CN219023262U - Low-temperature closed-loop circulation spray drying system - Google Patents
Low-temperature closed-loop circulation spray drying system Download PDFInfo
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- CN219023262U CN219023262U CN202223593907.2U CN202223593907U CN219023262U CN 219023262 U CN219023262 U CN 219023262U CN 202223593907 U CN202223593907 U CN 202223593907U CN 219023262 U CN219023262 U CN 219023262U
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Abstract
The application relates to a low temperature closed cycle spray drying system belongs to the spray drying field, and it includes heater, drying tower and the cyclone that sets gradually, is linked together through the intake pipe between heater and the drying tower, and the one end intercommunication that the intake pipe was kept away from to the heater has the gas tube, is connected with the inlet pipe on the drying tower, is linked together through the shunt tubes between drying tower and the cyclone, is equipped with first control valve on the shunt tubes, is connected through circulating assembly between cyclone and the gas tube. The heater, the drying tower, the cyclone separator and the circulating assembly are matched to form a closed-cycle drying system so as to recycle nitrogen for drying materials, and the step that an operator spends extra time processing nitrogen is reduced, so that the drying efficiency of the materials is improved.
Description
Technical Field
The application relates to the field of spray drying, in particular to a low-temperature closed-loop circulation spray drying system.
Background
A spray dryer is a device that can accomplish both drying and granulation.
In the related art, the spray dryer mainly comprises a drying cylinder, a feed inlet and a discharge outlet are formed in the drying cylinder, control valves are arranged at the feed inlet and the discharge outlet, a centrifugal sprayer is arranged at the feed inlet, and an air inlet pipe is communicated with the drying cylinder. When the material needs to be dried, an operator now introduces nitrogen with higher temperature into the drying cylinder through the air inlet pipe, then the material is placed in from the feed inlet, and at the moment, the centrifugal sprayer atomizes the material to increase the contact area of the material and the nitrogen with higher temperature, so that the material is dried, and the dried material is discharged through the discharge port. And after the atomized material contacts with nitrogen with higher temperature, partial organic solvent gas is easy to generate.
For the related art, the inventor finds that when the materials are discharged, the nitrogen gas subjected to heat exchange in the drying cylinder is discharged together with the nitrogen gas, a large amount of nitrogen gas with residual heat is wasted, and the direct discharge of the nitrogen gas does not meet the discharge standard, so that an operator is required to spend additional time to treat the discharged nitrogen gas, and the drying efficiency of the spray dryer is reduced, so that the improvement is needed.
Disclosure of Invention
To ameliorate the above problems, the present application provides a low temperature closed cycle spray drying system.
The application provides a low temperature closed cycle spray drying system adopts following technical scheme:
the utility model provides a low temperature closed cycle spray drying system for dry material, including heater, drying tower and the cyclone that sets gradually, be linked together through the intake pipe between heater and the drying tower, the one end intercommunication that the intake pipe was kept away from to the heater has the gas tube, be connected with the inlet pipe on the drying tower, be linked together through the shunt tubes between drying tower and the cyclone, be equipped with first control valve on the shunt tubes, be connected through circulation subassembly between cyclone and the gas tube.
Through adopting above-mentioned technical scheme, operating personnel lets in the pneumatic tube with nitrogen gas, nitrogen gas gets into the heater through the pneumatic tube, nitrogen gas after the heater heats passes through the intake pipe and gets into in the drying tower, operating personnel lets in the drying tower with the material from the inlet pipe again, material and the nitrogen gas contact after the heating, in order to realize the stoving of material, the material after the stoving is accomplished is discharged the drying tower, simultaneously first control valve starts and communicates drying tower and cyclone, at this moment under the inside negative pressure's of cyclone effect, nitrogen gas after the partial heating carries partial organic solvent gas and remaining material entering cyclone inside, so that dry remaining material, the remaining material after the drying is accomplished is discharged cyclone again, simultaneously nitrogen gas and organic solvent gas reentry separate in the circulation subassembly, so that nitrogen gas reentry pneumatic tube in, the step of operating personnel extra spending time processing nitrogen gas has been reduced, thereby the drying efficiency of material has been improved.
