CN102798288A - Novel wholly prefabricated tuyere of rotary kiln - Google Patents

Novel wholly prefabricated tuyere of rotary kiln Download PDF

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Publication number
CN102798288A
CN102798288A CN2011101374111A CN201110137411A CN102798288A CN 102798288 A CN102798288 A CN 102798288A CN 2011101374111 A CN2011101374111 A CN 2011101374111A CN 201110137411 A CN201110137411 A CN 201110137411A CN 102798288 A CN102798288 A CN 102798288A
Authority
CN
China
Prior art keywords
tuyere
rotary kiln
anchoring
kiln
prefabricated
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN2011101374111A
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Chinese (zh)
Inventor
肖贤聪
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
GUIYANG XINGAO ALUMINUM CARBON TECHNOLOGY Co Ltd
Original Assignee
GUIYANG XINGAO ALUMINUM CARBON TECHNOLOGY Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by GUIYANG XINGAO ALUMINUM CARBON TECHNOLOGY Co Ltd filed Critical GUIYANG XINGAO ALUMINUM CARBON TECHNOLOGY Co Ltd
Priority to CN2011101374111A priority Critical patent/CN102798288A/en
Publication of CN102798288A publication Critical patent/CN102798288A/en
Pending legal-status Critical Current

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Abstract

The invention discloses a novel wholly prefabricated tuyere of a rotary kiln. The novel wholly prefabricated tuyere of the rotary kiln comprises a steel air duct (1), an anchoring frame (2), a thermal-protective coating (3), castable (4) and an anchoring hook (5). The tuyere is wholly prefabricated and baked and then is arranged at the rotary kiln. The novel wholly prefabricated tuyere has the advantages of long service life, prefabrication out of the kiln, whole installation, simpleness and convenience and high cost performance.

Description

The integral prefabricated tuyere of a kind of novel rotary kiln
Technical field
The present invention relates to a kind of rotary kiln two, the tertiary air mouth
Background technology
Two, the effect of tertiary air mouth in carbon rotary kiln:
1, introduce the outer natural air of kiln in the rotary kiln combustion-supporting with it;
2, regulation and control burning zone position and length;
3, regulation and control kiln temperature and Temperature Distribution.
At present, rotary kiln two, tertiary air mouth structure are pipe outsourcing pours in the steel, and pours is constructed in rotary kiln.With effective flange location in the steel, is that punching block is enclosed at the center with pipe in the steel then earlier, it is prefabricated again pours to be injected in the mould ramming.Through 3~5 days natural curing, in the process of baking kiln, accomplish the baking of tuyere pours then after pours ramming in kiln is prefabricated.Accomplish to drying by the fire kiln and sintering from demoulding maintenance, quality fluctuation is big.Mass defect is many, does over again that it is consuming time many to reform, and has a strong impact on the production efficiency of rotary kiln.Maintenance and Repair, baking kiln are long in time limit, and usually the rotary kiln production task is all tighter, and general enterprise does not have condition.The rotary kiln tuyere at a high temperature, shake, wash away, in move in the adverse circumstances of heat outside cold.The tuyere internal stress is easy to generate crackle greatly and causes pours to come off and built-in airduct scorification etc., often causes the stopping production of rotary kiln.The rotary kiln stop production to overhaul is to starting once again, recondition expense and newly-increased fuel consumption and to increase the loss that the petroleum coke scaling loss brings newly all very big, and the kiln liner had serious negative effect service life.
The carbon rotary kiln tuyere is generally about 150 days service life at present, that is to say that the every operation of tuyere will stop the kiln maintenance about 5 months, has 10 tuyeres in the rotary kiln, and wherein any one damages and all need stop the kiln processing.
Summary of the invention
The purpose of this invention is to provide the integral prefabricated tuyere of a kind of rotary kiln, the life-span is short in the rotary kiln production run, fault rate is high to solve tuyere, and the maintenance and repair time is long, stoving time is long, can not the problem of moving steady in a long-term.
Innovative point of the present invention: 1, this tuyere novel structure, collude (5), thermal insulation layer (3) and pours (4) by steel airduct (1), anchoring cage cover (2), anchoring and form; Airduct (1) is formed by heat resisting steel welding or casting, and anchoring cage cover (2), anchoring are colluded (5) and be welded by heat-resistant steel wire and weave into network structure; 2, selection is novel, and newly-increased thermal insulation layer (3) is processed for high efficiency heat insulation material, and novel pours (4) is processed by the microdilatancy refractory material; 3, preparation method is novel, outside kiln, pours into a mould the maintenance baking, is directly installed on the kiln body after qualified, does not need in kiln, to toast.
Be nearly 3 times of present common tuyere 150 day life-span more than 400 days integral prefabricated tuyere normal service life that a kind of rotary kiln of the present invention is used.
The integral prefabricated tuyere energy-saving benefit that a kind of rotary kiln of the present invention is used is very high, and every annual petroleum coke scaling loss of kiln can reduce more than 500 tons, and fuel consumption can reduce more than 50 tons, and the rotary kiln production capacity promotes 10%, and the Maintenance and Repair expense reduces about 50%.
Description of drawings
Fig. 1: the structural representation of existing two, tertiary air mouth, this tuyere colludes (7), pours (8) by steel airduct (6), anchoring and in kiln, pours into a mould and form;
Fig. 2: the structural representation of one embodiment of the present invention;
The vertical view of Fig. 3: Fig. 2 is in order to show expansion oplate (9);
Fig. 4: anchoring cage cover sketch map, in order to show vertical muscle (10) and horizontal bar (11) structure.
The specific embodiment
Below in conjunction with accompanying drawing the present invention is further specified.
Like Fig. 2: the whole tuyere of a kind of rotary kiln of the present invention, collude (5) by steel airduct (1), anchoring cage cover (2), thermal insulation layer (3), pours (4) and anchoring and form.Steel airduct (1) is formed by heat resisting steel welding or casting; Anchor, is welded by vertical muscle (10) and horizontal bar (11) like Fig. 4 with cage cover (2); Thermal insulation layer (3) is processed by heat-barrier material; Pours (4) is processed by the microdilatancy refractory material; (5) are colluded in anchoring, are welded by heat-resistant steel wire.This tuyere outside kiln integrated poured and the baking form.

