Scraper conveyor

Scraper conveyor

2015年9月6日星期日

PK brand redler scraper conveyor

scraper conveyor

Typical redler scraper conveyor
scraper conveyor
Typical section view
scraper conveyor
Different chains used in a redler scraper conveyor
scraper conveyor

Different products typical conveyed in a redler scraper conveyor
  • The chain conveyor usually slides the chain along a wear resistant surface.
  • Where the chain transports the product, the chain runs directly against the base plate of the box.
  • The return part of the chain is held in place by a U-profile that is supported by a cross member that is attached to the sides of the chain conveyor box.
Upon ordering, please supply the following information
  • Transported material
  • Self weight of transported material
  • Capacity in metric tons per hour
  • Distance between in and outlet
  • Chain conveyor length
The most common option for a redler scraper conveyor is to use a T-scraper on a single chain or a crossbar on a double chains.
A redler scraper conveyor can be used to transport materials such as coal, cement, grain, flour, soy and particle board.
We deliver redler scraper conveyors of our own design, but can also offer other chain conveyors from renowned European suppliers.


2015年8月13日星期四

Test running note of Scraper conveyor (II)

This article is the continuation of previous one. PK Machinery will introduce you load testing running of scraper conveyor.

Load test running

1. Once no-load test running becomes normal , please test run with load.
2. After scraper conveyor runs with load normally, please feed the material uniformly to avoid blockage.

complete picture of scraper

3. The casing must be fully sealed to avoid the material overflowing. A grate net must be added on the inlet to avoid massive material or hard objects enter into the scraper conveyor. 
4. After material inside the scraper conveyor is discharged from the outlet completely, then stop the machine. 
5. During no-load and load test running, please make a record that includes voltage, current, power and scraper chain running speed etc. and check whether they meet the requirement of design or not. 

horizontal scraper chain conveyor2

2015年8月12日星期三

Test Running Note of Scraper Conveyors (I)

PK Machinery offers horizontal scraper conveyors and inclined scraper conveyors, the angle can range from 0 degree to 90 degrees. Scraper conveyors are widely used for transporting cement , coal, metallurgy, mining, construction material, chemical, grain etc. There are two stages of test running : no-load and load test running. Here PK Machinery will introduce it in details:
conveyor scraper


Non-load test running

1.Check if there is any remaining tool, iron casting pieces and other hard objects inside the scraper conveyor, if any , please clear up. 

2.Give enough lubrication to all the bearings, driving devices and drive chain etc. 

3.Check if all the scraper conveyor parts are intact, whether the tense of scrapers is suitable or not. 

4.After finish checking the above items, then power on and switch off several times to see if the operation is normal, if normal, run the scraper conveyor continuously.

5. In addition, the head, tail , medium parts and other main structures, workers must be sent to observe the running , if any problems, please solve it without delay.

scraper conveyor suppliers

2015年8月5日星期三

PK Machinery conveyor belt cleaning scraper systems

Henan Pingyuan Mining Machinery Co., Ltd (PK Machinery) is a Chinese based company specializing in the manufacture of advanced technology conveyor belt cleaning scraper systems.

Through Henan Pingyuan Mining Machinery Co., Ltd, we can provide cutting edge technology scraping devices that give the ultimate in belt cleaning systems. Their introduction can greatly improve on current scraping ability with a substantial increase in efficiency.

PK brand belt cleaning products are recognized worldwide for their technical excellence and engineering reliability. Now used in many countries the,Our scrapers range of scrapers and ancillary products provide the most effective system for cleaning belts today, and even tomorrow!
A Belt Cleaner that really cleans the belt!
The large expense of belt scrapers should result in clean belts and eliminate the mess of large amounts of carryback, unfortunately most don't. Eliminating carryback is easy and inexpensive to obtain. PK Machinery now offer a scraper that "really works"

Types of Belt Scrapers
Most belt scrapers are made of urethane because they are thought not to harm the belt. The Urethane is comparatively soft and will conform somewhat to the belt. There are two major problems with Urethane blades 1) they don't clean very well and 2) they have a very fast wear rate (especially on high - speed belts). The cost of replacement blades and manpower and the fact that carryback is still a problem and leaves most users dissatisfied and looking for something better. Metal bladed scrapers have been in use for over 20 years and a lot of people have had problems with earlier designs. The current designs have solved the problem of belt damage so that even the biggest Urethane scraper manufactures now offer metal bladed scrapers. Customers have found that metal blades clean better. There are three basic design types of metal bladed scrapers- "Paint Scraper" (edge facing oncoming belt), edge perpendicular to belt and edge facing away from the oncoming belt. The "Paint Scraper" design for conveyor belt cleaning works just like shaving with a razor or removing paint and wall paper.

belt scraperbelt scraperbelt scraper
STURDY AND ROBUST CONSTRUCTION
The PK Machinery Scraper was designed and manufactured with a sturdy and robust construction that is able to operate effectively in the most demanding of operating environments.

