JPH07172488A - Granule storage device - Google Patents

Abstract

PURPOSE:To provide a granule storage device which is simple in structure and excellent in appearance and safety and which does not cause any trouble when set under an atmosphere of unfavorable conditions. CONSTITUTION:A granule storage device is provided with a hopper 20 having its upper opening 21 connected to a supply pipe 10 and its lower opening connected to a discharge pipe and a lid 40 supported within the hopper 20 in a freely vertically movable manner for opening and closing the upper opening 21. The aforesaid granule storage device is for placing the granule from the supply pipe 10 into the hopper 20 and discharging the same from the discharge pipe and is further provided with a driving device 50 for raising and lowering the lid 40 within the hopper 20.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a storage device for powder and granular material, and more specifically, to a hopper having an upper opening connected to a carry-in tube and a lower opening connected to a carry-out tube, and a hopper capable of moving up and down inside the hopper. The present invention relates to an improvement of a granular material storage device which is provided with a lid which is supported and which opens and closes the upper opening, and which carries out the granular material carried into the hopper from the carrying-in tube from the carrying-out tube.

[0002]

2. Description of the Related Art Conventionally, various types of powder and granular material storage devices for storing powder and granular material such as foods and feeds have been devised, some of which have an upper opening connected to a carry-in pipe. And a hopper whose lower opening is connected to the discharge pipe, and a lid which is vertically movable within the hopper and which opens and closes the upper opening,
There is one that carries out the granular material carried into the hopper from the carry-in pipe through the carry-out pipe.

Here, in a conventional storage apparatus for powder and granules, as shown in FIG. 7, for example, a lid for opening and closing an upper opening of a hopper is rotatably supported inside the hopper by a rotating shaft. The operation of rotating the lid is performed via a lever or the like by a driving device such as an air cylinder arranged outside the hopper.

[0004]

However, in the conventional powder and granular material storage device, since the drive device for the lid is arranged outside the hopper, not only does it impair aesthetics, It was inferior in safety because the operating parts such as the lever were exposed.

Further, in the case where the drive device is to be installed outdoors, for example, exposed to wind and rain, or in an atmosphere of adverse conditions such as in a hot and humid factory, it is necessary to consider so that the drive device can sufficiently withstand the atmosphere. It didn't happen.

[0006] Further, for example, there is one in which air is supplied into the hopper to carry out the powder or granules from the discharge pipe by air pressure. In the case of such a powder or granule storage device, for example, the rotation of the lid is performed. Since the operating parts such as the shaft are disposed so as to penetrate the hopper, the airtightness must be sufficiently considered so that the air leakage does not occur from the gap between the hopper and the rotating shaft.

The respective inventions of the present invention have been made in view of the above circumstances, and the object thereof is to provide excellent aesthetics and safety, and even if the apparatus is installed in an atmosphere of adverse conditions, there will be some trouble. An object of the present invention is to provide a storage device for powder and granular material having a simple structure. In particular, the invention of claim 3 is, in addition, a storage device for a powder or granular material, which can secure a sufficient air pressure in the hopper to reliably carry out the powder or granular material in the hopper,
It is to provide by a simple structure.

[0008]

Means for Solving the Problems To solve the above problems, the means adopted by the present invention will be described with reference to the reference numerals used in the drawings.
1 is connected to the carry-in pipe 10 and a lower opening 22 is connected to the carry-out pipe 30; and a lid 40 which is supported in the hopper 20 so as to be vertically movable and opens and closes the upper opening 21. A storage device 100 for powder and granules, which carries out the powder and granules carried into the hopper 20 from the carry-out pipe 30, wherein a drive device 50 for raising and lowering the lid 40 is provided inside the hopper 20. It is a storage device 100 "for powder particles.

Next, the invention of claim 2 is that "a plurality of hoppers 20 arranged in parallel to each other and an upper opening 21 of each hopper 20.
And a carry-in pipe 10 connected to the hopper 20 for branching and carrying in the hoppers 20, and a carry-out pipe 30 connected to the lower opening 22 of the hoppers 10 for merging and carrying out the granules from the hoppers 20.
The powdery or granular material storage device 100 according to claim 1, further comprising:

[0010] Finally, the invention of claim 3 is, "A supply pipe 23 is provided which is connected to the hopper 20 and supplies air into the hopper 20, and the powder or granular material in the hopper 20 is discharged from the discharge pipe 30 by air pressure. It is the storage apparatus 100 for powder or granular material according to claim 1 or 2, which is carried out.

