CN219983921U

CN219983921U - PVP test drying device

Info

Publication number: CN219983921U
Application number: CN202321103831.2U
Authority: CN
Inventors: 程跃光; 杨小彩; 吴用; 马宁
Original assignee: Huangshan Bonsun Pharmaceuticals Co ltd
Current assignee: Huangshan Bonsun Pharmaceuticals Co ltd
Priority date: 2023-05-10
Filing date: 2023-05-10
Publication date: 2023-11-10
Anticipated expiration: 2033-05-10

Abstract

The utility model discloses a PVP test drying device, which comprises a dryer main body, wherein a drying bottle is arranged on the dryer main body, one end of the bottom of the drying bottle is provided with a cyclone separator which is communicated with the drying bottle, a plurality of rotatable scraping plates for scraping materials on the inner wall are arranged in the drying bottle, a plurality of blowing holes for blowing off the materials on the surface of the scraping plates and the inner wall of the drying bottle are arranged on the scraping plates, a blowing groove which is communicated with the blowing holes is arranged in the scraping plates, and a blowing system for providing air flow in the blowing holes is arranged in the blowing groove. The design of the blowing holes can enable the surface of the scraping plate to be cleaner, and the inner wall of the drying bottle can be better cleaned by blowing the air flow, so that materials are prevented from being accumulated on the inner wall; the utility model overcomes the defects of the prior art, has reasonable design and compact structure, and has higher social use value and application prospect.

Description

PVP test drying device

Technical Field

The utility model relates to the technical field of PVP (polyvinyl pyrrolidone), in particular to a PVP test drying device.

Background

Polyvinylpyrrolidone (PVP) is a nonionic polymer compound, which is the most characteristic of N-vinyl amide polymers and is the deepest and most widely studied fine chemical. Has been developed into 3 kinds of non-ionic, cationic and anionic products, including industrial grade, medical grade and food grade products, including homopolymer, copolymer and cross-linked polymer products with relative molecular mass from thousands to over one million, and has been widely used with excellent and unique properties.

The medical grade polyvinylpyrrolidone often can need to use the spray drying tower in production test, spray drying is that the raw materials liquid is put into the atomizer and is separated into the droplet, obtain the dry process of powder particle shape product with hot air or other gaseous and the direct contact method of droplet, however current spray drying tower often can appear PVP powder adhesion in the condition of tower body inner wall when stoving PVP, the material that leads to the inner wall piles up, cause the loss, increase the cost, can design the scraper blade in current some dry bottles and strike off the material, but the scraper blade is limited to the scraping efficiency of material, moreover the scraper blade is at the in-process of scraping, some material can pile up on the scraper blade surface, lead to the inefficiency that the scraper blade scraped off.

Accordingly, the inventor has the problem of providing a PVP test drying device for achieving the purpose of having more practical value by keeping the experience of the design development and the actual manufacturing in the related industry for many years and researching and improving the existing structure and the defects.

Disclosure of Invention

In order to solve the problems that PVP powder is adhered to the inner wall of a tower body frequently when PVP is dried in the existing spray drying tower in the background art, so that materials on the inner wall are accumulated, loss is caused, and cost is increased, the utility model provides a PVP test drying device.

In order to achieve the above purpose, the present utility model adopts the following technical scheme:

the utility model provides a PVP test drying device, includes the dryer main part, be equipped with the drying bottle that is connected in the dryer main part, drying bottle import department is equipped with atomizer, and drying bottle bottom one end is equipped with the cyclone that is linked together, cyclone bottom is equipped with the collecting vessel, and cyclone upper end is equipped with the blast pipe, be equipped with a plurality of rotatable scrapers that just are used for the inner wall material to strike off in the drying bottle, be equipped with a plurality of blowholes that are used for the scraper blade surface and dry bottle on the inner wall material to blow off on the scraper blade, and be equipped with the blowing groove that is linked together with a plurality of blowholes in the scraper blade, the blowing system that is used for providing the air current in the blowhole in the blowing groove.

Preferably, the drying bottle bottom is equipped with rotatable rotation axis, fixed connection between scraper blade bottom and the rotation axis lateral wall, be equipped with fixed connection and diameter less than the regulating spindle of rotation axis on the rotation axis, drying bottle bottom is equipped with fixed connection's regulating box, but be equipped with the regulating plate of up-and-down motion in the regulating box, be equipped with a plurality of transmission grooves in the rotation axis, transmission groove one end and corresponding blowing groove intercommunication, and the transmission groove other end and the upper inner wall intercommunication of regulating box, be equipped with the one-way discharge valve that is used for air current exhaust in the transmission groove, be equipped with first hole on the regulating box, be equipped with the one-way admission valve that is used for the air current to get into in the first hole.

