How do the belt conveyor buffer bed function?

How do the belt conveyor buffer bed function?

Buffer Bed is mainly used for vibration damping protection of conveyor belt at material discharging point. When the material fall down, buffer bed uses its own elasticity to minimize the impact force when material falls down on the belt to ensure normal operation of belt conveyor. In addition, the buffer strip of bed surface consist of five million ultra high molecular polyethylene plates,which contacts the belt surface well to reduce the friction coefficient to the minimum.Here PK Machinery introduce the main characters and features of belt conveyor buffer bed.
Characters 
1.The smooth UHMW PE surface reduces friction coefficient of conveyor belt and impact strip to minimum.Thick polyethylene layer is more widely used and durable.
2.The front and back of polyethylene surface form into a curved surface, thus ensuring the smooth passing by of the conveyor belt.
3. The excellent performance of the special rubber layer can effectively absorb the momentum when material falling down.
4. Each part of buffer strip is combined with hot vulcanization, compact and firm.

Belt Conveyor Buffer Bed

 

Features:
1. No moving components, low daily maintenance cost.
2. Even bearing force, large supporting area, small belt sagging, damage and materials dropping.
3. Strong absorption of impact energy.
4. Suitable for all kinds of belt width and angle.
5. It can withstand strong impact.
6. Quick and easy installation, easy to check and replace.
7. It can be installed at the conveyor belt blanking point.
8. Prolong the belt life.

Belt Conveyor Buffer Bed

How much knowledge do you know about belt conveyor magnetic separator?

When customers purchase belt conveyor, they only provide conveying material name, but seldom mention whether the material contains other impurities or not.For example, if long and big iron contained in the material, it will be easy to scratch the conveyor belt, so magnetic separator plays an important role.In this article,we will introduce the magnetic separator as follows:
Magnetic separator is applicable to various fields deironing, which can realize continuous iron absorption and removal.
Please pay attention to the conveyor belt, bandwidth, dip angle, material properties, moisture, material thickness an iron content percentage, the nature of the magnetic material, as well as the deironing requirements and the environment condition to select a suitable magnetic separator.
Magnetic separator can remove the ferromagnetic impurities which are mixed in material, to ensure the safe and normal transmission system work of the crusher, grinding machine and other mechanical equipment,at the same time it can effectively prevent belt scratch caused by the large, long iron besides,the grade of raw materials can be significantly improved.

What Application of Sidewall Belt Conveyor in Thermal Power Plant?

1.Requirements for Belt Conveyor
Sidewall belt conveyor is the main equipment to transport coal and lime-ash in thermal power plant. Therefore it has the high security requirements. In general, the whole transit line is equipped with twin channel sidewall belt conveyor, one is put into use, another is as standby application device. Thus, this coal handling system must be equipped with sidewall belt conveyor with 2500m-3000m length. Applying sidewall belt conveyor to thermal powder plant, it can not only simplify procedure, but also save cost.
2.Features of Belt Conveyor in Power Plant
Due to power plant has high requirements for the security of equipment, technical requirements of sidewall belt conveyor are as follows:
1) It has different requirements for belt conveyor when it used to receive, convey or discharge materials. For instance, if the belt conveyor is used to receive materials, the belt speed of it shouldn’t be too high. If it is used to convey materials, it requires that trough angle of idler decrease properly. If plow discharger is put into use, the cover rubber of belt surface should be thicken properly. 
2)The belt speed should be low. Belt conveyor is mostly arranged in workshop, so it has high requirements for coal dust control. According to domestic and foreign practical experience, it’s better to adopt lower speed.
3)After installation of this machine, it seldom changes its layout.
4)Different coal type has different requirements for belt conveyor. For example, large coal particle size needs impact idler with high quality. Coal with less water and more dust needs guide chute with good sealing. 

sidewall belt conveyor

How to Solve the Problem of deviation of belt conveyor

Belt deviation of belt conveyor is the most common troubles in operation. Key points to solve the problem are ensuring the precious size in installation and regular maintenance. As various reasons of deviation, we need to solve problems distinctively.

