Storage and transportation box made of heat-insulating fire-resistant composite material and forming process thereof

Abstract

The invention belongs to the technical field of storage and transportation boxes, and particularly discloses a heat-insulation fireproof composite material storage and transportation box and a forming process thereof. According to the storage and transportation box for the heat-insulating and fire-resistant composite material, based on the fire-resistant performance of the material of the fire-resistant layer, it is guaranteed that the box body is kept not disintegrated for 30-60 min in the environment of 800-1000 DEG C, and the risk that the box body is burnt through is avoided; meanwhile, on one hand, a heat insulation layer is formed by means of burning resistance of high-temperature-resistant glue and low heat conductivity of a cotton felt product, external high heat is prevented from being conducted to the interior of the box body, on the other hand, an inner sealing structure and an outer sealing structure are arranged on a lower box flange, and fire-resistant expansion sealant on the outer side expands when meeting high temperature to seal die seams of the upper box body and the lower box body. High temperature and flame are prevented from extending into the box, and the inner side flame-retardant sealing strip further reduces heat transmission into the box; the multiple measures ensure that the temperature rise in the box does not exceed 100 DEG C in the temperature environment. And in addition, the composite board also has the characteristic of better strength, so that the integration of the functions of fire resistance, heat insulation and force bearing is realized.

Description

TECHNICAL FIELD

[0001] The present application belongs to the technical field of storage and transport boxes, and particularly relates to a heat-insulating fire-resistant composite material storage and transport box and a forming process thereof. BACKGROUND

[0002] National special products (such as military equipment, precision instruments, hazardous chemicals, etc.) often need to be placed in storage and transport boxes during storage and transportation. The conventional resin-based composite material storage and transport boxes are currently formed by low-pressure contact process, which is generally formed at room temperature. Some have certain flame-retardant function, but when an accident occurs and catches fire, especially when it encounters extreme fire (800℃-1000℃), the box body does not have fire-resistant function, and even after the fire, the air temperature in the box body rises sharply, endangering the safety of the built-in products, thereby causing the failure of the conventional resin-based composite material storage and transport boxes.

[0003] There are currently related researches on fire-resistant composite material storage and transport boxes, such as Chinese Patent Application CN 118373063A, which discloses a fire-resistant composite material packaging box and a preparation method thereof, which adopts high-temperature-resistant inorganic glue and carbon fiber composite material, has excellent fire-resistant performance, and the packaging box does not decompose and retains certain mechanical strength within 3600s at 800℃-1000℃ environment, effectively ensuring the safety of the built-in products in the event of an accident and fire, gaining time for rescue and effectively protecting the safety of the built-in products.

[0004] However, the above-mentioned fire-resistant composite material packaging box only improves the fire-resistant performance from the perspective of material modification, and the box body structure includes a directly and simply buckled upper box and lower box, and the upper box and lower box also adopt the same forming process. This structural design does not consider the sealing and heat-insulating measures in the fire environment, which will cause the temperature in the box to rise quickly during the fire, which is not conducive to protecting the safety of the products.

[0005] Therefore, it is necessary to further improve the fire-resistant composite material storage and transport box to truly achieve fire resistance and heat insulation in the fire environment, so as to effectively protect the products stored therein. SUMMARY

[0006] In order to solve the problem that the fire-resistant composite material packaging box in the prior art cannot realize sealing and heat insulation, the temperature in the box rises fast when on fire, and the safety of the built-in product cannot be protected, the fire-resistant composite material packaging box is further improved, a novel heat-insulating fire-resistant composite material storage and transportation box is provided, and a forming process thereof is provided. The heat-insulating fire-resistant composite material storage and transportation box is improved in the structure of the upper box body and the lower box body, and is supplemented with specific functional materials, so that the heat-insulating fire-resistant composite material storage and transportation box can be kept from disintegrating for 30 min to 60 min in an environment of 800 DEG C to 1000 DEG C, the temperature rise in the box is not more than 100 DEG C, the safety of the built-in product can be effectively ensured in the case of fire caused by an accident, time for rescue is gained, and the safety of the built-in product is effectively protected.

