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

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

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/

Reasons of Drifting of Belt Conveyor

As one of the most common conveyors, belt conveyor is widely used in metallurgy, chemical, electricity, coal, mining, port, transportation and so on. In operation of belt conveyor, there is much drifting of the machine. The following is reasons of the phenomenon.

1. There is coal or other attachments in the surface of pulley or idler.

2. There is mistake in the degree of net post manufacture of driving pulley and bend pulley.

3. Driving pulley and bend pulley are not parallel.

4. Diameters of driving pulley and bend pulley are inconsistent.

5. Center line of driving pulley and bend pulley is not vertical with center line of machine body.

6. Feeding position is inappropriate.

7. Center of pulley is not in the center line of the machine.

8. Installation of idler is inappropriate.

9. Stiffness of frame is bad which causes the deformation of the machine.

10. Joint of belt conveyor is inappropriate or the belt conveyor is aging and deterioration.

11. Rotation of unilateral bearing is not flexible.

12. The damage of ware of the two side of driving pulley are inconsistent.

13. The adjusting device is damaged.

14. Girdle pulley in head and bend pulley are not parallel.

15. Center lines in both sides of belt conveyor are not consistent, or the margin of belt is heavily damaged.

16. Installation of feeder, unloader and sweeper is inappropriate.

17. Degrees of ware of two sides of coal unloading pulley are inconsistent.

18. Take-up tension of belt conveyor is not enough.

19. Feeding direction and height arrangement are inappropriate.

20. Support of idler is heavily damaged.