CN103861802A - Sieving device of dry-process granulating machine - Google Patents
Sieving device of dry-process granulating machine Download PDFInfo
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- CN103861802A CN103861802A CN201410062605.3A CN201410062605A CN103861802A CN 103861802 A CN103861802 A CN 103861802A CN 201410062605 A CN201410062605 A CN 201410062605A CN 103861802 A CN103861802 A CN 103861802A
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Abstract
The invention discloses a sieving device of a dry-process granulating machine. The sieving device comprises a sieving barrel, a sieving disc and a powder receiving disc, wherein the barrel wall of the sieving barrel is provided with a feeding port, a fine-powder discharging port and a finished-product discharging port; the feeding port is arranged at the upper part of the sieving barrel; the finished-product discharging port is arranged at the lower part of the sieving barrel; the fine-powder discharging port is communicated with a negative pressure system; the sieving disc is arranged in the sieving barrel to separate the feeding port from the finished-product discharging port; when the sieving disc works, the up-down vibration is realized by a vibrator; the powder receiving disc is arranged under the sieving disc; the sieving disc and the powder receiving disc are connected to form a closed powder cavity for communication with the fine-powder discharging port; the disc surface of the sieving disc is in a downslope shape from the center to the periphery; the disc surface of the powder receiving disc is in an upslope shape from the center to the periphery. The sieving device is characterized in that the upslope-shaped disc surface of the powder receiving disc is formed by continuous connection of multi-stage steps, and the step surfaces of the steps are in a downslope shape with the direction being opposite to the upslope-shaped disc surface of the powder receiving disc. The sieving device disclosed by the invention has the advantages that the sieving effect is good, the sieving efficiency is high, the purity degree of finished particles is improved and the fine-powder rate of a finished product is controlled to below 4%.
Description
Technical field
The present invention relates to a kind of dry granulating machine, be specifically related to a kind of separating screen device of dry granulating machine.
Background technology
Dry granulating machine is applied to the production of grain products; mainly comprise the parts such as feeding device, drawing-in device, preforming device, particle device, whole grain device, separating screen device, wherein the effect of separating screen device is that semi-finished product hybrid particles is sub-sieved into fine powder (comprising fine grained) and qualified finished particle.At present, the dry granulating machine separating screen device on market, ubiquity sub-sieve effect is bad, point screen capacity is not high, and the degree of purity of finished particle is poor, and the more high deficiency of fine powder rate of finished product, particularly waves and contaminated environment dust in sub-sieve process.For solving the problems of the technologies described above, applicant has applied for that on May 23rd, 2013 patent No. is 201320285668.6, patent name is the utility model patent of " dry granulating machine separating screen device ", although above-mentioned patented technology has to a certain degree solved above-mentioned deficiency, but in above-mentioned patented technology in actual trial-manufacturing process, after finding to fall on powder-receiving disc through the fine powder of screen tray sieve aperture, can not be that (center of powder-receiving disc is near the import of fine powder discharging opening in direction of fall landing gathering to the center of powder-receiving disc with the vibration of powder-receiving disc, other position of this position and sub-sieve bucket inside has larger pressure reduction, fine powder could be siphoned away smoothly), but can creep towards contrary upward slope direction, oppositely overflow with qualified finished particle and mix through screen tray sieve aperture even, cause the technical goal of pursuing in patented technology not reach requirement.
Summary of the invention
In view of the deficiencies in the prior art, the technical problem to be solved in the present invention is to be to provide that a kind of sub-sieve is effective, point screen capacity is high, improves the degree of purity of finished particle, controls the separating screen device of the dry granulating machine of finished product fine powder rate below 4%.
For solving the problems of the technologies described above, the present invention takes following technical scheme to complete:
The separating screen device of dry granulating machine, comprise sub-sieve bucket, screen tray and powder-receiving disc, on the bucket wall of sub-sieve bucket, establish charging aperture, fine powder discharging opening and finished product discharging opening, charging aperture is located at the top of sub-sieve bucket, finished product discharging opening is located at the bottom of sub-sieve bucket, fine powder discharging opening and negative pressure system are connected, screen tray is located in sub-sieve bucket charging aperture and finished product discharging opening is separated, when screen tray work, up-down vibration is driven by vibrator, powder-receiving disc is located at screen tray below, forms sealing powder chamber and communicate with fine powder discharging opening after screen tray is connected with powder-receiving disc; The card of screen tray is descending shape from center toward surrounding, the card of powder-receiving disc is upward slope shape from center toward surrounding, it is characterized in that: the upward slope shape card of powder-receiving disc is connected continuously by multi-stage stairs and forms, and the terrace of step is and the rightabout descending shape of powder-receiving disc upward slope shape card.
