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Young Planting

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How Can We Help

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②结构特点

2.    结构特点 

2.1.    结构一、导流罩与导流衬板 导流罩内部设置导流衬板,通过集流设计高效接收并集中上输送带散落的料流。物料颗粒在导流衬板的约束下,以有序流动形式进入曲线落料管,且物料流动方向与导流衬板的夹角控制在30°以内。该设计可显著降低料流对导流衬板及落料管的冲击能量,有效避免堵料现象,同时降低物料对导流衬板、落料管的的磨损,提高其使用寿命2.3倍。

2.2.    结构二、曲线落料管

落料管采用曲线形式,可控制物料流动轨迹与速度分布,使下端倾角与出口速度匹配,实现以下目标:

①冲击与粉尘抑制:曲线轨迹延长下落时间,利用管壁摩擦耗散物料动能(基于能量守恒原理),垂直冲击力降低60%(DEM仿真数据);

②出口处物料水平速度分量与受料带速度差控制在≤5%,减少出口处因气流剪切作用产生扬尘;

③防堵料设计:管路倾角大于物料安息角,确保“收敛式流动”,避免颗粒间架拱。

2.3.    结构三、密封导料槽 采用耐高温、耐磨、耐候的微孔可控透气弹性密封复合材料,其微孔结构允许空气流通但拦截粉尘颗粒。该设计通过平衡导料槽内外气压,抑制高速气流形成,降低内部气流速度,从而加速粉尘重力沉降,同时弹性材料适应皮带横向位移,避免密封失效。

2.4.    结构四、扩容区及阻尼挡帘 含尘气流在经过扩容区时流动速度降低,触发湍流,阻尼挡帘采用柔性帘片,迫使气流方向突变,增强局部涡流强度,含尘气流中,大颗粒发生惯性碰撞聚并并沉降,小颗粒在涡流离心力作用下向壁面迁移,最终因壁面沉积及重力作用落回受料皮带。

2.5.    结构五、回流管 连通落料管(低压区)与导料槽扩容区(高压区)。物料下落时,落料管内气流速度高导致低压,扩容区因截面积增大、气流速度骤降形成高压。两者压差驱动含尘气流通过回流管从扩容区返回落料管。回流气流与落料管内气流相遇后,气流湍流强度增大,促使粉尘颗粒通过惯性碰撞、静电作用聚并成较大颗粒,随后在重力作用下脱离气流沉降,最终实现抑尘。

 

 

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Wind Energy

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Recycling

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Saving Forests

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Water Refining

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