CN119063478B - A self-consumable carbon-oxygen gun mechanical arm for steelmaking electric furnace door - Google Patents
A self-consumable carbon-oxygen gun mechanical arm for steelmaking electric furnace door Download PDFInfo
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- CN119063478B CN119063478B CN202411261096.7A CN202411261096A CN119063478B CN 119063478 B CN119063478 B CN 119063478B CN 202411261096 A CN202411261096 A CN 202411261096A CN 119063478 B CN119063478 B CN 119063478B
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- carbon
- rotating
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- CSJDCSCTVDEHRN-UHFFFAOYSA-N methane;molecular oxygen Chemical compound C.O=O CSJDCSCTVDEHRN-UHFFFAOYSA-N 0.000 title claims abstract description 75
- 238000009628 steelmaking Methods 0.000 title claims abstract description 24
- 239000007921 spray Substances 0.000 claims abstract description 88
- 238000004891 communication Methods 0.000 claims description 11
- 230000005540 biological transmission Effects 0.000 claims description 9
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 24
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 18
- 229910052760 oxygen Inorganic materials 0.000 description 18
- 239000001301 oxygen Substances 0.000 description 18
- 229910000831 Steel Inorganic materials 0.000 description 16
- 239000010959 steel Substances 0.000 description 16
- 229910052799 carbon Inorganic materials 0.000 description 9
- 238000005516 engineering process Methods 0.000 description 8
- 238000010891 electric arc Methods 0.000 description 7
- 230000001105 regulatory effect Effects 0.000 description 7
- 238000003723 Smelting Methods 0.000 description 6
- 238000007664 blowing Methods 0.000 description 6
- 238000000034 method Methods 0.000 description 6
- 239000012535 impurity Substances 0.000 description 4
- 230000003647 oxidation Effects 0.000 description 4
- 238000007254 oxidation reaction Methods 0.000 description 4
- 230000001276 controlling effect Effects 0.000 description 3
- 238000002347 injection Methods 0.000 description 3
- 239000007924 injection Substances 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 238000011084 recovery Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 238000009845 electric arc furnace steelmaking Methods 0.000 description 2
- 230000000149 penetrating effect Effects 0.000 description 2
- 238000013459 approach Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
- 238000006116 polymerization reaction Methods 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
- 238000004904 shortening Methods 0.000 description 1
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
- F27D1/00—Casings; Linings; Walls; Roofs
- F27D1/18—Door frames; Doors, lids or removable covers
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21C—PROCESSING OF PIG-IRON, e.g. REFINING, MANUFACTURE OF WROUGHT-IRON OR STEEL; TREATMENT IN MOLTEN STATE OF FERROUS ALLOYS
- C21C5/00—Manufacture of carbon-steel, e.g. plain mild steel, medium carbon steel or cast steel or stainless steel
- C21C5/52—Manufacture of steel in electric furnaces
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27B—FURNACES, KILNS, OVENS OR RETORTS IN GENERAL; OPEN SINTERING OR LIKE APPARATUS
- F27B14/00—Crucible or pot furnaces
- F27B14/08—Details specially adapted for crucible or pot furnaces
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P10/00—Technologies related to metal processing
- Y02P10/20—Recycling
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Vertical, Hearth, Or Arc Furnaces (AREA)
Abstract
The application relates to the technical field of metallurgical equipment, in particular to a self-consuming furnace door carbon-oxygen gun mechanical arm of a steelmaking electric furnace, which comprises a rotating seat, wherein a connecting supporting arm is arranged on the rotating seat, one end of the connecting supporting arm is provided with a supporting block, and at least one supporting swing arm is arranged on the supporting block, the height of the connecting supporting arm is changed through the movement of the hydraulic lifting column, meanwhile, the connecting supporting rod is driven to rotate through the driving screw rod which is driven to rotate, the rotating driving screw rod is in threaded connection with the sliding connecting rod, the sliding connecting rod extends out of the connecting supporting rod, the sliding connecting rod can drive the supporting block to move together so that the carbon-oxygen spray gun can move to the accurate positioning in the electric furnace, and therefore the accurate positioning of the carbon-oxygen spray gun is suitable for different steelmaking requirements.
Description
Technical Field
The application relates to the technical field of metallurgical equipment, in particular to a self-consumption type furnace door carbon-oxygen gun mechanical arm of a steelmaking electric furnace.
Background
In the aspects of scrap steel recovery and high-quality steel grade production, with the emphasis on sustainable development and resource recycling, the electric arc furnace steelmaking technology is favored due to the high-efficiency utilization of scrap steel and lower environmental influence, the electric arc furnace converts electric energy into heat energy, and electric arcs generated by electrodes are used for heating and melting furnace burden, so that high-quality molten steel is further extracted.
