Ignition-suppressing storage device

Abstract

Provided is an ignition-suppressing storage device having functions of suppressing and preventing fire occurrence. The ignition-suppressing storage device comprises: an enclosure in which a main body and a cover are coupled to each other to form a sealed structure, defining an accommodation space in which combustible articles are stored; and an ignition-suppressing agent that fills the interior of the accommodation space, has a porous particle structure which is formed by shaping a mixed powder containing waste glass powder and a foaming agent into a particulate form and then subjecting same to a foaming process, has a plurality of pores formed in the inner portion and on the surface thereof, and includes an inert gas within the pores.

Description

Fire suppression storage device

[0001] The present invention relates to a storage device for storing and transporting flammable substances or combustible materials that have a risk of rapid ignition, such as waste batteries, and more specifically, to a fire-suppressing storage device having a function of suppressing and preventing fire occurrence.

[0002] The recent rapid increase in the use of rechargeable secondary batteries has also increased the risk of fire. Lithium-ion batteries, widely used in electric vehicles, mobile phones, drones, and other devices, offer advantages in energy storage capacity and output. However, they are also known to carry a high risk of accidents caused by rapid overheating and explosion, known as thermal runaway.

[0003] In particular, the risk of ignition of these secondary batteries increases under various conditions, including internal short circuits, external impact, external heat sources, electrical abnormalities, and corrosion. Therefore, both new and used batteries require careful handling. Conventional fire prevention structures and fire extinguishing devices (e.g., Republic of Korea Patent Publication No. 10-2024-0037664) have been unable to address the potential hazards of these highly flammable materials.

[0004] Therefore, the need for safety enhancement during storage and transportation of combustible materials such as waste batteries is becoming increasingly important.

[0005] Meanwhile, other industrial facilities, such as solar power plants, also generate large amounts of waste, and various methods for their disposal are being explored. For example, the tempered glass used in solar panels can be melted down and recycled, or dismantled and reused in its original form. However, this does not necessarily limit the utilization of waste resources. Furthermore, technological development for fire suppression related to rapidly igniting materials, which has been on the rise recently, should also be considered.

[0006] This invention was developed with the support of a national research and development project, and information on the national research and development project supporting this invention is as follows.

[0007] Assignment ID: 2022003170

[0008] Assignment Number: 2022003170007

[0009] Ministry Name: Ministry of Environment

[0010] Project Management (Professional) Organization Name: Korea Environmental Industry & Technology Institute

[0011] Research Project Name: Green Innovation Enterprise Growth Support Program (Commercialization)

[0012] Research Project Name: Development of Resource Recycling Process Technology for Waste Solar Panels and Commercialization of the Technology

[0013] Project execution organization name: Wonkwang S&T Co., Ltd.

[0014] Research Period: April 1, 2022 - December 31, 2024

[0015] <Reference prior art literature>

[0016] (Patent Document 1) Republic of Korea Patent Publication No. 10-2024-0037664, (March 22, 2024)

[0017] The technical task of the present invention is to solve these problems, and to provide a fire-suppressing storage device capable of suppressing and preventing the ignition of flammable materials or combustible substances with a risk of rapid ignition, such as waste batteries, and at the same time, to provide a more effective utilization technology for waste resources (such as tempered glass from waste solar panels). In addition, the present invention provides a fire-suppressing storage device that prevents fires of flammable materials or combustible substances with a risk of rapid ignition by controlling ignition conditions to suppress ignition itself, rather than extinguishing the fire after it has occurred.

[0018] The technical problems of the present invention are not limited to the problems mentioned above, and other technical problems not mentioned will be clearly understood by those skilled in the art from the description below.

[0019] The fire-retardant storage device according to the present invention comprises a body in which a main body and a cover are connected to each other to form a sealed structure and a storage space is formed inside for storing flammable stored materials; and a fire-retardant filled inside the storage space, the fire-retardant being formed by forming a mixed powder containing glass powder and a foaming agent into a particle form and then foaming to form a porous particle structure, and having a plurality of pores formed inside and on the surface, and containing an inert gas inside the pores.

[0020] The above inert gas is fixed inside the pores by physical adsorption, and the pores can be formed to have a size 1.5 to 10 times the molecular size of the inert gas.

[0021] The above inert gas is nitrogen, and the size of the pores may be 0.5 to 4 nm.

[0022] The above cover can be sealed to maintain the airtightness of the above-mentioned storage space.

[0023] The above-mentioned container may further include a pressure regulating valve for regulating the pressure inside the receiving space.

[0024] The above pressure regulating valve can maintain the inside of the receiving space at positive pressure.

[0025] The above fire suppressant may surround the flammable storage material and be attached to the inner wall of the container.

[0026] The above-mentioned container has a main body formed at the bottom and a cover covering the main body to form a sealed structure, and the cover is recessed at the top to form the receiving space inside and cover the flammable storage material, and the fire suppressant can be attached to the inner wall of the cover.

[0027] The above-mentioned fire suppressant can be fixed to the inner wall of the container by a fixing means that is released above a critical temperature.

[0028] The above body is recessed downward to form the receiving space and may further include an outlet through which the fire suppressant is discharged at the lower portion.

[0029] Another fire-retardant storage device according to the present invention comprises: a container in which a main body and a cover are connected to each other to form a sealed structure and a storage space is formed inside for storing flammable stored materials; and a fire-retardant filled inside the storage space, the fire-retardant having a porous particle structure formed through a foaming process after a mixed powder including glass powder and a foaming agent is formed in the form of particles, and a plurality of pores are formed inside and on the surface, and an inert gas is included inside the pores, wherein the size of the pores of the fire-retardant is formed to be 1.5 to 10 times the molecular size of the inert gas, and the oxygen concentration inside the pores can be maintained at 10% or less.

[0030] The above fire suppressant may include a first particle structure in which the internal pore structures are independently formed to form an independent pore structure with the pores separated from each other, and a second particle structure in which the internal pore structures are connected to each other to form a connected pore structure in which the pores are connected to each other.

[0031] The above inert gas may be contained in only one of the first particle structure and the second particle structure.

[0032] The above fire suppressant surrounds the flammable storage material and is attached to the inner wall of the container, and the first particle structure and the second particle structure can be attached to each other in layers and overlap each other.

[0033] The above-mentioned container has a main body formed at the bottom and a cover covering the main body to form a sealed structure, and the cover is recessed at the top to form the receiving space inside and cover the flammable storage material, and the fire suppressant can be attached to the inner wall of the cover.

