WO2015003300A1 - 使用醇基清洁燃料大幅提高工业炉窑热效率的燃烧方法 - Google Patents

使用醇基清洁燃料大幅提高工业炉窑热效率的燃烧方法 Download PDF

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Publication number
WO2015003300A1
WO2015003300A1 PCT/CN2013/078999 CN2013078999W WO2015003300A1 WO 2015003300 A1 WO2015003300 A1 WO 2015003300A1 CN 2013078999 W CN2013078999 W CN 2013078999W WO 2015003300 A1 WO2015003300 A1 WO 2015003300A1
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alcohol
fuel
furnace
industrial
combustion
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PCT/CN2013/078999
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English (en)
French (fr)
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宋贵中
邓和平
周磊
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Song Guizhong
Deng Heping
Zhou Lei
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Priority to PCT/CN2013/078999 priority Critical patent/WO2015003300A1/zh
Publication of WO2015003300A1 publication Critical patent/WO2015003300A1/zh

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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23C—METHODS OR APPARATUS FOR COMBUSTION USING FLUID FUEL OR SOLID FUEL SUSPENDED IN  A CARRIER GAS OR AIR 
    • F23C5/00—Disposition of burners with respect to the combustion chamber or to one another; Mounting of burners in combustion apparatus
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F27—FURNACES; KILNS; OVENS; RETORTS
    • F27B—FURNACES, KILNS, OVENS, OR RETORTS IN GENERAL; OPEN SINTERING OR LIKE APPARATUS
    • F27B17/00—Furnaces of a kind not covered by any preceding group
    • F27B17/0016—Chamber type furnaces
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F27—FURNACES; KILNS; OVENS; RETORTS
    • F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
    • F27D99/00—Subject matter not provided for in other groups of this subclass
    • F27D99/0001—Heating elements or systems
    • F27D99/0033—Heating elements or systems using burners

Definitions

  • the invention belongs to the field of energy-saving and environmental protection technologies, and particularly relates to a method for comprehensively improving the utilization rate of thermal energy of an industrial furnace kiln, reducing fuel consumption, reducing pollution emissions, and achieving energy saving and emission reduction effects.
  • the heat radiant panel can block impurities such as soot and carbon particles from being baked in the baking area of the product or outside the furnace body, preventing impurities such as smoke and carbon particles from entering the baking zone or the furnace body of the product, so as not to affect the quality and color of the product, and at the same time heating
  • the heat radiant panel heats or heats the product.
  • the industrial hot blast furnace of this structure can be further divided into two types, and the furnace body of an industrial hot blast furnace includes a furnace 2 and a baking chamber 1 (see Fig. 1)
  • the furnace 2 is in communication with the baking chamber 1, and a heat radiating plate 5 is provided in the furnace 2, and the burner 61 of the burning device 6 is directly aligned with the furnace 2 .
  • Combustion device 6 combustion heating heat radiant panel 5
  • the generated smoke is discharged from the vent hole 21, and the combustion air flows in from the vent hole 21.
  • the heated heat radiating plate 5 heats the air in the furnace 2 by means of heat radiation, and the heated air passes through the fan 4 Transfer to the baking room 1 to bake the prefabricated product placed in the baking compartment 1.
  • Another industrial hot blast furnace comprises a furnace body 7 and a burner 61 of the combustion unit 6 directly aligned with the furnace body 7 (see Figure 2).
  • An automatic ignition device 71 and a heat radiation plate 5 are provided in the furnace body 7, a combustion air inlet pipe 62 is provided on the burner 61, and a manual valve is provided on the combustion air inlet pipe 62.
  • the flame generated by the burner 61 of the burner 6 directly heats the heat radiating plate 5 in the furnace body 7, and the combustion air is supplied from the combustion air inlet duct 62. Flow into.
  • the heated heat radiating plate 5 heats the air in the furnace body 7 by means of heat radiation, and thermally or heat-treats the product 3 placed in the furnace body 7, and the generated smoke is discharged from the chimney 8.
  • the flue gas generated by the above two industrial hot blast stoves not only takes a lot of heat, but also reduces the heat utilization rate when the fuel is burned, and also pollutes the environment, and the structure of the industrial furnace is complicated, and the kiln is increased. Cost of production.
  • the present invention provides a combustion method for greatly improving the thermal efficiency of an industrial furnace by using an alcohol-based cleaning fuel, which greatly improves fuel combustion by using an alcohol-based clean fuel direct burn through a furnace without a heat radiation plate. of Thermal energy utilization and no pollution to the environment.
  • One technical solution of the present invention is to provide a combustion method for greatly improving the thermal efficiency of an industrial furnace by using an alcohol-based cleaning fuel, including:
  • the prefabricated product whose surface cannot be contaminated is fed from the feed port into the baking chamber, the alcohol-based fuel burning device directly heats the air in the furnace, and then is heated by a fan located away from the burner Air is transferred into the baking chamber to bake the preformed product.
  • the industrial furnace is an industrial furnace that does not require a flue gas discharge device.
  • the alcohol-based fuel includes an oxygen scavenger.
  • the oxygen scavenger is hydrogen peroxide.
  • the alcohol-based fuel burning device is an alcohol-based dedicated burner.
  • Another technical solution of the present invention is to provide a combustion method for greatly improving the thermal efficiency of an industrial furnace by using an alcohol-based cleaning fuel, including:
  • a prefabricated product whose surface cannot be contaminated is fed into the furnace body from the feed port, and the alcohol-based fuel burning device directly heats the furnace body to fire the preformed product.
  • the industrial furnace is an industrial furnace that does not require a flue gas discharge device.
  • the alcohol-based fuel includes an oxygen scavenger.
  • the oxygen scavenger is hydrogen peroxide.