In improving the efficiency and quality of the steelmaking process of the electric arc furnace, the oxygen blowing and carbon powder injection are generally controlled accurately through a mechanical arm carbon-oxygen gun device, and the chemical reaction in the smelting process is optimized, so that the quality and the production efficiency of molten steel are improved.
In the working process, the mechanical arm accurately positions the carbon-oxygen gun to a specific area in the furnace, and oxygen and carbon powder are blown in to promote the oxidation and removal of impurities in molten steel, and simultaneously the carbon content of the molten steel is regulated by adding the carbon powder.
The mechanical arm body is responsible for accurately moving the carbon-oxygen gun to a designated position, the carbon-oxygen gun assembly is responsible for blowing oxygen and carbon powder into the furnace, the control system ensures automation and accuracy of the whole process, the control system comprises temperature monitoring, position adjustment, flow control and the like, the four-degree-of-freedom electric arc furnace door water-cooling carbon-oxygen gun mechanical arm device disclosed as CN114480782B relates to the technical field of metallurgical equipment, the prior art comprises a base, a swinging unit, a lifting unit, a cross arm and a pitching unit, the gun body is arranged on the swinging unit, the swinging unit and the lifting unit are all arranged above the base, the swinging unit is connected with the swinging unit, the lifting unit is connected with the swinging unit through the cross arm, the pitching unit is connected with the swinging unit and the gun body, the swinging unit is used for realizing left-right swinging of the gun body, the swinging unit is used for realizing advancing and retreating actions of the gun body, the pitching unit is used for realizing the pitching actions of the gun body, and the lifting unit is used for realizing the lifting actions of the gun body.
However, the prior art still has some defects when steelmaking in an electric arc furnace:
1. The prior art is connected with the rotary head through the other end of the cross arm, the movable support and the gun body are connected on the rotary head, the gun body on the movable support moves correspondingly with the rotary head along with the rotation of the cross arm, and the length of the cross arm is fixed, which means that the operation range of the manipulator is fixed, which can limit the operation flexibility of the gun body in the furnace, especially when a large area needs to be covered or a specific position is reached, and when electric arc furnaces with different sizes or shapes are used, the position of the manipulator can need to be manually adjusted or other auxiliary devices are used to adapt to different operation requirements.
2. In the prior art, the gun body is arranged on the rotary head through the movable bracket, and because the rotary head is relatively fixed, the angle between the movable bracket and the rotary head changes along with the extension and shortening of the pitching hydraulic cylinder and corresponds to the pitching action of the gun body, namely, the gun body is fixed on the rotary head, so that the extending length of the gun body on the rotary head is constant, the length of the gun body extending into the electric arc furnace cannot be changed when the gun body is operated in the electric arc furnace, and in actual application, the inserting depth of the gun body needs to be adjusted according to the change of the molten steel liquid level or a specific smelting stage, thereby influencing the optimization of the smelting process.
In some cases, a fixed length gun body may increase the risk of collision with other structures within the furnace if there is limited space within the furnace or obstructions.
Based on this, in the statement of the above point of view, the prior art approaches to electric arc furnace steelmaking still have room for improvement.
Disclosure of Invention
In order to solve the technical problems, the application provides a self-consumption type furnace door carbon-oxygen gun mechanical arm of a steelmaking electric furnace, which adopts the following technical scheme:
The self-consumption type furnace door carbon-oxygen gun mechanical arm of the steelmaking electric furnace comprises a rotating seat, wherein a connecting supporting arm is arranged on the rotating seat, one end of the connecting supporting arm is provided with a supporting block, and at least one supporting swing arm is arranged on the supporting block;
The support swing arm comprises a support rotating shaft which is rotatably arranged on the support block in a penetrating manner, a support rotating groove is formed in the lower end of the support rotating shaft, a rotating support frame is rotatably arranged in the support rotating groove, an arc gear is arranged on one side of the rotating support frame, and an adjusting gear meshed with the arc gear is rotatably arranged in the support rotating groove.
Preferably, the support swing arm further comprises a support bracket arranged at one end of the rotation support frame, a sliding groove is formed in the support bracket, and a sliding block is arranged in the sliding groove in a sliding mode.
Preferably, one end of the sliding block, which is away from the rotating support, is provided with a sliding support plate, the sliding support plate is in sliding connection with the sliding groove,
The sliding support plate is provided with a gun stock support in a sliding manner, and the gun stock support is provided with a detachable carbon-oxygen spray gun.
Preferably, the traction wheel is rotatably arranged on the rotary support frame, the guide wheel positioned at one end of the sliding groove is rotatably arranged on the rotary support frame, the traction rope is wound on the traction wheel, and one end of the traction rope is connected with the gun stock support after bypassing the guide wheel and sliding through the sliding block.