Adopt after technique scheme, the present invention has overcome the technological deficiency that background technology Patent exists, realize sub-sieve effective, divide screen capacity high, improve the degree of purity of finished particle, control the technical goal of finished product fine powder rate below 4%, operation principle is: when separating screen device work, semi-finished product hybrid particles is fallen on screen tray from the top throat-fed of sub-sieve bucket, due to the vibration of screen tray, fine powder in semi-finished product hybrid particles can see through the sieve aperture of screen tray and fall on the step terrace of powder-receiving disc, along with powder-receiving disc carries out up-down vibration with vibrator, fine powder is creeped towards upward slope direction, so just passing through step one by one, assembles toward the center landing of powder-receiving disc fine powder, siphoned away smoothly until arrive the entrance location of close fine powder discharging opening, thereby reach purpose of design and requirement completely, after above-mentioned separating screen device carries out sub-sieve, finally only have few fine powder can arrive with finished particle the finished product discharging opening of sub-sieve bucket bottom.
As preferably, described screen tray is provided with two-layer up and down, and corresponding upper powder-receiving disc is established in the below of upper strata screen tray, and corresponding lower powder-receiving disc is established in the below of lower floor's screen tray, is provided with the material guiding plate of the material guiding lower floor screen tray by upper sieve riddle hole not between levels screen tray.Adopt after above-mentioned design, separating screen device can carry out twice sub-sieve to semi-finished product hybrid particles according to production requirement, sub-sieve better effects if.
For making separating screen device reach optimal sub-sieve effect, the technical parameter of screen tray and powder-receiving disc is chosen as: the downward grades of screen tray card is 2-10o, and the uphill gradient of powder-receiving disc card is 10-30o, and the downward grades of step terrace is 2-12o.
Accompanying drawing explanation
The present invention has following accompanying drawing:
Fig. 1 is structure chart of the present invention.
The specific embodiment
Accompanying drawing has represented technical scheme of the present invention and embodiment, further describes by reference to the accompanying drawings more each details and the operation principle thereof of embodiment below.
As shown in the figure, the separating screen device of dry granulating machine of the present invention, comprise sub-sieve bucket 9, screen tray 3 and powder-receiving disc 2, on the bucket wall of sub-sieve bucket 9, establish charging aperture 8, fine powder discharging opening 7 and finished product discharging opening 10, charging aperture 8, fine powder discharging opening 7 is located at the top of sub-sieve bucket 9, finished product discharging opening 10 is located at the bottom of sub-sieve bucket 9, fine powder discharging opening 7 is connected with negative pressure system, screen tray 3 is located at that sub-sieve bucket 9 is interior separates charging aperture 8 and finished product discharging opening 10, when screen tray 3 is worked, up-down vibration is driven by vibrator 1, the top of screen tray 3 is provided with the discharge tray 5 of the charging guiding screen tray 3 of charging aperture 8, powder-receiving disc 2 is located at screen tray 3 belows, described screen tray 3 is provided with two-layer up and down, corresponding upper powder-receiving disc is established in the below of upper strata screen tray, corresponding lower powder-receiving disc is established in the below of lower floor's screen tray, after being connected with powder-receiving disc 2, screen tray 3 forms sealing powder chamber 11, sealing powder chamber 11 communicates with fine powder discharging opening 7 by taking over 6, between levels screen tray 3, be provided with the material guiding plate 4 of the guiding of the material by upper sieve riddle hole lower floor screen tray not, the card of screen tray 3 is descending shape from center toward surrounding, downward grades is 2-10o, the card of powder-receiving disc 2 is upward slope shape from center toward surrounding, uphill gradient is 10-30o, the upward slope shape card of powder-receiving disc 2 also can be designed as other progression by eight grades of step 12() connect continuously and form, the terrace of step 12 is and the rightabout descending shape of powder-receiving disc upward slope shape card, and downward grades is 2-12o.
The present invention is work like this: semi-finished product hybrid particles is from charging aperture 8 chargings, after discharge tray 5, fall and on upper strata screen tray 3, carry out first and sieve, the material by upper sieve riddle hole can not fallen and on lower floor's screen tray, carry out second and sieve through material guiding plate 4, when the work of levels screen tray, is with action up-down vibration by vibrator 1, carrying out first while sieving, most of fine powder just separated and saw through upper strata screen tray 3 sieve aperture with finished particle is fallen on step 12 terraces of upper powder-receiving disc 2, along with upper powder-receiving disc 2 vibrates with vibrator 1, fine powder is creeped towards upward slope direction, so just passing through step 12 one by one, assembles toward the center landing of powder-receiving disc 2 fine powder, siphoned away smoothly until drop to import (lower port of the adapter 6) position near fine powder discharging opening, and after the second of same action sieves, the fine powder that finally only has fine powder rate to be no more than 4% only a few arrives the finished product discharging opening 10 of sub-sieve bucket 9 bottoms with finished particle.
