Mine wellhead antifreeze system and antifreeze method

Abstract

The present invention relates to a mine wellhead antifreeze system and antifreeze method, the system comprising: a heating unit, which is laid in a location prone to ice or snow accumulation, and is provided with a temperature probe inside the heating unit; an electric control unit, which is used to provide power to the heating unit, and which includes multiple controllable power supply circuits; a temperature acquisition module, which is used to acquire temperature data; a data transceiver module equipped with a communication module, which is electrically connected to the temperature acquisition module and is used to obtain the current heating temperature of the heating unit, and is electrically connected to the electric control unit and is used to send on-off control instructions for the controllable power supply circuit, and the communication module is used to communicate with a remote end. The present invention directly heats the location prone to ice formation by converting electrical energy into thermal energy, effectively preventing the occurrence of ice formation, and can melt ice or snow in time, with good antifreeze effect, high ice and snow removal efficiency, low heat loss, high power saving ability, simple installation, good load-bearing performance, long service life, and the ability to be remotely monitored, thereby improving mine safety.

Description

Technical Field

[0001] The present invention relates to the technical field of mine ground antifreeze, in particular to a mine wellhead antifreeze system and an antifreeze method.

[0002] The mine wellhead antifreeze system and antifreeze method can be applied to the ground of a flat wellhead and / or the ground of an inclined wellhead. Background Art

[0003] A mine is the collective name for the shafts, tunnels, chambers, equipment, surface buildings, and structures that form the production system of an underground mineral deposit (such as a coal mine). Inclined shafts, vertical shafts, and horizontal tunnels in underground mine development are sometimes also referred to as mines.

[0004] The adit is a horizontal tunnel with one end leading to a surface exit, on which a transport line is laid. The tunnel has a slope of 3%-7% to ensure the operation of trains and underground water flows.

[0005] The inclined shaft refers to a main tunnel whose axis is inclined at a certain angle to the horizontal plane. Its function is the same as that of the vertical shaft, which is used to lift ore, waste rock, personnel, equipment and materials.

[0006] The flat cave is also called the air intake flat cave, and the inclined shaft is also called the air intake inclined shaft. They can be collectively referred to as air intake shafts.

[0007] Winter temperatures are low across much of northern my country, particularly in frigid regions like North China and Northeast China. When temperatures drop below zero, water vapor in the downhole airflow at flat and inclined wellheads (referring to flat and inclined wellheads) easily condenses into ice as it encounters cold air as it passes through the wellhead's roof. This long-term icicle formation can threaten the safety of vehicles and personnel entering and exiting the wellhead. Therefore, wellhead antifreeze (especially antifreeze of the wellhead's ground) is a crucial guarantee for safe winter production in coal mines. To address this issue, coal mines have dedicated teams responsible for de-icing and ensuring safety, consuming significant manpower and resources.

[0008] To prevent ice from forming at the wellheads of flat and inclined shafts in winter and to ensure production and personnel safety, according to the requirements of the "Coal Industry Mine Design Code", each air intake shaft should be equipped with a wellhead antifreeze device to heat the air entering the wellhead, that is, to use hot air antifreeze equipment as the wellhead antifreeze device. Existing hot air antifreeze equipment includes but is not limited to: coal-fired boilers, gas boilers (gas heating boilers), electric boilers (electric heating boilers) or electric hot air blowers (electric heating blowers), among which:

[0009] The rated evaporation capacity of coal-fired boilers is usually 4 tons to 10 tons, which is converted into electrical power of 2800 kW to 7000 kW.

[0010] Gas boiler installed rated evaporation capacity: usually 4 tons to 10 tons, converted into electrical power 2800 kW to 7000 kW;

[0011] Electric boiler installed power: usually 1400 kW - 7000 kW,

[0012] Electric hot air blower installed power: usually 1400 kW - 7000 kW.

[0013] This shows that the existing hot air antifreeze equipment has large installed power and huge energy consumption.

[0014] Due to the huge power of electric boilers, the transformers installed in mining areas and mines need to be expanded, and the investment in equipment and infrastructure is large.

[0015] Gas boilers require the laying of gas pipelines as a foundation, but many mines are located in remote mountainous areas and usually do not have the conditions for laying gas pipelines. Even if there are conditions for laying gas pipelines, huge investments are required in laying pipelines and replacing equipment.

