CN100575504C - Iron runner exempts to toast mould material and lining technology is made in the cast of single iron mouth blast furnace iron outlet groove - Google Patents
Iron runner exempts to toast mould material and lining technology is made in the cast of single iron mouth blast furnace iron outlet groove Download PDFInfo
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- CN100575504C CN100575504C CN200610086925A CN200610086925A CN100575504C CN 100575504 C CN100575504 C CN 100575504C CN 200610086925 A CN200610086925 A CN 200610086925A CN 200610086925 A CN200610086925 A CN 200610086925A CN 100575504 C CN100575504 C CN 100575504C
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Abstract
The present invention relates to a kind of be used for 1000 cubic metres of volumes with the iron notch blast furnace iron runner that places an order make lining exempt from toast iron runner castable and exempt to toast the processing method that iron runner castable is constructed the casting house ditch lining of Dan Tiekou blast furnace with this.Adopt the mould material of the present invention program's preparation to can be used in the cast-in-site of casting house liner, and after sclerosis, need not baking and can pass through molten iron, thereby realized that single iron notch blast furnace iron outlet groove liner employing mould material constructs or keep in repair.Adopt the casting construction to make lining, constructed ditch lining is all very fine and close from the surface to inside, do not exist ramming mass to have only the closely knit and inner loose problem in surface, so iron runner can prolong work-ing life significantly, the iron runner materials consumption of unit iron output also reduces significantly.This not only brings the raising of economic benefit, also has resources conservation and the benefit that reduces waste residue on the environment protection significance, and the labour intensity of stokehold workman's maintenance service also reduces significantly.
Description
Technical field
The present invention relates to iron runner and exempt to toast the cast of mould material and single iron mouth blast furnace iron outlet groove and make the lining processing method, belong to the Dan Tiekou blast furnace iron outlet groove that taps a blast furnace and make lining technology and make lining material therefor technical field.
Background technology
Modern big blast furnace iron outlet groove generally uses fine Al2O3-SiC-C matter to hang down cement deposit material.Because mould material pouring density height, with respect to the fire-resistance rammed mass with material, refractory castable is more anti-to be washed away, thereby longer service life.But the iron runner of traditional Al2O3-SiC-C matter low-cement refractory pouring material cast must just can come into operation through processes such as maintenance sclerosis, baking dryings, and iron runner needs (1 day even pitch time a couple of days) for a long time from beginning cast (repairing) to come into operation (beginning to tap a blast furnace).
General big blast furnace all has the casting house more than 2, therefore when iron runner wherein must be made lining again and maybe must repair, as long as block behind the iron notch of this iron runner to this iron runner pour into a mould, maintenance sclerosis, baking be dry.Meanwhile, other iron notchs tap a blast furnace normally, do not influence the ordinary production of blast furnace.
But volume is the medium and small blast furnace below 1000 cubic metres generally is designed to single iron notch.Owing to have only an iron notch, to tap a blast furnace normally and have only about 1～3 hour at interval, the plan damping down time generally also has only 8～10 hours, can not guarantee if having time therefore that general mould material is made to serve as a contrast needed maintenance, storing time.Therefore, the blast furnace that Dan Tiekou taps a blast furnace generally adopts ramming mass to construct the iron runner liner because ramming mass generally adopts resin or tar combination, needn't toast after the ramming construction or slightly the short period of time baking can directly immediately cross molten iron.
But there is too short problem in work-ing life in ramming mass, and the ramming mass that is used for main casting house generally has only 1～15 day work-ing life, and major part is all at 3～5 days.This be because the ditch lining refractories of ramming generally just ditch basal surface one deck is closely knit relatively, and the top layer is following and ditch group position is all very loose, not anti-washing away.And because the iron runner of ramming is too short work-ing life, it is too frequent to cause casting house to repair, and the stokehold labor strength is too big, makes lining ramming quality and is difficult to especially guarantee.
Therefore how effectively solving the problem in single iron mouth blast furnace iron outlet groove life-span receives much concern.But up to the present, also be not fit to iron runner make lining or repair exempt to toast mould material, do not have single iron mouth blast furnace iron runner to adopt yet and exempt to toast process program and the practice that mould material is made lining.
Summary of the invention
The technical problem to be solved in the present invention is, proposition can be constructed with casting, setting and harden speed is fast, and do not need baking or only need utmost point short period of time baking (in 1 hour) promptly can by molten iron exempt from toast the preparation of iron runner castable and use this to exempt to toast the technical scheme that iron runner castable is constructed single iron notch blast furnace iron runner refractory lining.
The technical solution adopted for the present invention to solve the technical problems is:
One of purpose of the present invention exempts to toast iron runner castable with what the iron notch blast furnace iron runner that places an order was made lining for above 1000 cubic metres for a kind of volume 500 of being used for is provided, and is composed of the following components:
18～25 parts in the brown corundum of granularity 8～5mm,
10～18 parts in the brown corundum of granularity 5～3mm,
15～25 parts in the brown corundum of granularity 3～1mm,
3～9 parts in the brown corundum of granularity 1～0mm,
955～8 parts of the SiC of granularity 1～0mm,
95 10～15 parts of granularity 325 purpose SiC,
3～8 parts of granularity 325 purpose fused white corundums,
2～4 parts of the hard pitches of granularity 0.5mm,
2～4 parts of silicon powders,
2～4 parts of raw claies,
97 2～3 parts of Pure Silicon Metals,
0.05～0.15 part of polypropylene fibre,
0.5～1 part of activated magnesia,
2～5 parts of industrial phosphoric acid solution,
5～8 parts in resol.
Purpose of the present invention two for providing a kind of 500 cubic metres of volumes of being used for to exempt to toast iron runner castable with what the iron notch blast furnace iron runner that places an order was made lining, composed of the following components:
18～25 parts of the alumines of granularity 8～5mm,
10～18 parts of the alumines of granularity 5～3mm,
15～25 parts of the alumines of granularity 3～1mm,
3～9 parts of the alumines of granularity 1～0mm,
5～8 parts of the SiC90 of granularity 1～0mm,
10～15 parts of granularity 325 purpose SiC90,
3～8 parts in granularity 325 purposes palm fibre corundum,
2～4 parts of the hard pitches of granularity 0.5mm,
2～4 parts of silicon powders,
2～4 parts of raw claies,
972～3 parts of Pure Silicon Metals,
0.05～0.15 part of polypropylene fibre,
0.5～1 part of activated magnesia,
2～5 parts of industrial phosphoric acid solution,
5～8 parts in resol.
Purpose of the present invention three for a kind of processing method that single iron notch blast furnace iron outlet groove is made lining that is used for is provided, for the blast furnace that has only an iron notch, adopt and exempt to toast the casting house liner that blast furnace was constructed or repaired to mould material, as follows in steps; At first the bottom of trench residue is cleaned out; Propped up mould in advance; Exempting from of to stirring then toasted the iron runner castable mortar and is distributed in the mould; Smash mould material with the shake of insert vibrating head again, bubble is fully closely knit to mould material in the discharge mould material.
The particular content of technical solution of the present invention is, selecting corundum or high-alumina refractory aggregate for use is aggregate, SiC, fused white corundum powder, raw clay, hard pitch powder, metal Si powder are powder, with anhydrous low viscosity resol and industrial phosphoric acid solution is mobility donor, do stiffening agent with active magnesia powder, preparation can be used in cast-in-site and need not long-time baking can be by the refractory castable of molten iron.Exempt to toast mould material to 1000m with this
3Serve as a contrast or repair with integrated poured the making of the casting house of the iron mouth blast furnace that places an order.
Preceding 13 kinds of material mixing in the above-mentioned batching evenly become Preblend standby, during use the industrial phosphoric acid solution of Preblend and the 14th and 15 indication and resol are mixed into mortar and pour into a mould.
Adopt and above-mentionedly exempt to toast iron runner castable to carry out the technology that single iron mouth blast furnace iron outlet groove makes lining as follows:
Iron runner is made lining or is repaired, and can be arranged in twice pitch time of tapping a blast furnace to implement, and also can be arranged in the special maintenance downtime and construct.
Iron runner ditch type profile figure as shown in Figure 1.1 is template among Fig. 1, the 2nd, exempt to toast castable in main trough, and the 3rd, bottom of trench permanent layer refractory brick.
During the iron runner casting and constructing, at first the bottom of trench residue is cleaned out; Propped up mould (wooden model or punching block, the template inwall should be brushed machine oil in advance so that the demoulding) in advance, then the mortar that stirs has been distributed in the mould, smash mould material with the shake of insert vibrating head again, bubble is fully closely knit to mould material in the discharge mould material.Iron runner bottom of trench and ditch outer leaf thickness arrange that according to on-site actual situations general bottom of trench cast thickness is 400～550mm, and the furrow bank gauge control is more than 300mm.
Behind the casting, under the effect of iron runner waste heat, or under the effect of solidifying agent, mould material was promptly hardened through very short time (in 1 hour), got final product the demoulding this moment.
Substantially there is not moisture in the lining because newly make, so do not need baking can directly lead to iron (cold ditch is made lining or ditch lining when thicker, if conditions permit can be considered to carry out the suitable short period of time and be toasted).
Employing exempts to toast iron runner castable, and to carry out the technology that single iron mouth blast furnace iron outlet groove repairs as follows:
Repair the position particular case as required, can select the formwork cover to water and repair or manually smear (ramming) repairing.
Cover waters method for repairing and mending and tap drain and makes that to serve as a contrast technology similar, as shown in Figure 2.1 is mould among Fig. 2, the 2nd, and the residual lining of iron runner, the 3rd, be bottom of trench permanent layer refractory brick.The filled with mortar that stirs between the residual lining, is smash mould material with the shake of insert vibrating head again in mould and ditch, bubble is fully closely knit to mould material in the discharge mould material.Behind the casting, under the effect of the residual lining waste heat of iron runner, or under the effect of solidifying agent, mould material was promptly hardened through very short time (in 1 hour), and get final product the demoulding this moment, and the iron runner after the demoulding can come into operation immediately.
If iron runner is local damage, need the scope of repairing less, can adopt above-mentioned mould material, the method that employing is manually smeared or spade is patted is carried out sectional repair, does not need to use mould.The iron runner of repairing after neat can come into operation immediately.
The invention has the advantages that:
1, according to environment for use (furnace volume size) requirement, material batching material can be adjusted;
2, mould material cast back is under the effect of stiffening agent, very soon can self-hardening;
3, mould material can be hardened under the effect of iron runner waste heat faster;
4, the mould material after the sclerosis does not need just can directly cross molten iron through special baking;
5, mould material does not need special baking, has shortened the time that iron runner is made lining or repaired greatly, thereby has made to have only the medium and small blast furnace iron runner of an iron notch can use mould material to construct the iron runner liner;
6, owing to adopt the casting construction to make lining, constructed ditch lining is all very fine and close from the surface to inside, does not exist ramming mass to have only the closely knit and inner loose problem in surface, so iron runner can prolong work-ing life significantly, and can reach 3～6 months work-ing life;
7, because the ditch that mould material is constructed serves as a contrast the ditch lining of constructing much larger than ramming mass work-ing life, so the labour intensity of stokehold workman's maintenance service reduces significantly.
8, because the ditch that mould material is constructed serves as a contrast the ditch lining of constructing much larger than ramming mass work-ing life, therefore the iron runner materials consumption of unit iron output also reduces significantly, not only bring the raising of economic benefit, also have resources conservation and the benefit that reduces waste residue on the environment protection significance.
Description of drawings
Fig. 1 is a synoptic diagram of the present invention.
Fig. 2 is a synoptic diagram of the present invention.
The present invention is further described below in conjunction with drawings and Examples.
Embodiment
Embodiment one
For volume at 500m
3～1000m
3Between blast furnace, the material mixture ratio that is used for tap drain cast is as follows:
Preceding 13 kinds of material mixing in the above-mentioned batching evenly become Preblend standby, during use the industrial phosphoric acid solution of Preblend and the 14th and 15 indication and resol are mixed into mortar and pour into a mould.
Employing is exempted to toast iron runner castable and is carried out iron runner to make the technology of lining as follows:
Iron runner ditch type profile figure as shown in Figure 1.1 is template among Fig. 1, the 2nd, exempt to toast castable in main trough, and the 3rd, bottom of trench permanent layer refractory brick.
During the iron runner casting and constructing, at first the bottom of trench residue is cleaned out; Propped up mould (wooden model or punching block, the template inwall should be brushed machine oil in advance so that the demoulding) in advance, then the mortar that stirs has been distributed in the mould, smash mould material with the shake of insert vibrating head again, bubble is fully closely knit to mould material in the discharge mould material.Iron runner bottom of trench and ditch outer leaf thickness arrange that according to on-site actual situations general bottom of trench cast thickness is 400～550mm, and the furrow bank gauge control is more than 300mm.
Behind the casting, under the effect of iron runner waste heat, or under the effect of solidifying agent, mould material was promptly hardened through very short time (in 1 hour), got final product the demoulding this moment.
Substantially there is not moisture in the lining because newly make, so do not need baking can directly lead to iron (cold ditch is made lining or ditch lining when thicker, if conditions permit can be considered to carry out the suitable short period of time and be toasted).
Employing exempts to toast iron runner castable, and to carry out the technology that iron runner repairs as follows:
Repair the position particular case as required, can select the formwork cover to water and repair or manually smear (ramming) repairing.
Cover waters method for repairing and mending and tap drain and makes that to serve as a contrast technology similar, as shown in Figure 2.1 is mould among Fig. 2, the 2nd, and the residual lining of iron runner, the 3rd, be bottom of trench permanent layer refractory brick.The filled with mortar that stirs between the residual lining, is smash mould material with the shake of insert vibrating head again in mould and ditch, bubble is fully closely knit to mould material in the discharge mould material.Behind the casting, under the effect of the residual lining waste heat of iron runner, or under the effect of solidifying agent, mould material was promptly hardened through very short time (in 1 hour), and get final product the demoulding this moment, and the iron runner after the demoulding can come into operation immediately.
If iron runner is local damage, need the scope of repairing less, can adopt above-mentioned mould material, the method that employing is manually smeared or spade is patted is carried out sectional repair, does not need to use mould.The iron runner of repairing after neat can come into operation immediately.
Embodiment two
For furnace volume at 500m
3Following blast furnace, the material mixture ratio that is used for the tap drain cast is as follows:
Preceding 13 kinds of material mixing in the above-mentioned batching evenly become Preblend standby, during use the industrial phosphoric acid solution of Preblend and the 14th and 15 indication and resol are mixed into mortar and pour into a mould.
Employing is exempted to toast iron runner castable and is carried out iron runner to make the technology of lining as follows:
Iron runner ditch type profile figure as shown in Figure 1.1 is template among Fig. 1, the 2nd, exempt to toast castable in main trough, and the 3rd, bottom of trench permanent layer refractory brick.
During the iron runner casting and constructing, at first the bottom of trench residue is cleaned out; Propped up mould (wooden model or punching block, the template inwall should be brushed machine oil in advance so that the demoulding) in advance, then the mortar that stirs has been distributed in the mould, smash mould material with the shake of insert vibrating head again, bubble is fully closely knit to mould material in the discharge mould material.Iron runner bottom of trench and ditch outer leaf thickness arrange that according to on-site actual situations general bottom of trench cast thickness is 400～550mm, and the furrow bank gauge control is more than 300mm.
Behind the casting, under the effect of iron runner waste heat, or under the effect of solidifying agent, mould material was promptly hardened through very short time (in 1 hour), got final product the demoulding this moment.
Substantially there is not moisture in the lining because newly make, so do not need baking can directly lead to iron (cold ditch is made lining or ditch lining when thicker, if conditions permit can be considered to carry out the suitable short period of time and be toasted).
Employing exempts to toast iron runner castable, and to carry out the technology that iron runner repairs as follows:
Repair the position particular case as required, can select the formwork cover to water and repair or manually smear (ramming) repairing.
Cover waters method for repairing and mending and tap drain and makes that to serve as a contrast technology similar, as shown in Figure 2.1 is mould among Fig. 2, the 2nd, and the residual lining of iron runner, the 3rd, be bottom of trench permanent layer refractory brick.The filled with mortar that stirs between the residual lining, is smash mould material with the shake of insert vibrating head again in mould and ditch, bubble is fully closely knit to mould material in the discharge mould material.Behind the casting, under the effect of the residual lining waste heat of iron runner, or under the effect of solidifying agent, mould material was promptly hardened through very short time (in 1 hour), and get final product the demoulding this moment, and the iron runner after the demoulding can come into operation immediately.
If iron runner is local damage, need the scope of repairing less, can adopt above-mentioned mould material, the method that employing is manually smeared or spade is patted is carried out sectional repair, does not need to use mould.The iron runner of repairing after neat can come into operation immediately.
Claims (7)
1. one kind is used for volume 500 and exempts to toast iron runner castable with what the iron notch blast furnace iron runner that places an order was made lining for above 1000 cubic metres, it is characterized in that composed of the following components:
18～25 parts in the brown corundum of granularity 8～5mm,
10～18 parts in the brown corundum of granularity 5～3mm,
15～25 parts in the brown corundum of granularity 3～1mm,
3～9 parts in the brown corundum of granularity 1～0mm,
5～8 parts of the SiC95 of granularity 1～0mm,
10～15 parts of granularity 325 purpose SiC95,
3～8 parts of granularity 325 purpose fused white corundums,
2～4 parts of the hard pitches of granularity 0.5mm,
2～4 parts of silicon powders,
2～4 parts of raw claies,
97 2～3 parts of Pure Silicon Metals,
0.05～0.15 part of polypropylene fibre,
0.5～1 part of activated magnesia,
2～5 parts of industrial phosphoric acid solution,
5～8 parts in resol.
2. one kind is used for volume 500m
3Exempt to toast iron runner castable with what the iron notch blast furnace iron runner that places an order was made lining, it is characterized in that composed of the following components:
18～25 parts of the alumines of granularity 8～5mm,
10～18 parts of the alumines of granularity 5～3mm,
15～25 parts of the alumines of granularity 3～1mm,
3～9 parts of the alumines of granularity 1～0mm,
5～8 parts of the SiC90 of granularity 1～0mm,
10～15 parts of granularity 325 purpose SiC90,
3～8 parts in granularity 325 purposes palm fibre corundum,
2～4 parts of the hard pitches of granularity 0.5mm,
2～4 parts of silicon powders,
2～4 parts of raw claies,
97 2～3 parts of Pure Silicon Metals,
0.05～0.15 part of polypropylene fibre,
0.5～1 part of activated magnesia,
2～5 parts of industrial phosphoric acid solution,
5～8 parts in resol.
3. according to claim 1 and 2ly exempt to dry by the fire the roasting mould material of iron runner, it is characterized in that: industrial phosphoric acid in the said components and resol are the used wedding agent of mould material, this has guaranteed that mould material is when having flowability, basic moisture-free in the material, thereby guarantee that constructed iron runner ditch lining can exempt baking coming into operation before, directly the mistake molten iron.
4. one of a use such as above-mentioned claim are described exempts to toast iron runner castable and is used for the processing method that single iron notch blast furnace iron outlet groove is made lining, it is characterized in that: for the blast furnace that has only an iron notch, adopt the above-mentioned casting house liner of exempting to toast iron runner castable cast blast furnace, as follows in steps; At first the bottom of trench residue is cleaned out; Propped up mould in advance; Exempting from of to stirring then toasted the iron runner castable mortar and is distributed in the mould; Smash mould material with the shake of insert vibrating head again, bubble is fully closely knit to mould material in the discharge mould material.
5. blast furnace iron outlet groove according to claim 4 is made the processing method of lining, it is characterized in that: exempt to toast iron runner castable when employing and carry out iron runner when repairing, adopt the cover that keeps residual lining to water method, or the method that employing is manually smeared or spade is patted is carried out sectional repair and is not needed to use mould.
6. make the processing method of lining according to claim 4 or 5 described blast furnace iron outlet grooves, it is characterized in that: cast newly or the casting house of repairing do not need directly to come into operation through overbaking.
7. make the processing method of lining according to claim 4 or 5 described blast furnace iron outlet grooves, it is characterized in that: have only the iron runner of the blast furnace of an iron notch to make lining or patch work and be arranged in twice pitch time of tapping a blast furnace and implement, or be arranged in the maintenance downtime and construct.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200610086925A CN100575504C (en) | 2006-06-19 | 2006-06-19 | Iron runner exempts to toast mould material and lining technology is made in the cast of single iron mouth blast furnace iron outlet groove |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200610086925A CN100575504C (en) | 2006-06-19 | 2006-06-19 | Iron runner exempts to toast mould material and lining technology is made in the cast of single iron mouth blast furnace iron outlet groove |
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| CN101092653A CN101092653A (en) | 2007-12-26 |
| CN100575504C true CN100575504C (en) | 2009-12-30 |
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| CN102757242A (en) * | 2011-04-26 | 2012-10-31 | 三和耐火工业股份有限公司 | Casting material used for repairing blast furnace main runner |
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