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输送带的使用寿命该如何延长呢?

来源:http://www.huafengxiangsu.com 时间:2020-06-06 10:25:38 浏览次数:
1.改进输送带落料斗。改进输送带落料斗,是防止输送带早期破坏的有效措施之一。改进各带式输送机转接处的落料斗,使其通过异物的能力增大2.5倍,长、大异物在输送过程中不易卡在漏斗壁和输送带之间,降低异物撕裂输送带的概率。落料斗处的导料裙板,使其与输送带的间隙沿输送带运行方向越来越大,解决煤块、石块卡在输送带和裙板之间的问题,消除因此引起的输送带损伤。落差较大的料斗,内部安装缓冲挡板,避免物料直接冲击输送带。
1. Improve the chute of conveyor belt. Improving the hopper of conveyor belt is one of the effective measures to prevent the early damage of conveyor belt. The hopper at the transition of each belt conveyor is improved to increase its ability to pass through foreign matters by 2.5 times. Long and large foreign matters are not easy to get stuck between the funnel wall and the conveyor belt in the conveying process, so as to reduce the probability of foreign matters tearing the conveyor belt. The guide apron at the hopper makes the gap between it and the conveyor belt larger and larger along the running direction of the conveyor belt, so as to solve the problem that the coal block and stone block are stuck between the conveyor belt and the apron and eliminate the damage of the conveyor belt caused thereby. For hopper with large drop, buffer baffle shall be installed inside to avoid direct impact of materials on conveyor belt.
2.在改向滚筒处加刮料装置。在输送带沿线的改向滚筒处加设刮料装置,消除改向滚筒处物料粘结问题,解决因滚筒粘料引起的输送带局部破损。
2. Add scraping device at the reversing drum. A scraping device is added at the diversion drum along the conveyor belt to eliminate the problem of material adhesion at the diversion drum and solve the local damage of the conveyor belt caused by the roller sticking.
3.输送机头、尾及中间转载过渡处的改进。输送机头、尾及中间转载处的过渡长度及过渡方式,对输送带的使用寿命影响很大。须进行合理的过渡设计,应尽量减轻输送带胶面的磨损,确保不出现输送带的折叠、中间凸起现象,落料处不出现物料撒漏。
3. Improvement of conveyor head, tail and intermediate transfer transition. The transition length and transition mode of conveyor head, tail and middle transfer have great influence on the service life of conveyor belt. A reasonable transition design shall be carried out to minimize the abrasion of the rubber surface of the conveyor belt, so as to ensure that there is no folding and middle bulge of the conveyor belt, and there is no material leakage at the dropping place.
4.输送机在凹过渡处的压带轮。实践证实,钢绳式输送带横向强度不足,启动时,压带轮造成输送带局部受力过大,导致撕裂输送带,将压带轮全部改为压带滚筒,可彻底解决这一问题。
4. Belt pulley of conveyor at concave transition. Practice has proved that the transverse strength of the steel rope conveyor belt is insufficient. When the belt is started, the pressure pulley causes the local stress of the conveyor belt to be too large, which leads to the tearing of the conveyor belt. The problem can be completely solved by changing the pressure pulley into the pressure pulley.
5.大机臂架输送带配重减载。煤矿系统堆场堆料机臂架输送带更初使用寿命很短,配重设计过重是造成输送带张力过大,过早龟裂老化的重要原因。在满足输送带运载物料张力的基础上,减轻配重后,运送煤炭由150万t的使用寿命延长到450万t。20万t矿用系统堆取料机臂架输送带原设计配重为25t(含配重滚筒重量),原装德国进口抗撕裂钢丝带作业不到300万t就严重拉伸报废,经两次减载降低6t配重后,使用国产普通钢丝带,作业量超过800万t。
5. Load reduction of boom conveyor belt balance. The initial service life of the boom conveyor belt of the stacker in the coal mine system is very short, and the overweight of the counterweight design is an important reason for the excessive tension and premature cracking and aging of the conveyor belt. On the basis of meeting the tension of the material carried by the conveyor belt and reducing the counterweight, the service life of the transported coal is extended from 1.5 million T to 4.5 million T. The original design weight of the boom conveyor belt of the 200000 t mining system stacker reclaimer is 25t (including the weight of the counterweight drum), and the original German import tear resistant steel wire belt is severely stretched and scrapped when it is less than 3 million T. after twice load reduction and 6 t counterweight reduction, the domestic common steel wire belt is used, and the operation volume is more than 8 million T.
6.料流方向调整。料流方向对输送带的使用寿命具有重要影响,应使物料流与输送带同方向运行,可大大提高设备使用寿命。
6. Adjust the direction of material flow. The direction of material flow has an important influence on the service life of the conveyor belt. The material flow should be operated in the same direction as the conveyor belt, which can greatly improve the service life of the equipment.
7.输送带局部损伤修复技术延长使用寿命。(1)局部热硫化;(2)局部冷泼,产品有美国福世蓝(1st line)技术液体高分子复合修复材料、德国德福康等,但需常温固化10h左右;(3)局部冷粘,采用德国蒂普拓普公司修补条(纵向裂口)、冷粘胶一T2复合胶纵向填补裂缝堵(需专用胶枪)。这两种方法优点是人力物力投人较少,具有较好的耐磨损和补强性能,恢复时间较短,缺点是对环境的要求高,不能恢复到原输送带表面平整要求;(4)输送带喷涂修复技术。该技术是将几种液体材料经专用设备混合,高压喷到皮带磨损表面,根据需要喷涂一定厚度的耐磨层。固化时间短,适用于连成片的局部磨损,效果很好,缺点是需要专用设备。
7. The local damage repair technology of conveyor belt extends the service life. (1) Local hot vulcanization; (2) local cold splashing, the products include the first line technology liquid polymer composite repair material, Germany defukang, etc., but it needs to be cured at room temperature for about 10h; (3) local cold bonding, the repair strip (longitudinal crack) of Germany tippop company, cold adhesive T2 composite adhesive are used to fill the crack (special glue gun is required). The advantages of these two methods are less manpower and material investment, better wear resistance and reinforcement performance, short recovery time, high environmental requirements, unable to restore to the original conveyor surface flatness requirements; (4) conveyor belt spray repair technology. The technology is to mix several liquid materials with special equipment, spray them to the worn surface of the belt under high pressure, and spray a certain thickness of wear-resistant layer as required. The curing time is short, which is suitable for the local wear of the continuous chips. The effect is very good. The disadvantage is that special equipment is needed.
8.合理选择皮带类型与维护。合理选择类型,根据季节变化及时调整沿线纠偏装置,加防晒罩以及冬季维护等措施亦可延长输送带寿命。
8. Reasonably select belt type and maintenance. Reasonable selection of type, timely adjustment of deviation rectifying device along the line according to seasonal changes, adding sunscreen, winter maintenance and other measures can also extend the life of conveyor belt.
9.其他管理问题。加强托辊及清扫器管理,损坏要及时更换。控制带载启动。
9. Other management issues. Strengthen the management of idler and cleaner, and replace the damaged ones in time. Control on load start.

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