[0011]

The storage apparatus 100 for powder and granules according to the present invention thus constructed operates as follows.

First, in the powdery-grain storage apparatus 100 according to the invention of claim 1, a lid 40 for opening and closing the upper opening 21 of the hopper 20 is supported so as to be able to move up and down, and a drive unit 50 for raising and lowering the lid 40 is provided in the hopper. It is arranged inside 20. Therefore, unlike the conventional case, the driving device 50 and the operating portion are not exposed to the outside of the hopper 20, and the aesthetics and safety are excellent.

Further, even if the powdery or granular material storage device 100 is installed in an atmosphere of adverse conditions, the drive device 50 is used.
Is not exposed to the atmosphere, the drive device 5
It is no longer necessary to consider 0 so that it can withstand the atmosphere sufficiently.

Next, a powdery-grain storage device 100 according to the second aspect of the present invention comprises a plurality of hoppers 20 arranged in parallel.
Here, when the granular material is carried out by one hopper 20,
Since the step of loading the granular material into the hopper 20 and the step of unloading the granular material from the hopper 20 are required, it is not possible to continuously unload the granular material, and the unloading of the granular material is stopped. Time arises. Therefore, when two or more, that is, a plurality of hoppers 20 are arranged side by side as in the invention of claim 2, for example,
If the granular material is carried out from the other hopper 20 when the granular material is carried into the one hopper 20, and the granular material is carried into the other hopper 20 when the granular material is carried out from the one hopper 20. That is, the powder or granules can be constantly carried out, and the powder or granules can be continuously carried out.

Lastly, the powdery-particle storage device 100 according to the second aspect of the present invention is designed so that the powdery-particles in the hopper 20 are carried out from the carry-out pipe 30 by air pressure. The operating part of No. does not penetrate into the hopper 20, and it is not necessary to consider the air leakage from the gap between the hopper 20 and the operating part as in the conventional case. Further, since air leakage does not occur, the powder particles inside the hopper 20 are reliably carried out by the air pressure.

[0016]

[Embodiment] Next, a storage apparatus 10 for powder and granular material according to each invention.
0 embodiment will be described in detail with reference to the drawings.

FIGS. 1 to 3 show an embodiment of a powdery or granular material storage device 100 according to the present invention. This storage device 1
00 comprises two hoppers 20 arranged side by side as in the invention of claim 2, and the carry-in pipe 10 for branching the carried-in powder and granules into two hands is connected to the upper opening 21 of each hopper 20, A carry-out pipe 30 that joins the powder and granules carried out from each hopper 20 is connected to the lower opening 22 of each hopper 20. By alternately carrying out the powder or granular material in each hopper 20, it is possible to continuously carry out the powder or granular material without causing a time for stopping the transport of the powder or granular material. The powdery-particle storage device 100 according to the invention of claim 1 is not limited to the one having the plurality of hoppers 20.

Further, as in the invention of claim 3, each hopper 2 is
A supply pipe 23 for supplying air into the hopper 20 is connected to 0, and the powder or granular material in the hopper 20 is carried out from the carry-out pipe 30 by air pressure. It should be noted that the powder and granular material storage device 100 according to the invention of claim 1 and claim 2
Is not limited to this.

Next, the detailed structure of the storage device 100 for the powder and granules will be described.

As shown in FIGS. 4 and 5, inside the hopper 20, a lid 40 that is liftably supported to open and close the upper opening 21 of the hopper 20 and a driving device such as an air cylinder that raises and lowers the lid 40 are provided. And 50 are provided. Here, the lid 40 is supported by the driving device 50, and the driving device 50 is mounted on a pedestal 51 installed inside the hopper 20. Further, the pedestal 51 has a substantially triangular cross section, and has a shape in which the powder or granules carried in from the carry-in pipe 10 are unlikely to stay on the pedestal 51. Further, below the pedestal 51, an air pipe 42 for supplying air to the drive device 50 and an air pipe 42 for supplying air ejected from a lid 40 described later are arranged.

The inside of the lid 40 is formed in a hollow shape, and the surface thereof is provided with a through hole 41 communicating with the inside cavity. Then, the air supplied to the internal cavity through the air pipe 42 described above is supplied to the through hole 41 on the surface of the lid 40.
The powder particles are smoothly carried into the hopper 20 from the carry-in pipe 10 by being jetted from. Also,
On the inner peripheral surface of the carry-in pipe 10, there is provided a protrusion 11 having a hollow interior and a substantially triangular cross section. Then, a through hole 12 communicating with the internal cavity is formed on the upper surface of the projecting portion 11, and air is ejected from the through hole 12 so that the granular material is transferred from the carry-in pipe 10 into the hopper 20. So that it can be carried in more smoothly.

