Title:
RAW MATERIAL CHARGING DEVICE TO PREHEATER CYCLONE OF CEMENT CALCINATION APPARATUS
Document Type and Number:
Japanese Patent JP2020193116
Kind Code:
A
Abstract:
To disperse cement raw material efficiently in a hot gas flowing through an outlet duct of a preheater cyclone of a cement calcination apparatus to preheat effectively the cement raw material.SOLUTION: A raw material charging device includes a raw material chute 5 connected to an outlet duct 7d of a cyclone 7 and a dispersion plate 1 for dispersing a cement raw material R supplied from the raw material chute, in which: an inclination angle θ2 of the raw material chute is 55° or more and 70° or less; an upper surface of the dispersion plate is formed to be convex vertically upward as a whole, and has a central plane portion 2 that is a vertical plane extending in a length direction of the dispersion plate, is planar symmetric with respect to a vertical plane dividing an area of the upper surface into two equal parts and intersects directly the vertical plane; its width gradually increases as a position in a vertical direction of an intersection line between the vertical plane and the central plane portion becomes lower; an inclination angle θ1 of the central plane portion of the dispersion plate is 20° or more and 40° or less; and a mounting height H of a lower side of the central plane portion of the dispersion plate from a ceiling surface 7e of the preheater cyclone is 0.7 times or more and 1.5 times or less an inner diameter of the outlet duct of the cyclone 7.SELECTED DRAWING: Figure 1
Inventors:
SUZUKI HIDETO
Application Number:
JP2019098380A
Publication Date:
December 03, 2020
Filing Date:
May 27, 2019
Export Citation:
Assignee:
SUZUKI HIDETO
International Classes:
C04B7/43; B01J4/00; F27D3/10; F27D13/00
Domestic Patent References:
| JP6396433B2 | 2018-10-03 | |||
| JP2012214309A | 2012-11-08 | |||
| JP2014062033A | 2014-04-10 |
Attorney, Agent or Firm:
Jun Nakai