JP4597080B2 - Flexible container for carbide transportation - Google Patents

Description

The present invention relates to a flexible container for transporting carbides used for storing and transporting carbides of exothermic particles produced after processing wastes and the like.

Conventionally, when processing waste such as garbage, in order to extend the life of the final disposal site (landfill), the amount of waste has been reduced by incineration or gasification and melting methods. On the other hand, recently, in response to a request for reduction of global warming gas (CO ₂ ), waste such as waste is not incinerated, but is carbonized in a carbonization furnace and recovered as particulate carbides for effective use. A possible method has been proposed. This carbide can be used, for example, as an alternative material such as coal or coke as a fuel, or as a heat insulating material on the surface of a molten metal in a metal electric furnace, and thus is further effective for resource saving.

  Carbide recovered from the carbonization furnace is packed in a storage container for transportation, but this carbide contains many reactive groups such as free radicals and functional groups, and generates heat due to low-temperature oxidation reaction, etc. have. Moreover, since the inside of a storage container is hard to radiate heat and it is easy to store heat, when the calorific value of the carbide | carbonized_material is more than the amount of heat dissipation, heat | fever stays in the inside of a storage container and temperature rises. Due to this temperature rise, an exothermic reaction such as low-temperature oxidation is promoted and further heat is generated. If the temperature exceeds a certain temperature (for example, 80 ° C.), thermal runaway occurs, and in the worst case, there is a possibility of catching fire and causing a fire.

  In order to solve the above problem, a carbide generating facility as shown in Patent Document 1 has been proposed. This carbide generation facility is a facility that supplies at least one of an oxygen scavenger and a deoxygenated aqueous solution to the carbide and performs bagging in a state where the oxygen concentration in the bag is reduced by deaeration. However, in order to prevent heat generation of the granular material by this method, there is a problem that a large-scale facility is required and an oxygen scavenger and an oxygen scavenger solution are required, resulting in high running costs.

JP 2004-256122 A

The present invention solves the above-mentioned problems and provides a flexible container for transporting carbides that can be safely stored and stored so that the carbides of exothermic powder particles will not ignite and cause a fire. It was completed for the purpose of doing.

The present invention has been made to solve the above-mentioned problems. The present invention has been made to store, for transportation, powdered carbides of particles produced after treating waste and containing reactive groups and having exothermic properties by low-temperature oxidation reaction. A flexible container for carrying a bag-like carbide,
A cooling tubular portion having one end or both ends opened in a part of the peripheral surface of the container body is provided so as to cross the inside of the container body .

It should be noted that a cylindrical member may be inserted into the cooling tubular portion . Further , the inside of the cooling tubular portion or the tubular member may be filled with or circulated with a cooling medium.

  Alternatively, a rod-like member may be provided in the cooling tubular portion.

The flexible container for conveying carbide according to the present invention is provided with a cooling tubular portion so as to cross the inside , and the cooling tubular portion is intended to cool the granular material, so that it does not depend on large-scale equipment. In addition, the running cost is low, it is possible to prevent heat storage of the carbide particles, prevent ignition and fire, and safely store and store the carbide particles.

Also, a cylindrical member is inserted into the cooling tubular portion, a cooling medium is filled into the cooling tubular portion or the cylindrical member, a rod-shaped member is inserted into the cooling tubular portion, When the cooling medium in the interior of the member or to flow, further cooling can be improved.

Hereinafter, preferred embodiments of the present invention will be described with reference to the drawings.
FIG. 1 shows a front view of the flexible container for conveying carbide of the present invention, and FIG. 2 shows a side view of the flexible container for conveying carbide of the present invention. 1 to 6, reference numeral 1 denotes a bag-like container main body called a flexible container having a substantially rectangular parallelepiped shape with a side of about 1 m, and an upper portion is an opening. The carbide container for conveying carbide of the present invention is used for storing and transporting powdered carbide of exothermic powder in the container body 1.

In the present invention, a cooling tubular portion 2 that traverses the inside of the container body 1 is provided. The cooling tubular portion 2 is provided on the surface facing the front surface of the container body 1 so as to cross the inside of the container body 1 substantially horizontally with respect to the bottom surface of the container body 1. The shape of the tubular portion 2 of the cooling, for example a diameter of Ru cylindrical der of 30Mm～160mm. The cooling tubular portion 2 may be made of the same material as that of the container body 1, but may be made of metal, resin, ceramic, ceramics, or the like. Here, the cooling tubular portion 2 may be flexible or rigid. Two or more cooling tubular portions 2 may be provided in the container body 1.

