CN204933974U - Improve the device of pressure-sensitive porcelain Powder Particle Size distribution - Google Patents
Improve the device of pressure-sensitive porcelain Powder Particle Size distribution Download PDFInfo
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- CN204933974U CN204933974U CN201520682670.6U CN201520682670U CN204933974U CN 204933974 U CN204933974 U CN 204933974U CN 201520682670 U CN201520682670 U CN 201520682670U CN 204933974 U CN204933974 U CN 204933974U
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Abstract
The utility model relates to the device improving the distribution of pressure-sensitive porcelain Powder Particle Size.Comprise housing, housing comprises discharging opening, described discharging opening is a gap-like structure, upper part and the lower part of gap-like structure are platy structure, and platy structure is in tilted layout, and the structure of housing is one of following scheme: housing described in A. is the loading device of rotary motion, it comprises cavity, cavity inside has material, and cavity is as on reciprocating sieve, and reciprocating sieve upper and lower is fixing on a spinstand; B. described discharging opening is positioned at the below of discharging housing, comprises the edge of the barrel of rotation below discharging opening, and the barrel of rotation is tubular structure, is rotational structure below the barrel of rotation.The utility model is by moving back and forth carrier with certain speed, powder is uniformly distributed, there is not the friction between powder particles in whole process, thus effectively prevent even process to the destruction of powder pattern and heating, it also avoid the fricative secondary fine powder of powder particles simultaneously.
Description
Technical field
The utility model relates to mechanical field, particularly relates to the device improving the distribution of pressure-sensitive porcelain Powder Particle Size.
Background technology
Spraying dry is exactly adopt spray dryer by means of atomization and the effect of heat, makes the solution in slurry droplet evaporate the method obtaining dry powder.Spray-drying process is exactly that slurry makes slurry drip the process of drying rapidly and becoming particle powder through atomizer atomization.Be used widely in various hyundai electronics, function ceramics industry.It is even that spraying dry has become the homogeneous dry-pressing blank density of modern oxide ceramics prepared composition, obtains the requisite important process measure of element that consistency of performance is good.
The process time of mist projection granulating is longer, the change of the airflow fluctuation in this process in granulation tower, the fluctuation of atomisation pressure and nozzle, capital impacts the granularity of powder, moisture content, and therefore the granularity of powder, moisture content relative time are unordered changes.Evenly general V-type batch mixer or the cylinder of adopting in order to realize powder in current production technology mixes.These two kinds of equipment are all realize mixing by the rolling of powder in cavity substantially.The problem of this way is:
1, powder produces severe friction between particle the pattern of particle is changed in the process of rolling, directly affects the mobility of powder.
2, the phase mutual friction of particle produces secondary fine powder, and these fine powders are often rich in colloid, produce serious mold sticking impact normal production when making powder carry out dry-pressing formed.
3, particle also can produce amount of heat in phase mutual friction, and heating can cause scattering and disappearing of particle moisture content, finally affects processing and forming.
Utility model content
The object of utility model: in order to provide the apparatus and method of the pressure-sensitive porcelain Powder Particle Size distribution of a kind of improvement of better effects if, specific purposes are shown in multiple substantial technological effects of concrete implementation section.
In order to reach as above object, the utility model takes following technical scheme:
Scheme one:
Improve the device of pressure-sensitive porcelain Powder Particle Size distribution, it is characterized in that, comprise housing, housing comprises discharging opening, described discharging opening is a gap-like structure, upper part and the lower part of gap-like structure are platy structure, and platy structure is in tilted layout, and the structure of housing is one of following scheme: housing described in A. is the loading device of rotary motion, it comprises cavity, cavity inside has material, and cavity is as on reciprocating sieve, and reciprocating sieve upper and lower is fixing on a spinstand; B. described discharging opening is positioned at the below of discharging housing, comprises the edge of the barrel of rotation below discharging opening, and the barrel of rotation is tubular structure, is rotational structure below the barrel of rotation.
