CN1195078C - Integrated metal mixer depositing process - Google Patents

Abstract

The present invention discloses an integrated casting process for a metal mixer, which is characterized in that the present invention comprises the following steps: light casting materials are laid at the bottoms of a mixer and an iron notch, and then light heat-insulating bricks are built; the bottom die of the bottom of the mixer is supported, and then the working layer at the bottom of the mixer is cast; a die plate is laid, and the bottom of the iron notch is cast with the casting materials; the bottom, etc., are disassembled after the casting materials are naturally cured; finally, after the inner part of the mixer is cleaned, a mixer baking pipe is installed, and then the mixer starts to be baked according to a mixer baking curve. Due to the adoption of the integrated casting method in the present invention, the metal mixer has the advantages of short working procedure time, good integrated performance of a lining, good heat insulation, fuel saving, strong repairing performance, safe and reliable operation, extension of service life and cost reduction.

Description

Integrated metal mixer depositing process

Technical field

The present invention relates to a kind of hot metal mixer casting stove method, relate to a kind of integrated metal mixer depositing process specifically.

Background technology

At present, the construction of hot metal mixer liner commonly used all is with brick, program be earlier shop furnace bottom thermofin, build permanent layer, furnace bottom working lining, built, block front-back wall working lining (dilatation joint filler), build bottom of trench and wall working lining, casting house and chew installation, the built of shell, change arch gusset, headwall and the casting house vault is built by laying bricks or stones, built, encircle mould, vault and build by laying bricks or stones, tear open and encircle mould, filleting, tear bow member, cleaning, mounting arch boiler tube, baker open.The characteristics of this casting stove method are that furnace bottom part does not need built, and shortcoming is: 1, ore deposit day lasting, job schedule is (a general stove is brick than pouring into a mould the time of Duoing with about 15 days) very slowly.2, the construction process unsafe factor is many, and the fragment of brick casualty accident often takes place.3, fragment of brick everywhere thickness can not design and build by laying bricks or stones according to stove fact damaged situation.4, there are a large amount of wedge type bricks, arch angle brick to need cutting, polishing, hot-tempered sound greatly.5, stay the brickwork joint of a treaty 2mm between masonry brick and the brick inevitably, this is the weakest link of masonry, and the damage of masonry is all from brickwork joint.6, heat insulation effect is poor, and casing temperature is low, can not protect box hat to have well and waste a large amount of coal gas.7, furnace campaign is short.

Summary of the invention

Purpose of the present invention just is to provide a kind of can simplify blast furnace mixer casting technology, improves the casting furnaceman and does security, reduces labor strength, speeds casting stove progress, improves the furnace lining quality, increases the service life the integrated metal mixer depositing process of energy efficient.

Purpose of the present invention can realize by following measure:

The present invention includes following steps:

Lightening casting material at the bottom of a, shop furnace bottom, the iron notch is built insulating brick;

Lightening casting material adds 6%～7% water, is paved into even one deck by design thickness and position, with instrument compactings such as chi bars, wipes out wholely, builds one deck light-weight insulating brick on the lightweight bed of material of having completed, bonds with chamotte;

B, a bed die, working lining at the bottom of the pouring furnace

Furnace bottom mould skeleton tiltedly draws with reinforcing bar and is welded on the furnace wall with pre-ready-made rim, rim two ends, between rim with give the standard form shop of making just after, just can pour into a mould bed die;

C, an iron notch bed die water at the bottom of the iron notch

Furnace bottom pours, and just carries out the steady job of iron notch end template at once, and template adopts and falls apart, and welded reinforcement presses down and fixes template on the steel plate of iron notch both sides, just can pour into a mould then;

D, tear open the bottom mould

Treat furnace bottom natural curing after 16～36 hours, just can the demoulding; Earlier the lacing wire at rim two ends is cut off, with the rim of slinging of driving a vehicle, with crowbar piece of standard form is levered up again, earlier reinforcing bar is sliced off at the bottom of the iron notch, template can lever up one by one;

E, stove front-back wall and headwall weldering nut are built light cinder brick, fill out light material

At stove front-back wall and headwall weldering nut, on the screw mandrel of having measured length on the nut of corresponding position, press design attitude, thickness is built light-weight insulating brick, fills out light material, requires brickwork joint to be not more than 2MM, light material is wanted the densification reality;

