Linka - Wood Chips Steam Plant: 400 - 15,000 kW
From Steam Plant
A combustion plant based on wood chips consists of a scraper unit, which is sensibly located near the storage. 3 horizontal scrapers are positioned in the storage area which feed the chips to a sunken auger at the end of the scraper system. This auger is monitored by a photo cell. Whenever the auger is not filled, hydraulic cylinders will activate the scraper unit, and continue until the auger is refilled. The wood chips are transported through an inclined auger directly to a cell sluice to be fed via another auger into the combustion hearth or a step grill. Whether to use a hearth or grill depends on the condition of the chips, particularly regarding water content. HEB columns are moulded at the end of the scraper unit on which we build a plank wall over the lateral auger. The auger and the hydraulic cylinder mountings are also moulded.
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The steam boilers are delivered in a number of sta...
The steam boilers are delivered in a number of standard sizes. When calculating steam output, the boiler’s efficient output in kW is multiplied by factor 1.56 to get the boiler’s steam output in kg/h. As an example, an 800 kW boiler will produce 1,250 kg steam per hour.
The plants are delivered for various steam pressures spanning from 0,9 to 16 bars.
When the boiler “calls” for fuel the feed procedure is activated, i.e. the scraper unit and feeding augers will start. The scraper unit will now provide the boiler with the appropriate amount of wood chips to accommodate the pre-installed boiler effect. The amount of wood chips is controlled by an oxygen gauge, which constantly monitors the oxygen percentage in the flue gas.
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