Fireproof honeycomb type sandwich antiknock wall containing polyurea coating

Abstract

The utility model belongs to the field of building construction, and particularly relates to a fireproof honeycomb type sandwich anti-explosion wall containing a polyurea coating. Comprising two calcium silicate fireproof plates, and the two calcium silicate fireproof plates are symmetrically arranged on the outer side; the two layers of fireproof rock wool are respectively arranged on the outer sides of the two calcium silicate fireproof plates; the anti-explosion structure is clamped between the two layers of fireproof rock wool; the two calcium silicate fireproof plates, the anti-explosion structure and the two layers of fireproof rock wool are connected together through the bolt connecting piece. The explosion-proof effect of rapidly maintaining the prefabricated explosion-proof wall is achieved by replacing the explosion-proof wall body, and the construction, installation and maintenance cost is effectively reduced.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the field of building construction, and specifically relates to a fireproof honeycomb type sandwich blast wall body containing a polyurea coating. BACKGROUND

[0002] Explosion load belongs to high-frequency load, and compared with static load, it is easier to cause damage to the structure. After explosion, the explosion wave generated contains great energy, and the energy impact in the instant of explosion not only causes harm to the structure and personnel at the explosion center, but also causes impact on the surrounding environment, causes structure vibration, and is usually accompanied by extremely strong noise. The blast wall refers to the wall with strong resistance to explosion pressure, has the ability to resist explosion impact wave, can limit the damage effect caused by explosion within a certain range, and controls the fragments generated, thereby preventing serious structure damage and personnel casualty to a large extent. In some industrial sites, military facilities and areas that may face explosion risks, the blast wall is an important facility for protecting personnel and equipment safety.

[0003] The traditional blast wall usually adopts thick reinforced concrete structure or steel plate structure, which has certain blast resistance, but has problems of large weight, high construction difficulty, high cost, poor fireproof performance and the like. The formed reinforced concrete blast wall cannot be disassembled and reused, and the wall body is prone to collapse after explosion, causing secondary damage. Therefore, a new blast wall structure is needed, which can effectively resist explosion impact and has the advantages of lightness, fireproofness, easy installation and reusability. SUMMARY

[0004] The utility model discloses a kind of fireproof honeycomb type sandwich blast wall body containing polyurea coating to solve the problems of poor fireproof performance and poor assembly of traditional blast wall.

[0005] The utility model takes the following technical scheme: a kind of fireproof honeycomb type sandwich blast wall body containing polyurea coating, comprising:

[0006] Two calcium silicate fireproof plates, two calcium silicate fireproof plates are symmetrically arranged outside;

[0007] Two layers of fireproof rock wool, two layers of fireproof rock wool are respectively arranged outside two calcium silicate fireproof plates;

[0008] Blast-resistant structure, the blast-resistant structure is clamped between two layers of fireproof rock wool;

[0009] Bolted joint, the bolted joint connects two calcium silicate fireproof plates, blast-resistant structure and two layers of fireproof rock wool together.

[0010] In some embodiments, the blast-resistant structure comprises:

[0011] A honeycomb composite layer is arranged in the middle, and a corrugated steel plate is arranged in the honeycomb composite layer;

[0012] Two composite reinforced fiber cement galvanized steel plates are arranged outside the honeycomb composite layer;

[0013] Two polyurea coating layers are arranged outside the two composite reinforced fiber cement galvanized steel plates.

[0014] In some embodiments, the composite reinforced fiber cement galvanized steel plate, the corrugated steel plate and the honeycomb composite layer are connected together by an epoxy resin adhesive.

[0015] In some embodiments, the bolted connection includes a threaded bolt, two bolt washers and two hexagonal nuts, the bolt passes through the two calcium silicate fireproof plates, the two layers of fireproof rock wool and the blast-resistant structure, and the bolt is provided with the bolt washers and the hexagonal nuts at both ends.

