Title:
METHOD FOR DETECTING ABNORMALITY OF WEIGHING MACHINE OF RAW MATERIAL WEIGHING HOPPER
Document Type and Number:
Japanese Patent JPS63241315
Kind Code:
A
Abstract:
PURPOSE:To detect the abnormality of the weighing machine of a raw material weighing hopper, by detecting the time, before the weighing value of the weighing machine of the raw material weighing hopper having a raw material charged therein reaching the first set value reaches the second set value, each time when the raw material is charged to store the same. CONSTITUTION:During a raw material charging section wherein the charging speed of a raw material to a raw material weighing hopper 5 or 6 is stable, LI or LII is set to a weighing time measuring apparatus as the first set value between the min. weighing value weighed by a weighing machine I or II and the max. weighing value weighed thereby and, further, for example, HI or HII is set to said measuring apparatus as the second set value. Then, the times TI, TII before the weighing values measured by the weighing machines I, II reaching the first set values LI, LII set at every weighing machines I, II reach the second set values HI, HII are measured to be stored in a computer. The inspection of the significant difference between the weighing machines is performed on the basis of the above-mentioned times and set values to detect the abnormality of the weighing machines of the raw material weighing hoppers.
Inventors:
MAEKAWA NORIYUKI
Application Number:
JP7412387A
Publication Date:
October 06, 1988
Filing Date:
March 30, 1987
Export Citation:
Assignee:
NIPPON STEEL CORP
International Classes:
G01G13/00; (IPC1-7): G01G13/00
Attorney, Agent or Firm:
Seiichi Kosara