JPH11168971A - Silo facility, and storage and treatment of powdery and particulate material - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a silo facility capable of ventilation while effectively utilizing a conventional facility by installing a means for separating powdery and particulate material into powder and particles, a silo main body for storing the particles separated by the above mentioned means and a ventilating means for improving the ventilating property of the stored material in the silo main body. SOLUTION: This silo facility is provided by installing a separating means 10 for separating a powdery and particulate material into powder and particles, a silo main body 2 for storing only the particles separated by the separating means 10 as a stored material A, and a ventilating means for ventilating the inside of the silo main body 2. Also, in the above silo facility, a forming means for forming particulate state-formed materials from the powder separated by the above separating means 10 is provided, and the formed material formed by the forming means can be stored in a silo main body different from that for the particles.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a silo facility suitable for storing granules and a method for storing and treating granules.

[0002]

2. Description of the Related Art Forage for livestock, grass is 7 to 8 in length.
Hay cubes formed into granules of 2 to 3 cm square are widely used in Australia, the United States, and the like, and have recently attracted attention in Japan. Normally, Hay cubes are stored in piles in countries with vast land, such as Australia and the United States, but in Japan where the land is narrow,
Storing hay cubes in silos is being considered. By the way, when such a hay cube is stored in piles, the internal temperature becomes high and it may ignite. The cause of the fire is still unknown, but it is believed to be due to bacteria, as it is resolved by restacking. On the other hand, as silo equipment, cold air at 0 to 5 ° C is circulated and supplied into the silo body for the purpose of preventing the deterioration and decay of the stored matter consisting of grains and processed products stored in the silo body. A device configured to suppress a rise in temperature of a stored product has also been proposed and put into practical use.

[0003]

Even when the hay cube is stored in the silo main body, there is a concern that the hay cube may be fired unless air is periodically passed through the inside thereof as described above. Therefore, it is easy to periodically ventilate the inside of the silo body to prevent the ignition of the hay cube, but the hay cube contains about 30 wt% of powder, and a part of this powder is contained. Is separated by vibrations during transportation, etc., so if the hay cube is put into the silo body as it is, the powder fills the gap between the hay cubes, the ventilation resistance of the silo body increases, and inside the silo body unless it is a large blower There is a problem that can not be sufficiently ventilated. An object of the present invention is to provide a silo facility and a method for storing and treating powder and granular materials, which can ventilate while effectively utilizing existing facilities by improving the air permeability of an object to be stored in a silo body.

[0004]

According to a first aspect of the present invention, there is provided a silo facility comprising: a separating means for separating a granular material into a powder and a granular material; and storing only the granular material separated by the separating means as an object to be stored. And a ventilation means for ventilating the inside of the silo body. In this silo facility, the powder and granules are once separated into the powder and the granules by the separation means, and only the separated granules are stored in the silo main body as a storage object, so that the ventilation resistance in the silo main body can be minimized. . For this reason, it becomes possible to ventilate the inside of the silo main body with the existing small ventilation means, and it is possible to reliably prevent the storage object from being ignited while effectively utilizing the existing facilities.

According to a second aspect of the present invention, there is provided a molding means for molding a granular molded article from the powder separated by the separating means, and the molded article molded by the molding means is stored. May be stored in a silo body separate from the granules. In this case, the ventilation resistance in the silo main body can be significantly reduced as compared with the case where the powder is stored in the silo main body as it is. As described in claim 3, it is preferable that the separating means include a wind separator for separating powder and granules into powder and granules by wind screening, and a cyclone dust collector for separating powder from air for wind screening. . In this case, by circulating and supplying the air for wind separation separated by the cyclone dust collector to the wind separator, it is possible to reliably prevent the fine powder from being discharged to the outside, and to deteriorate the working environment due to the fine powder. Can be prevented. In order to minimize the amount of powder contained in the separated granules, the granules may be vibrated at the time of wind selection.

According to a fourth aspect of the present invention, there is provided a measuring means for measuring the temperature of the storage object in the silo main body, and the inside of the silo main body is ventilated by the ventilation means so that the temperature of the storage object becomes lower than the ignition temperature. It is preferable to provide continuous or intermittent ventilation. With this configuration, it is possible to reliably prevent ignition of the stored object. As described in claim 5, an air conditioner may be provided upstream of the ventilator. The air-conditioning unit can be provided on the downstream side of the ventilation unit, but is preferably provided on the upstream side because the humidity of the ventilation air at the same temperature can be reduced. That is, since the ventilation means supplies the ventilation air into the silo body by a blower or the like, the ventilation air is increased by about 10 ° C. at this stage. For this reason, the temperature of the air discharged from the air conditioner can be set to be lower by about 10 ° C. on the upstream side than on the downstream side, and the humidity can be set lower accordingly.