  • an automatic ignition device is provided in the furnace body, a combustion air inlet duct is provided on the burner, and a manual valve is provided on the combustion air inlet duct.
  • the invention overcomes the traditional technical prejudice that the technicians in the industry think that the surface can not be polluted, and must use the radiant panel during the heat treatment, design a new industrial furnace kiln without heat radiation board or the traditional industrial furnace kiln
  • the structure is modified to remove the heat radiation plate, and the heated product can be directly burned by using the alcohol-based fuel; the newly designed or modified industrial furnace has a simple structure, and the construction of the furnace is reduced because there is no heat radiation plate and chimney. cost.
  • an alcohol-based fuel is used as a fuel for the alcohol-based fuel combustion device, and the alcohol-based fuel combustion device uses a direct convection method for heat transfer.
  • the product is subjected to thermal processing or heat treatment.
  • Alcohol-based fuel not only has rapid ignition, strong vigor, high calorific value, and calorific value in the range of 5000Kcal/K g to 10000Kcal/Kg. It has the advantages of complete combustion, smokelessness and non-toxicity when burned. It will not emit harmful gases, will not pollute the environment, and improve the heat utilization rate of alcohol-based fuels.
  • FIG. 1 is a schematic cross-sectional view of an embodiment of a conventional industrial furnace.
  • FIG. 2 is a schematic cross-sectional view of another embodiment of a conventional industrial furnace.
  • Figure 3 is a schematic cross-sectional view showing an embodiment of an industrial furnace in the present invention.
  • Figure 4 is a schematic cross-sectional view showing another embodiment of the industrial furnace of the present invention.
  • the invention discloses a combustion method for greatly improving the thermal efficiency of an industrial hot blast furnace by using an alcohol-based cleaning fuel, comprising:
  • the prefabricated product whose surface cannot be contaminated is fed from the feed port into the baking chamber, the alcohol-based fuel burning device directly heats the air in the furnace, and then is heated by a fan located away from the burner Air is transferred into the baking chamber to bake the preformed product.
  • the industrial hot blast furnace is an industrial hot blast furnace without a chimney and other flue gas discharge devices (see Figure 3 for the specific structure).
  • the alcohol-based fuel includes an oxygenator and a calorific value increasing agent, the oxygenator is hydrogen peroxide, the calorific value increasing agent is acetone or petroleum ether, and the combustion device is an alcohol-based fuel burning device, the alcohol group
  • the fuel burning device is an alcohol-based dedicated burner.
  • the prefabricated product may be a paint-like product, such products cannot be directly heated by the alcohol-based combustion device, and need to be heated by baking, in order to prevent the structure of the product from being exposed by the alcohol-based combustion device. Destruction, which affects the quality of the product.
  • FIG. 3 discloses an embodiment of an industrial furnace in the present invention.
  • the industrial furnace is an industrial hot blast furnace, and the industrial hot blast furnace includes a furnace 200 and a baking chamber 100.
  • the furnace 200 and the baking chamber 100 are in communication with each other, and a combustion device 600 is disposed on the crucible wall of the furnace 200.
  • the combustion device 600 is an alcohol-based fuel combustion device, and the alcohol-based fuel combustion device is an alcohol-based A dedicated burner in which the burner 610 of the alcohol-based fuel combustion apparatus is directly aligned.
  • a venting hole 210 is defined in the wall of the furnace 200, and a fan is disposed at a position on the wall of the furnace 200 away from the venting hole 210.
  • Combustion air flows in from the vent 210, and the alcohol-based fuel combustion device combusts the air in the baking chamber 100.
  • the heated air is transferred into the baking chamber 100 through the fan 400, and the prefabricated product 300 placed on the surface of the baking chamber 100 is not contaminated.
  • the industrial hot blast furnace is an industrial hot blast furnace that does not require a chimney and other flue gas discharge devices, and has no heat radiation plate, and uses an alcohol-based fuel as a fuel for the alcohol-based fuel combustion device.
  • the prefabricated product may be a paint-based or spray-like product, such products cannot be directly heated by the alcohol-based combustion device, and need to be heated by baking, in order to prevent the open flame generated by the alcohol-based combustion device.
  • the structural damage of the product affects the quality of the product.
  • Another combustion method using the alcohol-based cleaning fuel to greatly improve the thermal efficiency of an industrial hot blast furnace according to the present invention includes:
  • a prefabricated product whose surface cannot be contaminated is fed into the furnace body from the feed port, and the alcohol-based fuel burning device directly heats the furnace body to fire the preformed product.
  • the industrial hot blast furnace is an industrial hot blast furnace without a chimney and other flue gas discharge devices (see Figure 4 for the specific structure).
  • the alcohol-based fuel includes an oxygenator and a calorific value increasing agent, the oxygenator is hydrogen peroxide, the calorific value increasing agent is acetone or petroleum ether, and the alcohol-based fuel burning device is an alcohol-based burning device,
  • the alcohol-based fuel burning device is an alcohol-based dedicated burner.
  • the prefabricated product may be a ceramic product, and the product may be directly heated directly in the furnace body by the alcohol-based fuel burning device without damaging the structure of the product without affecting the quality of the product.
  • An automatic ignition device is disposed in the furnace body, and a combustion air inlet pipe is disposed on the combustion nozzle, and a manual valve is disposed on the combustion air inlet pipe.
  • FIG. 4 discloses another embodiment of the industrial furnace of the present invention.
  • the industrial furnace is an industrial hot blast furnace, the industrial hot blast furnace includes a furnace 700, and the combustion device 600 is disposed.
  • the combustion device 600 is an alcohol-based fuel combustion device, and the alcohol-based fuel combustion device is an alcohol-based dedicated burner.
  • An automatic ignition device 710 is disposed in the furnace body 700.
