CN103029927A - Novel powder polyvinyl alcohol grain feeder and feeding process - Google Patents
Novel powder polyvinyl alcohol grain feeder and feeding process Download PDFInfo
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- CN103029927A CN103029927A CN2012105291019A CN201210529101A CN103029927A CN 103029927 A CN103029927 A CN 103029927A CN 2012105291019 A CN2012105291019 A CN 2012105291019A CN 201210529101 A CN201210529101 A CN 201210529101A CN 103029927 A CN103029927 A CN 103029927A
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- polyvinyl alcohol
- feeder
- barrel body
- discharging opening
- novel powder
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Abstract
The invention discloses a novel powder polyvinyl alcohol grain feeder, which is characterized by comprising a barrel body and a discharging opening, wherein a feeding opening is arranged at the upper part of the barrel body; a charging opening is circular; the diameter of the barrel body is 300-320 mm; the bottom of the barrel body is connected with one rectangular discharging opening; and the edge length of the barrel body is 130-150 mm, the edge width is 8-10 mm and the height is 8-10 mm. When the feeder disclosed by the invention is used for feeding, glue grains can slowly fall into low-temperature pure water, so as to avoid coated and skin dissolved endobiosis phenomena; the glue grains can be sufficiently swelled, blocks are reduced and the viscosity of glue can reach to process requirements; and furthermore, a process of filtering by using a filtering net is reduced, so that the efficiency is greatly improved.
Description
Technical field
The present invention relates to a kind of novel powder polyvinyl alcohol particle feeder and material feeding process.
Background technology
The batch manufacturing magnetic ferrite magnetic core has two kinds of different manufacturing process, i.e. coprecipitation technology and oxide process both at home and abroad at present.Adopt conventional ceramic technique to produce soft magnetic ferrite, raw MAT'L, main formula and trace mineral supplement are internal causes, and moulding is another key link that guarantees product design.FERRITE CORE product of a great variety, different sizes, forming method is very not identical yet.Commonly used in the production have dry-pressing formed, hot die-casting molding, isostatic compaction etc. several, and with dry-pressing formed the most general.
Dry-pressing formed is a kind of method that extensively adopts during soft magnetic ferrite is produced.The simple middle-size and small-size product of side view is the most suitable to lateral dimension is large, longitudinal size is less especially.Dry-pressing formed is that the pressurization of the pellet in the mould is formed.In order to make the green compact after the moulding have certain mechanical strength, unlikely cracked before sintering, must when producing the soft magnetic ferrite pellet, add adhesives, the main polyvinyl alcohol that adopts in the industry.
Polyvinyl alcohol is organic compound, and white plates, cotton-shaped or pulverulent solids are tasteless.Dissolve polyvinyl alcohol should under agitation add material in the room temperature water first, and accelerate dissolution again heats up after being uniformly dispersed.During dissolving, (being sure not to add in the water more than 40 ℃ this product directly dissolves can while stirring these product slowly to be added the fully effusion of swelling, dispersion and volatile matter in the cold water about 20 ℃, to avoid occurring bag shape and Pi Rong endobiosis), then be warmed up to 95 ℃ of left and right sides accelerate dissolution, and be incubated 2～2.5 hours, until solution no longer contains molecule, again through behind the 28 order corrosion-resistant steel impurity screenings, can be for subsequent use.
Very fast in the process falling speed that is added to the water owing to powdery polyethylene alcohol in this process, thus its dissolution velocity affected, easily produce caking, finally affect the solubility of glue.Therefore, be necessary this problem is carried out deep research.
Summary of the invention
Falling speed comparatively fast produces the problem that caking affects dissolution velocity when the object of the invention is to overcome above-mentioned powdery polyethylene alcohol dissolving, provide a kind of polyvinyl alcohol solid shape thing that can make slowly to drop in the water, reduce caking, improve novel powder polyvinyl alcohol particle feeder and the material feeding process of the solubility of glue.
Technical scheme of the present invention is as follows:
A kind of novel powder polyvinyl alcohol particle feeder is characterized in that comprise cylindrical shell and discharging opening, cylindrical shell top is spout, inlet point is rounded, and its diameter is 300-320mm, and the bottom is connected with an oblong discharging opening, its length of side is 130-150mm, and hem width is 8-10mm, highly is 8-10mm.
The technique of using above-mentioned feeder to feed intake is:
(1) the required powdered polyvinyl alcohol of weighing is for subsequent use;
(2) above-mentioned feeder is placed 20-25 ℃ cold water top, the polyvinyl alcohol that weighs up is added in the above-mentioned feeder, simultaneously above-mentioned cold water is stirred;
(3) after whole polyvinyl alcohol drop in the water, be warming up to 90-100 ℃ with 2-5 ℃ speed, insulation 1-2h.
Under the above-mentioned technique, the glue particle can slowly fall into the low temperature pure water, thereby avoids bag shape and Pi Rong endobiosis occurring, makes fully swelling of glue particle, and caking reduces, and glue viscosity can reach technological requirement; In addition, the present invention has reduced the technique of using filtering net to filter, thereby has greatly improved efficient.
