Title:
METHOD FOR DRYING MATERIAL BEING PROCESSED, AND HORIZONTAL ROTARY DRYER
Document Type and Number:
WIPO Patent Application WO/2015/186666
Kind Code:
A1
Abstract:
[Problem]
To provide a method for drying a material being processed, and a horizontal rotary dryer, with which the drying performance of the dryer can be improved, a large volume of the material being processed can be processed easily, and the size of the dryer can be reduced.
[Solution]
A method for drying a material being processed by using a horizontal rotary dryer equipped with a rotary tube, which is capable of rotating around its axial center and has a supply port at one end for the material being processed and a discharge port at the other end for the material being processed, and a group of heating pipes which are provided inside the rotary tube, and in which a heating medium circulates, with the material being processed being scooped up in the direction of rotation by the group of heating pipes in conjunction with the rotation of the rotary tube, and the material being processed being indirectly heated and dried by the group of heating pipes as the material being processed is supplied from the one end of the rotary tube and discharged from the other end. The material being processed is dried by rotating the rotary tube such that the critical velocity ratio (α), as defined by Equation 1 and Equation 2, is 30% to less than 100%. In the formulas, Vc is the critical velocity (m/s), D is the diameter of the rotary tube (m), α is the critical velocity ratio (%), and V is the rotational velocity (m/s).
Vc = 2.21D1/2 Formula 1
α = V/Vc·100 Formula 2
Inventors:
NAKATA YOICHI (JP)
SATO SUMITO (JP)
SUWA SATOSHI (JP)
WATARAI TOMONORI (JP)
SATO SUMITO (JP)
SUWA SATOSHI (JP)
WATARAI TOMONORI (JP)
Application Number:
PCT/JP2015/065780
Publication Date:
December 10, 2015
Filing Date:
June 01, 2015
Export Citation:
Assignee:
TSUKISHIMA KIKAI CO (JP)
International Classes:
F26B17/32
Foreign References:
| JP2014055687A | 2014-03-27 | |||
| JPS58501245A | 1983-07-28 | |||
| JP2002022363A | 2002-01-23 | |||
| JPH05126468A | 1993-05-21 | |||
| JP2012047361A | 2012-03-08 | |||
| JPH04345687A | 1992-12-01 |
Other References:
See also references of EP 3153805A4
Attorney, Agent or Firm:
NAGAI, YOSHIHISA (JP)
Yoshihisa Nagai (JP)
Yoshihisa Nagai (JP)
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