JPH0738222Y2 - Tank device - Google Patents

Description

[Detailed description of the device]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a tank device for a vertical pneumatic device for granular material.

[0002]

2. Description of the Related Art In a conventional tank device of this type, a bottom wall 32 of a tank body 31 is flat as shown in FIG.

A gas supply pipe 34 is attached to the plane bottom wall 32 toward the center of the tank bottom peripheral wall 33 which is circular in plan view, and the lower end opening 36 of the vertical transport pipe 35 is the bottom face. It was arranged facing the center of the wall 32.

[0004]

In the conventional technique as described above, there is a problem that the granular material 37 remains in a mountain shape as shown in FIG. In particular, in batch transportation for each fixed amount, different types of granular materials are often transported for each batch. When the particles 37 remain as shown in FIG. 8, there is a problem that the particles of the previous batch transportation are mixed as impurities into the particles of the next batch transportation.

[0005]

Means for Solving the Problems The present invention is, therefore, granular
The tank body into which the body is put, and the particles that rush into the tank body
A vertical transport pipe for pneumatic transportation and an additional tank attached to the tank body.
The gas supply for supplying the gas for transporting particulate matter into the tank body
The tank body is equipped with a
Having a substantially conical mountain-shaped projecting ridge protruding in one direction
Having a cylindrical bottom peripheral wall surrounding the ridge, and
Above the top of the chevron ridge, the lower end opening of the vertical transport pipe
The parts are vertically erected at a predetermined interval, and
The axis of the opening of the gas supply pipe connected to the bottom peripheral wall
Is the same height as the slope or top of the above-mentioned approximately conical mountain-shaped ridge.
And is horizontal, and when viewed in plan, the substantially circular shape
Arranged tangentially to the circular skirt of the conical ridge.
Be done.

[0006]

[ Operation ] From the gas supply pipe so that it touches the periphery of the mountain-shaped ridge
Is supplied to the bottom of the cylinder.
It swirls along the peripheral wall to give a swirling rotational motion to the granular material.
In addition, this swirling flow causes the conical slope of the mountain-shaped ridge to rise.
Spirally rises along a tornado-like updraft,
Smoothly feeds into the lower opening of the vertical transport pipe together with the strip
Since the portion where the granular material remains in the shape of a conical mountain as shown in FIG. 8 is rarely occupied by the mountain-shaped projection and ridge in advance, it is difficult for the granular material to remain. Become. Well
In addition, the chevron-shaped ridge has a simple conical shape and structure.
Therefore, complicated processing is not required. Moreover, conventional tongue
For the device, mount the mountain-shaped ridge on the bottom of the tank body.
If the position of the gas supply pipe is changed, the present invention can be easily applied.
Can be used.

[0007]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described below in detail with reference to the illustrated embodiments.

In FIG. 1, reference numeral 1 denotes a tank device according to the present invention, which is a tank body 2 having a funnel-shaped lower portion and an inlet 3 at the upper side, and a tank body 2 from an upper ceiling portion. A vertical transport pipe 4 that has rushed in and a gas supply pipe 5 attached to the tank main body 2 near the bottom surface of the tank main body 2 for supplying the primary gas are provided.

The lower end opening 4a of the vertical transport pipe 4 is
The secondary gas supply pipe 6 that is arranged near the bottom surface side of the tank body 2 and supplies the secondary gas is orthogonal to the vertical transport pipe 4 at a position slightly above the lower end opening 4a. Is connected to.

A blower 7 is a gas pressure feeding pipe 8 for the blower.
Is branched on the way and is connected to the gas supply pipe 5 and the secondary gas supply pipe 6 on the primary side.

Further, the vertical transport pipe 4 extends further upward from the ceiling portion of the tank body 2 and is introduced into the silo 10 via the bag filter 9 located above.

As described above, the apparatus shown in FIG. 1 vertically conveys the granular material from the lower tank apparatus 1 to the upper silo 10.

[0013] Thus, as shown in FIGS. 2 and 3, Tan
The main body 2 is a substantially cone-shaped projecting ridge projecting upward on the bottom surface.
A cylindrical shape having 13 and surrounding the chevron protrusion 13
Has a bottom peripheral wall 20 of. Specifically, the bottom wall 11 of the tank body 2 has, for example, a double wall structure, a flat plate wall 12 and a substantially conical mountain-shaped protrusion 13 integrally fixed thereto by welding or the like. And a substantially conical wall portion 14 that does.

However, the flat plate wall 12 can be omitted (not shown).

Also connected to the cylindrical bottom peripheral wall 20
The axis L of the opening of the gas supply pipe 5 has a substantially conical mountain-shaped protrusion.
The same height as the slope or top 15 of the part 13 and horizontal
Shaped cone-shaped projecting ridge 13
Tangential direction (tangential) that touches the circular skirt of
It is arranged.

Above the top 15 of the mountain-shaped protrusion 13
The lower end opening 4a of the vertical transport pipe 4 with a predetermined vertical interval.
Vertically.

Therefore, as shown by the arrows in FIGS. 2 and 3,
The gas flowing from the gas supply pipe 5 flows into the vertical transport pipe 4 from the lower end opening 4a while spirally rotating from the skirt of the mountain-shaped protrusion 13 to the middle abdomen.

In other words, while being rotationally moved like a tornado, it is sent into the vertical transport pipe 4 together with the granular material (not shown).

The secondary gas is fed from the pipe 6 as indicated by the arrow A in FIG. 2 to assist the vertical upward pressure feeding of the granular material. This secondary gas can be omitted if desired, and thus the pipe 6 may be omitted.

FIG. 4 shows the mountain-shaped protrusion 13 described in the above embodiment.
The shape of is simply shown, and it is a shape close to a cone. In addition to this, it may be preferable to use a conical shape curved in a concave shape as shown in FIG. 5 or a conical shape curved in a convex shape as shown in FIG.

Further, the number of gas supply pipes 5 is two or more,
It is also preferable that both are provided in the tangential direction in plan view.

[0022]

[Effects of the Invention] The present invention has the above-mentioned configuration and is provided with a gas supply pipe.
Supply gas from 5 so that it touches the skirt of the mountain-shaped protrusion 13
This supply gas turns into a swirling flow and swirls in the granular material.
An approximately conical shape of the mountain-shaped protruding ridge 13 while giving a winding rotational motion.
Ascends spirally along the slope and reaches the top of the mountain-shaped protrusion 13
15 to the lower end opening 4a of the vertical transport pipe 4 awaiting above
The granules can be sent smoothly without leaving
It Moreover, on the bottom surface of the tank body 2,
The remaining part is made into a substantially conical shape close to the residual form.
Since the mountain-shaped protrusion 13 is arranged,
It is possible to reliably prevent the granular material from remaining on the bottom surface. Obey
Therefore, even when batch transporting different types of granules,
Granules from the previous process get mixed into the granules from the subsequent process as foreign matter
Can be effectively prevented. In addition, the chevron-shaped protrusion 13 has a substantially conical shape.
Since the shape and structure are simple, it takes time to process.
In addition, the chevron-shaped protrusion 13 is provided on the bottom surface of the tank body 2.
Just to provide and connect the gas supply pipe 5 to the bottom peripheral wall 20.
Easy to manufacture tank device due to its extremely simple structure
Is.

[Brief description of drawings]

FIG. 1 is an explanatory view showing an embodiment of the present invention.

FIG. 2 is an enlarged cross-sectional view of a main part of the present invention.

FIG. 3 is a sectional plan view of the present invention.

FIG. 4 is a simplified diagram showing one of the shapes of the mountain-shaped protrusions.

FIG. 5 is a simplified diagram showing another example of the shape of the mountain-shaped protrusions.

FIG. 6 is a simplified diagram showing another example of the shape of the mountain-shaped protrusions.

FIG. 7 is a simplified explanatory diagram showing a conventional example.

FIG. 8 is a diagram illustrating a defect of a conventional example.

[Explanation of symbols]

 2 Tank main body 4 Vertical transportation pipe 4a Lower end opening 5 Gas supply pipe 13 Chevron ridge 15 Top

Claims (1)

[Scope of utility model registration request] 1. A tank main body 2 for charging a granular material, and the tank main body 2.
A vertical transport pipe 4 for pneumatic transportation of granular particles
Granular inside the tank body 2 attached to the tank body 2
And a gas supply pipe 5 for supplying a gas for sending body air.
In addition, the tank body 2 has a substantially conical shape that protrudes upward on the bottom surface.
Having a mountain-shaped protrusion 13 and enclosing the mountain-shaped protrusion 13
A surrounding bottom wall 20 of cylindrical shape,
Above the top 15 of the ridge 13 the lower end of the vertical transport pipe 4
The openings 4a are vertically provided at a predetermined interval, and
The gas supply pipe 5 connected to the cylindrical bottom peripheral wall 20.
The axis L of the opening of the
It is level with the surface or top 15 and horizontal,
Moreover, when viewed in plan, the circular shape of the substantially conical mountain-shaped protrusion 13
A tank device arranged in a tangential direction in contact with a skirt .