JPS5760238A - Dust explosion tester - Google Patents

Dust explosion tester

Info

Publication number
JPS5760238A
JPS5760238A JP13609380A JP13609380A JPS5760238A JP S5760238 A JPS5760238 A JP S5760238A JP 13609380 A JP13609380 A JP 13609380A JP 13609380 A JP13609380 A JP 13609380A JP S5760238 A JPS5760238 A JP S5760238A
Authority
JP
Japan
Prior art keywords
explosion
cylinder
dust
turbulance
sample
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
JP13609380A
Other languages
Japanese (ja)
Inventor
Nobuyoshi Tanaka
Toshiaki Yamagata
Kotaro Morimoto
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.)
Kobe Steel Ltd
Original Assignee
Kobe Steel 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 Kobe Steel Ltd filed Critical Kobe Steel Ltd
Priority to JP13609380A priority Critical patent/JPS5760238A/en
Publication of JPS5760238A publication Critical patent/JPS5760238A/en
Pending legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
    • G01L5/00—Apparatus for, or methods of, measuring force, work, mechanical power, or torque, specially adapted for specific purposes
    • G01L5/14—Apparatus for, or methods of, measuring force, work, mechanical power, or torque, specially adapted for specific purposes for measuring the force of explosions; for measuring the energy of projectiles

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Force Measurement Appropriate To Specific Purposes (AREA)

Abstract

PURPOSE:To improve the accuracy in the measurement of explosion concentration with an even cloud of dust by forming a turbulance in a stream accompanying a sample dust by means of a turbulance grid provided between a sample tray and an explosion cylinder in a Hartmann's explosion tester. CONSTITUTION:A body 1 has a jet hole 3 at the bottom thereof communicating to a compression air feeder 2 while an explosion cylinder 8 is screwed down onto a sample tray 5 with a roughly semispherical concave. A turbulance grid 10 is provided at the bottom of the explosion cylinder 8 and an ignition electrode 6 is provided at the center thereof with a filter paper 7 arranged at the upper end thereof. In operation, a sample is placed into the sample tray 5 and the explosion cylinder is locked. A stop valve 22 is opened and a compressed air is introduced in an air reservoir 24 from an air cylinder 23. Then, a valve 26 is opened and a cloud of dust is in the cylinder and exploded ignited with an electrode 6 after a cartain time. This creates an even cloud of dust thereby enabling the measurement of the explosion concentration easily at a high accuracy.
JP13609380A 1980-09-29 1980-09-29 Dust explosion tester Pending JPS5760238A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP13609380A JPS5760238A (en) 1980-09-29 1980-09-29 Dust explosion tester

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP13609380A JPS5760238A (en) 1980-09-29 1980-09-29 Dust explosion tester

Publications (1)

Publication Number Publication Date
JPS5760238A true JPS5760238A (en) 1982-04-12

Family

ID=15167090

Family Applications (1)

Application Number Title Priority Date Filing Date
JP13609380A Pending JPS5760238A (en) 1980-09-29 1980-09-29 Dust explosion tester

Country Status (1)

Country Link
JP (1) JPS5760238A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100434651B1 (en) * 2002-05-31 2004-06-12 김두환 A formed equipment of uniform dust cloud for a dust explosion test and a method thereof
CN106290468A (en) * 2016-09-05 2017-01-04 安徽理工大学 A kind of Jiao Lian lane, colliery net gas of simulating repeats the test method of blast

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100434651B1 (en) * 2002-05-31 2004-06-12 김두환 A formed equipment of uniform dust cloud for a dust explosion test and a method thereof
CN106290468A (en) * 2016-09-05 2017-01-04 安徽理工大学 A kind of Jiao Lian lane, colliery net gas of simulating repeats the test method of blast
CN106290468B (en) * 2016-09-05 2018-10-12 安徽理工大学 A kind of lanes simulation coal mine Jiao Lian net gas repeats the test method of explosion

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