[0034] According to the present invention, it is possible to store and transport combustible materials or flammable substances with a risk of rapid ignition, such as waste batteries, while suppressing and preventing ignition. The present invention has the function of suppressing ignition of combustible materials or flammable substances, such as waste batteries, in situations where they may ignite due to internal or external factors, and is therefore excellent for preventing casualties and disasters caused by fire. Furthermore, by controlling ignition conditions and suppressing ignition, the present invention prevents fires in combustible materials with a risk of rapid ignition, making it an effective alternative even in situations where separate fire extinguishing equipment is difficult to install. Furthermore, when used in conjunction with fire extinguishing equipment, a synergistic fire prevention effect can be achieved, effectively suppressing and extinguishing fires. Therefore, the present invention can be effectively utilized as a safety device in high-risk industries that handle waste batteries or flammable substances. Furthermore, it also provides a technology for more effective utilization of waste resources (such as tempered glass from waste solar panels), thereby contributing to resource recycling and environmental conservation.

[0035] Figure 1 is a perspective view of a fire suppression storage device according to one embodiment of the present invention.

[0036] Figure 2 is a cross-sectional view and a detailed structural diagram of the fire suppression storage device of Figure 1.

[0037] Figure 3 is a cross-sectional view showing an enlarged view of the internal pore structure of the fire suppressant granules (porous particle structure) of Figure 2.

[0038] Figure 4 is an operational diagram showing the inert gas discharge action by heat of each porous particle structure of Figure 3.

[0039] Figure 5 is an operational diagram showing the discharge action of an inert gas for the porous particle structure laminated structure of Figure 4.

[0040] Figure 6 is a drawing showing a modified example of a fire suppression storage device.

[0041] Figure 7 is an operational diagram showing the shielding action of a fire suppressant when a combustible storage material (ignition source) is heated.

[0042] Figure 8 is a diagram showing the state of use of the ignition suppression action when a combustible storage material is heated.

[0043] Figure 9 is a perspective view of a fire suppression storage device according to another embodiment of the present invention.

[0044] Figure 10 is a cross-sectional view showing the internal structure of the ignition suppression storage device of Figure 9.

[0045] Figure 11 is an operational diagram illustrating the ignition suppression agent granule discharge operation of the ignition suppression storage device of Figure 9.

[0046] The advantages and features of the present invention, as well as the methods for achieving them, will become clearer with reference to the embodiments described in detail below together with the accompanying drawings. However, the present invention is not limited to the embodiments disclosed below and may be implemented in various different forms. These embodiments are provided only to ensure that the disclosure of the present invention is complete and to fully inform those skilled in the art of the scope of the invention, and the present invention is defined solely by the claims. Like reference numerals designate like elements throughout the specification.

[0047] Hereinafter, a fire suppression storage device according to the present invention will be described in detail with reference to FIGS. 1 to 11. First, one embodiment of the present invention will be described with reference to FIGS. 1 to 8, and then another embodiment of the present invention will be described in detail based on the description.

[0048] The fire suppressant of the present invention may be particles having a diameter of several to several tens of millimeters, and the pores may be in the nanometer range, so the size of the pores may be exaggerated in the drawings. The size and shape of the gas molecules may also be exaggerated and simplified in the drawings for effective explanation.

[0049] FIG. 1 is a perspective view of a fire-prevention storage device according to one embodiment of the present invention, and FIG. 2 is a cross-sectional view and a detailed structural diagram of the fire-prevention storage device of FIG. 1.

[0050] Referring to Fig. 1, a fire-retardant storage device (1) according to the present invention has a fire-retardant (200) built into a sealable case (100). The fire-retardant (200) is in the form of granules and is composed of a porous particle structure (210, 220) having a plurality of pores (201) distributed on the surface and inside. Since the fire-retardant (200) is sealed inside the case (100), the present invention can prevent ignition by covering a flammable storage material (a) (e.g., a flammable material with the potential for rapid ignition, such as a spent battery) stored inside the case (100) with the fire-retardant (200).

[0051] The fire suppressant (200) can be fixed to the inner wall of the container (100) by a fixing means (122) or can be freely accommodated within the container (100). When fixed by the fixing means (122), the fixing is automatically released when the temperature rises (e.g., the fixing means formed of a fine mesh, etc. is melted by heat and dismantled), thereby covering the entire flammable storage material (a) with the fire suppressant (200) (see Fig. 7).

[0052] In particular, the fire suppression agent (200) contains an inert gas (see 202 in FIG. 3) inside the pores (201). The inert gas (202) (e.g., nitrogen) molecules are fixed by physisorption inside the micropores (201) and when heated, they are discharged from the pores (201), thereby blocking the space between the fire suppression agents (200) and preventing the inflow of oxygen. Therefore, even if the temperature of the combustible stored material (such as a used battery) rises to a temperature corresponding to the ignition point, the combustion conditions may not be met, so that ignition may be suppressed. That is, the fire suppression storage device (1) is extremely effective in suppressing and / or extinguishing fire because when the temperature rises, the inert gas (202) is automatically discharged (see FIG. 4) from the fire suppression agent (200) covering the combustible stored material (a), completely sealing the space.

[0053] The fire-prevention storage device (1) of the present invention is configured as follows. The fire-prevention storage device (1) includes a body (100) in which a main body (110) and a cover (120) are connected to each other to form a sealed structure and a storage space in which a flammable storage material (a) is stored is formed inside, and a fire-prevention agent (200) filled inside the storage space, in which a mixed powder containing glass powder and a foaming agent is formed in the form of particles and then formed into a porous particle structure (210, 220) through a foaming process, and in which a plurality of pores (201) are formed inside and on the surface, and in which an inert gas (see 202 of FIG. 3) is included inside the pores (201).

[0054] The porous particle structure (210, 220) constituting the fire retardant (200) can be formed by foaming glass powder, and in particular, can be reused by recycling waste glass powder. Therefore, it is effective for resource recycling and is environmentally friendly. In addition, since the interior is hollow due to the foaming process, it is light and convenient to handle. Since the porous particle structure can also be formed using general glass powder, the material need not be limited to waste glass powder, etc. The method for manufacturing the fire retardant will be described later.

[0055] In one embodiment of the present invention, the porous particle structure (210, 220) may be composed of two types. The porous particle structure (210, 220) may include a first particle structure (210) in which the internal pore structures are independently formed to form an independent pore structure in which the pores (201) are separated [see (b) of FIG. 3], and a second particle structure (220) in which the internal pore structures are connected to each other to form a connected pore structure in which the pores (201) are connected [see (a) of FIG. 3]. The first particle structure (210) and the second particle structure (220) may be mixed with each other to form the porous particle structure (210, 220). The fire suppressant (200) means including the porous particle structure (210, 220) and an inert gas (202) embedded in the particle structure. The first particle structure (210) and the second particle structure (220) can control the capacity of the inert gas (202) by utilizing different pore structures, and can also provide an insulating effect that prevents heat transfer between the combustible storage material (a) and the outside. Therefore, a further improved fire prevention effect can be expected. Hereinafter, the configuration and operational effects of the present invention will be described in more detail based on one embodiment of the present invention.

[0056] First, the body will be described with reference to FIGS. 1 and 2, and then the fire suppressant will be described in more detail.

