Bleach liquor recovery system
First Claim
1. A bleach liquor recovery system for a commercial bleaching apparatus, comprising:
- (a) a bleaching tank, including a water inlet and a drain outlet, for bleaching loads of textile fabric items with a predetermined batch volume of bleach liquor;
(b) a bleach liquor supply system for providing fresh bleach liquor to said bleaching tank, said bleach liquor supply system comprising;
(i) a chemical mixing system, including a water inlet and connected to a bleach liquor chemical source, for generating the fresh bleach liquor and (ii) a bleach liquor injection line for delivering the fresh bleach liquor from said chemical mixing system to said bleaching tank;
(c) a bleach liquor recirculation system connected to said bleaching tank for reclaiming at least a portion of the bleach liquor from said bleaching tank after bleaching a load of textile fabric items and for recycling the reclaimed bleach liquor into successive loads of textile fabric items in said bleaching tank; and
(d) a control system connected to said bleach liquor supply system and said bleach liquor recirculation system for controlling introduction of the fresh bleach liquor and the reclaimed bleach liquor into said bleaching tank.
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Accused Products
Abstract
A bleach liquor recovery system for a commercial bleaching apparatus. The recovery system includes a bleaching tank for bleaching loads of textile fabric items with a predetermined batch volume of bleach liquor and a bleach liquor supply system for providing fresh bleach liquor to the bleaching tank. The bleach liquor supply system includes a chemical mixing system for generating the fresh bleach liquor and a bleach liquor injection line for delivering the fresh bleach liquor from the chemical mixing system to the bleaching tank. A bleach liquor recirculation system is connected to the bleaching tank for reclaiming at least a portion of the bleach liquor from the bleaching tank after bleaching a load of textile fabric items and for recycling the reclaimed bleach liquor into successive loads of textile fabric items in the bleaching tank. In the preferred embodiment, a collection tank stores the reclaimed bleach liquor between the successive loads of textile fabric items. A control system is connected to the bleach liquor supply system and the bleach liquor recirculation system for controlling introduction of the fresh bleach liquor and the reclaimed bleach liquor into the bleaching tank.
20 Citations
50 Claims
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1. A bleach liquor recovery system for a commercial bleaching apparatus, comprising:
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(a) a bleaching tank, including a water inlet and a drain outlet, for bleaching loads of textile fabric items with a predetermined batch volume of bleach liquor; (b) a bleach liquor supply system for providing fresh bleach liquor to said bleaching tank, said bleach liquor supply system comprising;
(i) a chemical mixing system, including a water inlet and connected to a bleach liquor chemical source, for generating the fresh bleach liquor and (ii) a bleach liquor injection line for delivering the fresh bleach liquor from said chemical mixing system to said bleaching tank;(c) a bleach liquor recirculation system connected to said bleaching tank for reclaiming at least a portion of the bleach liquor from said bleaching tank after bleaching a load of textile fabric items and for recycling the reclaimed bleach liquor into successive loads of textile fabric items in said bleaching tank; and (d) a control system connected to said bleach liquor supply system and said bleach liquor recirculation system for controlling introduction of the fresh bleach liquor and the reclaimed bleach liquor into said bleaching tank. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20)
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21. A control system for a bleach liquor recovery system for a commercial bleaching apparatus having a bleaching tank for bleaching successive loads of textile fabric items with a predetermined batch volume of bleach liquor;
- a bleach liquor supply system, which includes a chemical mixing system for generating fresh bleach liquor from water and bleach liquor chemicals, for supplying the fresh bleach liquor to the bleaching tank; and
a bleach liquor recirculation system for reclaiming at least a portion of the bleach liquor from the bleaching tank, storing the reclaimed bleach liquor in a collection tank, and recycling the reclaimed bleach liquor back into the bleaching tank;
said control system comprising;(a) means connected to said bleach liquor recirculation system for determining the volume of the reclaimed bleach liquor; (b) means connected to said bleach liquor supply system for controlling the supply of the fresh bleach liquor from the bleach liquor supply system into the bleaching tank in accordance with the volume of the reclaimed bleach liquor; and (c) means connected to the chemical mixing system for controlling the mixing of the water and bleach liquor chemicals to generate the fresh bleach liquor. - View Dependent Claims (22, 23, 24, 25, 26)
- a bleach liquor supply system, which includes a chemical mixing system for generating fresh bleach liquor from water and bleach liquor chemicals, for supplying the fresh bleach liquor to the bleaching tank; and
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27. A bleach liquor recovery system for a commercial bleaching apparatus, comprising:
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(a) a bleaching tank, including a water inlet and a drain outlet, for bleaching loads of textile fabric items with a predetermined batch volume of bleach liquor; (b) a bleach liquor supply system for providing fresh bleach liquor to said bleaching tank, said-bleach liquor supply system comprising;
(i) a chemical mixing system, including a water inlet and connected to a bleach liquor chemical source, for generating the fresh bleach liquor and (ii) a bleach liquor injection line for delivering the fresh bleach liquor from said chemical mixing system to said bleaching tank;(c) a bleach liquor recirculation system connected to said bleaching tank for reclaiming at least a portion of the bleach liquor from said bleaching tank after bleaching a load of textile fabric items and for recycling the reclaimed bleach liquor into successive loads of textile fabric items in said bleaching tank; (d) a collection tank for storing the reclaimed bleach liquor between the successive loads of textile fabric items; and (e) a control system connected to said bleach liquor supply system and said bleach liquor recirculation system for controlling introduction of the fresh bleach liquor and the reclaimed bleach liquor into said bleaching tank;
said control system including;
(i) means connected to said bleach liquor recirculation system for determining the volume of the reclaimed bleach liquor;
(ii) means connected to said bleach liquor supply system for controlling the supply of the fresh bleach liquor from the bleach liquor supply system into the bleaching tank in accordance with the volume of the reclaimed bleach liquor; and
(iii) means connected to the chemical mixing system for controlling the mixing of the water and bleach liquor chemicals to generate the fresh bleach liquor. - View Dependent Claims (28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50)
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Specification