Matsui Manufacturing Co., Ltd.

Nosaka Masaaki

Ono Tsutomu

Matsui Osamu

Takino Yorinobu

Nishida Mitsutoshi

Tsutsumi Noriaki

The present invention discloses a method and an apparatus for drying granular materials by submitting them to dielectric heating by means of electromagnetic waves such as microwave, high frequency, etc. The granular materials to be dried are heated to the prescribed temperature with electromagnetic waves under a reduced pressure of a range not producing any glow discharge and then dried to the prescribed moisture percentage while passing through a pressure reducing process of a vacuum of higher degree. An apparatus for it is provided with a reduced pressure drying tank (1) having an electromagnetic wave generator (2), a main drying tank (30) communicated with said reduced pressure drying tank (1), and suction air sources (20), (20') which are provided respectively in the reduced pressure drying tank (1) and the main drying tank (30).

Method and apparatus for drying granular materials

The invention is directed to an apparatus for drying powdered or granular materials comprises a drying tank (1) including a transversely extending drying room (7) adapted to be applied with heating by microwaves, at least one partition (20) defining more than two drying zones in the drying room (7) of the drying tank (1), a rotary shaft (12) disposed in the drying tank (1) in its longitudinal direction to extend through the drying room (7) in a manner of being freely rotatable and agitating blades (30a), (30b) . . . provided on the rotary shaft correspondingly to each drying zone, microwave application units (40) provided for each drying zone, and temperature sensors (50) for each drying zone and corresponding temperature adjusters (51) connected to the respective temperature sensors (50).

Apparatus for drying powdered or granular materials

The present invention is directed to a pipe identifying apparatus in use for a pneumatic force type device for transporting powdered materials, a dryer and the like. The pipe identifying apparatus comprises a plurality of magnetic rings and non-magnetic rings which magnetic rings and non-magnetic rings form specific identifying codes for each of a plurality of pipes and proximity switches provided on the side of receiving part of the pipe and associating with the magnetic rings to form a magnetic circuit, so that the magnetic circuit is closed to generate electric signals between each proximity switches and each of the plurality of magnetic rings and non-magnetic rings, thereby identifying specific connected pipes by means of the generated electric signals.

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Hirakata, Japan

Nosaka Masaaki