Heat preservation device for mine slope road

Abstract

The utility model relates to the technical field of road heat preservation, and discloses a heat preservation device for a mine slope road, which comprises an air supply box, a preheating assembly is arranged on one side of the air supply box, an air outlet pipe assembly is arranged at one end of the preheating assembly, the air outlet pipe assembly comprises an air outlet pipe, and an air inlet groove is formed in one side of the air outlet pipe. Two sets of electric telescopic rods are arranged on the other side of the air outlet pipe, a connecting plate is fixedly installed at the output ends of the electric telescopic rods, a connecting column is fixedly installed on one side of the connecting plate, a piston disc is fixedly installed at one end of the connecting column, a connecting shell is slidably arranged on the outer side of the piston disc, and multiple sets of first fans are fixedly installed in the air outlet pipe; the electric telescopic rod drives the piston disc to blow the first fan in a pulse mode, wind power is enhanced, the second fan at the exhaust hood enables blown wind to generate a rotating effect, hot wind is more evenly distributed on the cross section of the slope road, local overheating or supercooling is avoided, and the heat preservation and anti-freezing effect on the mine slope road is effectively improved.

Description

Technical Field

[0001] This utility model relates to the field of road insulation technology, and in particular to an insulation device for mine slope roads. Background Technology

[0002] Mine ramps are crucial facilities in mine construction. They serve not only as passageways for transporting workers, vehicles, equipment, and materials, but also as air intakes for the mine's underground ventilation system, responsible for supplying fresh air to the mine. Due to the frequent movement of workers and vehicles up and down ramps, they are typically left open for convenience. In Northwest China, winters are long, generally lasting five months of severe cold, with extreme minimum temperatures around -20°C and average temperatures around -10°C. During the cold season, the ramps descending approximately several meters from the entrance experience severe condensation due to the convergence of warm and cold air and the large temperature difference, resulting in icy roads. This poses serious safety hazards for personnel and vehicles. Vehicles slipping on icy surfaces can lose control and cause accidents; falling icicles can injure vehicles and personnel, causing significant harm; and icy roads hinder normal vehicle traffic, disrupting the supply of materials needed for underground mining operations and impacting production.

[0003] A Chinese patent with publication number CN217604358U discloses a ventilation system for a central pump room in a coal mine. Outdoor air is first introduced into an air inlet duct. A fine screen at the duct inlet isolates impurities in the air. The filtered air then enters a filtration chamber, where it is filtered, cleaned, and purified. The pre-purified air then enters a preheating chamber. A dense mesh screen is installed between the filtration and preheating chambers to further clean, purify, and filter the air entering the preheating chamber, ensuring the airflow and quality. The temperature of the radiators is adjusted manually to maintain a constant air temperature in the preheating chamber. The preheated air is then sent into a heating chamber by a centrifugal fan, where it mixes with the hot air generated by a steam heater. During heating, the centrifugal fan operates continuously to accelerate convective heat transfer. Ten sets of steam heaters are installed in the heating chamber, with five sets forming one unit. The steam heaters are vertically positioned facing the airflow direction to increase the heat exchange area of ​​the cold air, ensuring that the air entering the heating chamber passes through the gaps in the steam heater tube bundles for rapid convective heat transfer.

[0004] Regarding the above and existing related technologies, the inventors believe that the following defects often exist: the mixing effect of hot air outlet and cold air entering from the surface slope may not be ideal. Relying solely on natural negative pressure and simple protective railing design, it is difficult to ensure that the mixed air is evenly distributed across the entire slope road section, and there may be localized situations where the temperature is too high or too low, making it impossible to achieve comprehensive and uniform antifreeze and heat preservation. Utility Model Content

[0005] The technical problem to be solved by this utility model is that the existing technology has the disadvantage that the mixing effect of hot air outlet and cold air entering from the surface slope is not ideal. To this end, we propose a heat preservation device for mine slope roads.

[0006] To achieve the above objectives, this application adopts the following technical solution: a heat preservation device for mine slope roads, including an air supply box, a preheating component installed on one side of the air supply box, and an air outlet pipe assembly installed at one end of the preheating component. When heat preservation treatment is required for the mine slope road, the air supply box absorbs outdoor cold air, which is then heated by the preheating component and blown onto the road surface of the mine slope road through the air outlet pipe assembly. This allows the hot air to be more evenly distributed across the cross-section of the slope road, preventing the hot air from concentrating in a certain area and improving the initial mixing effect of the hot and cold air.

