace tamping rake extends and retracts as the nut of the ball screw pair moves.

6. The three-dimensional furnace tamping robot for a submerged arc furnace according to claim 3, characterized in that: The sealing baffle is arranged at the rear side of the front end of the long arm sleeve.

7. The three-dimensional furnace tamping robot for a submerged arc furnace according to claim 5, characterized in that: The axis of the ball screw pair is parallel to the axis of the tamping rake, and the center lines of the cross sections are the same center line.

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