公开(公告)号：US4869737A

公开(公告)日：1989-09-26

申请号：US296236

申请日：1989-01-12

申请人： Joseph A. Parenti

发明人： Joseph A. Parenti

IPC分类号： E21F5/00 ,  B01D46/00 ,  B01D46/42 ,  B01D46/46 ,  B01D50/00 ,  B04C3/04 ,  E21F5/20 ,  F24F7/00

CPC分类号： B01D46/46 ,  B01D50/002 ,  B04C3/04 ,  E21F5/20

摘要： The apparatus includes a large-capacity main blower for drawing in air from the face of coal being mined. The main blower draws the air sequentially through a grid which deflects large pieces of coal into a refuse bin, and a main stage of centrifugal filters which separates dust and particles into a stream of dirty air while discharging the clean air back into the mine. The dirty air is routed through a secondary stage of centrifugal filters which is energized by a second blower or pressure unit, the output of which is then routed through a cloth filter stage. Only clean air is discharged into the atmosphere. An air balancing device maintains proper operating pressures in the secondary filter stage for more efficient processing of the dirty air discharge. An adjustable balancing plate maintains proper operating pressure at the collection outlets for the main and secondary filter stages. A device is also included for incorporating rock dust into the main clean air discharge using the power available at the main blower to reduce any hazard.

公开(公告)号：US4348057A

公开(公告)日：1982-09-07

申请号：US181101

申请日：1980-08-25

申请人： Joseph A. Parenti ,  Malcolm J. Charles

发明人： Joseph A. Parenti ,  Malcolm J. Charles

IPC分类号： B01D45/16 ,  B04C3/04 ,  E21C35/22 ,  E21F5/20 ,  E21C7/02 ,  B01D45/12

CPC分类号： B04C3/04 ,  B01D45/16 ,  E21C35/223 ,  E21F5/20

摘要： Dust generated in coal mining is removed by means of a blower having an exhaust fan which draws air through its intake opening from the face of the coal. The blower is provided with a first stage of closely-arranged small-diametered cylindrical-shaped individual centrifuges between its intake opening and the exhaust fan in which the dust-laden air spins as air is drawn therethrough and concentrates the dust in an annular surrounding portion which is separately drawn from the centrifuges through a conduit also evacuated by the exhaust fan. This conduit contains a sharply-reversing bend which effectively separates and discharges the dust into a collection chamber, e.g. a removable bin. A grid disposed ahead of the first stage of individual centrifuges prevents large size particles from entering the centrifuges; and a second stage of closely-arranged, similarly-operating individual centrifuges located in the conduit closer to the exhaust fan remove "fines" which were not discharged to the collection chamber. The thus cleaned air exiting from the conduit is combined by the fan with the dust-freed air drawn from the core of the individual centrifuges and is discharged to the mine return area.

摘要翻译： 通过具有排气风扇的鼓风机除去采煤中产生的灰尘，该排风扇从煤面吸入空气通过其进气口。 鼓风机在其进气口和排风扇之间设置有紧密排列的小直径圆柱形的单独离心机的第一级，其中随着空气被抽吸而使灰尘充满的空气旋转，并将灰尘集中在环形周围部分 其通过也被排气扇排出的导管从离心机分开抽取。 该导管包含一个急转弯的弯曲部，其有效地将灰尘分离和排放到收集室中，例如， 一个可拆卸的仓。 布置在单个离心机第一阶段之前的网格防止大尺寸颗粒进入离心机; 并且位于更靠近排气扇的导管中的紧密排列的类似操作的单独离心机的第二阶段除去未排放到收集室的“细粉”。 从管道排出的这样清洁的空气通过风扇与从各个离心机的核心抽出的除尘空气相结合，并排放到矿井返回区域。