CN114636283A - Powder fluidized drying machine - Google Patents
Powder fluidized drying machine Download PDFInfo
- Publication number
- CN114636283A CN114636283A CN202210317645.2A CN202210317645A CN114636283A CN 114636283 A CN114636283 A CN 114636283A CN 202210317645 A CN202210317645 A CN 202210317645A CN 114636283 A CN114636283 A CN 114636283A
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- Prior art keywords
- boiling
- air
- pipe
- powder
- cavity
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F26—DRYING
- F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
- F26B3/00—Drying solid materials or objects by processes involving the application of heat
- F26B3/02—Drying solid materials or objects by processes involving the application of heat by convection, i.e. heat being conveyed from a heat source to the materials or objects to be dried by a gas or vapour, e.g. air
- F26B3/06—Drying solid materials or objects by processes involving the application of heat by convection, i.e. heat being conveyed from a heat source to the materials or objects to be dried by a gas or vapour, e.g. air the gas or vapour flowing through the materials or objects to be dried
- F26B3/08—Drying solid materials or objects by processes involving the application of heat by convection, i.e. heat being conveyed from a heat source to the materials or objects to be dried by a gas or vapour, e.g. air the gas or vapour flowing through the materials or objects to be dried so as to loosen them, e.g. to form a fluidised bed
- F26B3/082—Drying solid materials or objects by processes involving the application of heat by convection, i.e. heat being conveyed from a heat source to the materials or objects to be dried by a gas or vapour, e.g. air the gas or vapour flowing through the materials or objects to be dried so as to loosen them, e.g. to form a fluidised bed arrangements of devices for distributing fluidising gas, e.g. grids, nozzles
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F26—DRYING
- F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
- F26B11/00—Machines or apparatus for drying solid materials or objects with movement which is non-progressive
- F26B11/12—Machines or apparatus for drying solid materials or objects with movement which is non-progressive in stationary drums or other mainly-closed receptacles with moving stirring devices
- F26B11/14—Machines or apparatus for drying solid materials or objects with movement which is non-progressive in stationary drums or other mainly-closed receptacles with moving stirring devices the stirring device moving in a horizontal or slightly-inclined plane
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F26—DRYING
- F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
- F26B21/00—Arrangements or duct systems, e.g. in combination with pallet boxes, for supplying and controlling air or gases for drying solid materials or objects
- F26B21/001—Drying-air generating units, e.g. movable, independent of drying enclosure
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F26—DRYING
- F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
- F26B21/00—Arrangements or duct systems, e.g. in combination with pallet boxes, for supplying and controlling air or gases for drying solid materials or objects
- F26B21/02—Circulating air or gases in closed cycles, e.g. wholly within the drying enclosure
- F26B21/04—Circulating air or gases in closed cycles, e.g. wholly within the drying enclosure partly outside the drying enclosure
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F26—DRYING
- F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
- F26B21/00—Arrangements or duct systems, e.g. in combination with pallet boxes, for supplying and controlling air or gases for drying solid materials or objects
- F26B21/06—Controlling, e.g. regulating, parameters of gas supply
- F26B21/08—Humidity
- F26B21/086—Humidity by condensing the moisture in the drying medium, which may be recycled, e.g. using a heat pump cycle
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F26—DRYING
- F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
- F26B25/00—Details of general application not covered by group F26B21/00 or F26B23/00
- F26B25/005—Treatment of dryer exhaust gases
- F26B25/007—Dust filtering; Exhaust dust filters
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F26—DRYING
- F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
- F26B25/00—Details of general application not covered by group F26B21/00 or F26B23/00
- F26B25/04—Agitating, stirring, or scraping devices
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F26—DRYING
- F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
- F26B3/00—Drying solid materials or objects by processes involving the application of heat
- F26B3/02—Drying solid materials or objects by processes involving the application of heat by convection, i.e. heat being conveyed from a heat source to the materials or objects to be dried by a gas or vapour, e.g. air
- F26B3/06—Drying solid materials or objects by processes involving the application of heat by convection, i.e. heat being conveyed from a heat source to the materials or objects to be dried by a gas or vapour, e.g. air the gas or vapour flowing through the materials or objects to be dried
