CN103256807A - Treatment method and tool for rotary kiln flame high-temperature belt formed ring - Google Patents
Treatment method and tool for rotary kiln flame high-temperature belt formed ring Download PDFInfo
- Publication number
- CN103256807A CN103256807A CN2013102033255A CN201310203325A CN103256807A CN 103256807 A CN103256807 A CN 103256807A CN 2013102033255 A CN2013102033255 A CN 2013102033255A CN 201310203325 A CN201310203325 A CN 201310203325A CN 103256807 A CN103256807 A CN 103256807A
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- rotary kiln
- flame
- specific purpose
- purpose tool
- centre bore
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- 238000000034 method Methods 0.000 title abstract description 5
- 229920000742 Cotton Polymers 0.000 claims abstract description 16
- 238000001035 drying Methods 0.000 claims abstract description 5
- 238000007363 ring formation reaction Methods 0.000 claims description 28
- 238000005266 casting Methods 0.000 claims description 25
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 24
- 239000011449 brick Substances 0.000 claims description 18
- 239000000463 material Substances 0.000 claims description 16
- 239000011148 porous material Substances 0.000 claims description 16
- 238000004321 preservation Methods 0.000 claims description 15
- 229910052742 iron Inorganic materials 0.000 claims description 12
- 239000004576 sand Substances 0.000 claims description 11
- 238000003672 processing method Methods 0.000 claims description 10
- 229910000831 Steel Inorganic materials 0.000 claims description 6
- 239000010959 steel Substances 0.000 claims description 6
- 238000004880 explosion Methods 0.000 claims description 4
- 230000002787 reinforcement Effects 0.000 claims description 3
- 238000007142 ring opening reaction Methods 0.000 claims description 3
- 238000007789 sealing Methods 0.000 claims description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 3
- 238000004519 manufacturing process Methods 0.000 abstract description 9
- 238000012423 maintenance Methods 0.000 abstract description 3
- 238000009413 insulation Methods 0.000 abstract 1
- 238000001816 cooling Methods 0.000 description 3
- 238000004140 cleaning Methods 0.000 description 2
- 239000012141 concentrate Substances 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000004566 building material Substances 0.000 description 1
- 238000001354 calcination Methods 0.000 description 1
- 238000010924 continuous production Methods 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 230000005496 eutectics Effects 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
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- Muffle Furnaces And Rotary Kilns (AREA)
Abstract
The invention discloses a treatment method and tool for a rotary kiln flame high-temperature belt formed ring. The treatment method includes the steps that (1) a plurality of through holes in multiple rows and multiple lines are formed in a rotary kiln barrel of a flame high-temperature belt zone; (2) a castable precast block is constructed, and a horn-shaped center hole is formed in the center of the castable precast block; (3) the castable precast block is constructed in heat insulation cotton of the flame high-temperature belt zone, and the through holes and the center hole form intercommunicating holes; (4) production is stopped after the ring is formed, and an air pick extends into the intercommunicating holes to knock the formed ring out; (5) after the formed ring is knocked out, the tool is used, quick-drying refactory castables are filled inside and outside pipe holes of the tool, the intercommunicating holes are plugged, and then reproduction can be carried out. The treatment method is quick and convenient to realize, the tool is simple in structure, convenient to use and practical, the formed ring in a rotary kiln can be knocked out under the condition that a furnace body is not cooled, production can be carried out instantly, long-time kiln halt is not needed, maintenance cost is reduced, and continuity of production can be guaranteed.
Description
Technical field
The present invention relates to the rotary kiln technical field, relate in particular to processing method and the specific purpose tool thereof of the high temperate zone of a kind of rotary kiln flame ring formation.