The further technical scheme of the utility model is, described discharging housing is connected with blast pipe and discharge pipe, blast pipe comprises heating part.
The further technical scheme of the utility model is, described gap-like structure is wait the gap-like structure of width.
Scheme two:
Improve the method for pressure-sensitive porcelain Powder Particle Size distribution, it is characterized in that, utilize device as above, comprise following method:
By being tiled at reciprocating loading device last layer one deck by powder, achieve powder being uniformly distributed at particular space.
The further technical scheme of the utility model is, the barrel that described loading device can be reciprocating hopper or can move in a circle.
The further technical scheme of the utility model is, described housing can with granulation tower material receiving port with the use of, also can with reciprocating sieve with the use of.
Adopt the utility model of as above technical scheme, following beneficial effect is had: the utility model is by moving back and forth carrier with certain speed relative to prior art, powder is uniformly distributed, the friction between powder particles is there is not in whole process, thus effectively prevent even process to the destruction of powder pattern and heating, it also avoid the fricative secondary fine powder of powder particles simultaneously.
Accompanying drawing explanation
In order to further illustrate the utility model, be described further below in conjunction with accompanying drawing:
Fig. 1 is utility model embodiment one structural representation;
Fig. 2 is utility model embodiment two structural representation;
Wherein: 1. reciprocating sieve; 2. the loading device of rotary motion; 3. discharging opening; 4. air inlet; 5. heating part; 6. blast pipe; 7. discharge pipe; 8. the barrel rotated.
Detailed description of the invention
Be described embodiment of the present utility model below in conjunction with accompanying drawing, embodiment does not form restriction of the present utility model:
Embodiment one, composition graphs 1;
Improve the device of pressure-sensitive porcelain Powder Particle Size distribution, it is characterized in that, comprise housing, housing comprises discharging opening, described discharging opening is a gap-like structure, upper part and the lower part of gap-like structure are platy structure, and platy structure is in tilted layout, and the structure of housing is one of following scheme: housing described in A. is the loading device of rotary motion, it comprises cavity, cavity inside has material, and cavity is as on reciprocating sieve, and reciprocating sieve upper and lower is fixing on a spinstand.As realizing structure more specifically:
The discharging opening of reciprocating sieve is made into duckbill, and make its discharging opening become a seam, duckbilled inside is provided with gathering sill, forms a face when powder is flowed out.The width of duckbilled is slightly narrower than loading device, spills to prevent powder.Loading device moves in a circle around reciprocating sieve, and powder is in layer laminated on loading device uniformly, thus realizes the even of powder.Loading device in upper figure can be a cannelure, also can be a rectangular channel moved reciprocatingly.
Embodiment two, composition graphs 2;
Discharging opening is processed into Duckbill type equally, and its width is slightly less than the radius of material-filling drum, and charging basket rotates, and powder is evenly trickled down in barrel.
It should be noted that, above-described Duckbill type, is in fact following structure: be a gap-like structure, upper part and the lower part of gap-like structure are platy structure, and platy structure is in tilted layout.
In a creative way, each effect above independently exists, and can also complete the combination of the above results with a nested structure.
No matter embodiment one or embodiment two; Meal outlet is made into duckbill by the utility model, and make powder be that plane flows out, the width that the width controlling duckbilled makes powder flow appear is slightly smaller than the loading device moved back and forth.By controlling the translational speed of loading device, powder being in layer laminated on loading device uniformly, thus realizing the even of powder.
Not shown part details.
Adopt the method process 200Kg powder of figure mono-, powder is concentrated in the powder groove of 80cm*120cm and be designated as 1# sample.
Adopt V-type mixing tank for coating colors process 200Kg powder, powder is concentrated in the powder groove of 80cm*120cm and be designated as 2# sample.
Undressed powder 200Kg, concentrates on powder in the powder groove of 80cm*120cm and is designated as 3# sample.