- F26B3/08—Drying solid materials or objects by processes involving the application of heat by convection, i.e. heat being conveyed from a heat source to the materials or objects to be dried by a gas or vapour, e.g. air the gas or vapour flowing through the materials or objects to be dried so as to loosen them, e.g. to form a fluidised bed
- F26B3/092—Drying solid materials or objects by processes involving the application of heat by convection, i.e. heat being conveyed from a heat source to the materials or objects to be dried by a gas or vapour, e.g. air the gas or vapour flowing through the materials or objects to be dried so as to loosen them, e.g. to form a fluidised bed agitating the fluidised bed, e.g. by vibrating or pulsating
- F26B3/0926—Drying solid materials or objects by processes involving the application of heat by convection, i.e. heat being conveyed from a heat source to the materials or objects to be dried by a gas or vapour, e.g. air the gas or vapour flowing through the materials or objects to be dried so as to loosen them, e.g. to form a fluidised bed agitating the fluidised bed, e.g. by vibrating or pulsating by pneumatic means, e.g. spouted beds
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Microbiology (AREA)
- Drying Of Solid Materials (AREA)
Abstract
The invention discloses a powder boiling dryer which comprises a boiling tank, a circulating pipe, a dehumidifier, a fan, a heating device, a top plate, a bottom plate, an air distribution disc and an annular air pipe, wherein the boiling tank is a cylindrical tank body, the top plate and the bottom plate are arranged in the boiling tank at intervals from top to bottom, an inner cavity of the boiling tank is divided by the top plate and the bottom plate to form an air outlet cavity, a boiling cavity and an air inlet cavity which are distributed from top to bottom, one end of the circulating pipe is connected with the air outlet cavity, the other end of the circulating pipe is connected with the air distribution disc and the annular air pipe, and the dehumidifier, the fan and the heating device are arranged on the circulating pipe. This technical scheme is used for solving current powder fluidized drying machine and has environmental pollution, drying efficiency low and the extravagant problem of heat.
Description
Technical Field
The invention belongs to the technical field of pharmacy, and particularly relates to a powder boiling dryer.
Background
The boiling dryer is widely applied to the fields of chemical industry, medicine, food processing and the like, and is used for drying materials. The air is heated by the heat exchanger to form hot air, the clean hot air enters the boiling drying machine tool body, wet materials in the drying machine tool body are in a boiling state by the hot air, and the hot air is in wide contact with the materials, so that the heat and mass transfer processes are increased, and the drying can be finished in a short time. In the prior art, the introduced air flow is relatively disordered, when the moisture of the material is relatively high, a boiling state is difficult to form, and the material drying efficiency is relatively low; meanwhile, the wet hot air after the materials are dried in the boiling dryer cannot be recycled due to the fact that the wet hot air contains a large amount of moisture and is usually directly discharged, heat contained in the wet hot air is completely wasted, energy conservation is not facilitated, a small amount of dust is inevitably contained in the discharged hot air, PM2.5 in the air is increased, and the environment is polluted.
Disclosure of Invention
Aiming at the technical problems, the invention provides a powder boiling dryer to solve the problems of environmental pollution, low drying efficiency and heat waste of the existing powder boiling dryer.
The invention provides a powder boiling dryer, which comprises a boiling tank, a circulating pipe, a dehumidifier, a fan, a heating device, a top plate, a bottom plate, an air distribution disc and an annular air pipe, wherein the boiling tank is a cylindrical tank body, the top plate and the bottom plate are arranged in the boiling tank at intervals from top to bottom, an inner cavity of the boiling tank is divided by the top plate and the bottom plate to form an air outlet cavity, a boiling cavity and an air inlet cavity which are arranged from top to bottom, one end of the circulating pipe is connected with the air outlet cavity, the other end of the circulating pipe is connected with the air distribution disc and the annular air pipe, the dehumidifier, the fan and the heating device are arranged on the circulating pipe, the air distribution disc is positioned in the air inlet cavity, a plurality of air outlets are arranged at the central position of the bottom plate, a plurality of first air outlet pipes connected to the air outlets are arranged at the top of the air distribution disc, the annular air pipe encircles set up in the outside in boiling chamber, just the interval is provided with many second air-out pipes on the annular air pipe, second air-out pipe is followed the tangential direction access of boiling pot the boiling chamber, the inner edge position interval of roof is provided with a plurality of vents, the below of vent is provided with the filter rod.
