公开(公告)号：US06928936B1

公开(公告)日：2005-08-16

申请号：US10806066

申请日：2004-03-22

Applicant: Ashis Mukherjee ,  Subhasis Biswas ,  Manish Kumar ,  Santi Gopal Sahu ,  Nandita Choudhury ,  Ashim Choudhury ,  Kalyan Sen

Inventor： Ashis Mukherjee ,  Subhasis Biswas ,  Manish Kumar ,  Santi Gopal Sahu ,  Nandita Choudhury ,  Ashim Choudhury ,  Kalyan Sen

IPC: F23H3/00 ,  F23K3/02

CPC classification number: F23K3/02

Abstract: The present invention provides a device for feeding pulverized coal to a furnace, such as a drop tube furnace. The feeding system consists of a feed hopper, a pneumatic vibrator positioned on the periphery of the feeder hopper, a needle valve arrangement in the said feed hopper, a depth gauge micrometer, a distribution chamber with primary and secondary airline at the bottom of the said feed hopper. Adjusting the pressure of compressed air allows setting of the frequency of vibration of the pneumatic vibrator. The needle valve arrangement in conjunction with the vibratory hopper controls the feed rate. The rate of coal flow is measured by the depth gauge micrometer. The distribution chamber with primary and secondary airline at the bottom of the said feed hopper allows uniform mixing of air with coal before being charged into the furnace reactor.

Abstract translation: 本发明提供了一种用于将粉煤送入诸如滴管炉等炉的装置。 进料系统由进料斗，进料斗周边的气动振动器，所述进料斗中的针阀装置，深度计千分表组成，分配室具有位于所述进料斗底部的第一和第二航空公司 进料斗。 调节压缩空气的压力允许设定气动振动器的振动频率。 与振动漏斗配合的针阀装置控制进给速度。 煤流量由深度测微计测量。 在所述进料斗底部具有一级和二级航空公司的分配室允许空气与煤均匀混合，然后将其装入炉式反应器中。