CN106040093A - Fluidized bed coating device - Google Patents
Fluidized bed coating device Download PDFInfo
- Publication number
- CN106040093A CN106040093A CN201610626502.4A CN201610626502A CN106040093A CN 106040093 A CN106040093 A CN 106040093A CN 201610626502 A CN201610626502 A CN 201610626502A CN 106040093 A CN106040093 A CN 106040093A
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- CN
- China
- Prior art keywords
- coating
- fluidized bed
- web plate
- bed coating
- point wind
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J2/00—Processes or devices for granulating materials, e.g. fertilisers in general; Rendering particulate materials free flowing in general, e.g. making them hydrophobic
- B01J2/16—Processes or devices for granulating materials, e.g. fertilisers in general; Rendering particulate materials free flowing in general, e.g. making them hydrophobic by suspending the powder material in a gas, e.g. in fluidised beds or as a falling curtain
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- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Glanulating (AREA)
Abstract
The invention provides a fluidized bed coating device, which comprises a shell, an air distribution screen plate arranged in the shell and cylindrical helical compression springs, wherein the air distribution screen plate is connected with the bottom of the shell through the cylindrical helical compression springs. According to the device, the cylindrical helical compression springs are arranged, and then the height of the air distribution screen plate can be regulated to ensure that a small particle to be coated at the top end of a fluidized granule is positioned in an atomization area of a spray gun all the time when the height of the position of the fluidized granule changes, so that the coating quality and the coating efficiency can be greatly improved; moreover, the cylindrical helical compression springs are directly proportional to the height of the position of the fluidized granule, so that the device is accurate in control and simple in structure, and automatic coating can be conveniently implemented.
Description
Technical field
The present invention relates to a kind of coating device, particularly relate to a kind of fluidized bed coating equipment.
Background technology
Use coating method, carry out being coated of various active ingredient, have been directed to antioxidation coating, moistureproof coating, gastric solubleness bag
The various effects such as clothing, enteric coating, colored coatings, wherein coating weight gain reaches more than 30% or every batch processing amount more than 300 kilograms
Time, arise that ill effect:
1, coating is difficult to uniformly, and at uneven thin place, strength weak, coating thickness also is difficult to play and is coated effect.
2, existing coating method cannot produce greatly, and difficult quality guarantee.Fluidized-bed coating machine in the market, single
Batch processing amount also not having more than 300 kilograms, impacted during big production, reason is that batch hopper uses artificial cart type, material
The long-pending maximum of bucket capacity only has 1500 liters thus can only process 300 kilograms, and the core ball of entrance is along with the carrying out of coating process, volume meeting
Constantly increase, until when about 2 times, changeless spray gun, top spray form, the spray gun of end spray form, all cause coating quality
Be difficult to qualified, through applied research find when treating capacity more than 20 kilograms every batch, coating weight gain reaches more than 100% simultaneously time, bag
Clothing quality will be defective；Such as: in normal fluid bed, during fluidisation, bulky grain can be partial to and be concentrated on lower section, and little granule can be partially
To concentrating on top, the changeless spray gun in position, when fluidisation material position increases, for the fluidisation position increased, spray gun easily sprays
Not；The spray gun of top spray form, when fluidizing controlling level and changing greatly, gun slot can change from fluosolids upper level,
Cause coating quality to change, and little granule bag is more；Common fountain fluidizes shape, the spray gun of end spray form, in fluidisation
When controlling level changes greatly, fountain fluidized state occurs that the reasons such as change, adhesion rate increasing cause off quality.
3, such as when producing the common volume of production of 20,000 tons per year, need to use the existing coating equipment in sugar production line of more than 200 sets, economical
On the most infeasible.
Chinese Patent Application No. is the patent of 201420183273.X, a kind of fluidized bed coating equipment, relates to high-volume all
Even coating process technical field.To include housing, air inlet, inlet air plenum, point wind web plate, fluidising chamber, separation chamber, air-out
Mouth and the fluidized bed coating equipment of spray gun, use fluidized bed coating method at core ball granule outer wrapping coating materials, connect coating materials
The height of nebulization region of spray gun improve along with the fluidisation material increase of position.Use the form of multiple packet spray gun, by root
According to the difference of fluidisation grain position height in fluid bed, the spray gun controlling correspondence respectively works, and then realizes the purpose of uniform coating, but
It is such mode spray gun structure complexity, and complex operation, need the moment to pay close attention to the real-time height of fluidisation grain position, be not easily achieved certainly
Dynamicization controls.
Summary of the invention
The technical problem to be solved in the present invention is: affect coating quality to fluidize grain position height when solving fluidized coating,
The invention provides a kind of fluidized bed coating equipment to solve the problems referred to above.
The technical solution adopted for the present invention to solve the technical problems is: a kind of fluidized bed coating equipment, including housing and
Point wind web plate being placed in housing, also includes cylindroid helical-coil compression spring, and the bottom of point wind web plate and housing is by described circle
Post spiral compression spring connects.
Further: described housing is provided with fluidising chamber, the sidewall of fluidising chamber is provided with side shooter.
Further: described side shooter angle.
Further: described shell top wall is provided with the top lance that direction is downward.
Further: a described point wind web plate is rectangle, and described cylindroid helical-coil compression spring is respectively arranged on point wind web plate
Four apex.
The invention has the beneficial effects as follows, one fluidized bed coating equipment of the present invention by arranging cylindroid helical-coil compression spring,
Making when fluidizing grain position and highly changing, the height of point wind web plate can regulate therewith, it is ensured that the needs on fluidisation grain top
The little granule of coating is constantly among the range of atomization of spray gun, can be substantially improved the quality of coating and the efficiency of coating, and
The high-order proportional control of cylindroid helical-coil compression spring and fluidisation grain position is accurate, simple in construction, it is simple to realize automatization's coating.
Accompanying drawing explanation
The present invention is further described with embodiment below in conjunction with the accompanying drawings.
Fig. 1 is the structural representation of the present invention a kind of fluidized bed coating equipment optimum embodiment.
In figure 1, housing, 2, point wind web plate, 3, cylindroid helical-coil compression spring, 4, fluidising chamber, 5, side shooter, 6, technique enters
Air port, 7, material, 8, top lance.
Detailed description of the invention
Embodiments of the invention are described below in detail, and the example of described embodiment is shown in the drawings, the most from start to finish
Same or similar label represents same or similar element or has the element of same or like function.Below with reference to attached
The embodiment that figure describes is exemplary, is only used for explaining the present invention, and is not considered as limiting the invention.On the contrary, originally
Inventive embodiment includes all changes in the range of the spirit falling into attached claims and intension, revises and be equal to
Thing.
In describing the invention, it is to be understood that term " " center ", " longitudinally ", " laterally ", " length ", " width ",
" thickness ", " on ", D score, "front", "rear", "left", "right", " vertically ", " level ", " top ", " end " " interior ", " outward ", " axially ",
" radially ", the orientation of the instruction such as " circumferential " or position relationship be based on orientation shown in the drawings or position relationship, merely to just
In describe the present invention and simplifying describe rather than instruction or the hint device of indication or element must have specific orientation, with
Specific azimuth configuration and operation, be therefore not considered as limiting the invention.
Additionally, term " first ", " second " etc. are only used for describing purpose, and it is not intended that indicate or imply relatively important
Property.In describing the invention, it should be noted that unless otherwise clearly defined and limited, term " is connected ", " connection " should
It is interpreted broadly, connects for example, it may be fixing, it is also possible to be to removably connect, or be integrally connected；Can be that machinery connects
Connect, it is also possible to be electrical connection；Can be to be joined directly together, it is also possible to be indirectly connected to by intermediary.Common for this area
For technical staff, above-mentioned term concrete meaning in the present invention can be understood with concrete condition.Additionally, in description of the invention
In, except as otherwise noted, " multiple " are meant that two or more.
In flow chart or at this, any process described otherwise above or method description are construed as, and expression includes
One or more is for realizing the module of code, fragment or the portion of the executable instruction of the step of specific logical function or process
Point, and the scope of the preferred embodiment of the present invention includes other realization, wherein can not by shown or discuss suitable
Sequence, including according to involved function by basic mode simultaneously or in the opposite order, performs function, and this should be by the present invention
Embodiment person of ordinary skill in the field understood.
As it is shown in figure 1, the invention provides a kind of fluidized bed coating equipment, including housing 1 and point wind being placed in housing 1
Web plate 2, also includes cylindroid helical-coil compression spring 3, and the bottom of point wind web plate 2 and housing 1 is by described cylindrical screw compression bullet
Spring 3 connects.
Described housing 1 is provided with fluidising chamber 4, and the sidewall of fluidising chamber 4 is provided with side shooter 5.
Fluidising chamber 4 is positioned at a point top for wind web plate 2, and material 7 is deposited on point wind web plate 2, and technique wind is by coating device
Technique air inlet 6 enters through inlet air plenum, and after undue wind web plate 2 is distributed, material particles fluidisation is got up, and floods side shooter 5, will
Packaging material liquid needed for coating is gone forward side by side in fluidized bed from side shooter 5 atomization, mainly grows up with coating way at particle surface,
So after multi-layer coated, granule is slowly grown up, when increasing the increase with granular mass along with material 7, on point wind web plate
Fluidisation grain position highly gradually rise, whole fluidization quality increase, from Hooke's law, now by cylindroid helical-coil compression spring
The positions of the 3 point wind web plates 2 connected can move down along with the increase of fluidization quality, point wind web plate 2 move down so that
The material particle needing to continue coating that the upper strata of fluid bed is less is among the range of atomization of side shooter 5, it is simple to coating
Proceeding, the material particle being complete coating can be along with the range of atomization moving away side shooter 5 under point wind web plate, it is to avoid
Continue coating, and so forth, until the material in fluid bed is completely formed cud granule.
Described side shooter 5 angle, it is possible to obtain the nebulization region of bigger side shooter so that the efficiency of coating carries
High.
Described housing 1 upper wall is provided with the downward top lance in direction 8, and top lance 8 nebulization region can cover sidepiece spray
The place that rifle 5 cannot cover so that whole fluid bed is all in the range of atomization of spray gun, and because the height of point wind web plate 2
Can raise along with fluidisation grain position height and move down, and then make the distance of fluid bed upper end material particle tool top lance 8 all the time
Constant, it is to avoid in prior art, top lance 8 needs the trouble that the moment adjusts along with fluidisation grain position is highly different so that top
The atomization coating effect of portion's spray gun 8 is more stable.
A described point wind web plate 2 is rectangle, and described cylindroid helical-coil compression spring 3 is respectively arranged on four tops of point wind web plate 2
At Dian, four summit stress make score wind web plate stress more equalize, it is ensured that a point wind web plate 2 keeps steady in coating process
Fixed, prevent from toppling.
In the description of this specification, reference term " embodiment ", " some embodiments ", " example ", " specifically show
Example " or the description of " some examples " etc. means to combine this embodiment or example describes specific features, structure, material or spy
Point is contained at least one embodiment or the example of the present invention.In this manual, to the schematic representation of described term not
Necessarily refer to identical embodiment or example.And, the specific features of description, structure, material or feature can be any
One or more embodiments or example in combine in an appropriate manner.
With the above-mentioned desirable embodiment according to the present invention for enlightenment, by above-mentioned description, relevant staff is complete
Entirely can carry out various change and amendment in the range of without departing from this invention technological thought.The technology of this invention
The content that property scope is not limited in description, it is necessary to determine its technical scope according to right.
Claims (5)
1. a fluidized bed coating equipment, including housing and point wind web plate being placed in housing, it is characterised in that: also include cylinder
Spiral compression spring, the bottom of point wind web plate and housing is connected by described cylindroid helical-coil compression spring.
2. a kind of fluidized bed coating equipment as claimed in claim 1, it is characterised in that: described housing is provided with fluidising chamber, stream
The sidewall changing room is provided with side shooter.
3. a kind of fluidized bed coating equipment as claimed in claim 2, it is characterised in that: described side shooter angle.
4. a kind of fluidized bed coating equipment as claimed in claim 3, it is characterised in that: it is downward that described shell top wall is provided with direction
Top lance.
5. a kind of fluidized bed coating equipment as claimed in claim 4, it is characterised in that: a described point wind web plate is rectangle, institute
State cylindroid helical-coil compression spring and be respectively arranged on four apex of point wind web plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610626502.4A CN106040093A (en) | 2016-08-01 | 2016-08-01 | Fluidized bed coating device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610626502.4A CN106040093A (en) | 2016-08-01 | 2016-08-01 | Fluidized bed coating device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106040093A true CN106040093A (en) | 2016-10-26 |
Family
ID=57197302
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610626502.4A Pending CN106040093A (en) | 2016-08-01 | 2016-08-01 | Fluidized bed coating device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106040093A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114749101A (en) * | 2022-04-29 | 2022-07-15 | 青岛百洋制药有限公司 | Fluidized bed for coating pellets and fluidization process thereof |
-
2016
- 2016-08-01 CN CN201610626502.4A patent/CN106040093A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114749101A (en) * | 2022-04-29 | 2022-07-15 | 青岛百洋制药有限公司 | Fluidized bed for coating pellets and fluidization process thereof |
| CN114749101B (en) * | 2022-04-29 | 2023-10-31 | 青岛百洋制药有限公司 | Fluidized bed for coating micropill and fluidization process thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20161026 |
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| WD01 | Invention patent application deemed withdrawn after publication |