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生物質鍋爐脫硫脫硝設備

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2022-12-02

生物質鍋爐脫硫脫硝設備，生物質鍋爐脫硝有如下特點：①爐膛溫度差別大，生物質鍋爐主要有爐排爐和循環化床爐，每種爐型又分為中溫中壓爐、次高溫次高壓爐、高溫高壓爐，膛溫度分別為?700～760℃、880～950℃、850～1100℃；②生物質中氫元素含量較高，煙氣中含水量也高，可達到15%～30%；③煙塵含堿金屬質量分數較高，可達8%?以上；④二氧化硫、氮氧化物濃度低、波動大，燃燒純生物質時二氧化硫、氮氧化物濃度在120～250mg/m3波動，如燃料中摻雜模板、木材、樹皮，煙氣中二氧化硫、氮氧化物濃度在?250～600?mg/m3波動。

Desulfurization and denitration equipment of biomass boiler, and denitration of biomass boiler have the following characteristics: ① The furnace temperature difference is large, biomass boiler mainly has grate furnace and circulating bed furnace, and each furnace type is divided into medium temperature medium pressure furnace, sub high temperature sub high pressure furnace, and high temperature high pressure furnace, and the chamber temperature is respectively? 700～760℃、880～950℃、850～1100℃； ② The hydrogen element content in biomass is high, and the moisture content in flue gas is also high, which can reach 15%~30%; ③ The content of alkali metal in smoke is high, reaching 8%? above; ④ The concentration of sulfur dioxide and nitrogen oxides is low and fluctuates greatly. When burning pure biomass, the concentration of sulfur dioxide and nitrogen oxides fluctuates between 120 and 250mg/m3. For example, the fuel is mixed with templates, wood and bark, and the concentration of sulfur dioxide and nitrogen oxides in the flue gas is between? 250～600? Mg/m3 fluctuation.

生物質的鍋爐由于燃料種類多、熱值低、給料均勻性差，造成燃燒區內的溫度變化劇烈，鍋爐出口初始氮氧化物排放濃度波動大。生物質鍋爐脫硝首先要穩定爐膛出口NOx的濃度。生物質可采用的煙氣脫硝方式包括：SNCR脫硝技術，SCR脫硝技術，臭氧氧化脫硝技術，ZYY脫硝技術等。

Due to the variety of fuels, low calorific value and poor feed uniformity, the temperature in the combustion zone of biomass boilers changes dramatically, and the initial NOx emission concentration at the boiler outlet fluctuates greatly. The NOx concentration at the furnace outlet must be stabilized first for biomass boiler denitration. The flue gas denitration methods available for biomass include SNCR denitration technology, SCR denitration technology, ozone oxidation denitration technology, ZYY denitration technology, etc.

以上就是為大家介紹的有關生物脫硫的詳細的介紹,希望對您有所幫助.如果您有什么疑問的話,歡迎聯系我們.我們將以的態度,為您提供服務http://0553yf.com

The above is a detailed introduction of biological desulfurization for you, and we hope it will be helpful to you. If you have any questions, please contact us. We will provide services for you with our attitude http://0553yf.com

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