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US 3,957,253 AGranted
Apparatus for aqueous solutions of pure sodium hydrosulfite
AssigneeVirginia Chemicals Inc.
InventorsRobert W. Barton, Joseph A. Cannizzaro, Mearl A. Kise
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Abstract
Apparatus and method are disclosed for continuously handling sodium hydrosulfite for use in textile dyeing including means for receiving the pure dry chemical in semi-bulk returnable containers, for dissolving the same in a caustic solution and for storing the resulting solution in low inventory automatic make-up tanks. The novel resulting solution is stabilized against decomposition and may be metered to specified locations in the textile mill.
Claims7
Apparatus for preparing a solution of two liquids and a powdered solute, comprising:
- A. a dissolving tank;
- B. means disposed in said dissolving tank for mixing any contents thereof;
- C. sources of first and second liquids and a source of powdered solute;
- D. conduit means for admitting a stream of the first liquid into said dissolving tank;
- E. means for injecting a variable weight of the second liquid into said stream of the first liquid in accordance with the weight of the first liquid flowing in said conduit means;
- F. means for admitting to said dissolving tank a variable weight of said powdered solute in accordance with the weight of the first liquid flowing in said conduit means;
- G. means for delivering mixed solution from said dissolving tank to use points;
- and
- H. means for monitoring the flow rate of the first liquid in said conduit means and producing an output proportional thereto.
6 more elements
Dependencies are inferred from the claim text.