  • a combustion air inlet duct 620 and a manual valve 630 are disposed on the burner 610, and a chimney 800 is further disposed in the furnace body 700.
  • the burner body 610 of the alcohol-based fuel combustion apparatus is directly aligned with the furnace body 700, and the mixture of the alcohol-based fuel and the air ejected from the burner 610 is spotted by the automatic ignition device 710, and the generated flame is directly
  • the inside of the furnace body 700 is heated, and the prefabricated product 300 placed on the inner surface of the furnace body 700 is not contaminated. .
  • the industrial hot blast furnace is an industrial hot blast furnace without a chimney and other flue gas discharge devices, and has no heat radiation plate, and uses an alcohol-based fuel as a fuel for the alcohol-based fuel combustion device.
  • the prefabricated product may be a ceramic product, and such a product may be directly heated by the alcohol-based combustion device without damaging the structure of the product without affecting the quality of the product.
  • the alcohol-based combustion device should achieve the following technical properties and indicators:
  • the main components that should be included in general are: air supply mechanism, fuel mechanism, automatic control mechanism, and automatic control servo mechanism. Motor, blower, fuel pump, fuel filter, fuel flow regulator, air flow regulator, air regulator, air distribution, air and fuel linkage adjustment, data acquisition sensor group, safety solenoid valve, fuel solenoid valve, flow Solenoid valves, fuel evaporators, fuel atomizers, ignition devices, flame detectors, and control boxes.
  • This type Alcohol-based burners are commercially available and the specific structure is how they are installed. See the instructions for this type of alcohol-based burner.
  • the fuel line from the fuel pump outlet to the atomizer inlet shall have no fuel leakage for 15 minutes under hydraulic pressure of 1.5 times the design pressure.
  • blower start ⁇ front scavenging ⁇ electrode produces sparks ⁇ establish ignition ⁇ establish main fire flame ⁇ normal combustion ⁇ main fire flame extinguished ⁇ after scavenging ⁇ stop.
  • the positive and negative deviations of the actual heating temperature of the fuel from the set value should be controlled within 12 ° C and 6 ° C respectively.
  • the kiln used in the present invention may be a newly established non-heat radiant panel furnace, and in order to save cost, it may also be a transformation of a conventional industrial kiln to improve the fuel combustion efficiency and heat utilization efficiency, and the original product may be indirectly
  • the heat transfer radiation method is changed to a convective heat transfer method for directly heating the product, and the chimney of the conventional industrial furnace is And other flue gas discharge channels are sealed.
  • the following technical performance and indicators should be achieved:
  • Insulation and sealing materials for the outer body and gap of the kiln with serious heat insulation exceeding the standard shall be insulated and treated to minimize the heat loss of the combustion chamber, heat exchange chamber and circulation duct, and improve the utilization rate of heat energy.
  • Both methods described in the present invention use an alcohol-based fuel, an alcohol-based fuel With methanol as the main component, it is a renewable, cheap and environmentally friendly clean energy source.
  • Methanol raw materials can be selected from coal, heavy oil, natural gas or biomass.
  • the upstream raw materials are widely available, the production process is simple, and the technology is mature. Refineries and nitrogen fertilizer plants all over the world can be jointly produced or transformed.
  • the production of alcohol-based fuels is an important part of coal liquefaction technology and biomass renewable energy technology.
  • the cost of producing alcohol-based fuels on a large scale is much lower than other clean fuels, and it has strong market competitiveness.
  • the alcohol-based fuel in the present invention should also meet the following technical specifications:
  • Comparison project Target emission standard National emission limits Carbon monoxide 200 (mg/m 3 ) 2500 (mg/m 3 ) Sulfur dioxide 60 (mg/m 3 ) 550 (mg/m 3 ) Nitrogen oxides 40 (mg/m 3 ) 120 (mg/m 3 ) Ringman black Level 0 Level 1 carbon dioxide 80000 (mg/m 3 ) 190000 (mg/m 3 )
  • the alcohol-based fuel used in the present invention may be composed of the following components by weight:
  • Rubber swelling inhibitor 1.5% - 2%.
  • the preparation method of this alcohol-based fuel is: First, the fixed weight methanol is injected into the blending tank, and then the pine perfume, hydrogen peroxide, xylene, phytate, benzotriazole, acetone, ferrocene and rubber swelling inhibitor are injected in proportion, and the static 30- 60 In a minute, add the sugar waste liquid and lavender oil, stir for about 10-20 minutes, cover, and let the mixture stand at room temperature for 2-4 hours. Serve.
  • Fuel used for testing non-standard diesel (heat value 10600kcal/kg) and Shenzhen Xingui Energy Company's new alcohol alcohol-based industrial fuel (heat value 6000kcal/kg)
  • Heating requirement Heating muffler Furnace display temperature ( °C )
  • Traditional combustion method (Kangcheng company originally used non-standard diesel, calorific value 10600kcal/kg) The burning method of this patent (the fuel is the new alcohol alcohol-based industrial fuel of Shenzhen Yuangui Energy Company, the calorific value is 6000kcal/kg) time Consumption (kg) time Consumption (kg) 140 °C Up to 240 °C 290 140 0 4.12 0 0.20 150 6 minutes and 28 seconds 5.18 48 seconds 0.34 160 6 minutes 56 seconds 6.27 1 minute 33 seconds 0.96 170 7 minutes 05 seconds 7.4 1 minute 33 seconds 1.68 180 8 points 8.68 1 minute 44 seconds 2.5 190 7 minutes 55 seconds 9.91 1 minute 55 seconds 3.41 200 7 minutes and 57 seconds 11.18 1 minute 58 seconds 4.36 210 6 minutes and 57 seconds 12.35 2 minutes and 12 seconds 5.41 220 9 minutes 35 seconds 13.87 2 minutes and 12 seconds 6.47 230 9 minutes and 47 seconds 15.44 2 minutes 35 seconds 7.71 240
  • the heating method using the combustion method of this patent is faster than the traditional method for heating up time. Seconds, which means that productivity will increase by 332% in the same amount of time.
