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显示标签为“reduced maintenance”的博文。显示所有博文

2016年3月12日星期六

Step Analysis for the Installation Process of Belt Conveyor

There are seven steps in the installation process of belt conveyors, here are some tips analyzed by experts from PK machinery.

1 .Installation of the belt conveyor landing leg and intermediate frame
Please confirm the Centerline by using the theodolite before installation, then according to the centerline to find pile point location of each landing leg. If there is embedded iron, adjustment should be made according to the location of the embedded iron in order to facilitate the installation, each landing leg should be firmly welded with the embedded iron.
2 .Installation of the counterweight device
In this process we need to ensure the parallelism between the two force columns, and meanwhile ensure its verticality. Considering the safety, protective railings shall be immediately installed after finishing the installation of this device.
3 .Installation of the headstock, tailstock and drive device base
Firstly we should verify the install elevation and confirm the centerline. Then pay attention to the sizing block location and its number not more than 5 blocks. The thinner sizing block should be placed among the thicker ones and be firmly welded.
4 .Installation of the roller and carrier roller
Before the installation, we should check the rotary condition of the bearing and repair or change it in time if there is any problems in the rotating.
5 .The Unit Installation
The unit axis deviation is 0.02 mm; the radial error of coupling is 0.05 mm, the Clearance between the half couplings is 3 ~ 5 mm. the levelness and usage of the sizing block should also meet the specification requirements.
6 .The belt installation
The belt installation should be operated by the manufacture or the professional.
7. Oil the belt conveyor and make debugging
If your want to view more,please click: www.pkbeltconveyor.com

2016年3月3日星期四

Why will Belt Conveyor Pulley Wear?

Belt conveyor is a kind of common conveyor equipment, often used in a variety of material transportation with large throughput, stable performance. In the process of using, pulley may occur wearing, this phenomenon is caused by two reasons:
One reason is that the design gap between roller bracket and pulley is too small, at the same time, building foundation hole vertical distance is less than the pulley support distance.In the process of belt running, overlarge belt tension will result in the change of its traction.Return accretion has not been cleared up, which will form accumulation debris and occur rubber friction.For design factors,as the space between pulley stents and pulley is too small, and the base hole of the vertical distance is less than the pulley support distance, it is not easy to handle timely, which is the main cause of pulley rubber lining wear.
Work environment factor is the second reason leads to rubber lining equipment damage phenomenon.

2016年2月19日星期五

Ways to Maximize the Performance of Belt Conveyor

During application of belt conveyor, it is beneficial to reduce operating resistance by using high precision conveyor rollers and high performance belt. Revolving resistance of rollers and forward resistance of belt conveyor account for 50% main resistance in belt conveyor. If the belt conveyor length is more than 80m, main resistance will be influenced by device condition, friction coefficient related to real working condition, conveyor length, rotating quality in unit length of roller, belt quality, material property, etc.
Apart from above mentioned influential factor, we can refer to the following ways to maximize the performance of belt conveyor:
1.Reduce or adjust belt deviation;
2.Add lubricating oil to components of belt conveyor;
3.Clean up the sundries produced in transportation promptly;
4.Tension force of belt conveyor should be adjusted the best status;
5.Please add oil to conveyor pulley at fixed period to ensure smooth rotation;
6.It’s better to adopt vulcanized joint, though it costs too much money, it can keep a longer service life(especially suitable for fix belt conveyor).

2016年2月18日星期四

How to Select Belt Conveyor Pulley?

You need to provide following parameters before you purchase belt conveyor pulley.
1.Diameter of pulley wall(not include rubber thickness):_________mm.
2.Length of pulley wall:___________mm.
3.Diameter of pulley Shaft:_________mm.
4.Length of pulley Shaft:___________mm.
5.Material of Pulley wall:______________.
6.Material of Pulley shaft:_____________.
7.Bearing brand:_____________.
8.Keyless Locking Devices brand:____________.
9.Surface treatment:______________(coating rubber/galvanized/other)
(1)If coating rubber,thickness of rubber:__________mm
(2)Rubber type:____________(herringbone/rhombus/other)
10.Pulley type:_________(ordinary pulley or motorized pulley)

If motorized pulley,please confirm following information:
(1)Motor installation type:______________(exterior installation or interior installation)
(2)Motor Power:_________Kw.
(3)Motor Voltage:3 phase ______V______Hz.

Besides,in order to ensure conveyor pulley to meet your needs,please confirm the conveyor information:
1.Handling Capacity:________t/h.
2.Belt speed:__________m/s.
3.Driven device Power:_____________kw.
It’s better that if you can provide pulley drawings! 