F, fixedly front-back wall and headwall, cast furnace wall, form removal

Mould adopts the template of loosing herein, add two-layer baffle plate and pass through screw mandrel, fixed by nut on furnace wall, by adding mat and transferring screw to adjust the template exact position, reach the thick poison of design, must twine two-layer malthoid on the screw mandrel, be beneficial to extract, template surface will nail on one deck malthoid, and mould fixes and can pour into a mould, and natural curing is after 16～36 hours, get final product the demoulding, screw mandrel also will be extracted during the demoulding;

Fiberboard is pasted in g, the perforate of furnace roof two ends, the weldering anchoring piece

Respectively cut a hole at the furnace roof two ends, the diameter in hole is 400MM～500MM, so that the cast furnace roof is expected at present; When pasting fiber, the fine brush of water glass adhesive one time of furnace roof box hat, above then fiberboard being spread out in, compacting can steadily be stained with, and has pasted fiberboard earlier, the corresponding anchoring piece of burn-oning on design attitude;

H, Zhi Dingmo, the cast furnace roof is torn backform open

The top die skeleton also adopts the rim that makes in advance, and the wheel spider is located with reinforcing bar on crossbeam, the lock piece frame is on the front and back furnace wall that has poured into, and the standard that nails on above the rim falls apart, shop, surface one deck malthoid, spread malthoid and just can pour into a mould, after the maintenance, got final product the demoulding then;

Installing of I, iron notch mould, cast, form removal

Because the iron notch shape is not planned, must on-the-spotly survey and draw, the scene installs as mould, cast maintenance, the demoulding.

After J, screw mandrel are extracted, each root stays next hole, also stay two-layer malthoid inside, after crossbeam was extracted, each root beam also stayed two hitch, must handle, with air drill to living the hole perforating of former screw mandrel, malthoid smash claw after, use closely knitly with the material ramming of this identical trade mark in position, hitch also is like this; After the stove internal cleaning is clean, the baker pipe is installed, is begun baker according to drying out curve.

Described in the present invention in the step g diameter in each cut-out hole of furnace roof two ends be 400～500MM, certainly, diameter also can be bigger as required or littler.The concentration of water glass adhesive can adopt conventional concentration to get final product as required in addition.

The present invention makes the casting furnaceman preface time of hot metal mixer short owing to adopt whole casting stove method, and the furnace lining overall performance is good, stove good heat insulating, fuel economy; And after the stove local damage, also can this operation carry out sectional repair, but toolability is strong, the stove operation is safer reliable, increases factory work-ing life, has reduced cost.

Embodiment

The present invention does with detailed description below in conjunction with embodiment:

Embodiment 1: the present invention includes following steps:

Lightening casting material at the bottom of a, shop furnace bottom, the iron notch is built insulating brick;

Lightening casting material adds 6% water (can pinch agglomerating getting final product), is paved into even one deck by design thickness and position, with instrument compactings such as chi bars, wipes out whole.On the lightweight bed of material of having completed, build one deck light-weight insulating brick, with the chamotte bonding, brickwork joint otherwise greater than 2MM.

B, a bed die, working lining at the bottom of the pouring furnace

Furnace bottom mould skeleton tiltedly draws with reinforcing bar and is welded on the furnace wall with pre-ready-made rim, rim two ends, between rim with give the standard form shop of making just after, just can pour into a mould bed die.

C, an iron notch bed die water at the bottom of the iron notch

Furnace bottom pours, and just carries out the steady job of iron notch end template at once, and template adopts and falls apart, and welded reinforcement presses down and fixes template on the steel plate of iron notch both sides, just can pour into a mould then.

D, tear open the bottom mould

Treat that furnace bottom natural curing, just can the demoulding after 24 hours (summer is short, and winter is long).Earlier the lacing wire at rim two ends is cut off, with the rim of slinging of driving a vehicle, with crowbar piece of standard form is levered up again, earlier reinforcing bar is sliced off at the bottom of the iron notch, template can lever up one by one.

E, stove front-back wall and headwall weldering nut are built light cinder brick, fill out light material

At stove front-back wall and headwall weldering nut, on the screw mandrel of having measured length on the nut of corresponding position, press design attitude, thickness is built light-weight insulating brick, fills out light material, requires brickwork joint to be not more than 2MM, light material is wanted the densification reality.

F, fixedly front-back wall and headwall, cast furnace wall, form removal

Mould adopts the template of loosing herein, add two-layer baffle plate and pass through screw mandrel, fixed by nut on furnace wall, by adding mat and transferring screw to adjust the template exact position, reach the thick poison of design, must twine two-layer malthoid on the screw mandrel, be beneficial to extract, template surface will nail on one deck malthoid, and mould fixes and can pour into a mould, and natural curing is after 16～36 hours, get final product the demoulding, screw mandrel also will be extracted during the demoulding.