On the other hand, as shown in FIG. 6, a carry-out pipe 30 is connected to the lower opening 22 of the hopper 20, and the lower opening 22 is opened and closed by a carry-out lid 31. The carry-out lid 31 is rotatably supported inside the carry-out tube 30, and is rotationally driven by a driving device 32 such as an air cylinder. The carry-out lid 31 is closed when the powder and granules are being carried out from the other hopper 20, and prevents the powder and granules from flowing back into the hopper 20. The drive device 50 of the carry-out lid 31 is arranged outside the carry-out pipe 30,
It is convenient to dispose it inside the carry-out pipe 30 because the objects of the present invention can be achieved more completely.

Next, an example of a mode of use of the powdery or granular material storage device 100 will be described.

First, the lower opening 22 on one hopper 20 side
The carry-out lid 31 that opens and closes is closed, the lid 40 that opens and closes the upper opening 21 is opened, and the powdery particles are loaded into the hopper 20 from the loading tube 10. Next, the lid 40 of the upper opening 22 is closed, air is supplied into the hopper 20 from the supply pipe 23 connected to the hopper 20 to pressurize, and then the carry-out lid 31 of the lower opening 22 is opened to open the inside of the hopper 20. The granular material is carried out by air pressure.
As described above, when the powdery or granular material is loaded / unloaded in one hopper 20, the other hopper 20 is loaded / unloaded in the opposite manner, and the hoppers 2 are always loaded.
The powder and granules are carried out from 0. Then, the powdery particles are continuously and continuously discharged from the discharge pipe.

[0025]

As described in detail above, in the powdery or granular material storage device of the present invention, the drive device for driving the lid for opening and closing the upper opening of the hopper is disposed in the hopper. The device is housed inside the hopper and protected from the outside atmosphere. And, in particular, the powdery or granular material storage device according to the invention of claim 2 comprises a plurality of hoppers arranged in parallel,
In the powdery-particle storage device according to the invention of claim 3, the powdery-particles in the hopper are carried out by air pressure.

Therefore, according to each of the present invention, a storage device for a granular material, which is excellent in aesthetics and safety and does not cause any trouble even when installed in an atmosphere of adverse conditions, is provided with a simple structure. can do. And, in particular, according to the invention of claim 2, in addition to the storage device of the granular material capable of continuously carrying out the granular material, according to the invention of claim 3, A storage device for powder and granules that can reliably discharge the powder and granules in the hopper by ensuring sufficient air pressure of
Each can be provided by a simple structure.

[Brief description of drawings]

FIG. 1 is a front view showing an embodiment of a storage device for powder and granular material according to the present invention.

FIG. 2 is a view on arrow A in FIG.

FIG. 3 is a sectional view taken along line BB in FIG.

FIG. 4 is an enlarged sectional view of a C portion in FIG.

5 is an enlarged cross-sectional view of a D part in FIG.

FIG. 6 is an enlarged sectional view of a portion E in FIG.

FIG. 7 is a cross-sectional view of essential parts showing a conventional powder or granular material storage device.

[Explanation of symbols]

 10 carry-in pipe 11 projecting part 12 through hole 20 hopper 21 upper opening 22 lower opening 23 supply pipe 30 carry-out pipe 31 carry-out lid 32 drive device 40 lid 41 through-hole 42 air pipe 50 drive device 51 pedestal 100 storage device for powder particles

Claims (3)

[Claims] 1. A hopper provided with an upper opening connected to a carry-in pipe and a lower opening connected to a carry-out pipe; and a lid which is supported in the hopper so as to be movable up and down and opens and closes the upper opening. A storage device for powder and granules that carries out the powder and granules that have been carried into the storage device from a discharge pipe, wherein a drive device for raising and lowering the lid is provided inside the hopper. 2. A plurality of hoppers arranged in parallel with each other, a carry-in pipe connected to an upper opening of each hopper for branching and carrying the powdery particles into each hopper, and a hopper connected to a lower opening of each hopper. The storage device for the powder and granules according to claim 1, further comprising a discharge pipe that joins the discharged powder and granules. 3. A supply pipe connected to the hopper for supplying air into the hopper, wherein the powder or granular material in the hopper is carried out from the carry-out pipe by air pressure. A storage device for the powder and granules described.