Pneumatic conveying is a key process in ammonia water supporting solid powder handling. Our engineered system transfers powders and granules from storage silos or bag unloading points to process hoppers, mixers, reactors, or dosing units through a totally enclosed pipeline. This solution ensures reliable feeding, accurate metering, clean operation, and low energy consumption for every ammonia water related powder application.

The system usually consists of a storage silo or day hopper, a discharge aid, a rotary airlock valve, a screw conveyor or pressure tank, a blower or compressed air supply, a conveying pipeline, a receiving bin, a dust collector, and an automatic control panel. Every component is selected according to the physical and chemical properties of the solid powder, such as bulk density, particle size, moisture, abrasiveness, and fluidization behavior.

Positive pressure dilute phase conveying is the most common method. Compressed air is introduced into the pipeline through a roots blower or screw compressor. Powder is fed into the air stream from a rotary airlock or a feeding hopper and is suspended in the gas phase. The dilute mixture is then transported rapidly to the target receiver, where a cyclone separator or a bag filter separates the powder from the air. The cleaned air is exhausted, and the powder is discharged into the process equipment or storage bin.

For abrasive, fragile, or poorly fluidizing powders, dense phase conveying is often the better choice. In this mode, the material is pushed through the pipeline in dense plugs or slugs at low velocity. This reduces particle degradation, pipeline wear, and power consumption. Dense phase conveying can handle longer distances and is especially useful when the powder is easily fluidized or when a gentle transfer is required.

Negative pressure or vacuum conveying is another important configuration. It is ideal for unloading powder from bulk bags, drums, railcars, or storage silos at multiple pickup points. The vacuum system uses a vacuum pump or a blower to create negative pressure in the pipeline, drawing powder into the air stream. This configuration is favored for its simple dust collection, as all leakage is inward and no dust escapes into the workplace.

The layout of the ammonia water supporting solid powder conveying system must be carefully planned. Factors such as horizontal conveying distance, vertical lift, number of bends, available space, and access for maintenance strongly affect the pressure drop and the selection of pipe diameter. Our engineers use practical experience and calculation tools to optimize the routing, reduce the number of bends, and avoid unnecessary elevation changes. A well-designed layout saves energy, lowers operating cost, and makes future expansion easier.

Material feeding devices are also customized. For free-flowing granular powders, a rotary airlock valve can provide continuous and even feeding. For cohesive or sticky powders, a variable-speed screw feeder or a vibrated bin discharge is installed to prevent arching and ratholing. If precise dosing is required, weighing hoppers and loss-in-weight feeders can be integrated into the system. The feeding method is always matched to the material characteristics and the downstream process.

The PLC-based control system ensures fully automatic operation. It controls the start-up and shutdown sequence of the blower, rotary valve, screw feeder, filter cleaning, and discharge valves. Pressure sensors and level switches monitor the conveying status and the material level in each hopper. If an abnormal condition occurs, the system can issue an alarm or stop automatically to protect the equipment. The HMI displays a clear process flow chart and records operating data for production management.

From ammonia water treatment to chemical dosing, this system offers a cleaner, safer, and more efficient way to handle solid powders.