CN109916180A - Ladle refractory lining flame gunning machine - Google Patents

Ladle refractory lining flame gunning machine Download PDF

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Publication number
CN109916180A
CN109916180A CN201910306195.5A CN201910306195A CN109916180A CN 109916180 A CN109916180 A CN 109916180A CN 201910306195 A CN201910306195 A CN 201910306195A CN 109916180 A CN109916180 A CN 109916180A
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oxygen
sleeve
gas
bearing
horizontal hunting
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王世松
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Abstract

The present invention relates to a kind of ladle refractory lining flame gunning machines, are the ladle refractory linings of metallurgy steel-making, carry out the key equipment of flame gunning.Oxygen you can well imagine by outer portion and carrying is fluidized the combustion gas of powdery gunning refractory, by the rotatable bilayer sleeve synthesizer conversion packaged tube conveying of component, oxygen is in outer layer, and combustion gas is in internal layer.When reaching main burner, oxygen switchs to normal pressure by high pressure, low speed, high speed rotates by force main jet pipe and combustion gas under not combustion state, after being sufficiently mixed uniformly, then sprays rapid burning.Liner wall surface is heated to high temperature fused state by flame, while gunning refractory is sprayed into fallaway type and is attached in inner liner wall, is formed refractory ceramics sintering, is reached flame gunning purpose.On main burner excircle, equipped with more set ignition burners, eliminating its de- fire may.Spray repair function makes flame-thrower nozzle or more, the comprehensive swing in left and right, is adjusted to the distance in spray repair face, can also make the forward and backward movement of nozzle or rotate, reach at new spray repair.

Description

Ladle refractory lining flame gunning machine
Technical field
The present invention relates to metallurgy industry, the ladle of STEELMAKING PRODUCTION, refractory lining is under the condition of high temperature, carries out flame When spray repair, the key equipment in flame gunning device that uses.
Background technique
In steelmaking process, ladle is for containing high-temperature molten steel, and when there is external refining process, ladle is also referred to as refined Furnace body plays the effect of high temperature smelting furnace.Refractory lining wall in ladle is directly contacted with high-temperature molten steel, with other metals The characteristics of smelting furnace compares, ladle: the time that high-temperature molten steel is held in ladle is longer;Steel is stirred in bottom of steel ladle Argon Liquid, when smelting as refining furnace, refractory lining wall is stirred that impact, that high temperature slag liquid ablates intensity is big by high-temperature molten steel.In fire resisting It serves as a contrast the surface contacted with molten steel and molten steel is incorporated by continuous corrode, then floated to above it from molten steel, become high-temperature fusion steel slag A part of composition causes the thickness of refractory lining wall to be incrementally decreased.Ladle is transported to by equipment such as flatcar, overhead traveling cranes It on each different station, is limited by associated device in producing, outer dimension does not allow excessive, and weight did not allowed Weight, i.e., the thickness of ladle refractory lining wall does not allow blocked up.On the other hand, if the thickness of ladle refractory lining wall compared with Thickness, then its amount that can be allowed to eat away thickness can also be more, although the service life of refractory lining can be made significantly to mention It is high.But the thickness change of refractory lining wall is excessive, can make carrying high-temperature molten steel, the constantly internal volume in variation, longitudinal and lateral It is out of proportion, it is not able to satisfy steel-smelting production process requirement.Compared with other high temperature smelting furnaces, the refractory lining wall thickness of ladle It is the smallest, and the amount for allowing to be etched refractory lining wall thickness is also the smallest.No side may make high-temperature molten steel penetrate steel Packet refractory lining wall causes the safety accident of bleed-out to occur, causes the heavy losses that can not be retrieved.This danger phenomenon in production It must avoid the occurrence of, once cannot all allow, it is ensured that safety in production.
Spray repair is the important channel for improving the refractory lining service life.The refractory lining thickness being thinned in will producing, is producing The gap phase, by spray repair operation be restored to original thickness as far as possible.During production is realized, it is suitble to some high temperature smeltings of spray repair operation Furnace, obtains positive effect really, and refractory lining access times increase substantially.Had in reality using comparative maturity: dry method, half The spray repair mode of dry and wet.Flame gunning mode, up to the present, since technology, equipment and safety etc. are all endless Kind, also in the exploratory stage, not real uses report and illustration.No matter which kind of spray repair mode, first gunning refractory energy are used The refractory lining wall surface for needing spray repair is enough adhered to, and under high temperature action, form ceramic post sintering and be integrally formed, completed Spray repair process.The spray repair mode of dry method, semidry method and wet process is unsuitable for carrying out spray repair to ladle refractory lining surface.To steel Packet containment wall carries out spray repair, and gunning refractory adhesive rate is extremely low, almost without spray repair effect.Spray repair or repairing, material for repairing are carried out to packet bottom It can be formed and be heaped on bottom of steel ladle refractory lining surface, gunning refractory adhesive rate problem is not present.But ladle has been after having poured steel, It generally can not accomplish to repair ladle refractory lining in time, within this period, during keeping waste heat, a part can be lost and contained Some heats, high temperature heat required for material for repairing can be sintered by, which causing, is not able to satisfy, and material for repairing cannot be with bottom original refractory lining It is formed as one.When tapping, steel liquid flow impact ladle bottom, material for repairing is detached from bottom original refractory lining at once, floats to molten steel On face, also without repair efficiency.It is all that steel is built using raising all the time to improve ladle refractory lining service life The quality of packet refractory brick, the method for improving steel ladle fireproofing tile masonry quality, although ladle refractory lining access times increased, But limited extent.Ladle builds the refractory brick that refractory lining uses high-end quality, and unit price necessarily increases, then economic benefit is not It is improved.Based on many reasons and production scene actual displayed, ladle refractory lining access times are far below other high temperature Smelting furnace refractory lining.
