CN116814897B - Integrated trolley for feeding slag blocking rod for cleaning slag hanging at furnace mouth of steelmaking furnace and use method thereof - Google Patents
Integrated trolley for feeding slag blocking rod for cleaning slag hanging at furnace mouth of steelmaking furnace and use method thereof Download PDFInfo
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- CN116814897B CN116814897B CN202310846732.1A CN202310846732A CN116814897B CN 116814897 B CN116814897 B CN 116814897B CN 202310846732 A CN202310846732 A CN 202310846732A CN 116814897 B CN116814897 B CN 116814897B
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- slag
- oxygen
- oxygen lance
- oil cylinder
- assembly
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- 239000002893 slag Substances 0.000 title claims abstract description 128
- 238000009628 steelmaking Methods 0.000 title claims abstract description 31
- 238000004140 cleaning Methods 0.000 title claims abstract description 21
- 238000000034 method Methods 0.000 title claims abstract description 20
- 230000000903 blocking effect Effects 0.000 title claims abstract description 18
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims abstract description 231
- 239000001301 oxygen Substances 0.000 claims abstract description 231
- 229910052760 oxygen Inorganic materials 0.000 claims abstract description 231
- 238000007789 sealing Methods 0.000 claims abstract description 18
- 239000010959 steel Substances 0.000 claims abstract description 14
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 13
- 238000007664 blowing Methods 0.000 claims description 24
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims description 23
- 239000007789 gas Substances 0.000 claims description 15
- 229910052757 nitrogen Inorganic materials 0.000 claims description 11
- 230000008569 process Effects 0.000 claims description 11
- 238000009413 insulation Methods 0.000 claims description 9
- 230000008878 coupling Effects 0.000 claims description 4
- 238000010168 coupling process Methods 0.000 claims description 4
- 238000005859 coupling reaction Methods 0.000 claims description 4
- 230000009467 reduction Effects 0.000 claims description 2
- 210000005056 cell body Anatomy 0.000 claims 2
- 239000007787 solid Substances 0.000 claims 2
- 230000000694 effects Effects 0.000 claims 1
- 238000004519 manufacturing process Methods 0.000 abstract description 7
- 230000001360 synchronised effect Effects 0.000 abstract description 4
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 6
- 238000007790 scraping Methods 0.000 description 5
- 239000000428 dust Substances 0.000 description 3
- 229910052742 iron Inorganic materials 0.000 description 3
- 239000000725 suspension Substances 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 229910000851 Alloy steel Inorganic materials 0.000 description 1
- 229910001021 Ferroalloy Inorganic materials 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000003749 cleanliness Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 229910001873 dinitrogen Inorganic materials 0.000 description 1
- 238000007667 floating Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
Classifications
-
- 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
- C21C5/28—Manufacture of steel in the converter
- C21C5/42—Constructional features of converters
- C21C5/46—Details or accessories
- C21C5/4693—Skull removal; Cleaning of the converter mouth
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B9/00—Cleaning hollow articles by methods or apparatus specially adapted thereto
- B08B9/02—Cleaning pipes or tubes or systems of pipes or tubes
- B08B9/027—Cleaning the internal surfaces; Removal of blockages
- B08B9/04—Cleaning the internal surfaces; Removal of blockages using cleaning devices introduced into and moved along the pipes
- B08B9/043—Cleaning the internal surfaces; Removal of blockages using cleaning devices introduced into and moved along the pipes moved by externally powered mechanical linkage, e.g. pushed or drawn through the pipes
- B08B9/0436—Cleaning the internal surfaces; Removal of blockages using cleaning devices introduced into and moved along the pipes moved by externally powered mechanical linkage, e.g. pushed or drawn through the pipes provided with mechanical cleaning tools, e.g. scrapers, with or without additional fluid jets
-
- 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
- C21C5/28—Manufacture of steel in the converter
- C21C5/42—Constructional features of converters
- C21C5/46—Details or accessories
- C21C5/4606—Lances or injectors
-
- 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)
- Manufacturing & Machinery (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Mechanical Engineering (AREA)
- Carbon Steel Or Casting Steel Manufacturing (AREA)
Abstract
The invention discloses a slag blocking rod throwing integrated trolley for cleaning slag hanging at a furnace mouth of a steelmaking furnace and a use method thereof, and relates to the field of slag hanging cleaning. The invention comprises a vehicle body, a slag blocking rod throwing component, an oxygen lance component and a sealing component; be provided with swivel bearing on the automobile body, the subassembly is put in to the pushing off slag stick and the oxygen rifle subassembly all sets up on swivel bearing, be provided with seal assembly between pushing off slag stick and the oxygen rifle subassembly, through putting off slag stick and put in subassembly and the oxygen rifle subassembly setting on integrative dolly, and pushing off slag stick and put in subassembly and oxygen rifle subassembly with the same under, can be basically synchronous, after the oxygen rifle converting is accomplished, can be ready to carry out pushing off slag stick put in, ensures the security and the quality of molten steel of production.
Description
Technical Field
The invention relates to the field of slag-hanging cleaning, in particular to a slag-stopping rod throwing integrated trolley for cleaning slag at a furnace mouth of a steelmaking furnace and a use method thereof.
