CN211739522U - Sludge and coal slime drying device of solar energy fused salt energy storage - Google Patents
Sludge and coal slime drying device of solar energy fused salt energy storage Download PDFInfo
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- CN211739522U CN211739522U CN202020337889.3U CN202020337889U CN211739522U CN 211739522 U CN211739522 U CN 211739522U CN 202020337889 U CN202020337889 U CN 202020337889U CN 211739522 U CN211739522 U CN 211739522U
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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
- Y02E10/40—Solar thermal energy, e.g. solar towers
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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
- 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
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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
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P80/00—Climate change mitigation technologies for sector-wide applications
- Y02P80/20—Climate change mitigation technologies for sector-wide applications using renewable energy
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Abstract
The utility model discloses a mud coal slime drying device of solar energy fused salt energy storage, including solar collector, the inside fused salt that is filled with of solar collector, solar collector is used for heating the fused salt, the last high temperature fused salt that is provided with of solar collector exports, the fused salt entry of high temperature fused salt exit linkage drying-machine, the drying-machine still is connected with mud coal slime feed bin, the drying-machine uses the fused salt after the heating to carry out the heat transfer drying to the material of mud coal slime feed bin transmission. The utility model discloses use high temperature fused salt to dry mud and coal slime for the heat source, drying efficiency is high, and the exhaust-gas treatment cost is reduced, moreover the utility model provides a heat transfer medium also need not burn other resources, just also can not reduce the thermal efficiency of boiler and mix the economic nature of burning mud and coal slime, utilizes renewable energy, has better ecological environment benefit and economic benefits, and system architecture is nimble simple, easily industrialization.
Description
Technical Field
The utility model relates to a fluidized bed boiler technical field, concretely relates to mud coal slime drying device of solar energy fused salt energy storage.
Background
Circulating Fluidized Bed (CFB) boilers have the following advantages: high combustion efficiency, wide fuel adaptability, lower pollutant emission intensity, better load regulation performance, high-efficiency comprehensive utilization of resources and the like, and is widely applied to the power generation industry at home and abroad.
In view of the wide fuel adaptability of the fluidized bed boiler, the fluidized bed boiler can mix and burn sludge and coal slime with certain heat value, thereby not only changing waste into valuables and utilizing resources, but also solving the coal burning cost of the boiler and realizing the unification of economic benefit and environmental benefit.
However, because the water content of the sludge and the coal slime is high, the direct feeding and blending combustion can affect the stable operation of the boiler and greatly reduce the efficiency of the boiler, and the direct feeding and blending combustion is not preferable in technical and economic aspects, so the sludge and the coal slime need to be dried before being fed into the boiler. At present, the drying mode mainly utilizes the drying technology that high-temperature flue gas or high-temperature steam generated by a fluidized bed boiler sweeps over the surface of sludge and is in direct contact with the sludge. The technology has high heat transfer efficiency and high drying speed, but the drying medium is polluted, especially the flowing medium after drying the sludge carries a large amount of pollutants, and the tail gas treatment cost is high. Meanwhile, the heat required by the drying provided by the high-temperature heat medium also consumes the heat energy of the fuel to a certain extent, the heat efficiency of the boiler is reduced, if steam is used for drying, precious pure steam resources are wasted, and the economy of sludge and coal slime mixed combustion is weakened.
SUMMERY OF THE UTILITY MODEL
Aiming at the defects in the prior art, the utility model aims to provide a sludge and coal slime drying device for storing energy by solar molten salt, which solves the problem of drying sludge and coal slime before entering a furnace in the prior art,
in order to achieve the above object, the present invention provides the following technical solutions: the utility model provides a mud coal slime drying device of solar energy fused salt energy storage, includes solar collector, the inside fused salt that is filled with of solar collector, solar collector is used for heating the fused salt, the last high temperature fused salt that is provided with of solar collector exports, the fused salt entry of high temperature fused salt exit linkage drying-machine, the drying-machine still is connected with mud coal slime feed bin, the drying-machine uses the fused salt after the heating to heat the material of mud coal slime feed bin transmission and dry.
Further, the solar heat collector also comprises a heliostat used for reflecting sunlight to the solar heat collector;
the material after the drying-machine drying is drawn forth from the mud coal slime export that sets up on the drying-machine, mud coal slime exit linkage mummification feed bin, still be provided with the exhaust outlet on the drying-machine, exhaust outlet has connected gradually cyclone, condenser and chimney.
Further, a deodorizing device is arranged between the condenser and the chimney and used for removing odor in waste gas generated by drying materials of the dryer.
