CN210773189U - MVR vacuum tube bundle drying system with waste steam conversion device - Google Patents
MVR vacuum tube bundle drying system with waste steam conversion device Download PDFInfo
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- CN210773189U CN210773189U CN201921872599.2U CN201921872599U CN210773189U CN 210773189 U CN210773189 U CN 210773189U CN 201921872599 U CN201921872599 U CN 201921872599U CN 210773189 U CN210773189 U CN 210773189U
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Abstract
The utility model relates to a MVR vacuum tube bank drying system with exhaust steam conversion equipment, it is the sealed space of inclosed vacuum that is less than the atmospheric pressure in the casing internal modification of tube bank desiccator, and simultaneously, after the secondary steam dust removal washing that produces when drying the wet material, send into in the evaporimeter, send into the comdenstion water that the steam condensation in the tube bank of tube bank desiccator produced into the evaporimeter, utilize the secondary steam heating comdenstion water to produce steam, this steam is after twice pressurization intensifies, it dries the material to get into the tube bank desiccator, the recovery of comdenstion water is recycled, the recovery of waste heat is recycled in the secondary steam, whole drying process is the steam of hardly giving birth to, and almost no wastewater discharge, really accomplish energy saving and emission reduction.
Description
The technical field is as follows:
the utility model belongs to the technical field of loose material drying equipment such as powder, granule is with equipment, concretely relates to MVR vacuum tube bank drying system with exhaust steam conversion equipment.
Background art:
the tube bundle dryer is an indirect heating contact dryer, and is widely applied to drying of loose materials in the industries of chemical industry, light industry, food, grain, feed and the like, such as powdery, granular and flaky materials without large viscosity. The tube bundle dryer drives the tube bundles to rotate through a motor and a speed reducer, materials enter the dryer through a feeding auger from a feeding port, are picked up through a shoveling plate arranged on the periphery of the tube bundles and are continuously pushed to one end of a discharging port from one end of the feeding port, and the materials fall into the space between the tube bundles under the action of gravity after being picked up to the top by the shoveling plate.
High temperature steam gets into in the tube bank pipe from the rotary joint of tube bank desiccator's discharge gate one end, flows to the feed inlet one end of tube bank desiccator along the tube bank intraduct, and high temperature steam heats the tube bank pipe, carries out the heat exchange through heat transfer and heat radiation and wet material, makes the moisture evaporation among the tube bank material, and the steam condensation in the tube bank is discharged by the feed inlet one end rotary joint of tube bank desiccator, can make moisture evaporation come out through this process and accomplish the drying in the wet material.
However, the existing tube bundle drying machines dry wet materials under normal pressure, and the wet materials are dried under normal pressure, and the temperature required by drying the wet materials is high, and the heat quantity is large, so the heat source used by the existing tube bundle drying machines is high-temperature raw steam, and the raw steam generates a large amount of coal which needs to be burned, so the raw steam always used as the drying heat source can pollute the environment, and the temperature of the raw steam is high, the dried materials can generate a scorching phenomenon due to overhigh temperature, so the quality of the dried materials is reduced, secondary steam generated after moisture in the wet materials is evaporated contains scorching smell, fuel required by the generation of the high-temperature raw steam is large, the energy consumption is large, the drying efficiency is low, the temperature is high, the materials are scorched, and the drying machines are not suitable for drying materials such as seeds.
In addition, the secondary steam generated when the existing tube bundle dryer dries the materials is directly discharged to the atmosphere, a large amount of heat is wasted in the secondary steam, and pollutants such as dust and the like are contained in the secondary steam to pollute the atmosphere. In addition, the raw steam used in the existing tube bundle dryer is condensed into condensed water after heat exchange, and the condensed water is directly discharged, which is a waste of water resources.
The utility model has the following contents:
to sum up, in order to overcome prior art problem not enough, the utility model provides a MVR vacuum tube bank drying system with exhaust steam conversion equipment, it is the sealed space of inclosed vacuum that is less than the atmospheric pressure in reforming transform the casing inside of tube bank desiccator, and simultaneously, after the secondary steam dust removal washing that produces when drying wet material, send into in the evaporimeter, send into the comdenstion water that the steam condensation in the tube bank of tube bank desiccator produced into the evaporimeter, utilize secondary steam heating comdenstion water to produce steam, this steam is after twice pressurization intensifies, it dries to get into the tube bank desiccator to the material, the recovery of comdenstion water has been realized and has been recycled, the recovery of waste heat is recycled in the secondary steam, whole drying process is almost without live steam, and there is waste water discharge hardly, really accomplish energy saving and emission reduction.
