2013年8月15日星期四

How to improve the useful life of the conveyor belt

1 Improved conveyor hopper off. Improved drop hopper conveyor, conveyor belt is to prevent premature failure of one of effective measures. Improved transfer of the belt off at

the hopper, the capacity to increase by 2.5 times foreign, long, large foreign body in the transport process is not easy in the funnel wall and conveying the card

Belt, and reduces the probability of foreign torn belt.
Off the lead at the feed hopper skirt to match the Plastic belt conveyor running along the direction of the gap is growing, solving coal, stones stuck in between the belt and skirt the

issue, thus causing the belt to eliminate damage. Larger drop hopper baffle installed inside the buffer, to avoid material

The direct impact of material conveyor.
(2) adding at the bend pulley scraper device. Along the conveyor belt idler pulley at additional scraper device, eliminating the bend pulley bonding material at issue, address

the sticky roller conveyor local damage caused by the material.
3 delivery head, tail and intermediate reproduced at the transition improvements. Delivery head, tail and intermediate transition reproduced at length and transition, a great

impact on the service life of the conveyor belt. Subject to reasonable transition should be designed to minimize surface wear rubber conveyor belt, make sure there are no

Folding conveyor belt, the middle projection phenomenon, blanking material spill does not appear at.
4 conveyor at the transition in the concave pressure roller. Practice has proved insufficient transverse strength rope conveyor, startup, partial pressure belt pulley causing

excessive force, resulting in torn conveyor belt, change all the pinch roller pressure belt rollers, can solve this problem .
5 big machine boom conveyor counterweight load shedding. Coal yard stacker system initially life is very short conveyor boom, counterweight design overweight is caused by belt

tension is too large, an important reason for premature aging cracking. Carriage belt tension to meet the material, based on the weight reducing

After delivery of the 1.5 million t of coal extend the life of 450 million t. 200,000 t ore with the system conveyor stacker-reclaimer boom counterweight to the original design

25t (including counterweight roller weight), the original German imports tear wire with less than 3 million jobs a serious stretch t scrapped, after two times lower load

shedding

6t counterweight, the use of domestic ordinary steel band, the job amounted to over 800 million t.
6. Material flow direction adjustment. Material flow direction has an important impact on the life of the belt, the belt should make the material flow in the same direction to

run, can greatly improve the life of equipment.
7 local damage restoration techniques to extend belt life. (A) local thermal curing; that is, we often say that the heat of the need to be equipped conveyor belt vulcanizing

machine. (2) local cold splash, liquid products are Germany Dipu Te technical polymer composite restorative materials, etc., but left to be cured at room temperature 10h

Right; (3) local cold bonding, using repair section (vertical gap), T2 adhesive cold glue a longitudinal cracks fill plug (need special glue gun). Advantages of these two

methods is less manpower inputs, and has good resistance to abrasion and reinforcing properties, the recovery time is shorter, the disadvantage is the requirement for the

environment

High and can not be restored to the original flat belt surface requirements; (4) Telescopic belt conveyor spray repair techniques. The technology is several mixed liquid material by special

equipment, high pressure spray to a belt worn surface, according to need spraying certain thickness wear layer. Short curing time, for even into a film bureau

Ministry of wear, the effect is very good, the disadvantage is the need for a dedicated device.
8 reasonable choice belt type and maintenance. Reasonable choice type, depending on the season to adjust along the correction device, plus sunshield and winter maintenance

measures are also extended belt life.
9 other management issues. Strengthen management rollers and sweepers, damage must be promptly replaced. Control with load starts.

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