CN111396115B - Cold quantity recycling system for artificial frozen soil layer of freezing construction mine for mine cooling - Google Patents
Cold quantity recycling system for artificial frozen soil layer of freezing construction mine for mine cooling Download PDFInfo
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- CN111396115B CN111396115B CN202010234069.6A CN202010234069A CN111396115B CN 111396115 B CN111396115 B CN 111396115B CN 202010234069 A CN202010234069 A CN 202010234069A CN 111396115 B CN111396115 B CN 111396115B
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- 238000007710 freezing Methods 0.000 title claims abstract description 197
- 230000008014 freezing Effects 0.000 title claims abstract description 193
- 238000001816 cooling Methods 0.000 title claims abstract description 82
- 238000010276 construction Methods 0.000 title claims abstract description 18
- 239000002689 soil Substances 0.000 title claims abstract description 16
- 238000004064 recycling Methods 0.000 title claims abstract description 9
- 239000012266 salt solution Substances 0.000 claims abstract description 34
- 239000007788 liquid Substances 0.000 claims description 197
- 150000003839 salts Chemical class 0.000 claims description 31
- 230000001502 supplementing effect Effects 0.000 claims description 10
- 239000000110 cooling liquid Substances 0.000 claims description 6
- 238000009423 ventilation Methods 0.000 claims description 3
- 238000004321 preservation Methods 0.000 claims description 2
- 230000005641 tunneling Effects 0.000 abstract description 8
- 238000000034 method Methods 0.000 abstract description 6
- 230000000717 retained effect Effects 0.000 abstract description 3
- 230000001105 regulatory effect Effects 0.000 description 5
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 4
- 230000001276 controlling effect Effects 0.000 description 3
- 238000005259 measurement Methods 0.000 description 3
- 238000000605 extraction Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 239000000284 extract Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000005065 mining Methods 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 239000011435 rock Substances 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
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Classifications
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- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21F—SAFETY DEVICES, TRANSPORT, FILLING-UP, RESCUE, VENTILATION, OR DRAINING IN OR OF MINES OR TUNNELS
- E21F3/00—Cooling or drying of air
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D9/00—Tunnels or galleries, with or without linings; Methods or apparatus for making thereof; Layout of tunnels or galleries
- E21D9/001—Improving soil or rock, e.g. by freezing; Injections
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21F—SAFETY DEVICES, TRANSPORT, FILLING-UP, RESCUE, VENTILATION, OR DRAINING IN OR OF MINES OR TUNNELS
- E21F1/00—Ventilation of mines or tunnels; Distribution of ventilating currents
- E21F1/006—Ventilation at the working face of galleries or tunnels
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- Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Geology (AREA)
- Soil Sciences (AREA)
- Environmental & Geological Engineering (AREA)
- Investigation Of Foundation Soil And Reinforcement Of Foundation Soil By Compacting Or Drainage (AREA)
- Excavating Of Shafts Or Tunnels (AREA)
Abstract
The invention relates to a cold recycling method for an artificial frozen soil layer of a freezing construction mine, which is used for a mine cooling system, and the cold of the freezing wall is extracted by using a freezing pipe heat exchanger retained in the freezing wall and is sent to a bottom-hole high-pressure-bearing air cooler or a ground salt solution circulating air cooling device (at a proper position) to cool bottom-hole air supply air flow to 18-20 ℃, so that the requirement of a hot and humid environment in a tunneling distance can be met.
Description
Technical Field
The invention relates to a mine cooling system for recycling cold energy of an artificial frozen soil layer of a freezing construction mine.
Background
Because a deep surface soil mine is covered with a soil layer of hundreds of meters, the construction of a shaft must be carried out by a stable freezing method, so that a freezing shaft wall with the radius of about 10m is formed around the shaft after the construction is finished, and a large amount of cold energy is contained. In the current construction, the cold energy of the frozen wall is mostly released naturally, which causes great waste of energy. The invention provides a device and a method for freezing cold of an artificial frozen soil layer of a mine to cool the mine aiming at the current situation, wherein the device and the method are used for solving the problem that the mine heat damage is caused by the increase of the mining depth, the high rock temperature and the like in the construction and production of a deep surface soil mine.
