Wednesday, December 16, 2015

Caution of the Bucket Elevator Selection

Bucket elevator is a kind of hoisting equipment which is extensively used for cement, chemical products, grain, slag and many other materials or products. But how much do you know about model selection of bucket elevator? Here PK Machinery will illustrate the knowledge from the following aspects:
Bucket Elevator
1. General bucket elevator tape as an ordinary rope wire rope heat tape and tape, rope tape suitable for general below 80 ℃ materials, heat-resistant wire rope tape applied to below 120 ℃ materials.
2. Taking into account the feed is uneven, uneven material block size and other factors, in selecting hoist, lift amount of margin should be larger.
3.The bucket elevator drive bracket and maintenance platform installation on the head of the shell, does not need the other set. The user should state that whether to overhaul platform according to the need.
4.The bucket elevator has a head housing flange for dust, such as conveying powder materials can be accessed by a large dust collector.
5. If the selection please provide the following parameters: the desired height, material type, size, density, temperature, moisture, feeding device name used indoors or outdoors.
6.When transporting ash materials, the bucket speed should less than 1.3 m / sec.The transmission part should be an extra design.


Model Selection of Belt Bucket Elevator
Further information,please click: www.pkmachinery.com 

Tuesday, December 15, 2015

Mainly Factors about Model Selection of Bucket Elevator

As common used lifting equipment, selection of bucket elevator is effected by many factors, wrong model will give customers endless troubles. Generally, model selection of bucket elevator depends on the following factors.
1. Material shape: powder, granular or small lump material.
2. Physical property: adsorbability or viscosity, and moisture content.
3. Proportion of material: common bucket elevator parameters are designed and calculated according to the materials which mass density under 1.6. While large proportion of materials are according to tensile strength of traction and drive part.
4. Unit conveying capacity:
Generally speaking, shape of material directly determines the discharging method. It is common practice that powder materials use centrifugal discharge and gravity discharge for lump materials. In addition, different charge method determines the different type of bucket, centrifugal discharge always use shallow or arc bucket, while deep bucket for gravity discharge. The unit conveying capacity of bucket elevator is different as its different bucket type. The conveying capacity of bucket elevator is a comprehensive parameter that depends on bucket type, speed, proportion of material, property of material and number of bucket. Selection process is as follows: proportion of material, property of material, discharging method, bucket type, conveying capacity and the model.
bucket elevator supplier
 Bucket Elevator

Saturday, December 12, 2015

How Much do You Know the Reasons of Buckets Falling of Bucket Elevator?

1.Too much feeding. It will cause material blocking in the machine, and increase elevator resistance. Feeding too much is the main reason of buckets’ falling. Stop the machine immediately in the situation, and take out spile under frame. Discharge material in engine base, replace new buckets, and then start to production. Meanwhile, decrease feeding volume uniformly.
2.The position of inlet is too low. In general, bucket serve materials from inlet automatically when bucket elevator is in operation. If the position of inlet is too low, buckets may have no time to serve materials and then most materials into engine base. However, materials are lump, which is easy to cause the deformation and falling. Inlet position should be above the center line of return pulley.
 Buckets

3.Bad material of bucket with limited strength. Buckets are the bearing parts of bucket elevator, and have high requirements on buckets materials. Select material with high strength when install. In general, buckets are welded or pressed by common steel plate or galvanized plates, and edges should be folded or involved in galvanized wire to enhance the strength of buckets.
4.Haven’t discharging materials in engine base when starting up. There is always down phenomenon caused by power failure or other reason in operation. And when re-start, buckets are easy falling as too much impact if no discharging materials in engine base. Therefore, must discharge materials in engine base to avoid buckets falling. In addition, check the connection of buckets and belt regular. If screw is loose or falling, or buckets are damaged, check and replace in time to avoid more accidents.

Bucket elevator
    

Friday, December 11, 2015

How to Solve the Problem of Hopper Belt Slipping?

1) Bucket elevator uses the friction between the hopper belt and the head wheel drive shaft to lifting material. If the hopper belt strength is not enough the hopper belt will slip. At this time, you should shut down the machine immediately and adjust the take-up unit to tension the hopper belt. If the take-up unit can’t make the hopper belt fully tension, this shows that the take-up unit work distance is too short, you should re-adjusted it.

Solution: Open the joint of hopper belt, adjust the take-up unit in on the tail wheel to the highest position, put the hopper belt via head of elevator, threading head wheel and tail wheel and connected tail and head well, then the hopper belt will keep the tension but not fully tension state. In this case adjustment spindle of the take-up unit work distance should not less than 50% of the whole work distance.
Bucket elevator
2) When bucket elevator is overloading, the resistance torque will be increased and make the hopper belt slipping. In this case, you should reduce the feeding material and try to feeding uniformly. If it didn’t work, then the possible reason is there is too many material piled up in the base or hopper locked by the piled up material. At this time, you should shut down the machine and begin troubleshooting process.

3)
 If the inner surface of head drive shaft and hopper belt is too smooth, then the friction between them will be reduced, which will caused the hopper belt slipping. In this case, you can spread a thin layer on their inner surface to increase the friction.

4)
 The bearing of head and tail wheel occurs inefficient rotating will increased resistance torque and result in the hopper belt slipping. At this time, you can open, wash, oiling the bearing or change the bearing.
Bucket elevator

Thursday, December 10, 2015

The Right Way to Install the Bucket Elevator

1.Before the installation you should fixed base firstly, base should be fixed on the reliable basis, then connected to the machine base barrel step by step, finally connecting the handpiece and installing gear motor.

bucket-elevator-motor
Bucket Elevator Bearing
2.After installation and alignment the whole machinery, you should make sure that barrels across the floor and must be fixed with the floor, if it has attachment then you should install bearing housing bracket to prevent the whole machine tilt and displacement.
bottom-section
Bottom Section


3.In order to ensure seal the barrels connection allows to use the barrel gasket.
bucket elevator inspection window
Inspection Window
4.Hopper should installed on the hopper belt as required, hopper belt with hopper were placed from both ends of the handpiece. When you install the hopper belt, you should raise the bottom wheel to the highest position.
middle-section
Middle Section
5.Aligning the head wheel shaft to horizontal, and make the head and tail wheel shaft are located within a unified vertical tail plane.
6.Bucket elevator is one kind of vertical transportation equipment, head wheel, bottom wheel, and barrels should be sought in the same vertical line; the deviation per meter length should not more than 2 mm, the accumulation of deviation should not more than 8 mm.

bucket elevator manufacturer
Bucket Elevator
7.Hopper mounted in the elevator, there should not happen deviation result in the housing crash 
8.The hopper belt tensioning device should ensure the necessary uniform tension during normal work.
9.After finish the elevator installation, you should filled every lubrication part with oil lubrication, before the loading test and put into production you should make sure that the no-load test can normal work.

Friday, November 27, 2015

5 Things to Know about the Mechanized Silo

1.Classification: agricultural silo and industrial silo  Agricultural silo:Used to store food, feed and other granular and powdered materials  Industrial silo:Used to store coke, cement, salt, sugar and other bulk materials
2.Importance:Mechanized silo generally cost about a third higher than mechanical room of the warehouse cost, but it can shorten the material loading and unloading process, reduce the operation and maintenance costs, eliminate heavy bags of homework.So it is advantageous to the mechanization, automation of operation, thus becoming one of the main forms of granary.



