CN2280268Y - Air jet type fluidized bed drying apparatus - Google Patents
Air jet type fluidized bed drying apparatus Download PDFInfo
- Publication number
- CN2280268Y CN2280268Y CN 96234049 CN96234049U CN2280268Y CN 2280268 Y CN2280268 Y CN 2280268Y CN 96234049 CN96234049 CN 96234049 CN 96234049 U CN96234049 U CN 96234049U CN 2280268 Y CN2280268 Y CN 2280268Y
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- fluidising chamber
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Abstract
The utility model relates to a drier used for drying powdery materials, granular materials, flaky materials and pasty materials in chemical industries, food and fodder industries, farm and sideline product process industries and other fields. The utility model is provided with two drying chambers with different working principles. One drying chamber is a cylinder-shaped forced air current fluidization chamber (8), and the other drying chamber is a rectangular fluidization chamber (9) and an air current spray pipe (1) with a cross section being a long and narrow rectangle (or composed of a row of circular pipes). The utility model has the advantages of high heat transfer coefficient, high drying speed, high heat efficiency, stable operation, simple structure, easy fabrication and low cost. The utility model with strong adaptability to materials not only can dry granular materials with wide granularity distribution and heat sensitive materials, but also can dry a plurality of different materials with one drier.
Description
The utility model relates to a kind of drying equipment that is used for chemical industry, food and feed, the dry powder of agricultural byproducts processing and other field, graininess, sheet and plaster material, particularly a kind of air flow jetting type fluidized bed dryer.
The existing equipment that is used for dry chemical industry, food and feed, agricultural byproducts processing and other field powder, graininess, sheet material mainly is rotary-drum drier, pneumatic conveyer dryer and fluidized bed dryer.The rotary-drum drier heat transfer coefficient is little, and the thermal efficiency is low; Pneumatic conveyer dryer and fluidized bed dryer, poor to the material adaptive capacity.Pneumatic dryer generally only is used for the particle drying of powder material uniformly; Fluidized bed dryer is mainly used in the drying of graininess or sheet material, and it is had relatively high expectations to the size distribution of material, occurs channel or turbulent phenomenon in the work sometimes and heat transfer coefficient is sharply descended.
The purpose of this utility model is: the advantage that a kind of existing heat transfer coefficient is big, the thermal efficiency is high is provided, overcome the air flow jetting type fluidized bed dryer of aforementioned drier again to the shortcoming of material adaptive capacity difference, make it not only can the very uneven material of dried particles size, but also can the lower paste material of dry viscosity.
The utility model be the method by the fluidising chamber that two operation principles of design are different on a drier strengthen its adaptive capacity to material, improve the thermal efficiency, described drier has two hothouses, one is that the cylindrical shape air-flow is forced fluidising chamber (8), and another is that rectangle fluidising chamber (9) and a cross section are the narrow and long rectangular air-flow playpipe (1) of (or row's pipe is formed).It is the cylinder or the elliptical cylinder of a level or the top opening that is in tilted layout that described cylindrical shape air-flow is forced fluidising chamber (8), and heating jacket is equipped with in its underpart, and disposes charging aperture and discharging opening above it.Described rectangle fluidising chamber (9) is positioned at the cylindrical shape air-flow to be forced fluidising chamber (8) top and directly forces fluidising chamber (8) to communicate with the cylindrical shape air-flow by a rectangular channel, and dispose discharging opening thereon, the length that described cross section is the air-flow playpipe (1) of narrow and long rectangular (or a row pipe form) is forced the interior empty equal in length of fluidising chamber (8) with the cylindrical shape air-flow and along its axis direction layout, air-flow playpipe (1) vertically downward or be tilted to down, tangentially force fluidising chamber (8) to communicate with the cylindrical shape air-flow, its gas outlet is positioned at the cylindrical shape air-flow forces fluidising chamber (8).
