Martin Engineering

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+1 309 8522384 +1 800 8141553

One Martin Place
Neponset, IL 61345
United States

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Hot Splicing Problem

Forum Mechanical Feeding and Conveying Trough Belt Conveying

Started by Gary Blenkhorn
Aug 12., 2003 14:10
7624 Views, 8 Replies

We are experiencing top cover vulcanized splicing problems with a plybelt. The belt is a 2 ply 660 fabric with 3/16x3/32 covers and has 8 hot vulcanized splices and 5 of these have a deteriorating top cover after only 4 months. The conveyor is a 42" belt, 2300 feet c/c, 64 foot lift, 1500 TPH of rock salt in an underground mine, ambient temperature is 68-70 F year round. There is a belt scraper on the head pulley, the scraper was checked for proper tension by the scraper manufacturer. I have heard different splice technicians say that the salt does something to the splice kit rubber during [read more]

Last post by Larry J. Goldbeck
Aug 18., 2003 13:52

Gary, a couple of things to check (may sound elementary) would be the direction of the splice, the pulley diameters used in the system and the trough angle. !. The splice direction should be layored so belt cleaning devices have a tendency to skim over the splice joint rather than digging into the splice. 2. All pulley diameters should be of sufficient size to prevent the belt from being bent too sharply. This can put undue stress on the splice and cause failure. 3. The maximum trough angle of the belt should be verified and compared with the actual trough angle being used. Bending the belt [read more]

Tags: show, rock, rock crusher, vulcanized, vulcanising, pulley, fabric, catalysts, belt, conveyors, tension, temperature, lift, conveyor, problem, materials, chemical, splice, underground, salt, distributors, problems, contamination, splicing, scraper, manufacturer
Belt Damage at Transfers

Forum Mechanical Feeding and Conveying Trough Belt Conveying

Started by 0
Dec 18., 2002 03:57
4101 Views, 3 Replies

Are there any people out there who have any success experiences with the research of impingement loading on the steel-cord conveyor belt and mechanics analysis of the belt when it is teared .Any and all suggestions will be welcome. If someone knows the information or papers about it ,please tell me where I can find it or e-mail to me! Thank [read more]

Last post by Larry J. Goldbeck
Feb 20., 2003 01:50

Joe, The Foundations III book has some excellent info on transfer point belt damage. (and other belt conditions as well) Please contact Gini at 1-800-933-4294 ext 429 for pricing and delivery Larry Goldbeck Manager Conveyor Technology Martin [read more]

Tags: steel, rock, research, rock crusher, information, rubber conveyor belt, rubber conveyor belts, elibrary, iron ore, conveyor belt, design, belt, loading, feeder, conveyor, crusher, flow, pressure, chile, belts, iron, south, africa, copper, conveyor belts, articles
Impact Idlers vs. Impact Bars

Forum Mechanical Feeding and Conveying Trough Belt Conveying

Started by Andrew Butterworth
Nov 12., 2001 23:50
20060 Views, 25 Replies

Our company has installed a 60 inch Metalcord belt underground in an extremely high impact situation. Ore of over 14 inches is dropping over 10 ft onto the belt and a special impact bed. After 2 years the impact bed is beaten up to the point that is not giving any shock absorption but merely pinching the belt. Sharp material has punctured the belt causing about 2 inch slits in various places, some of which have pendtrated through the belt. The transverse cords in the belt are 4mm apart so the impact absorption and ripping has been excellelnt. The customer has been told to consider garland [read more]

Last post by Larry J. Goldbeck
Feb 20., 2003 01:30

This sounds like a severe application. If the original support bars lasted 2 years this may be the best solution. You may want to simply install new replacement bars. There are also extra heavy duty impact systems on the market that would increase the life of the impact system. [read more]

Tags: idler, problem, skirt, rock crusher, bearings, rollers, lumps, roller bearings, diameter, australia, spherical roller bearings, information, spherical, idlers, suspension, hose, consultants, system, steel, belt, stretch, feeder, conveyor, bed, apron feeder, drop, material, feeding, waste, plastic, chute, technology, problems, manganese, ore, fines, shock, conveyor system, corporate

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