High pressure gravimetric feeder for effortlessly measuring your material flows
Our mass flow-rate feeding devices are used wherever large amounts of bulk solids need to be continuously established, controlled, and fed. They provide precise feeding according to the Coriolis principle, a unique measuring principle for bulk solids based on direct, fast measured value acquisition.
The Stock HPG (High Pressure Gravimetric) feeder is the heart of the Stock feeder line. This model was researched, developed, designed, tested and manufactured by Stock, specifically for the utility and industrial power industry.
The HPG offers reliable coal flow to the pulverizer under a wide range of coal conditions. The known coal mass flow rate will allow more accurate control of excess air. This will minimize NOx formation in stack gases. Less stratification of excess air between burners and better pressure and heat control result from the equal delivery of coal to each pulverizer in direct relation to the firing rate demand. Optimum air/fuel ratios are achieved when changing loads. Coal and air are kept in proportion by the boiler control system and can be controlled. Coal leaving the pulverizer can be maintained relatively constant, ensuring proper distribution at the burner.
