A portable switch vibration dryer

Abstract

The present invention discloses a portable switch vibration dryer, which belongs to the technical field of vibration dryers. The key points of the technical solution are that it includes a base, a vibration seat, a lower material bin, a plurality of movable material bins and an upper material bin in sequence from bottom to top; the lower material bin is provided with a discharge port and an air inlet; the movable material bin includes an outer frame and a material tray arranged in the outer frame, the material tray is provided with a material discharge mechanism and a plurality of air vents, two vertical shafts are symmetrically arranged on both sides of the movable material bin, and a plurality of movable material bins are alternately rotated and connected to the two vertical shafts in sequence; the upper material bin is provided with a discharge port and an air outlet; the upper and lower ends of each outer frame are respectively provided with an upper sealing ring and a lower sealing ring. The portable switch vibration dryer has high discharge quality, low energy efficiency loss and is easy to be thoroughly cleaned.

Description

Technical Field

[0001] The invention relates to the technical field of vibration dryers, in particular to a portable switch vibration dryer. Background Art

[0002] Drugs are roughly divided into western medicine APIs and drug preparations, both of which include sterile drugs and non-sterile drugs, as well as traditional Chinese medicine, biological preparations, etc. APIs are the basic raw materials of drugs, most of which are crystalline. Wet materials are crystalline powders and granular solids that have been filtered or separated. According to the characteristics and requirements of the materials, a suitable drying method is selected to obtain a dried finished product. Drying ovens were mostly used in the early days, but in the past 20 years they have been gradually replaced by various more advanced drying devices. The most widely used one is the double-cone rotary dryer. There are also vacuum vibration dryers, multi-functional dryers and some direct heating drying equipment. Another part of the APIs are aqueous solutions, which are directly dried by spray drying, such as streptomycin, gentamicin, etc. Aqueous solutions that require low-temperature drying are freeze-dried.

[0003] Prepared drugs are finished drugs. One type is raw materials packaged into injections, which are sterile drugs. The other type is raw materials and excipients mixed in proportion and then put into capsules or made into small granules and then pressed into tablets. They are oral drugs and are generally sterile drugs. Granulation is an important process in drug production. Early operations were completed by mixing, kneading, granulating and drying multiple unit equipment. In recent years, boiling granulation, spray granulation and other methods have been used to mix, granulate and dry the main and auxiliary materials at one time, which is also called one-step granulation and drying.

[0004] Chinese medicine is usually in the form of blocks, slices, or made into pieces from extracts. It has special properties, such as large particles (blocks, slices, pills), sugar content, high viscosity, heat sensitivity, etc. Some also require variable temperature processes, which brings difficulties to the determination of drying technology and equipment selection. Currently, fluidized drying and improved vibrating fluidized bed, spray drying, etc. are more commonly used.

[0005] Biological products have strict temperature restrictions, and most require instantaneous drying, such as microwave drying, fluidized bed drying, and freeze drying.

[0006] The following are the characteristics of various common drying methods:

[0007] Hot air circulation oven: Hot air circulation oven has a wide range of applicability, and is generally applicable to flammable, fragile, sticky, thixotropic or paste materials. Its disadvantages are that the material is static, the drying time is long, the efficiency is low, the tray is manually loaded, and the drying process needs to be turned several times. There is a lot of dust, easy pollution, high labor intensity, high energy consumption, and the thermal energy utilization rate does not exceed 40%;

[0008] Microwave belt drying: microwave energy is directly radiated into the material layer, which increases the temperature inside the material layer, produces pressure, and the moisture evaporates and transfers to the surface and is taken away by the hot air. It belongs to static, microwave source drying, which is easy to cause "hot spots" and "thermal runaway", large loss of heat-sensitive components and volatile oils, long dissolution, large color difference, positive and negative sides, cracked pills, and uneven drying;

[0009] Drum drying: This equipment uses a blower to pass clean air through a heater, heats the air to the temperature required by the process, and blows it into the wind chamber. The hot air passes through the small holes in the drum to fully transfer heat and mass with the material in the drum, and the material is dried in a certain period of time. The residual hot air after drying is purified by a cyclone separator and an air filter and then enters the blower. A fresh air replenishment valve is provided at the blower inlet, and a wet air release valve is provided at the blower outlet to adjust the circulation system to make full use of the residual heat and improve thermal efficiency. It belongs to dynamic, thermal radiation drying, and is very easy to deform, produce special-shaped pills, and deflated pills. It has poor uniformity, uneven drying, and is mass-produced.