[0007] Preferably, a centrifugal fan is fixedly installed inside the air supply box. The exhaust port of the centrifugal fan is connected to the preheating component. The air inlet of the centrifugal fan passes through the air supply box and is fixedly installed with a filter disc. The outside air is filtered by the centrifugal fan and then enters the preheating component for heating. The hot air is then blown to the road surface of the mine slope through the air outlet assembly.

[0008] Preferably, the preheating component includes a preheating pipe, one end of which is fixedly connected to the exhaust port of the centrifugal fan by bolts. A vacuum insulation pipe is fixedly installed on the outside of the preheating pipe. The vacuum insulation pipe reduces the heat exchange between the air inside the preheating pipe and the outside air, improves the heating rate of the hot air, and makes the road surface insulation effect of the mine slope road better.

[0009] Preferably, the preheating tube is equipped with multiple sets of steam heaters. The inlet of the steam heater is equipped with an air inlet valve. Two sets of symmetrical guide plates are fixedly installed at the lower end of the preheating tube. A collection box is set at the connection of the two sets of guide plates. The condensate formed by steam condensation is collected through the collection box. After cold air enters the preheating tube, high-temperature steam is introduced into the air inlet valve, which causes the steam heater to dissipate heat from the inside to the outside, thus heating the cold air. At the same time, the liquid condensed by the steam heater flows through the two sets of guide plates to the collection box for collection and discharge, reducing the impact of the condensed liquid on the heating of the air.

[0010] Preferably, the air outlet duct assembly includes an air outlet duct, an air inlet slot is provided on one side of the air outlet duct, the air inlet slot is matched with the preheating pipe, and multiple sets of exhaust hoods are provided on one side of the air outlet duct. After the heated air passes through the interior of the air outlet duct, it passes through multiple sets of exhaust hoods to perform heat preservation and antifreeze treatment on the road surface of the mine slope road.

[0011] Preferably, two sets of electric telescopic rods are provided on the other side of the air outlet duct. A connecting plate is fixedly installed at the output end of the electric telescopic rod, a connecting column is fixedly installed on one side of the connecting plate, a piston disc is fixedly installed at one end of the connecting column, and a connecting shell is slidably provided on the outer side of the piston disc. The connecting shell passes through the air outlet duct and is fixedly connected to it. Multiple sets of fans are fixedly installed inside the air outlet duct. The positions of the fans correspond to those of the connecting shells, and the connecting shells are connected to the fans. Two sets of connecting rods are fixedly installed on the outer side of the exhaust hood. A connecting ring is rotatably installed between the two sets of connecting rods, and a fan is fixedly installed inside the connecting ring. Second, after hot air flows into the exhaust duct, the electric telescopic rod is activated to drive the connecting plate and the connecting column and piston disc on one side to move inside the connecting shell, which pulses the airflow of fan one. The thrust air generated by the pulse is delivered to the suction side of fan one through the connecting shell and mixes with the naturally drawn air, directly increasing the air intake of fan one and increasing its blowing intensity. The enhanced air is discharged through the exhaust hood, and at the same time as it blows out of the exhaust hood, it drives fan two and its outer connecting ring to rotate, so that the air rotates and improves the heat preservation effect on the mine slope road.

[0012] The technical effects and advantages of this utility model are as follows:

[0013] In this invention, a centrifugal fan in the air supply box works with a filter disc to filter the air. The vacuum insulation pipe in the preheating assembly reduces heat exchange, the steam heater heats the air, and the diversion plate and collection box treat condensate, thus improving preheating efficiency and stability. In the air outlet assembly, an electric telescopic rod drives a piston disc to pulse the fan, enhancing the airflow. The fan at the exhaust hood causes the blown air to rotate, allowing the hot air to be more evenly distributed across the cross-section of the sloping road, avoiding local overheating or undercooling, effectively improving the insulation and antifreeze effect on the mine's sloping road. Furthermore, each component has a clear division of labor and works together to ensure the efficient and orderly progress of the insulation work. Attached Figure Description

[0014] The disclosure of this utility model is illustrated with reference to the accompanying drawings. It should be understood that the drawings are for illustrative purposes only and are not intended to limit the scope of protection of this utility model. In the drawings, the same reference numerals are used to refer to the same parts:

[0015] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0016] Figure 2 This is a schematic diagram of the air supply box and preheating component of this utility model;

[0017] Figure 3 This is a schematic diagram of the internal structure of the air supply box of this utility model;

[0018] Figure 4This is a schematic diagram of the internal structure of the preheating component of this utility model;

[0019] Figure 5 This is a schematic diagram of the air outlet duct assembly of this utility model.

[0020] Figure 6 This is a schematic diagram of the internal structure of the air outlet duct assembly of this utility model. Figure 2 ;

[0021] Figure 7 This is a schematic diagram of the exhaust hood structure of this utility model.