Further, a temperature sensing probe is arranged in the boiling cavity.
Further, the powder boiling dryer further comprises a motor and a stirring shaft, the motor is located at the top of the boiling tank, the top end of the stirring shaft is connected with the motor, the bottom end of the stirring shaft penetrates through the top plate and extends to the top of the bottom plate, and stirring blades are arranged at the bottom end of the stirring shaft.
Furthermore, a discharge pipe is arranged at the bottom of the boiling cavity, and a valve is arranged on the discharge pipe.
Furthermore, the fan is a forward and reverse fan.
Further, the powder boiling dryer further comprises a vibration mechanism, and the vibration mechanism is located above the top plate.
Furthermore, the outer wall of the boiling tank is covered with a heat-insulating layer.
Further, the dehumidifier is a heat pump drying mechanism.
The powder boiling dryer provided by the invention is provided with the circulating pipe, hot air can be recycled after water vapor is removed through the dehumidifier on the circulating pipe, so that the utilization efficiency of heat is effectively improved, the energy consumption is reduced, meanwhile, due to the recycling of the hot air, dust contained in the hot air flows back to the boiling cavity along with the circulating pipe, the material utilization rate is improved, the problem of environmental pollution caused by dust escape is avoided, and the powder boiling dryer is beneficial to energy conservation and environmental protection.
Furthermore, in order to improve the drying efficiency, the powder boiling dryer is provided with an air distribution disc and an annular air pipe, wherein the air distribution disc can play a boiling effect on powder at the central position of the bottom plate so as to roll the powder up and down; meanwhile, a second air pipe is led out of the annular air pipe, and the second air outlet pipe is connected into the boiling cavity along the tangential direction of the boiling tank, so that spiral whirlwind can be formed in the boiling cavity, the air pressure in the middle of the boiling cavity is reduced, powder in the boiling cavity is sucked up, the contact area between the powder and hot air is effectively increased, and the drying efficiency is improved.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
Fig. 1 is a schematic structural view of a powder boiling dryer.
Fig. 2 is a schematic connection diagram of the annular air duct.
Detailed Description
The invention discloses a powder boiling dryer which can reduce dust leakage, effectively disperse materials, improve drying efficiency and realize heat recycling.
The technical solutions of the present invention will be described clearly and completely with reference to the accompanying drawings, and obviously, the description is only a part of the embodiments of the present invention, not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1 and 2, the invention discloses a powder boiling dryer, which comprises a boiling pot 21, a circulating pipe 19, a dehumidifier 20, a fan 18, a heating device 17, a top plate 4, a bottom plate 22, an air distribution disc 14 and an annular air pipe 16, wherein the boiling pot 21 is a cylindrical pot body, the top plate 4 and the bottom plate 22 are arranged in the boiling pot 21 at intervals up and down, an inner cavity of the boiling pot 21 is partitioned by the top plate 4 and the bottom plate 22 to form an air outlet cavity 2, a boiling cavity 6 and an air inlet cavity 10 which are arranged from top to bottom, one end of the circulating pipe 19 is connected with the air outlet cavity 2, the other end of the circulating pipe 19 is connected with the air distribution disc 14 and the annular air pipe 16, the circulating pipe 19 is provided with the fan 20, the fan 18 and the heating device 17, the air distribution disc 14 is located in the air inlet cavity 10, a plurality of air outlets are formed in the center of the bottom plate 22, the top of cloth wind dish 14 is provided with a plurality of being connected to the first play tuber pipe 13 of air outlet, annular tuber pipe 16 encircle set up in the outside of boiling chamber 6, just annular tuber pipe 16 is gone up the interval and is provided with many second play tuber pipes 15, second play tuber pipe 15 is followed the tangential direction of boiling pot 21 inserts boiling chamber 6, the inner edge position interval of roof 4 is provided with a plurality of vents, the below of vent is provided with filter rod 5.
