Multiple explosive storage and transportation protection methods and structures and explosive detonation and destruction methods

Abstract

The present invention provides a method and structure for protecting the storage and transportation of multiple explosives, as well as a method for explosive detonation and destruction. By improving existing explosion-proof containers, they are suitable for the storage and transportation of multiple explosives, resolving issues with existing explosion-proof containers during the disposal of multiple explosives. Explosion-proof baffles are installed within the explosion-proof container to divide the internal space of the container into multiple zones, each serving as an explosion-proof partition. A polyurethane foam generator is then installed within the explosion-proof container. When explosives are present, the polyurethane foam generator is activated to generate polyurethane foam, which fills the entire explosion-proof container.

Description

Technical Field

[0001] The present invention relates to a protection method and structure, in particular to a protection method and structure for storage and transportation of multiple explosives, belonging to the field of security and defense equipment. Background Art

[0002] Multiple explosions, involving large numbers of explosives, pose a significant threat. Explosives are typically transported using trailer-mounted explosion-proof balls. However, bomb disposal units are typically equipped with only one trailer-mounted explosion-proof ball, which can only transport one explosive at a time. When faced with multiple explosives, it's difficult to dispose of them in a short period of time.

[0003] Based on this, the main problems faced in the disposal of multi-point explosives are as follows:

[0004] (1) There are many explosives, usually more than three. Due to the mutual impact between the explosives, there are the following problems: ① There is no buffer zone between the explosives, so the detonation of one will cause the detonation of another; ② Multiple explosives cannot be fixed inside the sphere, and are prone to collision and detonation. Existing explosion-proof balls are generally not designed with this in mind.

[0005] (2) The energy of many explosives is relatively large. Traditional explosion-proof balls are made entirely of steel, and there is no energy-absorbing layer in the internal space. The explosion-proof equivalent is generally around 3kg, which can easily cause the structure to disintegrate under the impact of the explosion.

[0006] (3) Multiple explosives need to be destroyed promptly during transportation so that they can be quickly processed in the next stage. Summary of the Invention

[0007] In view of this, the present invention provides a method for the storage and transportation protection of multiple explosives, which can improve existing explosion-proof containers to make them suitable for the storage and transportation protection of multiple explosives, and solve the problems existing in existing explosion-proof containers in the process of multi-point explosive disposal.

[0008] A method for protecting the storage and transportation of multiple explosives, wherein explosion-proof partitions are provided in the explosion-proof container to divide the internal space of the explosion-proof container into multiple areas, each area serving as an explosion-proof partition;

[0009] Then, a polyurethane foam generator is arranged in the explosion-proof container; when the explosion-proof container is filled with explosives, the polyurethane foam generator is started to generate polyurethane foam to fill the entire explosion-proof container.

[0010] As a preferred embodiment of the present invention, an electric heating device is provided in each explosion-proof partition of the explosion-proof container, and the electric heating device can heat the explosive placed in the corresponding explosion-proof partition to a set temperature, thereby detonating the explosive.

[0011] As a preferred embodiment of the present invention, at least one polyurethane foam generator is provided in each explosion-proof partition.

[0012] In addition, the present invention provides a multi-explosive storage and transportation protection structure, comprising: an explosion-proof container, the explosion-proof container comprising: an explosion-proof container body having a top opening and an explosion-proof container top cover for opening or closing the top opening of the explosion-proof container body; and further comprising: an explosion-proof partition and a polyurethane foam generator;

[0013] A plurality of explosion-proof partitions are placed in the explosion-proof container body to divide the internal space of the explosion-proof container body into a plurality of explosion-proof partitions; and a polyurethane foam generator is arranged in the explosion-proof container body and / or on the explosion-proof container top cover.

[0014] As a preferred embodiment of the present invention, an electric heating wire mesh bag is provided in each explosion-proof partition as an electric heating device, and the electric heating wire mesh bag plays the role of supporting and heating the explosives placed in the explosion-proof partition.