Claims (4)

1. integral prefabricated tuyere of rotary kiln, this tuyere by steel airduct (1), anchoring cage cover (2), anchoring collude (5), thermal insulation layer (3), pours (4) anchoring is colluded (5) and is formed.
2. integral prefabricated tuyere of rotary kiln is characterized in that this tuyere is outer integral prefabricated and form through overbaking by kiln.
3. integral prefabricated tuyere of rotary kiln is characterized in that steel airduct (1) is arranged in this tuyere, anchoring cage cover (2), novel anchoring collude (5) mutual group and become the tuyere skeleton; Airduct is formed by heat resisting steel welding or casting, and anchoring cage cover (2), anchoring are colluded (5) and are welded by heat-resistant steel wire, network structure; Anchoring is colluded (5) and is U type polyline shaped.
4. integral prefabricated tuyere of rotary kiln is characterized in that thermal insulation layer (3) processes for heat-barrier material; Pours (4) is processed by the microdilatancy refractory material.
CN2011101374111A 2011-05-26 2011-05-26 Novel wholly prefabricated tuyere of rotary kiln Pending CN102798288A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN2011101374111A CN102798288A (en) 2011-05-26 2011-05-26 Novel wholly prefabricated tuyere of rotary kiln

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN2011101374111A CN102798288A (en) 2011-05-26 2011-05-26 Novel wholly prefabricated tuyere of rotary kiln

Publications (1)

Publication Number Publication Date
CN102798288A true CN102798288A (en) 2012-11-28

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN2011101374111A Pending CN102798288A (en) 2011-05-26 2011-05-26 Novel wholly prefabricated tuyere of rotary kiln

Country Status (1)

Country Link
CN (1) CN102798288A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102980391A (en) * 2012-12-19 2013-03-20 中冶长天国际工程有限责任公司 Construction method of heat-resisting layer at front end of burner
CN104236306A (en) * 2014-09-28 2014-12-24 湖南创元新材料有限公司 Rotary kiln blast nozzle
CN104792156A (en) * 2015-04-27 2015-07-22 云南源鑫炭素有限公司 Manufacturing method for integral type tertiary air duct of rotary kiln

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1316536A2 (en) * 2001-11-30 2003-06-04 KHD Humboldt Wedag AG Process for reducing emissions of dioxins and/or furans in waste gas from a cement klinker production plant
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
CN201037733Y (en) * 2007-03-20 2008-03-19 曹国强 Anchoring nail
CN201648447U (en) * 2010-02-09 2010-11-24 中钢集团耐火材料有限公司 Steel mesh for dip pipe part of vacuum refining furnace

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1316536A2 (en) * 2001-11-30 2003-06-04 KHD Humboldt Wedag AG Process for reducing emissions of dioxins and/or furans in waste gas from a cement klinker production plant
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
CN201037733Y (en) * 2007-03-20 2008-03-19 曹国强 Anchoring nail
CN201648447U (en) * 2010-02-09 2010-11-24 中钢集团耐火材料有限公司 Steel mesh for dip pipe part of vacuum refining furnace

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102980391A (en) * 2012-12-19 2013-03-20 中冶长天国际工程有限责任公司 Construction method of heat-resisting layer at front end of burner
CN104236306A (en) * 2014-09-28 2014-12-24 湖南创元新材料有限公司 Rotary kiln blast nozzle
CN104792156A (en) * 2015-04-27 2015-07-22 云南源鑫炭素有限公司 Manufacturing method for integral type tertiary air duct of rotary kiln

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Application publication date: 20121128

C02 Deemed withdrawal of patent application after publication (patent law 2001)