JP4533773B2 - Insulated transport container for heated mixture - Google Patents

Description

  The present invention relates to a heat-retaining and transporting container for transporting a heated composite material such as a heated asphalt mixture in a heat-retaining state.

  When installing manholes under the road surface, burying gas pipes or water pipes, and repairing or inspecting existing buried objects under the road surface, once the asphalt concrete pavement surface is broken, the roadbed Need to be exposed and excavated.

  Then, after construction or the like, the roadbed after excavation is backfilled and the pavement surface is restored. The restoration composites used at this time include room temperature composites and heating composites. Room temperature composites can be transported, stored and constructed at room temperature, and thus have the advantage of being easy to use. However, they have the disadvantage of being inferior in stability and durability in the initial stage of construction. On the other hand, the heated composite material is an asphalt mixture heated after mixing coarse aggregate, fine aggregate, filler and asphalt at a predetermined ratio, and has an advantage of excellent stability and durability. is there. For this reason, in recent years, as a composite material for restoration, in particular, as a composite material used immediately for restoration in Japan, a heated composite material composed of a heated asphalt mixture or the like is generally used.

  The heated asphalt mixture has a coarse particle size for the base layer, and a fine particle size and a fine particle size for the surface layer. Generally, the optimum temperature at the time of rolling performed after laying is 110 to 140. It is said to be ℃. In addition, the heated asphalt mixture transported from the asphalt production or recycling factory cannot obtain the desired strength once the temperature is lowered, so the temperature is controlled so as not to cause a decrease in strength during transportation, etc. It is obliged to dispose of the heated asphalt mixture that has dropped below 110 ° C. What is disposed of in this way is collected in a production or recycling factory, subjected to a recycling process, and then reused.

  Therefore, conventionally, supply of heated composite material for restoration work of asphalt road surface at the excavation site is performed when the heated composite material is transported from the factory by a dump truck and arrives at the construction site in accordance with the completion time of road surface construction. Immediate enforcement was made.

  However, it takes a lot of labor and cost to transport the heated mixture from the factory to each scattered restoration work site. Despite the fact that the amount of heating compound used at the site has decreased, the temperature drop due to heat dissipation becomes significant if the amount of transported one time is reduced, so the waste left after transporting a large amount of heating compound In general, the material is collected again, and the conventional on-site supply of the heated composite material has had a problem that it must be an inefficient and energy-consuming supply system.

  In order to solve this problem, a large amount of the heated composite material transported from the asphalt generation or recycling factory is carried to multiple restoration sites, and a small amount of the heated composite material is transported to a large number of restoration sites by a single delivery from the factory. Although a supply system for transport is desired, for this purpose, development of a transport and heat retaining member that can transport the heated composite material in a state where the heat mixture is well retained is required.

  The following Patent Document 1 presents a sheet for transporting and keeping a heated composite material developed for this purpose. This sheet for transport and warming is used when transporting a heated composite material from a factory to a pavement site, and is a laminate in which a nonwoven fabric formed by entanglement of short fibers is laminated on at least one side of a support. Thus, the support or the short fiber is selected from at least one of polyimide fiber, polyphenylene sulfide fiber, aramid fiber, and glass fiber.

JP 2002-21628 A

  The transport and heat insulation sheet described above is used by wrapping the heated composite material placed on the sheet with the entire sheet, for example, laying this sheet on the entire truck bed, and placing a large amount of heated composite material on it, A usage form in which the sheet is wrapped and conveyed is adopted.

  According to this, there is a problem in workability at the time of loading on the truck bed in the factory or at the restoration site, and especially when the seat is released at the time of removal at the restoration site, a large amount of heat is generated. When traveling around the site, there arises a problem that the temperature of the heating compound decreases every time the site is crossed.

  In addition, even if the ventilation of the sheet itself is blocked, there are many occasions where the outside air entering from the folding opening of the sheet and the heating mixture of the inner package come into contact with each other, and the temperature of the heating mixture decreases due to contact with this outside air. There was a problem that it was difficult to ensure sufficient heat insulation during long-time transportation.

  It is also possible to wrap a small amount of heating material in a small area sheet, place it on the loading platform of a plurality of trucks, and carry out each sheet at the recovery site. There is a concern that the sheet may break due to rubbing or the like, and it is conceivable that the temperature of the heat-mixed material contained by radiating heat from the broken portion during storage at the recovery site is lowered. Moreover, it was still problematic in terms of workability to remove the heated composite from the truck bed while maintaining the state of being wrapped.

  The present invention aims to cope with such problems, and improves the workability when mounting on a truck bed in a factory or when carrying it out at a recovery site. It is possible to ensure sufficient heat retention even when transporting a small amount of heating compound used at one restoration site, especially when carrying around multiple restoration sites with one transport. In addition, it is a subject of the present invention that only a necessary amount of the heated composite material maintaining a good heat retaining state can be supplied to the site.