[0015] As a preferred embodiment of the present invention, at least one polyurethane foam generator is provided in each explosion-proof partition inside the explosion-proof container body; the polyurethane foam generator is provided on the bottom surface of the explosion-proof container body and is used to generate polyurethane foam in the lower part of the explosion-proof container;

[0016] A polyurethane foam generator is arranged on the lower end surface of the explosion-proof container top cover to generate polyurethane foam in the upper part of the explosion-proof container.

[0017] As a preferred embodiment of the present invention: the polyurethane foam generator comprises: a housing, polyurethane material B, a sealing top cover, a control unit, a reaction unit and polyurethane material A;

[0018] The housing is a box-like structure with an open top and sealed at the bottom and all sides. The center of the housing contains polyurethane material A encapsulated in a film, and polyurethane material B is located on both sides of the polyurethane material A. The top opening of the housing is sealed at a location corresponding to polyurethane material A by a sealing top cover, and the location corresponding to polyurethane material B is encapsulated by a film.

[0019] The reaction unit is placed in the polyurethane material A. When the reaction unit is ignited and driven, the polyurethane material A is pushed to flow into the polyurethane materials B on both sides.

[0020] As a preferred embodiment of the present invention, a porous partition is provided between the film encapsulating the polyurethane material A and the polyurethane material B.

[0021] As a preferred embodiment of the present invention: the hole partition includes a partition body and a plurality of variable diameter holes distributed on the partition body; the variable diameter holes are truncated cone-shaped holes that are narrow at the top and wide at the bottom, wherein the small diameter side of the variable diameter hole 1 is opposite to the polyurethane B material, and the large diameter side is opposite to the polyurethane A material.

[0022] As a preferred embodiment of the present invention, the formula of the polyurethane material A and the polyurethane material B is:

[0023] Polyurethane A material is isocyanate;

[0024] Polyurethane B material contains:

[0025]

[0026]

[0027] The above parts are parts by weight.

[0028] As a preferred embodiment of the present invention, the weight ratio of the polyurethane material A to the polyurethane material B is 1:1 to 1:2.

[0029] In addition, the present invention also provides a method for detonating and destroying explosives using the above-mentioned multiple explosive storage and transportation protection structure:

[0030] Step 1: Place multiple explosives on the electric wire mesh bags in each explosion-proof partition, ensuring that there is no more than one explosive in each explosion-proof partition;

[0031] Step 2: After confirming that all suspected explosives are placed in the explosion-proof container body, close the explosion-proof container cover; start the polyurethane foam generator to generate polyurethane foam to fill the entire explosion-proof container;

[0032] Step 3: After it is determined that the explosives can be destroyed on site, the electric heating wire mesh bag is connected to the battery using a wire, and the electric heating wire mesh bag is in a ready state;

[0033] After everyone has evacuated to a safe area, the electric heating wire mesh bag is remotely controlled to heat the explosives to the set temperature, thereby detonating the explosives;

[0034] Step 4: Continue heating for the set time to ensure that all explosives are ignited and detonated.

[0035] Beneficial effects:

[0036] (1) The method for storing and transporting multiple explosives of the present invention utilizes explosion-proof partitions to divide the internal space of an explosion-proof container into multiple explosion-proof zones, thereby enabling storage of explosives in separate zones and preventing one explosion from triggering another explosion. Simultaneously, the explosion-proof partitions can provide a certain degree of energy absorption and fragment protection, thereby reducing damage to the entire protective container caused by the explosion. Furthermore, a polyurethane foam generator is provided within the explosion-proof container. When explosives are loaded, the polyurethane foam generator is activated to generate a large amount of foam that fills the entire explosion-proof container. Thus, the explosives can be fixed by the large amount of foam, preventing the explosives from shaking.

[0037] (2) The present invention further provides an electric heating device in each explosion-proof partition of the explosion-proof container, and the explosive can be detonated by the electric heating device to achieve on-site destruction of the explosive.

[0038] (3) In the multi-explosive storage and transportation protection structure provided by the present invention, at least one polyurethane foam generator is provided in each explosion-proof partition for generating polyurethane foam in the lower part of the explosion-proof container; a polyurethane foam generator is provided on the lower end surface of the top cover of the explosion-proof container for generating polyurethane foam in the upper part of the explosion-proof container; thereby ensuring that the foam can fill the entire explosion-proof container.

[0039] (4) In the multi-explosive storage and transportation protection structure provided by the present invention, in order to improve the foam generation efficiency, a hole partition is provided in the polyurethane foam generator. Each small stream of polyurethane material A flowing out of the small holes of the hole partition will be quickly surrounded by the polyurethane material B on both sides, thereby achieving a rapid mixing reaction of the polyurethane material A and the polyurethane material B, thereby improving the polyurethane foam generation efficiency.

[0040] (5) In the multi-explosive storage and transportation protection structure provided by the present invention, the small holes on the hole partition are variable diameter holes, wherein the small hole side of the variable diameter hole is opposite to the polyurethane B material, and the large hole side is opposite to the polyurethane A material; therefore, when the polyurethane A material flows outward, the variable hole diameter design can accelerate the liquid outflow speed of a single hole and improve the mixing efficiency of the polyurethane A material and the polyurethane B material.

[0041] (6) The rigid foam polyurethane prepared by the formula of polyurethane material A and polyurethane material B provided by the present invention has a fast foaming and curing speed, high strength after molding, and good dimensional stability. BRIEF DESCRIPTION OF THE DRAWINGS

[0042] Figure 1 This is a schematic diagram of a multi-explosive storage and transportation protection structure in conjunction with a spherical explosion-proof container in Example 2 of the present invention;

[0043] Figure 2 This is a schematic diagram of the structure of a polyurethane foam generator;

[0044] Figure 3 This is a cross-sectional view of a hole partition;

[0045] Including: 1.1-polyurethane foam generator A; 1.2-electric heating wire mesh bag; 1.3-explosive; 1.4-explosion-proof partition; 1.5-explosion-proof container sphere; 1.6-explosion-proof container top cover; 1.7-polyurethane foam generator B; 1.8-wire; 1.9-battery; 1.10-wireless controller;

[0046] 2.1-porous partition; 2.2-housing; 2.3-polyurethane material B; 2.4-sealing top cover; 2.5-control unit; 2.6-reaction unit; 2.7-polyurethane material A;

[0047] 3.1-Varied diameter hole; 3.2-Partition body. DETAILED DESCRIPTION

[0048] The present invention will be further described in detail below with reference to the accompanying drawings and embodiments.

[0049] Example 1:

[0050] This embodiment provides a method for protecting the storage and transportation of multiple explosives, which can improve existing explosion-proof containers to make them suitable for the storage and transportation protection of multiple explosives, thereby solving problems existing in existing explosion-proof containers during the disposal of multiple explosives.

[0051] The multiple explosives storage and transportation protection method includes:

[0052] First, explosion-proof baffles are added to explosion-proof containers (such as explosion-proof tank spheres). These baffles divide the internal space of the explosion-proof container into multiple zones, each serving as an explosion-proof partition. This allows for the storage of explosives in separate zones, even when explosives are separated by the baffles. Explosion-proof baffles are made of materials such as titanium alloy, copper, and high-strength steel. They effectively resist shock waves and fragments, reducing interactions between explosives within the explosion-proof container and preventing one explosion from triggering another. Furthermore, the baffles absorb energy and provide protection against fragments, minimizing damage to the overall protective container.

[0053] On the basis of the above scheme, a polyurethane foam generator is further provided in an explosion-proof container (such as an explosion-proof tank sphere); preferably, at least one polyurethane foam generator is provided in each explosion-proof partition; during normal storage, the polyurethane foam generator does not function. When explosives are loaded, the polyurethane foam generator can be activated by a remote control switch to generate a large amount of foam to fill the entire explosion-proof container (i.e., fill each explosion-proof partition). The large amount of foam can fix the explosives and prevent the explosives from shaking. As an example, polyurethane material A and polyurethane material B are provided in the polyurethane foam generator. During normal storage, polyurethane material A and polyurethane material B do not come into contact; when explosives are loaded, the remote control switch is used to quickly mix polyurethane material A and polyurethane material B to generate a large amount of foam to fill the entire explosion-proof container.

