Underground work station for underground roadway heat damage treatment and mineral sample physical and chemical analysis

Abstract

An underground work station for underground roadway heat damage treatment and mineral sample physical and chemical analysis comprises a movable trailer chassis, a lifting type protective shell, a power box, a cooling mechanism, a physical and chemical analysis mechanism, a rest and office facility and a mineral sample collection mechanical arm and can be flexibly arranged and rapidly deployed in an underground roadway. Integration of underground roadway heat damage treatment and physical and chemical analysis of mineral samples is achieved, and physical and chemical analysis of the mineral samples is achieved while heat damage treatment is conducted. And compared with long-distance conveying of the cooling medium, energy consumption can be reduced, and delay and hysteresis of real-time adjustment of the underground temperature are avoided. In the heat damage treatment process, the sound fatigue influence of noise factors on underground miners is fully considered, the noise level is effectively reduced in the equipment operation process, and a relatively quiet operation environment is provided for the underground miners. Aiming at potential operation risks existing underground, environment monitoring and alarming functions are particularly added, and meanwhile, a place for resting, working and safety protection can be provided for underground operation personnel.

Description

Technical Field

[0001] The present invention belongs to the technical field of mining auxiliary equipment, and particularly relates to an underground workstation for underground roadway heat damage treatment and physical and chemical analysis of mineral samples. Background Art

[0002] With the continuous increase of the mining depth of mines, affected by factors such as heat dissipation from high-temperature surrounding rocks, air self-compression heat, heat dissipation from mechanical equipment, and oxidation heat, more and more mines are suffering from heat damage. Heat damage is one of the factors restricting the safe production of mines, which not only endangers the physical health of workers but also reduces labor productivity. Since underground roadways are usually located in the deep areas of mines, affected by geological structures and environments, the internal temperature is often higher than that of other roadways, and they have the characteristics of long and winding roadways, diverse and concentrated heat sources, difficult ventilation, and high humidity. Therefore, when heat damage occurs in a mine, in addition to affecting the health and safety of workers, the high-temperature environment will also exacerbate the physical exertion of workers. Therefore, in order to cool the tunneling face of the mine, the method of transporting refrigerant through pipelines is usually adopted. In addition, before mining, it is usually necessary to conduct physical and chemical analysis on mineral samples. However, limited by the insufficient underground conditions, the physical and chemical analysis of mineral samples generally needs to be carried out in the physical and chemical analysis workshop on the ground. Therefore, there is a lag in physical and chemical analysis.

[0003] The Chinese patent application with the publication number CN108087013A discloses a mine cooling and heat damage utilization system, which combines a centralized cooling system and a mine full-air volume system. A refrigeration station is centrally arranged on the ground, and the chilled water prepared by the refrigeration station is transported to the air cooler underground through pipelines to cool and dehumidify the underground air. However, this solution requires two pipelines to separately transport the chilled water to the air cooler underground and the air heat exchanger in the wellhead house, resulting in a more complex pipeline system and greater difficulty in maintenance and management. In addition, when transporting the cooling medium over a long distance, it will inevitably increase energy consumption, and there is also a certain delay and lag in the real-time adjustment of the underground temperature.

[0004] The Chinese patent application with the publication number CN117145579A discloses a mine geothermal cycle utilization and collaborative heat damage treatment system and method. The water on the ground is cooled by a cooling device and then enters the underground cold water tank, and is purified and sterilized by a condenser and a cooling device on the ground, and the cold air is transported to the mining face of the mine. However, the cooling device and the purification and sterilization device on the ground require additional energy, which will inevitably lead to an increase in energy consumption. In addition, when transporting the cooling air over a long distance, it will also increase the energy consumption, and there is also a certain delay and lag in the real-time adjustment of the underground temperature.

[0005] The Chinese patent application with the publication number CN102080564A discloses a method for preventing and controlling mine heat damage. It directly uses a high-efficiency refrigeration unit arranged above the well to cool a part of the air entering the mine, and the formed low-temperature air is transmitted underground through the existing mine ventilation system. However, the energy consumption of the high-efficiency refrigeration unit is large, and directly using the high-efficiency refrigeration unit for refrigeration will inevitably lead to an increase in energy consumption, thereby increasing the operating cost.

[0006] The Chinese patent application with the publication number CN112145218A discloses a system and method for controlling heat damage in an underground coal mining face. It isolates the heat transfer from the surrounding rock to the underground roadway through a heat insulation layer, and the refrigeration pipeline system relies on the original nitrogen injection pipeline, and reduces the temperature underground through a variable-frequency refrigeration device. However, the refrigeration unit and the nitrogen injection refrigeration method require a large amount of energy supply, which will inevitably lead to an increase in energy consumption, and at the same time, it will also increase the cost of refrigeration consumption.

