JPS5826737A - Peripherally dischargeable silo - Google Patents

Abstract

PURPOSE:To make possible first-in, first-out in a silo with a central cone for storing coal, etc., by suspending a silo lower cylindrical wall by a support ring, providing a taking-out space between the lower cylindrical wall and a floor surface, and extending the floor surface so that a heap of the powder may be formed with an angle of repose. CONSTITUTION:An upper silo cylindrical wall is supported by a support ring 10 supported by struts 11, a lower silo cylindrical wall 16 is suspended by a support ring 10 to form a space 18 between it and a floor surface 17, and the floor surface 17 is extended so that the powder 20 may form a heap 22 with an angle of repose. According to this arrangement, as the weight of the powder 20 of coal or the like is received directly by the ground via a central cone 19, the vertical load on the length of silo cylinder can be reduced, and therefore the thickness of the cylindrical wall 13 can be reduced to make it light. In addition, the lower silo wall 16 can be vibrated to prevent bridging from being formed, the contents can be moved uniformly throughout, and the material introduced first can be taken out first. Owing to the angle of repose of the heap 22 of the powder 20, the heap 22 can slide out through the space 18, so that a closing shutter for the space 18 is not required and therefore the structure can be made simple.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention accommodates and stores a large amount of coal fat granules, and the stored materials are uniformly removed over the entire circumference of the lower end of the silo.
Peripheral dumping silo with central cone that can be removed.

What is the purpose of this invention?

(a) Complete first-in, first-out handling is possible for granular materials such as coal.

(b) Most of the weight of the granular materials such as coal will be received on the floor through the central column, and therefore
To reduce the load burden.

(C) Particulate materials such as coal can be removed evenly around the entire circumference of the lower end of the silo.

(d) No dust-closing device such as a 7 Yator is required at all in the barrier section where coal and other granular materials are squeezed out from the lower end of the silo.

(-) The dispensing machine will operate outside the silo, so that no unnecessary load will be placed on the dispensing machine.
It should operate efficiently, be easy to maintain, and be easy to install.

(f) Therefore, silos can be constructed at low cost.

It is possible to provide an improved perimeter removable silo with a number of possible configurations. In other words, the conventional general silo that accommodates and stores coal fat granules is b @
As shown in the figure, a hopper 1 is installed in an inverted conical shape at the bottom of a cylinder, and the stored material is taken out from an opening 3 at its lower end. Since the entire weight of the material is received by the hopper 2, there are problems with the support of the hopper 2 and the load resistance of the silo, making it difficult to apply to large-scale silos. , the height h of the lower end opening 3 of the hopper 2 is approximately 2w for the non-linking equipment for the granular contents such as coal taken out.
n or more, therefore, a dead space is created in the silo cylinder wall 1, which reduces the storage capacity.There is also a problem caused by the bridging phenomenon of granular contents such as coal.

Conventional s $1 As shown in the figure, a conical central cone 4 is installed that stands up on the floor in the silo, and in combination with an inverted circular hopper 6, the central cone 4 is spread all around. Forms an outlet for taking out granular materials such as coal, etc.
There is also. 4m in FIG. 2 is a table fixed to the central cone 4. This silo contains granular materials such as coal.
The problem with the example shown in FIG.
However, the problem of dead space and bridging phenomenon occurring within 11 remains.

In addition, there is a new problem in that a blocking device such as a gate must be installed at the composting opening to control the outflow of granular materials such as coal during initial transport.

Therefore, conventionally, as shown in Fig. 3, a conical central cone 9 is installed on the floor inside the silo, and a delivery conveyor 7 is installed at the lower end of the silo cylinder wall 1 and the central cone 4. A silo has also been developed that allows the material to be delivered to Export Port 8, which was opened in 2015. However, in this case, the discharging conveyor 7 operating within the silo always operates while bearing the weight of the granular materials such as coal, etc.), which is extremely disadvantageous in terms of its power. Moreover, since the dispensing conveyor 1 is always filled with granular materials such as coal, there is a problem in its maintenance.

