CN108507284B - Device for vacuum drying and heat value recycling of flotation metal mineral powder - Google Patents
Device for vacuum drying and heat value recycling of flotation metal mineral powder Download PDFInfo
- Publication number
- CN108507284B CN108507284B CN201810400132.1A CN201810400132A CN108507284B CN 108507284 B CN108507284 B CN 108507284B CN 201810400132 A CN201810400132 A CN 201810400132A CN 108507284 B CN108507284 B CN 108507284B
- Authority
- CN
- China
- Prior art keywords
- heat
- water
- tank
- drying
- gas
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 239000000843 powder Substances 0.000 title claims abstract description 43
- 229910052500 inorganic mineral Inorganic materials 0.000 title claims abstract description 40
- 239000011707 mineral Substances 0.000 title claims abstract description 40
- 239000002184 metal Substances 0.000 title claims abstract description 34
- 238000005188 flotation Methods 0.000 title claims abstract description 10
- 238000004064 recycling Methods 0.000 title claims abstract description 8
- 238000001291 vacuum drying Methods 0.000 title claims abstract description 5
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 126
- 238000001035 drying Methods 0.000 claims abstract description 63
- 238000000926 separation method Methods 0.000 claims abstract description 38
- 239000007788 liquid Substances 0.000 claims abstract description 32
- 238000005338 heat storage Methods 0.000 claims abstract description 17
- 239000007787 solid Substances 0.000 claims abstract description 9
- 230000001502 supplementing effect Effects 0.000 claims abstract description 7
- 239000011229 interlayer Substances 0.000 claims description 19
- 238000011084 recovery Methods 0.000 claims description 5
- 238000000034 method Methods 0.000 abstract description 17
- 239000007789 gas Substances 0.000 abstract description 12
- 238000010438 heat treatment Methods 0.000 abstract description 7
- 239000002918 waste heat Substances 0.000 abstract description 6
- 238000004519 manufacturing process Methods 0.000 abstract description 2
- 239000000463 material Substances 0.000 description 7
- 239000010410 layer Substances 0.000 description 4
- 239000000110 cooling liquid Substances 0.000 description 3
- 239000000428 dust Substances 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 2
- 238000007599 discharging Methods 0.000 description 2
- 230000005484 gravity Effects 0.000 description 2
- 239000002245 particle Substances 0.000 description 2
- 238000009834 vaporization Methods 0.000 description 2
- 230000008016 vaporization Effects 0.000 description 2
- 238000007664 blowing Methods 0.000 description 1
- 229910002092 carbon dioxide Inorganic materials 0.000 description 1
- 239000001569 carbon dioxide Substances 0.000 description 1
- 239000003245 coal Substances 0.000 description 1
- 230000008602 contraction Effects 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000006477 desulfuration reaction Methods 0.000 description 1
- 230000023556 desulfurization Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 238000001704 evaporation Methods 0.000 description 1
- 230000008020 evaporation Effects 0.000 description 1
- 238000007667 floating Methods 0.000 description 1
- 239000002737 fuel gas Substances 0.000 description 1
- JEGUKCSWCFPDGT-UHFFFAOYSA-N h2o hydrate Chemical compound O.O JEGUKCSWCFPDGT-UHFFFAOYSA-N 0.000 description 1
- 239000012774 insulation material Substances 0.000 description 1
- 238000005065 mining Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000004321 preservation Methods 0.000 description 1
- 239000003507 refrigerant Substances 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F26—DRYING
- F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
- F26B9/00—Machines or apparatus for drying solid materials or objects at rest or with only local agitation; Domestic airing cupboards
- F26B9/06—Machines or apparatus for drying solid materials or objects at rest or with only local agitation; Domestic airing cupboards in stationary drums or chambers
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F26—DRYING
- F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
- F26B23/00—Heating arrangements
- F26B23/001—Heating arrangements using waste heat
- F26B23/002—Heating arrangements using waste heat recovered from dryer exhaust gases
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F26—DRYING
- F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
- F26B23/00—Heating arrangements
- F26B23/10—Heating arrangements using tubes or passages containing heated fluids, e.g. acting as radiative elements; Closed-loop systems
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F26—DRYING
- F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
- F26B5/00—Drying solid materials or objects by processes not involving the application of heat
- F26B5/04—Drying solid materials or objects by processes not involving the application of heat by evaporation or sublimation of moisture under reduced pressure, e.g. in a vacuum
- F26B5/041—Drying solid materials or objects by processes not involving the application of heat by evaporation or sublimation of moisture under reduced pressure, e.g. in a vacuum for drying flowable materials, e.g. suspensions, bulk goods, in a continuous operation, e.g. with locks or other air tight arrangements for charging/discharging
-
- 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
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/10—Greenhouse gas [GHG] capture, material saving, heat recovery or other energy efficient measures, e.g. motor control, characterised by manufacturing processes, e.g. for rolling metal or metal working
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Sustainable Development (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Health & Medical Sciences (AREA)
