Fireproof flame-retardant structure of coal mine ventilating duct

By introducing isolation and installation components into the ventilation ducts of coal mines, the rapid descent and fire extinguishing of the partition panels are achieved, solving the problem of fire spread, improving fire resistance and safety, and ensuring the stable operation of the ventilation system.

CN223594219UActive Publication Date: 2025-11-25RES CENT OF THE MINISTRY OF EMERGENCY MANAGEMENT (CHINA COAL IND DEV RES CENT)
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Patent Information

Application Number
CN202520169273.2
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-01-24
Publication Date
2025-11-25
Estimated Expiration
2035-01-24

AI Technical Summary

Technical Problem

Coal mine ventilation ducts are prone to becoming pathways for fire to spread, and existing technologies are insufficient to effectively contain the fire, leading to serious casualties and property damage.

Method used

A fireproof and flame-retardant structure for coal mine ventilation ducts was designed, employing isolation components and installation components. The isolation components include columns, partition plates, compression springs, positioning rods, support frames, and fuse rods. The installation components include clamping frames, movable blocks, bidirectional screws, movable shells, and connecting plates. Through the cooperation of sliding grooves and fuse rods, the partition plates can be quickly lowered and sealed. Combined with the spraying of fire extinguishers, the airflow is blocked and the fire is extinguished.

Benefits of technology

It effectively prevents the spread of fire, improves the fire resistance and safety of the ventilation system, ensures smooth ventilation, enhances installation flexibility and sealing, and guarantees the safety of underground operations.

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Abstract

The utility model discloses a fireproof flame-retardant structure of a coal mine ventilating duct, which relates to the technical field of ventilating ducts and comprises a ventilating main body, and an isolating component is arranged in the middle of the ventilating main body. The ventilation device comprises a ventilation main body and an isolation assembly, the isolation assembly comprises stand columns, a partition plate, an extrusion spring, a positioning rod, a supporting frame and a fusing rod, a sliding groove is formed in the middle of the interior of the ventilation main body, and the two stand columns are installed on the ventilation main body. The fusing rod is matched with the sliding groove in the middle of the interior of the ventilation body, it is guaranteed that airflow can be rapidly blocked and fire spreading can be prevented in the fire disaster, the positioning rod penetrates through the two sides of the partition plate and is sleeved with the extrusion spring, the partition plate is supported to be located above the ventilation body in the normal state, smooth ventilation is guaranteed, and the fusing rod is fused in the fire disaster, and the extrusion spring pushes the partition plate to fall to achieve isolation; and the safety of the fireproof flame-retardant structure is improved.
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Description

TECHNICAL FIELD

[0001] The utility model relates to a ventilation pipeline technical field, concretely is a coal mine ventilation pipeline fire -retardant structure. BACKGROUND

[0002] In the coal mining industry, the ventilation system plays a decisive role in ensuring the safety of underground operation, the underground environment of coal mine is complex, and flammable and explosive gases such as gas exist, fire hazards always threaten production safety and personnel life, once fire occurs, the fire is extremely easy to spread rapidly with the help of ventilation pipeline, causes large -scale disaster, causes serious personnel casualty and property loss;

[0003] Therefore, the coal mine ventilation pipeline fire -retardant structure is provided. UTILITY MODEL CONTENT

[0004] The utility model discloses a coal mine ventilation pipeline fire -retardant structure.

[0005] To realize above -mentioned purpose, the utility model provides the following technical scheme: a coal mine ventilation pipeline fire -retardant structure, including ventilation main part, the ventilation main part middle is provided with isolation component;