Background
The converter steelmaking uses molten iron, scrap steel and ferroalloy as main raw materials, does not use external energy, and utilizes the physical heat of molten iron and chemical reaction between molten iron components to generate heat so as to complete the steelmaking process in the converter.
In order to prevent the floating steel slag from flowing into the molten steel during pouring of the molten steel after steelmaking in the converter, a slag stopper rod needs to be put in a steel outlet of the converter.
The utility model discloses a "suspension type slag bar throwing device" of publication No. CN102676731B, including cantilever beam tilting device, slag bar clamping device, can be between the system and be used for cooling cantilever beam tilting device, can be between the system and on-vehicle hydraulic pressure station establish on rotary platform, rotary platform establish on suspension platform, with hang the relative rotation between the platform, suspension platform establishes on the walking platform, is equipped with walking drive arrangement on the walking platform, under walking drive arrangement's drive, drives and hangs the platform and remove, on-vehicle hydraulic pressure station is used for driving cantilever beam tilting device and slag bar clamping device action.
The prior slag blocking rod throwing device has the following problems:
1. before the slag bar is put in, a link of oxygen blowing is needed, and when the blowing link is finished, the putting work of the slag bar is difficult to prepare, so that the safety in the steelmaking process is lower, and the quality of molten steel is lower;
2. in the oxygen blowing process, when oxygen is blown out from the nozzle, the gas is uniformly sprayed out, the quantity and the speed of the gas are slower, and the steelmaking efficiency and quality are lower when steelmaking is just started.
Disclosure of Invention
The invention aims to provide a slag bar throwing integrated trolley for cleaning slag hanging at a furnace mouth of a steelmaking furnace and a use method thereof, and provides the slag bar throwing integrated trolley capable of improving molten steel quality and steelmaking safety.
The invention relates to a slag-stopping rod throwing integrated trolley for cleaning slag hanging at a furnace mouth of a steelmaking furnace, which comprises a trolley body, a slag-stopping rod throwing assembly, an oxygen lance assembly and a sealing assembly;
the slag blocking rod throwing assembly and the oxygen lance assembly are arranged on the rotary bearing, and a sealing assembly is arranged between the slag blocking rod throwing assembly and the oxygen lance assembly;
the rotary bearing can rotate, and a driving structure is arranged in the vehicle body and can drive the rotary bearing to rotate;
the slag bar throwing component and the oxygen lance component are arranged on the integrated trolley, and the slag bar throwing component and the oxygen lance component are arranged on the same upper side and the same lower side, so that the slag bar throwing component and the oxygen lance component can be basically synchronous, and after the blowing of the oxygen lance is finished, the throwing of the slag bar can be prepared.
The slag blocking rod throwing assembly comprises a slag rod clamping oil cylinder, a piston rod, a shell, a clamping block and a heat insulation plate, wherein the piston rod is arranged on the slag rod clamping oil cylinder, one end, away from the slag rod clamping oil cylinder, of the piston rod is connected with the clamping block, the piston rod is arranged inside the shell, and the heat insulation plate is arranged on the clamping block;
the slag bar clamping oil cylinder is clamped at the stage of oxygen blowing, the slag blocking bar is clamped between the clamping block and the shell, the heat insulation plate can insulate temperature, and the slag bar clamping oil cylinder is loosened at the stage of feeding the slag blocking bar to drive the piston rod to move.
The oxygen lance assembly comprises a gear motor, a coupler, a rotary joint, an oxygen pipe, an oxygen valve, a nitrogen valve and an oxygen lance nozzle, wherein the rotary joint is arranged at one end of the oxygen pipe, the oxygen lance nozzle is movably arranged at the other end of the oxygen pipe, an inner shaft is arranged in the oxygen pipe and is connected with the coupler through the rotary joint, one end, far away from the rotary joint, of the inner shaft is connected with the oxygen lance nozzle, the output end of the gear motor is connected onto the coupler, the oxygen valve and the nitrogen valve are arranged on the oxygen pipe, and the oxygen valve and the nitrogen valve are distributed in a straight line array at equal intervals;
wherein, gear motor provides rotational force, can drive the oxygen rifle shower nozzle rotatory through the interior axle of oxygen pipe, and is different with traditional oxygen converting, traditional oxygen converting drives the whole rotation of oxygen pipe, and the oxygen rifle shower nozzle is fixed on the oxygen pipe, carries oxygen through the oxygen valve, carries nitrogen gas through the nitrogen valve.
The sealing assembly comprises a connecting rod, an air bag, a fixed ring, a movable block and a scraping plate, wherein the connecting rod is connected to the piston rod, the air bag is installed on the oxygen pipe, the inside of the air bag is communicated with the inside of the oxygen pipe, the fixed ring is installed on the air bag and is positioned on the inner wall of the oxygen pipe, the fixed ring is hollow, the movable block is movably arranged in the center of the fixed ring, one end, far away from the piston rod, of the connecting rod is connected to the movable block, and the scraping plate is arranged on the connecting rod;
the air bag can store air well, the connecting rod moves through the piston rod, the connecting rod can drive the movable block to move, an annular gap is reserved in the middle of the fixed ring, the movable block is an object identical to the annular gap, and the gap of the fixed ring can be sealed.