[0010] It can be seen that today's drying equipment has the following shortcomings:

[0011] 1. The quality of the pill materials after drying with the existing equipment is poor, the moisture uniformity of the materials is not enough, and some are prone to produce irregular pills, resulting in a long dissolution time;

[0012] 2. Existing drying equipment consumes a lot of energy and has a relatively low drying efficiency;

[0013] 3. Existing drying equipment is difficult to clean thoroughly, and there are dead corners and blind spots for cleaning. Summary of the invention

[0014] In view of the problems existing in the prior art, the object of the present invention is to provide a portable switch vibration dryer, which has high discharge quality, low energy efficiency loss and is easy to be thoroughly cleaned.

[0015] The above technical objectives of the present invention are achieved through the following technical solutions: a portable switch vibration dryer, which includes a base, a vibration seat, a lower material bin, a plurality of movable material bins and an upper material bin from bottom to top; the lower material bin is provided with a discharge port and an air inlet; the movable material bin includes an outer frame and a material tray arranged in the outer frame, the material tray is provided with a material discharge mechanism and a plurality of air vents, two vertical shafts are symmetrically arranged on both sides of the movable material bin, and the plurality of movable material bins are alternately rotated and connected to the two vertical shafts in turn; the upper material bin is provided with a discharge port and an air inlet Air outlet; an upper sealing ring and a lower sealing ring are respectively provided at the upper and lower ends of each outer frame, the upper sealing ring and the lower sealing ring on the two adjacent outer frames are in interference contact, an adsorption groove and a liquid accumulation groove are concentrically opened on the upper sealing ring, the liquid accumulation groove is located on the inner side of the adsorption groove, a cooling cavity is opened inside the upper sealing ring, the adsorption groove is sealed and adsorbed with the lower sealing ring, the liquid accumulation groove is connected with the inner space of the outer frame, a heat conductive part is embedded in the liquid accumulation groove, the heat conductive part extends into the cooling cavity, and a refrigerant medium is introduced into the cooling cavity through a refrigerant pipe.

[0016] In some embodiments, a plurality of perspective windows are provided on the outer frame.

[0017] In some embodiments, the unloading mechanism includes a unloading flap disposed on the material tray and a pneumatic actuator disposed on the outer frame for controlling the flipping of the unloading flap.

[0018] In some embodiments, an air intake main pipe is passed through the outer frame, an air intake branch pipe is connected to the air intake main pipe, and a plurality of air outlet holes are opened on the air intake branch pipe toward the material tray.

[0019] In some embodiments, the air intake branch pipe is in a circular shape and is arranged along the inner wall of the outer frame.

[0020] In some embodiments, a mounting frame is provided on the outer frame, and the air intake branch pipe is hung on the mounting frame.

[0021] In some embodiments, at least one pair of nozzles is disposed on the air intake branch pipe, and the paired nozzles are respectively disposed on both sides of the unloading portion of the material tray, and the output directions of the nozzles are both toward the unloading portion of the material tray.

[0022] In some embodiments, a plurality of lighting lamps are provided on one side of the movable silo, and the plurality of lighting lamps are applied one by one to illuminate each of the movable silos, and each of the lighting lamps can perform independent position adjustment, on-off control, brightness adjustment and color temperature adjustment.

[0023] In some embodiments, the heat conductive component includes a heat conductive ring and a plurality of heat conductive fins arranged in a ring array on the heat conductive ring, wherein the heat conductive ring is embedded in the liquid accumulation groove, and the heat conductive fins extend into the cooling cavity.

[0024] In some embodiments, the thermally conductive ring and the thermally conductive fins are both made of copper.