1. Adjust carrying idler group. When belt in middle section is deviation, can adjust the place of carrying idler group. The concrete way is that forward idler group to the side belt biased while other side backward. Move the lower part of idler left when belt running deviation upward when upper part downward.

2. Install spherical idler group. There are many types of spherical idler, such as intermediate shaft type, four link type, vertical roller type, etc. It is reasonable to install spherical idler for shorter belt or two-way running belt conveyor because shorter belt conveyor is easy deviation and uneasy to adjust. However, longer belt conveyor may as well not use this way as spherical idler may effect the service life of belt.

3. Adjust the positions of driving roller and bend roller. If belt is running deviation to the right side of driving roller, move bearing at right side forward. And same to the left side. Adjustment method of bend roller is opposite with driving roller. Adjust repeatedly to the ideal position and may well as install accurately before adjust the rollers.

4. Adjust take-up unit. Take-up unit adjustment is the very important part of deviation adjustment of belt conveyor. Two bend rollers at the upper side of heavy hammer take-up should perpendicular to belt length direction and vertical gravity to ensure its shaft center line horizontal. When use screw take-up or hydrocylinder take-up, two bearings of take-up roller should translate at the same time to ensure roller axis is vertical with longitudinal direction of belt conveyor.

What is the Requirement for Belt Conveyor Restart-up?

When the belt conveyor stops , restart-up belongs to overload start. Thus it requires belt conveyor equipped with a frequency converter in order to overload start. Here PK Machinery will summarize the requirement of belt conveyor restart-up.

Belt conveyor in the pick-up for overloading startup, motor output torque, which every support to overcome below the belt between the wheel and the roller shaft caused by static friction torque, also want to overcome the material on the belt tension caused by the downward drag torque.

coal belt conveyor

Materials on the belt tension caused by the downward drag torque is constant.But the static friction force is much larger than the dynamic friction, making it in order to overcome the initial startup of the static friction torque than the normal run-time dynamic friction torque caused by the much larger.

The inverter must have the function of the large starting torque at low speed.Actually in the process of starting, as a result of the belt scale, each wheel is time order one by one according to the rotation, will not rotate at the same time.Even if the wheel rolling, because of low speed between roller and roller shaft lubrication is not good, will be very acerbity, the dynamic friction is unstable, so low starting torque has the certain fluctuation.

fixed belt conveyor

So this kind of big starting torque at low speed is the need to maintain a certain period of time, usually at least a few seconds.The length of the belt and the minimum speed startup, and scalability of the belt.Because of the low speed, and startup torque and speed fluctuation will be big.
Further more information, welcome to contact us: www.pkmachinery.com

How the Fixed Belt Conveyor Roller Classify?

Roller is used to support the conveyor belt and carry of the material, to ensure the stability of the conveyor belt.
In general, the fixed belt conveyor roller is the following:
1.Trough roller: it is also known as carrying roller which is used for carrying bulk material;
2.Parallel roller: parallel upper roller is used for carrying materials, parallel lower roller is to support the return branch of the conveyor belt;
3.Self-aligning roller: it includes taper aligning supporting roller and friction aligning roller which are mainly used for adjusting the belt deviation to avoid S-shaped, so as to ensure the stable operation of conveyor belt;
4.Impact roller: it is installed in the lower part of the conveyor belt, which can reduce the impact of the conveyor belt to extend the service life of the conveyor belt;
5.Return roller: it supports the conveyor belt of lower branch,including parallel type, V type, inverse V type,etc. V and inverse V type roller can reduce the conveying belt deviation possibilities;
6.Transition roller: it is installed between the drum and the first set of roller, which makes the conveying belt gradually turns from through shape into or flat shape and reduce additional stress of the conveying band edge turns to trough shape due to the expansion, at the same time,it can prevent the material spreading phenomenon of conveyor belt.
In addition, the comb type roller and screw roller, which can remove the sticky material on conveyor belt to keep the conveyor belt clean. 