One or both ends of the tubular section 2 for cooling you are open to a portion of the peripheral surface of the container body 1.

As shown in FIG. 4, the tubular member 3 having a rigid tubular portion 2 for cooling is inserted and Closing the container body 1. The cross-sectional shape of the cylindrical member 3 is a shape corresponding to the cross-sectional shape of the cooling tubular portion 2. When the cylindrical member 3 is attached to the container body 1, the cylindrical member 3 and the cooling tubular portion 2 are It has a shape that adheres closely. The material of the cylindrical member 3 is, for example, metal, resin, ceramic, ceramic, etc., and preferably has high heat conductivity. 4 is a hollow part of the cylindrical member 3. As shown in FIG. 4, the end of the cylindrical member 3 may be protruded from the container main body 1, but may not be protruded from the container main body 1.

The heat of the heat storage part of the carbide of the powder is transmitted from the cylindrical member 3 to the hollow part 4. When the air in the hollow portion 4 is exchanged, the heat of the heat storage part inside the container body 1 is released to the outside of the container body 1, and it becomes possible to prevent the heat storage of the carbides of the granular material. When the end of the cylindrical member 3 is protruded from the container body 1, the heat of the heat storage part of the carbide of the granular material is transferred from the center in the longitudinal direction of the cylindrical member 3 to both ends, and the cylindrical member 3. The heat is radiated from the portion protruding from the container body 1. In addition, in order to improve the cooling function of the cylindrical member 3, a fin for heat dissipation or the like may be attached to the cylindrical member 3.

An exothermic reaction such as low-temperature oxidation of the carbide of the granular material may proceed due to contact with oxygen in the air during transportation or storage of the flexible container for conveying the carbide, and the granular carbide may store heat. Therefore, the cylindrical member 3 is charged with a coolant such as ice cubes, dry ice, etc., and the heat storage portion of the powdered carbide is cooled by the coolant from the portion in contact with the cooling tubular portion 2, and the carbide. the exothermic reaction is suppressed such low temperature oxidation of Rukoto to prevent Atsushi Nobori of the carbide powder particles it is also possible.

Further, when the material of the cooling tubular portion 2 is a rigid material, the cooling tubular portion 2 is not crushed by the weight of the granular material even if the carbide of the granular material is stored in the container body 1. Since the cross-sectional shape of the cooling tubular portion 2 can be maintained, the heat of the heat storage portion of the powdered carbide is transferred to the cooling tubular portion 2, and the air in the cooling tubular portion 2 is replaced. The heat of the carbide of the granular material is released to the outside of the container body 1, and it becomes possible to prevent heat storage of the carbide of the granular material.

In addition, the cooling tubular portion 2 can be filled with a cooling medium and sealed so that the cooling medium does not leak out , and heat storage of the carbide of the granular material can be prevented. For example, water is used as the cooling medium. In this case, if the specific heat of the carbide is 0.3 kcal / kg ° C., the specific heat of water is 1 kcal / kg ° C. Therefore, the specific heat of water is more than three times that of the specific heat of carbide, and the water that is the cooling medium is , by absorbing heat carbide granules occurs, to prevent the heat accumulation of carbide particulate material. The cooling medium is not limited to water and may be ethylene glycol, propylene glycol, or the like.

In addition, the cylindrical member 3 can be filled with the cooling medium, and the cylindrical member 3 can be hermetically sealed so that the cooling medium does not leak out, thereby preventing heat accumulation of carbides in the granular material. The heat of the heat storage part of the carbide of the granular material is transferred from the cylindrical member 3 to the cooling medium, and this cooling medium absorbs the heat, thereby preventing the heat storage of the carbide of the granular material.

  Further, as shown in FIG. 5, when the cooling medium is circulated through the hollow portion 4 of the cylindrical member 3, the cooling function of the cylindrical member 3 is further improved. In the thing of FIG. 5, the inlet side jack 5 and the outlet side jack 6 are connected to the hollow part 4, and the inlet side jack 5 and the outlet side jack 6 are connected with the pump 8 and the cooling medium container 9 by the piping 7, respectively. It has become.

In this case, when the pump 8 is driven, the cooling medium is supplied from the cooling medium container 9 to the inlet-side jack 5, and the cooling medium flows through the hollow portion 4 while taking the heat of the cylindrical member 3. The cooling medium after flowing through the hollow portion 4 circulates from the outlet side jack 6 to the cooling medium container 9. As a result, the heat storage part of the carbide of the granular material is cooled from the portion in contact with the cylindrical member 3, and does not store heat, and the temperature rise is suppressed. Note that the cooling medium may be directly discharged from the outlet side jack 6 to the outside of the container body 1 without circulating the cooling medium from the outlet side jack 6 to the cooling medium container 9. The cooling medium is not limited to a liquid such as water and may be a gas such as air. When gas is used as a cooling medium, the cooling medium container 9 may be omitted.