[0006] The isolation component includes a stand, a partition plate, an extrusion spring, a positioning rod, a support frame and a fuse rod, the ventilation main part is internally provided with a sliding groove, the stand is provided with two groups, and the two groups of stands are installed on the upper surface of the ventilation main part, the inner side of the stand is also provided with a sliding groove, the partition plate is movably installed in the sliding groove, the upper end of the positioning rod is installed on the inner wall of the sliding groove, the lower end of the positioning rod is installed on the bottom surface of the ventilation main part, and the positioning rod penetrates the two sides of the partition plate, the extrusion spring is sleeved on the outer side of the positioning rod, the upper end of the extrusion spring is installed on the inner wall of the sliding groove, the lower end of the extrusion spring is in contact with the upper surface of the partition plate, the support frame is provided with two groups, and the two groups of support frames are installed on the inner wall of the ventilation main part, the fuse rod is installed on the inner side of the two groups of support frames, the fuse rod is provided with a support rod, and the upper end of the support rod is installed on the bottom surface of the partition plate.

[0007] As a further scheme of the utility model: the bottom surface of the partition plate is provided with a sealing gasket.

[0008] As a further scheme of the utility model: the ventilation main body upper surface is provided with mounting assembly, the mounting assembly includes clamping frame, movable block, two-way screw rod, movable shell, connecting plate and mounting plate, the clamping frame is provided with two groups, and two groups of clamping frames are all installed on the outside of ventilation main body, the movable block is installed on the upper surface of clamping frame, the movable shell is installed on the outside of movable block, the two-way screw rod is installed in movable shell, and two groups of movable blocks are sleeved on the two sides of two-way screw rod, one end of two-way screw rod penetrates the side surface of movable shell, and the one end of two-way screw rod is provided with adjusting nut, the connecting plate is installed on the upper surface of movable shell, and the mounting plate is installed on the upper surface of connecting plate.

[0009] As a further scheme of the utility model: the clamping frame inner side lower surface is installed with antiskid pad, the clamping frame inner side upper surface is installed with limit block, and the mounting plate surface is evenly provided with mounting hole.

[0010] As a further scheme of the utility model: the ventilation main body upper surface both sides are provided with spraying port, the spraying port upper surface is installed with fire extinguisher, the fire extinguisher lower surface is installed with spray head, and the spray head rear surface is installed with electromagnetic valve.

[0011] As a further scheme of the utility model: the ventilation main body both sides are provided with splicing port.

[0012] Compared with the prior art, the utility model has the beneficial effects that:

[0013] 1, the utility model discloses a fireproof and flame-retardant structure, including ventilation main body, two groups of stand column, isolation assembly, partition plate, positioning rod, extrusion spring, sealing pad, fire extinguisher, spray head and electromagnetic valve, the ventilation main body upper surface is provided with two groups of stand column, and the two groups of stand column are all installed on the upper surface of ventilation main body.

[0014] 2. The utility model discloses a mounting assembly is set up, and two groups of clamping frame are installed on the outside of the ventilation main body, and cooperate with the movable block, movable shell, two -way screw rod. The adjusting nut of two -way screw rod one end is rotated, can drive movable block relative movement, quick -adjusting clamping frame spacing, can quickly adapt to different size ventilation main body, greatly promote the installation flexibility. In addition, the antiskid pad under the inside of clamping frame, effectively prevent the sliding displacement in the pipeline installation and use, the limiting block on the inside upper portion ensures the installation accuracy, and the mounting hole on the surface of mounting plate improves the installation convenience, realizes quick installation, and effectively guarantees the stable operation of ventilation system under the complex environment of coal mine.

[0015] Other advantages, objects, and features of the present utility model will be in part apparent and in part pointed out hereinafter based on the accompanying drawings and detailed description, and will be elabrated to those skilled in the art based on the study of the following, or can be taught from the practice of the present utility model. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 It is the overall schematic diagram in the embodiment of the utility model;

[0017] Figure 2 It is the stand portion section view schematic diagram in the embodiment of the utility model;

[0018] Figure 3 It is Figure 2 The enlarged schematic diagram of A;

[0019] Figure 4 It is the overall section schematic diagram in the embodiment of the utility model;

[0020] Figure 5 It is the mounting assembly explosion schematic diagram in the embodiment of the utility model.

