All dryer equipments we supply
All dryer equipments we supply
All dryer equipments we supply
A mesh belt dryer for dewatering particle suspensions, comprising:
a continuous horizontal belt having an upper transport flight adapted to carry an aqueous suspension of particles and a return flight disposed below the transport flight;
a filtrate dewatering station disposed at a point below the upper transport flight;
a vacuum pipe disposed below the upper transport flight at the dewatering station, the vacuum pipe extending transversely of the belt, the pipe being provided with a single slot extending the width of the belt;drum dryer.
suction means in communication with the vacuum pipe and adapted to apply vacuum pressure to the slot, the slot being adapted to receive filtrate drawn through the belt at the dewatering station by the suction means;
a press roll disposed above the transport flight at the dewatering station immediately downstream of the slot in the vacuum pipe, the press roll extending fully across the width of the transport flight;
a support bar disposed beneath the transport flight adjacent the dewatering station, the support bar extending fully across the transport flight and being disposed directly underneath the press roll; and
spray dryer, fluid bed dryer.
means to urge the press roll toward the support bar to apply a predetermined amount of pressure to the aqueous suspension on the transport flight at the dewatering station, the amount of pressure being so selected as to create an even film of aqueous suspension over the slot in the vacuum pipe to facilitate extraction of filtrate therefrom.
Referring to the drawings, the
mesh belt dryer of the present invention comprises a stand-alone type frame 10, which makes the apparatus portable so it can be used at remote locations or where there is no available electric power. A continuous horizontal conveyor belt 12, made of porous woven monofilament polyester mesh, is entrained over a drive roller 14 and an idler roller 16, as shown in FIG. 2. Belt 12 is typically sixteen or thirty-two inches wide, depending on the desired size of the dryer, and is typically of 230 mesh, although other mesh openings can be used depending on the product. Belt 12 has an upper transport flight 18, which receives the various slurries and sludges through an intake chute 20 (flow in the direction of arrows 21), and a lower return flight 22, disposed below upper flight 18, and centered by centering rollers 24 mounted on transversely adjustable brackets 26 (see FIG. 3) and vertically adjustable by means of a pivot arm 28 (see FIG. 2).
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