  • EASY TO MAINTAIN
  • EFFECTIVE
  • SIMPLE

The PK Machinery sprung blade scrapers offers the following special features:
  • Effective cleaning efficiency
  • Low operating costs
  • Optimum belt protection
  • Self adjusting
  • Minimal installation and maintenance
  • Extremely long operating life Highly abrasion-resistant blades for all types of materials being conveyed
  • Suitable for all belt widths and speeds
  • Excellent durability
  • Compact - low space requirements
  • Reversing operation

THE PRINCIPLE
Because the leading edge of the blade is directly above the fulcrum point, this allows the blade to deflect on a radius from the centre of the torsion unit in the direction the belt is traveling, therefore allowing the blade to let the obstruction pass without damaging the belt fastener.

EFFICIENT CLEANING
The PK Machinery Scraper design eliminates the inherent design problems of other scrapers by inclining the blade in the direction of belt travel. Blades will wear at the angle at which they approach the belt. Because of it's unique design, Our scraper blade retains it's profile throughout it's working life. This results in a highly efficient system capable of removing the last 1/10th of a mm of residual film from the belt surface.

WORKING FEATURES
  • Effectively removes on-coming material
  • No material build-up
  • On-coming material is deflected away
  • No increase in material mass
  • No deterioration of blade edge
  • No entrailment angle
  • No oscillation of the blade which reduces the risk of damage

COST EFFECTIVE DESIGN
The torsion holder assembly of the PK Machinery scraper assures a clean belt surface on the return side, and cuts down on costly material wastage, clean up costs and down time. PK Machinery scrapers are suitable for all use in all areas of carry back spillage and embody the highest quality components.

SIMPLE INSTALLATION
Supplied in pre-assembled form, PK Machinery scrapers are fixed to the conveyor structure with only 4 mounting bolts. Easily understood installation and operating instructions ensure a minimum down time - the essence of cost effective engineering. Our scraper is backed up by a team of expert technicians who are available at all times.

EXTENDED BLADE AND TORSION HOLDER LIFE
Since the PK Machinery design requires low blade pressure on the belt surface, blade life is considerably prolonged. A variety of blade types to sit customer requirements, together with H.D.P.E. deflector skirts are standard. The low sprung - weight and stability of the blade and torsion holder assembly allows for continuous scraping contact as the blades track the moving belt.

LONGER BELT LIFE
The PK Machinery cleaning action peels away the carry back material and deflects it into the main flow stream using a low scraping pressure. Less pressure - longer belt life.

THE SCRAPER SPECIFICATIONS

Model
MC 16
MC 20
MC 25
MC 32
MC 40
Chute Width (mm)
160
200
250
320
400
Transport Speed (m/s)
0.16 m/s, 0.20 m/s, 0.25 m/s, 0.32 m/s
Bulk Density (t/m3)
0.2~1.8 t/m3
Capacity (m3/h)
11~22
15~30
23~46
46~74
55~110
Conveyor Height (m)
5~30m
Installation Angle (degree)
30°, 45°, 60°, 75°, 90°




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Henan Pingyuan Mining Machinery Co., Ltd is the most professional manufacturer of Belt conveyor, andVibrating 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.

2015年7月30日星期四

Chain maintenance for Scraper Conveyor

All conveyor parts which may be subject to wear (wheels, chains, attachment, scraper bars) should be checked regularly for wear or damage. Chain contact surface are subject to normal wear, the extent of which is governed by chain quality, number of link movement, contact load and material handled. 


Wear in the contact areas reduces the chain thickness and thus has a direct relationship to service life. Ways to prolong the service life of the chain are as follow:
1.   Lubrication with lubrication oil, increases wear as it will form a grinding paste.
2.   Air and water washes or scrapers, which remove the material from the chain, drive and idling wheels reduce wear.
3.   Chain and attachments should be checked for damage following a conveyor overload.
4.   Chain replacement should always be combined with the replacement of all toothed wheels, or toothed rims, to ensure proper meshing of the chain.
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Henan Pingyuan Mining Machinery Co., Ltd is the most professional manufacturer of Belt conveyor, andVibrating 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.