This invention was made to solve the above-mentioned drawbacks and problems of the prior art.

To summarize this invention, in the first invention, the silo cylinder wall above the support ring supports the support ring.

The holders installed radially outward shall be supported by pillars.

The silo cylinder wall below the support ring is formed of a metal cylinder of approximately equal diameter, and the metal cylinder is suspended and supported by the support ring, and the lower edge of the metal cylinder and the silo floor surface are connected to each other. A must-have for taking out granular materials such as coal during this time! Gaps with a spacing of ＠ degree shall be formed all around the lower edge of the metal cylinder, and a conical central cone shall be installed on the floor surface of the cylinder concentrically with the metal cylinder. In addition, the silo floor surface, excluding the central cone area, is at least at the base of the mountain formed by the granular contents such as coal that protrudes from the lower edge of the metal cylinder based on its angle of repose. It is a peripheral scattering type silo that is formed in a planar shape up to the part.

The second invention has the entire structure of the first invention as a main part, and on the silo floor, granular substances such as coal that have protruded from the lower edge of the metal cylinder are disposed on the silo floor. At least 41 discharge holes shall be opened at a predetermined distance outward from the base of the mountain formed based on the angle of repose, and a discharge conveyor shall be installed below the discharge holes. A peripheral take-out type silo with nine configurations is added, with the addition of a dispensing machine for scraping out granular contents such as coal displaced from the lower edge of the metal cylindrical body and sending it into the discharging hole.

It is.

The present invention will now be explained with reference to illustrated embodiments.

Fig. 4 shows a simplified basic structure of a peripheral extraction type silo, which is the first embodiment of this invention, and Fig. 5 shows the main part of the structure as a bird's-eye view. shows the configuration of the dispensing machine.

In the figure, numeral 10 is a high-strength support ring that serves as the basic structure of the silo barrel.・・・
・It is supported by elevated tracks. The lower end of each support column 11 is integrally connected to a connecting ring supported by the supporting ground at the ground line, and has a nine structure.

In the figure, 13 is a nine-silo cylindrical wall constructed of, for example, reinforced concrete so as to withstand a predetermined axial compressive load above the support/gage 10, 14 is a conical roof portion, 1
Reference numeral 5 indicates an entrance for carrying in granular materials such as coal, which is provided at the upper end of the roof. Note that the inner diameter of the silo cylinder wall 1s is approximately 15 mφ.

In the figure, reference numeral 16 denotes a steel cylindrical body with approximately the same diameter that forms the silo cylinder wall below the support ring 10 as a book having approximately the same size as the inner diameter of the silo cylinder wall 13 above. Its upper end is suspended and supported by a support ring 10. Structurally, the axial compressive load on the silo cylinder wall below the support ring 10 is very small, so the thin steel l
IllIl body 16 is sufficient.

As is clear from FIG. 8, there is a space between the lower end edge 16m of the steel cylinder 16 and the silo floor 17, where the granular materials 20 such as coal inside the silo can be taken out and discarded to the necessary limit. , an interval that is neither too large nor too small & (as an example, an interval of 8
A gap 18 having a diameter of about 100 mm is formed around the entire lower edge 1a of the steel cylinder 16. Therefore, one coal or other granular contained material 20 can be uniformly extracted and taken out in all 3600 directions through the one gate 18 extending over the entire circumference 6ζ of the lower end edge of the steel cylinder 1. Therefore, 20 particles of coal etc.
When the coal and other granular materials 20 in the silo are uniformly removed from the entire circumference of the lower edge of the steel cylindrical body 1, the granular material 20 in the silo can be taken out forcefully and uniformly over the entire surface. Can be served first. As mentioned above, the steel cylindrical body 16 is supported by the support ring 10 in a suspended manner, so it is suitable for being struck or vibrated with a vibrator, and the vibration causes coal, etc. The bridging phenomenon of the particulate matter 20 can be easily eliminated.