Preferably, the adjusting shaft rotates to pass through the middle parts of the adjusting box and the adjusting plate, and the adjusting shaft is provided with reciprocating threads for driving the adjusting plate to periodically move up and down.

Preferably, a telescopic pipe is sleeved on the adjusting shaft, one end of the telescopic pipe is rotationally and hermetically connected with the adjusting plate, and the other end of the telescopic pipe is rotationally and hermetically connected with the inner wall of the adjusting box.

Preferably, the drying bottle bottom is equipped with the recovery bottle of fixed connection and being linked together, the rotation axis sets up at recovery bottle middle part, recovery bottle bottom one side is equipped with can open and shut and is used for material exhaust discharging frame.

Preferably, an inclined plane is arranged on one side of the scraping plate, a guide block which is fixedly connected is arranged on the inclined plane, the blowing hole is arranged on the guide block, and the air flow direction of the blowing hole blows towards the cleaning rod.

Compared with the prior art, the utility model has the beneficial effects that:

the design of blowing the hole can blow the material through the air current that blows out of blowing the hole, makes the material can be along with the air current motion to in can getting into cyclone along with the air current, improve the recovery efficiency of material, the air current also can make the scraper blade surface cleaner simultaneously, and the blowing of air current also can carry out better cleanness to the drying bottle inner wall, prevent that the material from piling up at the inner wall.

Drawings

In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, it being obvious that the drawings in the following description are only some embodiments of the utility model, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

Fig. 1 is a schematic perspective view of a dryer body according to the present utility model.

Fig. 2 is a schematic perspective view of the scraper, the rotating shaft and the adjusting box of the utility model.

FIG. 3 is a schematic diagram of a cross-sectional connection structure of a blowing hole and a blowing slot according to the present utility model.

Fig. 4 is a schematic diagram of a cross-sectional connection structure of the adjusting box and the rotating shaft of the present utility model.

In the figure: 1. a dryer main body; 11. a feed pipe; 12. an atomizing nozzle; 2. drying the bottle; 20. a connecting pipe; 21. recovering the bottle; 22. a discharging frame; 3. a cyclone separator; 31. a collection tank; 4. a driving motor; 41. a rotation shaft; 5. an adjusting box; 51. an adjusting shaft; 52. a reciprocating thread; 53. a telescopic tube; 54. a first hole; 541. a one-way air inlet valve; 55. an adjusting plate; 6. a scraper; 61. blowing holes; 62. an air blowing groove; 63. a flow guiding block; 64. a transmission groove; 641. a one-way exhaust valve; 65. and (5) an inclined plane.

Detailed Description

For the purpose of making the objects, technical solutions and advantages of the embodiments of the present utility model more apparent, the technical solutions of the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model, and it is apparent that the described embodiments are some embodiments of the present utility model, but not all embodiments of the present utility model. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

Example 1

Referring to fig. 1-4, a PVP test drying device, including dryer main part 1, be equipped with the drying bottle 2 that is connected on the dryer main part 1, drying bottle 2 import department is equipped with atomizer 12, and drying bottle 2 bottom one end is equipped with the cyclone 3 that is linked together, cyclone 3 bottom is equipped with collection tank 31, and cyclone 3 upper end is equipped with the blast pipe, be equipped with a plurality of rotatable scraping plates 6 that just are used for the inner wall material to strike off in the drying bottle 2, be equipped with a plurality of blowing holes 61 that are used for scraping plates 6 surface and drying bottle 2 inner wall material to blow off on the scraping plates 6, and be equipped with the blowing groove 62 that is linked together with a plurality of blowing holes 61 in the scraping plates 6, be used for the blowing system that provides the air current in the blowing holes 61 in the blowing groove 62. Wherein the drying bottle 2 is communicated with the cyclone separator 3 through a connecting pipe 20.

The design of blowing hole 61 can blow the material through the air current that blows out of blowing hole 61, makes the material can be along with the air current motion to in can getting into cyclone 3 along with the air current, improve the recovery efficiency of material, the air current also can make scraper blade 6 surface cleaner simultaneously, and the blowing of air current also can carry out better cleanness to drying bottle 2 inner wall, prevent that the material from piling up at the inner wall.