Disclosure of Invention
The technical problem to be solved by the invention is to provide a mine cooling system for recycling cold of an artificial frozen soil layer of a freezing construction mine. The method is suitable for local cooling of the underground tunneling working face in the foundation construction period of the freezing construction mine.
The main innovation point is that the freezing pipe heat exchanger of the air exhaust vertical shaft is used for cooling cold water, the cooled cold water is conveyed to an air cooler for cooling air flow at an air supply vertical shaft inlet or air flow at a shaft bottom tunneling working face, the air flow is further cooled by a low-temperature freezing vertical shaft wall in the vertical shaft, and the cold energy of an artificial frozen soil layer of a deep surface soil freezing mine is recycled to the maximum extent.
In order to solve the technical problems, the invention provides the following technical scheme:
the utility model provides a cold volume of freezing construction mine manual frozen soil layer is recycled and is used for mine cooling system, its characterized in that includes frozen wall reverse heat transfer cooling system, low temperature salt liquid cooling air current cooling system, observes and controls the system.
The freezing wall reverse heat exchange and cold taking system comprises a regulation and control type freezing pipe heat exchanger assembly, a salt liquid circulating pump set, a freezing wall cold taking circulating salt liquid regulation and control device, a salt liquid supplementing and constant pressure device, a liquid supply branch pipe, a liquid distributor and a liquid collector;
the low-temperature salt solution cooling air flow cooling system comprises: the salt solution circulating air cooling device comprises a freezing wall liquid taking and returning pipe, a freezing wall liquid taking and supplying pipe, a salt solution supplementing and constant pressure device; the salt solution circulating air cooling device comprises an underground salt solution circulating air cooling device and a ground salt solution circulating air cooling device;
the test system comprises
The system comprises a liquid supply and return pipe temperature acquisition module, a frozen wall cold-taking circulating salt solution regulation and control device, a cooling cold air flow heat and humidity parameter acquisition module, a shaft air supply flow heat and humidity parameter acquisition module, an inner ring pipe distribution regulation and control valve, a middle ring pipe regulation valve, an outer layer ring pipe distribution regulation and control valve, a liquid return branch pipe and a control platform;
the regulating type freezing pipe heat exchanger component comprises an inner ring freezing pipe, a middle ring freezing pipe and an outer ring freezing pipe, wherein the inner ring freezing pipe, the middle ring freezing pipe and the outer ring freezing pipe are all provided with distribution regulating valves, the outer part of the inner ring freezing pipe, the middle ring freezing pipe and the outer ring freezing pipe is provided with three sections of freezing wall liquid supply trunk pipes,
one side of the freezing wall liquid returning main pipe is communicated with the inner ring freezing pipe, the middle ring freezing pipe and the outer ring freezing pipe through pipelines, the other side of the freezing wall liquid returning main pipe is communicated with the middle ring freezing pipe and the outer ring freezing pipe through pipelines,
the freezing wall liquid return main pipe is provided with a freezing wall liquid return main pipe,
the freezing wall liquid return main pipe is connected with the freezing wall liquid supply main pipe through a freezing pipe liquid return inner pipe,
the freezing wall liquid return main pipe is communicated with the freezing wall liquid supply pipe,
the frozen wall liquid supply trunk pipe is communicated with the frozen wall liquid return pipe, one end of the liquid collector is communicated with the frozen wall liquid taking return pipe, and the other end of the liquid collector is provided with the frozen wall 1 area liquid return pipe, the frozen wall 2 area liquid return pipe and the frozen wall 3 area liquid return pipe;
one end of the liquid separator is communicated with a freezing wall liquid taking and supplying pipe, and the other end is provided with a freezing wall 1 area liquid supplying pipe, a freezing wall 2 area liquid supplying pipe and a freezing wall area liquid supplying pipe;
the freezing wall cold-taking liquid return pipe is provided with a liquid supply and return pipe temperature acquisition module and a freezing wall cold-taking circulating salt liquid regulation and control device;
the freezing wall cold-taking liquid supply pipe is provided with a liquid supply and return pipe temperature acquisition module, a salt liquid circulating pump set and a salt liquid supplementing and constant pressure device; the other sides of the freezing wall liquid return pipe and the freezing wall liquid supply pipe are connected with a ground salt solution circulating air cooling device, the ground salt solution circulating air cooling device is connected with a ground ventilator, a tunnel is provided with a cooling cold air flow heat and humidity parameter acquisition module, and air is sent into the tunnel through an air supply vertical shaft
Compared with the prior art, the invention has the beneficial effects that:
the invention utilizes the freezing pipe heat exchanger retained in the freezing wall to extract the cold energy of the freezing wall and send the cold energy to the bottom high pressure-bearing air cooler to cool the bottom air supply air flow to 18 ℃ at a proper position, thereby meeting the heat and humidity environment requirement in the tunneling distance.
