CN112097410A - Waste rock mountain waste heat recycling method and device - Google Patents
Waste rock mountain waste heat recycling method and device Download PDFInfo
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- CN112097410A CN112097410A CN202010992571.3A CN202010992571A CN112097410A CN 112097410 A CN112097410 A CN 112097410A CN 202010992571 A CN202010992571 A CN 202010992571A CN 112097410 A CN112097410 A CN 112097410A
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- heat
- waste
- conduction pipe
- temperature
- protective cylinder
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24T—GEOTHERMAL COLLECTORS; GEOTHERMAL SYSTEMS
- F24T10/00—Geothermal collectors
- F24T10/40—Geothermal collectors operated without external energy sources, e.g. using thermosiphonic circulation or heat pipes
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
- F28D15/00—Heat-exchange apparatus with the intermediate heat-transfer medium in closed tubes passing into or through the conduit walls ; Heat-exchange apparatus employing intermediate heat-transfer medium or bodies
- F28D15/02—Heat-exchange apparatus with the intermediate heat-transfer medium in closed tubes passing into or through the conduit walls ; Heat-exchange apparatus employing intermediate heat-transfer medium or bodies in which the medium condenses and evaporates, e.g. heat pipes
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
- F28D21/00—Heat-exchange apparatus not covered by any of the groups F28D1/00 - F28D20/00
- F28D21/0001—Recuperative heat exchangers
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F27/00—Control arrangements or safety devices specially adapted for heat-exchange or heat-transfer apparatus
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/10—Geothermal energy
Abstract
The invention relates to a waste rock mountain waste heat recycling method and a device, wherein heat released from coal gangue is converted into heat energy of water by a waste rock mountain waste heat utilization device; the method comprises the following steps: s1, collecting waste heat, arranging the lower end of the protective cylinder in a waste rock hill where the waste heat is to be recovered, and heating and evaporating the medium in the heat conduction pipe and taking away the heat; s2, performing heat exchange, wherein the heat release end of the heat conduction pipe is connected with the heat storage water tank, medium steam in the heat conduction pipe is condensed into liquid, heat is released at the same time, the liquid in the heat storage water tank is heated, and the waste heat recycling device comprises a protective cylinder, the heat conduction pipe, the heat storage water tank and a temperature detection device; the temperature detection device comprises a wireless temperature detector and a water temperature measuring instrument, the temperature detection device monitors the temperatures of the heat conduction pipe and the heat storage water tank in real time, and the data acquisition module acquires temperature data of the temperature detection device in real time; the invention can release and utilize heat energy stored in the coal gangue dump, and relates to the technical field of heat energy utilization.
Description
Technical Field
The invention relates to the technical field of heat energy utilization, in particular to a waste rock mountain waste heat recycling method and device.
Background
The annual coal yield of China is about 20 hundred million tons, and the China is the first in the world. Coal gangue is a main solid waste generated in coal production and processing. The yield of the coal gangue accounts for about 10% -25% of the coal mining amount. Estimated by the waste rock discharge amount accounting for 20% of the raw coal production, more than 4 hundred million tons of newly increased waste rocks are added every year, and except about 6000 million tons of comprehensive utilization, most of the rest waste rocks are mixed and stacked nearby to form a coal gangue dump. According to statistics, 1600 coal gangue hills are formed in China at present, the accumulated amount is about more than 40 hundred million tons, and the occupied area is nearly 30 ten thousand mu. Due to the components, the stacking mode, the stacking topography and the like of the coal gangue, about one/3 of coal gangue mountain in China is spontaneously combusted. The spontaneous combustion of the coal gangue dump wastes a large amount of valuable energy and causes great pollution to the environment. The heat energy stored in the gangue dump is wasted. Therefore, it is urgently needed to develop a method for utilizing the heat energy of the coal gangue with high conversion rate.
Disclosure of Invention
In order to overcome the defects in the prior art, the waste heat recycling method and the waste heat recycling device for the gangue dump are provided, wherein the waste heat recycling method and the waste heat recycling device for the gangue dump are used for releasing heat energy stored in the gangue dump and heating cold water by using the heat released from the gangue.