Respectively at every groove center O point, and A, B, C, D4 angle sampling, the average grain diameter D50 of test sample, data are as follows:
From upper table, 1# sample each several part particle diameter difference is less, maximum with lowest difference within 10 μm; 2# through roller process is also comparatively even, maximum with lowest difference within 11 μm, but entirety is less than normal compared with 1#, and it is relevant that this and whipping process produce secondary fine powder; Undressed 3# sample each several part particle diameter difference is comparatively large, is maximumly greater than 50 μm with lowest difference.
It should be noted that, multiple schemes that this patent provides comprise basic scheme own, separate, mutually do not restrict, but it also can combine when not conflicting mutually, reaching multiple effect and jointly realizing.
As preferably, the utility model is a kind of method improving the size distribution of pressure-sensitive porcelain powder mainly, belongs to technical field of electronic ceramic.Be widely used in improving various spray drying process and manufacture powder particles distribution improvement.Described method is by changing reciprocating sieve discharging nozzle type and be aided with mobile loading device, realizing powder being uniformly distributed in normal productive process, avoid destruction and the secondary fine powder problem of the granule-morphology that special compounding process causes.It is by special discharging die design, powder is tiled at reciprocating loading device last layer one deck, achieves powder being uniformly distributed at particular space.
The pattern that the utility model solves the powder particles that batch mixer causes destroys, and the high temperature that batch mixing process particle friction produces causes the imbalance of powder internal moisture to lose.The utility model saves special compounding process and equipment investment, decreases the secondary fine powder loss that compounding process produces simultaneously.
more than show and describe general principle of the present utility model, principal character and advantage of the present utility model.Those skilled in the art should understand the utility model and not be restricted to the described embodiments; what describe in above-described embodiment and description just illustrates principle of the present utility model; under the prerequisite not departing from the utility model spirit and scope; the utility model also has various changes and modifications, and these changes and improvements all fall in claimed scope.
Claims (3)
1. improve the device of pressure-sensitive porcelain Powder Particle Size distribution, it is characterized in that, comprise housing, housing comprises discharging opening, described discharging opening is a gap-like structure, upper part and the lower part of gap-like structure are platy structure, and platy structure is in tilted layout, and the structure of housing is one of following scheme: housing described in A. is the loading device of rotary motion, it comprises cavity, cavity inside has material, and cavity is as on reciprocating sieve, and reciprocating sieve upper and lower is fixing on a spinstand; B. described discharging opening is positioned at the below of discharging housing, comprises the edge of the barrel (8) of rotation below discharging opening, and the barrel (8) of rotation is tubular structure, and barrel (8) below of rotation is rotational structure.
2. the device improving the distribution of pressure-sensitive porcelain Powder Particle Size as claimed in claim 1, is characterized in that, described discharging housing is connected with blast pipe and discharge pipe, blast pipe comprises heating part.
3. the device improving the distribution of pressure-sensitive porcelain Powder Particle Size as claimed in claim 1, is characterized in that, described gap-like structure is wait the gap-like structure of width.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520682670.6U CN204933974U (en) | 2015-09-06 | 2015-09-06 | Improve the device of pressure-sensitive porcelain Powder Particle Size distribution |
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| CN201520682670.6U CN204933974U (en) | 2015-09-06 | 2015-09-06 | Improve the device of pressure-sensitive porcelain Powder Particle Size distribution |
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| CN204933974U true CN204933974U (en) | 2016-01-06 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106493064A (en) * | 2015-09-06 | 2017-03-15 | 西安恒翔电子新材料有限公司 | Improve the apparatus and method of pressure-sensitive porcelain Powder Particle Size distribution |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106493064A (en) * | 2015-09-06 | 2017-03-15 | 西安恒翔电子新材料有限公司 | Improve the apparatus and method of pressure-sensitive porcelain Powder Particle Size distribution |
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