The oxygen pipe is characterized in that an adjusting component is arranged inside the oxygen pipe and comprises a filter screen, a fan-shaped piece, a half gear and a half toothed ring, the filter screen is arranged inside the oxygen pipe and is close to an oxygen lance nozzle, the half gear is connected to an inner shaft, the half toothed ring is meshed with the half gear, the fan-shaped piece is connected to the half gear, the edge of the fan-shaped piece is movably matched with the inner wall of the oxygen pipe, and a fan-shaped notch is formed in the fan-shaped piece.
The vehicle body comprises a vehicle body, a driving wheel set and a driven wheel set, and the driving wheel set and the driven wheel set are arranged on the vehicle body;
wherein, the driving wheel group provides driving force.
The sealing assembly further comprises a positioning part, the positioning part comprises a fixing sheet, a movable column and springs, the fixing sheet is connected to the movable block, the fixing sheet is arranged on the movable block, a plurality of groove bodies are arranged on the fixing ring, a movable column and a spring are arranged in each groove body, each spring is sleeved on each movable column, and each movable column is connected to the fixing ring.
The rotary bearing is provided with a rotating part, the rotating part is provided with an oxygen lance up-and-down swinging oil cylinder, the oxygen lance up-and-down swinging oil cylinder is connected to a gear motor, the rotary bearing is also provided with an oxygen lance telescopic oil cylinder, and the oxygen lance telescopic oil cylinder is connected to an oxygen pipe.
The application method of the integrated trolley for feeding the slag blocking rod for cleaning the slag hanging at the furnace mouth of the steelmaking furnace comprises the following steps:
s1, preparing;
the driving wheel set and the driven wheel set are arranged on the car body to convey the slag blocking rod throwing component and the oxygen lance component to a steelmaking furnace;
s2, converting by an oxygen lance;
in the converter steelmaking process, an oxygen lance component is improved by driving an oxygen lance telescopic oil cylinder and an oxygen lance up-down swinging oil cylinder, driving an inner shaft to rotate by providing driving force through a gear motor, and the inner shaft drives an oxygen lance nozzle to rotate, so that the oxygen lance is rotated in the converter converting process;
s3, gas regulation;
the speed reducing motor provides driving force to drive the inner shaft to rotate, the inner shaft drives the half gear to rotate in the process of driving the oxygen gun nozzle to rotate, when the half gear rotates to be meshed with the half gear ring, the half gear ring is driven to rotate for a certain distance, namely the fan-shaped piece is driven to rotate for a certain distance, the fan-shaped notch rotates for a certain distance, and as the fan-shaped piece blocks the oxygen pipe, only the fan-shaped notch is reserved for conveying oxygen, and the position of the fan-shaped notch is changed to adjust the main flow direction of the gas;
s4, putting slag bars;
the slag bar throwing component is improved by driving the oxygen lance telescopic oil cylinder and the oxygen lance up-down swinging oil cylinder, the slag bar throwing component is improved to the converter height, the slag bar clamping oil cylinder is loosened, and the slag bar is thrown;
s5, sealing an oxygen pipe;
when the slag rod is put in, the slag rod clamping oil cylinder is loosened, at the moment, the blowing of the oxygen lance is stopped, the slag rod clamping oil cylinder moves towards the oxygen lance nozzle to drive the connecting rod and the movable block on the connecting rod to move to the notch in the middle of the fixed ring, and the fixed ring is closed, namely the oxygen pipe is sealed;
s6, ending;
the trolley is moved out of the converter range.
The invention has the following beneficial effects:
1. according to the invention, the slag bar throwing component and the oxygen lance component are arranged on the integrated trolley, and the slag bar throwing component and the oxygen lance component are synchronous with each other, so that the slag bar throwing can be ready to be thrown after the blowing of the oxygen lance is finished, and the safety of production and the quality of molten steel are ensured.
2. According to the invention, the slag bar clamping oil cylinder is clamped in the stage of oxygen blowing, the slag bar is clamped between the clamping block and the shell, and in the stage of feeding the slag bar, the slag bar clamping oil cylinder is loosened to drive the piston rod to move, so that the feeding of the slag bar can be greatly facilitated, and the production efficiency is improved.
3. The speed reducing motor provides rotating force, and can drive the oxygen lance nozzle to rotate through the inner shaft in the oxygen pipe, unlike the traditional oxygen blowing, the traditional oxygen blowing drives the oxygen pipe to integrally rotate, and the oxygen lance nozzle is fixed on the oxygen pipe, so that the oxygen lance nozzle is not influenced by the outside of the oxygen pipe in the production process, the stability of the oxygen blowing is improved, the production stability is also improved, and the production quality and the production efficiency are improved.