Preferably, the circulating assembly comprises a spray box, a condenser and a gas-water separator which are sequentially arranged, wherein the spray box is communicated with the cyclone separator through a first connecting pipe, the condenser is communicated with the spray box through a second connecting pipe, the gas-water separator is communicated with the condenser through a third connecting pipe, one end, far away from the third connecting pipe, of the gas-water separator is communicated with a circulating pipe, one end, far away from the gas-water separator, of the circulating pipe is communicated with a fan, and one end, far away from the circulating pipe, of the fan is communicated with an inflation pipe.
Through adopting above-mentioned technical scheme, nitrogen gas and organic solvent gas get into the spray box through first connecting pipe, spray the case and remove dust to nitrogen gas and organic solvent gas, organic solvent gas and nitrogen gas after the dust removal get into the condenser through the second connecting pipe, condensate into liquid discharge condenser through the condenser, rethread third connecting pipe lets in the gas-water separator and separate condensed liquid and nitrogen gas, and the fan starts and drives the nitrogen gas after the separation and get into the circulating pipe, the fan carries the nitrogen gas after the separation again in the gas-filled tube, in order to realize the cyclic utilization of nitrogen gas, the utilization ratio of nitrogen gas has been improved, the step of supplementing nitrogen gas and collecting nitrogen gas has been reduced simultaneously, thereby the drying efficiency of material has been improved.
Preferably, the drying tower is communicated with a pressure relief pipe, and the pressure relief pipe is provided with a second control valve.
Through adopting above-mentioned technical scheme, operating personnel opens the second control valve, and the pressure release pipe intercommunication external world and drying tower for the pressure in the drying tower is difficult too high, so that the material is comparatively stable to dry.
Preferably, a turbulence assembly for disturbing the material is arranged in the drying tower.
Through adopting above-mentioned technical scheme, the vortex subassembly is disturbed material and nitrogen gas in the drying tower, has further increased the area of contact between them to the drying efficiency of material has further been improved.
Preferably, the spoiler assembly comprises a plurality of spoilers, each spoiler is rotationally connected inside the drying tower, each rotation shaft of each spoiler is arranged along the vertical direction, each spoiler is uniformly arranged in the drying tower along the vertical direction, a control assembly for controlling each spoiler to rotate is arranged on the drying tower, and each spoiler extends out of the drying tower and is connected with the control assembly.
Through adopting above-mentioned technical scheme, operating personnel starts control assembly, and each spoiler of control assembly control rotates in step, and each spoiler makes the inside vortex that appears of drying tower, has increased the area of contact of nitrogen gas and material on the one hand, has accelerated the mixture of nitrogen gas and material on the other hand to the drying efficiency of material has further been improved.
Preferably, the control assembly comprises a control cylinder, a control plate and a connecting plate, a first supporting plate is connected to the drying tower, the control cylinder is arranged on the first supporting plate, the control plate is connected with the output end of the control cylinder, the control plate is slidably connected to the first supporting plate, the connecting plate is arranged on the control plate along the vertical direction, the control plate is hinged to one side, close to the first supporting plate, of the connecting plate, and each spoiler is hinged to the connecting plate after extending out of the drying tower.
Through adopting above-mentioned technical scheme, control cylinder starts and drives the control panel and slide, and the control panel drives the connecting plate again and removes, and the connecting plate drives each spoiler and rotate to form the vortex in the drying tower, at this moment under control cylinder, control panel and connecting plate's effect, for each spoiler of operating personnel synchronous control provides convenience.
Preferably, the vortex subassembly still includes first vortex fan and second vortex fan, first vortex fan and second vortex fan all rotate and connect in the drying tower, first vortex fan and second vortex fan set up relatively, the drying tower external connection has the second backup pad, be equipped with first motor and second motor in the second backup pad, the output of first motor extends to in the drying tower and with the pivot coaxial coupling of first vortex fan, the output of second motor extends to in the drying tower and with the pivot coaxial coupling of second vortex fan.