In order to achieve the above-mentioned object, the heat-insulating and transporting container for the heating composite according to the present invention is a heat-retaining and transporting container for storing and transporting the heating compound used for the restoration work of the pavement surface, and is a non-breathable rubber. A base fabric made of a heat-resistant synthetic fiber woven fabric having a reinforcing layer formed on at least the outer surface is arranged on the outside and inside, and the base material formed by sandwiching a heat insulating material between the base fabrics accommodates the heating composite material. The bag-shaped container is formed in a horizontally long shape having a rectangular plane portion, and the inside portion is sealed by folding the plane portion .

Further, in addition to the above-described features, the base fabric is made of a polyester woven fabric in which the rubber reinforcing layer is formed by rubber drawing reinforcement processing, and the heat insulating material is made of a polyester non-woven fabric.

  According to such a feature, it is possible to improve the workability at the time of generating the heating compound or mounting it on the truck bed at the recycling factory or carrying it out at the recovery site, and reduce the labor at the time of heating compound transportation. it can. In addition, sufficient heat retention can be ensured even when transporting a small amount of heated composite material used at one restoration site, especially when carrying around multiple restoration sites with a single transport. A necessary amount of the heated composite material that maintains the state can be supplied to the site.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings. FIG. 1 is a cross-sectional view showing a substrate that is employed in a heat-contained transport container for heated composites according to an embodiment of the present invention.

  A base material 10 shown in FIG. 1A is one form thereof, and a base fabric 11 made of a heat-resistant synthetic fiber fabric 11B having a non-breathable reinforcing layer 11A formed on the outer surface, and a non-breathable reinforcement. A structure in which a base fabric 13 made of a heat-resistant synthetic fiber fabric 13B having a layer 13A formed on the inner surface, and the base fabrics 11 and 13 are arranged on the outside and the inside, and the heat insulating material 12 is sandwiched between the base fabrics 11 and 13 have.

  Moreover, the base material 10 shown in the figure (b) is another form, Comprising: The base fabric 11 which consists of the heat-resistant synthetic fiber fabric 11B in which the non-breathable reinforcement layer 11A was formed in the outer surface, and a reinforcement layer A base fabric 13 made of heat-resistant synthetic fiber fabric 13B not formed on the inner surface, and the base fabrics 11, 13 are arranged on the outside and inside, and the heat insulating material 12 is sandwiched between the base fabrics 11, 13. is doing.

  Here, the reinforcing layers 11A and 13A may be formed of a synthetic resin layer made of rubber or the like as long as it is non-breathable and has a desired strength such as shearing. What is formed integrally with 11B and 13B, Preferably, what is formed by rubber-strengthening reinforcement processing etc. is employable. Moreover, the heat-resistant synthetic fiber fabrics 11B and 13B only need to have heat resistance, and polyester fabrics, acrylic fabrics, and the like can be employed.

  The heat insulating material 12 sandwiched between the base fabrics 11 and 13 is not particularly limited, and is a short fiber entangled non-woven fabric, particularly a polyester non-woven fabric or PPS non-woven fabric. can do. In addition to the nonwoven fabric of such short fibers, a heat-resistant foam, particularly a melamine foam, can be employed.

  According to the container formed of such a base material 10, it is possible to ensure the heat retaining property of the heat mixture to be accommodated by the action of the heat insulating material 12. In addition, the presence of the outer base material 11 can prevent the outside air or rain from entering the container by the non-breathable reinforcing layer 11A, and ensures effective strength against rubbing during handling. can do. Moreover, the heat resistant strength or the shape maintaining performance of the container can be obtained by the action of the heat resistant synthetic fiber fabric 11B. Furthermore, the presence of the inner base material 13 can protect the heat insulating material 12 from a high-temperature (about 180 ° C.) container (heated mixture), and can obtain the heat resistance strength or shape maintenance performance of the container. it can.

FIG. 2 is an external view showing a form example of the heat retaining and transporting container according to the embodiment of the present invention. In the example shown in FIG. 2, a sealable bag-like container 1 in which a heated composite material is accommodated is formed by the base material 10 described above. At this time, the outer surface is covered with the reinforcing layer 11A described above. In this example, a horizontally long bag container 1 having two rectangular flat surface portions 1A and 1B and a thick portion 1C is formed, and the internal portion is sealed by closing the opening portion 1D and folding the flat surface portions 1A and 1B. I try to get sex. Moreover, you may provide the sealing belt 1E which ties the circumference | surroundings after folding as needed.

