Control systems for heavy multidrive conveyers

Journal Article · Fri Jul 01 04:00:00 EDT 1977 · Sov. Min. Sci. (Engl. Transl.); (United States)

DOI:https://doi.org/10.1007/BF02498505· OSTI ID:5603489

Nazarenko, V M

In heavy conveyer belts it is usual to take the optimum conditions of the friction pulleys and belt to be such as will effect equal, minimal reserves of tractive capacity in the driving drums. This can be achieved by redistributing the tractive forces between the drums and by regulating the tension in the belt by means of the instantaneous tractive force of the conveyer. To get optimum operation of the conveyer belt, the load on the conveyer bed must be equal to the nominal value; this can be achieved by means of an automatic dosing device in the loading unit of the conveyer with a receiving bunker of sufficient capacity, or by regulating the conveyer speed according to the load flow. A load control system must include the following subsystems: (1) an automatic dosing unit; and (2) control of the speed according to the load flow and the tension in the belt, starting with the required force. Under normal conditions only subsystem 1 operates (the conveyer speed and the tension in the belt are constant). Subsystem 2 is brought intoaction only when the fluctuations of the load flow are such that subsystem 1 cannot do its job. Speed regulation of a multidrive conveyer presents a number of problems concerning the regulation of the relations between the tractive forces of the driving drums and the tensions, and also the starting and stopping conditions. In practical conveyer design, one of the most promising measures to increase the lengths of monobar conveyers without altering their throughput is the use of distributed drives in the working branch, giving relatively uniform distribution of the tractive force among the parts of the traction unit. The theoretical principles of construction of control systems for multidrive conveyers with optimal technological parameters are given.

• Research Organization: Krivoi Rog Ore Mining Inst., Moscow, USSR
• OSTI ID: 5603489
• Journal Information: Sov. Min. Sci. (Engl. Transl.); (United States), Journal Name: Sov. Min. Sci. (Engl. Transl.); (United States) Vol. 13:4; ISSN SMNSA
• Country of Publication: United States
• Language: English

Related Subjects

01 COAL, LIGNITE, AND PEAT
013000* -- Coal
Lignite
& Peat-- Transport
Handling
& Storage
ASIA
CONTROL SYSTEMS
CONVEYORS
EQUIPMENT
EUROPE
MACHINE PARTS
MATERIALS HANDLING EQUIPMENT
MECHANICAL TRANSMISSIONS
START-UP
USSR