In the figure, 19 is the steel cylindrical body 16 and N
It is a conical central cone installed in 6 configurations. The conical inclination angle 0 of the central cone 12 is greater than the angle of repose of the granular contents 20 such as coal, so that the coal oils the conical inclined surface of the central cone 190 and slides down smoothly. central cone 1
In relation to the inner diameter of the steel cylinder 16, the diameter of the silo 9 on the unsurfaced surface is determined by the smoothness of the granular material 2, such as coal.
Dimensions that can be taken out! (As an example, 1eas in t) (FIG. 8) is configured to be smaller. Therefore,
Most of the weight of the 200 granules contained in the silo, such as coal, is received by the central cone 1-, transmitted to the ground, and treated. And the granular contents such as coal inside the silo! O is i in the cross section of the silo
Since the tl decreases uniformly over the entire surface and reaches a gap of 1$,
It's a first-in, first-out system that meets perfectly.

There is no risk of so-called dead stock.

The silo floor surface 17 does not pass through the gap 11 formed over the entire circumference of the lower edge 1 of the steel cylindrical body 16, except for the central cone 19.
Concrete is applied from the position of the lower edge 111 m to the foot of the mountain 22 (Fig. 8) formed based on the angle of repose [h] to a slightly outward part (W 12 am in Fig. 1118). Due to its design, it is formed into a flat shape.

Therefore, - without cutting, - a mountain 22 formed by IItl-shaped contained materials 2, such as lime, which have slipped out through the gate 18.
It will remain stable for a while and will not start slipping out without stopping.

23 in the figure is a granular container such as coal that does not pass through the Ichinoseki 18 on the silo floor 17! The hem t of the mountain 22 formed by
tm) a predetermined distance outward position, tsuma) a pile of granular substances such as coal 2.! ! 9 Exit holes, 24 is an exit hole, located as far outside as possible so that there is no risk of collapse and flooding. 3
A large discharge conveyor is installed under the conveyor so as to communicate with the discharge hole 23. Export hole! 3, the purpose can be achieved by providing one shovel in the circumferential direction, but it is convenient to provide a large number of them evenly distributed in the circumferential direction because the distance for transporting the granular contents 20 such as coal is shortened. becomes.

In the figure, reference numeral 25 is a dispensing machine that breaks up the piles 2 of the granular materials 2, such as extracted coal, and sends them into the discharge hole 23 without passing through the seal at the lower end of the silo.

This is installed outside the silo so as to be concentric with the steel cylindrical body 16 and configured to rotate in one direction around the outer periphery of the silo. This dispensing machine 25 is constructed with a circular ring girder 251 that is constructed slightly higher on the silo floor surface 11 and installed so as to rotate in one direction on a nine-circular track 26 with wheels 21. radially inward from the ring girder 25a at equally divided positions.

And granular coal such as coal! A plurality of scrapers 2 s b are attached to a ring girder 2 sa in a cantilevered manner so as to protrude long enough to reach the O crest 22 to a required depth, and to slide in contact with the silo floor 17 . ...
It is composed of. The 97 dagger 251 has a footer @ t 5 c that is continuous around its entire circumference, and the pinion 21 that meshes with the footer is driven by a rotating machine 29, thereby causing the dispensing machine 25 to rotate in one direction. In addition, for the scraper 2sb...-, the gap 18
The particulate matter such as coal that has been scraped out through the scraping blade and #1 scraping blade is used to scrape up the pile 22 of 20 and collect the granular contents such as coal, transport it, and send it to the discharge hole 23. If it is configured with type 211 transporting blades that have a short role, and each is installed at every other location in the circumferential direction, it will be assumed that the functions are shared and the granular materials such as coal 2. This allows for more rational handling.

Next, the usage and operation of the peripheral extraction type silo with the above configuration will be explained.