In order to solve the technical problems, the invention adopts the technical scheme that:
a waste heat recycling method for a gangue dump is characterized by comprising the following steps: converting heat released from the coal gangue into heat energy of water by a waste heat utilization device of the gangue dump;
s1, collecting waste heat, namely arranging the lower end of the protective cylinder in a waste rock mountain of which the waste heat is to be recovered, heating the heat-taking end of the heat-conducting pipe by the heat of the waste rock mountain through a heat exchange hole at the lower end of the protective cylinder, wherein the heat-taking end of the heat-conducting pipe is an evaporation section, and a medium in the heat-conducting pipe is heated and evaporated to take away the heat;
s2, performing heat exchange, wherein the heat release end of the heat conduction pipe is connected with the heat storage water tank, the heat release end of the heat conduction pipe is a condensation section, steam generated by evaporation of a medium in the heat conduction pipe flows to the condensation section of the heat conduction pipe through a central channel of the heat conduction pipe, is condensed into liquid, releases heat at the same time, and heats the liquid in the heat storage water tank;
monitoring the temperatures of the heat conduction pipe and the heat storage water tank in real time through a temperature detection device, and filling cooling liquid into the protective cylinder through a cooling device when the temperature of the heat conduction pipe is higher than a set upper limit value of the temperature;
the temperature data of the temperature detection device is collected in real time through the data collection module and transmitted to the control terminal through the 4G communication module.
Further, the upper limit value of the temperature setting of the temperature conduction pipe is 300 ℃.
Furthermore, a safety valve is arranged at the top of the protecting cylinder, and when the pressure in the protecting cylinder is greater than 0.5MPa, the safety valve automatically starts to release the pressure.
Further, the diameter of the protective cylinder is 50mm-150 mm.
Further, when the temperature detection device monitors that the temperature of the heat conduction pipe or the heat storage water tank exceeds a set value, the alarm module of the data acquisition module sends an alarm signal.
A waste heat recycling device for a waste rock hill comprises a protective cylinder, a heat conduction pipe, a heat storage water tank and a temperature detection device;
the protective cylinder is hollow and cylindrical, the lower end of the protective cylinder is a heat collection end, the heat conduction pipe is fixedly arranged in the protective cylinder along the axis direction of the protective cylinder, the lower end of the heat conduction pipe is a heat taking end, the upper end of the heat conduction pipe is a heat release end, and the heat taking end and the heat release end are connected through a transmission section;
the heat release end of the heat conduction pipe extends out of the upper end of the protective cylinder and is connected with the heat storage water tank;
the temperature detection device comprises a wireless temperature detector and a water temperature measuring instrument, the wireless temperature detector is fixedly arranged at the heat taking end of the heat conduction pipe, and the water temperature measuring instrument is arranged at the upper end of the heat storage water tank;
one side of protecting a section of thick bamboo is provided with the heat sink, the heat sink includes cooling tube, valve and manometer, cooling tube one end and the inner chamber intercommunication that protects a section of thick bamboo, the other end and water source intercommunication, the valve setting is close to one side of protecting a section of thick bamboo on the cooling tube.
Furthermore, heat exchange holes are formed in the heat collection end of the protective cylinder and are uniformly distributed at the heat collection end of the protective cylinder, the diameter of each heat exchange hole is 5mm, and the distance between the heat exchange holes is 50 mm.
Further, the distance between the heat conduction pipe and the inner wall of the protective cylinder is larger than 10 mm.
Further, a safety valve is arranged at the top of the protective cylinder.
Furthermore, still include data acquisition device, data acquisition device includes collection module and 4G communication module, collection module is connected with temperature-detecting device to outwards transmit temperature information through 4G communication module, collection module still is provided with alarm module.
Compared with the prior art, the invention has the following beneficial effects:
1. the waste heat utilization device can be directly constructed on the original gangue dump, the damage to vegetation is small, the original ecological environment is protected, the treatment cost is saved, the waste heat utilization device can be used for treating the areas with higher underground temperature in a slicing mode, and the treatment cost is reduced.
2. The invention can play a role of cooling the area with higher temperature of the gangue dump, prevent the spontaneous combustion of the gangue caused by the temperature rise and reduce the generation of harmful gas; for the area with lower temperature of the gangue dump, the temperature can be prevented from rising, and spontaneous combustion of the gangue and generation of harmful gas are avoided; for the gangue dump which is spontaneously combusted, the product can be adopted to arrange an isolation belt between the spontaneous combustion and the unburned combustion, and the two sides are respectively cooled and treated or the spontaneous combustion area is separately treated.
