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    我们应该如何处理供暖热风炉结焦呢?

    2018-12-02 11:42:08 无锡盛发地坪科技有限公司 阅读

    在供暖热风炉炉膛中心,燃料中的灰在这样高的温度下大多熔化为液态或呈软化状态正常情况下,随着温度的降低,灰份将从液态变为软化状态进而变成固态。如果灰还保持着软化状态就碰到受热面时,由于受到冷却而粘结在受热面上,就会形成结焦。供暖热风炉结焦不仅使渣沟受堵,不得不降负荷运行,并且若造成水冷壁全部结焦时,只有停炉进行人工清焦,造成工作效率的下降。

    In the hearth center of heating hot blast stove, ash in fuel mostly melts into liquid or softens at such high temperature. With the decrease of temperature, ash will change from liquid to softened state and then to solid state. If the ash is still softening when it meets the heating surface, it will become coking because it is cooled and bonded to the heating surface. The coking of heating hot blast stove not only blocked the slag ditch, but also had to reduce the load. If all the water wall coking was caused, only the stoppage of the stove for manual coke cleaning resulted in the decrease of work efficiency.

    那我们应该如何处理供暖热风炉结焦呢?

    So how should we deal with the coking of heating stoves?

    (1) 改变燃料灰熔点特性,掺烧不同煤种。

    (1) To change the fusing point characteristics of fuel ash and blend different kinds of coal.

    (2) 调整煤粉细度: 调整分离器挡板开度, 使煤粉细度在经济合理的范围内(R90=20~25) ,防止煤粉变粗和不均匀。

    (2) Adjust the fineness of pulverized coal: adjust the baffle opening of separator to make the fineness of pulverized coal within an economical and reasonable range (R90=20-25), to prevent the coarsening and uneven pulverized coal.

    (3) 优化配风方式, 组织合理而良好的炉内空气动力场是防止结焦的前提。 机组启动前对热风炉进行冷态空气动力场试验,通过试验找出燃烧器合理的配风方式和最佳的内、外调风挡板位置,使炉内组织起良好的空气动力工况,确保热风炉的安全、稳定、经济运行。

    (3) Optimizing the air distribution mode and organizing reasonable and good aerodynamic field in the furnace are the preconditions to prevent coking. Before the start-up of the unit, the Cold Aerodynamic Field test was carried out on the hot blast stove. Through the test, the reasonable air distribution mode of the burner and the optimum position of the inner and outer air-conditioning baffles were found out, so that the good aerodynamic conditions could be organized in the furnace and the safe, stable and economic operation of the hot blast stove could be ensured. 



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