CN203609668U - Improved structure for fluidized bed bottom-spraying device - Google Patents
Improved structure for fluidized bed bottom-spraying device Download PDFInfo
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- CN203609668U CN203609668U CN201320828402.1U CN201320828402U CN203609668U CN 203609668 U CN203609668 U CN 203609668U CN 201320828402 U CN201320828402 U CN 201320828402U CN 203609668 U CN203609668 U CN 203609668U
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- push rod
- barrel
- airflow
- guide shell
- distribution board
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Abstract
The utility model discloses an improved structure for a fluidized bed bottom-spraying device. The improved structure comprises a bottom-spraying atomization system, a diffusion barrel, a flow guide barrel and an airflow distribution plate, wherein the nozzle of the bottom-spraying atomization system is formed in the bottom of the diffusion barrel, and penetrates through the airflow distribution plate and stretches into the flow guide barrel; the central axis of the nozzle of the bottom-spraying atomization system, the central axis of the flow guide barrel and the central axis of the airflow distribution plate are mutually superposed; the airflow distribution plate comprises a central area and a peripheral area which take the barrel wall of the flow guide barrel as a boundary and are provided with sieve holes respectively; the density of the sieve holes in the central area is greater than that of the sieve holes in the peripheral area for sealing; the airflow distribution plate is fixedly arranged at the bottom of the diffusion barrel; the outer side of the flow guide barrel is slidably located on the inner wall of the diffusion barrel by at least one fixed plate; a lifting device is additionally arranged, and capable of pushing the flow guide barrel to life by the fixed plate. The improved structure disclosed by the utility model is capable of realizing an adjustment on a distance between the airflow distribution plate and the bottom of the flow guide barrel according to material needs, thus ensuring the smooth flowing of materials into the flow guide barrel from the outside of the flow guide barrel.
Description
Technical field
This utility model relates to spray apparatus at the bottom of a kind of fluid bed, specifically relates to the structure-improved of spray apparatus at the bottom of a kind of fluid bed.
Background technology
Fluidized bed coating technique is used in pharmaceutical preparation production more and more, and end spray fluid bed is mainly used in granular preparation (granule, piller and crystallization etc.), is below referred to as the coating of granule.
The structure of the end spray apparatus of fluid bed generally includes end atomization system, be the diffusion barrel of hollow back taper tubbiness, be located at the cylindric guide shell of diffusion barrel center and the airflow-distribution board with the bottom interval setpoint distance of guide shell.End atomization system is positioned at the center of airflow-distribution board and is installed on diffusion barrel bottom in the mode of upward spraying.Airflow-distribution board central area is just to guide shell bottom, is placed with many regularly arrangedly compared with big hole, and the resistance that gas passes through is less, and air-flow is larger, can drive granule to move upward fast.The periphery of the central area of distribution grid is placed with regularly arranged compared with small sircle hole, and the resistance that gas passes through is larger, and air-flow is less, only maintains granule and is suspended in above distribution grid, and a slice drainage screen is arranged at diffusion barrel top, stops that granule escapes with air flow.Granule in diffusion barrel bottom center, enters after inverted cone diffusion barrel because gas pressure is less through upwards rapid movement of guide shell with high velocity air, just scatters to surrounding, and then gravitate, contrary low speed flow falls in the diffusion barrel in guide shell outside.These granules that fall be subject to flowing through upper thrust of the peripheral little gas flow hole of distribution grid, in suspended state.Because central area air velocity is larger, form negative pressure, attract peripheral granule to flow to central authorities.Lower floor's granule attracted to central area, and upper strata granule constantly moves down and fills up, thereby completes once circulation.But, in the structure of the end spray apparatus of existing fluid bed, the distance of airflow-distribution board and guide shell bottom is fixed, cannot be according to the distance between adjustments of gas distribution grid and guide shell bottom that needs of different material, guarantee that material can outflow in guide shell from guide shell swimmingly, form reciprocal flow regime, and the junction of airflow-distribution board and diffusion barrel easily forms fluidisation dead angle.