  In the example shown in FIG. 3, the above-mentioned base material 10 forms a sealable box-like container 2 in which a heated composite material is accommodated. Here, as a matter of course, the outer surface is covered with the reinforcing layer 11A described above. In this example, six rectangular flat base materials are joined together in an airtight manner to form a rectangular parallelepiped box-like container 2, which forms a sealed opening 2 </ b> A, which is opened to open the interior. This is closed after putting in to secure the internal sealing. A hand belt 2B may be provided as necessary.

According to such a bag-like container 1 according to the embodiment of the present invention, since the completely contained heating mixture can be sealed, the outside air is stored in the heating mixture contained during transportation or storage at the restoration site. It can be avoided that the temperature drops due to rain or rain. Therefore, it can fully cope with transportation or storage for a relatively long time, and the heated asphalt mixture can be maintained at a temperature of 110 ° C. or higher.

  In addition, since each container can be loaded and unloaded when mounted on a truck bed at a factory or when it is unloaded at a restoration site, good handling properties can be obtained and labor for loading and unloading can be reduced. .

  In particular, when carrying around multiple restoration sites with a single transport from the factory, if the capacity of each container is set according to the amount of heating compound used at the restoration site, At the restoration site, the required number of containers can be distributed in a sealed state, and the heating compound can be efficiently distributed to multiple restoration sites while maintaining the heat insulation state of the heating compound in an appropriate state. .

  In addition, this container can make the weight of the container itself extremely light, and since it does not require extra space during transportation, even when the heating mixture is divided into many containers and transported A large amount of heating compound (containment) can be transported at a time. And after carrying out restoration work using the heating compound in the container at the restoration site, the used container will not be bulky if it is folded or crushed, so it can be easily recovered and recovered You can also reuse things.

  Table 1 shows specific examples of the substrate 10 described above.

By forming a bag-like container with the base material 10 according to each of the above-described embodiments, even when the stored heated asphalt mixture was transported and stored on site for about 10 hours, the temperature could be maintained at 110 ° C. or higher. .

FIG. 4 is an explanatory diagram showing an example of usage of the present invention. The bag-like container 1 according to the embodiment of the present invention preferably contains the heated asphalt mixture M put in a paper bag.

  At the time of transportation, for example, a plurality of heated asphalt mixtures M accommodated in the bag-like container 1 are accommodated in the large box-like container 2 and conveyed. At this time, the heated asphalt mixture M placed in a paper bag may be directly stored in the box-shaped container 2 or the heated asphalt mixture M stored in a paper bag is stored in the bag-shaped container 1 as a heat insulating sheet. You may make it convey by wrapping. At each restoration site, one or a plurality of bag-like containers 1 are distributed according to the amount of the heated asphalt mixture necessary for the restoration work. When storage for several hours is required at each restoration site, heat insulation measures such as further wrapping the bag-like container 1 with a heat insulation sheet or the like may be added as necessary.

  Here, the quantity of the heating asphalt mixture M accommodated in one bag-shaped container 1 is set according to the usage-amount in one restoration construction site. For example, when 70 kg of heated asphalt mixture M is required at one restoration work site, the capacity of one bag-like container 1 is set to 35 kg, and two bag-like containers 1 are distributed to one site. To.

  According to such an embodiment or example, since the amount of the heated composite material that is disposed of as a result of the temperature drop during transportation or storage at the restoration site can be reduced as much as possible, almost the necessary amount is transported. Therefore, an efficient and energy-saving heating compound supply form can be constructed.

It is sectional drawing which shows the base material employ | adopted as the heat retention conveyance container of the heating compound material which concerns on embodiment of this invention. It is the external view which showed the example of the form of the heat retention conveyance container which concerns on embodiment of this invention. Is an external view showing an embodiment of a coercive temperature transfer vessel. It is explanatory drawing which showed the usage pattern example of this invention.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Bag-shaped container 2 Box-shaped container 10 Base material 11,13 Base fabric 11A, 13A Reinforcement layer 11B, 13B Heat-resistant synthetic fiber fabric 12 Heat insulating material

Claims (2)

A heat-retaining and transporting container that contains and transports heated composite materials used for paving restoration work, and has a base fabric made of heat-resistant synthetic fiber fabric with a non-breathable rubber reinforcement layer formed on the outer surface. And a base material formed by sandwiching a heat insulating material between the base fabrics, and forming a sealable bag-like container in which the heated composite material is accommodated ,
The bag-like container is formed in a horizontally long shape having a rectangular flat surface portion, and a heat-insulating / conveying container for a heated mixture is obtained by folding the flat surface portion to obtain an internal sealing property . The said base fabric consists of a polyester fabric in which the said rubber reinforcement layer was formed by the rubber- strengthening reinforcement process, The said heat insulating material consists of a polyester nonwoven fabric, The heat retention conveyance of the heating compound material of Claim 1 characterized by the above-mentioned. container.

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