Portable hanging type sealed explosion-proof powder bag

Abstract

The utility model belongs to the technical field of coal mine underground explosion prevention, and relates to a portable hanging type sealing explosion-proof powder bag which comprises a bag body and a hanging belt arranged at the top of the bag body, and explosion suppression powder or fire extinguishing powder is contained in the bag body. The bag body is provided with a powder filling opening for filling explosion suppression powder or fire extinguishing powder into the bag body and a tearing line which is torn under the action of explosion shock waves, so that the explosion suppression powder or the fire extinguishing powder in the bag body is thrown out to form an explosion suppression barrier. The light-weight design is adopted, portability and flexibility are remarkably improved, the sealing and easy-to-tear integrated design is achieved, safety, high efficiency and simple and convenient hanging installation are both considered, and adaptability and deployment efficiency are enhanced.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the coal mine underground explosion -proof technical field relates to a portable hanging type sealed explosion -proof powder bag. BACKGROUND

[0002] The coal mine operating environment is complex, and the gas and coal dust explosion risk constitutes a major safety threat. In the explosion prevention and control technology system, explosion-proof / explosion suppression equipment as a key protection means, its performance directly affects the degree of damage. In recent years, the new development pure mechanical type shock wave induction trigger explosion-proof device although gradually popular, its through trigger mechanism release high pressure gas, make high pressure gas drive fire extinguishing powder from explosion-proof device, thus realize extinguishing fire, but pure mechanical type shock wave induction trigger explosion-proof device exposes the following technical defects in practical application:

[0003] Sealing reliability is insufficient: explosion-proof device is equipped with high pressure cavity, but multiple component connection mode has design defects. Flange interface, threaded joint and other key parts are prone to air leakage due to complex underground working conditions (moisture, vibration), resulting in insufficient trigger pressure, directly affecting the reliability of device action; Mechanical structure interference risk: the explosion-proof device adopts long stroke push rod trigger mechanism (length reaches 5-7m), which is harsh on installation accuracy. If there is a small angle deviation between the push rod axis and the trigger component (affected by roadway deformation or installation error), mechanical jamming is easy to occur, causing trigger failure; Environmental adaptability defects: pure mechanical structure lacks necessary protection, and high humidity environment in the underground easily causes transmission components to rust. The measured data shows that in the roadway with relative humidity >85%, the exposed piston, spring and other components are rusted obviously within 3 months, significantly increasing the trigger resistance; Dust invasion problem: the open structure design exposes the movable parts directly to the coal dust environment. Respirable dust with particle size <0.5mm can penetrate into the transmission gap, not only causing lubrication failure, but also possibly forming a physical barrier. The measured case in a certain mine shows that when the accumulated dust amount reaches 50g, the device startup resistance increases by more than 40%; Engineering application limitations: the pure mechanical type shock wave induction trigger explosion-proof device is bulky (mass >130kg) and needs to be matched with a special installation bracket. The existing installation process needs to install multiple anchor rods on the roadway roof to fix the channel steel guide rail, and the construction period is as long as 8-12 hours. The large volume also causes transportation difficulties, and additional mechanical lifting equipment is needed when moving in the mining face.

[0004] In summary, there is an urgent need to develop a new explosion-proof / explosion suppression equipment to solve the problem of gas and coal dust explosion risk in the coal mine. UTILITY MODEL CONTENT

[0005] Therefore, the utility model aims at providing a portable hanging type sealed explosion-proof powder bag to solve the problems of existing explosion-proof device such as being heavy, complicated installation and being easily affected by environment.

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] A portable hanging sealed explosion-proof powder bag includes a bag body and a hanging strap disposed on the top of the bag body, wherein the bag body contains explosion-suppressing powder or fire extinguishing powder.

[0008] The bag is provided with a filling port for loading explosion-suppressing powder or fire-extinguishing powder into the bag, and a tear line for tearing under the action of an explosion shock wave, so as to throw out the explosion-suppressing powder or fire-extinguishing powder from the bag and form an explosion-suppressing barrier.

