Wellhead anti-icing device for mine vertical shaft
By setting up the heating system and the freezing device of the vibration device at the well well, it solves the problem of increased safety hazards and maintenance costs caused by the icing of the well in the well. Safe under the well.
Patent Information
- Application Number
- CN202411528349.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2024-10-30
- Publication Date
- 2025-01-21
AI Technical Summary
In northern regions, vertical shaft mining often fails to pulverize the concrete support on the well wall due to freezing in the wellhead in winter, affecting the life of the wellbore support structure, increasing maintenance costs, and posing safety hazards.
Design an anti-icing device for mining shafts, including a heating system, a heating system, a circulation system, a medium and a vibration device. The heating system is set on the well wall and provides heat source through the circulation system and heating system. The medium moves within the circulation system to absorb heat and heat the well wall. The vibration device is driven by the movement of the medium and generates vibration to prevent droplets and ice from crystallizing in the well. The walls are frozen.
It can effectively prevent the well wall from freezing, extend the service life of the well support structure, ensure the safety of underground workers and equipment, and reduce maintenance costs.
Smart Images
Figure CN119333147A_ABST
Abstract
Description
Technical Field
[0001] The invention relates to the technical field of mine antifreeze, in particular to an anti-icing device for a mine shaft opening. Background Art
[0002] A mine is a general term for the shafts, chambers, equipment, ground buildings and structures that form the production system of underground mineral deposits (such as coal mines). Vertical shaft mining refers to the mining method in which the main mining tunnels are vertical shafts. When the inclination of the ore body is greater than 45° or less than 15°, and the burial is deep, vertical shaft mining is often used. The vertical shaft is an important link in the entire mining production process. In the underground mining and mining process, it is mainly responsible for the lifting and lowering of personnel, waste rock, equipment and materials, and also serves as an air intake shaft and a safe exit.
[0003] As the main mining method for underground mineral resources, vertical shaft mining faces a major challenge in the winter in northern regions: ice at the wellhead. Ice at the wellhead is very harmful. Ice freezing and thawing will cause the wellhead concrete support to become powdery and ineffective, affecting the life of the shaft support structure and increasing maintenance costs. Ice shedding will endanger the safety of underground personnel and equipment, and the safety risk is relatively high.
[0004] Therefore, there is an urgent need for an anti-icing device for the shaft mouth to ensure production safety. Summary of the invention
[0005] The main purpose of the present invention is to provide an anti-icing device for a mine shaft opening to solve the above-mentioned problem.
[0006] To achieve the above-mentioned purpose, the present invention provides a mine shaft opening anti-icing device, comprising:
[0007] A heating system, wherein the heating system is arranged on the well wall and is used to heat the well wall;
[0008] A heating system, the heating system is used to provide a heat source to the heating system;
[0009] A circulation system, the circulation system being used to connect the heating system and the heat supply system;
[0010] A medium, the medium is arranged in the circulation system, the medium is used to absorb the heat of the heat source and circulate between the heating system and the heat supply system;
[0011] A vibration device, a part of which is arranged on the well wall, and another part of which extends into the circulation system. When the medium moves in the circulation system, the vibration device will be driven to vibrate.
[0012] Furthermore, the vibration device includes a vibration plate, a support, an eccentric wheel group and blades, the blades are arranged in the circulation system, the eccentric wheel group is arranged outside the circulation system, the eccentric wheel group and the blades are connected through a rotating shaft, one end of the support is rotatably connected to the eccentric wheel group, and the other end is fixedly connected to the vibration plate, the vibration plate is arranged on the well wall, and the curvature of the vibration plate is adapted to the curvature of the well wall.
[0013] Furthermore, the eccentric wheel group includes a main eccentric wheel and a secondary eccentric wheel, the main eccentric wheel is provided with a plurality of threaded holes at different positions, the secondary eccentric wheel is provided with a plurality of through holes corresponding to the threaded holes, and the threaded holes and the through holes are connected by bolts.
[0014] Further, the heating system includes a heat recovery device and a direct heating device, the heat recovery device is connected to the heating system through the circulation system, and the direct heating device is connected to the heating system through a heating pipeline;
[0015] The heat recovery device is used to recover the waste heat of mine water, the waste heat of exhaust air in the return air shaft or the heat of mine geothermal energy and transfer the heat to the medium.
[0016] Furthermore, the heating system includes a heat transfer unit, a temperature sensor and a controller; the heat transfer unit is arranged on the well wall, and the heat transfer unit is respectively connected to the circulation system and the heating pipeline, the temperature sensor is used to detect the temperature of the well wall and the medium, and the controller is used to control the connection and disconnection of the circulation system and the heating pipeline with the heat transfer unit.