[0057] Referring to Fig. 1, the container (100) is formed as a sealed structure. The container (100) includes a main body (110) and a cover (120), and the main body (110) and the cover (120) can be combined to form a sealed structure. When the main body and the cover are combined, a storage space for accommodating a combustible storage item (a) is formed inside the sealed container (100), and the combustible storage item (a) can be sealed and stored inside the storage space. The storage space can be formed to be larger than the size and volume of the combustible storage item, etc. Preferably, the storage space can be formed to be large enough to accommodate a fire suppressant (200) that can completely cover the combustible storage item (a).

[0058] The container (100) can have various shapes, but a structure in which the entire cover (120) is formed in an inverted container shape as in this embodiment to completely cover the main body (110) can be advantageous for shielding flammable stored items. That is, an effective sealed structure can be formed by placing the main body (110) as a lower plate, placing the flammable stored item (a) thereon, and covering it with the cover (120). The container (100) forms a sealed structure in which the main body (110) is formed at the lower portion and the cover (120) covers the main body (110), and the cover (120) can be formed to be recessed upward so that a receiving space is substantially located inside the cover (120). Through this, the flammable stored item (a) can be covered. In this case, the fire suppressant (200) can be attached to the inner wall of the cover (120) as illustrated.

[0059] As illustrated in FIGS. 1 and 2, the fire suppressant (200) can be attached to the inner wall of the container (100) and surround the combustible storage (a). That is, the fire suppressant (200) can be secured to the inner surface of the cover (120) which is formed convexly upward and has a receiving space formed therein, so that the entire combustible storage (a) can be surrounded by the fire suppressant (200). The cover (120) can have a rectangular, upwardly bulging, inverted container shape. The body (110) can have a structure in which the edge portion protrudes upward to overlap and seal with the cover (120). Various gap-blocking structures, such as a gasket, can also be applied between the body (110) and the cover (120).

[0060] Referring to FIGS. 1 and 2, the fire suppressant (200) can be fixed to the inner wall of the container (100) by an appropriate fixing means (122). In particular, the fire suppressant (200) can be fixed to the inner wall of the container (100) by a fixing means (122) that is automatically released (or dismantled) above a critical temperature, and thus can be formed to fall from the inner wall and cover the flammable stored material (a) by its own weight when the temperature rises (see FIG. 7). The fixing means (122) can be formed, for example, as in (c) of FIG. 2, by a fine mesh that is melted by heat at a critical temperature (e.g., a meltable material that melts at a specific temperature is applied to part or all of the fine mesh).

[0061] When forming the fixing means (122) with a fine mesh, etc., the woven shape of the mesh can be formed into a shape corresponding to the shape of the cover (120) or the container (100), and can be formed to have an appropriate volume so that a sufficient amount of the fire suppressant (200) can be embedded therein. An adhesive material, etc. can be applied between the fixing means (122) and the container (100) to fix the fire suppressant at a desired position. The mesh of the fine mesh can be formed to be smaller than the diameter of the first particle structure (210) described later so that the fire suppressant (200) particles are not normally discharged to the outside. By applying the fixing means (122) in this form, the fire suppressant (200) particles can be fixed to the inner wall of the container (100).

[0062] However, the fixing means (122) is not limited thereto, as other structures or methods capable of fixing the ignition suppressant (200) are also possible. The fixing means (122) can also be changed to various methods or structures capable of automatically releasing the fixing state at a critical temperature.

[0063] Since the container (100) has a sealed structure in which the main body (110) and the cover (120) are combined, the internal storage space is kept airtight. Therefore, it is highly desirable to apply a pressure regulating valve (121) to one side of the container (100) to regulate the pressure inside the storage space. The pressure regulating valve (121) can maintain the inside of the storage space at a positive pressure, thereby preventing oxygen from flowing into the inside from the outside of the container (100). In particular, as described below, when an inert gas (see 202 of FIG. 4) is discharged from the pores of the fire suppressant (200) and the internal pressure increases, the internal pressure of the container (100) can be maintained at a higher level than the outside through appropriate pressure control. Therefore, by maintaining the inside of the container filled with the inert gas at a positive pressure, the inflow of oxygen into the inside of the container (100) can be more effectively blocked.

[0064] The pressure regulating valve (121) may be, for example, a mechanical valve that is automatically operated by the pressure difference between the inside and outside of the container (100), and may also be configured as an electronic valve that is operated by a sensor (pressure sensor) applied to the inside and outside of the container (100) if necessary, so it is not necessary to be limited to a specific form. The pressure regulating valve (121) may be implemented by applying various valve structures within the limit that the pressure difference between the inside and outside of the container (100) can be detected and the pressure inside the container (100) can be maintained not lower than the outside (more preferably higher - especially when an inert gas is discharged). The container (100) may be formed in this form and a fire suppressant (200) may be built into the container.

[0065] Figure 3 is a cross-sectional view showing an enlarged view of the internal pore structure of the fire suppressant granules (porous particle structure) of Figure 2.

[0066] Referring to FIG. 3, the fire suppressant (200) is formed of a porous particle structure (210, 220) having a plurality of pores (201). The porous particle structure (210, 220) forming the fire suppressant may include a first particle structure (210) and a second particle structure (220), and the fire suppressant may be formed by mixing these. The first particle structure (210) and the second particle structure (220) have different sizes, so that they can fill the empty space more effectively. For example, a first particle structure (210) having a smaller diameter than a second particle structure (220) having a relatively larger diameter may be inserted between the second particle structures, so that the empty space between the particle structures can be minimized (see FIG. 5).

[0067] The first particle structure (210) and the second particle structure (220) may be spherical or approximately spherical porous particles having a diameter of several millimeters to several tens of millimeters. However, the diameter of the particle structure can be adjusted if necessary, so the size need not be limited to the example. As described below, the size of each particle structure can be adjusted during the foaming process, and the internal pore structure can also be changed.

[0068] Referring to FIG. 3, the first particle structure (210) and the second particle structure (220) can be formed as a foam having a plurality of pores (201) on the surface and inside. The first particle structure (210) and the second particle structure (220) can be formed from foamed glass, and, if necessary, may include other additives or mixtures in addition to glass. In particular, a particle structure having micropores (201) can be manufactured by mixing waste glass powder (e.g., tempered glass powder recovered from waste solar panels, etc.) and a foaming agent, forming the mixture into a particle form (e.g., droplets), and then foaming at a high temperature (e.g., several hundred degrees Celsius).

[0069] The first particle structure (210) and the second particle structure (220) may each have different pore structures. The pore (201) structure can be controlled in the foaming process and the process of mixing the foaming agent and the glass powder, and the pore (201) structure and the size of each particle structure can be controlled by controlling the amount of the foaming agent, the mixing time and speed of the foaming agent, the adjustment of the additives, the foaming temperature, the heating speed, the foaming time and cooling temperature, the cooling speed, and the cooling time. As illustrated, the first particle structure (210) may have internal pore (201) structures that are independently formed to form independent pore (201) structures in which the pores (201) are separated from each other, and the diameter may be relatively small. The second particle structure (220) may have internal pore (201) structures that are interconnected to form connected pore (201) structures in which the pores (201) are connected, and the diameter may be relatively large. Therefore, they can have different physical properties due to differences in pores (201).