Through adopting above-mentioned technical scheme, operating personnel starts first motor and second motor, and first motor drives first vortex fan and rotates, and the second motor drives the rotation of second vortex fan, and first vortex fan and second vortex fan are bloied each other and are produced the hedging plane, have increased area of contact and contact time of material and nitrogen gas to further improved the drying efficiency of material.
Preferably, sealing rings are arranged at the communication part of the first motor and the drying tower and the communication part of the second motor and the drying tower.
Through adopting above-mentioned technical scheme, the sealing ring has increased the leakproofness between the output of first motor and the output of second motor and the drying tower for the material is difficult for wafing out the drying tower, has reduced the possibility that the material loss appears.
In summary, the present application includes at least one of the following beneficial technical effects:
1. by arranging the drying tower, the cyclone separator and the circulating assembly, a closed-cycle drying system is formed, the step that an operator spends extra time processing used nitrogen is reduced, the drying efficiency of materials is improved, meanwhile, the waste of the nitrogen is reduced, and part of resources are saved;
2. by arranging the pressure relief pipe, the pressure in the drying tower is not easy to be too high, so that the materials are dried more stably;
3. through setting up vortex subassembly for produce the disturbance between nitrogen gas and the material, increased the area of contact of both, thereby further improved the drying efficiency of material.
Drawings
FIG. 1 is a schematic overall structure of a first embodiment of the present application;
fig. 2 is a schematic overall structure of a second embodiment of the present application.
Reference numerals illustrate: 1. a heater; 11. an air inlet pipe; 12. an inflation tube; 2. a drying tower; 21. a shunt; 211. a first control valve; 22. a centrifugal atomizer; 23. a discharge pipe; 231. a first manual valve; 232. a second manual valve; 24. a pressure relief tube; 241. a second control valve; 25. a first support plate; 26. a second support plate; 261. a first motor; 262. a second motor; 3. a cyclone separator; 4. a circulation assembly; 41. a spray box; 411. a first connection pipe; 42. a condenser; 421. a second connection pipe; 43. a gas-water separator; 431. a third connection pipe; 44. a circulation pipe; 5. a spoiler assembly; 51. a spoiler; 52. a first turbulent fan; 53. a second turbulent fan; 54. a seal ring; 6. a control assembly; 61. a control cylinder; 62. a control board; 63. a connecting plate; 7. a blower; 8. and (5) feeding a pipe.
Detailed Description
The present application is described in further detail below in conjunction with figures 1-2.
Embodiment one:
the embodiment of the application discloses a low-temperature closed-loop circulation spray drying system. Referring to fig. 1, a low-temperature closed cycle spray drying system comprises a heater 1, a drying tower 2 and a cyclone separator 3 which are sequentially arranged, wherein the heater 1 is communicated with the drying tower 2 through an air inlet pipe 11, one end, far away from the air inlet pipe 11, of the heater 1 is communicated with an air charging pipe 12, the drying tower 2 is communicated with the cyclone separator 3 through a split pipe 21, a first control valve 211 is arranged on the split pipe 21, and the cyclone separator 3 is connected with the air charging pipe 12 through a circulation assembly 4.
The heater 1, the drying tower 2, the cyclone separator 3 and the circulating assembly 4 are matched to form a closed-cycle drying system, at the moment, nitrogen enters the heater 1 through the air charging pipe 12, then enters the drying tower 2 through the air charging pipe 11, then enters the cyclone separator 3 through the split pipe 21, and then returns to the air charging pipe 12 through the circulating assembly 4 again, so that the function of nitrogen closed-cycle is realized, the step of processing nitrogen by an operator for extra time is reduced, and the drying efficiency of materials is improved.
Referring to fig. 1, a centrifugal sprayer 22 is provided at a connection point between the feed pipe 8 and the drying tower 2, and the centrifugal sprayer 22 is fixed to the drying tower 2. After the material enters from the feeding pipe 8, the material is atomized after being treated by the centrifugal sprayer 22, so that the contact area of the material and nitrogen is increased, and the drying efficiency of the material is improved.