In this embodiment, a rotatable rotating shaft 41 is disposed at the bottom of the drying bottle 2, the bottom of the scraper 6 is fixedly connected with the side wall of the rotating shaft 41, a driving motor 4 is disposed at the bottom of the main body of the dryer, and an output end of the driving motor 4 is fixedly connected with the rotating shaft 41; the utility model discloses a drying bottle, including rotatory shaft 41, drying bottle 2, rotary shaft 41, driving motor 4, adjusting shaft 41, adjusting shaft 51, driving motor 4 output fixed connection, drying bottle 2 bottom is equipped with fixed connection's regulating box 5, be equipped with the regulating plate 55 of up-and-down motion in the regulating box 5, be equipped with a plurality of transmission grooves 64 in the rotatory shaft 41, transmission groove 64 one end and corresponding blowing groove 62 intercommunication, and transmission groove 64 other end and regulating box 5 upper inner wall intercommunication, be equipped with in the transmission groove 64 and be used for air current exhaust one-way discharge valve 641, be equipped with first hole 54 on the regulating box 5, be equipped with the one-way admission valve 541 that is used for the air current to get into in the first hole 54.

In this embodiment, the adjusting shaft 51 rotates through the middle parts of the adjusting box 5 and the adjusting plate 55, and the adjusting shaft 51 is provided with a reciprocating thread 52 for driving the adjusting plate 55 to periodically move up and down.

The design of the reciprocating screw thread 52, the adjusting plate 55, the first hole 54, the transmission groove 64, the one-way air inlet valve 541 and the one-way air outlet valve 641 can enable the adjusting plate 55 to periodically move up and down in the adjusting box 5 to be utilized, and the adjusting box 5 forms an air blowing pump by matching with the first one-way feeding valve and the first one-way discharging valve, when the adjusting plate 55 moves upwards, air pressure in the adjusting box 5 can be extruded and conveyed into the air blowing groove, and the air is conveyed into the air blowing groove 62 through the diversion of the communicated annular groove, so that the air is blown out through the air blowing hole 61; on the premise of not adding additional power equipment, the scraping plate 6 can blow off the materials on the inner wall surfaces of the scraping plate 6 and the drying bottle 2 while scraping the materials rotationally, so that the cleaning efficiency of the materials on the inner wall of the drying bottle 2 is improved.

In this embodiment, the adjusting shaft 51 is sleeved with a telescopic tube 53, one end of the telescopic tube 53 is rotatably and sealingly connected with the adjusting plate 55, and the other end of the telescopic tube 53 is rotatably and sealingly connected with the inner wall of the adjusting box 5.

The addition of the telescopic tube 53 can improve the sealing performance of the adjusting plate 55 in air extrusion, improve the flow speed of air flow and prevent air leakage.

In this embodiment, the bottom of the drying bottle 2 is provided with a recovery bottle 21 which is fixedly connected and communicated with the bottom, the rotating shaft 41 is disposed in the middle of the recovery bottle 21, and one side of the bottom of the recovery bottle 21 is provided with a discharging frame 22 which can be opened and closed and is used for discharging materials.

In this embodiment, an inclined plane 65 is disposed on one side of the scraper 6, a guiding block 63 fixedly connected to the inclined plane 65 is disposed on the inclined plane 65, the blowing hole 61 is disposed on the guiding block 63, and the air flow direction of the blowing hole 61 blows toward the cleaning rod. The blowing hole 61 may be disposed on the other side of the scraper 6, and the blowing hole 61 may be inclined to blow toward the inner wall of the drying bottle 2, so that the material blowing on the inclined surface 65 of the scraper 6 may be realized, and the material blowing on the inner wall of the drying bottle 2 may be realized.

In this embodiment, a drying system for generating a dry hot air flow is further provided in the dryer main body 1, and in the prior art, the drying system, the cyclone separator 3 and the atomizer 12 are all conventional, so that the present utility model will not be described in detail.

Working principle:

s1, when spray drying is carried out, a feed pipe 11 is inserted into a material barrel filled with raw material liquid, so that the material enters an atomization nozzle 12 through the feed pipe 11, a drying system is started, dry hot air flow can enter a drying bottle 2 to instantly dry atomized material, the dried material enters a cyclone separator 3 along with air flow to separate the material, the air is discharged through an exhaust pipe, and the material enters a collection tank 31 to be recovered;

s2, when the drying bottle 2 is dried, the driving motor 4 is started to drive the rotating shaft 41 to rotate, the rotating shaft 41 can rotate to drive the scraping plate 6 on the inner wall of the drying bottle 2 to synchronously drive, so that the scraping plate 6 can timely scrape materials on the inner wall of the drying bottle 2, meanwhile, due to the rotation of the adjusting shaft 51, the adjusting plate 55 can be driven to periodically move up and down through the reciprocating screw thread 52, and when the adjusting plate 55 moves up and down, air in the adjusting box 5 can be extruded and conveyed into the blowing groove through the transmission groove 64, so that the air respectively enters the corresponding blowing holes 61, and the blowing holes 61 blow the inclined plane 65 of the scraping plate 6 and the materials on the inner wall of the drying bottle 2 at a certain flow speed, so that the materials are effectively prevented from being stuck to the inner wall;

s3, after drying is completed, materials in the drying bottle 2 can enter the recovery bottle 21, and at the moment, a valve on the discharging frame 22 is opened, so that the materials in the recovery bottle 21 can be taken out.