Summary of the invention
In order to solve the problems of the technologies described above, the utility model proposes the structure-improved of spray apparatus at the bottom of a kind of fluid bed, can realize according to material and need to regulate the distance between airflow-distribution board and guide shell bottom, guarantee that material can outflow in guide shell from guide shell swimmingly, and the junction of airflow-distribution board and diffusion barrel, without fluidisation dead angle, makes fluidized circulation more smooth and easy.
The technical solution of the utility model is achieved in that
The structure-improved of spray apparatus at the bottom of a kind of fluid bed, comprise end atomization system, be hollow back taper tubbiness diffusion barrel, be located at the hollow cylindrical guide shell at described diffusion barrel middle part and the airflow-distribution board with the bottom interval setpoint distance of described guide shell, the nozzle of atomization system of the described end is located at the bottom of described diffusion barrel in the mode of upward spraying, and extend in described guide shell through described airflow-distribution board, the central axis of the nozzle of atomization system of the described end, the central axis of described guide shell and the central axis of described airflow-distribution board overlap, described airflow-distribution board comprises that barrel take described guide shell is as being respectively equipped with central area and the external zones of sieve aperture, on described central area, sieve aperture density is greater than the sieve aperture sealing on described external zones, described airflow-distribution board is fixedly arranged on the bottom of described diffusion barrel, slided and be positioned on the inwall of described diffusion barrel by least one fixing head in described guide shell outside, separately be provided with lowering or hoisting gear, described lowering or hoisting gear can promote described guide shell lifting by described fixing head.
As further improvement of the utility model, the bottom of described diffusion barrel is fixedly connected with a chimney fan, described lowering or hoisting gear comprises the first push rod, the second push rod and the 3rd push rod, one end of described the first push rod is fixedly connected with described fixing head, one end pivot joint of the other end of described the first push rod and described the second push rod, one end pivot joint of the other end of described the second push rod and described the 3rd push rod, the other end of described the 3rd push rod is fixed on described chimney fan by nut, described the first push rod and described the second push rod and described the second push rod and described the 3rd push rod are set angle.
As further improvement of the utility model, it is domatic that the intersection of described airflow-distribution board and described diffusion barrel is provided with arc.
The beneficial effects of the utility model are: this utility model provides the structure-improved of spray apparatus at the bottom of a kind of fluid bed, by being slidably connected of lowering or hoisting gear and fixing head and diffusion barrel, can realize the object that regulates the distance between guide shell and airflow-distribution board according to material actual needs.Preferably, the bottom of diffusion barrel is fixedly connected with a chimney fan, lowering or hoisting gear comprises the first push rod, the second push rod and the 3rd push rod, one end of the first push rod is fixedly connected with fixing head, one end pivot joint of the other end of the first push rod and the second push rod, one end pivot joint of the other end of the second push rod and the 3rd push rod, the other end of the 3rd push rod is fixed on chimney fan by nut, and the first push rod and the second push rod and the second push rod and the 3rd push rod are set angle.Like this, in the time need to regulating the distance between guide shell and airflow-distribution board according to material, screw in or screw out nut, one end of the 3rd push rod can be stretched out and indentation certain length by corresponding chimney fan, owing to being pivot joint between the first push rod and the second push rod and the second push rod and the 3rd push rod, therefore, the 3rd push rod can drive the second push rod and the first push rod successively, and then drive fixing head relative diffusion cylinder slip certain distance, can reach the lifting that promotes guide shell by lowering or hoisting gear, thereby reach the object that regulates the distance between guide shell and airflow-distribution board.Preferably, to be provided with arc domatic for the intersection of airflow-distribution board and diffusion barrel.Like this, in the cyclic process of air-flow, material is not easy to accumulate in the intersection of airflow-distribution board and diffusion barrel, avoids forming fluidisation dead angle.