Further, a low-temperature molten salt outlet is further formed in the dryer and connected with a low-temperature molten salt inlet of the solar heat collector.
Further, be provided with the not hard up device of material in the mud coal slime feed bin, the mud coal slime feed bin passes through screw feeder and connects the drying-machine.
Further, be provided with fused salt flow distribution valve on the pipeline that high temperature fused salt export and drying-machine are connected, fused salt flow distribution valve is provided with first export and second export, first exit linkage is to the fused salt entry of drying-machine, second exit linkage is to the entry of fused salt heat storage tank, the export of fused salt heat storage tank is provided with the governing valve, the exit end of governing valve is connected on the pipeline between first export and drying-machine.
Further, an outlet of the regulating valve is mixed with a first outlet of the molten salt flow distribution valve and then is connected to a molten salt inlet of the dryer through a high-temperature molten salt pump;
and the outlet of the regulating valve and the first outlet of the molten salt flow distribution valve are connected to a pipeline of the inlet of the high-temperature molten salt pump after being mixed, and a flow meter, a thermometer and a pressure gauge are arranged on the pipeline.
Furthermore, the solar heat collector is connected to the outside of the pipeline of the dryer, the outside of the outlet pipeline of the molten salt heat storage tank and the outside of the inlet pipeline of the molten salt heat storage tank, the shell of the molten salt heat storage tank and the outside of the pipeline connecting the dryer and the solar heat collector are wrapped by aluminum silicate heat insulation materials.
Further, the dryer is sprayed with corrosion-resistant paint.
Compared with the prior art, the utility model discloses following beneficial effect has at least:
the utility model changes the heat exchange medium in the prior art, the utility model discloses in use high temperature fused salt as heat source drying material, the difference in temperature of fused salt and material is big, drying efficiency is high, uses the fused salt to dry simultaneously, does not take the flowing medium, and the pollutant that the waste gas that produces after the drying material carried reduces greatly, and the exhaust-gas treatment cost reduces, moreover the utility model provides a heat exchange medium also need not burn other resources, just can not reduce the thermal efficiency of boiler and mix the economic nature of burning the material yet, utilizes renewable energy, has better ecological environment benefit and economic benefits, and system architecture is nimble simple, easily industrialization;
further, the utility model discloses a fused salt is behind the heat transfer medium, and the pollutant that the waste gas of dry production carried still less, and corresponding treatment cost to waste gas can be lower, simultaneously because the reduction of pollutant, the utility model discloses in be provided with the condenser, carry out the condensation to the vapor in the waste gas and collect recycle, resources are saved, economic nature is good.
Furthermore, the molten salt after heat exchange in the utility model does not need to be in direct contact with materials, so the molten salt after heat exchange can be returned to the solar heat collector for repeated utilization and heat absorption, and the economical efficiency is further improved;
furthermore, the material loosening device is arranged in the sludge and coal slime storage bin, so that the phenomena of material bridging and blockage are avoided, the continuous feeding of materials is realized, and the operation efficiency of the whole mechanism is higher;
further, the utility model discloses in still be equipped with fused salt heat storage tank, guaranteed the continuous operation efficiency of whole device, when sunshine is sufficient, the fused salt of heating partly gets into fused salt heat storage tank and keeps warm the storage, sunshine is insufficient can open fused salt heat storage tank, mixes the fused salt in fused salt heat storage tank and the fused salt in the fused salt heat storage tank in the solar collector, and when sunshine scarce or not, directly drop into the fused salt in the fused salt heat storage tank and carry out heat transfer drying in the drying-machine, the utility model discloses not only use renewable energy, guaranteed the continuous operation nature of whole device simultaneously.
Further, the utility model discloses the pipeline that well heated fused salt flowed through is outside all to use the aluminium silicate as the heat preservation material with fused salt heat storage tank shell, has guaranteed the temperature of the fused salt after the heating, has reduced the heat loss, and the drying-machine spraying has corrosion-resistant coating simultaneously, has prevented that fused salt and mud from causing the corruption to the heat exchanger in the drying-machine, has improved equipment life.
Drawings
Fig. 1 is a schematic structural view of the present invention;
in the drawings: 1-a heliostat; 2-a solar heat collector, 3-a molten salt flow distribution valve, 4-a molten salt heat storage tank, 5-an adjusting valve, 61-a flow meter, 62-a thermometer, 63-a pressure gauge, 7-a high-temperature molten salt pump, 8-a sludge and coal slime bin, 9-a material loosening device, 10-a screw feeder, 11-a dryer, 12-a drying bin, 13-a cyclone dust collector, 14-a condenser, 15-a deodorizing device and 16-a chimney.