[0007] The Chinese patent application with the publication number CN101949298A discloses a refrigeration and cooling device for coal mines underground. Through components such as PLC, sensors, and solenoid valves in the control system, multiple parameters of the device are monitored and controlled. The use of a semi-hermetic screw compressor can avoid refrigerant leakage. However, the screw compressor used in this solution will generate relatively large noise and vibration during operation, which will cause great acoustic fatigue effects on the surrounding environment and workers. In addition, screw compressors usually require a relatively large space for installation and operation, and their applicability in the underground space is poor.

[0008] The Chinese patent application with the publication number CN220539668U discloses an integrated movable local refrigeration and cooling device for underground mines. This device consists of a compressor, a condenser, an evaporator, etc. Although it can meet the cooling needs, it does not fully consider the limitation of the narrow space in the roadway, nor does it consider the impact of noise reduction. Moreover, this cooling device uses a sliding shoe type bracket, which is prone to problems when turning in the roadway, especially in narrow roadways, it may cause inability to turn.

[0009] The Chinese patent application with the publication number CN106640172A discloses an integrated device for controlling mine heat damage and preventing and extinguishing fires underground. It uses liquid nitrogen or liquid carbon dioxide to meet the cooling and fire extinguishing requirements. However, the storage and transportation of liquid nitrogen or liquid carbon dioxide require strict low-temperature conditions and high-pressure equipment, and will face technical and safety challenges in the complex underground environment. Once the equipment fails or leaks, it may cause serious safety accidents. In addition, liquid nitrogen or liquid carbon dioxide will quickly vaporize during the release process, which will cause the local environmental temperature to drop suddenly, and may instead have an adverse impact on miners and equipment, even causing frostbite accidents or equipment damage.

[0010] The Chinese patent application with the publication number CN117167071A discloses a mobile refrigeration system for high-temperature roadways in underground metal mines. Although this solution meets good mobility and simplicity of operation, in a high-temperature and high-humidity environment, the heat exchange efficiency and refrigeration effect of its evaporator are not ideal enough to achieve the expected cooling effect.

[0011] The Chinese patent application with the publication number CN115217508A discloses a mobile refrigeration and cooling device and method. Although this solution meets good mobility and low operating costs, its isolation component needs to be fixed in the roadway, and the air barrier needs to be fixed to the ground. Therefore, there are problems such as complex installation steps, long construction time, and high construction difficulty.

[0012] In the academic article titled "Design of Downhole Cooling System for WBM Coal Mine in Indonesia", a ground centralized refrigeration and cooling system is disclosed. This solution sets up air coolers at the underground mining working face, realizes the connection between the ground refrigeration unit and the underground pipeline, forms a refrigeration cycle, and achieves downhole cooling. However, long-distance transmission will cause relatively large cold loss, thereby reducing the overall refrigeration efficiency of the system. In addition, due to the long-distance transmission involved in the system between the ground and the underground, the maintenance of pipelines and equipment is relatively complex, and in order to ensure the stable operation of the system, professional personnel are also required to conduct regular inspections and maintenance.

[0013] In the academic article titled "Ventilation, Refrigeration and Cooling Technology for High-Temperature Heat-Hazard Mines", a hierarchical cooling method combining full-air volume cooling at the wellhead and centralized cooling underground is disclosed. However, the hierarchical cooling adopted in this solution usually requires a large amount of energy, so there is a problem of high system energy consumption, and the chemical refrigerants used in the cooling process may also release harmful substances, which will thus have an impact on the safety and health of miners. Summary of the Invention

[0014] Aiming at the problems existing in the prior art, the present invention provides an underground workstation for underground roadway heat-hazard treatment and physical and chemical analysis of mineral samples. It can be flexibly arranged in underground roadways, realizes the functional integration of underground roadway heat-hazard treatment and physical and chemical analysis of mineral samples, can be quickly deployed to the underground areas where heat-hazard treatment is required, and can simultaneously realize the physical and chemical analysis of mineral samples. Compared with the long-distance transportation mode of the cooling medium, it can effectively reduce energy consumption, and at the same time effectively avoid the delay and hysteresis of real-time underground temperature adjustment. During the heat-hazard treatment process, the influence of noise factors on the acoustic fatigue of underground miners is fully considered, and the noise level is effectively reduced during the operation of the equipment, providing a relatively quiet working environment for underground miners. Aiming at the potential operation risks existing underground, an environmental monitoring and alarm function is particularly added, and at the same time, a place for rest, office and safety protection can be provided for underground operators.

