A highly efficient mine return air indirect shaft antifreeze device

Abstract

The present invention discloses a high-efficiency mine return air indirect shaft antifreeze device, which relates to the technical field of mine ventilation, and comprises a central cylinder body, the outer wall of the central cylinder body is fixedly installed with a plurality of U-shaped associated frames, and the plurality of U-shaped associated frames are equidistantly distributed on the outer wall of the central cylinder body, each of the U-shaped associated frames is provided with two path slides inside, each of the path slides is movably inserted with a T-shaped slide plate inside, a reinforced outer plate is fixedly installed on the outer wall of each T-shaped slide plate, a load-bearing bracket is fixedly installed between the tops of every two of the reinforced outer plates, and a hollow arc sleeve is fixedly sleeved on the outer wall of each load-bearing bracket, and the equipment body is independently separated from the shaft by improving the shape of the equipment, so that the equipment can be flexibly disassembled from the shaft, thereby reducing the difficulty of equipment maintenance, and the plurality of workmanship components are equidistantly distributed on the periphery of the main frame, so that the hollow part of the central cylinder body is protected from being blocked by the components, thereby preventing the gas flow from being obstructed and restricted.

Description

Technical Field

[0001] The invention relates to the technical field of mine ventilation, in particular to a high-efficiency mine return air indirect shaft antifreeze device. Background Art

[0002] The mine return air indirect shaft is a design used in mine ventilation systems to improve the safety and ventilation efficiency of mines. This design is usually used in large mines or mines under complex geological conditions to ensure air circulation and the discharge of harmful gases within the mine.

[0003] The reasons for the freezing of indirect wellbore are mainly related to the ambient temperature, humidity, and the design and operation of the ventilation system. The increase in the thickness of the ice layer in the air duct will lead to increased ventilation resistance, accumulation of harmful gases, increased load on electrical components, explosion of flammable gases and difficulty in maintenance. Therefore, when working on the indirect wellbore, it is necessary to regularly obtain the situation in the airway, efficiently clean the retained ice layer, and ensure that the indirect wellbore is always in an efficient ventilation state.

[0004] However, the existing indirect wellbore antifreeze technology has the following shortcomings:

[0005] The existing wellbore antifreeze technology mainly improves the airway structure layout, completes the installation of multiple auxiliary equipment according to the airflow direction, and suppresses the formation of ice through various physical intervention methods, but there are still some shortcomings, such as:

[0006] This type of antifreeze technology requires a lot of auxiliary equipment, and the sizes of different auxiliary equipment also vary greatly, which seriously affects the smoothness of gas flow. Due to the limitations of the wellbore working area, the auxiliary components are in a dark and humid environment for a long time, and the electrical components are easily corroded and damaged, resulting in problems such as excessive difficulty in maintenance.

[0007] Because ice is mainly composed of water, the liquid water formed after traditional antifreeze technology treatment cannot be discharged from the wellbore in time. As the retention volume increases, the humidity in the barrel will further increase. At the same time, it will cause secondary freezing in some areas of the barrel, seriously affecting the treatment effect.

[0008] Therefore, we proposed a high-efficiency mine return air indirect shaft antifreeze device to solve the above-mentioned problems. Summary of the invention

[0009] The purpose of the present invention is to provide a high-efficiency mine return air indirect shaft antifreeze device. The equipment optimizes the de-icing method and improves the equipment shape, separates the equipment body from the shaft independently, and uses the driving components to work together so that the equipment can reciprocate in the shaft at a regular interval. The equipment has the function of flexibly expanding the outer diameter to ensure that the workmanship components can fully fit the inner wall of the shaft. Each workmanship component is equidistantly distributed on the periphery of the main frame, thereby ensuring that the hollow part is not blocked, thereby improving the de-icing efficiency and effect, and solving the problems raised by the above-mentioned background technology.

[0010] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: an efficient mine return air indirect shaft antifreeze device, comprising a central cylinder body, a plurality of U-shaped associated frames are fixedly installed on the outer wall of the central cylinder body, and the plurality of U-shaped associated frames are equidistantly distributed on the outer wall of the central cylinder body, each of the U-shaped associated frames is provided with two path slides inside, a T-shaped slide is movably inserted inside each of the path slides, a reinforced outer plate is fixedly installed on the outer wall of each of the T-shaped slides, a load-bearing bracket is fixedly installed between the tops of every two of the reinforced outer plates, a hollow arc sleeve is fixedly sleeved on the outer wall of each of the load-bearing brackets, limited position slides are provided on both sides of the outer wall of each of the hollow arc sleeves, a contact arc plate is movably inserted inside each of the limited position slides, and each Induction sealing plates are fixedly installed on both sides of the inner wall of each hollow arc-shaped sleeve, fan-shaped grooves are opened on both sides of the outer wall of each hollow arc-shaped sleeve, and an electrically adjustable high-resistance heating plate is fixedly connected inside each fan-shaped groove, and independent power supplies are fixedly installed on both sides of the inner wall of each hollow arc-shaped sleeve, and the wiring terminals of each independent power supply are fixedly connected to a group of transmission wires, and the output ends of each group of transmission wires are respectively connected to the wiring terminals of a corresponding electrically adjustable high-resistance heating plate, and a first built-in support plate is fixedly installed inside each of the hollow arc-shaped sleeves, and a group of locking frames are fixedly installed inside each of the first built-in support plates, and two drive components are fixedly installed inside each of the locking frames, and the shaft ends of each drive component are fixedly sleeved with independent rollers.

[0011] Preferably, the outer wall of each of the induction sealing plates is fixedly connected to a wiring base, the interior of each of the wiring bases is fixedly connected to a group of information wires, and the output end of each group of information wires is respectively connected to the internal wiring of a corresponding hollow arc sleeve.

[0012] Preferably, a group of first positioning sleeves are opened on both sides of the outer wall of each of the hollow arc-shaped sleeves, a metal sliding rod is movably inserted inside each of the first positioning sleeves, and a linkage component is fixedly sleeved on the outer wall of each of the metal sliding rods. Each group of the linkage components is respectively connected to a corresponding contact arc plate, and an active spring is fixedly installed between each of the first positioning sleeves and the opposite side of the linkage component, and each active spring is movably sleeved on the outer wall of a corresponding metal sliding rod.

[0013] Preferably, each of the electrically adjustable high-resistance heating plates is provided with adsorption holes, a group of locking seats are fixedly installed on both sides of the inner wall of each of the hollow arc-shaped sleeves, an external connector is fixedly installed inside each of the locking seats, and the number of each group of external connectors is equal to a group of adsorption holes, and the liquid inlet end of each external connector is respectively connected to a corresponding adsorption hole, and the outer wall of each electrically adjustable high-resistance heating plate is provided with a guide strip.

[0014] Preferably, grafting support plates are welded to both sides of the outer wall of each of the first built-in support plates, and a pump body assembly is fixedly installed on the top of each of the grafting support plates.

[0015] Preferably, connecting ring frames are fixedly installed on both sides of the outer wall of the central cylinder body, a reflux ring box is fixedly installed on the outer wall of each connecting ring frame, the outer wall of each reflux ring box is wrapped with a thermal insulation cotton cover, the outer wall of each reflux ring box is fixedly connected to a discharge pipe, and an electric valve is provided inside each discharge pipe.

[0016] Preferably, the input end of each of the pump body assemblies is fixedly connected to a group of first delivery hoses, the liquid inlet end of each of the first delivery hoses respectively penetrates the outer wall of a corresponding external connector and is connected to the interior of the external connector, and the output end of each of the pump body assemblies is fixedly connected to a group of second delivery hoses, the liquid discharge end of each of the second delivery hoses respectively penetrates the outer wall of a corresponding return ring box and is connected to the interior of the return ring box.

[0017] Preferably, an assembly base is fixedly mounted on the outer wall of the central cylinder body, an electrical control box is fixedly mounted on the bottom of the assembly base, and the electrical control box is connected to the internal wiring of the equipment.

[0018] Preferably, an inner ring frame is fixedly mounted on the inner surface wall of the middle cylinder body, a metal ring sleeve is fixedly mounted on the inner surface wall of the inner ring frame, and a filter plate is embedded in the interior of the metal ring sleeve.

[0019] Preferably, a second built-in support plate is fixedly installed inside each of the U-shaped associated frames, a group of second positioning sleeves are fixedly installed inside each of the second built-in support plates, an electric push rod is fixedly inserted into the inner surface wall of each of the second positioning sleeves, and the shaft ends of each group of electric push rods are fixedly inserted into the interior of a corresponding load-bearing bracket.

