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1 387 424

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IPC

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Application

4123607/02, 1986-07-14

(22)

Actual filing date

1986-07-14

(45)

Published

1994-10-15

(72)

Inventor

Chemikosov M.V.Jarmal' A.A.Chernikov V.S.

METHOD OF MEASURING CARBON DUST AEROMIXTURE FLOW PRESSURE Russian patent published in 1994 - IPC

Abstract SU 1387424 A1

FIELD: ferrous metallurgy. SUBSTANCE: essence of this method resides in continuously feeding gas into chamber 2 of measuring device 3 and preventing filling of open pores of gas-permeable partition by dust particles and to large extent its wear. This method is carried our by measuring pressure of aeromixture having carbon dust concentration from 15-25 kg/m3 and fraction composition of 70 % of 73 microns fraction at gas flow rate of 30-55 m3/h and pressure fluctuations within ± 0,2 MPa, blow-down gas flow rate making up 0,03-0,55 m3/h. Gas-permeable partition is made of porous steel tubes, each measuring 25 mm in diameter, with wall thickness being 3 mm, and 200 mm in length. Measuring error does not exceed 0.25 of instrument measuring error. EFFECT: higher measuring reliability. 2 dwg

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SU 1 387 424 A1

Authors

Chemikosov M.V.

Jarmal' A.A.

Chernikov V.S.

Dates

1994-10-15—Published

1986-07-14—Filed

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