JPS6467266A - Vertical grinder of rotary classification type - Google Patents

Vertical grinder of rotary classification type

Info

Publication number
JPS6467266A
JPS6467266A JP22301987A JP22301987A JPS6467266A JP S6467266 A JPS6467266 A JP S6467266A JP 22301987 A JP22301987 A JP 22301987A JP 22301987 A JP22301987 A JP 22301987A JP S6467266 A JPS6467266 A JP S6467266A
Authority
JP
Japan
Prior art keywords
pulverizing rollers
classifying machine
central hole
plural
casing
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
JP22301987A
Other languages
Japanese (ja)
Inventor
Yoshinori Taoka
Fumio Koda
Tadashi Hasegawa
Hiroaki Kanemoto
Kazunori Shoji
Nobuyasu Meguri
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Mitsubishi Power Ltd
Original Assignee
Babcock Hitachi KK
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Babcock Hitachi KK filed Critical Babcock Hitachi KK
Priority to JP22301987A priority Critical patent/JPS6467266A/en
Publication of JPS6467266A publication Critical patent/JPS6467266A/en
Pending legal-status Critical Current

Links

Landscapes

  • Crushing And Grinding (AREA)
  • Disintegrating Or Milling (AREA)

Abstract

PURPOSE: To save the driving power of a force draft fan by disposing a conical plate having a funnel-shaped slope bored with plural pieces of circumferential holes and a central hole between a rotary type classifying machine and pulverizing rollers and disposing a wall plate between the pulverizing rollers and a casing. CONSTITUTION: The cylindrical casing 1 is internally provided with the classifying machine 8 which rotates around a first perpendicular shaft, a turn table 2 which rotates around a second perpendicular shaft below the classifying machine 8 and the plural pulverizing rollers 3 which roll on the table 2. The conical plate 11 having a downward grade heading toward the center is disposed in the space partitioning the classifying machine 8 and the pulverizing rollers 3. The bottom of the conical plate 11 is provided with the central hole 20 and is provided with the circumferential holes 12 with plural weirs 13 around the central hole 20. The outer side of the pulverizing rollers 3 is provided with a wall plate 17 overhanging from the casing 1 and the spacing between the wall plate 17 and the pulverizing rollers 3 is made adjustable. Consequently, the differential pressure of the mill is reduced and a contribution may be made to the saving of the driving power of the forced draft fan.
JP22301987A 1987-09-08 1987-09-08 Vertical grinder of rotary classification type Pending JPS6467266A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP22301987A JPS6467266A (en) 1987-09-08 1987-09-08 Vertical grinder of rotary classification type

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP22301987A JPS6467266A (en) 1987-09-08 1987-09-08 Vertical grinder of rotary classification type

Publications (1)

Publication Number Publication Date
JPS6467266A true JPS6467266A (en) 1989-03-13

Family

ID=16791558

Family Applications (1)

Application Number Title Priority Date Filing Date
JP22301987A Pending JPS6467266A (en) 1987-09-08 1987-09-08 Vertical grinder of rotary classification type

Country Status (1)

Country Link
JP (1) JPS6467266A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2009297597A (en) * 2008-06-10 2009-12-24 Ihi Corp Vertical roller mill
GB2484333A (en) * 2010-10-07 2012-04-11 William Graham Bell Method of converting the body of a grinding mill
WO2017138294A1 (en) * 2016-02-09 2017-08-17 三菱日立パワーシステムズ株式会社 Crushing device and pulverized coal-fired boiler
JP2021130075A (en) * 2020-02-18 2021-09-09 株式会社Ihi Vertical roller mill

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2009297597A (en) * 2008-06-10 2009-12-24 Ihi Corp Vertical roller mill
GB2484333A (en) * 2010-10-07 2012-04-11 William Graham Bell Method of converting the body of a grinding mill
WO2017138294A1 (en) * 2016-02-09 2017-08-17 三菱日立パワーシステムズ株式会社 Crushing device and pulverized coal-fired boiler
JP2021130075A (en) * 2020-02-18 2021-09-09 株式会社Ihi Vertical roller mill

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