[0016] Compared with the prior art, the anti-blast plate is arranged on the inner side of the wall body, and the honeycomb sandwich structure layer is arranged between the anti-blast plates, so that the wall body can play a role of pressure reduction, energy absorption and protection when subjected to external impact force, and the integrity of the wall body is ensured; the polyurea material is sprayed on the outer side of the composite reinforced fiber cement galvanized steel plate, which can effectively enhance the blast resistance; at the same time, the fireproof plate and the fireproof rock wool are arranged on the outer side of the blast-resistant structure, so as to prevent the spread of fire and enable the blast-resistant wall to maintain the blast resistance in a fire environment. In addition, the blast-resistant wall is formed by a factory prefabrication method, and can be quickly installed on the supporting wall body by bolts; after the wall body is damaged by explosion, the blast-resistant effect of the prefabricated blast-resistant wall can be quickly maintained by replacing the blast-resistant wall body, thereby effectively reducing the construction, installation and maintenance costs. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 It is a three-dimensional structure schematic diagram of the utility model;

[0018] Figure 2 It is a structure section schematic diagram of the utility model;

[0019] Figure 3 It is an anti-blast structure layer section schematic diagram of the utility model;

[0020] Figure 4 It is a specific schematic diagram of the bolted connection of the utility model;

[0021] The marks in the figure represent respectively: 1, calcium silicate fireproof plate; 2, fireproof rock wool; 3, polyurea coating; 4, composite reinforced fiber cement galvanized steel plate; 5, corrugated steel plate; 6, honeycomb composite layer; 7, bolt connecting piece, including screw rod 71, gasket 72, hexagonal nut 73; 8, epoxy resin adhesive. DETAILED DESCRIPTION

[0022] The technical solutions in the patent embodiment of the utility model will be clearly and completely described below in combination with the drawings in the patent embodiment of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model patent, rather than all the embodiments. Based on the embodiments in the utility model patent, all other embodiments obtained by the ordinary skilled in the art without making creative labor belong to the scope of protection of the utility model patent.

[0023] A fireproof honeycomb sandwich blast-resistant wall body containing a polyurea coating, comprising:

[0024] 2 calcium silicate fireproof plates 1, two said calcium silicate fireproof plates 1 are symmetrically arranged on the outside;

[0025] 2 layers of fireproof rock wool 2, 2 layers of said fireproof rock wool 2 are arranged on the outside of the two calcium silicate fireproof plates 1 respectively;

[0026] A blast-resistant structure, said blast-resistant structure is arranged between the two layers of fireproof rock wool 2;

[0027] A bolt connecting piece 7, said bolt connecting piece 7 connects the two calcium silicate fireproof plates 1, the blast-resistant structure and the two layers of fireproof rock wool 2 together.

[0028] The blast-resistant structure comprises:

[0029] A honeycomb composite layer 6, said honeycomb composite layer 6 is arranged in the middle, and a corrugated steel plate 5 is arranged in the honeycomb composite layer 6;

[0030] 2 composite reinforced fiber cement galvanized steel plates 4, 2 said composite reinforced fiber cement galvanized steel plates 4 are arranged on the outside of the honeycomb composite layer 6;

[0031] 2 polyurea coatings 3, 2 said polyurea coatings 3 are arranged on the outside of the two composite reinforced fiber cement galvanized steel plates 4.

[0032] The composite reinforced fiber cement galvanized steel plate 4, the corrugated steel plate 5 and the honeycomb composite layer 6 are connected together through the epoxy resin adhesive 8.

[0033] The bolted joint 7 includes a threaded bolt 71, two bolt washers 72 and two hexagonal nuts 73, the threaded bolt 71 penetrates through the two calcium silicate fireproof plates 1, the two layers of fireproof rock wool 2 and the blast-resistant structure, and the threaded bolt 71 is provided with the bolt washers 72 and the hexagonal nuts 73 at both ends.

[0034] As shown in Figures 1-2 , the calcium silicate fireproof plate 1 and the fireproof rock wool 2 are located at the outermost side of the entire wall structure, preventing the performance of the blast-resistant structure material from being degraded due to the effect of fire, resulting in a decrease in blast-resistant performance. The blast-resistant structure adopts a sandwich structure, which is composed of a composite reinforced fiber cement galvanized steel plate 4 containing polyurea, a corrugated steel plate 5 and a honeycomb sandwich structure 6. As shown in Figure 3 , when manufacturing the honeycomb blast-resistant wall, the honeycomb structure layer and the composite reinforced fiber cement galvanized steel plate can be manufactured separately, and the polyurea is sprayed on the surface of the composite reinforced fiber cement galvanized steel plate, and then the components are assembled through the epoxy resin adhesive.

