JPH0423839Y2 - - Google Patents

Description

[Detailed explanation of the invention] (a) Industrial application field The present invention relates to a dust removal device for a grain storage tank that stores and dries grain.

(b) Prior Art Grain storage tanks that have a plurality of cylindrical tanks made of steel plates have existed for a long time.

For example, Publication No. 10361 of 1982.

To explain the conventional grain storage tanks shown in FIGS. 6 and 7, cylindrical tanks A made entirely of steel plates are combined or integrally constructed. And elevator room 6
The grain is sent into the shed 3 by the elevator 2 inside.
The structure is such that grain is supplied to each tank A in the shed 3. During this supply, grain dust, etc. is generated inside tank A and the shed 3, which not only impairs the working environment of workers such as inspections, but also accumulates inside the shed 3, impairing the supply efficiency, etc. This was also the cause of the decline.

In order to solve this problem, in the conventional grain storage tank, a duct 30 is arranged downward from inside the shed 3 along the outside of the silo, and a suction fan 18 is installed from inside the machine building B to inside the dust removal room C. Arranged up to
The dust in the shed 3 is sent into the dust removal chamber C through the dust removal duct 30 by the power of the suction fan 18, and the dust is removed.

(c) Problems to be solved by the invention However, the conventional grain storage tank having the above-mentioned configuration had the following problems (defects).

(1) Due to the long piping route of the duct, the power burden on the fan is large, and the manufacturing cost of the dust removal duct is high.

(2) The location of the duct is limited depending on the location of the machine building B and dust removal room C.

(3) Because the duct is exposed to the outside of the tank, rust and corrosion are likely to occur.

(4) In order to install piping inside the machinery building, other ducts, chutes, etc. could not be connected smoothly.

(d) Means for Solving the Problems Therefore, in order to solve the above problems, the present invention provides a grain storage structure in which a plurality of cylindrical tanks are arranged and grain is filled from inside the upper chamber of the tanks. In the tank, an upper connection part of the duct is installed between each tank and above the space covered by the outer plate, and a lower connection part to the dust removal fan is installed at the bottom of the space. The fan was placed at the bottom of the tank.

(E) Embodiments The purpose and structure of the present invention are as described above, and the specific structure of the present invention will be explained below based on the embodiments shown in the attached drawings.

The entire grain storage tank in this invention is
As shown in Figures 2 and 3, there are a plurality of tanks A... made entirely of steel plates, and tanks A...
Elevator 2 and elevator 4 provided on the side, and tank A
... It is composed of a shed 3 installed at the top and a belt conveyor 5 installed inside the shed 3, and also has a machine building B and a dust removal room C as attached facilities.

The elevator 2 is a device for transporting grain above the tanks A, and is equipped with a plurality of buckets 2a, and is installed in the elevator room 6 near the end of the tank A.

A belt conveyor 8 is installed between the upper end of the elevator 2 and the inside of the shed 3 on the top surface of the tank A, and the grain conveyed upward by the elevator 2 is conveyed into the shed 3. It is constructed so that one end of the line is connected upward.

The belt conveyor 5 conveys grain in the left-right direction, and is located between the left and right sides of the tanks A, and guide plates 10 are disposed along both sides of the conveyor 5. The guide plate 10 is equipped with a grain outlet 11, and is configured to fill the grain into the hopper 1 from the outlet 11.

Each tank A is integrally constructed of a cylindrical steel plate, and is used to fill and store grain. A grain discharge port 12 is provided at the lower end of the tank A, and each discharge port 12 is equipped with a shutter 26. Each of the upper rooms is equipped with a discharge cylinder 13.

Belt conveyors 14, 14 are installed in the left and right direction, and are for conveying the discharged grain to the side ends of tanks A. Reference numerals 15, 15 are drive motors for the belt conveyors 14, 14.

Furthermore, an elevator 4 is installed upward from near the ends of the belt conveyors 14, 14, so that the conveyed grain can be filled again into the tank A from the belt conveyor 5. In other words, in order to average out the differences in moisture and temperature of the grains filled in tank A...
A so-called rotation can be performed in which the tank A is emptied and transferred to another tank A.

Further, a grain outlet 28 is also provided near the ends of the belt conveyors 14, 14.
It becomes possible to transfer grain from 8 to truck 29, etc.

In a grain storage tank having such a configuration, since the height of tank A is quite high, when filling grain, etc. into tank A, dust etc. from grain etc. may come from inside tank A. The dust spreads into the upper shed 3, creating a poor environment for workers who inspect the amount of grain filled inside the shed 3, and a dust removal device is required to prevent this.

Therefore, in the present invention, as shown in FIGS. 2 to 5, a part of the space X existing between the tanks A made of steel plates is constructed to become a duct. That is, the tanks A... are located at intervals, but the tank A... is integrally constituted by the outer panel 1 and the curved reinforcing plate 16, and the outer panel 1 and the reinforcing plate A space portion X, which becomes a dead space, is generated in each area surrounded by 16....