Accompanying drawing explanation
Fig. 1 is this utility model structural representation.
By reference to the accompanying drawings, make the following instructions:
1---end atomization system 11---nozzle
2---diffusion barrel 3---guide shell
4---airflow-distribution board 41---central area
42---external zones 5---fixing head
6---lowering or hoisting gear 61---first push rod
62---second push rod 63---the 3rd push rod
7---chimney fan 8---nut
9---arc is domatic
The specific embodiment
As shown in Figure 1, in figure, arrow is airflow direction, the structure-improved of spray apparatus at the bottom of a kind of fluid bed, comprise end atomization system 1, be hollow back taper tubbiness diffusion barrel 2, be located at the hollow cylindrical guide shell 3 at described diffusion barrel middle part and the airflow-distribution board 4 with the bottom interval setpoint distance of described guide shell, the nozzle 11 of atomization system of the described end is located at the bottom of described diffusion barrel in the mode of upward spraying, and extend in described guide shell through described airflow-distribution board, the central axis of the nozzle of atomization system of the described end, the central axis of described guide shell and the central axis of described airflow-distribution board overlap, described airflow-distribution board comprises that barrel take described guide shell is as being respectively equipped with central area 41 and the external zones 42 of sieve aperture, on described central area, sieve aperture density is greater than the sieve aperture sealing on described external zones, described airflow-distribution board is fixedly arranged on the bottom of described diffusion barrel, slided and be positioned on the inwall of described diffusion barrel by least one fixing head 5 in described guide shell outside, separately be provided with lowering or hoisting gear 6, described lowering or hoisting gear can promote described guide shell lifting by described fixing head.By being slidably connected of lowering or hoisting gear and fixing head and diffusion barrel, can realize the object that regulates the distance between guide shell and airflow-distribution board according to material actual needs like this.
Preferably, the bottom of described diffusion barrel is fixedly connected with a chimney fan 7, described lowering or hoisting gear comprises the first push rod 61, the second push rod 62 and the 3rd push rod 63, one end of described the first push rod is fixedly connected with described fixing head, one end pivot joint of the other end of described the first push rod and described the second push rod, one end pivot joint of the other end of described the second push rod and described the 3rd push rod, the other end of described the 3rd push rod is fixed on described chimney fan by nut 8, and described the first push rod and described the second push rod and described the second push rod and described the 3rd push rod are set angle.Like this, in the time need to regulating the distance between guide shell and airflow-distribution board according to material, screw in or screw out nut, one end of the 3rd push rod can be stretched out and indentation certain length by corresponding chimney fan, owing to being pivot joint between the first push rod and the second push rod and the second push rod and the 3rd push rod, therefore, the 3rd push rod can drive the second push rod and the first push rod successively, and then drive fixing head relative diffusion cylinder slip certain distance, can reach the lifting that promotes guide shell by lowering or hoisting gear, thereby reach the object that regulates the distance between guide shell and airflow-distribution board.
Preferably, the intersection of described airflow-distribution board and described diffusion barrel is provided with arc domatic 9.Like this, in the cyclic process of air-flow, material is not easy to accumulate in the intersection of airflow-distribution board and diffusion barrel, avoids forming fluidisation dead angle.