[0035] The blast-resistant wall is connected as a whole by bolted joints, realizing a modular installation mode. This makes the installation process more convenient and efficient, and can be flexibly combined and adjusted according to actual needs, greatly saving time and cost.

[0036] As shown in Figure 4 , the bolted joint 7 includes a threaded bolt 71, two bolt washers 72 and two hexagonal nuts 73, the threaded bolt 71 penetrates through the two calcium silicate fireproof plates 1, the two layers of fireproof rock wool 2, the composite reinforced fiber cement galvanized steel plate 4, the honeycomb composite layer 6, the corrugated steel plate 5, the composite reinforced fiber cement galvanized steel plate 4, the fireproof rock wool 2 and the calcium silicate fireproof plate 1, and is connected with the hexagonal nuts 73, realizing the joint connection of the two calcium silicate fireproof plates 1, the fireproof rock wool 2, the composite reinforced fiber cement galvanized steel plate 4, the corrugated steel plate 5 and the honeycomb composite layer 6. The honeycomb composite layer 6, the corrugated steel plate 5 and the composite reinforced fiber cement galvanized steel plate 4 are connected through the epoxy resin adhesive 8, effectively avoiding the movement of the honeycomb structure layer 6 in the plane, making the entire blast-resistant structure compact and integrated, and ensuring the long-term blast-resistant performance of the wall. The joints between the plates in the blast-resistant unit are in the shape of a Chinese character, ensuring the appearance and waterproof performance.

[0037] Finally, it should be noted that: the above embodiments are only used to illustrate the technical solutions of the present application, but not to limit them; although the present application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that: it can still modify the technical solutions recorded in the foregoing embodiments, or make equivalent replacement for part or all of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present application.

Claims

1. A fire resistant honeycomb core sandwich blast wall comprising a polyurea coating, characterized in that, The utility model relates to a kind of anti-explosion structures of calcium silicate fireproof plate, it is characterized by: including: 2 calcium silicate fireproof plates (1), two described calcium silicate fireproof plates (1) are symmetrically arranged outside side; 2 layers of fireproof rock wool (2), 2 layers of described fireproof rock wool (2) are arranged respectively outside of two calcium silicate fireproof plates (1); Anti-explosion structure, the anti-explosion structure is clamped between 2 layers of fireproof rock wool (2); Bolted joint (7), the bolted joint (7) connects two calcium silicate fireproof plates (1), anti-explosion structure and 2 layers of fireproof rock wool (2) together.

2. The fire resistant honeycomb cored blast wall containing a polyurea coating according to claim 1, characterized in that, The anti-explosion structure includes: Honeycomb composite layer (6), the honeycomb composite layer (6) is arranged in middle, and wave-shaped steel sheet (5) is arranged in honeycomb composite layer (6); 2 composite reinforced fiber cement galvanized steel sheets (4), two described composite reinforced fiber cement galvanized steel sheets (4) are clamped outside of honeycomb composite layer (6); 2 polyurea coatings (3), two described polyurea coatings (3) are arranged outside of two composite reinforced fiber cement galvanized steel sheets (4).

3. The fire resistant honeycomb cored blast wall containing a polyurea coating according to claim 2, characterized in that, The composite reinforced fiber cement galvanized steel sheet (4), wave-shaped steel sheet (5) and honeycomb composite layer (6) are connected together by epoxy resin adhesive (8).

4. The fire resistant honeycomb cored blast wall containing a polyurea coating of claim 1, wherein, The bolted joint (7) includes bolt (71) with thread, two bolt washers (72) and two hexagonal nuts (73), bolt (71) passes through two calcium silicate fireproof plates (1), 2 layers of fireproof rock wool (2) and anti-explosion structure, and bolt (71) both ends are provided with bolt washer (72) and hexagonal nut (73).

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