Bucket Elevator

2016年3月2日星期三

4 key factors decide the function of bucket elevator

Bucket elevator can be installed singly or in a system, in order to meet the needs of the site and materials forms. The main parameter of the bucket elevator is according to the handling system, loading and unloading location conditions, production process and the characteristics of transported material,main aspects are as follows:

1. Conveying capacity: it means the amount per hour, usually calculated in weight or volume.

2. Conveying speed: improving the speed can increase the elevating capacity. Especially when use the belt bucket elevator for long distance transporting,it needs to improve the conveying speed, but if use chain bucket elevator you should not, in case of enlarging the burden.

3. Pats dimension: the dimension of parts include belt width, plate width, bucket volume, channel diameters and so on, these dimensions will have an impact on the conveying capacity.

4. Conveying distance: the total distance will have an impact on the total resistance and power.

2016年2月26日星期五

Why is Bucket Elevator Asbestos Tape so Important

We have received the feedback from our Australia customer recently. Learning that threebucket elevators had already installed and our customers knew less about how to install the asbestos tape, so here we will describe its installation methods.

Asbestos consists of fibre bundle which is made of long and thin fibres. Due to its highly fire-resistance, electric insulation and heat-resistance, asbestos tape can be widely used in sealing materials of various machines or other asbestos products.

Because of high requirements about installation quality of bucket elevators, we usually adopt asbestos tape as its common sealing material. Asbestos tape can not only prevent dust leakage and protect environment, but also reduce material waste. During the real installation, asbestos tape must be positioned in the connection of casing flanges. Before connecting flanges, please add the asbestos tape in the connections and then fix the bolts. Please see the following picture as your reference.

2016年1月27日星期三

Right Way to Solve Bucket elevator Ash Leak

Right Way to Solve Bucket Elevator Ash Leak

(1) Gasket in the flange of the whole bucket elevator casing is damaged or leakage. Please replace a new one and smear sealant as well as retighten flange bolts.

(2) If materials leak from head section and base gap, please add gasket or smear sealant.

(3) If elevation difference of feeding materials is large, it will increase the feed pressure. So please change the feeding method and add the damping device.

(4) The transmission chain is idling, please adjust the chain length.

(5) Installation of casing is not properly, please adjust the verticality of full casing length in a right positive.

2016年1月26日星期二

What is the Role of Auxiliary Transmission Motor

Generally speaking, main motor of bucket elevator is used in normal operation,while auxiliary transmission motor is generally used in the repair time.

When the main motor breaks down,starts, or during the repair process, users can use the auxiliary transmission motor to help the main motor start up, or drive the main motor at low-running speed. The connection structure of auxiliary transmission motor and the main motor is simple,the operation is reliable.

What are the Comparative Edges

1. When the main motor occurs troubles and cannot operate normally, at first please stop feeding materials.In order to protect the bucket traction pieces and hoppers from damage, operators need to clean up the materials which are hung in the air, then operators can start up the auxiliary transmission motor to clean the residual materials inside the hopper completely .

2. Compared with main motor, the power of auxiliary transmission motor is much smaller, so with the help of auxiliary transmission, bucket elevator slows down. According to this characteristic, it’s easy to overhaul bucket elevator, clean up hoppers and traction pieces through bucket elevator observation window.

2016年1月22日星期五

Bucket Elevator Casing Embossing Process

Embossing is commonly seen in the bend place. Generally speaking, according to the force requirements of bucket elevator middle casing, steel plate will be folded into geometric shapes (such as rectangle, etc.) or grooved shape in order to ensure and strengthen the intensity and stiffness of casing side. Through this kind of technology, it can enhance bucket elevator rigidity so that to prevent its deformation caused by uneven force. Meanwhile, material consumption and investment costs could be saved as well as to ensure the aesthetic appearance.

1. Stiffness Properties Advanced

Stiffness refers to the ability of material or structure to resist elastically deformable. The steel plate intensity and rigidity of bucket elevator casing can be enhanced by embossing process. Therefore it will reduce the casing deformation.

2. Improve Strength Properties

Strength refers to the ability of metallic materials to resist permanent deformation and fracture under the external force. Making a flute in the proper position of bucket elevator casing can increase its local intensity and reduce component breakage costs.

3. Reduce Costs

Ensuring the same intensity and rigidity, it can save steel plate dosage and reduce production costs by embossing process.

2016年1月11日星期一

What Problems Will be in the Material Lifting Process of Bucket Elevator

In the material lifting process of bucket elevator, there may be such problems: insufficient material lifting rate, insufficient material discharging rate and material leakage phenomenon, only they are resolved timely ,the bucket elevator can have best effects .The reasons and solutions are as follows:

(1) insufficient lifting rate:

The material is likely to be caked on the bucket or chute, clean and remove the materials regularly according to caking condition. There is also possibility that the storage capacity of bucket elevator upstream equipment is insufficient which causes less feeding material, as result, the bucket elevator can not reach the design capacity, so we should try to improve the production capacity of upstream equipment. If the speed is slow, we have to change the speed ratio of the sprocket. Or it is caused by improper or wrong material calculation, check the calculator and material proportion, calculate again.

(2) insufficient material discharging rate:

The capacity of bucket elevator downstream equipment is small, make the discharge chute block, so we should improve the capacity of the downstream equipment of bucket elevator. It may also cause by small chute size or inappropriate chute angle ,so adjust the discharging chute. There is also a possibility that the material is caked on the chain bucket or inside the chute, so we need to remove material and maintain the bucket elevator periodically.

(3) material leakage phenomenon:

If the material leaks from the gap of head section and bottom section, please add the sealing gasket or glue with sealant . Replace new sealing gasket ,glue with sealant and tight the flange bolts if there gasket of bucket elevator flange is broken. If it is caused by large material feeding height difference and feeding pressure, please change the material feeding method and add the feeding buffer device.

2016年1月6日星期三

How to Solve Problem of Bucket Elevator Ash Blocking

After technicians analyze the situation and reasons of bucket elevator blockage, they have found that most this kind of situation is caused by unreasonable design of bucket elevator. Now PK Machinery has put forward two methods to solve ash blocking on connecting pipe of bucket elevator.

1. Increase the tilt angle of this connecting pipe so as to increase the flow speed of coarse and fine ash in the tube and reduce the chance of plugging ash. But this programs need to improve the overall height of all scraper conveyor.

2. Add a vibrator below the connecting pipe to make it send ash actively. Interlock vibrator and start-stop signal of removing ash system so that it can achieve intermittent vibration. Vibration time, frequency, intermittent time can be adjusted and added to the control system according to bucket elevator working condition to achieve automatic operation. This program can solve the phenomenon of ash blocking on connection pipe.