An air conveying chute is a powder conveying device that uses airflow to fluidize powdery materials and achieves continuous conveying by the material's own weight. Air conveying chutees are simple in structure, operate smoothly, and have low energy consumption, making them widely used in the cement, building materials, mining, chemical, and power industries for conveying powdery materials.

On cement production lines, air conveying chutees are commonly used for the horizontal or inclined conveying of dry, fine powders such as cement, raw material powder, coal powder, and fly ash. Customization is available based on the production line layout and material conveying requirements.

Working Principle of Air Conveying Chassis

An air conveying chute mainly consists of a chute body, a permeable layer, an air inlet system, a feed inlet, a discharge outlet, and a supporting structure. During operation, low-pressure air enters the lower part of the chute and evenly enters the material layer through the permeable layer, gradually fluidizing the powdery material.

Under the chute's installation angle and gravity, the fluidized powder moves continuously forward along the chute's direction, thus completing the material conveying process. The entire conveying process lacks moving parts such as chains, scrapers, or conveyor belts found in traditional mechanical conveying equipment, resulting in minimal mechanical wear.

Applications in the Cement Industry

Air conveying chutes are particularly suitable for the continuous conveying of large quantities of dry powder in cement production.

In cement powder conveying, air conveying chutes can be used for material transfer between cement mills, cement silos, finished product silos, and cement packaging systems. The enclosed conveying structure reduces dust diffusion into the surrounding environment, contributing to improved working conditions.

In raw meal powder conveying, air conveying chutes can be used for material transfer between raw meal mills, homogenization silos, and related equipment in kiln systems. For fine-grained, highly flowable raw meal powder, air conveying chutes enable continuous and stable material transfer.

Besides cement and raw meal, air conveying chutes can also be used for conveying dry powdery materials such as fly ash, mineral powder, and limestone powder.

Key Features of Air Conveying Chutes

Simple Structure: Air conveying chutes lack complex mechanical transmission mechanisms, resulting in relatively simple equipment composition, facilitating installation, operation, and maintenance.

Stable Operation

Utilizing low-pressure air to fluidize powder materials, combined with a suitable installation angle, enables continuous and stable material conveying.

Low Mechanical Wear

The absence of high-speed moving parts such as chains and scrapers during conveying reduces direct wear between mechanical components.

Low Operating Noise

With fewer moving mechanical parts, the equipment generates low mechanical noise during operation, making it suitable for long-term continuous production in cement plants.

Closed Conveying System

Air conveying chutes typically employ a closed structure, minimizing dust escape and helping to maintain a clean production environment.

Suitable for Continuous Conveying

Air conveying chutes are suitable for continuous powder conveying in cement production lines and can be integrated with elevators, bucket conveyors, silos, dust collection equipment, etc., to form a complete material conveying system.

Materials Applicable to Air Conveying Chasses

Air conveying chutes are mainly used for conveying dry, fine-particle, and somewhat free-flowing powdery materials, such as:

Cement, Raw meal powder, Fly ash, Mineral powder, Limestone powder, Clinker powder, Coal powder, and other dry powdery materials.

The particle size, moisture content, flowability, and bulk density of different materials will affect the conveying efficiency. Therefore, the chute specifications, permeable layer, installation angle, and air supply parameters need to be determined based on the actual material characteristics during equipment design.

Typical Applications of Air Conveying Chasses in Cement Plants

On a cement production line, air conveying chutes can be installed in different sections according to the on-site process layout. For example:

Cement mill → Cement silo: Used to convey ground cement to the cement storage system.

Raw meal mill → Homogenization silo: Used to convey ground raw meal powder.

Cement silo → Packaging system: Used to convey cement from storage equipment to the packaging or bulk shipping system.

Powder Equipment → Lifting and Storage Equipment

Used in conjunction with bucket elevators, air conveying equipment, and other powder conveying equipment according to the production line layout.

Customized Air Conveying Chassis

Different cement plants have different conveying distances, outputs, installation space, and process flows; therefore, air conveying chutes can be designed according to the customer's site conditions.

Weifang Zhitian can match the chute dimensions, permeable layer, inlet/outlet, and air supply system to parameters such as material type, conveying capacity, conveying distance, installation angle, and site space.

For cement, raw meal powder, fly ash, and other dry powder materials, a properly configured air conveying chute can meet continuous conveying requirements and facilitate connection with existing cement production lines.

Conclusion

Air conveying chutes are a mature powder material conveying device, especially suitable for conveying cement and raw meal powder in the cement industry. With its simple structure, stable operation, low mechanical wear, and good sealing performance, air conveying chutes can meet the requirements of long-term continuous operation of cement production lines.

Weifang Zhitian can provide air conveying chute equipment and supporting conveying solutions according to the customer's actual production process and on-site installation conditions, providing equipment support for the conveying of powder materials in the cement, building materials, mining and chemical industries.