[0007] The application specifically adopts the following technical scheme:

[0008] In a first aspect of the application, a heat-insulating fire-resistant composite material storage and transportation box is provided, which comprises an upper box body and a lower box body that are buckled by means of buckles.

[0009] The opening end of the upper box body has an upper box flange, and the connecting surface of the upper box flange is planar.

[0010] The opening end of the lower box body has a lower box flange, and the connecting surface of the lower box flange has a sealing rubber groove located on the outer side and a sealing strip groove located on the inner side in the horizontal direction, the sealing rubber groove is filled with fire-resistant expansion sealing rubber, and the sealing strip groove is provided with a fire-retardant sealing strip.

[0011] Optionally, the top surface of the fire-resistant expansion sealing rubber in the sealing rubber groove is 1 mm to 2 mm lower than the connecting surface of the lower box flange.

[0012] Optionally, the fire-resistant expansion sealing rubber comprises the following components in uniform mixture and heat curing: 100 parts of water glass, 10 to 30 parts of alkali, 5 to 20 parts of carbon fiber chopped fiber yarn, 15 to 35 parts of expanded graphite, 10 to 30 parts of magnesium oxide and 30 to 50 parts of water.

[0013] Optionally, the materials of the upper box flange and the lower box flange are both glass fiber reinforced plastic.

[0014] Optionally, the cross-sectional shape of the sealing rubber groove is trapezoidal, and preferably the bottom angle of the trapezoidal shape is 40 DEG to 60 DEG.

[0015] Optionally, the fire-retardant sealing strip is made of silicone rubber.

[0016] Preferably, the cross-sectional shape of the fire-retardant sealing strip has arc-shaped corrugations on the bottom surface and the top surface. Such a design has the advantages of excellent sealing performance, wider adaptability (especially suitable for sealing surfaces made of glass fiber reinforced plastic), wear resistance and aging resistance.

[0017] Specifically, both the upper box body and the lower box body include at least a refractory layer and a heat-insulating layer stacked and arranged from the outside to the inside in the direction of the wall thickness.

[0018] Optionally, the material of the refractory layer is made of a composite material of carbon fiber and inorganic glue.

[0019] The inorganic glue includes the following components in parts by mass: 100 parts of water glass, 10 to 30 parts of alkali, 50 to 140 parts of inorganic filler and 10 to 50 parts of water.

[0020] Furthermore, the inorganic filler is metakaolin.

[0021] Preferably, the particle size of the metakaolin is 800-6000 mesh.

[0022] Optionally, the thickness of the refractory layer is 6 mm to 10 mm.

[0023] Optionally, the material of the heat insulation layer is made of a cotton felt product coated with high-temperature resistant glue.

[0024] Furthermore, the high temperature resistant adhesive includes the following components in parts by mass which are uniformly mixed: 100 parts of water glass, 10 to 30 parts of alkali, 5 to 20 parts of carbon fiber chopped fiber yarns and 30 to 50 parts of water.

[0025] Furthermore, the cotton felt product has a thermal conductivity of less than 0.6 W / (m·K).

[0026] Preferably, the cotton felt product can be selected from rock wool (thermal conductivity is 0.03W / (m·K) to 0.05W / (m·K)), glass wool (thermal conductivity is 0.03W / (m·K) to 0.04W / (m·K)), aerogel felt (thermal conductivity is 0.01W / (m·K) to 0.02W / (m·K)), etc.

[0027] Optionally, the coating amount of high temperature resistant glue on the surface of the cotton felt product is 500g / m 2 ~1000g / m 2 .

[0028] Optionally, the thickness of the thermal insulation layer is 80 mm to 180 mm.

[0029] Furthermore, the upper box body and the lower box body also include an outer structural layer located outside the refractory layer, and / or an inner structural layer located inside the thermal insulation layer.

