CN106593511B - A kind of thermal post_buckling roadway support cooling system and method - Google Patents

A kind of thermal post_buckling roadway support cooling system and method Download PDF

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Publication number
CN106593511B
CN106593511B CN201710017712.8A CN201710017712A CN106593511B CN 106593511 B CN106593511 B CN 106593511B CN 201710017712 A CN201710017712 A CN 201710017712A CN 106593511 B CN106593511 B CN 106593511B
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heat
cooling
branch
reflux line
cooling supply
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CN106593511A (en
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仲晓星
刘震起
王晓玲
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China University of Mining and Technology CUMT
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China University of Mining and Technology CUMT
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    • EFIXED CONSTRUCTIONS
    • E21EARTH OR ROCK DRILLING; MINING
    • E21FSAFETY DEVICES, TRANSPORT, FILLING-UP, RESCUE, VENTILATION, OR DRAINING IN OR OF MINES OR TUNNELS
    • E21F3/00Cooling or drying of air
    • EFIXED CONSTRUCTIONS
    • E21EARTH OR ROCK DRILLING; MINING
    • E21DSHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
    • E21D15/00Props; Chocks, e.g. made of flexible containers filled with backfilling material
    • E21D15/50Component parts or details of props

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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)
  • Mechanical Engineering (AREA)
  • Structural Engineering (AREA)
  • Road Paving Structures (AREA)

Abstract

The present invention relates to a kind of thermal post_buckling roadway support cooling systems, the system mainly includes refrigerating plant, hollow cooling anchor pole, main cooling supply pipeline, main reflux line, branch cooling supply pipeline, branch reflux line, the refrigerating plant, hollow cooling anchor pole, main cooling supply pipeline, main reflux line, branch cooling supply pipeline and branch reflux line connection forming circuit, heat transferring medium can recycle in the circuit.While the present invention is realized using hollow cooling anchor pole to roadway support, low-temperature heat exchange medium is persistently supplied to hollow cooling anchor pole by refrigerating plant, make heat transferring medium that heat exchange constantly occur with roadway surrounding rock, reduce country rock temperature, it avoids tunnel exposure country rock to conduct heat to tunnel air, the raising of air themperature in the underworkings fundamentally inhibited.

Description

A kind of thermal post_buckling roadway support cooling system and method
Technical field
The present invention relates to underground thermal pollution to administer field more particularly to a kind of thermal post_buckling roadway support cooling system and sides Method.
Background technique
The continuous increase of coal mining depth, the High-geotemperature in deep constantly heats underground air, so that mine air ring Border temperature increases to form hot evil.During downhole production, hot environment seriously endangers worker's physical and mental health, reduces working efficiency While increase the risk of safety accident.Currently, the method for high-temperature mine cooling is generally divided into two classes, one kind is by air-cooled For device directly to distinguished and admirable cooling, such as mine air conditioner, water-cooled cooling, ice-cold cooling, such methods are that (cold water is cold by heat transferring medium Ice) it is transported to underground, air cooler is installed near working face in the pit, heat transferring medium is by air cooler to entrance working face in the pit Hot air flow cools down, cannot be to causing airflow temperature raised coal petrography in underground to cool down.Second class is by tunnel coal Rock mass exposure and underground it is distinguished and admirable between form thermal insulation layer to prevent underground coal petrography from heating distinguished and admirable, as tunnel surface spray it is heat-insulated Material is heat-insulated using evacuated panel, moisture film plate heat exchanger group.Once this method thermal insulation layer failure, then cooling effect reduces.With Upper aspect fails directly to cool down to the country rock for causing underground high temperature.
Summary of the invention
In view of above-mentioned analysis, the present invention is intended to provide a kind of directly expose what country rock cooled down to high-temperature mine tunnel Supporting cooling system and method, to solve in the prior art cannot be to causing what the country rock of underground high temperature directly cooled down to ask Topic.