[0020] Compared with the prior art, the present invention has the following beneficial effects:

[0021] 1. The present invention optimizes the de-icing method, improves the shape of the equipment, and independently distinguishes the equipment body from the wellbore. The driving component cooperates with the equipment to reciprocate in the wellbore at a regular interval, so that the equipment can be flexibly disassembled from the wellbore, which is convenient for equipment cleaning and maintenance. Because the equipment can flexibly expand the outer diameter range, it can be ensured that the workmanship components can fully fit the inner wall of the wellbore. Because each workmanship component is equidistantly distributed on the periphery of the main frame, the hollow part of the central barrel is free from being blocked by the components, thereby preventing obstruction and restriction of gas flow.

[0022] 2. The multiple working components provided in the present invention are all independently powered, so that each component can operate independently, complete signal collection one by one, and quickly feed back to the relevant system modules, clarify the location of the ice layer, and reasonably control the opening of the corresponding working components, effectively improve the utilization rate of electricity, reduce the overall power consumption of the equipment, and increase the working time of the equipment.

[0023] 3. The present invention can process the melted liquid water in time, and temporarily store the liquid water in a container by physical adsorption, so as to prevent the liquid water from falling into the wellbore and prevent secondary freezing due to excessive water retention in the wellbore. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 This is a main structural stereogram of a high-efficiency mine return air indirect shaft antifreeze device of the present invention;

[0025] Figure 2 This is a three-dimensional diagram of the bottom structure of a high-efficiency mine return air indirect shaft antifreeze device of the present invention;

[0026] Figure 3 It is an enlarged stereoscopic diagram of the split structure in a high-efficiency mine return air indirect shaft antifreeze device of the present invention;

[0027] Figure 4 The invention discloses a high-efficiency mine return air indirect shaft antifreeze device. Figure 3 The enlarged stereogram of the structure at B in the middle;

[0028] Figure 5 It is an enlarged stereoscopic diagram of part of the structure of a high-efficiency mine return air indirect shaft antifreeze device of the present invention;

[0029] Figure 6 It is an enlarged stereoscopic view of the connected structure inside the hollow arc sleeve in a high-efficiency mine return air indirect shaft antifreeze device of the present invention;

[0030] Figure 7 It is an enlarged stereoscopic view of the structure connected to the central barrel body in a high-efficiency mine return air indirect shaft antifreeze device of the present invention.

[0031] In the figure: 1. Central cylinder; 2. U-shaped associated frame; 3. Path slide; 4. T-shaped slide; 5. Strengthened outer plate; 6. Load-bearing bracket; 7. Hollow arc sleeve; 8. Limit slide; 9. Induction sealing plate; 10. Wiring base; 11. Information line; 12. First positioning sleeve; 13. Metal slide bar; 14. Active spring; 15. Linkage assembly; 16. Fan-shaped slot; 17. Electric high-resistance heating plate; 18. Independent power supply; 19. Transmission wire; 20. First built-in bracket; 21. Locking frame; 22. Drive assembly; 23 , independent roller; 24, adsorption hole; 25, locking seat; 26, external joint; 27, grafting support plate; 28, pump body assembly; 29, connecting ring frame; 30, return ring box; 31, insulation cotton sleeve; 32, first delivery hose; 33, second delivery hose; 34, discharge pipe; 35, electric valve; 36, assembly base; 37, electrical control box; 38, inner ring frame; 39, metal ring sleeve; 40, filter plate; 41, second built-in support plate; 42, second positioning sleeve; 43, electric push rod; 44, contact arc plate. DETAILED DESCRIPTION

