Method and apparatus for the loss-free introduction of binding a

Details Method and apparatus for the loss-free introduction of binding a Method and apparatus for the loss-free introduction of binding a

1986-04-08

1987-09-15

Lusignan, Michael R.

Coating processes

Particles, flakes, or granules coated or encapsulated

Inorganic base

65 44, 118303, 156 628, 264112, B05D 700, C03B 3704

Patent

active

046939130

ABSTRACT:
The invention relates to the manufacture of mineral fiber products or similar fibrous materials, in which fleece formation occurs in a continuous process in a fiber collecting chamber and in which, in order to obtain specific strength characteristics, there are added binding agents. According to the invention, and in contrast to the known methods, a thin fiber fleece is formed at first without addition of a binding agent in a suction chamber and is then transported into a subsequent spraying and collecting chamber which is completely separated from the suction chamber. In the spraying and collecting chamber, the fibers of the thin fleece, after leaving the suction chamber, freely fall downwardly onto a collecting belt, where they accumulate into a crude fiber fleece for further processing. During the free fall, the fibers are sprayed with a binding agent added in optimum quality, mixture and dosaging. Excess binding agent is collected under the collecting belt and is recycled to the manufacturing process after being worked up.

REFERENCES:
patent: 3331669 (1967-07-01), Sinclair
patent: 3819441 (1974-06-01), Fargo et al.
patent: 4463048 (1984-07-01), Dickson et al.

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