[0009] Furthermore, it also includes a protective surface covering the powder filling port and the tear line, one side of which is attached to the bag body;

[0010] A central fixing buckle is provided on the protective surface, and an upper fixing buckle and a lower fixing buckle are provided on the bag body, respectively located above and below the powder filling port and the tear line, to form a fixing buckle for fixing the protective surface;

[0011] When the middle fixing buckle is connected to the upper fixing buckle, the protective surface opens to expose the powder filling port and the tear line, so as to facilitate the filling and spreading of powder. When the middle fixing buckle is connected to the lower fixing buckle, the protective surface covers the powder filling port and the tear line to protect them.

[0012] Furthermore, at least one rib arranged in the circumferential direction is provided on the bag body to improve the tensile strength of the bag body.

[0013] Furthermore, the sling is provided with at least one hanging hole for suspending the explosion-proof powder bag on the hook.

[0014] Furthermore, the powder filling port adopts a chain design for easy opening and closing.

[0015] Furthermore, the tear line adopts an intermittent linear design, which facilitates tearing under the action of an explosive shock wave.

[0016] Furthermore, the powder filling port is located on the side or horizontal surface of the bag.

[0017] Furthermore, the bag body is designed in an elliptical or cylindrical shape and is made of flame-retardant and antistatic material.

[0018] Furthermore, the bag body is made of flame-retardant and antistatic polyester fiber material.

[0019] Furthermore, one side of the protective surface is fixed to the bag body by heat sealing or sewing to connect it to the bag body.

[0020] The beneficial effects of this utility model are as follows:

[0021] 1. Lightweight design significantly improves portability and flexibility.

[0022] This technical solution employs a lightweight design, with the device weight controllable between 3-30 kg, and supports customized weight based on actual needs. Compared to traditional explosion-proof devices (often exceeding 130 kg), this significantly reduces the burden of handling and installation. This feature allows for greater flexibility in the narrow and complex environment of underground coal mines, and facilitates easier installation, improving operational efficiency while reducing the labor intensity and safety risks for operators. The innovation of the lightweight design lies in balancing performance and portability, providing a more efficient solution for underground operations.

[0023] 2. The design combines a sealed seal with an easy-tear mechanism, ensuring both safety and high efficiency.

[0024] This solution employs an elliptical or cylindrical sealed bag structure, which is compact in size, facilitating transportation and relocation, and is particularly suitable for space-constrained environments in coal mines. The bag body is made of flame-retardant and anti-static material to ensure safety in high-risk environments. Simultaneously, the bag design integrates sealing and tear resistance: the sealing effectively isolates dust and moisture, protecting the internal explosion-suppressing medium from external influences; the tear resistance ensures that under the impact of an explosion shock wave, the bag body can rupture rapidly, releasing the explosion-suppressing powder to form a protective barrier. This innovative design not only improves the operational reliability of the device but also solves the problem of traditional explosion-proof devices being susceptible to environmental interference, achieving both practicality and safety.

[0025] 3. Simple hanging installation, enhancing adaptability and deployment efficiency.

[0026] This technical solution features hanging holes and straps at the top of the bag, allowing for horizontal hanging simply by hooks, eliminating the need for complex fixing equipment and making installation quick and easy. This design significantly reduces installation difficulty and time costs, making it particularly suitable for the variable working environment of underground coal mines. Whether for temporary deployment or long-term use, the device can quickly adapt to different scenarios, demonstrating high practicality. Furthermore, the simplified installation method reduces reliance on specialized tools and skills, making it more valuable for widespread application and fully reflecting the innovative thinking and ease of operation of the technical solution.

[0027] Other advantages, objectives, and features of this invention will be set forth in part in the description which follows, and in part will be apparent to those skilled in the art from the following examination and study, or may be learned from practice of this invention. The objectives and other advantages of this invention can be realized and obtained through the following description. Attached Figure Description

[0028] To make the objectives, technical solutions, and advantages of this utility model clearer, the preferred embodiments of this utility model will be described in detail below with reference to the accompanying drawings, wherein:

[0029] Figure 1 This is a three-dimensional perspective structural diagram of a portable hanging sealed explosion-proof powder bag in an embodiment.