In order to solve the technical problem, the utility model discloses a technical scheme does:
an MVR vacuum tube bank drying system with a waste steam conversion device, wherein: the waste heat evaporator is a tubular heat exchanger, a shell side air inlet of the waste heat evaporator is communicated with an air outlet of the washing tower, a shell side air outlet of the waste heat evaporator is communicated with an air inlet of a vacuum pump, an air outlet of the vacuum pump is communicated with the atmosphere, a condensation water outlet of the vacuum tube bundle dryer is communicated with the condensation water collecting tank, a water outlet of the condensation water collecting tank is communicated with a tube side feed inlet of the waste heat evaporator through a condensation water conveying pump, a circulation water outlet is arranged at the lower end of the waste heat evaporator, a circulation water inlet is arranged at the upper end of the waste heat evaporator, the circulation water outlet is communicated with a circulation water inlet through a circulation pump, and the circulation water inlet and the circulation water outlet are both communicated with a tube side of the waste heat evaporator, the device comprises a waste heat evaporator, a gas-liquid separator, a steam compression device, a steam generator, a washing tower, a washing circulating pump, a washing circulating water inlet, a washing water inlet, a fresh water source, a steam outlet, a circulating water outlet, a steam inlet, a steam outlet, a washing circulating water inlet, a washing water outlet.
Further, the vacuum tube bundle dryer comprises a feeding device, a tube bundle dryer and a discharging device, one side of the tube bundle dryer is provided with a feeding hole, the other side of the tube bundle dryer is provided with a discharging hole, the feeding hole of the tube bundle dryer is communicated with the feeding device, the discharging hole of the tube bundle dryer is communicated with the discharging device, a waste steam outlet is arranged on a shell of the tube bundle dryer, a rotating shaft and a shell at two ends of a tube bundle of the tube bundle dryer are movably connected through a mechanical seal, one end of the rotating shaft is connected with a transmission device, the rotating shaft is a hollow shaft, an inner cavity of the rotating shaft is communicated with the tube bundle of the tube bundle dryer, a steam inlet is arranged on the rotating shaft at one side of the discharging hole of the tube bundle dryer, a condensed water outlet is arranged on the rotating shaft at one side of the feeding hole of the tube bundle dryer, the feeding device comprises a mixing, the discharge gate of feeding auger communicates the feed inlet of tube bank desiccator, the feeding auger be airtight auger, discharging device be airtight ejection of compact auger, the discharge gate of airtight ejection of compact auger intercommunication tube bank desiccator, the discharge gate of airtight ejection of compact auger communicates the material feeding of windy receipts material system and compounding auger.
Furthermore, the number of exhaust steam outlets is a plurality of, a plurality of exhaust steam outlets are arranged along the length direction of the tube bundle dryer, and a plurality of exhaust steam outlets are communicated with the exhaust steam pipeline.
Further, the air-conveying and material-receiving system comprises an air heat exchanger, an air-conveying pipeline, an air-conveying fan, a pulse dust collector, an air-closing discharger, a storage bin and a packing machine, wherein an air inlet of the air heat exchanger is communicated with the atmosphere, an air outlet of the air heat exchanger is communicated with an air inlet of the air-conveying fan through the air-conveying pipeline, an exchange medium inlet of the air heat exchanger is communicated with a liquid outlet of a washing water circulating pump of a washing tower through a medium pipeline, an exchange medium outlet of the air heat exchanger is communicated with an exchange medium outlet of the air heat exchanger, a feed inlet is arranged on the air-conveying pipeline, the feed inlet of the air-conveying pipeline is communicated with a discharge outlet of a closed discharge auger of the vacuum tube bundle dryer, an air outlet of the air-conveying fan is communicated with a sewage treatment device through the feed inlet of the pulse dust collector, a discharge outlet, the discharge port of the storage bin is communicated with the packaging machine, and the air outlet at the upper end of the pulse dust collector is communicated with the atmosphere.