[0030] Optionally, the material of the outer structural layer is protective paint or product gel coat.

[0031] Optionally, the material of the inner structural layer is a resin-based fiberglass inner skin.

[0032] Optionally, the inner structure layer has a thickness of 3-6 mm.

[0033] Optionally, the open end of the lower box body has a metal framework below the lower box flange.

[0034] Optionally, the bottom of the lower box body is provided with a front support seat and a rear support seat at intervals to support and fix the built-in object.

[0035] Generally, the height of the front support seat is higher than that of the rear support seat.

[0036] Optionally, the buckles are arranged at intervals of 200-300 mm on each side of the box body.

[0037] Generally, the top of the upper box body is further provided with spaced upper lifting rings for opening and closing the upper box body, and the side of the lower box body is further provided with spaced lower lifting rings for lifting the lower box body or the whole box.

[0038] In a second aspect, the application provides a forming process of the heat-insulating and fire-resistant composite material storage and transport box as described above, which comprises the following steps:

[0039] S1, forming of the upper box body and the main part of the lower box body;

[0040] The forming processes of the main parts of the upper box body and the lower box body are consistent, and both adopt the following forming process:

[0041] S11, forming of the fire-resistant burning layer;

[0042] Laying carbon fibers on the inner surface of the mold;

[0043] Vacuum bag pressing inorganic glue into the carbon fibers;

[0044] Curing the carbon fibers with vacuum bag pressed inorganic glue to obtain the fire-resistant burning layer.

[0045] Among them, the forming process of the fire-resistant burning layer refers to the forming process of the fire-resistant burning composite material packaging box in CN 118373063A, and the only difference is that the inorganic glue only adopts the vacuum bag pressing method therein.

[0046] S12, forming of the heat-insulating and heat-preserving layer;

[0047] S121, processing of the heat-insulating and heat-preserving material:

[0048] Coating high-temperature resistant glue on the surface of the cotton felt product and curing to obtain the heat-insulating and heat-preserving material;

[0049] S122, laying and curing the heat insulation material on the inner side of the fire-resistant layer to form a heat insulation layer.

[0050] Optionally, in step S121, the curing system is heating at 40-60 DEG C for 2-4 hours.

[0051] Optionally, the specific steps of step S122 include:

[0052] The release cloth and the air-permeable felt are laid on the inner side of the fire-resistant layer, and then the heat insulation material is laid and the vacuum film is wrapped;

[0053] The vacuum pressure is extracted to -0.03-0.06 MPa, and the temperature is heated to 80-120 DEG C for 2-4 hours, the vacuum is closed, and the heating is continued for 6-12 hours;

[0054] The release cloth, the air-permeable felt and the vacuum film are removed to form the heat insulation layer on the inner side of the fire-resistant layer.

[0055] Optionally, the above step S1 further includes the steps of:

[0056] S13, forming the inner structure layer;

[0057] The resin-based glass steel inner skin is made on the inner side of the heat insulation layer to form the inner structure layer.

[0058] Optionally, the resin-based glass steel inner skin is made by using a low-pressure contact forming process or a vacuum bag pressing process at room temperature.

[0059] Preferably, after the upper box body and the lower box body are formed, the whole is cured for at least 12 hours.

[0060] S2, reprocessing the lower box body;

[0061] The fire-resistant expansion sealant is poured into the sealing groove at the lower box flange of the open end of the lower box body, and the fire-retardant sealing strip is arranged in the sealing strip groove.

[0062] S3, the upper box body and the lower box body are assembled by the buckle to form the heat-insulating fire-resistant composite material storage and transportation box.

[0063] Compared with the prior art, the beneficial effects of the present application are:

[0064] 1) The heat-insulating fire-resistant composite material storage and transportation box provided by the present application ensures that the box body remains intact for 30-60 minutes at 800-1000 DEG C, and is free from the risk of burning through the box body, based on the fire-resistant performance of the material of the fire-resistant layer.