In the description of the present utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings are merely for convenience in describing the present utility model and simplifying the description, and do not indicate or imply that the device or element being referred to must have a specific orientation, be configured and operated in a specific orientation, and therefore should not be construed as limiting the present utility model.

In the present utility model, unless explicitly specified and limited otherwise, the terms "disposed," "mounted," "connected," "secured," and the like are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; the connection may be mechanical connection, direct connection or indirect connection through an intermediate medium, and may be internal connection of two elements or interaction relationship of two elements. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances.

The control mode of the utility model is automatically controlled by the controller, the control circuit of the controller can be realized by simple programming of a person skilled in the art, the supply of power also belongs to common knowledge in the art, and the utility model is mainly used for protecting a mechanical device, so the utility model does not explain the control mode and circuit connection in detail.

The foregoing is only a preferred embodiment of the present utility model, but the scope of the present utility model is not limited thereto, and any person skilled in the art, who is within the scope of the present utility model, should make equivalent substitutions or modifications according to the technical scheme of the present utility model and the inventive concept thereof, and should be covered by the scope of the present utility model.

Claims

1. The utility model provides a PVP test drying device, includes dryer main part (1), be equipped with drying bottle (2) that are connected on dryer main part (1), drying bottle (2) entrance is equipped with atomizer (12), and drying bottle (2) bottom one end is equipped with cyclone (3) that are linked together, cyclone (3) bottom is equipped with collection tank (31), and cyclone (3) upper end is equipped with blast pipe, its characterized in that: be equipped with a plurality of rotatable scraper blades (6) that just are used for the inner wall material to strike off in drying bottle (2), be equipped with a plurality of blowing holes (61) that are used for scraper blade (6) surface and drying bottle (2) on the inner wall material to blow off on scraper blade (6), and be equipped with in scraper blade (6) with a plurality of blowing holes (61) be linked together blowing groove (62), be used for in blowing groove (62) and blow the blowing system that provides the air current in hole (61).

2. The PVP assay drying device according to claim 1, wherein: the utility model discloses a drying bottle, including drying bottle (2), scraper blade (6), rotation axis (41) are equipped with rotatable rotation axis (41), fixed connection between scraper blade (6) bottom and rotation axis (41) lateral wall, regulating spindle (51) of establishing on rotation axis (41), drying bottle (2) bottom is equipped with fixed connection's regulating box (5), be equipped with regulating plate (55) of up-and-down motion in regulating box (5), be equipped with a plurality of transmission groove (64) in rotation axis (41), transmission groove (64) one end and corresponding blowing groove (62) intercommunication, and transmission groove (64) other end and regulating box (5) upper inner wall intercommunication, be equipped with in transmission groove (64) and be used for air current exhaust one-way discharge valve (641), be equipped with first hole (54) on regulating box (5), be equipped with one-way admission valve (541) that are used for the air current to get into in first hole (54).

3. The PVP test drying device according to claim 2, wherein: the adjusting shaft (51) rotates to pass through the middle parts of the adjusting box (5) and the adjusting plate (55), and reciprocating threads (52) for driving the adjusting plate (55) to periodically move up and down are arranged on the adjusting shaft (51).

4. A PVP test drying device according to claim 3, wherein: the telescopic pipe (53) is sleeved on the adjusting shaft (51), one end of the telescopic pipe (53) is rotatably and hermetically connected with the adjusting plate (55), and the other end of the telescopic pipe (53) is rotatably and hermetically connected with the inner wall of the adjusting box (5).

5. The PVP test drying device according to claim 2, wherein: the drying bottle (2) bottom is equipped with fixed connection and the recovery bottle (21) that is linked together, rotation axis (41) set up in recovery bottle (21) middle part, recovery bottle (21) bottom one side is equipped with can open and shut and is used for material exhaust discharging frame (22).

6. The PVP assay drying device according to claim 1, wherein: an inclined plane (65) is arranged on one side of the scraping plate (6), a guide block (63) which is fixedly connected is arranged on the inclined plane (65), the blowing holes (61) are formed in the guide block (63), and the air flow direction of the blowing holes (61) blows towards the cleaning rod.