Although there is difference, ladle refractory lining thickness to be about 200mm or so for the ladle of each steel mill.In order to pacify For the sake of complete, it usually is etched 40mm left and right thickness in refractory lining inner surface, cannot be reused.That is, ladle is resistance to Fiery liner only has 1/5 and is used effectively, remaining 4/5 is not utilized.Non-serviceable old refractory lining is removed, is built again New refractory lining meets the safety in production requirement of next stage.No matter building refractory brick product used in ladle refractory lining Bad degree of fine quality is how, in process of production, is effectively consumed and only accounts for small part, and after remaining major part is removed, make It is disposed for the extremely low secondary refractory material of reuse ratio, causes resource significant wastage.Building, the new refractory lining of ladle is whole A process, up to the present, substantially worker's handwork, working environment is severe, and large labor intensity, mechanization degree is low, A large amount of labours are occupied, cost of labor is high.Ladle refractory lining consumes the expense of refractory material, accounts for the consumed fire proofed wood of steel-making The expense of material more than half.The ton steel cost cost ratio for accounting for steel-making is also than more prominent.
Currently, domestic production ton steel needs to consume 5~8kg refractory material for maintaining ladle refractory lining, ton steel is produced It is 30~50 yuan for paying ladle refractory lining expense.Global output of steel in 2018 is 1,800,000,000 tons, Chinese output of steel It is 900,000,000 tons, in terms of macroscopic view, the refractory material of expense and consumption that ladle refractory lining needs all is a huge number Word.If can accomplish something in this respect, i.e., by flame jet-repairing method, so that production ton steel is for paying in ladle fire resisting Lining expense reduces half, reaches 15~25 yuan, market prospects will be boundless.Reduce the expense and disappear that ladle refractory lining needs The refractory material of consumption must just improve its effective this consumption ratio as far as possible, and reduction, which is not contacted with molten steel, to be just removed, cleans up The number of refractory lining part.Ladle refractory lining flame gunning technique can multiply several times and improve the number that ladle contains molten steel, greatly Amplitude improves refractory lining service life.Ladle refractory lining flame gunning device, can preferably meet in the condition of high temperature Under, the spray repair of refractory lining wall.The nozzle exit of ladle flame spray repair machine can produce nearly 3000 DEG C of thermal-flames, will need Part at gunned lining wall spray repair continues to be heated to high temperature fused state, while continuous to the liner wall surface at spray repair Continuous spray repair gun-mix refractory.When gunning refractory touches high temperature fused state liner wall surface, it is easy to be adsorbed, and inlay It to the inside, is integrated into ceramic post sintering, thinned refractory lining wall thickness is made to be restored thickening.Constantly replacement spray repair portion Position, repairs ladle refractory lining wall comprehensively, can be used for selectively pinpointing spray repair, and part is made to have serious damage Bad inner liner wall is repaired.
Ladle refractory lining flame gunning, mending device must technique, technology, equipment and in terms of meet work Make performance requirement.Ladle self-characteristic and ladle refractory lining flame gunning technique, have excellent matching, various just Have in the smelting furnace of refractory lining, also only ladle has matching performance excellent in this way.Only have ladle refractory lining to be suitble to Flame gunning, and the refractory lining of other smelting furnaces will carry out flame gunning, it will it is very difficult.From this several respect it may be said that Bright: 1) ladle is after having poured steel, and to there is short time interval when flame gunning, refractory lining wall temperature declines by a small margin, but contains Feeding heat is considerable, and general surface is all at 1000 DEG C or more.When flame gunning, flame gunning device adds gunned lining wall surface Heat arrives high temperature fused state, and the time can shorten more.For comparatively fast flame gunning good basis can be provided.2) flame gunning Device heating efficiency is limited after all, it is impossible to gunned lining wall surface are heated to high temperature fused state rapidly.It small can only flow Gunning refractory is sprayed onto liner wall surface by amount, because the ability that quick high-temp ceramic post sintering is integrated is limited.So ladle flame sprays Benefit is a slow process, and large area flame gunning ladle refractory lining wall surface takes a long time.And ladle is more Set while parallel operation, for some specific ladle, time working clearance is can to extend, will not be to entire STEELMAKING PRODUCTION section It plays and impacts, meet flame gunning ladle refractory lining wall time longer requirement.3) flame gunning apparatus structure scale compared with Greatly, include it is main and auxiliary help equipment number more, work-yard is fixed, it has not been convenient to mobile.And ladle can by overhead traveling crane, Flatcar facilitates transhipment in each operating position.When flame gunning ladle refractory lining wall, meets the different position of spray repair, need It relays on each different station, carries out the requirement of spray repair.
Summary of the invention
Ladle refractory lining flame gunning machine of the present invention is the important equipment of flame gunning ladle refractory lining, main special Sign: it needs the ladle of flame gunning refractory lining to lie down and is placed on regulation working position, the double-deck spray repair casing of flame gunning machine leads to The running gear movement for crossing flame gunning machine, is inserted into the inner cavity of ladle.It is fluidized by the oxygen and carrying that flame gunning machine provides The combustion gas of solid, powdery is delivered in the nozzle of its end respectively by the double-deck spray repair casing.Oxygen is in the double-deck spray repair casing Outer layer, combustion gas is in internal layer.The oxygen that nozzle is transported to high pressure, low speed is transformed into normal pressure, high speed, strong rotary inside it Formula.High-speed rotating oxygen mixes integrally with combustion gas in nozzle interior, before nozzle ejection, when not burning completely It is able to carry out quick, sufficient premixing.Oxygen and combustion gas are adjusted to its flame in the axial flow velocity of nozzle interior mixed airflow 1.5~4 times of burning velocity prevent the dangerous phenomenon for generating burning or tempering in nozzle interior from occurring.It is well-mixed Oxygen and combustion gas spray in nozzle exit, strong rotated versions are equally presented.Can generate burning rapidly, stability is good, temperature High, the short flame of fast spread formula.This short flame of ultrahigh-temperature, which is effectively reduced to surrounding space, distributes heat, while making at spray repair Refractory lining wall heating surface (area) (HS increase, and quick heating, the thermal efficiency is high.Strong rotation is equally presented in nozzle exit in gunning refractory Helical form spray, obtain it is rapid, uniformly scatter, contact liner wall surface do not generate accumulation, the area that scatters is big, with flame gunning Technique requires to match.