The powder boiling dryer provided by the invention is provided with the circulating pipe 19, hot air can be recycled after water vapor is removed through the dehumidifier 20 on the circulating pipe 19, so that the utilization efficiency of heat is effectively improved, the energy consumption is reduced, meanwhile, due to the recycling of the hot air, dust contained in the hot air flows back to the boiling cavity 6 along with the circulating pipe 19, the material utilization rate is improved, the problem of environmental pollution caused by dust escape is avoided, and the powder boiling dryer is beneficial to energy conservation and environmental protection.
Further, in order to improve the drying efficiency, the powder boiling dryer is provided with an air distribution disc 14 and an annular air pipe 16, wherein the air distribution disc 14 can play a boiling effect on powder at the central position of the bottom plate 22, so that the powder rolls up and down; simultaneously, annular tuber pipe 16 draws forth the second tuber pipe, second play tuber pipe 15 is followed the tangential direction of boiling pot 21 inserts boiling chamber 6 does benefit to and forms the heliciform whirlwind in boiling chamber 6 to reduce the atmospheric pressure at boiling chamber 6 middle part, do benefit to and inhale the powder in boiling chamber 6, and then effectively improve powder and hot-blast area of contact, improve drying efficiency.
A temperature sensing probe 7 is arranged in the boiling cavity 6.
The temperature in the boiling chamber 6 is detected by the temperature sensing probe 7, and the heating device 17 is controlled to be turned on and off.
The powder boiling dryer further comprises a motor 1 and a stirring shaft 11, wherein the motor 1 is positioned at the top of the boiling tank 21, the top end of the stirring shaft 11 is connected with the motor 1, the bottom end of the stirring shaft 11 penetrates through the top plate 4 and extends to the top of the bottom plate 22, and stirring blades 12 are arranged at the bottom end of the stirring shaft 11.
The stirring blade 12 drives the powder in the boiling chamber 6 to roll, and preferably, the direction of the airflow caused by the rotation of the stirring blade 12 is consistent with the direction of the airflow caused by the second air pipe, which is beneficial to the formation of the internal spiral cyclone.
A discharge pipe 9 is arranged at the bottom of the boiling cavity 6, and a valve 8 is arranged on the discharge pipe 9.
After the drying is finished, the discharging pipe 9 can be used for discharging, specifically, the discharging pipe 9 is externally connected with a bag-type dust collector to avoid the leakage of dust.
The fan 18 is a counter-rotating fan.
During the drying operation, the fan 18 rotates in the forward direction, and when the filter rod 5 needs to be cleaned, the fan 18 can rotate in the reverse direction, so as to perform the back washing operation on the filter rod 5.
The powder boiling dryer also comprises a vibration mechanism 3, and the vibration mechanism 3 is positioned above the top plate 4.
The vibration mechanism 3 drives the filter rod 5 to vibrate, so that the filter rod 5 is prevented from being blocked.
The outer wall of the boiling tank 21 is covered with a heat insulation layer to reduce heat loss.
The dehumidifier 20 is a heat pump drying mechanism.
The foregoing is a further detailed description of the invention in connection with specific preferred embodiments and it is not intended to limit the invention to the specific embodiments described. For those skilled in the art to which the invention pertains, several simple deductions or substitutions can be made without departing from the spirit of the invention, and all shall be considered as belonging to the protection scope of the invention.
Claims (8)
1. A powder boiling dryer is characterized by comprising a boiling tank, a circulating pipe, a dehumidifier, a fan, a heating device, a top plate, a bottom plate, an air distribution disc and an annular air pipe, wherein the boiling tank is a cylindrical tank body, the top plate and the bottom plate are arranged in the boiling tank at intervals from top to bottom, an air outlet cavity, a boiling cavity and an air inlet cavity which are distributed from top to bottom are formed by separating an inner cavity of the boiling tank through the top plate and the bottom plate, one end of the circulating pipe is connected with the air outlet cavity, the other end of the circulating pipe is connected with the air distribution disc and the annular air pipe, the dehumidifier, the fan and the heating device are arranged on the circulating pipe, the air distribution disc is positioned in the air inlet cavity, a plurality of air outlets are formed in the center of the bottom plate, and a plurality of first air outlet pipes connected to the air outlets are arranged at the top of the air distribution disc, the annular air pipe encircles set up in the outside in boiling chamber, just the interval is provided with many second air-out pipes on the annular air pipe, second air-out pipe is followed the tangential direction access of boiling pot the boiling chamber, the inner edge position interval of roof is provided with a plurality of vents, the below of vent is provided with the filter rod.