Specifically be constructed as follows: (8) force fluidising chamber for level or the cylindrical shell shape air-flow that is in tilted layout, its cross section is the cylindrical shape or the oval cylinder of upper opening, it sealed at both ends, forcing fluidising chamber (8) to go up device at the cylindrical shape air-flow has charging aperture (5) and this chamber discharging opening (11); The cylindrical shape air-flow forces the outside of the Lower Half of fluidising chamber (8) that heating jacket (12) is housed, and the two ends of heating jacket (12) are respectively chuck heat medium import (13) and chuck heat medium outlet (7).The air-flow playpipe (1) that the cross section is narrow and long rectangular (or a row pipe form) (also tiltable is downward) vertically downward tangentially enters the cylindrical shape air-flow and forces fluidising chamber (8) and communicate with it, air-flow playpipe (1) forces the generatrix direction of fluidising chamber (8) to be arranged and isometric with the interior sky of its axis direction along the cylindrical shape air-flow, and the exit width of the air-flow playpipe (1) of narrow and long rectangular can be by one group of adjusting nut (3) and one group of retainer spring (2) adjusting.Air-flow playpipe (1) is connected with the thermal current source by an air inlet (6).(8) top is rectangle fluidising chamber (9), link to each other by a rectangular channel between them, left end in rectangle fluidising chamber (9) has this chamber discharging opening (10), in the top of rectangle fluidising chamber (9) gas outlet (4) is arranged, and it links to each other with " picogram dragon " by pipeline.
Compare with existing drying equipment, the utlity model has following advantage and effect:
1. heat transfer coefficient height, rate of drying is fast, and therefore thermal efficiency height is particularly suitable for dry heat sensitive material (as fish meal, vinasse etc.).
2. working stability does not have air distribution plate because of below the rectangle fluidising chamber, so channeling can not occur.
3. the adaptive capacity to material is strong, can the very wide particulate material of dry size distribution, and also can be with the dry several different materials of a machine.
4. simple in structure, there is not movement parts, easy to manufacture, manufacturing cost is lower.
Fig. 1 is used for the front view of the air flow jetting type fluidized bed dryer of dried particles material or sheet material for the utility model, (4) are the gas outlet among the figure, (7) be the outlet of chuck heat medium, (8) force fluidising chamber for the cylindrical shape air-flow, (9) be rectangle fluidising chamber, (10) force fluidising chamber's discharging opening, (11) rectangle fluidising chamber discharging opening for the cylindrical shape air-flow, (12) be heating jacket, (13) are the import of chuck heat medium.
Fig. 2 is the left pseudosection of Fig. 1.(4) are the gas outlet among the figure, and (5) are charging aperture, and (6) are the thermal current air inlet, and (8) force fluidising chamber for the cylindrical shape air-flow, and (9) are rectangle fluidising chamber.
Fig. 3 is air-flow playpipe (a 1) structural representation, and (1) is the air-flow playpipe among the figure, and (2) are retainer spring, and (3) are adjusting nut.
When using drier dried particles shape illustrated in figures 1 and 2 or sheet material, material forces the charging aperture (5) of fluidising chamber (8) left end to enter cylindrical shape air-flow pressure fluidising chamber via being positioned at the cylindrical shape air-flow, and the high temperature gas flow from the thermal current source enters air-flow playpipe (1) by air inlet (6) simultaneously.Force the inwall of fluidising chamber by the tangential direction high velocity jet to entering the cylindrical shape air-flow then, the material that promotes in it is for the helical movement, the cylindrical shape air-flow is forced the material in the fluidising chamber to conduct heat by airflow convection simultaneously and is heated and drying by bottom conduction heat transfer two and heat transfer mechanism, discharge via discharging opening (11) continuously, the less material of another part particle is brought into rectangle fluidising chamber (9) by ascending air, discharged by discharging opening (10) behind the heat drying by the thermal current convection heat transfer' heat-transfer by convection, the very little material of particle is dry and bring " picogram dragon " into and separate through gas outlet (4) by ascending air.