  • the substantial increase in production capacity has brought huge economic benefits to enterprises.
  • the combustion method of the present invention emits sulfur dioxide, nitrogen oxides, smoke blackness, carbon monoxide, and soot after combustion to near zero.
  • the industrial hot blast furnace kiln using the combustion method described in the present invention has better air quality in the industrial hot blast furnace kiln than the air quality in the Zhuhai urban area with excellent domestic air quality.
  • the present invention overcomes the conventional technical prejudice that a person skilled in the art believes that the surface cannot be contaminated, and must use a heat radiant panel for heating, and designs a new industrial hot blast furnace or a traditional industrial hot blast stove.
  • the structure of the kiln is modified to remove the heat radiation plate, and the heated product can be directly burned by using the alcohol-based fuel; the newly designed or modified industrial hot blast furnace has a simple structure, and the furnace is lowered because there is no heat radiation plate and chimney.
  • the construction cost of the kiln is used as a fuel for the alcohol-based fuel combustion device, and the alcohol-based fuel combustion device uses a direct convection method for heat transfer.
  • the product is subjected to thermal processing or heat treatment.
  • Alcohol-based fuel not only has rapid ignition, strong vigor, high calorific value, and calorific value in the range of 5000Kcal/K g to 10000Kcal/Kg. It has the advantages of complete combustion, smokelessness and non-toxicity when burned. It will not emit harmful gases, will not pollute the environment, and improve the heat utilization rate of alcohol-based fuels.
  • the conventional method uses diesel as a fuel
  • the present invention uses an alcohol-based fuel as a fuel.
  • the present invention can bring the temperature in the industrial furnace to a specified temperature in a short time, and the fuel used. Far less than the traditional method, saving costs and greatly improving work efficiency. If the invention is extended to the whole country, the annual production cost will be as high as hundreds of billions of yuan, and it will not pollute the environment, and truly achieve energy saving and emission reduction, bringing huge economic benefits to the enterprise.

Abstract

