JPS62126254U

JPS62126254U -

Info

Publication number: JPS62126254U
Application number: JP1252486U
Authority: JP
Priority date: 1986-02-01
Filing date: 1986-02-01
Publication date: 1987-08-11
Also published as: JPH0335383Y2

Description

[Brief explanation of the drawing]

第１図はこの考案にかゝる第１実施例のスロー
ト部の平面図、第２図は第２実施例のスロート部
の部分平面図、第３図は第４実施例の部分平面図
、第４Ａ図はスロート部の一実施例の部分斜視図
、第４Ｂ図は気体通路を変化させた状態を示す第
４Ａ図に対応する平面図、第５図は一次空気量と
ミル出口石炭粒子の粒度の関係を示す線図、第６
図は従来の装置での第９図のスロート部位置ＡＢ
ＣＤに対応するパイライト量の変化を示す線図、
第７図は事業用ボイラの一例について配管系統を
示す図面、第８図はローラ型ミルを模式に示す縦
断面図、第９図は第８図―断面視図である。１……ローラ型ミル、９……粉砕輪、１０……
ローラ、１１……スロート部、１１ａ……気体通
路、１１′……可動邪魔板。 FIG. 1 is a plan view of the throat section of the first embodiment according to this invention, FIG. 2 is a partial plan view of the throat section of the second embodiment, and FIG. 3 is a partial plan view of the fourth embodiment. Fig. 4A is a partial perspective view of an embodiment of the throat section, Fig. 4B is a plan view corresponding to Fig. 4A showing a state in which the gas passage is changed, and Fig. 5 is a diagram showing the primary air amount and the coal particles at the mill outlet. Diagram showing the relationship between particle sizes, No. 6
The figure shows the throat part position AB in Figure 9 for a conventional device.
A diagram showing changes in the amount of pyrite corresponding to CD,
FIG. 7 is a drawing showing a piping system for an example of a commercial boiler, FIG. 8 is a vertical sectional view schematically showing a roller type mill, and FIG. 9 is a sectional view of FIG. 8. 1...Roller type mill, 9...Crushing wheel, 10...
Roller, 11... Throat portion, 11a... Gas passage, 11'... Movable baffle plate.

Claims

[Claims for Utility Model Registration] 1. In a device for crushing materials using a plurality of rollers whose circumferential angular axis positions are set with respect to the axis of the mill body and a rotating crushing wheel, the outer circle of the rollers connected to the mill body A roller type mill characterized in that the cross-sectional area of the throat section passage located on the circumference is gradually increased from an angular position corresponding to the roller axis to a position corresponding to the center of the space between the rollers. 2 Utility Model Registration Scope of Claim 1 In the roller type mill according to claim 1, the gas passage of the throat portion is formed by a plurality of holes located on the outer circumference of the roller, and the cross-sectional area of the holes is successively changed. Something. 3. A roller type mill according to claim 1 of the utility model registration, in which the throat portion is formed by a plurality of arcuate slits having different gas passage cross-sectional areas. 4 Utility Model Registration Scope of Claims In the roller type mill according to claim 1, the gas passage of the throat portion is formed of a plurality of holes having approximately the same cross-sectional area provided on the outer circumference of the roller, and some of the holes are fixed. The gas passage cross-sectional area of each hole is successively changed by covering it with a baffle plate. 5 Utility Model Registration The roller type mill according to claim 3, which is provided with a movable baffle plate that slides along the upper surface of the throat portion. 6. A roller type mill according to any one of claims 2 to 5, which is provided with a movable baffle plate that contacts the lower surface of the throat and slides and rotates about the axis of the mill.