The purpose of the present invention is mainly achieved through the following technical solutions:
A kind of thermal post_buckling roadway support cooling system, it is characterised in that: the system mainly includes refrigerating plant, hollow Cool down anchor pole, main cooling supply pipeline, main reflux line, branch cooling supply pipeline, branch reflux line;
The refrigerating plant is connected to main cooling supply pipeline and main reflux line;
The main cooling supply pipeline connects branch cooling supply pipeline, and each hollow cooling anchor pole passes through branch cooling supply pipeline and main confession in system Cold pipeline connection, and then be connected to refrigerating plant;
The main reflux line connects branch reflux line, and each hollow cooling anchor pole by branch reflux line and is led back in system The connection of flow tube road, and then be connected to refrigerating plant;
The refrigerating plant, hollow cooling anchor pole, main cooling supply pipeline, main reflux line, branch cooling supply pipeline and branch return pipe Road connection forming circuit, heat transferring medium can recycle in the circuit.
The hollow cooling anchor pole mainly includes hollow bolt, heat-insulated pipe, separator, return hose, cooling supply hose, heat-insulated Plug and anchor rod pallet board;
Further, the heat-insulated pipe is located inside hollow bolt, heat-insulated pipe by hollow bolt inner cavity be divided into heat exchanging chamber and Back cavity, heat exchanging chamber and back cavity are concentric structure, and inner circle is back cavity, and outer circle is heat exchanging chamber, have insulation at the top of heat-insulated pipe Tube top disk and four insulation tube passages, heat-insulated pipe top plate and hollow bolt are affixed, and four insulation tube passages are along heat-insulated pipe circumference side To being uniformly distributed, insulation tube passage is connected to back cavity with heat exchanging chamber, and insulation bottom of the tube is embedded in separator;
The separator is tightly connected heat-insulated pipe and cooling supply hose and return hose, and cooling supply hose is embedded in separator and changes Hot chamber be connected to, return hose be embedded in separator and back cavity be connected to.
The hollow cooling anchor pole can guarantee that tunnel safety is stablized, and guarantee proper temperature production work in tunnel, simultaneously It being capable of the outer heat influence lane interior air-flow temperature of barrier structure.Heat-insulated pipe is embedded in separator, can guarantee heat-insulated pipe tail portion heat exchanging chamber It is not leaked mutually with the heat transferring medium in back cavity, while separator can play the role of fixed heat-insulated pipe.In order to guarantee to change The flow of heat transferring medium in thermal process, while in view of heat-insulated pipe will bear certain pulling force in actual use, therefore Four insulation tube passages are arranged to be uniformly distributed along heat-insulated pipe circumferencial direction, guarantee to keep changing while heat-insulated pipe bears certain pulling force The flow of thermal medium.
Further, the branch cooling supply pipeline is connected to heat exchanging chamber by cooling supply hose, and branch reflux line and back cavity are logical Return hose connection is crossed, the heat transferring medium in hollow cooling anchor pole is able to enter back cavity, and then enters branch by cooling supply hose Reflux line.
Further, the main cooling supply pipeline and main reflux line are insulated piping;The branch cooling supply pipeline, branch return pipe Road, cooling supply hose, return hose are insulation hose.
Insulated piping can guarantee that cooling capacity is not scattered and disappeared inside cooling supply inside hose heat or return hose.
Further, the hollow bolt outer diameter is 30mm, internal diameter 16mm, length 3000mm.
Further, the insulation pipe outside diameter is 11mm, internal diameter 6mm;
The heat-insulated pipe roof insulation tube top disk diameter is 16mm, length 50mm, is insulated at the top of tube passage and heat-insulated pipe Distance be 60-70mm, be insulated tube passage diameter be 3mm.
Further, the separator is to space of the hollow bolt end in addition to cooling supply hose and return hose by heat-insulated The diameter of plug sealing, separator is 16mm, and with a thickness of 30mm, the internal diameter of return hose and cooling supply hose is 2mm, outer diameter 3mm.