[0022] Legend: 1. Air supply box; 11. Centrifugal fan; 12. Filter plate; 2. Preheating assembly; 21. Preheating pipe; 211. Bolt; 212. Drain plate; 213. Collection box; 22. Vacuum insulation pipe; 23. Steam heater; 231. Inlet valve; 3. Outlet duct assembly; 31. Outlet duct; 311. Inlet slot; 312. Exhaust hood; 3121. Connecting rod; 3122. Connecting ring; 3123. Fan 2; 313. Fan 1; 32. Electric telescopic rod; 321. Connecting plate; 322. Connecting column; 323. Piston disc; 324. Connecting shell. Detailed Implementation

[0023] It is readily understood that, based on the technical solution of this utility model, those skilled in the art can propose various interchangeable structural methods and implementations without altering the essential spirit of this utility model. Therefore, the following detailed embodiments and accompanying drawings are merely illustrative descriptions of the technical solution of this utility model and should not be considered as the entirety of this utility model or as limitations or restrictions on the technical solution of this utility model.

[0024] Reference Figure 1 As shown, this utility model provides a technical solution: a heat preservation device for mine slope roads, including an air supply box 1, a preheating component 2 installed on one side of the air supply box 1, and an air outlet pipe assembly 3 installed at one end of the preheating component 2. When it is necessary to heat preservation the mine slope road, the air supply box 1 absorbs outdoor cold air, which is heated by the preheating component 2 and then blown onto the road surface of the mine slope road through the air outlet pipe assembly 3, so that the hot air can be more evenly distributed on the cross-section of the slope road, avoiding the hot air from concentrating in a certain area and improving the initial mixing effect of hot air and cold air.

[0025] Reference Figure 1-3As shown in this embodiment: a centrifugal fan 11 is fixedly installed inside the air supply box 1. The exhaust port of the centrifugal fan 11 is connected to the preheating component 2. The air inlet of the centrifugal fan 11 passes through the air supply box 1 and is fixedly installed with a filter plate 12. The outside air is filtered by the centrifugal fan 11 and then enters the preheating component 2 for heating. The hot air is then blown to the road surface of the mine slope road through the air outlet pipe assembly 3.

[0026] Reference Figure 2-3 As shown in this embodiment: the preheating component 2 includes a preheating pipe 21. One end of the preheating pipe 21 is fixedly connected to the exhaust port of the centrifugal fan 11 by bolts 211. A vacuum insulation pipe 22 is fixedly installed on the outside of the preheating pipe 21. The vacuum insulation pipe 22 reduces the heat exchange between the air in the preheating pipe 21 and the outside air, improves the heating rate of the hot air, and makes the road surface insulation effect of the mine slope road better.

[0027] Reference Figure 3-4 As shown in this embodiment: multiple sets of steam heaters 23 are installed inside the preheating pipe 21. The inlet of the steam heater 23 is equipped with an air inlet valve 231. Two sets of symmetrical guide plates 212 are fixedly installed at the lower end of the preheating pipe 21. A collection box 213 is provided at the connection of the two sets of guide plates 212. The condensate formed by steam condensation is collected through the collection box 213. After cold air enters the preheating pipe 21, high-temperature steam is introduced into the air inlet valve 231, which causes the steam heater 23 to dissipate heat to the outside and heat the cold air. At the same time, the liquid condensed by the steam heater 23 flows through the two sets of guide plates 212 to the collection box 213 for collection and discharge, reducing the heating effect of the condensed liquid on the air.

[0028] Reference Figure 1-2 , Figure 5 As shown in this embodiment: the air outlet duct assembly 3 includes an air outlet duct 31, an air inlet slot 311 is provided on one side of the air outlet duct 31, the air inlet slot 311 is matched with the preheating pipe 21, and multiple sets of exhaust hoods 312 are provided on one side of the air outlet duct 31. After the heated air passes through the interior of the air outlet duct 31, it passes through multiple sets of exhaust hoods 312 to perform heat preservation and antifreeze treatment on the road surface of the mine slope road.