4. According to the invention, the driving force is provided by the gear motor, the inner shaft is driven to rotate, the inner shaft is driven to drive the half gear to rotate in the process of driving the inner shaft to drive the oxygen gun nozzle to rotate, when the half gear rotates to be meshed with the half gear ring, the half gear ring is driven to rotate for a distance, namely the fan-shaped piece is driven to rotate for a distance, and in the process of converting, the main wind direction of converting can be changed constantly, the converting uniformity is improved, and the converting quality is improved.
5. When the slag rod is put in, the slag rod clamping oil cylinder is loosened, the slag rod clamping oil cylinder moves towards the oxygen gun nozzle to drive the connecting rod and the movable block on the connecting rod to move to the notch in the middle of the fixed ring, the fixed ring is closed to seal the oxygen pipe, and the gas is prevented from flowing back after the blowing of the oxygen gun is finished, so that the inside of the oxygen pipe enters steel slag generated in steelmaking, the loss of the internal structure of the oxygen pipe is caused, the safety is improved, and the service life of the device is prolonged.
6. According to the invention, the scraping plate is arranged on the connecting rod, when slag bars are put in and clamped, the slag bars clamp the oil cylinder to reciprocate, the connecting rod and the scraping plate on the connecting rod are driven to clean the inner wall of the oxygen pipe, and the scraping plate is arranged above the oxygen pipe to clean dust which is difficult to clean above the oxygen pipe, so that dust in the oxygen pipe is reduced, the quality of oxygen circulation is improved, and the quality of oxygen blowing is indirectly improved.
7. According to the invention, the air bag is arranged on the oxygen pipe, oxygen is mainly gathered in the air bag in the process of sealing the oxygen pipe, if backflow is generated during sealing of the oxygen pipe, the oxygen is also gathered in the air bag, the influence of gas on the oxygen pipe is prevented, and the gas in the air bag can be blown out in the next oxygen blowing process and enters the steelmaking furnace.
8. According to the invention, the air bags are arranged, so that the air bags gather gas when the oxygen pipe is closed, and release the gas together when the oxygen pipe circulates, so that the initial oxygen amount and the oxygen flow rate during oxygen blowing are increased, and the blowing quality and efficiency are improved.
9. According to the invention, the half-toothed ring is arranged to rotate for a certain distance, namely the fan-shaped piece is driven to rotate for a certain distance, and gas flows into the fan-shaped notch with smaller size due to the fan-shaped notch arranged on the fan-shaped piece, so that the oxygen flow rate during oxygen blowing can be better improved, and the blowing quality and efficiency are improved.
10. According to the invention, through the fan-shaped notch arranged on the fan-shaped piece, gas flows into the fan-shaped notch with smaller size, so that the oxygen flow rate during oxygen blowing can be better improved, the fan-shaped notch is close to the edge of the oxygen pipe, dust adhered to the inner wall of the oxygen pipe can be blown away, the cleanliness of the inner wall of the oxygen pipe is improved, and the smoothness of oxygen circulation in the oxygen pipe is also indirectly improved.
Of course, it is not necessary for any one product to practice the invention to achieve all of the advantages set forth above at the same time.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are needed for the description of the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic perspective view of an integrated trolley for feeding slag-stopping rods for cleaning hanging slag at the furnace mouth of a steelmaking furnace;
FIG. 2 is a schematic diagram of the front view structure of the slag-stopping rod feeding integrated trolley for cleaning slag hanging at the furnace mouth of the steelmaking furnace;
FIG. 3 is a schematic view of the internal construction of an oxygen lance assembly of the integrated trolley for slag-stopping rod delivery for cleaning slag hanging at the furnace mouth of the steelmaking furnace;
FIG. 4 is a schematic diagram of the internal structure of the slag-stopping rod feeding integrated trolley for cleaning slag hanging at the furnace mouth of the steelmaking furnace;
FIG. 5 is a schematic view of the structure of FIG. 3A according to the present invention;
FIG. 6 is a schematic view of the structure of the adjusting assembly of the present invention.
In the drawings, the list of components represented by the various numbers is as follows:
110. a vehicle body; 1101. a vehicle body; 1102. a driving wheel set; 1103. a driven wheel group; 120. a slag blocking rod throwing component; 1201. the slag rod clamps the oil cylinder; 1202. a piston rod; 1203. a housing; 1204. clamping blocks; 1205. a thermal insulation plate; 130. an oxygen lance assembly; 1301. a speed reducing motor; 1302. a coupling; 1303. a rotary joint; 1304. an oxygen pipe; 1305. an oxygen valve; 1306. a nitrogen valve; 1307. an oxygen lance nozzle; 1308. an inner shaft; 210. a seal assembly; 2101. a connecting rod; 2102. an air bag; 2103. a fixing ring; 2104. a movable block; 2105. a positioning part; 21051. a fixing piece; 21052. a movable column; 21053. a spring; 2106. a scraper; 220. an adjustment assembly; 2201. a filter screen; 2202. a fan-shaped sheet; 2203. a half gear; 2204. a half-toothed ring; 2205. a fan-shaped notch; 310. a slewing bearing; 320. a rotating member; 330. an oxygen lance telescopic cylinder; 340. the oxygen lance swings the oil cylinder up and down.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
In the description of the present invention, it should be understood that the terms "upper," "middle," "outer," "inner," and the like indicate an orientation or a positional relationship, and are merely for convenience of describing the present invention and simplifying the description, but do not indicate or imply that the components or elements referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the present invention.