One side of the drying tower 2, which is far away from the feeding pipe 8, is communicated with a discharging pipe 23, a first manual valve 231 and a second manual valve 232 are arranged in the discharging pipe 23, and the first manual valve 231 is arranged right above the second manual valve 232. When the material is required to be dried, the first manual valve 231 is in an open state, the second manual valve 232 is in a closed state, and the dried material directly falls between the first manual valve 231 and the second manual valve 232. When more materials are arranged between the first manual valve 231 and the second manual valve 232, the first manual valve 231 is closed, the second manual valve 232 is opened, so that the dried materials fall from the discharging pipe 23, and at the moment, nitrogen in the drying tower 2 is not easy to flow out from the discharging pipe 23 along with the materials in a large quantity under the action of the first manual valve 231 and the second manual valve 232, so that the nitrogen can be recycled.
Referring to fig. 1, in order to reduce the possibility of the pressure in the drying tower 2 being too high, the drying tower 2 is connected to the pressure release pipe 24, and the pressure release pipe 24 is provided with a second control valve 241. The operator opens the second control valve 241, so that the pressure inside the drying tower 2 can be relieved, and the material can be dried more stably.
Referring to fig. 1, the circulation assembly 4 includes a spray tank 41, a condenser 42, and a gas-water separator 43 sequentially arranged, the spray tank 41 is communicated with the cyclone separator 3 through a first connecting pipe 411, the condenser 42 is communicated with the spray tank 41 through a second connecting pipe 421, the gas-water separator 43 is communicated with the condenser 42 through a third connecting pipe 431, one end, far away from the third connecting pipe 431, of the gas-water separator 43 is communicated with a circulation pipe 44, one end, far away from the gas-water separator 43, of the circulation pipe 44 is communicated with a fan 7, and one end, far away from the circulation pipe 44, of the fan 7 is communicated with the inflation pipe 12.
After the drying of the material is completed, the first control valve 211 is started and communicated with the drying tower 2 and the cyclone separator 3, at this time, under the action of negative pressure in the cyclone separator 3, part of heated nitrogen carries organic solvent gas and the rest of the material into the cyclone separator 3, so as to dry the rest of the material, and the rest of the dried material is discharged out of the cyclone separator 3.
At the same time, nitrogen and organic solvent gas enter the spray tank 41 through the first connecting pipe 411, and the spray tank 41 removes dust from the nitrogen and organic solvent gas. The dedusted organic solvent gas and nitrogen enter the condenser 42 through the second connecting pipe 421, are condensed into liquid through the condenser 42, are discharged out of the condenser 42, and are introduced into the gas-water separator 43 through the third connecting pipe 431 to separate the condensed liquid from the nitrogen. And the fan 7 is started and drives the separated nitrogen to enter the circulating pipe 44, and the fan 7 conveys the separated nitrogen to the air charging pipe 12 to realize the recycling of the nitrogen, so that the utilization rate of the nitrogen is improved, and meanwhile, the steps of supplementing the nitrogen and collecting the nitrogen are reduced, so that the drying efficiency of materials is improved.
Referring to fig. 1, in order to further improve the drying efficiency of the material, a turbulence assembly 5 for disturbing the material is provided in the drying tower 2.
In this embodiment, the spoiler assembly 5 includes a plurality of spoilers 51, each spoiler 51 is rotatably connected inside the drying tower 2, and the rotation shafts of each spoiler 51 are all disposed along the vertical direction. And the respective spoilers 51 are uniformly disposed in the drying tower 2 in the vertical direction. The drying tower 2 is provided with a control assembly 6 for controlling the rotation of each spoiler 51.
The control assembly 6 includes a control cylinder 61, a control plate 62 and a connection plate 63, the drying tower 2 is connected with the first support plate 25, the control cylinder 61 is fixed on the first support plate 25, the control plate 62 is connected with the output end of the control cylinder 61, and the control plate 62 is slidably connected on the first support plate 25. The connection plates 63 are disposed on the control plate 62 in the vertical direction, the control plate 62 is ball-hinged to one side of the connection plates 63 close to the first support plate 25, and one end of each spoiler 51 located outside the drying tower 2 is hinged to the connection plates 63.