[0016] The information disclosed in this background technology section is only intended to deepen the understanding of the overall background technology of the present invention and should not be regarded as an admission or any form of suggestion that the information constitutes the prior art already known to those skilled in the art. Summary of the Invention

[0017] In response to the defects in the prior art, the purpose of the present invention is to provide a mine wellhead antifreeze system and antifreeze method. By converting electrical energy into thermal energy, the parts prone to ice formation are directly heated, effectively preventing the occurrence of ice formation, and melting ice or snow in time. It has good antifreeze effect, high ice and snow removal efficiency, low heat loss, high power saving ability, simple installation, good load-bearing performance, long service life, and the ability of remote monitoring, thereby improving mine safety.

[0018] In order to achieve the above purpose, the technical solution adopted by the present invention is:

[0019] A mine wellhead antifreeze system, characterized by comprising:

[0020] The heating unit 1 is laid at a location at the mine entrance that is prone to ice formation or snow accumulation. A temperature probe is provided inside the heating unit 1 to collect the heating temperature of the heating unit 1;

[0021] The electric control unit 2 is connected to the heating unit 1 through a cable and is used to provide power to the heating unit 1. The electric control unit 2 includes multiple controllable power supply circuits;

[0022] The controllable power supply circuit is controlled to be on and off by the data transceiver module 4;

[0023] The temperature acquisition module 3 is connected to the temperature probe in the heating unit 1 through a cable and is used to collect temperature data obtained by the temperature probe;

[0024] The data transceiver module 4 equipped with the communication module 5 is electrically connected to the temperature acquisition module 3 for obtaining the current heating temperature of the heating unit 1 and is electrically connected to the electronic control unit 2 for sending controllable power supply circuit on-off control instructions.

[0025] The communication module 5 is used to communicate with a remote end and receive on / off control instructions for a controllable power supply circuit.

[0026] On the basis of the above technical solution, the heating unit 1 is a heating pad;

[0027] Two or more heating units 1 are arranged side by side along the length or width direction and directly laid at the mine entrance where ice or snow is likely to accumulate;

[0028] The heating unit 1 directly heats the areas prone to ice formation or snow accumulation by converting electrical energy into thermal energy.

[0029] On the basis of the above technical solution, a plurality of heating units 1 form a group and are connected to the same controllable power supply circuit to uniformly control the heating temperature of the heating units 1 in the group;

[0030] The grouping method is any of the following:

[0031] Several heating units 1 in the same group are heating units 1 adjacent to each other on the left and right;

[0032] Several heating units 1 in the same group are heating units 1 spaced apart on the left and right;

[0033] The outermost heating unit 1 is individually connected to a controllable power supply circuit, and the remaining heating units 1 are grouped as a group and connected to the same controllable power supply circuit.

[0034] On the basis of the above technical solution, the data transceiver module 4 includes a CPU submodule, which generates a controllable power supply circuit on-off control instruction and a controllable power supply circuit electrical signal change control instruction based on the temperature obtained by the temperature acquisition module 3 and compared with the preset temperature;

[0035] The controllable power supply circuit on-off control instruction is used for switching control of power supply circuit on or off. The electronic control unit 2 adjusts the power supply circuit on or off according to the controllable power supply circuit on-off control instruction.

[0036] The controllable power supply circuit electrical signal change control instruction is used to adjust the voltage or current signal of the power supply circuit. The difference in voltage or current determines the increase or decrease in the heating temperature of the heating unit 1. The electronic control unit 2 adjusts the voltage or current signal of the power supply circuit according to the controllable power supply circuit electrical signal change control instruction.

[0037] On the basis of the above technical solution, it also includes a host computer 6, which communicates remotely with the data transceiver module 4, is used to remotely control the on and off of each controllable power supply circuit, and is used to remotely obtain the heating temperature of the heating unit 1;

[0038] The host computer 6 is connected to the Internet of Things to achieve cloud-based intelligent management and control.

[0039] On the basis of the above technical solution, a plurality of mounting through holes are provided on the heating unit 1, and fasteners pass through the through holes to fix the heating unit 1 on the ground;

[0040] The through holes are distributed at equal intervals along the circumferential edge of the heating unit 1;

[0041] The fastener can be a steel chisel, or a bolt and nut, or a U-bolt.

[0042] On the basis of the above technical solution, the heating unit 1 includes:

[0043] The heating core layer is used to generate heat when powered;

[0044] Buffer flame retardant layer, used for flame retardancy and load-bearing buffering;

[0045] The heating core layer is a graphite heating plate; the buffer flame retardant layer is flame retardant rubber.

