2015年10月19日星期一

Introduction of Shuttle Conveyor

Shuttle conveyor is designed for conveying material moves along a transport direction on the steel track which is usually installed on the top of the storehouse.Reversible conveyor mainly used to discharge material constantly in multi-point when the discharging points could move.

► Advantages

    1.Multiple discharge point
    2.Discharge continuously in long distance
    3.Two way running and discharging
    4.Compact structure with low height
    5.Convenient installation and maintenance
► Application
Large capacity shuttle conveyor is mainly used for disperse and store the material, especially the materials need to discharge averagely in order to take full advantage of the space and then store more material. So it could be used in agriculture, power plant, raw material stocking, metallurgy industry, etc.

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 9198 
Fax: +86 373 507 1699  
Address: 289 Yellow River Road, Xinxiang City, Henan Province, China

2015年10月17日星期六

What Should Users Notice before Running the Motorized Drum with Anti-reverse

Recently, we received a feedback from our Thailand client that the motorized drum with anti-reverse of belt conveyor didn’t rotate, here PK Machinery will explain the notice we should note which can avoid this problem effectively:
1.After installation of the whole set belt conveyor, we should check the motorized drum carefully before commissioning, check and make sure the power supply must be identical to the one stipulated by the nameplate.
2.If the motorized drum with anti-reverse, the wires connection must rotate according to the indicated rotate direction.


motorized drum
 
 3.Check if the oil level of the drum body is satisfied before running. The methods are suggested as below:
Rotate the drum body, keep the oil outlet as high as 2/3r, see the following figure, then remove the plug and make sure the oil surface is level with the outlet.
(This is important, if without oil, the motorized drum will occurs much noise, even not rotate, and finally it will damage)

motorized drum drawing

2015年10月16日星期五

Introduction of Portable Belt Conveyor

CUSTOMER REFERENCE LIST (YEAR 2012-2014)
NO. EQUIPMENT VENDOR'S SCOPE OF SUPPLY    
    PROJECT LOCATION QUANTITY TIME
20 Portable Belt Conveyor Zambia 4 Sets 20130508
28 Portable Belt Conveyor Ethiopia 6 Sets 20131100
56 Portable Belt Conveyor Senegal 7 Sets 20150402

►Brief Introduction
      DY Portable belt conveyor is lightweight continuous conveying equipment which has the features of high efficiency, good mobility, and convenient usage.
Movable belt conveyor is divided into rise-and-fall and non rise-and-fall conveyors.

      It is a kind of machinery that can transfer the material continuously by friction drive.
      According to different transport requirements, the transport system can be single belt conveyor or consist of several conveyors or be combined with other conveying equipments.
      It can be installed horizontally or aslant to meet the needs of different production lines. 
portable belt conveyor

►Features
    1.Lightweight
    2.Two-way transporting
    3.Easy operation
    4.Widely used
    5.Easily  move

Advantages

    1.High precision, high loading capacity with hard mask gear(2 to 3 times more than soft mask gear)
    2.Long service life ( reach 10 years)
    3.Compact construction and small floor space (reduce above 50%)
    4.Light weight and small volume (reduce 50%)
    5.Specially vertical driving construction, more used in mining delivery machinery under coal mine well. 

Working Principle
Mobile belt conveyor with hopper is divided into rise-and-fall and non rise-and-fall conveyors. High quality movable belt conveyor is driven by electric pulley, rising &falling and running of whole machine are all nonmobile. universal wheel is mounted below device, makes the conveyor a flexible motion. the transport height can be adjusted to meet different operation demand.

►Application
Mobile belt conveyor is mostly applied to port, jetty, mining, warehouse, and construction site for moving bagged cargo and bulk materials.


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

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.

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29日星期二

How to troubleshoot the daily malfunction of vibrating motor?

1. after connect the power supply, motor is unable to start, please check:
(1) if power supply is lack of phase;
(2) if motor is loss of phase;
(3) if protective cover is damaged or rub eccentric block.
2. after start-up, there is big motor noise or motor heats, please check:
(1) if the contact surface roughness of vibration machine and motor foundation is in line with the installation requirements;
(2)if the anchor bolts are not tighten up ;
(3) if the vibration acceleration is in line with the requirements;


3. after the adjustment of eccentric block, amplitude changes abnormally please check:
If eccentric block on both ends of the rotor axis is symmetrical;
4. when two vibrating motors of vibration machine vibrate at the same time, if its phase does not conform to the requirements, please adjust the phase sequence of the single unit, don't adjust the total phase sequence of two vibrating motors.


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