An individual dust-proof, dehumidifying and temperature-regulating suit for deep-well mining and its usage method

Abstract

The present invention discloses an individual dust-proof, dehumidifying and temperature-adjusting suit for deep-well mining and its usage method, which includes a dust-proof suit (1), a helmet body (4) located at the upper part of the dust-proof suit (1), and a plurality of dust separation components (6) arranged on the helmet body (4) for dust prevention; the helmet body (4) is a double-layer detachable structure inside and outside, and a sealed cavity is formed in the middle; the air output end of each dust separation component (6) is communicated with the cavity, and pipe body components for dust filtration and dehumidification are symmetrically arranged on the left and right in the cavity. The output end of each pipe body component is communicated with an air supply pipe (71) located outside the helmet body (4) through a blower (72), and the other end of the air supply pipe (71) is communicated with a half-face mask (5). The individual dust-proof, dehumidifying and temperature-adjusting suit for deep-well mining and its usage method of the present invention are not only applicable to the high-dust and high-humidity environment in deep wells, reduce the load of the blower, ensure its normal operation under strong load, but also realize the adjustment of the temperature of the dust-proof suit and are applicable to high-temperature environments.

Description

Technical Field

[0001] The present invention relates to the technical field of personal protection, and particularly relates to a personal dust-proof, dehumidifying and temperature-adjusting suit for deep-shaft mines and an applicable method thereof. Background Art

[0002] With the increase of mining depth, deep-seated tectonic coal (rock) bodies are severely broken under the rubbing and extrusion of high ground stress. Coupled with the improvement of mechanized mining level and the increase of excavation and working workload, the dust concentration in deep-shaft excavation working faces is as high as 8000 - 10000 mg / m 3 ; To reduce the dust concentration, wet dust suppression technical measures such as spray dust suppression and water injection into coal and rock layers are mainly adopted in coal mine working faces. Coupled with the leakage of aquifers in the roof and floor of roadways, the air in the excavation working faces is in a high-humidity state (relative humidity RH≥90%). However, due to the hydrophobicity of dust, especially coal dust, it is difficult to achieve ideal results with wet dust removal, and the dust concentration in deep-shaft excavation faces still generally seriously exceeds the standard;

[0003] Therefore, personal dust-proof equipment has become the last and most important line of defense for protecting the respiratory health of miners. The most widely used personal dust-proof products in mines at present are self-priming filter respirators, but their high breathing resistance, low dust capacity, and low protection performance result in poor application effects. Correspondingly, powered air-purifying respirators have the advantages of zero breathing resistance and high protection performance. However, the popularization and application of traditional powered air-purifying respirators in coal mines have the following problems: 1) The air supply hood of traditional powered air-purifying respirators is difficult to match with the safety helmets worn underground in coal mines; 2) The fans, batteries, and filter cartridges of traditional powered air-purifying respirators are usually integrated together and strapped to the waist, and the self-rescuer and miner's lamp batteries are also clipped to the waist, resulting in an excessive load on the miner's waist belt and hindering the normal operation; 3) For high-humidity environments with air humidity≥90%, highly dusty air is extremely likely to form sticky dust cakes, which fill and block the surface of the filter cotton, causing the air resistance of the filter cotton to rise rapidly, and then resulting in a significant increase in the energy consumption of the fan, and the battery is difficult to support the full shift operation; 4) The air supply pipeline from the waist to the head and face of traditional powered air-purifying respirators is relatively long, with large frictional losses along the way, correspondingly increasing energy consumption, and the long and flexible air supply pipe will seriously interfere with the normal operation of miners;

[0004] In addition to dust hazards, as more and more mines have a mining depth exceeding 800 m, the deep-shaft heat hazard caused by the synergistic coupling of heat sources such as high ground temperature, surrounding rock heat dissipation, heat generation of electromechanical equipment, rapid heat release during blasting, and heat generation during air compression in deep-shaft working faces and the high-intensity labor of miners leads to low labor efficiency of workers and heatstroke incidents occur frequently, seriously hindering the healthy and efficient operation of miners and the safe production of coal mines. Summary of the Invention

[0005] The purpose of the present invention is to provide an individual dust-proof, dehumidifying and temperature-regulating suit for deep-well mining, which is not only applicable to the high-dust and high-humidity environment in deep wells, reduces the load of the fan, and ensures the normal operation under strong load without affecting the breathing of the operators, but also realizes the adjustment of the temperature of the dust-proof suit and is applicable to high-temperature environments.

[0006] To achieve the above object, an individual dust-proof, dehumidifying and temperature-regulating suit for deep-well mining includes a dust-proof suit, a helmet main body located above the dust-proof suit, and a plurality of dust separation components arranged on the helmet main body for dust prevention;

[0007] The helmet main body is a double-layer detachable structure inside and outside, and a sealed cavity is formed in the middle;

[0008] The air output end of each dust separation component is communicated with the cavity. Tube body components for dust filtration and dehumidification are symmetrically arranged on the left and right in the cavity. The output end of each tube body component is communicated with an air supply pipe located outside the helmet main body through a fan, and the other end of the air supply pipe is communicated with a half mask.

[0009] Further, the dust separation component includes a separation cylinder body and an exhaust pipe;

[0010] The separation cylinder body is an inverted conical structure, with an air inlet arranged tangentially to its inner wall at the upper part, and the upper end is communicated with the cavity through the exhaust pipe;

[0011] One end of the exhaust pipe extends into the separation cylinder body and is located below the air inlet, and a metal filter screen is arranged at the position where the other end is communicated with the cavity;

[0012] Dust discharge components for automatically discharging the accumulated dust are arranged at the lower end of the separation cylinder body and near the metal filter screen of the exhaust pipe.