[0046] On the basis of the above technical solution, a tension-enhanced composite layer is provided between the heating core layer and the buffer flame-retardant layer.

[0047] The tension-enhanced composite layer comprises: a polyester canvas layer and a heat-resistant rubber layer stacked on top of each other;

[0048] The heating core layer includes several heating basic units.

[0049] Multiple heating basic units constitute a heating zone.

[0050] Each heating zone is connected to the same controllable power supply circuit of the electronic control unit, and the heating temperature of the heating zone is uniformly controlled by the data transceiver module 4.

[0051] A mine wellhead antifreeze method, characterized by adopting any one of the mine wellhead antifreeze systems described above,

[0052] Place the heating unit 1 directly on the part of the mine mouth that is prone to ice or snow accumulation.

[0053] The heating unit 1 converts electrical energy into thermal energy to directly heat the areas prone to ice formation or snow accumulation, thereby preventing ice from forming.

[0054] On the basis of the above technical solution, the power on or off or the voltage signal or current signal of the heating unit 1 is controlled by the electronic control unit 2, and the voltage signal or current signal is used to adjust the heating temperature of the heating unit 1;

[0055] The temperature data in the heating unit 1 is collected through the temperature collection module 3;

[0056] The data transceiver module 4 generates an on-off control instruction for the controllable power supply circuit and an electric signal change control instruction for the controllable power supply circuit based on the temperature acquired by the temperature acquisition module 3 and compared with the preset temperature.

[0057] The mine wellhead antifreeze system and antifreeze method described in the present invention directly heat the parts prone to ice formation by converting electrical energy into thermal energy, effectively preventing the occurrence of ice formation, and can melt ice or snow in time. It has good antifreeze effect, high ice and snow removal efficiency, low heat loss, high power saving ability, simple installation, good load-bearing performance, long service life, and the ability of remote monitoring, thereby improving mine safety.

[0058] The mine wellhead antifreeze system and antifreeze method described in the present invention use clean energy (electricity) and are suitable for mines where production is affected by ice or snow accumulation. The heating units in the mine wellhead antifreeze system are directly laid on the parts of the wellhead that are prone to ice formation. For example, the heating units in the mine wellhead antifreeze system are directly laid on the parts of the wellhead road surface that are frozen (or the parts of the wellhead road surface that are snowed on), which can effectively prevent the road surface from freezing (or prevent snow from accumulating on the road surface). Because the ground of the wellhead that is prone to ice formation is directly heated, the antifreeze effect is good, the deicing efficiency is high, and the power saving effect is good.

[0059] The ice-prone areas particularly refer to the ground at flat mine openings and / or inclined mine openings, which are also typically prone to snow accumulation. The ice-prone areas described above are not intended to limit the use of the heating unit in the mine opening antifreeze system to only those locations. These locations are merely exemplary. Based on the actual production and living needs of the mine, other ice-prone areas or areas prone to snow accumulation, as long as they meet safety requirements, may also be used with the antifreeze system and antifreeze method of the present invention.

[0060] The mine wellhead antifreeze system and antifreeze method described in the present invention can connect the system to the Internet of Things to realize cloud-based intelligent management and control, facilitate the collection and management of mine antifreeze information, and make regulation more efficient and convenient. BRIEF DESCRIPTION OF THE DRAWINGS

[0061] The present invention has the following accompanying drawings:

[0062] The accompanying drawings are provided for a better understanding of the present invention and are not intended to limit the present invention.

[0063] Figure 1 A schematic structural diagram of a first embodiment of the mine wellhead antifreeze system according to the present invention. DETAILED DESCRIPTION

[0064] The present invention will be described in further detail below with reference to the accompanying drawings. The detailed description, which is provided for illustrative purposes only and includes various details to aid understanding of the embodiments of the present invention, should be considered merely exemplary. Therefore, those skilled in the art will recognize that various changes and modifications may be made to the embodiments described herein without departing from the scope and spirit of the present invention. Similarly, for the sake of clarity and conciseness, descriptions of well-known functions and structures are omitted from the following description.