Preferably, a reset spring is arranged between one end of the sliding block, which faces the rotary support frame, and the support bracket, and a collision spring is arranged between the sliding block and the gun stock support.
Preferably, the carbon-oxygen spray gun comprises a sleeve arranged on a gun stock support, wherein one end of the sleeve is provided with a spray pipe in a sliding manner, and one end of the spray pipe penetrates through the rotating support in a sliding manner;
The novel connecting device is characterized in that one end of the sleeve is connected with a conveying pipe, a sliding connecting pipe is arranged in the sleeve in a sliding mode, a conical stop block is arranged at one end of the sliding connecting pipe, a connecting spring is arranged between the sliding connecting pipe and the sleeve, and a plurality of communication holes are formed in the sliding connecting pipe in the circumferential direction.
Preferably, a clamping sleeve is arranged in the sleeve, a plurality of clamping plates are circumferentially arranged on the clamping sleeve, and inverted teeth are arranged on opposite sides of the clamping plates;
The telescopic support is characterized in that one side of the sleeve is slidably provided with a support sleeve, the support sleeve is provided with support grooves corresponding to the clamping plates one to one, the support grooves are provided with support inclined planes, and one end of the sleeve is rotatably provided with an adjusting ring in threaded connection with the support sleeve.
Preferably, the rotating seat comprises a base, and a hydraulic lifting column is rotatably arranged in the base;
the hydraulic lifting column is provided with a driven gear, and the base is provided with a driving gear meshed with the driven gear through a motor.
Preferably, the connecting stay arm comprises a connecting stay rod arranged at the telescopic end of the hydraulic lifting column, and a sliding connecting rod is arranged in the connecting stay rod in a sliding manner;
the connecting stay bar is rotatably penetrated with a driving screw rod in threaded connection with the sliding connecting rod.
Preferably, the support rotating shaft is provided with a transmission gear, and the support block is provided with a rotating gear meshed with the transmission gear.
In summary, the present application includes at least one of the following beneficial technical effects:
1. According to the invention, the driving gear arranged on the base is driven to rotate, the rotating driving gear drives the hydraulic lifting column to rotate through meshing with the driven gear, so that the position of the connecting supporting arm is adjusted, the height of the connecting supporting arm is changed through movement of the hydraulic lifting column, the accurate positioning of the carbon-oxygen spray gun to the furnace door opening of the electric furnace is ensured, meanwhile, the rotating driving screw is driven to rotate through driving the connecting supporting rod, the rotating driving screw is in threaded connection with the sliding connecting rod, the sliding connecting rod extends out of the connecting supporting rod, the sliding connecting rod drives the supporting block to move together, so that the carbon-oxygen spray gun can move to the accurate positioning in the electric furnace, and the accurate positioning of the carbon-oxygen spray gun is suitable for different steelmaking requirements.
2. According to the invention, the gun stock support is pulled by the contracted traction rope, so that the gun stock support drives the carbon-oxygen spray gun detachably arranged on the gun stock support, the moving gun stock support can compress the abutting spring arranged between the sliding block and the gun stock support, the sliding block can drive the sliding supporting plate to move together, the reset spring arranged between one end of the sliding block, which faces the rotating supporting frame, and the supporting bracket is compressed, so that the carbon-oxygen spray gun moves inwards, the contracted length of the traction rope determines the depth of the carbon-oxygen spray gun extending into the electric furnace, and the position of the carbon-oxygen spray gun in the electric furnace can be accurately controlled by accurately controlling the recovery length of the traction rope.
3. According to the carbon-oxygen spray gun, the rotating adjusting ring is connected through the threads to enable the abutting sleeve to move outwards of the sleeve, the abutting groove is used for clamping the plate, the clamping plate can loosen abutting of the spray pipe, the spray pipe is pulled out of the sleeve, then a new spray pipe passes through the rotating support and the abutting sleeve which is arranged on one side of the sleeve in a sliding mode, one side of the spray pipe abuts against the sliding connecting pipe which is arranged in the sleeve in a sliding mode, and at the moment, the sliding connecting pipe is communicated with the spray pipe. Through rotating sheathed tube one end and rotating the adjusting ring that sets up, make to support tight cover to intraductal removal of cover, support tight inclined plane of support of seting up on the tight groove this moment and can contradict the grip block, make a plurality of grip blocks warp inwards polymerization, let the back tooth pressure that sets up on the grip block on the spray tube, realize the quick change to the spray tube.
Drawings
Fig. 1 is a schematic structural view of the present invention.
Fig. 2 is a schematic view of the structure of the support swing arm of the present invention.