The axial flow velocity of oxygen and combustion gas mixing air-flow in main burner is adjusted to much higher than its flame velocity.Though Will not so occur in the dangerous phenomenon that nozzle interior generates burning or tempering, but mixed airflow is easy to generate in nozzle exit De- fire phenomenon, it is also breakneck.Oxygen is sprayed from nozzle and combustion gas mixing throughput is big, is full of quickly semiclosed Ladle in it is intracavitary, be easy to generate detonation, i.e., generation explosion danger.De- fire is generated in order not to make main burner spray mixed airflow Danger is close to main burner in the excircle of main burner, arranges more set ignition burners.When the oxygen rotated by force is formed with combustion gas Mixed airflow is sprayed from the spout of main burner, and to spacious space, flow velocity is rapidly reduced, and is reached or is fired lower than its flame Speed is burnt, the flame for being ignited nozzle is lighted rapidly, detonation after avoiding mixed airflow from having accumulated amount.It is also oxygen that ignition burner, which sprays, The mixed airflow of gas and combustion gas, the problem for equally existing and how preventing tempering, take off fire.Every set ignition burner all use quantity compared with More, the very small fire jetting hole in aperture, minimum aperture effectively prevent being tempered.Since the flame aperture of ignition burner is very small, mix Even if closing air-flow from fire jetting hole high speed ejection, the distance for decaying to flame velocity is extremely short, along with the cluster of fire jetting hole Effect, there is no the possibility of de- fire.It is supplied to the mixed gas of ignition burner, by being transported in completely enclosed pipeline, although Locating external environment is thermal-flame, but is room temperature mixed gas in pipeline, very big from the temperature difference of ignition point, and is flowed Fast fast, temperature rising is very little, and same there is no kindlings, leads to the possibility of tempering.Due to ignition burner and refractory lining wall Be closer, spray thermal-flame have auxiliary heat effect to inner liner wall, make heat inner liner wall temperature improve faster.
Oxygen and the combustion gas for supplying every set ignition burner, are from same set of ignition gas distributor.Ignition gas point Orchestration receives respectively, the oxygen and combustion gas that respective pipeline is come, and is converted to more set double-skin duct conveyings, oxygen is in outer layer, combustion Gas is in internal layer.When close to ignition burner, one-pipe conveying is merged into, when so that reaching ignition burner, oxygen and combustion gas are abundant It is uniformly mixed.Ignition gas distributor be mounted on main jet mend casing by root position, receiving conveyed respectively by respective hose Lai Oxygen, combustion gas, then by oxygen, combustion gas variation be more set bilayer sleeves outputs.Its component distribution core retainer plate hangs over main jet and mends casing It on outer wall, is rigidly connected to each other, synchronous rotary.The aerobic air cavity of core and two chambers of gas chamber are distributed, receive oxygen, combustion respectively Gas, while being again the more sets being distributed in circumferencial direction by oxygen, fuel gas alternative, and every set is oxygen in outer layer, combustion gas is in internal layer Bilayer sleeve conveying.The component housing and distribution core of ignition gas distributor, form oxygen chamber and gas chamber, two closed Chamber.Two interfaces of housing respectively introduce oxygen, combustion gas in oxygen chamber and gas chamber.It distributes core and mends casing work with main jet Rotary motion, and housing does not have spinning movement, has bearing to keep concentricity between each other, the flexible sealing ring sealing in gap is prevented Block gas or gas leakage.Ignition gas distributor mends the comprehensive swing of casing upper and lower, left and right with main jet, and there is small size The change in displacement of degree, the oxygen hose being attached thereto, fuel gas conduit are all rubber hose, and displacement is completely within the scope of making up.
Rotatable bilayer sleeve synthesizer is equally the important device of ladle refractory lining flame gunning machine.By outer portion Not Tong Guo two root canal roads, oxygen and carrying is fluidized to the combustion gas of solid powder, is delivered to rotatable bilayer sleeve synthesizer.It closes It grows up to be a useful person oxygen and fuel gas alternative at successively being conveyed by rotatable bilayer sleeve, oxygen is carried and is fluidized in outer layer The combustion gas of solid powder is in internal layer.Two kinds of air-flows are transported to by two fixed -pipings respectively, switch to rotatable concentric bimetallic tube Road transfers out, and mends casing into main jet.Active Interface is certainly existed at conversion inside synthesizer, there is the possibility of leakage gas.Combustion Feed channel Active Interface, while using multipole rubber seal, mechanical labyrinth formula, filling lubricating grease, a variety of seal forms are arranged side by side It plays a role, it is ensured that combustion gas No leakage.Lubricating grease moistens rolling bearing, gas pipeline Active Interface in synthesizer simultaneously It is sliding.Oxygen Active Interface uses bilayer sleeve mode, guarantees that inside and outside layer relatively rotates, contact surface is that the dynamic of best bright finish is matched It closes, there is multilayer rubber sealing ring to participate in sealing.Combustion gas and oxygen boundary contact surface, using magnitude of interference big between deep hole and macropinacoid Tight fit, cooperative end part end face increase welding.On the one hand guarantee absolutely not there is mutual gas blowby between oxygen and combustion gas, On the other hand inside and outside layer pipeline is made to reach synchronous rotary, it between each other can be with transmitting large torque power.Main jet mends the inside and outside of casing Layer steel pipe and synthesizer main element, are all to add end to be welded to connect by fine thread.That is the rotating part and main jet of synthesizer Mending casing is rigid connection, and rotating power source is that external driving gear provides power, drives the component driven gear of synthesizer.By When ladle refractory lining flame gunning, the flame-thrower nozzle of sprayer generally lies in the depths operation of ladle inner cavity.It can rotate The double-deck spray repair casing it is relatively long, and have ignition gas distributor and more set ignition gas delivery cannulas, be tightly attached to Main jet mends the periphery of casing, acts therewith.Synthesizer supports spray repair casing, while carry its weight and generating very big Cantilevered bending moment force.