Separator and heat-insulated pipe are embedded in mutually 10mm, to guarantee the heat transferring medium in heat-insulated pipe tail portion heat exchanging chamber and back cavity It does not leak mutually, while separator plays the role of fixed heat-insulated pipe.Seal isolation disk is filled to hollow bolt using heat-insulating plug Space of the end in addition to cooling supply hose and return hose can be avoided the heat exchange outside amount incurred, guarantee heat transfer effect.
Further, the anchorage style of the hollow cooling anchor pole uses full length fastening, and Anchor Agent is high thermal conductivity anchoring Agent.
At the top of tunnel and the hollow cooling anchor pole in portion of side can be used in roadway support, while be dropped from the air by refrigerating plant in Warm anchor pole persistently supplies low-temperature heat exchange medium, makes the reduction of mine well temperature, while realizing roadway support, reaches improvement high temperature The purpose of underground thermal pollution.
The present invention also provides a kind of thermal post_buckling roadway supports using the thermal post_buckling roadway support cooling system Cool-down method the described method comprises the following steps:
1) after hollow cooling anchor pole carries out supporting to roadway surrounding rock, the low-temperature heat exchange medium order in refrigerating plant passes through master It is injected after cooling supply pipeline, branch cooling supply pipeline and cooling supply hose in hollow cooling anchor pole;
2) heat exchange occurs for the heat exchanging chamber and country rock that heat transferring medium described in step 1) enters in hollow cooling anchor pole;
3) temperature increases after heat exchange occurs for heat transferring medium and country rock, and the heat transferring medium of heating enters back cavity;
4) sequence of heat transferring medium described in step 3) returns to system after passing through return hose, branch reflux line and main reflux line It is cooled down in device for cooling;
5) low-temperature heat exchange medium after cooling drops country rock according to step 1) to circulation described in step 4) in refrigerating plant Temperature.
Using the thermal post_buckling roadway support cool-down method of the thermal post_buckling roadway support cooling system, can pass through Refrigerating plant persistently supplies low-temperature heat exchange medium, the low-temperature heat exchange medium of circulation to the hollow cooling anchor pole at tunnel top and portion of side Heat exchange constantly occurs with roadway surrounding rock by hollow cooling anchor pole, so that anchor pole is chronically at lower temperature state, reduces country rock Temperature avoids tunnel exposure country rock and conducts heat to tunnel air, the raising of air themperature in the underworkings fundamentally inhibited.
The present invention has the beneficial effect that:
Compared with prior art, the beneficial effects of the invention are that after carrying out supporting to tunnel using hollow cooling anchor pole, Low-temperature heat exchange medium is persistently supplied to the hollow cooling anchor pole at tunnel top and portion of side by refrigerating plant, the low temperature persistently supplied Constantly with roadway surrounding rock heat exchange occurs for heat transferring medium by hollow cooling anchor pole, reduces country rock temperature, avoids tunnel exposure Country rock conducts heat to tunnel air, the raising of air themperature in the underworkings fundamentally inhibited.Realizing the same of roadway support When, achieve the purpose that administer high-temperature mine heat evil.With between tunnel coal and rock exposure and underground are distinguished and admirable formed one every The method of thermosphere is compared, and the possibility cooling effect continuous and effective of thermal insulation layer failure is not present in the present invention;Pass through with mine air conditioner etc. Air cooler directly compares the method for distinguished and admirable cooling, the present invention be it is a kind of directly to cause the raised roadway surrounding rock of airflow temperature into The method of row cooling.
Other features and advantages of the present invention will illustrate in the following description, also, part can become from specification It obtains it is clear that understand through the implementation of the invention.The objectives and other advantages of the invention can be by written explanation Specifically noted structure is achieved and obtained in book, claims and attached drawing.
Detailed description of the invention
Attached drawing is only used for showing the purpose of specific embodiment, and is not to be construed as limiting the invention, in entire attached drawing In, identical reference symbol indicates identical component.
