CN101397211A - Technique for producing slag runner ramming mix by using waste blast furnace runner material and blast furnace dust collecting powder - Google Patents
Technique for producing slag runner ramming mix by using waste blast furnace runner material and blast furnace dust collecting powder Download PDFInfo
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- CN101397211A CN101397211A CNA2007100466088A CN200710046608A CN101397211A CN 101397211 A CN101397211 A CN 101397211A CN A2007100466088 A CNA2007100466088 A CN A2007100466088A CN 200710046608 A CN200710046608 A CN 200710046608A CN 101397211 A CN101397211 A CN 101397211A
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- blast furnace
- collected
- slag runner
- bearing dust
- ramming mass
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Abstract
The invention relates to resource regeneration technology and provides a slag channel ramming material produced by utilizing blast furnace waste channel material and blast furnace dust-collected powder, the ingredients thereof are: 70%-80% of skeletal material recycling waste channel material grain finished material, 15%-24% of refinement material recycling blast furnace dust-collected powder finished material and 0.01%-0.05% of modified addition agent, and the left is refinement material grade-one soft clay; the skeletal refinement material forms the base, and 4%-4.5% of bonding agent is added in each base. The production flow thereof includes: (1) waste channel material treatment, (2) blast furnace dust-colleted powder treatment, and (3) slag channel ramming material production. The production flow of the slag channel ramming material includes: (1) adding the recycled waste channel material grain finished material in the blender according to the prescription and stirring; (2) adding some industrial sirup solution and stirring; (3) adding the recycled blast furnace dust-collected powder finished material, the grade-one soft clay and the modified addition agent as well as the left industrial sirup solution and stirring; (4) discharging, measurement and bagging. The invention has better economic benefit and social benefit.
Description
Technical field
The present invention relates to the regeneration techniques of waste resource, the particularly recovery of the refractory materials of smelting iron and steel industrial waste and utilization specifically refers to utilize blast furnace to discard the technology of ditch material and the bearing dust-collected production slag runner of blast furnace ramming mass.
Background technology
Vocabulary of terms
Blast furnace ditch material: the general designation ditch material of used refractory materials in the trench system of blast furnace discharge yard.The trench system of blast furnace discharge yard mainly is divided into tap drain, slag runner and iron runner.Molten iron flows into tap drain by blast furnace iron notch, and by the separation of slag weir, pure molten iron flows into iron runner, and slag liquid flows into slag runner.
Discarded blast furnace ditch material: refer to the residual lining of back blast furnace slag iron runner refractory materials.Blast furnace ditch material is after use, and its composition structure can change, and is divided into metamorphic layer, transition layer and sintered layer from the working face to the material internal successively.Metamorphic layer is on working face, owing to contacting with slag iron, so foreign matter content height, particularly iron contamination content height can not be used further in the refractory materials; Transition layer is owing to be subjected to the infiltration of oxidation and part slag iron, and its weave construction is destroyed substantially, so intensity is lower, also is not suitable in the refractory materials; Sintered layer is this sintered compact under hot conditions of refractory materials, contains Al
2O
355%～75%, SiC 〉=12%, C2～4% does not contain other impurity components, and the intensity height is suitable as refractory materials.The present invention mainly is meant utilization to ditch material sintered layer to the recycling of discarded blast furnace ditch material.
Ramming mass: unshape refractory can be divided into mould material, moldable, ramming mass, Gunning refractory etc. by constructional method classification.Wherein ramming mass is and does or half-dried loose shape, and the powerful ramming by the ramming hammer obtains closely knit structure, and it is flexible to have a construction, bonding strength height, advantage such as the material density is good, and water content is few, and thermal shock resistance is good.
The slag runner ramming mass: the repairing and the ditch body seam crossing that are widely used in tap drain and slag in the blast furnace discharge yard, iron runner are filled, and are blast furnace a kind of refractory materialss commonly used.
Blast furnace is bearing dust-collected: be the appurtenant that produces in the work of blast furnace dust-collecting equipment, and the dust that produces when mainly being refractory materials construction and blast furnace casting.In surveying its composition, contain Al
2O
322.83%, SiC 18.26%, and C 17.53%.
For a long time, blast furnace ironmaking has only sub-fraction depleted main channel material after simple sorting, fragmentation with the discarded ditch material that the back produces, and uses as low-grade anti-material, and all the other major parts have all abandoned.Blast furnace ditch material usage quantity in Iron and Steel Production is bigger, and the ditch material after using promptly goes out of use, and is not only the significant wastage of resource, and contaminate environment.In addition, blast furnace also can produce a large amount of bearing dust-collected every year, as untimely processing, also can pollute environment.