Fig. 3 is a schematic view of a part of the structure of the support swing arm of the present invention.
Fig. 4 is a cross-sectional view of a support swing arm of the present invention.
Fig. 5 is an enlarged view of a portion of fig. 4a of the present invention.
FIG. 6 is a schematic view of the structure of the carbon oxygen lance of the present invention.
FIG. 7 is a cross-sectional view of a carbon oxygen lance of the present invention.
FIG. 8 is a schematic view of a part of the structure of the carbon-oxygen determining spray gun of the present invention.
Fig. 9 is a schematic view of the structure of the fixed rotating seat of the present invention.
Fig. 10 is a schematic view of the structure of the connecting arm of the present invention.
The reference numerals are 1, a rotating seat, 11, a base, 12, a hydraulic lifting column, 13, a driven gear, 14, a driving gear, 2, a connecting supporting arm, 21, a connecting supporting rod, 22, a sliding connecting rod, 23, a driving screw, 3, a supporting block, 31, a transmission gear, 32, a rotating gear, 4, a supporting swinging arm, 41, a supporting rotating shaft, 42, a supporting rotating groove, 43, a rotating supporting frame, 44, an arc gear, 441, an adjusting gear, 45, a supporting bracket, 451, a sliding groove, 46, a sliding block, 461, a sliding supporting plate, 47, a gun support, 48, a traction wheel, 481, a guiding wheel, 482, a traction rope, 49, a reset spring, 491, an abutting spring, 5, a carbon oxygen spray gun, 51, a sleeve, 52, a spray pipe, 53, a conveying pipe, 54, a sliding connecting pipe, 541, a conical stop, 542, a communication hole, 55, a connecting spring, 56, a clamping sleeve 561, a clamping plate, 562, a pawl, 57, a tight sleeve, 571, a tight groove, 58, a tight sleeve, 59, a tight sleeve, and a tight adjusting ring.
Detailed Description
The present application is described in further detail below with reference to fig. 1 to 10.
The embodiment of the application discloses a self-consumption type furnace door carbon-oxygen gun mechanical arm of a steelmaking furnace, which enables a carbon-oxygen gun to be accurately positioned at a furnace gate through a mechanical arm structure, then the operation is performed by changing the angle of the carbon-oxygen gun, and meanwhile, the carbon-oxygen gun can be replaced, so that the smelting effect is optimized, and the efficiency is improved.
Examples:
Referring to fig. 1 and 2, a self-consuming furnace door carbon-oxygen gun mechanical arm of a steelmaking electric furnace comprises a rotating seat 1, wherein a connecting supporting arm 2 is arranged on the rotating seat 1.
In the steelmaking process, the connecting supporting arm 2 is driven to rise to the corresponding height of the electric furnace through the rotating seat 1, the connecting supporting arm 2 is driven to rotate, the supporting block 3 arranged at one end of the connecting supporting arm 2 is driven by the connecting supporting arm 2 to rotate around the rotating seat 1 together, the detachable carbon-oxygen spray gun 5 arranged on the supporting swing arm 4 is accurately positioned at a furnace gate of the electric furnace through the supporting swing arm 4, then at least one supporting swing arm 4 arranged on the supporting block 3 can send the carbon-oxygen spray gun 5 into a specific area (two supporting swing arms 4 are symmetrically arranged in the figure), oxygen and carbon powder are blown in through the carbon-oxygen spray gun 5, the oxidation and removal of impurities in molten steel are promoted, meanwhile, the carbon content of the molten steel is regulated through the addition of carbon powder, the smelting speed is accelerated, and the purity and the uniformity of the molten steel are improved.
Simultaneously, support swing arm 4 can carry out the regulation of different angles to and swing and make carbon oxygen spray gun 5 blow in oxygen and carbon dust in the electric stove with different angles for carbon oxygen spray gun 5 can adapt to different smelting demands and in-furnace condition, and in addition support swing arm 4 can also send into the different degree of depth in the electric stove with carbon oxygen spray gun 5, in order to realize blowing oxygen and adding the carbon to the molten steel different levels.
Referring to fig. 2, 3, 4 and 5, specifically, the support swing arm 4 includes a support shaft 41 rotatably penetrating the support block 3, a support rotation groove 42 is formed at the lower end of the support shaft 41, a rotation bracket 43 is rotatably disposed in the support rotation groove 42, and an arc gear 44 is disposed on one side of the rotation bracket 43.
After the support swing arm 4 accurately positions the carbon-oxygen spray gun 5 at the furnace door of the electric furnace, the existing motor driving technology drives the regulating gear 441 which is rotationally arranged in the support rotary groove 42 to rotate, the rotating regulating gear 441 drives the rotary support frame 43 to rotate in the support rotary groove 42 through meshing with the arc gear 44, and the rotary support frame 43 drives the support bracket 45 which is arranged at one end of the rotary support frame to rotate together, so that the angle of the carbon-oxygen spray gun 5 is regulated.
Wherein, the support bracket 45 is provided with a sliding groove 451, a sliding block 46 is arranged in the sliding groove 451 in a sliding way, one end of the sliding block 46, which is away from the rotating support frame 43, is provided with a sliding support plate 461, the sliding support plate 461 is connected with the sliding groove 451 in a sliding way, the sliding support plate 461 is provided with a gun stock bracket 47 in a sliding way, and the rotating support frame 43 is provided with a guide wheel 481 positioned at one end of the sliding groove 451 in a rotating way.
After the angle adjustment of the carbon-oxygen spray gun 5 is completed, the rotating bracket 43 is driven to rotate by the existing motor driving technology to be provided with the traction wheel 48, the traction rope 482 wound on the traction wheel 48 is continuously recovered by the rotating traction wheel 48, the traction rope 482 winds around the guide wheel 481 and winds around the traction wheel 48, and the guide wheel 481 rotates under the action of friction force.
One end of the traction rope 482 passes through the guide wheel 481 and then slides through the sliding block 46 to be connected with the gunstock support 47, and the contracted traction rope 482 pulls the gunstock support 47 to drive the carbon oxygen spray gun 5 detachably arranged on the gunstock support 47 by the gunstock support 47, so that the spray gun moves into the electric furnace.
Referring to fig. 4 and 5, at the same time, the moving butt support 47 compresses the abutting spring 491 between the sliding block 46 and the butt support 47, so that the abutting spring 491 pushes the sliding block 46 to move together, at this time, the sliding block 46 drives the sliding support plate 461 to move together, and compresses the return spring 49 arranged between one end of the sliding block 46 facing the rotating support 43 and the support bracket 45, so that the carbon-oxygen spray gun 5 moves into the electric furnace, the contracted length of the traction rope 482 determines the depth of the carbon-oxygen spray gun 5 extending into the electric furnace, and the position of the carbon-oxygen spray gun 5 in the electric furnace can be precisely controlled by precisely controlling the recovered length of the traction rope 482.
After the oxygen blowing and carbon adding of the carbon-oxygen spray gun 5 is completed, the traction wheel 48 is driven to rotate reversely through the existing motor driving technology, the traction rope 482 is released by the rotating traction wheel 48, the reset spring 49 and the abutting spring 491 compressed along with the release of the traction rope 482 can be released gradually at any time when the traction rope 482 is released, the reset spring 49 can push the sliding block 46, the sliding block 46 drives the sliding supporting plate 461 to move, the abutting spring 491 can push the gun stock support 47 to move on the sliding supporting plate 461, so that the gun stock support 47 drives the carbon-oxygen spray gun 5 to retract from the electric furnace until the carbon-oxygen spray gun 5 is completely retracted, and the reset spring 49 and the abutting spring 491 are released, so that the gun stock support 47 is restored to the initial state, and at the moment, the rotation of the traction wheel 48 is stopped.
Referring to fig. 6, 7 and 8, specifically, the carbon-oxygen spray gun 5 includes a sleeve 51 disposed on a gun stock support 47, a detachable spray pipe 52 is slidably disposed at one end of the sleeve 51, a conveying pipe 53 is connected at one end of the sleeve 51, one end of the spray pipe 52 slidably penetrates through the rotating support 43, the spray pipe 52 is used for extending into the electric furnace to spray oxygen and carbon powder into the electric furnace, so as to realize accurate oxygen blowing and carbon adding, and since the high-temperature spray pipe 52 in the electric furnace is easy to damage, the detachable spray pipe 52 is designed to greatly simplify the maintenance process, so that the spray pipe 52 can be quickly replaced when damaged, and the influence on production is reduced.
When the nozzle 52 is mounted, the nozzle 52 is first passed through the rotating bracket 43 and the abutting sleeve 57 slidably disposed on one side of the sleeve 51, so that one side of the nozzle 52 abuts against the sliding connecting tube 54 slidably disposed on the sleeve 51, and the sliding connecting tube 54 is communicated with the nozzle 52.
Then, the nozzle 52 is pushed to move the sliding connecting tube 54 to the side of the conveying tube 53, the sliding connecting tube 54 drives the tapered stop 541 arranged at one end of the sliding connecting tube 54 to move together, and the connecting spring 55 arranged between the sliding connecting tube 54 and the sleeve 51 is compressed, so that one end of the sliding connecting tube 54 enters the conveying tube 53, and at this time, a plurality of communication holes 542 circumferentially arranged on the sliding connecting tube 54 communicate the conveying tube 53 with the sliding connecting tube 54.