[0054] Furthermore, an electric heating device is installed within each explosion-proof partition of an explosion-proof container (such as an explosion-proof tank sphere). Under the control of an external controller, the electric heating device can heat the explosive contained therein to a set temperature (such as around 450°C, which is lower than the boiling point of conventional explosives), thereby detonating the explosive. Even if the explosive were to explode, the protective barrier (explosion-proof partitions and explosion-proof container) would not cause harm to the surrounding area. (Since the ignition of the explosive is instantaneous, the polyurethane foam is not yet completely burned and still has a certain shock wave absorption capacity.)

[0055] As an example, using a flammable polyurethane formula, after the explosive is detonated, the polyurethane foam can be burned and melted, making it convenient to clean the explosion-proof container after handling the explosive.

[0056] After handling the explosives, clean the explosion-proof container and finally wash it with acetone. If there is no obvious damage inside the explosion-proof container, it can still be used by repeatedly adding polyurethane foam generators.

[0057] Example 2:

[0058] On the basis of the above-mentioned embodiment 1, this embodiment provides a multi-explosive storage and transportation protection structure matched with a spherical explosion-proof container, that is, provides a spherical explosion-proof container with a multi-explosive storage and transportation protection structure.

[0059] like Figure 1 As shown, the multi-explosive storage and transportation protection structure for a spherical explosion-proof container of this embodiment includes: a polyurethane foam generator A 1.1, a polyurethane foam generator B 1.7, an explosion-proof partition 1.4, and an electric heating device; the electric heating device adopts an electric heating wire mesh bag 1.2; the spherical explosion-proof container includes: an explosion-proof container sphere 1.5 with a top opening and an explosion-proof container top cover 1.6 for opening or closing the top opening of the explosion-proof container sphere 1.5.

[0060] Multiple explosion-proof partitions 1.4 are placed within the explosion-proof container sphere 1.5, dividing the interior of the explosion-proof container sphere 1.5 into three to four explosion-proof zones. The bottoms of the explosion-proof partitions 1.4 are fixedly attached to the inner bottom surface of the explosion-proof container sphere 1.5, while the tops are lower than the top surface of the explosion-proof container sphere 1.5. Explosion-proof partitions 1.4 are primarily constructed of metal materials such as titanium alloy, copper, and high-strength steel. Their melting points must be significantly above 450°C (the set detonation temperature for explosives) to prevent melting during heating by the heating wire. With a thickness ranging from 6mm to 12mm, they are capable of protecting against most fragments and shock waves.

[0061] Each explosion-proof zone is equipped with an electric heating mesh bag 1.2, which serves as an electric heating device to support and heat explosives 1.3 placed within the zone (i.e., explosives 1.3 are placed on the heating mesh bag 1.2). The heating mesh bag 1.2 is woven from multiple heating wires, which may be nickel-chromium wire, tungsten wire, iron-chromium-aluminum wire, or a combination of these. The heating mesh bag 1.2 is connected to an external battery 1.9 via a wire 1.8, which supplies power to the heating mesh bag 1.2 to heat it.

[0062] At least one polyurethane foam generator A1.1 is provided in each explosion-proof partition inside the explosion-proof container sphere 1.5; the polyurethane foam generator A1.1 is adhered to the inner bottom surface of the explosion-proof container sphere 1.5 and is used to generate polyurethane foam at the lower part of the explosion-proof container sphere 1.5.

[0063] like Figure 2 As shown, the polyurethane foam generator A 1.1 includes: a porous partition 2.1, a shell 2.2, a polyurethane B material 2.3, a sealing top cover 2.4, a control unit 2.5, a reaction unit 2.6 and a polyurethane A material 2.7.