Silo Bucket Elevator

3.Installation:The discharging hopper is always installed at the bottom of the mechanized silo, the upstream is equipped with conveying equipment. When loading materials, the bulk materials will be lifted by the bucket elevator and then discharged into the horizontal belt conveyor, the belt conveyor conveys the bulk material to the silo. When discharging material, the bulk materials will be discharged to the downstream through the dump hopper,then conveyed by the horizontal belt conveyor to other place.
4.Planar shape classification:Silo plane is divided into square, rectangle, polygon and round shape, etc.Due to the circular silo wall force is reasonable, when storing materials single species or reserves is small, it should arrange with independent warehouse or a single row layout. When storing materials or reserves larger species,it should arrange in groups.The total length of the cylinder group of storehouse is generally not more than 60 meters, the total length of the square of storehouse is generally not more than 40 meters.



Silo Bucket Elevator

5.Problems: Appropriate measures should be taken when there is large silo group length or wall force and complex ground situation, such as setting a expansion joint in order to eliminate the shrinkage stress of concrete and temperature stress effects, setting a settlement joint to avoid uneven settlement influence due to huge load difference from different parts of the structure itself or the bearing capacity of foundation soil have obvious differences, setting an earthquake cracks in order to reduce earthquake damage. 

Further information,welcome to visit our website:www.pkmachinery.com
Silo Bucket Elevator

Tuesday, November 24, 2015

How Much Do You Know about Model Selection of Bucket Elevator?

 How Much Do You Know about Model Selection of Bucket Elevator?
Bucket elevator is a kind of hoisting equipment which is extensively used for cement, chemical products, grain, slag and many other materials or products. But how much do you know about model selection of bucket elevator? Here PK Machinery will illustrate the knowledge from the following aspects:
1. Materials
A.Name of material:_____
B.Density of material:_____t/m3
C.Particle size:_____mm
D.Handling capacity:_____t/h
E.Water content of material:_____%
F.Material temperature:_____℃
2. Height
A.Lifting length(distance between inlet and outlet):_____m
B.Outline height of bucket elevator:_____m
C.Distance between shaft of head drum and tail drum(shaft of chain wheel):_____m
3.Driving Device
A.Brand:domestic or imported?
B.Voltage:__V__Hz3ph
4.Other Parameters
A.Working condition, indoor or outdoor?
B.What is the upstream and downstream equipment?
Above mentioned model selection parameters are essential,if you have other special requirements,please let us know . More information or any interest, please visit www.pkmachinery.com 

bucket-elevator-manufacturer
Bucket Elevator

Wednesday, November 18, 2015

What You Should Know about the Bucket Elevator When Installing

What You Should Know about the Bucket Elevator When Installing

Bucket elevator is a new equipment which is used for lifting materials vertically.So it can be widely used in mining,cement,power plant,metallurgy,chemical,etc..But how to install the bucket elevator safely,the notices are as follows:

1.Pay attention to the casing installation of the bucket elevator

When installing the bucket elevator,you should install the lower parts and fixed anchor bolt first,and then install the middle casing and upper casing.During the installation,high altitude bucket elevator in which part of the machine and the appropriate position of the upper casing should together with its neighboring buildings in order to increase its stability.After installing the casing successfully,you should adjust the perpendicularity correctly.


bottom-section

2.Pay attention to the chain and hopper installation of the bucket elevator

Hopper is connected with U screw,which is chain joint and fixed part of a hopper.The nuts of the U screw must be tightened and reliable locking.After installing,you should adjust them with a proper tension.

3.Adding appropriate amount of oil 

Reducer should use the industrial gear oil lubrication.
Within the bearing seat should use the sodium calcium base or butter.

bucket elevator manufacture

Tuesday, November 3, 2015

How to Install the Asbestos Tape in the Bucket Elevator?

How to Install the Asbestos Tape in the Bucket Elevator?

