Title:
QUANTITATIVE EXCAVATION CONTROL METHOD FOR CONTINUOUS UNLOADER
Document Type and Number:
Japanese Patent JP3546280
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To hold a hopper level to the specified quantity by dividing set cargo handling weight by the product of conveying speed of a belt feeder and opening area of a delivery port of a hopper to compute the actual bulk specific gravity of load, and controlling the accumulating quantity of the hopper on the basis of the actual bulk specific gravity.
SOLUTION: A feeder measure VF a feeder speed sensor 48 for detecting the carry-out speed of a belt feeder is supplied to an actual bulk specific gravity computing part 51. The moving average of n-number part to bulk specific gravity obtained from the inputted feeder measure VF[m/h], preset opening area A[m2] of a delivery port of a hopper, and set cargo handling weight Q* [T/h] set according to conveying capacity of a ground side conveyor is computed on the basis of YR=1/n× Q*/VF×AA, and supplied as actual bulk specific gravity YR[T/m] to a crossfeed measure control circuit 54. The crossfeed measure control circuit 54 makes the rotating speed and crossfeed speed of a sprocket and an excavating part coincide with the reference measure based on the actual bulk specific gravity YR.
Inventors:
Kazuo Hosomi
Jie Ida
Hiroaki Ishikawa
Masamichi Okami
Jie Ida
Hiroaki Ishikawa
Masamichi Okami
Application Number:
JP13646896A
Publication Date:
July 21, 2004
Filing Date:
May 30, 1996
Export Citation:
Assignee:
jfe Steel Corporation
International Classes:
B65G65/06; B65G67/60; (IPC1-7): B65G67/60; B65G65/06
Domestic Patent References:
| JP8127432A | ||||
| JP7304511A | ||||
| JP7113681A | ||||
| JP63182716A | ||||
| JP62211517A |
Attorney, Agent or Firm:
Tetsuya Mori
Yoshiaki Naito
Cui Shu Tetsu
Yoshiaki Naito
Cui Shu Tetsu