[0065] like Figure 1 As shown, the mine wellhead antifreeze system of the present invention includes:

[0066] The heating unit 1 is laid at a location at the mine entrance that is prone to ice formation or snow accumulation. A temperature probe is provided inside the heating unit 1 to collect the heating temperature of the heating unit 1;

[0067] As one of the optional embodiments, the heating unit 1 is a heating pad;

[0068] As one of the optional implementation schemes, two or more heating units 1 are arranged side by side along the length direction or width direction and directly laid at the part of the mine entrance that is prone to ice formation or snow accumulation;

[0069] Figure 1 In the embodiment shown, there are five heating units 1 arranged side by side along its length and laid directly at the mine entrance where ice or snow is likely to accumulate;

[0070] As one of the preferred solutions, at least three heating units 1 are laid;

[0071] As one of the optional embodiments, the heating unit 1 directly heats the area prone to ice formation or snow accumulation by converting electrical energy into thermal energy;

[0072] The electric control unit 2 is connected to the heating unit 1 through a cable and is used to provide power to the heating unit 1. The electric control unit 2 includes multiple controllable power supply circuits;

[0073] As one of the optional implementation schemes, the electronic control unit 2 is an electronic control box;

[0074] As one of the optional implementation schemes, the controllable power supply circuit is controlled to be on and off by the data transceiver module 4; the voltage value or current value of the controllable power supply circuit can also be controlled by the data transceiver module 4;

[0075] As one of the optional implementation schemes, several heating units 1 form a group and are connected to the same controllable power supply circuit to uniformly control the heating temperature of the heating units 1 in the group;

[0076] The specific grouping method of forming a group is any one of the following:

[0077] Several heating units 1 in the same group are adjacent heating units 1 on the left and right. For example, if there are six heating units 1, the 1st, 2nd and 3rd heating units 1 are the first group, and the 4th, 5th and 6th heating units 1 are the second group.

[0078] Or several heating units 1 in the same group are heating units 1 spaced apart from each other. For example, if there are six heating units 1, the 1st, 3rd and 5th heating units 1 are the first group, and the 2nd, 4th and 6th heating units 1 are the second group.

[0079] After the heating units 1 are grouped, the control cost can be reduced, the control efficiency can be improved, and the requirements of power saving and stable heating can be taken into account;

[0080] As a preferred solution, the outermost heating unit 1 is individually connected to a controllable power supply circuit, and the remaining heating units 1 are grouped together and connected to the same controllable power supply circuit;

[0081] The outermost heating unit 1 has a relatively large heat consumption, so it is connected to a controllable power supply circuit and controlled separately to better ensure stable heating. This solution requires at least three controllable power supply circuits.

[0082] The temperature acquisition module 3 is connected to the temperature probe in the heating unit 1 through a cable and is used to collect temperature data obtained by the temperature probe;

[0083] As one of the optional implementation schemes, the temperature acquisition module 3 is used to connect multiple temperature probes, and the temperature probes are digital temperature probes;

[0084] The multiple channels can be 16 channels or 24 channels;

[0085] The data transceiver module 4 equipped with the communication module 5 is electrically connected to the temperature acquisition module 3 for obtaining the current heating temperature of the heating unit 1 and is electrically connected to the electronic control unit 2 for sending controllable power supply circuit on-off control instructions.

[0086] The communication module 5 is used to communicate with the remote end and receive the controllable power supply circuit on-off control instruction, that is: the remote end sends the controllable power supply circuit on-off control instruction to the communication module 5, and after the communication module 5 receives it, it sends the instruction through the data transceiver module 4.

[0087] The data transceiver module 4 includes a CPU submodule, which generates a controllable power supply circuit on-off control instruction and a controllable power supply circuit electrical signal change control instruction based on the temperature obtained by the temperature acquisition module 3 and compared with a preset temperature.

[0088] A data transceiver module 4 equipped with a communication module 5 is provided to realize local control + remote control, with high antifreeze efficiency and easy control of power consumption;

[0089] The controllable power supply circuit on-off control instruction is used for switching control of powering on or off the power supply circuit.

[0090] The controllable power supply circuit electrical signal change control instruction is used to adjust the voltage or current signal of the power supply circuit. The difference in voltage or current determines the increase or decrease in the heating temperature of the heating unit 1.

[0091] The electronic control unit 2 adjusts the power supply circuit to be powered on or off according to the on-off control instruction of the controllable power supply circuit.

[0092] The electronic control unit 2 adjusts the voltage or current signal of the power supply circuit according to the controllable power supply circuit electrical signal change control instruction.

[0093] On the basis of the above technical solution, it also includes a host computer 6 that remotely communicates with the data transceiver module 4 to remotely control the on and off of each controllable power supply circuit and to remotely obtain the heating temperature of the heating unit 1.