[0064] Shell 2.2 is a box-like structure with an open top and sealed bottom and sides. Shell 2.2 can be made of one of the following plastics: polylactic acid (PLA), polypropylene (PP), polyvinyl chloride (PVC), or acrylonitrile butadiene styrene (ABS), with a thickness of 3mm to 6mm. These plastics possess sufficient strength to maintain structural integrity and prevent deformation. They also rapidly soften and shatter under the high temperature and pressure of an explosion, preventing secondary damage to the explosion-proof container. In the center of shell 2.2 is polyurethane material A 2.7 encapsulated in a film. Polyurethane material B 2.3 flanks polyurethane material A within shell 2.2. At the top opening of shell 2.2, the corresponding position of polyurethane material A 2.7 is sealed by a sealing cap 2.4, while the corresponding position of polyurethane material B 2.3 is encapsulated by a film. Thus, from left to right within shell 2.2 are polyurethane material B 2.3 encapsulated in a polyether TPU film, polyurethane material A 2.7 encapsulated in a polyether TPU film, and polyurethane material B 2.3 encapsulated in a polyether TPU film. A sealed top cover 2.4 is positioned at the top opening of the housing 2.2, corresponding to the polyurethane material A 2.7. Made of 4mm-8mm thick polyetherimide (PEI) or high-strength nylon (PA), these plastics offer high mechanical strength, ensuring that the polyurethane material A 2.7 does not overflow from the top cover 2.4 and instead flows more into the polyurethane material B 2.3. (The top opening of the housing 2.2 corresponding to the polyurethane material B 2.3 is unsealed, allowing the generated polyurethane foam to be ejected.) A reaction unit 2.6, filled with black powder, is placed within the polyurethane material A 2.7. The control unit 2.5 within the reaction unit 2.6 cooperates with a wireless controller 1.10 located outside the explosion-proof container sphere 1.5 to ignite the reaction unit 2.6, causing the black powder in the reaction unit 2.6 to deflagrate. This explosion produces large amounts of nitrogen and carbon dioxide, which propel the polyurethane material A 2.7 into the polyurethane material B 2.3 on either side.

[0065] As an optimization to improve foam generation efficiency, perforated partitions 2.1 are installed on both sides of the polyether TPU film encapsulating polyurethane material A 2.7. Specifically, from left to right within housing 2.2, the following sequence is arranged: polyurethane material B 2.3 encapsulated on top by the polyether TPU film; perforated partitions 2.1; polyurethane material A 2.7 encapsulated within the polyether TPU film; perforated partitions 2.1; and polyurethane material B 2.3, also encapsulated on top by the polyether TPU film. When reaction unit 2.6 is activated, it pushes polyurethane material A 2.7 through perforated partitions 2.1 and into polyurethane material B 2.3 on either side.

[0066] like Figure 3As shown, the hole partition 2.1 includes a partition body 3.2 and a plurality of variable diameter holes 3.1 distributed on the partition body 3.2. Its length and width are determined by the inner wall size of the outer shell 2.2, and the height (i.e., the thickness of the hole partition) is 4mm to 8mm. The variable diameter holes 3.1 are truncated cone-shaped holes that are narrow at the top and wide at the bottom, with the hole diameter of the upper end being 1.5mm to 3mm and the hole diameter of the lower end being 3mm to 6mm. The small-diameter side of the variable diameter hole 3.1 is opposite to the polyurethane B material 2.3, and the large-diameter side is opposite to the polyurethane A material 2.7. When the black powder explodes and pushes the polyurethane A material 2.7 outward, the variable aperture design can accelerate the liquid outflow rate of a single hole, thereby improving the mixing efficiency of the polyurethane A material 2.7 and the polyurethane B material 2.3. At the same time, the variable diameter holes 3.1 on the porous partition 2.1 can divide the polyurethane material A 2.7 into multiple streams that enter the polyurethane material B 2.3. Each small stream of polyurethane material A 2.7 will be quickly surrounded by the polyurethane material B 2.3 on both sides, thereby achieving a rapid mixing reaction between the polyurethane material A 2.7 and the polyurethane material B 2.3, thereby improving the efficiency of polyurethane foam generation.