[0013] Further, the dust discharge component includes a dust discharge chamber with its upper end communicated with the separation cylinder body or the exhaust pipe, and a dust discharge plate rotatably arranged in the middle of the dust discharge chamber with a bias;

[0014] The lower end of the dust discharge chamber is provided with a small-diameter dust outlet for ventilation and dust discharge;

[0015] A counterweight block is arranged at the lighter end of the dust discharge plate, so that the heavier end of the dust discharge plate deflects to separate the upper and lower parts of the dust discharge chamber cylinder body.

[0016] Further, each tube body component includes a dehumidifying tube;

[0017] The dehumidifying tube is a tube body composed of an outer layer of dust-filtering and moisture-absorbing filter material and an inner layer of electret fiber filter material;

[0018] One end of the dehumidifying tube is closed, and the other end is connected to the input end of the fan through an air extraction pipe.

[0019] Further, a plurality of dehumidifying tubes are arranged side by side vertically, and the axis of each dehumidifying tube is consistent with the contour of the helmet body;

[0020] The air extraction pipe is in a claw shape, its main pipe is connected to the input end of the fan, and the branch pipes are detachably connected to the dehumidifying tubes through bayonet connections.

[0021] Further, the upper collar of the dust-proof suit is hermetically connected to the inner layer of the helmet body and the lower end of the half mask;

[0022] A one-way exhaust valve is provided at the lower end of the half mask, and the outlet of the exhaust valve faces the inside of the dust-proof suit.

[0023] Further, a lamp holder for mounting a miner's lamp is provided in the middle of the front end of the helmet body, and a charging hole connected to the lithium battery box is provided at the rear end;

[0024] Both the lithium battery box and the fan are located in the cavity, and the lithium battery box provides power for the fan.

[0025] Further, the dust-proof suit is a full-body one-piece structure, with a zipper at the front, protective gloves hermetically provided at the cuffs, and waterproof boots hermetically provided at the trouser legs;

[0026] The dust-proof suit is a three-layer structure of outer, middle and inner layers. The inner layer is made of cotton knitted fabric, the middle layer is a phase change material layer, and the outer layer is twill fabric.

[0027] Further, annular pipelines arranged side by side vertically are provided at the chest of the dust-proof suit. One end of the pipeline is sealed, the other end is provided with an opening valve, and a phase change material is provided inside;

[0028] The phase change material is an ice sand gel mixture.

[0029] A usage method for an individual dust-proof, dehumidifying and temperature-regulating suit for deep well mining specifically includes the following steps:

[0030] A. Before use, the individual dust-proof, dehumidifying and temperature-regulating suit for deep well mining needs to be hung on the hanger in a constant temperature room with a room temperature of 20 °C, so that the phase change material in the middle layer of the dust-proof suit becomes solid, and the charging hole provided at the rear of the helmet body charges the lithium battery box to a full charge state;

[0031] B. When wearing, the front zipper of the dust-proof suit is opened, the operator puts on the dust-proof suit in a back-in manner, puts both hands into the corresponding protective gloves, puts feet into the corresponding waterproof boots, zips up, and wears the helmet body to cover the mouth and nose with the half mask;

[0032] C. Start the fans on the left and right sides of the helmet body. The outside dust-containing air tangentially enters from the air inlet on the separation cylinder body and flows downward along the inner wall of the inverted cone. During the swirling process, under the action of centrifugal force, dust particles with an aerodynamic diameter ≥ 10 μm continuously collide with the peripheral wall of the separation cylinder body and deposit in the corresponding dust discharge compartment, completing the primary purification.

[0033] The dust removal plate in the middle of the dust removal chamber deflects as dust accumulates, causing the dust to fall and be discharged from the dust outlet at the lower end of the dust removal chamber. The air pressure in the dust removal chamber and the exhaust pipe is constant. When the dust particles on the dust removal plate are removed, the gravity decreases, and the counterweight resets the dust removal plate. The dust outlet at the lower end of the dust removal chamber balances the air pressure in the dust removal chamber with the outside world;

[0034] The remaining air swirls to the lower end of the separation cylinder and then starts to swirl and rise, and enters the arc-shaped exhaust pipe under the negative pressure of the fan;

[0035] D. The air in the exhaust pipe undergoes secondary purification through a metal filter screen. Dust particles with an aerodynamic diameter ≥ 5μm are captured, blocked outside the metal filter screen, and deposited in the corresponding dust removal chamber. The dust removal plate in the middle of the dust removal chamber deflects as dust accumulates, causing the dust to fall and be discharged from the lower dust outlet;

[0036] The air passing through the metal filter screen enters the middle cavity of the helmet body;

[0037] E. The air purified in the cavity first undergoes tertiary dust prevention purification treatment and single-stage moisture absorption treatment through the outer layer of the dehumidification tube's dust filtering and moisture absorbing filter material. During this process, dust particles with an aerodynamic diameter ≥ 2.5μm are filtered out, and high-humidity air with a relative humidity ≥ 90% is absorbed to a relative humidity range of 45% - 65%;

[0038] Then, the air passes through the inner layer of the electret fiber filter material of the dehumidification tube for quaternary dust filtering treatment to completely filter out dust particles with an aerodynamic diameter ≤ 2.5μm;

[0039] F. The air purified through four levels passes through the claw-shaped suction pipe for aggregation, and then enters the air inlets on the left and right sides of the half mask through the fan and the air supply pipe in sequence, and finally enters the viscoelastic compound half mask to supply the operator with breathing air;

[0040] The redundant clean air flow in the half mask continuously enters the internal space between the inner layer of the dust-proof clothing and the skin through the one-way exhaust valve at the lower part of the half mask;

[0041] G. When the human body is in a high-temperature environment, the phase change material absorbs the heat of the human body to reach the phase change temperature and gradually undergoes a phase change. The human body temperature slowly drops and remains at 26°C;

[0042] After use, regularly remove the outer layer of the helmet body, and remove and replace the dehumidification cylinder through the buckle on the claw-shaped suction pipe.

