公开(公告)号：US4443234A

公开(公告)日：1984-04-17

申请号：US363419

申请日：1982-03-30

申请人： Kurt B. I. Carlsson

发明人： Kurt B. I. Carlsson

IPC分类号： B01D45/06 ,  B01D50/00 ,  B01D51/00 ,  B03C3/15 ,  B03C3/01 ,  B03C3/14

CPC分类号： B01D50/002

摘要： This invention relates to a device at a dust filter for cleaning a gas flow from dust. The dust filter consists of an electrostatic precipitator or fabric filter (bag filter) and comprises a filter chamber (10) with gas inlet (12) and gas outlet (13). At the gas inlet a precollector (30) in the form of a louvre collector (31) is located for separating coarse dust, i.e. dust with a diameter exceeding 50-75 microns. In the order to obtain good collection at the louvre collector (31), the collected dust is evacuated by means of a partial gas flow, which is passed to a dust hopper (34) and a dust discharge unit (35). According to the invention, the dust discharge unit (35) comprises a cyclone collector (36), the inlet portion (37) of which is integrated with the dust hopper (34), and the outlet portion of which or central pipe (38) is formed with a passageway (39), the mouth (40) of which is located in the filter chamber downstream the louvre collector. The cyclone collector (36) is dimensioned so that the pressure drop over the louvre collector (31) amounting dimensioned so that the pressure drop over the louvre collector (31) amounting to between 0.0015 and 0.0030 atm is sufficient to drive the partial gas flow through the cyclone collector, which may be an axial cyclone or a tangential cyclone.

摘要翻译： 本发明涉及一种用于清洁灰尘气流的防尘过滤器的装置。 防尘过滤器由静电除尘器或织物过滤器（袋式过滤器）组成，并且包括具有气体入口（12）和气体出口（13）的过滤室（10）。 在气体入口处，设置有收集器（31）形式的预收集器（30），用于分离粗粉尘，即直径超过50-75微米的灰尘。 为了在百叶收集器（31）中获得良好的收集，收集的灰尘通过部分气流被排出，该部分气流被传送到灰尘漏斗（34）和排尘单元（35）。 根据本发明，排尘单元（35）包括旋风收集器（36），其入口部分（37）与灰尘料斗（34）一体化，其出口部分或中心管（38） 形成有通道（39），其口（40）位于百叶窗收集器下游的过滤室中。 旋风收集器（36）的尺寸被设计成使得集尘器（31）上的压降的尺寸设计成使得在百叶窗收集器（31）上的压降在0.0015和0.0030atm之间的压降足以驱动部分气体流过 旋风收集器，其可以是轴向旋风分离器或切向旋风分离器。