[0067] The polyurethane foam generator B1.7 is identical in structure to the polyurethane foam generator A1.1, differing only in size and placement. The polyurethane foam generator B1.7 is typically affixed to the center of the explosion-proof container's top cover 1.6. Its length, width, and height are 1.2 to 2 times those of the polyurethane foam generator A1.1, respectively. It is primarily used to generate polyurethane foam on the upper portion of the sphere.

[0068] Example 3:

[0069] This embodiment provides a method for detonating and destroying one or more suspected explosives using the spherical explosion-proof container in the above-mentioned embodiment 2.

[0070] Step 1: Place multiple explosives 1.3 on the electric heating wire mesh bags 1.2 in each explosion-proof partition, ensuring that the number of explosives in each explosion-proof partition is no more than one, to avoid the simultaneous detonation of multiple explosives caused by a single detonation.

[0071] Step 2: After ensuring all suspected explosives are placed within explosion-proof container sphere 1.5, close the container lid 1.6. Using wireless controller 1.10, control unit 2.5 detonates the black powder in reaction unit 2.6, pushing polyurethane material A 2.7 to flow sideways. After breaking the outer polyether TPU film, polyurethane material A 2.7 flows outward through the variable-diameter holes, creating a cross-flow mixing between polyurethane material A 2.7 and polyurethane material B 2.3. After waiting 3-5 minutes, polyurethane material A 2.7 and polyurethane material B 2.3 completely react to form a large amount of polyurethane foam, filling the entire explosion-proof container sphere 1.5 and the container lid 1.6. The multiple explosives 1.3 are now completely secured within the explosion-proof container by the foam, effectively preventing accidental detonation due to shaking or collision. The explosives can then be destroyed on-site or transported.

[0072] Step 3: After determining that the explosive 1.3 can be destroyed on site, the electric heating wire mesh bag 1.2 is connected to the battery 1.9 using the wire 1.8, and the electric heating wire mesh bag 1.2 is in a ready state.

[0073] After everyone has evacuated to a safe area, the electric heating wire mesh bag 1.2 is remotely controlled to heat the explosive 1.3 to a high temperature of approximately 450°C, exceeding the boiling point of typical explosives, thereby detonating the explosive 1.3. The explosion-proof container and the polyurethane foam inside it can absorb most of the explosion energy.

[0074] Step 4: Continue heating for 5 to 10 minutes to ensure that all explosives are ignited and detonated.

[0075] After the treatment is completed, use clean water and acetone to clean the tank body. If the tank body has no obvious deformation or damage, it can still be reused after replacing the polyurethane foam generator A1.1, electric heating wire net bag 1.2, and polyurethane foam generator B1.7.

[0076] Example 4:

[0077] Based on the above-mentioned Examples 1 to 3, this example provides a preferred formula of polyurethane material A 2.7 and polyurethane material B 2.3.

[0078] Low-density fast-foaming rigid polyurethane material is used, and its raw materials are 2.7 parts of polyurethane A and 2.3 parts of polyurethane B. The following parts are by weight:

[0079] The polyurethane A material 2.7 is an isocyanate; the isocyanate is polymethylene polyphenyl isocyanate (PAPI), with an average molecular weight in the range of 300 to 400, an NCO mass fraction of 31% to 32%, and an average functionality of 2.5 to 3.0.

[0080] Polyurethane B material 2.3 contains:

[0081]

[0082] The polyether polyol A is a polyether triol obtained by polymerization with propylene glycol as an initiator, with a molecular weight of 300-400 and a hydroxyl value of 450-550 mg KOH / g; the polyether polyol A enables the foaming material to have better fluidity.

[0083] The polyether polyol B is a polyether tetraol obtained by polymerization using a diamino compound as an initiator, preferably one or more of ethylenediamine and methylenedianiline, with an average molecular weight of 300 to 600, a hydroxyl value of 350 to 650 mg KOH / g, and an average functionality of 4 to 5. The polyether polyol B enables the molded polyurethane rigid foam to have good strength and dimensional stability.