- Molecular Biology (AREA)
- Drying Of Solid Materials (AREA)
Abstract
The invention discloses a device for vacuum drying and heat value recycling of flotation metal mineral powder, which comprises a heat storage water tank, a first water pump, an air compressor heat return module, a drying tank, a first heat exchange device, a gas-liquid separation device, a diaphragm type buffer tank, a water ring type vacuum pump, a second heat exchange device, a water ring type vacuum pump water supplementing and heat energy utilizing device, wherein the drying tank internally comprises a gas-liquid-solid separation device. The heat source of the drying device mainly utilizes waste heat generated by the air compressor and other auxiliary equipment in the front-stage production process, and can recycle heat energy in the drying process. The heat energy is transferred to the metal mineral powder, so that liquid water among the mineral powder is quickly vaporized to be changed into water vapor, and the water vapor is changed into liquid water after two solid-gas separation, liquid-gas separation and heat transfer, so that the moisture in the mineral powder is vaporized, and the purpose of drying the mineral powder is achieved; and the heat released by the liquefaction of the evaporated vapor is reused for heating the mineral powder by using a special process.
Description
Technical Field
The invention belongs to a technology for drying flotation metal mineral powder, which is suitable for drying finer particles which are easy to blow by wind; the device is also suitable for the vacuum drying and heat value recycling of the floating metal mineral powder for drying other materials with higher density but finer particles.
Background
At present, most domestic metal ores are purified by adopting a floatation method, and then the dried metal ore powder is transported to a downstream factory for further processing; at present, a heated kang method, a flame heating and dust collecting method, a steam heating method and the like are commonly adopted for drying. Regardless of the method, the heat source is not separated, and the gas, the coal or the electricity is generated; taking a steam heating method which has large treatment capacity and is commonly adopted at present as an example; at present, the heat energy utilization rate of a domestic small-sized (1-10 tons) boiler is about 60%, and the electric power and the fuel gas can be higher. And a discontinuous working mode of a drying site is added; the heat value utilization rate for the actual evaporation of water is possibly less than 15%, even some are individually less than 10%; in addition, the small boiler has the environmental pollution problems of desulfurization, denitration, carbon dioxide emission and the like.
Disclosure of Invention
The invention aims to overcome the defects of the prior art and provide the mineral powder which is recycled by waste heat generated by a hollow press and other auxiliary equipment in the flotation process and is subjected to further drying and flotation and then water discharge through a filter press.
The invention is realized by the following technical scheme:
the device comprises a heat storage water tank, a first water pump, an air compressor heat recovery module, a drying tank, a first heat exchange device, a gas-liquid separation device tank, a diaphragm type buffer tank, a water ring type vacuum pump, a second heat exchange device, a water ring type vacuum pump water supplementing and heat energy utilizing device, a second water pump, a heat pump device and a valve, wherein the drying tank internally comprises a gas-liquid-solid separation device; the water in the heat storage water tank is heated by the first water pump and the air compressor heat recovery module and then is connected with the bottom of the interlayer of the drying tank, heat is transferred to metal mineral powder at the bottom of the drying tank through the drying tank, water is evaporated, hot water in the drying tank transfers heat to the metal mineral powder, cooled cold water returns to the heat storage water tank through the top of the interlayer of the drying tank, and an independent circulating system is formed; the vaporized vapor in the drying tank moves towards the water ring type vacuum pump, the vapor is discharged from the upper part of a gas-liquid-solid separation device arranged at the top in the drying tank and is connected with the inlet end of the upper part of the gas path side of the first heat exchange device, the outlet end of the lower part of the gas path side of the first heat exchange device is connected with the inlet end of the middle part of the gas path side of the gas-liquid separation device tank through a pipeline, the upper outlet end of the gas-liquid separation device tank is connected with the inlet end of the water ring type vacuum pump through a pipeline, and the outlet end of the water ring type vacuum pump is connected with a water supplementing and heat energy utilizing device of the water ring type vacuum pump; the cold water side of the heat pump device sequentially forms a closed cycle with the second water pump, the second heat exchange device, the diaphragm buffer tank, the gas-liquid separation device tank interlayer, the first heat exchange device and the cold water side of the heat pump device through pipelines, and the heat energy in the second heat exchange device, the gas-liquid separation device tank layer and the first heat exchange device is collected under the action of the heat pump device and then is sent to the heat storage water tank for being reused for mineral powder drying through the pipeline and the valve switching of the hot water side of the heat pump device.