[0025] In summary, the present invention has the following beneficial effects:

[0026] This portable switch vibration dryer realizes dynamic drying of materials through the counterflow of hot air and materials, effectively improving the drying efficiency and reducing energy consumption. It is equipped with multiple layers of movable silos, each of which can be rotated and opened separately to achieve thorough cleaning without cleaning dead corners and blind spots.

[0027] In addition, this kind of portable switch vibration dryer is provided with an adsorption groove and a liquid accumulation groove on the upper sealing ring, wherein the adsorption groove can adsorb the lower sealing ring, thereby realizing the sealing adsorption between adjacent movable silos to avoid air leakage and material leakage, and a heat conducting member is provided in the liquid accumulation groove, which can maintain a relatively low temperature state in the liquid accumulation groove, thereby causing a large temperature difference between the liquid accumulation groove and the internal space of the silo, and because the material carries a large amount of moisture, the silo is a high temperature and high humidity environment. Under this environment, condensation will accumulate in the liquid accumulation groove that maintains a low temperature. When the movable silo is rotated, the upper sealing ring and the lower sealing ring between adjacent movable silos are The sealing ring will be scraped, and during the scraping process, the accumulated liquid in the liquid accumulation groove will be rubbed out and adhere to the upper sealing ring, so that the surface of the upper sealing ring and the inside of the adsorption groove are moistened with water. This will be conducive to discharging the air between the upper sealing ring and the adsorption groove, achieving higher intensity adsorption, and thus greatly improving the sealing between the upper sealing ring and the lower sealing ring. The above operation does not need to be performed deliberately. The accumulated liquid in the liquid accumulation groove will be automatically generated through the liquefaction of high-temperature steam, and the scraping action between the upper sealing ring and the lower sealing ring will also occur every time the movable silo is opened and closed, which can achieve self-enhancement of the sealing performance between the silos. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 It is the overall structure diagram of the present invention (viewing angle 1);

[0029] Figure 2 This is the overall structural diagram of the present invention (viewing angle 2);

[0030] Figure 3 It is the overall structural diagram of the movable silo of the present invention;

[0031] Figure 4 A top view of the movable silo of the present invention;

[0032] Figure 5A bottom view of the movable silo of the present invention;

[0033] Figure 6 It is a cross-sectional view of the sealing structure between adjacent movable silos of the present invention (for the convenience of identification, there is a distance between the upper sealing ring and the lower sealing ring in the figure, but in fact the two are in close contact with each other);

[0034] Figure 7 It is the overall structural diagram of the heat conducting member of the present invention.

[0035] In the figure: 1. base; 2. vibration seat; 3. lower silo; 301. discharge port; 302. air inlet; 4. movable silo; 401. outer frame; 402. perspective window; 403. pneumatic actuator; 404. air inlet main pipe; 405. air inlet branch pipe; 406. air outlet; 407. nozzle; 408. mounting frame; 409. tray; 410. air vent; 411. unloading flap; 5. upper silo; 501. discharge port; 502. air outlet; 6. vertical shaft; 7. lighting lamp; 8. upper sealing ring; 801. adsorption tank; 802. liquid accumulation tank; 803. cooling chamber; 804. heat transfer ring; 805. heat transfer fin; 806. refrigeration pipe; 9. lower sealing ring. DETAILED DESCRIPTION

[0036] Embodiments of the present invention are described in detail below, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the present invention, and should not be construed as limiting the present invention.