Example structure schematic diagram when Fig. 4, Fig. 5, Fig. 6 are dry split material of drier described in the utility model or paste material.Material enters the cylindrical shape air-flow equably via charging aperture (5) and forces to be placed with natural instincts particle (grains of sand about diameter 5mm or iron sand) in the fluidising chamber (8) in (8).Inert particle is made circular motion (because of its diameter and proportion are bigger, can not taken away by ascending air) along the inwall of (8) under the action of high-speed airflow by air-flow playpipe (1) ejection.When inert particle is made circular motion, impact material and make its dispersion, powder material is then brought into the further drying of rectangle fluidising chamber (9) and is separated discharge by discharging opening (10) discharge or by air-flow after gas outlet (4) bring " picogram dragon " into by ascending air.Plaster material is heated exsiccation simultaneously by air-flow and bottom surface in the cylindrical shape air-flow is forced fluidising chamber, brought into the further drying of rectangle fluidising chamber after discharged or brought into " picogram dragon " by air-flow via gas outlet (4) and separate by discharging opening (10) by inert particle impact comminution (principle of similar ball mill) back by ascending air, the rectangle fluidising chamber discharging opening (11) of this dry gas is generally closed in the course of the work.Thick dashed line arrow among Fig. 1, Fig. 2, Fig. 4, Fig. 5 is represented the flow direction of material in dry run, and the heavy line arrow is represented direct-fired air current flow direction, and the fine line arrow is represented chuck heat medium air current flow direction.Fig. 6 represents is air-flow playpipe (1) structural representation when being in tilted layout.
Claims (4)
1. air flow jetting type fluidized bed dryer that is used for chemical industry, food and feed, the dry powder of agricultural byproducts processing and other field, graininess, sheet and plaster material, it is characterized in that: described drier has two hothouses, one is that the cylindrical shape air-flow is forced fluidising chamber (8), and another is that rectangle fluidising chamber (9) and a cross section are the narrow and long rectangular air-flow playpipe (1) of (or row's pipe is formed).
2. drier as claimed in claim 1, it is characterized in that: it is the cylinder or the elliptical cylinder of a level or the top opening that is in tilted layout that described cylindrical shape air-flow is forced fluidising chamber (8), heating jacket is equipped with in its underpart, and disposes charging aperture and discharging opening above it.
3. drier as claimed in claim 1, it is characterized in that: described rectangle fluidising chamber (9) is positioned at the cylindrical shape air-flow to be forced fluidising chamber (8) top and directly forces fluidising chamber (8) to communicate with the cylindrical shape air-flow by a rectangular channel, and disposes discharging opening thereon.
4. drier as claimed in claim 1, it is characterized in that: the length that described cross section is the air-flow playpipe (1) of narrow and long rectangular (or a row pipe form) is forced the interior empty equal in length of fluidising chamber (8) with the cylindrical shape air-flow and along its axis direction layout, air-flow playpipe (1) vertically downward or be tilted to down, tangentially force fluidising chamber (8) to communicate with the cylindrical shape air-flow, its gas outlet is positioned at the cylindrical shape air-flow forces fluidising chamber (8).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 96234049 CN2280268Y (en) | 1996-01-10 | 1996-01-10 | Air jet type fluidized bed drying apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 96234049 CN2280268Y (en) | 1996-01-10 | 1996-01-10 | Air jet type fluidized bed drying apparatus |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2280268Y true CN2280268Y (en) | 1998-04-29 |
Family
ID=33910551
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 96234049 Expired - Fee Related CN2280268Y (en) | 1996-01-10 | 1996-01-10 | Air jet type fluidized bed drying apparatus |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2280268Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106766860A (en) * | 2017-02-20 | 2017-05-31 | 中国烟草总公司郑州烟草研究院 | A kind of pneumatic conveying dryer discharge hole structure improved method and its discharge hole structure based on brachistochrone |
| CN110530136A (en) * | 2019-10-02 | 2019-12-03 | 祝磊 | The air drier of the cereal such as rice, vegetable seed |
| CN114018025A (en) * | 2022-01-06 | 2022-02-08 | 临朐恒辉新材料有限公司 | A drying device for aluminium hydroxide miropowder |
-
1996
- 1996-01-10 CN CN 96234049 patent/CN2280268Y/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106766860A (en) * | 2017-02-20 | 2017-05-31 | 中国烟草总公司郑州烟草研究院 | A kind of pneumatic conveying dryer discharge hole structure improved method and its discharge hole structure based on brachistochrone |
| CN106766860B (en) * | 2017-02-20 | 2023-02-24 | 中国烟草总公司郑州烟草研究院 | Method for improving discharge port structure of airflow drying equipment based on steepest descent line and discharge port structure thereof |
| CN110530136A (en) * | 2019-10-02 | 2019-12-03 | 祝磊 | The air drier of the cereal such as rice, vegetable seed |
| CN114018025A (en) * | 2022-01-06 | 2022-02-08 | 临朐恒辉新材料有限公司 | A drying device for aluminium hydroxide miropowder |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |