CN201434588Y - Ceramic shuttle-type kiln adopting high-temperature air combustion technology - Google Patents
Ceramic shuttle-type kiln adopting high-temperature air combustion technology Download PDFInfo
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- CN201434588Y CN201434588Y CN2009201851725U CN200920185172U CN201434588Y CN 201434588 Y CN201434588 Y CN 201434588Y CN 2009201851725 U CN2009201851725 U CN 2009201851725U CN 200920185172 U CN200920185172 U CN 200920185172U CN 201434588 Y CN201434588 Y CN 201434588Y
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Abstract
The utility model relates to a ceramic shuttle-type kiln adopting the high-temperature air combustion technology, which is mainly provided with an A group of burners (2) and a B group of burners (10)for alternate combustion, the corresponding A group of regenerators (3), the B group of regenerators (9) and a pipeline for connecting with a four-way reversing valve (4), an air blower (8) and a fumeextractor (7), wherein the A group of burners (2) and the B group of burners (10) are respectively arranged on two sides of a kiln body (1), the air blower is used for regulating the pressure of combustion-supporting air, and the fume extractor is used for regulating the pressure of the kiln. As the fume temperature is low, the heat radiation is less and the combustion efficiency is high, and thepurposes of saving energy and protecting environment can be achieved.
Description
Technical field
The utility model belongs to the gas burning kiln technical field, is specifically related to a kind of ceramic shuttle kiln that adopts HTAC.
Background technology
Shuttle kiln belongs to periodic kilns the kiln, is a kind of Thermal Equipment of high energy consumption high pollution, uses very generally in ceramic industry, and its performance quality not only directly has influence on the quality and the production cost of ceramic product, but also affects our air quality greatly.China's Production of Ceramics is with a long history, various in style, it then is an important link that pottery burns till, along with the continuous development of society and being showing improvement or progress day by day of science and technology, ceramic kiln has experienced from the such evolution of wood kiln, coal pit, oily kiln combustion gas kiln until now, for a long time, ceramic shuttle kiln exists problems such as the heat energy utilization rate is low, seriously polluted; Since the last century the nineties, the shuttle kiln that China is flourish is owing to used the gaseous fuel and the novel light refractory material of cleaning, aspect energy-saving and emission-reduction, obtained good effect, but, fundamentally do not break away from the predicament of high energy consumption, maximum discharge because furnace construction, firing mode and control technology are limit.It was gratifying, just at this moment, a kind of HTAC of international combustion field advanced level of representing just quietly rises in China, HTAC (High Temperature Air Combustion) is called for short HTAC, mainly be by on Industrial Stoves, adopting heat-storage type fume residual heat recovering device, can reclaim the physics heat of high-temperature flue gas to greatest extent, thus energy savings significantly, improve the thermal efficiency of Thermal Equipment, reduce greenhouse gas emission simultaneously atmosphere.
Reclaim fume afterheat and efficient burning and reduce CO just because of HTAC technology handle
2, technology such as NOx discharging organically combines, thereby realize that the energy-conservation and limit of the limit reduces CO
2, the NOx discharge capacity dual purpose, therefore, this technology was researched and developed energetically in a lot of industries of China in recent years, remarkable economic efficiency and environmental benefit have been obtained in some field.Liu Zhaomiao, two professors of Wang Xiuli compare comprehensive analysis in " Beijing University of Technology's journal " the 7th phase in 2006 to the current situation and the trend of domestic HTAC, point out " the HTAC technology is to the energy-conservation of Thermal Equipment industry and fall dirt and have very big facilitation; therefore; it is imperative further to develop and promote this advanced combustion technology, and development prospect is wide ".At present, the HTAC technology by sector applications such as iron and steel, building materials, boilers in Thermal Equipment, but in the application of ceramic kiln the precedent (drawn from Jiangxi Province's scientific information research and looked into new result) of success is not arranged so far.
As everyone knows, ceramic shuttle kiln can produce a large amount of flue gas and CO in sintering process
2Deng pernicious gas, our existing ceramic shuttle kiln, the a large amount of fume waste heats that in sintering process, produce, all be directly to be discharged in the air by chimney, the heat energy utilization rate is very low, test according to the relevant expert, periodic kilns the kiln is in sintering process, be used to fire the heat energy that product consumes and only account for 5.37% of total energy consumption, remaining accumulation of heat except kiln, the heat radiation, the fume waste heat of discharging from chimney accounts for 48.33% of total energy consumption, not only cause a large amount of energy wastes, and polluted the environment that we mankind depend on for existence.
Summary of the invention
The purpose of this utility model provides a kind of ceramic shuttle kiln that reduces energy waste on the basis of satisfying the requirement of ceramic firing process, assurance product quality, reduce environmental pollution.
A kind of ceramic shuttle kiln that adopts HTAC that the utility model proposes, comprise kiln and monitoring thereof and control system, it is characterized in that: the A group burner and the B group burner of one group of burning that hockets respectively established in the both sides of kiln body, and corresponding A organizes regenerator, B organizes regenerator, described A group regenerator and B group regenerator inside all are provided with heat storage, and be provided with pipeline and connect with four-way change-over valve, the ajutage of air blast and the smoke exhaust pipe of induced-draft fan also connect with described four-way change-over valve.
Above-mentioned two groups of burners of the present utility model switch by the self-timing of four-way change-over valve, hocket burning and smoke evacuation, not ad hoc throat.During smoke evacuation, high-temperature flue gas enters regenerator through burner and carries out heat exchange, heat storage is heated near kiln temperature, flue gas is being discharged from chimney by the frequency conversion induced-draft fan after the cooling rapidly, (can be set the different time) after a period of time according to the ceramic product characteristic, the four-way change-over valve action, from the air at room temperature of the air blast regenerator of flowing through, carry out heat exchange with heat storage, with air preheat to 800～1000 ℃, in burner,, take fire with fuel mix, a combustion period is finished at this point, thereby realizes the utility model purpose.
The utility model 4.5M
3Kiln has been manufactured experimently and has been finished, so far six months have been moved, during this period, carried out the firing test of various potteries, pigment product, result of the test shows: product quality and qualification rate reach technological requirement fully, and energy-saving effect is obvious, compare with the traditional shuttle kiln with volume, energy-conservationly reach more than 40% CO
2Also reduce more than 40% with the NOx discharge capacity.
Description of drawings
Accompanying drawing is the utility model structural representation.
The specific embodiment
Further specify below in conjunction with accompanying drawing with to the utility model:
The both sides of kiln body 1 are set up separately some to burner, and the burner of the same side is one group, form A group burner 2 and B group burner 10.A group regenerator 3 and B group regenerator 9 inside all are provided with heat storage, and are provided with pipeline and connect with four-way change-over valve 4, and the ajutage 5 of air blast 8 and the smoke exhaust pipe 6 of induced-draft fan 7 also connect with described four-way change-over valve 4.The theory of combustion of the present utility model is: when 10 burnings of B group burner, high-temperature flue gas enters A regenerator 3 through A group burner 2 and carries out heat exchange, heat storage 3 is heated near kiln temperature, and flue gas is discharging from chimney by frequency conversion induced-draft fan 7 after the cooling rapidly, through after a while, four-way change-over valve 4 automaticallyes switch, change the burning of A group into, B organizes smoke evacuation, and so the pulsed burning is carried out in circulation, regulate combustion air pressure by converter technique control air blast 8, induced-draft fan 7 is regulated furnace pressure.
Heat storage is selected ceramic honey comb, because it has good thermal shock stability, high temperature high voltage resistant, anti-oxidant and characteristic such as the burn into specific area is big, drag losses is little.
The nozzle of burner is selected high speed nozzle for use, because powerful jet burning system can reduce the temperature difference in the kiln, improves the kiln temperature rapidly, realizes that rapid isothermal burns till.Burner has and the service duct separated structures of air and fuel so that the blending dilution is burnt fuel in high-temperature low-oxygen concentration atmosphere, can be able to be realized that oxidation, reducing atmosphere burn till simultaneously.
Four-way change-over valve 4 is a structure of linear motion; it is the most frequent key equipment of operation in the kiln sintering process; exchange system selects for use inner guide electromagnetic valve to finish the commutation action; and be equipped with specially that a cover is held concurrently automatically, manual function is the reversal valve control set for adjusting of one, guarantee the safe and reliable operation of reversal valve.
In the gaseous-pressure control system, adopt comparatively advanced at present air/combustion gas proportion control control valve, thereby it is to change the power that gaseous-pressure is regulated burner accordingly by regulating air door change air pressure, to obtain the required pressure of burner under the different conditions, satisfied pottery burns till the requirement to temperature, pressure, atmosphere, therefore, the shuttle kiln of this employing HTAC not only can be fired the oxidizing flame pottery, also can fire the reducing flame pottery fully.
Aspect the temperature of kiln, pressure control, selected P series microcomputer programmable controller for use, it can be according to feedback signal closed-loop control kiln temperature, the furnace pressure of temperature, pressure sensor, the user then can be furnished with perfect monitoring and the control device of a cover such as combustion gas low pressure alarming, automatic ventilation, automatic vaporization simultaneously according to the different different sintering curves of ceramic product input.
In air feed system and smoke evacuation system, adopt the variable frequency adjustment control technology, solved furnace pressure and the unmanageable problem of atmosphere that the smoke evacuation of traditional shuttle kiln natural style is caused, improved the control accuracy of furnace pressure, burnt till for the ceramic energy saving furnace atmosphere and provide safeguard.
Claims (7)
1, a kind of ceramic shuttle kiln that adopts HTAC, comprise kiln body (1) and monitoring and control system, it is characterized in that: the A group burner (2) and the B group burner (10) of one group of burning that hockets respectively established in the both sides of kiln body (1), and corresponding A group regenerator (3) and B group regenerator (9), described A group regenerator (3) and B group regenerator (9) inside all are provided with heat storage, and be provided with pipeline and connect with four-way change-over valve (4), the ajutage (5) of air blast (8) and the smoke exhaust pipe (6) of induced-draft fan (7) also connect with described four-way change-over valve (4).
2, according to claim 1 described ceramic shuttle kiln, it is characterized in that: described heat storage is a ceramic honey comb.
3, according to claim 1 described ceramic shuttle kiln, it is characterized in that: what described A group burner (2) and B group burner (10) adopted is high speed nozzle, and the air of each burner separates with fuel feed passage, and two groups of burners hocket and burn and smoke evacuation.
4, according to claim 1 described ceramic shuttle kiln, it is characterized in that: described four-way change-over valve (4) is a structure of linear motion, and inside is provided with guide electromagnetic valve, and is provided with automatic, manual integration reversal valve.
5, according to claim 1 described ceramic shuttle kiln, it is characterized in that: described monitoring and control system are provided with air/combustion gas proportion control control valve.
6, according to claim 1 described ceramic shuttle kiln, it is characterized in that: described monitoring and control system are provided with P series microcomputer programmable controller.
7, according to claim 1 described ceramic shuttle kiln, it is characterized in that: described air blast (8) and induced-draft fan (7) are controlled by variable frequency adjustment.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009201851725U CN201434588Y (en) | 2009-05-26 | 2009-05-26 | Ceramic shuttle-type kiln adopting high-temperature air combustion technology |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009201851725U CN201434588Y (en) | 2009-05-26 | 2009-05-26 | Ceramic shuttle-type kiln adopting high-temperature air combustion technology |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201434588Y true CN201434588Y (en) | 2010-03-31 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2009201851725U Expired - Fee Related CN201434588Y (en) | 2009-05-26 | 2009-05-26 | Ceramic shuttle-type kiln adopting high-temperature air combustion technology |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101846447A (en) * | 2010-06-19 | 2010-09-29 | 太原理工大学 | Down draft kiln |
| CN102435069A (en) * | 2011-12-22 | 2012-05-02 | 郑州祥通耐火陶瓷有限公司 | Roasting device of carbon product |
| CN102607267A (en) * | 2012-03-20 | 2012-07-25 | 朱海生 | Regenerative high-temperature air combustion energy-saving environment-friendly shuttle-type kiln |
| CN103047853A (en) * | 2012-12-21 | 2013-04-17 | 福州市陶瓷行业技术创新中心 | Artistic porcelain cage type multi-atmosphere small kiln |
| CN109028104A (en) * | 2018-07-17 | 2018-12-18 | 江苏泰瑞耐火有限公司 | The device and method of shuttle-type kiln exhaust gas second-time burning |
| CN110657686A (en) * | 2019-09-30 | 2020-01-07 | 武汉长天福瑞达科技有限公司 | Industrial combustion furnace instrument automatic control system |
-
2009
- 2009-05-26 CN CN2009201851725U patent/CN201434588Y/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101846447A (en) * | 2010-06-19 | 2010-09-29 | 太原理工大学 | Down draft kiln |
| CN102435069A (en) * | 2011-12-22 | 2012-05-02 | 郑州祥通耐火陶瓷有限公司 | Roasting device of carbon product |
| CN102607267A (en) * | 2012-03-20 | 2012-07-25 | 朱海生 | Regenerative high-temperature air combustion energy-saving environment-friendly shuttle-type kiln |
| CN103047853A (en) * | 2012-12-21 | 2013-04-17 | 福州市陶瓷行业技术创新中心 | Artistic porcelain cage type multi-atmosphere small kiln |
| CN103047853B (en) * | 2012-12-21 | 2015-08-19 | 福州市陶瓷行业技术创新中心 | Artistic porcelain cage type multi-atmosphere small kiln |
| CN109028104A (en) * | 2018-07-17 | 2018-12-18 | 江苏泰瑞耐火有限公司 | The device and method of shuttle-type kiln exhaust gas second-time burning |
| CN110657686A (en) * | 2019-09-30 | 2020-01-07 | 武汉长天福瑞达科技有限公司 | Industrial combustion furnace instrument automatic control system |
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100331 Termination date: 20170526 |