Basalt fiber fireproof door

By using a combination of basalt fiber materials and alloy plates, the problems of heavy weight and poor heat insulation of steel fire doors have been solved, resulting in a lightweight, high-strength fire door with good heat insulation and environmental protection characteristics.

CN120990468APending Publication Date: 2025-11-21TONGYUZHONGDIAN BASALT NEW MATERIALS TECHNOLOGY CO LTD
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Patent Information

Application Number
CN202510925695.2
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2025-07-06
Publication Date
2025-11-21

AI Technical Summary

Technical Problem

Existing steel fire doors are heavy, inconvenient to open and close, and have poor heat insulation, making them unable to effectively block heat intrusion.

Method used

Basalt fiber material is used as the base material. Water-soluble resin, nano metal oxide, coupling agent and plasticizer are added to make basalt fiber panels and laminates. Combined with cobalt-based alloy plate and calcium silicate fire refractory plate, a lightweight and high-strength fire door structure is formed.

Benefits of technology

It achieves lightweight fire doors, improves heat insulation performance, effectively blocks heat radiation, and has environmentally friendly characteristics such as acid and alkali resistance, salt spray resistance, and being non-toxic and odorless.

✦ Generated by Eureka AI based on patent content.

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Abstract

The basalt fiber fireproof door comprises a fireproof door body, an outer side door plate and an inner side door plate are arranged on the two sides of the fireproof door body correspondingly, and a basalt fiber panel and a basalt fiber laminated plate are arranged on the inner wall of the outer side door plate and the inner wall of the inner side door plate correspondingly; the invention relates to the technical field of fireproof doors, the weight of the basalt fiber fireproof door is relatively light, the weight of the basalt fiber fireproof door is only 1 / 5 of that of a traditional steel fireproof door under the condition of the same size, and the basalt fiber fireproof door is convenient to open and close; the water-soluble resin, the nano metal oxide, the coupling agent, the plasticizer, the defoaming agent and the like are added in the manufacturing process of the basalt fiber panel, so that the strength, the toughness and the heat resistance of the basalt fiber composite material are improved, and heat can be prevented from being radiated to the back of a door while smoke and fire are resisted.
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Description

Technical Field

[0001] This invention relates to the field of fire door technology, specifically to a basalt fiber fire door. Background Technology

[0002] Fire doors are doors that meet the requirements of fire resistance stability, integrity, and thermal insulation. They are installed in fire-resistant compartments, evacuation stairwells, vertical shafts, and other similar locations. Normally open fire doors are kept open under normal circumstances for easy passage and can be used for fire evacuation in case of fire. Normally closed fire doors are kept closed to effectively block the intrusion of dense smoke and flames in the event of a fire. Existing fire doors are typically made of steel, and in practical use, they effectively block smoke and fire, with no apparent defects. However, fire doors made entirely of steel are very heavy. Although there are hinges for support and to facilitate opening and closing, fire doors lack a power-assist system, making it relatively difficult to operate due to their weight. In the event of a fire, while they can block smoke and fire, their thermal insulation is relatively poor, failing to block the intrusion of heat. Under intense fire, although the fire source cannot penetrate, heat will radiate behind the door, causing damage. Summary of the Invention

[0003] To address the shortcomings of existing technologies, this invention provides a basalt fiber fire door, which solves the problems of existing steel fire doors being heavy, inconvenient to open and close, and having poor heat insulation.

[0004] To achieve the above objectives, the present invention is implemented through the following technical solution: a basalt fiber fireproof door, comprising a fireproof door body, wherein an outer door panel and an inner door panel are respectively provided on both sides of the fireproof door body, and a basalt fiber panel and a basalt fiber laminate are respectively provided on the inner walls of the outer door panel and the inner door panel, wherein a honeycomb basalt plate is provided between the basalt fiber panel and the basalt fiber laminate;

[0005] Both the outer and inner door panels are divided into an inner core, a cladding layer, and an outer shell. The inner core is a basalt plate, the cladding layer is a cobalt-based alloy plate covering the outside of the basalt plate, and the outer shell is a calcium silicate refractory plate installed on the outside of the cobalt-based alloy plate.

[0006] Preferably, an edge seal is provided between the outer door panel and the inner door panel, and on the outside of the basalt fiber panel, the basalt fiber laminate, and the honeycomb basalt panel;

[0007] The basalt fiber panel is made by adding water-soluble resin, nano metal oxide, coupling agent, plasticizer and defoamer to basalt fiber as the base material, and hot pressing to form basalt fiber thin sheets. Finally, several layers of basalt fiber thin sheets are bonded together with inorganic adhesive to form a basalt fiber panel.

[0008] The basalt fiber laminate is made of basalt fiber as the base material, and is formed by impregnation, lamination, molding and pressing processes, followed by cutting.

[0009] This invention provides a basalt fiber fireproof door, which has the following beneficial effects:

[0010] Basalt fiber fire doors are relatively lightweight; for the same size, they weigh only 1 / 5 of traditional steel fire doors, making them easy to open and close.

[0011] During the manufacturing process of basalt fiber panels, water-soluble resins, nano-metal oxides, coupling agents, plasticizers, and defoamers are added to enhance the strength, toughness, and heat resistance of basalt fiber composite materials. In addition to blocking smoke and fire, they can also prevent heat from radiating behind the door.

