Heat exchange – With impeller or conveyor moving exchange material
Patent
1977-09-20
1980-02-26
Scott, Samuel
Heat exchange
With impeller or conveyor moving exchange material
164432, 164433, B22D 2702, F28F 2506
Patent
active
041901037
ABSTRACT:
For supporting and cooling the reverse surfaces of belts in apparatus for continuously casting metal strip between such belts, means enclosing the reverse surface of a belt includes a multiplicity of guiding faces that are distributed closely both crosswise and lengthwise of the belt to define an intended belt path, and that have nozzle openings through which liquid coolant is projected against the belt, rapidly flowing out in a layer over the guiding face and being withdrawn at localities close to all of the guiding faces. The belt, which may be forced toward the faces to stabilize it in its desired path, thus rests on a layer of rapidly moving liquid coolant, which affords efficient heat removal and an essentially complete liquid bearing, such apparatus and procedure being also deemed applicable to cooling other surfaces. The high velocity coolant layer can be extended around part of the curved path followed by the belts returning to enter the mold space; thus or otherwise a liquid bearing can be provided along this return belt path approaching the mold entrance, avoiding large pulleys that interfere with the use of effective cooling structure there. The guide-faced nozzle elements along the mold path can be individually mounted and limit-loaded toward the belt so as to yield to local excess of outward force by the belt, for instance as caused by solidified metal.
REFERENCES:
patent: 3250315 (1966-05-01), Osborne et al.
patent: 3331429 (1967-07-01), Harrison et al.
patent: 3654989 (1972-04-01), Meier et al.
patent: 3732917 (1973-05-01), Deubel
patent: 4002197 (1977-01-01), Hazelett et al.
Sivilotti Olivo G.
Steer David E.
Stock Thomas A. C.
Alcan Research and Development Limited
Scott Samuel
Streule, Jr. Theophil W.
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