CN103629922A - Internal combustion type high-temperature rotary furnace - Google Patents
Internal combustion type high-temperature rotary furnace Download PDFInfo
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- CN103629922A CN103629922A CN201210300555.9A CN201210300555A CN103629922A CN 103629922 A CN103629922 A CN 103629922A CN 201210300555 A CN201210300555 A CN 201210300555A CN 103629922 A CN103629922 A CN 103629922A
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- internal combustion
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Abstract
Provided is an internal combustion type high-temperature rotary furnace. The internal combustion type high-temperature rotary furnace mainly comprises a combustor, a furnace body, a feeder, a rotary device and a smoke dedusting portion. The furnace body is composed of an outer metal cylinder, an inner metal cylinder and heat insulation materials, wherein the gap between the outer metal cylinder and the inner metal cylinder is filled with heat insulation materials. The inner cylinder can be divided into two or more sections, an expansion joint is arranged between every two sections to compensate for high-temperature expansion of metal, cracking and breaking, caused by high temperature, of the inner metal cylinder are reduced, and the service life is prolonged. The rotary furnace is high in heat efficiency, free of material pollution, long in service life, and suitable for kaoline calcination, molecular sieve roasting and high-temperature roasting of catalysts or catalyst carriers or the like.
Description
Technical field
The present invention relates to a kind of internal combustion type high temperature rotating stove, more particularly, relate to a kind of internal combustion type high temperature rotating stove with improved inner tube structure.
Background technology
Powder drying and roasting are common a kind of operating process, for example the roasting of atomized microball of the roasting process after molecular sieve exchange, kaolin in-situ crystallization type molecular sieve is, roasting of Coaseries kaolin etc., in industry, often material is joined in rotary furnace and carried out, rotary furnace is the low cylindric body of heater with certain gradient after a kind of front height, there is rotation tumbler, in the rotation process of body of heater material by the Action of Gravity Field of self from the high-end discharging opening that flows to low side.Mode of heating has external heat formula and internal heat type, and the fuel of employing has combustion gas, fuel oil, coal and electrical heating etc.External heating type is by metal cylinder is heated, and heated metal cylindrical shell conducts heat to the material in cylinder again; Internal heating type is to adopt common steel cylinder as support housing, builds refractory material in housing by laying bricks or stones, and heater is located at inside, the slag contaminated material but refractory material easily comes off.When interior mode of heating is directly burning, can be described as again internal combustion type.Compare with external-heat, the gaseous matter producing if burn is pollution solid material not, and internal combustion type can more effectively utilize heat energy, particularly follows the process of exothermic reaction simultaneously.
Chinese invention patent CN102011018A discloses a kind of internal heat type rotary kiln, for reduction-oxidation manganese, temperature can be lighted and controlled to heating after coal dust and manganese oxide mixing of materials, and the method energy consumption is low, and technology controlling and process is accurate.
Chinese invention patent CN1417114A discloses a kind of method and internal heat type rotary kiln thereof with rotary calciner calcined kaolin.This rotary kiln outside is cylindric steel cylinder, inner lining refractory heat-insulation layer and with heat-insulation layer be whole act poplar plate.
Chinese utility model patent CN2391156Y discloses the internal combustion type rotary kiln that a kind of inner core is heating resisting metal, and the thermal efficiency is high, and fuel saving is simple in structure, not contaminated material.
Internal combustion type is owing to adopting the directly method of burning, except inner core material being there is to high temperature resistant, the not requirement of contaminated material, also need withstand high temperatures thermal expansion, extend the service life of kiln inner core, and above-mentioned patent does not relate to the associated description that improves inner core heat resistanceheat resistant expansion character.
Summary of the invention
The object of the invention is to overcome the deficiency of above-mentioned prior art, provide that a kind of thermal efficiency is high, the internal combustion type high temperature rotating stove of contaminated material and the thermal expansion of inner core energy withstand high temperatures not.
For solving the problems of the technologies described above, the invention provides a kind of internal combustion type high temperature rotating stove, this equipment is mainly partly comprised of burner, body of heater, feeder, rotation tumbler and flue gas ash removal, described rotary furnace body of heater is comprised of the insulation material of metal outer cylinder, metal inner core and filling between the two, and described metal inner core is straight tube and with the cylindrical shell of expansion joint.
The material that described inner core adopts can be refractory metal, and inner core can be divided into the multistage of two or more, between section and section, expansion joint is installed, and can compensate the high temperature thermal expansion of metal, reduces cracking and breakage that metal inner core Yin Gaowen causes, increases the service life.
Described expansion joint is one or more in U-shaped, the type of falling Ω, V-type bellows.
Described urceolus and the insulation material between inner core are that brick pattern piece, plate and/or blanket felt paving are filled out, and are fixed on outer tube inner wall with nail or ring plate.
The spendable fuel of internal combustion type high temperature rotating stove of the present invention has combustion gas, fuel oil, water-coal-slurry or coal dust etc., and the heat that fuel combustion produces passes to material by radiation and high-temperature flue gas, compares with external-heat, and this mode thermal efficiency is high.Be applicable to the high-temperature roasting of kaolin calcined, molecular sieve roasting, catalyst or catalyst carrier etc.
Accompanying drawing explanation
Fig. 1 is the structural representation of embodiments of the invention.
The specific embodiment
Below in conjunction with specific embodiments and the drawings, the invention will be further described; set forth in the following description more details so that fully understand the present invention; but the present invention obviously can implement with the multiple alternate manner that is different from this description; those skilled in the art can do similar popularization, deduction according to practical situations without prejudice to intension of the present invention in the situation that, therefore should be with content constraints protection scope of the present invention of this specific embodiment.
Fig. 1 is the structural representation of the embodiment of the present invention.It should be noted that this is only as example, it is not to draw according to the condition of equal proportion, and should not using that this is construed as limiting as the protection domain to actual requirement of the present invention.
As shown in Figure 1, a kind of internal combustion type high temperature rotating stove, 1 is body of heater metal outer cylinder, 3 is metal inner core, be filled with adiabator layer 2 between the two, inner tube installation has expansion joint 4, and expansion joint can be two or more, the 5th, burner noz(zle), 6 is discharging opening, and 7 is rotation tumbler, the 8th, bracing or strutting arrangement, 9 is fume dust remover, the 10th, and charge door.When fuel is during at interior cylinder roasting, can be by radiant heat transfer and flue gas transferring heat, the effectively isolated thermal loss of adiabator layer, inner core is metal material, can contaminated material, and inner core can be divided into two sections or multistage, section with section between assemble expansion joint, effectively prevent the inner core cracking and the breakage that due to thermal expansion, cause, increase the service life.Whole rotary furnace is energy-conservation, clean, the life-span is long, has good economic benefit.
Comparative example:
The industrial internal combustion type high temperature rotating furnace apparatus that certain kaolin roasting is used, inner core is stainless steel straight tube, and expansion joint is not installed in inner core.The high-temperature area section temperature of rotary furnace is 950 ℃~1050 ℃, and industrial operation finds in the time of four months that inner core has breakage, has the insulation material chip of leakage in roasting kaolin particle, thereby out of service, overhauls, dismantles and transform.
Embodiment:
Adopt way of the present invention to transform the industrial internal combustion type high temperature rotating furnace apparatus in above-mentioned comparative example, inner core is multistage, between section and section, expansion joint is installed.Operation after transformation, the high-temperature area section temperature of rotary furnace is 950 ℃~1050 ℃, other operating parameters are all identical with above-mentioned comparative example.Industrial operation time a year and a half, it is stable that roasting kaolin granular mass still keeps, and the damaged situation of inner core does not appear in rotary furnace, maintains normal operation.
The present invention passes through the metal inner core segmentation to internal combustion type rotary furnace, and between section and section, expansion joint is installed, and has extended service life and the continuous operating time of rotary furnace, keeps the stable of product of roasting quality.
Openly as above, but it is not for limiting the present invention to the embodiment of the present invention, and any those skilled in the art without departing from the spirit and scope of the present invention, can make possible change and modification.Therefore, every content that does not depart from technical solution of the present invention, any modification, equivalent variations and the modification above embodiment done according to technical spirit of the present invention, within all falling into the protection domain that the claims in the present invention define.
Claims (4)
1. an internal combustion type high temperature rotating stove, mainly by burner, body of heater, feeder, rotation tumbler and flue gas ash removal, partly formed, it is characterized in that, described rotary furnace body of heater is comprised of the insulation material of metal outer cylinder, metal inner core and filling between the two, and described metal inner core is straight tube and with the cylindrical shell of expansion joint.
2. internal combustion type high temperature rotating stove according to claim 1, is characterized in that, metal inner core can be divided into the multistage of two or more, between section and section, expansion joint is installed.
3. internal combustion type high temperature rotating stove according to claim 2, is characterized in that, that expansion joint can be is U-shaped, in the type of falling Ω, V-type bellows one or more.
4. internal combustion type high temperature rotating stove according to claim 1, is characterized in that, insulation material is that brick pattern piece, plate and/or blanket felt paving are filled out, and is fixed on outer tube inner wall with nail or ring plate.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
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CN201210300555.9A CN103629922A (en) | 2012-08-22 | 2012-08-22 | Internal combustion type high-temperature rotary furnace |
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CN201210300555.9A CN103629922A (en) | 2012-08-22 | 2012-08-22 | Internal combustion type high-temperature rotary furnace |
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CN103629922A true CN103629922A (en) | 2014-03-12 |
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CN201210300555.9A Pending CN103629922A (en) | 2012-08-22 | 2012-08-22 | Internal combustion type high-temperature rotary furnace |
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Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN111578693A (en) * | 2020-04-29 | 2020-08-25 | 中国电子科技集团公司第四十八研究所 | High-cleanliness roller furnace suitable for heat treatment of silicon carbide fibers |
CN111578698A (en) * | 2020-05-19 | 2020-08-25 | 中国电子科技集团公司第四十八研究所 | Roller hearth furnace suitable for heat treatment of silicon carbide fibers |
CN115724601A (en) * | 2022-12-27 | 2023-03-03 | 贺洪江 | Lime kiln capable of producing high-purity calcium oxide and carbon dioxide simultaneously |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
RU2048664C1 (en) * | 1993-07-15 | 1995-11-20 | Советско-швейцарское совместное предприятие "Амко" | Rotary furnace for heat treatment of aluminium fluoride |
US7686612B1 (en) * | 2006-12-28 | 2010-03-30 | Barry Buteau | Rotary kiln seal |
CN201463515U (en) * | 2009-08-27 | 2010-05-12 | 王敬鹏 | Split-type rotary calcining kiln |
CN201508106U (en) * | 2009-09-04 | 2010-06-16 | 西安三瑞实业有限公司 | Rotary calciner for producing alumina |
CN202757420U (en) * | 2012-08-22 | 2013-02-27 | 上海仙佳化工有限公司 | Internal combustion type high-temperature rotary furnace |
-
2012
- 2012-08-22 CN CN201210300555.9A patent/CN103629922A/en active Pending
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
RU2048664C1 (en) * | 1993-07-15 | 1995-11-20 | Советско-швейцарское совместное предприятие "Амко" | Rotary furnace for heat treatment of aluminium fluoride |
US7686612B1 (en) * | 2006-12-28 | 2010-03-30 | Barry Buteau | Rotary kiln seal |
CN201463515U (en) * | 2009-08-27 | 2010-05-12 | 王敬鹏 | Split-type rotary calcining kiln |
CN201508106U (en) * | 2009-09-04 | 2010-06-16 | 西安三瑞实业有限公司 | Rotary calciner for producing alumina |
CN202757420U (en) * | 2012-08-22 | 2013-02-27 | 上海仙佳化工有限公司 | Internal combustion type high-temperature rotary furnace |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN111578693A (en) * | 2020-04-29 | 2020-08-25 | 中国电子科技集团公司第四十八研究所 | High-cleanliness roller furnace suitable for heat treatment of silicon carbide fibers |
CN111578698A (en) * | 2020-05-19 | 2020-08-25 | 中国电子科技集团公司第四十八研究所 | Roller hearth furnace suitable for heat treatment of silicon carbide fibers |
CN111578698B (en) * | 2020-05-19 | 2022-06-21 | 中国电子科技集团公司第四十八研究所 | Roller hearth furnace suitable for heat treatment of silicon carbide fibers |
CN115724601A (en) * | 2022-12-27 | 2023-03-03 | 贺洪江 | Lime kiln capable of producing high-purity calcium oxide and carbon dioxide simultaneously |
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Application publication date: 20140312 |