阅读说明：本技术 减少包括热交换器的焚烧炉的所述热交换器的腐蚀的方法 (The method for reducing the corrosion of the heat exchanger of the incinerator including heat exchanger ) 是由 约瑟夫·扬·彼得·比尔曼 于 2018-03-26 设计创作，主要内容包括：减少焚烧炉的热交换器的腐蚀的方法,所述方法包括以下步骤：-将含氧气体和颗粒燃料引入至燃烧室中,-将包括i)粘土和ii)碳酸钙的添加剂材料引入至焚烧炉中,-使用热交换器从烟气中回收热量。为了保护热交换器,添加剂材料是被引入至热交换器上游的烟气中的粉末状材料,所述粉末状添加剂材料的粉末颗粒包括细粒,每个细粒包括粘土和碳酸钙的混合物,相对于碳酸钙按重量计至少10％是以下形式的碳酸钙：当在氮气气氛下以10JC每分钟的升温速率借助于热重分析表征时,当达到875℃的温度时该碳酸钙已经完全分解。(The method for reducing the corrosion of the heat exchanger of incinerator, it the described method comprises the following steps :-oxygen-containing gas and granular fuel are introduced in combustion chamber, to include i) clay and ii) additive material of calcium carbonate is introduced in incinerator ,-using heat exchanger heat is recycled from flue gas.In order to protect heat exchanger; additive material is the dusty material being introduced into the flue gas of heat exchanger upstream; the powder particle of the powdered additive material includes particulate; each particulate includes the mixture of clay and calcium carbonate; be the calcium carbonate of following form relative to calcium carbonate by weight at least 10%: when being characterized in a nitrogen atmosphere with 10JC heating rate per minute by means of thermogravimetric analysis, when reaching 875 DEG C of temperature, the calcium carbonate decomposes completely.)

1. a kind of method of the corrosion for the heat exchanger (130) for reducing incinerator (100), the incinerator (100) include

Chamber (110), the chamber are used for burning fuel in the presence of a gas containing oxygen,

Heat exchanger (130), and

Exhaust gases passes (120), the exhaust gases passes are used to be generated along the heat exchanger (130) transmitting by the chamber (110) Flue gas to absorb heat from the flue gas；

It the described method comprises the following steps

Oxygen-containing gas and granular fuel are introduced in the chamber (110) to burn the granular fuel and generate flue gas,

To include i) clay and ii) additive material of calcium carbonate is introduced in the incinerator (100),

Heat is recycled from the flue gas using the heat exchanger (130), wherein the additive material is to be introduced into Dusty material in the flue gas of heat exchanger (130) upstream, the powder particle of the powdered additive material Including particulate, each particulate includes the mixture of clay and calcium carbonate, is relative to the calcium carbonate by weight at least 10% The calcium carbonate of following form: when being characterized in a nitrogen atmosphere with 10 DEG C of heating rates per minute by means of thermogravimetric analysis, when It is decomposed completely when reaching 875 DEG C of temperature.

2. according to the method described in claim 1, wherein, relative to the calcium carbonate by weight at least 40% and more preferably At least 70% is the calcium carbonate of following form: when in a nitrogen atmosphere with 10 DEG C of heating rates per minute by means of thermogravimetric analysis When characterization, decomposed completely when reaching 875 DEG C of temperature.

3. method according to claim 1 or 2, wherein the additive material to be introduced in the flue gas, wherein The temperature that the flue gas has is in the range of 875 DEG C to 1050 DEG C, and preferably in the range of 900 DEG C to 1000 DEG C.

4. method according to any of the preceding claims, wherein by mass with the flow relative to the flue gas At least 0.005% rate, preferably by mass at least 0.02% rate, and most preferably by mass at least 0.04% speed Rate introduces the powdered additive material.

5. method according to any of the preceding claims, wherein the incinerator (100) is a part of equipment, The equipment further includes for thermal transition include kaolinic paper waste material unit, wherein having in the presence of a gas containing oxygen Have in the fluidized bed of free space and the kaolin be heat-treated,

Wherein, the fluidized bed operates at a temperature of between 720 to 850 DEG C, and the temperature of the free space is 850 DEG C Or it is lower, to generate the powdered additive material being introduced into the flue gas of the incinerator (100).

6. method according to any of the preceding claims, wherein the weight/weight ratio of calcium carbonate and clay can be converted 1 to 10, preferably 1 to 5, and in the range of more preferable 1 to 3.

7. method according to any of the preceding claims, wherein the water content that the dusty material has is less than 0.9%wt./wt.%, preferably smaller than 0.5%wt./wt..

8. method according to any of the preceding claims, wherein the cigarette from the heat exchanger (130) downstream The material containing additive is collected in gas,

And the part granular materials is introduced back into the flue gas of the heat exchanger (130) upstream.