[0017] Furthermore, the circulation system and the heating pipeline are connected to the heat transfer unit via a three-way solenoid valve, and the controller is electrically connected to the temperature sensor and the three-way solenoid valve.
[0018] Further, the heat transfer unit includes a main pipeline, a heat exchanger and a heating device; both ends of the main pipeline are respectively connected with a three-way solenoid valve, the head end of the main pipeline is respectively connected with the heating pipeline and the input end of the circulation system through the three-way solenoid valve, and the end of the main pipeline is respectively connected with the direct heating device and the output end of the circulation system through another three-way solenoid valve;
[0019] The heat exchanger is arranged on the main pipe, the low temperature input end and the low temperature output end of the heat exchanger are both connected to the main pipe, and the high temperature input end and the high temperature output end of the heat exchanger are both connected to the heating device.
[0020] Furthermore, the direct heating device is a coal-fired boiler, a gas boiler, an electric boiler or an electric heating fan, and the direct heating device provides hot air to the main pipeline, and the end of the main pipeline is connected to the outside world and the output end of the circulation system respectively through the three-way solenoid valve.
[0021] Furthermore, the heating system and the vibration device are provided in multiple groups, and the heating system and the vibration device are also arranged on the ground around the wellhead.
[0022] The present invention can heat and vibrate the well wall to prevent the well wall from freezing, thereby ensuring the service life of the well support and the safety of underground workers and equipment. BRIEF DESCRIPTION OF THE DRAWINGS
[0023] Figure 1 The present invention is an overall schematic diagram of an anti-icing device for a mine shaft opening.
[0024] Figure 2 The present invention is a schematic diagram of a vibration device of a mine shaft opening anti-icing device.
[0025] Among them, 1-vibration device; 11-vibration plate; 12-support; 13-blade; 14-main eccentric wheel; 15-secondary eccentric wheel; 2-heat recovery device; 3-direct heating device; 4-circulation system; 5-heating pipeline; 6-heat transfer unit; 61-main pipeline; 62-heat exchanger; 63-heating device. DETAILED DESCRIPTION
[0026] In order to achieve the above-mentioned purpose and effect, the technical means and structures adopted by the present invention are described in detail with reference to the accompanying drawings for the features and functions of the preferred embodiments of the present invention.
[0027] like Figure 1-2 As shown, the present invention provides a mine shaft opening anti-icing device, comprising:
[0028] A heating system, the heating system is arranged on the well wall for heating the well wall;
[0029] A heating system, which is used to provide heat source to the heating system;
[0030] A circulation system 4, the circulation system 4 is used to connect the heating system and the heat supply system;
[0031] The medium is arranged in the circulation system 4, and is used to absorb the heat from the heat source and circulate between the heating system and the heat supply system;
[0032] A vibration device 1, a part of which is arranged on the well wall, and another part of which extends into the circulation system 4. When the medium moves in the circulation system 4, the vibration device 1 will be driven to vibrate.
[0033] In specific use, the heating system can be provided with multiple devices and arranged at different positions of the wellhead and the well wall. The circulation system 4 connects the heating system and the heat supply system into a circulation pipeline. The medium in the circulation system moves in the circulation pipeline. The medium can be liquid or gas. When the medium moves to the heat supply system, the heat supply system will increase the temperature of the medium. The heated medium will continue to move to the heating system and transfer the temperature to the heating system. The heating system will radiate the heat transferred by the medium to the well wall to increase the well wall temperature, so as to avoid the well wall temperature from being too low and freezing. The cooled medium will continue to move back to the heating system for the next cycle, so as to continuously ensure the temperature of the well wall. When the medium moves, it will drive the vibration device 1 attached to the well wall to vibrate slightly. The vibration amplitude is very small but it will prevent the droplets attached to the well wall from freezing, and the droplets will be vibrated and separated from the well wall, further preventing the droplets from freezing on the well wall. At the same time, even if the droplets freeze slowly on the well wall, the vibration will break the ice crystals just formed, preventing the formation of large ice slush and causing safety hazards.
[0034] In another embodiment, the vibration device 1 includes a vibration plate 11, a support 12, an eccentric wheel group and blades 13. The blades 13 are arranged in the circulation system 4, and the eccentric wheel group is arranged outside the circulation system 4. The eccentric wheel group and the blades 13 are connected by a rotating shaft passing through the circulation system 4. One end of the support 12 is rotatably connected to the eccentric wheel group, and the other end is fixedly connected to the vibration plate 11. The vibration plate 11 is arranged on the well wall, and the curvature of the vibration plate 11 is adapted to the curvature of the well wall.
[0035] When the medium moves in the circulation system 4 , the medium drives the blades 13 to rotate, thereby driving the eccentric wheel group to rotate. The eccentric wheel group generates an exciting force when rotating, and transmits the exciting force to the vibration plate 11 through the support 12, causing the vibration plate 11 to vibrate.
[0036] Specifically, the eccentric wheel group includes a main eccentric wheel 14 and a secondary eccentric wheel 15. The main eccentric wheel 14 is provided with a plurality of threaded holes at different positions, and the secondary eccentric wheel 15 is provided with a plurality of through holes corresponding to the threaded holes. The staff can change the angle between the main eccentric wheel 14 and the secondary eccentric wheel 15 and screw the bolts into the corresponding threaded holes and through holes to fix the two, so as to change the magnitude of the vibration force of the vibration device 1.
[0037] In another embodiment, the heating system includes a heat recovery device 2 and a direct heating device 3, wherein the heat recovery device 2 is connected to the heating system through a circulation system 4, and the direct heating device 3 is connected to the heating system through a heating pipeline 5. Thus, when the outside temperature is too low and the heat provided by the heat recovery device 2 cannot meet the demand for heating the well wall, the direct heating device 3 can directly provide heat to the heating system to ensure that the well wall temperature is not lower than 2°.
[0038] The heat recovery device can be specifically used to recover the waste heat of mine water, the waste heat of exhaust air in the return air shaft or the heat of mine geothermal energy and transfer the heat to the medium.
[0039] In another embodiment, the heating system includes a heat transfer unit 6, a temperature sensor and a controller; the heat transfer unit 6 is arranged on the well wall for heating the well wall, the heat transfer unit 6 is connected to the circulation system 4 and the heating pipeline 5 through a three-way solenoid valve, the temperature sensor is used to detect the temperature of the well wall and the medium, and the controller is electrically connected to the temperature sensor and the three-way solenoid valve.
[0040] In the initial state, the heat transfer unit 6 is connected to the circulation system 4 through the three-way solenoid valve but not to the heating pipeline 5. When the temperature sensor detects that the temperature of the medium is too low to meet the required temperature of the well wall, the temperature sensor transmits a signal to the controller, and the controller controls the three-way solenoid valve to close the connection between the heat transfer unit 6 and the circulation system 4, and opens the connection with the heating pipeline 5. At this time, the direct heating device 3 starts to work and transfers heat to the heat transfer unit 6. The heat transfer unit 6 causes the well wall to continue to heat up. When the temperature sensor detects that the temperature of the well wall is too high, the controller controls the three-way solenoid valve to return to the initial state.
[0041] Specifically, the heat transfer unit 6 includes a main line 61, a heat exchanger 62 and a heating device 63; both ends of the main line 61 are connected to a three-way solenoid valve, the head end of the main line 61 is connected to the input end of the heating pipeline 5 and the circulation system 4 respectively through the three-way solenoid valve, and the end of the main line 61 is connected to the output end of the direct heating device 3 and the circulation system 4 respectively through another three-way solenoid valve; the heat exchanger 62 is arranged on the main line 61, the low-temperature input end and the low-temperature output end of the heat exchanger 62 are both connected to the main line 61, and the high-temperature input end and the high-temperature output end of the heat exchanger 62 are both connected to the heating device 63. At the same time, the impeller 13 of the vibration device 1 is arranged in the main line 61, so as to ensure that the vibration device 1 can play a role at all times.
[0042] In another embodiment, the direct heating device 3 is a coal-fired boiler, a gas boiler, an electric boiler or an electric heating fan, and the direct heating device 3 provides hot air to the main pipe 61, and the end of the main pipe 61 is connected to the outside and the output end of the circulation system 4 through a three-way solenoid valve. The main pipe 61 can discharge the hot air provided by the direct heating device 3 to the outside well wall, further accelerating the temperature rise speed of the well wall and improving the heating effect of the direct heating device 3.
[0043] In another embodiment, the heating system and the vibration device 1 are provided in multiple groups, and the heating system and the vibration device 1 are also provided on the ground around the wellhead, so as to heat the ground around the wellhead, prevent the ground from freezing, and prevent people and vehicles from slipping, thereby further ensuring safety.
