Abstract:
A slurry distributor 100 for use in a continuous manufacturing process comprises an entry segment 106 defining an inlet opening 102, a shaped duct 112 in fluid communication with the inlet opening 102, and an outlet defining an outlet opening 104 in fluid communication with the shaped duct 112. The shaped duct 112 includes a parabolic guide surface 220 adapted to redirect a flow of slurry moving from the inlet opening 102 through the shaped duct 112 to the outlet opening 104 from an inlet direction to an outlet direction. The duct 112 has a cross sectional flow area that increases in a direction from the inlet opening toward the outlet opening.
Abstract:
A slurry distributor (100) for use in a continuous manufacturing process includes an inlet opening (102) and a shaped duct (112) adapted to receive a flow of slurry provided at the inlet opening (102). The shaped duct (112) has a parabolic guide surface adapted to redirect the flow of slurry. An outlet opening (104) in fluid communication with the shaped duct (112) is adapted to discharge the flow of slurry from the slurry distributor (100).
Abstract:
A slurry distributor (100) for use in a continuous manufacturing process includes an inlet opening (102) and a shaped duct (112) adapted to receive a flow of slurry provided at the inlet opening (102). The shaped duct (112) has a parabolic guide surface adapted to redirect the flow of slurry. An outlet opening (104) in fluid communication with the shaped duct (112) is adapted to discharge the flow of slurry from the slurry distributor (100).
Abstract:
A method and apparatus for providing an evenly mixed additive enhanced gypsum slurry to a web. Calcined gypsum and water are inserted into a mixer (12) through at least one inlet (26,28) of the mixer (12). The contents are agitated to form a slurry. The slurry is passed from an outlet (34) of the mixer (12) into a conduit (38). An additive is introduced into the slurry along a length of the conduit (38) to achieve a flow stream of a slurry/additive mixture. A cross section (60) of the flow stream is expanded in the conduit (38) while not changing direction of the flow stream and a direction of the flow stream is changed while not expanding the cross section (60) of the flow stream and conduit (38), all prior to the flow steam exiting from an outlet (42) of the conduit.
Abstract:
A slurry distribution system can include a feed conduit and a distribution conduit in fluid communication therewith. The feed conduit can include a first feed inlet and a second feed inlet disposed in spaced relationship thereto. The distribution conduit can extend generally along a longitudinal axis and include an entry portion and a distribution outlet in fluid communication therewith. The entry portion is in fluid communication with the first and second feed inlets of the feed conduit. The distribution outlet extends a predetermined distance along a transverse axis, which is substantially perpendicular to the longitudinal axis. The slurry distribution system can be placed in fluid communication with a gypsum slurry mixer adapted to agitate water and calcined gypsum to form an aqueous calcined gypsum slurry.
Abstract:
A panel is provided that includes stucco, water and a dispersant component having dispersing properties and comprising a comb-branched polymer with polyether side chains, naphthalene sulfonate-formaldehyde condensate or melamine sulfonate-formaldehyde condensate. A polycondensation component is also included in the slurry that includes three repeating units. A method of making the gypsum panel includes combining stucco, water and a first dosage of a first dispersant to form a slurry, the first. A second dosage of a second dispersant is added to the slurry. Properties of the gypsum slurry are tested and it is formed into a product. The product sets and properties of the product are identified. The first dosage or the second dosage is changed based on the properties of the slurry or product.