公开(公告)号：US4348968A

公开(公告)日：1982-09-14

申请号：US173522

申请日：1980-07-30

Applicant: Viking V. Demar

Inventor： Viking V. Demar

IPC: F23B99/00 ,  F23B30/06 ,  F23B30/08 ,  F23B40/00 ,  F23K3/08 ,  F23B7/00

CPC classification number: F23K3/08 ,  F23B1/16 ,  F23B5/00

Abstract: Solid fuel such as coal is fed into an inlet shaft of the furnace through a rotary feeder constructed to prevent the admission of air. Primary air channels supply the major part of the air required for combustion of the fuel in a region in which the fuel bed is sufficiently thick to avoid disturbance and the formation of "holes" by this air. Further, narrower air channels supply sufficient, diffused and low velocity air to complete the combustion of the fuel without substantial entrainment of grit and ash. Air is prevented from flowing in contact with the fuel up stream of the primary channels and the metering edge.

Abstract translation: 诸如煤的固体燃料通过构造成防止空气进入的旋转进料器供给到炉的入口轴。 主要空气通道在燃料床足够厚的区域中提供燃料燃烧所需的大部分空气，以避免干扰和由该空气形成“空穴”。 此外，较窄的空气通道提供足够的，扩散的和低速的空气来完成燃料的燃烧，而不会大量夹带砂砾和灰分。 防止空气与主通道和测量边缘的燃料上流接触。