Fig. 1 is thermal post_buckling roadway support cooling system schematic diagram.
Fig. 2 is the enlarged drawing of a-quadrant in Fig. 1.
Fig. 3 is hollow cooling anchor pole sectional view.
Fig. 4 is 90 ° of cross-sectional view of the structure of Fig. 3 radial rotary.
Fig. 5 is insulated pipe construction schematic diagram.
Fig. 6 is diagrammatic cross-section at a-a in Fig. 3.
Fig. 7 is separator radial section schematic diagram.
Wherein: 1- refrigerating plant, the hollow cooling anchor pole of 2-, 2-1- hollow bolt, 2-2- heat-insulated pipe, 2-2-1- are insulated tube top Disk, 2-2-2- insulation tube passage, 2-3- back cavity, 2-4- heat exchanging chamber, 2-5- separator, 2-6- return hose, 2-7- cooling supply are soft Pipe, 2-8- heat-insulating plug, 2-9- anchor rod pallet board, the main cooling supply pipeline of 3-, the main reflux line of 4-, 5- branch cooling supply pipeline, 6- branch return pipe Road.
Specific embodiment
Specifically describing the preferred embodiment of the present invention with reference to the accompanying drawing, wherein attached drawing constitutes the application a part, and Together with embodiments of the present invention for illustrating the principle of the present invention.
As shown in Figure 1, the present invention include refrigerating plant 1, hollow cooling anchor pole 2, main cooling supply pipeline 3, main reflux line 4, Branch cooling supply pipeline 5, branch reflux line 6, wherein hollow cooling anchor pole mainly includes hollow bolt 2-1, heat-insulated pipe 2-2, separator 2-5, return hose 2-6, cooling supply hose 2-7, heat-insulating plug 2-8 and anchor rod pallet board 2-9.The heading driver of development work and preparatory working Make face after completing conventional support work a distance, that is, start main cooling supply pipeline 3 that arrangement is connect with refrigerating plant 1 and Main reflux line 4 is simutaneously arranged branch cooling supply pipeline 5 and branch reflux line 6, and the cooling supply with hollow cooling 2 end interface of anchor pole Hose 2-7 is connected with return hose 2-6.After pipeline connection, refrigerating plant 1 continues to input default temperature to hollow cooling anchor pole 2 The heat transferring medium of degree and pressure, low-temperature heat exchange medium is water in the present embodiment, and input temp is 11 DEG C, flow 0.055L/s, low Warm heat transferring medium enters branch cooling supply pipeline 5 by main cooling supply pipeline 3, and the heat transferring medium in branch cooling supply pipeline 5 passes through cooling supply hose 2-7 enters hollow cooling anchor pole 2, and heat transferring medium enters heat exchanging chamber 2-4 by cooling supply hose 2-7, during low-temperature heat exchange medium passes through With hollow bolt 2-1, Anchor Agent and palisades heat exchange occurs for 2 outer wall of airborne temperature anchor pole sequence, cools down to country rock, is heated by country rock Rear heat transferring medium, which reaches, to be passed through insulation tube passage 2-2 after the top heat-insulated pipe 2-2 and enters back cavity 2-3, in back cavity 2-3 Heat transferring medium flows back into branch reflux line 6 by return hose 2-6, then the main reflux by being connected to branch reflux line 6 Pipeline 4 returns to be cooled down in refrigerating plant 1.Low-temperature heat exchange medium after cooling is again by main cooling supply in refrigerating plant 1 Pipeline 3 enters system, and circulation cools down to country rock.The lasting supply of low-temperature heat exchange medium make hollow cooling anchor pole 2 be chronically at compared with Low temperature state realizes the cooling to roadway surrounding rock with the lasting progress of heat exchange, while also ensuring the supporting effect in tunnel Fruit.