[0030] Attached label: 1-Hanging strap; 2-Hanging hole; 3-Bag body; 4-Powder filling port; 5-Protective surface; 6-Tear line; 7-Reinforcing strip; 8-Fixing buckle. Detailed Implementation

[0031] The following specific examples illustrate the implementation of this utility model. Those skilled in the art can easily understand other advantages and effects of this utility model from the content disclosed in this specification. This utility model can also be implemented or applied through other different specific embodiments, and various details in this specification can also be modified or changed based on different viewpoints and applications without departing from the spirit of this utility model. It should be noted that the illustrations provided in the following embodiments are only schematic representations of the basic concept of this utility model. Unless otherwise specified, the following embodiments and features can be combined with each other.

[0032] The accompanying drawings are for illustrative purposes only and are schematic diagrams, not actual pictures. They should not be construed as limiting the present invention. To better illustrate the embodiments of the present invention, some parts in the drawings may be omitted, enlarged, or reduced, and do not represent the actual product dimensions. It is understandable to those skilled in the art that some well-known structures and their descriptions may be omitted in the drawings.

[0033] In the accompanying drawings of this utility model, the same or similar reference numerals correspond to the same or similar components. In the description of this utility model, it should be understood that if terms such as "upper," "lower," "left," "right," "front," and "rear" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, they are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, the terms used to describe positional relationships in the drawings are only for illustrative purposes and should not be construed as limiting this utility model. For those skilled in the art, the specific meaning of the above terms can be understood according to the specific circumstances.

[0034] Example 1: Oval-shaped portable hanging sealed explosion-proof powder bag

[0035] This embodiment provides an oval-shaped, portable, hanging, sealed explosion-proof powder bag, suitable for use in narrow underground coal mine roadways. Figure 1As shown, the explosion-proof powder bag includes a bag body 3 and a hanging strap 1 located at the top of the bag body 3. The bag body 3 has an elliptical design, is made of flame-retardant and antistatic polyester fiber material, is 0.5 meters long, 0.3 meters in diameter, and weighs approximately 31 kilograms. The bag body 3 contains 30 kilograms of explosion-suppressing powder to form an explosion-suppressing barrier in the event of an explosion.

[0036] Structural description:

[0037] Lifting strap and lifting holes: The lifting strap 1 is provided with 3 lifting holes 2, each with a diameter of 3 cm, which are evenly distributed on the lifting strap 1 and are used to suspend the explosion-proof powder bag horizontally on the hook at the top of the underground roadway of the coal mine.

[0038] Powder filling port: The bag body 3 is equipped with a powder filling port 4, located on the horizontal plane of the bag body 3. It adopts a chain design, is 30 cm long, and facilitates the filling and sealing of the explosion-suppressing powder. The powder filling port 4 is opened and closed by a zipper, ensuring simple operation.

[0039] Tear lines: Tear lines 6 are provided on the surface of the bag body 3. The tear lines 6 adopt an intermittent linear design, are 0.45 meters long, and are distributed in the lower part of the bag body 3. When the blast shock wave is applied, the tear lines 6 can tear quickly, causing the explosion suppressant powder to be scattered.

[0040] Protective Surface: The bag body 3 has a protective surface 5 to cover the powder filling port 4 and the tear line 6. The protective surface 5 is rectangular, measuring 48 cm × 20 cm. One side is fixed to the bag body 3 by heat sealing, and the other side is fixed by a fastener 8. The fastener 8 includes a middle fastener, an upper fastener, and a lower fastener. The middle fastener is located at the free end of the protective surface 5, while the upper and lower fasteners are located above and below the powder filling port 4 and the tear line 6 on the bag body 3, respectively. When the middle fastener is connected to the lower fastener, the protective surface 5 covers the powder filling port 4 and the tear line 6, protecting them from damage during transportation or installation. When the middle fastener is connected to the upper fastener, the protective surface 5 is open, exposing the powder filling port 4 and the tear line 6, facilitating powder filling and standby use.

[0041] Ribs: Two ribs 7 are provided on the bag body 3, arranged along the circumference of the bag body 3. Each rib 7 is 2 cm wide and made of high-strength fiber material, which can enhance the tensile strength of the bag body 3 and prevent accidental damage.