[0065] 2) The above-mentioned heat-insulating fire-resistant composite storage and transportation box provided by the present application improves the heat-insulating performance from the perspective of the box structure. On the one hand, a new material with a new ratio is laid in the interior of the fire-resistant layer to form a heat-insulating layer. With the high-temperature-resistant property of the high-temperature-resistant glue and the low-thermal-conductivity property of the cotton felt product, the heat conduction from the outside to the interior of the box is prevented. On the other hand, two sealing structures are arranged at the flange position of the lower box, one of which is a fire-resistant expansion sealing glue on the outside. When the temperature rises to more than 150℃ due to fire, the fire-resistant expansion sealing glue expands by itself to seal the joint between the upper box and the lower box and prevent the high temperature and the flame from spreading into the box. In combination with the secondary protection of the fire-retardant sealing strip on the inside, the heat transfer into the box is further reduced. The above-mentioned multiple measures ensure that the temperature in the box does not rise by more than 100℃ under the above-mentioned temperature environment.

[0066] 3) The above-mentioned heat-insulating fire-resistant composite storage and transportation box provided by the present application has a tensile strength of the fire-resistant layer of more than 100MPa and a tensile strength of the interior structural layer of more than 200MPa. In combination with the load-bearing effect of the metal framework in the lower box, the strength meets the use requirements, realizes the integration of the functions of “fire resistance-heat insulation-load bearing”, and breaks through the bottleneck of the performance of a single material. At the same time, the comprehensive density of the heat-insulating fire-resistant composite storage and transportation box is not more than 1.5g / cm 3 , which is more than 60% lower than the weight of a general all-metal fire-resistant box.

[0067] 4) The forming process of the above-mentioned heat-insulating fire-resistant composite storage and transportation box provided by the present application involves conventional selection of raw materials and processes, does not require special matching equipment, and is simple, which is beneficial to production and promotion. BRIEF DESCRIPTION OF DRAWINGS

[0068] Figure 1 is a sectional view of a heat-insulating fire-resistant composite storage and transportation box according to an embodiment of the present application;

[0069] Figure 2 is a structural schematic view of an upper box in a heat-insulating fire-resistant composite storage and transportation box according to an embodiment of the present application;

[0070] Figure 3 is a structural schematic view of a lower box in a heat-insulating fire-resistant composite storage and transportation box according to an embodiment of the present application;

[0071] Figure 4 is Figure 3 a structural schematic view of a region A in

[0072] Figure 5 is a flowchart of a forming process of a heat-insulating fire-resistant composite storage and transportation box according to an embodiment of the present application;

[0073] In the accompanying drawings, 1 represents the upper box body, 11 represents the upper hanging ring; 2 represents the lower box body, 21 represents the lower box flange, 22 represents the sealant groove, 23 represents the sealing strip groove, 24 represents the fire-resistant expansion sealant, 25 represents the flame-retardant sealing strip, 26 represents the metal frame, 271 represents the front support seat, 272 represents the rear support seat, 28 represents the lower hanging ring; 3 represents the buckle; 1a represents the refractory burning layer, 2a represents the thermal insulation layer, 3a represents the inner structural layer, and 4a represents the outer structural layer. DETAILED DESCRIPTION

[0074] For a better understanding of the present invention, the following examples are further illustrative of the present invention and are only used to explain the content of the present invention, but not to limit the present invention. All similar embodiments listed based on the present invention should fall within the scope of protection.

[0075] like Figure 1 As shown, this embodiment provides a heat-insulating and fire-resistant composite material storage and transportation box, which includes an upper box body 1 and a lower box body 2 fastened together by a buckle 3.

[0076] Combine Figure 2 and Figure 3 The upper box body 1 and the lower box body 2 both include a refractory layer 1a and a heat-insulating layer 2a stacked from outside to inside in the direction of wall thickness.