In the process of the installation of the bucket elevator,in order to prevent the leakage of dust, pollute the environment,our engineer always using the asbestos tape in the bucket elevator.Here we will introduce the detailed information as follows.

asbestos-tape

Why the asbestos tape has such good sealing?That's mostly because the asbestos tape is woven with high quality stone cotton yarn.Asbestos tape is suitable for various thermal equipment for heat preservation, heat insulation material or processed into other asbestos products.

bucket elevator
A good sealing plays an important role in the installation quality of the bucket elevator.  Asbestos Tape is the best choice of sealing material, which is installed on the casing flange joints.What you should pay attention is that you should put the asbestos tape into the interface before connecting flange, and then connecting the bolts.

asbestos-tape-of-bucket-elevator

Wednesday, October 7, 2015

The Solution to Solve Blockage of Bucket Elevator

If there is blockage, please stop feeding material immediately, if serious ,please stop the machine and check the cause of blockage. Please use a shovel or special tools to clear up the blocked materials instead of hands.

belt bucket elevator

1.If blockage is caused by big lump material entering into the base , please stop machine ,remove big lump materials and plugging materials.
2.If blockage is caused by insufficient tension of bucket belt, please adjust the tension after removing plugging materials. 
3.If blockage is caused by large feed flow rate which exceeds the bucket elevator capacity, please adjust the control valve or use other methods to control the flow rate after removing plugging materials .
4.If blockage is caused by feed before start-up, please remove plugging materials, start up the bucket elevator again and operate in strict accordance with the rules. You can only feed the materials after non-load running is normal.  

cement bucket elevator

Thursday, September 10, 2015

Four Methods to Solve Uneven Rotating Speed of Bucket Elevator Problem

1. Base frame blockage
The reason is feeding prior to start-up, the bucket belt lacks of tension which will cause belt skid, or the inflow rate of feeding is greater than the conveying capacity (including excessive of feeding back), as well as bulk materials enter into the base frame. The methods to eliminate the problem is to shut down the machine at once, close the feeding chute, open the base frame gate plate , clear the clogged material, and start up the machine in accordance with procedures. And also adjust the tension device in order to strengthen the clean up speed of anterior materials.
2. Conveying capacity reduces
The reason is due to the skid of the drive belt or lifting belt, insufficient rotating speed of electrical motor, uneven feeding, serious feeding back, unreasonable selection of bucket design. The methods to eliminate the problem is to adjust the tension device, check electrical motor, eliminate the fault, feed evenly, identify the cause for promptly discharge of material, and select bucket design reasonably.

bucket elevator drawings
3. Excessive of material returning back
The reason is the linear speed of belt elevator too fast or too slow, improper design or size of drive head, material discharging in the outlet is not smooth. The methods to eliminate the problem is to adjust the rotating speed of bearing, modify the external dimensions of drive head or adjust the drip plate at the bucket gap, and unblock the outlet.
4. Casing wears seriously and large power consumption
The reason is the installation of bearing tilts, dust deposition on bearing, poor lubrication, bearing failure or elevator belt is too tight, excessive of material returning back, blockage of base frame. The methods to eliminate the problem is to readjust, clean or change the lubricating oil, replace the bearing and adjust it properly. Identify the cause for promptly discharge of material, and clear the clogged materials.

Uneven Rotating Speed of Bucket Elevator Problem

Thursday, August 20, 2015

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.

hoisting capacity of bucket elevators
 
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 !