Description of drawings
Fig. 1 is the structural representation of feeder of the present invention.
The specific embodiment
In order to be that the present invention can more clearly explain, the invention will be further described below in conjunction with embodiment and accompanying drawing.
Embodiment:
As shown in Figure 1, a kind of novel powder polyvinyl alcohol particle feeder, it is characterized in that, comprise cylindrical shell 100 and discharging opening 200, cylindrical shell top is spout 101, spout is rounded, its diameter is 320mm, and cylinder body bottom is connected with rectangular discharging opening 200, and its length of side a is 150mm, hem width b is 10mm, and height c is 10mm.
Owing to having less discharging opening, during feeding, the speed that powdered polyvinyl alcohol enters in the water is restricted, and under stirring condition, powdered polyvinyl alcohol can Fast-swelling and be unlikely to caking.
The below describes charging technology of the present invention, namely carries out feeding with above-mentioned feeder:
The required powdered polyvinyl alcohol 35000g of weighing is for subsequent use;
Above-mentioned feeder placed 500kg20 ℃ cold pure water top, the polyvinyl alcohol that weighs up is divided add for three times in the above-mentioned feeder, simultaneously above-mentioned cold water is stirred;
After whole polyvinyl alcohol drop in the water, be warming up to 90 ℃ with 5 ℃ speed, insulation 2h.
The viscosity of gained glue is 50-95mPa.s, meets technological requirement fully.
The above is preferred embodiment of the present invention, but the present invention should not be confined to the disclosed content of this embodiment.So everyly do not break away from the equivalence of finishing under the spirit disclosed in this invention or revise, all fall into the scope of protection of the invention.
Claims (2)
1. a novel powder polyvinyl alcohol particle feeder is characterized in that, comprise cylindrical shell and discharging opening, cylindrical shell top is spout, inlet point is rounded, and its diameter is 300-320mm, and the bottom is connected with an oblong discharging opening, its length of side is 130-150mm, and hem width is 8-10mm, highly is 8-10mm.
2. a powdered polyvinyl alcohol particle material feeding process is characterized in that, may further comprise the steps:
(1) the required powdered polyvinyl alcohol of weighing is for subsequent use;
(2) the described feeder of claim 1 is placed 20-25 ℃ cold water top, the polyvinyl alcohol that weighs up is added in the above-mentioned feeder, simultaneously above-mentioned cold water is stirred;
(3) after whole polyvinyl alcohol drop in the water, be warming up to 90-100 ℃ with 2-5 ℃ speed, insulation 1-2h.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210529101.9A CN103029927B (en) | 2012-12-10 | 2012-12-10 | Novel powder polyvinyl alcohol grain feeder and feeding process |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210529101.9A CN103029927B (en) | 2012-12-10 | 2012-12-10 | Novel powder polyvinyl alcohol grain feeder and feeding process |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103029927A true CN103029927A (en) | 2013-04-10 |
| CN103029927B CN103029927B (en) | 2015-07-01 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210529101.9A Active CN103029927B (en) | 2012-12-10 | 2012-12-10 | Novel powder polyvinyl alcohol grain feeder and feeding process |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103332412A (en) * | 2013-07-17 | 2013-10-02 | 佳施加德士(苏州)塑料有限公司 | Stainless steel hopper |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201254610Y (en) * | 2008-08-07 | 2009-06-10 | 海宁洁宇环保设备有限公司 | Distributor for alumina powder |
| WO2009147567A2 (en) * | 2008-05-26 | 2009-12-10 | Moretto S.P.A. | A hopper structure |
| CN102029704A (en) * | 2010-10-30 | 2011-04-27 | 浙江德斯泰塑胶有限公司 | Method for preparing thick polyvinyl butyral (PVB) film by direct water cooling process |
| CN201935574U (en) * | 2010-12-08 | 2011-08-17 | 成都光华科技发展有限公司 | Quantitative particle feeding device |
-
2012
- 2012-12-10 CN CN201210529101.9A patent/CN103029927B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2009147567A2 (en) * | 2008-05-26 | 2009-12-10 | Moretto S.P.A. | A hopper structure |
| CN201254610Y (en) * | 2008-08-07 | 2009-06-10 | 海宁洁宇环保设备有限公司 | Distributor for alumina powder |
| CN102029704A (en) * | 2010-10-30 | 2011-04-27 | 浙江德斯泰塑胶有限公司 | Method for preparing thick polyvinyl butyral (PVB) film by direct water cooling process |
| CN201935574U (en) * | 2010-12-08 | 2011-08-17 | 成都光华科技发展有限公司 | Quantitative particle feeding device |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103332412A (en) * | 2013-07-17 | 2013-10-02 | 佳施加德士(苏州)塑料有限公司 | Stainless steel hopper |
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| CN103029927B (en) | 2015-07-01 |
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