[0077] Preferably, an inner structural layer 3a is provided on the inner side of the heat-insulating layer 2a, and an outer structural layer 4a is provided on the outer side of the refractory layer 1a.

[0078] Specifically, the refractory layer 1a is made of a composite material of carbon fiber and inorganic glue.

[0079] The inorganic glue includes the following components in parts by mass: 100 parts of water glass, 10 to 30 parts of alkali, 50 to 140 parts of inorganic filler and 10 to 50 parts of water.

[0080] In some embodiments, the inorganic filler is specifically metakaolin.

[0081] In some embodiments, the particle size of the metakaolin is specifically 800-6000 mesh.

[0082] In some embodiments, the thickness of the refractory layer is 6 mm to 10 mm.

[0083] Specifically, the material of the heat insulation layer 2a is made of a cotton felt product coated with high-temperature resistant glue.

[0084] The high temperature resistant adhesive comprises the following components uniformly mixed in parts by weight: 100 parts of water glass, 10 to 30 parts of alkali, 5 to 20 parts of carbon fiber chopped fiber yarn and 30 to 50 parts of water.

[0085] Furthermore, the thermal conductivity of the cotton felt product is controlled to be less than 0.6 W / (m·K).

[0086] In some embodiments, the cotton felt product is specifically selected from rock wool (thermal conductivity is 0.03W / (m·K) to 0.05W / (m·K)), glass wool (thermal conductivity is 0.03W / (m·K) to 0.04W / (m·K)), aerogel felt (thermal conductivity is 0.01W / (m·K) to 0.02W / (m·K)), etc.

[0087] In some embodiments, the coating amount of high temperature resistant glue on the surface of the cotton felt product is 500g / m 2 ~1000g / m 2 .

[0088] In some embodiments, the thickness of the thermal insulation layer 2a is 80 mm to 180 mm.

[0089] Specifically, the material of the inner structural layer 3a is a resin-based fiberglass inner skin.

[0090] In some embodiments, the thickness of the inner structural layer 3a is 3 mm to 6 mm.

[0091] In some embodiments, the material of the outer structural layer 4a is protective paint or product gel coat.

[0092] The open ends of the upper box body 1 and the lower box body 2 each have a flange structure - an upper box flange (not shown in the figure) and a lower box flange, so as to achieve the buckling of the upper box body 1 and the lower box body 2.

[0093] The connection surface of the upper box flange (ie, the fastening surface with the lower box flange) is planar.

[0094] Specific reference Figure 4 The connecting surface of the lower box flange 21 (i.e., the fitting surface with the upper box flange) has a sealing glue groove 22 located on the outside and a sealing strip groove 23 located on the inside in the horizontal direction (i.e., the orientation when the lower box body is placed horizontally as shown in the figure).

[0095] Obviously, both the sealing glue groove 22 and the sealing strip groove 23 are annular and surround the open end of the lower box body 2 .

[0096] The sealant groove 22 is filled with fire-resistant expansion sealant 24 , and the sealing strip groove 23 is filled with flame-retardant sealing strip 25 .

[0097] In some embodiments, the top surface of the fire-resistant expansion sealant 24 injected into the sealant groove 22 is 1 mm to 2 mm lower than the connection surface of the lower box flange 21, so as to reserve sufficient expansion space when the fire-resistant expansion sealant 24 expands at high temperature.

[0098] In some embodiments, the fireproof and expandable sealant 24 comprises the following components in uniform mixing and heat curing: 100 parts of water glass, 10-30 parts of alkali, 5-20 parts of chopped carbon fiber yarn, 15-35 parts of expanded graphite, 10-30 parts of magnesium oxide, and 30-50 parts of water.

[0099] In some embodiments, the cross-sectional shape of the sealant groove 22 is trapezoidal, wherein the upper base of the trapezoid is located at the connecting surface of the lower box flange 21, so that the fireproof and expandable sealant 24 can be more stably accommodated inside the sealant groove 22.