[0037] In the description of the present invention, it should be understood that the terms "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship are based on the orientation or position relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0038] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0039] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0040] like Figure 1-3As shown, a portable switch vibration dryer includes, from bottom to top, a base 1, a vibration seat 2, a lower silo 3, a plurality of movable silos 4 and an upper silo 5. The lower silo 3 is provided with a discharge port 301 and an air inlet 302. The movable silo 4 includes an outer frame 401 and a material tray 409 arranged in the outer frame 401. In order to facilitate observation of the internal situation of the movable silo 4, a plurality of perspective windows 402 can be arranged on the outer frame 401. The material tray 409 is provided with a material discharge mechanism and a plurality of air vents 410. Preferably, the material discharge mechanism includes a material discharge flap 411 arranged on the material tray 409 and a control mechanism 412 arranged on the outer frame 401 for controlling the flipping of the material discharge flap 411. Pneumatic actuator 403, pneumatic actuator 403 can control the flipping of unloading flap 411, so as to realize unloading of materials from unloading flap 411, the flipping interval and flipping angle of unloading flap 411 can be set by oneself, thereby controlling the unloading speed, a plurality of lighting lamps 7 can be arranged on one side of movable silo 4, a plurality of lighting lamps 7 are applied to the lighting of each movable silo 4 one by one, each lighting lamp 7 can be independently adjusted in position, opened and closed, adjusted in brightness and adjusted in color temperature, two vertical shafts 6 are symmetrically arranged on both sides of movable silo 4, a plurality of movable silos 4 are connected to the two vertical shafts 6 by alternating rotation in sequence, and a unloading port 50 is arranged on the upper silo 5 1 and an air outlet 502, wherein the base 1 can be used as a supporting mechanism, and can also be used as an equipment box for installing various mechanisms therein, such as a hot air blower, a motor, and various electronic components, etc. The vibration base 2 can use a conventional vibration motor to generate vibration, which belongs to conventional technical means and is not repeated in this embodiment. In some embodiments, an air intake pipe 404 is passed through the outer frame 401, and the air intake pipe 404 is externally connected to the blowing mechanism. The air intake pipe 404 is connected to an air intake branch pipe 405, and a plurality of air outlet holes 406 are opened on the air intake branch pipe 405 in the direction of the material tray 409, and a high-speed airflow can be sprayed toward the material tray 409 through these air outlet holes 406 to blow To sweep the residual materials, the air inlet branch pipe 405 is preferably arranged in a circular shape along the inner wall of the outer frame 401, and the plurality of air outlet holes 406 are also preferably evenly distributed at equal distances, so that all-round blowing can be achieved. A mounting frame 408 can be arranged on the outer frame 401, and the air inlet branch pipe 405 can be hung on the mounting frame 408 to ensure that the air inlet branch pipe 405 is firmly installed. At least one pair of nozzles 407 can also be arranged on the air inlet branch pipe 405, and the paired nozzles 407 are respectively arranged on both sides of the unloading part of the material tray 409, and the output directions of the nozzles 407 are all toward the unloading part of the material tray 409, thereby assisting the unloading with the help of high-speed airflow to further avoid material residue.

[0041] Multiple movable silos 4 are stacked together layer by layer during operation (such as Figure 1 and Figure 2As shown in the figure, when the work is completed and the movable silo 4 needs to be opened for cleaning, the movable silo 4 can be horizontally rotated layer by layer in opposite directions with the vertical axis 6 as the axis, so that each movable silo 4 can be fully expanded outward, and the internal space of the movable silo 4 will be fully exposed to the outside. The above operation is very convenient for opening or closing the movable silo 4, and is also conducive to thorough cleaning. After cleaning, each movable silo 4 can be rotated and reset.

[0042] During the drying process, hot air is introduced from the air inlet 302, the hot air first enters the lower silo 3, and then passes through the air vents 410 of each movable silo 4 from bottom to top, and then enters the upper silo 5, and is finally discharged outward through the air outlet 502. The material is injected from the discharge port 501, and the material first enters the upper silo 5. Under the action of the vibration of the vibration seat 2 and its own gravity, the material passes through the discharge mechanism of each movable silo 4 from top to bottom, and then enters the lower silo 3, and finally the discharge is completed through the discharge port 501. During the process, the material and the hot air flow countercurrently, and the material and the hot air can achieve more intense contact, so as to realize dynamic drying. In summary, this kind of portable switch vibration dryer realizes dynamic drying of the material through the countercurrent of hot air and material, effectively improves the drying efficiency, and thus reduces energy consumption, and is provided with multiple layers of movable silos 4, each layer of movable silos 4 can be rotated and opened separately to achieve thorough cleaning, and there are no cleaning dead corners and blind spots.