At the bottom of this utility model fluid bed, the structure improved operation principle of spray apparatus is as follows:
The central area of airflow-distribution board is just to guide shell bottom, be greater than the sieve aperture density on external zones by sieve aperture density thereon, be that the resistance that passes through of central area gas is less, air-flow is larger, can drive granule to move upward fast, and the resistance that the external zones gas of airflow-distribution board passes through is larger, air-flow is less, therefore, granule in diffusion barrel bottom center district with high velocity air through upwards rapid movement of guide shell, enter after inverted cone diffusion barrel because gas pressure is less, just scatter to surrounding, then gravitate, contrary low speed flow falls in the diffusion barrel in guide shell outside.These granules that fall be subject to flowing through upper thrust of the peripheral sieve aperture air-flow of distribution grid, in suspended state.Because central area air velocity is larger, form negative pressure, attract peripheral granule to flow to central authorities.Lower floor's granule attracted to central area, and upper strata granule constantly moves down and fills up, thereby completes once circulation.In above-mentioned cyclic process, domatic owing to being provided with arc at the intersection of airflow-distribution board and diffusion barrel, therefore, in the cyclic process of air-flow, material is not easy to accumulate in the intersection of airflow-distribution board and diffusion barrel, thereby reaches the object of avoiding forming fluidisation dead angle.In the time need to regulating the distance between guide shell and airflow-distribution board according to material, screw in or screw out nut, one end of the 3rd push rod can be stretched out and indentation certain length by corresponding chimney fan, owing to being pivot joint between the first push rod and the second push rod and the second push rod and the 3rd push rod, therefore, the 3rd push rod can drive the second push rod and the first push rod successively, and then drive fixing head relative diffusion cylinder slip certain distance, can reach the lifting that promotes guide shell by lowering or hoisting gear, thereby reach the object that regulates the distance between guide shell and airflow-distribution board.
Above embodiment is with reference to accompanying drawing, and preferred embodiment of the present utility model is elaborated.Those skilled in the art is by above-described embodiment being carried out to modification or the change on various forms, but do not deviate from the situation of essence of the present utility model, within all dropping on protection domain of the present utility model.
Claims (3)
1. the structure-improved of spray apparatus at the bottom of a fluid bed, comprise end atomization system (1), be hollow back taper tubbiness diffusion barrel (2), be located at the hollow cylindrical guide shell (3) at described diffusion barrel middle part and the airflow-distribution board (4) with the bottom interval setpoint distance of described guide shell, the nozzle (11) of atomization system of the described end is located at the bottom of described diffusion barrel in the mode of upward spraying, and extend in described guide shell through described airflow-distribution board, the central axis of the nozzle of atomization system of the described end, the central axis of described guide shell and the central axis of described airflow-distribution board overlap, described airflow-distribution board comprises that barrel take described guide shell is as being respectively equipped with central area (41) and the external zones (42) of sieve aperture, on described central area, sieve aperture density is greater than the sieve aperture sealing on described external zones, it is characterized in that: described airflow-distribution board is fixedly arranged on the bottom of described diffusion barrel, slided and be positioned on the inwall of described diffusion barrel by least one fixing head (5) in described guide shell outside, separately be provided with lowering or hoisting gear (6), described lowering or hoisting gear can promote described guide shell lifting by described fixing head.
2. the structure-improved of spray apparatus at the bottom of fluid bed according to claim 1, it is characterized in that: the bottom of described diffusion barrel is fixedly connected with a chimney fan (7), described lowering or hoisting gear comprises the first push rod (61), the second push rod (62) and the 3rd push rod (63), one end of described the first push rod is fixedly connected with described fixing head, one end pivot joint of the other end of described the first push rod and described the second push rod, one end pivot joint of the other end of described the second push rod and described the 3rd push rod, the other end of described the 3rd push rod is fixed on described chimney fan by nut (8), described the first push rod and described the second push rod and described the second push rod and described the 3rd push rod are set angle.