[0100] Preferably, the base angle of the trapezoid is 40°-60°.

[0101] In some embodiments, the fire-retardant sealing strip 25 is made of silicon rubber with fire-retardant property.

[0102] In some embodiments, the cross-sectional shape of the fire-retardant sealing strip 25 is overall rectangular, but the bottom surface and the top surface each have an arc-shaped wave.

[0103] The "bottom surface" refers to the surface of the fire-retardant sealing strip 25 in contact with the sealing strip groove 23, and the "top surface" refers to the surface of the fire-retardant sealing strip 25 in contact with the upper box body 1.

[0104] Thus, the heat-insulating and fireproof composite storage and transportation box has the following advantages. First, the fireproof and burn-resistant layer 1 is made of a material with fireproof and burn-resistant properties, which ensures that the box body remains intact for 30-60 minutes in an environment of 800-1000°C, overcoming the problem that conventional resin-based composite storage and transportation boxes are easily burned through. Second, the heat-insulating and heat-preserving layer 2 is made of specific materials, which, with the help of the burn-resistant properties of the high-temperature-resistant glue and the low thermal conductivity properties of the cotton felt product, prevents the high heat outside the box body from being transmitted to the inside of the box body, and plays an excellent heat-insulating role in the case of sustained high heat outside the box body. Third, the inner and outer sealing structures are arranged at the flange position of the lower box body 2, and the fireproof and expandable sealant 24 on the outside expands at a temperature higher than 150°C, thereby sealing the joint between the upper and lower box bodies and preventing the high temperature and flame from spreading into the box. In combination with the secondary protection effect of the fire-retardant sealing strip 25 on the inside, the transmission of heat into the box is further reduced. The double heat-insulating measures of the heat-insulating and heat-preserving layer 2 and the lower box flange 21 together ensure that the temperature inside the box does not exceed 100°C in the above temperature environment.

[0105] In addition, the material of the fireproof and burn-resistant layer 1 has a relatively high tensile strength, which, in combination with the higher tensile strength of the inner structural layer 3a, enables the box body to meet the basic strength requirement.

[0106] In some embodiments, the open end of the lower box body 2 further has a metal framework 26 located below the lower box flange 21.

[0107] Obviously, the metal skeleton 26 also presents a ring shape surrounding the open end of the lower box body 2.

[0108] As shown in the drawings, in some embodiments, the inner bottom surface of the lower box body 2 has front support seats 271 and rear support seats 272 arranged at intervals to place and support the contents. Figure 3

[0109] As shown in the drawings, in some embodiments, the top surface of the upper box body 1 also has upper lifting rings 11 arranged at intervals to open and close the upper box body 1. The side surface of the lower box body 2 also has lower lifting rings 28 arranged at intervals to hoist the lower box body 2 or the whole box. Figures 1-2

[0110] Referring to the drawings, the above-mentioned heat-insulating and fire-resistant composite material storage and transportation box provided by the embodiment is processed by using the following forming process: Figure 5

[0111] Firstly, the mold is cleaned and coated with a release agent.

[0112] Secondly, the fire-resistant burning layer 1a is formed.

[0113] Specifically, carbon fibers are first laid on the inner surface of the mold, and then the vacuum bag process is used to form, that is, the inorganic glue is pressed into the carbon fibers by a vacuum bag, and the carbon fibers at this time are cured to obtain the fire-resistant burning layer 1a.

[0114] The forming process of the fire-resistant burning layer 1a is consistent with the forming process of the fire-resistant composite material packaging box in CN 118373063A.

[0115] Thirdly, the heat-insulating and heat-preserving layer 2a is formed.

[0116] Specifically, the heat-insulating and heat-preserving material is first processed.

[0117] The high-temperature resistant glue is coated on the surface of the cotton felt product and cured to obtain the heat-insulating and heat-preserving material.

[0118] Specifically, the high-temperature resistant glue includes the following components mixed uniformly: water glass 100 parts, alkali 10-30 parts, carbon fiber chopped fiber yarn 5-20 parts, and water 30-50 parts.