The operating personnel starts control cylinder 61, and control cylinder 61 drives control panel 62 and removes, and control panel 62 drives connecting plate 63 and removes, and connecting plate 63 drives each spoiler 51 and rotates in step again, and each spoiler 51 collides with nitrogen gas and material for nitrogen gas and material appear the vortex, have further increased the area of contact and the speed of mixing of both, thereby have further accelerated the drying rate of material, thereby have improved the drying efficiency of material.
The implementation principle of the first embodiment of the application is as follows: the operator passes through nitrogen gas through gas tube 12, and the nitrogen gas rethread intake pipe 11 after the heating of heater 1 gets into in the drying tower 2, and the operator rethread inlet pipe 8 carries the material to in the drying tower 2, and the material contacts with the nitrogen gas after the heating and realizes dry function. The dried materials are discharged out of the drying tower 2, and at the moment, the nitrogen and the organic solvent gas enter the cyclone separator 3 to be further separated from the materials and then enter the circulating assembly 4 to be separated, so that the nitrogen reenters the gas charging pipe 12, the recycling of the nitrogen is realized, the step that an operator spends extra time to treat the nitrogen is reduced, and the drying efficiency of the nitrogen is improved.
Embodiment two:
referring to fig. 2, the first embodiment of the present application is different from the first embodiment in that: the spoiler assembly 5 further comprises a first spoiler fan 52 and a second spoiler fan 53, and the first spoiler fan 52 and the second spoiler fan 53 are both rotatably connected in the drying tower 2. The first and second turbolating fans 52 and 53 are disposed opposite to each other. The drying tower 2 is externally connected with a second supporting plate 26, a first motor 261 and a second motor 262 are fixed on the second supporting plate 26, the output end of the first motor 261 extends into the drying tower 2 and is coaxially fixed with the rotating shaft of the first turbolating fan 52, and the output end of the second motor 262 extends into the drying tower 2 and is coaxially fixed with the rotating shaft of the second turbolating fan 53.
In the process of drying materials, the first motor 261 and the second motor 262 are started simultaneously, the first motor 261 drives the first turbolating fan 52 to rotate, the second motor 262 drives the second turbolating fan 53 to rotate, the first turbolating fan 52 and the second turbolating fan 53 rotate and generate opposite flushing planes, the residence time of the materials in the drying tower 2 is prolonged under the action of the opposite flushing planes, and meanwhile, the first turbolating fan 52 and the second turbolating fan 53 stir the materials and nitrogen, so that the drying efficiency of the materials is further improved.
Referring to fig. 2, a sealing ring 54 is provided at both the connection between the first motor 261 and the drying tower 2 and the connection between the second motor 262 and the drying tower 2. In the embodiment of the present application, the sealing ring 54 is made of rubber, and the possibility that the materials fly out from the communication place between the first motor 261 and the second motor 262 and the drying tower 2 is reduced under the action of the sealing ring 54.
The implementation principle of the second embodiment of the application is as follows: the first vortex fan 52 and the second vortex fan 53 stir the material and the nitrogen gas, so that the mixing speed of the material and the nitrogen gas is accelerated, the nitrogen gas can dry the workpiece rapidly, and the opposite flushing plane formed by the first vortex fan 52 and the second vortex fan 53 increases the stay time of the material in the drying tower 2, so that the drying efficiency of the material is further improved.
The foregoing are all preferred embodiments of the present application, and are not intended to limit the scope of the present application in any way, therefore: all equivalent changes in structure, shape and principle of this application should be covered in the protection scope of this application.
Claims (8)
1. A low temperature closed cycle spray drying system for drying a material, characterized by: including heater (1), drying tower (2) and cyclone (3) that set gradually, be linked together through intake pipe (11) between heater (1) and the drying tower (2), the one end intercommunication that intake pipe (11) was kept away from to heater (1) has gas tube (12), be connected with inlet pipe (8) on drying tower (2), be linked together through shunt tubes (21) between drying tower (2) and cyclone (3), be equipped with first control valve (211) on shunt tubes (21), be connected through circulating assembly (4) between cyclone (3) and gas tube (12).
2. A low temperature closed cycle spray drying system according to claim 1, wherein: the circulating assembly (4) comprises a spray box (41), a condenser (42) and a gas-water separator (43) which are sequentially arranged, wherein the spray box (41) is communicated with the cyclone separator (3) through a first connecting pipe (411), the condenser (42) is communicated with the spray box (41) through a second connecting pipe (421), the gas-water separator (43) is communicated with the condenser (42) through a third connecting pipe (431), one end, far away from the third connecting pipe (431), of the gas-water separator (43) is communicated with a circulating pipe (44), one end, far away from the gas-water separator (43), of the circulating pipe (44) is communicated with a fan (7), and one end, far away from the circulating pipe (44), of the fan (7) is communicated with the inflation pipe (12).
3. A low temperature closed cycle spray drying system according to claim 1, wherein: the drying tower (2) is communicated with a pressure relief pipe (24), and a second control valve (241) is arranged on the pressure relief pipe (24).
4. A low temperature closed cycle spray drying system according to claim 1, wherein: a turbulent flow component (5) for disturbing materials is arranged in the drying tower (2).
5. A low temperature closed cycle spray drying system according to claim 4, wherein: the vortex subassembly (5) include a plurality of spoilers (51), each inside drying tower (2) is all rotated to spoiler (51), each the axis of rotation of spoiler (51) all sets up along vertical direction, each spoiler (51) evenly sets up in drying tower (2) along vertical direction, be equipped with on drying tower (2) and be used for controlling each spoiler (51) pivoted control assembly (6), each spoiler (51) all extends drying tower (2) and is connected with control assembly (6).
6. A low temperature closed cycle spray drying system according to claim 5, wherein: control assembly (6) are including control cylinder (61), control panel (62) and connecting plate (63), be connected with first backup pad (25) on drying tower (2), control cylinder (61) set up on first backup pad (25), control panel (62) are connected with the output of control cylinder (61), control panel (62) sliding connection is on first backup pad (25), connecting plate (63) set up on control panel (62) along vertical direction, control panel (62) are articulated with one side ball that connecting plate (63) are close to first backup pad (25), each spoiler (51) all articulate with connecting plate (63) after extending drying tower (2).
7. A low temperature closed cycle spray drying system according to claim 4, wherein: the vortex subassembly (5) still includes first vortex fan (52) and second vortex fan (53), first vortex fan (52) and second vortex fan (53) are all rotated and are connected in drying tower (2), first vortex fan (52) and second vortex fan (53) set up relatively, drying tower (2) external connection has second backup pad (26), be equipped with first motor (261) and second motor (262) on second backup pad (26), the output of first motor (261) extends to in drying tower (2) and with the pivot coaxial coupling of first vortex fan (52), the output of second motor (262) extends to in drying tower (2) and with the pivot coaxial coupling of second vortex fan (53).
8. A low temperature closed cycle spray drying system according to claim 7, wherein: the sealing rings (54) are arranged at the communication position of the first motor (261) and the drying tower (2) and the communication position of the second motor (262) and the drying tower (2).
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| Application Number | Priority Date | Filing Date | Title |
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| CN202223593907.2U CN219023262U (en) | 2022-12-30 | 2022-12-30 | Low-temperature closed-loop circulation spray drying system |
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| CN202223593907.2U CN219023262U (en) | 2022-12-30 | 2022-12-30 | Low-temperature closed-loop circulation spray drying system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117695690A (en) * | 2024-01-31 | 2024-03-15 | 山东齐鲁中牧生物科技有限公司 | Spray type drying device for producing mixed feed additive and preparation method thereof |
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2022
- 2022-12-30 CN CN202223593907.2U patent/CN219023262U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117695690A (en) * | 2024-01-31 | 2024-03-15 | 山东齐鲁中牧生物科技有限公司 | Spray type drying device for producing mixed feed additive and preparation method thereof |
| CN117695690B (en) * | 2024-01-31 | 2024-04-23 | 山东齐鲁中牧生物科技有限公司 | Spray type drying device for mixed feed additive production and preparation method of mixed feed additive |
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