Five Reasons Why You Need Pay Attention To Conveyor Pulley

Rubber falling off the pulley is one of the common trouble of belt conveyor,after many years of practice and analysis, the reasons are as following:

1.The wrapping angle between pulley and belt is too small.
Peripheral force of driving pulley is transmitted to belt by friction.In running,in order to avoid slipping between pulley and belt,the belt tension is not allowed too big.According to Euler’s Formula,if the wrapping angle is smaller,the belt tension will be bigger,so it’s easy to slip.Slipping will speed up the wear of pulley.
2.Water or wet material stick on the belt surface.
When transporting material contents dust,like coal,ore and so on ,we usually use water spray to remove dust,thus water will be mixed with material and stick on belt surface,besides,rain will also lead water sticking on belt, once water sticks on belt surface,the friction coefficient between belt and pulley will decline which will cause slipping between belt and pulley,and speed up the wear of pulley.

conveyor pulley

3.The tension is too small.
Tension device is very important to conveyor pulley,if the tension is too small,it will lead to slip,causing wear of pulley,when the tension distance is not enough and the belt with permanent deformation,we can cut a segment of belt,then vulcanize again.
4.The failure of cleanser.
The failure of cleanser can result in the adhesive materials entering into belt and pulley,causing wear between belt and pulley, thus the rubber cover will fall off the pulley,and reduce the service life of belt.
5.Belt conveyor material scattering .
Belt conveyor material scattering is a common problem,when the material scatter during machine running,a portion of material will enter into belt and pulley,which will cause the wear of rubber surface and belt.

conveyor pulley

The Daily, Weekly, Monthly Belt Conveyor Check

When using the belt conveyor, less daily check and maintenance or do not pay attention to maintenance will greatly reduce the service life of the belt conveyor, when the belt conveyor problems occur, it will affect the work efficiency, so regular inspection for belt conveyor parts is needed.
Daily check
Mechanical items: inspect the guardrail, bridge, roller, pulley, turnabout pulley and belt.
Electrical items: inspect the anti-skid device, deviation switch, emergency stop switch, tear detection device, anti-reverse device.

Weekly check
Mechanical items: inspect the driving wheel, guide wheel section, reducer, inspect the machine's tail, check tensioning device and pull rope device.
Electrical items: inspect the main motor, inverter, filter, repair and inspect the main transformer wiring, electrical control, power system.
Monthly check
Mechanical items: inspect the rope wheel, transition wheel, guide wheel, driving wheel, belt wheel, tensioning car and check the oiling.
Electrical items: inspect the fastening bolts, fast switch; the maintenance and repair of commutator, limit protection, emergency stop protection and the alarm system. 

 

Notice! Prohibit the following things during the operation of mobile belt conveyor

During the operation of mobile belt conveyor, if we operate it in the wrong way, it may lead to short service life, conveyor damage, even hurt the operator, please see the following things which are prohibited during the operation of the mobile belt conveyor:
1. Prohibit turning on the switch before making sure all nuts and bolts are tighten.
We usually disassemble the mobile belt conveyor during transport process. Customer needs to assemble it on site. If the nuts and bolts are loose, they may fall off during operating, thus, it will be a great potential safety hazard.
2. Prohibit changing the conveyor head direction before shutting down the switch.
Please shut down the switch first if when you want to change the conveyor head direction, or it will be easy to hurt the operator.
3. Prohibit moving the conveyor before shutting the switch
Mobile belt conveyor is a kind of light- weight conveyor, it can be moved anywhere, however, please shut down the switch first before moving it to ensure the safety of the operator.
4. Prohibit standing under the conveyor.
Please note, prohibit standing under the conveyor no matter operate the conveyor or not.

Safety Cautions of Fixed Belt Conveyor

Safety Cautions of Fixed Belt Conveyor

In the process of daily use,many users may use the wrong way to operate the belt conveyor.It will not only result in conveyor damage, but also harm to the operating personnel. Please pay attention to the following safety operating methods in order to utilize the fixed belt conveyor better.

Before the fixed belt conveyor put into use,uses should attention the following aspects.

1.Install the fixed belt conveyor according  to the prescribed installation methods

2.Check the running part of the belt buckles and bearing device is normal, whether the protective equipment is complete

3.The temperature of the working environment and delivery of materials shall not exceed 50 ℃ and lower than -10 ℃

Fixed Belt Conveyor

4.No pedestrians or take stand by the conveyor belt

5.Ensure the conveyor motor insulation is good

During the operation of belt conveyor,users can not ignore the following aspects.

1.No-load start the belt conveyor. Functioning rear can into the material.

2.When the conveyor is running the series, we should begin the discharge end, a sequence start. 

3.Be sure to stop into the material and then stop

4.Forbidden to pull the belt by hands,in order to avoid the accident

Sew Belt Conveyor Motor

Looking to Change Your Conveying and Screening Equipment?

Looking to Change Your Conveying and Screening Equipment?

In the process of operation,the conveying and screening equipment always cannot meet the needs of large materials supply.In order to improve the production efficiency and increase equipment capacity,conveyor and vibrating screen equipment will be used together with bin. Here our engineer will show you some useful tips for you purchase equipment.Hope this can be most help you.

Why we should use the bin together with the conveying and screening equipment?The reason is that the bin is an important connecting parts for the belt conveyor or vibrating screen.Silo is a common connection device,which has the advantages of store materials,reduce the impact to screen mesh when feeding material and increase the service life of the equipment.In the bottom of the bin to join electric flashboard valve or warehouse wall vibrator can better control of hopper feed speed, even feeding.

Adding silo or hopper above the conveying equipment or screening equipment can not only increase productivity, but also reduces the amount of labor intensity and operating personnel workers, thereby reducing the cost of the pipeline, save production costs.So don't change you conveying and screening equipment so fast.Maybe you can add a bin or hopper,then the problem will be solved.

bin-of-screw-conveyor-drawing 

PK Machinery has been exporting belt conveyor, bucket elevator, scraper conveyor, screw conveyor, vibrating screen and other spare parts for many years. We do believe business between our customers and us can develop fast. Any enquiry, please contact us!

Tel:+863735799198

Fax:+863735071699

E-mail:info@pkmachinery.com

Website:www.pkmachinery.com

Keep Attention the Safety Installation of Coal Mine Belt Conveyor

Keep Attention the Safety Installation of Coal Mine Belt Conveyor

In order to ensure the safety of the operator,it is better to keep the correct installation method in the process of coal mine belt conveyor.Here PK Machinery would like to introduce the measures according to the following aspects.

1.Overall installation standards

   When installing the belt should be:

   ①In accordance with the given production midline, belt should lay flat

   ②Guarantee the upper and lower rollers complete and effective

   ③Make sure sweeper is installed in line with the provisions

   ④Ensure the head closure plate, tail fence is complete and reliable

2.Belt Parts Installation:Components are installed in accordance with the tail, the middle frame, the nose, the order of the belt to transport and put.When the belt is installed to meet the requirements, fixed each connection bolts

3.Belt conveyor is installed in accordance with the head, the middle frame, tail, belt,each roller and belt center line should be put into a straight line

4. Sweeper Installation: When installing, Sweepers require good surface contact with the conveyor belt, while ensuring the nose and tail have a sweeper

5.All the installation is complete and ensure that all rollers in contact with the tape in good condition after, began to test.

coal-conveyor-belt

PK Machinery has been exporting belt conveyor, bucket elevator, scraper conveyor, screw conveyor, vibrating screen and other spare parts for many years. We do believe business between our customers and us can develop fast. Any enquiry, please contact us!

Tel:+863735799198

Fax:+863735071699

E-mail:info@pkmachinery.com

Website:www.pkmachinery.com

Please Focus on the Installation Method of Portable Belt Conveyor

Please Focus on  the Installation Method of Portable Belt Conveyor 

As an efficient and convenient transportation equipment, mobile belt conveyor has played an important role in the process of conveying bulk material, lump material and other materials.