[0015] To achieve the above object, the present invention adopts the following technical solution: An underground workstation for underground roadway heat hazard treatment and physical and chemical analysis of mineral samples, comprising a mobile trailer chassis, a lifting protective housing, a power supply box, a cooling mechanism, a physical and chemical analysis mechanism, rest and office facilities, and a mineral sample collection manipulator; the lifting protective housing is fixedly arranged above the mobile trailer chassis; the front half chamber of the lifting protective housing is set as a physical and chemical analysis room, and the physical and chemical analysis mechanism is arranged in the physical and chemical analysis room; the rear half chamber of the lifting protective housing is of a double-layer structure, the lower layer of the rear half chamber is a heat hazard treatment equipment room, the power supply box and the cooling mechanism are arranged side by side in the heat hazard treatment equipment room, the upper layer of the rear half chamber is a rest and office room, and the rest and office facilities are arranged in the rest and office room; the mineral sample collection manipulator is arranged above the mobile trailer chassis outside the front of the lifting protective housing.

[0016] The mobile trailer chassis includes a chassis support plate, mobile wheels, a trailer hitch, and stabilizing support feet; the mobile wheels are symmetrically distributed on the left and right sides of the chassis support plate; the trailer hitch is arranged at the front end of the chassis support plate; the stabilizing support feet are evenly arranged below the chassis support plate.

[0017] The lifting protective housing adopts a rectangular frame structure, comprising telescopic lifting columns, a housing top plate, a chamber partition plate, and side baffles; the telescopic lifting columns are vertically and fixedly installed on the chassis support plate, and the housing top plate is horizontally and fixedly installed at the top of the telescopic lifting columns; the chamber partition plate is horizontally and fixedly arranged between the heat hazard treatment equipment room and the rest room; side baffles are fixedly installed on the upper telescopic section of the telescopic lifting columns; side baffles are hingedly installed on the lower fixed section of the telescopic lifting columns to form an upward-opening structure, and a hydraulic support driving rod is arranged between the side baffle of the upward-opening structure and the lower fixed section of the telescopic lifting columns, one end of the hydraulic support driving rod is hinged to the side baffle, and the other end of the hydraulic support driving rod is hinged to the lower fixed section of the telescopic lifting columns.

[0018] The cooling mechanism includes a box body, an air filter, an air compressor, a heat exchanger, an expander, a circulating water chiller, a motor and a belt pulley transmission mechanism; the air filter, the air compressor, the heat exchanger, the expander, the circulating water chiller, the motor and the belt pulley transmission mechanism are all located inside the box body; the air inlet of the air filter is connected to the main mine roadway through an air inlet pipe, the air outlet of the air filter is connected to the air inlet of the air compressor, the air outlet of the air compressor is connected to the gas path inlet of the heat exchanger, the gas path outlet of the heat exchanger is connected to the air inlet of the expander, and the air outlet of the expander is connected to the underground heat hazard area; the water outlet of the circulating water chiller is connected to the water path inlet of the heat exchanger, the water inlet of the circulating water chiller is connected to the water path outlet of the heat exchanger, and the fan heat dissipation outlet of the circulating water chiller is connected to the main mine roadway through an exhaust pipe; the power output shaft of the motor is drivingly connected to the power input shaft of the air compressor through the belt pulley transmission mechanism.

[0019] A silencer is fixedly installed at the air outlet of the expander; the silencer is of an overall cylindrical structure, the cylinder body of the silencer is of a multi-layer structure, and each layer of the cylinder body is provided with sound absorption holes, and the sizes of the sound absorption holes on each layer of the cylinder body are different, and sound absorption composite materials are filled between adjacent cylinder bodies; a sound insulation cover is arranged on the top of the box body; the sound insulation cover is of a honeycomb structure, and sound absorption composite materials are filled inside the sound insulation cover; a vibration damping base is arranged at the bottom of the box body; the vibration damping base includes a vibration damping lower seat body and a vibration damping upper seat body, and the vibration damping upper seat body is fixedly installed above the vibration damping lower seat body; the vibration damping lower seat body is filled with a vibration damping sandwich panel, the core layer of the vibration damping sandwich panel is a rubber plate, both sides of the rubber plate are polyurethane skins, and the rubber plate and the polyurethane skin are fixedly bonded with epoxy resin; the vibration damping upper seat body is filled with damping vibration damping particles, a support steel plate is arranged above the damping vibration damping particles, and a foamed rubber for fireproof sealing is arranged above the support steel plate.