[0021] In the drawing: 1, ventilation main body;2, isolation assembly;21, stand;22, partition board;23, extrusion spring;24, positioning rod;25, support frame;26, fuse rod;3, mounting assembly;31, clamping frame;32, movable block;33, two -way screw rod;34, movable shell;35, connecting plate;36, mounting plate;37, antiskid pad;38, limiting block;4, fire extinguisher;41, spray head. DETAILED DESCRIPTION

[0022] The specific embodiments of the utility model will be further described below in conjunction with the drawings, and it needs to be explained here that the description of these embodiments is used to help understanding the utility model, but does not constitute the limitation to the utility model.

[0023] In addition, the technical features involved in each embodiment of the utility model described below can be combined with each other as long as there is no conflict between them.

[0024] Please refer to the attached Figure 1 -attached Figure 5 The utility model discloses a coal mine ventilation pipeline fire -resistant structure, including ventilation main body 1, set up the isolation assembly 2 in the middle of ventilation main body 1, and the isolation assembly 2 is by stand 21, partition plate 22, extrusion spring 23, positioning rod 24, support frame 25 and fuse rod 26 constitutes, the sliding groove in the middle in ventilation main body 1 inside, with the inboard sliding groove of two groups of stand 21 installed on the upper surface of ventilation main body 1, provide accurate sliding track for partition plate 22, when fire breaks out, partition plate 22 can respond quickly, effectively block airflow, contain the spread of fire along the ventilation pipeline, and the valuable time for the safety of underground personnel and equipment is strived for, and positioning rod 24 is like the loyal guard, and its upper end is fixed on the inner wall of sliding groove, and the lower end is firmly rooted in the bottom surface of ventilation main body 1 inside, and penetrates the both sides of partition plate 22, and the extrusion spring 23 of outside sleeve setting, in daily ventilation, by its elastic support force, hold up partition plate 22 steadily in the upper of ventilation main body 1, guarantee smooth ventilation, once fire arrives, temperature rises, make fuse rod 26 melt rapidly, and the extrusion spring 23 that loses support releases strong elastic force instantaneously, and push partition plate 22 and fall quickly, realize reliable isolation, and support frame 25 holds up fuse rod 26, and the support rod in the middle of fuse rod 26 is closely connected the bottom surface of partition plate 22, further enhances structural stability, under normal conditions, they work cooperatively, ensure that the whole isolation assembly 2 runs stably, can accurate trigger partition action, and the excellent fire -resistant performance is highlighted.

[0025] Example one, the bottom surface of partition plate 22 is installed with sealing pad, and the upper surface of ventilation main body 1 is provided with installation assembly 3, the installation assembly 3 includes clamping frame 31, movable block 32, two-way screw rod 33, movable shell 34, connecting plate 35 and installation plate 36, the clamping frame 31 is provided with two groups, and is installed on the outside of ventilation main body 1, the movable block 32 is installed on the upper surface of clamping frame 31, the movable shell 34 is installed on the outside of movable block 32, the two-way screw rod 33 is installed in movable shell 34, and the two groups of movable block 32 are sleeved on the both sides of two-way screw rod 33, one end of two-way screw rod 33 penetrates the side surface of movable shell 34, and one end of two-way screw rod 33 is installed with adjusting nut, the connecting plate 35 is installed on the upper surface of movable shell 34, and the installation plate 36 is installed on the upper surface of connecting plate 35;

[0026] Specifically, the sealing gasket installed on the bottom surface of the partition plate 22 can tightly fit the inner bottom surface of the ventilation main body 1, ensuring that high-temperature smoke, toxic gas and flames do not leak from the gap when a fire occurs, greatly enhancing fire safety. The ventilation main body 1 is provided with a mounting assembly 3, two sets of clamping frames 31 are installed on the outer side of the ventilation main body 1, the movable block 32 and the bidirectional screw rod 33 in the movable shell 34 constitute a flexible adjustment mechanism, and the adjustment nut at one end of the bidirectional screw rod 33 can drive the movable block 32 to move along the bidirectional screw rod 33, quickly adjusting the distance between the clamping frames 31, easily adapting to different ventilation main bodies 1, improving installation flexibility, and the connection plate 35 and the mounting plate 36 are provided to further facilitate installation, providing more reliable and flexible protection for the fireproof and flame-retardant installation process of the coal mine ventilation system, and contributing to the safety and efficiency of underground operation.

