CN104402473B - A kind of blast furnace residue channel folded lock mud and preparation method thereof and using method - Google Patents
A kind of blast furnace residue channel folded lock mud and preparation method thereof and using method Download PDFInfo
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- CN104402473B CN104402473B CN201410710568.2A CN201410710568A CN104402473B CN 104402473 B CN104402473 B CN 104402473B CN 201410710568 A CN201410710568 A CN 201410710568A CN 104402473 B CN104402473 B CN 104402473B
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Abstract
The invention belongs to blast furnace ironmaking refractory clay technical field, be specifically related to a kind of blast furnace residue channel folded lock mud and preparation method thereof and using method.Technical problem to be solved by this invention overcomes deficiency of the prior art, adopt metallurgy industry secondary resource to be that primary raw material prepares the folded lock mud of blast furnace residue channel, obtained by the raw material of following weight proportion: bonding agent 45 ~ 50 parts, carbonaceous material 25 ~ 38 parts, useless magnesium carbonaceous material 20 ~ 30 parts, pitch 3-10 part; Described useless magnesium carbonaceous material is that after producing steelmaking converter, ladle use, the material screening such as magnesia carbon brick, aluminium-magnesia carbon brick processes, and screening granularity is≤5mm, does is its key technical indexes containing MgO? 60 ~ 75%, containing C? 5-15%.The present invention adopts metallurgy industry secondary resource to be that primary raw material prepares the folded lock mud of blast furnace residue channel, and production cost is low, and service life is suitable with the existing product life-span, for the folded lock mud of blast furnace residue channel provides a kind of selection completely newly.
Description
Technical field
The invention belongs to blast furnace ironmaking refractory clay technical field, be specifically related to a kind of blast furnace residue channel folded lock mud and preparation method thereof and using method.
Background technology
Folded lock mud is mainly used for the roughing runner of place mat blast furnace and folded slag lock, folded lock mud product not only will have rational chemical index requirement, also to have good high temperature resistance performance of flushing, its service condition schematic diagram as shown in Figure 1, through slag sluicing system after molten iron flows out from tapping hole, liquid slag is folded slag lock through roughing runner and is kept off in slag ladle.In this process, need place mat to fold lock mud bottom roughing runner and wash away to the high temperature resisted liquid slag and bring, and the folded slag lock of steel plate matter also needs the certain thickness folded lock mud of place mat, to be kept off in slag ladle by liquid blast furnace.Existing folded lock mud is made primarily of compositions such as pitch, coke blacking, magnesia, bonding agents, and product service life is 10-15 days, substantially meets customer need, but there is production and the high problem of use cost.
The present invention is that primary raw material prepares the folded lock mud of blast furnace residue channel for adopting metallurgy industry secondary resource.
Summary of the invention
Technical problem to be solved by this invention overcomes deficiency of the prior art, provides blast furnace residue channel folded lock mud and preparation and application thereof.
First technical problem to be solved by this invention is to provide the folded lock mud of blast furnace residue channel.
The folded lock mud of blast furnace residue channel of the present invention, is obtained by the raw material of following weight proportion:
Described useless magnesium carbonaceous material is that after producing steelmaking converter, ladle use, the material screening such as magnesia carbon brick, aluminium-magnesia carbon brick processes, and screening granularity is≤5mm, and its key technical indexes is containing MgO60 ~ 75%, containing C5-15%.
Described carbonaceous material is coke blacking, is the blanking of blast furnace process coke-screening arrangement, and its technical indicator is for containing C >=80%, ash content≤13.5%, granularity≤8mm.
Described pitch is transformation of the way pitch, and its technical indicator is half ball softening point 100 ~ 120 DEG C, extraction process measures toluene insolubles >=26%, granularity≤3mm.
Described bonding agent is obtained by the raw material of following weight proportion:
Useless magnesian 30 ~ 50 parts
25 ~ 38 parts, refuse clay brick powder
Silicon ash 3-8 part;
Wherein, useless magnesian is containing MgO60 ~ 90%, and granularity is≤2mm; Refuse clay brick powder is containing Al
2o
3>=40%, granularity is≤80 orders; Silica flour is containing SiO
2>=85%.
Wherein, folded lock mud moisture≤15% by weight of above-mentioned blast furnace residue channel, preferably moisture 8-15% by weight.
Second technical problem that the present invention solves is to provide the preparation method of above-mentioned blast furnace residue channel with folded lock mud.
The above-mentioned blast furnace residue channel preparation method of folded lock mud: by weight ratio by bonding agent, carbonaceous material, useless magnesium carbonaceous material, pitch, external adding water≤15% (preferably by weight water 8-15%) mixes obtained folded lock mud.