[0032] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the implementation regulations described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0033] Please see attached Figure 1 -Attached Figure 7As shown, the present invention provides a technical solution: an efficient mine return air indirect shaft antifreeze device, comprising a central cylinder body 1, a plurality of U-shaped associated frames 2 are fixedly installed on the outer wall of the central cylinder body 1, and the plurality of U-shaped associated frames 2 are equidistantly distributed on the outer wall of the central cylinder body 1, each U-shaped associated frame 2 is provided with two path slideways 3 inside, each path slideway 3 is movably inserted with a T-shaped slide plate 4 inside, a reinforced outer plate 5 is fixedly installed on the outer wall of each T-shaped slide plate 4, a load-bearing bracket 6 is fixedly installed between the tops of every two reinforced outer plates 5, a hollow arc sleeve 7 is fixedly sleeved on the outer wall of each load-bearing bracket 6, a limited position slideway 8 is provided on both sides of the outer wall of each hollow arc sleeve 7, a contact arc plate 44 is movably inserted inside each limited position slideway 8, and each hollow arc sleeve 7 is fixedly sleeved with a hollow arc sleeve 7. Induction sealing plates 9 are fixedly installed on both sides of the inner wall, fan-shaped grooves 16 are opened on both sides of the outer wall of each hollow arc sleeve 7, and an electrically adjustable high-resistance heating plate 17 is fixedly connected inside each fan-shaped groove 16, and an independent power supply 18 is fixedly installed on both sides of the inner wall of each hollow arc sleeve 7, and the wiring terminals of each independent power supply 18 are fixedly connected to a group of transmission wires 19, and the output ends of each group of transmission wires 19 are respectively connected to the wiring terminals of a corresponding electrically adjustable high-resistance heating plate 17, and a first built-in support plate 20 is fixedly installed inside each hollow arc sleeve 7, and a group of locking frames 21 are fixedly installed inside each first built-in support plate 20, and two drive components 22 are fixedly installed inside each locking frame 21, and the shaft end of each drive component 22 is fixedly sleeved with an independent roller 23.

[0034] according to Figure 3 As shown, the outer wall of each induction sealing plate 9 is fixedly connected with a wiring base 10, and the interior of each wiring base 10 is fixedly connected with a group of information lines 11, and the output ends of each group of information lines 11 are respectively connected to the internal wiring of a corresponding hollow arc sleeve 7. By presetting the above components, since each induction sealing plate 9 is connected to a wiring base 10, the signal detected by each induction sealing plate 9 can be independently sent to the relevant module in the electrical control box 37. The purpose is to facilitate the relevant modules in the electrical control box 37 to control each electrically adjustable high-resistance heating plate 17, accurately position the ice layer, and accurately open the electrically adjustable high-resistance heating plate 17 at the corresponding position, thereby reducing the overall energy consumption of the equipment and increasing the working time of the equipment.

[0035] according to Figure 3 , Figure 4 and Figure 5As shown, a group of first positioning sleeves 12 are provided on both sides of the outer wall of each hollow arc sleeve 7, a metal slide bar 13 is movably inserted inside each first positioning sleeve 12, a linkage assembly 15 is fixedly sleeved on the outer wall of each metal slide bar 13, each group of linkage assembly 15 is respectively connected to a corresponding contact arc plate 44, an active spring 14 is fixedly installed between each first positioning sleeve 12 and the opposite side of the linkage assembly 15, and each active spring 14 is movably sleeved on the outer wall of a corresponding metal slide bar 13, by presetting the above components, using the limit slide 8 and The contact arc plate 44 and the first positioning sleeve 12 and the metal slide rod 13 are movablely connected. When the front end of the contact arc plate 44 contacts the ice layer, the contact arc plate 44 can quickly retract to the inside of the limiting slide 8 due to the shielding of the ice layer, and its end is fully in contact with the induction sealing plate 9. The generated induction signal is quickly fed back to the equipment system to control the opening of the electrically adjustable high-resistance heating plate 17. Due to the uneven moisture inside the wellbore, the ice layer formed will appear undulating. The components are coordinated to ensure that the contact arc plate 44 can quickly detach from the induction sealing plate 9, providing the necessary conditions for closing the electrically adjustable high-resistance heating plate 17.

[0036] according to Figure 6 As shown, each electrically adjustable high-resistance heating plate 17 is provided with adsorption holes 24 inside, and a group of locking seats 25 are fixedly installed on both sides of the inner wall of each hollow arc-shaped sleeve 7, and an external connector 26 is fixedly installed inside each locking seat 25, and the number of each group of external connectors 26 is equal to that of a group of adsorption holes 24, and the liquid inlet end of each external connector 26 is respectively connected with a corresponding adsorption hole 24, and the outer wall of each electrically adjustable high-resistance heating plate 17 is provided with a guide strip. By presetting the above components, since the initial set area of ​​the electrically adjustable high-resistance heating plate 17 is larger, the thickness of the ice layer is limited, and it is mostly in contact with the upper half of the electrically adjustable high-resistance heating plate 17, and the guide strip can play a role of drainage on the one hand, and lock water on the other hand, so that the liquid water can be fully sucked out and the amount falling into the wellbore is reduced.