The invention has the advantages that: the heat source of the drying device mainly utilizes waste heat generated by the air compressor and other auxiliary equipment in the front-stage production process, and can recycle heat energy in the drying process. The heat energy is transferred to the metal mineral powder, so that liquid water among the mineral powder is quickly vaporized to be changed into water vapor, and the water vapor is changed into liquid water after two solid-gas separation, liquid-gas separation and heat transfer. Waste heat generated by a pneumatic press and other auxiliary equipment in the flotation process is transmitted to the metal mineral powder through a special device, so that moisture in the mineral powder is evaporated, and the purpose of drying the mineral powder is achieved; and the heat released by the liquefaction of the evaporated vapor is reused for heating the mineral powder by using a special process. The invention recycles water, thus greatly saving water resources. In addition, the heat energy surplus of the air compressor in summer can be used for heating bath water.
Drawings
Fig. 1 is a schematic structural view of the present invention.
Detailed Description
Examples: the device comprises a heat storage water tank 1, a first water pump 2, an air compressor heat return module 4, a drying tank 5, a first heat exchange device 7, a gas-liquid separation device 8, a diaphragm type buffer tank 9, a water ring type vacuum pump 10, a second heat exchange device 11 and a water ring type vacuum pump water supplementing and heat energy utilizing device 12, wherein the drying tank 5 internally comprises a gas-liquid-solid separation device 6; the water in the heat storage water tank 1 is heated by the water pump 2 and the air compressor heat return module 4 and then is connected with the bottom of the interlayer of the drying tank 5, heat is transferred to metal mineral powder at the bottom of the drying tank 5 through the drying tank 5, water is evaporated, hot water entering the drying tank 5 transfers heat to the metal mineral powder, cooled cold water returns to the heat storage water tank 1 through the top of the interlayer of the drying tank 5, and an independent circulating system is formed; the vaporized vapor in the drying tank 5 moves towards the direction of the vacuum pump 10, the upper part of the gas-liquid-solid separation device 6 arranged at the top in the drying tank 5 is discharged and connected with the inlet end of the upper part of the gas path of the first heat exchange device 7, the outlet end of the lower part of the gas path of the first heat exchange device 7 is connected with the inlet end of the middle part of the gas path of the gas-liquid separation device tank 8 through a pipeline, the upper outlet end of the gas-liquid separation device tank 8 is connected with the inlet end of the water-ring vacuum pump 10 through a pipeline, and the outlet end of the water-ring vacuum pump 10 is connected with the heat energy utilization device 12.
The cold water side of the heat pump device 3 forms a closed cycle with the water pump 13, the first heat exchange device 7, the buffer tank 9, the interlayer of the gas-liquid separation device tank 8, the second heat exchange device 11 and the cold water side of the heat pump device 3 in sequence through pipelines, the interlayer of the second heat exchange device 11, the gas-liquid separation device tank 8 and the heat energy in the first heat exchange device 7 are collected under the action of the heat pump device 3, and the heat energy is sent into the heat storage water tank 1 to be dried by new mineral powder through the pipelines on the hot water side of the heat pump device 3 and the switching of the valves 14, 15 and 16.
