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WO2021073436A1 - Lit fluidisé de distribution d'air tourbillonnant - Google Patents

Lit fluidisé de distribution d'air tourbillonnant Download PDF

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Publication number
WO2021073436A1
WO2021073436A1 PCT/CN2020/119359 CN2020119359W WO2021073436A1 WO 2021073436 A1 WO2021073436 A1 WO 2021073436A1 CN 2020119359 W CN2020119359 W CN 2020119359W WO 2021073436 A1 WO2021073436 A1 WO 2021073436A1
Authority
WO
WIPO (PCT)
Prior art keywords
air
horizontal portion
plate
air distribution
horizontal
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
PCT/CN2020/119359
Other languages
English (en)
Chinese (zh)
Inventor
熊洪峰
夏国民
刘振峰
杨明
伍振峰
杨昌智
金志江
周国发
王学成
臧振中
邱选兵
吴永忠
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Yichun Wanshen Pharmaceutical Machinery Co Ltd Solid Preparation Manufacturing Equipment Industrial Design Center
Original Assignee
Yichun Wanshen Pharmaceutical Machinery Co Ltd Solid Preparation Manufacturing Equipment Industrial Design Center
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Yichun Wanshen Pharmaceutical Machinery Co Ltd Solid Preparation Manufacturing Equipment Industrial Design Center filed Critical Yichun Wanshen Pharmaceutical Machinery Co Ltd Solid Preparation Manufacturing Equipment Industrial Design Center
Publication of WO2021073436A1 publication Critical patent/WO2021073436A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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Classifications

    • 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
    • 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
    • F26B21/004—Nozzle assemblies; Air knives; Air distributors; Blow boxes

