熱風爐中佈袋除塵器的應用優勢揭示
熱風爐中成都收賬格子磚材質為耐高溫高鉻耐熱鑄鐵RTCr2,允許廢氣最高溫度達450℃,平均廢氣溫度達345℃。廢氣溫度提高,增加瞭中、下部格子磚蓄熱量,從而提高風溫。預燃室結構使火焰不與耐火砌體直接接觸,且預燃室內溫度不超過900℃,對耐火磚和局部過熱沒有直接影響。整個熱風爐成都找人公司壽命隻由矽磚拱頂成都收賬壽命決定,預計可達20~30a.這就提供瞭拱頂、格子磚、耐材內襯和爐殼溫度收賬均勻對稱分佈,減少瞭溫度應力,使熱風爐成都找人公司穩定性大大增強。
The lattice bricks in hot blast stove are made of high temperature and chromium resistant ca印花地坪st iron RTCr2. The maximum exhaust gas temperature is allowed to reach 450 C and the average exhaust gas temperature is 345 C. The exhaust gas temperature increases, increasing the storage capacity of the middle and lower checker bricks, thereby enhancing the air temperature. The structure of the precombustion chamber prevents the flame from directly contacting with the refractory masonry, and the temperature of the precombustion chamber does not exceed 900 C, which has no direct influence on the refractory bricks and local overheating. The service life of the whole hot blast stove is only determined by the service life of the silicon brick vault, which is expected to reach 20-30a. This provides a uniform and symmetrical distribution of the temperature of the vault, the lattice brick, the refractory lining and the shell, reduces the temperature stress and greatly enhances the stability of the hot blast stove. 采用低壓脈沖式佈袋除塵凈化煤氣工藝,減少瞭耐火磚的化學侵蝕,可確保格子磚使用壽命。拱頂、預燃室球頂爐殼內表面噴塗80mm厚的耐酸噴塗料,在高溫作用下,噴塗料與鋼殼結成一體,有保護鋼殼和絕熱的雙重作用,既減少瞭熱損失,又提高瞭熱效率。
The low-pressure pulse bag dust removal process is adopted to purify gas, which reduces the chemical erosion of refractory bricks and ensures the service life of lattice bricks. The inner surface of dome and spherical top furnace shell of precombustion chamber is sprayed with 80 mm thick acid-resistant spraying coating. Under the action of high temperature, the spraying coating is 彩色沥清地坪integrated with steel shell, which has the dual function of protecting steel shell and adiabating heat. It not only reduces heat loss, but also improves heat efficiency.
合理的送風時間、工作周期,充分利用有效蓄熱量,加強瞭中、下部熱交換,減少瞭熱風爐高溫部位的熱波動。既延長瞭耐火材料的壽命,又減少瞭風溫差值,提高瞭實際送風溫度。
Reasonable air supply time and working cycle, make full use of effective heat storage, strengthen the heat exchange between the middle and lower parts, and reduce the heat fluctuation in the high temperature part of the hot blast stove. It not only prolongs the life of refractories, but also reduces the difference between wind and temperature, and improves the actual air supply temperature.