The metal mineral powder in the invention enters from one side of the drying tank 5 and is discharged from the other side, the heat storage water tank 1 with heat preservation in the heat source part plays a role in storing heat energy, and the heat in the heat pump device 3 and the air compressor heat return module 4 is continuously transferred to the drying tank 5 through the first water pump 2 (the bottom of the drying tank 5 is a water inlet and the upper part is a water outlet), so that the metal mineral powder in the container is transferred, and the water is evaporated. The circulation of the heat pump device 3 and the air compressor heat return module 4 is sequential, (because the heat source of the air compressor heat return module 4 is from the waste heat of the air compressor, the waste heat is preferentially selected, and the heat of the heat pump device 3 is taken for supplementing under the condition of a plurality of insufficient heat sources).
The air compressors with quite large power can be used for stirring in the flotation process, more than 90% of the power consumption of the air compressors exists in a heating mode, and the heat recovery rate of the air compressors adopted in the current flotation mining method can reach 85%, which is a main source of heat energy (40-90C can be prepared) o Hot water) is completed by the air compressor heat return module 4. The heat energy transfer and the recycling are completed through the water ring type vacuum pump 10 and the heat pump device 3, and the heat pump device 3 is provided with an indoor unit and a room like a central air conditioner unitAn external unit for transferring heat from the indoor to the outdoor through the compressor and the refrigerant; the heat energy of the heat pump device 3 is derived from the circulating water at the cold water side of the heat pump, the second water pump 13 pumps the circulating water into the first heat exchange device 7, the interlayer of the gas-water separation device 8 of the diaphragm type buffer tank 9 and the second heat exchange device 11, and the system belongs to closed circulation, and unnecessary pressure change can occur under the action of the expansion and contraction volume change of the added water, so that the volume change of the water is absorbed through the diaphragm type buffer tank 9. The ratio of the power of the heat pump device 3 energy transfer to the power consumption consumed by the transfer is 7:1, working temperature is respectively cold side 10C o Hot side 46C o The heat energy is derived from the phase change of the water vapor coming out of the drying tank 5 through the first heat exchange device 7, the gas-liquid separation device tank 8 and the second heat exchange device 11 and the collection of the heat energy generated by the operation of the vacuum pump.
Moisture removal and heat energy recycling part: the structure of the drying tank 5 is made of three layers of metal, circulating water is arranged in an inner interlayer, and a filled heat insulation material is arranged in an outer interlayer; the materials are put into the drying tank 5 from the material inlet at the upper left side, the material outlet is arranged at the lower right side, the environment in the drying tank 5 is converted into vacuum through the water ring type vacuum pump 10 after the materials are put into the drying tank 5, the theoretical capacity can reach 33 hundred pascals, namely, the moisture can be at 26C o The pressure point of vaporization (this value is also lower under the influence of the heat pump device 3). Due to the lowest 40C in the interlayer inside the drying tank 5 o The temperature of the circulating water is far higher than the temperature required by the vaporization of the moisture in the tank, so that the metal mineral powder attached to the tank layer can be quickly dried, and the heat can be quickly transferred to the upper layer by water vapor and the metal mineral powder in consideration of the fine granularity and heat conduction characteristics of the metal mineral powder and the rising characteristics of hot air; during this heat transfer process, the moisture adhering to the upper metal ore powder is also vaporized continuously and flows to the heat energy utilization device 12 under the suction effect of the water ring vacuum pump 10, and the metal ore powder possibly entrained in the air flow during the flowing process is sunk under the effect of the special structure of the gas-liquid-solid separation device 6 by the centrifugal force and the gravity force. The water vapor heated by the action of the vacuum pump is mostly rapidly cooled and liquefied while flowing through the second heat exchange device 11, and simultaneously releases a large amount of heat energy; unliquefaction ofThe mixture of water vapor and water continues to move in the direction of the water ring vacuum pump 10. Then the liquid water is further cooled and liquefied when passing through the gas-liquid separation device tank 8, the liquid water can be remained at the middle bottom of the gas-liquid separation device tank 8, the water can be discharged through a water outlet at the bottom of the gas-liquid separation device tank 8 when the machine is stopped for discharging, and meanwhile, whether metal mineral powder is carried out can be observed. The second heat exchange device 11, the gas-liquid separation device tank 8, the diaphragm type air pressure tank 9, the first heat exchange device 7 and the heat energy utilization device 12 are the cold water side, namely the cooling side of the heat pump device 3, and can prepare 10C O The following cold water can transfer the heat released by the water vapor during the phase change to the drying tank 5 for recycling, and can make the vacuum pump reach higher vacuum degree.
