Method and apparatus for dissolving a treating material
First Claim
1. An apparatus for dissolving a chlorine-containing solid treating material to provide a solution into a system to be treated, comprising:
- (a) a container for holding said chlorine-containing solid treating material;
(b) an inlet line for supplying a fluid to said container;
(c) a siphon comprising a siphon tube connected to a point on said container or said inlet line and being a generally inverted U-shape of a predetermined height above the base of said container, but less than the overall height of said container;
said siphon tube constructed to (1) permit said fluid in said container to cyclically rise in said container to said predetermined height while in contact with said treating material, thereby solubilizing at least a portion of said treating material and forming a solution, and (2) then cyclically discharge said solution to empty the container of the solution, wherein the ratio of internal cross-section of the container to the internal cross-sectional area of the syphon tube being 700;
1 or less.
1 Assignment
0 Petitions
Accused Products
Abstract
An apparatus and method for dissolving a chlorine containing treating material such as calcium hypochlorite in which water is fed to a container preferably in the form of a column containing the treating material. The water is caused to cyclically rise in the container to a predetermined height to dissolve a portion of the material and then discharge to a storage container to empty the material containing container. The height at which the water rises within the container, the cross-sectional area of the container and the length of time the liquid is in contact with the material during the cycle is set to produce a solution having a concentration of from between about 2 to about 18% available chlorine at a feed rate of at least about 2 lbs/hr available chlorine. The cyclical action is preferably achieved through the use of a siphon tube connected to the material holding container and through which the fluid in the container is discharged. The ratio of the internal cross-section area of the column to the internal cross-sectional area of the siphon tube is less than 700 and preferably in the range of 500 to 100.
42 Citations
14 Claims
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1. An apparatus for dissolving a chlorine-containing solid treating material to provide a solution into a system to be treated, comprising:
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(a) a container for holding said chlorine-containing solid treating material; (b) an inlet line for supplying a fluid to said container; (c) a siphon comprising a siphon tube connected to a point on said container or said inlet line and being a generally inverted U-shape of a predetermined height above the base of said container, but less than the overall height of said container;
said siphon tube constructed to (1) permit said fluid in said container to cyclically rise in said container to said predetermined height while in contact with said treating material, thereby solubilizing at least a portion of said treating material and forming a solution, and (2) then cyclically discharge said solution to empty the container of the solution, wherein the ratio of internal cross-section of the container to the internal cross-sectional area of the syphon tube being 700;
1 or less. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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8. A method for dissolving a chlorine containing solid soluble treating material to provide a solution for dispensing into a system to be treated comprising:
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(a) providing a container for holding a quantity of treating material; (b) providing a source of fluid to said container; (c) providing a siphon comprising a siphon tube and causing the fluid to cyclically rise in said container to a predetermined height in contact with the treating material contained therein thereby solubilizing at least a portion of said treating material and forming a solution, and then discharging said solution through the siphon tube into a storage container; and (d) selecting the internal cross-sectional area of the container and the internal cross-sectional area of the siphon tube such that the ratio of these container area to the siphon tube area is 700;
1 or less. - View Dependent Claims (9, 10, 11, 12, 13)
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14. A method of dissolving a chlorine containing solid soluble treating material to provide a solution containing available chlorine comprising:
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(a) providing a container for holding said treating material; (b) causing fluid cyclically to flow into said container to contact a portion of said treating material in the container to cause the material to dissolve and then discharge the resulting solution into a storage chamber; and (c) controlling (i) the height of the fluid in the container while in contact with said treating material before the fluid is discharged and (ii) the length of time the fluid remains in contact with the material to thereby provide a solution having a concentration of between about 2 to about 18% available chlorine at a feed rate of at least about 2 pounds per hour available chlorine.
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Specification