Example 1
As shown in fig. 1 to 6, the slag-stopping rod feeding integrated trolley for cleaning the hanging slag at the furnace mouth of the steelmaking furnace of the embodiment comprises a vehicle body 110, a slag-stopping rod feeding assembly 120, an oxygen lance assembly 130 and a sealing assembly 210;
the rotary bearing 310 is arranged on the car body 110, the slag bar throwing assembly 120 and the oxygen lance assembly 130 are arranged on the rotary bearing 310, and the sealing assembly 210 is arranged between the slag bar throwing assembly 120 and the oxygen lance assembly 130;
the slewing bearing 310 can rotate, and a driving structure is arranged in the vehicle body 110 and can drive the slewing bearing 310 to rotate;
the slag bar throwing assembly 120 and the oxygen lance assembly 130 are arranged on an integrated trolley, and the slag bar throwing assembly 120 and the oxygen lance assembly 130 are arranged on the same upper part and the same lower part, so that the slag bar throwing assembly and the oxygen lance assembly 130 can be basically synchronous, and after the blowing of the oxygen lance is finished, the throwing of the slag bar can be prepared.
The slag bar throwing assembly 120 comprises a slag bar clamping oil cylinder 1201, a piston rod 1202, a shell 1203, a clamping block 1204 and a heat insulation plate 1205, wherein the piston rod 1202 is arranged on the slag bar clamping oil cylinder 1201, one end of the piston rod 1202, which is far away from the slag bar clamping oil cylinder 1201, is connected with the clamping block 1204, the piston rod 1202 is arranged inside the shell 1203, and the heat insulation plate 1205 is arranged on the clamping block 1204;
wherein, in the stage of oxygen converting, the slag bar clamping cylinder 1201 is clamped, and the slag bar is clamped between clamp block 1204 and shell 1203, and thermal insulation plate 1205 can keep off the temperature, and in the stage of slag bar putting in, the slag bar clamping cylinder 1201 unclamps, drives piston rod 1202 to remove.
In this embodiment, the housing 1203 protects the piston rod 1202, and the clamping block 1204 has a square structure, so that the slag bar can be better clamped.
The oxygen lance assembly 130 comprises a gear motor 1301, a coupler 1302, a rotary joint 1303, an oxygen pipe 1304, an oxygen valve 1305, an oxygen valve 1306 and an oxygen lance nozzle 1307, wherein the rotary joint 1303 is arranged at one end of the oxygen pipe 1304, the oxygen lance nozzle 1307 is movably arranged at the other end of the oxygen pipe 1304, an inner shaft 1308 is arranged inside the oxygen pipe 1304, the inner shaft 1308 is connected with the coupler 1302 through the rotary joint 1303, one end of the inner shaft 1308, which is far away from the rotary joint 1303, is connected with the oxygen lance nozzle 1307, the output end of the gear motor 1301 is connected to the coupler 1302, the oxygen valve 1305 and the nitrogen valve 1306 are arranged on the oxygen pipe 1304, and the oxygen valve 1305 and the nitrogen valve 1306 are distributed in a straight line array at equal intervals;
wherein, in the gear motor 1301 provides the rotation, can drive oxygen rifle shower nozzle 1307 through the interior axle 1308 in the oxygen pipe 1304 and rotate, unlike traditional oxygen converting, traditional oxygen converting drives the whole rotation of oxygen pipe 1304, and oxygen rifle shower nozzle 1307 is fixed on the oxygen pipe 1304, carries oxygen through oxygen valve 1305, carries nitrogen through nitrogen valve 1306.
The sealing assembly 210 comprises a connecting rod 2101, an air bag 2102, a fixed ring 2103, a movable block 2104 and a scraper 2106, wherein the connecting rod 2101 is connected to the piston rod 1202, the air bag 2102 is installed on the oxygen pipe 1304, the inside of the air bag 2102 is communicated with the inside of the oxygen pipe 1304, the fixed ring 2103 is installed on the air bag 2102 and is positioned on the inner wall of the oxygen pipe 1304, the fixed ring 2103 is hollow, the movable block 2104 is movably arranged in the center of the fixed ring 2103, one end, far away from the piston rod 1202, of the connecting rod 2101 is connected to the movable block 2104, and the scraper 2106 is arranged on the connecting rod 2101;
the air bag 2102 can store air well, the connecting rod 2101 moves along with the piston rod 1202, the connecting rod 2101 can drive the movable block 2104 to move, an annular gap is reserved in the middle of the fixed ring 2103, the movable block 2104 is an object identical to the annular gap, and the gap of the fixed ring 2103 can be sealed;
in this embodiment, a through groove is formed in the housing 1203, which can accommodate the connecting rod 2101 and can accommodate the movement of the connecting rod 2101, at the stage of oxygen blowing, the movable block 2104 is separated from the fixed ring 2103, so that air in the oxygen pipe 1304 circulates, after the oxygen blowing is finished, at the stage of slag rod throwing, in order to prevent steel slag from entering the oxygen pipe 1304, the slag rod clamping cylinder 1201 moves towards the oxygen gun nozzle 1307, the connecting rod 2101 and the movable block 2104 thereon are driven to move to a notch in the middle of the fixed ring 2103, the fixed ring 2103 is closed, the oxygen pipe 1304 is sealed, and the contact part of the connecting rod 2101 and the oxygen pipe 1304 is provided with a sealing element, so that oxygen loss is prevented.
