JPS571436A - Continuously baking method for particulate in gas stream by shaft furnace - Google Patents

Continuously baking method for particulate in gas stream by shaft furnace

Info

Publication number
JPS571436A
JPS571436A JP7552280A JP7552280A JPS571436A JP S571436 A JPS571436 A JP S571436A JP 7552280 A JP7552280 A JP 7552280A JP 7552280 A JP7552280 A JP 7552280A JP S571436 A JPS571436 A JP S571436A
Authority
JP
Japan
Prior art keywords
particulate
gas stream
layer
mixing
baked
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.)
Granted
Application number
JP7552280A
Other languages
Japanese (ja)
Other versions
JPS5911334B2 (en
Inventor
Morimasa Takesue
Hiroyasu Otsuka
Hiroyuki Yanagihara
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.)
Nittetsu Mining Co Ltd
Original Assignee
Nittetsu Mining Co Ltd
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 Nittetsu Mining Co Ltd filed Critical Nittetsu Mining Co Ltd
Priority to JP7552280A priority Critical patent/JPS5911334B2/en
Priority to DE3152041T priority patent/DE3152041C2/en
Priority to PCT/JP1981/000121 priority patent/WO1981003437A1/en
Priority to GB8211026A priority patent/GB2093172B/en
Priority to US06/339,452 priority patent/US4427372A/en
Priority to EP81901505A priority patent/EP0059757B1/en
Publication of JPS571436A publication Critical patent/JPS571436A/en
Publication of JPS5911334B2 publication Critical patent/JPS5911334B2/en
Expired legal-status Critical Current

Links

Landscapes

  • Devices And Processes Conducted In The Presence Of Fluids And Solid Particles (AREA)
  • Crucibles And Fluidized-Bed Furnaces (AREA)
  • Feeding, Discharge, Calcimining, Fusing, And Gas-Generation Devices (AREA)

Abstract

PURPOSE: To continuously bake particulate easily fusible at a high temp. in a gas stream in good thermal efficiency by a method wherein a dense mixing layer and a dilute mixing layer are continuously formed in a shaft furnace with a hollow tower structure and the particulate is baked by providing a temp. gradient as well as the baked particulate is dropped and discharged therefrom.
CONSTITUTION: A precipitating layer 11 of a particulate is provided to an upper part of the shaft furnace 1 with a hollow tower structure and, under said layer, a dense mixing layer 4 with a slow flow speed of a raised gas stream and a dilute mixing layer 5 with a high flow speed are continuously formed. When a temp. gradient is provided between both mixing layers 4, 5 to bake said particulate, a gas temp. discharged from both mixing layers 4, 5 is lowered and a consumption amount of a fuel is reduced. Further, by presenting said upper precipitating layer 11, a flow speed in both mixing layers 4, 5 is made fast. The baked particulate is dropped by breaking a balance of a raising gas stream from a lower part of the furnace and a staying amount of the particulate in the mixing layers 4. 5. Said baked particulate is continuously discharged from a discharge port 8 of a furnace bottom part while suspended and floated in the raising gas stream.
COPYRIGHT: (C)1982,JPO&Japio
JP7552280A 1980-06-06 1980-06-06 Continuous airflow firing method for powder and granular materials using a vertical furnace Expired JPS5911334B2 (en)

Priority Applications (6)

Application Number Priority Date Filing Date Title
JP7552280A JPS5911334B2 (en) 1980-06-06 1980-06-06 Continuous airflow firing method for powder and granular materials using a vertical furnace
DE3152041T DE3152041C2 (en) 1980-06-06 1981-06-01 Method and apparatus for the continuous burning of particles placed in the top of a furnace
PCT/JP1981/000121 WO1981003437A1 (en) 1980-06-06 1981-06-01 Method and apparatus for continuously burning particles in air stream in a vertical furnace
GB8211026A GB2093172B (en) 1980-06-06 1981-06-01 Method and apparatus for continuously burning particles in air stream in a vertical furnace
US06/339,452 US4427372A (en) 1980-06-06 1981-06-01 Method and apparatus for continuously burning particles in air stream in a vertical furnace
EP81901505A EP0059757B1 (en) 1980-06-06 1981-06-01 Apparatus for continuously burning particles in air stream in a vertical furnace

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP7552280A JPS5911334B2 (en) 1980-06-06 1980-06-06 Continuous airflow firing method for powder and granular materials using a vertical furnace

Publications (2)

Publication Number Publication Date
JPS571436A true JPS571436A (en) 1982-01-06
JPS5911334B2 JPS5911334B2 (en) 1984-03-14

Family

ID=13578641

Family Applications (1)

Application Number Title Priority Date Filing Date
JP7552280A Expired JPS5911334B2 (en) 1980-06-06 1980-06-06 Continuous airflow firing method for powder and granular materials using a vertical furnace

Country Status (1)

Country Link
JP (1) JPS5911334B2 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102014002476A1 (en) 2013-02-25 2014-08-28 Aisan Kogyo Kabushiki Kaisha ELECTROPUMP
JP2023535539A (en) * 2020-08-21 2023-08-18 ビンダー・プルス・コンパニー・アクチェンゲゼルシャフト Apparatus for producing expanded granules

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61155934U (en) * 1985-03-20 1986-09-27

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102014002476A1 (en) 2013-02-25 2014-08-28 Aisan Kogyo Kabushiki Kaisha ELECTROPUMP
JP2023535539A (en) * 2020-08-21 2023-08-18 ビンダー・プルス・コンパニー・アクチェンゲゼルシャフト Apparatus for producing expanded granules
US11859905B2 (en) 2020-08-21 2024-01-02 Omya International Ag Device for producing expanded granulated material

Also Published As

Publication number Publication date
JPS5911334B2 (en) 1984-03-14

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