燃气热风炉使用注意事项,燃气热风炉成都收账使用越来越盛行,目前已经被使用成都找人公司行业包括钢铁行业,电器电厂行业等等.主营:燃气热风炉,燃煤燃气热风炉等热能设备.燃气热风炉针对国内外现有成都收账生物质成型燃料燃烧设备,存在燃烧效率低、炉膛温度过高、积灰和结渣严重、不适合块状和棒状成型燃料收账燃烧等问题,通过对国内外生物质成型燃料热风炉燃烧室成都找人公司研究和借鉴,设计了新型生物质成型燃料热风炉的燃烧室。该新型生物质热风炉的燃烧室只是热风炉的燃烧部分,需要和独立的换热器配合使用。在我国可用于生产颗粒状成型燃料的木屑很少,但拥有大量的可生产块状和棒状成型燃料的作物秸秆。

The main business of the gas hot-blast stove is gas hot-blast stove, coal-fired gas hot-blast stove and other thermal energy equipment. The gas hot-blast stove has combustion efficiency for the existing biomass briquette fuel combustion equipment at home and abroad. The combustion chamber of biomass briquette fuel hot blast stove at home and abroad was studied and used for reference, and a new type of combustion chamber of biomass briquette fuel hot blast stove was designed. The combustion chamber of the new biomass hot blast stove is only the combustion part of the hot blast stove, which needs to be used in conjunction with an independent heat exchanger. In China, there are few sawdust which can be used to produce granular briquette fuel, but there are a lot of crop straw which can produce bulk and rod briquette fuel. 燃气热风炉并且计算不同载荷下的成都找人公司本体内衬变形情况,发现成都收账公司内衬发生损坏可能性较高的区域有两处:在热风出口上部,耐火材料沿内衬圆周方向受拉、伸长,内衬较易松动,导致无法承受上方砖重;热风出口以上、燃烧室锥段下部,内衬向外扩张z明显,沿圆周方向受拉、伸长,内衬圆周方向极有可能松动或出现缝隙,这一结论与实际成都收账公司破损相符。

By calculating the deformation of the inner lining of the hot blast stove under different loads, it is found that there are two areas where the damage probability of the inner lining of the hot blast stove is higher: in the upper part of the hot blast outlet, the refractory material is stretched and elongated along the circumferential direction of the inner lining, and the inner lining is easy to loosen, resulting in the unbearability of the brick weight above the hot blast outlet and the combustion chamber. In the lower part of the cone section, the inner liner expands outward obviously, and is stretched and elongated along the circumference direction. It is very likely that the inner liner will loosen or crack in the circumference direction. This conclusion is consistent with the actual hot blast stove damage.

同时燃气热风炉建立了蓄热室格子砖二维传热数学模型,提出了z优混风量的计算方法,得到了z优混风量。随着活面积的增大,风温升高,当活面积超过临界值时,高温区向下扩展,送风期温降加快,所需z优混风量增大,风温降低。随着格孔直径的减小、导热系数的升高、比热容的减小、当单位体积风量消耗的燃气减小、CO浓度的减小、预热温度的降低、空气过剩系数的降低,z优活面积逐渐减小。另外,随着空气过剩系数的升高,z高送风温度呈先增大,后减小的趋势,存在z合适的空气过剩系数。

At the same time, the two-dimensional heat transfer mathematical model of grid brick in regenerator is established in gas hot blast stove, and the calculation method of z-optimal air mixing quantity is put forward, and the z-optimal air mixing quantity is obtained. With the increase of living area, the air temperature rises. When the living area exceeds the critical value, the high temperature zone expands downward, the temperature drop accelerates during the air supply period, and the required z-optimal air mixing volume increases, and the air temperature decreases. With the decrease of pore diameter, the increase of thermal conductivity, the decrease of specific heat capacity, the decrease of gas consumption per unit volume of air, the decrease of CO concentration, the decrease of preheating temperature and the decrease of excess air coefficient, the preferred area of Z decreases gradually. In addition, with the increase of excess air coefficient, the temperature of high Z air supply increases at first and then decreases, and there is a suitable excess air coefficient of Z.

燃气热风炉对宝钢高炉热风炉实际生产数据进行了测试与收集,在此基础上进行了热平衡计算,并对计算结果进行了对比分析。结果表明:四高炉热风炉热效率较高,处于国内先进水平,但一高炉热风炉热效率较低。主要原因是一高炉热风炉燃烧不充分,散热损失大,烟气余热回收装置利用水平较低。可采用合理的空气过剩系数或富氧燃烧方式,增强保温措施,改造或更换烟气余热回收装置,提高一高炉热风炉热效率。

The actual production data of Baosteel BF hot blast stove were tested and collected by gas hot blast stove. On this basis, the heat balance calculation was carried out, and the calculation results were compared and analyzed. The results show that the thermal efficiency of the hot blast stove of No. 4 BF is higher than that of the domestic advanced level, but the thermal efficiency of the hot blast stove of No. 4 BF is lower. The main reason is that the hot blast stove of a blast furnace has insufficient combustion, large heat loss, and low utilization level of waste heat recovery device of flue gas. Reasonable excess air coefficient or oxygen-enriched combustion mode can be adopted to enhance thermal insulation measures, and the flue gas waste heat recovery device can be reformed or replaced to improve the thermal efficiency of a blast furnace hot blast stove.