[0070] The first particle structure (210) can have excellent insulation performance due to the independent pore (201) structure. That is, the independent pores (201) that are empty inside and separated from each other can act as an insulation layer to improve the insulation effect. Therefore, in a situation where there is a possibility of fire, heat transmission from a flammable stored object (e.g., a used battery, etc.) to the outside can be suppressed through heat blocking using the first particle structure (210) (or vice versa). The first particle structure (210) can also partially include an inert gas (202) in the pores (201) formed on the surface, so that the inert gas (202) can be discharged under high temperature conditions.

[0071] The second particle structure (220) allows the inert gas (202) to more easily penetrate into the interior due to the interconnected pore (201) structure in which the pores (201) are interconnected. Therefore, since the capacity to accommodate the inert gas (202) is large, it functions as a storage for the inert gas (202). In fact, most of the inert gas (202) contained in the fire suppressant (200) can be stored in the second particle structure (220). The inert gas (202) can be fixed by physical adsorption in the interior of the second particle structure (220). Since the second particle structure (220) has a large diameter, the amount of pores (201) also increases dramatically, and since these pores are interconnected in the interconnected pore (201) structure, it is extremely advantageous for capturing the inert gas (202). An inert gas (202) can be injected into the pores (201) of the particle structure through a pressure-induced injection process inside a vacuum chamber or a decompression chamber. The manufacturing process will be described later.

[0072] The inert gas (202) may be included in only one of the first particle structure (210) and the second particle structure (220), and in such a case, only the particle structure including the inert gas may be repeatedly filled to maintain the concentration of the inert gas (202). In the present embodiment, the second particle structure (220) having a connected pore structure functions as the main storage for the inert gas (202). However, it is not impossible for the first particle structure (210) to also partially include the inert gas on its surface.

[0073] The first particle structure (210) and the second particle structure (220) have different diameters and can be separated using a sieve or the like. In particular, the concentration of the inert gas (202) can be continuously maintained by separating the second particle structure (220) that mainly captures the inert gas (202) and then reinjecting the inert gas (202). That is, the present invention is economical because it can be reused by recharging even after the inert gas (202) is discharged. In addition, the possibility of natural discharge of the inert gas (202) due to long-term use can be resolved by repeatedly recharging the second particle structure (220). If necessary, the first particle structure (210) and the second particle structure (220) can be formed so that they can be distinguished by color or the like in addition to size.

[0074] The size of the pores (201) of these porous particle structures (210, 220) may preferably be formed to be 1.5 to 10 times the molecular size of the inert gas (202) accommodated in the pores. More preferably, the inert gas (202) may be nitrogen, and the size of the pores (201) may be approximately 0.5 to 4 nm. Since the size of a nitrogen molecule is known to be approximately 3.6 angstroms (1 angstrom = 0.1 nm), the interaction between the nitrogen molecules and the particle structure can be increased with the size of the pores (201), so that the nitrogen molecules can be effectively fixed to the pores (201). If the pores are smaller than the above range, it may be difficult to capture inert gas (e.g., nitrogen) molecules, and if the pores are larger than the above range, it may be difficult to fix inert gas molecules, so it is highly preferable to apply the pores (201) to have a size within the above range.

[0075] The inert gas (202) can be fixed within the pores (201) by physical adsorption. For example, adsorption can be due to intermolecular attraction by van der Waals forces and can be enhanced by an increase in the interaction area within a porous structure with a large surface area. In addition, physical restraint by the porous structure of connected pores (201), adsorption to adsorption sites (e.g., micro-defect sites) formed on the surface or inside of the porous particle structure (210, 220) of the foam, etc. are also possible, so the inert gas within the pores (201) can be fixed in various ways including these. Since the inert gas (202) cannot easily escape once fixed within the pores until sufficient thermal energy is supplied, it can be utilized as a fire suppressant (200) in various situations. As described above, the inert gas (202) can be injected in large quantities into the connected pores (201) of the second particle structure (220) having a connected pore (201) structure.

[0076] Since the internal pores (201) of the porous particle structure (210, 220) are filled with an inert gas (202), the oxygen concentration inside the pores (201) can be substantially less than 10%. That is, the oxygen concentration inside the pores of the particle structure can be reduced by injecting an inert gas. This oxygen concentration is lower than the oxygen concentration in the atmosphere (approximately 20%) and generally falls short of the conditions for maintaining combustion (e.g., an oxygen concentration of 15 to 16%), so it is extremely effective in suppressing ignition.

[0077] In this respect, the present invention can also be understood as having the following configuration. That is, the fire-retardant storage device includes a case (see 100 in FIG. 1) in which a main body and a cover are connected to each other to form a sealed structure as described above and a storage space in which flammable stored materials are stored is formed inside, and a fire-retardant (200) filled inside the storage space, in which a mixed powder containing glass powder and a foaming agent is formed in the form of particles and then formed into a porous particle structure through a foaming process, and in which a plurality of pores are formed on the inside and the surface, and which contains an inert gas inside the pores, wherein the size of the pores (201) of the fire-retardant (200) is formed to be 1.5 to 10 times the molecular size of the inert gas (202), and the oxygen concentration inside the pores (201) may be maintained at 10% or less.

[0078] Such a fire suppressant (200) is made of a non-combustible material (molded with glass or waste glass powder) and is a porous particle structure (210, 220) having a large number of pores (201) formed therein, so it is light, and not only does the oxygen concentration level be as low as 10% or less, but it also has an inert gas (202) built into the pores (201) (particularly, the connecting pores of the second particle structure) that can be automatically discharged, so that it can effectively suppress the ignition of flammable stored materials (e.g., waste batteries, etc.) in situations where there is a risk of fire, as follows. The action and effect of the fire suppressant will be described in more detail below.

[0079] FIG. 4 is an operational diagram showing the inert gas discharge action by each heat of the porous particle structure of FIG. 3, and FIG. 5 is an operational diagram showing the inert gas discharge action for the porous particle structure stack structure of FIG. 4.

[0080] First, referring to FIG. 4, when heat (H) (e.g., heat generated by an abnormality in a spent battery) is supplied from the outside to the fire suppressant (200) of the present invention, the inert gas (202) inside expands (or increases in volume due to molecular motion of the gas) and escapes from the pores (201). The discharge temperature of the inert gas (202) may be lower than the ignition point of the flammable stored material (e.g., spent battery). In particular, a large number of inert gas (202) molecules that were fixed by physisorption in the second particle structure (220) having connecting pores (201) are discharged outside the pores (201) when the temperature rises and penetrate into the space around the fire suppressant (200), and at the same time, the first particle structure (210) blocks heat transfer around the combustible storage material with the insulating effect of the independent pore (201) structure, thereby preventing fire in another way. It is also possible to partially discharge the inert gas (202) from some of the first particle structures (210) to increase the concentration of the inert gas (202). That is, the present invention more effectively suppresses ignition and fire spread by combining the shielding effect of the inert gas (202) discharged by the second particle structure (220) and the insulating effect of the first particle structure (210).