[0027] In the second embodiment, the anti-slip pad 37 is installed on the inner side of the clamping frame 31, the limiting block 38 is installed on the upper side of the inner side of the clamping frame 31, the mounting holes are evenly arranged on the surface of the mounting plate 36, the spray ports are arranged on the upper surface of the ventilation main body 1, the fire extinguisher 4 is installed on the spray port, the spray head 41 is installed below the fire extinguisher 4, the electromagnetic valve is installed behind the spray head 41, and the splicing port is arranged on both sides of the ventilation main body 1.

[0028] Specifically, the anti-slip pad 37 on the inner side of the clamping frame 31 effectively increases the friction, preventing the ventilation main body 1 from falling during installation and use, and improving stability. The limiting block 38 on the inner side of the clamping frame 31 precisely limits the position of the ventilation main body 1, ensuring accurate installation. The mounting holes evenly distributed on the surface of the mounting plate 36 improve installation efficiency. The splicing port arranged on both sides of the ventilation main body 1 facilitates quick splicing and extension. The spray ports on the upper two sides are connected to the fire extinguisher 4. The spray head 41 is controlled by the electromagnetic valve and can quickly spray fire extinguishing agent when encountering a fire, extinguishing the fire in time and ensuring the safety of coal mine ventilation.

[0029] Working principle:

[0030] First, in normal ventilation, the stand column 21 in the isolation assembly 2 is stably installed on the ventilation body 1, the inner side cooperates with the sliding groove in the middle of the ventilation body 1 inside, provides accurate sliding track for the partition plate 22, the positioning rod 24 penetrates through both sides of the partition plate 22, the outer side sets the extrusion spring 23 to provide the downward pressure, at the same time, the support frame 25 supports the fuse rod 26, the support rod in the middle of the fuse rod 26 is connected to the bottom surface of the partition plate 22, ensures that the whole isolation assembly 2 structure is stable, in the installation assembly 3, by rotating the adjusting nut of one end of the bidirectional screw rod 33, the movable block 32 is driven to move along the bidirectional screw rod 33, the spacing of the clamping frame 31 can be quickly adjusted, different ventilation bodies 1 are easily adapted, the connecting plate 35 and the installation plate 36 are convenient for installation, the installation hole on the surface of the installation plate 36 is convenient for the quick fixing of the connecting piece, the antiskid pad 37 below the inner side of the clamping frame 31 prevents the ventilation body 1 from falling, the limiting block 38 above the inner side ensures that the installation position is accurate, the splicing interface on both sides of the ventilation body 1 is convenient for quickly splicing and extending the ventilation system, when the fire occurs, the ambient temperature rises, reaches the melting point of the fuse rod 26, the fuse rod 26 melts rapidly, the extrusion spring 23 loses support and releases strong elastic force instantaneously, pushes the partition plate 22 to fall rapidly, the sealing pad on the bottom surface of the partition plate 22 closely contacts the bottom surface inside the ventilation body 1, effectively blocks the airflow, prevents the high-temperature smoke, toxic gas and flame from passing through, and suppresses the spread of the fire in the ventilation pipeline, at the same time, the fire extinguisher 4 connected with the spraying port on both sides above the ventilation body 1 sprays the fire extinguishing agent from the nozzle 41 under the control of the electromagnetic valve, extinguishes the fire source in the pipeline in time, and thus, the whole working process is completed.

[0031] The above-mentioned front, rear, left, right, top, bottom are based on the Figure 1 in the drawings.

[0032] In the description of the present application, it should be understood that the orientation or positional relationship indicated by the terms "center", "longitudinal", "transverse", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer" and the like are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and therefore cannot be understood as indicating or implying that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the protection scope of the present application.