The coal bed granules to be stored are carried into the silo by a carrying conveyor (not shown) or the like through the carrying port 15 at the upper end of the silo, and are weighed.

A rotary machine is used to take out the granular materials such as coal in the silo. Start up and pay out machine 2I! Along with operating the
This is done by starting the delivery conveyor t4. When the ring girder 2s field rotates, the scraper 2sb, which rotates together with the ring girder 2s, sequentially breaks down the 200 piles 22 of granular material such as coal through the gap 18 in the circumferential direction, and also breaks down the nine pieces. It collects, transports, and sends it into the delivery hole 23 during at least one round trip. Therefore, it is a dispensing machine! A load of 5 collapses the mountain 22 and.

The main reason is the resistance required to scrape up the granular materials 2, such as coal, and feed them into the discharge hole '13.The rotary machine 211O requires only a pebble as the power of 1L, which is relatively large.

In this way, the dispensing machine 25 uniformly dispenses 20 Vt of coal and other granular materials to the silo in a fixed amount. Therefore, the granular contents such as coal inside the silo!
- descends uniformly over the entire surface, resulting in complete first-in, first-out handling. Payout machine! The granular contents 2, such as coal, sent into the discharge hole 23 by the conveyor 5 are sequentially conveyed to a predetermined location by the discharge conveyor tic.

Next, Figures 1 to 9I! 1 shows, in particular, the constituent parts of a dispensing machine 3 in a one-periphery dumping type silo as a second embodiment of the present invention.

In the case of this first example, the frame structure of the silo is the same as that of the above-described first embodiment. In the case of this example.

The outer periphery of the nine-silo floor 11, which has a planar shape, has a width and depth (for example, width 14
0mm, depth 11 countries), and an ejection hole (not shown) is provided. The outer peripheral wall of the transport tower is designed to open toward the bottom of the tower, and the height of the outer wall of the transport tower is approximately 5 cm (approx.
The elevated wall 31 is formed in an annular shape concentric with the silo, and a rail ss is laid on the upper surface of the elevated wall 31 to serve as an outer circumferential track with a width of 1. In addition, a support frame 34 having an L-shaped cross section is fixed to the outer peripheral surface of the steel cylinder 16 at a position that is almost the same as the upper surface of the elevated structure s1, and the inner periphery of the dispensing machine 30 is fixed on the horizontal surface of the supporting frame 34. Lay the rail 3@ that will become the track and connect the outer frame 3@ and the inner frame 31 *ss, ss'i
Thus, the wheels 3 are integrally connected and run on the rails ss and ss on the lower surfaces of the outer peripheral frame 3 and the inner peripheral frame 37, respectively.
-..., 4 and - are attached to form a rotatable girder. Further, at the lower end of the round suspension frame 41° 41 lowered from the connecting beams 38, 38, there is a feed 9 groove St.
Transport blade (scraper) that slides inside 41.41...
・ and reinforced with diagonal members 43 .
Fix 1. At the lower end of the downward rotating shaft 45m, there are 200 piles of granular materials such as coal that slide on the silo floor 11 and are ejected without passing through the interval. Ru. The ring girder is rotated in one direction by a drive device (not shown) having the same configuration as in the first embodiment.

Next, the operation of the dispensing machine 30 according to the second embodiment will be explained.

When it is necessary to take out the granular material 20 such as coal in the silo, a drive device (not shown) is started to rotate the ring girder 9 degrees in one direction. At the same time, the rotating machine 45 is started to rotate the scraping blade 46 at a relatively low speed. In such a case, as the Su/Gugada rotates, the scraping blades 46 will move toward the face of the steel cylindrical body 16 in the circumferential direction.
200 granular materials such as coal extracted through Kaku 1116
Mountain! Break up 2 and drop it into 1131. On the other hand, the conveying blades 42, which move in the feed groove 32 as the ring j-da rotates, move in the feed groove s2 as described above.
Particulate matter such as coal that falls inside is transported along the groove, and is sent into a discharge hole opened at the bottom of the feeder 881 during at least 41 turns. Therefore, the entire circumference of the lower edge tSa of the steel cylindrical body 16 is
can be taken out uniformly and efficiently.

