What Should We Note During the Installation of Large Angle Belt Conveyor

Large angle belt conveyor can be transported with large inclination , it even can be vertical. It adopts sidewall belt as the main part. The advantages are: large conveying amount, small space occupation ,small noise etc. which is widely used for conveying powder, blocked material. Here PK Machinery will introduce the installation notes during installation:
1.Check whether the components of large angle belt conveyor are complete or not
Generally speaking, belt conveyor includes lots of components: head & tail frame, concave & convex segmental arc frame and middle frame, however, the quantity of trough roller frame, rollers and sealing cover is big, you need to check carefully and guarantee the components are transported to the right place.
2.Installation, positioning and welding of head and tail frame, concave and convex segmental arc frame
First of all, please find the center line of the belt conveyor by using a steel wire. When installation, please make the head & tail frame, concave & convex segmental arc frame subject to the center line.

 

3.Check belt running and adjust the belt if it runs off tracking
After installation of belt, trough roller, self-aligning roller and vertical roller, connect the power supply , run the belt and adjust the belt offset distance .
4.Installation of large dip Angle belt conveyor accessories and bolts
After adjusting the belt, you can start to install the sealing cover, head cover and fastening bolts.

Do You Know What are the Main Technical Requirements of Conveyor Roller

1.Conveyor roller cylindrical radial circular runout
In order to guarantee the belt conveyor run smoothly, it is necessary to make strict specifications on roller radial circular runout, otherwise it will cause conveyor belt vibration, increase conveyor belt running resistance and consume more power due to its higher value. Therefore, this is an important technology index for roller.

 

2.Rotational resistance after installation of conveyor roller
Excessive roller rotational resistance will cause conveyor roller damage in advance and conveyor belt wears rapidly, it will also cause the increasing of the driving power, so this is another important technical index for roller.
3.Waterproof, dustproof, sealing performance of conveyor roller
The service life of roller depends on its sealing performance to a great extent, good seal performance can prevent dirt and moisture entering into roller bearing roller way effectively. In order to improve its service life, we must develop better way of waterproof, dustproof, sealing performance.

 

4.Roller axial carrying capacity
Generally, roller bears the roll force for only one direction, therefore, we must ensure normal operation under axial load of roller.
5. Service life of conveyor roller
This is a comprehensive index which involving the scientific rationality of structure design, the manufacturing quality of roller, bearing selection, the choice of grease and grease filling and sealing effect etc.

 

Three Horizontal Sections of Large Angle Belt Conveyor

Large angle belt conveyor is suitable for the unit mass of 500 ~ 2500 kg/m3 and the material large size of about 100 ~ 250 mm, the features of large angle belt conveyor are: simple structure, convenient maintenance, space saving and investment saving. Here PK Machinery will explain and introduce three kinds of horizontal section:
1. Upper horizontal section
In order to adapt to the requirement of different discharge height, the head frame is divided into low type frame (head frame height = 1000 mm), middle type head frame (head frame height = 1100 ~ 1100 mm) and high type head frame (head frame height = 1600 ~ 1600 mm).
Correspondingly, low type convex segmental arc frame and low type middle frame support (matched head height = 1000 mm), middle type convex segment frame and middle type frame support (matched head frame height = 1100 ~ 1500 mm), high type convex segment frame and high type middle frame support (matched head frame height = 1600 ~ 1600 mm) will match with upper horizontal section respectively
2. Lower horizontal section
The lower horizontal section adopts low type middle frame support.
3. Inclined section
The inclined section of large angle belt conveyor adopts low type middle frame support. When the conveyor inclined angle β ≧ 45 °, we suggest adopting Ⅱseries low type middle support.

The connection of upper horizontal section and inclined adopts the convex arc segments frame , and the lower horizontal section and inclined section adopt concave segmental arc frame to connect so as to realize the smoothconveyor belt transition.

Why will Belt Conveyor Motorized Pulley Get Rusty

During the operation process of belt conveyor, it will occur some problems due to incorrect method of using or wear and tear, therefore, we need to know some knowledge in order to ensure the normal operation. Here PK Machinery will list some reasons why motorized pulley of belt conveyor will rust:
1. Electroplating time is not enough, it dues to the problem of process flow;
2. Air liquidity of the location where motorized pulley stores is not good, or the location is wet, it is may due to the large difference in temperature;
3. If the package sealing breaks, the motorized pulley may oxidate and get rusty;
4. The most important point is that before electroplating, the dirt on motorized pulley surface is not being cleaned well, it is also one of the reasons why the motorized pulley will get rusty.

 

 

Please Focus on Belt Speed Selection and Principle of Belt Conveyor

As we all know, the most decisive factor of belt conveyor throughput is the belt speed, here we would like to introduce the selection method of belt conveyor belt speed:

(1) If the conveying capacity of belt conveyor is large, belt width is wide, please select a high belt speed.
(2) If the material is easy to move with big granularity and strong grinding property, please select a low belt speed.
(3) If material conveying interval is long, please choose a high belt speed; If material conveying interval is short and the conveyor angle is big, please select a low belt speed.
(4) If there is large amount of dust during conveying, the belt speed would be 0.8 m/s ~ 1 m/s.
(5) If belt conveyor works with a discharging tripper, the belt speed should not be higher than 2.5 m/s.
(6) If belt conveyor conveys finished product items, the belt speed should be less than 1.25 m/s.

Belt speed selection principle of belt conveyor : the belt speed of belt conveyor is related to belt width, throughput, material size, material properties and conveyor angle. When belt conveyor transports upward and dip angle is large, the tape speed should be low; When belt conveyor transports downward, the belt speed should be much lower. Belt speed selection also should match the cooperated material discharging equipment type, when adopts plough type discharging machine, the belt speed should not exceed 3.15 m/s.

The Development Trend of Vibrating Screen

Vibrating screen is widely used in mining, coal, smelting, building material, refractory material, light chemical, medicine, food etc..

With the higher and higher requirements, the development of vibrating screen reaches a new stage. Combining the domestic and abroad situation, it can be divided into some aspects as follows:
1.To develop in the direction of high efficiency and large output 
Development of industrial modernization process which increases enterprise scale and production capacity greatly, so it needs to match with an efficient high-throughput screening machine.
2.To develop in the direction of standardization, serialization and generalization 
This is a good way to guarantee the quality and reduce the cost , it also provides convenience for designing and organizing specialized production.

3.To develop in the direction of stronger vibration strength
The vibration of vibrating screen is strengthened gradually in order to improve productivity and screening efficiency.
4.To develop in the direction of light ,environmental protection and simply structure
Now the structure of vibrating screen is much more simple than previous one, it is more convenient to replace the screen mesh and will save a lot of time.
Henan plain mining machinery co., LTD is specialized in manufacturing screening equipment, lifting equipment and conveying equipment , with abundant engineering design experience, professional technical ability and strict fabricating specification, PK Machinery is always walking at the forefront of this developing trend!

Installation and Notes of Belt Conveyor Anti-rain Cover

1) Open cover and fixed cover are manufactured with the galvanized steel plate or the colorized coating steel plate. Generally ,there will be 1 piece of open cover and 7 pieces of fixed covers installed every 8 pieces covers, the 2 kinds covers also can be installed side by side alternately ( it also can be matched according to customer’s requirement). At first, fasten the fixed conveyor with drilling rivets and based on the line which is upward 30mm from the top of Z type steel, fix a mounting hole every 450mm, every piece of cover overlaps 2 wave crests. Open cover overlaps above the fixed covers in order to open conveniently.

 

2) The Z type steel or the connection angle iron which is the main support frame of the conveyor cover, the length is equal to the length of the installed conveyor cover
The Z type steel or the connection angle iron is welded on the channel steel or the little stiffening angle iron on both sides of the conveyor

3) Install the covers (fixed covers) from one side to another side along the conveyor, during installation, people are not allowed to stand on the covers and no hard beating and hitting is allowed.
4) Mount the fixed covers on the Z type steel with the drilling rivet. The mounting points are not less than 4 on every piece.

5) 1 piece of observation window cover could be installed every 10 pieces for convenient checking and inspecting. It is decided by users.

6) Salient point cover is only used for the salient points of the convex-concave of the conveyor. Deviation switch cover is only used for covering the deviation switch. These 2 kinds covers also can overlap the fixed covers.

 

4. Note

1) During the installation, please handle the anti-rain cover carefully and avoid scratching.

2) After installing the accessories, please clean the surface and paint the scratched points again.

 

Installation Drawing of Deviation Switch Cover

According to the location of deviation switch, please install and center the drilled cover, then put the sealing strip on the cover open point flatly according to the height of the switch box cover , then install the switch box cover with 12－Φ5 rivet.

Installation drawing of deviation switch cover .

 

 

 

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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. 

Further information please click:http://www.pkmachinery.com/faq/installation-drawing-of-deviation-switch-cover-.html 

Installation of Open Belt Conveyor Cover

View 1: Installation drawing of whole open –close type 

 

View 2: Installation drawing of half open –close type (double chip open- close type) 

 

1) installation of handle 
After overlapping the open cover and fixed cover, based on the center line of the cover, the location upward 250mm is the center line used for installing the handle (it can be adjustable according to height of the conveyor support frame). Put the handle straightly and drilling a 4－Φ5 hole, then fasten with the rivets.

2) installation of hinge 
Adjust one side of the cover up higher from the top of the Z type steel (angle iron) 5mm, inward 140mm from the front and back sides of the cover, and upward 27mm is the location of the hinge, then drill holes Φ5 and fasten with the rivet. Others holes are also fastened with the rivets. 

3) installation of the lock catch
After installing the hinge, on the other side of the cover, inward 185mm from front and back sides of the cover, then based on the bottom, upward 36mm and 77mm , drill holes Φ5 and fasten the lock with the rivet, next keeping the lock locking( clamp status), and then putting the lock nose on the Z type steel straightly and drilling hole to fasten.

4) installation of the open cover
Overlap the open cover on the bilateral fixed covers. The overlapped length should be the length of 2 pitches of waves, then put the other side of the hinge appressed on the angle iron and drill hole 4－Φ5 with the rivet fastened.

Installation of Belt Conveyor Cover Support Frame

 Belt conveyor cover is applicable to power plant, cement plant, mines and other major factories which is waterproof, dustproof and windproof, it plays a great role in reducing the loss during the process of conveying goods ,making the conveyor belt more safe and reliable in operation and purifying the environment .

As the main support frame of the conveyor cover, the length of Z type steel or the connection angle iron is equal to the length of the installed conveyor cover. Please weld the Z type steel or the connection angle iron on the channel steel or the little stiffening angle iron on both sides of the belt conveyor. If need the stiffening angle iron, at first, weld the stiffening angle iron on both sides of the conveyor, then weld the Z type steel or the connection angle iron on the stiffening angle iron, detailed steps are as following:
 1) first weld the little stiffening angle iron ∟40*40*100*4(just for reference, it also can be indicated by users) every 1.5m or 2 m on both sides of the belt conveyor ( eudipleural ). The height from the intermediate frame to the top of little stiffening angle iron should ≥50mm ( it also can be decided by users).
2) Then weld the Z type steel 30*50*30*(2.0~3.0),( just for reference, it also can be replace by angle iron) and fix it on both sides of the intermediate frame top, the inner size should be 10-20mm bigger than outside size of intermediate frame.
3) After being welded please remove welding slag then paint.
 

Vibratory Feeder and Portable Belt Conveyor Have Been Delivered

On August 19th, 2015, trommel screen, belt conveyors, vibratory feeder, hopper and gate valve ordered by Kazakhstan client and DY5012 portable belt conveyor ordered by Philippines client have been delivered from our company.

 

On August 26th, 2015, machines oredred by Kazakhstan client will be delivered to Astana, Kazakhstan from port of Xi’an by railway. And as a production line, trommel screen, belt conveyors, vibratory feeder and hopper are mainly used to screen and convey sand.

 

On August 23th, 2015, DY5012 portable belt conveyor ordered by Philippines client will be delivered to Cebu from Qindao port. Our customer has ordered two portable belt conveyors, two spare belts and some spare rollers. And this belt conveyor is used to convey packed bag that weighs 50kg. Due to move easily, it can improve conveying efficiency better. At the same time, our client speaks highly of our service.
PK Machinery is devoted to provide better products and service to our customer. So welcome to your enquiry! 

How to Solve the Insufficient Lifting Capacity Problem of Bucket Elevator

Bucket elevator offers a good help for conveying material in the factory, however, many users may doubt that why the actual work efficiency is not as good as they expected, such as insufficient lifting capacity problem, here PK Machinery will introduce some methods to increase the bucket elevator capacity in following six aspects:
1.increase the elevator speed, change the driving wheel transmission ratio
2.increase the downstream equipment capacity of bucket elevator
3. make sure the buckets are full of material.

 

4. clean the sticky materials on the buckets and wheels regularly 
5. fix and correct the chute of discharging outlet
6. avoid material inside the buckets return back
Solving the lifting capacity problem of bucket elevator effectively can not only solve the conveying efficiency for the users, but also can meet the production requirements, in our daily life of operation, please pay attention to this problem !

