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1.发明授权Dust control and flow control testing device and method of reducing airborne dust and increasing flow of bulk materials 失效防尘，流量控制试验装置及减少空气中灰尘和增加散装物料流动的方法公开(公告)号：US08274038B2
公开(公告)日：2012-09-25
申请号：US12637094
申请日：2009-12-14
CPC分类号： G01N15/06 , G01N2015/0096
摘要： A method for determining quantity and/or a type of dust control agent for controlling dust of a bulk material or flowability thereof comprises dispensing a bulk material into an agitator and agitating the bulk material in the agitator to create airborne dust from the bulk material. A test method for determining a quantity and/or a type of dust control agent effective for reducing a quantity of airborne dust that separates from a bulk material during handling comprises: 1) dispensing a dust-containing bulk material into an agitator; 2) agitating the bulk material in the agitator to a degree sufficient to produce airborne dust from the bulk material; and 3) measuring a quantity of airborne dust produced from the bulk material; repeating steps 1), 2) and 3) after applying a particular dust control agent to said bulk material; and comparing the quantity of airborne dust that separates from the bulk material with and without the dust control agent.
摘要翻译： 用于确定用于控制散装材料的粉尘的粉尘控制剂的数量和/或类型的方法或其流动性的方法包括将散装材料分配到搅拌器中并搅拌搅拌器中的散装材料以从散装材料产生空气中的灰尘。 一种用于确定在处理过程中有效减少与散装材料分离的气载粉尘的量的粉尘控制剂的数量和/或类型的试验方法，包括：1）将含灰尘的散装材料分配到搅拌器中; 2）将搅拌器中的散装材料搅拌到足以产生散装材料中的空气中的粉尘的程度; 3）测量散装材料产生的气载粉尘的数量; 在将特定的粉尘控制剂施加到所述散装材料之后，重复步骤1），2）和3） 并比较与散装材料分离的空气中粉尘与有无粉尘控制剂的量。
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公开(公告)号：US20110140012A1
公开(公告)日：2011-06-16
申请号：US12637094
申请日：2009-12-14
IPC分类号： G01N21/85
CPC分类号： G01N15/06 , G01N2015/0096
摘要： A method for determining quantity and/or a type of dust control agent for controlling dust of a bulk material or flowability thereof comprises dispensing a bulk material into an agitator and agitating the bulk material in the agitator to create airborne dust from the bulk material. A test method for determining a quantity and/or a type of dust control agent effective for reducing a quantity of airborne dust that separates from a bulk material during handling comprises: 1) dispensing a dust-containing bulk material into an agitator; 2) agitating the bulk material in the agitator to a degree sufficient to produce airborne dust from the bulk material; and 3) measuring a quantity of airborne dust produced from the bulk material; repeating steps 1), 2) and 3) after applying a particular dust control agent to said bulk material; and comparing the quantity of airborne dust that separates from the bulk material with and without the dust control agent. The dust control and/or flow control agents described herein also eliminate or minimize pluggage of the testing apparatus. In a preferred embodiment, an airborne dust concentration monitor is also used to measure the airborne dust concentration of the bulk material. Also disclosed is a method for determining a quantity and/or a type of flow control agent for increasing flow of a bulk material comprising: 1) dispensing a known quantity of a bulk material into a hopper disposed above a downwardly inclined vibrating ramp; 2) measuring the time required for said known quantity of said bulk material to traverse the vibrating ramp; 3) repeating steps 1) and 2) after applying a quantity of a particular flow control agent to said bulk material; 4) comparing the times from steps 2) and 3) to determine if the quantity and type of flow control agent has increased the flow rate of said bulk material; 5) and optionally repeating steps 2), 3), and 4) using a different quantity or type of flow control agent to find a quantity or type of flow control agent that further increases the flow rate of said bulk material.
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