CN102087074B - Method for constructing refractory materials at pellet rotary kiln bellow port - Google Patents
Method for constructing refractory materials at pellet rotary kiln bellow port Download PDFInfo
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- CN102087074B CN102087074B CN2009102205325A CN200910220532A CN102087074B CN 102087074 B CN102087074 B CN 102087074B CN 2009102205325 A CN2009102205325 A CN 2009102205325A CN 200910220532 A CN200910220532 A CN 200910220532A CN 102087074 B CN102087074 B CN 102087074B
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- rotary kiln
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Abstract
The present invention, belonging to the technical field of pellet rotary kiln bellow port, particularly relates to a method for constructing refractory materials at pellet rotary kiln bellow port, and the method comprises the steps as follows: a row of U-shaped nails are welded on the bellow steel plate at one side of a prefabricated component of the rotary kiln top at the bellow port, two rows of U-shaped nails are welded on the other side of the bellow steel plate, wherein the two rows of the U-shaped nails are equidistantly arranged above and below the previously-mentioned row of U-shaped nails; the transverse spacings between the U type nails are 90mm to 150mm, and the vertical spacings between the U-shaped nails are 60mm to 120mm; asbestos felts are arranged between the prefabricated component of the top of the rotary kiln and the bellow steel plate and on the partial surface of the prefabricated component of the top of the rotary kiln adjacent with the bellow steel plate, and refractory materials are cast at the position where the two rows of U-shaped nails are welded. The lengths of the U-shaped nails are 40m to 80m, and the layer thicknesses of the cast refractory material are 90m to 160m. The method for constructing refractory materials at pellet rotary kiln bellow port provided by the invention prolongs the service life of the refractory materials made at the pelletrotary kiln bellow port, satisfies the requirement of production, decreases the maintenance loads, and reduces the production cost.
Description
Technical field
The invention belongs to applied to pelletizing rotary kiln bellows mouth technical field of refractory materials, particularly relate to a kind of applied to pelletizing rotary kiln bellows mouth refractory material construction method.
Background technology
The construction method of the original design of bellows mouth of applied to pelletizing rotary kiln is that the steel construction piece that is entrenched in the refractory brick is welded on the steel structure body of bellows mouth; Thereby the steel structure body of refractory brick and bellows is connected as one; The asbestos shutoff is used in slit between the refractory brick, and the outside sprays with spray paint.During the temperature distortion of bellows mouth steel construction piece, the welding position is oxidized, and bonding strength is reduced, and until causing monoblock refractory brick to come off, the bellows mouth loses sealing function, influence system's thermal balance, wastes energy reduction bellows mouth service life.
Summary of the invention
The purpose of this invention is to provide a kind of applied to pelletizing rotary kiln bellows mouth refractory material construction method; Through structural adjustment to the refractory material casting position; Stress suffered when refractory material and metal structure are expanded reduces, and effectively suppresses because the coefficient of expansion of structural material influences the service life of refractory material.
The objective of the invention is to realize through following technical proposals:
According to applied to pelletizing rotary kiln bellows mouth refractory material construction method of the present invention, it is characterized in that comprising the steps:
1) welding one row U sprig on the bellows steel plate of bellows mouth rotary kiln top prefabricated component one side; Welding two rows U sprig on the opposite side of bellows steel plate; This two rows U sprig is separately positioned on the below of a row U sprig of rotary kiln one side, and every row U sprig is and equidistantly distributes
2) horizontal spacing between the U sprig is 90--150mm, and the vertical vertical interval between the U sprig is 60-120mm,
3) between rotary kiln top prefabricated component and the bellows steel plate and on the rotary kiln top prefabricated component part surface adjacent asbestic blanket is being set with the bellows steel plate,
4) pouring fireproof material on the position that is welded with the U sprig.
The length of described U sprig is 40-80mm.
The thickness of feed layer of described pouring fireproof material is 90-160mm.
Applied to pelletizing rotary kiln bellows mouth refractory material construction method of the present invention has prolonged the service life of applied to pelletizing rotary kiln bellows mouth refractory material, and bellows mouth sealing effectiveness is good, guarantees system's thermal balance; Energy savings; Meet the needs of production, reduced maintenance load, reduced production cost.
Description of drawings
Fig. 1 is a structural representation of the present invention.
The specific embodiment
Specify the specific embodiment of the present invention below in conjunction with embodiment.
According to applied to pelletizing rotary kiln bellows mouth refractory material construction method of the present invention, it is characterized in that comprising the steps:
1) welding one row U sprig 3 on the bellows steel plate 4 of bellows mouth rotary kiln top prefabricated component 1 one sides; Welding two rows U sprig 6 on the opposite side of bellows steel plate 4; This two rows U sprig 6 is separately positioned on the below of a row U sprig 3 of rotary kiln one side, and every row U sprig is and equidistantly distributes
2) horizontal spacing between the U sprig is 90--150mm, and the vertical vertical interval between the U sprig is 60-120mm,
3) asbestic blanket 2 is set being provided with between rotary kiln top prefabricated component 1 and the bellows steel plate 4 on the adjacent part surface of asbestic blanket 8 and rotary kiln top prefabricated component 1 and bellows steel plate 4,
4) pouring fireproof material 7 on the position that is welded with the U sprig.
The length of described U sprig is 40-80mm.
The thickness of feed layer of described pouring fireproof material is 90-160mm.
The thickness of feed layer of described pouring fireproof material is 90-100mm, and the length of described U sprig is 40-50mm.This technological parameter is applicable to less rotary kiln bellows mouth.
The thickness of feed layer of described pouring fireproof material is 100-120mm, and the length of described U sprig is 50-60mm.This technological parameter is applicable to medium rotary kiln bellows mouth.
The thickness of feed layer of described pouring fireproof material is 120-160mm, and the length of described U sprig is 60-80mm.This technological parameter is applicable to bigger rotary kiln bellows mouth.
Applied to pelletizing rotary kiln bellows mouth refractory material construction method of the present invention has prolonged the service life of applied to pelletizing rotary kiln bellows mouth refractory material, meets the needs of production, and has reduced maintenance load, has reduced production cost.
Claims (6)
1. an applied to pelletizing rotary kiln bellows mouth refractory material construction method is characterized in that comprising the steps:
1) welding one row U sprig on the bellows steel plate of bellows mouth rotary kiln top prefabricated component one side; Welding two rows U sprig on the opposite side of bellows steel plate; This two rows U sprig is separately positioned on the below of the row U sprig on the bellows steel plate of described bellows mouth rotary kiln top prefabricated component one side, and is and equidistantly distributes;
2) horizontal spacing between the U sprig is 90-150mm, and the vertical vertical interval between the U sprig is 60-120mm;
3) between rotary kiln top prefabricated component and the bellows steel plate and on the rotary kiln top prefabricated component part surface adjacent asbestic blanket is being set with the bellows steel plate;
4) pouring fireproof material on the position that is welded with the U sprig.
2. applied to pelletizing rotary kiln bellows mouth refractory material construction method according to claim 1, the length that it is characterized in that described U sprig is 40-80mm.
3. applied to pelletizing rotary kiln bellows mouth refractory material construction method according to claim 1, the thickness of feed layer that it is characterized in that described pouring fireproof material is 90-160mm.
4. applied to pelletizing rotary kiln bellows mouth refractory material construction method according to claim 1, the thickness of feed layer that it is characterized in that described pouring fireproof material is 90-100mm, described U sprig length be 40-50mm.
5. applied to pelletizing rotary kiln bellows mouth refractory material construction method according to claim 1, the thickness of feed layer that it is characterized in that described pouring fireproof material is 100-120mm, described U sprig length be 50-60mm.
6. applied to pelletizing rotary kiln bellows mouth refractory material construction method according to claim 1, the thickness of feed layer that it is characterized in that described pouring fireproof material is 120-160mm, described U sprig length be 60-80mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009102205325A CN102087074B (en) | 2009-12-08 | 2009-12-08 | Method for constructing refractory materials at pellet rotary kiln bellow port |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009102205325A CN102087074B (en) | 2009-12-08 | 2009-12-08 | Method for constructing refractory materials at pellet rotary kiln bellow port |
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| Publication Number | Publication Date |
|---|---|
| CN102087074A CN102087074A (en) | 2011-06-08 |
| CN102087074B true CN102087074B (en) | 2012-08-22 |
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| CN2009102205325A Active CN102087074B (en) | 2009-12-08 | 2009-12-08 | Method for constructing refractory materials at pellet rotary kiln bellow port |
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| CN103292599B (en) * | 2013-05-30 | 2015-03-25 | 山西太钢不锈钢股份有限公司 | Method for repairing housing of hot blast heater in late service period |
| CN114111345A (en) * | 2021-11-19 | 2022-03-01 | 江苏众邦能源科技工程有限公司 | Maintenance and transformation method for annular furnace bottom |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5792393A (en) * | 1997-03-25 | 1998-08-11 | Atlantic Richfield Company | Method of repairing hot refractory linings in high-temperature vessels |
| CN2864538Y (en) * | 2005-12-19 | 2007-01-31 | 贵阳铝镁设计研究院 | Secondary and third wind duct structure for rotary kiln |
| CN200949996Y (en) * | 2006-09-12 | 2007-09-19 | 云南铝业股份有限公司 | Rotary kiln casting structure without wind pipe and wind nozzle |
| CN201106861Y (en) * | 2007-09-13 | 2008-08-27 | 天津大沽化工股份有限公司 | Vertical windspout stove thrice wind gap leakage proof means |
| CN201155926Y (en) * | 2007-12-19 | 2008-11-26 | 莱芜钢铁集团有限公司 | Cement rotary kiln predecomposition furnace using coal gas as fuel |
| CN201212677Y (en) * | 2008-05-14 | 2009-03-25 | 鞍钢集团矿业公司 | Single passage coal gun for grate-kiln |
-
2009
- 2009-12-08 CN CN2009102205325A patent/CN102087074B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5792393A (en) * | 1997-03-25 | 1998-08-11 | Atlantic Richfield Company | Method of repairing hot refractory linings in high-temperature vessels |
| CN2864538Y (en) * | 2005-12-19 | 2007-01-31 | 贵阳铝镁设计研究院 | Secondary and third wind duct structure for rotary kiln |
| CN200949996Y (en) * | 2006-09-12 | 2007-09-19 | 云南铝业股份有限公司 | Rotary kiln casting structure without wind pipe and wind nozzle |
| CN201106861Y (en) * | 2007-09-13 | 2008-08-27 | 天津大沽化工股份有限公司 | Vertical windspout stove thrice wind gap leakage proof means |
| CN201155926Y (en) * | 2007-12-19 | 2008-11-26 | 莱芜钢铁集团有限公司 | Cement rotary kiln predecomposition furnace using coal gas as fuel |
| CN201212677Y (en) * | 2008-05-14 | 2009-03-25 | 鞍钢集团矿业公司 | Single passage coal gun for grate-kiln |
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| CN102087074A (en) | 2011-06-08 |
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Address after: 114001 Anshan District, Liaoning, No. 219 Road, No. 39, Tiedong Patentee after: Anshan Iron and Steel Group Mining Co., Ltd. Address before: 114001 Anshan District, Liaoning, No. 219 Road, No. 39, Tiedong Patentee before: Angang Group Mine Company |