Method and apparatus for debagging dust-containing or hazardous materials

A method and apparatus for removing dust-containing or hazardous material from bags includes a vertical bag feeding chute having one or more vertically disposed knife blades fixed (no moving mechanical parts) in the chute to slice open the bag as it falls through the chute. The sliced bag is caught in a downwardly angled perforated basket disposed below the bag feeding chute where an operator operating through a glove box removes solid material from the interior of the sliced bag after most of the bag contents have fallen through the perforated receiving basket and into a mixing tank. The apparatus and method are particularly useful for debagging acrylamide monomer in the production of polyacrylamide homopolymers and copolymers.

Method and apparatus for rapidly dissolving polymers in water

ABSTRACT A method and apparatus for rapidly dissolving particles of dry water soluble polymers or gums in water. A suspension of polymer particles is formed and subjected to conditions of high shear in a particle size reduction apparatus whereby the finely divided particles are forced into solution. Sufficient water is present that heat is dissipated and molecular degradation of the polymer is avoided.

Method and apparatus for debagging dust-containing or hazardous materials

A method and apparatus for removing dust-containing or hazardous material from bags includes a vertical bag feeding chute having one or more vertically disposed knife blades fixed (no moving mechanical parts) in the chute to slice open the bag as it falls through the chute. The sliced bag is caught in a downwardly angled perforated basket disposed below the bag feeding chute where an operator operating through a glove box removes solid material from the interior of the sliced bag after most of the bag contents have fallen through the perforated receiving basket and into a mixing tank. The apparatus and method are particularly useful for debagging acrylamide monomer in the production of polyacrylamide homopolymers and copolymers.

Method of rapidly dissolving polymer gels in water

METHOD OF RAPIDLY DISSOLVING POLYMER GELS IN WATER ABSTRACT A method of rapidly dissolving particles of water soluble polymer gels in water. A suspension of gel particles is formed and subjected to conditions of high shear in a particle size reduction apparatus whereby finely sliced particles are formed and instantly dissolve in water. Sufficient water is present that heat is dissipated and molecular degradation of the polymer is avoided.

Verfahren und vorrichtung zum entleeren von staub oder gefährliche materialien enthaltenden säcken