[0094] As one of the optional implementation schemes, the host computer 6 is connected to the Internet of Things to achieve cloud-based intelligent management and control.

[0095] On the basis of the above technical solution, a plurality of mounting through holes are provided on the heating unit 1, and fasteners pass through the through holes to fix the heating unit 1 on the ground. The fasteners can be steel chisels.

[0096] Taking the heating pad as the heating unit 1 as an example, the sharp end of the steel drill (drill head) is inserted into the ground after passing through the through hole. The diameter of the other end of the steel drill (drill tail) is larger than the drill rod, forming a disc-shaped drill tail. The heating pad is fixed by the drill tail to prevent the heating pad from moving on the ground.

[0097] As one of the optional implementation schemes, the steel drill can be replaced by a bolt and a nut, the nut is fixed (buried) in the ground, the bolt passes through the through hole and is screwed with the nut to fix the heating pad to prevent the heating pad from moving on the ground. The bolt can also be fixed (buried) in the ground.

[0098] As an alternative embodiment, adjacent heating pads can be secured to the ground using U-shaped bolts inserted through adjacent through-holes on the two heating pads to prevent them from moving. The use of U-shaped bolts can reduce the number of fasteners used and ensure that adjacent heating pads do not move and are securely fixed. If only one heating pad is used, the U-shaped bolt can also be used to secure it.

[0099] As one of the optional embodiments, the through holes are distributed at equal intervals along the circumferential edge of the heating unit 1 .

[0100] On the basis of the above technical solution, the heating unit 1 includes:

[0101] The heating core layer is used to generate heat when powered;

[0102] Buffer flame retardant layer, used for flame retardancy and load-bearing buffering.

[0103] As one of the optional implementation schemes, the heating core layer is a graphite heating plate; the buffer flame retardant layer is flame retardant rubber.

[0104] The heating unit 1 is in a pad shape as a whole, so the heating unit 1 can be called a heating pad.

[0105] On the basis of the above technical solution, a tension-enhanced composite layer is provided between the heating core layer and the buffer flame-retardant layer.

[0106] The tension-enhanced composite layer comprises a polyester canvas layer and a heat-resistant rubber layer stacked one above the other.

[0107] On the basis of the above technical solution, the heating core layer includes several heating basic units.

[0108] Multiple heating basic units constitute a heating zone.

[0109] Each heating zone is connected to the same controllable power supply circuit of the electronic control unit, and the heating temperature of the heating zone is uniformly controlled by the data transceiver module 4.

[0110] The present invention further provides a mine wellhead antifreeze method, comprising the following steps: directly placing the heating unit 1 at a part of the mine wellhead that is prone to ice formation or snow accumulation,

[0111] The heating unit 1 converts electrical energy into thermal energy to directly heat the areas prone to ice formation or snow accumulation, thereby preventing ice from forming.

[0112] On the basis of the above technical solution, the power on or off or the voltage signal or current signal of the heating unit 1 is controlled by the electronic control unit 2, and the voltage signal or current signal is used to adjust the heating temperature of the heating unit 1;

[0113] The temperature data in the heating unit 1 is collected through the temperature collection module 3;

[0114] The data transceiver module 4 generates an on-off control instruction for the controllable power supply circuit and an electric signal change control instruction for the controllable power supply circuit based on the temperature acquired by the temperature acquisition module 3 and compared with the preset temperature.

[0115] The contents not described in detail in this specification belong to the prior art known to those skilled in the art.

[0116] The above description is only a preferred embodiment of the present invention, and the protection scope of the present invention is not limited to the above embodiment. Any equivalent modifications or changes made by those skilled in the art based on the contents disclosed in the present invention should be included in the protection scope recorded in the claims.