[0119] The cotton felt product is a cotton felt product with a thermal conductivity less than 0.6 W / (m·K), such as rock wool (thermal conductivity 0.03 W / (m·K)-0.05 W / (m·K)), glass wool (thermal conductivity 0.03 W / (m·K)-0.04 W / (m·K)), aerogel felt (thermal conductivity 0.01 W / (m·K)-0.02 W / (m·K)), etc.

[0120] ​​​In some embodiments, the high-temperature-resistant glue is coated on the surface of the cotton felt product in an amount of 500g / m 2 ~1000g / m 2 .

[0121] In some embodiments, the curing condition is heating at 40℃-60℃ for 2h-4h.

[0122] Secondly, the heat-insulating material is laid on the inner side of the fire-resistant layer 1a and cured to form the heat-insulating layer 2a.

[0123] In some embodiments, the forming step of the heat-insulating layer 2a is as follows:

[0124] Firstly, the release cloth and the air-permeable felt auxiliary material are laid on the inner side of the fire-resistant layer 1a, and then the heat-insulating material is laid and covered with the vacuum film.

[0125] Then, the vacuum pressure is extracted to -0.03MPa--0.06MPa, and heated to 80℃-120℃ for 2h-4h, the vacuum is closed, and the heating is continued for 6h-12h.

[0126] Finally, the release cloth, the air-permeable felt, and the vacuum film are removed, and the heat-insulating layer 2a is formed on the inner side of the fire-resistant layer 1a.

[0127] Fourthly, the forming of the inner structure layer 3a.

[0128] The resin-based glass steel inner skin is formed on the inner side of the heat-insulating layer 2a by using the low-pressure contact forming process or the vacuum bag pressing process at room temperature, thereby forming the inner structure layer 3a.

[0129] In some embodiments, the thickness of the inner structure layer 3a is 3mm-6mm.

[0130] The main body part of the upper box body 1 and the lower box body 2 are formed by using the above forming process, and thus the forming of the upper box body 1 is completed.

[0131] Fifthly, the reprocessing of the lower box body 2.

[0132] Specifically, the fire-resistant expansion sealant 24 is poured into the sealant groove 22 at the lower box flange 21 of the open end of the lower box body 2, and the fire-retardant sealing strip 25 is arranged in the sealing strip groove 23, thereby completing the forming of the lower box body 2.

[0133] Preferably, the upper box body 1 and the lower box body 2 are re-cured for more than 12h and demolded.

[0134] Sixthly, the upper box body 1 and the lower box body 2 are assembled by the hasp 3 to form a heat-insulating fire-resistant composite material storage and transportation box.

[0135] Generally, an upper lifting ring 11 is installed on the top of the upper case 1, and a lower lifting ring 28 is installed on the side of the lower case 2.

[0136] In the description of the present specification, the description referring to the term "some embodiments" means that the specific features, structures, materials or characteristics described in connection with the embodiments or examples are included in at least one embodiment or example of the present application. In the present specification, the illustrative description of the above-mentioned term does not necessarily refer to the same embodiment or example. Also, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner. Furthermore, the different embodiments or examples described in the present specification and the features of the different embodiments or examples can be combined and combined by those skilled in the art without contradiction.

[0137] The above-adopted embodiments are only for the purpose of illustrating and explaining the present application and do not constitute a special limitation of the present application. Any form of modification made without departing from the basic concept of the present application, and the obvious modifications derived therefrom, are within the scope of protection of the present application.

