Method of making capsules of dehydrated sludge and apparatus therefor
AssigneeSumitomo Heavy Industries, Ltd.
InventorsToshio Matsuoka, Yasuhito Kougami
Life of this patent
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Abstract
Disclosed is a method of making capsules of dehydrated sludge which can omit conventionally required unit operations, reduce or eliminate the cost of the equipment and power, heat energy and consumables required for operation, and assures simple operation. The method includes the steps of shaping a steel strip into the form of a channel, supplying sludge into the channel formed in the previous step, shaping the channel formed steel strip with the sludge charged therein such that it has practically a circular cross-section to enclose the sludge, pressing and crushing an outer periphery of a steel tube shaped in the previous step to form a constriction, pressing and cutting the constriction and repeating series of the above-described steps.
Claims8
A method of making capsules of dehydrated sludge, said method comprising:
- shaping a steel strip into a channel;
- supplying sludge into the channel formed in the previous step with a sludge extruder;
- shaping the steel strip channel with the sludge charged therein, overlap two edge portions of the steel strip channel with each other to form a substantially circular cross-section tube enclosing the sludge;
- pressing and crushing said steel tube containing said sludge at opposite points on the outer periphery of said tube, while constraining said steel tube between two opposed dies to form a constriction;
- pressing and cutting the constriction;
- and
- repeating the series of said steps.
An apparatus for making capsules of dehydrated sludge, said apparatus comprising:
- a channel forming device for shaping a steel strip into a channel cross-section;
- a sludge supplying device for supplying sludge into the channel;
- a device for overlapping two edge portions of the steel strip channel with the sludge charged therein to form a steel tube;
- two dies for constraining said steel tube from the outside thereof;
- a pressing device for pressing and crushing said steel tube containing said sludge and constrained between said two dies at opposed ends on the outer periphery of said tube to form a constriction;
- and a pressing/cutting device for pressing and cutting said steel tube at said constriction.
Dependencies are inferred from the claim text.