Further, the water vapor compression device comprises a first steam compressor and a second steam compressor, the air inlet of the first steam compressor is communicated with the air outlet of the gas-liquid separator, the air outlet of the first steam compressor is communicated with the air inlet of the second steam compressor, the air outlet of the second steam compressor is communicated with the steam inlet of the vacuum tube bundle dryer, the air inlet of the first steam compressor is communicated with the steam generation device through a steam conveying pipeline, and an air supplementing valve is arranged on the steam conveying pipeline.
Furthermore, a water outlet at the lower end of the washing tower is communicated with a waste steam pipeline through a washing water pump and a washing pipeline.
Further, the upper end of condensate water collection tank be provided with the gas vent, the gas vent pass through the air inlet of exhaust pipe intercommunication scrubbing tower, the exhaust pipe on the road be provided with the governing valve, the delivery port of condensate water collection tank pass through the water inlet of conveying pipeline intercommunication condensate water delivery pump, the conveying pipeline on be provided with the delivery valve, the delivery port of condensate water collection tank pass through drain line intercommunication sewage treatment plant, the drain pipe on be provided with the drain valve.
The utility model has the advantages that:
1. the utility model discloses a with the inside vacuum seal space that reforms transform of casing of tube bank desiccator a inclosed atmospheric pressure that is less than, simultaneously, after the secondary steam dust removal washing that produces when the wet material is dry, send into in the evaporimeter, send into the evaporimeter with the comdenstion water that the steam condensation in the tube bank of tube bank desiccator produced, utilize the secondary steam heating comdenstion water to produce steam, this steam is after twice pressurization intensifies, it dries the material to get into the tube bank desiccator, the recovery of comdenstion water has been realized, the recovery of waste heat is recycled among the secondary steam, whole drying process is the steam of hardly using, and there is waste water discharge hardly, really accomplish energy saving and emission reduction.
2. The utility model discloses a mechanical seal, airtight feeding auger and airtight ejection of compact auger realize the sealed to tube bank desiccator casing inner space, take away the secondary steam in the tube bank desiccator casing through the vacuum pump and carry to the scrubbing tower washing, make the vacuum that keeps in the tube bank desiccator casing, realize drying the material under vacuum condition, reach the purpose that reduces the required temperature of drying, simultaneously, the utility model discloses a set up a plurality of steam exhaust outlets on the casing of tube bank desiccator, a plurality of steam exhaust outlets all communicate with the steam exhaust pipeline, then, the secondary steam in the tube bank desiccator casing is discharged through a plurality of steam exhaust outlets to reduce the velocity of flow of secondary steam, prevent that secondary steam from carrying the dust material in the tube bank desiccator, thereby improve the material rate of recovery, reduce the waste of raw and other materials.
3. The utility model discloses the temperature of required raw steam is lower relatively when drying wet material under vacuum condition, the burnt phenomenon of pasting of material can not appear, guarantees the material quality, can not cause destruction to the material, thereby makes the utility model discloses also can be used to the drying of heat sensitive material. Meanwhile, burnt waste steam cannot be generated.
4. The secondary steam generated by the vacuum tube bundle dryer for drying materials is firstly washed by the washing tower under the action of the vacuum pump, the secondary steam enters the shell pass of the waste heat evaporator, condensed water and uncondensed steam generated by cooling and condensing the steam in the tube bundle of the vacuum tube bundle dryer enter a condensed water collecting tank for collection, the condensed water enters the waste heat evaporator under the action of a delivery pump, the heat exchange is carried out between the condensed water in the waste heat evaporator and the washed secondary steam, the temperature of the condensed water is raised to generate steam, the steam is separated by a gas-liquid separator, and after the temperature is raised through compression by the two-stage compressor, the material is dried by entering the tube bundle dryer again, condensed water generated by cooling and condensing the secondary steam enters the washing tower to be used as washing water, the non-condensed secondary steam is discharged under the action of vacuum, and the vacuum degree in the tube bundle dryer can be ensured by discharging the non-condensed secondary steam. The uncondensed steam entering the condensed water collecting tank enters the washing tower through the exhaust pipeline to be washed and then is also sent to the waste heat evaporator to participate in heat exchange and be exhausted by the vacuum pump, and the pressure in the condensed water collecting tank can be adjusted by adjusting the exhaust valve on the exhaust pipeline.