[0081] Referring to FIG. 5, this action can occur simultaneously in the entire stacked structure of the first particle structures (210) and the second particle structures (220) that are stacked on top of each other. That is, as in (a) of FIG. 5, the mixture of the first particle structures (210) and the second particle structures (220) that are stacked in a dense state effectively blocks the inflow of oxygen by itself because the large ones [the second particle structures (220)] and the small ones [the first particle structures (210)] are mixed to eliminate empty spaces, but when the combustible stored material (such as an internal abnormality of a used battery) is overheated and heat (H) is transferred, as in (b) of FIG. 5, the inert gas (202) is discharged due to the temperature increase, and all the microscopic spaces between the particles are filled with the inert gas (202). Therefore, since it is impossible for oxygen (or air containing it) to actually enter the internal space (the internal space where combustible stored items are protected) covered with a fire suppressant (200), fire is prevented extremely effectively.

[0082] Since the fire suppression storage device has a structure in which the fire suppression agent (200) is sealed inside the body, the fire suppression effect is maximized by the combination of the sealed structure of the body (see 100 in FIG. 1) described above, the fire suppression agent (200) fixing means (see 122 in FIG. 2) that automatically releases at a critical temperature to discharge the fire suppression agent (200), and the pressure regulating valve (see 121 in FIG. 1) that maintains the internal pressure of the body (100) at positive pressure. Hereinafter, after describing a simple modified example, the fire suppression and fire prevention function of the fire suppression storage device will be described in more detail.

[0083] Fig. 6 is a drawing showing a modified example of a fire suppression storage device, Fig. 7 is an operation diagram showing the shielding operation of a fire suppression agent when a flammable storage object (ignition source) is heated, and Fig. 8 is a use state diagram showing the fire suppression action when a flammable storage object is heated.

[0084] Referring to FIG. 6, when the fire suppressant (200) surrounds the combustible storage material (a) and is attached to the inner wall of the container (100), the first particle structure (210) and the second particle structure (220) can be separately fixed. That is, the fire suppressant (200) can be attached in a mixed form of the first particle structure (210) and the second particle structure (220), as in (a) of FIG. 6, but can also be attached in a form in which the first particle structure (210) and the second particle structure (220) are each layered and overlapped, as in (b) of FIG. 6. In a case such as (b) of Fig. 6, the second particle structure (220), which is the main location of the inert gas (202), can be separately placed on the inner layer adjacent to the combustible storage material (a), and the first particle structure (210) having an insulating function can be separately placed on the outer layer in contact with the container (100).

[0085] In this case, a space dividing part (122a) that functions as a kind of separation net can be installed in the center of the aforementioned fixing means (122). That is, a space dividing part (122a) that divides the space by forming a layer in the middle of the fixing means (122) formed by a fine mesh can be configured in the form of a mesh, etc., so that the first particle structure (210) and the second particle structure (220) can be separated and arranged. In this form, the fixing form of the fire suppressant (200) can also be partially changed.

[0086] By the above-described configuration, the ignition-suppressing storage device (1) suppresses ignition of flammable stored materials (a) accommodated in the case (100) as illustrated in FIGS. 7 and 8, thereby preventing fire. In particular, flammable stored materials such as waste batteries that are prone to explosion (e.g., can be overheated by various factors such as internal short circuits, external impacts, external heat sources, electrical abnormalities, and corrosion) are suppressed from ignition in advance and maintained within the case, thereby preventing fire accidents extremely effectively. The ignition-suppressing process may be as follows.

[0087] First, as shown in (a) of Fig. 7, when the combustible storage material (a) is in a normal state (not overheated), the container (100) is maintained in a sealed state to block unnecessary oxygen inflow. The fire suppressant (200) granules are fixed to the inner wall of the container (100) by the fixing means (122) and surround the combustible storage material (a), so that heat flowing in from the outside can also be blocked by the insulating effect (the insulating effect of the first particle structure). In normal times, the combustible storage material (a) can be stored in this manner.

[0088] On the other hand, as in (b) of Fig. 7, when heat (H) is generated in the combustible storage material (a) and it overheats, the fire suppressant (200) breaks away from the fixing means [122 of Fig. 7 (a)] and completely surrounds the entire combustible storage material (a). That is, the fixing means (122) of Fig. 7 (a) is automatically released from the fixing state (e.g., the aforementioned fine mesh is melted and dismantled by heat, etc.) at a critical temperature (e.g., a temperature lower than the ignition point of the combustible storage material) and releases the fire suppressant (200). Therefore, when the temperature rises, the fire suppressant (200) granules can fall toward the combustible storage material (a) and completely shield its periphery.

[0089] At the same time, the inert gas (202) is also discharged from the ignition suppressant (200) due to the temperature rise. Therefore, the gap around the combustible storage object (a) is filled with the inert gas (202) and is more effectively sealed. Furthermore, since the container (100) itself has a sealed structure, the entire interior of the container (100) functions as a completely sealed structure surrounding the combustible storage object (a). Therefore, the inflow of oxygen into the combustible storage object (a) is substantially eliminated.

[0090] In addition, as shown in (c) of Fig. 7, the pressure regulating valve (121) maintains the internal space of the container (100) from which the inert gas (202) is discharged at a positive pressure by regulating the internal pressure, so that the inflow of external air is extremely blocked even by the pressure difference. That is, even if the flammable stored material (a) is overheated, the sealed structure of the container (100) itself, the space shielding by the ignition inhibitor (200) granules and the inert gas (202), and the pressure regulating operation of the pressure regulating valve (121) are combined to make it virtually impossible to supply oxygen into the container (100). Therefore, ignition of the flammable stored material (a) can be completely suppressed.

[0091] This ignition suppression effect can be confirmed more specifically in Fig. 8. Fig. 8 illustrates a state where the ignition suppression agent (200) has dropped and completely covered the flammable storage material (a). When the flammable storage material (a) (e.g., a spent battery, etc.) overheats (which may be due to various factors such as an internal short circuit, external impact, an external heat source, an electrical abnormality, corrosion, etc.), in general cases, it is difficult to prevent thermal runaway, which may lead to a large fire. However, the present invention seals the flammable storage material (i.e., a spent battery) inside the container (100) and completely wraps it with the ignition suppression agent (200) to block the inflow of oxygen, so that ignition is suppressed extremely effectively. In particular, the inert gas (202) (e.g., nitrogen) discharged from the pore (201) penetrates between the mixture of the first particle structure (210) and the second particle structure (220) to completely block even the minute oxygen inflow space, and the inert gas (202) discharged to the internal space of the container forms a substantial inert gas (202) layer to generate positive pressure and block the inflow of oxygen, so that the inflow of oxygen toward the combustible storage material (a) is substantially eliminated. Therefore, even if the combustible storage material (a) is overheated to near the ignition point, ignition of the combustible storage material (a) can be suppressed.