The 3rd technical problem that the present invention solves is to provide the using method of above-mentioned blast furnace residue channel with folded lock mud.By blast furnace residue channel with folded lock mud be used as mold lubricant for iron casting machine: by the folded lock mud of above-mentioned blast furnace residue channel respectively place mat bottom slag runner with smear on folded slag lock.
The blast furnace residue channel of the present invention beneficial effect of folded lock mud is:
(1) the folded lock mud of blast furnace residue channel of the present invention gets slag roughing runner discard on blast furnace upper berth, average life, on average beats the mud amount cycle and on average repairs number of times and all meet the demands.
(2) blast furnace residue channel of the present invention with folded lock mud on blast furnace for smearing folded slag lock, each folded slag lock is on average beaten mud amount and is better than original folded lock mud, and meet and to slag tap requirement, effect is good.
(3) blast furnace residue channel of the present invention is produced primary raw material with folded lock mud and is adopted waste secondary resource, effectively can reduce production cost, meet national development circular economy industrial policy simultaneously.
Accompanying drawing explanation
Fig. 1 folds lock mud service condition schematic diagram
Detailed description of the invention
Embodiment 1 the blast furnace residue channel of the present invention clay standby and result of use of folded lock
By the useless magnesium carbonaceous material of the coke blacking of the bonding agent of 46 weight portions, 25 weight portions, 23 weight portions, after the pitch weighing of 6 weight portions, successively useless magnesian and coke blacking are sent in batch mixing mixer respectively and carry out mix and blend, after mix and blend time 1min, add pitch and bonding agent continuation mix and blend 4min again, pack for subsequent use after adding the moisture stirring 2min of 9% outside last, and sampling detects, the blast furnace residue channel physical and chemical index of folded lock mud agent refers to table 1, and the folded lock mud of field observation blast furnace residue channel refers to table 2,3 as releasing agent result of use.
Embodiment 2 the blast furnace residue channel of the present invention clay standby and result of use of folded lock
By the useless magnesium carbonaceous material of the coke blacking of the bonding agent of 50 weight portions, 25 weight portions, 20 weight portions, after the pitch weighing of 5 weight portions, successively useless magnesian and coke blacking are sent in batch mixing mixer respectively and carry out mix and blend, after mix and blend time 1min, add pitch and bonding agent continuation mix and blend 4min again, pack for subsequent use after adding the moisture stirring 2min of 9% outside last, and sampling detects, the blast furnace residue channel physical and chemical index of folded lock mud refers to table 1, and the folded lock mud of field observation blast furnace residue channel refers to table 2,3 as releasing agent result of use.
Embodiment 3 the blast furnace residue channel of the present invention clay standby and result of use of folded lock
By the useless magnesium carbonaceous material of the coke blacking of the bonding agent of 48 weight portions, 26 weight portions, 20 weight portions, after the pitch weighing of 8 weight portions, successively useless magnesian and coke blacking are sent in batch mixing mixer respectively and carry out mix and blend, after mix and blend time 1min, add pitch and bonding agent continuation mix and blend 4min again, pack for subsequent use after adding the moisture stirring 2min of 9% outside last, and sampling detects, the blast furnace residue channel physical and chemical index of folded lock mud refers to table 1, and the folded lock mud of field observation blast furnace residue channel refers to table 2,3 as releasing agent result of use.
Folded lock mud comparative example: the pitch of 8 weight portions, the coke blacking of 26 weight portions, the magnesia of 20 weight portions, conventional binders.The physical and chemical index that comparative example folds lock mud refers to table 1, and field observation is folded lock mud and referred to table 2,3 as releasing agent result of use.
Table 1 physical and chemical index detects (%)
Table 2 roughing runner folds lock mud service condition
Table 3 is folded slag lock position and is folded lock mud service condition tables of data
The present invention folds lock mud and tries out at certain steel vanadium Iron Works, and to slag tap roughing runner for place mat, do not occur large surface mending situation, service condition is good; Fold slag lock for place mat, in use procedure, all can meet requirement of slagging tap, do not occur the situation changed folded lock mud in tapping process or mend mud.Produce with folded lock mud comparative example in the past and contrast, the repairing number of times in service life, use procedure, mending mud degree all has significant advantage.During for place mat slag runner, service life is suitable with the existing product life-span, and least life reaches 12 days, and product cost reduces by 500-800 yuan/ton.Meanwhile, this product is used for smearing folded slag lock, average dose 20.70kg, and service life is suitable with the existing product life-span, reduces with current cost.
To sum up, the present invention adopts metallurgy industry secondary resource to be that primary raw material prepares the folded lock mud of blast furnace residue channel, and production cost is low, and service life is suitable with the existing product life-span, for the folded lock mud of blast furnace residue channel provides a kind of selection completely newly.
Claims (8)
1. the folded lock mud of blast furnace residue channel, is characterized in that: it is obtained by the raw material of following weight proportion:
Wherein, by weight, described carbonaceous material is containing C >=80%; Described useless magnesium carbonaceous material is containing MgO60 ~ 75%, containing C5-15%;
Described bonding agent is obtained by the raw material of following weight proportion:
Useless magnesian 30 ~ 50 parts
25 ~ 38 parts, refuse clay brick powder
Silicon ash 3-8 part;
Wherein, by weight, described useless magnesian is containing MgO60 ~ 90%; Described refuse clay brick powder is containing Al
2o
3>=40%; Described silicon ash is containing SiO
2>=85%.
2. the folded lock mud of blast furnace residue channel according to claim 1, is characterized in that: at least meet following any one:
The granularity of described useless magnesium carbonaceous material is≤5mm;
Granularity≤the 8mm of described carbonaceous material;
Granularity≤the 3mm of described pitch.
3. the folded lock mud of blast furnace residue channel according to claim 1 and 2, is characterized in that: at least meet following any one:
Described useless magnesium carbonaceous material is magnesia carbon brick after producing steelmaking converter, ladle use, aluminium-magnesia carbon brick screening processes;
Described carbonaceous material is coke blacking;
Described pitch is transformation of the way pitch, and its technical indicator is ring and ball softening point 100 ~ 120 DEG C, extraction process measures toluene insolubles >=26%.
4. the folded lock mud of blast furnace residue channel according to claim 1, is characterized in that: at least meet following any one:
The granularity of described useless magnesian is≤2mm;
The granularity of described refuse clay brick powder is≤80 orders.
5. the folded lock mud of blast furnace residue channel according to claim 1, is characterized in that: folded lock mud moisture≤15% by weight of described blast furnace residue channel.
6. the folded lock mud of blast furnace residue channel according to claim 5, is characterized in that: the folded lock mud of described blast furnace residue channel by weight moisture is 8-15%.
7. the preparation method of folded lock mud of blast furnace residue channel described in claim 1, is characterized in that: mix the folded lock mud of obtained blast furnace residue channel by following weight proportion raw material external adding water≤15%:
Wherein, described bonding agent mixes obtained bonding agent by following weight proportion:
Useless magnesian 30 ~ 50 parts
25 ~ 38 parts, refuse clay brick powder
Silicon ash 3-8 part;
By weight, described useless magnesian is containing MgO60 ~ 90%; Described refuse clay brick powder is containing Al
2o
3>=40%; Described silicon ash is containing SiO
2>=85%.
8. the blast furnace residue channel using method of folded lock mud, is characterized in that: mixed by the folded lock mud of blast furnace residue channel according to claim 1, then it is spread upon on request bottom slag runner He on folded slag lock and use.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201410710568.2A CN104402473B (en) | 2014-11-28 | 2014-11-28 | A kind of blast furnace residue channel folded lock mud and preparation method thereof and using method |
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| CN201410710568.2A CN104402473B (en) | 2014-11-28 | 2014-11-28 | A kind of blast furnace residue channel folded lock mud and preparation method thereof and using method |
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| CN104402473B true CN104402473B (en) | 2016-04-27 |
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| CN102584285B (en) * | 2012-01-31 | 2014-10-29 | 莱芜钢铁集团有限公司 | Magnesium-carbon material used for grate-layer material of rotary hearth furnaces and preparation method thereof |
| CN102701762B (en) * | 2012-06-08 | 2013-12-11 | 武汉钢铁(集团)公司 | Regeneration repairing material for blast-furnace casting runner and preparation method for regeneration repairing material |
| CN103449828A (en) * | 2013-08-23 | 2013-12-18 | 武汉科技大学 | Repairing mass based on used magnesia carbon refractory and preparation method of repairing mass |
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Effective date of registration: 20210806 Address after: 617063 Sichuan Panzhihua Panxi Bluestar Chemical Cleaning Co., Ltd Patentee after: Panzhihua Panxi Bluestar Chemical Cleaning Co.,Ltd. Address before: 617023, kapok Road, 72, Panzhihua, Sichuan Patentee before: PANZHIHUA GANGCHENG GROUP Co.,Ltd. |