chute of discharging outlet

Thursday, August 6, 2015

Efficient Bucket Elevator Transport for Bulk Materials

1. What is the conveying material and its physical characteristics? such as bulk density, feeding size, temperature, mositure content etc.    
2. What is the processing capacity of the elevator?    
3. What is the lifting height of the elevator (distance between inlet and outlet)? 
Why we choose this bucket elevator ?
       General rubber belt is suitable for material temperature less than 80 ℃ ,heat-resisting rubber belt is suitable for material temperature less than 120 ℃. Max. Lifting height 80m , Capacity is approx. 2080 m3/h.
      THG bucket elevator adopts high strength link chain as the traction component , draw our type feeding material , centrifugal or hybrid discharge material . Material temperature is less than 250℃. Max. lifting height 75m , Capacity is approx.1800m3/h. 
       Hopper scoops up materials from the stone bucket below, then is lifted to the top with the conveyor belt or chain, and next it is downward rolled over bypass the wheel on the top and the materials are dumped into the accept slot now by bucket chain or hoist conveyor, and the whole process is over. The driving band of bucket elevator with driver is commonly made of rubber, and it is installed below or above the drive roller and the divert roller. The chain-drive bucket elevator is generally equipped with two parallel transmission chain, on which above or below is a drive sprocket and a divert sprocket. Continuous Chain or Belt Bucket Elevator for Cement are generally equipped with chassis to prevent the dust flying into the bucket elevator.
       At the same time, TDG/THG bucket elevator with Sh type buckets are widely used in transporting dry , loose and good fluidity powder , granular , block material ; with Zh type buckets are widely used in transporting moist , caking and bad fluidity powder , granular material .
Henan Mining Machinery Co.Ltd is a mining machinery manufacturer from China supplying kinds of vibrating screen,belt conveyor(conveyor belt)bucket elevator,screw conveyor,scraper conveyor and spare parts.The machines are widely used in mine, metallurgy, chemical industry, cement, petroleum etc.the business include research,design, manufacture and export.so if you have some demand please contact us freely,I would be glad.
Our company has experienced engineers who can help you install equipment with appropriate directions on site as well as the after-sale service.
Tel: +86 373 579 9198
Fax: +86 373 507 1699
Skype:pkmachinery09
Address: 289 Yellow River Road, Xinxiang City, Henan Province, China

Wednesday, August 5, 2015

Plate Chain Bucket Elevator You should know

TB Plate Chain Gravel Bucket Elevator has an opening bin below for storing material, when the motor driving the endless chain (chain or belt) through the chute, the hopper fixed in the chain of plate (chain or belt) bring the material to the discharging opening, in this way it continuously convey the material.
     It adopts plate sleeve roller chain as the traction components , gravity type discharge material. Apply to middle, big block etc grinding material, which density is less than 2t/m3. Material temperature is less than 250℃ , capacity can reach 395m3/h , lifting height is approx. 5~50m . Vertical bucket elevator are highly resistant to wear and can be placed indoor as well as outdoor.
Working principle 
Hopper scoops up materials from the stone bucket below, then is lifted to the top with the conveyor belt or chain, and next it is downward rolled over bypass the wheel on the top and the materials are dumped into the accept slot now by bucket chain or hoist conveyor, and the whole process is over. The driving band of bucket elevator with driver is commonly made of rubber, and it is installed below or above the drive roller and the divert roller. The chain-drive bucket elevator is generally equipped with two parallel transmission chain, on which above or below is a drive sprocket and a divert sprocket. Continuous Chain or Belt Bucket Elevator for Cement are generally equipped with chassis to prevent the dust flying into the bucket elevator.
Features 
    1,Application widely, not only lifting the common powder, granular and block material, but also lifting the high grinding material;
    2,Low driving power, low energy consumption, energy conservation;
    3,For lifting same material, energy consumption is 1/3~1/2 compared with the link chain bucket elevator;
    4,The whole machine with full sealed design, no dust pollution while running;
    5,The machine housing case adopt embossing structure, better stiffness, high precision, good-looking appearance;
Advantage     
    1.Bucket elevator machine applys to powder, granular, lump material, the density is less than 1.5t/m3
    2.Material temperature is less than 60 ℃, if adopt heat-resistance rubber belt, the material temperature is less than 200 ℃
    3.Driven device configuration could save much space, light weight, with backstop, low noise, running steady.
    4.4 kinds bucket type could meet different particle sizes material.
    5.Customized lifting height. 
Henan Pingyuan Mining Machinery Co., Ltd is the most professional manufacturer of Belt conveyor, and Vibrating 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.
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