Claims (3)
1. the separating screen device of dry granulating machine, comprise sub-sieve bucket, screen tray and powder-receiving disc, on the bucket wall of sub-sieve bucket, establish charging aperture, fine powder discharging opening and finished product discharging opening, charging aperture is located at the top of sub-sieve bucket, finished product discharging opening is located at the bottom of sub-sieve bucket, fine powder discharging opening and negative pressure system are connected, screen tray is located in sub-sieve bucket charging aperture and finished product discharging opening is separated, when screen tray work, up-down vibration is driven by vibrator, powder-receiving disc is located at screen tray below, forms sealing powder chamber and communicate with fine powder discharging opening after screen tray is connected with powder-receiving disc; The card of screen tray is descending shape from center toward surrounding, the card of powder-receiving disc is upward slope shape from center toward surrounding, it is characterized in that: the upward slope shape card of powder-receiving disc is connected continuously by multi-stage stairs and forms, and the terrace of step is and the rightabout descending shape of powder-receiving disc upward slope shape card.
2. the separating screen device of dry granulating machine according to claim 1; it is characterized in that: described screen tray is provided with two-layer up and down; corresponding upper powder-receiving disc is established in the below of upper strata screen tray; corresponding lower powder-receiving disc is established in the below of lower floor's screen tray, is provided with the material guiding plate of the material guiding lower floor screen tray by upper sieve riddle hole not between levels screen tray.
3. the separating screen device of dry granulating machine according to claim 1 and 2, is characterized in that: the downward grades of screen tray card is 2-10o, and the uphill gradient of powder-receiving disc card is 10-30o, and the downward grades of step terrace is 2-12o.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410062605.3A CN103861802B (en) | 2014-02-25 | 2014-02-25 | The separating screen device of dry granulating machine |
| US14/621,322 US9827571B2 (en) | 2014-02-25 | 2015-02-12 | Dry granulator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410062605.3A CN103861802B (en) | 2014-02-25 | 2014-02-25 | The separating screen device of dry granulating machine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103861802A true CN103861802A (en) | 2014-06-18 |
| CN103861802B CN103861802B (en) | 2015-10-28 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410062605.3A Expired - Fee Related CN103861802B (en) | 2014-02-25 | 2014-02-25 | The separating screen device of dry granulating machine |
Country Status (1)
| Country | Link |
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| CN (1) | CN103861802B (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN87100237A (en) * | 1987-02-28 | 1988-11-16 | 上海建筑材料工业学院 | Screw grading oscillating screen |
| CN2625058Y (en) * | 2003-06-27 | 2004-07-14 | 新乡市东振机械有限公司 | Rotor vibrating screen tray |
| GB2399515A (en) * | 2001-03-28 | 2004-09-22 | Varco Int | A screen assembly |
| JP2006007022A (en) * | 2004-06-23 | 2006-01-12 | Mitsubishi Heavy Ind Ltd | Classifier, classifying method of incineration ash and classifying sieve |
| CN203227606U (en) * | 2013-05-23 | 2013-10-09 | 浙江明天机械有限公司 | Sieving device of dry-method granulating machine |
| CN203695403U (en) * | 2014-02-25 | 2014-07-09 | 浙江明天机械有限公司 | Screening device of dry granulator |
-
2014
- 2014-02-25 CN CN201410062605.3A patent/CN103861802B/en not_active Expired - Fee Related
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN87100237A (en) * | 1987-02-28 | 1988-11-16 | 上海建筑材料工业学院 | Screw grading oscillating screen |
| GB2399515A (en) * | 2001-03-28 | 2004-09-22 | Varco Int | A screen assembly |
| CN2625058Y (en) * | 2003-06-27 | 2004-07-14 | 新乡市东振机械有限公司 | Rotor vibrating screen tray |
| JP2006007022A (en) * | 2004-06-23 | 2006-01-12 | Mitsubishi Heavy Ind Ltd | Classifier, classifying method of incineration ash and classifying sieve |
| CN203227606U (en) * | 2013-05-23 | 2013-10-09 | 浙江明天机械有限公司 | Sieving device of dry-method granulating machine |
| CN203695403U (en) * | 2014-02-25 | 2014-07-09 | 浙江明天机械有限公司 | Screening device of dry granulator |
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| CN103861802B (en) | 2015-10-28 |
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| C14 | Grant of patent or utility model | ||
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Granted publication date: 20151028 Termination date: 20170225 |