Upon receipt of inquiry Mobile belt machine, our engineers according to the different needs of customers, design different bandwidth and different lengths.
However, due to the packaging volume of mobile belt conveyor is too large, in order to facilitate transport, we generally will demolish the mobile belt conveyor before shipment.Therefore,when customer received the equipment,they need to disassemble the mobile belt conveyor again.
It should be noted that, during the installation process, the core of the belt conveyor is installed to install the rope and belts.Whether they install the rope and belts correctly will impact directly on the lifting capacity and operational capabilities when using belt.
In order to allow customers to better put into use, our engineers attached the following drawings to show the installation of wire rope and belt toward:

operation-direction-graph-of-portable-belt-conveyor

If you want to know more information about portable belt conveyor,welcome to contact us via info@pkmachinery.com 

Our Website is www.pkmachinery.com

What Should You Pay Attention to About the Conveyor Belt with Large Angle?

Why you should pay attention to the belt conveyor with large angle? That almost because the heavily damaged by the belt which is under the overload.And then,this damaged will not only lead to the belt reversal,but cause more seriously accidient like belt broken,frame destroy.In order to avoid more damaged by the conveyor belt with large dip angle,it is necessary to learn the anti-reversal control methods.The following introduction would like to introduce the analysis detailedly.

Are you still using the capture device method to avoid this destory by the overload?You may find that it doesn't have a better real effect.Today we will show you a fresh way which you should pay attention so much.

With the anti-reversal control method,it’s better for you to adopt unidirectional rollers.

1.     When the belt goes up, the rollers will rotate accordingly

in this case, friction between upper belt and rollers is rolling friction.

2.     When the belt is breakage and upper belt goes downward slide, the rollers will not do reverse rotation

on this occasion, friction between upper belt and rollers is sliding friction. 

And then,in this way can it realize breaking.

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Henan Pingyuan Mining Machinery Co., Ltd is the most professional manufacturer of Belt conveyor, Vibrating screen, Bucket elevator, Screw conveyor, and Scraper 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.

Henan Pingyuan Mining Machinery Co., Ltd 

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

Tel: +86 373 579 9198

Fax: +86 373 507 1699

Email Address: info@pkmachinery.com

Official Website: http://www.pkmachinery.com/

How do I Convey the Gravel by Sidewall Belt Conveyor ?

Sidewall belt conveyor is continuous transporting equipment of loose bulk materials such as coke, coal, limestone, sand and gravel.Gravel is the loose bulk materials,which is composed of  unconsolidated rock fragments that have a general particle size range and include size classes from granule- to boulder-sized fragments. Gravel is categorized by the Udden-Went worth scale into granular gravel (2 to 4 mm or 0.079 to 0.157 in) and pebble gravel (4 to 64 mm or 0.2 to 2.5 in). One cubic yard of gravel typically weighs about 3000 pounds.

Gravel is an important commercial product, with a number of applications. Many roadways are surfaced with gravel, especially in rural areas where there is little traffic. Globally, far more roads are surfaced with gravel than with concrete or tarmac; Russia alone has over 400,000 km (250,000 mi) of gravel roads. Both sand and small gravel are also important for the manufacture of concrete.When convey the material like gravel,it may use the belt conveyor.

How the belt conveyor can transport  the gravel?Here PK Machinery would like to introduce the advantages and features of sidewall belt conveyor as follows.

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

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.
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Henan Pingyuan Mining Machinery Co., Ltd is the most professional manufacturer of Belt conveyor, and Vibrating screen, Bucket elevator, Screw conveyor, Scraper 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.

Website:www.pkmachinery.com
E-mail: info@pkmachinery.com
Tel: +86 373 579 9188
Fax: +86 373 507 1699
Address: 289 Yellow River Road, Xinxiang City, Henan Province, China 

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.

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.

 

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.

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Henan Pingyuan Mining Machinery Co., Ltd is the most professional manufacturer of Belt conveyor, Vibrating screen, Bucket elevator, Screw conveyor, and Scraper 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.

Henan Pingyuan Mining Machinery Co., Ltd 

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

Tel: +86 373 579 9198

Fax: +86 373 507 1699

Email Address: info@pkmachinery.com

Official Website: http://www.pkmachinery.com/