Definitions

  • the invention relates to the technical field of pharmaceutical equipment, in particular to a cyclonic flow splitting fluidized bed.
  • the fluidized bed for pharmaceuticals usually includes a bottom barrel and an upper barrel.
  • the upper barrel is equipped with a cloth bag filter.
  • the top of the upper barrel is provided with an air outlet, and one side of the bottom barrel is provided with an air inlet.
  • It is equipped with a wind-passing plate, which is an indispensable main functional structural part of the fluidized bed. It is mainly used to prevent the falling of the material and exchange moisture with the hot air, so that the material can fully contact the air and achieve a drying effect.
  • the existing wind-passing panels are mainly realized by superimposing straight holes and matting nets, or superimposing perforated oblique mesh panels and matting nets.
  • the wind-passing panels of the above structures will make materials and hot air unable to Full contact, large wind resistance, high energy loss, materials will flow back into the bottom barrel during drying, bed collapse is prone to occur, and drying and discharging efficiency is low.
  • An object of the present invention is to provide a swirling air-separated fluidized bed to solve the problem that the existing air passing plate can not fully contact the material and the hot air, and to prevent the material from flowing back into the bottom bucket.
  • a swirling air distribution fluidized bed includes a swirling air distribution mechanism.
  • the swirling air distribution mechanism includes a support plate, a fixed plate, and a plurality of air distribution plates.
  • the support plate has a circular structure.
  • the air distribution plates are respectively connected with the support plate and the fixed plate, a plurality of the air distribution plates are distributed in a circle on the outer periphery of the support plate, the fixed plate has a ring structure, the support plate, the fixed plate
  • the plate and all the air distribution plates form a circular structure, the air distribution plate includes a first horizontal portion, an inclined portion, and a second horizontal portion connected in sequence, and the first horizontal portion is parallel to the second horizontal portion
  • the first horizontal part in one of the air distribution plates and the first horizontal part in the other air distribution plate are on the same horizontal plane, wherein The second horizontal part in one of the air distribution plates is on the same horizontal plane as the second horizontal part in the other air distribution plate, and the first horizontal part in one of the air distribution plates There is a gap with the second
  • the swirling air distribution fluidized bed proposed in the present invention, several air distribution plates are distributed in a circle on the outer periphery of the support plate, instead of the traditional way of stacking of mats, hot air can pass through any two adjacent air distribution plates, The gap between the first horizontal part of one of the air distribution plates and the second horizontal part of the other air distribution plate flows in.
  • the air distribution plates of the above structure can effectively control the flow rate and velocity of the outlet air after being combined.
  • the hot air generates a swirling flow, which can evenly distribute the non-directional hot air flow on the plane of the air distribution plate to improve the uniformity and flow effect of the hot air.
  • the swirling flow can make the material and the hot air more fully contact, and improve the drying efficiency.
  • any two adjacent air distribution plates there is a gap between the first horizontal part of one air distribution plate and the second horizontal part of the other air distribution plate.
  • the height difference formed by this gap can effectively prevent The material flows back into the bottom bucket, effectively avoiding the occurrence of bed collapse.
  • cyclone split-air fluidized bed provided by the present invention may also have the following additional technical features:
  • first horizontal portion and the second horizontal portion are both strip-shaped structures with a wide end and a narrow end.
  • first horizontal part with a narrow width is clamped with the support plate, and one end with a wider width of the second horizontal part is connected with the fixing plate.
  • the length of the second horizontal portion is greater than the length of the first horizontal portion
  • the end of the wider end of the second horizontal portion is provided with a first mounting hole
  • the fixing plate is provided with The second mounting hole, the first mounting hole and the second mounting hole are fixedly connected by bolts.
  • the length of the first horizontal portion is greater than the length of the inclined portion, the narrower end of the first horizontal portion, the narrower end of the second horizontal portion, and the inclined portion Surrounded by a gap.
  • the support board includes a first sub-board, a second sub-board, a third sub-board, and a fourth sub-board that are stacked in sequence, the first sub-board, the second sub-board, and the third sub-board.
  • Both the sub-board and the fourth sub-board are of circular structure, the edge of the second sub-board is provided with a plurality of evenly distributed first clamping slots, and the edge of the fourth sub-board is provided with a plurality of evenly distributed In the second slot, the end with the narrow width of the first horizontal portion is locked in the first slot, and the end with the narrow width in the second horizontal portion is locked in the second slot .
  • one surface of the support plate is provided with a cone, and the projection of the apex of the cone on the support plate coincides with the center of the support plate.
  • first horizontal portion, the inclined portion, and the second horizontal portion are integrally formed.
  • the cyclone air-distributed fluidized bed further includes a bottom bucket and an upper bucket body connected to the bottom bucket.
  • the upper bucket body is provided with a bag filter, and the top of the upper bucket body is provided with exhaust air.
  • An air inlet is provided on one side of the bottom bucket, a third mounting hole is provided on the fixing plate, and the swirling air distribution mechanism is fixed in the bottom bucket through the third mounting hole and bolts.
  • Fig. 1 is a schematic diagram of the structure of a cyclone split-air fluidized bed according to an embodiment of the invention
  • Figure 2 is a schematic diagram of the assembly structure of the swirling air distribution mechanism
  • Figure 3 is a schematic diagram of the explosive structure of the swirling air distribution mechanism
  • Figure 4 is a schematic diagram of the structure of a single air distribution plate
  • Figure 5 is a schematic diagram of the structure of two adjacent air distribution plates
  • Figure 6 is a schematic diagram of a partially assembled structure of a supporting plate and a wind dividing plate
  • Figure 7 is a schematic diagram of the structure of the fixed plate
  • Figure 8 is the ANSYS FLUENT general fluid simulation diagram of the hot air passing through the swirling air distribution mechanism.