[0020] An environmental monitoring box is arranged inside the box body, and a temperature sensor, a humidity sensor, a gas concentration sensor and a buzzer alarm are respectively installed in the environmental monitoring box.

[0021] The physical and chemical analysis mechanism includes a console, a heater, a sample container, a container transfer gripper mechanism, a complete set of equipment for physical and chemical analysis and treatment of samples and a display screen; the heater and the container transfer gripper mechanism are arranged in parallel above the console; the sample container is used for containing mineral samples; the complete set of equipment for physical and chemical analysis and treatment of samples is arranged at the top of the container transfer gripper mechanism in a straight row manner; the display screen is arranged on a lifting protective housing above the complete set of equipment for physical and chemical analysis and treatment of samples.

[0022] The rest and work facility includes a folding bed, a work desk, an office computer, and a water dispenser; the folding bed and the work desk are arranged in parallel, the office computer is set on the work desk; the water dispenser is set on the side of the head of the folding bed; lighting lamps are provided at the head of the folding bed and above the work desk.

[0023] Advantages of the present invention:

[0024] The underground workstation for underground roadway heat damage control and physical and chemical analysis of mineral samples of the present invention can be flexibly arranged in the underground roadway, realizing the functional integration of underground roadway heat damage control and physical and chemical analysis of mineral samples, and can be quickly deployed to the underground area where heat damage control is required, and can simultaneously realize the physical and chemical analysis of mineral samples. Compared with the long-distance transportation method of the cooling medium, it can effectively reduce energy consumption, and at the same time effectively avoid the delay and hysteresis of real-time underground temperature adjustment. During the heat damage control process, the influence of noise factors on the acoustic fatigue of underground miners is fully considered, and the noise level is effectively reduced during the operation of the equipment, providing a relatively quiet working environment for underground miners. In view of the potential operation risks existing underground, an environmental monitoring and alarm function is particularly added, and at the same time, a place for rest, work and safety protection can be provided for underground operators. Description of the drawings

[0025] Figure 1 is a schematic structural diagram (view angle one) of the underground workstation for underground roadway heat damage control and physical and chemical analysis of mineral samples of the present invention (part of the side baffle is not shown);

[0026] Figure 2 is a schematic structural diagram (view angle one) of the underground workstation for underground roadway heat damage control and physical and chemical analysis of mineral samples of the present invention (the housing top plate is not shown);

[0027] Figure 3 is a schematic structural diagram (view angle two) of the underground workstation for underground roadway heat damage control and physical and chemical analysis of mineral samples of the present invention (part of the side baffle is not shown);

[0028] Figure 4 is an internal schematic diagram of the cooling mechanism of the present invention;

[0029] Figure 5 is a schematic structural diagram of the silencer of the present invention;

[0030] Figure 6 is a schematic structural diagram of the sound insulation cover of the present invention;

[0031] Figure 7 is a partial cross-sectional view of the vibration damping base of the present invention;

[0032] Figure 8 is a schematic structural diagram of the physical and chemical analysis mechanism of the present invention;

[0033] In the figure, I is a mobile trailer chassis, II is a lifting protective housing, III is a power supply box, IV is a cooling mechanism, V is a physical and chemical analysis mechanism, VI is a rest and office facility, VII is a mineral sample collection manipulator, 1 is a chassis support plate, 2 is a moving wheel, 3 is a trailer hitch, 4 is a stabilizing support leg, 5 is a telescopic lifting column, 6 is a housing top plate, 7 is a chamber partition board, 8 is a side baffle, 9 is a hydraulic support drive rod, 10 is a box body, 11 is an air filter, 12 is an air compressor, 13 is a heat exchanger, 14 is an expander, 15 is a circulating water cooler, 16 is an electric motor, 17 is a pulley drive mechanism, 18 is a silencer, 19 is a sound insulation cover, 20 is a vibration damping base, 21 is an upper vibration damping seat body, 22 is a lower vibration damping seat body, 23 is an environmental monitoring box, 24 is a console, 25 is a heater, 26 is a sample container, 27 is a container transfer gripper mechanism, 28 is a complete set of equipment for physical and chemical analysis of samples, 29 is a display screen, 30 is a folding bed, 31 is a desk, 32 is an office computer, 33 is a water dispenser. Specific embodiments

[0034] The present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0035] As Figures 1 to 8 shown, an underground workstation for heat damage control in underground roadways and physical and chemical analysis of mineral samples includes a mobile trailer chassis I, a lifting protective housing II, a power supply box III, a cooling mechanism IV, a physical and chemical analysis mechanism V, a rest and office facility VI, and a mineral sample collection manipulator VII; the lifting protective housing II is fixedly arranged above the mobile trailer chassis I; the front half chamber of the lifting protective housing II is set as a physical and chemical analysis chamber, and the physical and chemical analysis mechanism V is arranged in the physical and chemical analysis chamber; the rear half chamber of the lifting protective housing II is a double-layer structure, the lower layer of the rear half chamber is a heat damage control equipment chamber, the power supply box III and the cooling mechanism IV are arranged side by side in the heat damage control equipment chamber, the upper layer of the rear half chamber is a rest and office, and the rest and office facility VI is arranged in the rest and office; the mineral sample collection manipulator VII is arranged above the mobile trailer chassis I outside the front of the lifting protective housing II.

[0036] The mobile trailer chassis I includes a chassis support plate 1, moving wheels 2, a trailer hitch 3, and stabilizing support legs 4; the moving wheels 2 are symmetrically distributed on the left and right sides of the chassis support plate 1; the trailer hitch 3 is arranged at the front end of the chassis support plate 1; the stabilizing support legs 4 are evenly arranged under the chassis support plate 1.

[0037] The lifting protective housing II adopts a rectangular frame structure, including telescopic lifting columns 5, a housing top plate 6, a chamber partition plate 7 and side baffles 8; the telescopic lifting columns 5 are vertically and fixedly installed on the chassis support plate 1, and the housing top plate 6 is horizontally and fixedly installed at the top of the telescopic lifting columns 5; the chamber partition plate 7 is horizontally fixedly arranged between the heat damage treatment equipment chamber and the rest room; side baffles 8 are fixedly installed on the upper telescopic section of the telescopic lifting columns 5; side baffles 8 are hingedly installed on the lower fixed section of the telescopic lifting columns 5 to form an upward-opening structure, and a hydraulic support driving rod 9 is arranged between the side baffle 8 of the upward-opening structure and the lower fixed section of the telescopic lifting columns 5. One end of the hydraulic support driving rod 9 is hinged to the side baffle 8, and the other end of the hydraulic support driving rod 9 is hinged to the lower fixed section of the telescopic lifting columns 5.

[0038] The cooling mechanism IV includes a box body 10, an air filter 11, an air compressor 12, a heat exchanger 13, an expander 14, a circulating water cooler 15, a motor 16 and a pulley transmission mechanism 17; the air filter 11, the air compressor 12, the heat exchanger 13, the expander 14, the circulating water cooler 15, the motor 16 and the pulley transmission mechanism 17 are all located inside the box body 10; the air inlet of the air filter 11 is connected to the main mine roadway through an intake pipe, the air outlet of the air filter 11 is connected to the air inlet of the air compressor 12, the air outlet of the air compressor 12 is connected to the gas path inlet of the heat exchanger 13, the gas path outlet of the heat exchanger 13 is connected to the air inlet of the expander 14, and the air outlet of the expander 14 is connected to the underground heat damage area; the water outlet of the circulating water cooler 15 is connected to the water path inlet of the heat exchanger 13, the water inlet of the circulating water cooler 15 is connected to the water path outlet of the heat exchanger 13, and the fan heat dissipation outlet of the circulating water cooler 15 is connected to the main mine roadway through an exhaust pipe; the power output shaft of the motor 16 is drivingly connected to the power input shaft of the air compressor 12 through the pulley transmission mechanism 17. In this embodiment, the intake pipe and the exhaust pipe used in the cooling mechanism IV are both made of telescopic and bendable flexible pipe bodies.

[0039] A silencer 18 is fixedly installed at the air outlet of the expander 14; the silencer 18 is of an overall cylindrical structure, and the cylinder body of the silencer 18 is of a multi-layer structure, and sound-absorbing holes are provided on each layer of the cylinder body, and the sizes of the sound-absorbing holes on each layer of the cylinder body are different, and sound-absorbing composite materials are filled between adjacent cylinder bodies; a sound insulation cover 19 is provided on the top of the box body 10; the sound insulation cover 19 is of a honeycomb structure, and sound-absorbing composite materials are filled inside the sound insulation cover 19; a vibration damping base 20 is provided at the bottom of the box body 10; the vibration damping base 20 includes a vibration damping upper seat body 21 and a vibration damping lower seat body 22, and the vibration damping upper seat body 21 is fixedly installed above the vibration damping lower seat body 22; the inside of the vibration damping lower seat body 22 is filled with a vibration damping sandwich panel, the core layer of the vibration damping sandwich panel is a rubber plate, the two sides of the rubber plate are polyurethane skins, and the rubber plate and the polyurethane skin are fixedly bonded with epoxy resin; the inside of the vibration damping upper seat body 21 is filled with damping vibration damping particles, a support steel plate is provided above the damping vibration damping particles, and a foamed rubber for fireproof sealing is provided above the support steel plate.

[0040] In this embodiment, the cylinder body of the silencer 18 has three layers, and the sizes of the sound-absorbing holes on the three layers of the cylinder body are the smallest in the inner layer and the largest in the outer layer. Through the cooperation of the sound-absorbing holes and the sound-absorbing composite materials, the absorption of noises in different frequency bands can be realized, so as to reduce the noise level of the exhaust gas during the cooling process in the underground heat hazard area. The top plate of the box body 10 is completely covered by the sound insulation cover 19, which can fully suppress the radiation of the noise inside the box body 10 to the outside of the box body 10.

[0041] An environmental monitoring box 23 is provided inside the box body 10, and a temperature sensor, a humidity sensor, a gas concentration sensor and a buzzer alarm are respectively installed in the environmental monitoring box 23.

[0042] The physical and chemical analysis mechanism V includes a control console 24, a heater 25, a sample container 26, a container transfer gripper mechanism 27, a complete set of equipment for physical and chemical analysis and treatment of samples 28 and a display screen 29; the heater 25 and the container transfer gripper mechanism 27 are arranged in parallel above the control console 24; the sample container 26 is used for holding mineral samples; the complete set of equipment for physical and chemical analysis and treatment of samples 28 is arranged in a straight row on the top of the container transfer gripper mechanism 27; the display screen 29 is arranged on a lifting protective housing II above the complete set of equipment for physical and chemical analysis and treatment of samples 28.

[0043] The rest and office facility VI includes a folding bed 30, a desk 31, an office computer 32 and a water dispenser 33; the folding bed 30 and the desk 31 are arranged in parallel, the office computer 32 is arranged on the desk 31; the water dispenser 33 is arranged on the side of the head of the folding bed 30; lighting lamps are provided at the head of the folding bed 30 and above the desk 31.

[0044] The following describes the first use process of the present invention in conjunction with the accompanying drawings:

[0045] After the underground heat hazard area and the corresponding mineral sample collection area are selected, first, the whole of the present invention is moved to the selected area in a towed form by an underground engineering vehicle to achieve flexible layout and rapid deployment of the equipment. At the same time, the mobile towed chassis I of the present invention is fixed to the roadway ground through the stabilizing support feet 4.

[0046] After the present invention is deployed in place, first stretch the intake pipe and the exhaust pipe used in the cooling mechanism IV so that the intake port of the intake pipe and the exhaust port of the exhaust pipe both extend into the main mine roadway. It should be noted that in order to avoid the air inhaled by the intake port of the intake pipe being affected by the hot air discharged from the exhaust port of the exhaust pipe, the intake port of the intake pipe should be upstream of the ventilation of the main mine roadway, and at the same time, the exhaust port of the exhaust pipe should be downstream of the ventilation of the main mine roadway.

[0047] After the intake pipe and the exhaust pipe are arranged in place, start the cooling mechanism IV. The motor 16 drives the air compressor 12 to operate through the belt pulley transmission mechanism 17, and the circulating water cooler 15 continuously provides cooling water for the water circuit of the heat exchanger 13.

[0048] With the start of the cooling mechanism IV, the air in the main mine roadway is sucked into the intake pipe under negative pressure, and then enters the air compressor 12 after being filtered by the air filter 11. The air compressor 12 converts the air into a high-temperature and high-pressure state. Then, the high-temperature and high-pressure air enters the heat exchanger 13 to exchange heat with the cooling water in the water circuit, and becomes a high-pressure and normal-temperature state after discharging from the heat exchanger 13. Then, the high-pressure and normal-temperature air enters the expander 14, and the expander 14 converts the air into an atmospheric-pressure and low-temperature state. Finally, the atmospheric-pressure and low-temperature air will be discharged into the underground heat hazard area after being silenced by the silencer 18, realizing the cooling of the underground heat hazard area.

[0049] When the cooling water in the water circuit of the heat exchanger 13 completes the heat exchange with the high-temperature and high-pressure air, the temperature of the cooling water will rise. Then, the heated cooling water will flow through the cooling fan of the circulating water cooler 15, and the cooling fan will air-cool the cooling water. The hot air generated by the air cooling enters the exhaust pipe through the fan heat dissipation port, and finally is discharged into the main mine roadway by the exhaust pipe, and then is discharged outside the well along with the ventilation of the main mine roadway.

[0050] During the operation of the cooling mechanism IV, the vibration generated by it can be reduced by the damping sandwich panel and the damping vibration reduction particles in the damping base 20. The vibration noise is also further reduced through the vibration reduction process.

[0051] During the cooling process in the underground heat hazard area, the temperature sensor and humidity sensor in the environmental monitoring box 23 will monitor the temperature and humidity in the underground heat hazard area in real time, and dynamically adjust the operating power of the air compressor 12 according to the temperature and humidity monitoring results, so that the temperature and humidity in the underground heat hazard area are always maintained within a comfortable range. In addition, the temperature and humidity data can be displayed in real time on the office computer 32 of the rest and office facility VI.

[0052] When it is necessary to carry out the physical and chemical analysis of mineral samples, the mineral sample collection manipulator VII can be started first. The mineral sample collection manipulator VII transfers the mineral samples collected on site to the sample container 26 of the physical and chemical analysis mechanism V. Subsequently, the complete set of equipment 28 for sample physical and chemical analysis and the heater 25 are enabled as required according to the physical and chemical analysis procedures. The container transfer claw mechanism 27 is responsible for the position movement of the sample container 26 between the complete set of equipment 28 for sample physical and chemical analysis and the heater 25. The obtained physical and chemical analysis data can be displayed in real time on the display screen 29.

[0053] When the staff enter the rest office, the unfolded folding bed 30 can be used as an office seat, and data processing and analysis can be carried out through the office computer 32 on the office desk 31. At the same time, external liaison and communication can also be carried out through the office computer 32. After work, you can also rest on the unfolded folding bed 30, and the water dispenser 33 provides water supply.

[0054] During the underground operation, if the gas concentration data detected by the gas concentration sensor in the environmental monitoring box 23 exceeds the set safety threshold, the buzzer alarm will sound synchronously to prompt the underground operators of the safety risk, so that the underground operators can take timely precautions.

[0055] During the underground operation, if a sudden rock burst causes a collapse accident of the roadway roof rock fall, in order to reduce the risk caused by the rock fall to the underground operators, the operators can withdraw into the lifting protective shell II in time, and at the same time immediately start the hydraulic support drive rod 9 to turn the lateral baffle 8 of the upward-opening structure from the vertical state to the horizontal state, so as to form an extended temporary safety area below the lateral baffle 8, so that more underground operators can take shelter. When the rock fall process stops with the end of the release of the rock burst, the rock fall area can be evacuated.

[0056] The solutions in the embodiments are not intended to limit the protection scope of the present invention. All equivalent implementations or changes made without departing from the present invention are included in the protection scope of the present invention.

Claims

1. An underground workstation for heat damage treatment in underground tunnels and physical and chemical analysis of mineral samples, characterized by: It includes a mobile trailer chassis, a lifting protective shell, a power box, a cooling mechanism, a physical and chemical analysis mechanism, rest and office facilities and a mineral sample collection manipulator; the lifting protective shell is fixedly arranged above the mobile trailer chassis; the front half chamber of the lifting protective shell is set as a physical and chemical analysis chamber, and the physical and chemical analysis mechanism is arranged in the physical and chemical analysis chamber; the rear half chamber of the lifting protective shell is a double-layer structure, the lower layer of the rear half chamber is a heat damage control equipment room, the power box and the cooling mechanism are arranged in parallel in the heat damage control equipment room, the upper layer of the rear half chamber is a rest office, and the rest and office facilities are arranged in the rest office; the mineral sample collection manipulator is arranged above the mobile trailer chassis outside the front of the lifting protective shell.

2. An underground workstation for underground tunnel heat damage treatment and mineral sample physical and chemical analysis according to claim 1, characterized in that: The mobile trailer chassis includes a chassis support plate, moving wheels, a trailer frame and stabilizing legs; the moving wheels are symmetrically distributed on the left and right sides of the chassis support plate; the trailer frame is arranged at the front end of the chassis support plate; the stabilizing legs are evenly distributed below the chassis support plate.

3. An underground workstation for underground tunnel heat damage treatment and mineral sample physical and chemical analysis according to claim 2, characterized in that: The lifting protective shell adopts a rectangular frame structure, including a telescopic lifting column, a shell top plate, a room partition and a lateral baffle; the telescopic lifting column is vertically fixed on the chassis support plate, and the shell top plate is horizontally fixed on the top of the telescopic lifting column; the room partition is horizontally fixed between the heat damage control equipment room and the lounge; the lateral baffle is fixedly installed on the upper telescopic section of the telescopic lifting column; the lateral baffle is hingedly installed on the lower fixed section of the telescopic lifting column to form an upward flip-up structure, and a hydraulic support driving rod is arranged between the lateral baffle of the upward flip-up structure and the lower fixed section of the telescopic lifting column, one end of the hydraulic support driving rod is hinged to the lateral baffle, and the other end of the hydraulic support driving rod is hinged to the lower fixed section of the telescopic lifting column.

4. The underground workstation for underground tunnel heat damage treatment and mineral sample physical and chemical analysis according to claim 1, characterized in that: The cooling mechanism includes a casing, an air filter, an air compressor, a heat exchanger, an expander, a circulating water cooler, an electric motor and a pulley transmission mechanism; the air filter, the air compressor, the heat exchanger, the expander, the circulating water cooler, the electric motor and the pulley transmission mechanism are all located inside the casing; the air inlet of the air filter is connected to the main tunnel of the mine through an air inlet pipe, the air outlet of the air filter is connected to the air inlet of the air compressor, the air outlet of the air compressor is connected to the air path inlet of the heat exchanger, the air path outlet of the heat exchanger is connected to the air inlet of the expander, and the air outlet of the expander is connected to the underground heat damage area; the water outlet of the circulating water cooler is connected to the water path inlet of the heat exchanger, the water inlet of the circulating water cooler is connected to the water path outlet of the heat exchanger, and the fan heat dissipation outlet of the circulating water cooler is connected to the main tunnel of the mine through an exhaust pipe; the power output shaft of the electric motor is connected to the power input shaft of the air compressor through a pulley transmission mechanism.

5. The underground workstation for underground tunnel heat damage treatment and mineral sample physical and chemical analysis according to claim 4, characterized in that: A silencer is fixedly installed at the air outlet of the expander; the silencer adopts a cylindrical structure as a whole, the cylinder of the silencer is a multi-layer structure, and each layer of the cylinder is provided with a silencer hole, the size of the silencer holes on each layer of the cylinder is different, and sound-absorbing composite materials are filled between adjacent cylinders; a soundproof cover is arranged on the top of the box; the soundproof cover adopts a honeycomb structure, and the soundproof cover is filled with sound-absorbing composite materials; a vibration-damping base is arranged at the bottom of the box; the vibration-damping base includes a vibration-damping lower seat body and a vibration-damping upper seat body, and the vibration-damping upper seat body is fixedly installed above the vibration-damping lower seat body; the vibration-damping lower seat body is filled with a vibration-damping sandwich panel, the core layer of the vibration-damping sandwich panel is a rubber plate, and both sides of the rubber plate are polyurethane skins, and epoxy resin is fixedly bonded between the rubber plate and the polyurethane skin; the vibration-damping upper seat body is filled with damping vibration-damping particles, a supporting steel plate is arranged above the damping vibration-damping particles, and a foam rubber for fireproof sealing is arranged above the supporting steel plate.

6. The underground workstation for heat damage treatment in underground tunnels and physical and chemical analysis of mineral samples according to claim 4, characterized in that: An environment monitoring box is arranged inside the box body, and a temperature sensor, a humidity sensor, a gas concentration sensor and a buzzer alarm are respectively installed in the environment monitoring box.

7. The underground workstation for underground tunnel heat damage treatment and mineral sample physical and chemical analysis according to claim 1, characterized in that: The physical and chemical analysis mechanism includes a control console, a heater, a sample container, a container transfer gripper mechanism, a complete set of sample physical and chemical analysis and processing equipment, and a display screen; the heater and the container transfer gripper mechanism are arranged in parallel above the control console; the sample container is used to hold mineral samples; the complete set of sample physical and chemical analysis and processing equipment is arranged in a straight line on top of the container transfer gripper mechanism; the display screen is arranged on a lifting protective shell above the complete set of sample physical and chemical analysis and processing equipment.

8. The underground workstation for underground tunnel heat damage treatment and mineral sample physical and chemical analysis according to claim 1, characterized in that: The rest and office facilities include a folding bed, a desk, an office computer and a water dispenser; the folding bed and the desk are arranged side by side, and the office computer is arranged on the desk; the water dispenser is arranged on the side of the head of the folding bed; and lighting lamps are arranged at the head of the folding bed and above the desk.

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