5. The utility model discloses set up wind and send the material system of receiving, the material after the drying sends the principle through wind and gets into pulse dust collector and feed bin collection, at last by packagine machine packing, wind sends the air heat exchanger's of receiving the material system setting, utilize the temperature of washing water in the scrubbing tower, the air in the air heat exchanger is got into in the heating, thereby the relative humidity who makes the air of participating in wind and sending the material reduces, the temperature risees, thereby can effectually avoid the influence of moisture content in the air to the material after the drying, avoid the material caking, send further dry material of in-process simultaneously at wind.
6. The utility model discloses a washing tower passes through the washing water pump intercommunication exhaust steam pipeline, can utilize the washing water in the washing tower to wash vacuum tube bank desiccator after production is accomplished.
7. The utility model discloses a discharge gate intercommunication compounding auger's of the sealed auger of ejection of compact feed inlet, the partial material after the drying is sent into the compounding auger, mixes with new wet material intensive mixing in the compounding auger, and moisture in dry material can tentatively and the wet material, and the effectual material that prevents to get into in the tube bank desiccator is because of the too big bonding phenomenon that still appears of moisture.
8. The utility model discloses simple structure, convenient to use, cost are low, the range of application is wide, the temperature of the required raw steam of reduction material drying that can be fine, and the waste heat in the secondary steam that produces when will dry the material simultaneously carries out recycle, carries out recycle to the comdenstion water to effectual reduction energy resource consumption reduces the emission of waste gas and water, and the water economy resource reaches energy saving and emission reduction purpose.
Description of the drawings:
fig. 1 is a schematic structural diagram of the present invention.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings.
As shown in figure 1, an MVR vacuum tube bundle drying system with a waste steam conversion device comprises a vacuum tube bundle drying machine 1, a washing tower 2, a waste heat evaporator 3, a gas-liquid separator 4, a water vapor compression device and a condensed water collecting tank 5, wherein a waste steam outlet 13 of the vacuum tube bundle drying machine 1 is communicated with an air inlet of the washing tower 2 through a waste steam pipeline 18, the waste heat evaporator 3 is a tubular heat exchanger, a shell pass air inlet of the waste heat evaporator 3 is communicated with an air outlet of the washing tower 2, a shell pass air outlet of the waste heat evaporator 3 is communicated with an air inlet of a vacuum pump 6, an air outlet of the vacuum pump 6 is communicated with the atmosphere, a condensed water outlet of the vacuum tube bundle drying machine 1 is communicated with the condensed water collecting tank 5, a water outlet of the condensed water collecting tank 5 is communicated with a tube pass feed inlet of the waste heat evaporator 3 through a condensed water conveying pump 7, and a circulating water outlet is arranged at the lower, the upper end of the washing tower 2 is provided with a circulating water inlet, a circulating water outlet is communicated with a circulating water inlet through a circulating pump 8, the circulating water inlet and the circulating water outlet are both communicated with a tube pass of the waste heat evaporator 3, a tube pass discharge port of the waste heat evaporator 3 is communicated with a feed inlet of a gas-liquid separator 4, an air outlet of the gas-liquid separator 4 is communicated with an air inlet of a water vapor compression device, a liquid outlet of the gas-liquid separator 4 is communicated with a circulating water outlet of the waste heat evaporator 3, an air outlet of the water vapor compression device is communicated with a steam inlet of the vacuum tube bundle dryer 1, an air inlet of the water vapor compression device is communicated with a steam generation device 9 through a steam conveying pipeline 29, a water outlet is arranged at the lower end of the washing tower 2, a water outlet of the washing tower 2 is communicated with a washing circulating water inlet, the washing water inlet is communicated with a clean water source 10, and the water outlet at the lower end of the washing tower 2 is communicated with the waste steam pipeline 18 through a washing water pump 31 and a washing pipeline 32.
The water vapor compression device comprises a first vapor compressor 27 and a second vapor compressor 28, wherein an air inlet of the first vapor compressor 27 is communicated with an air outlet of the gas-liquid separator 4, an air outlet of the first vapor compressor 27 is communicated with an air inlet of the second vapor compressor 28, an air outlet of the second vapor compressor 28 is communicated with a vapor inlet of the vacuum tube bundle dryer 1, an air inlet of the first vapor compressor 27 is communicated with the vapor generation device 9 through a vapor conveying pipeline 29, and an air supplementing valve 30 is arranged on the vapor conveying pipeline 29.
Vacuum tube bank desiccator 1 include feed arrangement, tube bank desiccator 11, discharging device 12 one side of tube bank desiccator 11 set up the feed inlet, the opposite side sets up the discharge gate, tube bank desiccator 11's feed inlet intercommunication feed arrangement, tube bank desiccator 11's discharge gate intercommunication discharging device 12 sets up exhaust steam outlet 13 on tube bank desiccator 11's the casing, exhaust steam outlet 13's quantity be a plurality of, a plurality of exhaust steam outlets 13 arrange along tube bank desiccator 11's length direction, a plurality of exhaust steam outlets 13 all communicate with exhaust steam pipeline 18. The pivot 15 and the casing at tube bank both ends of tube bank desiccator 11 pass through mechanical seal swing joint, transmission 14 is connected to the one end of pivot 15, pivot 15 be the hollow shaft, its inner chamber intercommunication tube bank of tube bank desiccator 11, set up steam inlet in the pivot 15 of discharge gate one side of tube bank desiccator 11, set up the comdenstion water export in the pivot 15 of the feed inlet one side of tube bank desiccator 11, feed arrangement include compounding auger 16 and feeding auger 17, the feed inlet and the material source 38 intercommunication of compounding auger 16, the discharge gate intercommunication feeding auger 17's of compounding auger 16 feed inlet, the discharge gate intercommunication tube bank desiccator 11's of feed auger 17 feed inlet, feed auger 17 be airtight auger, discharging device 12 be airtight ejection of compact auger, airtight ejection of compact auger's feed inlet intercommunication tube bank desiccator 11's discharge gate, the discharge hole of the closed discharge auger is communicated with the air feeding and receiving system and the feed inlet of the mixing auger 16. The air-conveying and material-receiving system comprises an air heat exchanger 19, an air-conveying pipeline 20, an air-conveying fan 21, a pulse dust collector 22, an air-closing discharger 23, a storage bin 24 and a packing machine 25, wherein an air inlet of the air heat exchanger 19 is communicated with the atmosphere, an air outlet of the air heat exchanger 19 is communicated with an air inlet of the air-conveying fan 21 through the air-conveying pipeline 20, an exchange medium inlet of the air heat exchanger 19 is communicated with a liquid outlet of a washing water circulating pump 39 of a washing tower 2 through a medium pipeline, an exchange medium outlet of the air heat exchanger 19 is communicated with an exchange medium outlet of the air heat exchanger 19, a feed inlet is arranged on the air-conveying pipeline 20, the feed inlet of the air-conveying pipeline 20 is communicated with a discharge port of a closed discharge auger of the vacuum tube bundle dryer 1, an air outlet of the air-conveying fan 21 is communicated with a sewage treatment device 26 with the feed inlet of, the discharge port of the air-blocking discharger 23 is communicated with the feed port of the storage bin 24, the discharge port of the storage bin 24 is communicated with the packing machine 25, and the air outlet at the upper end of the pulse dust collector 22 is communicated with the atmosphere.
The upper end of condensate water collection tank 5 be provided with the gas vent, the gas vent pass through exhaust pipe 33 and communicate the air inlet of scrubbing tower 2, exhaust pipe 33 on be provided with governing valve 34, the delivery port of condensate water collection tank 5 pass through the water inlet of conveying pipeline intercommunication condensate water delivery pump 7, the conveying pipeline on be provided with delivery valve 35, the delivery port of condensate water collection tank 5 pass through water drainage pipeline 37 and communicate sewage treatment plant 26, water drainage pipeline 37 on be provided with drain valve 36.
When the device is used, the transmission device 14 is started, the raw steam preheating system is started, the closed discharging auger, the mixing auger 16, the feeding auger 17 and the transmission device 14 are started to drive the rotating shaft 15 of the tube bundle dryer 11 and the tube bundle to rotate, wet materials are sent into the mixing auger 16, are conveyed to the feeding auger 17 through the mixing auger 16 and then are conveyed into the tube bundle dryer 11 from the feeding port of the tube bundle dryer 11 by the feeding auger 17, the tube bundle rotates, the material is shoveled by shoveling plates arranged at the periphery of the tube bundle and conveyed to the upper part of the shell, then the materials fall under the action of self weight and are scattered among the tube bundles, the raw steam enters the tube bundle inner cavity of the tube bundle dryer 11 after being compressed and heated by the first steam compressor 27 and the second steam compressor 28 and flows in the tube bundle inner cavity, in the process, the heat of the raw steam exchanges heat with the wet materials through the tube wall of the tube bundle, the, the wet material absorbs heat, the moisture in the wet material is evaporated, the wet material is dried, the generated steam is cooled and condensed into condensed water, then the condensed water enters a condensed water collecting tank 5 to be collected, a conveying valve 35 and a condensed water conveying pump 7 are opened, the condensed water in the condensed water collecting tank 5 enters a tube pass of a waste heat evaporator 3 under the action of the condensed water conveying pump 7, a vacuum pump 6 is started, secondary steam generated by drying and evaporating the wet material enters a waste steam pipeline 18 from a waste steam outlet 13 in a shell of a tube bundle dryer 11 under the action of the vacuum pump 6, the secondary steam enters a washing tower 2 from the waste steam pipeline 18, part of dust materials carried in the secondary steam are washed under the action of circulating washing water in the washing tower 2, the temperature of the washing water is increased, the temperature of the secondary steam is reduced, the washed secondary steam enters a shell pass of the waste heat evaporator 3, and heat exchange is carried out between the secondary steam and the condensed water in the waste heat evaporator, the condensed water is heated up again to generate steam, the secondary steam is cooled and condensed, the condensed water generated by condensing the secondary steam enters the washing tower 2 to be collected, uncondensed gas is discharged from the vacuum pump 6, the steam generated by the condensed water enters the gas-liquid separator 4 to be subjected to gas-liquid separation, and the water steam enters the first steam compressor 27 and the second steam compressor 28 to be compressed and heated up twice and then enters the tube bundle of the tube bundle dryer 11 to participate in material drying. Thereby realizing the cyclic utilization of the condensed water and the waste heat recycling of the secondary steam.
The materials dried by the tube bundle dryer 11 are discharged from a discharge port and enter a closed discharge auger, one part of the dried materials enter the mixing auger 16 and are uniformly mixed with wet materials in the mixing auger 16 to preheat the wet materials, the other part of the dried materials enter an air conveying pipeline 20, a washing circulating pump 8 sends part of washing water with temperature to an air heat exchanger, the washing water and the air exchange in the air heat exchanger, the air temperature is increased, the humidity is reduced, the dried materials entering the air conveying pipeline 20 and the heated air enter a pulse dust collector 22 along the air conveying pipeline 20 under the action of an air conveying fan 21, the materials in the pulse dust collector 22 are collected, the materials enter a storage bin 24 from an air-closed discharger 23 for storage, and finally the materials are packaged by a packaging machine 25, and the air is discharged from an exhaust port at the upper end of the pulse dust collector 22.
After the steam in the tube bank of tube bank desiccator 11 and the wet material heat exchange, the steam condensation becomes the comdenstion water, the comdenstion water gets into condensate water collection tank 5 and collects, and simultaneously, the steam of noncondensation in the tube bank also gets into in condensate water collection tank 5, condensate water collection tank 5 discharges to scrubbing tower 2 through exhaust pipe 33, wash the back in scrubbing tower 2 and get into waste heat evaporator 3 along with the secondary steam after the washing and carry out waste heat recovery together, be provided with governing valve 34 on the exhaust pipe 33, can keep the pressure stability in condensate water collection tank 5 through adjusting governing valve 34.
After the primary production is finished, the washing water pump 31 can be started, and washing water is introduced into the shell of the tube bundle dryer 11 through the washing pipeline and the waste steam pipeline 18, so that the tube bundle dryer 11 can be washed and cleaned.
It should be noted that the above-mentioned embodiments are illustrative and not restrictive of the technical solutions of the present invention, and equivalents of those skilled in the art or other modifications made according to the prior art are intended to be included within the scope of the claims of the present invention as long as they do not exceed the spirit and scope of the technical solutions of the present invention.
Claims (7)
1. The utility model provides a MVR vacuum tube bank drying system with exhaust steam conversion equipment which characterized in that: comprises a vacuum tube bank dryer (1), a washing tower (2), a waste heat evaporator (3), a gas-liquid separator (4), a water vapor compression device and a condensed water collecting tank (5), wherein a waste vapor outlet (13) of the vacuum tube bank dryer (1) is communicated with an air inlet of the washing tower (2) through a waste vapor pipeline (18), the waste heat evaporator (3) is a tubular heat exchanger, a shell pass air inlet of the waste heat evaporator (3) is communicated with an air outlet of the washing tower (2), a shell pass air outlet of the waste heat evaporator (3) is communicated with an air inlet of a vacuum pump (6), an air outlet of the vacuum pump (6) is communicated with the atmosphere, a condensed water outlet of the vacuum tube bank dryer (1) is communicated with the condensed water collecting tank (5), a water outlet of the condensed water collecting tank (5) is communicated with a tube pass feed inlet of the waste heat evaporator (3) through a condensed water conveying pump (7), the lower end of the waste heat evaporator (3) is provided with a circulating water outlet, the upper end of the waste heat evaporator (3) is provided with a circulating water inlet, the circulating water outlet is communicated with the circulating water inlet through a circulating pump (8), the circulating water inlet and the circulating water outlet are both communicated with a tube pass of the waste heat evaporator (3), a tube pass discharge port of the waste heat evaporator (3) is communicated with a feed inlet of a gas-liquid separator (4), a gas outlet of the gas-liquid separator (4) is communicated with a gas inlet of a water vapor compression device, a liquid outlet of the gas-liquid separator (4) is communicated with a circulating water outlet of the waste heat evaporator (3), a gas outlet of the water vapor compression device is communicated with a steam inlet of a vacuum tube bundle dryer (1), a gas inlet of the water vapor compression device is communicated with a steam generation device (9) through a steam conveying pipeline (29), and a water, the water outlet of the washing tower (2) is communicated with the washing circulation water inlet of the washing tower (2) through a washing circulation pump (8), the washing tower (2) is provided with a washing water inlet, and the washing water inlet is communicated with a clear water source (10).
2. The MVR vacuum tube bundle drying system with waste steam shift device of claim 1, characterized in that: vacuum tube bank desiccator (1) including feed arrangement, tube bank desiccator (11), discharging device (12), one side of tube bank desiccator (11) set up the feed inlet, the opposite side sets up the discharge gate, the feed inlet intercommunication feed arrangement of tube bank desiccator (11), the discharge gate intercommunication discharging device (12) of tube bank desiccator (11), set up exhaust steam outlet (13) on the casing of tube bank desiccator (11), pivot (15) and the casing at the tube bank both ends of tube bank desiccator (11) pass through mechanical seal swing joint, transmission (14) are connected to the one end of pivot (15), pivot (15) be the hollow shaft, its inner chamber communicates the tube bank of tube bank desiccator (11), set up steam inlet on pivot (15) of discharge gate one side of tube bank desiccator (11), set up the comdenstion water export on pivot (15) of feed inlet one side of tube bank desiccator (11), feed arrangement include compounding auger (16) and feeding auger (17), the feed inlet and material source (38) intercommunication of compounding auger (16), the feed inlet of discharge gate intercommunication feeding auger (17) of compounding auger (16), the feed inlet of discharge gate intercommunication tube bank desiccator (11) of feeding auger (17), feeding auger (17) be airtight auger, discharging device (12) be airtight ejection of compact auger, the feed inlet of airtight ejection of compact auger intercommunication tube bank desiccator (11) the discharge gate, the discharge gate intercommunication wind of airtight ejection of compact auger send the feed inlet of receiving system and compounding auger (16).
3. The MVR vacuum tube bundle drying system with an exhaust steam conversion device according to claim 2, wherein: the number of the waste steam outlets (13) is multiple, the waste steam outlets (13) are arranged along the length direction of the tube bundle dryer (11), and the waste steam outlets (13) are all communicated with a waste steam pipeline (18).
