Hot air gypsum powder production line

Working process

Gypsum ore-feed-crush-elevator-mill-heat-dust removing-storage

Heating process
We use Calcining furnace (High-voltage electrostatic precipitator)

Calcined gypsum powder equipment - calcinng furnace, mainly used in the Adsorbed Water content less than 5% of natural gypsum or chemical gypsum powder powder into a semi-water gypsum, is a fluid application of calcined gypsum of high technology equipment. Domestic heat consumption indicators of calcining furnace for the 7.7 × 105KJ / t building gypsum

1) technical data:

Calcining furnace cross section size: 2600mm× 2200mm

Roots blower: ZLSR200-45KW, air pressure: 39.2Kpa, volume: 38.66m3/min

2) The structural characteristics of equipment and working principle:
Fluidized bed boiler furnace of rectangular containers, at the bottom of a porous gas distribution plate, and cloth bellows connection. Furnace body has a vertical partition, will be divided into the main furnace, furnace paid in two parts, two parts to install a lot of heat inside the tube. Points with the upper furnace bellows, connecting with the furnace.

Normal working hours in the oven filled with powder, furnace through the gas distribution plate at the bottom of a small amount of air insufflation to achieve fluidization powder. Heat (steam or hot oil is contained) by heating the heat transfer tube to the wall materials. Bed material as a result of rapid mixed layer, so that almost the whole bed at the same temperature, but the bed immediately with a large number of heat and some Central Plains gypsum powder mixed to achieve the same temperature (140-150). This temperature in the dehydration of gypsum into a semi-heated water temperature range of gypsum. Most of the main furnace gypsum plaster into a semi-aquatic. Materials into the furnace to pay, the temperature rapidly increased to 155 ~ 165, all of the remaining gypsum plaster into a semi-aquatic, and a small amount of gypsum to the water into III. Then pay the hearth material layer from the interface material overflow.

Boiling furnace is continuous production equipment, in the production of smooth; The entire bed has always been to maintain a dynamic balance of material and heat