一种在工业炉中使用醇基燃料的燃烧方法，包括：a、采用无热辐射板的工业炉窑，在工业炉窑上设置一个以上的醇基燃料燃烧装置（600），醇基燃料燃烧装置（600）的燃烧嘴（610）直接对准工业炉窑的炉膛（200）；b、采用醇基燃料作为醇基燃料燃烧装置（600）的燃料；c、将表面不能被污染的预制产品（300）从进料口送进烘烤室（100）中，醇基燃料燃烧装置（600）直接对炉膛（200）内的空气加热，用风机（400）将被加热的空气转入烘烤室（100）内，对预制产品（300）进行烘烤处理。该燃烧方法不排放有害气体，提高了醇基燃料的热效率。

Description

使用醇基清洁燃料大幅提高工业炉窑热效率的燃烧方法
技术领域
　 本发明属于节能环保技术领域，尤其涉及一种可全面提高工业炉窑热能利用率的方法，降低燃料消耗、减少污染排放，达到节能减排效果。
背景技术
目前，冶炼、焙烧、熔化、加热等工业领域均需要使用工业炉窑对其产品进行热加工或热处理。工业炉窑的广泛使用使其成为工业领域的耗能大户。各种工业炉窑所用的燃料主要是柴油、重油和渣油，但是这些燃料在燃烧后会产生较多的黑烟，对环境造成污染。
传统工业炉窑根据需要进行热加工或热处理的产品类型不同，其结构也会不同。大体上可以分为两大类，一类是产品的质量和色泽不能被污染，另一类是产品的质量和色泽不怕被污染，燃烧装置直接采用热对流的方式对产品进行热加工或热处理。对于质量和色泽不能被污染的预制品进行热加工或热处理时，需要在工业炉窑中设置一个热辐射板，这种工业炉窑又叫工业热风炉窑。热辐射板可以将烟尘及碳颗粒等杂质阻挡在制品烘烤区或炉体外面，防止烟尘及碳颗粒等杂质进入到制品烘烤区或炉体，以免影响产品的质量和色泽，同时通过加热热辐射板对产品进行热加工或热处理。
这种结构的工业热风炉窑又可以分为两种，一种工业热风炉窑的炉体包括炉膛 2 和烘烤室 1 （请参见图 1 ），炉膛 2 与烘烤室 1 相通，在炉膛 2 中设有热辐射板 5 ，燃烧装置 6 的燃烧嘴 61 直接对准的炉膛 2 。燃烧装置 6 燃烧加热热辐射板 5 ，产生的烟从通风孔 21 排出，并且助燃空气从通风孔 21 流进。加热后的热辐射板 5 通过热辐射的方式使炉膛 2 中的空气加热，加热后的空气通过风机 4 转入到烘烤室 1 中，对放置在烘烤室 1 中的预制产品进行烘烤。
另一种工业热风炉窑包括炉体 7 ，燃烧装置 6 的燃烧嘴 61 直接对准的炉体 7 （请参见图 2 ），在炉体 7 中设有一自动点火装置 71 和热辐射板 5 ，在所述燃烧嘴 61 上设有助燃空气入口管道 62 ，在助燃空气入口管道 62 上设有手动阀 63 ，在炉体 7 还设有烟囱 8 。燃烧装置 6 的燃烧嘴 61 产生的火焰直接对炉体 7 内的热辐射板 5 进行加热，助燃空气从助燃空气入口管道 62 流进。加热后的热辐射板 5 通过热辐射的方式使炉体 7 中的空气加热，对放置在炉体 7 内的产品 3 进行热加工或热处理，产生的烟从烟囱 8 排出。
上述两种工业热风炉窑产生的烟气不仅会带走大量热量，使燃料燃烧时产生的热利用率降低，还会对环境造成污染，而且这种工业炉的结构复杂，增加了炉窑的生产成本。
发明 内容
为了克服上述问题，本发明向社会提供一种使用醇基清洁燃料大幅提高工业炉窑热效率的燃烧方法，该方法通过无热辐射板的炉窑利用醇基清洁燃料直烧来大幅提高燃料燃烧时的 热能利用率，且对环境不会造成任何污染 。
本发明的一种技术方案是：提供一种使用醇基清洁燃料大幅提高工业炉窑热效率的燃烧方法，包括：
a. 设计一种无热辐射板的工业炉窑或将传统工业炉窑的热辐射板去除,并在所述工业炉窑上设置一个以上的醇基燃料燃烧装置，所述醇基燃料燃烧装置的燃烧嘴直接对准工业炉窑的炉膛；
b. 采用醇基燃料作为所述醇基燃料燃烧装置的燃料；
c. 将表面不能被污染的预制产品从进料口送进到烘烤室中，所述醇基燃料燃烧装置直接对所述炉膛内的空气加热，然后,用位于远离燃烧嘴的风机将被加热的空气转入所述烘烤室内,对所述预制产品进行烘烤。
作为对本发明的改进，所述工业炉窑是无需烟气排放装置的工业炉窑。
作为对本发明的改进，所述醇基燃料包括增氧剂。
作为对本发明的改进，所述增氧剂是双氧水。
作为对本发明的改进，所述醇基燃料燃烧装置是醇基专用燃烧机。
本发明的另一种技术方案是：提供一种使用醇基清洁燃料大幅提高工业炉窑热效率的燃烧方法，包括：
a. 设计一种无热辐射板的工业炉窑或将传统工业炉窑的热辐射板去除,并在所述工业炉窑上设置一个以上的醇基燃料燃烧装置，所述醇基燃料燃烧装置的燃烧嘴直接对准工业炉窑的炉体；
b. 采用醇基燃料作为所述醇基燃料燃烧装置的燃料；
c. 将表面不能被污染的预制产品从进料口送进到所述炉体中，所述醇基燃料燃烧装置直接对所述炉体内进行直接加热，对所述预制产品进行烧制。
作为对本发明的改进，所述工业炉窑是无需烟气排放装置的工业炉窑。
作为对本发明的改进，所述醇基燃料包括增氧剂。
作为对本发明的改进，所述增氧剂是双氧水。
作为对本发明的改进，在所述炉体中设有一自动点火装置，在所述燃烧嘴上设有助燃空气入口管道，在所述助燃空气入口管道上设有手动阀。
本发明的有益效果：
本发明克服了本行业的技术人员认为对于表面不能被污染的产品，在热处理时必须使用辐射板的传统技术偏见，设计一种新的无热辐射板的工业炉窑或对传统工业炉窑的结构进行改造，去除热辐射板，使用醇基燃料就可以直接燃烧被加热产品；新设计或改造后的工业炉窑，还具有结构简单，由于没有热辐射板和烟囱，降低了炉窑的建造成本。并且采用醇基燃料作为醇基燃料燃烧装置的燃料，醇基燃料燃烧装置采用直接对流方式进行热传递，对 产品进行热加工或热处理。 醇基燃料 不仅点火迅速、活力强、热值高，热值在 5000Kcal/K g ～10000Kcal/Kg范围内 ，燃烧完全、燃烧时无烟、无毒等优点。 不会排放有害气体，不会污染环境，提高了醇基燃料的热量利用率。