Fiberboard is pasted in G, the perforate of furnace roof two ends, the weldering anchoring piece

Respectively cut a diameter 400MM (big stove can be opened bigger, and the bogey hole is corresponding smaller) at the furnace roof two ends, so that the cast furnace roof is expected at present; When pasting fiber, earlier the furnace roof box hat with the fine brush of water glass adhesive (concentration is through adjusting meticulously) a time, above then fiberboard being spread out in, compacting can steadily be stained with, and has pasted fiberboard, the anchoring piece of the correspondence of burn-oning on design attitude.

H, Zhi Dingmo, the cast furnace roof is torn backform open

The top die skeleton also adopts the rim that makes in advance, and the wheel spider is located with reinforcing bar on crossbeam, the lock piece frame is on the front and back furnace wall that has poured into, and the standard that nails on above the rim falls apart, shop, surface one deck malthoid, spread malthoid and just can pour into a mould, after the maintenance, got final product the demoulding then.

Installing of I, iron notch mould, cast, form removal

Because the iron notch shape is not planned, must on-the-spotly survey and draw, the scene installs as mould, cast maintenance, the demoulding.

After J, screw mandrel are extracted, each root stays next hole, also stay two-layer malthoid inside, after crossbeam was extracted, each root beam also stayed two hitch, must handle, with air drill to living the hole perforating of former screw mandrel, malthoid smash claw after, use closely knitly with the material ramming of this identical trade mark in position, hitch also is like this.After the stove internal cleaning is clean, the baker pipe is installed, is begun baker according to drying out curve.

Embodiment 2: the present invention includes following steps

Lightening casting material at the bottom of a, shop furnace bottom, the iron notch is built thermal insulation layer;

Lightening casting material adds 7% water (can pinch agglomerating getting final product), is paved into even one deck by design thickness and position, with instrument compactings such as chi bars, wipes out whole.On the lightweight bed of material of having completed, build one deck light-weight insulating brick, with the chamotte bonding, brickwork joint otherwise greater than 2MM.

B, a bed die, working lining at the bottom of the pouring furnace

Furnace bottom mould skeleton tiltedly draws with reinforcing bar and is welded on the furnace wall with pre-ready-made rim, rim two ends, between rim with give the standard form shop of making just after, just can pour into a mould bed die.

C, an iron notch bed die water at the bottom of the iron notch

Furnace bottom pours, and just carries out the steady job of iron notch end template at once, and template adopts and falls apart, and welded reinforcement presses down and fixes template on the steel plate of iron notch both sides, just can pour into a mould then.

D, tear open the bottom mould

Treat that furnace bottom natural curing, just can the demoulding after 30 hours (summer is short, and winter is long).Earlier the lacing wire at rim two ends is cut off, with the rim of slinging of driving a vehicle, with crowbar piece of standard form is levered up again, earlier reinforcing bar is sliced off at the bottom of the iron notch, template can lever up one by one.

E, stove front-back wall and headwall weldering nut are built light cinder brick, fill out light material

Stove front-back wall and headwall weldering nut, on the screw mandrel of having measured length on the nut of corresponding position, press design attitude, thickness is built light-weight insulating brick, fills out light material, requires brickwork joint to be not more than 2MM, light material is wanted the densification reality.

F, fixedly front-back wall and headwall, cast furnace wall, form removal

Mould adopts the template of loosing herein, add two-layer baffle plate and pass through screw mandrel, fixed by nut on furnace wall, by adding mat and transferring screw to adjust the template exact position, reach the thick poison of design, must twine two-layer malthoid on the screw mandrel, be beneficial to extract, template surface will nail on one deck malthoid, and mould fixes and can pour into a mould, and natural curing is after 16～36 hours, get final product the demoulding, screw mandrel also will be extracted during the demoulding.

Fiberboard is pasted in G, the perforate of furnace roof two ends, the weldering anchoring piece

Respectively cut a diameter 500MM (big stove can be opened bigger, and the bogey hole is corresponding smaller) at the furnace roof two ends, so that the cast furnace roof is expected at present; When pasting fiber, earlier the furnace roof box hat with the fine brush of water glass adhesive (concentration is through adjusting meticulously) a time, above then fiberboard being spread out in, compacting can steadily be stained with, and has pasted fiberboard, the anchoring piece of the correspondence of burn-oning on design attitude.

