Head for high pressure homogeniser for the treatment of products with solids and fibres

摘要

A high pressure homogenizer provided with head for the treatment of products with solids and fibers comprises a block defining a passage for the product from an intake area to a delivery area, a piston movable axially with reciprocating motion in the block to pump the product in said passage, intake and delivery valves positioned internally to the block and operatively active on said passage to open it/close as a function of a motion of the products in the passage. The passage is positioned in the block in position of non-interference with the motion of the piston and the intake and delivery valves have no springs and are operatively inserted in said passage in intermediate position between said intake and delivery areas, to favor the sliding of the products and to prevent the accumulation of substances that are sensitive to shear effects contained in the products themselves.

主权项

1. Head (1) for a high pressure homogeniser for pumping and pressurizing products containing solids and fibres, comprising:
a block (2) defining a passage (3) for the products from an intake area (4) to a delivery area (5); a piston (6) movable axially in the block (2) with reciprocating motion, to pump the products in said passage (3), from the intake area (4) to the delivery area (5); intake (7) and delivery (8) valves positioned internally to the block (2) and operatively active on said passage (3) to open it/close it as a function of a motion of the products in the passage,characterised in that, in combination:
said passage (3) is a straight passage free of obstacles (a) positioned in the block (2) in position of non interference with the motion of the piston (6) and (b) positioned in the block (2) in a direction rectilinear and orthogonal to the axis of the piston (6); the intake (7) and delivery (8) valves are operatively inserted in said passage (3) in intermediate position between said intake (4) and delivery (5) area; a frontal flange (14) is removably coupled to the block (2) for accessing the passage (3) and a cylinder (12) for the sliding of the piston (6), the cylinder (12) having a lateral surface, the lateral surface of the cylinder (12) adjacent the piston (6) being defined by the block (2); a sealing member (11) interacting with the piston (6) and fastened to the block (2) externally relative to the cylinder (12), said sealing member (11) housing a dynamic gasket (13) which is located externally to the block (2) relative to the cylinder (12).