显示标签为“mining”的博文。显示所有博文
显示标签为“mining”的博文。显示所有博文

2016年3月7日星期一

What Causes the Failure of Belt Conveyor Components and the Solution

Basically, we cannot avoid the failing in work of belt conveyor. The following several points are common phenomenon of belt conveyor components failure analyzed by PK Machinery. We hope to bring you some assistance.
  1. The belt fails in rotating;
The drive pulley belt slips and turns without moving forward after the starting of the belt conveyor motor. The belt failing in rotating is due to the insufficient belt tension, overlong of the belt, inappropriate adjustment of the tension equipment, too frequent start-up and the coal piled up at the end of the belt conveyor.
  1. Belt is easy to break ;
This problem is mainly caused by the large belt joint, poor belt buckle quality, long time use of the belt and the unprofessional belt maintenance. In this case, we should tighten the tension equipment, change high quality belt in time and improve the maintenance level.
  1. Abnormal sound from the reducer
One possible reason is that the abrasive wear of the bearing and gear causes a large gap between them. Or it is because the screw is too loose. In this case, we should replace the bearing, mend the gap and maintain or replace the reducer.
  1. Temperature of the reducer rises too fast
It is due to the over mount of lubricant, poor heat dispersion, speed reducer burying in coal. The lubricant oil amount should be reduced and the coal should be removed to solve this problem.
  1. Lubricant leakage of the reducer
The main reason includes the sealing ring is damaged, the reducer surface is not flat and the bolt is too loose. In this condition, we should change the sealing ring, tighten the connecting surface and the bearing cap bolts.
reducer-of-belt-conveyor
  1. The roller failed in rotating
If the coal powder falls into the roller sealing ring, it will block the conveyor roller and cause strong stress, then the roller would not rotate and even bend. And thus bring damage to the roller bearing. If this happened, we should replace the roller, lower the height of discharging point and the landing point, or use impact roller at the landing point.

2015年10月20日星期二

Tripper Introduction

Belt conveyor tripper is a mobile device which can unload materials at the arbitrary point of horizontal section of the conveyor; it’s a single part of the conveyor. Movable tripper can be divided into light-duty type and heavy-duty type.
 Features
    1.Durable
    2.High efficiency
    3.Simple structure
    4.Stable operation
    5.Easy to maintenance
    6.Multiple discharging points
    7.Moving freely with wheels
 
tripper

 Advantage

    1.Heavy duty structural frames and supports – to provide system rigidity
    2.Heavy duty inlet skirting – to eliminate spillage at discharge transition
    3.Abrasion resistant belting – to reduce wear and increase life span
    4.Heavy duty idlers with anti-friction bearings – to increase idler life and reduce horsepower requirements
    5.High torque drive units – to power through upset conditions 
    6.Modular design shipped with limited field assembly required for drop in, bolt in place field installation
    7.May be fitted to any new or existing conveyor
    8.Single and dual side discharge designs
    9.Evenly distribution of materials 
    10.Save storage space
    11.Powered tripper movement through cable/winch assembly or powered wheels, crowned bend pulleys for positive belt tracking 
    12.Shuttling cross conveyor belt design available with side to side movement
    13.Cross over platform/operator deck available on cross conveyor tripper
    14.Engineered to meet new project requirements and also to retrofit existing conveyors
►  Application
XLP Tripper is always used at a large belt conveyor, it applies in the occasion where the belt conveyor has a discharge requirement, such as mining, power plant, steel plant, port, etc.



Henan Pingyuan Mining Machinery Co., Ltd is the most professional manufacturer of Belt conveyor, and Vibrating screenBucket elevatorScrew conveyorScraper conveyor using the world's most advanced technology, we are willing to serve every company to meet your custom needs. our goal is "be the future global leader of mining machinery industry". have any questions, please contact us without any hesitation. 
Tel: +86 373 579 9198 
Fax: +86 373 507 1699  
Address: 289 Yellow River Road, Xinxiang City, Henan Province, China

 

2015年10月15日星期四

Failure Analysis of Belt Conveyor Components

In the process of operation, failure of belt conveyor is inevitable, here PK Machinery will analyze the cause of belt conveyor failure.
1.Belt doesn’t rotate
After start-up of the belt conveyor motor, the belt of drive pulley idles and slips, belt can’t rotate, this failure is caused by insufficient belt tension, improper adjustment of tension device, overlong length, overloading start-up, coal piled in the tail part of belt conveyor.
2. Belt is easy to break
It is due to the large belt tension loose joint, poor quality of belt buckle, belt using for a long time, poor maintenance of belt, the solution is to tighten tension device, lower the tension ,change the new belt in time and strengthen the maintenance quality.
3. Reducer occurs abnormal sound.
The reason is due to the larger gap caused by serious wear of bearing and gear or screw is too loose, the solution is to replace the bearing, adjust the gap and repair or replace the whole reducer.
4.Reducer heats up too fast.
The reason is because of too much oil, poor heat dissipation performance, speed reducer is buried in coal pile, the solution is to adjust oil amount and remove the coal.


conveyor belt driving device drawing
5.Reducer oil leakage.
The reason is due to the damage of sealing ring, the connecting surface of reducer is not uneven, the bolt is too loose, the solution is to replace the sealing ring, tighten the connecting surface and the bearing cap bolts.

reducer of belt conveyor
 
6.Roller doesn’t rotate.
It is because of the damage of roller bearing, when coal powder enters into the roller sealing ring on both sides, it will be blocked and not rotate which makes the roller bend due to the large stress. The solution is replacement roller, reduce the height of discharging point and the landing point, or use the shock-proof roller at the landing point.

scheme drawing of conveyor belt

2015年9月18日星期五

How to #select suitable #belt for #corrugated #sidewall #conveyor?

Corrugated sidewall belt is used for pulling and carrying purposes for corrugated sidewall conveyor. It consists of a baseband, corrugated sidewall and baffle. The corrugated sidewall connects with both sides of baseband while the baffle connects with both side of corrugated wall accordingly to a certain space. 1. Baseband
The baseband appearance of corrugated sidewall belt is the same with ordinary belt ,but its lateral stiffness is greater than ordinary belt. Usually corrugated sidewall belt adopts special belt as its baseband, the tensile materials (core layer) can be divided into four kinds: cotton canvas, nylon canvas, polyester canvas and steel wire.
2. Corrugated sidewall
This series of products using S-type of corrugated sidewall.
corrugated conveyor belt
3. Baffle
a) This series of product is recommended to use type T, type TS (B), type TC, type TCS (B) and type C baffles.
b) Type T and type TS (B) baffles are only suitable for conveyor angle β≤40 ° while type TC and type TCS (B) and type C of baffles are suitable for conveyors with any transmission angle.
c) Type C baffle is suitable for conveying viscous materials. On the other hand, if the conveying angle and material density are greater, then type TCS (b) baffle should be used.
d) The spacing between baffles is integral multiple of waveform of the corrugated sidewall. The spacing between baffles (TS) and height (H) are related to conveying angle β.  

PK Mining Machinery Company

Henan Pingyuan Mining Machinery Co., Ltd is the most professional manufacturer of Belt conveyor, and Vibrating screenBucket elevatorScrew conveyorScraper conveyor using the world's most advanced technology, we are willing to serve every company to meet your custom needs. our goal is "be the future global leader of mining machinery industry". have any questions, please contact us without any hesitation. 
   Tel: +86 373 579 9198d
   Fax: +86 373 507 1699  
  Address: 289 Yellow River Road, Xinxiang City, Henan Province, China