[0033] The embodiments of the present application are described in detail above in combination with the drawings, but the present application is not limited to the described embodiments.

[0034] For those skilled in the art, various changes, modifications, replacements and variations can be made to these embodiments without departing from the principles and spirits of the present application, and still fall within the protection scope of the present application.

Claims

1. A fireproofing and flame-retardant structure for a coal mine ventilation duct, comprising a ventilation main body (1), characterized in that: The ventilation body (1) is provided with a partition assembly (2) in the middle; The ventilation body (1) is provided with a partition assembly (2) in the middle; The partition assembly (2) comprises a stand (21), a partition plate (22), an extrusion spring (23), a positioning rod (24), a support frame (25) and a fuse rod (26), a sliding groove is formed in the middle of the inside of the ventilation body (1), the stand (21) is provided with two groups, and the two groups of stands (21) are installed on the upper surface of the ventilation body (1); sliding grooves are formed in the inner sides of the stands (21); the partition plate (22) is movably installed in the sliding groove; the upper end of the positioning rod (24) is installed on the inner wall of the sliding groove; the lower end of the positioning rod (24) is installed on the bottom surface of the inside of the ventilation body (1); the positioning rod (24) penetrates through the two sides of the partition plate (22); the extrusion spring (23) is sleeved on the outer side of the positioning rod (24); the upper end of the extrusion spring (23) is installed on the inner wall of the sliding groove; the lower end of the extrusion spring (23) is in contact with the upper surface of the partition plate (22); the support frame (25) is provided with two groups, and the two groups of support frames (25) are installed on the inner wall of the ventilation body (1); the fuse rod (26) is installed on the inner sides of the two groups of support frames (25); the fuse rod (26) is provided with a support rod in the middle; the upper end of the support rod is installed on the bottom surface of the partition plate (22).

2. The fireproof and flame-retardant structure of a coal mine ventilation pipeline according to claim 1, characterized in that: The bottom surface of the partition plate (22) is provided with a sealing gasket.

3. The fireproof and flame-retardant structure of a coal mine ventilation pipeline according to claim 1, characterized in that: The upper surface of the ventilation body (1) is provided with a mounting assembly (3), the mounting assembly (3) comprises a clamping frame (31), a movable block (32), a bidirectional screw rod (33), a movable shell (34), a connecting plate (35) and a mounting plate (36), the clamping frame (31) is provided with two groups, and the two groups of clamping frames (31) are installed on the outer sides of the ventilation body (1); the movable block (32) is installed on the upper surface of the clamping frame (31); the movable shell (34) is installed on the outer side of the movable block (32); the bidirectional screw rod (33) is installed in the movable shell (34); the two groups of movable blocks (32) are sleeved on the two sides of the bidirectional screw rod (33); one end of the bidirectional screw rod (33) penetrates through the side surface of the movable shell (34); one end of the bidirectional screw rod (33) is provided with an adjusting nut; the connecting plate (35) is installed on the upper surface of the movable shell (34); and the mounting plate (36) is installed on the upper surface of the connecting plate (35).

4. The fireproof and flame-retardant structure of a coal mine ventilation pipeline according to claim 3, characterized in that: The inner side of the clamping frame (31) is provided with an antiskid pad (37) and a limiting block (38).

5. The fireproof and flame-retardant structure of a coal mine ventilation pipeline according to claim 1, characterized in that: The upper surface of the clamping frame (31) is provided with an antiskid pad (37) and a limiting block (38).

6. The fireproof and flame-retardant structure of a coal mine ventilation pipeline according to claim 1, characterized in that: The upper surface of the clamping frame (31) is provided with an antiskid pad (37) and a limiting block (38). The upper surface of the clamping frame (31) is provided with an antiskid pad (37) and a limiting block (38). The upper surface of the clamping frame (31) is provided with an antiskid pad (37) and a limiting block (38).