[0037] according to Figure 6 As shown, grafting support plates 27 are welded to both sides of the outer wall of each first built-in support plate 20 , and a pump body assembly 28 is fixedly installed on the top of each grafting support plate 27 .

[0038] according to Figure 3 , Figure 5 and Figure 7As shown, connecting ring frames 29 are fixedly installed on both sides of the outer wall of the central cylinder body 1, and a return ring box 30 is fixedly installed on the outer wall of each connecting ring frame 29. The outer wall of each return ring box 30 is wrapped with a thermal insulation cotton sleeve 31, and the outer wall of each return ring box 30 is fixedly connected to a discharge pipe 34. An electric valve 35 is provided inside each discharge pipe 34. By presetting the above components, the liquid water extracted into the equipment can be stored in a corresponding return ring box 30 in turn, and the thermal insulation cotton sleeve 31 can effectively resist the influence of external cold air on the internal temperature of the return ring box 30, avoid ice formation in the return ring box 30, and ensure that the liquid water can be discharged through the discharge pipe 34.

[0039] according to Figure 3 and Figure 5 As shown, the input end of each pump body assembly 28 is fixedly connected to a group of first delivery hoses 32, the liquid inlet end of each first delivery hose 32 respectively penetrates the outer wall of a corresponding external connector 26 and is connected to the interior of the external connector 26, and the output end of each pump body assembly 28 is fixedly connected to a group of second delivery hoses 33, the discharge end of each second delivery hose 33 respectively penetrates the outer wall of a corresponding return ring box 30 and is connected to the interior of the return ring box 30.

[0040] according to Figure 2 and Figure 7 As shown, an assembly base 36 is fixedly installed on the outer wall of the middle barrel 1, and an electrical control box 37 is fixedly installed on the bottom of the assembly base 36. The electrical control box 37 is connected to the internal wiring of the equipment. By presetting the above components, a plurality of electrical control modules are arranged in the electrical control box 37 to control the reciprocating movement of the equipment in the wellbore, and accurately control the operation of a corresponding electrically adjustable high-resistance heating plate 17 and the extraction process of liquid water according to the signals obtained from related components.

[0041] according to Figure 5 and Figure 7 As shown, an inner ring frame 38 is fixedly installed on the inner surface wall of the middle cylinder body 1, and a metal ring sleeve 39 is fixedly installed on the inner surface wall of the inner ring frame 38. A filter plate 40 is embedded inside the metal ring sleeve 39. By presetting the above components, since there is a large cavity inside the middle cylinder body 1, it can be ensured that the airflow will not be blocked. When the airflow crosses to the inside of the filter plate 40, the dust filtering can be maximized to reduce the pollution of the external air.

[0042] according to Figure 3 and Figure 5As shown, a second built-in support plate 41 is fixedly installed inside each U-shaped associated frame 2, a group of second positioning sleeves 42 is fixedly installed inside each second built-in support plate 41, an electric push rod 43 is fixedly inserted into the inner surface wall of each second positioning sleeve 42, and the shaft end of each group of electric push rods 43 is fixedly inserted into the inside of a corresponding load-bearing bracket 6.

[0043] The effect achieved by the entire device is: the device body is placed inside the wellbore, each group of electric push rods 43 is opened synchronously, so that the inner axis slowly extends outward and acts on the load-bearing bracket 6, and the movable connection between the path slide 3 and the T-shaped slide 4 is utilized to push each hollow arc sleeve 7 and its connected parts to expand outward synchronously until each independent roller 23 fully contacts the inner wall of the wellbore, thereby completing the fixation of the device body.

[0044] During the cruising stage, the operation of the equipment is controlled by the relevant modules in the electrical control box 37. After each cruising time is reached, each drive component 22 is synchronously turned on and acts on each connected independent roller 23, driving the equipment body to reciprocate in the wellbore.