Maintenance Notes for Circular Vibrating Screen

1. Always keep the circular vibrating screen working in a clean and sanitary environment.
2. The bearing on both ends of the motor should be lubricated with anti- high temperature lubricating grease, in the first month, please lubricate once a week .
3. Check flange bolts on both sides of motor, the bolts which fix the mesh and the support connecting bolt shouldn’t have loose phenomenon.
4. The circular vibrating screen should be maintained every half year.
A. clean the vibrator and add grease for all lubricating points.
B. check the abrasion condition of screen mesh, if any damage , please maintain and replace timely.

 

5. The circular vibrating screen should be maintained and repaired every year. 
A. Open the motor terminal box ,check the insulation between the wires and clean the dust.
B. Add grease on all lubricating points.
C. check each part of the circular vibrating screen and abrasion condition of screen mesh, if any damage please maintain and replace timely.
E. After finishing all the work, a trial run is also required. 

 

 

 

How to Prolong the Lifespan of Vibration Motor

1. Make sure the wiring and insulation work of vibration motor is well done in order to prevent the lack of phase and short circuit .
2. Anchor bolt reinforcement work should be done frequently, take necessary prevention measures, such as using a double nut fastening to ensure vibration motor base and the floor contact well.
3. Attach great importance to the cover sealing of vibration motor, the dust inside the protection cover should be cleaned up frequently.
4. Strengthen the daily maintenance of vibration motor, remove the dust on the motor surface frequently, and reduce the impact on the vibrating motor due to the poor heat dissipation in order to make it work in a good condition.

 

5. Please pay attention to the symmetry when adjusting the vibration block, the gravity connection centerline of vibration block on both sides should be parallel to axis.
6. Check whether there is crack on motor appearance, all fastening screws and parts are complete and the fixed situation of the motor are in good condition or not.
7. Check whether the ventilation and bearing lubrication condition of vibration motor is normal or not.
8. Pull out the motor axis and check if rotor can rotate freely and whether there is noise during rotation.
9. Check whether the grounding device is reliable or not. 

 

  -------------------------------------------------------------------------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 Solve Portable Belt Conveyor Belt Skid Problem

Portable belt conveyor is a lightweight continuous conveying equipment with the features of high efficiency, good mobility, and convenient usage. It not only conveys bulking material but also realize conveying bagged material, the angle and lifting height is adjustable. In our daily life of operation, we may have trouble of belt skid problem, today PK Machinery will introduce the method to solve the problem:

1.You can adjust the stroke of tension to increase the tension to solve belt skid problem for the portable conveyor which adopts screw or hydraulic tensioning . However ,if the stroke of tension is not enough, it may lead to permanent belt deformation ,and you need to cut a piece of belt off and vulcanize again.

2.If you require long stroke of tension when using nylon or EP belt, you can also vulcanize the belt or increase the stroke of tension to solve belt skip problem.

 

 

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

Troubleshooting for Gyratory Screen

As one of our main product, gyratory screen has been supplied to many plants all over the world and also enjoys a good reputation because of its superior design and quality. Gyratory screen is widely applicable to chemical, food processing, refractory materials, building materials, activated carbon, food, PVC powder and other fine materials.
However, during the operation, we may meet some problems, here PK Machinery will introduce the breakdown reason and method in detail.
 

 

 

Breakdown	Reason	Solution
V-belt heating up	V-belt looseness Through of belt is broken or the surface is rough	Loose the bolt which fastens the motor, adjust the distance between motor and belt pulley Check and repair the belt pulley
Bearing heating up	The grease is excessive or shortage or the quality is bad Bearing is broken Main shaft bends or the inertial force is not balanced The bearing cup is not compatible with other parts Belt is too tight Overload working for a long time	Change the grease Change bearing Correct the main shaft Change the part which coordinate with the bearing Adjust the tightness of the V-belt Reduce the feeding rate
There is no force for motor	Two phase electricity Circle short for the winding Overload working for a long time	Power on the lost phase electricity to ensure it runs under 3 phases Inspect the motor Keep the screen working under the rated load
Fail to start the motor	Low voltage Electrical wiring is too thin Fuse is broken	Start the screen once electricity is normal Change the electrical wiring Change a proper fuse
Violent or wiggly vibration	The rotation shaft bends Bearing is broken	Replace or correct the shaft Replace the bearing
The unqualified size material mixed in the finished material	Screen mesh is broken Screen cover or seal bar is loose	Renew the screen mesh Press the cover and seal bar
Capacity declining	The moisture is too high, block the mesh The opening size is not suitable Rotation speed is low or the V-belt is loose Feeding rate is low The rubber ball is worn out	Reduce the moisture of material Renew the screen mesh Check the belt pulley and the tightness of belt Increase the feeding rate Renew the feeding rate

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.