Background technology
At present, produce the rotary kiln of grog in use for some time, because kiln wall building materials composition complexity, material mixes not too even or insufficient, cause the part eutectic concentrated relatively, the thick castable refractory with the kiln wall that at high temperature is in a liquid state bonds, and the higher material of the refractoriness of not fused that enters also progressively forms bonding, forms high temperate zone ring formation.In actual production process, the length of ring formation and burner flame, flame concentrate or divergence has great relation, by common roasting in producing at present, adopt the flame of same diameter, equal length to concentrate the interior position apart from kiln hood 5～10m of calcination rotary kiln, a long-term flame high-temperature region, the general ring formation that can form nearly 1.3m in this flame high-temperature region of forming in this zone.In a single day rotary kiln forms ring formation, just is difficult to recover normal use state, in the course of time, can stop up by just whole stove, can not continue to produce.Industry just need be cleared up once in interior general three months now, method for cleaning is to stop kiln, allow rotary kiln cooling, operator enter in the kiln with the pneumatic pick cleaning, then with rotary kiln intensification continuation production, cooling, the needed time of handling, heat up are longer, can not form continuous production, the employed fuel that heats up is more, causes huge waste to enterprise, labor strength is big during processing, and operating environment is abominable.
Summary of the invention
In order to overcome above-mentioned defective, the invention provides the processing method of the high temperate zone of a kind of rotary kiln flame ring formation, need not stop kiln for a long time, thereby guarantee the continuity of production, reduce maintenance cost.
The present invention is at this and a kind of specific purpose tool for the processing of the high temperate zone of rotary kiln flame ring formation is provided.
To achieve these goals, technical scheme of the present invention is:
The processing method of the high temperate zone of a kind of rotary kiln flame ring formation comprises the steps:
1) offers the through hole of multiple lines and multiple rows at the cylinder of rotary kiln of flame high temperature region, the diameter of described through hole is Φ 50～Φ 80 ㎜, the centre-to-centre spacing of adjacent through-holes is 300～500 ㎜, and the distance on the whole limit in the distance of first exhausting hole center and flame high temperature region initial line, last exhausting hole center and flame high temperature region is 1/2 of adjacent through-holes centre-to-centre spacing;
2) build casting preformed block by laying bricks or stones, make casting preformed block with building the identical castable refractory of material by laying bricks or stones with rotary kiln wall, the length of described casting preformed block and the wide centre-to-centre spacing that equals adjacent through-holes, thickness equals the thickness that rotary kiln wall is built material by laying bricks or stones, the center of casting preformed block arranges trumpet-shaped centre bore, and big mouthful of centre bore is arranged on the outer arc of casting preformed block;
3) build the kiln wall by laying bricks or stones, put heat-preservation cotton inboard laying of rotary kiln, heat-preservation cotton in flame high temperature region is built casting preformed block by laying bricks or stones, other zone adds water with castable refractory and mixes and build by laying bricks or stones, filling drainage sand in the centre bore of described casting preformed block, the inner ring opening of centre bore seals with castable refractory, cap seal iron covering on the through hole on the cylindrical shell;
4) after the high temperate zone of rotary kiln flame produces ring formation, stop to produce, open the iron covering on the cylindrical shell, draw out heat-preservation cotton, pour out or blow out drift sand, with pneumatic pick ring formation is destroyed;
5) plug-back, after destroying ring formation, use specific purpose tool, along through hole, the casting preformed block centre bore is inserted in the kiln body, pumpback, and the umbrella sheet of specific purpose tool is opened, specific purpose tool is trapped in through hole and the centre bore, the umbrella sheet covers on the inner face of centre bore, and the inner sealing with centre bore is provided with pore in the specific purpose tool, the end of pore arranges reducing, reducing place is filled with flame-proof sphere, filling dry type material in the pore, specific purpose tool and centre bore, the sideshake of through hole is poured the quick-drying anti-explosion self-flowing material into, add drainage sand then, cut out the specific purpose tool that cylindrical shell exposes outside, add and fill out heat-preservation cotton, seal up iron covering at last.
Further, for the cylinder of rotary kiln intensity of avoiding flame high temperature region reduces, a plurality of reinforcements of cylinder of rotary kiln outer setting of described flame high temperature region are reinforced cylinder of rotary kiln.
The present invention provides a kind of specific purpose tool for the processing of the high temperate zone of rotary kiln flame ring formation in addition, described specific purpose tool comprises that there is the steel pipe of reducing an end, and the steel tube end part outer ring arranges circular jam, the hinged a plurality of umbrella sheets of jam outer circumference portion, the articulated section of umbrella sheet arranges banking stop.
Further, described umbrella sheet is minimum is six.
The processing method of the high temperate zone of rotary kiln flame of the present invention ring formation, cylinder of rotary kiln at the high temperate zone of flame ring formation arranges through hole, build the casting preformed block that is provided with centre bore by laying bricks or stones at the cylindrical shell inner ring, centre bore and through hole form intercommunicating pore, the inner shutoff of intercommunicating pore, fill drainage sand in the intercommunicating pore, heat-preservation cotton, iron covering on the outer end cap when ring formation produces, is raised iron covering, draw out heat-preservation cotton, pour out drift sand, with pneumatic pick hammering ring formation, ring formation can be destroyed, insert in the intercommunicating pore with specific purpose tool then, the umbrella sheet of end seals an end of intercommunicating pore, fills flame-proof sphere and dry type material at the instrument endoporus, and the sideshake between instrument and the intercommunicating pore is filled the quick-drying anti-explosion self-flowing material, the drainage material, heat-preservation cotton, cover iron covering and namely seal intercommunicating pore, can produce again.The umbrella sheet can or not influence ordinary production owing to high temperature is burnt in the production process again.This processing method is efficient and convenient, and specific purpose tool is simple in structure, convenient and practical, does not need the body of heater cooling can destroy the interior ring formation of rotary kiln, puts into production at once, need not stop kiln for a long time, can reduce maintenance cost, guarantees the continuity of producing.
Description of drawings
Fig. 1 is specific purpose tool structural representation used in the present invention.
The specific embodiment
The present invention is described further below in conjunction with specific embodiment.
The step of the processing method of the high temperate zone of rotary kiln flame of the present invention ring formation is:
1) offers the through hole of multiple lines and multiple rows at the cylinder of rotary kiln of flame high temperature region, the diameter of described through hole is Φ 50～Φ 80 ㎜, the centre-to-centre spacing of adjacent through-holes is 300～500 ㎜, and the distance on the whole limit in the distance of first exhausting hole center and flame high temperature region initial line, last exhausting hole center and flame high temperature region is 1/2 of adjacent through-holes centre-to-centre spacing;
For the cylinder of rotary kiln intensity of avoiding flame high temperature region reduces, a plurality of reinforcements of cylinder of rotary kiln outer setting of described flame high temperature region are reinforced cylinder of rotary kiln;
2) build casting preformed block by laying bricks or stones, make casting preformed block with building the identical castable refractory of material by laying bricks or stones with rotary kiln wall, the length of described casting preformed block and the wide centre-to-centre spacing that equals adjacent through-holes, thickness equals the thickness that rotary kiln wall is built material by laying bricks or stones, the center of casting preformed block arranges trumpet-shaped centre bore, and big mouthful of centre bore is arranged on the outer arc of casting preformed block;
3) build the kiln wall by laying bricks or stones, put heat-preservation cotton inboard laying of rotary kiln, heat-preservation cotton in flame high temperature region is built casting preformed block by laying bricks or stones, other zone adds water with castable refractory and mixes and build by laying bricks or stones, filling drainage sand in the centre bore of described casting preformed block, the inner ring opening of centre bore seals with castable refractory, cap seal iron covering on the through hole on the cylindrical shell;
4) after the high temperate zone of rotary kiln flame produces ring formation, stop to produce, open the iron covering on the cylindrical shell, draw out heat-preservation cotton, pour out or blow out drift sand, with pneumatic pick ring formation is destroyed;
5) plug-back, after destroying ring formation, use specific purpose tool as shown in Figure 1, along through hole, the casting preformed block centre bore is inserted in the kiln body, pumpback, and the umbrella sheet 4 of specific purpose tool is opened, specific purpose tool is trapped in through hole and the centre bore, umbrella sheet 4 covers on the inner face of centre bore, and the inner sealing with centre bore is provided with pore in the specific purpose tool, the end of pore arranges reducing 1, reducing place is filled with flame-proof sphere, filling dry type material in the pore, specific purpose tool and centre bore, the sideshake of through hole is poured the quick-drying anti-explosion self-flowing material into, add drainage sand then, cut out the specific purpose tool that cylindrical shell exposes outside, add and fill out heat-preservation cotton, seal up iron covering at last.
As shown in Figure 1, specific purpose tool used in the present invention comprises that there is the steel pipe 2 of reducing 1 end, and the steel tube end part outer ring arranges circular jam 3, the hinged a plurality of umbrella sheets 4 of jam 3 outer circumference portion, and the articulated section of umbrella sheet 4 arranges banking stop 5.
Described umbrella sheet 4 is minimum to be six.
Technical scheme of the present invention is not limited to the restriction of above-mentioned specific embodiment, and the technology distortion that every technical scheme according to the present invention is made all falls within protection scope of the present invention.
Claims (4)
1. the processing method of the high temperate zone of a rotary kiln flame ring formation is characterized in that: comprise the steps:
1), offers the through hole of multiple lines and multiple rows at the cylinder of rotary kiln of flame high temperature region, the diameter of described through hole is Φ 50～Φ 80 ㎜, the centre-to-centre spacing of adjacent through-holes is 300～500 ㎜, and the distance on the whole limit in the distance of first exhausting hole center and flame high temperature region initial line, last exhausting hole center and flame high temperature region is 1/2 of adjacent through-holes centre-to-centre spacing;
2), build casting preformed block by laying bricks or stones, make casting preformed block with castable refractory, the length of described casting preformed block and the wide centre-to-centre spacing that equals adjacent through-holes, thickness equals the thickness that rotary kiln wall is built material by laying bricks or stones, the center of casting preformed block arranges trumpet-shaped centre bore, and big mouthful of centre bore is arranged on the outer arc of casting preformed block;
3), build the kiln wall by laying bricks or stones, put heat-preservation cotton inboard laying of rotary kiln, heat-preservation cotton in flame high temperature region is built casting preformed block by laying bricks or stones, other zone adds water with castable refractory and mixes and build by laying bricks or stones, filling drainage sand in the centre bore of described casting preformed block, the inner ring opening of centre bore seals with castable refractory, cap seal iron covering on the through hole on the cylindrical shell;
4), after the high temperate zone of rotary kiln flame produces ring formation, stop to produce, open the iron covering on the cylindrical shell, draw out heat-preservation cotton, pour out or blow out drift sand, with pneumatic pick ring formation is destroyed;
5), plug-back, after destroying ring formation, use specific purpose tool, along through hole, the casting preformed block centre bore is inserted in the kiln body, pumpback, and the umbrella sheet of specific purpose tool is opened, specific purpose tool is trapped in through hole and the centre bore, the umbrella sheet covers on the inner face of centre bore, and the inner sealing with centre bore is provided with pore in the specific purpose tool, the end of pore arranges reducing, reducing place is filled with flame-proof sphere, filling dry type material in the pore, specific purpose tool and centre bore, the sideshake of through hole is poured the quick-drying anti-explosion self-flowing material into, add drainage sand then, cut out the specific purpose tool that cylindrical shell exposes outside, add and fill out heat-preservation cotton, seal up iron covering at last.
2. the processing method of the high temperate zone of rotary kiln flame according to claim 1 ring formation is characterized in that: a plurality of reinforcements of cylinder of rotary kiln outer setting of described flame high temperature region, cylinder of rotary kiln is reinforced.
3. employed specific purpose tool in the described processing method of claim 1, it is characterized in that: described specific purpose tool, comprise that there is the steel pipe of reducing an end, the steel tube end part outer ring arranges circular jam, the hinged a plurality of umbrella sheets of jam outer circumference portion, the articulated section of umbrella sheet arranges banking stop.。
4. specific purpose tool according to claim 3, it is characterized in that: described umbrella sheet is minimum to be six.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310203325.5A CN103256807B (en) | 2013-05-28 | 2013-05-28 | Treatment method and tool for rotary kiln flame high-temperature belt formed ring |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310203325.5A CN103256807B (en) | 2013-05-28 | 2013-05-28 | Treatment method and tool for rotary kiln flame high-temperature belt formed ring |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103256807A true CN103256807A (en) | 2013-08-21 |
| CN103256807B CN103256807B (en) | 2014-09-03 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310203325.5A Active CN103256807B (en) | 2013-05-28 | 2013-05-28 | Treatment method and tool for rotary kiln flame high-temperature belt formed ring |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114717372A (en) * | 2022-04-26 | 2022-07-08 | 酒泉钢铁(集团)有限责任公司 | High-temperature cleaning method for ring formation of rotary kiln for direct reduction of iron ore |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100619481B1 (en) * | 2004-08-02 | 2006-09-08 | 이우범 | Codirectional rotary kiln with a rectangle bar |
| CN201463515U (en) * | 2009-08-27 | 2010-05-12 | 王敬鹏 | Split-type rotary calcining kiln |
| CN202041071U (en) * | 2011-04-06 | 2011-11-16 | 武汉钢铁(集团)公司 | Rotary kiln capable of being mended in on-line manner |
| CN202582160U (en) * | 2012-04-11 | 2012-12-05 | 华唯金属矿产资源高效循环利用国家工程研究中心有限公司 | Material overturning and wall scraping device capable of avoiding ring formation of rotary kiln |
| CN102927832A (en) * | 2012-11-16 | 2013-02-13 | 鞍钢集团矿业公司 | Block raking device for formed ring of rotary kiln |
-
2013
- 2013-05-28 CN CN201310203325.5A patent/CN103256807B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100619481B1 (en) * | 2004-08-02 | 2006-09-08 | 이우범 | Codirectional rotary kiln with a rectangle bar |
| CN201463515U (en) * | 2009-08-27 | 2010-05-12 | 王敬鹏 | Split-type rotary calcining kiln |
| CN202041071U (en) * | 2011-04-06 | 2011-11-16 | 武汉钢铁(集团)公司 | Rotary kiln capable of being mended in on-line manner |
| CN202582160U (en) * | 2012-04-11 | 2012-12-05 | 华唯金属矿产资源高效循环利用国家工程研究中心有限公司 | Material overturning and wall scraping device capable of avoiding ring formation of rotary kiln |
| CN102927832A (en) * | 2012-11-16 | 2013-02-13 | 鞍钢集团矿业公司 | Block raking device for formed ring of rotary kiln |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114717372A (en) * | 2022-04-26 | 2022-07-08 | 酒泉钢铁(集团)有限责任公司 | High-temperature cleaning method for ring formation of rotary kiln for direct reduction of iron ore |
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| Publication number | Publication date |
|---|---|
| CN103256807B (en) | 2014-09-03 |
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Denomination of invention: Treatment method and tool for rotary kiln flame high-temperature belt formed ring Effective date of registration: 20181113 Granted publication date: 20140903 Pledgee: Jiaozuo CTS bank Limited by Share Ltd Pledgor: Jiaozuo Norman's Furnace Industry Co., Ltd. Registration number: 2018410000018 |
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Date of cancellation: 20191125 Granted publication date: 20140903 Pledgee: Jiaozuo CTS bank Limited by Share Ltd Pledgor: Jiaozuo Norman's Furnace Industry Co., Ltd. Registration number: 2018410000018 |
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Denomination of invention: Treatment method and tool for rotary kiln flame high-temperature belt formed ring Effective date of registration: 20191126 Granted publication date: 20140903 Pledgee: Jiaozuo CTS bank Limited by Share Ltd Pledgor: Jiaozuo Norman's Furnace Industry Co., Ltd. Registration number: Y2019980000728 |
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Date of cancellation: 20201103 Granted publication date: 20140903 Pledgee: Jiaozuo CTS bank Limited by Share Ltd. Pledgor: JIAOZUO NUOERMAN STOVE INDUSTRY Co.,Ltd. Registration number: Y2019980000728 |
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Denomination of invention: A treatment method and special tool for high temperature band of rotary kiln flame Effective date of registration: 20201103 Granted publication date: 20140903 Pledgee: Jiaozuo CTS bank Limited by Share Ltd. Pledgor: JIAOZUO NUOERMAN STOVE INDUSTRY Co.,Ltd. Registration number: Y2020980007519 |
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Date of cancellation: 20220420 Granted publication date: 20140903 Pledgee: Jiaozuo CTS bank Limited by Share Ltd. Pledgor: JIAOZUO NUOERMAN STOVE INDUSTRY CO.,LTD. Registration number: Y2020980007519 |