Next, the effects of this invention will be explained.

In the peripheral extraction type silo according to the first invention, the silo cylinder wall above the support ring supports the support ring, and the supports installed radially outward are supported by the columns; The silo cylinder wall is formed of a metal cylinder of approximately uniform diameter, and the metal cylinder is suspended and supported by a support ring. Between the lower edge of the metal cylinder and the silo floor, In order to take out granular materials such as coal, gaps with a spacing of lll1llTiIL must be formed all around the lower edge of the metal cylinder, and a conical shape must be formed on the floor of the silo, concentrically with the metal cylinder. The central cone of the silo shall be installed, and the silo floor surface shall be formed based on the angle of repose of the granular material such as coal, which is piled up from at least the lower edge of the metal cylinder, excluding the central cone area. Since the base of the mountain is formed into a flat shape, the following effects are achieved.

(1) Since most of the granular material 20 such as coal stored in the silo is received and supported directly on the ground via the central cone 19, the vertical load of the yolk of the silo can be greatly reduced. As a result, the silo cylinder wall 13 can be saved and the structure can be made lighter, which is extremely advantageous as a large-scale silo.

(2) The silo cylinder wall below the support ring 10 is a 1L thin metal cylinder 16 with a structure that only requires consideration of tension.
It can be constructed lightweight and inexpensively. Moreover, by exciting this, the bridging phenomenon can be quickly eliminated.

(3) The granular material 20 such as coal is stored in the gap 18 at the bottom of the silo.
It can be taken out at the wide entrance that goes around the entire circumference.
Therefore, the removal operation is easy. Furthermore, there is no risk of clogging due to bridging phenomena, etc., and the movement of granular materials such as coal within the silo is smooth, and uniform movement over the entire surface can be promoted. Moreover, with the aid of the guiding action of the central cone 19 in all 360° directions, perfect first-in-n-first-out can be achieved. Therefore, so-called dead storage of granular materials such as coal never occurs.

(4) No dead space is created in the silo internal volume, and the storage capacity is large.

(5) The granular contents 2, such as coal, can be taken out outside the silo, and therefore there is no burden due to the weight of the granular contents, such as coal, and it is easy to take out. Granular contained material such as coal 2 that comes out from the lower edge of 16
0 forms a peak 22 on the planar sile floor surface 17 based on its angle of repose and becomes stable, so it is unnecessary to install a shutter or the like to close the gap 18.

(7) Therefore, silos can be constructed at low cost.

Next, a peripheral retrieval type silo according to a second invention has all of the above-mentioned first invention as a main part, and furthermore, a silo that extends from the lower edge of the metal cylinder on the floor surface. At least one discharge hole is opened at a position a predetermined distance outward from the base of the mountain formed by the granular material such as coal based on its angle of repose, and a discharge conveyor is installed below the axillary discharge hole. Additionally, a dispensing machine is installed on the outside of the silo to compare the color of the granular materials such as coal that have come out from the lower edge of the metal cylinder and send it to the discharging hole. Therefore, in addition to the effects (1) to (7) of the above-mentioned first invention, the following effects are achieved.

(8) The dispensing machine operates with light load on the outside &C of the silo, and can uniformly and efficiently take out granular materials such as coal from all stations of the silo, and its handling can be easily automated. can.

(9) The structure of the dispensing machine is simple and its installation is easy. Also, maintenance (e.g. removal, replacement, etc.) is easy.

