WO2006109839A1

WO2006109839A1 - Container discharging device

Info

Publication number: WO2006109839A1
Application number: PCT/JP2006/307787
Authority: WO
Inventors: Youichi Yamaoka; Masahiro Sato; Yoshiaki Sugiyama; Shigenobu Takayanagi; Takeo Ishiyama; Mamoru Asada
Original assignee: Taisei Corporation; Kyorin Pharmaceutical Co., Ltd.; Akatake Engineering Co., Ltd.
Priority date: 2005-04-08
Filing date: 2006-04-06
Publication date: 2006-10-19
Also published as: JP4819387B2; JP2008050007A

Abstract

A container discharging device capable of quantitatively and continuously taking out a powder and granular material from the outlet of a container by a rather simple structure. The container discharging device comprises a butterfly valve device (10) fitted to the outlet (5) of the container storing the powder and granular material and opening and closing the outlet by rotating a valve stem (8) having a valve plate (6), a valve excitation means (12) vibrating the valve plate and the valve stem of the butterfly valve device, and an air jetting means (14) intermittently jetting air toward the butterfly valve device and the outlet.

Description

Specification

Container discharge device

Technical field

TECHNICAL FIELD The present invention relates to a container discharge device that is provided at a discharge port of a container that stores powder particles and that can take out the stored powder particles quantitatively and continuously with a simple structure.

Background art

Containers, which are containers equipped with a powder inlet and outlet, are widely used as a means for transporting powder, batch weighing, mixing, and storage. There are a wide variety of powdered and granular materials such as pharmaceuticals, foodstuffs, plastics, and building materials.

A typical container consists of a main body with an inlet at the top of a cylindrical vertical mold, an upper lid that is a lid for the inlet, a funnel-shaped bottom with an outlet at the lower end, and an open / close at the outlet And a discharge device having a freely provided valve body. A typical example of the valve body includes a well-known butterfly valve that adjusts the opening of the discharge port by rotating a plate-like valve body inscribed in the discharge port about the axis.

The valve body is formed in a conical shape as an improved discharge device that facilitates the discharge of powder particles by opening and closing the valve body and prevents the powder particles from adhering to and remaining on the valve body part. The bottom surface is in contact with the outlet on the inner side of the container, and the shaft member connected to the valve body is protruded from the top lid through the container, and the shaft member is operated from the outside of the container to operate the outlet. A discharge device that opens and closes has been developed and put into practical use (see, for example, Patent Document 1).

Patent Document 1 Japanese Patent Laid-Open No. 2 0 0 3-5 4 7 5 8

Disclosure of the invention

However, the conventional container discharging apparatus of the form as described above has the following problems that are desired to be improved.

In other words, the well-known butterfly valve has a simple structure consisting of a plate-shaped valve body and a valve shaft that supports the valve body, and is accommodated in a container by rotating the valve shaft and adjusting the opening of the discharge port by the valve body. The supply rate can be controlled by the supply rate which is the discharge rate of the granular material.

However, in general, the granular material has poor fluidity, and if the opening degree of the discharge port is reduced by a plate-shaped valve body in order to slow down the discharging speed, the granular material hardly flows out. Furthermore, since the valve body has a structure that rotates around the valve shaft at the outlet and outlet part, only the granular material in the part of the valve body is discharged, and the granular substance in the container is fixed without being discharged. Prone. In particular, powder with poor fluidity will not flow out just by opening the valve.

On the other hand, in the improved discharge device provided with the conical valve body, the valve body and the shaft member connected thereto move up and down in the container according to the opening and closing of the discharge port, so that the powder particles in the container are agitated. It is easy to control the discharge speed of the granular material from the discharge port.

However, the discharge device provided with the conical valve body needs to be installed in each individual container and is not versatile. Therefore, it is used for comparatively limited applications from the economic aspect. In addition, since the structure of the discharge device is relatively complicated with a conical valve body and shaft member installed in the container, cleaning of the granular material adhering to the container and handling different types of granular material are handled. It is troublesome to clean the inside of the container that is necessary.

The present invention has been made in view of the above-mentioned facts, and its technical problem is that a container discharge device that can take out powder particles quantitatively and continuously from a discharge port of a container with a relatively simple structure. Is to provide.

According to the present invention, as a container discharge device that solves the above technical problem, the discharge port is provided at the discharge port of the container that accommodates the granular material, and the discharge port is opened and closed by rotating the valve shaft with the valve plate attached. A butterfly valve device, valve excitation means for vibrating the valve plate and the valve shaft of the butterfly valve device, and air injection means for intermittently injecting air toward the butterfly valve device and the discharge port, A container discharge device is provided.

