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

2016年3月21日星期一

Three Types of Conveyor Belt Stretching

  1. Elastic stretching
    1. Happens at the time of belt conveyor system acceleration or braking deceleration;
    2.  Happens at the time when pulling stress disappears, and can almost be fully recovered.
  1. Structural stretching
    1. The possibility due to the conveyor belt fabric type is higher than that due to the textile type.
    2. In the fabrics that weaved according to traditional types, the frizzy
Yarn is easily to stretch when the belt conveyor system is loaded, certain part of this conveyor belt stretching is unable to be recovered.
  1. Permanent change in length (permanent stretching)
Mainly caused by the fundamental fabric structure stretching, unrecoverable elastic stretching or structural stretching.
For more information, please visit http://www.pkbeltconveyor.com.

2016年3月19日星期六

What’s the Developing Trend of Belt Conveyor?

Low-end products occupy a large proportion in belt conveyor industry, with the daily improvement of the technology, changes would be made in the future development of the belt conveyor manufacturer. The forthcoming belt conveyor system should contain the following 5 features:
  1. High conveying capacity and speed;
This also means high productivity and low manufacture cost in unit time.
  1. Long service time;
The abrasion between the conveyor belt and the roller is the main reason that restricts the service time of the belt conveyor. It needs further improvement in the future design.
  1. Low cost of production;
Adopting non-roller support or non-contact support is the most efficient way to lower the belt conveyor cost.
  1. Low power consumption ;
80% of the belt conveyor power is consumed in friction wastage. To reduce friction wastage, the most efficient way is adopting non-contact type belt conveyor.
  1. More intelligent.
It would be closely associated with microcomputer and intelligent operation would be reached in the future.

For more information, please visit http://www.pkbeltconveyor.com.

2016年3月2日星期三

Belt running deviation and skid processing method of belt conveyor

  • Running deviation has many reasons, according to the different reasons , we need to different treatment:
  1. Adjust the carrying idler group.
  2. Install the self-aligning roller group.
  3. Tension adjustment, tension adjustment is an important link of belt conveyor running deviation.
  4. Adjust the driving drum and redirection roller position. And the adjustment of the redirection roller driving drum is an important part of the belt running deviation adjustment.
  5. Two-way adjust deviation of belt conveyor.
  • Belt skid treatment method:
  1. Adjustable tension when the belt conveyor in skid trip to increase tension. Sometimes tensioning trip has not enough, however, belt in the permanent deformation , the belt can be cut part to and sulfide.
  2. In the use of nylon belt or EP,tension travel is longer,  when tension trip has not enough, sulfide or increase tension to solve.
  3. Heavy hammer tensioning belt conveyor belt skid can add weight to solve,  added until not skid. But should add not too much, avoid belt  bear too much unnecessary tension and reduce the service life of the belt.


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! 

2016年1月9日星期六

Do you know difference of TD75, DTII and DTIIA series belt conveyor?

Specifications of TD75, DTIIA, DTII series belt conveyors are the national standard of China belt machine, which represent three types of conveyors.During the model selection,the standard should be noticed. How to choose a proper type to save client’s cost? The following is the characteristics of the three types of conveyors:
TD75 series conveyor is the first standard belt conveyor, it can be used to convey small lump, granular, powder material, due to simple structure, low cost, easy maintenance, convenient maintenance, and large transport capacity,TD75 series belt conveyor becomes a common machine,it can be single or multi sets running to form a horizontal or inclined conveyor system.
DTII series belt conveyor is designed according to the components. The designers can design and assemble the conveyor according to the requirements of transportation, different terrain and working conditions,it has a wider use compared with TD75 type.
DTIIA series belt conveyor a heavy duty machine is mainly used to transport large density, large transport capacity and long transmission distance, conveyor selection is determined according to many parameters.

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.