[0042] How to use:

[0043] 1. Filling with powder: Separate the middle fixing buckle from the upper fixing buckle of the protective surface 5, open the protective surface 5, and expose the powder filling port 4. Open the powder filling port 4 through the zipper, fill the bag body 3 with 30 kg of explosion suppressant powder, and zip up the powder filling port 4 after filling.

[0044] 2. Secure the protective surface: Cover the powder filling port 4 and tear line 6 with the protective surface 5, and connect the middle fixing buckle with the lower fixing buckle to ensure the sealing and safety of the bag body 3 during transportation or movement.

[0045] 3. Hanging installation: The explosion-proof powder bag is horizontally suspended on the hooks at the top of the underground roadway of the coal mine through the three hanging holes 2 on the hanging belt 1. The hook spacing is about 15 cm to ensure stable suspension.

[0046] 4. Standby setting: Flip up the protective surface 5 so that the middle fixing buckle connects with the upper fixing buckle, exposing the tear line 6, so that the explosion-proof powder bag enters the standby state and is ready to deal with the impact of an explosion.

[0047] 5. Action Response: When a gas and coal dust explosion occurs, the explosion shock wave acts on the bag body 3, the tear line 6 breaks under the impact force, the bag body 3 opens rapidly, and 30 kg of explosion suppressing powder is released inside to form an explosion suppressing barrier and suppress the spread of the explosion flame.

[0048] Example 2: Cylindrical Portable Hanging Sealed Explosion-proof Powder Bag

[0049] This embodiment provides a cylindrical, portable, hanging, sealed explosion-proof powder bag, suitable for use in wide underground coal mine roadways. Figure 1 As shown, the explosion-proof powder bag includes a bag body 3 and a hanging strap 1 located at the top of the bag body 3. The bag body 3 is cylindrical in shape, made of flame-retardant and antistatic polyester fiber material, 0.4 meters long, 0.3 meters in diameter, and weighs approximately 20 kilograms. The bag body 3 contains 12 kilograms of fire extinguishing powder to form an explosion suppression barrier in the event of an explosion.

[0050] Structural description:

[0051] Hanging strap and hanging holes: The hanging strap 1 is provided with 4 hanging holes 2, each with a diameter of 3 cm, which are evenly distributed on the hanging strap 1 and are used to suspend the explosion-proof powder bag horizontally on the hook at the top of the underground roadway of the coal mine.

[0052] Powder filling port: The bag body 3 is equipped with a powder filling port 4, located on the side of the bag body 3. It adopts a chain design, is 20 cm long, and facilitates the filling and sealing of fire extinguishing powder. The powder filling port 4 is opened and closed by a zipper, which is easy to operate and has good sealing performance.

[0053] Tear lines: Tear lines 6 are provided on the surface of the bag body 3. The tear lines 6 adopt an intermittent linear design, are 30 cm long, and are distributed on the lower part of the bag body 3. When the blast shock wave is applied, the tear lines 6 can quickly tear, causing the extinguishing powder to be scattered.

[0054] Protective Surface: The bag body 3 has a protective surface 5 to cover the powder filling opening 4 and the tear line 6. The protective surface 5 is rectangular, measuring 38 cm × 20 cm. One side is fixed to the bag body 3 by sewing, and the other side is fixed by fasteners 8. The fasteners 8 include a middle fastener, an upper fastener, and a lower fastener. The middle fastener is located at the free end of the protective surface 5, while the upper and lower fasteners are located above and below the powder filling opening 4 and the tear line 6 on the bag body 3, respectively. When the middle fastener is connected to the lower fastener, the protective surface 5 covers the powder filling opening 4 and the tear line 6, protecting them from damage during transportation or installation. When the middle fastener is connected to the upper fastener, the protective surface 5 is open, exposing the powder filling opening 4 and the tear line 6, facilitating powder filling and standby use.

[0055] Ribs: The bag body 3 is provided with 3 ribs 7, which are arranged along the circumference of the bag body 3. Each rib 7 is 2 cm wide and is made of high-strength fiber material, which can significantly improve the tensile strength of the bag body 3 and adapt to the loading of larger capacity powder.