According to a sixth aspect of the present invention, it is preferable that an upper hopper is provided above the lower hopper in the lower portion of the silo body. With this configuration, a space in which the material to be stored is not filled is formed between the upper and lower hoppers, and this space is used to attach an air knocker or the like to the back surface of the upper hopper and supply air or fumigation gas for ventilation or cooling. ,
Inspection of stored items can be performed. Moreover, compared to the case where a duct or the like for supplying air or fumigation gas for ventilation or cooling is provided in the silo main body in a transverse manner, a bridge is formed in the storage object stored in the silo main body. Can be suppressed, and the stored matter can be efficiently discharged.

According to a seventh aspect of the present invention, a forced discharge means having a screw feeder may be provided below a discharge port formed at a lower end of the silo main body. With this configuration, it is possible to set a large diameter of the discharge port,
Discharge of stored materials can be performed more smoothly. As described in claim 8, it is preferable that the powdery granule is a hay cube formed by shaping pasture into a granular form. Such a hay cube has 30
The powder of the present invention contains powder of as much as wt%, and the powder is separated from the hay cube by vibration during transportation or the like to become a powder, and furthermore, it is spoiled by bacteria or the like and relatively easily ignited. By storing in the silo body described in any one of the above, ignition of the hay cube can be prevented without adding a significant design to the existing equipment.

[0009] The method for storing and treating powdery and granular materials according to claim 9 is as follows.
The granules are separated into powder and granules by separation means, and only the granules are stored in the silo main body as a storage object, and the ventilation means is used so that the temperature of the storage object is lower than its ignition temperature. The storage target is stored while the silo body is continuously or intermittently ventilated. According to this method for storing powder and granules, the powder and granules are separated into powder and granules, and only the granules are stored in the silo main body as objects to be stored, so that the ventilation resistance in the silo main body is minimized. it can. For this reason, it becomes possible to ventilate the inside of the silo main body with the existing small ventilation means, and it is possible to reliably prevent the storage object from being ignited while effectively utilizing the existing facilities. As described in claim 10, the powder separated by the separating means is formed into a granular molded article by the molding means, and the molded article is stored as an article to be stored in a silo main body separate from the granules. preferable. In this case, the ventilation resistance in the silo main body can be significantly reduced as compared with the case where the powder is stored in the silo main body as it is.

According to the present invention, when the object to be stored is carried out from the silo main body, the powder is separated from the object to be stored again by the separating means, and the separated powder is formed into a granular form by the forming means. It may be formed into a product, and the formed product may be carried out alone or together with the stored material after the powder is separated. It is conceivable that the powder contained in the storage object may be separated by an impact when the storage object is put into the silo main body. It is preferable to separate the powder from the powder and form it into a granular molded product by a molding means, and to carry out the molded product alone or together with the stored material after the powder is separated. For example, if a lot of powder is present in a hay cube in a separated state, when the livestock eats the hay cube, the powder may enter the nose of the livestock, causing a problem that the hay cube becomes difficult to eat. In order to reduce the amount of powder as much as possible, it is preferable to process the powder of the material to be carried out into a granular shaped product.

[0011]

Embodiments of the present invention will be described below with reference to the drawings. As shown in FIGS. 1 and 2,
The silo equipment 1 includes a separating means 10 for separating the powder and the granular material into a powder and a granular material, a forming means 11 for forming a granular shaped product from the powder separated by the separating means 10, and a separating means 10. A plurality of silo main bodies 2 that individually store the granules separated by the above and the molded products molded by the molding means 11 as the articles A to be stored, respectively.
And ventilation means 12 for supplying ventilation temperature control air to the vicinity of the lower end of each silo main body 2. However, since a plurality of silo bodies 2 are usually arranged in parallel,
The storage object A is sequentially charged into the plurality of silo main bodies 2 by the conveyor 26 by one set of the separating means 10 and the forming means 11, and a plurality of silos are opened by one ventilating means 12 by opening and closing a valve or the like. The temperature control air for ventilation is sequentially supplied to the main body 2.