[0092] In addition, the first particle structure (210) can prevent the surrounding temperature from rising due to the insulating effect of the independent pore structure [see 201 of Fig. 3(b)]. That is, even if the temperature of the combustible storage material (a) increases, the first particle structure (210) blocks heat transfer, thereby preventing the heat from spreading to the surroundings of the combustible storage material (e.g., waste batteries) or the container (100). Therefore, even in a space containing combustible materials, fire can be suppressed, preventing a major accident from occurring.

[0093] In this way, the present invention can prevent ignition (or explosion accompanied therewith) of flammable stored materials (a) stored in a container (100) and suppress fire by simultaneously blocking the inflow of oxygen into the flammable stored materials and preventing heat diffusion to the surroundings. Therefore, the risk of fire accidents can be greatly reduced with the ignition-suppressing storage device (1). This can prevent casualties and also prevent large-scale accidents in factories that store or handle a large number of hazardous materials with a high risk of ignition, such as waste batteries. In addition, since it can suppress fire even in the presence of other flammable materials by blocking heat diffusion, it can be of great help in fire suppression.

[0094] Hereinafter, a fire-prevention storage device according to another embodiment of the present invention will be described in detail with reference to FIGS. 9 to 11. Since this other embodiment of the present invention exemplifies a modified form of the container, the remaining portions are described as described above. Therefore, for all matters not specifically mentioned in the following description, reference will be made to the above description.

[0095] FIG. 9 is a perspective view of a fire suppression storage device according to another embodiment of the present invention, FIG. 10 is a cross-sectional view showing the internal structure of the fire suppression storage device of FIG. 9, and FIG. 11 is an operation diagram showing the fire suppression agent granule discharge operation of the fire suppression storage device of FIG. 9.

[0096] Referring to Fig. 9, a fire suppression storage device (1-1) according to another embodiment of the present invention includes a housing (100) in a form that facilitates the insertion and removal of a fire suppression agent (200). The housing (100) may be formed in the form of a container in which a main body (110) is recessed downward to form a receiving space and has an internal receiving space. The fire suppression storage device (1-1) may include an outlet (110a) at the lower portion of the main body (110) through which the fire suppression agent (200) is discharged.

[0097] The cover (120) can be transformed into a plate-shaped structure that covers the upper portion of the container-shaped main body (110). The pressure regulating valve (121) described above can be placed on the cover. The cover (120) and the main body (110) can be sealed by being joined to each other as described above, and an appropriate gap sealing structure, such as a gasket, can also be applied to the joint between the cover (120) and the main body (110).

[0098] The discharge port (110a) can be placed at an appropriate point, such as the front of the main body (110). The discharge port (110a) has a structure that opens the space, but can be shielded by combining a blocking plate (111). The blocking plate (111) can be formed as a detachable and / or openable structure, and can be sealed using an appropriate pressurized fixing structure (not shown - for example, a pressurized toggle switch or toggle clamp that can seal by applying pressure to the blocking plate) that can pressurize and seal the blocking plate (111).

[0099] When a detachable structure is applied, the blocking plate (111) and the sieve plate (112) having a mesh of an appropriate size formed therein can be used interchangeably. In particular, when storing flammable materials, the blocking plate (111) can be combined to seal the discharge port (110a), and when discharging and exchanging the fire suppressant (200), the sieve plate (112) can be placed at the discharge port (110a) to filter and discharge only particles of a specific size (e.g., first particle structure with a small diameter) among the fire suppressant (200).

[0100] In addition, an operating plate (113) that is movable by being supported by an elastic body (114) (spring, etc.) can also be applied to the bottom of the main body (110). The operating plate (113) can be formed in a structure in which one end facing the discharge port (110a) is connected to the main body (110) by a hinge (see 113a in FIG. 10) and the other end is supported by the elastic body (114) so ​​as to rotate upward by elasticity. Accordingly, when a heavy object (i.e., a flammable storage object such as a used battery) is stored in the main body (110), it is pressed down and descends, and when the heavy object is discharged, it rises by elasticity and can drop the fire suppressant (200) granules toward the discharge port (110a) (see FIG. 11).

[0101] This structure can further increase the usability of the fire suppression storage device (1) because it is a structure that allows the fire suppression agent (200) granules composed of porous particle structures (210, 220) to be more easily incorporated and discharged within the body (100). In a case such as the present embodiment, the fire suppression agent (200) can be accommodated in the form of granules in the accommodation space within the main body (110) without a fixing means.

[0102] By this configuration, the ignition suppression storage device (1-1) can operate as follows. First, when a flammable storage material (a) is loaded into the container (100) as shown in FIG. 10, the operating plate (113) is maintained in a state lowered toward the floor by the load of the flammable storage material (a) (e.g., used batteries, etc.) [see (b) of FIG. 10]. Therefore, the internal storage space is expanded. Since the discharge port (110a) is sealed with a blocking plate (111), the entire container (100) is maintained in the aforementioned sealed state. When the flammable storage material (a) is overheated in this sealed state, the shielding action of the ignition suppressant (200) described above, the discharge action of the inert gas (see 202 of FIG. 4), and the pressure control action of the pressure control valve (121) are carried out, so that the oxygen supply is cut off and ignition of the flammable storage material (a) is suppressed. For related details, refer to the description of the above-mentioned embodiment.

[0103] Meanwhile, as shown in FIG. 11, after taking out the combustible storage material from the container (100) or before loading the combustible storage material, the fire suppressant (200) can be discharged from the container (100) for purposes such as filling with an inert gas. At this time, as shown, the fire suppressant (200) can be easily discharged and recovered through the discharge port (110a) at the bottom of the main body (110). For example, as shown in FIG. 11 (a), when the blocking plate (111) is separated and the discharge port (110a) is opened, the operating plate (113) from which the load (the load of the combustible storage material) has been removed can automatically rise by the elastic body (114) and push the fire suppressant (200) granules to the discharge port (110a). Therefore, the fire suppressant (200) can be quickly discharged.

[0104] Also, as in (b) of FIG. 11, by combining the sieve plate (112) with the discharge port (110a), the first particle structure (210) and the second particle structure (220) constituting the fire suppressant (200) can be separately recovered. That is, by adjusting the mesh size of the sieve plate (112), only particle structures of a specific size passing through the mesh (e.g., the first particle structure) can be discharged, and the rest can be kept in the container and handled separately. In such a case, since only the particle structure that functions as a storage for the inert gas (e.g., the second particle structure) can be separately injected with the inert gas, the task of maintaining the inert gas concentration of the fire suppressant can be more conveniently performed. It is also possible to transform the fire suppressant storage device (1-1) into another form in this manner.