An adjusting component 220 is arranged in the oxygen tube 1304, the adjusting component 220 comprises a filter screen 2201, a sector 2202, a half gear 2203 and a half toothed ring 2204, the filter screen 2201 is arranged in the oxygen tube 1304 and is close to an oxygen lance nozzle 1307, the half gear 2203 is connected to an inner shaft 1308, the half toothed ring 2204 is meshed with the half gear 2203, the sector 2202 is connected to the half gear 2203, the edge of the sector 2202 is movably matched with the inner wall of the oxygen tube 1304, and a sector notch 2205 is arranged on the sector 2202;
in this embodiment, only one section of the half gear 2203 and the half gear ring 2204 has teeth, the half gear 2203 rotates along with the inner shaft 1308, and when the teeth of the half gear 2203 and the half gear ring 2204 are in meshing contact with the teeth, the half gear 2203 drives the half gear ring 2204 to rotate, indirectly drives the sector plate 2202 to rotate, and the sector plate 2202 is movably clamped on the outer wall of the oxygen tube 1304.
The vehicle body 110 comprises a vehicle body 1101, a driving wheel set 1102 and a driven wheel set 1103, wherein the driving wheel set 1102 and the driven wheel set 1103 are arranged on the vehicle body 1101;
wherein the driving wheel set 1102 provides driving force.
The sealing assembly 210 further comprises a positioning part 2105, the positioning part 2105 comprises a fixing piece 21051, movable columns 21052 and springs 21053, the fixing piece 21051 is connected to the movable block 2104, the fixing piece 21051 is arranged on the movable block 2104, a plurality of groove bodies are arranged on the fixed ring 2103, each groove body is internally provided with one movable column 21052 and one spring 21053, each spring 21053 is sleeved on each movable column 21052, and each movable column 21052 is connected to the fixed ring 2103.
The rotary bearing 310 is provided with a rotating member 320, the rotating member 320 is provided with an oxygen lance up-down swinging oil cylinder 340, the oxygen lance up-down swinging oil cylinder 340 is connected to a speed reduction motor 1301, the rotary bearing 310 is also provided with an oxygen lance telescopic oil cylinder 330, and the oxygen lance telescopic oil cylinder 330 is connected to an oxygen pipe 1304;
in this embodiment, the rotating member 320 cooperates with the up-and-down swing cylinder 340 to enable the oxygen pipe 1304 to swing up and down.
Example two
The application method of the integrated trolley for feeding the slag blocking rod for cleaning the slag hanging at the furnace mouth of the steelmaking furnace comprises the following steps:
s1, preparing;
the driving wheel set 1102 and the driven wheel set 1103 arranged on the car body 110 convey the slag bar throwing assembly 120 and the oxygen lance assembly 130 to a steelmaking furnace;
s2, converting by an oxygen lance;
in the converter steelmaking process, the oxygen lance assembly 130 is improved by driving the oxygen lance telescopic oil cylinder 330 and the oxygen lance up-down swinging oil cylinder 340, driving the inner shaft 1308 to rotate by providing driving force through the gear motor 1301, and the inner shaft 1308 drives the oxygen lance nozzle 1307 to rotate, so that the oxygen lance rotation in the converter converting process is realized;
s3, gas regulation;
in the process that the gear motor 1301 provides driving force to drive the inner shaft 1308 to rotate, the inner shaft 1308 drives the oxygen lance nozzle 1307 to rotate, the inner shaft 1308 drives the half gear 2203 to rotate, when the half gear 2203 rotates to be meshed with the half gear 2204, the half gear 2204 is driven to rotate for a certain distance, namely the sector piece 2202 is driven to rotate for a certain distance, the sector notch 2205 rotates for a certain distance, and the sector piece 2202 blocks the oxygen pipe 1304, only the sector notch 2205 is reserved for conveying oxygen, and the position of the sector notch 2205 is changed to adjust the main flow direction of the gas;
s4, putting slag bars;
the slag bar throwing assembly 120 is lifted by driving the oxygen lance telescopic oil cylinder 330 and the oxygen lance up-down swinging oil cylinder 340, the slag bar throwing assembly 120 is lifted to the converter height, the slag bar clamping oil cylinder 1201 is loosened, and the slag bar is thrown;
s5, sealing an oxygen pipe 1304;
when the slag bars are put in, the slag bar clamping oil cylinder 1201 is loosened, at the moment, the oxygen lance blowing is stopped, the slag bar clamping oil cylinder 1201 moves towards the oxygen lance nozzle 1307, the connecting rod 2101 and the movable block 2104 on the connecting rod are driven to move, and the connecting rod moves to a notch in the middle of the fixed ring 2103 to seal the fixed ring 2103, namely the oxygen pipe 1304 is sealed;
s6, ending;
the trolley is moved out of the converter range.
