公开(公告)号：US20210364339A1

公开(公告)日：2021-11-25

申请号：US16976561

申请日：2019-04-18

Applicant: YOSHIKAWA CORPORATION

Inventor： Osamu YOSHIKAWA

IPC: G01G13/08 ,  G01G13/24 ,  B65G65/48 ,  B65D88/68

Abstract: In a batch weighing/supply device for a raw material such as a granular material, a primary height adjustable scraper 17 that reduces the quantity of conveyed raw material when lowered is provided on an upstream side of a discharge port 6 in an annular passage 5, a secondary height adjustable scraper 19 that further reduces the quantity of conveyed raw material, after the quantity has been reduced by lowering the primary height adjustable scraper, is provided on a downstream side of the primary height adjustable scraper and directly adjacent to the discharge port on the upstream side thereof, control means 37 is provided to reduce the rotation speed of rotary blades 8 and 10 to a first speed, which is lower than a normal speed, when the primary height adjustable scraper is lowered and reduce the rotation speed of the rotary blades to a second speed, which is lower than the first speed, when the secondary height adjustable scraper is lowered, and a sliding gate 24 capable of opening and closing a raw material drop-down path is provided in a chute unit provided under the discharge port.

公开(公告)号：US20180194558A1

公开(公告)日：2018-07-12

申请号：US15744257

申请日：2016-11-18

Applicant: YOSHIKAWA CORPORATION

Inventor： Osamu YOSHIKAWA

IPC: B65G11/20 ,  B65D88/70 ,  B01D21/01 ,  B65G65/40 ,  B65D88/26 ,  B65G11/16

CPC classification number: B65G11/20 ,  B01D21/01 ,  B65D88/26 ,  B65D88/70 ,  B65G11/02 ,  B65G11/16 ,  B65G65/40 ,  B65G65/4836 ,  B65G69/20 ,  C02F1/52 ,  C02F1/5281

Abstract: Provided is a dew condensation prevention device for a discharge chute. A tip end portion of the discharge chute has inverted truncated cone-shaped internal and external chutes, a space is provided between an outer surface of the internal chute and an inner surface of the external chute, and a first air discharge port that communicates with the space is provided between respective lower ends of the two chutes. A cylindrical portion having an air reservoir in the interior thereof is provided to surround an outer peripheral surface of the external chute, and by providing an opening between an inner peripheral edge of a lower surface of the cylindrical portion and the outer peripheral surface of the external chute, a second air discharge port that communicates with the air reservoir is provided. Air input pipes for introduction of dry air are connected to the external chute and the cylindrical portion, respectively.