[0105] The fire-retardant storage device of the present invention described above comprises a fire-retardant incorporated within the housing, and the fire-retardant can be manufactured using glass powder or waste glass powder. In particular, recycling waste glass powder is effective in terms of resource recycling and environmental conservation through the utilization of waste resources (such as tempered glass from solar panels). Therefore, a method for manufacturing the fire-retardant will be briefly described below in this context.

[0106] [Method for manufacturing fire suppressants]

[0107] Hereinafter, waste glass powder may be replaced with glass powder. The method for manufacturing a fire retardant consists of the following steps. The method for manufacturing a fire retardant may include (1) a step of mixing waste glass powder and a blowing agent to form a mixed powder (S100), (2) a step of combining the mixed powder to form a non-porous particle body in the form of particles (S200), (3) a step of heating the non-porous particle body to form a porous particle structure (see 210 and 220 in FIG. 3) having a plurality of pores formed on the inside and the surface (S300), and (4) a step of adsorbing an inert gas (see 202 in FIG. 3) into the pores (see 201 in FIG. 3) of the porous particle structure (S400). Through these steps, waste glass can be recycled to manufacture a fire retardant (see 200 in FIG. 1) and built into a container to form a fire retardant storage device. Each step is explained in more detail below:

[0108] The raw material for flame retardants is glass or waste glass powder. Waste glass powder can be sourced from a variety of sources that handle waste glass. Waste glass powder is not limited to a single type; waste glass from one or more different processes can be mixed and used. Additives or mixtures can also be added to enhance physical and chemical properties, if necessary.

[0109] Waste glass powder should preferably be finely ground to a specific particle size using a grinder or similar device. A finer powder allows for the formation of finer pores during foaming, so the particle size of waste glass powder can be considered a variable controlling pore size. Taking this into account, waste glass powder can be processed to an appropriate size for use.

[0110] Mixing waste glass powder with a foaming agent (e.g., calcium carbonate, sodium carbonate, etc.) forms a mixed powder. The foaming agent need not be limited to the examples (calcium carbonate, sodium carbonate), and various ingredients capable of foaming molten glass at high temperatures may be optionally and additionally used. Additives (such as substances that increase mechanical strength or enhance bonding properties) or mixtures may also be added, if necessary. In this manner, a mixed powder is formed by mixing waste glass powder and a foaming agent (S100).

[0111] Thereafter, the mixed powder is combined to form a non-porous particle in the form of particles (S200). The non-porous particle may be a molded product in an intermediate stage before foaming, which is formed into a particle form by combining the mixed powder without foaming. For example, the mixed powder may be mixed with a solvent or binder to form a slurry, and then cooled in water or air to solidify into a droplet form. In this way, the mixed powder can be combined before foaming and formed into a particle form through appropriate molding. In this way, the non-porous particle is formed first.

[0112] Thereafter, the non-porous particle body is heated to form a porous particle structure (210, 220) having a large number of pores formed on the inside and surface (S300). The non-porous particle body can be foamed by controlling the foaming temperature, heating rate, and foaming time under high temperature conditions, and can be solidified into a foamed state by cooling it by controlling the cooling temperature, cooling rate, and cooling time after foaming. Since the pores (201) can be controlled on both sides of the preceding step (S100) of mixing the above-described foaming agent and glass powder and the subsequent foaming process, it is preferable to perform these processes under more appropriate conditions. In the above-described mixing process, the material properties can be controlled by controlling the particle size of the waste glass powder, the amount of the foaming agent, the mixing time and rate of the foaming agent, and the additives, and in the foaming process, the pores can be changed by controlling the foaming temperature, heating rate, foaming time, and cooling temperature, cooling rate, and cooling time.

[0113] For example, the foaming temperature can be between 700 and 900 degrees Celsius, and the foaming temperature, heating rate, and foaming time can be controlled by considering the amount of foaming agent mixed in the preceding process and the size of the pores finally formed. When a sufficient amount of foaming agent and foaming time are combined at a foaming temperature, the connected pore structure of the second particle structure (see 220 in FIG. 3) described above can be realized, and when a relatively short foaming time and a small amount of foaming agent are combined, the independent pore structure of the first particle structure (see 210 in FIG. 3) described above can be realized. Therefore, in the step of forming a porous particle structure (S300), separate molding of the first particle structure and the second particle structure is possible. That is, the step of forming a porous particle structure may include a step of forming a first particle structure in which the internal pore structures are independently formed to form an independent pore structure with the pores separated from each other, and a step of forming a second particle structure in which the internal pore structures are interconnected to form a connected pore structure in which the pores are connected to each other. In each step, the heating temperature, heating rate, and heating time may be different from each other.

[0114] In addition, since the amount of the foaming agent and the foaming time can affect the size of the particle structure after foaming in addition to the pore structure, it is also possible to form the first particle structure and the second particle structure with different sizes in the porous particle structure forming step [i.e., foaming process]. That is, the first particle structure can be formed to have a relatively small diameter together with the independent pore structure by reducing the foaming amount and time, and the second particle structure can be formed to have a relatively large diameter together with the connected pore structure by increasing the foaming amount and time. However, since the size of each particle structure can also be adjusted in the non-porous particle body (droplet, etc.) forming process (S200), it is desirable to organically adjust the two steps (S200, S300) to control the sizes of the first particle structure and the second particle structure.

[0115] In this porous particle structure forming step, the pores can be adjusted to a size that is favorable for the physisorption of the inert gas. That is, the pore size of the porous particle structure is preferably 1.5 to 10 times the size of the inert gas molecule adsorbed inside the pores, and more preferably, the inert gas is nitrogen and the pore size can be 0.5 to 4 nm. However, since the pore size can change correspondingly when the inert gas is changed, it is not necessary to be limited to the example. After adjusting the pores (201) in the step of forming the porous particle structure in this way, the inert gas can be adsorbed more effectively in the subsequent process.

[0116] Thereafter, an inert gas (202) is adsorbed into the pores of the porous particle structure (S400). Since the inert gas can be fixed inside the pores by physisorption as described above, a process of contacting the porous particle structure and the inert gas in the chamber under conditions favorable for adsorption can be used. For example, the step of adsorbing the inert gas may include a step of positioning the porous particle structure inside a vacuum chamber and maintaining the inside of the vacuum chamber in a vacuum state, and a step of injecting an inert gas into the pores of the porous particle structure by injecting the inert gas into the pores of the porous particle structure.