Because the air flow is cooled in the vertical shaft in the freezing vertical shaft, the air flow at the bottom of the shaft is heated to a higher temperature after a certain distance, if the air flow is conveyed by an air duct, a certain air supply distance can be prolonged, and then the local cooling is implemented at the bottom of the shaft to cool the air flow, so that the hot and humid environment along the roadway is influenced to a certain extent, and the energy consumption for cooling the tunneling working face is low, and the cooling effect is good. The schematic diagram of such a cooling scheme is shown in fig. 1. The freezing pipe heat exchanger extracts cold energy of a freezing wall to cool the air supply flow cooling system of the vertical shaft. Extracting cold energy of the frozen wall by using a freezing pipe heat exchanger retained in the frozen wall, sending the cold energy to a wellhead air cooler to cool a wellhead, and sending the air to a wellhead to be cooled to 21-24 ℃, wherein the bottom air flow temperature can reach 18-20 ℃; the bottom hole wind flow parameter can meet the requirement of improving the hot and humid environment in the tunneling distance. The principle of this cooling scheme is shown in fig. 2.
The invention utilizes the freezing pipe heat exchanger of the air exhaust vertical shaft to cool the cooling cold water, the cooling cold water is conveyed to the air cooler to cool the air flow at the inlet of the air supply vertical shaft or the air flow at the driving working face at the bottom of the shaft, and the air flow is further cooled by the low-temperature freezing vertical shaft wall in the vertical shaft, thereby maximally utilizing the cold energy of the artificial frozen soil layer of the deep surface soil freezing mine to recycle.
Drawings
Figures 1 and 2 are two embodiments of frozen borehole wall cold energy for mine shaft cooling respectively,
figure 3 is a deployment embodiment of the freeze tube heat exchanger to extract cold from the frozen wall,
fig. 4 and 5 are a partial view of a freeze tube heat exchanger connection, fig. 1 and a partial view, fig. 2, respectively.