In the silo equipment 1, the granular material as the storage object A is carried into the silo equipment 1 from a container or a ship, and the carried granular material is separated via a conveyor 13 and a lifter 14 into separation means. It is transported to 10. The granular material carried into the separation means 10 is separated by the wind separator 15 of the separation means 10.
Inside, the air is separated into powder and granules by the air for air selection from the blower 16. Then, the separated granules are temporarily stored in a tank 17, then weighed by a measuring device 18, and put into a silo main body 2 via a lifter 25. On the other hand, the separated powder is supplied to the cyclone dust collector 19 together with the air for air selection, and the air for the air selection and the powder are separated in the cyclone dust collector 19.
It is conveyed to the molding means 11 through the powder silo 21 and the conveyor 22, and the air for air selection is circulated and supplied to the air separator 15 via the blower 16. The powder conveyed into the molding means 11 is heated and compressed by steam from the boiler 23 to be formed into a pellet-shaped molded product, and further dried in the outside air in the dryer 24, and then the lifter 25 and the conveyor It is thrown into the silo main body 2 different from the granules through 26 and stored.

As described above, in the silo facility 1, the conveyed powder and granules are separated into powder and granules, and the granules are formed as they are, and the powder is formed into a pellet-like molded product. Is stored in the different silo main bodies 2 as the storage objects A, respectively, so that the ventilation resistance of the storage objects A in both silo main bodies 2 is significantly reduced. In addition, by circulating the air for air selection between the air separator 15 and the cyclone dust collector 19, it is possible to prevent the working environment from being deteriorated due to the discharge of the powder to the outside. In addition, the wind separator 15, the cyclone dust collector 19, and the measuring device 1
Since a well-known configuration can be adopted for 8, a detailed description thereof is omitted.

As the storage object A, a hay cube,
Bran pellets, beet pulp, solar alpha pellets, mechanical alpha pellets, tapioca pellets, gluten meal, gluten feed, and the like are conceivable.
Since the inside can be ventilated to prevent the ignition of the storage object A due to bacteria or the like, it is suitable to store the hay cube in which the grass is formed into a rectangular parallelepiped shape as the storage object A.

As shown in FIGS. 1 to 4, the silo body 2 includes a substantially cylindrical peripheral wall portion 4, a substantially conical lower hopper 5 connected to the lower end of the peripheral wall portion 4, and having a diameter reduced downward. An upper hopper 6 is disposed above the lower hopper 5 and substantially parallel to the lower hopper 5, and a substantially disk-shaped upper wall 7 closing the upper end of the peripheral wall 4. The two hoppers 5 and 6 are arranged so as to be inclined at about 60 ° with respect to a horizontal plane, and a worker walks between the upper hopper 6 and the peripheral wall 4 with the storage object A filled in the silo body 2. A possible annular space 8 having a triangular cross section is formed. The annular space 8 is used as a work space for mounting the air knocker 30 or the like on the back surface of the upper hopper 6, used as a duct for supplying air or fumigation gas for ventilation or cooling, or for storing stored goods. It is used as a work space for performing inspections. As described above, air or fumigation gas for ventilation or cooling is supplied by utilizing the annular space 8, and a duct for supplying the air or gas is separately provided in the silo main body 2.
As compared with the case where the storage object A is provided in a crosswise manner, it is possible to suppress the formation of a bridge in the storage object A at the time of discharging the storage object A, and it is possible to smoothly discharge the storage object A. .

At the lower end of the silo main body 2, as shown in FIGS.
A forced discharge device having a screw feeder 31 for discharging the storage object A from the silo main body 2 is provided below each discharge port 9, and the screw feeder 31 is provided.
A conveyor 32 is provided below the table. By using the screw feeder 31 in this way, the opening area of the discharge port 9 can be set to be sufficiently large, and the formation of a bridge in the storage object A can be more effectively prevented. However, the present invention can be similarly applied to a normal silo main body 2 having one discharge port 9 and not having the upper hopper 6. Also,
As the forced discharge device, a table feeder, a screver, or the like can be used in addition to the screw feeder 31. At a substantially central portion of the upper wall portion 7, as shown in FIG. 1, an inlet 7 a for charging the storage object A into the silo main body 2 is formed. Are attached. A temperature sensor 3 for measuring the temperature of the storage object A is provided in the middle of each wire 33.
4 are provided at regular intervals in the height direction, and are configured so that the temperature distribution of the storage object A stored in the silo main body 2 can be measured by the plurality of temperature sensors 34.