[0043] Compared with the prior art, the present individual dust-proof, dehumidifying and temperature-adjusting suit for deep shaft mines has the following advantages:

[0044] (1) Since the air output ends of multiple dust separation components communicate with the cavity of the helmet body, and the output ends of the pipe body components for dust filtration and dehumidification arranged symmetrically on the left and right are connected to the air supply pipe located outside the helmet body through a blower, the outside dusty air first tangentially enters from the air inlet on the separation cylinder body, swirls downward along the inner wall of the inverted cone and continuously collides with the peripheral wall of the separation cylinder body and deposits in the dust removal component to complete the primary purification. Then it is captured and blocked by the metal filter screen to complete the secondary purification. Then it undergoes a three-level dust prevention purification treatment and a single-level moisture absorption treatment from the outer layer of the dust and moisture filtration absorbent material of the dehumidification pipe, and then undergoes a four-level dust filtration treatment from the inner layer of the electret fiber filter material of the dehumidification pipe. Finally, it is transmitted to the half mask through the blower. Therefore, multi-level purification and dehumidification treatment of dust are realized, which is applicable to the high-dust and high-humidity environment in deep mines;

[0045] (2) Since dust removal components for automatically discharging the accumulated dust are provided at the lower end of the separation cylinder body and near the metal filter screen of the exhaust pipe, the dust enters the interior of the dust removal chamber and accumulates and collects at the upper end of the dust removal plate. Through the rotation setting of the weighted dust removal plate, when the dust accumulates to a certain weight, the dust removal plate deflects to drop the dust and discharge it from the dust removal chamber. Then, under the action of the counterweight, the dust removal plate lies flat to seal the interior of the dust removal chamber. Therefore, the automatic discharge of the accumulated dust is realized without using power, avoiding the accumulation of dust, and the structure is compact and flexible;

[0046] (3) Since the dust-proof suit is a full-body one-piece structure, protective gloves are hermetically provided at the cuffs, and waterproof boots are hermetically provided at the trouser legs, and the dust-proof suit has an outer, middle, and inner three-layer structure, with the inner layer being a cotton knitted fabric, the middle layer being a phase change material layer, and the outer layer being a twill fabric. Therefore, not only the components are hermetically connected to achieve integrated wearing and ensure the protection of the hands and feet, but also the dust-proof suit blocks the convective heat transfer of the outside high-temperature air to the inside of the clothing, ensuring that it has a good cooling effect and is effectively applied to the high-temperature operation environment in deep mines;

[0047] (4) Since the collar of the upper part of the dust-proof suit is hermetically connected to the helmet body and the lower edge of the half mask, and the one-way exhaust valve provided at the lower part of the half mask is wrapped inside, the redundant clean air flow in the half mask enters the internal space between the skin-friendly breathable fabric layer and the skin, accelerating the air flow on the body surface, and can promote the absorption of human body heat by the phase change material on the dust-proof suit. At the same time, it plays a buffering role between the phase change material and the human skin, preventing the human body from feeling cold and uncomfortable;

[0048] (5) In the present invention, since the cavity is symmetrically provided with tube body assemblies for filtering dust and dehumidifying, each tube body assembly is connected through the negative pressure of the fan. Therefore, a pair of fans working independently can supply air to the half mask, which can halve the air volume in the air supply pipe and reduce the wind resistance along the way by at least half, avoiding the high air volume and high energy consumption of a single fan. In addition, the lithium battery box, the dust separation assembly, a pair of fans working independently in parallel, and the tube body assembly are wirelessly integrated on the helmet body to solve the problem of mismatch between traditional fans, lithium battery boxes, mining lamps and other underground supplies such as self-rescuers, and reduce the defects of large losses along the way, high energy consumption and interference with operations caused by the use of long pipelines. BRIEF DESCRIPTION OF THE DRAWINGS

[0049] Figure 1 It is an overall schematic diagram of the present invention;

[0050] Figure 2 This is a left side view of the helmet body of the present invention (ignoring the dust separation component);

[0051] Figure 3 This is a front view of the helmet body of the present invention;

[0052] Figure 4 is a cross-sectional view of the interior of the helmet body of the present invention;

[0053] Figure 5 is a schematic diagram of the dust separation assembly of the present invention;

[0054] Figure 6 This is a front view of the dust separation assembly of the present invention;

[0055] Figure 7 Schematic diagram of the arrangement of phase change materials in the dustproof clothing of the present invention;

[0056] Figure 8 This is a schematic diagram of the working heat flow of the dustproof clothing of the present invention;

[0057] Figure: 1. Dust-proof suit, 11. Zipper, 12. Phase change material, 13. Pipeline, 14. Opening valve; 2. Protective gloves, 3. Waterproof boots, 4. Helmet body, 41. Charging port, 42. Lamp holder, 43. Air intake, 44. Lithium battery box;

[0058] 5. Half mask, 51. Exhaust valve, 6. Dust separation assembly, 61. Separation cylinder, 62. Air inlet, 63. Exhaust pipe, 64. Dust exhaust assembly, 641. Dust exhaust chamber, 642. Dust exhaust plate, 643. Counterweight, 644. Dust outlet, 65. Metal filter;

[0059] 71. Air supply pipe, 72. Fan, 73. Exhaust pipe, 74. Dehumidification pipe, 75. Support base. DETAILED DESCRIPTION

[0060] The following clearly and completely describes the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts belong to the scope of protection of the present invention.

[0061] As Figures 1 to 4 shown, a personal dust-proof, dehumidifying and temperature-regulating suit for deep-shaft mines includes a dust-proof suit 1, a helmet body 4 located above the dust-proof suit 1, and a plurality of dust separation components 6 provided on the helmet body 4 for dust prevention.

[0062] The helmet body 4 has a double-layer detachable structure inside and outside, and a sealed cavity is formed in the middle.