In conclusion the embodiment of the invention provides a kind of branch directly to cool down to high-temperature mine tunnel exposure country rock Cooling system and method are protected, after the present invention carries out supporting to tunnel using hollow cooling anchor pole, is pushed up by refrigerating plant to tunnel The hollow cooling anchor pole in portion and portion of side persistently supplies low-temperature heat exchange medium, and the low-temperature heat exchange medium persistently supplied passes through hollow cooling Constantly with roadway surrounding rock heat exchange occurs for anchor pole, reduces country rock temperature, avoids tunnel exposure country rock and conducts heat to tunnel air, from The raising of air themperature in the underworkings fundamentally inhibited.While realizing roadway support, improvement high-temperature mine is reached The purpose of heat evil.With in tunnel coal and rock exposure compared with the method for forming a thermal insulation layer between underground is distinguished and admirable, the present invention There is no the possibility cooling effect continuous and effectives of thermal insulation layer failure;With mine air conditioner etc. by air cooler directly to distinguished and admirable cooling Method is compared, and the present invention is a kind of directly to the method for causing the raised roadway surrounding rock of airflow temperature to cool down.
The foregoing is only a preferred embodiment of the present invention, but scope of protection of the present invention is not limited thereto, In the technical scope disclosed by the present invention, any changes or substitutions that can be easily thought of by anyone skilled in the art, It should be covered by the protection scope of the present invention.

Claims (7)

1. a kind of thermal post_buckling roadway support cooling system, it is characterised in that: the system mainly include refrigerating plant (1), in Airborne temperature anchor pole (2), main cooling supply pipeline (3), main reflux line (4), branch cooling supply pipeline (5), branch reflux line (6);
The refrigerating plant (1) is connected to main cooling supply pipeline (3) and main reflux line (4);
The main cooling supply pipeline (3) connects branch cooling supply pipeline (5), and each hollow cooling anchor pole (2) passes through branch cooling supply pipeline in system (5) it is connected to main cooling supply pipeline (3), and then is connected to refrigerating plant (1);
The main reflux line (4) connects branch reflux line (6), and each hollow cooling anchor pole (2) passes through branch reflux line in system (6) it is connected to main reflux line (4), and then is connected to refrigerating plant (1);
The refrigerating plant (1), hollow cooling anchor pole (2), main cooling supply pipeline (3), main reflux line (4), branch cooling supply pipeline (5) And branch reflux line (6) connection forming circuit, heat transferring medium can recycle in the circuit;
The hollow cooling anchor pole (2) mainly includes hollow bolt (2-1), heat-insulated pipe (2-2), separator (2-5), return hose (2-6), cooling supply hose (2-7), heat-insulating plug (2-8) and anchor rod pallet board (2-9);
The heat-insulated pipe (2-2) is located at hollow bolt (2-1) inside, and the inner cavity hollow bolt (2-1) is divided by heat-insulated pipe (2-2) to be changed Hot chamber (2-4) and back cavity (2-3), heat exchanging chamber (2-4) and back cavity (2-3) are concentric structure, and inner circle is back cavity (2- 3), outer circle is heat exchanging chamber (2-4), has heat-insulated pipe top plate (2-2-1) and four insulation tube passage (2-2- at the top of heat-insulated pipe (2-2) 2), heat-insulated pipe top plate (2-2-1) and hollow bolt (2-1) are affixed, and four insulation tube passages (2-2-2) are along heat-insulated pipe (2-2) circle Circumferential direction is uniformly distributed, guarantee while heat-insulated pipe bears certain pulling force keep heat transferring medium flow, back cavity (2-3) with change Hot chamber (2-4) is embedded in separator (2-5) by insulation tube passage (2-2-2) connection, the heat-insulated pipe bottom (2-2), can guarantee absolutely Heat pipe tail portion heat exchanging chamber does not leak mutually with the heat transferring medium in back cavity, while separator can play the work of fixed heat-insulated pipe With;
The separator (2-5) keeps heat-insulated pipe (2-2) and cooling supply hose (2-7) and return hose (2-6) sealed to each other, and cooling supply is soft Pipe (2-7) insertion separator (2-5) and heat exchanging chamber (2-4) be connected to, return hose (2-6) insertion separator (2-5) with flow back Chamber (2-3) be connected to;
Sky of the separator (2-5) to the hollow bolt end (2-1) in addition to cooling supply hose (2-7) and return hose (2-6) Between sealed by heat-insulating plug (2-8), can be avoided the heat exchange outside amount incurred, guarantee that heat transfer effect, the diameter of separator (2-5) are 16mm, with a thickness of 30mm;
The main cooling supply pipeline (3) and main reflux line (4) are insulated piping;The branch cooling supply pipeline (5), branch reflux line (6), cooling supply hose (2-7) and return hose (2-6) are insulation hose.
