Dry Sand Drum Screen Ordered by Kazakhstan client has been Finished Production

On 14th August, Drum screen, belt conveyor and vibrating feeder ordered by Kazakhstan
client are finished production and ready for delivery.

 

 

Our client is mainly dealing with building brick and curbstone production line, these 
machines will be used for screening and conveying 8-10t/h dry sand with density of 
1.4 t/m3, the working principle is as follows:

The dry sand will be transported to silo by forklift, and then the materials will be fed
uniformly to 14m belt conveyor through a vibrating feeder. After that, the belt conveyor
will convey the dry sand to drum screen with 1200m diameter. The dry sand will be
delivered to next production stage by forklift after the screening process. 

 

In addition, PK machinery also supplies bucket elevator, screw conveyor, linear
vibrating screen,circular vibrating screen, rotary vibrating screen, gyratory
screen etc., any inquiry, please feel free to contact us!

 

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 

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:

 

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.

What should We Note during the Operation of Gyratory Screen

Gyratory screen is similar to rotex screener, it is designed with gyratory motion which can obvious improves the distribution of the material. Applicable material includes urea, potash, fertilizer, activated carbon, pellet, ceramic powder, sugar, salt, starch and fireproofing material etc. Here PK Machinery will introduce necessary notes before starting up the screen.

 

1. Check the fastened part, safe protection device and lubrication before start-up.
2. Test run without load first for about 3-5mins to see if the rotation direction meets the requirement.
3. Feeding material with normal operation once non-load test run is normal,
4. Check the material discharging condition during running, if any blockage is found, please solve it timely.
5. Check the material distribution on screen mesh is uniform or not, if necessary, stop machine and adjust.
6. If there is abnormal noise or vibration that you have to stop the gyratory screen, please stop machine at once, only when the trouble is eliminated, then you can start up.
7. If gyratory screen is operated in a production line together with other equipment, please start up downstream equipment, then start up the upstream equipment.

Common Material Discharging Ways of Bucket Elevators

PK Machinery mainly offers bucket elevators with belt type,ring chain type and plate chain type which is mainly suitable for feed mills, flour mills, rice mills, oil, starch factory, grain depot, port terminals and other bulk materials conveying industry.

 

According to different discharging ways, bucket elevators also can be divided into: centrifugal type bucket elevator, gravity type bucket elevator and hybrid type bucket elevator. The introduction is described as follows:

1. Centrifugal type: it is using centrifugal force to throw the material away from discharging outlet which is applicable to the material that is dry with fast lifting speed and small particle.
2. Gravity type: under the effect of gravity, the material will discharge along the bucket back , it is suitable for material which is large and fragile.
3. Hybrid type: centrifugal force and gravity force , which is suitable for material with poor fluidity and big humidity .

  -------------------------------------------------------------------------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. 

How to Select the Suitable Belt for TD Belt Bucket Elevators

TD belt bucket elevator uses belt as its traction, there are pitches between buckets, normally ,the buckets will be fixed with belt by bolts. General used belts include: ordinary rubber belt, nylon rubber belt and steel cord rubber belt. Here PK Machinery will introduce how to select the suitable rubber belt :

Ordinary rubber belt adopts cotton as its core, then molded after being coated with rubber vulcanization,. Usually, the ordinary rubber belt is used for bucket elevator with small lifting height.

Nylon rubber belt adopts nylon canvas as its core,then molded after coated with rubber vulcanization, it is usually used for TD belt bucket elevator with the height that is relatively big.

Steel cord rubber belt is made of steel rope as its core and molded after being coated with rubber vulcanization. The strength of steel cord rubber belt can meet the requirement of high rise and large capacity development . In recent years, the demand of hundred meters’ lifting height and high efficiency bucket elevator is increasing day by day, the steel cord rubber belt bucket elevator would be a good choice.

 

Blocking Fault Analysis of Screw Conveyor

Since screw conveyor conveying space is small and it is sensitive to material, intertwining phenomenon is easy to occur when screw shaft rotates, blockage occurs in the place of hanging bearing. So blocking problem is the most common fault of screw conveyor which will affect production and increase power consumption, even the motor will burn out and screw shaft twist off which will affect the normal production. Blocking problem is caused by many reasons, we can take measures to avoid this problems:

 

1. Select reasonable screw conveyor technical parameters, for example, if using low speed screw conveyor the rotating speed can not be too fast.
2. Carry out the operation procedures strictly, non-load start-up and stop to ensure continuous evenly material feeding. 
3. Increase the outlet or extend the chute end dimension to solve the problem of unsmooth discharging or can not discharge material timely .At the same time, you can also install a section of reversed screw blade to avoid blocking. 
4. Clean up the material inside the screw conveyor in order to prevent big impurity or fibrous material enter into thescrew conveyor and occurs blocking.

 

5. Reduce the transverse dimensions of intermediate bearing as much as possible in order to reduce the possibility of material passing through the intermediate bearing.
6. Install a level sensor and blockage sensor which can achieve the purpose of automatic control and alarm. 

 

 

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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.

Maintenance Method of Portable Belt Conveyor in winter

In winter, portable belt conveyor will work in the outdoor and suffer from rain and snow, in this way, what shall we do to maintain portable belt conveyor to achieve the purpose of long-term steady operation?

1. Maintenance of motor
Concerning the operation process of portable belt conveyor in winter, motor will be the main part we should protect. Although motor damage rate is very low, if motor overloads it will still damage. As we all know, temperature is pretty low in winter, motor lubrication condition is not very good. Therefore, the motor of portable belt conveyor should be checked and maintained regularly .

 

2. Overall antirust processing for the whole machine
Though before leaving factory, portable belt conveyor was already painted again and again, after checking, we found that most of the conveyors are still rusty. This is not the problem of painting, but is the maintenance service of equipment. Especially during winter season, there is lots of rain and snow. In many cases, portable belt conveyors are not properly covered in raining and snowing environment . So in the long run, even using the best painting and steel ,the service life of portable belt conveyor will still reduce. 
In conclusion, the suggestion is to make the conveyor covered and keep the conveyor away from rain and snow to extend the service life.

 

3. Maintenance and replacement of spare parts
Conveyor roller is the most used spare parts of portable belt conveyor, so we need to check the wear condition and bearing using condition of roller frequently. Concerning the damaged roller, you should replace timely.
For conveyor belt, please clear up the belt surface and the accumulated impurities timely in order to avoid long time abrasion.

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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.