Summary of the invention
The objective of the invention is to propose a kind of technology of utilizing discarded ditch material of blast furnace and the dustproof powder of blast furnace to produce the slag runner ramming mass, solve recycling problem with back waste refractory materials and the bearing dust-collected resource of blast furnace.
A kind of slag runner ramming mass that utilizes discarded ditch material of blast furnace and the bearing dust-collected production of blast furnace of the present invention, its composition by mass ratio is:
Aggregate: reclaim discarded ditch material finished granule material 70%-80%;
Fines: reclaim the bearing dust-collected finished product material of blast furnace 15%-24%,
Fines: property-modifying additive 0.01%～0.05%,
Fines: the one-level soft clay all the other
Above-mentioned aggregate adds fines and forms base-material, and every part of base-material adds wedding agent 4%-4.5% again.
Described wedding agent adopts industrial syrup solution, and its prescription by mass ratio is: add sanitas borax 1%-2% in industrial syrup 20%, add water to 100%.
Described property-modifying additive adopts carboxymethyl cellulose or Sodium hexametaphosphate 99 etc., and it mainly acts on is plasticising (improving workability), control water (reduction water-content) and water conservation (prevent the mistake of moisture content ease, extend the shelf life).
The technical process that utilizes blast furnace to discard ditch material and the bearing dust-collected production slag runner of blast furnace ramming mass of the present invention is:
Step 1: discarded ditch material is handled
1-1 removes metamorphic layer and transition layer, isolates sintered layer;
1-2 selects the piece fine fodder, and ferrous contaminants is removed in magnetic separation, is broken into particle;
The 1-3 processing of soaking;
Sieve after the 1-4 drying;
1-5 obtains reclaiming discarded ditch material finished granule material;
Reclaim the granularity≤8mm of discarded ditch material finished granule material, wherein
Al
2O
3+SiC≥70％，Fe
2O
3≤2.0％；
Step 2: the bearing dust-collected processing of blast furnace
2-1 roughly selects decon;
2-2 is selected;
2-3 iron removal by magnetic separation matter;
2-4 reclaims the bearing dust-collected finished product material of blast furnace;
Reclaim the granularity≤0.044mm of the bearing dust-collected finished product material of blast furnace, wherein Al
2O
3+ SiO
2〉=60%, Fe
2O
3≤ 2.0%, IL (igloss)≤3.0%;
Step 3: the slag runner ramming mass is produced
3-1 adds the discarded ditch material finished granule material of recovery by prescription and stirred 1 minute in stirrer, make even particle distribution;
3-2 pours part industry syrup solution into and stirred 1 minute, makes particulate material fully moistening;
3-3 adds the bearing dust-collected finished product material of recovery blast furnace, one-level soft clay and property-modifying additive, and remaining industrial syrup solution stirred 10～13 minutes;
The 3-4 discharging, metering, pack.
Its finished product is that outward appearance is the particle of chocolate and the powder blended shape material that looses, with the casting mold sand facies seemingly, fine powder is wrapped in particle surface equably;
Its technical qualification are:
Contribution of the present invention is: it is low, profitable that the present invention has a cost, and production technique novelty, characteristics such as applied widely have promotional value.Because discarded ditch material and blast furnace is bearing dust-collected is reasonably recycled; reduce the consumption of raw material resources, also reduced the production cost of enterprise, helped the Sustainable development of the utilization of resources; also help environment protection, have favorable economic benefit and social benefit.
Embodiment
Now the invention will be further described with the following Examples.
Embodiment 1:
Useless ditch material finished granule material 75% with granularity 8～0mm is an aggregate, the bearing dust-collected finished product material of the blast furnace fine powder 20% that adds granularity≤0.044mm, the one-level soft clay fine powder 5% of granularity≤0.044mm and the property-modifying additive of granularity≤0.044mm 0.02% are base-material, in every part of base-material, add wedding agent industry syrup solution 4.3%, can make slag runner ramming mass of the present invention.
Recovery waste resistant material and the bearing dust-collected add-on of blast furnace have amounted to 90% in this prescription.
Starting material require:
Reclaim the granularity≤8mm of discarded ditch material finished granule material, Chemical Composition Al
2O
3+ SiC 〉=70%, Fe
2O
3≤ 2.0%.
Reclaim the granularity≤0.044mm of the bearing dust-collected finished product material of blast furnace, Chemical Composition Al
2O
3+ SiO
2〉=60%, Fe
2O
3≤ 2.0%, IL (igloss, promptly 600 ℃, the loss on ignition behind the 3h)≤3.0%.
Industry syrup solution mass ratio is: add sanitas borax 1.2% in industrial syrup 20%, add water to 100%.