The drying tank 5 can fully utilize high heat transfer efficiency due to gravity and contact heat transfer to heat the metal mineral powder; the hot water enters from the center of the bottom of the conical drying tank 5 and diffuses to the periphery until the top flows out, so that the hot water stays at the bottom for the longest time and then rapidly leaves the container, the temperature of other spaces is kept higher, and the gasified steam moves upwards after leaving the bottom due to the action of the water ring type vacuum pump 10 and cannot be cooled and liquefied even if the steam hits the periphery or the top. In addition, the material inlet is arranged at the waist of the drying tank 5, and the material outlet is arranged at the horizontal side, so that the metal mineral powder can be conveniently fed in and discharged out, and the blowing of the metal mineral powder is avoided while the minimum air leakage in the feeding and discharging process of the metal mineral powder is ensured. The outer sheath of the gas-liquid-solid separation device 6 is a baffle just below the middle air pipe, and a cyclone device consisting of a circle of centrifugal blades is arranged around the outer sheath, so that the metal mineral powder can be prevented from being carried up by air flow which rapidly evaporates moisture, and the metal mineral powder can be prevented from being blown up by air flow backward during shutdown. The gas-liquid separation device tank 8 can effectively separate gas from liquid, store liquid and recycle heat energy, and collect metal mineral powder possibly taken away again.
The heat pump device 3 is used for collecting and reusing heat energy and improving the efficiency of the vacuum pump 10, and the flow direction of cooling liquid of the heat pump device 3 is the second water pump 13, the first heat exchange device 7, the buffer tank 9, the interlayer of the gas-liquid separation device tank 8 and the second heat exchange device 7. The working mode is that the cooling liquid with the temperature of about 10 ℃ is obtained after heat exchange by the heat pump device 3, pressurized by the second water pump 13, flows through the first heat exchange device 7, the buffer tank 9, the interlayer of the gas-liquid separation device tank 8 and the second heat exchange device 11, absorbs the heat energy in the devices to heat the cooling liquid, and is sent to the heat pump device 3 to be connected by the second water pump 13 to form a closed cycle. The heat energy is transferred to the high temperature side under the action of the heat pump device 3, and then the heat energy is transferred to the circulating water of the heat storage water tank 1 in the circulating system of the interlayer in the drying tank 5 through the pipeline connected with the hot water side of the heat pump device 3 and the switching of the valves 14, 15 and 16 to further heat up the circulating water to participate in the drying work, so that the reutilization effect is achieved. .
The heat pump device 3 transfers heat energy to the hot water side, namely, after valves 14, 15 and 16 and a connecting pipeline part are connected, the heat pump device is switched into a drying tank 5 and a heat storage water tank 1 system through the valves, when the water temperature discharged from the upper end of the drying tank 5 is more than 30 ℃, and when the heat pump device 3 is not required to be heated for the second time, the valve 15 and the valve 16 are closed, and only the valve 14 is required to be opened, so that the heat pump system can be stopped; if the temperature of the water discharged from the upper end of the drying tank 5 is lower than 30 ℃, the bypass valve 14 is closed, the valve 15 and the valve 16 are opened, and the water with the temperature lower than 30 ℃ is heated to be higher than 40 ℃ through the heat pump device 3 and then enters the heat storage water tank 1 for reuse.
The pure physical change in the drying process avoids the metal crystal from being polluted again; the method has the advantages that the dust cannot pollute the working environment in the drying process, and meanwhile, the dust cannot scatter, and compared with a coal-fired boiler, the method has no pollution, zero emission and energy saving rate of more than 90%.