  • the terms “installed”, “connected”, “connected”, “fixed” and other terms should be understood in a broad sense, for example, it can be a fixed connection or a detachable connection. , Or integrally connected; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the internal communication between two components.
  • installed can be a fixed connection or a detachable connection. , Or integrally connected; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the internal communication between two components.
  • the term “and/or” as used herein includes any and all combinations of one or more related listed items.
  • the cyclone split-air fluidized bed proposed in an embodiment of the present invention includes a bottom barrel 11 and an upper barrel 12 connected to the bottom barrel 11, and the upper barrel 12 is provided with a cloth bag filter.
  • An air outlet 14 is provided on the top of the upper barrel 12, an air inlet 15 is provided on one side of the bottom barrel 11, and a swirling air distribution mechanism 20 is installed in the bottom barrel 11.
  • the swirling air distribution mechanism 20 includes a support plate 21, a fixed plate 22, and a plurality of air distribution plates 23.
  • the support plate 21 has a circular structure, and each of the air distribution plates 23 is connected to each other.
  • the supporting plate 21 is connected to the fixing plate 22, and a number of the air distribution plates 23 are circumferentially distributed on the outer periphery of the supporting plate 21, the fixing plate 22 has a ring structure, and the supporting plate 21, the The fixed plate 22 and all the air distribution plates 23 form a circular structure.
  • the air distribution plate 23 includes a first horizontal portion 231, an inclined portion 232, and a second horizontal portion 233 that are sequentially connected.
  • the first horizontal portion 231, the inclined portion 232, and the second horizontal portion 233 are specifically integrated. Molding structure.
  • the first horizontal portion 231 is parallel to the second horizontal portion 233, for any two adjacent air distribution plates 23, one of the air distribution plates 23
  • the first horizontal portion 231 and the first horizontal portion 231 of the other air distribution plate 23 are on the same horizontal plane, and the second horizontal portion 233 of one of the air distribution plates 23 is at the same level as the other one.
  • the second horizontal portion 233 in the air distribution plate 23 is on the same horizontal plane, and the first horizontal portion 231 in one of the air distribution plates 23 and the first horizontal portion 231 in the other air distribution plate 23 are There is a gap between the two horizontal parts 233.
  • first horizontal portion 231 and the second horizontal portion 233 are both strip-shaped structures with a wide end and a narrow end.
  • the narrow end of the first horizontal portion 231 is clamped to the supporting plate 21, and the wide end of the second horizontal portion 233 is connected to the fixing plate 22.
  • the length of the second horizontal portion 233 is greater than the length of the first horizontal portion 231, the end of the wider end of the second horizontal portion 233 is provided with a first mounting hole 234, and the fixing plate 22 is A second mounting hole 221 is provided, and the first mounting hole 234 and the second mounting hole 221 are fixedly connected by bolts.
  • the length of the first horizontal portion 231 is greater than the length of the inclined portion 232, the narrower end of the first horizontal portion 231, the narrower end of the second horizontal portion 233, and the inclined
  • the part 233 encloses a gap 235.
  • the supporting board 21 includes a first sub-board 211, a second sub-board 212, a third sub-board 213, and a fourth sub-board 214 stacked in sequence.
  • the first sub-board 211, the second sub-board 212, The third sub-board 213 and the fourth sub-board 214 are both circular structures.
  • the four sub-boards are arranged concentrically and have the same size. They can be installed on the first sub-board 211, the second sub-board 212, and the third sub-board respectively.
  • the sub-board 213 and the fourth sub-board 214 are provided with through holes, and then the first sub-board 211, the second sub-board 212, the third sub-board 213 and the fourth sub-board 214 are fixed together by bolts.
  • the edge of the second sub-board 212 is provided with a plurality of evenly distributed first slots 215, the edge of the fourth sub-board 214 is provided with a plurality of evenly distributed second slots 216, and the first horizontal portion The end with the narrower width of the 231 is clamped in the first slot 215, and the end with the narrower width of the second horizontal portion 233 is clamped in the second slot 216.
  • a cone 24 is provided on one surface of the support plate 21, specifically a cone 24 is provided on the surface of the first sub-board 211, and the projection of the apex of the cone 24 on the support plate 21 is the same as The centers of the supporting plates 21 coincide.
  • the provision of the cone 24 can enhance the effect of the swirling flow.
  • the fixing plate 22 is provided with a third mounting hole 222, and the swirl flow dividing mechanism 20 is fixed in the bottom bucket 11 through the third mounting hole 222 with bolts.
  • the support plate 21, the fixed plate 22, the air distribution plate 23 and the cone 24 are all steel materials to ensure the structural strength.
  • the hot air flowing through the air distribution mechanism 20 has good uniformity.
  • the swirling flow can make the material and the hot air more fully contact, and improve the drying efficiency.
  • the height difference formed by this gap can effectively prevent the material from flowing back into the bottom bucket 11 and effectively avoid collapse.
  • the occurrence of the bed It has been verified in practice that the discharge efficiency of the fluidized bed with the cyclone air distribution mechanism 20 is 10 times higher than the discharge efficiency of the traditional overboard.
  • the discharge time of the traditional fluidized bed air passing plate is about 20 minutes, and the discharge is not complete, and the residual amount is between 3%-10%, and the swirling air distribution mechanism is used. 20.
  • the discharging time can be completed within 2 minutes, and the residual amount is almost zero.
  • the swirling air distribution mechanism 20 is installed through assembly, which not only effectively prevents material deformation and welding deformation differences in the processing process, but also effectively ensures that the components are fully assembled from cutting, forming, and assembly. The accuracy of the process.
  • the swirling air distribution mechanism 20 adopts a split design of air distribution plate components, which solves the problems of welding deformation and processing difficulties in the forming process of the mechanism.
  • the independent blades are formed by molds. The method is simple and has good consistency. The rigidity of the blades is greatly increased. The gaps after assembly are overlapped. Even if there are residual materials, you don’t have to worry about it. In addition, it is difficult to clean the wind board of the traditional mat mesh stacking method.
  • the swirling air distribution mechanism 20 in the present application can be divided into parts to clean individual parts separately. Specifically, it can be effectively cleaned by a special ultrasonic cleaning machine, which is simple to operate and convenient to clean.

