PRESSURIZED TANK, AND DEVICE AND METHOD FOR FEEDING POWDER TO TRANSPORT PIPE

Title:

PRESSURIZED TANK, AND DEVICE AND METHOD FOR FEEDING POWDER TO TRANSPORT PIPE

Document Type and Number:

WIPO Patent Application WO/2015/136724

Kind Code:

A1

Abstract:

Provided is a pressurized tank for which the residual pressure of a transport pipe does not leak to the pressurized tank side. A pressurized tank (A), used in a device (B) to intermittently feed a prescribed amount of powder to a transport pipe (7) in order to plug transport powder via compressed air using the transport pipe (7), comprises: a first pressurized chamber (6) that forms a pressure vessel structure and has a funnel-shaped upper partitioning member (3) having an opening in the center portion in the top and a funnel-shaped lower partitioning member (4) having an opening in the center portion in the bottom; a first check valve (9) that is disposed below the opening of the upper partitioning member (3) of the first pressurized chamber (6) so as to be vertically movable and that can close the opening of the upper partitioning member (3) by being raised by way of compressed air; a second check valve (10) that is disposed below the opening of the lower partitioning member (4) of the first pressurized chamber (6) so as to be vertically movable and that can close the opening of the lower partitioning member (4) by being raised by way of compressed air; and an elastic body (24) that biases the second check valve (10) upward.

Inventors:

AOKI YUKINORI (JP)

Application Number:

PCT/JP2014/068989

Publication Date:

September 17, 2015

Filing Date:

July 17, 2014

Export Citation:

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Assignee:

SINTOKOGIO LTD (JP)

International Classes:

B65G53/36; B65G53/06; B65G53/46

Domestic Patent References:

WO2007139106A1

2007-12-06

Foreign References:

DE3528301A1	1987-02-19
JP2006104826A	2006-04-20

Other References: