Refrigerating and cooling device under mine

Abstract

The invention belongs to the field of heat damage treatment, and particularly relates to an underground mine refrigerating and cooling device which comprises a connecting pipe, a circulating water pipe and a refrigerating and cooling unit, and the refrigerating and cooling unit comprises a refrigerating and cooling assembly, a cooling water inlet formed in the refrigerating and cooling assembly and a circulating water outlet formed in the refrigerating and cooling assembly. The multiple sets of refrigeration cooling units are arranged, and the refrigeration cooling units are attached to an inner cavity of the mine and play a role in supporting the mine. The connecting pipes are arranged at the cooling water inlet and the circulating water outlet; according to the mine cooling device, cooling water is matched with the supporting block and the cooling and drying assembly, so that the temperature in a mine is reduced, meanwhile, water vapor in air in the mine can be condensed and discharged, and the cooling effect is improved. And the water content in the air is reduced.

Description

Technical Field

[0001] The invention relates to the field of heat damage management, in particular to a refrigeration and temperature reduction device in a mine. Background Art

[0002] During the gold mining process, rock drilling, blasting, ore loading and other production links will generate dust, which mainly exists in the form of ore dust. In addition, the air moisture content in the gold mine is usually high, and the relative humidity of the air in the mine generally reaches 80% to 90%, and can reach 100% in tunnels with large water inflow. As the mining depth continues to deepen, the temperature and humidity in the mine will continue to increase, thus forming heat damage, seriously affecting the working environment of workers, reducing work efficiency and increasing the risk of safety accidents; and the high humidity environment will accelerate the corrosion of metal parts of refrigeration equipment, shorten the service life of the equipment, and reduce the heat dissipation effect of the condenser in the refrigeration equipment. Summary of the invention

[0003] In view of the fact that in the above-mentioned prior art, as the mining depth continues to increase, the temperature and humidity in the mine will continue to increase, thus causing heat damage, seriously affecting the working environment of the workers, reducing work efficiency and increasing the risk of safety accidents, and the high humidity environment will accelerate the corrosion of metal parts of the refrigeration equipment, shorten the service life of the equipment, and reduce the heat dissipation effect of the condenser in the refrigeration equipment, the present invention is proposed.

[0004] Therefore, the object of the present invention is to provide a refrigeration and temperature reduction device for underground mines.

[0005] In order to solve the above technical problems, the present invention provides the following technical solutions: a refrigeration and cooling device in a mine, including a connecting pipe and a circulating water pipe, and also including a refrigeration and cooling unit, the refrigeration and cooling unit including a refrigeration and cooling component, a cooling water inlet arranged on the refrigeration and cooling component, and a circulating water outlet arranged on the refrigeration and cooling component, the refrigeration and cooling unit is provided with multiple groups, the refrigeration and cooling unit is in contact with the inner cavity of the mine, and the refrigeration and cooling unit also plays a role in supporting the mine; the connecting pipe is arranged at the cooling water inlet and the circulating water outlet; the circulating water pipe is arranged on the circulating water outlet.

[0006] Furthermore, the refrigeration and cooling component includes a support block, a cooling and drying component arranged on the support block, and a protection rod arranged on the support block.

[0007] Furthermore, the support blocks are of split design, and the support blocks are overall arched after being assembled and spliced. The support blocks are connected by flanges and are provided with sealing rings; the support blocks are fixed to the inner wall of the mine cave by anchor rods.

[0008] Furthermore, a cooling water flow cavity is provided in the support block, and heat exchange fins are provided on the cooling water flow cavity; the cooling water flow cavity is connected with the cooling water inlet and the circulating water outlet.

[0009] Furthermore, the cooling water inlet, the circulating water outlet, the connecting pipe and the circulating water pipe are all connected via flanges; and the cooling water inlet and the circulating water outlet are both provided with closed valves.

[0010] Furthermore, one end of the circulating water pipe and the outer cooling water inlet are fixedly connected to a ground cooling tower through a water pipe, and a water pump is provided on the ground cooling tower.

[0011] Furthermore, the cooling and drying component includes a condensation plate arranged on the support block, a guide block arranged on the condensation plate, a flow groove arranged on the condensation plate, and a drainage groove arranged on the condensation plate. The cooling and drying component is provided with multiple groups on the support block; the flow groove and the drainage groove are connected.

[0012] Furthermore, the flow grooves are configured in a shape that facilitates the diversion of condensed water; and the flow grooves are linearly arranged and distributed on the condensation plate.

[0013] Furthermore, a water guide trough is provided below the mine pit corresponding to the drainage trough.

[0014] Furthermore, the connecting pipe is provided with various lengths, and the length of the connecting pipe is gradually shortened according to the mining depth of the mine.

[0015] The beneficial effects of the underground refrigeration and cooling device of the present invention are as follows: the present invention uses the cooling water prepared by the ground cooling tower in conjunction with the support block and the cooling and drying component to reduce the temperature in the mine, while also being able to condense and discharge the water vapor in the mine air, thereby reducing the water content in the air. While significantly improving the working environment of the workers, it also provides protection for other refrigeration equipment in the mine and improves the refrigeration effect. At the same time, the distribution density of the refrigeration and cooling components can be customized according to the depth of the mine, thereby better controlling the refrigeration effect and air humidity in the mine. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the overall structure of the present invention.

[0017] Figure 2 It is a structural schematic diagram of the refrigeration and temperature reduction unit of the present invention.

[0018] Figure 3 for Figure 2 A magnified view of the structure in the middle.

[0019] Figure 4It is a front view structural schematic diagram of the refrigeration and cooling unit of the present invention.

[0020] Figure 5 It is a schematic diagram of the cross-sectional structure of the support block of the present invention.

[0021] Figure 6 It is a schematic diagram of the structure of the flow cell of the present invention.

[0022] In the figure: 100, refrigeration and cooling unit; 101, refrigeration and cooling component; 1011, support block; 1011-1, cooling water flow chamber; 1011-2, heat exchange fins; 1012, cooling and drying component; 1012-1, condensation plate; 1012-2, guide block; 1012-3, flow trough; 1012-4, drainage trough; 1013, protection rod; 102, cooling water inlet; 103, circulating water outlet; 200, connecting pipe; 300, circulating water pipe. DETAILED DESCRIPTION

[0023] The principles and features of the present invention are described below in conjunction with the accompanying drawings. The examples given are only used to explain the present invention and are not used to limit the scope of the present invention.

[0024] Example 1 Reference Figure 1-Figure 3 , which is the first embodiment of the present invention, and provides a refrigeration and cooling device for a mine, comprising a refrigeration and cooling unit 100, a connecting pipe 200 and a circulating water pipe 300. The refrigeration and cooling unit 100 is provided with multiple groups, and the refrigeration and cooling unit 100 is fitted with the inner cavity of the mine and plays a supporting role for the mine; the refrigeration and cooling unit 100 comprises a refrigeration and cooling component 101, a cooling water inlet 102 arranged on the refrigeration and cooling component 101, and a circulating water outlet 103 arranged on the refrigeration and cooling component 101. The refrigeration and cooling component 101 is used to cool the air in the mine and remove moisture from the air, and at the same time plays a supporting role for the mine. The cooling water inlet 102 is used for the inlet of cooling water entering the refrigeration and cooling component 101, and the circulating water outlet 103 is used for the outlet of the refrigeration and cooling component 101 after heat exchange; The connecting pipe 200 is provided at the cooling water inlet 102 and the circulating water outlet 103, and is used to connect the multiple groups of refrigeration and cooling components 101, thereby increasing the refrigeration area and improving the refrigeration and drying effects; The circulating water pipe 300 is arranged on the circulating water outlet 103, and is used to discharge the circulating water after heat exchange in the refrigeration and cooling component 101 out of the mine, so that the cooling water in the refrigeration and cooling component 101 can circulate, maintain circulating refrigeration and dry the air.

[0025] Among them, one end of the circulating water pipe 300 and the outer cooling water inlet 102 are fixedly connected to the ground cooling tower through a water pipe. A water pump is provided on the ground cooling tower. The cooling water generated by the ground cooling tower is driven by the water pump to enter the refrigeration and cooling component 101 to adjust the temperature and humidity in the mine.