2. A powder boiling dryer as claimed in claim 1, wherein a temperature sensing probe is provided in the boiling chamber.
3. The powder boiling dryer of claim 1, further comprising a motor and a stirring shaft, wherein the motor is located at the top of the boiling tank, the top end of the stirring shaft is connected with the motor, the bottom end of the stirring shaft penetrates through the top plate and extends to the top of the bottom plate, and stirring blades are arranged at the bottom end of the stirring shaft.
4. A powder boiling dryer in accordance with claim 1 wherein the bottom of the boiling chamber is provided with a discharge pipe, and the discharge pipe is provided with a valve.
5. The powder boiling dryer of claim 1, wherein the fan is a counter-rotating fan.
6. The powder boiling dryer of claim 1, further comprising a vibration mechanism, wherein the vibration mechanism is located above the top plate.
7. A powder boiling dryer according to claim 1 wherein the outer wall of the boiling tank is covered with an insulating layer.
8. A powder boiling dryer according to claim 1 wherein the dehumidifier is a heat pump drying mechanism.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210317645.2A CN114636283A (en) | 2022-05-10 | 2022-05-10 | Powder fluidized drying machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210317645.2A CN114636283A (en) | 2022-05-10 | 2022-05-10 | Powder fluidized drying machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN114636283A true CN114636283A (en) | 2022-06-17 |
Family
ID=81951432
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210317645.2A Pending CN114636283A (en) | 2022-05-10 | 2022-05-10 | Powder fluidized drying machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114636283A (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2952642A1 (en) * | 1979-12-28 | 1981-07-02 | Deutsche Kommunal-Anlagen Miete GmbH, 8000 München | Dry removal of harmful gases from refuse treatment - by hot reaction and filtering in granular filter bed |
| US5867921A (en) * | 1994-11-21 | 1999-02-09 | Powdering Japan K.K. | Fluidized bed apparatus for drying or cooling of powder and a process for drying or cooling powder with the same |
| CN102935428A (en) * | 2012-11-08 | 2013-02-20 | 品孚罗特过滤设备（北京）有限公司 | Device for separating solid particles and application thereof |
| CN108554038A (en) * | 2018-05-03 | 2018-09-21 | 佛山市三水万瑞达环保科技有限公司 | A kind of self-cleaning filter device |
| CN112304031A (en) * | 2020-11-12 | 2021-02-02 | 哈尔滨工业大学 | Cyclone fluidized bed dryer for rapidly drying large-particle materials |
| CN213873426U (en) * | 2020-10-29 | 2021-08-03 | 河南立诺制药有限公司 | Closed-circuit boiling dryer |
-
2022
- 2022-05-10 CN CN202210317645.2A patent/CN114636283A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2952642A1 (en) * | 1979-12-28 | 1981-07-02 | Deutsche Kommunal-Anlagen Miete GmbH, 8000 München | Dry removal of harmful gases from refuse treatment - by hot reaction and filtering in granular filter bed |
| US5867921A (en) * | 1994-11-21 | 1999-02-09 | Powdering Japan K.K. | Fluidized bed apparatus for drying or cooling of powder and a process for drying or cooling powder with the same |
| CN102935428A (en) * | 2012-11-08 | 2013-02-20 | 品孚罗特过滤设备（北京）有限公司 | Device for separating solid particles and application thereof |
| CN108554038A (en) * | 2018-05-03 | 2018-09-21 | 佛山市三水万瑞达环保科技有限公司 | A kind of self-cleaning filter device |
| CN213873426U (en) * | 2020-10-29 | 2021-08-03 | 河南立诺制药有限公司 | Closed-circuit boiling dryer |
| CN112304031A (en) * | 2020-11-12 | 2021-02-02 | 哈尔滨工业大学 | Cyclone fluidized bed dryer for rapidly drying large-particle materials |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
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Application publication date: 20220617 |