Standard No.:	GB/T 17119-1997
Chinese Name:	连续搬运设备 带承载托辊的带式输送机 运行功率和张力的计算
English Name:	Continuous mechanical handling equipment--Belt conveyors with carrying idlers--Calculation of operating power and tensile forces
Professional Classification:	J81 Conveying machinery
Professional Classification:	GB National Standard
ICS Classification:	53.040.10 Conveyors
Issued by:
Issued on:	1997-12-01
Implemented on:	1998-07-01
Status:	VALID
Language:	English
File Format:	PDF
Word Count:	8000 words
Price(USD):	240 (USD)
Delivery:	via email in 1-3 business day

1 Scope

This standard specifies methods for the calculation of the operating power requirements on the driving pulley of a belt conveyor, and of the tensile forces exerted on the belt. It applies to belt conveyors with carrying idlers.

2 Definitions

For the purposes of this standard, the following definitions apply.
2.1 Surcharge angle (of the material handled), θ : Angle formed with the horizontal by the tangent to the material cross-section at the intersecting point with the belt in motion (see Figure 3). The surcharge angle is expressed in degrees.
2.2 angle of repose, α: Angle formed with the horizontal
by the surface of a conical heap of material falling slowly and regularly from a small height onto a horizontal stationary surface. The angle of repose is expressed in degrees.