2015年10月15日星期四

Introduction of Sidewall Belt Conveyor

CUSTOMER REFERENCE LIST (YEAR 2012-2014)
NO.  EQUIPMENT  VENDOR'S SCOPE OF SUPPLY  QUANTITY  TIME
PROJECT LOCATION
14 Sidewall Belt Conveyor Bangladesh 1 Set 20121024


►Brief Introduction
Sidewall belt conveyor is continuous transporting equipment of loose bulk materials such as coke, coal, limestone, sand and gravel. It adopts high quality conveyor belt with corrugated sidewall and horizontal baffle. Sidewall belts are used to convey material up inclines. The sidewall increases the carrying capacity of the belt and prevents product from falling off the edges of the belt. Hot vulcanization provides a 5x greater adhesion between the belt and sidewall, eliminating the need for bolting the sidewall to the base belt. Greater adhesion also prevents the sidewall from lifting and separating from the base belt, extending the belt life.

►Features
   1.Long service life
   2.Reduced maintenance
   3.Low power consumption
   4.Reduced number of transfer points
   5.Quick installation and quiet running

►Advantages
   1.Flexible transportation – can convey all kinds of bulk materials such as coal, ore, sand, fertilizer and grain in horizontal, oblique, vertical or other angle directions. 
   2.High tensile strength
   3.Increases belt capacity
   4.No spillage with steep angle conveying
   5.Decrease necessary conveyor footprint
   6.No transfer points- the belt are capable of turning at any angle right from feed hopper to discharge point
   7.Maximum utilization of space – able to convey material at angles up to 90 degree
   8.Decrease maintenance costs with fewer drive units and components
   9.Long lifespan
   10.Low power requirement – requiring low power to move loaded belts
   11.Quiet smooth running – as belt runs on rotating idlers, low resistance is achieved that in turn ensures quieter operations

►Application
   1.Coal and wood-chip fired power stations
   2.underground mining (coal and ore)
   3.Shaft conveying for tunnelling and underground mining
   4.Steel industry
   5.Ship loading and unloading, ship to ship loading
   6.Sand preparation in foundry plants
   7.Silo feeding
   8.Slope conveying in openpit mining
   9.Waste recycling, soil purification and water treatment
   10.Handling of large material flows in the horizontal path

►Working Principles
The horizontal loading section a deflection wheel bends the belt into the feeding of the bulk material takes place on a mostly horizontal feed path, where the side wall belt is supported by loading impact idlers. The feeding of the conveyed material can be achieved by direct feeding from a hopper, over a chute, a feeding belt or a feeding pulley. The selection of the optimum feeding station depends on the properties of the bulk material and the belt speed of the vertical conveyor. The upward and downward strands are encased from the bottom to the top. Substructures or support rollers are not necessary in this section.
The vertical section leads over a deflection curve into the horizontal discharge section. The deflection curve is made up of a number of high specification pulleys. These pulleys experience the vectored load of deflecting the belt tension from vertical to horizontal. 
At the drive pulley, the bulk material is discharged and the belt is returned to the back going strand. Depending on the bulk material properties, the drive pulley is followed by a beater wheel for belt cleaning in the return side. The beater is self-driven. Material that fails from the belt goes into the main delivery chute. Lateral deflection wheels turn the belt from the horizontal back to the vertical.

►Selection condition
1. What is the conveying material and its physical characteristics? such as bulk density, feeding size, temperature, mositure content etc.
2. What is the processing capacity of the conveyor?
3. What is the inclination angle of the conveyor?
4. What is the lifting height (distance between inlet and outlet)?
5. What is the length of horizontal section?

►Maintenance
    1.Idlers: These must rotate freely, and be free from any material build-up. Lubrication of all moving parts on a planned basis is essential for dependable operation and minimum maintenance. Component life will be extended by following the manufacturer lubrication instructions.
    2.Pulleys: These should be free from any material build-up. The lagging on the drive pulley should be inspected on a regular basis. If the lagging is in poor condition it may be necessary to apply more tension than is normally necessary to drive the belt resulting in premature wear.
    3.Deflection Gear: Again, these must be free to rotate freely.
    4.Feed Hopper: It is important that this is just free from the top of Sidewalls, any rubber seals around the hopper need checking for wear to prevent excessive dust or spillage.
    5.Tracking: The belt should run without touching any side members or deflection gear, please refer to the section on belt tracking if the belt is running out of alignment.
    6.Good housekeeping: This is necessary for continuous operation and low maintenance. Spillage and build-up of material can eventually cause the idlers to stop rotating and an accumulation of lumpy material can cause belt damage.

Check: The belt edges, Sidewalls, Cleats and the belt splice need to be checked on a periodic basis for wear or separation. Any minor areas of damage should be repaired as soon as is possible.