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溫度達到約100°C時燃料表面和燃料間隙之間的水逐漸蒸發

來源:http://comicbopk.com 發布時間:2019-11-22 瀏覽次數:
  顆粒狀燃料是在對秸稈的原料進行干燥,粉碎等預處理后,在成型裝置中通過機械加壓法得到的具有形狀和密度的固體燃料。 那么燃燒木屑顆粒燃料的過程是什么? 以下小系列將向您介紹每個人。
木屑顆粒機批發
  Granular fuel is a kind of solid fuel with shape and density, which is obtained by mechanical pressure method in the molding device after drying, crushing and other pretreatment of straw raw materials So what is the process of burning sawdust pellet fuel The following small series will introduce you to everyone.
  1.在生物顆粒設備預熱和干燥階段之后,將燃料加熱并點燃。 在輻射熱流的作用下,當溫度達到約100°C時,燃料表面和燃料間隙之間的水逐漸蒸發,生物顆粒設備逐漸從液體變為氣體傳播到空中。
  1. After the pre heating and drying phase of the bio particle equipment, heat and ignite the fuel Under the action of radiation heat flow, when the temperature reaches about 100 ° C, the water between the fuel surface and the fuel gap gradually evaporates, and the bio particle equipment gradually changes from liquid to gas and spreads into the air.
  2.在生物顆粒設備熱解燃燒階段,隨著燃燒溫度的升高,燃料中分子量小的成分被熱解和氣化,并且在達到點火點之后發生氣相燃燒。 通過熱解氣化得到的主要產物是CO和H2。
  2. In the pyrolysis and combustion stage of the bio particle equipment, with the increase of combustion temperature, the components with small molecular weight in the fuel are pyrolyzed and gasified, and gas-phase combustion occurs after reaching the ignition point The main products obtained by pyrolysis and gasification are CO and H2.
  3.在固定碳燃燒階段,殘留在燃料中的固定碳被揮發物的初次燃燒所包圍。 氧氣不能接觸碳的表面。 一段時間后,焦炭開始燃燒。 在此階段,固定碳主要分別與氧氣,二氧化碳和水蒸氣反應。 在這個階段,燃燒速率增加并且出現二燃燒速率峰值。
  3. In the fixed carbon combustion stage, the residual fixed carbon in the fuel is surrounded by the initial combustion of the volatiles Oxygen cannot contact the surface of carbon After a period of time, the coke began to burn In this stage, fixed carbon reacts with oxygen, carbon dioxide and water vapor respectively In this stage, the combustion rate increases and the second combustion rate peak appears.
  4.在燃盡階段,隨著燃燒的進行,燃燒速率逐漸降低,灰分也增加,并且剩余的焦炭被灰燼包裹,這阻礙了揮發物的擴散,從而阻礙了焦炭的持續燃燒。導致較低的燃燒速率。 直到燒光。 同時,殘留的碳出現在灰燼中。
  4. In the burnout stage, with the combustion going on, the combustion rate gradually decreases, the ash content also increases, and the remaining coke is wrapped by ash, which hinders the diffusion of volatile matter, thus hinders the continuous combustion of coke. Results in a lower combustion rate Until it burns out At the same time, residual carbon appears in the ash.
  以上是關于生物顆粒機顆粒燃料的燃燒過程。生物顆粒設備生產的燃料的燃燒過程實際上是揮發性物質和焦炭的燃燒過程。 盡管前者占燃燒時間的15%,但釋放的熱量占總熱量的65%。
  The above is about the combustion process of particulate fuel in the bio particle equipment. The combustion process of the fuel produced by the bio particle equipment is actually the combustion process of volatile matter and coke Although the former accounts for 15% of the combustion time, the heat released accounts for 65% of the total heat.
  許多生物顆粒設備操作員沒有日常維護和故障維修問題的經驗,會導致無法及時修復成大故障的小問題,大大縮短了生物顆粒設備的使用壽命。因此,了解和學習生物顆粒設備的故障和解決方案以及日常維護工作非常重要。
  Many operators of bio particle equipment do not have the experience of daily maintenance and fault maintenance, which will lead to small problems that cannot be repaired into large faults in time, and greatly shorten the service life of bio particle equipment. Therefore, it is very important to understand and learn the faults and solutions of the bio particle equipment as well as the routine maintenance work.

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