3. the structure-improved of spray apparatus at the bottom of fluid bed according to claim 1, is characterized in that: the intersection of described airflow-distribution board and described diffusion barrel is provided with arc domatic (9).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320828402.1U CN203609668U (en) | 2013-12-16 | 2013-12-16 | Improved structure for fluidized bed bottom-spraying device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320828402.1U CN203609668U (en) | 2013-12-16 | 2013-12-16 | Improved structure for fluidized bed bottom-spraying device |
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| CN203609668U true CN203609668U (en) | 2014-05-28 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201320828402.1U Expired - Fee Related CN203609668U (en) | 2013-12-16 | 2013-12-16 | Improved structure for fluidized bed bottom-spraying device |
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104587892A (en) * | 2014-12-15 | 2015-05-06 | 深圳市信宜特科技有限公司 | Bottom spraying and air intake control structure of fluidized bed |
| CN104607103A (en) * | 2014-12-15 | 2015-05-13 | 深圳市信宜特科技有限公司 | Structure for realization of online replacement of fluidized bed bottom-spraying spray gun |
| CN105986247A (en) * | 2015-02-11 | 2016-10-05 | 宁波晨鑫维克工业科技有限公司 | Fluidized bed device for coating film on surface of diamond, method and product prepared through method |
| CN106309134A (en) * | 2016-08-31 | 2017-01-11 | 上海涵欧制药设备有限公司 | Adjustable fluidized bed coating cylinder structure |
| CN107261986A (en) * | 2017-07-28 | 2017-10-20 | 上海涵欧制药设备有限公司 | A kind of fluid bed vertical discharging apparatus |
| CN111228103A (en) * | 2020-01-14 | 2020-06-05 | 上海理工大学 | Hand skin care instrument based on fluidized bed principle |
| CN112722600A (en) * | 2020-12-18 | 2021-04-30 | 宜春万申制药机械有限公司 | Guide cylinder lifting device in multifunctional fluidized bed bottom spraying coating material barrel |
| CN112827428A (en) * | 2020-12-31 | 2021-05-25 | 宜春万申制药机械有限公司 | Bottom jet fluidized bed guide cylinder device |
| CN115363955A (en) * | 2022-10-20 | 2022-11-22 | 创志科技(江苏)股份有限公司 | Fluidized bed coating pan device with multiple Uster column bottom spraying |
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2013
- 2013-12-16 CN CN201320828402.1U patent/CN203609668U/en not_active Expired - Fee Related
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104587892A (en) * | 2014-12-15 | 2015-05-06 | 深圳市信宜特科技有限公司 | Bottom spraying and air intake control structure of fluidized bed |
| CN104607103A (en) * | 2014-12-15 | 2015-05-13 | 深圳市信宜特科技有限公司 | Structure for realization of online replacement of fluidized bed bottom-spraying spray gun |
| CN105986247A (en) * | 2015-02-11 | 2016-10-05 | 宁波晨鑫维克工业科技有限公司 | Fluidized bed device for coating film on surface of diamond, method and product prepared through method |
| CN105986247B (en) * | 2015-02-11 | 2019-06-07 | 宁波晨鑫维克工业科技有限公司 | The fluidized bed plant and method of a kind of diamond surface plated film and the product prepared using this method |
| CN106309134A (en) * | 2016-08-31 | 2017-01-11 | 上海涵欧制药设备有限公司 | Adjustable fluidized bed coating cylinder structure |
| CN107261986A (en) * | 2017-07-28 | 2017-10-20 | 上海涵欧制药设备有限公司 | A kind of fluid bed vertical discharging apparatus |
| CN107261986B (en) * | 2017-07-28 | 2023-05-16 | 上海涵欧制药设备有限公司 | Vertical discharging device of fluidized bed |
| CN111228103A (en) * | 2020-01-14 | 2020-06-05 | 上海理工大学 | Hand skin care instrument based on fluidized bed principle |
| CN112722600A (en) * | 2020-12-18 | 2021-04-30 | 宜春万申制药机械有限公司 | Guide cylinder lifting device in multifunctional fluidized bed bottom spraying coating material barrel |
| CN112827428A (en) * | 2020-12-31 | 2021-05-25 | 宜春万申制药机械有限公司 | Bottom jet fluidized bed guide cylinder device |
| CN115363955A (en) * | 2022-10-20 | 2022-11-22 | 创志科技(江苏)股份有限公司 | Fluidized bed coating pan device with multiple Uster column bottom spraying |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140528 Termination date: 20171216 |
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| CF01 | Termination of patent right due to non-payment of annual fee |