4. The MVR vacuum tube bundle drying system with an exhaust steam conversion device according to claim 2, wherein: the air-conveying material-receiving system comprises an air heat exchanger (19), an air-conveying pipeline (20), an air-conveying fan (21), a pulse dust collector (22), a closed air discharger (23), a storage bin (24) and a packing machine (25), wherein an air inlet of the air heat exchanger (19) is communicated with the atmosphere, an air outlet of the air heat exchanger (19) is communicated with an air inlet of the air-conveying fan (21) through the air-conveying pipeline (20), an exchange medium inlet of the air heat exchanger (19) is communicated with a liquid outlet of a washing water circulating pump (39) of a washing tower (2) through a medium pipeline, an exchange medium outlet of the air heat exchanger (19) is communicated, a feed inlet is formed in the air-conveying pipeline (20), a feed inlet of the air-conveying pipeline (20) is communicated with a discharge outlet of a closed discharge auger of a vacuum tube bundle dryer (1), an air outlet of the air-conveying fan (21) is communicated with a feed inlet of the pulse dust collector (22, an air closing discharger (23) is arranged on a discharge hole at the lower end of the pulse dust collector (22), the discharge hole of the air closing discharger (23) is communicated with a feed hole of a storage bin (24), the discharge hole of the storage bin (24) is communicated with a packing machine (25), and an air outlet at the upper end of the pulse dust collector (22) is communicated with the atmosphere.
5. The MVR vacuum tube bundle drying system with waste steam shift device of claim 1, characterized in that: the water vapor compression device comprises a first vapor compressor (27) and a second vapor compressor (28), wherein an air inlet of the first vapor compressor (27) is communicated with an air outlet of the gas-liquid separator (4), an air outlet of the first vapor compressor (27) is communicated with an air inlet of the second vapor compressor (28), an air outlet of the second vapor compressor (28) is communicated with a vapor inlet of the vacuum tube bundle dryer (1), an air inlet of the first vapor compressor (27) is communicated with the vapor generation device (9) through a vapor conveying pipeline (29), and an air supplement valve (30) is arranged on the vapor conveying pipeline (29).
6. The MVR vacuum tube bundle drying system with waste steam shift device of claim 1, characterized in that: the water outlet at the lower end of the washing tower (2) is communicated with the waste steam pipeline (18) through a washing water pump (31) and a washing pipeline (32).
7. The MVR vacuum tube bundle drying system with waste steam shift device of claim 1, characterized in that: the upper end of condensate water collection tank (5) be provided with the gas vent, the gas vent pass through the air inlet of exhaust pipe (33) intercommunication scrubbing tower (2), exhaust pipe (33) on be provided with governing valve (34), the delivery port of condensate water collection tank (5) pass through the water inlet of conveying pipeline intercommunication condensate water delivery pump (7), the conveying pipeline on be provided with delivery valve (35), the delivery port of condensate water collection tank (5) pass through drain line (37) intercommunication sewage treatment plant (26), drain line (37) on be provided with drain valve (36).
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| CN201921872599.2U CN210773189U (en) | 2019-11-02 | 2019-11-02 | MVR vacuum tube bundle drying system with waste steam conversion device |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110671907A (en) * | 2019-11-02 | 2020-01-10 | 郑州博大浓缩干燥设备有限公司 | MVR vacuum tube bundle drying system with waste steam conversion device |
| CN113739554A (en) * | 2021-10-14 | 2021-12-03 | 北京华源泰盟节能设备有限公司 | Material drying system and material drying method |
| CN114754564A (en) * | 2022-05-13 | 2022-07-15 | 江苏格兰特干燥浓缩设备有限公司 | Low-energy-consumption tube bundle drying machine and using method thereof |
| CN115451664A (en) * | 2022-09-19 | 2022-12-09 | 江苏格兰特干燥浓缩设备有限公司 | Energy-saving tube bundle dryer with waste heat recycling function and using method thereof |
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2019
- 2019-11-02 CN CN201921872599.2U patent/CN210773189U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110671907A (en) * | 2019-11-02 | 2020-01-10 | 郑州博大浓缩干燥设备有限公司 | MVR vacuum tube bundle drying system with waste steam conversion device |
| CN113739554A (en) * | 2021-10-14 | 2021-12-03 | 北京华源泰盟节能设备有限公司 | Material drying system and material drying method |
| CN114754564A (en) * | 2022-05-13 | 2022-07-15 | 江苏格兰特干燥浓缩设备有限公司 | Low-energy-consumption tube bundle drying machine and using method thereof |
| CN115451664A (en) * | 2022-09-19 | 2022-12-09 | 江苏格兰特干燥浓缩设备有限公司 | Energy-saving tube bundle dryer with waste heat recycling function and using method thereof |
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