When ladle refractory lining flame gunning machine works, spray repair casing puts in the inner cavity of ladle, to reach comprehensive spray Mend refractory lining wall, it is necessary to which having movement has: the rotation of positive and negative direction, converts flame gunning face in the circumferencial direction of inner liner wall. The movement of front and rear direction exchanges flame gunning face in the longitudinal direction of ladle refractory lining.Left and right, upper and lower direction cooperation association Make the comprehensive swing formed, the distance of adjusting flame-thrower nozzle to inner liner wall.Ladle refractory lining flame gunning machine is main each zero, Component assembling shows that it has the function of above-mentioned total movement.Vertical pendulum moving frame has upper and lower two layers, rotatable bilayer sleeve synthesis Device is fixedly mounted on upper layer, and rotation driving speed reducer is fixedly mounted on lower layer.It is mounted on main on the shaft of rotation driving speed reducer Moving gear drives the component driven gear of rotatable bilayer sleeve synthesizer, so that spray repair casing makees positive and negative rotary motion.It is perpendicular Straight swinging frame and vertical oscillation main shaft are rigidly connected, and the both ends of vertical oscillation main shaft are symmetrical vertical with two by vertical oscillation bearing Plate is hinged, and two vertical plates support vertical pendulum moving frame and hanging, and vertical pendulum moving frame vertical direction between two vertical plates can have small model Enclose swing.Two vertical plates are fixed in horizontal hunting support plate, and there have between vertical pendulum moving frame and horizontal hunting support plate to be vertical Oscillating motor is connected, and under the action of fluid power, the piston vertical direction of vertical oscillation hydraulic cylinder is mobile, so that vertical pendulum moving frame Vertical direction is swung, i.e., spray repair casing makees vertical direction swing.Horizontal hunting support plate and horizontal pendulum moving axis are rigidly connected, horizontal Swinging support set is connect with rigidity of vehicle body, between horizontal pendulum moving axis and horizontal hunting support sleeve, installs upper and lower two sets of horizontal pendulums Dynamic bearing guarantees that horizontal hunting support plate and car body are opposite in the horizontal direction and swings, while by the torque of horizontal hunting support plate Power is transmitted on car body.End face bearing is installed between horizontal hunting support plate and car body, car body load level is made to swing branch All weight on fagging.There is horizontal hunting hydraulic cylinder to be connected between car body and horizontal hunting support plate, in the effect of fluid power Under, the piston horizontal direction of horizontal hunting hydraulic cylinder is mobile, so that horizontal pendulum moving frame horizontal direction is swung, i.e. spray repair casing makees water Square to swing.Lower car body is equipped with each two sets of active and passive wheel, adhesion wheel and, drive chain rigidly connected by movable sprocket Wheel is mounted on the shaft of travel driving motor, is had chain to be connected between active and passive sprocket wheel, is guaranteed that car body makees forward and backward movement. I.e. spray repair casing makees forward and backward movement.
Detailed description of the invention
Fig. 1 is the schematic front view of ladle refractory lining flame gunning machine of the present invention;
Fig. 2 is the schematic top plan view of ladle refractory lining flame gunning machine of the present invention;
Fig. 3 is ladle refractory lining flame-thrower nozzle A-A sectional view of the invention;
Fig. 4 is rotatable bilayer sleeve synthesizer B-B sectional view of the invention;
Fig. 5 is horizontal hunting support concept C-C sectional view of the invention;
Fig. 6 is vertical oscillation support concept D-D sectional view of the invention;
Fig. 7 is ignition gas distributor E-E sectional view of the invention.
In figure:
1, car body 2, wheel mount 3, by movable sprocket 4, adhesion wheel 5, chain 6, driving speed reducer 7, drive sprocket 8, upper lock shaft 9, vertical oscillation hydraulic cylinder 10, locking pin 11, vertical pendulum moving frame 12, horizontal hunting support plate 13, active Gear 14, anti-pivoted frame 15, fire-proof plate 16, by motor car wheel 17, fixing seat 18, rear bolt 19, horizontal hunting hydraulic cylinder 20, preceding bolt 21, igniting spray head 22, igniting outer tube 23, igniting inner sleeve 24, rotation conveying outer tube 25, interior spray head Seat 26, rotation conveying inner sleeve 27, interior spray head 28, nozzle block 29, main jet pipe 30, gas supply pipe 31, rear positioning sleeve 32, rear cover 33, gas sealing circle 34, lubrication sealing inner ring 35, bearing positioning sleeve 36, housing 37, oxygen conveying pipe 38, Intermediate sleeve 39, oxygen seal circle 40, inward turning tube 41, outward turning tube 42, lubrication sealed outer ring 43, rotating support shaft are held 44, front cover 45, key 46, driven gear 47, round nut 48, bottom fixed board 49, end face bearing block 50, end face bearing 51, inner ring positioning sleeve 52, horizontal pendulum moving axis 53, bottom positioning plate 54, horizontal hunting bearing 55, horizontal hunting support sleeve 56, side boring cover 57, vertical oscillation bearing 58, vertical oscillation main shaft 59, rotation speed reducer 60, pressing plate 61, vertical plate 62, side Pressing plate 63, clamp nut 64, rear end cap 65, distributor bearing 66, separation sleeve 67, positioning jump ring 68, anti-tube 69, Fuel gas conduit 70, gas distribute core 71, oxygen hose 72, distributor sealing ring 73, distributor housing 74, transition sleeve.