[0026] In summary, as the mine is gradually mined, the temperature and humidity in the mine gradually increase. When the temperature and humidity in the mine reach a certain level, the environment in the mine is no longer suitable for workers to carry out mining operations. At this time, by setting up the refrigeration and cooling component 101 on the rock wall of the mine, the water pump enters the cooling water generated by the ground cooling tower into the refrigeration and cooling component 101 through the cooling water inlet 102, and the temperature and humidity in the mine are controlled. The circulating water after heat exchange is then discharged from the mine through the circulating water pipe 300, and the cooling water inlet 102 is used to circulate the cooling water in the mine through the refrigeration and cooling component 101 to reduce the air temperature and humidity in the mine. In conjunction with other refrigeration equipment, the temperature in the mine is maintained, so that workers are in a comfortable working environment, work efficiency is improved, and shutdowns caused by heat damage are reduced. By reducing the air humidity in the mine, the corrosion of metal parts of the refrigeration equipment in the mine can be reduced, and water vapor in the air can be prevented from condensing on the condenser of the refrigeration equipment, causing poor refrigeration effect.

[0027] Example 2 Reference Figure 1-Figure 4 , which is the second embodiment of the present invention, and is different from the previous embodiment in that: this embodiment can support the rock wall of the mine cave while reducing the heat transfer of the rock wall to the mine air. Compared with embodiment 1, further, the refrigeration and cooling component 101 includes a support block 1011, a cooling and drying component 1012 arranged on the support block 1011, and a protection rod 1013 arranged on the support block 1011. The support block 1011 is used to support the flow of cooling water, the cooling and drying component 1012 is used to perform heat exchange between cooling water and air in the mine to achieve cooling, and the protection rod 1013 is used to protect the cooling and drying component 1012.

[0028] Among them, the support block 1011 is of split design, and the support blocks 1011 are combined and spliced ​​to form an arched shape as a whole. The support blocks 1011 are connected by flanges and are provided with sealing rings, which makes it convenient to disassemble and carry the refrigeration and cooling assembly 101, thereby improving the convenience of using the device; The support block 1011 is fixed to the inner wall of the mine by anchor rods, which can fix the support block 1011 while keeping it close to the rock wall of the mine. The cooling water circulating in the support block 1011 can reduce the heat conduction from the rock wall to the mine, thereby maintaining the cooling effect.

[0029] The connecting pipe 200 is provided with various lengths. According to the mining depth of the mine, the length of the connecting pipe 200 is gradually shortened to coordinately control the distribution density of the refrigeration and cooling component 101 .

[0030] The rest of the structure is the same as that of Example 1.

[0031] In summary, when installing the device, the support block 1011 is assembled in contact with the rock wall of the mine, and then the refrigeration and cooling component 101 is fixed to the rock wall of the mine by anchor rods. The density of the refrigeration and cooling component 101 is arranged according to the depth of the mine. The temperature and humidity at shallower positions of the mine are lower, and the distance between the refrigeration and cooling components 101 is arranged farther. At this time, the refrigeration and drying capacity of the refrigeration and cooling component 101 is lower. The temperature and humidity at deeper positions of the mine are higher, and the distance between the refrigeration and cooling components 101 is arranged closer. At this time, the refrigeration and drying capacity of the refrigeration and cooling component 101 is higher. The refrigeration and cooling component 101 is distributed in this way to maximize the refrigeration and drying effect of cooling water on the inside of the mine. When the mining of the mine is completed, the support block 101 can be quickly disassembled and repackaged for the next mining work, thereby improving the utilization rate of materials.

[0032] Example 3 Reference Figure 1-Figure 6 , which is the third embodiment of the present invention, and is different from the previous embodiment in that: this embodiment can reduce the air temperature and moisture content in the mine. Compared with embodiment 2, further, a cooling water flow cavity 1011-1 is provided in the support block 1011, which is a channel for cooling water flow, and a heat exchange fin 1011-2 is provided on the cooling water flow cavity 1011-1, which is used to increase the contact area with the cooling water and improve the refrigeration and drying effect; The cooling water flow chamber 1011-1 is connected to the cooling water inlet 102 and the circulating water outlet 103. The cooling water enters the cooling water flow chamber 1011-1 through the cooling water inlet 102, and then flows into the circulating water pipe 300 from the cooling water inlet 102, completing a refrigeration and drying cycle.

