CN203719377U - Corrugated pipe type air nozzle pipe for carbon rotary kiln - Google Patents

Corrugated pipe type air nozzle pipe for carbon rotary kiln Download PDF

Info

Publication number
CN203719377U
CN203719377U CN201320826001.2U CN201320826001U CN203719377U CN 203719377 U CN203719377 U CN 203719377U CN 201320826001 U CN201320826001 U CN 201320826001U CN 203719377 U CN203719377 U CN 203719377U
Authority
CN
China
Prior art keywords
pipe
air nozzle
rotary kiln
tuyere
type air
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.)
Expired - Fee Related
Application number
CN201320826001.2U
Other languages
Chinese (zh)
Inventor
严军
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.)
Qinghai University
Original Assignee
Qinghai University
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 Qinghai University filed Critical Qinghai University
Priority to CN201320826001.2U priority Critical patent/CN203719377U/en
Application granted granted Critical
Publication of CN203719377U publication Critical patent/CN203719377U/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Landscapes

  • Manufacture And Refinement Of Metals (AREA)

Abstract

The utility model relates to a carbon rotary kiln air nozzle for calcinating bulk carbon materials in aluminum electrolysis industry. According to the technical scheme, a corrugated pipe type air nozzle pipe for a carbon rotary kiln is characterized in that a steel corrugated pipe or a spiral pipe is arranged along the inner wall of the air nozzle pipe and is tightly combined with an outer lining of an air nozzle. An existing straight cylinder type air nozzle pipe is replaced with the corrugated pipe type air nozzle pipe, and an adhesion force between the outer lining of the air nozzle and the corrugated pipe or the spiral pipe is increased. The corrugated pipe type air nozzle pipe for the carbon rotary kiln has the advantages and the effects that the phenomenon of dropping of the outer lining caused by the difference between the internal and external temperatures of the air nozzle pipe is reduced; the corrugated pipe type air nozzle pipe for the carbon rotary kiln has the characteristics of simple structure, low cost, long service life, excellent performance and high operability.

Description

A kind of bellows-type tuyere pipe for carbon rotary kiln
Technical field
The utility model relates in aluminium electrolytic industry, the carbon rotary kiln tuyere that loose shape carbon element material is calcined.
Background technology
The Thermal Equipment that carbon rotary kiln is mainly calcined loose shape carbon element material in aluminium electrolytic industry, is made up of cylindrical shell and kiln lining, rolling ring, supporting arrangement, transmission device, kiln head cover, kiln hood, burner, heat exchanger and feeding equipment etc.Carbon rotary kiln body and level are certain gradient, and whole kiln body is supported by riding wheel apparatus, and have the catch wheel device of controlling the upper and lower play of kiln body.
Rotary kiln Secondary Air be the place that arranges apart from kiln hood approximately 1/3 place for supplementary wind combustion-supporting in kiln, extraneous air is sent in kiln by blower fan, airduct and 6 tuyeres at a distance of 1 meter.
The size of Secondary Air air quantity has great significance to the production of rotary kiln, and can Secondary Air tuyere use for a long time, and whether air quantity is sufficient, will directly affect the quality of technology condition in kiln.At present secondary tuyere uses present situation to bring very large difficulty to production operation, the even running of unfavorable production, and the life-span on liner, the raising of casting yield, the optimization of process conditions have very large impact.
Existing secondary tuyere is mainly made up of tuyere pipe (steel pipe), anchoring piece reinforcement, tuyere outer lining (forming with inner liner of rotary kiln is integrated poured).
Because tuyere pipe outer lining surface temperature is up to 1300 DEG C of left and right, what in steel pipe, pass into is air at room temperature, and thermograde is large, and in rotary kiln construction, tuyere end angle refractory matter is smash and shaken unreally, causes tuyere outer lining to come off; Material washes away erosion tuyere for a long time, causes the tuyere life-span to reduce.At present, tuyere only has about 2 months average life, generally ftracture in end, peel off, closely melt steel pipe, when serious, must block with refractory matter from outside air inlet, the rotary kiln most of the time can only be moved under without Secondary Air state, volatile matter utilizes poor effect, increase the outer consumption for fuel, production operation, calcined coke quality and unit consumption of fuel have been caused to very adverse influence.
Similar phenomenon can adopt ceramic tuyere to substitute original heat resisting steel tuyere, and refractory protection is not broken in outside, and structure is similar to heat resisting steel tuyere.Due to ceramic resistance to elevated temperatures and thermal shock resistance good, its life-span can reach about half a year, but long-term use cost is higher, intensity is lower.
Utility model content
The utility model is to solve carbon rotary kiln secondary tuyere lower problem in service life in aluminium electrolytic industry, propose one and can realize rotary kiln post-blast, and have simple in structure, with low cost, life, function admirable, a kind of bellows-type tuyere pipe for carbon rotary kiln that operability is good.
The technical solution of the utility model is: a kind of bellows-type tuyere pipe for carbon rotary kiln, it is characterized in that, and described tuyere pipe is to be provided with steel corrugated pipe or helix tube along tuyere inside pipe wall, and is closely linked with tuyere outer lining.Substitute existing straight barrel type tuyere pipe, increase the adhesive force between tuyere outer lining and bellows or helix tube.
Advantage of the present utility model and effect
For a bellows-type tuyere pipe for carbon rotary kiln, described tuyere pipe is to be provided with steel corrugated pipe or helix tube along tuyere inside pipe wall, and is closely linked with tuyere outer lining.Substitute existing straight barrel type tuyere pipe, increase the adhesive force between tuyere outer lining and bellows or helix tube.Reduce the outer lining obscission that tuyere pipe internal-external temperature difference causes, and have simple in structure, with low cost, life, function admirable, the feature that operability is good.
Brief description of the drawings
Below in conjunction with the drawings and specific embodiments, the utility model is described in further detail.
Fig. 1 is a kind of structural representation of the bellows-type tuyere pipe for carbon rotary kiln.Wherein: 1 steel corrugated pipe or helix tube, 2 tuyere outer linings.
Detailed description of the invention
A kind of bellows-type tuyere pipe for carbon rotary kiln of the present utility model, described tuyere pipe is to be provided with steel corrugated pipe or helix tube 1 along tuyere inside pipe wall, and is closely linked with tuyere outer lining 2.Substitute existing straight barrel type tuyere pipe, increase the adhesive force between tuyere outer lining 2 and bellows or helix tube 1.Reduce the outer lining obscission that tuyere pipe internal-external temperature difference causes, and have simple in structure, with low cost, life, function admirable, the feature that operability is good.