Wherein, the sleeve 51 is provided with a clamping sleeve 56, a plurality of clamping plates 561 are uniformly arranged on the clamping sleeve 56 in the circumferential direction, inverted teeth 562 are arranged on opposite sides of the clamping plates 561, and the abutting sleeve 57 is provided with abutting grooves 571 corresponding to the clamping plates 561 one by one.
Then, by rotating the adjusting ring 59 rotatably disposed at one end of the sleeve 51, the adjusting ring 59 is screwed with the abutting sleeve 57, so that the abutting sleeve 57 moves toward the sleeve 51, and at this time, the abutting inclined surface 58 disposed on the abutting groove 571 abuts against the clamping plates 561, so that the plurality of clamping plates 561 are deformed and polymerized inwards, and the inverted teeth 562 disposed on the clamping plates 561 are pressed against the nozzle 52, thereby ensuring the communication between the conveying pipe 53 and the sliding connecting pipe 54 as well as the nozzle 52.
When the traction wheel 48 rotates to retract the traction rope 482, the gun stock support 47 drives the sleeve 51 and the conveying pipe 53 to move together, so that one end of the spray pipe 52 gradually extends out of the rotary support 43 along with the transverse movement of the traction rope 482.
When oxygen and carbon powder are blown into the electric furnace, the conveying pipe 53 guides the oxygen and the carbon powder through the conical surface of the conical stop 541, then the oxygen and the carbon powder are conveyed into the sliding connecting pipe 54 through the holes, then the oxygen and the carbon powder enter the spray pipe 52 from the sliding connecting pipe 54 and are sprayed out from one end of the spray pipe 52 into the electric furnace, so that the oxidation and the removal of impurities in molten steel are promoted, and the carbon content of the molten steel is regulated.
When the spray pipe 52 is disassembled, the adjusting ring 59 is rotated, the rotating adjusting ring 59 moves the abutting sleeve 57 to the outside of the sleeve 51 through threaded connection, the abutting groove 571 is used for clamping the plate 561, the clamping plate 561 can loosen the abutting of the spray pipe 52, the spray pipe 52 is pulled out of the sleeve 51, the compressed connecting spring 55 pushes the sliding connecting pipe 54 at the moment, the sliding connecting pipe 54 drives the communication hole 542 and the conical stop 541 to enter the sleeve 51, and the conical stop 541 can block the sleeve 51 and prevent the communication between the sliding connecting pipe 54 and the conveying pipe 53.
Referring to fig. 9 and 10, specifically, the rotary base 1 includes a base 11, a hydraulic lifting column 12 is rotatably provided in the base 11, and a driven gear 13 is provided on the hydraulic lifting column 12.
In the steelmaking process, the motor drives the driving gear 14 arranged on the base 11 to rotate, and the rotating driving gear 14 drives the hydraulic lifting column 12 to rotate through meshing with the driven gear 13, so that the position of the connecting supporting arm 2 is adjusted.
The height of the connecting stay arm 2 is changed by the movement of the hydraulic lifting column 12, so that the carbon-oxygen spray gun 5 can be accurately positioned at the furnace gate of the electric furnace.
Meanwhile, the connecting stay arm 2 comprises a connecting stay bar 21 arranged at the telescopic end of the hydraulic lifting column 12, a sliding connecting rod 22 is arranged in the connecting stay bar 21 in a sliding mode, and the supporting block 3 is arranged at one end of the sliding connecting rod 22. The connecting stay bar 21 can drive the sliding connecting rod 22 to ascend and rotate to the corresponding height of the electric furnace along with the rotating seat 1.
The drive screw 23 which is rotatably arranged on the connecting stay bar 21 is driven to rotate by the existing motor drive technology, the rotating drive screw 23 is in threaded connection with the sliding connecting rod 22, the sliding connecting rod 22 extends outwards from the connecting stay bar 21, the sliding connecting rod 22 drives the supporting block 3 to move together so that the carbon-oxygen spray gun 5 can move to the accurate positioning in the electric furnace, and the accurate positioning of the carbon-oxygen spray gun is suitable for different steelmaking requirements.
Wherein, be provided with drive gear 31 on the support pivot 41, drive the rotation gear 32 that sets up on the supporting shoe 3 through current motor drive technique and rotate, the drive gear 31 of pivoted can drive support pivot 41 rotation through the meshing with drive gear 31, drive the rotation strut 43 rotation through support pivot 41 to change the horizontally injection angle of carbon oxygen spray gun 5.