[0056] How to use:

[0057] 1. Filling with powder: Separate the middle fixing buckle from the upper fixing buckle of the protective surface 5, open the protective surface 5 to expose the powder filling port 4. Open the powder filling port 4 through the zipper, fill the bag body 3 with 12 kg of fire extinguishing powder, and zip up the powder filling port 4 after filling.

[0058] 2. Secure the protective surface: Cover the powder filling port 4 and tear line 6 with the protective surface 5, and connect the middle fixing buckle with the lower fixing buckle to ensure the sealing and safety of the bag body 3 during transportation or movement.

[0059] 3. Hanging installation: The explosion-proof powder bag is horizontally suspended on the hooks at the top of the underground roadway of the coal mine through the four hanging holes 2 on the hanging belt 1. The hook spacing is about 10 cm to ensure that the suspension is stable.

[0060] 4. Standby setting: Flip up the protective surface 5 so that the middle fixing buckle connects with the upper fixing buckle, exposing the tear line 6, so that the explosion-proof powder bag enters the standby state and is ready to deal with the impact of an explosion.

[0061] 5. Action Response: When a gas and coal dust explosion occurs, the explosion shock wave acts on the bag body 3, the tear line 6 breaks under the impact force, the bag body 3 opens rapidly, and 20 kg of fire extinguishing powder is thrown out to form an explosion suppression barrier and suppress the spread of explosion flames.

[0062] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of this utility model and are not intended to limit it. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solution of this utility model without departing from the spirit and scope of this technical solution, and all such modifications or substitutions should be covered within the scope of the claims of this utility model.

Claims

1. A portable, hanging, sealed, explosion-proof powder bag, characterized in that, It includes a bag body and a hanging strap set on the top of the bag body, and the bag body contains explosion suppressant powder or fire extinguishing powder; The bag is provided with a filling port for loading explosion-suppressing powder or fire-extinguishing powder into the bag, and a tear line for tearing under the action of an explosion shock wave, so as to throw out the explosion-suppressing powder or fire-extinguishing powder from the bag and form an explosion-suppressing barrier.

2. The portable hanging-type sealed explosion-proof powder bag according to claim 1, characterized in that, It also includes a protective surface covering the powder filling port and the tear line, one side of which is attached to the bag body; A central fixing buckle is provided on the protective surface, and an upper fixing buckle and a lower fixing buckle are provided on the bag body, respectively located above and below the powder filling port and the tear line, to form a fixing buckle for fixing the other side of the protective surface; When the middle fixing buckle is connected to the upper fixing buckle, the protective surface opens to expose the powder filling port and the tear line, so as to facilitate the filling and spreading of powder. When the middle fixing buckle is connected to the lower fixing buckle, the protective surface covers the powder filling port and the tear line to protect them.

3. The portable hanging-type sealed explosion-proof powder bag according to claim 2, characterized in that, The bag body is provided with at least one rib arranged in the circumferential direction to improve the tensile strength of the bag body.

4. The portable hanging-type sealed explosion-proof powder bag according to claim 2, characterized in that, The sling is provided with at least one hanging hole for suspending the explosion-proof powder bag on the hook.

5. The portable hanging-type sealed explosion-proof powder bag according to claim 2, characterized in that, The powder filling port adopts a chain design for easy opening and closing.

6. The portable hanging-type sealed explosion-proof powder bag according to claim 2, characterized in that, The tear line adopts an intermittent linear design, which facilitates tearing under the action of an explosive shock wave.

7. The portable hanging-type sealed explosion-proof powder bag according to claim 2, characterized in that, The powder filling port is located on the side or horizontal surface of the bag.

8. The portable hanging-type sealed explosion-proof powder bag according to claim 2, characterized in that, The bag is designed in an elliptical or cylindrical shape and is made of flame-retardant and antistatic material.

9. The portable hanging sealed explosion-proof powder bag according to claim 2, characterized in that, The bag is made of flame-retardant and antistatic polyester fiber material.

10. The portable hanging-type sealed explosion-proof powder bag according to claim 2, characterized in that, One side of the protective surface is fixed to the bag body by heat sealing or sewing to connect it to the bag body.

Images