Claims

1. A mine wellhead antifreeze system, characterized in that: include: A heating unit (1) is laid at a mine wellhead where ice is easily formed or snow is easily accumulated. A temperature probe is provided inside the heating unit (1) for collecting the heating temperature of the heating unit (1); the area where ice is easily formed or snow is easily accumulated refers to the ground surface of a flat wellhead and / or the ground surface of an inclined wellhead; The heating unit (1) is a heating pad, comprising: The heating core layer is used to generate heat when powered; Buffer flame retardant layer, used for flame retardancy and load-bearing buffering; The heating core layer is a graphite electric heater; the buffer flame retardant layer is flame retardant rubber; A tension-enhanced composite layer is provided between the heating core layer and the buffer flame-retardant layer, and the tension-enhanced composite layer comprises a polyester canvas layer and a heat-resistant rubber layer stacked on top of each other; Two or more heating units (1) are arranged side by side along the length or width direction thereof and are directly laid at a part of the mine opening that is prone to ice formation or snow accumulation; The heating unit (1) directly heats the area prone to ice formation or snow accumulation by converting electrical energy into thermal energy; A plurality of heating units (1) form a group and are connected to the same controllable power supply circuit to uniformly control the heating temperature of the heating units (1) in the group; The grouping method is any of the following: The plurality of heating units (1) in the same group are heating units (1) adjacent to each other on the left and right; The plurality of heating units (1) in the same group are heating units (1) spaced apart from each other. The outermost heating unit (1) is individually connected to a controllable power supply circuit, and the remaining heating units (1) are grouped as a group and connected to the same controllable power supply circuit; A plurality of mounting through holes are provided on the heating unit (1), and fasteners pass through the through holes to fix the heating unit (1) on the ground; The through holes are distributed at equal intervals along the circumferential edge of the heating unit (1); The fastener is a steel chisel, or a bolt and nut, or a U-bolt; An electric control unit (2) is connected to the heating unit (1) via a cable and is used to provide power to the heating unit (1), wherein the electric control unit (2) includes a plurality of controllable power supply circuits; The controllable power supply circuit is controlled to be on and off by a data transceiver module (4); A temperature acquisition module (3) is connected to the temperature probe in the heating unit (1) via a cable and is used to collect temperature data obtained by the temperature probe; A data transceiver module (4) equipped with a communication module (5) is electrically connected to the temperature acquisition module (3) for obtaining the current heating temperature of the heating unit (1), and is electrically connected to the electric control unit (2) for sending a controllable power supply circuit on-off control instruction. The communication module (5) is used for communicating with a remote end and receiving on / off control instructions for a controllable power supply circuit.

2. The mine wellhead antifreeze system according to claim 1, characterized in that: The data transceiver module (4) includes a CPU submodule, which generates a controllable power supply circuit on-off control instruction and a controllable power supply circuit electrical signal change control instruction based on the temperature acquired by the temperature acquisition module (3) and compared with a preset temperature; The controllable power supply circuit on-off control instruction is used for switching control of powering on or off the power supply circuit. The electric control unit (2) adjusts the power supply circuit on or off according to the controllable power supply circuit on-off control instruction. The controllable power supply circuit electrical signal change control instruction is used to adjust the voltage or current signal of the power supply circuit. The difference in voltage or current determines the increase or decrease in the heating temperature of the heating unit (1). The electric control unit (2) adjusts the voltage or current signal of the power supply circuit according to the controllable power supply circuit electrical signal change control instruction.

3. The mine wellhead antifreeze system according to claim 1, characterized in that: It also includes a host computer (6) that remotely communicates with the data transceiver module (4) and is used to remotely control the on and off of each controllable power supply circuit and to remotely obtain the heating temperature of the heating unit (1); The host computer (6) is connected to the Internet of Things to achieve cloud-based intelligent management and control.

4. The mine wellhead antifreeze system according to claim 1, characterized in that: The heating core layer includes several heating basic units. Multiple heating basic units constitute a heating zone. Each heating zone is connected to the same controllable power supply circuit of the electric control unit, and the heating temperature of the heating zone is uniformly controlled through the data transceiver module (4).

5. A mine wellhead antifreeze method, characterized in that: Adopting the mine wellhead antifreeze system according to any one of claims 1 to 4, The heating unit (1) is directly placed at the part of the mine entrance that is prone to ice formation or snow accumulation. The heating unit (1) directly heats areas prone to ice formation or snow accumulation by converting electrical energy into thermal energy, thereby preventing ice from forming.

6. The mine wellhead antifreeze method according to claim 5, characterized in that: Controlling the power on or off of the heating unit (1) or the voltage signal or current signal through the electric control unit (2), wherein the voltage signal or current signal is used to adjust the heating temperature of the heating unit (1); The temperature data in the heating unit (1) is collected through the temperature collection module (3); The data transceiver module (4) generates a controllable power supply circuit on-off control instruction and a controllable power supply circuit electric signal change control instruction based on the temperature acquired by the temperature acquisition module (3) and compared with a preset temperature.

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