Belt conveyors Length

BELT CONVEYORS-INTRODUCTION

Belt conveyors are demachine that separates gold fromsigned to hold material by way of the shortest distance amongst the loading and unloading points. When essential, belt conveyors can operate continuously, with out lack of time, and therefore are equipped to handle tonnages of bulk supplies that would be much more expensive and usually impractical to handle by other indicates. This frequently avoids confusion, delays, and safety hazards of rail and motor visitors in plant and other congested regions.

Choosing the best conveyor starts with seeking in the five basic considerations: material characteristics, conveyor length and/or discharge height, TPH feed, conveyor width, and HP specifications.

 Material Characteristics

Variables include: Particle Shape, Particle Size, Moisture, Angle of Repose, Lump Size & % Fines and Weight. Characteristics normally used generally of thumb include: 100 lbs. per cubic foot density, 37 degree angle of repose and fewer than 25% of the max. 3″ lump.

Material characteristics can impact other elements of conveyor selection.

• Heavier material or large lumps may need much more HP, heavier belt, closer idler spacing and impact idlers at feed points.


• Abrasiveness may need wear liners or special rubber compositions.


• Moisture might require steeper hopper sides, wider belts, anti-buildup return idlers and special belt wipers.


• Dust content may require special discharge hoods and chutes, slower belt speeds and hood covers.


• Sharp supplies may require impact idlers, wear liners, special belt and plate feeder.


• Lightweight materials may require wider belts and fewer horsepower.

Conveyor Belt

Conveyor belt contains three elements: top coven carcass, and bottom cover.

The belt carcass carries the stress forces necessary in starting and moving the loaded belt, absorbs the impact energy of cloth loading, and supplies the required stability for proper alignment, and load support over idlers, under all operating conditions.

Because the primary function of the top's is always to protect the carcass, it has to resist the wearing results of abrasion and gouging, which vary based on the kind of material conveyed. The very best cover will normally be thicker compared to the bottom cover as the power of wear is normally at the top, or carrying side.

The belt is rated in terms of "maximum recommended operating tension" pounds per inch of width (PIW). The PIW of the fabric used in the belt is multiplied from the variety of plies in the construction of the belt to discover the total PIW rating of the belt.

 Idlers

Idler selection is dependant on the type of service, operating condition, load carried, and belt speed.

Length

Length is determined certainly one of three ways:

• Lift Height Necessary: When lift height is the determining factor, generally of thumb, an 18 degree incline is used, where 3 x height needed approximates the conveyor length required. Particle size, moisture and also other factors affect the maximum incline angle. When the material has a tendency to use a conveyable angle that is lower than 18 degrees, a longer conveyor has to be selected to get the desired lift height.


• Distance to be conveyed


• Stockpile Capacity Desired