Preferably, the valve vibration means is attached to the valve shaft. The air injection means includes a cylindrical portion connected to the discharge port provided with the butterfly valve device, and a plurality of air holes opened on the inner peripheral surface of the cylindrical portion. And an air outlet. The plurality of air injection ports include a valve direction injection port for injecting air toward the valve plate of the butterfly valve device, and a circumferential direction injection port directed substantially in the circumferential direction of the inner peripheral surface. Furthermore, the air injected from the valve direction injection port is injected in the direction in which the axis of the valve shaft extends. Further, the air injection port is provided with a net member made of porous sintered metal. Furthermore, a butterfly valve device is attached to the container outlet and an air injection means is attached to the butterfly valve device.

According to the container discharge device configured in accordance with the present invention, the butterfly valve having a simple structure is used for opening and closing the discharge port, the valve vibration means for vibrating the butterfly valve is provided, and air is injected toward the discharge port. Air injection means is provided. Therefore, the vibration of the valve plate and the blast air can prevent the powder particles from adhering to the valve plate and sticking in the container. With structure, it can be taken out quantitatively, continuously and smoothly.

Brief Description of Drawings

FIG. 1 is a side view of a container equipped with a container discharge device constructed in accordance with the present invention. Figure 2 is an enlarged view of the container discharge device shown in Figure 1.

FIG. 3 is a plan view of the air injection means viewed in the direction of arrows A—A in FIG.

BEST MODE FOR CARRYING OUT THE INVENTION

Hereinafter, a container discharging apparatus constructed according to the present invention will be described in more detail with reference to the accompanying drawings illustrating preferred embodiments.

A description will be given with reference to FIG. 1 which is a side view of the container discharge device attached to the container, and FIG. 2 which is an enlarged detailed view of the container discharge device portion of FIG. The container discharge device indicated as a whole by number 2 is provided at the discharge port 5 at the lower end of the container 4 for storing the granular material, and opens and closes the discharge port 5 by rotating the valve shaft 8 to which the valve plate 6 is attached. Butterfly valve device 1 0, a bipolar plate 1 2 as valve vibration means for vibrating the valve plate 6 and the valve shaft 8 of the butterfly valve device 10, and the butterfly valve device 1 0 connected to the butterfly valve device 1 Air injection means 14 for injecting air intermittently toward 0 and the discharge port 5

The other end of the air injection means 14 is connected via a chute 16 to a measuring container or a feeder (not shown) that measures and supplies the granular material.

The container 4 itself is a well-known container, and is provided with a cylindrical vertical body 4 a whose upper side is opened as an inlet, an upper lid 4 b that closes the inlet, and the outlet 5 at the lower end. A funnel-shaped bottom 4c is provided, and the outer periphery of the bottom 4c is supported by a support frame 4d.

This will be described mainly with reference to FIG. The butterfly valve device 10 includes an upper cylindrical portion 10 a connected to the discharge port 5, a lower cylindrical portion 10 0 b connected to the air injection means 14, and an upper cylindrical portion 10 0 a and a lower cylindrical portion 10. A valve plate support 10 c between b is provided.

An annular flange F is formed at the end of each of the upper cylindrical portion 10 a and the lower flange portion 10 0 b, and the discharge port 5 and the air injection are made by a known annular ferrule joint 18 having a V-shaped cross section. Means 14 are connected to an annular flange F formed on each of the means 4 so as to be freely disassembled.

The valve plate 6 itself is a well-known butterfly valve having a disk shape. Therefore, the description is omitted. The valve shaft 8 to which the valve plate 6 is attached is rotatably attached to the valve plate support portion 10 c around the axis X, and both ends are released outward. One end of the valve shaft 8 (left end in FIG. 2) is connected to a vibrator 12 of the valve vibration means, and the other end (right end in FIG. 2) is connected to valve operation means 20 for rotating the valve shaft.

The vibrator 12 is attached only to the valve shaft 8 by a bracket 2 2 in a screw hole at the end of the valve shaft 8 in a direction perpendicular to the axis X of the valve shaft 8. This vibrator 12 is a well-known one that operates by compressed air. By adjusting the throttle 1 2 a at the end and changing the air pressure, the vibration frequency can be changed, for example, from 5 0 0 0 to 9 0 0 0 It can be adjusted within the range.

Thus, by operating the vibrator 12 and vibrating the valve shaft 8, the valve plate 6 attached to the valve shaft 8 can be vibrated at an arbitrary frequency. The valve operating means 20 is attached to the end of the valve shaft 8 so as to extend in a direction perpendicular to the axis X and to the handle 24 connected to the manual operation handle 24 so that the handle 24 can be driven. Equipped with an electric actuator 26.

The electric actuator 26 is attached to the support frame 4 d (FIG. 1) of the container 4 via the bracket 28. The electric actuator 26 may be a well-known one, and rotates its output shaft at an arbitrary angle by an electric signal from a controller (not shown) to hold its position.

