Slightly Positive Pressure (Dilute Phase) Pneumatic Conveying

The GSB continuous pump operates on the principle of pneumatic pressure differential, combined with advanced jet flow technology and fluidization technology, fully incorporating the modern theory of two-phase flow in pneumatic conveying. After the motor-driven airlock feeder achieves balanced feeding, the powdered material is drawn into the gas-ash mixing chamber. The feeder utilizes a uniquely designed nozzle (which generates high vacuum, i.e., relatively strong negative pressure) to uniformly mix the material with the gas, and then delivers the material into the conveying pipeline, where the pneumatic pressure differential transports the material along the pipeline to its destination.

Its core technology lies in the annular configuration of the ejector nozzle, which enables the ejector to produce a high vacuum without generating turbulence that would cause energy loss—this is the most critical feature distinguishing this equipment from other conveying pumps.

The GSB continuous pump consists of two main components: the motor-driven airlock feeder and the feeder (gas-ash mixing chamber, nozzle, and Venturi tube).

Application Scope

Conveying distance ≤ 300 m; conveying capacity ≤ 100 t/h; suitable for short-distance conveying in power plant dust removal systems, as well as the conveying of various powdered materials in large concrete mixing plants, building materials, metallurgy, chemical, and other industries.

System Components

Power source (Roots blower), jet pump assembly, piping, valves, silo-top dust collector, ash silo and associated equipment, instrumentation, and control system.

Key Components

Process Flow Diagram

Technical Innovation Highlights

1. It adopts a continuous and uniform feeding and conveying method, with low conveying concentration, stable operation, high safety and reliability, and virtually no risk of pipeline blockage.
2. The process is simple with few components; each conveying pump is equipped with one motor-driven feeder, with no pneumatic components, no frequent starting/stopping of valves or equipment, resulting in a low failure rate, extremely simple and convenient maintenance, and virtually no wear parts.
3. The power source uses a low-pressure Roots blower, offering low energy consumption and low operating costs, saving 20% compared to dense-phase ash conveying systems.
4. Low-pressure power is used for continuous conveying, with a low and constant flow velocity in the pipeline, resulting in minimal pipe wear and a long service life.
5. The control is simple and convenient; if a problem occurs in the automatic program, the corresponding equipment can be started manually at once according to the instruction manual, and no frequent operation is required after normal operation is established.
6. Easy to operate, with low requirements for operators; simple to handle and no frequent intervention needed.
7. Due to the unique design of the conveying pump, one conveying unit can serve two hoppers, saving on investment.