Claims (1)
1. A device for vacuum drying and heat value recycling of flotation metal mineral powder is characterized in that: the device comprises a heat storage water tank (1), a first water pump (2), an air compressor heat recovery module (4), a drying tank (5), a first heat exchange device (7), a gas-liquid separation device tank (8), a diaphragm type buffer tank (9), a water ring type vacuum pump (10), a second heat exchange device (11), a water ring type vacuum pump water supplementing and heat energy utilizing device (12), a second water pump (13), a heat pump device (3) and valves (14, 15 and 16), wherein the gas-liquid-solid separation device (6) is contained in the drying tank (5); the water in the heat storage water tank (1) is heated by the first water pump (2) and the air compressor heat recovery module (4) and then is connected with the bottom of the interlayer of the drying tank (5), heat is transferred to metal mineral powder at the bottom of the drying tank (5) through the drying tank (5) and is evaporated to dry, and cold water cooled after the heat is transferred to the metal mineral powder by hot water in the drying tank (5) returns to the heat storage water tank (1) through the top of the interlayer of the drying tank (5) to form an independent circulating system; the vaporized vapor in the drying tank (5) moves towards the direction of the water ring type vacuum pump (10), the upper part of a gas-liquid-solid separation device (6) arranged at the inner top of the path drying tank (5) is discharged and connected with the inlet end at the upper part of the gas path side of the first heat exchange device (7), the outlet end at the lower part of the gas path side of the first heat exchange device (7) is connected with the inlet end at the middle part of the gas path side of the gas-liquid separation device tank (8) through a pipeline, the upper outlet end of the gas-liquid separation device tank (8) is connected with the inlet end of the water ring type vacuum pump (10) through a pipeline, and the outlet end of the water ring type vacuum pump (10) is connected with a water supplementing and heat energy utilizing device (12); the cold water side of the heat pump device (3) is sequentially connected with a second water pump (13), a second heat exchange device (11), a diaphragm type buffer tank (9), an interlayer of a gas-liquid separation device tank (8), a first heat exchange device (7) and then returns to the cold water side of the heat pump device (3) to form a closed cycle, and under the action of the heat pump device (3), the heat energy in the interlayer of the second heat exchange device (11), the interlayer of the gas-liquid separation device tank (8) and the first heat exchange device (7) is collected and then is sent to a heat storage water tank (1) for being reused for mineral powder drying through the switching of the pipelines and valves (14, 15 and 16) on the hot water side of the heat pump device (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810400132.1A CN108507284B (en) | 2018-04-28 | 2018-04-28 | Device for vacuum drying and heat value recycling of flotation metal mineral powder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810400132.1A CN108507284B (en) | 2018-04-28 | 2018-04-28 | Device for vacuum drying and heat value recycling of flotation metal mineral powder |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108507284A CN108507284A (en) | 2018-09-07 |
| CN108507284B true CN108507284B (en) | 2024-04-02 |
Family
ID=63399577
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810400132.1A Active CN108507284B (en) | 2018-04-28 | 2018-04-28 | Device for vacuum drying and heat value recycling of flotation metal mineral powder |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108507284B (en) |
Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6226891B1 (en) * | 1999-12-06 | 2001-05-08 | Daniel R. Chapman | Method and apparatus for drying iron ore pellets |
| JP2004116846A (en) * | 2002-09-25 | 2004-04-15 | Matsushita Refrig Co Ltd | Drying system |
| JP2007085600A (en) * | 2005-09-21 | 2007-04-05 | Morita Corp | Decompression low temperature drying device |
| CN202065152U (en) * | 2010-12-30 | 2011-12-07 | 深圳市宏伟装饰工程有限公司 | Air compressor heat recovering temperature-keeping/drying system |
| CN202660871U (en) * | 2012-03-30 | 2013-01-09 | 黄华杰 | Drying device using afterheat of air compressor |
| KR101237450B1 (en) * | 2012-04-10 | 2013-02-26 | 에스에이비(주) | Heat pump system for generating steam using waste heated water |
| CN203132310U (en) * | 2013-01-30 | 2013-08-14 | 陕西科技大学 | Vacuum box type drying device |
| CN203584911U (en) * | 2013-12-06 | 2014-05-07 | 苏州英科工程技术服务有限公司 | Air compressor heat recovery system used for drying process system |