[0045] During the de-icing stage, when an ice layer appears on the inner wall of the wellbore during the movement of the equipment, part of the hollow arc sleeve 7 will be blocked, hindering the normal movement of the equipment. However, the contact arc plate 44 in the corresponding hollow arc sleeve 7 is in contact with the ice layer. By utilizing the movable connectivity between the limit slide 8 and the contact arc plate 44 as well as the first positioning sleeve 12 and the metal slide rod 13, the part of the contact arc plate 44 is retracted into the corresponding limit slide 8. At the same time, the part of the active spring 14 is in a compressed state, and the end of each contact arc plate 44 can fully contact the corresponding induction sealing plate 9. The generated induction signals are quickly introduced into the relevant modules in the electrical control box 37 by a group of information lines 11 and the wiring inside the equipment, and the number and position of the pre-opened hollow arc sleeve 7 are determined, and the opening of the corresponding independent power supply 18 is controlled. The energy is continuously introduced into a connected electrically adjustable high-resistance heating plate 17 by the transmission wire 19, and the surface temperature of each electrically adjustable high-resistance heating plate 17 is gradually increased to start melting the ice layer.

[0046] During the extraction stage, the melted liquid water is assisted by the guide strips on the surface of the electrically adjustable high-resistance heating plate 17 and gathered at the adsorption holes 24. The relevant modules of the electrical control box 37 control the opening of the pump assembly 28 at the corresponding position, so that a large adsorption force is generated at the adsorption holes 24 on each electrically adjustable high-resistance heating plate 17 at the corresponding position, and the liquid water is continuously extracted. The liquid water is then transferred to the connected return ring box 30 by the first delivery hose 32 and the second delivery hose 33. When part of the ice layer melts, part of the contact arc plate 44 loses its obstruction. The reaction force generated by the active spring 14 at the connection is used to quickly reset the part of the contact arc plate 44 retracted into the limit slide 8, ensuring that the end of the limit slide 8 can quickly separate from the induction sealing plate 9. After the signal is disconnected, the electrical control box 37 controls the closing of each electrical component in turn. After the equipment has been used for a period of time, it is taken out from one end of the wellbore, and the electric valve 35 is opened, and the release of the retained liquid water in the return ring box 30 is completed by the discharge pipe 34.

[0047] Although the present invention has been described in detail with reference to the aforementioned embodiments, it is still possible for those skilled in the art to modify the technical solutions described in the aforementioned embodiments, or to make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A high-efficiency mine return air indirect shaft antifreeze device, characterized by: The invention comprises a central cylinder body (1), wherein the outer wall of the central cylinder body (1) is fixedly provided with a plurality of U-shaped associated frames (2), and the plurality of U-shaped associated frames (2) are equidistantly distributed on the outer wall of the central cylinder body (1), each of the U-shaped associated frames (2) is provided with two path slideways (3), each of the path slideways (3) is provided with a T-shaped slideway (4) movably inserted therein, the outer wall of each T-shaped slideway (4) is fixedly provided with a reinforcing outer plate (5), a load-bearing bracket (6) is fixedly provided between the tops of each two reinforcing outer plates (5), the outer wall of each load-bearing bracket (6) is fixedly provided with a hollow arc sleeve (7), each of the outer wall of each hollow arc sleeve (7) is provided with a limited slideway (8) on both sides, each of the limited slideways (8) is provided with a contact arc plate (44) movably inserted therein, and each of the inner walls of each hollow arc sleeve (7) is fixedly provided with an induction sealing plate ( 9), fan-shaped slots (16) are provided on both sides of the outer wall of each hollow arc-shaped sleeve (7), and an electrically adjustable high-resistance heating plate (17) is fixedly connected inside each fan-shaped slot (16), and an independent power supply (18) is fixedly installed on both sides of the inner wall of each hollow arc-shaped sleeve (7), and the wiring end of each independent power supply (18) is fixedly connected to a group of transmission wires (19), and the output end of each group of transmission wires (19) is respectively connected to the wiring end of a corresponding electrically adjustable high-resistance heating plate (17), and a first built-in support plate (20) is fixedly installed inside each hollow arc-shaped sleeve (7), and a group of locking frames (21) are fixedly installed inside each first built-in support plate (20), and two driving components (22) are fixedly installed inside each locking frame (21), and the shaft end of each driving component (22) is fixedly sleeved with an independent roller (23); A group of first positioning sleeves (12) are provided on both sides of the outer wall of each hollow arc-shaped sleeve (7), a metal slide bar (13) is movably inserted inside each first positioning sleeve (12), a linkage assembly (15) is fixedly sleeved on the outer wall of each metal slide bar (13), each group of linkage assemblies (15) is respectively connected to a corresponding contact arc plate (44), an active spring (14) is fixedly installed between the opposite side of each first positioning sleeve (12) and the linkage assembly (15), and each active spring (14) is movably sleeved on the outer wall of a corresponding metal slide bar (13).

