Troubleshooting of Bucket Elevator

The bucket elevator is a kind of mechanical equipment used for conveying materials from a lower position to a higher position. This is one of the common mining machinery used in processing industries. It is able to convey large materials size and particles such as coal, cement, sand and rocks. If the Bucket Elevator malfunctions, the source of faulty operation may frequently be found by observing the nature of the fault and applying some simple checks and remedies to correct the malfunction. The following troubleshooting table is provided for this purpose.

Trouble	Possible Causes	Remedy
Normal capacity cannot be attained	1.Material is bridging at inlet. 2.Motor not developing operational RPM. 3.Material caked on buckets.	1.Correct method of feeding to insure even feed at elevator’s rated capacity. 2.Correct power source problem. 3.Clean buckets.
Unit stalls or plugs up	1.Belt has too much slack causing buckets to jam. 2.Motor not developing operational RPM. 3.Discharge spout or down spouting plugged. 4.Slipping drive.	1.Make adjustment at take up bolts. 2.Correct power source problem. 3.Check all spouting for foreign material, build-up, dents and turns which may impede material flow. 4.Adjust drive belts and roller chain tension.
Noisy operation (i.e. buckets rattling)	1.Elevator out of plumb. 2.Belt too loose or not centered on pulleys. 3.Material caked on pulleys. 4.Damaged or loose buckets.	1.Straighten elevator and plumb. Position braces so elevator is not forced out of alignment when attached to structures which may shift with loading or unloading. 2.Take up belt at splice, re-align and tighten belt with take-up bolts. 3.Clean pulleys 4.Replace or tighten buckets.
Pulley drags or does not turn	Frozen bearing	Lubricate or replace bearing

 -------------------------------------------------------------------------

Henan Pingyuan Mining Machinery Co., Ltd is the most professional manufacturer of Belt conveyor, andVibrating 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.

For more information, pls do not hesitate to contact us via : 

Web:http:www.pkmachinery.com

Mobilephoe:+86 18338953783

Tel: +86 373 579 9198

Fax: +86 373 507 1699

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

Types of Bucket Elevator

Bucket elevators are widely used systems for vertical transport of bulk, dry, wet and even liquid materials. It is designed with various options of height, speed and constructive details depending on the type of materials to be transported. It is constructed by pieces or unit to allow to define efficiently the needed height. A bucket elevator consists of head hood, engine, drive and pulley, discharge spout, casing, belt, bucket, clean outdoors, tensioning device, boot inlet hopper and boot.

      There are two types of load input which are directly to the input hopper or by digging. The method of directly to the input hopper is used for transport of abrasive and big size materials and it’s chain/belt travelling speed is low. For digging method, it is used for transport of materials that offer no resistance to extraction, like fine grain and dusty materials.

Input hopper	Digging input

      There are few types of discharge which are centrifugal, gravity or continuous and positive. Centrifugal discharge is the most common discharge option. It has great travelling speed of 1.2 and 1.4 m/s. It’s loading is carried by dredging the material at the bottom of the elevator. The separation distance between the buckets is 2 to 3 times the bucket height. For gravity or continuous discharge, it’s travelling speed is lower which are 0.5 and 1.0 m/s. It is taken advantage of self-weight. There are two classification of this discharge, free gravity and forced. The free gravity is necessary to change the free branch line or incline the bucket whereas forces are where the buckets are situated one after the other without separation between them. The discharge takes place due to gravity by means of the lower part of the preceding buckets that acts as a discharge spout. The positive discharge is similar to the gravity elevator safe that buckets are fitted at the edge with two cords. Bucket speed is low are appropriate for light, aired and sticky materials.

 

 -------------------------------------------------------------------------

Henan Pingyuan Mining Machinery Co., Ltd is the most professional manufacturer of Belt conveyor, andVibrating 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.

For more information, pls do not hesitate to contact us via : 

Web:http:www.pkmachinery.com

Mobilephoe:+86 18338953783

Tel: +86 373 579 9198

Fax: +86 373 507 1699

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

Factors that need to take note when planning the intake to feed material into Bucket Elevator

There are several factors that should be taken into account when planning the intake to feed material into the elevator. The method and the location of intake openings in the boot usually will have been determined when the elevator was ordered. However, if the intake arrangements have or are being changed, several factors must be considered.

1.Inlet or Hopper Size:

The size of the inlet affects the capacity and the condition of the elevated material. Too small an inlet means the material must be fed into the boot at excessive speed. The excess velocity of incoming material cause damage, the buckets do nt fill properly, and material backs up in the boot, clogging the inlet.

2.Up Side In-feed Devices:

The device which feeds the elevator, (auger, belt conveyor, spout, hopper, etc.), must feed the material into the boot above the centerline of the pulley. The buckets must complete the turn around the pulley and be moving vertically upward, not at a tangent, before encounter the incoming material to be elevated. Of the buckets are not moving vertically upward when they encounter the incoming material, material will be forced back into the in-feed device or chute. Grinding and churning in the boot area will damage the product and excessive power will be required to operate the system.

3.Down Side In-feed Devices:

Several factors, most importantly the nature of the material being elevated, are important in determining the location of down side or down leg in-feed devices. If a change in in-feed arrangement from that shown on the certified drawings is contemplated, consult Inter Systems before proceeding with modifications.

4.Flow of material to the In-feed Devices:

Every effort should be made when designing the feeding equipment or spouting such that the direction of the flowing material will be perpendicular to the buckets. Reduce or eliminate any side loading of the buckets. Achieving the bucket elevators rated capacity is determined by even and consistent bucket fill.

 

 -------------------------------------------------------------------------

Henan Pingyuan Mining Machinery Co., Ltd is the most professional manufacturer of Belt conveyor, andVibrating 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.

For more information, pls do not hesitate to contact us via : 

Web:http:www.pkmachinery.com

Mobilephoe:+86 18338953783

Tel: +86 373 579 9198

Fax: +86 373 507 1699

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

Introduction of bucket elevator

Henan pingyuan mining machinery Co., Ltd provides various type of bucket elevator which are belt bucket elevator, ring chain bucket elevator, cement bucket elevator, plate chain bucket elevator, efficient bucket elevator and silo bucket elevator.

Belt Bucket Elevator

It is designed for transporting vertically for granular, powder and small block of grinding suction smaller disperses the shape material. It adopts belt as the traction component , can reach to max.40 meters . Capacity could be approx. 4~238m3/h 

Ring Chain Bucket Elevator

Bucket elevator is designed to transport powder, granular and lump materials, which also can lift abrasive materials, such as fly ash, slag, limestone, cement slurry, cement clinker, cement, coal, dry clay, etc., it has an opening bin below for storing material, when the motor driving the endless plate 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.

Ring chain Bucket Elevator is applied in the vertical conveying of abrasive powder, granular and small lump materials, such as grain, coal, cement and crushed ore, etc., and its transportation height can reach to 40m. The bucket chains are characterized by simple structure, stable operation and hybrid or gravity discharge. The wheel rim uses combination sprocket, and it is easy to replace and has been specially treated to ensure a long service life. The underpart is equipped by gravity automatic tensioning device, so that it can maintain a constant tension to avoid slipping off the chain. The material temperature can not exceed 250 °C.

Cement Bucket Elevator

NE type bucket elevator’s traction configuration is plate chain , which is used for vertically transporting powder , granular and block material , and also high grinding material , such as coal powder , slag , limestone , cement raw material , cement clinker , cement , coal , dry clay etc , material temperature is less than 250℃. Max. Lifting height can be 40m .It is special for cement,so we also call it cement bucket elevator.

Plate Chain Bucket Elevator

    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

Efficient 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. 

Silo Bucket Elevator

TZD bucket elevator is a kind of bucket elevator special for silo. Silo bucket elevator is special adapt to lifting material that in small size and p< 1 t/m3.There are two kinds of buckets for it, one is made by steel, the other one is made by plastic.

For more information, pls do not hesitate to contact us via : 

Web:http:www.pkmachinery.com

Mobilephoe:+86 18338953783

Tel: +86 373 579 9198

Fax: +86 373 507 1699

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