In the figure: 1-underground salt liquid circulating air cooling device, 2-mine ventilation fan, 3-heat-insulating flexible air duct, 4-freezing pipe heat exchanger, 5-salt liquid circulating pump set, 6-freezing wall liquid taking and returning pipe, 7-freezing wall liquid taking and supplying pipe, 8-liquid supplying and returning pipe temperature collecting module, 9-freezing wall liquid taking and cooling circulating salt liquid regulating and controlling device, 10-salt liquid supplementing and constant pressure device, 11-cooling cold air flow heat and humidity parameter collecting module, 12-ground salt liquid circulating air cooling device, 13-ground ventilator, 14-shaft air supply flow heat and humidity parameter collecting module, 15-inner ring freezing pipe, 16-inner ring pipe distributing and controlling valve, 17-middle ring freezing pipe, 18-middle ring pipe regulating valve, 19-outer ring freezing pipe and 20-outer ring pipe distributing and controlling valve, 21-liquid return branch pipes, 22-liquid supply branch pipes, 23-liquid separators, 24-liquid collectors, 25-liquid supply pipes in a frozen wall 1 area, 26-liquid return pipes in a frozen wall 1 area, 27-liquid supply pipes in a frozen wall 2 area, 28-liquid return pipes in a frozen wall 2 area, 29-liquid supply pipes in a frozen wall 3 area, 30-liquid return pipes in a frozen wall 3 area, 31-liquid supply sleeves of the frozen pipes, 32-liquid return inner pipes of the frozen pipes, 33-liquid supply pipes in a frozen wall 1 area, 34-liquid return pipes in a frozen wall 1 area, 35-liquid supply pipes in a frozen wall 2 area, 36-liquid return pipes in a frozen wall 2 area, 37-liquid supply pipes in a frozen wall 3 area, 38-liquid return pipes in a frozen wall 3 area, 39-control platforms, 40-liquid return connection pipes of the freezing circle pipes and 41-liquid supply connection pipes of the freezing circle pipes.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention. The device for cooling the mine by recycling the cold energy of the artificial frozen soil layer of the freezing construction mine is characterized by comprising a reverse heat exchange and cooling system of a frozen wall, a low-temperature salt solution cooling air flow cooling system and a measurement and control system.
The freezing wall reverse heat exchange and cold taking system comprises a regulation and control type freezing pipe heat exchanger component 4, a salt liquid circulating pump set 5, a freezing wall cold taking circulating salt liquid regulation and control device 9, a salt liquid supplementing and constant pressure device 10, liquid supply branch pipes 22 and 23-a liquid separator 23 and a liquid collector 24;
the low-temperature salt solution cooling air flow cooling system comprises: a salt solution circulating air cooling device, a freezing wall liquid taking and returning pipe, a freezing wall liquid taking and supplying pipe 7, a salt solution supplementing and constant pressure device 10; the salt solution circulating air cooling device comprises an underground salt solution circulating air cooling device 1 and a ground salt solution circulating air cooling device 12;
the test system comprises
A liquid supply and return pipe temperature acquisition module 8, a frozen wall cold-taking circulating salt solution regulation and control device 9, a cooling cold air flow heat and humidity parameter acquisition module 11, a shaft air supply flow heat and humidity parameter acquisition module 14, inner ring pipe distribution regulation and control valves 16 and 18, an intermediate ring pipe regulation valve 18, an outer layer ring pipe distribution regulation and control valve 20, a liquid return branch pipe 21 and a control platform 39;
the adjustable freezing pipe heat exchanger component 4 comprises an inner ring freezing pipe 15, a middle ring freezing pipe 17 and an outer ring freezing pipe 19, the inner ring freezing pipe 15, the middle ring freezing pipe 17 and the outer ring freezing pipe 19 are all provided with distribution adjusting valves (specifically 16, 18 and 20), three sections of freezing wall liquid supply dry pipes are arranged outside the distribution adjusting valves, namely a freezing wall 1 area liquid supply dry pipe 33, a freezing wall 2 area liquid supply dry pipe 35 and a freezing wall 3 area liquid supply dry pipe 37,
one side of the freezing wall liquid returning main pipe is communicated with the inner ring freezing pipe 15, the middle ring freezing pipe 17 and the outer ring freezing pipe 19 through pipelines, the other side of the freezing wall liquid returning main pipe is communicated with the middle ring freezing pipe 17 and the outer ring freezing pipe 19 through pipelines,