[0044] The above descriptions are only preferred embodiments of the present invention, not all embodiments. Anyone should be aware that any structural changes made under the inspiration of the present invention, and any technical solutions that are the same or similar to the present invention, belong to the protection scope of the present invention.
Claims
1. A mine shaft anti-icing device, characterized in that: include: A heating system, wherein the heating system is arranged on the well wall and is used to heat the well wall; A heating system, the heating system is used to provide a heat source to the heating system; A circulation system (4), the circulation system (4) being used to connect the heating system and the heat supply system; A medium, the medium is arranged in the circulation system (4), the medium is used to absorb the heat of the heat source and circulate between the heating system and the heat supply system; A vibration device (1), wherein a portion of the vibration device (1) is arranged on the well wall, and another portion extends into the circulation system (4); when the medium moves in the circulation system (4), the vibration device (1) is driven to vibrate.
2. The anti-icing device for a mine shaft opening as claimed in claim 1, characterized in that: The vibration device (1) comprises a vibration plate (11), a support (12), an eccentric wheel group and a blade (13); the blade (13) is arranged in the circulation system (4); the eccentric wheel group is arranged outside the circulation system (4); the eccentric wheel group and the blade (13) are connected via a rotating shaft; one end of the support (12) is rotationally connected to the eccentric wheel group, and the other end is fixedly connected to the vibration plate (11); the vibration plate (11) is arranged on the well wall; and the curvature of the vibration plate (11) is adapted to the curvature of the well wall.
3. The anti-icing device for a mine shaft opening as claimed in claim 2, characterized in that: The eccentric wheel group comprises a main eccentric wheel (14) and a secondary eccentric wheel (15); the main eccentric wheel (14) is provided with a plurality of threaded holes at different positions; the secondary eccentric wheel (15) is provided with a plurality of through holes corresponding to the threaded holes; the threaded holes and the through holes are connected by bolts.
4. The anti-icing device for a mine shaft opening as claimed in claim 1, characterized in that: The heating system comprises a heat recovery device (2) and a direct heating device (3), wherein the heat recovery device (2) is connected to the heating system via the circulation system (4), and the direct heating device (3) is connected to the heating system via a heating pipeline (5); The heat recovery device is used to recover the waste heat of mine water, the waste heat of exhaust air in the return air shaft or the heat of mine geothermal energy and transfer the heat to the medium.
5. The anti-icing device for a mine shaft opening as claimed in claim 4, characterized in that: The heating system comprises a heat transfer unit (6), a temperature sensor and a controller; the heat transfer unit (6) is arranged on the well wall, the heat transfer unit (6) is connected to the circulation system (4) and the heating pipeline (5) respectively, the temperature sensor is used to detect the temperature of the well wall and the medium, and the controller is used to control the connection and disconnection of the circulation system (4) and the heating pipeline (5) with the heat transfer unit (6).
6. The anti-icing device for a mine shaft opening as claimed in claim 5, characterized in that: The circulation system (4) and the heat supply pipeline (5) are in communication with the heat transfer unit (6) via a three-way solenoid valve, and the controller is electrically connected to the temperature sensor and the three-way solenoid valve.
7. The anti-icing device for a mine shaft opening as claimed in claim 6, characterized in that: The heat transfer unit (6) comprises a main pipeline (61), a heat exchanger (62) and a heating device (63); the two ends of the main pipeline (61) are respectively connected to a three-way solenoid valve, the head end of the main pipeline (61) is respectively connected to the heating pipeline (5) and the input end of the circulation system (4) through the three-way solenoid valve, and the end of the main pipeline (61) is respectively connected to the direct heating device (3) and the output end of the circulation system (4) through another three-way solenoid valve; The heat exchanger (62) is arranged on the main pipeline (61); the low-temperature input end and the low-temperature output end of the heat exchanger (62) are both connected to the main pipeline (61); and the high-temperature input end and the high-temperature output end of the heat exchanger (62) are both connected to the heating device (63).
8. The anti-icing device for a mine shaft opening as claimed in claim 7, characterized in that: The direct heating device (3) is a coal-fired boiler, a gas-fired boiler, an electric boiler or an electric heating fan. The direct heating device (3) provides hot air to the main pipeline (61). The end of the main pipeline (61) is connected to the outside and the output end of the circulation system (4) respectively through the three-way solenoid valve.
9. The anti-icing device for a mine shaft opening as claimed in claim 1, characterized in that: The heating system and the vibration device (1) are arranged in multiple groups, and the heating system and the vibration device (1) are also arranged on the ground around the wellhead.