The preferred embodiments of the invention disclosed above are intended only to assist in the explanation of the invention. The preferred embodiments are not exhaustive or to limit the invention to the precise form disclosed. Obviously, many modifications and variations are possible in light of the above teaching. The embodiments were chosen and described in order to best explain the principles of the invention and the practical application, to thereby enable others skilled in the art to best understand and utilize the invention. The invention is limited only by the claims and the full scope and equivalents thereof.
Claims (6)
1. The slag blocking rod throwing integrated trolley for cleaning slag hanging at the furnace mouth of the steelmaking furnace is characterized by comprising a trolley body (110), a slag blocking rod throwing assembly (120), an oxygen lance assembly (130) and a sealing assembly (210);
the rotary bearing (310) is arranged on the car body (110), the slag blocking rod throwing assembly (120) and the oxygen lance assembly (130) are arranged on the rotary bearing (310), and a sealing assembly (210) is arranged between the slag blocking rod throwing assembly (120) and the oxygen lance assembly (130);
the slag bar throwing assembly (120) comprises a slag bar clamping oil cylinder (1201), a piston rod (1202), a shell (1203), a clamping block (1204) and a heat insulation plate (1205), wherein the piston rod (1202) is arranged on the slag bar clamping oil cylinder (1201), one end, far away from the slag bar clamping oil cylinder (1201), of the piston rod (1202) is connected with the clamping block (1204), the piston rod (1202) is arranged inside the shell (1203), and the heat insulation plate (1205) is arranged on the clamping block (1204);
the oxygen lance assembly (130) comprises a speed reducing motor (1301), a shaft coupling (1302), a rotary joint (1303), an oxygen pipe (1304), an oxygen valve (1305), a nitrogen valve (1306) and an oxygen lance nozzle (1307), wherein the rotary joint (1303) is arranged at one end of the oxygen pipe (1304), the oxygen lance nozzle (1307) is movably arranged at the other end of the oxygen pipe (1304), an inner shaft (1308) is arranged inside the oxygen pipe (1304), the inner shaft (1308) is connected with the shaft coupling (1302) through the rotary joint (1303), one end of the inner shaft (1308) far away from the rotary joint (1303) is connected with the oxygen lance nozzle (1307), the output end of the speed reducing motor (1301) is connected to the shaft coupling (1302), the oxygen valve (1305) and the nitrogen valve (1306) are arranged on the oxygen pipe (1304) in a straight line array mode;
seal assembly (210) are including connecting rod (2101), gasbag (2102), solid fixed ring (2103), movable block (2104) and scraper blade (2106), connecting rod (2101) are connected on piston rod (1202), gasbag (2102) are installed on oxygen pipe (1304), inside and the inside intercommunication of oxygen pipe (1304) of gasbag (2102), gu fixed ring (2103) are installed on gasbag (2102) and are located the inner wall of oxygen pipe (1304), gu fixed ring (2103) cavity, movable block (2104) activity sets up at solid fixed ring (2103) center, connecting rod (2101) are kept away from one end of piston rod (1202) and are connected on movable block (2104), scraper blade (2106) set up on connecting rod (2101).
2. The slag bar feeding integrated trolley for cleaning slag hanging at the furnace mouth of a steel furnace according to claim 1, wherein the integrated trolley is characterized in that: the oxygen pipe (1304) is inside to be provided with adjusting part (220), adjusting part (220) are including filter screen (2201), sector piece (2202), half gear (2203) and half ring gear (2204), filter screen (2201) set up inside oxygen pipe (1304), and be close to oxygen rifle shower nozzle (1307), half gear (2203) are connected on interior axle (1308), half ring gear (2204) and half gear (2203) meshing, sector piece (2202) are connected on half gear (2203), sector piece (2202) edge and oxygen pipe (1304) inner wall clearance fit, be provided with sector breach (2205) on sector piece (2202).
3. The slag bar feeding integrated trolley for cleaning slag hanging at the furnace mouth of a steel furnace according to claim 2, wherein the integrated trolley is characterized in that: the automobile body (110) comprises an automobile body (1101), a driving wheel set (1102) and a driven wheel set (1103), wherein the driving wheel set (1102) and the driven wheel set (1103) are arranged on the automobile body (1101).
4. A slag bar delivery integrated trolley for cleaning slag on a furnace mouth of a steelmaking furnace as claimed in claim 3, wherein: sealing component (210) still includes location portion (2105), location portion (2105) include stationary blade (21051), movable column (21052) and spring (21053), stationary blade (21051) are connected on movable block (2104), stationary blade (21051) set up on movable block (2104), be provided with a plurality of cell bodies on fixed ring (2103), every cell body inside is provided with a movable column (21052) and a spring (21053), every spring (21053) cover is established on movable column (21052), movable column (21052) are connected on fixed ring (2103).
5. The integrated trolley for slag stopping rod delivery for cleaning slag hanging at furnace mouth of steel furnace according to claim 4, wherein the integrated trolley is characterized in that: the rotary bearing (310) is provided with a rotating part (320), the rotating part (320) is provided with an oxygen lance up-and-down swinging oil cylinder (340), the oxygen lance up-and-down swinging oil cylinder (340) is connected to a speed reduction motor (1301), the rotary bearing (310) is also provided with an oxygen lance telescopic oil cylinder (330), and the oxygen lance telescopic oil cylinder (330) is connected to an oxygen pipe (1304).
6. The method for using the slag-stopping rod for cleaning the hanging slag at the furnace mouth of the steelmaking furnace as claimed in claim 5 to put in the integrated trolley is characterized in that: the method comprises the following steps:
s1, preparing;
a driving wheel set (1102) and a driven wheel set (1103) arranged on the car body (110) convey the slag bar throwing component (120) and the oxygen lance component (130) to a steelmaking furnace;
s2, converting by an oxygen lance;
in the converter steelmaking process, an oxygen lance assembly (130) is improved by driving an oxygen lance telescopic oil cylinder (330) and an oxygen lance up-down swinging oil cylinder (340), driving an inner shaft (1308) to rotate by providing driving force through a gear motor (1301), and the inner shaft (1308) drives an oxygen lance nozzle (1307) to rotate, so that the oxygen lance is rotated in the converter converting process;
s3, gas regulation;
in the process that the gear motor (1301) provides driving force, the driving inner shaft (1308) rotates, the inner shaft (1308) drives the oxygen lance nozzle (1307) to rotate, the driving inner shaft (1308) drives the half gear (2203) to rotate, when the half gear (2203) rotates to be meshed with the half gear ring (2204), the half gear ring (2204) is driven to rotate for a certain distance, namely the sector piece (2202) is driven to rotate for a certain distance, the sector notch (2205) rotates for a certain distance, and as the sector piece (2202) blocks the oxygen pipe (1304), only the sector notch (2205) is reserved for conveying oxygen, and the position of the sector notch (2205) is changed to adjust the main flow direction of the gas;
s4, putting slag bars;
the slag bar throwing assembly (120) is improved by driving the oxygen lance telescopic oil cylinder (330) and the oxygen lance up-down swinging oil cylinder (340), the slag bar throwing assembly (120) is improved to the converter height, the slag bar clamping oil cylinder (1201) is loosened, and the slag bar is thrown;
s5, sealing an oxygen pipe (1304);
when the slag bars are put in, the slag bar clamping oil cylinder (1201) is loosened, at the moment, the oxygen lance blowing is stopped, the slag bar clamping oil cylinder (1201) moves towards the oxygen lance nozzle (1307) to drive the connecting rod (2101) and the movable block (2104) on the connecting rod to move to a notch in the middle of the fixed ring (2103), and the fixed ring (2103) is closed, namely the oxygen pipe (1304) is sealed;
s6, ending;
the trolley is moved out of the converter range.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310846732.1A CN116814897B (en) | 2023-07-11 | 2023-07-11 | Integrated trolley for feeding slag blocking rod for cleaning slag hanging at furnace mouth of steelmaking furnace and use method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310846732.1A CN116814897B (en) | 2023-07-11 | 2023-07-11 | Integrated trolley for feeding slag blocking rod for cleaning slag hanging at furnace mouth of steelmaking furnace and use method thereof |
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| CN116814897A CN116814897A (en) | 2023-09-29 |
| CN116814897B true CN116814897B (en) | 2023-12-15 |
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| CN208455017U (en) * | 2017-12-08 | 2019-02-01 | 日照钢铁控股集团有限公司 | A kind of strip brush steel adhesion on oxygen lance cleaning tool |
| CN112322824A (en) * | 2020-10-12 | 2021-02-05 | 天津天钢联合特钢有限公司 | Method for controlling slag overflow in converter tapping process |
| CN217922176U (en) * | 2022-07-12 | 2022-11-29 | 中普（邯郸）钢铁有限公司 | Converter mouth cleaning device |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0873920A (en) * | 1994-09-01 | 1996-03-19 | Nisshin Steel Co Ltd | Oxygen blowing device for electric furnace |
| CN2232921Y (en) * | 1995-05-30 | 1996-08-14 | 首钢总公司 | Machine for stopping slag and throwing balls |
| CN2748471Y (en) * | 2004-11-22 | 2005-12-28 | 谢跃明 | Slag retaining ball feeding device for converter tap hole |
| CN200971371Y (en) * | 2006-07-19 | 2007-11-07 | 孙涛 | Converter air slag blowing device |
| EP2360282A1 (en) * | 2010-02-15 | 2011-08-24 | SMS Siemag Aktiengesellschaft | Electric arc furnace |
| CN104195285A (en) * | 2014-08-15 | 2014-12-10 | 浙江天翔环保设备有限公司 | High-efficiency steelmaking converter system |
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| CN217922176U (en) * | 2022-07-12 | 2022-11-29 | 中普（邯郸）钢铁有限公司 | Converter mouth cleaning device |
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| CN116814897A (en) | 2023-09-29 |
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