the freezing wall liquid return main pipe is provided with a freezing wall liquid return main pipe which is respectively a freezing wall 1 area liquid return main pipe 34, a freezing wall 2 area liquid return main pipe 36 and a freezing wall 3 area liquid return main pipe 38 correspondingly,
the freezing wall liquid return main pipe is connected with the freezing wall liquid supply main pipe through a freezing pipe liquid return inner pipe 32, namely 34 and 33,
the frozen wall liquid return dry pipe is communicated with a frozen wall liquid supply pipe, a liquid supply pipe 35 in a frozen wall 2 area is communicated with a liquid supply pipe 27 in the frozen wall 2 area, a liquid supply pipe 33 in a frozen wall 1 area is communicated with a liquid supply pipe 25 in a frozen wall 1 area, and a liquid supply pipe 37 in a frozen wall 3 area is communicated with a liquid supply pipe 29 in a frozen wall 3 area;
the freezing wall liquid supply dry pipe is communicated with the freezing wall liquid return pipe, (specifically, the freezing wall 2 area liquid return dry pipe 36 is communicated with the freezing wall 2 area liquid return pipe 28, the freezing wall 1 area liquid return dry pipe 34 is communicated with the freezing wall 1 area liquid return pipe 26, and the freezing wall 3 area liquid return dry pipe 38 is communicated with the freezing wall 3 area liquid return pipe 30;
one end of the liquid collector 24 is communicated with the frozen wall liquid taking and returning pipe 6, and the other end is provided with a frozen wall 1 area liquid returning pipe 26, a frozen wall 2 area liquid returning pipe 28 and a frozen wall 3 area liquid returning pipe 30;
one end of the liquid separator 23 is communicated with the frozen wall cold taking liquid supply pipe 7, and the other end is provided with a frozen wall 1 area liquid supply pipe 25, a frozen wall 2 area liquid supply pipe 27 and a frozen wall 3 area liquid supply pipe 29;
the freezing wall cold-taking liquid return pipe 6 is provided with a liquid supply and return pipe temperature acquisition module 8 and a freezing wall cold-taking circulating salt solution regulation and control device 9;
and a freezing wall cold taking liquid supply pipe 7 is provided with a liquid supply and return pipe temperature acquisition module 8, a salt liquid circulating pump group 5 and a salt liquid supplementing and constant pressure device 10.
The freezing tube coupling relationship of fig. 4 and 5: the inner pipe of the freezing pipe heat exchanger is a liquid return pipe 32, liquid return pipes of all freezing pipes in the freezing wall 1 area are connected in parallel through a liquid return connecting pipe of a freezing ring and then connected with a liquid return main pipe 34 in the freezing wall 1 area, and then connected with a low-temperature salt solution cooling air flow cooling system through a liquid return pipe 26 in the freezing wall 1 area; the outer pipe of the freezing pipe heat exchanger is a liquid supply pipe 31, liquid supply pipes of all freezing pipes in the freezing wall 1 area are connected in parallel through a liquid supply connecting pipe of the freezing ring and then connected with a liquid supply trunk pipe 33 in the freezing wall 1 area, and then connected with a low-temperature salt liquid cooling air flow cooling system through a liquid supply pipe 25 in the freezing wall 1 area; the connection relationship of the freezing tube-tube heat exchangers in the freezing wall 2 area and the freezing wall 3 area is the same as that in the freezing wall 1 area.
As shown in figure 1, the other ends of the freezing wall cold-taking liquid return pipe 6 and the freezing wall cold-taking liquid supply pipe 7 are both connected with an underground salt liquid circulating air cooling device 1, a mine ventilation fan 2 and a heat preservation flexible wind tube 3 are installed at both ends of the underground salt liquid circulating air cooling device 1, the underground salt liquid circulating air cooling device 1 is also provided with a cooling cold wind flow heat and humidity parameter acquisition module 11,
as shown in fig. 2, the other sides of the freezing wall cooling liquid return pipe 6 and the freezing wall cooling liquid supply pipe 7 are both connected with a ground salt solution circulating air cooling device 12, the ground salt solution circulating air cooling device 12 is connected with a ground ventilator 13, a roadway is provided with 11-a temperature-reducing cold air flow heat and humidity parameter acquisition module, and the 12 sends air into the roadway through an air supply vertical shaft.