3. The invention can also utilize heat energy to convert underground heat energy into useful heat source.
Drawings
The following will explain embodiments of the present invention in further detail through the accompanying drawings.
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic view of the structure of the casing of the present invention;
FIG. 3 is a schematic view of a heat pipe structure according to the present invention;
in the figure: the device comprises a protective cylinder 1, a heat exchange hole 11, a safety valve 12, a heat conducting pipe 2, a heat taking end 21, a heat releasing end 22, a transmission section 23, a heat storage water tank 3, a temperature detection device 4, a wireless temperature detector 41, a water temperature measuring instrument 42, a cooling device 5, a cooling pipe 51 and a valve 52.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Example (b):
as shown in fig. 1 to 3, a method and a device for recycling waste heat of a gangue dump are provided, wherein the waste heat released from coal gangue is converted into heat energy of water by a waste heat utilization device of the gangue dump;
s1, collecting waste heat, namely arranging the lower end of the protective cylinder in a waste rock mountain of which the waste heat is to be recovered, heating the heat-taking end of the heat-conducting pipe by the heat of the waste rock mountain through a heat exchange hole at the lower end of the protective cylinder, wherein the heat-taking end of the heat-conducting pipe is an evaporation section, and a medium in the heat-conducting pipe is heated and evaporated to take away the heat;
s2, performing heat exchange, wherein the heat release end of the heat conduction pipe is connected with the heat storage water tank, the heat release end of the heat conduction pipe is a condensation section, steam generated by evaporation of a medium in the heat conduction pipe flows to the condensation section of the heat conduction pipe through a central channel of the heat conduction pipe, is condensed into liquid, releases heat at the same time, and heats the liquid in the heat storage water tank;
the temperature detection device 4 monitors the temperature of the heat taking end of the heat conduction pipe and the temperature of the heat storage water tank in real time, when the wireless temperature detector detects that the temperature is higher than 300 ℃, a valve of the cooling device is opened, cooling liquid is filled into the protective cylinder through the cooling pipe, so that the purpose of cooling is achieved, and when the temperature is lower than 50 ℃, the valve is closed to stop cooling.
The temperature data of the temperature detection device is collected in real time through the data collection module and transmitted to the control terminal through the 4G communication module.
The top of the casing 1 is provided with a safety valve 12, because the system is in a high-temperature operation state, high-temperature steam can be generated in the operation process, the pressure in the casing can be increased, and when the pressure is greater than 0.5MPa, the safety valve automatically starts to release the pressure, so that danger is avoided.
When the temperature detection device monitors that the temperature of the heat conduction pipe or the heat storage water tank exceeds a set value, the alarm module of the data acquisition module sends an alarm signal.
The waste rock mountain waste heat utilization device comprises a protective cylinder 1, a heat conduction pipe 2, a heat storage water tank 3, a temperature detection device 4 and a cooling device 5;
the heat pipe 2 comprises a heat taking end 21, a heat releasing end 22 and a transmission section 23, the lower end of the heat pipe 2 is the heat taking end 21, the upper end of the heat pipe 2 is the heat releasing end 22, and the heat taking end 21 and the heat releasing end 22 are connected through the transmission section 23;
the lower extreme of protecting a 1 is provided with heat transfer hole 11, and heat transfer hole 11 equipartition is protecting the lower extreme of a 1, and heat transfer hole 11 aperture is 5mm, and adjacent heat transfer hole interval is 50mm for the heat is followed the hillock and is led the heat pipe transmission.
The heat release end 22 of the heat conduction pipe 2 extends out of the upper end of the protective cylinder 1 and is connected with the heat storage water tank 3 and used for transferring heat to the water tank;
the pipe diameter of the heat conduction pipe is selected according to the diameter of the protective cylinder, and spaces of 10mm are reserved on two sides of the interior of the protective cylinder respectively.
The temperature detection device 4 comprises a wireless temperature detector 41 and a water temperature measuring instrument 42, the wireless temperature detector 41 is fixedly arranged at the heat taking end 21 of the heat conduction pipe 2, the water temperature measuring instrument 42 is arranged at the upper end of the heat storage water tank 3, and the temperature of the heat taking end of the heat conduction pipe and the temperature of the heat storage water tank are monitored in real time.