附图说明
图1是传统工业炉窑的一种实施例的剖视示意图。　
图２是传统工业炉窑的另一种实施例的剖视示意图。　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　
图３是本发明中工业炉窑的一种实施例的剖视示意图。
图4是本发明中工业炉窑的另一种实施例的剖视示意图。
具体实施方式
本技术领域的普通技术人员应当认识到，本发明中所述的方法不仅适用于无热辐射板的工业炉窑，还适用于将热辐射板去除的传统工业炉窑。为了便于对本发明的理解，下面将结合工业热风炉窑对本发明进行进一步解释说明，下面所述的实施方式仅是用来说明本发明，而并非对本发明的限定，只要在本发明的实质技术原理内，对下述的实施方式所做的适当改变和变化都落在本发明要求保护的范围内。
本发明公布的一种使用醇基清洁燃料大幅提高工业热风炉窑热效率的燃烧方法，包括：
a. 设计一种无热辐射板的工业热风炉窑或将传统工业炉窑的热辐射板去除,并在所述工业热风炉窑上设置一个以上的醇基燃料燃烧装置，所述醇基燃料燃烧装置的燃烧嘴直接对准工业热风炉窑的炉膛；
b. 采用醇基燃料作为所述醇基燃料燃烧装置的燃料；
c. 将表面不能被污染的预制产品从进料口送进到烘烤室中，所述醇基燃料燃烧装置直接对所述炉膛内的空气加热，然后,用位于远离燃烧嘴的风机将被加热的空气转入所述烘烤室内,对所述预制产品进行烘烤。
本方法中，所述工业热风炉窑是无需烟囱及其它烟气排放装置的工业热风炉窑（具体结构请参见图3）。所述醇基燃料包括增氧剂和热值增加剂，所述增氧剂是双氧水，所述热值增加剂是丙酮或石油醚，所述燃烧装置是醇基燃料燃烧装置，所述醇基燃料燃烧装置是醇基专用燃烧机。所述预制产品可以是烤漆类的产品，这类产品不能直接用所述醇基燃烧装置加热，需要用烘烤的方式进行加热，是为了防止所述醇基燃烧装置产生的明火将产品的结构破坏，从而影响产品的质量。
请参见图3，图3所揭示的是本发明中工业炉窑的一种实施例，所述工业炉窑是工业热风炉窑，所述工业热风炉窑包括炉膛200和烘烤室100，所述炉膛200和所述烘烤室100相互连通，一燃烧装置600设置在所述炉膛200的膛壁上，所述燃烧装置600是醇基燃料燃烧装置，所述醇基燃料燃烧装置是醇基专用燃烧机，所述醇基燃料燃烧装置的燃烧嘴610直接对准的所述炉膛200内。在所述炉膛200的膛壁上设有一通风孔210，在所述炉膛200的膛壁上远离所述通风孔210的位置处设有一风机。助燃空气从通风孔210流进，所述醇基燃料燃烧装置燃烧加热所述烘烤室100中的空气。加热后的空气通过风机400转入到烘烤室100中，对放置在烘烤室100中表面不能被污染的预制产品300进行烘烤。
本实施例中，所述工业热风炉窑是无需烟囱及其它烟气排放装置的工业热风炉窑，并且没有热辐射板，采用醇基燃料作为所述醇基燃料燃烧装置的燃料。所述预制产品可以是烤漆类或喷塑类产品，这类产品不能直接用所述醇基燃烧装置加热，需要用烘烤的方式进行加热，是为了防止所述醇基燃烧装置产生的明火将产品的结构破坏，从而影响产品的质量。
本发明所述的另一种使用醇基清洁燃料大幅提高工业热风炉窑热效率的燃烧方法，包括：
a. 设计一种无热辐射板的工业热风炉窑或将传统工业炉窑的热辐射板去除 , 并在所述工业热风炉窑上设置一个以上的醇基燃料燃烧装置，所述醇基燃料燃烧装置的燃烧嘴直接对准工业热风炉窑的炉体；
b. 采用醇基燃料作为所述醇基燃料燃烧装置的燃料；
c. 将表面不能被污染的预制产品从进料口送进到所述炉体中，所述醇基燃料燃烧装置直接对所述炉体内进行直接加热，对所述预制产品进行烧制。
本方法中，所述工业热风炉窑是无需烟囱及其它烟气排放装置的工业热风炉窑（具体结构请参见图4）。所述醇基燃料包括增氧剂和热值增加剂，所述增氧剂是双氧水，所述热值增加剂是丙酮或石油醚，所述醇基燃料燃烧装置是醇基燃烧装置，所述醇基燃料燃烧装置是醇基专用燃烧机。所述预制产品可以是陶瓷产品，这类产品可以用所述醇基燃料燃烧装置直接对所述炉体内进行直接加热，不会破坏产品的结构，不会影响产品的质量。在所述炉体中设有一自动点火装置，在所述燃烧嘴上设有助燃空气入口管道，在所述助燃空气入口管道上设有手动阀。
请参见图4，图4所揭示的是本发明中工业炉窑的另一种实施例，所述工业炉窑是工业热风炉窑，所述工业热风炉窑包括炉体700，燃烧装置600设置在所述炉体700上，所述燃烧装置600是醇基燃料燃烧装置，所述醇基燃料燃烧装置是醇基专用燃烧机。在炉体700中设有一自动点火装置710，在所述燃烧嘴610上设有助燃空气入口管道620和手动阀630，在炉体700还设有烟囱800。所述醇基燃料燃烧装置的燃烧嘴610直接对准的炉体700，从所述燃烧嘴610中喷出的醇基燃料和空气的混合物被所述自动点火装置710点着，产生的火焰直接对所述炉体700内进行加热，对放置在炉体700内表面不能被污染的预制产品300进行烧制 。
本实施例中，所述工业热风炉窑是无需烟囱及其它烟气排放装置的工业热风炉窑，没有热辐射板，采用醇基燃料作为所述醇基燃料燃烧装置的燃料。所述预制产品可以是陶瓷产品，这类产品可以直接用所述醇基燃烧装置加热，不会破坏产品的结构，不会影响产品的质量。
本发明中，所述醇基燃烧装置应达到以下技术性能及指标：