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

La présente invention concerne un lit fluidisé de distribution d'air tourbillonnant comprenant un mécanisme de distribution d'air tourbillonnant (20). Le mécanisme de distribution d'air tourbillonnant (20) comprend une plaque de support (21), une plaque fixe (22) et plusieurs plaques de distribution d'air (23). La plaque de support (21) présente une structure circulaire. Chacune des plaques de distribution d'air (23) est raccordée séparément à la plaque de support (21) et à la plaque fixe (22). Les plusieurs plaques de distribution d'air (23) sont réparties de manière circonférentielle sur la périphérie de la plaque de support (21). La plaque de support (21), la plaque fixe (22) et toutes les plaques de distribution d'air (23) constituent la structure circulaire. La plaque de distribution d'air (23) comprend une première partie horizontale (231), une partie inclinée (232) et une seconde partie horizontale (233) qui sont raccordées entre elles les unes après les autres. La première partie horizontale (231) est parallèle à la seconde partie horizontale (233). Une première partie horizontale (231) de l'une des deux plaques de distribution d'air (23) adjacentes et une première partie horizontale (231) de l'autre plaque de distribution d'air (23) sont situées dans le même plan horizontal. Un espace est formé entre la première partie horizontale (231) d'une plaque de distribution d'air (23) et une seconde partie horizontale (233) de l'autre plaque de distribution d'air (23). Le lit fluidisé de distribution d'air tourbillonnant peut résoudre le problème du contact inadéquat d'un matériau avec l'air chaud provoqué par la plaque de passage d'air existante, réduire la résistance au vent, éviter le phénomène d'effondrement du lit, et empêcher le matériau de s'écouler en sens inverse vers un cylindre inférieur (11).
PCT/CN2020/119359 2019-10-17 2020-09-30 Lit fluidisé de distribution d'air tourbillonnant Ceased WO2021073436A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN201910989587.6 2019-10-17
CN201910989587.6A CN110895092B (zh) 2019-10-17 2019-10-17 一种旋流分风流化床

Publications (1)

Publication Number Publication Date
WO2021073436A1 true WO2021073436A1 (fr) 2021-04-22

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WO (1) WO2021073436A1 (fr)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110895092B (zh) * 2019-10-17 2021-02-05 宜春万申制药机械有限公司固体制剂制造装备工业设计中心 一种旋流分风流化床
CN111486696A (zh) * 2020-06-02 2020-08-04 古田县尚融生物科技有限公司 一种恒压风量均匀分流器
CN112304031B (zh) * 2020-11-12 2022-03-01 哈尔滨工业大学 一种用于大颗粒物料快速干燥的旋流流化床干燥器
CN115672178A (zh) * 2022-11-01 2023-02-03 重庆科技学院 一种药用螺旋流化床制粒装置
KR102606805B1 (ko) * 2023-07-20 2023-11-29 주식회사 피티케이 스핀 유동을 생성하는 정제분립체용 유동 컨테이너

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CN103900348A (zh) * 2014-04-15 2014-07-02 陈林书 卫生型侧吹布风板
EP2839874A1 (fr) * 2009-04-06 2015-02-25 Lummus Technology Inc. Dispositifs d'injection de flux gazeux dans un lit de solides fluidisés
JP2016123971A (ja) * 2014-12-26 2016-07-11 株式会社パウレック 流動層装置
CN107606878A (zh) * 2017-10-25 2018-01-19 天津宜诺医药工业设计有限公司 循环流化床及循环流化床系统
CN107998994A (zh) * 2017-12-28 2018-05-08 宜春万申制药机械有限公司 一种节能漩涡流化床
CN208817861U (zh) * 2018-05-25 2019-05-03 天津市壹杯红生物技术有限公司 螺旋式多室沸腾床干燥器
CN110895092A (zh) * 2019-10-17 2020-03-20 宜春万申制药机械有限公司固体制剂制造装备工业设计中心 一种旋流分风流化床

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KR100208654B1 (ko) * 1996-12-03 1999-07-15 윤덕용 하단 천공된 드래프트관을 갖는 내부순환유동층 가스화 반응기
CN201079748Y (zh) * 2007-05-12 2008-07-02 绵阳高新区巨子超微科技有限公司 旋流式全流化床
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Publication number Priority date Publication date Assignee Title
EP2839874A1 (fr) * 2009-04-06 2015-02-25 Lummus Technology Inc. Dispositifs d'injection de flux gazeux dans un lit de solides fluidisés
CN202063560U (zh) * 2011-04-12 2011-12-07 重庆佳玛机械制造有限公司 流化床进风系统中的螺旋导流装置
CN103900348A (zh) * 2014-04-15 2014-07-02 陈林书 卫生型侧吹布风板
JP2016123971A (ja) * 2014-12-26 2016-07-11 株式会社パウレック 流動層装置
CN107606878A (zh) * 2017-10-25 2018-01-19 天津宜诺医药工业设计有限公司 循环流化床及循环流化床系统
CN107998994A (zh) * 2017-12-28 2018-05-08 宜春万申制药机械有限公司 一种节能漩涡流化床
CN208817861U (zh) * 2018-05-25 2019-05-03 天津市壹杯红生物技术有限公司 螺旋式多室沸腾床干燥器
CN110895092A (zh) * 2019-10-17 2020-03-20 宜春万申制药机械有限公司固体制剂制造装备工业设计中心 一种旋流分风流化床

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