As shown in FIG. 2, the ventilation means 12 is used in common with a blower 35 used in common with existing fumigation equipment and an existing air-conditioning equipment used for setting the temperature of the material A to be stored at 20 to 25 ° C. And an air-conditioning means 38 including a cooling coil 37. However, if the purpose is only to prevent the ignition of the stored matter A by bacteria, it is only necessary to ventilate the inside of the silo main body 2.
The air conditioner 38 can be omitted. The silo main body 2 is provided with an air introduction passage 40 connected to the annular space 8 for introducing temperature-controlling air for ventilation, fumigation gas, and the like into the silo main body 2. , Cooling coil 37, second on-off valve V2, blower 3
5. A third on-off valve V3 is interposed, and the fumigation gas is supplied from the vaporizer 41 between the blower 35 and the second on-off valve V2. In order to discharge air to the outside of the silo main body 2, an air discharge passage 42 that opens into the upper space of the silo main body 2 is provided in the upper wall portion 7 of the silo main body 2, An on-off valve V4 is provided.
Circulation path 43 for circulating air in silo body 2
But an air discharge passage 42 upstream of the fourth on-off valve V4,
Air introduction path 4 between the connection of carburetor 41 and second on-off valve V2
0, and a fifth on-off valve V5 and a sixth on-off valve V6 are provided at the upstream end and the downstream end of the circulation path 43, respectively.

In this silo facility 1, when fumigation of the storage object A is performed, the on-off valves V2 and V4 are closed, and the on-off valves V3, V5 and V6 are opened. While supplying, the fumigation gas in the silo main body 2 is circulated by the blower 35 through the circulation path 43, and the storage object A is fumigated. On the other hand, when ventilating the inside of the silo body 2, the on-off valves V5 and V6 are closed, and the on-off valves V1, V2, V3 and V4 are opened, and the solenoid valve V
7, V8 is released and the cooling coil 37
Silo body 2 with blower 35 while circulating refrigerant to
Supply temperature-controlled air for ventilation to the inside. Such ventilation in the silo main body 2 is performed for the purpose of suppressing the propagation of bacteria and preventing the ignition of the storage object A, but for other purposes, for example, deterioration of the storage object A due to an increase in temperature or humidity. It may be performed for the purpose of prevention. In addition, when performed for the purpose of suppressing the growth of bacteria, ventilation may be performed periodically, or when the temperature of the storage object A measured by the temperature sensor 34 becomes a predetermined temperature lower than the ignition temperature. May be ventilated.

By the way, in the silo main body 2, the separating means 1 is provided.
Since the storage object A consisting of the granular material separated at 0 or the storage object A consisting of the granular shaped product molded by the molding means 11 is filled, the granular material is put into the silo body 2 as it is. The air permeability in the silo main body 2 is remarkably improved as compared with the case where it is stored. For this reason, while using a small blower 35, it is possible to circulate fumigation gas inside the silo main body 2 or supply air for ventilation temperature control to the silo main body 2. Further, in the blower 35, the ventilation temperature control air is pressure-fed to the annular space 8, so that the ventilation temperature control air is adiabatically compressed in the blower 35 and its temperature rises by about 10 ° C. For this reason, it is preferable to arrange the cooling coil 37 on the upstream side of the blower 35 as described above, since humidity can be reduced as compared with the cooling coil 37 on the downstream side. That is, the case where the temperature of the storage object A is set to 20 to 25 ° C. will be described as an example.
If the cooling coil 37 is arranged on the downstream side of the blower 35, the cooling coil 37 cools the outside air to 10 to 15 ° C. Since only the outside air is cooled down to 20 to 25 ° C., the former, which can set the cooling temperature lower, can reduce the humidity of the ventilation temperature control air.

As shown in FIG. 1, the storage object A thus stored is transferred to the conveyor 3 via a screw feeder 31.
2 and then shipped from the conveyor 32 to the lifter 14 again.
It is preferable to ship after removing the powder contained therein. Further, the powder separated in this manner may be processed into a pellet-shaped molded product as described above, and may be shipped alone or with the separated granules. That is, the powder may be separated from the storage object A by the vibration when the storage object A is put into the silo main body 2 or when the storage object A is discharged by the screw feeder 31. By separating the product A again into powder and granules, the amount of separated powder in the stored product to be shipped can be minimized, and a high-quality stored product can be shipped. In this embodiment, the separating means 10 and the forming means 11 are provided in the silo equipment 1 in order to store the powder and granules in the silo equipment 1. However, when there is no problem such as ignition, the separating means 10 and the forming means 11 are used. Without using the means 11, it is also possible to store the powder, the granular material, or the granular material in the silo main body 2 as it is. In the case where the granules are stored in the silo main body 2 as they are in this way, the separation means 1 may be used when shipping the articles to be stored from the silo main body 2.
0, the powder may be separated into a powder and a granule, and the granule may be shipped as it is, and the powder may be formed into a granular shaped product by the molding means 11 before being shipped.

[0021]

According to the first aspect of the present invention, the granular material is once separated into the powder and the granular material by the separating means, and only the separated granular material is stored in the silo body as a storage object. Thus, since the ventilation resistance in the silo main body is reduced as much as possible and the inside of the silo main body can be ventilated by the existing small ventilation means, it is possible to reliably prevent the storage object from being ignited while effectively utilizing the existing facilities.

According to the silo facility of the present invention, the powder separated by the separating means is formed into a granular molded product by the forming means, and this is used as an article to be stored and a silo different from the granular material is used. Since the powder is stored in the main body, the airflow resistance in the silo main body can be significantly reduced as compared with the case where the powder is stored in the silo main body as it is. According to the silo facility of the third aspect, the powder and granules are separated into the powder and the granules by the wind separator, and the powder is separated from the air for the wind by the cyclone dust collector. It can be separated into powder and granules. Moreover, by circulating and supplying the air for wind separation separated by the cyclone dust collector to the wind separator, it is possible to reliably prevent the fine powder from being discharged to the outside, and to reduce the work environment due to the fine powder. Deterioration can be prevented.

According to the silo facility of the fourth aspect, the temperature of the storage object in the silo main body is measured by the measuring means, and the temperature of the storage object is lower than the ignition temperature.
Since the inside of the silo body is continuously or intermittently ventilated by the ventilation means, ignition of the stored matter can be reliably prevented. According to the silo facility of the fifth aspect, by providing the air-conditioning means, it is possible to reliably prevent ignition and deterioration of the stored matter due to the temperature rise. Moreover, by providing the air conditioning means upstream of the ventilation means, the humidity of the ventilation air supplied to the silo main body can be reduced, and the deterioration of the storage object due to the increase in humidity can be prevented.

According to the silo equipment of the sixth aspect, by providing the upper hopper above the lower hopper, a space in which the storage object is not filled between the upper and lower hoppers is formed, and the upper hopper is utilized by utilizing this space. It is possible to attach an air knocker or the like to the back surface, supply air or fumigation gas for ventilation or cooling, check stored items, and the like. Moreover, compared to the case where a duct or the like for supplying air or fumigation gas for ventilation or cooling is provided in the silo main body in a transverse manner, a bridge is formed in the storage object stored in the silo main body. Can be suppressed, and the stored matter can be efficiently discharged.

According to the seventh aspect of the present invention, by providing the forced discharge device having the screw feeder below the discharge port, the diameter of the discharge port can be set to be large, and the discharge of the storage object can be performed. It can be done more smoothly. According to the silo facility according to claim 8, it is possible to prevent the ignition of the hay cube as the storage object and to separate the powder contained in the hay cube to be carried out, so that the hay cube with less powder that is easy for livestock to eat can be obtained. Can be provided.

[0026] According to the method for storing and treating a granular material according to the ninth aspect, the granular material is separated into powder and granular material, and only the granular material is stored in the silo main body as a storage object. Since the ventilation resistance inside the silo body can be minimized and the existing small ventilation means can be used to ventilate the inside of the silo body, it is possible to prevent ignition of stored objects and the like while using existing facilities effectively. According to the storage treatment method according to claim 10, the powder separated by the separating means is formed into a granular shaped product by the forming means,
Since this molded article is stored as an article to be stored in a silo main body separate from the granules, the airflow resistance in the silo main body can be remarkably reduced as compared with the case where powder is stored as it is. Claim 1
According to the storage processing method described in 1 above, when the object to be stored is carried out from the silo main body, the powder is separated from the object to be stored again by the separating means, and the separated powder is granulated by the forming means. Since the molded product is shipped alone or with the granular material after the powder is separated, it is possible to provide a high-quality product with less powder content.