[0063] The air output end of each dust separation component 6 is communicated with the cavity. Inside the cavity, tube body components for dust filtration and dehumidification are symmetrically arranged on the left and right. The output end of each tube body component is communicated with an air supply pipe 71 located outside the helmet body 4 through a fan 72, and the other end of the air supply pipe 71 is communicated with a half mask 5.

[0064] Specifically, the inner and outer layers of the helmet body 4 are both shells made of ABS resin. This structure can not only provide double protection for the head but also build a well-sealed intermediate layer cavity.

[0065] On both the left and right sides of the helmet body 4, air inlet holes 43 communicated with the cavity are arranged side by side. A dust separation component 6 is correspondingly installed on each air inlet hole 43. The dust separation component 6 performs multiple dust prevention treatments on the underground environment and introduces air into the cavity of the helmet body 4. Therefore, without affecting dust prevention, the air intake amount is effectively increased, which is suitable for miners to work under load.

[0066] Since the output end of each tube body component is communicated with the air supply pipe 71 located outside the helmet body 4 through a fan 72, that is, a pair of fans 72 work independently to supply air to the half mask 5, avoiding the high air volume and high energy consumption of a single fan 72. This solution can halve the air volume in the air supply pipe 71 and thus reduce the along-way air resistance by at least half. And on the premise of ensuring an air supply volume of 120 L / min, the power of the fan 72 can be reduced by more than half, and the power of a single fan 72 is as low as below 5 W, meeting the requirements of coal mine safety explosion-proof technology.

[0067] In addition, a plurality of dust separation components 6 communicated with the cavity are provided, and tube body components are symmetrically arranged on the left and right inside the cavity. Compared with traditional power-driven air supply respirators, the effective filtration area is increased by more than 2 times, the filter material resistance is reduced to 1 / 4, the filtration efficiency is improved, the increase in the dust loading amount of the filter material is delayed, the energy consumption of the fan 72 is reduced, and the service life of the filter material and the available time of the battery are prolonged.

[0068] AsFigure 5 , Figure 6 As shown in Figure 6 , exemplarily, the dust separation assembly 6 includes a separation cylinder body 61 and an exhaust pipe 63;

[0069] The separation cylinder body 61 is of an inverted conical structure, with an air inlet 62 arranged tangentially to its inner wall at the upper part, and the upper end is communicated with the cavity through the exhaust pipe 63;

[0070] One end of the exhaust pipe 63 extends into the separation cylinder body 61 and is located below the air inlet 62, and a metal filter screen 65 is provided at the position where the other end is communicated with the cavity;

[0071] Dust discharging assemblies 64 are provided at the lower end of the separation cylinder body 61 and near the metal filter screen 65 of the exhaust pipe 63 for automatically discharging the accumulated dust;

[0072] Specifically: The exhaust pipe 63 in the dust separation assembly 6 is connected to the air inlet hole 43, and the metal filter screen 65 can be located at the air inlet hole 43; The dust-containing air undergoes primary and secondary dust prevention treatments through the dust separation assembly 6, that is, the dust-containing air tangentially enters the separation cylinder body 61 of the inverted cone structure from the air inlet 62, flows downward in a spiral manner on its inner wall, and under the action of centrifugal force, part of the dust collides with each other, deposits and is automatically discharged through the dust discharging assembly 64 to achieve the primary dust prevention treatment of the air. The gas after the primary dust prevention treatment and other dust-containing air enter the cavity of the helmet main body 4 through the exhaust pipe 63, and secondary dust blocking treatment is carried out when passing through the metal filter screen 65, and the blocked dust is automatically discharged through the dust discharging assembly 64; One end of the exhaust pipe 63 is lower than the lower part of the air inlet 62, effectively preventing the dust-containing gas from directly entering the exhaust pipe 63 without fully flowing downward in a spiral manner;

[0073] Preferably, the dust discharging assembly 64 includes a dust discharging chamber 641 with its upper end communicated with the separation cylinder body 61 or the exhaust pipe 63, and a dust discharging plate 642 rotatably arranged in the middle of the dust discharging chamber 641 with a bias;

[0074] The lower end of the dust discharging chamber 641 is provided with a small-diameter dust outlet 644 for ventilation and dust discharging;

[0075] A counterweight 643 is provided at the lighter end of the dust discharging plate 642, so that the heavier end of the dust discharging plate 642 deflects to seal and separate the upper and lower parts of the cylinder body of the dust discharging chamber 641;

[0076] Specifically, the upper end of the dust exhaust chamber 641 communicates with the separation cylinder 61 or the exhaust pipe 63 accordingly, and the lower end is provided with a dust outlet 644. Taking the operation of the dust exhaust assembly 64 on the separation cylinder 61 as an example: In the initial state, the dust exhaust plate 642 is installed with a bias in the middle of the dust exhaust chamber 641, that is, the lighter end can be located outside the dust exhaust chamber 641 and is provided with a counterweight 643. Under the action of the counterweight 643, the heavier end separates the upper and lower parts inside the dust exhaust chamber 641. For example, a limiting ring can be provided inside the dust exhaust chamber 641, and the heavier end of the dust exhaust plate 642 abuts against the limiting ring for limiting, so that the dust exhaust plate 642 is in a horizontal state, keeping the inside of the dust exhaust chamber 641 closed without affecting the downward deflection of the heavier end of the dust exhaust plate 642.

[0077] Dust enters the inside of the dust exhaust chamber 641 after swirling and depositing from the separation cylinder 61 or being blocked by the metal filter screen 65, and accumulates and collects at the upper end of the dust exhaust plate 642. When the dust accumulates to a certain weight, the dust exhaust plate 642 deflects to drop the dust to the lower part of the dust exhaust chamber 641. The small-diameter dust outlet 644 at the lower end of the dust exhaust chamber 641 can ensure a small air flow rate. That is, when the dust particles are discharged to the lower part, the air pressure in the dust exhaust chamber 641 is constant with the air pressure in the exhaust pipe 63. After the dust particles on the dust exhaust plate 642 are removed, the gravity decreases, and the counterweight 643 resets the dust exhaust plate 642 again. The dust outlet 644 effectively ensures the balance of the air pressure inside the dust exhaust chamber 641 and the outside world. Therefore, the dust exhaust assembly has a compact structure and can realize the automatic cyclic discharge of the accumulated dust without using power, avoiding the accumulation of dust.