2. The high-efficiency mine return air indirect shaft antifreeze device according to claim 1 is characterized in that: The outer wall of each induction sealing plate (9) is fixedly connected to a wiring base (10), the interior of each wiring base (10) is fixedly connected to a group of information wires (11), and the output end of each group of information wires (11) is respectively connected to the internal wiring of a corresponding hollow arc sleeve (7).

3. The high-efficiency mine return air indirect shaft antifreeze device according to claim 1 is characterized in that: Each electrically adjustable high-resistance heating plate (17) is provided with an adsorption hole (24) inside, and a group of locking seats (25) are fixedly installed on both sides of the inner wall of each hollow arc-shaped sleeve (7), and an external connector (26) is fixedly installed inside each locking seat (25), and the number of each group of external connectors (26) is equal to the number of each group of adsorption holes (24), and the liquid inlet end of each external connector (26) is respectively connected to a corresponding adsorption hole (24), and the outer wall of each electrically adjustable high-resistance heating plate (17) is provided with a guide strip.

4. The high-efficiency mine return air indirect shaft antifreeze device according to claim 1 is characterized in that: Both sides of the outer wall of each of the first built-in support plates (20) are welded with grafting support plates (27), and a pump body assembly (28) is fixedly mounted on the top of each of the grafting support plates (27).

5. The high-efficiency mine return air indirect shaft antifreeze device according to claim 4 is characterized in that: Connecting ring frames (29) are fixedly mounted on both sides of the outer wall of the central cylinder body (1); a return ring box (30) is fixedly mounted on the outer wall of each connecting ring frame (29); the outer wall of each return ring box (30) is wrapped with a heat-insulating cotton sleeve (31); the outer wall of each return ring box (30) is fixedly connected to a discharge pipe (34); and an electric valve (35) is provided inside each discharge pipe (34).

6. The high-efficiency mine return air indirect shaft antifreeze device according to claim 5 is characterized in that: The input end of each pump body assembly (28) is fixedly connected to a group of first delivery hoses (32), the liquid inlet end of each first delivery hose (32) passes through the outer wall of a corresponding external connector (26) and is connected to the inside of the external connector (26), and the output end of each pump body assembly (28) is fixedly connected to a group of second delivery hoses (33), the liquid discharge end of each second delivery hose (33) passes through the outer wall of a corresponding return ring box (30) and is connected to the inside of the return ring box (30).

7. The high-efficiency mine return air indirect shaft antifreeze device according to claim 1 is characterized in that: An assembly base (36) is fixedly mounted on the outer wall of the central barrel (1), an electrical control box (37) is fixedly mounted on the bottom of the assembly base (36), and the electrical control box (37) is connected to the internal wiring of the equipment.

8. The high-efficiency mine return air indirect shaft antifreeze device according to claim 1 is characterized in that: An inner ring frame (38) is fixedly mounted on the inner surface wall of the central cylinder body (1), a metal ring sleeve (39) is fixedly mounted on the inner surface wall of the inner ring frame (38), and a filter plate (40) is embedded inside the metal ring sleeve (39).

9. The high-efficiency mine return air indirect shaft antifreeze device according to claim 1 is characterized in that: A second built-in support plate (41) is fixedly installed inside each of the U-shaped associated frames (2), a group of second positioning sleeves (42) is fixedly installed inside each of the second built-in support plates (41), an electric push rod (43) is fixedly inserted into the inner surface wall of each of the second positioning sleeves (42), and the shaft ends of each group of the electric push rods (43) are fixedly inserted into the interior of a corresponding load-bearing bracket (6).

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