Detailed Description
The present invention will be described in detail with reference to the accompanying drawings and specific embodiments.
As shown in fig. 1, the utility model provides a mud coal slime drying device of solar energy fused salt energy storage, including solar collector 2, the inside fused salt that is filled with of solar collector 2, solar collector 2 is used for heating the fused salt, be provided with the high temperature fused salt export on solar collector 2, the entry of high temperature fused salt exit linkage high temperature fused salt pump 7, the exit linkage drying-machine 11 of high temperature fused salt pump 7, high temperature fused salt pump 7 is used for drawing forth high temperature fused salt to drying-machine 11 after 2 internal heating of solar collector, drying-machine 11 still is connected with mud coal slime feed bin 8, drying-machine 11 uses the fused salt after the heating to heat the material of mud coal slime feed bin 8 transmission dry, wherein, in this embodiment, the material is mud and/or coal slime.
In this embodiment, a heliostat 1 is further provided, the heliostat 1 reflects sunlight, the solar energy collected by the solar collector 2 heats the molten salt filled in the solar collector 2, and the heated molten salt is led out to the dryer 11 by the high-temperature molten salt pump 7.
In this embodiment, a sludge and coal slurry bin 8 conveys materials to a dryer 11, the dryer 11 is internally provided with a high-temperature molten salt from a high-temperature molten salt pump 7 to perform heat exchange drying on the materials, the dried materials are led out from a sludge and coal slurry outlet arranged on the dryer 11, the sludge and coal slurry outlet is connected with a drying bin 12, when the materials need to be mixed and burnt, the materials are taken out from the drying bin 12, the dryer 11 is also provided with a waste gas outlet, waste gas generated during the drying of the materials is discharged through the waste gas outlet, the waste gas outlet is sequentially connected with a cyclone dust collector 13, a condenser 14 and a chimney 16, the cyclone dust collector 13 is used for removing fly ash carried in the waste gas, the condenser 14 condenses and liquefies water vapor in the waste gas, and then the liquefied water can be used as process water, such as washing instruments and the like;
in the preferred embodiment of the present embodiment, a deodorizing device 15 is further disposed between the condenser 14 and the chimney 16, and when the sludge component is in the material conveyed in the sludge and coal slurry bin 8, the deodorizing device 15 is required to remove the odor component in the exhaust gas.
In this embodiment, the dryer 11 is further provided with a low-temperature molten salt outlet, the low-temperature molten salt outlet is connected to the low-temperature molten salt inlet of the solar collector 2, and specifically, the heat released molten salt flows into the solar collector 2 from the low-temperature molten salt outlet of the dryer 11 to absorb heat again to participate in the circulation.
In the preferred embodiment of this embodiment, be provided with material not hard up device 9 in the mud coal slime feed bin 8, prevent that material bridging and blocking phenomenon from appearing, realize that the material carries out the heat transfer drying, the material in the mud coal slime feed bin 8 is passed through screw feeder 10 and is introduced in drying-machine 11.
In the preferred embodiment of this embodiment, the pipeline between the high temperature fused salt export of solar collector 2 and high temperature fused salt pump 7 is provided with fused salt flow distribution valve 3, fused salt flow distribution valve 3 is provided with first export and second export, and the first exit linkage of fused salt flow distribution valve 3 is to high temperature fused salt pump 7, the entry of fused salt heat storage tank 4 is connected to the second exit linkage of fused salt flow distribution valve 3, distributes the high temperature fused salt that flows to fused salt heat storage tank 4 and high temperature fused salt pump 7 through fused salt flow distribution valve 3, the export of fused salt heat storage tank 4 is provided with governing valve 5, the exit end of governing valve 5 is connected to the entry of high temperature fused salt pump 7 after mixing with first export.
In the embodiment, a flow meter 61, a temperature meter 62 and a pressure meter 63 are arranged on a pipeline which is connected between the outlet of the regulating valve 5 and the inlet of the molten salt flow distribution valve 3 after being mixed, so as to monitor the operation condition of the whole device.
In the present embodiment, the molten salt filled in the solar heat collector 2 isBinary molten nitrate salt (KNO)3-NaNO3) Or trinary nitrate (NaNO)2-KNO3-NaNO3And Ca (NO)3)2-KNO3-NaNO3Etc.);
preferably, aluminum silicate is used as a heat insulation material for the molten salt flowing through the outside of the pipeline and the shell of the molten salt heat storage tank 4;
preferably, the dryer 11 is made of boiler pipes, including 20G, SA210C, 15CrMoG and other materials; the dryer 11 is sprayed with the corrosion-resistant coating, so that the heat exchanger is prevented from being corroded by the molten salt and the sludge, and the service life of the equipment is prolonged.