Property-modifying additive adopts carboxymethyl cellulose or Sodium hexametaphosphate 99.
Produce by above-mentioned ramming mass technical process, and product is carried out sampling Detection, the product measured value sees the following form
Claims (5)
1. slag runner ramming mass that utilizes discarded ditch material of blast furnace and the bearing dust-collected production of blast furnace, its composition by mass ratio is:
Aggregate: reclaim discarded ditch material finished granule material 70%-80%;
Fines: reclaim the bearing dust-collected finished product material of blast furnace 15%-24%,
Fines: property-modifying additive 0.01%～0.05%,
Fines: the one-level soft clay all the other
Above-mentioned aggregate adds fines and forms base-material, and every part of base-material adds wedding agent 4%4.5% again.
2. slag runner ramming mass according to claim 1 is characterized in that: described wedding agent is industrial syrup solution, and its prescription by mass ratio is: industrial syrup 20%, sanitas borax 1%-2% adds water to 100%.
3. slag runner ramming mass according to claim 1 is characterized in that: described property-modifying additive adopts carboxymethyl cellulose or Sodium hexametaphosphate 99, and it mainly acts on is plasticising, control water and water conservation.
4. slag runner ramming mass according to claim 1 is characterized in that: its finished product is that outward appearance is the particle of chocolate and the powder blended shape material that looses, with the casting mold sand facies seemingly, fine powder is wrapped in particle surface equably;
Its technical qualification are:
5. technology of producing the described slag runner ramming mass of claim 1, its flow process is:
Step 1: discarded ditch material is handled
1-1 removes metamorphic layer and transition layer, isolates sintered layer;
1-2 chooses the piece material, and ferrous contaminants is removed in magnetic separation, is broken into particle;
The 1-3 processing of soaking;
Sieve after the 1-4 drying;
1-5 obtains reclaiming discarded ditch material finished granule material;
Reclaim the granularity≤8mm of discarded ditch material finished granule material, wherein Al
2O
3+ SiC 〉=70%, Fe
2O
3≤ 2.0%;
Step 2: the bearing dust-collected processing of blast furnace
2-1 roughly selects decon;
2-2 is selected;
2-3 iron removal by magnetic separation matter;
2-4 reclaims the bearing dust-collected finished product material of blast furnace;
Reclaim the granularity≤0.044mm of the bearing dust-collected finished product material of blast furnace, wherein Al
2O
3+ SiO
2〉=60%, Fe
2O
3≤ 2.0%, IL (igloss)≤3.0%;
Step 3: the slag runner ramming mass is produced
3-1 adds the discarded ditch material finished granule material of recovery by prescription and stirred 1 minute in stirrer, make even particle distribution;
3-2 pours part industry syrup solution into and stirred 1 minute, makes particulate material fully moistening;
3-3 adds the bearing dust-collected finished product material of recovery blast furnace, one-level soft clay and property-modifying additive, and remaining industrial syrup solution stirred 10～13 minutes;
The 3-4 discharging, metering, pack.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2007100466088A CN101397211A (en) | 2007-09-29 | 2007-09-29 | Technique for producing slag runner ramming mix by using waste blast furnace runner material and blast furnace dust collecting powder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2007100466088A CN101397211A (en) | 2007-09-29 | 2007-09-29 | Technique for producing slag runner ramming mix by using waste blast furnace runner material and blast furnace dust collecting powder |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101397211A true CN101397211A (en) | 2009-04-01 |
Family
ID=40516079
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA2007100466088A Pending CN101397211A (en) | 2007-09-29 | 2007-09-29 | Technique for producing slag runner ramming mix by using waste blast furnace runner material and blast furnace dust collecting powder |
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|---|---|
| CN (1) | CN101397211A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105036607A (en) * | 2015-07-14 | 2015-11-11 | 常州市武进翔宇电子元器件有限公司 | Ceramic waste anti-ultraviolet type polyethylene sintered external wall panel and production method therefor |
| CN112457029A (en) * | 2020-12-08 | 2021-03-09 | 首钢集团有限公司 | Spray coating for slag pot grating and use method thereof |
-
2007
- 2007-09-29 CN CNA2007100466088A patent/CN101397211A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105036607A (en) * | 2015-07-14 | 2015-11-11 | 常州市武进翔宇电子元器件有限公司 | Ceramic waste anti-ultraviolet type polyethylene sintered external wall panel and production method therefor |
| CN112457029A (en) * | 2020-12-08 | 2021-03-09 | 首钢集团有限公司 | Spray coating for slag pot grating and use method thereof |
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| WD01 | Invention patent application deemed withdrawn after publication |
Open date: 20090401 |