Coal conditioning system

Presses – Reciprocating press construction – Fluid pressure actuation

Patent

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

100 74, 100144, 198339, 198607, F23K 300

Patent

active

040108570

ABSTRACT:
The output of a radioactive source is directed through a moving stream of granular material, e.g., coal on a conveyor, and the radiation passing through is sensed by a detector. The detector generates a pulse signal of which the pulse repetition rate varies with the radiation sensed. The pulses generated are counted in a binary counter, and a timer periodically initiates a read-out of and resets the counter to effect successive counting cycles, whereupon the digital count in each cycle is converted to an analog voltage, the magnitude of which is recorded in terms of bulk density of the coal. The recorder controls the addition of water or oil to the coal to, respectively, lower or increase the bulk density of the coal. Controls are included which guard the system from misperforming when a supply of coal has failed, when the depth of coal on the conveyor belt has been lost, and when the coal is so dense that an application of water is required.
The system employs a drop of the coal before it passes the source of radiation so as to simulate the drop of coal in an oven to which the coal is normally supplied, thereby to present coal for bulk density control in a condition the same as that applied to the oven. A paddle-wheel assembly may be employed for this same purpose by striking the material as it is dropped past the paddle-wheel assembly. Alternatively, a sled assembly that tamps the coal may be employed for such simulation.

REFERENCES:
patent: 1750839 (1930-03-01), Furbush
patent: 3148971 (1964-09-01), MacDonald

LandOfFree

Say what you really think

Search LandOfFree.com for the USA inventors and patents. Rate them and share your experience with other people.

Rating

Coal conditioning system does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Coal conditioning system, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Coal conditioning system will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFUS-PAI-O-1402249

  Search
All data on this website is collected from public sources. Our data reflects the most accurate information available at the time of publication.