An opening 16a is provided in the upper part of this space X, that is, at a location corresponding to the upper inner wall surface of the tank A, and an upper fitting part 19 is attached to the opening 16a, and the other end of the upper fitting part 19 is provided with an opening 16a. The structure is such that it extends upward and reaches inside the shed 3.

In addition, as another example, an opening 16b is provided in the upper wall of the space X, the upper fitting part 19 is attached to the opening 16b, and the other end of the upper fitting part 19 is taken into the shed 3. It is also possible to have a configuration.

Further, the upper end of the upper connecting part 19 can function as a duct even in its original state, but it is connected to a duct 20 inside the shed 3 in order to achieve an even greater dust removal effect. 21 is a connecting duct. The tip of the duct 20 branches into various locations within the shed 3, and an opening 20a is provided at each branch end.

Lower side wall 1 of space X provided with upper connecting portion 19
6 is provided with an opening 16a, and one end of a lower connecting portion 25 is attached to the opening 16a.
The lower connecting part 25 becomes a duct connected to the dust removal fan 18.

Conventionally, the dust removal fan 18 was installed in the dust removal chamber C, but in the present invention, it is installed at the bottom of the tank A, and the lower connecting part 25 is configured to be short and attached to the dust removal fan 18. For this reason, the path from the duct to the dust removal fan 18 is much shorter than in the past, so the power burden on the dust removal fan 18 is reduced, and there is no need to arrange the duct in the machine room B.

The duct 17 from the dust removal fan 18 is disposed in the dust removal chamber C, and dust is removed within the dust removal chamber C.

In this way, the space X is inevitably created at the same time as the grain storage tank is manufactured, and there is no longer a need for a special duct to be installed as in the past, and this space X is at least suitable for grain storage. Since it is configured in four directions of the tank, it is possible to use any of these spaces X.
The dust removal chamber C can also be provided at an arbitrary position. Furthermore, processing the space X to form a duct can be easily done even after the grain storage tank is completed, and the duct can be easily changed.

In addition, there is an inspection hatch 2 on the lower outer wall surface of space X.
4 is provided so that when dust or the like accumulates in the space X, it can be taken out from this hatch 24.

(F) Function The structure of the present invention is as described above, and its function will be explained below.

First, to explain the process from conveying grain to filling, the grain conveyed upward by the elevator 2 is sent onto the belt conveyor 5 in the shed 3 by the belt conveyor 8, and is further conveyed by the belt conveyor 5 and the unloading process. It is transported and filled into each tank A through the outlet 11.

When discharging the filled and stored grain, by opening the shutter 26 of the discharge port 12 at the bottom of each tank A, the grain is transferred from the discharge cylinder 13 to the belt conveyor 14. , 14, and is further carried out to the outside of the tank A by the belt conveyors 14, 14. moreover,
In the case of rotation, the elevator 4 refills the tank A with grains, and the grains are discharged from the outlet 28 to be transported outside.

Furthermore, to explain the dust removal device which is the main part of this invention, the dust removal fan 18 is driven to remove the dust from the shed.
The dust generated inside is discharged from the opening 20a of the duct 20...
..., from inside the duct 20, passes through the space X that becomes the duct, and then from the duct 17 to the dust removal chamber C.
It is sent within.

(g) Effects of the invention Therefore, by configuring the invention as described above, the following effects are produced.

(1) The duct of the present invention is produced in a combined manner at the same time as the production of the grain tank, reducing costs due to mechanical takt time and shortening the production period.

(2) Since the duct route is shortened, the power of the dust removal fan is reduced.

(3) Because there are few outdoor exposed parts of the duct, rain and
Effective against rust.

(4) Since there will be no piping inside the machinery building, other ducts, chutes, etc. will be connected smoothly.

(5) Since it can be used in any of the four directions of the tank, it is not affected by the placement of the dust removal chamber.

[Brief explanation of the drawing]

Figure 1 is an overall plan view of the grain storage tank. Figure 2 is a side sectional view of the grain storage tank. Figure 3 is a front sectional view of the grain storage tank. FIGS. 4 and 5 are partial plan cross-sectional views of the grain storage tank. 6 and 7 are plan and side views of a conventional grain storage tank. A... Tank, X... Space, 1... Outer plate, 3
... Shed, 18 ... Dust removal fan, 19 ... Upper joint part, 20 ... Duct, 25 ... Lower joint part.

Claims (1)

[Scope of utility model registration request] In a grain storage tank configured such that a plurality of cylindrical tanks A are arranged and grain is filled from the upper chamber 3 of the tank A, each tank A is
...The upper part of the space X covered by the outer panel 1 is equipped with the upper connecting part 19 of the duct 20, and the lower part of the space X is further provided with the lower connecting part 25 for the dust removal fan 18. A dust removal device for a grain storage tank, characterized in that the dust removal fan 18 is arranged at the bottom of the tank A.