[0033] The cooling water inlet 102, the circulating water outlet 103, the connecting pipe 200 and the circulating water pipe 300 are all connected by flanges, which makes it easy to disassemble and assemble the support block 1011. The cooling water inlet 102 and the circulating water outlet 103 are both provided with closed valves, which facilitates the on-off control of a single group of refrigeration and cooling components 101, and facilitates the maintenance or replacement of one or more groups of refrigeration and cooling components 101 when the device is running.

[0034] The cooling and drying component 1012 includes a condensation plate 1012-1 arranged on the support block 1011, a guide block 1012-2 arranged on the condensation plate 1012-1, a flow groove 1012-3 arranged on the condensation plate 1012-1, and a drainage groove 1012-4 arranged on the condensation plate 1012-1, which are used for discharging condensed water. The condensation plate 1012-1 is used to absorb heat in the mine air and perform heat exchange with cooling water in the support block 1011 to cool the mine air. The guide block 1012-2 is used for condensation of water when the hot and humid air in the mine contacts the cold condensation plate 1012-1. The flow groove 1012-3 is used for the flow path of condensed water. The drainage groove 1012-4 is used for discharging condensed water. The cooling and drying component 1012 is provided with multiple groups on the support block 1011. The flow groove 1012-3 and the drainage groove 1012-4 are connected, and the condensed water on the guide block 1012-2 is gathered into the drainage groove 1012-4 through the flow groove 1012-3 and discharged in a centralized manner.

[0035] Among them, the flow groove 1012-3 is set to a shape that is easy to guide the condensed water; the flow groove 1012-3 is arranged linearly on the condensation plate 1012-1, and the overall shape of the flow groove 1012-3 can be an arrow shape, with the middle part of the arrow being high and the two ends being low, so that after the condensed water on the guide block 1012-2 contacts the highest end of the flow groove 1012-3, it will flow toward the bottom of the flow groove under the action of gravity and gather into the drainage groove 1012-4, so as to avoid the condensed water from remaining on the condensation plate 1012-1, and by collecting and discharging the condensed water, it is possible to achieve the cleaning of the surface of the condensation plate 1012-1 while discharging the condensed water, so as to prevent dust from accumulating on the condensation plate 1012-1 and reducing the cooling and drying effects of the device; The flow grooves 1012-3 are symmetrically distributed on the condensation plate 1012-1, so that the condensed water on the guide block 1012-2 can flow along the flow grooves 1012-3 to the two ends of the drainage grooves 1012-4, preventing the condensed water from dripping from the top of the condensation plate 1012-1, resulting in residual condensed water.

[0036] Among them, a water guide trough is opened below the drainage trough 1012-4 corresponding to the mine pit to discharge condensate water out of the mine.

[0037] The rest of the structure is the same as that of Example 2.

[0038] In summary, when the cooling water enters the support block 1011 and starts to circulate, at this time, the condensation plate 1012-1 becomes cold through the heat exchange fins 1011-2, and the cold condensation plate 1012-1 exchanges heat with the hot and humid air in the mine. At this time, the hot and humid air transfers the heat to the cooling water through the condensation plate 1012-1 and the heat exchange fins 1011-2, and the cooling water takes away the heat, the temperature of the hot and humid air decreases, and the water vapor in the air condenses on the guide block 1012-2, gathers to the drainage groove 1012-4 through the flow groove 1012-3, and is then discharged through the drainage groove 1012-4. At the same time, the surface of the condensation plate 1012-1 is rinsed to keep the surface of the condensation plate 1012-1 clean. At this time, the temperature and humidity of the air in the mine are reduced, and other refrigeration equipment is cooperated to improve the comfort in the mine.