[Brief description of the drawings]

FIG. 1 is an overall configuration diagram of a loading / unloading system for stored articles in a silo facility.

FIG. 2 is an overall configuration diagram of a storage system for stored materials in a silo facility.

FIG. 3 is a longitudinal sectional view of a main part of a silo body.

FIG. 4 is a sectional view taken along line IV-IV of FIG. 3;

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 Silo equipment 2 Silo main body 4 Peripheral wall part 5 Lower hopper 6 Upper hopper 7 Upper wall part 7a Input port 8 Annular space 9 Discharge port 10 Separation means 11 Molding means 12 Ventilation means 13 Conveyor 14 Lifter 15 Air filter 16 Blower 17 Tank 18 Measuring device 19 Cyclone dust collector 20 Conveyor 21 Powder silo 22 Conveyor 23 Boiler 24 Dryer 25 Lifter 26 Conveyor 30 Air knocker 31 Screw feeder 32 Conveyor 33 Wire 34 Temperature sensor 35 Blower 36 Air-cooling refrigerator 37 Cooling coil 38 Air-conditioning means 40 Air-introducing means 40 Air Vaporizer 42 Air discharge path 43 Circulation path V1 First on-off valve V2 Second on-off valve V3 Third on-off valve V4 Fourth on-off valve V5 Fifth on-off valve V6 Sixth on-off valve V7 Solenoid valve V8 Solenoid valve

Continued on the front page (72) Inventor Akitoshi Shimada 3-21-18 Tanabe, Higashisumiyoshi-ku, Osaka-shi, Osaka (72) Inventor Tadashi Hasegawa 2-352-9, Matsugaoka, Nagareyama-shi, Chiba Prefecture (72) Inventor Kohei Kasai Chiba, Chiba Prefecture 8-22-16-103, Onakadai, Inage-ku, Shibuya-shi (72) Inventor Koichi Sato 1-3-36 Ishigami, Niiza-shi, Saitama

Claims (11)

[Claims] 1. Separating means for separating a granular material into a powder and a granular material, a silo main body storing only the granular material separated by the separating means as an object to be stored, and ventilating the inside of the silo main body. Silo equipment with ventilation means 2. A molding device for molding a granular molded product from the powder separated by the separating device, wherein the molded product molded by the molding device is used as a storage object and a silo different from the granular material. The silo facility according to claim 1, which is stored in a main body. 3. The method according to claim 1, wherein the separating means includes a wind separator for separating the powder and the granular material into powder and granular material by a wind filter, and a cyclone dust collector for separating the powder from the air for the wind filtering. 2. The silo equipment described in 2. 4. A measuring means for measuring the temperature of an object to be stored in the silo main body, wherein the air in the silo main body is continuously or intermittently ventilated so that the temperature of the object to be stored becomes lower than the ignition temperature. The silo facility according to any one of claims 1 to 3, wherein the silo is ventilated. 5. The silo facility according to claim 1, wherein an air conditioner is provided upstream of the ventilator. 6. The silo facility according to claim 1, wherein an upper hopper is provided above the lower hopper in a lower portion of the silo main body. 7. The silo facility according to claim 1, wherein a forced discharge means having a screw feeder is provided below a discharge port formed at a lower end of the silo main body. 8. The silo facility according to claim 1, wherein said powdery granule is a hay cube formed by shaving pasture into granules. 9. The method according to claim 1, wherein the granules are separated into powder and granules by a separating means, and only the granules are stored in the silo main body as a storage object so that the temperature of the storage object is lower than its ignition temperature. In addition, a method for storing and storing powder and granular materials, wherein the storage object is stored while the silo body is continuously or intermittently ventilated by a ventilation means. 10. The powder separated by the separating means is formed into a granular molded article by a molding means, and the molded article is stored as an article to be stored in a silo main body separate from the granules. Storage processing method of granular material. 11. When the object to be stored is carried out of the silo main body, the powder is separated from the object to be stored again by the separating means, and the separated powder is formed into a granular shaped article by the forming means. The method according to claim 9 or 10, wherein the molded article is carried out alone or together with the storage target after powder separation.