The air injection means 14 will be described with reference to FIG. 3, which is a plan view thereof, together with FIG. The air injection means 14 includes a cylindrical portion 14 a connected to the butterfly valve device 10, and a plurality of air injection ports opened on the inner peripheral surface of the cylindrical portion 14 a. To the valve plate 6 (arrow Z) A pair of valve direction injection ports 14 b and 14 b arranged at 180 ° apart in the circumferential direction for injecting air, and a substantially circumferential direction of the inner circumferential surface (Arrow Y) A pair of circumferential injection ports 14 c and 14 c positioned between the valve direction injection ports 14 b and 14 b for injecting air is provided.

Each of the valve direction injection ports 14 b and 14 b is positioned such that the direction of air to be injected (arrow Z) is the direction in which the axis X of the valve shaft 8 extends (FIG. 3).

Each of the air injection ports 14 b, 14 b, 14 c, and 14 c is provided with a mesh member 14 d joined to the inner peripheral surface of the cylindrical portion 14 a. The mesh member 14 d is formed into a plate shape by porous sintered stainless steel, and allows the spray air to pass therethrough to prevent the backflow of the powder particles.

Each of these air injection ports 14 b, 14 b, 14 c, 14 c is connected to the compressed air source 30 (Fig. 1) by piping 3 2 so that the pressurized air can be freely controlled. Be led.

The operation of the container discharge device 2 as described above will be described.

The container discharge device 2 includes a butterfly valve device 10 having a relatively simple structure for opening and closing the discharge port 5 of the container 4, and is provided with valve vibration means 12 that vibrates the valve plate 6. Air injection means 14 for injecting air toward the discharge port 5 is provided. Therefore, the valve plate 6 is vibrated and the sprayed air is blown to the valve plate 6 and its surroundings, so that the granular material adheres to the valve plate 6 from the small opening to the large opening of the discharge port 5 and in the container 4. It is possible to prevent sticking, and with a relatively simple structure, powder particles can be taken out quantitatively, continuously and smoothly.

When air is sprayed by the air injection means 14, if the powder supply unit connected to the chute 16 is closed, the powder inside the container 4 flows more effectively by the injected air. It can be made.

The vibrator 12 as a valve vibration means is attached only to the valve shaft 8, so that the installation is easy and the discharge device 2 can be combined into a compact.

The air injection means 14 is a plurality of air injection openings opened on the inner peripheral surface of the cylindrical portion 14 a, and a valve direction injection opening 1 that injects air toward the valve plate 6 of the butterfly valve device 10. 4 b and circumferential injection port 1 4 c oriented in the circumferential direction of the inner peripheral surface, so that powder particles adhere to the valve plate 6 and adhere to the container 4 and around the valve plate 6 Can be prevented.

And since the air injected toward the valve plate 6 from the valve direction injection port 14 b is directed in the direction in which the axis X of the valve shaft 8 extends, the air is the opening portion of the valve plate 6 and the discharge port 5. Is effectively injected into the container 4 through.

Furthermore, since each of the air injection ports 14 b and 14 c has a mesh member 14 d made of porous sintered metal, it is possible to effectively stop the powder from flowing into the injection ports. it can.

The container discharge device 2 has a butterfly valve device 10 at the discharge port 5 of the container 4, and an air injection means 14 at the butterfly valve device 10 0, which can be freely attached and detached, for example, with a ferrule joint 18. Since they are attached freely, they can be removed and cleaned easily. This detachable container discharge device 2 includes a conical valve body provided exclusively in the container because the discharge port 5 can be easily attached to and detached from different containers having the same shape. Compared to container discharge devices, it can be used for general purposes and is economical.

Claims

The scope of the claims

1. A butterfly valve device that opens and closes the outlet by rotating a valve shaft with a valve plate installed on the outlet of the container that contains the granular material, and the valve plate of the butterfly valve device. A container discharge device characterized by comprising: a valve vibration means for vibrating the air and an air injection means for injecting air intermittently toward the butterfly valve device and the discharge port.

2. The container discharging device according to claim 1, wherein the valve vibration means is attached to the valve shaft.

3. The air injection means includes a cylindrical portion connected to the discharge port provided with the butterfly valve device, and a plurality of air injection ports opened on the inner peripheral surface of the cylindrical portion. The container discharging apparatus according to claim 1.

4. The plurality of air injection ports include a valve direction injection port for injecting air toward the valve plate of the butterfly valve device, and a circumferential direction injection port directed substantially in the circumferential direction of the inner peripheral surface. The container discharge device according to claim 3, characterized in that:

5. The container discharge device according to claim 4, wherein the air injected from the valve direction injection port is injected in a direction in which the axis of the valve shaft extends.

6. The container discharge device according to any one of claims 3 to 5, wherein a net member made of a porous sintered metal is provided in the air injection port.

7. The butterfly valve device is attached to the discharge port of the container, and the air injection means is attached to the butterfly valve device in a freely detachable manner, according to any one of claims 1 to 6. Container discharge device.