①、一般应包含的主要部件有：送风机构、燃料机构、自动控制机构、自动控制伺服机构。电动机、送风机、燃料泵、燃料过滤器、燃料流量调节装置、空气流量调节装置、调风器、配风器、空气和燃料联动调节装置、数据采集传感器组、安全电磁阀、燃料电磁阀、流量电磁阀、燃料蒸发器、燃料雾化器、点火装置、火焰检测器和控制箱等。这类 醇基燃烧装置可以在市场上买到，具体结构是如何安装在一起，具体请看 这类 醇基燃烧装置的说明书。
②、从燃料泵出口到雾化器入口的燃料管路，在1.5倍设计压力的液压下持续15min应无燃料泄漏。
③、当燃烧机出口静压达到配套炉烘烤室压力的1.1倍时，燃烧机出口空气量应能满足燃烧机负荷调节范围内最大流量燃料正常燃烧的要求。
④、其运作顺序一般应符合下列基本要求：送风机启动→前扫气→电极产生电火花→建立点火→建立主火火焰→正常燃烧→主火火焰熄灭→后扫气→停机。
⑤、在燃烧机负荷调节范围内任一工况下，燃油实际加热温度与设定值的正、负偏差，宜分别控制在12℃和6℃之内。
⑥、当发生点火失败或在正常燃烧发生火焰熄灭故障时，燃烧机应进入锁定状态，并发出声、光报警信号。
⑦、在其负荷调节范围内燃料最大流量下正常燃烧时，烟气中的CO 2 含量变化应不超过±0.5%；烟气的排烟热损失Q 2 和CO含量应符合：Q 2 ≤3.5%，CO≤0.020%；NO X ≤150mg/M 3 。
⑧、在负荷调节内变换燃烧机负荷时，无脱火、熄火、冒黑烟等不良现象发生，火焰无明显偏斜和脉冲振动。调节过程中火焰变化应连续、稳定，负荷调节比为1：2.5。
本发明使用的炉窑可以是新建立的无热辐射板炉窑，为了节约成本，也可以是对传统工业炉窑进行改造，提高燃料燃烧效率和热利用效率的综合改造，将原来对产品间接加热的热传递辐射方式改为对产品直接加热的对流热传递方式，并且将传统工业炉窑的烟囱 及其它烟气排放通道 封住。无论是新建的无热辐射板炉窑，还是改造的无热辐射板传统工业炉窑，都应达到以下技术性能及指标：
①、构造强化 工业炉窑 ，改善燃烧环境，提高燃料燃烬率；（清除原炉 窑 内残留的积碳和燃烧杂质；在燃烧室易发生热流失区域，通过耐火保温材料进行'保温修补'）
②、设置专用燃烧机低过量系数参数运作，降低烟气热损失，提高热能利用率；降低NO X 产生量；
③、封闭炉窑烟气等对清洁能源非必要的排放通道、缝隙，降低循环空气漏风量，减少烟气热损失，提高热能利用率；
④、对隔热严重超标的炉窑外体、缝隙用保温、密封材料进行保温再处理，最大限度减少燃烧室、换热室、循环风道的热损耗，提高热能利用率。
本发明所述的两种方法，都使用的是 醇基燃料，醇基燃料 以甲醇原料为主要成分，是一种可再生的廉价、环保性清洁能源。甲醇原料可以选用煤炭、重油、天然气或生物质等为原材料，其上游原材料来源广泛、生产工艺简单、技术成熟，世界各地的炼油厂、氮肥厂均可联产或转型生产。生产醇基燃料又是煤炭液化技术和生物质可再生能源技术的重要组成部分，规模生产醇基燃料的成本远低于其他清洁燃料，具有极强的市场竞争力。
本发明中的 醇基燃料还 应达到以下技术指标：
工业醇基清洁燃料生产技术指标参数
项目 指标（1#）
水： % ≥ 5
密度： （20℃） g/cm3 ≥ 0.83
机械杂项： % ＜ 0.05
凝点： ℃ ＜ -30
开口引燃温度： ℃ ＞ 400
50% 馏出温度： ℃ ＜ 80
总硫含量： % ＜ 0.015
燃烧温度： ℃ ＞ 1200
静态热值： kj/kg ＞ 20000
甲醛试验： 品红不呈蓝色
工业领域燃烧烟气排放指标参数
对比项目 目标排放标准 国家规定排放限值
一氧化碳 200 （mg/m3） 2500 （mg/m3）
二氧化硫 60 （mg/m3） 550 （mg/m3）
氮氧化物 40 （mg/m3） 120 （mg/m3）
林格曼黑度 0 级 1 级
二氧化碳 80000 （mg/m3） 190000 （mg/m3）
本发明中所使用的 醇基燃料 可以由下述重量百分比的组份组成：
甲醇： 65%-70% 榨糖废液： 10%-15%
松香水： 5%-8% 含量为 27.5% 的双氧水： 1%-3%
二甲苯： 1.5%-3% 植酸盐： 1%-3%
苯并三唑 :1.5%-2% 丙酮： 3%-5%
二茂铁： 0.01%-0.05% 薰衣草油： 0.1%-0.5%
橡胶溶胀抑制剂： 1.5%-2% 。
这种 醇基燃料的制备方法是： 先将定重的甲醇注入到调和罐内，然后，按比例依次将松香水、双氧水、二甲苯、植酸盐、苯并三唑、丙酮、二茂铁和橡胶溶胀抑制剂注入，静止 30-60 分钟，再注入榨糖废液及薰衣草油，搅拌约 10-20 分钟，封盖，在常温下让混合液静止 2-4 小时，即成。
为了进一步说明本发明所带来技术效果，本申请人对本发明方法和传统方法做了一个工业应用测试对比：
测试时间：2013年4月17日
测试地点：广东康城五金有限责任公司
测试产品：摩托车消音器
测试所用燃料：非标柴油（热值10600kcal/kg）与深圳源圭能源公司中新醇醇基工业燃料（热值为6000kcal/kg）
测试使用燃烧设备：柴油燃烧机与醇基燃料燃烧装置
测试数据对比分析
（一）测试数据
升温
要求		 加热消声器 炉膛显示温度 ( ℃ ) 传统燃烧方式（康成公司原使用非标柴油，热值10600kcal/kg） 本专利燃烧方式（燃料为深圳源圭能源公司中新醇醇基工业燃料，热值为6000kcal/kg）
时间 耗量（kg） 时间 耗量
(kg)
140 ℃
至 240 ℃		 290 支 140 0 4.12 0 0.20
150 6 分28秒 5.18 48 秒 0.34
160 6 分56秒 6.27 1 分33秒 0.96
170 7 分05秒 7.4 1 分33秒 1.68
180 8 分 8.68 1 分44秒 2.5
190 7 分55秒 9.91 1 分55秒 3.41