Specific embodiment
The present invention is further described in conjunction with the accompanying drawings and embodiments:
As shown in 1,3, the nozzle of ladle refractory lining flame gunning machine is conveyed by rotation conveying outer tube 24 and rotation Inner sleeve 26 forms bilayer sleeve and supports nozzle.Oxygen is provided by rotatable bilayer sleeve synthesizer and carries that be fluidized solid small The combustion gas of particulate refractory gunning refractory is delivered to nozzle by the inside and outside layer of bilayer sleeve respectively, and combustion gas is in internal layer, and oxygen is outside Layer.The combustion gas for being fluidized solid granule gun-mix refractory is carried by rotation conveying inner sleeve 26, is passed through again by interior nozzle boss 25 It crosses interior spray head 27 to spray, into the mixed zone of 29 bore passage of main jet pipe.Oxygen with constant pressure conveys inner sleeve by rotation The internal layer of the outer layer of pipe 26 and interior nozzle boss 25 and rotation conveying outer tube 24, the channel of composition, by nozzle block 28 and interior The outer layer of spray head 27 forms multiple narrow spiral shape air ducts side by side.Because of multiple back pressures that narrow spiral shape air ducts generate side by side, Spiral shape air duct two sides, oxygen are changed into the low-pressure state for being bordering on normal pressure from high pressure.I.e. oxygen is conveyed by high pressure, axial low speed, Switch to low pressure, the ejection of high speed rotation helical form, likewise enters the mixed zone of 29 bore passage of main jet pipe.High speed rotation in mixed zone Oxygen stream and combustion gas are adequately pre-mixed in incombustible situation, while but also mixed airflow and solid granule Shape gun-mix refractory is sprayed out of main jet pipe 29 in high speed rotation helical form.The axial flow velocity of mixed airflow in main jet pipe 29 Greater than flame velocity, after high speed rotation sprays, mixed airflow flow velocity sharply declines, and rapid ignition.Multiple igniting Spray head 21 is evenly distributed on the excircle of main jet pipe 29, and every igniting spray head 21 is supported by respective igniting outer tube 22, simultaneously Outer tube 22 light a fire to igniting spray head 21, oxygen and the uniform mixed airflow of combustion gas mixing are successively provided.By igniting housing The bilayer sleeve that pipe 22 and igniting inner sleeve 23 form, oxygen is in outer layer, and combustion gas is in internal layer, when points of proximity fire-fighting head 21, bilayer Casing switchs to single layer, after oxygen is quickly mixed with combustion gas, is transported to igniting spray head 21.Pass through intensive and quantity on igniting spray head 21 Numerous apertures by oxygen and combustion gas uniform mixing gas mixture, and keep stablizing combustion flame state, there is no it is de- fire or tempering can Can, while main burner is also eliminated, occur taking off the possibility of fire under any state.
As shown in Fig. 3,4,6, by external respectively by oxygen conveying pipe 37 and gas supply pipe 30, the oxygen that will be delivered to With carry the combustion gas for being fluidized solid powder, converted in rotatable bilayer sleeve synthesizer, and by rotation conveying inner sleeve 26 can be exported with what rotation conveying outer tube 24 formed with rotary double-layer casing, and oxygen is in outer layer, and combustion gas is in internal layer.Oxygen stream is defeated Send conversion line are as follows: reach in the toroidal cavity being made of intermediate sleeve 38 and outward turning tube 41 by oxygen conveying pipe 37.Pass through The through-hole of multiple distribution rules on 41 component of outward turning tube, it is logical that oxygen enters the annular that inward turning tube 40 and outward turning tube 41 form Road is exported using between rotation conveying inner sleeve 26 and rotation conveying outer tube 24.Intermediate sleeve 38 is not rotary part, outward turning Tube 41 is rotary part, between the two contact, is made of multi-layer sealed oxygen seal circle 39, prevents oxygen leakage.It takes There is the combustion gas for being fluidized solid powder, inward turning tube 40 is entered back into, most into the inner hole of rear cover 32 by gas supply pipe 30 It is exported afterwards by rotation conveying inner sleeve 26.Rear cover 32 is not rotary part, and inward turning tube 40 is rotary part, fuel gas transmission by Rotating pipe does not enter rotating pipe, and there is Active Interface for junction.Prevent combustion gas from leaking from Active Interface, in rear cover 32 Between 40 contact surface of inward turning tube, there is the double-deck gas sealing circle 33 to seal.Intermediate sleeve 38 and oxygen conveying pipe 37 and housing 36 Assembly is integrated, and two bearing positioning sleeves 35 are separately mounted to the two sides of intermediate sleeve 38, and in the inner hole of housing 36, two bearings are fixed The inside outer ring that position set 35 holds 43 with two sets of rotating support shafts of front and back ends contacts positioning.Two bearing positioning sleeves 35 and housing 36 Inner hole between contact surface, there is lubrication sealed outer ring 42 to play static seal effect, two bearing positioning sleeves 35 and outward turning tube 41 Between contact surface, have lubrication sealing inner ring 34 play dynamic sealing effect, prevent rotating support shaft hold in 43 lubricating grease leakage.Before The outer ring that end rotating support shaft holds 43 outsides is positioned by front cover 44, and front cover 44 is connected as one with housing 36.Rear end rotation branch The outside of support bearing 43 is positioned by rear cover 32, and the outer ring of inner ring is positioned by rear positioning sleeve 31.And rear cover 32 and housing 36 are linked as one Body, rear positioning sleeve 31 are linked together with outward turning tube 41.Driving gear 13 is mounted on the shaft with motor rotation speed reducer 59 On, driving gear 13 drives driven gear 46 to rotate.Driven gear 46 is linked together by key 45 with outward turning tube 41, outside Face is compressed by round nut 47 and is positioned, and the outer side contacts that medial surface holds 43 inner rings with front end rotating support shaft position.
As shown in Fig. 2,3,7, by external respectively by oxygen hose 71, fuel gas conduit 69, the oxygen that will be delivered to and combustion gas, It is converted in ignition gas distributor, while entering in more set 37 peripheral circumferentials of neighbour's oxygen conveying pipe and being circular layout, igniting is outer The bilayer sleeve that casing 22 and igniting inner sleeve 23 form, oxygen is in outer layer, and combustion gas is in internal layer.Oxygen is introduced by oxygen hose 71, It is then evenly distributed to every set, into the oxygen chamber of gas distribution core 70 by 22 He of igniting outer tube by distributor housing 73 The bilayer sleeve outer layer output that inner sleeve 23 of lighting a fire forms.Combustion gas is introduced by fuel gas conduit 69, by the housing 73 of distributor, is entered Gas distributes the gas chamber of core 70, then evenly distributes to the output of igniting inner sleeve 23 of every set bilayer sleeve.Distributor housing 73 be not rotary part, and it is rotary part that gas, which distributes core 70 and is linked together with rotation conveying outer tube 24,.Distributor housing 73 Cooperation is moved between gas distribution core 70, is guaranteed by two sets of distributor bearings 65, multiple distributor sealing rings 72 prevent oxygen, combustion Gas is revealed from oxygen chamber and gas chamber respectively.More set igniting outer tubes 22 distribute the oxygen chamber of core 70 by transition sleeve 74 and gas It is connected, more set igniting inner sleeves 23 are connected with the gas chamber of gas distribution core 70.Separation sleeve 66 divides two sets of distributor bearings 65 Compress the inner ring of outside distributor bearing 65 every, rear end cap 64, clamp nut 63 by distributing being threadedly engaged for core 70 with gas, Rear end cap 64 is compressed, so that two sets of distributor bearings 65 are determined relative to the axially position of gas distribution core 70.Positioning jump ring 67 It is caught in the card slot of housing 73, by the outer ring of two sets of distributor bearings 65, so that gas distribution core 70 and housing 73, relative axle To string quantity of motion in very a small range.Anti- tube 68 is rigidly connected with housing 73, and anti-tube 68 is inserted into the hole of anti-pivoted frame 14, anti-rotation Frame 14 and the vertical plate 61 of two sides are rigidly connected, so that housing 73 is not rotated with gas distribution core 70.
As shown in Fig. 1,2,5,6, forward and backward pressing plate 60 compresses the housing 36 of rotatable bilayer sleeve synthesizer, pressing plate 60 with Vertical pendulum moving frame 11 is linked together, and makes rotatable bilayer sleeve synthesizer vertical oscillation synchronous with vertical pendulum moving frame 11.Vertical pendulum Moving frame 11 is held up by vertical oscillation main shaft 58, and the both ends of vertical oscillation main shaft 58 are mounted on the inner hole of vertical oscillation bearing 57, side Pressing plate 62 and vertical oscillation main shaft 58 are rigidly connected, and compress the inner ring of vertical oscillation bearing 57.Outside vertical oscillation bearing 57 Circle is mounted in the supported hole of vertical plate 61, and side boring cover 56 and vertical plate 61 are rigidly connected, and compress the outer ring of vertical oscillation bearing 57. Vertical pendulum moving frame 11 is, as coercive mechanism, to make vertical direction swing at 61 carrying of vertical plate of two sides.The bottom of vertical plate 61 is fixed on water Flat pendulum moves the upper surface of support plate 12, by locking pin 10, so that the cylinder base of vertical oscillation hydraulic cylinder 9 and horizontal hunting support Plate 12 is articulated and connected.By upper lock shaft 8, so that the piston rod top of vertical oscillation hydraulic cylinder 9 and vertical pendulum moving frame 11 are hinged Connection.When vertical oscillation hydraulic cylinder 9 is under fluid power effect, piston rod stretches, contracting campaign, so that the upper and lower swing of vertical pendulum moving frame 11. Horizontal hunting support plate 12 and horizontal pendulum moving axis 52 are rigidly connected, and a set of horizontal pendulum moving axis is respectively installed at the both ends of horizontal pendulum moving axis 52 54 are held, the inner ring of horizontal hunting support sleeve 55 installs two sets of horizontal hunting bearings 54, and horizontal hunting support sleeve 55 passes through end face axis Seat 49 is held to be linked together with car body 1.Bottom fixed board 48 reinforces horizontal hunting support sleeve 55 and 1 bonding strength of car body.Bottom is fixed Position plate 53 and horizontal pendulum moving axis 52 are rigidly connected, and compress the inner ring end face of lower horizontal oscillation bearing 54, make horizontal hunting Bearing 54 is positioned relative to the axial direction of horizontal pendulum moving axis 52.Bending moment power existing for the inside of horizontal hunting support plate 12 is led to It crosses horizontal pendulum moving axis 52 and passes to upper and lower two sets of horizontal hunting bearings 54, then pass to horizontal hunting support sleeve 55, finally by Bottom fixed board 48 and end face bearing block 49, are transmitted on car body 1.The gravity of horizontal hunting support plate 12 is held by end face bearing 50 It carries, then is transmitted on car body 1 by end face bearing block 49.Inner ring positioning sleeve 51 and horizontal hunting support sleeve 55, difference positioning end The inner ring of 49 upper and lower end panel of spherical bearing seat.Fixing seat 17 is fixed on car body 1, by rear bolt 18 by horizontal pendulum hydrodynamic The rigid body rear end of cylinder pressure 19 is hinged in fixing seat 17.The piston rod front of horizontal hunting hydraulic cylinder 19 is cut with scissors by preceding bolt 20 It connects in horizontal hunting support plate 12.When horizontal hunting hydraulic cylinder 19 is under fluid power effect, piston rod stretches, contracting campaign, so that water Flat pendulum moves support plate 12 and makees horizontal hunting centered on the central axes of horizontal pendulum moving axis 52.Four sets of wheel mounts 2 are mounted on car body 1 The edge of lower section four, adhesion wheel 4 and by motor car wheel 16 by wheel mount 2, be separately mounted to 1 rear portion of car body and front.Band There is the driving speed reducer 6 of motor to be mounted on car body 1, is equipped with drive sprocket 7 on shaft.It is linked as by movable sprocket 3 and adhesion wheel 4 One, rotates synchronously.The torque of drive sprocket 7 is transmitted to by movable sprocket 3 by chain 5, and adhesion wheel 4 is made to make positive and negative rotation, To make car body 1 make forward and backward movement.Fireguard 15 is mounted on the front of car body 1, blocks the hyperthermia radiation heat of ladle inner cavity, disappears Except hyperthermia radiation heat is to equipment damage.

Claims (3)

1. ladle refractory lining flame gunning machine, it is characterised in that it includes car body (1), wheel mount (2), by movable sprocket (3), master Motor car wheel (4), chain (5), driving speed reducer (6), drive sprocket (7), upper lock shaft (8), vertical oscillation hydraulic cylinder (9), lock Rationed marketing (10), vertical pendulum moving frame (11), horizontal hunting support plate (12), driving gear (13), anti-pivoted frame (14), fire-proof plate (15), by motor car wheel (16), fixing seat (17), rear bolt (18), horizontal hunting hydraulic cylinder (19), preceding bolt (20), point fire-fighting Head (21), igniting outer tube (22), igniting inner sleeve (23), rotation conveying outer tube (24), interior nozzle boss (25), rotation conveying Inner sleeve (26), interior spray head (27), nozzle block (28), main jet pipe (29), gas supply pipe (30), rear positioning sleeve (31), rear cover (32), gas sealing circle (33), lubrication sealing inner ring (34), bearing positioning sleeve (35), housing (36), oxygen conveying pipe (37), Intermediate sleeve (38), oxygen seal circle (39), inward turning tube (40), outward turning tube (41), lubrication sealed outer ring (42), rotation support Bearing (43), front cover (44), key (45), driven gear (46), round nut (47), bottom fixed board (48), end face bearing block (49), end face bearing (50), inner ring positioning sleeve (51), horizontal pendulum moving axis (52), bottom positioning plate (53), horizontal hunting bearing (54), horizontal hunting support sleeve (55), side boring cover (56), vertical oscillation bearing (57), vertical oscillation main shaft (58), rotation are slowed down Machine (59), pressing plate (60), vertical plate (61), side plate (62), clamp nut (63), rear end cap (64), distributor bearing (65), every Core (70), oxygen hose (71), distributor are distributed from set (66), positioning jump ring (67), anti-tube (68), fuel gas conduit (69), gas Sealing ring (72), distributor housing (73), transition sleeve (74);
It is described that nozzle is supported by rotation conveying outer tube (24) and rotation conveying inner sleeve (26) composition bilayer sleeve;Oxygen exists Outer layer carries the combustion gas for being fluidized solid granule gun-mix refractory by rotation conveying inner sleeve (26), passes through interior nozzle boss (25) it is sprayed using interior spray head (27), into the mixed zone of main jet pipe (29) bore passage;Oxygen with constant pressure, by The internal layer of the outer layer and rotation conveying outer tube (24) of rotation conveying inner sleeve (26) and interior nozzle boss (25), the channel of composition, Into the outer layer by nozzle block (28) and interior spray head (27), multiple narrow spiral shape air ducts side by side are formed;Multiple igniting spray heads (21) it being evenly distributed on the excircle of main jet pipe (29), every igniting spray head (21) is supported by respective igniting outer tube (22), Outer tube (22) is lighted a fire simultaneously to igniting spray head (21), and oxygen and the uniform mixed airflow of combustion gas mixing are successively provided;By It lights a fire outer tube (22) and the bilayer sleeve of igniting inner sleeve (23) composition, oxygen is lighted a fire in internal layer when close in outer layer, combustion gas Spray head (21), bilayer sleeve switchs to single layer, after oxygen is quickly mixed with combustion gas, is transported to igniting spray head (21);Forward and backward pressing plate (60) housing (36) of rotatable bilayer sleeve synthesizer is compressed, pressing plate (60) is linked together with vertical pendulum moving frame (11), and making can Rotary double-layer casing synthesizer vertical oscillation synchronous with vertical pendulum moving frame (11);Vertical pendulum moving frame (11) is by vertical oscillation main shaft (58) it holds up, the both ends of vertical oscillation main shaft (58) are mounted on the inner hole of vertical oscillation bearing (57), side plate (62) and vertical Oscillating spindle (58) rigid connection, and compress the inner ring of vertical oscillation bearing (57);It installs the outer ring of vertical oscillation bearing (57) In the supported hole of vertical plate (61), side boring cover (56) and vertical plate (61) are rigidly connected, and compress the outer of vertical oscillation bearing (57) Circle;Vertical pendulum moving frame (11) is, as coercive mechanism, to make vertical direction swing at vertical plate (61) carrying of two sides;The bottom of vertical plate (61) It is fixed on the upper surface of horizontal hunting support plate (12), by locking pin (10), so that the cylinder base of vertical oscillation hydraulic cylinder (9) It is articulated and connected with horizontal hunting support plate (12);By upper lock shaft (8), so that on the piston rod of vertical oscillation hydraulic cylinder (9) Portion and vertical pendulum moving frame (11) are articulated and connected;When vertical oscillation hydraulic cylinder (9) is under fluid power effect, piston rod stretches, contracting campaign, makes Vertical pendulum moving frame (11) are obtained to swing above and below;Horizontal hunting support plate (12) and horizontal pendulum moving axis (52) are rigidly connected, horizontal hunting A set of horizontal hunting bearing (54) is respectively installed at the both ends of axis (52), and the inner ring of horizontal hunting support sleeve (55) installs two sets of horizontal pendulums Dynamic bearing (54), horizontal hunting support sleeve (55) are linked together by end face bearing block (49) with car body (1);Bottom fixed board (48) reinforce horizontal hunting support sleeve (55) and car body (1) bonding strength;Bottom positioning plate (53) and horizontal pendulum moving axis (52) are rigid Property connection, and compress the inner ring end face of lower horizontal oscillation bearing (54), make horizontal hunting bearing (54) relative to horizontal pendulum The axial direction of moving axis (52) is positioned;Bending moment power existing for the inside of horizontal hunting support plate (12), passes through horizontal pendulum moving axis (52) upper and lower two sets of horizontal hunting bearings (54) are passed to, then pass to horizontal hunting support sleeve (55), it is solid finally by bottom Fixed board (48) and end face bearing block (49), are transmitted on car body (1);The gravity of horizontal hunting support plate (12) is by end face bearing (50) it carries, then is transmitted on car body (1) by end face bearing block (49);Inner ring positioning sleeve (51) and horizontal hunting support sleeve (55), the inner ring of difference positioning end spherical bearing seat (49) upper and lower end panel;Fixing seat (17) is fixed on car body (1), is passed through The rigid body rear end of horizontal hunting hydraulic cylinder (19) is hinged on fixing seat (17) by bolt (18) afterwards;By preceding bolt (20) by water The piston rod front of flat oscillating motor (19) is hinged on horizontal hunting support plate (12);When horizontal hunting hydraulic cylinder (19) exists Under fluid power effect, piston rod stretches, contracting campaign, so that during horizontal hunting support plate (12) with the central axes of horizontal pendulum moving axis (52) is The heart makees horizontal hunting;Four sets of wheel mounts (2) are mounted on the edge of lower section four of car body (1), adhesion wheel (4) and by motor car wheel (16) by wheel mount (2), car body (1) rear portion and front are separately mounted to;Driving speed reducer (6) with motor is mounted on vehicle Body (1) is equipped with drive sprocket (7) on shaft;It is linked together, rotates synchronously by movable sprocket (3) and adhesion wheel (4);Chain The torque of drive sprocket (7) is transmitted to by movable sprocket (3) by item (5), so that adhesion wheel (4) is made positive and negative rotation, to make car body (1) make forward and backward movement, front of the fireguard (15) in car body (1).
