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Title:
DEVICE AND METHOD FOR DETECTING CONVEYANCE SOIL AND SAND AMOUNT OF BELT CONVEYOR
Document Type and Number:
Japanese Patent JP2005220633
Kind Code:
A
Abstract:

To provide a device and method for detecting a conveyance soil and sand amount of a belt conveyor for being maintained at a suitable conveying speed set in an allowable range when measuring a soil and sand amount supplied to a belt conveyor.

The device and method for detecting the conveyance soil and sand amount of the belt conveyor comprises repeatedly measuring a distance up to the surface of soil and sand conveyed on the belt 8a at a prescribed cycle with a distance sensor 16 arranged upward of the belt conveyor 8, calculating a cross section area of soil and sand passed from a difference between a distance up to the surface of soil and sand detected by the sensor 16 and a reference distance up to a belt face with a calculating means, finding the conveyance soil and sand amount per unit time by integrating to calculate a conveyance soil and sand volume per measured cycle time from the cross section area of soil and sand and the conveying speed of the belt conveyor with a conveyance soil and sand integrating means, controlling the conveying speed of the belt conveyor 8 in response to the quantity of the obtained conveyance soil and sand with a speed control means, increasing the conveying speed of the belt conveyor 8 when exceeding an upper limit setting the soil and sand amount, and decreasing the conveying speed when not exceeding a lower limit setting the soil and sand amount.


Inventors:
MIURA TADASHI
OKA TOSHIHISA
Application Number:
JP2004030199A
Publication Date:
August 18, 2005
Filing Date:
February 06, 2004
Export Citation:
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Assignee:
OHBAYASHI CORP
International Classes:
E02F7/00; B65G43/00; E21D9/12; G01B21/20; (IPC1-7): E21D9/12; B65G43/00; E02F7/00; G01B21/20
Domestic Patent References:
JPH0216296A1990-01-19
JP2002081987A2002-03-22
JPH04363500A1992-12-16
JP2002139312A2002-05-17
JPS62150638A1987-07-04
JPS62265514A1987-11-18
JPS61287615A1986-12-18
Attorney, Agent or Firm:
Isshiki International Patent Service Corporation