[0078] Similarly, a dust exhaust assembly 64 with the same structure is also provided at the position where the exhaust pipe 63 is close to the metal filter screen 65. When the dust is blocked by the metal filter screen 65, it falls into the dust exhaust chamber 641 and accumulates and collects at the upper end of the dust exhaust plate 642, and the automatic discharge of the accumulated dust is realized through the deflection of the dust exhaust plate 642.

[0079] In addition, to facilitate the flow of dust and avoid its accumulation in the exhaust pipe 65, the exhaust pipe 63 is of an arc structure.

[0080] As Figure 4 shown, exemplarily, each pipe body assembly includes a dehumidification pipe 74.

[0081] The dehumidification pipe 74 is a pipe body composed of an outer layer of dust-filtering and moisture-absorbing filter material and an inner layer of electret fiber filter material.

[0082] One end of the dehumidification pipe 74 is closed, and the other end is connected to the input end of the fan 72 through an exhaust pipe 73.

[0083] Furthermore, a plurality of dehumidification pipes 74 are arranged side by side up and down, and the axis of each dehumidification pipe 74 is consistent with the contour of the helmet body 4.

[0084] The air extraction pipe 73 is in a claw shape, its main pipe is connected to the input end of the fan 72, and the branch pipe is detachably connected to the dehumidification pipe 74 through a bayonet connection;

[0085] Specifically, the air extraction pipe 73 can be installed and fixed through the support seat 75; when the fan 72 is started to generate negative pressure, the dust-containing air in the cavity of the helmet main body 4 passes through the dehumidification pipe 74 for dust filtration and dehumidification, and then enters the air supply pipe 71 through the air extraction pipe 73 and the fan 72; that is, after the fan 72 generates negative pressure, the dust-containing air in the cavity undergoes three-stage dust-proof purification treatment and single-stage moisture absorption treatment through the outer layer of the dust filtration and moisture absorption filter material, and then undergoes four-stage dust filtration treatment through the inner layer of the electret fiber filter material. Finally, the purified air enters the air supply pipe 71 through the air extraction pipe 73 and the fan 72.

[0086] Such as Figure 2 shown, preferably, the air supply pipe 71 is in an L-shaped bending structure or an F-shaped structure. One end of the bending is connected to the output end of the fan 72, and the other end is connected to the half mask 5. When it is in an F-shaped structure, the other bending end is connected to the helmet main body 4, playing a good supporting role;

[0087] In addition, there are multiple dehumidification pipes 74 arranged side by side up and down. The adjacent dehumidification pipes 74 are connected in parallel and then aggregated and connected to the fan 72, effectively increasing the dust treatment and air flow of the dehumidification pipe 74.

[0088] Such as Figure 1 shown, exemplarily, the upper collar of the dust-proof clothing 1 is hermetically connected to the inner layer of the helmet main body 4 and the lower end of the half mask 5;

[0089] A one-way exhaust valve 51 is provided at the lower end of the half mask 5, and the outlet of the exhaust valve 51 faces the inside of the dust-proof clothing 1;

[0090] Specifically, the half mask 5 is a viscoelastic compound half mask 5 and is worn at the mouth and nose of a person. At this time, the long ends of a pair of L-shaped air supply pipes 71 are correspondingly connected to the air inlets on the left and right sides of the viscoelastic compound half mask 5. The upper collar of the dust-proof clothing 1 is hermetically connected to the helmet main body 4 and the lower edge of the viscoelastic silicone half mask 5, and the one-way exhaust valve 51 provided at the lower part of the viscoelastic silicone half mask 5 is wrapped inside, so that the redundant clean air flow in the half mask 5 flows into the internal space between the skin-friendly breathable fabric layer and the skin, accelerating the air flow on the body surface, and promoting the absorption of the body heat by the phase change material 12 on the dust-proof clothing 1. At the same time, it plays a buffering role between the phase change material 12 and the human skin, preventing the human body from feeling cold and uncomfortable.

[0091] Such as Figure 2 、 Figure 3 shown, exemplarily, a lamp holder 42 for mounting a miner's lamp is provided in the middle of the front end of the helmet main body 4, and a charging hole 41 connected to the lithium battery box 44 is provided at the rear end;

[0092] Both the lithium battery box 44 and the fan 72 are located within the cavity, and the lithium battery box 44 supplies power to the fan 72;

[0093] Specifically, this device wirelessly integrates the lithium battery box 44, the dust separation component 6, a pair of independently and parallely operating fans 72, and the pipe body component onto the helmet main body 4, overcoming the contradiction that the air supply hood of traditional powered air-purifying respirators is difficult to be compatible with safety helmets, solving the problem that traditional fans 72, lithium battery boxes 44, miner's lamps, self-rescuers and other underground mining supplies do not match, and reducing the defects of large frictional losses, high energy consumption and interference with operations caused by the use of long pipelines 13.