| KR101466059B1 (en) * | 2013-08-27 | 2014-11-27 | (주)대주기계 | air dryer recycling apparatus using compressor waste heat |
| CN107594583A (en) * | 2017-09-26 | 2018-01-19 | 南昌航空大学 | A kind of energy-efficient drying device of fruits and vegetables low-pressure superheated steam and method |
| CN208365938U (en) * | 2018-04-28 | 2019-01-11 | 李增昌 | A kind of vacuum drying of flotation metal mining powder and calorific value reuse means |
-
2018
- 2018-04-28 CN CN201810400132.1A patent/CN108507284B/en active Active
Patent Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6226891B1 (en) * | 1999-12-06 | 2001-05-08 | Daniel R. Chapman | Method and apparatus for drying iron ore pellets |
| JP2004116846A (en) * | 2002-09-25 | 2004-04-15 | Matsushita Refrig Co Ltd | Drying system |
| JP2007085600A (en) * | 2005-09-21 | 2007-04-05 | Morita Corp | Decompression low temperature drying device |
| CN202065152U (en) * | 2010-12-30 | 2011-12-07 | 深圳市宏伟装饰工程有限公司 | Air compressor heat recovering temperature-keeping/drying system |
| CN202660871U (en) * | 2012-03-30 | 2013-01-09 | 黄华杰 | Drying device using afterheat of air compressor |
| KR101237450B1 (en) * | 2012-04-10 | 2013-02-26 | 에스에이비(주) | Heat pump system for generating steam using waste heated water |
| CN203132310U (en) * | 2013-01-30 | 2013-08-14 | 陕西科技大学 | Vacuum box type drying device |
| KR101466059B1 (en) * | 2013-08-27 | 2014-11-27 | (주)대주기계 | air dryer recycling apparatus using compressor waste heat |
| CN203584911U (en) * | 2013-12-06 | 2014-05-07 | 苏州英科工程技术服务有限公司 | Air compressor heat recovery system used for drying process system |
| CN107594583A (en) * | 2017-09-26 | 2018-01-19 | 南昌航空大学 | A kind of energy-efficient drying device of fruits and vegetables low-pressure superheated steam and method |
| CN208365938U (en) * | 2018-04-28 | 2019-01-11 | 李增昌 | A kind of vacuum drying of flotation metal mining powder and calorific value reuse means |
Non-Patent Citations (1)
| Title |
|---|
| 煤矿空压机废热回收系统研究;郭学军;;装备制造技术(第04期);全文 * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN108507284A (en) | 2018-09-07 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US10365040B2 (en) | Method for drying high moisture, low calorific value lignite for a generating set and recovering water contained therein and apparatus thereof | |
| CN102226604A (en) | High-temperature vapor heat pump system for generating vapor by utilizing low-grade waste heat | |
| CN204718176U (en) | Utilize the absorption system of residual heat from boiler fume | |
| CN106430901A (en) | Moisture discharge and drying system for sludge | |
| CN102278869A (en) | Microwave energy-saving environmentally-friendly drying method and device of coal slime, lignite and medium minerals | |
| CN108426426A (en) | A kind of sludge dehumidification type multistage recuperation of heat anhydration system | |
| CN105352307A (en) | Dehumidification type heat pump drying system provided with bypass air duct | |
| CN102261828A (en) | Energy-saving and environmentally-friendly drying method of coal slime and lignite and device thereof | |
| CN105466196A (en) | Double-effect vacuum tube bundle drying system | |
| CN105498462A (en) | Liquid dehumidification combined vortex tube low-temperature air-flow output device and pulverizing system | |
| CN110550682B (en) | Small-size waste water concentration system | |
| CN113149393B (en) | Natural gas pressure energy driven sludge dewatering and drying system | |
| CN202133185U (en) | High-temperature steam-generating heat pump system | |
| CN101240977A (en) | Natural energy sources two-way circulation airflow drying system | |
| CN108507284B (en) | Device for vacuum drying and heat value recycling of flotation metal mineral powder | |
| CN103277854A (en) | Evaporative cooling dehumidification air conditioner unit with waste heat recovery function and for air compressor | |
| CN203323275U (en) | Evaporating, cooling and dehumidifying air conditioner suitable for air compressor to carry out waste heat recovery | |
| CN202705075U (en) | Low-temperature evaporating, condensing and liquefying circulatory device | |
| CN105627702B (en) | A kind of Analysis of Heat Pump Drying System using industrial circulating water as thermal source | |
| CN208187026U (en) | A kind of sludge dehumidification type multistage recuperation of heat anhydration system | |
| CN103060498B (en) | Blast furnace cinder flushing water residual heat power generation system | |
| CN202961914U (en) | Hybrid vapor mechanical recompression evaporator | |
| CN214735302U (en) | Sludge dewatering and drying system driven by natural gas pressure energy | |
| CN205482159U (en) | Novel high temperature heat pump mud drying -machine | |
| CN103673534A (en) | Brown coal drying water-lifting recycling system using waste heat of power plant |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |