JPS5912575B2 - Particulate matter dispensing device in a cylindrical storage tank - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a dispensing device for granules in a cylindrical storage tank.

As this type of dispensing device, a patent application filed in 1983 by the applicant
Although an improved device has been developed and proposed as shown in JP-A-110706 (Japanese Unexamined Patent Publication No. 55-48085), the dispensing device is equipped with A scraping body, such as a rotary plow that rotates and revolves, is disposed in the scraping gap formed between the peripheral edge and the inner side wall surface of the storage tank, and the scraping body further uses the scraping body to It consists of a horizontally arranged annular belt conveyor that sequentially transports granular materials (grain, coal, etc.) from a dispensing port to a dispensing conveyor.

A device for self-propelling a scraping body that rotates and revolves in this way,
Providing an annular belt conveyor device along the revolving line of the scraper makes the device extremely complicated and adds many elements that are undesirable in terms of maintenance.

The present invention has been made in response to these circumstances, and by attaching the scraping body that rotates and revolves around its axis to a revolving body that rotates around the bottom center of the storage tank, the scraping body of the prior art is improved. By omitting the traveling mechanism and further providing a straight-travel conveying body that leads to the dispensing conveyor in the revolving body, the prior art annular belt conveyor device has been simplified, and a device with a simple structure and high dispensing efficiency has been created. The purpose is to provide

Next, an embodiment of the present invention will be described with reference to the drawings. Reference numeral 1 is a storage tank, and a ceiling roof 2 of the storage tank 1 is provided with a supply port 3 for granular materials such as grains and coal at the center thereof.

Of course, this supply port 3 is provided with a sealing mechanism (not shown) to prevent rainwater from entering or, in the case of coal, to prevent conduction with the outside air as a measure to prevent spontaneous combustion. . Reference numeral 4 denotes a foundation, and on the outer periphery of the upper surface of the foundation 4, an annular foundation 4a having a flat surface on the upper surface is integrally formed.

On the upper surface of this annular base portion 4a, the lower ends of a number of umbrella-shaped support columns 7 for supporting the conical body 6 are installed. A truncated inverted conical particulate guide body 8 is provided between the inner plate surface of the storage tank 1 and the inner plate surface of the storage tank 1.

The guide body 8 is either an iron plate structure disposed as a bridge between the inner surface of the side plate of the storage tank and the upper surface of the annular base portion 4a, or a mortar structure. And this guide body 8
The lower ends of each of the support columns 7 are embedded inside. The lower end circumferential surface of this guide body 8 and the upper surface of the annular base portion 4a,
An annular scraping port 9 is formed between the conical body 6 and the lower peripheral edge of the conical body 6.

Furthermore, the skirt portion at the lower end of the cone 6 facing between the support columns 7 is bent in the vertical direction, as is clear from FIGS. 1 and 3, and each support facing the scraping port 9 An angle-shaped member 10 is fixed to the upper surface of the column 7 as shown in FIG. 4 so that no particulate matter remains on the upper surface of the support column 7. In the above-mentioned embodiment, the conical body 6 was supported on the foundation by the umbrella-shaped support column 7, but this support column was omitted and a radial beam was installed between the inside of the storage tank and the conical body. Since the cone body may be connected by a material and suspended within the storage tank, the installation structure of the cone body is not limited to that of the embodiment.

Reference numeral 11 denotes a cylindrical dispensing chute whose lower part is embedded and fixed in the foundation 4 passing through the central axis of the storage tank 1;
A swing bearing 12 is provided on the outer periphery of the upper part protruding from the base of the swing bearing 12, and the base of a hollow elongated swing body 13 is connected to the upper swing side of the swing bearing 12.

The tip of the revolving body 13 extends to the lower end of the inner edge of the annular base portion 4a, and a cavity 15 for accommodating a scraping body (such as a rotary plow) 14 is provided vertically above the tip of the revolving body 13. A driving motor 16 for the rotary plow 14 is attached to the inner surface of the ceiling wall of the empty chamber 15, and the tip of the rotary plow 14 is connected to the annular scraping opening 9.
is coming.

Further, a guide cylinder 17 for granular material is provided below the rotary plow 14, and below this guide cylinder 17 is a belt conveyor 1 horizontally suspended over the entire length of the revolving body 13.
One end of 8 is approaching.