Claims (1)

1. for a bellows-type tuyere pipe for carbon rotary kiln, it is characterized in that, described tuyere pipe is to be provided with steel corrugated pipe or helix tube (1) along tuyere inside pipe wall, and is closely linked with tuyere outer lining (2).
CN201320826001.2U 2013-12-16 2013-12-16 Corrugated pipe type air nozzle pipe for carbon rotary kiln Expired - Fee Related CN203719377U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201320826001.2U CN203719377U (en) 2013-12-16 2013-12-16 Corrugated pipe type air nozzle pipe for carbon rotary kiln

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201320826001.2U CN203719377U (en) 2013-12-16 2013-12-16 Corrugated pipe type air nozzle pipe for carbon rotary kiln

Publications (1)

Publication Number Publication Date
CN203719377U true CN203719377U (en) 2014-07-16

Family

ID=51158524

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201320826001.2U Expired - Fee Related CN203719377U (en) 2013-12-16 2013-12-16 Corrugated pipe type air nozzle pipe for carbon rotary kiln

Country Status (1)

Country Link
CN (1) CN203719377U (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104236306A (en) * 2014-09-28 2014-12-24 湖南创元新材料有限公司 Rotary kiln blast nozzle

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104236306A (en) * 2014-09-28 2014-12-24 湖南创元新材料有限公司 Rotary kiln blast nozzle

Similar Documents

Publication Publication Date Title
CN103896255B (en) Vertical continuous graphitizing furnace
CN203719377U (en) Corrugated pipe type air nozzle pipe for carbon rotary kiln
CN102374773B (en) Modification method for carbon rotary kiln settling chamber
CN203964639U (en) A kind of for carbon rotary kiln end tuyere pipe
CN203964637U (en) A kind of combined type tuyere pipe for carbon rotary kiln
CN201716116U (en) Protector for lime furnace thermometric element
CN104086101A (en) Energy-saving automatic material overturning lime calcining kiln
CN203964638U (en) A kind of tuyere pipe that is set with protection ring for carbon rotary kiln
CN203964636U (en) A kind of inverted cone-shaped tuyere pipe for carbon rotary kiln
CN202747773U (en) Energy-saving ceramic particle rotary kiln
CN101275088A (en) Novel gas generator
CN201495199U (en) Rice hull carbonization complete equipment
CN201053816Y (en) Rotary kiln reducing barrel
CN208382851U (en) A kind of furnace cupola
CN102786234B (en) U-shaped internal-combustion rotating limekiln capable of recovering CO2
CN209555142U (en) A kind of convenience adds the coke dry quenching furnace of water
CN103629922A (en) Internal combustion type high-temperature rotary furnace
CN202836174U (en) Multifunctional scalable kiln burner
CN207760369U (en) Blast-furnace shaft structure with Varying-thickness liner
CN201945162U (en) Kilneye protecting structure of rotary kiln
CN206069796U (en) A kind of multi-deck screw type coil wall
CN202757420U (en) Internal combustion type high-temperature rotary furnace
CN208635330U (en) Hot-blast stove
CN206052122U (en) A kind of aluminium alloy smelting system
CN203687372U (en) Heat-accumulation high-temperature-resisting turbulent flow plate

Legal Events

Date Code Title Description
C14 Grant of patent or utility model
GR01 Patent grant
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20140716

Termination date: 20181216

CF01 Termination of patent right due to non-payment of annual fee