For more information, pls do not hesitate to contact us via : 
Mobilephoe:+86 18338953783
Tel: +86 373 579 9198
Fax: +86 373 507 1699

Address: 289 Yellow River Road, Xinxiang City, Henan Province, China

Troubleshooting of Buried Scraper Conveyor

Trouble
Reasons
Troubleshooting
Deviation of chain scraper
1.         The whole equipment installed improperly; casing straightness is too large; wheel axle deflection; head, tail wheel misalignment.
2.         casing transmutation
3.         Tail wheel inclines after adjusting the take-up unit
1.checked the  installation quality
2.Adjusting the casing
3. readjustment
Chain scraper break
1.         Chain wear
2.         The conveyor Overloading operation result in the strength is not enough.
3.         Some hard material fallen into the closed trough and locked the scraper
1.Change chain
2.Eliminate long time overloading operation
3. After manual discharging the machine should feeding uniformly
Chain scraper bent result in break
1.         Casing are not straight
2.         The location of flange is offset then locks the scraper.
1.checked the  installation quality
2.dismantled original installation and install it again
During the operation of chain scraper, it gives out excessive noise
1.         Some hard material fallen into the closed trough
2.         Some chain with looseness or Inflexible faults
1.clear debris
2.change chain
Head wheel not fit in with chain scraper well
1.         Head wheel chain inclines; Casing misalignment
2.         The chain is wearing out after long time operation
1.rectify head wheel shaft
2.change chain


For more information, pls do not hesitate to contact us via : 
Mobilephoe:+86 18338953783
Tel: +86 373 579 9198
Fax: +86 373 507 1699

Address: 289 Yellow River Road, Xinxiang City, Henan Province, China

How to Design Buried Scraper Conveyor Scraper Chain to Minimize Trouble


 1. You should select the appropriate chain speed according to capacity and material properties, so that make the scraper chain run under reasonable load conditions. For the common material, scraper chain operating speed range is generally 0.16 ~ 0.5m / s. You can choose a specific speed reference GB GB10596.1-89 standards and practical experience in the same industry units.
Scraper Conveyor

2. You should select the appropriate structure of scraper chain on the basis of delivery materials and transporting form. The selection principles are as following: in general, preferred forging chain, greater hardness of dust-like material should not be used bush roller chain, chain prone to floating material might as well use bush roller chain and double-plate chain. To ensure maximize the carrying capacity of scraper chain and avoid waste of energy and materials, you should be guaranteed under the condition that the scraper chain can bearing the maximum working load, choose the scraper chain closest to the required load and the maximum working load.
Scraper Conveyor Manufacturer

3.  Select the chain of materials Scraper chain material must ensure a certain strength. In the long time work, insufficient rigidity will force the scraper chain produce plastically deformed scraper chain elongation, and chain in installation has been tensioned, allowed elongated room is little. This will make scraper conveyor bear a powerful additional load, which will inevitably bring damage to the chain. In other words, scraper chain stiffness shortage will make scraper chain obvious distortion in use. The ideal steel material is manufacturing performance not less than 45, scraper chain have to overcome a lot of friction, bearing a lot of dynamic load and static load, so after the scraper chain manufacturing and post-weld, it should be carried out heat treatment, make it has high strength, toughness and wear resistance characteristic.
Scraper Conveyor


For more information, pls do not hesitate to contact us via : 
Mobilephoe:+86 18338953783
Tel: +86 373 579 9198
Fax: +86 373 507 1699

Address: 289 Yellow River Road, Xinxiang City, Henan Province, China

2015年7月23日星期四

Introduction of scraper conveyor

Henan pingyuan mining machinery Co., Ltd provides three types of scraper conveyor which are horizontal scraper chain conveyor, incline scraper chain conveyor and grain scraper chain conveyor

Horizontal Scraper Chain Conveyor



Horizontal scraper chain conveyor is bulk material conveying equipment, which consists of head section with  driving device, connect section, tail section, tension device, as well as scraper and chains.By means of moving  chains, it can continuously transport the materials in closed rectangular casing horizontally or at a slight incline. MS buried scraper conveyor is widely used in cement plant, coal, metallurgy, mining, light, construction,  chemical, grain, power indusetctries .

Incline Scraper Chain Conveyor


Incline scraper chain conveyor is bulk material conveying equipment, which consist of head section with driving device, connect section, tail section, tension device, as well as scraper and chains. By means of moving chains, it can continuously transport the materials in closed rectangular casing vertically or at a large incline. The MC  buried scraper conveyor is widely used in cement plant, coal, metallurgy, mining, light, construction, chemical,  grain, power industries etc.


Grain Scraper Chain Conveyor





Grain scraper chain conveyor is a light type buried scraper conveyor. It is widely used to convey grain such as 
soybean, wheat, rice, flour etc. Compared to the ordinary type, the casing thickness of QMS type is smaller,  thus lose the whole weight and save money.

For more information, pls do not hesitate to contact us via : 
Mobilephoe:+86 18338953783
Tel: +86 373 579 9198
Fax: +86 373 507 1699

Address: 289 Yellow River Road, Xinxiang City, Henan Province, China