Meanwhile, two supporting swing arms 4 are symmetrically arranged in the figure, the rotating gears 32 are arranged on opposite sides of the two transmission gears 31 and meshed with each other, one of the rotating gears 32 is driven to rotate by the existing motor driving technology, the rotating gear 32 drives the other rotating gear 32 to rotate together by meshing, and the two rotating gears 32 drive the transmission gears 31 on two sides to rotate at the same time so as to drive the supporting rotating shaft 41 to rotate.
The two driving gears 31 drive the two supporting shafts 41 to rotate reversely, so that the two supporting shafts 41 rotate to opposite sides or opposite sides simultaneously.
The implementation principle of the invention is as follows:
(1) In the steelmaking process, the driving gear 14 arranged on the base 11 is driven to rotate, the rotating driving gear 14 drives the hydraulic lifting column 12 to rotate through meshing with the driven gear 13, so that the position of the connecting supporting arm 2 is adjusted, the height of the connecting supporting arm 2 is changed through movement of the hydraulic lifting column 12, and the carbon-oxygen spray gun 5 is ensured to be accurately positioned at the furnace mouth of the electric furnace.
(2) The driving screw 23 which is rotatably arranged on the connecting stay bar 21 is driven to rotate, the rotating driving screw 23 is in threaded connection with the sliding connecting rod 22, so that the sliding connecting rod 22 extends outwards from the connecting stay bar 21, and the sliding connecting rod 22 drives the supporting block 3 to move together, so that the carbon-oxygen spray gun 5 can move to the accurate positioning in the electric furnace, and the accurate positioning of the carbon-oxygen spray gun is realized to adapt to different steelmaking requirements.
(3) The rotating transmission gear 31 drives the supporting rotating shaft 41 to rotate through the meshing of the transmission gear 31, and the supporting rotating shaft 41 drives the rotating bracket 43 to rotate, so that the horizontal injection angle of the carbon-oxygen spray gun 5 is changed.
(4) By driving the adjusting gear 441 to rotate, the rotating adjusting gear 441 is meshed with the arc gear 44, so that the arc gear 44 drives the rotating bracket 43 to rotate in the supporting rotating groove 42, and the rotating bracket 43 drives the supporting bracket 45 arranged at one end of the rotating bracket to rotate together, thereby adjusting the angle of the carbon-oxygen spray gun 5.
(5) After the angle adjustment of the carbon-oxygen spray gun 5 is completed, the rotating bracket 43 is driven to rotate by the existing motor driving technology to be provided with the traction wheel 48, the traction rope 482 wound on the traction wheel 48 can be continuously recovered by the rotating traction wheel 48, and the contracted traction rope 482 can pull the gun stock support 47, so that the gun stock support 47 drives the carbon-oxygen spray gun 5 detachably arranged on the gun stock support 47, and the spray gun moves into the electric furnace.
(6) Meanwhile, the moving gun stock support 47 compresses the abutting springs 491 arranged between the sliding block 46 and the gun stock support 47, the sliding block 46 drives the sliding supporting plate 461 to move together, and compresses the reset springs 49 arranged between one end of the sliding block 46, which faces the rotating supporting frame 43, and the supporting bracket 45, so that the carbon-oxygen spray gun 5 moves into the electric furnace, the contracted length of the traction rope 482 determines the depth of the carbon-oxygen spray gun 5 extending into the electric furnace, and the position of the carbon-oxygen spray gun 5 in the electric furnace can be precisely controlled by precisely controlling the recovery length of the traction rope 482.
(7) When oxygen and carbon powder are blown into the electric furnace, the conveying pipe 53 guides the oxygen and the carbon powder through the conical surface of the conical stop 541, then the oxygen and the carbon powder are conveyed into the sliding connecting pipe 54 through the holes, then the oxygen and the carbon powder enter the spray pipe 52 from the sliding connecting pipe 54 and are sprayed out from one end of the spray pipe 52 into the electric furnace, so that the oxidation and the removal of impurities in molten steel are promoted, and the carbon content of the molten steel is regulated.
(8) After the oxygen blowing and the carbon adding of the carbon-oxygen spray gun 5 are completed, the traction wheel 48 is driven to rotate reversely through the existing motor driving technology, the traction rope 482 is released by the rotating traction wheel 48, the sliding block 46 is pushed by the reset spring 49, the sliding block 46 drives the sliding supporting plate 461 to move, the gun stock support 47 is pushed by the abutting spring 491 to move on the sliding supporting plate 461, so that the gun stock support 47 drives the carbon-oxygen spray gun 5 to retract from the electric furnace until the carbon-oxygen spray gun 5 is completely retracted to an initial state, and at the moment, the traction wheel 48 stops being driven to rotate.