[0094] Such as Figure 1 、 Figure 7 、 Figure 8 As shown, exemplarily, the dust-proof suit 1 is a full-body one-piece structure, with a zipper 11 provided at the front, protective gloves 2 hermetically provided at the cuffs, and waterproof boots 3 hermetically provided at the trouser legs;

[0095] The dust-proof suit 1 is a three-layer structure of outer, middle and inner layers. The inner layer is made of cotton knitted fabric, the middle layer is a phase change material layer, and the outer layer is twill fabric;

[0096] Specifically, the outer layer of the dust-proof suit 1 uses twill fabric containing conductive fibers with heat insulation and anti-static functions, such as 80% cotton and 20% polyester. The selected fabric can not only block the convective heat transfer of the outside high-temperature air to the inside of the clothing, extending the action time of the phase change material 12, but also effectively prevent the dust from diffusing, migrating and leaking into the clothing; the inner layer is a cotton knitted fabric with good air permeability and moisture absorption, making the human body more comfortable to wear;

[0097] The middle layer is a slush gel mixed phase change material 12. The slush is sodium sulfate decahydrate (Na2SO4·10H2O), carboxymethyl cellulose, crystal control agent and water; the gel includes high molecular substances (glycerol), plant extracts and water. The phase change temperature of this phase change material 12 is 32°C, close to the human body temperature, and has the advantages of high latent heat, low cost, recyclability and good stability, etc.; among them, the slush has the advantages of high phase change latent heat, non-flammability and low cost, and the gel can quickly conduct heat, thus achieving the effect of reducing temperature. The slush mixed gel has a good cooling effect, taking into account the advantages of the slush phase change heat absorption and the high heat transfer of the gel, ensuring the smooth export of the heat accumulated in the slush; the inner layer is a skin-friendly and breathable fabric layer. The selected fabric has good air permeability, light weight and skin-friendliness. It can transfer the heat dissipated by the human body without obstruction, and is also light and comfortable, and the temperature-regulating dust-proof suit 1 has low cost, is portable, comfortable to wear, and the phase change material 12 can be replaced at any time, greatly extending the cooling effect of the temperature-regulating dust-proof suit 1.

[0098] As a method, square pockets for encapsulating the phase change material 12 are provided on the front chest, abdomen, scapula and front side of the thighs of the dust-proof suit 1, and the interval between adjacent pockets is 2-5 mm;

[0099] Specifically, pockets are provided on the front chest, abdomen, scapula, and front side of the thighs of the dust-proof suit 1. Using the macroscopic phase change material 12 encapsulation method, a TPU film with good thermal conductivity is used to encapsulate the phase change material 12 into square small packets several centimeters wide to increase the contact surface with the human body; the interval between the phase change material 12 packets is preferably 4 mm, and this gap amount is optimal for the thermal protection and moisture transfer of the temperature-regulating dust-proof suit 1;

[0100] Such as Figure 7 As shown, as another method, annular pipelines 13 arranged side by side up and down are provided at the chest of the dust-proof suit 1. One end of the pipeline 13 is sealed, the other end is provided with an opening valve 14, and the phase change material 12 is provided inside;

[0101] Specifically, the phase change material 12 is filled in the annular pipeline 13, and there is no obvious sense of weight on the human body when wearing, avoiding the leakage and noise problems of the traditional electrically charged fan temperature-regulating dust-proof suit 1. The pipeline 13 is made of a material with light weight, anti-static, high flexibility, high strength, and medium thermal conductivity, which can not only effectively prevent the leakage of the solution, be gentle and interference-free for daily operations, but also stably absorb the heat continuously emitted by the human body during high-intensity operations at a certain rate. The multiple annular pipelines 13 arranged side by side up and down further increase the contact area between the phase change material 12 and the human body surface.

[0102] When the human body is in a high-temperature environment, the phase change material 12 will absorb the heat of the human body to reach the phase change temperature and gradually undergo a phase change. The human body temperature will slowly drop to 26 °C and remain at about 26 °C all the time. This temperature belongs to a relatively comfortable body feeling temperature for the human body. The phase change material 12 in the temperature-regulating dust-proof suit 1 is used to absorb the heat emitted by the human body, thereby greatly enhancing the thermal comfort of the human body.

[0103] For this individual dust-proof, dehumidifying and temperature-regulating suit for deep well mining, all components are hermetically connected, and it can be worn integrally, with multiple occupational hazard protection functions such as head protection, dust prevention, dehumidification, temperature regulation, and hand and foot protection. It can achieve low-energy consumption air supply and zero-energy consumption temperature regulation, and can be preferably applied to high-intensity full-shift operations in high-temperature, high-humidity, and high-dust environments in deep wells. In addition, the helmet main body 4 can be made of high-strength and light-quality materials, and the dust separation component 6 and the dust exhaust component 64 can both use plastic materials to reduce the weight of the helmet main body 4 and facilitate personnel to carry;

[0104] Before using this individual dust-proof, dehumidifying and temperature-regulating suit for deep well mining, it specifically includes the following steps:

[0105] Before use, the individual dust-proof and dehumidifying adjustment suit for deep-well mining needs to be hung on the hanger in a constant-temperature room with a room temperature of 15 - 25°C, preferably on the hanger in a 20°C constant-temperature room. The ventilation in the constant-temperature room is smooth. During the break periods between the two work shifts of the operator, the phase-change material 12 in the middle layer of the dust-proof clothing 1 can be changed into a solid state, and at the same time, the explosion-proof lithium battery box 44 is fully charged through the charging hole 41 left at the rear of the helmet main body 4;

[0106] When wearing, the front zipper 11 of the dust-proof clothing 1 is opened. The operator gets into the dust-proof clothing 1 in a back-in manner, puts both hands into the corresponding protective gloves 2, puts feet into the corresponding waterproof boots 3, zips up the zipper 11, and wears the helmet main body 4 to cover the nose and mouth with the half-mask 5;

[0107] Start the blowers 72 on both sides of the helmet main body. The outside dusty air first enters the dust separation component 6 for multi-stage dust removal, then enters the cavity of the helmet main body 4, undergoes multi-stage dust removal and dehumidification through the pipe body component, and then the purified air is transported into the half-mask 5 through the blower 72 and the air supply pipe 71. Specifically:

