JPS5488558A - Method of eliminating bridge in stock material supplying device - Google Patents

Method of eliminating bridge in stock material supplying device

Info

Publication number
JPS5488558A
JPS5488558A JP15477277A JP15477277A JPS5488558A JP S5488558 A JPS5488558 A JP S5488558A JP 15477277 A JP15477277 A JP 15477277A JP 15477277 A JP15477277 A JP 15477277A JP S5488558 A JPS5488558 A JP S5488558A
Authority
JP
Japan
Prior art keywords
bridge
cavity
screw feeder
stock material
eliminate
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
JP15477277A
Other languages
Japanese (ja)
Other versions
JPS6050691B2 (en
Inventor
Hisao Sumino
Naoyoshi Ando
Takaharu Akiyoshi
Shosaku Fujinami
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.)
Ebara Corp
Original Assignee
Ebara Corp
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 Ebara Corp filed Critical Ebara Corp
Priority to JP52154772A priority Critical patent/JPS6050691B2/en
Publication of JPS5488558A publication Critical patent/JPS5488558A/en
Publication of JPS6050691B2 publication Critical patent/JPS6050691B2/en
Expired legal-status Critical Current

Links

Landscapes

  • Air Transport Of Granular Materials (AREA)
  • Filling Or Emptying Of Bunkers, Hoppers, And Tanks (AREA)

Abstract

PURPOSE: To eliminate the bridge of stock material by detecting cavity occurred directly above a screw feeder at the inlet side and blowing hydraulic gas into the material.
CONSTITUTION: A screw feeder having a casing 2, a srew 3, and a drive unit 4 is arranged at the bottom of a hopper 1 for charging stock material. When a dust is engaged in the material to form bridge in the material during operation, a cavity 10 occurs directly below the bridge in the material. This cavity 10 is detected by a cavity detector 7 utilizing ultrasonic wave or photoelectric tube, which produces a signal for opening a valve 9 to allow the nozzle 8 to spray high pressure gas such as air into the material. The screw feeder is sealed at the end. The high pressure gas thus sprayed urges the bridge in the material from below upwardly to thereby destroy the bridge. Then, the valve 9 is closed. Thus, it can safely and repidly eliminate the bridge in the material.
COPYRIGHT: (C)1979,JPO&Japio
JP52154772A 1977-12-22 1977-12-22 Processing of waste such as municipal garbage Expired JPS6050691B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP52154772A JPS6050691B2 (en) 1977-12-22 1977-12-22 Processing of waste such as municipal garbage

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP52154772A JPS6050691B2 (en) 1977-12-22 1977-12-22 Processing of waste such as municipal garbage

Publications (2)

Publication Number Publication Date
JPS5488558A true JPS5488558A (en) 1979-07-13
JPS6050691B2 JPS6050691B2 (en) 1985-11-09

Family

ID=15591550

Family Applications (1)

Application Number Title Priority Date Filing Date
JP52154772A Expired JPS6050691B2 (en) 1977-12-22 1977-12-22 Processing of waste such as municipal garbage

Country Status (1)

Country Link
JP (1) JPS6050691B2 (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5665724A (en) * 1979-10-30 1981-06-03 Agency Of Ind Science & Technol Method and device for supplying raw material
JPS57171836U (en) * 1981-04-22 1982-10-29
JPS5949695U (en) * 1982-09-24 1984-04-02 株式会社竹中工務店 Coal storage silo discharge hopper blockage removal device
CN109703925A (en) * 2018-12-27 2019-05-03 中核四0四有限公司 A kind of fly ash cement material tank blowing bridging device and method

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5433466A (en) * 1977-08-19 1979-03-12 Teijin Seiki Co Ltd Method and apparatus for collasping grain bridge formed in hopper

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5433466A (en) * 1977-08-19 1979-03-12 Teijin Seiki Co Ltd Method and apparatus for collasping grain bridge formed in hopper

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5665724A (en) * 1979-10-30 1981-06-03 Agency Of Ind Science & Technol Method and device for supplying raw material
JPS57171836U (en) * 1981-04-22 1982-10-29
JPS5949695U (en) * 1982-09-24 1984-04-02 株式会社竹中工務店 Coal storage silo discharge hopper blockage removal device
CN109703925A (en) * 2018-12-27 2019-05-03 中核四0四有限公司 A kind of fly ash cement material tank blowing bridging device and method

Also Published As

Publication number Publication date
JPS6050691B2 (en) 1985-11-09

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