2. ladle refractory lining flame gunning machine according to claim 1, it is characterized in that: the rotatable bilayer sleeve closes Grow up to be a useful person includes the oxygen that will be delivered to and to carry by oxygen conveying pipe (37) and gas supply pipe (30) and be fluidized solid powder The combustion gas of material, by rotation conveying inner sleeve (26) and rotation conveying outer tube (24) form can be defeated with rotary double-layer casing Out, oxygen is in outer layer, and combustion gas is in internal layer;Oxygen stream conveying conversion line is to reach by oxygen conveying pipe (37) by intermediate sleeve (38) and in the toroidal cavity of outward turning tube (41) composition;By the through-hole of multiple distribution rules on outward turning tube (41) component, Oxygen enters the circular passage of inward turning tube (40) and outward turning tube (41) composition, using rotation conveying inner sleeve (26) and revolves It transfers to send and be exported between outer tube (24);Intermediate sleeve (38) is not rotary part, and outward turning tube (41) is rotary part, in the two It between contact, is made of oxygen seal circle (39) multi-layer sealed, prevents oxygen leakage;Carry the combustion for being fluidized solid powder Gas enters back into inward turning tube (40) into the inner hole of rear cover (32) by gas supply pipe (30), conveys finally by rotation Inner sleeve (26) output;Rear cover (32) is not rotary part, and inward turning tube (40) is rotary part, and fuel gas transmission is not by rotating pipe Road enters rotating pipe, and there is Active Interface for junction;Prevent combustion gas from leaking from Active Interface, in rear cover (32) and inward turning Between tube (40) contact surface, there is the double-deck gas sealing circle (33) to seal;Intermediate sleeve (38) and oxygen conveying pipe (37) and housing (36) assembly is integrated, and two bearing positioning sleeves (35) are separately mounted to the two sides of intermediate sleeve (38), in the inner hole of housing (36), Two bearing positioning sleeves (35) contact positioning with the inside outer ring that two sets of rotating support shafts of front and back ends hold (43);Two bearings are fixed Contact surface between position set (35) and the inner hole of housing (36) has lubrication sealed outer ring (42) to play static seal effect, two bearings Contact surface between positioning sleeve (35) and outward turning tube (41) has lubrication sealing inner ring (34) to play dynamic sealing effect, prevents from rotating Lubricating grease leakage in spring bearing (43);Front end rotating support shaft is held the outer ring on the outside of (43) and is positioned by front cover (44), and preceding Lid (44) is connected as one with housing (36);The outside that rear end rotating support shaft holds (43) is positioned by rear cover (32), outside inner ring Circle is positioned by rear positioning sleeve (31);And rear cover (32) is linked together with housing (36), rear positioning sleeve (31) and outward turning tube (41) It is linked together;Driving gear (13) is mounted on the shaft with motor rotation speed reducer (59), and driving gear (13) drives quilt Moving gear (46) rotation;Driven gear (46) is linked together by key (45) with outward turning tube (41), and lateral surface is by round nut (47) positioning is compressed, the outer side contacts that medial surface and front end rotating support shaft hold (43) inner ring position.
3. ladle refractory lining flame gunning machine according to claim 1, it is characterized in that: the ignition gas distributor packet It has included through oxygen hose (71), fuel gas conduit (69), the oxygen that will be delivered to and combustion gas, has covered into close to oxygen conveying pipe (37) morely It is circular layout in peripheral circumferential, the bilayer sleeve for inner sleeve (23) composition of lighting a fire outer tube (22) and light a fire, oxygen is in outer layer, combustion Gas is in internal layer;Oxygen is introduced by oxygen hose (71), and by distributor housing (73), the oxygen chamber of core (70) is distributed into gas, Then it evenly distributes to every set, is exported by the bilayer sleeve outer layer that igniting outer tube (22) and igniting inner sleeve (23) form;Combustion Gas is introduced by fuel gas conduit (69), by the housing (73) of distributor, into the gas chamber of gas distribution core (70), is then uniformly divided The igniting inner sleeve (23) of the every set bilayer sleeve of dispensing exports;Distributor housing (73) is that rotary part, gas do not distribute core (70) it is linked together with rotation conveying outer tube (24), is rotary part;Distributor housing (73) and gas distribution core (70) it Between move cooperation, by the guarantees of two sets distributor bearings (65), multiple distributor sealing rings (72) prevent oxygen, combustion gas respectively from oxygen Chamber and gas chamber leakage;More set igniting outer tube (22) are connected by transition sleeve (74) with the oxygen chamber of gas distribution core (70), More set igniting inner sleeve (23) are connected with the gas chamber of gas distribution core (70);Separation sleeve (66) is by two sets of distributor bearings (65) Separate, rear end cap (64) compresses the inner ring of outside distributor bearing (65), and clamp nut (63) is by distributing core (70) with gas Be threadedly engaged, compress rear end cap (64) so that two sets distributor bearings (65) relative to gas distribution core (70) axial direction determine Position determines;Positioning jump ring (67) is caught in the card slot of housing (73), by the outer ring of two sets of distributor bearings (65), so that gas Core (70) and housing (73) are distributed, string quantity of motion is in very a small range to axial;Anti- tube (68) and housing (73) are rigidly connected, Anti- tube (68) is inserted into the hole of anti-pivoted frame (14), and the vertical plate (61) of anti-pivoted frame (14) and two sides is rigidly connected, so that housing (73) not with gas distribution core (70) rotation.
CN201910306195.5A 2019-04-15 2019-04-15 Ladle refractory lining flame gunning machine Pending CN109916180A (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112113431A (en) * 2020-10-26 2020-12-22 王世松 Flame gunning machine for refractory lining of industrial furnace

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112113431A (en) * 2020-10-26 2020-12-22 王世松 Flame gunning machine for refractory lining of industrial furnace

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