Implementation process (operation principle):
example 1: after the vertical shaft construction is finished, a freezing wall cold quantity reverse utilization system of the air exhaust shaft is started, the three areas are replaced in turn (the period is 7 days), and the valves of the inner, middle and outer freezing ring pipes are adjusted in each area according to the temperature of return liquid to determine the quantity of starting reverse heat extraction of the freezing pipes. Meanwhile, a low-temperature salt solution cooling air flow cooling system and a measurement and control system on the ground are started, and the flow of the salt solution pump is adjusted in real time according to the air temperature parameters of the underground tunneling working face.
Example 2: after the vertical shaft construction is finished, a freezing wall cold quantity reverse utilization system of the air exhaust shaft is started, the three areas are replaced in turn (the period is 7 days), and the valves of the inner, middle and outer freezing ring pipes are adjusted in each area according to the temperature of return liquid to determine the quantity of starting reverse heat extraction of the freezing pipes. Meanwhile, an underground low-temperature salt solution cooling air flow cooling system and a measurement and control system are started, and the flow of the salt solution pump is adjusted in real time according to the air temperature parameters of the underground tunneling working face.
The freezing pipe heat exchangers are divided into a plurality of groups by utilizing a regulating valve in three heat exchange areas, namely an inner ring pipe, a middle ring pipe and an outer ring layer, and the cold quantity in the freezing wall is extracted according to the actually measured temperature and the principle of alternately taking cold.
Claims (3)
1. The cold energy recycling of the artificial frozen soil layer of the freezing construction mine is used for a mine cooling system and is characterized by comprising a frozen wall reverse heat exchange and cooling system, a low-temperature salt liquid cooling air flow cooling system and a test system; the freezing wall reverse heat exchange and cold taking system comprises a regulation and control type freezing pipe heat exchanger assembly (4), a salt liquid circulating pump set (5), a freezing wall cold taking circulating salt liquid regulation and control device (9), a salt liquid supplementing and constant pressure device (10), a liquid supply branch pipe (22), a liquid distributor (23) and a liquid collector (24); the low-temperature salt solution cooling air flow cooling system comprises: a salt solution circulating air cooling device, a freezing wall liquid taking and returning pipe, a freezing wall liquid taking and supplying pipe (7), a salt solution supplementing and constant pressure device (10); the salt solution circulating air cooling device comprises an underground salt solution circulating air cooling device (1) and a ground salt solution circulating air cooling device (12); the test system comprises a liquid supply and return pipe temperature acquisition module (8), a frozen wall cold-taking circulating salt solution regulation and control device (9), a cooling cold air flow heat and humidity parameter acquisition module (11), a shaft air supply flow heat and humidity parameter acquisition module (14), an inner ring pipe distribution regulation and control valve (16), a middle ring pipe regulation valve (18), an outer layer ring pipe distribution regulation and control valve (20), a liquid return branch pipe (21) and a control platform (39); the adjustable freezing pipe heat exchanger component (4) comprises an inner ring freezing pipe (15), a middle ring freezing pipe (17) and an outer ring freezing pipe (19), wherein the inner ring freezing pipe (15), the middle ring freezing pipe (17) and the outer ring freezing pipe (19) are respectively provided with a distribution adjusting valve, three sections of freezing wall liquid supply dry pipes are arranged outside the distribution adjusting valve and are respectively a freezing wall 1 section liquid supply dry pipe (33), a freezing wall 2 section liquid supply dry pipe (35) and a freezing wall 3 section liquid supply dry pipe (37), one side of the freezing wall liquid return dry pipe is communicated with the inner ring freezing pipe (15), the middle ring freezing pipe (17) and the outer ring freezing pipe (19) through pipelines, the other side of the freezing wall liquid return dry pipe is communicated with the middle ring freezing pipe (17) and the outer ring freezing pipe (19) through pipelines, the freezing wall liquid return dry pipe is provided with a freezing wall liquid return dry pipe, and the corresponding freezing wall 1 section liquid return dry pipe (34) and the outer ring freezing pipe are respectively, The freezing wall 2 area liquid return dry pipe (36) and the freezing wall 3 area liquid return dry pipe (38) are connected with the freezing wall liquid supply dry pipe through a freezing pipe liquid return inner pipe (32), the freezing wall liquid return dry pipe is communicated with the freezing wall liquid supply pipe, the freezing wall liquid supply dry pipe is communicated with the freezing wall liquid return pipe, one end of the liquid collector (24) is communicated with the freezing wall liquid taking return pipe (6), and the other end of the liquid collector is a freezing wall 1 area liquid return pipe (26), a freezing wall 2 area liquid return pipe (28) and a freezing wall 3 area liquid return pipe (30); one end of the liquid separator (23) is communicated with the freezing wall liquid taking and supplying pipe (7), and the other end is provided with a freezing wall 1 area liquid supplying pipe (25), a freezing wall 2 area liquid supplying pipe (27) and a freezing wall 3 area liquid supplying pipe (29); a liquid supply and return pipe temperature acquisition module (8) and a frozen wall cold-taking circulating salt solution regulation and control device (9) are arranged on the frozen wall cold-taking liquid return pipe (6); the freezing wall cold taking liquid supply pipe (7) is provided with a liquid supply and return pipe temperature acquisition module (8), a salt liquid circulating pump group (5) and a salt liquid supplementing and constant pressure device (10).
2. The system for recycling the cold of the artificial frost layer of the freezing construction mine for the mine cooling according to claim 1, wherein the other sides of the freezing wall cooling liquid return pipe (6) and the freezing wall cooling liquid supply pipe (7) are connected with a ground salt liquid circulating air cooling device (12), the ground salt liquid circulating air cooling device (12) is connected with a ground ventilator (13), a cooling cold air flow heat and humidity parameter acquisition module (11) is installed on a roadway, and the ground salt liquid circulating air cooling device (12) sends air into the roadway through an air supply vertical shaft.
3. The mine cooling system for recycling the cold of the artificial frost layer of the freezing construction mine according to claim 1, wherein the other ends of the freezing wall cooling liquid return pipe (6) and the freezing wall cooling liquid supply pipe (7) are connected with an underground salt liquid circulating air cooling device (1), the mine ventilation fan (2) and the heat preservation flexible air duct (3) are installed at two ends of the underground salt liquid circulating air cooling device (1), and the underground salt liquid circulating air cooling device (1) is further provided with a cooling cold air flow heat and humidity parameter acquisition module (11).
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| Application Number | Priority Date | Filing Date | Title |
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| CN202010234069.6A CN111396115B (en) | 2020-03-30 | 2020-03-30 | Cold quantity recycling system for artificial frozen soil layer of freezing construction mine for mine cooling |
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| CN202010234069.6A CN111396115B (en) | 2020-03-30 | 2020-03-30 | Cold quantity recycling system for artificial frozen soil layer of freezing construction mine for mine cooling |
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| CN111396115B true CN111396115B (en) | 2021-08-27 |
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| CN113107495B (en) * | 2021-03-30 | 2023-10-13 | 天地科技股份有限公司 | Inclined shaft freezing and cold energy recovery device capable of improving safe operation of ammonia system without stopping |
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| DE2631754C3 (en) * | 1976-07-15 | 1984-01-26 | GFW Gesellschaft für Wärmetechnik mbH, 4330 Mülheim | Equipment for weather cooling in underground mining |
| JP2003129791A (en) * | 2001-10-26 | 2003-05-08 | Hokuetsu Kogyo Co Ltd | Ventilating and cooling method and apparatus in shield driving machine |
| CN100467830C (en) * | 2008-01-29 | 2009-03-11 | 何满潮 | Mine heat conversion circulating production system |
| CN204082198U (en) * | 2014-07-09 | 2015-01-07 | 山东新雪矿井降温科技有限公司 | A kind of winter natural cooling source of utilizing carries out the type pit cooling system changed |
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