I want to measure/weigh coal entering a coal fired grate boiler. The boiler used a LEA COAL METER which has been obsolete for years. What similar method can i use to measure the coal?

Does anyone know the principle of operation of the LEA COAL METER? I am stuck.

 

Somewhere in this quaint old document is a mention of LEA Coal Meter

http://www.sasta.co.za/wp-content/uploads/Proceedings/1930s/1938_Wilson_Results Obtained From Thermal.pdf (original, now a bad link)

https://sasta.co.za/congress-proceedings/#14-1930-1939-p2
click on the Congress Proceedings: 1930-1939 link,
then search by title: 1938_Wilson_Results Obtained From Thermal

I have no idea how they work
Do they measure Quantity or Quality?

Roy

 

The flow meter measured quantity. Might have been an impact flow meter
much like the one listed below.

tinyurl.com/2nxh4utj

Rob Barrese
ArcelorMittal

 

Surface mining and deep underground mining are the two basic methods of mining. The choice of mining method depends primarily on depth, density, overburden, and thickness of the coal seam; seams relatively close to the surface, at depths less than approximately 55 m (180 ft), are usually surface mined.

 

Weigh-belt feeders are commonly used. They are still used

 

Early 20th century advertisements for LEA coal flow meters