Claims

1. A heat-insulating and fire-resistant composite material storage and transportation box, characterized in that: It includes an upper box body and a lower box body fastened together by buckles; The open end of the upper box body has an upper box flange, and the connection surface of the upper box flange is flat; the open end of the lower box body has a lower box flange, and the connection surface of the lower box flange has a sealant groove located on the outside and a sealing strip groove located on the inside in the horizontal direction, the sealant groove is injected with fire-resistant expansion sealant, and the sealing strip groove is filled with a flame-retardant sealing strip; Both the upper box body and the lower box body include at least a refractory layer and a thermal insulation layer stacked from the outside to the inside in the direction of wall thickness; the material of the thermal insulation layer is made of a cotton felt product coated with high-temperature resistant glue, and the high-temperature resistant glue includes the following components mixed evenly in parts by mass: 100 parts of water glass, 10 to 30 parts of alkali, 5 to 20 parts of carbon fiber chopped fiber yarn and 30 to 50 parts of water, and the cotton felt product has a thermal conductivity of less than 0.6 W / (m·K).

2. The heat-insulating and fire-resistant composite material storage and transportation box according to claim 1, characterized in that: The coating amount of the high temperature resistant glue on the surface of the cotton felt product is 500g / m 2 ~1000g / m 2 .

3. The heat-insulating and fire-resistant composite material storage and transportation box according to claim 1, characterized in that: The thickness of the heat insulation layer is 80 mm to 180 mm.

4. The heat-insulating and fire-resistant composite material storage and transportation box according to claim 1, characterized in that: The fire-resistant expansion sealant comprises the following components in parts by mass which are uniformly mixed and heat-cured: 100 parts of water glass, 10-30 parts of alkali, 5-20 parts of carbon fiber chopped fiber yarn, 15-35 parts of expanded graphite, 10-30 parts of magnesium oxide and 30-50 parts of water.

5. The heat-insulating and fire-resistant composite material storage and transportation box according to any one of claims 1 to 4, characterized in that: The upper box body and the lower box body both include an inner structural layer located on the inner surface of the heat insulation layer, and the material of the inner structural layer is a resin-based fiberglass inner skin.

6. The heat-insulating and fire-resistant composite material storage and transportation box according to claim 5, characterized in that: The thickness of the inner structural layer is 3 mm to 6 mm.

7. The heat-insulating and fire-resistant composite material storage and transportation box according to claim 1, characterized in that: The open end of the lower box body has a metal frame located below the lower box flange.

8. The molding process of the heat-insulating and fire-resistant composite material storage and transportation box according to any one of claims 1 to 7, characterized in that: Including steps: S1. Forming the main parts of the upper box and the lower box; S11, forming of refractory layer; Laying carbon fiber on the inner surface of the mold; vacuum bagging an inorganic adhesive into the carbon fiber; Curing the carbon fiber that has been vacuum bag pressed with inorganic glue to obtain the refractory layer; S12, forming of thermal insulation layer; S121. Processing of thermal insulation materials: Applying high temperature resistant glue on the surface of the cotton felt product and curing it to obtain the thermal insulation material; S122, laying the thermal insulation material on the inner side of the refractory layer and curing it to form the thermal insulation layer; S2, reprocessing of the lower box; At the lower box flange at the open end of the lower box body, fire-resistant expansion sealant is poured into the sealant groove, and a flame-retardant sealing strip is placed in the sealing strip groove to form the lower box body; S3. Assemble the upper box body and the lower box body by buckling to obtain the heat-insulating and fire-resistant composite material storage and transportation box.

9. The molding process according to claim 8, characterized in that: Step S1 further includes: S13, forming of the inner structural layer; A resin-based fiberglass inner skin is made on the inner side of the heat insulation layer to form the inner structural layer.

10. The molding process according to claim 8 or 9, characterized in that: Step S122 specifically includes: Firstly lay the release cloth and breathable felt auxiliary material on the inner side of the refractory layer, then lay the thermal insulation material and then wrap it with vacuum film; Evacuate to a vacuum pressure of -0.03 MPa to -0.06 MPa, heat to 80°C to 120°C and maintain for 2 h to 4 h, turn off the vacuum, and continue heating for 6 h to 12 h; The release cloth, breathable felt and vacuum film are removed to form the heat insulation layer inside the refractory layer.

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