[0084] The polyether polyol C is a copolyether polyol with a high primary hydroxyl content, preferably a propylene oxide-ethylene oxide copolyether triol, with a primary hydroxyl content of 70% to 90% and a total ethylene oxide link mass fraction of 10% to 20%. The polyether polyol C accelerates the polyurethane foaming reaction rate and rapidly forms and solidifies.

[0085] The catalyst is a tertiary amine catalyst, preferably one or more of N,N-dimethylcyclohexylamine, tetramethylethylenediamine, dimethylethanolamine and triethylenediamine.

[0086] The physical foaming agent is n-pentane or cyclopentane.

[0087] The foam stabilizer is a polyether-modified silicone surfactant.

[0088] The rigid polyurethane foam prepared by the above formula has fast foaming and curing speed, high strength after molding, good dimensional stability, and low density (30kg / m 3 ~35kg / m 3 ), no flame retardant material is selected, and it can be burned and cleaned, matching the use scenario of the present invention.

[0089] The preparation method of the above-mentioned low-density fast-foaming rigid polyurethane material is as follows:

[0090] (1) Preparation of polyurethane material A 2.7: Stir PAPI evenly and store for later use.

[0091] (2) Preparation of polyurethane material B 2.3: Weighed polyether polyol A, polyether polyol B and polyether polyol C are placed in a reactor and stirred. Then, weighed catalyst, physical foaming agent and foam stabilizer are added, mixed and stirred at room temperature, and stored for later use.

[0092] (3) Polyurethane A material 2.7 and polyurethane B material 2.3 are stored separately in a weight ratio of 1:1 to 1:2. When used, they are mixed and stirred by equipment to fill the spherical space of the explosion-proof tank. After the polyurethane rigid foam is foamed and cured, subsequent explosive disposal operations can be carried out.

[0093] As an example:

[0094] Polyurethane A material 2.7:

[0095] PAPI, average molecular weight 330

[0096] Polyurethane B material 2.3:

[0097]

[0098] As another example:

[0099] Polyurethane A material 2.7:

[0100] PAPI, average molecular weight 360

[0101] Polyurethane B material 2.3:

[0102]

[0103] After polyurethane A material 2.7 and polyurethane B material 2.3 are prepared and stored in a weight ratio of 1:2, the density of the polyurethane rigid foam after curing is about 32kg / m 3 , fill 1m 3 The space required is polyurethane A material 2.7 about 8.6L and polyurethane B material 2.3 about 19.4L.

[0104] Although the present invention has been described in detail above using general descriptions and specific embodiments, it will be apparent to those skilled in the art that modifications and improvements may be made thereto. Therefore, such modifications and improvements, without departing from the spirit of the present invention, are intended to be within the scope of protection claimed herein.

Claims

1. A method for protecting the storage and transportation of multiple explosives, characterized by: The internal space of the explosion-proof container is divided into multiple areas by arranging explosion-proof partitions in the explosion-proof container, and each area serves as an explosion-proof partition; Then, a polyurethane foam generator is set in the explosion-proof container; when the explosion-proof container is filled with explosives, the polyurethane foam generator is started to generate polyurethane foam to fill the entire explosion-proof container, at which time multiple explosives are completely fixed in the explosion-proof container by the polyurethane foam; An electric heating device is provided in each explosion-proof partition of the explosion-proof container. The electric heating device is used to support and heat the explosives placed in the explosion-proof partition. The explosives placed in the corresponding explosion-proof partition can be heated to a set temperature, thereby detonating the explosives.

2. The method for protecting storage and transportation of multiple explosives according to claim 1, characterized in that: At least one polyurethane foam generator is arranged in each explosion-proof partition.