[0117] A vacuum chamber (not shown) capable of forming a vacuum when injecting an inert gas may be a decompression chamber capable of reducing pressure to a vacuum state and may be equipped with a decompression mechanism (such as a vacuum pump). In addition, a controlled pipeline structure (e.g., a transport pipe including a shut-off valve) capable of introducing an inert gas in a reduced pressure state may be included. In the vacuum-reduced chamber, a porous particle structure may be placed with its surface exposed using a tray, etc., and an inert gas may be sucked into the chamber at a negative pressure to increase the density of the inert gas in the chamber. When the inert gas is in a high concentration state and comes into contact with the porous particle structure (210, 220) for a sufficient period of time, the inert gas molecules may penetrate into the pores of the porous particle structure and be fixed by physical adsorption. In particular, by allowing a large number of inert gas molecules to penetrate into the pores of the second particle structure (220) having a connected pore structure and being adsorbed and fixed, a larger amount of inert gas may be included in the fire suppressant. However, since the first particle structure can also be additionally placed in a vacuum chamber or together with the second particle structure to perform an adsorption process, it is necessary to understand that it is possible to include an inert gas in some of the pores (e.g., those formed on the surface) of the first particle structure (210).

[0118] However, since most of the inert gases are accommodated in the second particle structure having a connected pore structure in which a number of pores are interconnected, the desired effect can be obtained by separating only the second particle structure and charging it separately in a process such as recharging to maintain the inert gas concentration of the fire suppressant (200).

[0119] In this way, when an inert gas is adsorbed inside the pores, most of the pores of the porous particle structure are filled with the inert gas, so the oxygen concentration inside the pores of the porous particle structure is reduced. That is, in the step of adsorbing the inert gas (S400), by injecting the inert gas into the pores, the oxygen concentration inside the pores can be maintained below 10%, thereby suppressing the oxygen supply and preventing ignition. That is, in the inert gas adsorption process (S400), it is possible to manufacture a fire retardant that extremely reduces the oxygen concentration inside the pores, which is lower than the oxygen concentration in the atmosphere (approximately 20%) and falls short of the conditions for maintaining combustion (e.g., an oxygen concentration of 15-16%).

[0120] In this way, a fire suppressant that is effective in suppressing fire while containing an inert gas and having a low oxygen concentration can be manufactured. As described above, a fire suppressant storage device can be constructed by sealing the fire suppressant within a container (100).

[0121] Although the embodiments of the present invention have been described with reference to the attached drawings, those skilled in the art will appreciate that the present invention can be implemented in other specific forms without altering the technical concept or essential features thereof. Therefore, the embodiments described above should be understood to be illustrative in all respects and not restrictive.

[0122] [Explanation of symbols]

[0123] 1, 1-1: Fire suppression storage device

[0124] 100: hull 110: main body

[0125] 110a: outlet 111: blocking plate

[0126] 112: Control panel 113: Operating panel

[0127] 113a: Hinge 114: Elastic body

[0128] 120: Cover 121: Pressure regulating valve

[0129] 122: Fixing means 122a: Space dividing part

[0130] 200: Fire suppressant 210: First particle structure

[0131] 220: Second particle structure 201: Pores

[0132] 202: Inert gas a: Flammable storage

[0133] H: Heat

[0134] The present invention suppresses ignition of combustible materials or flammable substances, such as waste batteries, in situations where they may ignite due to internal or external factors, and thus is excellent in preventing casualties and disasters caused by fire. In addition, by controlling ignition conditions and suppressing ignition, it prevents fires of flammable materials with a risk of rapid ignition, and thus can be an effective alternative even in situations where separate fire extinguishing equipment is difficult to install. Furthermore, when used in conjunction with fire extinguishing equipment, a synergistic fire prevention effect can be achieved that is effective in both suppressing and extinguishing fires. Therefore, it is possible to store and transport flammable materials or flammable substances with a risk of rapid ignition, such as waste batteries, while suppressing and preventing ignition. Therefore, the present invention has high applicability in battery-related fields and other industries that handle various flammable materials.

Claims

1. A container in which the main body and the cover are connected to each other to form a sealed structure and a storage space is formed inside to accommodate flammable storage materials; and A fire-retardant storage device that is filled inside the above-mentioned receiving space, and has a porous particle structure formed through a foaming process after a mixed powder containing glass powder and a foaming agent is formed in the form of particles, and has a plurality of pores formed inside and on the surface, and includes a fire-retardant containing an inert gas inside the pores.

2. In paragraph 1, A fire-retardant storage device in which the above-mentioned inert gas is fixed by physical adsorption inside the pores, and the pores are formed to have a size 1.5 to 10 times the molecular size of the above-mentioned inert gas.

3. In paragraph 2, A fire-retardant storage device in which the above inert gas is nitrogen and the pore size is 0.5 to 4 nm.

4. In paragraph 1, The above-mentioned container is a fire-resistant storage device in which the main body and the cover are sealed to maintain airtightness in the storage space.

5. In paragraph 4, The above-mentioned container further includes a pressure regulating valve for regulating the pressure inside the storage space.

6. In paragraph 5, The above pressure regulating valve is a fire suppression storage device that maintains the inside of the storage space at positive pressure.

7. In paragraph 1, The above fire suppression agent is a fire suppression storage device that surrounds the flammable storage material and is attached to the inner wall of the container.

8. In paragraph 7, The above body is formed with the main body at the bottom and the cover covers the main body to form a sealed structure. The above cover is structured to be indented upwards to form the storage space inside and cover the flammable storage material. The above fire suppression device is a fire suppression storage device attached to the inner wall of the cover.

9. In paragraph 7, The above fire suppression device is a fire suppression storage device fixed to the inner wall of the container by a fixing means that is released above a critical temperature.

10. In paragraph 1, A fire suppression storage device in which the main body is recessed downward to form the receiving space and further includes an outlet through which the fire suppression agent is discharged at the lower portion.

11. A container in which the main body and the cover are connected to each other to form a sealed structure and a storage space is formed inside to accommodate flammable storage materials; and It is filled inside the above-mentioned receiving space, and a mixed powder containing glass powder and a foaming agent is formed into a particle form and then a porous particle structure is formed through a foaming process, and a number of pores are formed inside and on the surface, and a fire retardant containing an inert gas is included inside the pores. The above fire suppression agent is a fire suppression storage device in which the size of the pores is formed to be 1.5 to 10 times the size of the molecules of the inert gas, and the oxygen concentration inside the pores is maintained within 10%.

12. In paragraph 11, The above fire suppressant comprises a first particle structure in which the internal pore structure is independently formed to form an independent pore structure with the pores separated from each other, A fire-retardant storage device including a second particle structure in which internal pore structures are interconnected to form a connected pore structure in which the pores are connected to each other.

13. In paragraph 12, A fire-retardant storage device in which the above inert gas is contained in only one of the first particle structure and the second particle structure.

14. In paragraph 13, A fire-retardant storage device in which the above-mentioned fire-retardant surrounds the flammable storage material and is attached to the inner wall of the container, and the first particle structure and the second particle structure are attached in layers and overlap each other.

15. In paragraph 14, The above body is formed with the main body at the bottom and the cover covers the main body to form a sealed structure. The above cover is structured to be indented upwards to form the storage space inside and cover the flammable storage material. The above fire suppression device is a fire suppression storage device attached to the inner wall of the cover.

Images