(9) When the spray pipe 52 is replaced, the original spray pipe 52 is detached firstly, at the moment, the adjusting ring 59 is rotated firstly, the rotating adjusting ring 59 enables the abutting sleeve 57 to move outwards of the sleeve 51 through threaded connection, the abutting groove 571 is enabled to convey the clamping plate 561, the clamping plate 561 can loosen the abutting of the spray pipe 52, the spray pipe 52 is pulled out of the sleeve 51, at the moment, the compressed connecting spring 55 can push the sliding connecting pipe 54, the sliding connecting pipe 54 drives the communication hole 542 and the conical baffle 541 to enter the sleeve 51, at the moment, the conical baffle 541 can seal the sleeve 51, and the communication between the sliding connecting pipe 54 and the conveying pipe 53 is blocked.
(10) When a new spray pipe 52 is installed, the spray pipe 52 passes through the rotating support 43 and the abutting sleeve 57 which is arranged on one side of the sleeve 51 in a sliding way, so that one side of the spray pipe 52 abuts against the sliding connecting pipe 54 which is arranged on the sleeve 51 in a sliding way, and the sliding connecting pipe 54 is communicated with the spray pipe 52.
(11) Then the spray pipe 52 is pushed to move the sliding connecting pipe 54 to the side of the conveying pipe 53, the sliding connecting pipe 54 is driven to move together with a conical stop 541 arranged at one end of the sliding connecting pipe 54, and a connecting spring 55 arranged between the sliding connecting pipe 54 and the sleeve 51 is compressed to enable one end of the sliding connecting pipe 54 to enter the conveying pipe 53, and at the moment, a plurality of communication holes 542 circumferentially arranged on the sliding connecting pipe 54 are communicated with the conveying pipe 53 and the sliding connecting pipe 54.
(12) Then, by rotating the adjusting ring 59 rotatably arranged at one end of the sleeve 51, the adjusting ring 59 is connected with the abutting sleeve 57 through threads, so that the abutting sleeve 57 moves inwards of the sleeve 51, at the moment, the abutting inclined surfaces 58 arranged on the abutting grooves 571 abut against the clamping plates 561, the clamping plates 561 are deformed and inwardly polymerized, the inverted teeth 562 arranged on the clamping plates 561 are pressed on the spray pipe 52, and the communication between the conveying pipe 53 and the sliding connecting pipe 54 as well as the spray pipe 52 is ensured.
The embodiments of the present invention are all preferred embodiments of the present invention, and are not limited in scope by the present invention, so that all equivalent changes according to the structure, shape and principle of the present invention are covered by the scope of the present invention.
Claims (7)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202411261096.7A CN119063478B (en) | 2024-09-10 | 2024-09-10 | A self-consumable carbon-oxygen gun mechanical arm for steelmaking electric furnace door |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202411261096.7A CN119063478B (en) | 2024-09-10 | 2024-09-10 | A self-consumable carbon-oxygen gun mechanical arm for steelmaking electric furnace door |
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| CN119063478A CN119063478A (en) | 2024-12-03 |
| CN119063478B true CN119063478B (en) | 2025-03-25 |
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| CN202411261096.7A Active CN119063478B (en) | 2024-09-10 | 2024-09-10 | A self-consumable carbon-oxygen gun mechanical arm for steelmaking electric furnace door |
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Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201144252Y (en) * | 2007-12-28 | 2008-11-05 | 钢铁研究总院 | Multi-degree-of-freedom furnace door carbon oxygen gun manipulator for electric furnace |
| CN114480782A (en) * | 2021-12-31 | 2022-05-13 | 钢铁研究总院 | Four-degree-of-freedom electric arc furnace door water-cooling carbon-oxygen gun manipulator device |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100515519B1 (en) * | 2000-11-09 | 2005-09-16 | 주식회사 포스코 | Ladle cleaning apparatus |
| CN201402054Y (en) * | 2009-04-02 | 2010-02-10 | 济南盛达冶金科技有限公司 | Consumable furnace gate carbon-oxygen lance manipulator |
| CN203021598U (en) * | 2012-12-28 | 2013-06-26 | 钢铁研究总院 | Furnace door rotating body spray gun for electrical arc steel-smelting furnace |
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2024
- 2024-09-10 CN CN202411261096.7A patent/CN119063478B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201144252Y (en) * | 2007-12-28 | 2008-11-05 | 钢铁研究总院 | Multi-degree-of-freedom furnace door carbon oxygen gun manipulator for electric furnace |
| CN114480782A (en) * | 2021-12-31 | 2022-05-13 | 钢铁研究总院 | Four-degree-of-freedom electric arc furnace door water-cooling carbon-oxygen gun manipulator device |
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| CN119063478A (en) | 2024-12-03 |
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