H, Zhi Dingmo, the cast furnace roof is torn backform open

The top die skeleton also adopts the rim that makes in advance, and the wheel spider is located with reinforcing bar on crossbeam, the lock piece frame is on the front and back furnace wall that has poured into, and the standard that nails on above the rim falls apart, shop, surface one deck malthoid, spread malthoid and just can pour into a mould, after the maintenance, got final product the demoulding then.

Installing of I, iron notch mould, cast, form removal

Because the iron notch shape is not planned, must on-the-spotly survey and draw, the scene installs as mould, cast maintenance, the demoulding.

After J, screw mandrel are extracted, each coring stays next hole, also stay two-layer malthoid inside, after crossbeam was extracted, each root beam also stayed two hitch, must handle, with air drill to living the hole perforating of former screw mandrel, malthoid smash claw after, use closely knitly with the material ramming of this identical trade mark in position, hitch also is like this.After the stove internal cleaning is clean, the baker pipe is installed, is begun baker according to drying out curve.

Claims (1)

1, a kind of integrated metal mixer depositing process, it is characterized in that: it may further comprise the steps:

Lightening casting material at the bottom of a, shop furnace bottom, the iron notch is built insulating brick; Lightening casting material adds 6%～7% water, is paved into even one deck by design thickness and position, with instrument compactings such as chi bars, wipes out wholely, builds one deck light-weight insulating brick on the lightweight bed of material of having completed, bonds with chamotte; Described brickwork joint otherwise greater than 2MM;

B, bed die, working lining furnace bottom mould skeleton is with pre-ready-made rim at the bottom of the pouring furnace, the rim two ends are tiltedly drawn with reinforcing bar and are welded on the furnace wall, between rim with give the standard form shop made from regard to after, just can pour into a mould bed die;

C, iron notch bed die, water iron notch at the bottom of furnace bottom pour, just carry out the steady job of iron notch end template at once, template adopts and falls apart, welded reinforcement presses down and fixes template on the steel plate of iron notch both sides, just can pour into a mould then;

D, tear the bottom mould open and treat furnace bottom natural curing after 16～36 hours, just can the demoulding; Earlier the lacing wire at rim two ends is cut off, with the rim of slinging of driving a vehicle, with crowbar piece of standard form is levered up again, earlier reinforcing bar is sliced off at the bottom of the iron notch, template can lever up one by one;

E, stove front-back wall and headwall weldering nut are built light cinder brick, fill out light material at stove front-back wall and headwall weldering nut, on the screw mandrel of having measured length on the nut of corresponding position, press design attitude, thickness and build light-weight insulating brick, fill out light material, require brickwork joint to be not more than 2MM, light material wants densification real;

F, fixedly front-back wall and headwall, the cast furnace wall, the template of loosing is adopted in form removal mould herein, add two-layer baffle plate and pass through screw mandrel, fixed by nut on furnace wall, by adding mat and transferring screw to adjust the template exact position, reach the thick poison of design, must twine two-layer malthoid on the screw mandrel, be beneficial to extract, template surface will nail on one deck malthoid, and mould fixes and can pour into a mould, and natural curing is after 16～36 hours, get final product the demoulding, screw mandrel also will be extracted during the demoulding;

Fiberboard is pasted in g, the perforate of furnace roof two ends, and the weldering anchoring piece respectively cuts a hole at the furnace roof two ends, and the diameter in hole is 400MM～500MM, so that the cast furnace roof is expected at present; When pasting fiber, the fine brush of water glass adhesive one time of furnace roof box hat, above then fiberboard being spread out in, compacting can steadily be stained with, and has pasted fiberboard earlier, the corresponding anchoring piece of burn-oning on design attitude;

H, Zhi Dingmo, the cast furnace roof, tear backform top die skeleton open and also adopt the rim that makes in advance, the wheel spider is located with reinforcing bar on crossbeam, the lock piece frame is on the front and back furnace wall that has poured into, the standard that nails on above the rim falls apart, and shop, surface one deck malthoid has been spread malthoid and just can have been poured into a mould, after the maintenance, get final product the demoulding then;

Installing of I, iron notch mould, cast, form removal is not because the iron notch shape plans that must on-the-spotly survey and draw, the scene installs as mould, cast maintenance, the demoulding.

After J, screw mandrel are extracted, each root stays next hole, also stay two-layer malthoid inside, after crossbeam was extracted, each root beam also stayed two hitch, must handle, with air drill to living the hole perforating of former screw mandrel, malthoid smash claw after, use closely knitly with the material ramming of this identical trade mark in position, hitch also is like this; After the stove internal cleaning is clean, the baker pipe is installed, is begun baker according to drying out curve.