3. A multi-explosive storage and transportation protection structure, comprising: An explosion-proof container, comprising: an explosion-proof container body having a top opening and an explosion-proof container top cover for opening or closing the top opening of the explosion-proof container body; characterized in that: it also includes: an explosion-proof partition and a polyurethane foam generator; A plurality of explosion-proof partitions are placed in the explosion-proof container body to divide the internal space of the explosion-proof container body into a plurality of explosion-proof partitions; a polyurethane foam generator is provided in the explosion-proof container body and / or on the explosion-proof container top cover; when explosives are contained in the explosion-proof container, the polyurethane foam generator is activated to generate polyurethane foam to fill the entire explosion-proof container, at which point the multiple explosives are completely fixed in the explosion-proof container by the polyurethane foam; An electric heating wire mesh bag is provided in each explosion-proof partition as an electric heating device, and the electric heating wire mesh bag plays the role of supporting and heating the explosives placed in the explosion-proof partition.

4. The multiple explosive storage and transportation protective structure according to claim 3, characterized in that: At least one polyurethane foam generator is provided in each explosion-proof partition inside the explosion-proof container body; the polyurethane foam generator is provided on the bottom surface of the explosion-proof container body and is used to generate polyurethane foam in the lower part of the explosion-proof container; A polyurethane foam generator is arranged on the lower end surface of the explosion-proof container top cover to generate polyurethane foam in the upper part of the explosion-proof container.

5. The multiple explosive storage and transportation protective structure according to claim 3, characterized in that: The polyurethane foam generator comprises: a shell, polyurethane material B, a sealing top cover, a control unit, a reaction unit and polyurethane material A; The housing is a box-like structure with an open top and sealed at the bottom and all sides. The center of the housing contains polyurethane material A encapsulated in a film, and polyurethane material B is located on both sides of the polyurethane material A. The top opening of the housing is sealed at a location corresponding to polyurethane material A by a sealing top cover, and the location corresponding to polyurethane material B is encapsulated by a film. The reaction unit is placed in the polyurethane material A. When the reaction unit is ignited and driven, the polyurethane material A is pushed to flow into the polyurethane materials B on both sides.

6. The multiple explosive storage and transportation protective structure according to claim 5, characterized in that: A porous partition is provided between the film encapsulating the polyurethane material A and the polyurethane material B.

7. The multiple explosive storage and transportation protective structure according to claim 6, characterized in that: The hole partition includes a partition body and a plurality of variable diameter holes distributed on the partition body; the variable diameter holes are truncated cone-shaped holes that are narrow at the top and wide at the bottom, wherein the small diameter side of the variable diameter hole is opposite to the polyurethane B material, and the large diameter side is opposite to the polyurethane A material.

8. The multiple explosive storage and transportation protective structure according to claim 5, characterized in that: The formulas of the polyurethane A material and the polyurethane B material are: Polyurethane A material is isocyanate; Polyurethane B material contains: Polyether polyol A 10-20 parts; Polyether polyol B 50-60 parts; Polyether polyol C 10-20 parts; Catalyst 0.5-3 parts; Physical foaming agent 15-30 parts; Foam stabilizer 1-10 parts; The above parts are parts by weight.

9. The multiple explosive storage and transportation protective structure according to claim 8, characterized in that: The weight ratio of the polyurethane material A to the polyurethane material B is 1:1 to 1:

2.

10. A method for destroying explosives by detonation, characterized in that: The multiple explosive storage and transportation protection structure according to claim 3 is adopted; Step 1: Place multiple explosives on the electric wire mesh bags in each explosion-proof partition, ensuring that there is no more than one explosive in each explosion-proof partition; Step 2: After confirming that all suspected explosives are placed in the explosion-proof container body, close the explosion-proof container cover; Starting the polyurethane foam generator to generate polyurethane foam to fill the entire explosion-proof container; Step 3: After it is determined that the explosives can be destroyed on site, the electric heating wire mesh bag is connected to the battery using a wire, and the electric heating wire mesh bag is in a ready state; After everyone has evacuated to a safe area, the electric heating wire mesh bag is remotely controlled to heat the explosives to the set temperature, thereby detonating the explosives; Step 4: Continue heating for the set time to ensure that all explosives are ignited and detonated.

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