The cooling device 5 comprises a cooling pipe 51, a valve 52 and a pressure gauge, one end of the cooling pipe 51 is communicated with the inner cavity of the protection tube 1, the other end of the cooling pipe is communicated with a water source, and the valve 52 is arranged on the cooling pipe 51 and close to one side of the protection tube 1.
The data acquisition device comprises an acquisition module and a 4G communication module, the acquisition module is connected with the temperature detection device, the acquisition module acquires the temperature of the temperature detection device in real time and transmits the temperature information outwards through the 4G communication module, and the acquisition module is further provided with an alarm module and automatically sends out a warning signal when the temperature exceeds a set value.
The acquisition module adopts a TN-TA wireless acquisition series of internet of things concentrators, and the parameters are shown in the following table:
the specific parameters of the communication module are shown in the following table:
although only the preferred embodiments of the present invention have been described in detail, the present invention is not limited to the above embodiments, and various changes can be made without departing from the spirit of the present invention within the knowledge of those skilled in the art, and all changes are encompassed in the scope of the present invention.
Claims (10)
1. A waste heat recycling method for a gangue dump is characterized by comprising the following steps: converting heat released from the coal gangue into heat energy of water by a waste heat utilization device of the gangue dump;
s1, collecting waste heat, namely arranging the lower end of the protective cylinder in a waste rock mountain of which the waste heat is to be recovered, heating the heat-taking end of the heat-conducting pipe by the heat of the waste rock mountain through a heat exchange hole at the lower end of the protective cylinder, wherein the heat-taking end of the heat-conducting pipe is an evaporation section, and a medium in the heat-conducting pipe is heated and evaporated to take away the heat;
s2, performing heat exchange, wherein the heat release end of the heat conduction pipe is connected with the heat storage water tank, the heat release end of the heat conduction pipe is a condensation section, steam generated by evaporation of a medium in the heat conduction pipe flows to the condensation section of the heat conduction pipe through a central channel of the heat conduction pipe, is condensed into liquid, releases heat at the same time, and heats the liquid in the heat storage water tank;
monitoring the temperatures of the heat conduction pipe and the heat storage water tank in real time through a temperature detection device, and filling cooling liquid into the protective cylinder through a cooling device when the temperature of the heat conduction pipe is higher than a set upper limit value of the temperature;
the temperature data of the temperature detection device is collected in real time through the data collection module and transmitted to the control terminal through the 4G communication module.
2. The waste rock mountain waste heat recycling method according to claim 1, characterized in that: the upper limit value of the temperature setting of the temperature conduction pipe is 300 ℃.
3. The waste rock mountain waste heat recycling method according to claim 1 or 2, characterized in that: the top of the protecting cylinder is provided with a safety valve, and when the pressure in the protecting cylinder is more than 0.5MPa, the safety valve automatically starts to release the pressure.
4. The waste rock mountain waste heat recycling method according to claim 1 or 2, characterized in that: the diameter of the protective cylinder is 50mm-150 mm.
5. The waste rock mountain waste heat recycling method according to claim 1 or 2, characterized in that: when the temperature detection device monitors that the temperature of the heat conduction pipe or the heat storage water tank exceeds a set value, the alarm module of the data acquisition module sends an alarm signal.
6. The utility model provides a hillock waste heat recovery utilizes device which characterized in that: comprises a protective cylinder (1), a heat conduction pipe (2), a heat storage water tank (3) and a temperature detection device (4);
the heat pipe type solar energy heat collector is characterized in that the protective cylinder (1) is hollow and cylindrical, the lower end of the protective cylinder (1) is a heat collection end, the heat pipe (2) is fixedly arranged in the protective cylinder (1) along the axis direction of the protective cylinder (1), the lower end of the heat pipe (2) is a heat taking end (21), the upper end of the heat pipe (2) is a heat releasing end (22), and the heat taking end (21) is connected with the heat releasing end (22) through a transmission section (23);
the heat release end (22) of the heat conduction pipe (2) extends out of the upper end of the protective cylinder (1) and is connected with the heat storage water tank (3);
the temperature detection device (4) comprises a wireless temperature detector (41) and a water temperature measuring instrument (42), the wireless temperature detector (41) is fixedly arranged at the heat taking end (21) of the heat conduction pipe (2), and the water temperature measuring instrument (42) is arranged at the upper end of the heat storage water tank (3);
protect one side of a section of thick bamboo (2) and be provided with heat sink (5), heat sink (5) are including cooling tube (51), valve (52) and manometer, cooling tube (51) one end and the inner chamber intercommunication that protects a section of thick bamboo (1), the other end and water source intercommunication, valve (52) set up the one side that is close to on cooling tube (51) and protects a section of thick bamboo (1).