The delivery end of the belt conveyor 18 is provided above a guide cylinder 19 whose lower part communicates with the upper end of the delivery chute 11 and which rotates together with the revolving body 13. As shown in FIG. 2, wheels 20a and 20b are provided on the front and rear sides below the tip of the revolving body 13, and one wheel 20b
A motor 23 is connected to the torque shaft 21 via a reduction mechanism 22, and the drive of this motor 23 causes the wheels 20
b, so that the revolving body 13 can run on an annular rail 24 provided on the foundation on which the wheels 19 and 20 are mounted.

Incidentally, the speed reduction mechanism 22 and the motor 23 are mounted on the side surface of the rotating body 13. 25 in the figure is the belt conveyor 18
26 is a ladder provided at the base of the revolving body 13, and 27 is a walkway. Reference numeral 28 denotes a delivery conveyor with one end separated from the lower end of the delivery chute 11, and the delivery end of the delivery conveyor 28 is led out of the storage tank 1, although not particularly shown.

Further, a diagonal opening 29 is formed at the lower end of the discharging chute 11, as shown in FIG. Lid plate 30 that is hermetically closed by a signal
is installed, and measures are taken to prevent spontaneous combustion of coal.

31 is a guide cylinder provided between the lower end of the dispensing chute 11 and the dispensing conveyor 28, and 32 is a passage for installing the dispensing conveyor 28.

Next, to explain the dispensing method based on the above embodiment, the storage tank 1
The granules contained therein are guided by the conical surface of the cone body 6 and the circumferential surface of the guide body 8 to reach the scraping port 9 .

The granules are scraped off by the scraping action of the rotary plow 14 facing this scraping port 9, and are supplied onto the belt conveyor 18 through the guide cylinder 17, and are guided from the delivery end of the belt conveyor 18. It is delivered through the tube 19, the delivery chute 11, and the guide cylinder 31 onto one end of the delivery conveyor 28, and is carried out of the tank by the delivery conveyor 28. At the same time as this operation, the revolving body 13 slowly rotates on the rail 24 around its base, and the storage tank 1
The particulate matter inside is scraped off evenly through the scraping port 9 and continuously carried out to the outside of the tank.

In this way, the present invention scrapes the granular material using the scraping body that revolves and rotates due to the rotating action of the revolving body. Since the transporting device can be omitted and the scraped granules are carried in a straight line by a conveyor provided over almost the entire length of the rotor, unlike conventional devices, the scraped granules are not placed at the bottom of the storage tank. It is possible to further improve the efficiency of expanding particulate matter using an extremely simplified device without using a complicated configuration such as concentrically disposed belt conveyors.

In addition, since the dispensing chute is made using the rotating shaft of the revolving body, not only can the structure be further simplified, but also the granular material on the conveyor can be simply thrown into the opening at the upper end of the dispensing chute. This invention is excellent in all aspects from the viewpoint of structure, maintenance, and economy, as the granules can be carried out of the tank by a dispensing conveyor.

[Brief explanation of drawings]

Figure 1 is a vertical front view, Figure 2 is a cross-sectional plan view of the revolving structure, Figure 3 is a partially cutaway front view of the main part, Figure 4 is a sectional view taken along line A-A in Figure 3, and Figure 5. is a sectional view of the lower part of the dispensing chute. 1...Storage tank, 4...Foundation, 4a...
...Annular base, 6...Cone, 7...
... Support column, 8 ... Guide body, 9 ... Scrape opening, 11 ... Dispensing chute, 12 ...
・Swivel bearing, 13...Swivel body, 14...
・Rotary plow, 16...Motor, 17...
...Guide tube, 18...Belt conveyor,
20a, 20b...wheels, 23...motor, 24...annular rail, 28...
Payout conveyor.

Claims (1)

[Claims] 1. A cone is arranged concentrically at the inner lower part of the cylindrical storage tank, and a gap for scraping out the granules in the storage tank is formed between the lower edge of the cone and the inner surface of the storage tank. The granules are sequentially scraped out with a scraping body that rotates and revolves along the scraping gap,
In an apparatus that is carried out of the tank by a conveyance mechanism, the scraper is disposed at the top of a tip of a rotating body that rotates around the upper and lower bottoms of the central axis of the storage tank, and the scraper is disposed inside the rotating body. A conveyor is provided to supply the granules scraped by the ejector to a dispensing chute provided along the rotation axis of the revolving body, and a dispensing device is further provided at the lower end of the dispensing chute to transport the granules out of the tank. A granular material dispensing device in a cylindrical storage tank, characterized in that one end of a conveyor is exposed.