[0039] When it is necessary to repair or replace one or more refrigeration and cooling components 101 in the running device, close the sealing valves of the cooling water inlet 102 and the circulating water outlet 103 on the faulty refrigeration and cooling component 101 and the adjacent refrigeration and cooling component 101, remove the faulty refrigeration and cooling component 101, use a water pipe of corresponding size to connect the remaining cooling water inlet 102 and the circulating water outlet 103, open the sealing valve to connect the device, and the device continues to operate. When the repaired or new refrigeration and cooling component 101 is delivered, close the valves on the cooling water inlet 102 and the circulating water outlet 103 on both sides, remove the water pipe, and then seal the cooling water inlet 102 and the circulating water outlet 103 on both sides of the refrigeration and cooling component 101 to be installed. At this time, install the refrigeration and cooling component 101 to be installed on the device, and then open the sealed cooling water inlet 102 and the circulating water outlet 103, and the device continues to operate.

[0040] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A refrigeration and cooling device for a mine, comprising a connecting pipe (200) and a circulating water pipe (300), characterized in that: It also comprises a refrigeration and cooling unit (100), the refrigeration and cooling unit (100) comprising a refrigeration and cooling component (101), a cooling water inlet (102) arranged on the refrigeration and cooling component (101), and a circulating water outlet (103) arranged on the refrigeration and cooling component (101); the refrigeration and cooling unit (100) is provided with multiple groups, the refrigeration and cooling unit (100) is fitted with the inner cavity of the mine, and the refrigeration and cooling unit (100) also plays a role in supporting the mine; the connecting pipe (200) is arranged at the cooling water inlet (102) and the circulating water outlet (103); and the circulating water pipe (300) is arranged on the circulating water outlet (103).

2. The underground refrigeration and cooling device of claim 1, characterized in that: The refrigeration and temperature reduction component (101) comprises a support block (1011), a temperature reduction and drying component (1012) arranged on the support block (1011), and a protection rod (1013) arranged on the support block (1011).

3. The underground refrigeration and cooling device of claim 2, characterized in that: The support blocks (1011) are of split design, and the support blocks (1011) are overall arched after being assembled and spliced. The support blocks (1011) are connected via flanges and are provided with sealing rings. The support block (1011) is fixed to the inner wall of the mine cave by means of anchor rods.

4. The underground refrigeration and cooling device of claim 3, characterized in that: A cooling water flow cavity (1011-1) is provided in the support block (1011), and a heat exchange fin (1011-2) is provided on the cooling water flow cavity (1011-1); The cooling water flow cavity (1011-1) is in communication with the cooling water inlet (102) and the circulating water outlet (103).

5. The underground refrigeration and cooling device of claim 4, characterized in that: The cooling water inlet (102), the circulating water outlet (103), the connecting pipe (200) and the circulating water pipe (300) are all connected via flanges; The cooling water inlet (102) and the circulating water outlet (103) are both provided with closed valves.

6. The underground refrigeration and cooling device of claim 5, characterized in that: One end of the circulating water pipe (300) and the outer cooling water inlet (102) are fixedly connected to a ground cooling tower via a water pipe, and a water pump is provided on the ground cooling tower.

7. The underground refrigeration and cooling device of claim 6, characterized in that: The cooling and drying component (1012) comprises a condensation plate (1012-1) arranged on the support block (1011), a guide block (1012-2) arranged on the condensation plate (1012-1), a flow groove (1012-3) arranged on the condensation plate (1012-1), and a drainage groove (1012-4) arranged on the condensation plate (1012-1); the cooling and drying component (1012) is provided with multiple groups on the support block (1011); The flow groove (1012-3) and the drainage groove (1012-4) are connected.

8. The underground refrigeration and cooling device of claim 7, characterized in that: The flow groove (1012-3) is configured to be in a shape that facilitates the diversion of condensed water; The flow grooves (1012-3) are arranged linearly on the condensation plate (1012-1).

9. The underground refrigeration and cooling device of claim 8, characterized in that: A water channel is opened below the corresponding drainage channel (1012-4) of the mine pit.

10. The underground refrigeration and cooling device of claim 9, characterized in that: The connecting pipe (200) is provided with various lengths, and the length of the connecting pipe (200) is gradually shortened according to the mining depth of the mine.

Images