200 7 分57秒 11.18 1 分58秒 4.36
210 6 分57秒 12.35 2 分12秒 5.41
220 9 分35秒 13.87 2 分12秒 6.47
230 9 分47秒 15.44 2 分35秒 7.71
240 12 分48秒 17.51 2 分33秒 8.93
合 计 83 分32秒 13.39 19 分05 秒 8.93
（二）、数据分析
项类名目 传统燃烧方式（非标柴油，热值10600kcal/kg） 本专利燃烧方式（燃料为深圳源圭能源公司中新醇醇基工业燃料，热值为6000kcal/kg
需要时间 83 分 32 秒 19 分 05 秒
燃料耗量 (Kg) 13.39 8.93
产品数量（件） 290 290
提高生产效率（ % ） － 332%
单位产品燃料耗量 0.04617 0.03079
单位产品能耗节约 33.31%
（三）、综合效益分析
在节能方面，对比测试数据的经济效益分析如下：
燃料单价 ( 元 / 公斤 ) 6.6 4.9
燃料总价 ( 元 ) 88.37 43.76
单位产品燃料费 ( 元 / 件 ) 0.3047 0.1509
降低燃料成本（ % ） － 50.48%
注：仅针对收到基利用率数据的对比分析。不包含任何节能减排的其他效益计算。
在提高产能方面，从对比测试的数据中可以看出，在同等条件下，采用本专利所涉燃烧方法升温时间比传统方法升温时间快 64 分 27 秒，这意味着在同样的时间内生产效率将提高 332% ，产能的大幅提高，给企业带来巨大的经济效益。在环保方面，本发明中的燃烧方法在燃烧后二氧化硫、氮氧化物、烟气黑度、一氧化碳、烟尘的排放均接近零。并且在最新一次的燃烧环保排放测试中，使用本发明中所述燃烧方法的工业热风炉窑，其工业热风炉窑内的空气质量甚至比国内空气质量优良的珠海市区的空气质量还要好。
综上所述，本发明克服了本行业的技术人员认为对于表面不能被污染的产品，在加热必须使用热辐射板的传统技术偏见，设计一种新的工业热风炉窑或对传统工业热风炉窑的结构进行改造，去除热辐射板，使用醇基燃料就可以直接燃烧被加热产品；新设计或改造后的工业热风炉窑，还具有结构简单，由于没有热辐射板和烟囱，降低了炉窑的建造成本。并且采用醇基燃料作为醇基燃料燃烧装置的燃料，醇基燃料燃烧装置采用直接对流方式进行热传递，对 产品进行热加工或热处理。 醇基燃料 不仅点火迅速、活力强、热值高，热值在 5000Kcal/K g ～10000Kcal/Kg范围内 ，燃烧完全、燃烧时无烟、无毒等优点。 不会排放有害气体，不会污染环境，提高了醇基燃料的热量利用率。
在相同的条件下， 传统方法采用柴油做为燃料，本发明使用醇基燃料做为燃料,本发明与传统方法相比，本发明在很短的时间内就可以使工业炉窑中的温度达到指定温度，使用的燃料远远低于传统方法，节省了费用，大幅度地提高了工作效率。如果将本发明推广到全国，那么每年节约的生产成本会高达上千亿元，并且不会污染环境，真正做到了节能减排，给企业带来巨大的经济效益。

Claims (1)

1. 一种使用醇基清洁燃料大幅提高工业炉窑热效率的燃烧方法，其特征在于，包括：
a.设计一种无热辐射板的工业炉窑或将传统工业炉窑的热辐射板去除,并在所述工业炉窑上设置一个以上的醇基燃料燃烧装置，所述醇基燃料燃烧装置的燃烧嘴直接对准工业炉窑的炉膛；
b.采用醇基燃料作为所述醇基燃料燃烧装置的燃料；
　 c.将表面不能被污染的预制产品从进料口送进到烘烤室中，所述醇基燃料燃烧装置直接对所述炉膛内的空气加热，然后,用位于远离燃烧嘴的风机将被加热的空气转入所述烘烤室内,对所述预制产品进行烘烤。
2. 如权利要求1所述的使用醇基清洁燃料大幅提高工业炉窑热效率的燃烧方法，其特征在于：所述工业炉窑是无需烟气排放装置的工业炉窑。
3. 如权利要求1或2所述的使用醇基清洁燃料大幅提高工业炉窑热效率的燃烧方法，其特征在于：所述醇基燃料包括增氧剂。
4. 如权利要求3所述的使用醇基清洁燃料大幅提高工业炉窑热效率的燃烧方法，其特征在于：所述增氧剂是双氧水。
5. 如权利要求1或2所述的使用醇基清洁燃料大幅提高工业炉窑热效率的燃烧方法，其特征在于：所述醇基燃料燃烧装置是醇基专用燃烧机。
6. 一种使用醇基清洁燃料大幅提高工业炉窑热效率的燃烧方法，其特征在于，包括：
a.设计一种无热辐射板的工业炉窑或将传统工业炉窑的热辐射板去除,并在所述工业炉窑上设置一个以上的醇基燃料燃烧装置，所述醇基燃料燃烧装置的燃烧嘴直接对准工业炉窑的炉体；
b.采用醇基燃料作为所述醇基燃料燃烧装置的燃料；
c.将表面不能被污染的预制产品从进料口送进到所述炉体中，所述醇基燃料燃烧装置直接对所述炉体内进行直接加热，对所述预制产品进行烧制。
7. 如权利要求6所述的使用醇基清洁燃料大幅提高工业炉窑热效率的燃烧方法，其特征在于：所述工业炉窑是无需烟气排放装置的工业炉窑。
8. 如权利要求6或7所述的使用醇基清洁燃料大幅提高工业炉窑热效率的燃烧方法，其特征在于：所述醇基燃料包括增氧剂。
9. 如权利要求8所述的使用醇基清洁燃料大幅提高工业炉窑热效率的燃烧方法，其特征在于：所述增氧剂是双氧水。
10. 如权利要求6或7所述的使用醇基清洁燃料大幅提高工业炉窑热效率的燃烧方法，其特征在于：在所述炉体中设有一自动点火装置，在所述燃烧嘴上设有助燃空气入口管道，在所述助燃空气入口管道上设有手动阀。
PCT/CN2013/078999 2013-07-08 2013-07-08 使用醇基清洁燃料大幅提高工业炉窑热效率的燃烧方法 WO2015003300A1 (zh)

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