7. The waste rock mountain waste heat recycling device of claim 6, characterized in that: the heat collecting end of the protective cylinder (1) is provided with heat exchange holes (11), the heat exchange holes (11) are uniformly distributed at the heat collecting end of the protective cylinder (1), the hole diameter of each heat exchange hole (11) is 5mm, and the distance between the heat exchange holes is 50 mm.
8. The waste rock mountain waste heat recycling device of claim 6 or 7, characterized in that: the distance between the heat conduction pipe (2) and the inner wall of the protective cylinder (1) is larger than 10 mm.
9. The waste rock mountain waste heat recycling device of claim 6 or 7, characterized in that: the top of the protective cylinder (1) is provided with a safety valve (12).
10. The waste rock mountain waste heat recycling device of claim 6 or 7, characterized in that: still include data acquisition device, data acquisition device includes collection module and 4G communication module, collection module is connected with temperature-detecting device to outwards transmit temperature information through 4G communication module, collection module still is provided with alarm module.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN202010992571.3A CN112097410A (en) | 2020-09-21 | 2020-09-21 | Waste rock mountain waste heat recycling method and device |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202010992571.3A CN112097410A (en) | 2020-09-21 | 2020-09-21 | Waste rock mountain waste heat recycling method and device |
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| CN112097410A true CN112097410A (en) | 2020-12-18 |
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| CN202010992571.3A Pending CN112097410A (en) | 2020-09-21 | 2020-09-21 | Waste rock mountain waste heat recycling method and device |
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Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN101696829A (en) * | 2009-10-30 | 2010-04-21 | 龚智勇 | Method for remotely transferring and storing geothermal energy, device and application thereof |
| CN105546860A (en) * | 2016-02-17 | 2016-05-04 | 姚国敏 | Device and method for extracting and using geothermal energy |
| CN107044275A (en) * | 2017-03-29 | 2017-08-15 | 中国石油大学(华东) | Utilize deep geothermal resources thermal recovery shale gas method and system |
| CN107782004A (en) * | 2017-11-01 | 2018-03-09 | 中国矿业大学 | A kind of method that geothermal energy extraction improves gas pumping rate |
| CN109083633A (en) * | 2018-06-22 | 2018-12-25 | 山西元森科技有限公司 | A kind of hillock residual-heat utilization method |
| CN109798793A (en) * | 2018-12-25 | 2019-05-24 | 河北工程大学 | A kind of heat-pipe apparatus moving heat for coal gangue hill depth |
| CN210159107U (en) * | 2019-03-07 | 2020-03-20 | 牛金荣 | Gangue layer heat abstractor |
-
2020
- 2020-09-21 CN CN202010992571.3A patent/CN112097410A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101696829A (en) * | 2009-10-30 | 2010-04-21 | 龚智勇 | Method for remotely transferring and storing geothermal energy, device and application thereof |
| CN105546860A (en) * | 2016-02-17 | 2016-05-04 | 姚国敏 | Device and method for extracting and using geothermal energy |
| CN107044275A (en) * | 2017-03-29 | 2017-08-15 | 中国石油大学(华东) | Utilize deep geothermal resources thermal recovery shale gas method and system |
| CN107782004A (en) * | 2017-11-01 | 2018-03-09 | 中国矿业大学 | A kind of method that geothermal energy extraction improves gas pumping rate |
| CN109083633A (en) * | 2018-06-22 | 2018-12-25 | 山西元森科技有限公司 | A kind of hillock residual-heat utilization method |
| CN109798793A (en) * | 2018-12-25 | 2019-05-24 | 河北工程大学 | A kind of heat-pipe apparatus moving heat for coal gangue hill depth |
| CN210159107U (en) * | 2019-03-07 | 2020-03-20 | 牛金荣 | Gangue layer heat abstractor |
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Application publication date: 20201218 |
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