[Brief explanation of the drawing]

Figures 1 to 3 are explanatory views that simply show different examples of conventional silos, Figure 4 is a vertical sectional view that simply shows the structure of the silo according to the present invention, and Figure S is a cutaway of the previous silo. 6 is a perspective view of the dispensing machine, FIG. 7 is an enlarged plan view of the dispensing machine in a silo as another embodiment of the present invention, and FIGS. 8 and 9 are The figure is A- in Figure 7.
It is an A%BB sectional view. 10--Support ring 1s--Silo cylinder wall 11-
- The support is a pillar 16...Steel 1111M body (metal cylindrical body)
161...Lower edge 17--Size floor surface S...
・Interval 20...Particles such as coal 18...
Gap 1s -- Center cone 22 -- Mountain 22g
-Hem 1! ... Connecting ring 23 ... Carrying out hole 24 ... Paying out conveyor 2s - ... Paying out machine 25 m ... Ring girder 25b ... Scraper 46 - Scraping blade 42 - Transporting blade Inventor Mitsuo Miura Inventor Hiroshi Sugisaki Inventor Hidehiko Nakazaki Inventor Masaru Asai Minoru Inventor 1) Takao Inventor Toshiaki Ishise Inventor Masao Kanemaru Continued from page 1 0 Author Nobuo Ima Suginami, Tokyo 3-11-10, Shimotakaido, Ward

Claims (5)

[Claims] (1) According to the following (A) to (E), the silo cylinder wall above the support ring supports the support ring. They are installed radially outward and the first receivers are supported by pillars. (b) The silo cylinder wall below the support ring is formed of a metal cylinder of uniform diameter, and the metal cylinder is vertically supported by the support ring. (c) Between the lower edge of the metal cylinder and the silo floor, there is a gap that extends around the entire circumference of the lower edge of the metal cylinder, which is necessary for sequentially discharging granular materials such as coal. It is formed. ) Concentrically arranged with the metal cylinder on the floor inside the silo,
A conical central cone is installed. (e) Except for the central cone, the silo floor surface is at least at the base of the mountain formed by the granular materials such as coal that have fallen from the lower edge of the metal cylinder based on their angle of repose. The parts are all flat. (2) The peripheral removable silo according to claim 1, wherein the lower end of each support column is connected to a common connecting ring supported by the supporting ground. (3) A peripheral removable rhinoceros door constructed of the following (a) to (g). (a) The silo cylinder wall above the support ring supports the support ring, and the supports installed radially outward are supported by pillars. (b) The silo cylinder wall below the support ring is formed of a metal cylinder of approximately equal diameter, and the metal cylinder is suspended and supported by the support ring. (c) Between the lower end edge of the metal cylinder and the silo floor, multiple checkers are formed along the entire circumference of the lower edge of the metal cylinder at the necessary intervals for taking out granular materials such as coal. iru. (-4 On the floor inside the silo, arranged concentrically with the metal cylinder,
A conical central cone is installed. → The silo floor surface is flat, except for the central cone area, at least up to the foot of the mountain formed by the granular contents such as coal that protrude from the lower edge of the metal body based on its angle of repose. It is formed in the shape of (f) On the silo floor, the particulate matter such as coal that has come out from the lower edge of the metal cylinder is located at least a predetermined distance outward from the foot of the mountain formed based on its angle of repose. One discharge hole is opened, and a discharge conveyor is installed below the discharge hole. (g) A dispensing machine is installed on the outside of the silo to scrape out particulate matter such as run-off coal from the lower edge of the metal cylinder and send it to the discharge hole. (4) The dispensing machine is installed concentrically with the silo and rotates in one direction around the periphery of the silo, and multiple scrapers that slide on the silo floor are attached to a nine-circular ring girder. A peripheral extraction type silo according to claim 3, which has a configuration in which: (5) The scraper includes scraping blades that scrape up piles of granular materials such as coal that have protruded from the lower edge of the metal body, and scraping blades that scrape up and transport the granular materials such as coal that have been scraped up. The peripheral removable type silo according to claim 4, which is comprised of a type 211 transporting blade that is conveyed into the carrying-out hole.