[0043] like Figure 3-7As shown, an upper sealing ring 8 and a lower sealing ring 9 are respectively provided at the upper and lower ends of each outer frame 401, and both the upper sealing ring 8 and the lower sealing ring 9 can be made of rubber material. The upper sealing ring 8 and the lower sealing ring 9 on the two adjacent outer frames 401 are in interference contact, and an adsorption groove 801 and a liquid accumulation groove 802 are concentrically provided on the upper sealing ring 8. The liquid accumulation groove 802 is located on the inner side of the adsorption groove 801, and a cooling cavity 803 is provided inside the upper sealing ring 8. The adsorption groove 801 and the lower sealing ring 9 are sealed and adsorbed, and the liquid accumulation groove 802 is connected with the inner space of the outer frame 401. The inner space of the outer frame 401 is the transmission space for materials and hot air. The space is high temperature and high humidity. A heat conductive part is embedded in the liquid accumulation groove 802, and the heat conductive part extends into the cooling cavity 803. A refrigerant medium is introduced into the cooling cavity 803 through a refrigerant pipe 806. The refrigerant pipe 806 Two heat conducting fins may be provided, one for injecting refrigerant and the other for discharging refrigerant, so that the refrigerant is always in a flowing state to ensure its heat exchange effect. The refrigerant may be cold air, cold water, etc. Under the heat conduction of the heat conducting element, the flowing refrigerant can keep the liquid accumulation groove 802 at a relatively low temperature (compared with the inner space temperature of the outer frame 401). In some embodiments, the heat conducting element includes a heat conducting ring 804 and a plurality of heat conducting fins 805 arranged in a ring array on the heat conducting ring 804, wherein the heat conducting ring 804 is embedded in the liquid accumulation groove 802, and the heat conducting fins 805 extend into the cooling cavity 803. Preferably, the heat conducting ring 804 and the heat conducting fins 805 are both made of copper, and the plurality of heat conducting fins 805 have excellent heat exchange performance and can achieve efficient heat exchange in the liquid accumulation groove 802.

[0044] When drying, multiple movable silos 4 are stacked together layer by layer. At this time, the adsorption groove 801 can adsorb the lower sealing ring 9, thereby realizing the sealing adsorption between adjacent movable silos 4 to avoid air leakage and material leakage. The heat-conducting member in the liquid accumulation groove 802 can maintain the relatively low temperature state in the liquid accumulation groove 802, so that there is a large temperature difference between the liquid accumulation groove 802 and the internal space of the silo. In addition, since the material carries a large amount of moisture, the silo is a high-temperature and high-humidity environment. In this environment, condensation will accumulate in the liquid accumulation groove 802 that maintains a low temperature (high-temperature water vapor is cooled and liquefied into dew). When the movable silo 4 is rotated, the upper sealing ring 8 and the lower sealing ring 9 between adjacent movable silos 4 are connected. The ring 9 will produce scraping, and during the scraping process, the accumulated liquid in the liquid accumulation groove 802 will be rubbed out and adhered to the upper sealing ring 8, so that the surface of the upper sealing ring 8 and the adsorption groove 801 are wetted and kept moist, which will be conducive to the discharge of air between the upper sealing ring 8 and the adsorption groove 801, and achieve higher strength adsorption, thereby greatly improving the sealing between the upper sealing ring 8 and the lower sealing ring 9, and the above operation does not need to be performed deliberately, the accumulated liquid in the liquid accumulation groove 802 will be automatically generated by the liquefaction of high-temperature steam, and the scraping action between the upper sealing ring 8 and the lower sealing ring 9 will also occur every time the movable silo 4 is opened and closed, which can realize the self-enhancement of the sealing performance between the silos. Of course, in order to achieve the sealing between all silos, a lower sealing ring 9 can be set at the bottom of the upper silo 5, and an upper sealing ring 8 can be set at the top of the lower silo 3.

[0045] This specific embodiment is merely an explanation of the present invention and is not a limitation of the present invention. After reading this specification, those skilled in the art may make non-creative modifications to the present embodiment as needed. However, as long as they are within the scope of the claims of the present invention, they are protected by the patent law.

Claims

1. A portable switch vibration dryer, characterized in that: The device comprises, from bottom to top, a base (1), a vibration base (2), a lower material bin (3), a plurality of movable material bins (4) and an upper material bin (5); The lower silo (3) is provided with a material outlet (301) and an air inlet (302); The movable material bin (4) comprises an outer frame (401) and a material tray (409) arranged in the outer frame (401); the material tray (409) is provided with a material unloading mechanism and a plurality of air vents (410); two vertical shafts (6) are symmetrically arranged on both sides of the movable material bin (4); and a plurality of the movable material bins (4) are connected to the two vertical shafts (6) in an alternating manner in rotation. The upper material bin (5) is provided with a material discharge port (501) and an air outlet (502); An upper sealing ring (8) and a lower sealing ring (9) are respectively provided at the upper and lower ends of each outer frame (401); the upper sealing ring (8) and the lower sealing ring (9) on two adjacent outer frames (401) are in interference contact; an adsorption groove (801) and a liquid accumulation groove (802) are coaxially provided on the upper sealing ring (8); the liquid accumulation groove (802) is located on the inner side of the adsorption groove (801); a cooling cavity (803) is provided inside the upper sealing ring (8); the adsorption groove (801) and the lower sealing ring (9) are sealed and adsorbed; the liquid accumulation groove (802) is communicated with the inner space of the outer frame (401); a heat-conducting member is embedded in the liquid accumulation groove (802); the heat-conducting member extends into the cooling cavity (803); a refrigerant medium is introduced into the cooling cavity (803) through a refrigerant pipe (806).

2. A portable switch vibration dryer according to claim 1, characterized in that: The outer frame (401) is provided with a plurality of perspective windows (402).

3. A portable switch vibration dryer according to claim 1, characterized in that: The material unloading mechanism comprises a material unloading flap (411) arranged on the material tray (409) and a pneumatic actuator (403) arranged on the outer frame (401) for controlling the flipping of the material unloading flap (411).

4. A portable switch vibration dryer according to claim 1, characterized in that: The outer frame (401) is provided with an air intake main pipe (404), the air intake main pipe (404) is connected with an air intake branch pipe (405), and the air intake branch pipe (405) is provided with a plurality of air outlet holes (406) in the direction of the material tray (409).

5. A portable switch vibration dryer according to claim 4, characterized in that: The air intake branch pipe (405) is in a circular ring shape and is arranged along the inner wall of the outer frame (401).

6. A portable switch vibration dryer according to claim 4, characterized in that: The outer frame (401) is provided with a mounting frame (408), and the air intake branch pipe (405) is hung on the mounting frame (408).

7. A portable switch vibration dryer according to claim 4, characterized in that: At least one pair of nozzles (407) is provided on the air intake branch pipe (405), and the paired nozzles (407) are respectively arranged on both sides of the unloading position of the material tray (409), and the output directions of the nozzles (407) are all toward the unloading position of the material tray (409).

8. The portable switch vibration dryer according to claim 1, characterized in that: A plurality of lighting lamps (7) are provided on one side of the movable silo (4), and the plurality of lighting lamps (7) are applied one by one to illuminate each of the movable silos (4), and each of the lighting lamps (7) can be independently position-adjusted, switched on and off-controlled, and brightness-adjusted and color-temperature-adjusted.

9. The portable switch vibration dryer according to claim 1, characterized in that: The heat-conducting component comprises a heat-conducting ring (804) and a plurality of heat-conducting fins (805) arranged in a ring array on the heat-conducting ring (804), wherein the heat-conducting ring (804) is embedded in the liquid accumulation groove (802), and the heat-conducting fins (805) extend into the cooling cavity (803).

10. A portable switch vibration dryer according to claim 9, characterized in that: The heat-conducting ring (804) and the heat-conducting fins (805) are both made of copper.

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