| 摘要 |
<p>PURPOSE:To enable removal of fine particles by combustion in a short time in a collecting filter for fine particles even if ignition is done at an upstream end by installing fibrous molded body extending from an upstream end to a downstream in an opening hole at the inlet of a constructed body. CONSTITUTION:Waste gas contg fine particles flows in each passage at the inlet of the constructed body 1 from the inlet side 2a, passes through the wall 10 of tubular fibrous molded body 8, passes further through the inside wall 7, and flows out through an exit passage 4 t the exit side 2b. Major portion of the fine particles are collected by colliding with the wall of the molded body, the surface of the fiber 9, and the surface of the skeleton of the inside wall. When a certain amt. of the fine particles are deposited and electric current is supplied through a heater, the deposited particles are burnt in the inlet passage. Since, in this case, the heat capacity of the fibrous molded body is small, the combustion is proceeded with high combustion velocity, and the fine particles are burnt in a short time.</p> |