In the present embodiment, the high temperature molten salt pump 7 is a GY type high temperature molten salt pump 7 or other types.
The specific steps of using the device are as follows: when solar energy resources are rich (sunny days), namely the heat generated by the solar heat collector 2 is greater than the heat required by the heated flue gas to reach the required temperature, the first outlet and the second outlet of the molten salt flow distribution valve 3 are opened, part of high-temperature molten salt flows to the molten salt heat storage tank 4 for storage, and the regulating valve 5 is closed at the same time, so that the molten salt heat storage tank 4 realizes the function of storing the high-temperature molten salt; the other part of high-temperature molten salt flows to the high-temperature molten salt pump 7 and is conveyed to the dryer 11 through the high-temperature molten salt pump 7 for drying the coal slime and/or the sludge.
When solar energy resource is less (cloudy day), the heat that solar collector 2 produced is less than when heating the flue gas and reaching the required heat of required temperature, solar collector 2 produces the heat not enough, when the flow that leads to the high temperature fused salt of high temperature fused salt pump 7 of inflow is not enough, the second export of fused salt flow distribution valve 3 is closed, only communicate high temperature fused salt pump 7, and open governing valve 5, fused salt heat storage tank 4 supplements the flow of the required high temperature fused salt of high temperature fused salt pump 7, the high temperature fused salt flows from the first export of fused salt flow distribution valve 3 and fused salt heat storage tank 4 export this moment, flow through high temperature fused salt pump 77, reentrant drying-machine 11.
When solar energy resource is scarce (night), when solar collector 2 does not produce heat promptly, solar collector 2 does not outwards carry the fused salt, closes fused salt flow distribution valve 3's entry, at this moment, opens governing valve 5, and fused salt heat storage tank 4 realizes exothermic function, and high temperature fused salt flows out from fused salt heat storage tank 4 export, flows through high temperature fused salt pump 7, reentrant drying-machine 11.
The fused salt that flows into high temperature fused salt pump 7 is sent into drying-machine 11, mud coal slime feed bin 8 is to sending into the material in the drying-machine 11, the material gets into mummification feed bin 12 through mud coal slime export after carrying out the heat transfer drying with the fused salt, the fused salt that the heat transfer was accomplished gets into solar collector 2 through the low temperature fused salt entry of solar collector 2 and heats, the waste gas that the heat transfer drying process produced is drawn forth from the exhaust outlet of drying-machine 11, get rid of the flying dust in the waste gas through cyclone 13 in proper order, the vapor in condenser 14 condensation waste gas and deodorizing device 15 get rid of the foul smell in the waste gas after the external world is discharged from chimney 16.
The switch and the opening degree of the molten salt distribution valve and the adjusting valve 5 can be adjusted according to solar energy resources, the type of the molten salt, the type of sludge and/or coal slurry, and the molten salt flow distribution valve 3 and the adjusting valve 5 can be adjusted correspondingly according to the temperature of the heated molten salt, the flow flowing into the dryer 11 and the water content of the materials.
Preferably, high temperature molten salt pump 7 and fused salt heat storage tank 4 can set up a plurality ofly according to actual use condition, increase the output of high temperature fused salt.
Finally, it should be noted that: the above-mentioned embodiments are only specific embodiments of the present invention, and are not intended to limit the technical solution of the present invention, and the protection scope of the present invention is not limited thereto, although the present invention is described in detail with reference to the foregoing embodiments, those skilled in the art should understand that: those skilled in the art can still modify or easily conceive of changes in the technical solutions described in the foregoing embodiments or make equivalent substitutions for some technical features within the technical scope of the present disclosure; such modifications, changes or substitutions do not substantially depart from the spirit and scope of the embodiments of the present invention, and are intended to be included within the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.
Claims (9)
1. The utility model provides a mud coal slime drying device of solar energy fused salt energy storage, a serial communication port, including solar collector (2), the inside molten salt that is filled with of solar collector (2), solar collector (2) are used for heating the fused salt, be provided with the high temperature fused salt export on solar collector (2), the fused salt entry of high temperature fused salt exit linkage drying-machine (11), drying-machine (11) still are connected with mud coal slime feed bin (8), the fused salt after drying-machine (11) internal heating heats the material of mud coal slime feed bin (8) transmission and heats the drying.
2. The solar molten salt energy storage sludge and coal slime drying device according to claim 1, further comprising a heliostat (1), wherein the heliostat (1) is used for reflecting sunlight to the solar heat collector (2);
the material after drying-machine (11) drying is drawn forth from the mud coal slime export that sets up on drying-machine (11), mud coal slime exit linkage mummification feed bin (12), still be provided with exhaust outlet on drying-machine (11), exhaust outlet has connected gradually cyclone (13), condenser (14) and chimney (16).
3. The sludge and coal slime drying device of the solar energy fused salt energy storage as claimed in claim 2, wherein a deodorizing device (15) is further arranged between the condenser (14) and the chimney (16), and the deodorizing device (15) is used for removing odor in waste gas generated by drying materials by the dryer (11).
4. The sludge and coal slime drying device of claim 1, wherein the dryer (11) is further provided with a low-temperature molten salt outlet, and the low-temperature molten salt outlet is connected with a low-temperature molten salt inlet of the solar heat collector (2).
5. The sludge and coal slime drying device of the solar energy fused salt energy storage as claimed in claim 1, wherein a material loosening device (9) is arranged in the sludge and coal slime storage bin (8), and the sludge and coal slime storage bin (8) is connected with a dryer (11) through a screw feeder (10).
6. The sludge and coal slime drying device adopting the solar molten salt energy storage technology as claimed in claim 1, wherein a molten salt flow distribution valve (3) is arranged on a pipeline connecting the high-temperature molten salt outlet and the dryer (11), the molten salt flow distribution valve (3) is provided with a first outlet and a second outlet, the first outlet is connected to a molten salt inlet of the dryer (11), the second outlet is connected to an inlet of the molten salt heat storage tank (4), an outlet of the molten salt heat storage tank (4) is provided with a regulating valve (5), and an outlet end of the regulating valve (5) is connected to the pipeline between the first outlet and the dryer (11).
7. The sludge and coal slime drying device of claim 6, wherein the outlet of the regulating valve (5) is mixed with the first outlet of the molten salt flow distribution valve (3) and then connected to the molten salt inlet of the dryer (11) through the high-temperature molten salt pump (7);
and the outlet of the regulating valve (5) and the first outlet of the molten salt flow distribution valve (3) are mixed and then connected to a pipeline of the inlet of the high-temperature molten salt pump (7), and a flow meter (61), a thermometer (62) and a pressure gauge (63) are arranged on the pipeline.
8. The sludge and coal slime drying device adopting the solar molten salt energy storage technology as claimed in claim 6, wherein the solar heat collector (2) is connected to the outside of the pipeline of the dryer (11), the outside of the outlet pipeline of the molten salt heat storage tank (4) and the outside of the inlet pipeline of the molten salt heat storage tank (4), the shell of the molten salt heat storage tank (4) and the outside of the pipeline connecting the dryer (11) and the solar heat collector (2) are wrapped with aluminum silicate heat insulation materials.
9. The solar energy molten salt energy storage sludge and coal slime drying device as claimed in claim 1, wherein the dryer (11) is sprayed with corrosion-resistant paint.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020337889.3U CN211739522U (en) | 2020-03-17 | 2020-03-17 | Sludge and coal slime drying device of solar energy fused salt energy storage |
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| CN202020337889.3U CN211739522U (en) | 2020-03-17 | 2020-03-17 | Sludge and coal slime drying device of solar energy fused salt energy storage |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111238063A (en) * | 2020-03-17 | 2020-06-05 | 中国华能集团清洁能源技术研究院有限公司 | Sludge and slime drying device with energy stored by solar molten salt and operation method |
| CN113683325A (en) * | 2021-09-07 | 2021-11-23 | 山东大学 | System and method for preparing sulphoaluminate cement by solar heat storage dried sludge |
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2020
- 2020-03-17 CN CN202020337889.3U patent/CN211739522U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111238063A (en) * | 2020-03-17 | 2020-06-05 | 中国华能集团清洁能源技术研究院有限公司 | Sludge and slime drying device with energy stored by solar molten salt and operation method |
| CN113683325A (en) * | 2021-09-07 | 2021-11-23 | 山东大学 | System and method for preparing sulphoaluminate cement by solar heat storage dried sludge |
| WO2023035197A1 (en) * | 2021-09-07 | 2023-03-16 | 山东大学 | System and method for preparing sulphoaluminate cement by drying sludge via solar heat storage |
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