Coal Conveying Bucket Elevator

What is Coal Conveying Bucket Elevator?

Coal Conveying Bucket Elevator is a mechanical equipment specially used for vertical or inclined conveying of bulk materials such as coal and coke. It lifts coal from low to high through a bucket fixed on a chain or belt, and is widely used in coal, power, metallurgy, chemical industry and other industries. Bucket elevator has the characteristics of high efficiency, stability and good sealing, which can meet the needs of large-scale coal transportation.

What is Coal Conveying Bucket Elevator used for?

The main purpose of Coal Conveying Bucket Elevator is to convey coal and other bulk materials vertically or obliquely, including:

1. Coal transportation: lifting coal from the ground or coal storage yard to high coal storage bins, boilers or conveying equipment.

2. Coke transportation: in the metallurgical industry, it is used for the lifting and transportation of coke.

3. Other bulk materials: vertical transportation of materials such as ore, limestone, gypsum, etc.

Coal Conveying Bucket Elevator Application Industry

1. Coal Industry:

- Used for coal transportation in coal mines, coal washing plants, thermal power plants and other places.

2. Power Industry:

- Used for coal lifting in coal-fired power plants to transport coal to boilers for combustion.

3. Metallurgical Industry:

- Used for lifting and conveying materials such as coke and ore.

4. Chemical Industry:

- Used for the transportation of coal chemical raw materials.

5. Building Materials Industry:

- Used for the lifting of building materials such as limestone and gypsum.

How does Coal Conveying Bucket Elevator work?

1. Loading Phase

Feeding method: Coal enters the hopper evenly through the bottom feed port (usually equipped with a vibrating feeder or chute).

Loading Optimization:

The hopper is designed as a deep hopper or a shallow hopper, which is selected according to the coal particle size (lump coal, crushed coal or coal powder).

The feeding speed matches the running speed of the elevator to avoid overloading or idling of the hopper.

2. Lifting stage

Vertical/inclined movement: The drive device drives the chain/belt to circulate, and the hopper moves vertically or obliquely upward along the guide rail.

Anti-slip and anti-shake design:

Anti-slip patterns are added to the surface of the chain/belt to prevent coal from spilling due to vibration.

A guide plate is set inside the shell to reduce the shaking of the hopper and ensure stable lifting of coal.

3. Unloading stage

Gravity unloading: When the hopper reaches the top drive wheel, the movement direction changes from vertical to horizontal or downward, and the coal naturally falls into the discharge port due to gravity.

Applicable scenarios: Suitable for materials with poor fluidity such as lump coal and wet coal.

Centrifugal unloading: When running at high speed (>1 m/s), the coal is thrown out of the hopper due to centrifugal force and enters the discharge port through the guide plate.

Applicable scenarios: Suitable for dry coal powder or crushed coal, dust diffusion needs to be controlled.

4. Return stage

The empty hopper returns to the bottom along the other side track and re-enters the loading area to form a continuous cycle.

Coal Conveying Bucket Elevator Features

1. Efficient transportation:

- It can continuously and stably transport large amounts of coal, with a lifting height of tens of meters.

2. Good sealing:

- It adopts a closed structure to reduce the spillage of coal dust and meet environmental protection requirements.

3. Strong adaptability:

- It can transport coal of different particle sizes and humidity and adapt to various working conditions.

4. Compact structure:

- It occupies a small area and is suitable for places with limited space.

5. Smooth operation:

- It adopts chain or belt drive, which runs smoothly and has low noise.

Coal Conveying Bucket Elevator Structure

1. Head

- Driving device: including motor, reducer, coupling, etc., to provide power.

- Head roller: drives the chain or belt to drive the bucket to run.

- Discharge port: the outlet where coal is discharged from the bucket.

2. Tail

- Tail roller: guides the chain or belt to maintain tension.

- Feed port: the entrance where coal enters the bucket.

- Tensioning device: adjusts the tension of the chain or belt to prevent slipping.

3. Bucket - Material: usually made of wear-resistant steel plate or plastic.

- Shape: designed according to the characteristics of the conveyed material, common ones are deep bucket, shallow bucket, pointed bottom bucket, etc.

- Fixing method: fixed to the chain or belt by bolts or welding.

4. Chain or belt

- Chain: suitable for heavy load and high temperature environment, common ones are roller chain and plate chain.

- Belt: Suitable for light load and high speed environment, common ones are rubber belt and nylon belt.

5. Casing

- Material: Usually made of steel plate, lined with wear-resistant material inside.

- Structure: Closed design to prevent dust from spilling and protect the environment.

6. Support structure

- Column: Support the entire equipment and keep it stable.

- Beam: Connect the columns to enhance the overall rigidity.

7. Safety device

- Speed ​​monitor: Monitor the speed of the chain or belt to prevent slipping or breaking.

- Anti-reverse device: Prevent the equipment from reversing when it stops.

- Emergency stop switch: Stop quickly in an emergency.

8. Control system

- Electrical control cabinet: Contains control elements such as start, stop, and speed regulation.

- Sensor: Monitor the operating status of the equipment, such as temperature, vibration, material level, etc.