[0108] The outside dusty air tangentially enters from the air inlet 62 on the separation cylinder body 61 and swirls downward along the inner wall of the inverted cone. During the swirling process, under the action of centrifugal force, dust particles with an aerodynamic diameter ≥ 10μm continuously collide with the peripheral wall of the separation cylinder body 61 and are deposited on the dust removal group to complete the primary purification. The dust removal plate 642 in the dust removal chamber 641 deflects due to the gravity of the deposited dust and discharges it. The remaining air swirls upward after reaching the lower end of the separation cylinder body 61 and enters the arc-shaped exhaust pipe 63 under the negative pressure of the blower 72;

[0109] The dust separation component 6 is in multiple groups. Preferably, it is evenly arranged on both sides of the helmet main body 4. The air in the exhaust pipe 63 enters the middle cavity of the helmet main body 4 through the metal filter screen 65, that is, secondary purification is carried out through the metal filter screen 65. Dust particles with an aerodynamic diameter ≥ 5μm are captured and blocked outside the metal filter screen 65 and deposited on the dust removal component 64 on the exhaust pipe 63. The corresponding dust removal plate 642 deflects due to the gravity of the deposited dust and discharges it;

[0110] Under the negative pressure of the blower 72, the air after secondary purification in the cavity first undergoes tertiary dust-proof purification treatment and single-stage moisture absorption treatment through the outer layer of the dust and moisture absorption filter material of the dehumidification pipe 74. Dust particles with an aerodynamic diameter ≥ 2.5μm are filtered out, and the high-humidity air with a relative humidity ≥ 90% is absorbed to a relative humidity range of 45% - 65%, which is the most suitable and comfortable for the human body;

[0111] Then, the air passes through the inner layer of the electret fiber filter material of the dehumidification pipe 74 for quaternary dust filtration to completely filter out dust particles with an aerodynamic diameter ≤ 2.5μm;

[0112] There are a pair of pipe body components, which are correspondingly connected to the air supply pipe 71 through the fan 72. Therefore, the air purified through four levels is collected through the suction pipe 73 with a claw-shaped structure, and then enters the air inlets on the left and right sides of the half mask 5 through the fan 72 and the air supply pipe 71 in sequence, and finally enters the viscoelastic double-layer half mask 5 to supply the operator with breathing air;

[0113] The redundant clean air flow in the half mask 5 continuously enters the internal space between the inner layer of the dust-proof suit 1 and the skin through the one-way exhaust valve 51 at the lower part of the half mask 5;

[0114] When the human body is in a high-temperature environment, the phase-change material 12 will absorb the heat of the human body to reach the phase-change temperature and gradually undergo a phase change. The body temperature slowly drops to 26°C and remains at about 26°C. This temperature belongs to a relatively comfortable body feeling temperature for the human body. The phase-change material 12 in the temperature-regulating dust-proof suit 1 absorbs the heat dissipated by the human body, thereby greatly enhancing the thermal comfort of the human body.

[0115] After use, regularly remove the outer layer of the helmet main body 4, remove the dehumidification cylinder through the buckle on the claw-shaped suction pipe 73 and replace it; The usage method of this deep-well mine individual dust-proof, dehumidifying and temperature-regulating suit is simple, enabling the operator to be applicable to the high-dust and high-humidity environment in the deep well, avoiding breathing dust, and ensuring its normal operation under strong load.

[0116] In the description of the present invention, it should be understood that the orientation or positional relationship indicated by the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present invention.

Claims

1. An individual dust-proof, dehumidifying and temperature-regulating suit for deep-shaft mines, characterized in that, It includes a dust-proof suit (1), a helmet main body (4) located at the upper part of the dust-proof suit (1), and a plurality of dust separation components (6) provided on the helmet main body (4) for dust prevention; The helmet main body (4) has a double-layer detachable structure inside and outside, and a sealed cavity is formed in the middle; The air output end of each dust separation component (6) is communicated with the cavity. Inside the cavity, tube body components for dust filtration and dehumidification are symmetrically arranged on the left and right. The output end of each tube body component is communicated with an air supply pipe (71) located outside the helmet main body (4) through a blower (72), and the other end of the air supply pipe (71) is communicated with a half mask (5); The dust separation component (6) includes a separation cylinder body (61) and an exhaust pipe (63); The separation cylinder body (61) has an inverted conical structure, an air inlet (62) tangentially arranged with its inner wall is provided at the upper part, and the upper end is communicated with the cavity through the exhaust pipe (63); One end of the exhaust pipe (63) extends into the separation cylinder body (61) and is located below the air inlet (62), and a metal filter screen (65) is provided at the position where the other end is communicated with the cavity; A dust discharge component (64) for automatically discharging the accumulated dust is provided at the lower end of the separation cylinder body (61) and near the metal filter screen (65) of the exhaust pipe (63); Each tube body component includes a dehumidification tube (74); The dehumidification tube (74) is a tube body composed of an outer layer of dust-filtering and moisture-absorbing filter material and an inner layer of electret fiber filter material; One end of the dehumidification tube (74) is closed, and the other end is connected to the input end of the blower (72) through an air extraction pipe (73); A plurality of dehumidification tubes (74) are arranged side by side up and down, and the axis of each dehumidification tube (74) is consistent with the contour of the helmet main body (4); The air extraction pipe (73) has a claw-shaped structure, its main pipe is connected to the input end of the blower (72), and the branch pipes are detachably connected to the dehumidification tubes (74) through bayonets.

2. The individual dust-proof, dehumidifying and temperature-regulating suit for deep-shaft mines according to claim 1, wherein, The dust discharge component (64) includes a dust discharge chamber (641) with its upper end communicated with the separation cylinder body (61) or the exhaust pipe (63), and a dust discharge plate (642) rotatably arranged in the middle of the dust discharge chamber (641) with a bias; A dust outlet (644) with a small diameter for ventilation and dust discharge is provided at the lower end of the dust discharge chamber (641); A counterweight block (643) is provided at the lighter end of the dust discharge plate (642), so that the heavier end of the dust discharge plate (642) deflects to seal and separate the upper and lower parts of the cylinder body of the dust discharge chamber (641).