[0029] Reference Figure 5-6As shown in this embodiment: two sets of electric telescopic rods 32 are provided on the other side of the air outlet duct 31. A connecting plate 321 is fixedly installed at the output end of the electric telescopic rod 32. A connecting column 322 is fixedly installed on one side of the connecting plate 321. A piston disc 323 is fixedly installed at one end of the connecting column 322. A connecting shell 324 is slidably provided on the outer side of the piston disc 323. The connecting shell 324 passes through the air outlet duct 31 and is fixedly connected to it. Multiple sets of fans 313 are fixedly installed inside the air outlet duct 31. The positions of the fans 313 and the connecting shell 324 are corresponding, and the connecting shell 324 is connected to the fans 313. After hot air flows into the air outlet duct 31, it is activated by starting... The electric telescopic rod 32 drives the connecting plate 321 and the connecting column 322 and piston disc 323 on one side to move inside the connecting shell 324, which pulses the fan 313. The thrust air generated by the pulse is delivered to the suction side of the fan 313 through the connecting shell 324 and mixes with the naturally drawn air, directly increasing the air intake of the fan 313 and increasing its blowing intensity. The enhanced air is discharged through the exhaust hood 312. At the same time as it blows out of the exhaust hood 312, it drives the fan 3123 and its outer connecting ring 3122 to rotate, so that the air rotates and improves the heat preservation effect of the mine slope road.

[0030] Reference Figure 6-7 As shown in this embodiment: two sets of connecting rods 3121 are fixedly installed on the outer side of the exhaust hood 312, a connecting ring 3122 is rotatably installed between the two sets of connecting rods 3121, and a second fan 3123 is fixedly installed inside the connecting ring 3122.

[0031] Working principle: When insulation of the mine slope road is required, the centrifugal fan 11 in the air supply box 1 draws in and filters the cold outdoor air through the filter plate 12 at the air inlet, and then sends it into the preheating pipe 21 of the preheating component 2; the vacuum insulation pipe 22 outside the preheating pipe 21 reduces heat exchange, and high-temperature steam is introduced into the steam heater 23 through the air inlet valve 231. The steam heater 23 dissipates heat to heat the air, and the condensed liquid flows into the collection box 21 through the guide plate 212. 3. Exhaust: The heated air enters the exhaust pipe 31 through the air inlet slot 311 of the exhaust pipe assembly 3. The electric telescopic rod 32 is activated, which drives the connecting plate 321, connecting column 322 and piston disc 323 to move in the connecting shell 324, which pulses the fan 1 313, increasing its air intake and blowing intensity. When the enhanced air is discharged from the exhaust hood 312, it drives the fan 2 3123 and its outer connecting ring 3122 to rotate, so that the hot air is evenly distributed on the cross section of the sloping road, achieving heat preservation and antifreeze.

[0032] The scope of the utility model is not limited to the content described above. Those skilled in the art can make various modifications and variations to the above embodiments without departing from the technical concept of the utility model, and all such modifications and variations should fall within the protection scope of the utility model.

Claims

1. A heat insulation device for mine slope roads, characterized in that: It includes an air supply box, a preheating component is installed on one side of the air supply box, and an air outlet duct assembly is installed at one end of the preheating component; The air outlet duct assembly includes an air outlet duct. An air inlet slot is provided on one side of the air outlet duct, which matches the preheating component. Two sets of electric telescopic rods are provided on the other side of the air outlet duct. A connecting plate is fixedly installed at the output end of the electric telescopic rod. A connecting column is fixedly installed on one side of the connecting plate. A piston disc is fixedly installed at one end of the connecting column. A connecting shell is slidably provided on the outer side of the piston disc. The connecting shell passes through the air outlet duct and is fixedly connected to it. Multiple sets of fans are fixedly installed inside the air outlet duct.

2. The insulation device for mine slope roads according to claim 1, characterized in that: A centrifugal fan is fixedly installed inside the air supply box. The exhaust port of the centrifugal fan is connected to the preheating component. The air inlet of the centrifugal fan passes through the air supply box and is fixedly installed with a filter disc.

3. The insulation device for mine slope roads according to claim 2, characterized in that: The preheating component includes a preheating pipe, one end of which is fixedly connected to the exhaust port of the centrifugal fan by bolts, and a vacuum insulation pipe is fixedly installed on the outside of the preheating pipe.

4. The insulation device for mine slope roads according to claim 3, characterized in that: The preheating tube is equipped with multiple sets of steam heaters. The inlet of each steam heater is equipped with an air inlet valve. Two sets of diversion plates are fixedly installed at the lower end of the preheating tube. A collection box is provided at the lower end where the two sets of diversion plates are connected.

5. The insulation device for mine slope roads according to claim 4, characterized in that: The air outlet duct assembly includes an air outlet duct, an air inlet slot is provided on one side of the air outlet duct, the air inlet slot is matched with the preheating pipe, and multiple sets of exhaust hoods are provided on one side of the air outlet duct.

6. The insulation device for mine slope roads according to claim 5, characterized in that: Two sets of connecting rods are fixedly installed on the outer side of the exhaust hood, and a connecting ring is rotatably installed between the two sets of connecting rods. A second fan is fixedly installed inside the connecting ring.

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