[0012] Fire doors made from basalt fiber materials also have the advantages of being acid and alkali resistant, salt spray resistant, non-toxic and odorless, and pollution-free in production. Moreover, their tensile strength is no less than that of traditional steel fire doors. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the structure of the present invention.

[0014] In the diagram: 1. Fire door body; 2. Outer door panel; 3. Inner door panel; 4. Edge sealing; 5. Basalt fiber laminate; 6. Honeycomb basalt panel; 7. Basalt fiber panel. Detailed Implementation

[0015] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0016] Please see Figure 1 The present invention provides a technical solution: a basalt fiber fireproof door, including a fireproof door body 1, an outer door panel 2 and an inner door panel 3 respectively provided on both sides of the fireproof door body 1, a basalt fiber panel 7 and a basalt fiber laminate 5 respectively provided on the inner wall of the outer door panel 2 and the inner door panel 3, and a honeycomb basalt plate 6 provided between the basalt fiber panel 7 and the basalt fiber laminate 5;

[0017] Both the outer door panel 2 and the inner door panel 3 are divided into an inner core, a cladding layer and an outer shell. The inner core is a basalt plate, the cladding layer is a cobalt-based alloy plate covering the outside of the basalt plate, and the outer shell is a calcium silicate refractory plate installed on the outside of the cobalt-based alloy plate.

[0018] Cobalt-based alloy plates are hard alloys that can withstand various types of wear, corrosion, and high-temperature oxidation.

[0019] The door panels are connected by a high-temperature resistant inorganic adhesive. This adhesive is a mature existing adhesive with strong adhesion and high temperature resistance. It is a conventional technique in the bonding of door panels, so there is no need to go into detail about the specific composition and usage of the inorganic adhesive.

[0020] Basalt fiber: Continuous fiber drawn from natural basalt. It is a continuous fiber made by drawing basalt material at high speed through a platinum-rhodium alloy drawing spindle after melting basalt at 1450℃~1500℃. Its production process is a conventional technical means in the field of basalt products.

[0021] Basalt continuous fiber not only has high strength, but also has a variety of excellent properties such as electrical insulation, corrosion resistance, and high temperature resistance. In addition, the production process of basalt fiber results in less waste and less environmental pollution. Moreover, the product can be directly degraded in the environment after disposal without any harm. Therefore, it is a truly green and environmentally friendly material.

[0022] Furthermore, an edge sealing 4 is provided between the outer door panel 2 and the inner door panel 3 and on the outside of the basalt fiber panel 7, the basalt fiber laminate 5, and the honeycomb basalt panel 6.

[0023] The basalt fiber panel is made by adding water-soluble resin, nano metal oxide, coupling agent, plasticizer and defoamer to basalt fiber as the base material, and hot pressing to form basalt fiber thin sheets. Finally, several layers of basalt fiber thin sheets are bonded together with inorganic adhesive to form a basalt fiber panel.

[0024] The basalt fiber laminate is made of basalt fiber as the base material, and is formed by impregnation, lamination, molding and pressing processes, followed by cutting.

[0025] Those skilled in the art can connect the components in this case sequentially. The specific connection and operation sequence should refer to the working principle described below. The detailed connection methods are well-known technologies in the field. The working principle and process are mainly described below.

[0026] Example:

[0027] This fire door incorporates a cobalt-based alloy plate, resulting in higher overall strength and enhanced resistance to high temperatures and corrosion. Furthermore, it cannot be cut with an oxy-acetylene torch, adding to its security and anti-theft function. Using basalt fiber as the base material, the fire door is lightweight, resistant to acids, alkalis, and salt spray, non-toxic and odorless at high temperatures, and effectively insulates against heat transfer.

[0028] It should be noted that, in this document, relational terms such as "first" and "second" are used merely to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, the phrase "comprising an element defined as..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0029] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A basalt fiber fireproof door, comprising a fireproof door body (1), characterized in that: The fire door body (1) is provided with an outer door panel (2) and an inner door panel (3) on both sides respectively. The inner walls of the outer door panel (2) and the inner door panel (3) are provided with a basalt fiber panel (7) and a basalt fiber laminate (5) respectively. A honeycomb basalt plate (6) is provided between the basalt fiber panel (7) and the basalt fiber laminate (5). Both the outer door panel (2) and the inner door panel (3) are divided into an inner core, a cladding layer and an outer shell. The inner core is a basalt plate, the cladding layer is a cobalt-based alloy plate covering the outside of the basalt plate, and the outer shell is a calcium silicate refractory plate installed on the outside of the cobalt-based alloy plate.

2. The basalt fiber fireproof door according to claim 1, characterized in that, The outer door panel (2) and the inner door panel (3) are provided with an edge seal (4) located between them and on the outside of the basalt fiber panel (7), the basalt fiber laminate (5), and the honeycomb basalt panel (6). The basalt fiber panel is made by adding water-soluble resin, nano metal oxide, coupling agent, plasticizer and defoamer to basalt fiber as the base material, and hot pressing to form basalt fiber thin sheets. Finally, several layers of basalt fiber thin sheets are bonded together with inorganic adhesive to form a basalt fiber panel. The basalt fiber laminate is made of basalt fiber as the base material, and is formed by impregnation, lamination, molding and pressing processes, followed by cutting.