2. thermal post_buckling roadway support cooling system according to claim 1, it is characterised in that: the branch cooling supply pipeline (5) it is connected to heat exchanging chamber (2-4) by cooling supply hose (2-7), branch reflux line (6) and back cavity (2-3) pass through return hose (2-6) connection, the hollow heat transferring medium to cool down in anchor pole (2) is able to enter back cavity (2-3), and then passes through return hose (2- 6) enter branch reflux line (6).
3. thermal post_buckling roadway support cooling system according to claim 1, it is characterised in that: the hollow bolt (2- 1) outer diameter is 30mm, internal diameter 16mm, length 3000mm.
4. thermal post_buckling roadway support cooling system according to claim 1, it is characterised in that: the heat-insulated pipe (2-2) Outer diameter is 11mm, internal diameter 6mm;
Heat-insulated pipe (2-2) roof insulation tube top disk (2-2-1) diameter is 16mm, with a thickness of 50mm, is insulated tube passage (2-2- 2) at the top of heat-insulated pipe (2-2) at a distance from be 60-70mm, insulation tube passage (2-2-2) diameter be 3mm.
5. thermal post_buckling roadway support cooling system according to claim 1, it is characterised in that: return hose (2-6) and The internal diameter of cooling supply hose (2-7) is 2mm, outer diameter 3mm.
6. thermal post_buckling roadway support cooling system according to claim 2, it is characterised in that: the hollow cooling anchor pole (2) anchorage style uses full length fastening, and Anchor Agent is high thermal conductivity Anchor Agent.
7. using the thermal post_buckling roadway support of thermal post_buckling roadway support cooling system described in any one of any one of claims 1 to 66 Cool-down method, it is characterised in that: the described method comprises the following steps:
1) after hollow cooling anchor pole (2) carries out supporting to roadway surrounding rock, the low-temperature heat exchange medium order in refrigerating plant (1) passes through Main cooling supply pipeline (3), branch cooling supply pipeline (5) and cooling supply hose (2-7) are injected afterwards in hollow cooling anchor pole (2);
2) heat exchange occurs for the heat exchanging chamber (2-4) and country rock that heat transferring medium described in step 1) enters in hollow cooling anchor pole (2);
3) temperature increases after heat exchange occurs for heat transferring medium and country rock, and the heat transferring medium of heating enters back cavity (2-3);
4) sequence of heat transferring medium described in step 3) passes through return hose (2-6), branch reflux line (6) and main reflux line (4) It returns and is cooled down in refrigerating plant (1) afterwards;
5) low-temperature heat exchange medium after cooling drops country rock according to step 1) to circulation described in step 4) in refrigerating plant (1) Temperature.
CN201710017712.8A 2017-01-10 2017-01-10 A kind of thermal post_buckling roadway support cooling system and method Active CN106593511B (en)

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CN109945534A (en) * 2019-03-07 2019-06-28 中国矿业大学(北京) A kind of mine heat energy system and construction method
CN112096413A (en) * 2020-09-22 2020-12-18 中铁二院工程集团有限责任公司 Heat insulation and cooling system suitable for high-ground-temperature tunnel and implementation method thereof
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