3. The personal dust-proof, dehumidifying and temperature-regulating suit for deep-shaft mines according to claim 1 or 2, characterized in that, The upper collar of the dust-proof suit (1) is hermetically connected to the inner layer of the helmet main body (4) and the lower end of the half mask (5); A one-way exhaust valve (51) is provided at the lower end of the half mask (5), and the outlet of the exhaust valve (51) faces the inside of the dust-proof suit (1).

4. The individual dust-proof, dehumidifying and temperature-regulating suit for deep shaft mining according to claim 3, characterized in that A lamp holder (42) for mounting a miner's lamp is provided in the middle of the front end of the helmet main body (4), and a charging hole (41) connected to a lithium battery box (44) is provided at the rear end; The lithium battery box (44) and the blower (72) are both located in the cavity, and the lithium battery box (44) provides power for the blower (72).

5. The personal dust-proof, dehumidifying and temperature-regulating suit for deep-well mining according to claim 3, characterized in that, The dust-proof suit (1) has a full-body one-piece structure, a zipper (11) is provided at the front, protective gloves (2) are hermetically provided at the cuffs, and waterproof boots (3) are hermetically provided at the trouser legs; The dust-proof clothing (1) has a three-layer structure of outer, middle and inner layers. The inner layer is made of cotton knitted fabric, the middle layer is a phase change material layer, and the outer layer is twill fabric.

6. The personal dust-proof, dehumidifying and temperature-regulating suit for deep-shaft mines according to claim 5, characterized in that, At the chest of the dust-proof clothing (1), there are annular pipelines (13) arranged side by side up and down. One end of the pipeline (13) is sealed, the other end is provided with an opening valve (14), and a phase change material (12) is arranged inside. The phase change material (12) is an ice sand gel mixture.

7. A method for using an individual dust-proof, dehumidifying and temperature-regulating suit for deep-shaft mining as described in claim 6, characterized in that, Specifically, it includes the following steps: A. Before use, the individual dust-proof and dehumidifying adjustment set for deep well mining needs to be hung on the hanger in a constant temperature room with a room temperature of 20°C, so that the phase change material (12) in the middle layer of the dust-proof clothing (1) becomes solid, and the charging hole (41) reserved at the rear of the helmet main body (4) charges the lithium battery box (44) to a full charge state. B. When wearing, the front zipper (11) of the dust-proof clothing (1) is opened. The operator puts on the dust-proof clothing (1) in a back-in manner, puts both hands into the corresponding protective gloves (2), puts feet into the corresponding waterproof boots (3), zips up the zipper (11), and wears the helmet main body (4) to cover the nose and mouth with the half mask (5). C. Start the blowers (72) on the left and right sides of the helmet main body (4). The outside dusty air tangentially enters from the air inlet (62) on the separation cylinder body (61) and swirls downward along the inner wall of the inverted cone. During the swirling process, under the action of centrifugal force, dust particles with an aerodynamic diameter ≥ 10 μm continuously collide with the peripheral wall of the separation cylinder body (61) and are deposited in the corresponding dust removal chamber (641) to complete the primary purification. The dust removal plate (642) in the middle of the dust removal chamber (641) deflects as the dust accumulates, causing the dust to fall and be discharged from the dust outlet (644) at the lower end of the dust removal chamber (641). The air pressure in the dust removal chamber (641) is constant with the air pressure in the exhaust pipe (63); when the dust particles on the dust removal plate (642) are removed and the gravity decreases, the counterweight (643) resets the dust removal plate (642) again. The dust outlet (644) at the lower end of the dust removal chamber (641) makes the air pressure in the dust removal chamber (641) balance with the outside. The remaining air swirls to the lower end of the separation cylinder body (61) and then starts to swirl and rise, and enters the arc-shaped exhaust pipe (63) under the negative pressure of the blower (72). D. The air in the exhaust pipe (63) undergoes secondary purification through the metal filter screen (65). Dust particles with an aerodynamic diameter ≥ 5 μm are captured and blocked outside the metal filter screen (65) and deposited in the corresponding dust removal chamber (641). The dust removal plate (642) in the middle of the dust removal chamber (641) deflects as the dust accumulates, causing the dust to fall and be discharged from the lower dust outlet (644). The air passing through the metal filter screen (65) enters the middle cavity of the helmet main body (4). E. The air purified in the cavity undergoes tertiary dust-proof purification treatment and single-stage moisture absorption treatment first from the outer layer of the dust and moisture absorption filter material of the dehumidifying pipe (74). During this process, dust particles with an aerodynamic diameter ≥ 2.5 μm are filtered out, and the high-humidity air with a relative humidity ≥ 90% is absorbed to a relative humidity range of 45% - 65%. Next, the air passes through the inner layer of the electret fiber filter material of the dehumidification tube (74) for four - stage dust filtration to completely remove dust particles with an aerodynamic diameter ≤ 2.5 μm; F. The air purified through four - stage purification is collected by the claw - shaped exhaust pipe (73), and then successively passes through the fan (72) and the air supply pipe (71) and enters the air inlets on the left and right sides of the half - mask (5), and finally enters the visco - elastic composite half - mask (5) to supply breathing air for the operator; The redundant clean air flow inside the half - mask (5) continuously passes through the one - way exhaust valve (51) at the lower part of the half - mask (5) and enters the internal space between the inner layer of the dust - proof suit (1) and the skin; G. When the human body is in a high - temperature environment, the phase - change material (12) absorbs the heat of the human body to reach the phase - change temperature and gradually undergoes a phase change, and the human body temperature slowly drops and is maintained at 26 °C; After use, regularly remove the outer layer of the helmet main body (4), and remove and replace the dehumidification cylinder through the buckle on the claw - shaped exhaust pipe (73).

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