Moreover, as shown in FIG. 6, it is good also as letting the column-shaped rod-shaped member 10 penetrate the tubular part 2 for cooling, and attaching it to the container main body 1, and preventing the heat storage of the carbide | carbonized_material of a granular material. The cross-section of the rod-shaped member 10 has a shape corresponding to the cooling tubular portion 2. When the rod-shaped member 10 is attached to the container body 1, the rod-shaped member 10 and the cooling tubular portion 2 are in close contact with each other. belongs to. Depending on the shape of the corresponding cooling tubular portion 2, the shape of the rod-shaped member 10 is, for example, a cylindrical shape having a diameter of 30 mm to 160 mm. The material of the rod-shaped member 10 is, for example, metal, resin, ceramic, ceramic, etc., and preferably has a large heat capacity and a high heat conductivity. Further, it is more preferable that the surface of the rod-shaped member 10 is covered with a heat transfer layer 11 having a high heat transfer property. Examples of the material of the heat transfer layer 11 include metal and silicone.

In the case shown in FIG. 6, the heat of the heat storage part of the carbide of the granular material moves to the rod-shaped member 10, and this rod-shaped member 10 absorbs the heat, so it is possible to prevent the heat storage of the carbide of the granular material. It becomes. Further, the rod-shaped member 10 or the heat transfer layer 11 may have these end portions protruding from the container main body 1, and in this case, the heat inside the container main body 1 is generated by the rod-shaped member 10 or the heat transfer layer 11. Heat is transferred from the center in the longitudinal direction to both ends, and the rod-shaped member 10 or the heat transfer layer 11 is radiated to the outside of the container body 1 from the portion protruding from the container body 1, thereby improving the cooling function of the rod-shaped member. In addition, in order to improve the cooling function of the rod-shaped member 10, heat radiation fins or the like (not shown) may be attached to the rod-shaped member 10 or the heat transfer layer 11. When the rod-shaped member 10 or the heat transfer layer 11 is protruded from the container main body 1 or when the heat radiation fin is provided, the heat capacity of the rod-shaped member 10 may not be large.

As described above, according to the present invention, it is possible to reliably prevent heat accumulation of powdered carbides and prevent ignition / fire due to thermal runaway without using a large-scale apparatus.

Although the present invention has been described above in connection with the most practical and preferred embodiments at the present time, the present invention is not limited to the embodiments disclosed herein. However, it can be changed as appropriate without departing from the spirit or concept of the invention that can be read from the claims and the entire specification, and it is understood that a flexible container for transporting carbide with such changes is also included in the technical scope. It must be.

It is a front view which shows embodiment of this invention. It is a side view which shows embodiment of this invention. It is a front view which shows embodiment of this invention. It is a side view which shows embodiment of this invention. It is a schematic diagram which shows the use condition of the flexible container for carbide conveyance of this invention. It is a front view which shows embodiment of this invention.

DESCRIPTION OF SYMBOLS 1 Container main body 2 Tubular part 3 for cooling 3 Cylindrical member 4 Hollow part 5 Inlet side jack 6 Outlet side jack 7 Piping 8 Pump 9 Cooling medium container 10 Rod-like member 11 Heat transfer layer

Claims (5)

A bag-like flexible container for transporting powdered carbide that is generated after processing waste and contains a reactive group and has a heat generation property due to a low-temperature oxidation reaction, and is stored for transportation.
A flexible container for conveying carbide , characterized in that a cooling tubular portion having one end or both ends opened in a part of the peripheral surface of the container body is provided so as to cross the inside of the container body . The flexible container for conveying carbide according to claim 1, wherein a tubular member is inserted into the cooling tubular portion . The flexible container for conveying carbide according to claim 1 or 2, wherein a cooling medium is filled in the cooling tubular portion or the tubular member. A pump for feeding the cooling medium;
The cooling medium is supplied to the inside of the cylindrical member or the inside of the cylindrical member by the pump, and the cooling medium is configured to flow through the inside of the cooling tubular portion or the cylindrical member. A flexible container for conveying carbide according to 1 . The flexible container for conveying carbide according to claim 1, wherein a rod-like member is inserted into the cooling tubular portion .

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