CN100345618C - Continuous powdery humidifying contrifugal granulator and process thereof - Google Patents
Continuous powdery humidifying contrifugal granulator and process thereof Download PDFInfo
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- CN100345618C CN100345618C CNB2005100124876A CN200510012487A CN100345618C CN 100345618 C CN100345618 C CN 100345618C CN B2005100124876 A CNB2005100124876 A CN B2005100124876A CN 200510012487 A CN200510012487 A CN 200510012487A CN 100345618 C CN100345618 C CN 100345618C
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Abstract
The present invention relates to a continuous powdery humidifying centrifugal granulator and a process thereof, which belongs to the technical field of powdery granulation. The granulator is composed of a powdery conveyer, a water or adhesive conveyer, a powdery humidifying tower body, a centrifugal granulator, etc., wherein the powdery conveyer and the water or adhesive conveyer are positioned on the side surface of the humidifying tower body; the centrifugal granulator composed of a stationary ring, a material outlet, a transmission device and an air seal device is connected with the lower part of the humidifying tower body into a whole; the material outlet is connected with a material inlet of a drying device; a dust removal device, the humidifying tower body and the drying device are connected by a pipeline; a water measurement and control instrument is positioned on the end of the material outlet. The present invention has the advantages of continuous production at ordinary temperature, rate granulation high and reasonable grain composition. Grains are spherical and solid and have high true sphericity. The present invention also has the advantages of good flow performance, automatic control and stable product quality. Negative pressure production is adopted for a whole line without environmental pollution; powder is recovered for continuous granulation; the continuous powdery humidifying centrifugal granulator saves energy and water and has low production cost. The present invention is widely used for powdery granulation production for various industries such as building material, medicine, chemical engineering, food, ceramics, etc.
Description
Technical field
The present invention relates to a kind of microballoon prilling and equipment, particularly relate to a kind of with behind the dry powder body raw material humidification, continuous powdery humidifying centrifugal granulating equipment and technology.
Background technology
At present, powder granulation technology be the main branch that handles of powder body process along with environmental protection demand and Automation of Manufacturing Process degree improve, the powder product spheroidizing has become the inexorable trend of world's powder post-processing technology.Existing powder handling technology can be divided into fluidized granulation, fluidized bed prilling, stirring-granulating, extruder grain, spray drying granulation, fusing granulation.Technology for the microballoon granulation mainly is spray drying granulation and fluidized bed prilling, and spray drying granulation technology belongs to wet granulation process, the big energy consumption height of equipment investment.The fluidized bed prilling technology is the humidification granulation, and its weak point is, discontinuity production, and granule strength is low, proper sphere degree and poor surface smoothness.
Summary of the invention
The technical problem to be solved in the present invention provides that a kind of equipment investment is little, energy-conservation, water saving, non-environmental-pollution, can be widely used in continuous powdery humidifying centrifugal granulating equipment and technology that multiple industry powder granulation such as building materials, medicine, chemical industry, food, pottery, refractory material is produced.
The technical scheme that realizes the foregoing invention purpose is: a kind of continuous powdery humidifying centrifugal granulating equipment, and it comprises that the quantitative wind of powder send device, water or binding agent quantitative conveyer; Drying device, dust arrester, complete machine switch board, its structural feature is: the quantitative wind of powder send device, water or binding agent quantitative conveyer lay respectively at the side of humidification tower body, centrifugal granulating device and the humidification tower body bottom be made up of rotating ring, stationary ring, discharging opening, transmission, air seal set connect as one, discharging opening links to each other with the charging aperture of drying device, dust arrester, drying device are connected with the humidification tower body with pipeline, and the moisture measurement and control instrument is positioned at discharge port end.
A kind ofly carry out the technology of continous way humidification centrifugal granulating with the said equipment, it is undertaken by following flow process:
A, general mixed nonmetal raw material according to a certain ratio are ground into qualified raw material fine powder through ultrafine crusher again after thick, intermediate crusher are pulverized;
B, elevator are sent fine powder into feed bin, send device to send into the humidification tower body through the quantitative wind of powder, in the time of by the atomising device rotary-atomizing, water or binding agent are sent into humidification tower body intrinsic fogization by water or binding agent quantitative conveyer, form little fog particles behind the powder humidification, combine with the powder particle and form microparticle, microparticle drops down onto the tower body hypocone, discharged continuously by discharging opening, enter drying device and carry out drying, finished particle enters the screening operation continuously;
C, under negative pressure, after the powder particle, the powder particle in the drying device that is not agglomerated into particle in the humidification tower body collected by dust arrester, enter the quantitative wind of powder and send device granulation again.
Adopt technique scheme the present invention with Isoquant wet spray drying and granulating technological equipment relatively, have energy-conservation 60%, water saving 80%, save remarkable advantages such as taking up an area of space 70%.Production of the present invention is to produce continuously at normal temperatures, is applicable to diameter granule granulation below 2 millimeters, the granulating rate height, and grain composition is reasonable; Grain shape is spherical solid proper sphere degree height, has good flowing property.The whole line of the present invention adopts negative pressure to produce non-environmental-pollution, reclaims powder granulation more continuously, the production efficiency height.Owing to adopt near infrared moisture observing and controlling system, constant product quality.The technological process of this process characteristic is simple, powdery humidifying even, granule cooperates reason, and light, mechanical, electrical integrated automatic control can be adjusted, realized to granulating rate height, granule strength and particle diameter as requested at random, can realize discontinuity production flexibly as required.Through ISTIC Research ﹠ Traning Center's update search, not seeing has the report identical with technical solution of the present invention.
Description of drawings
Fig. 1 is an overall structure schematic diagram of the present invention.
Fig. 2 is a process chart of the present invention.
The specific embodiment
The present invention will be further described below in conjunction with the specific embodiment.
Referring to accompanying drawing 1, the present invention send device 15, water or bonding agent atomising device 7, centrifugal reinforcement prilling granulator 14 etc. to form by humidification tower body 9, the quantitative wind of powder.The top of humidification tower body 9 is cylindrical, and the bottom is conical.The side that the quantitative wind of powder send device 15 and water or binding agent quantitative conveyer 6 to lay respectively at humidification tower body 9 is connected with the top of humidification tower body 9.The inside on humidification tower body 9 tops is provided with water or binding agent atomising device 7 and powder atomising device 8, the bottom of humidification tower body 9 and centrifugal reinforcement prilling granulator 14 connect as one, the outside is provided with hopper wall vibrator 19, be provided with the following awl scraper 20 that prevents sticking wall in the conically shaped body, lower end at humidification tower body 9 is provided with discharging opening, discharging opening is positioned on the belt conveyor, the top of discharging opening is provided with moisture measurement and control instrument 11, the probe of moisture measurement and control instrument 11 is positioned at the top of discharging opening end, and moisture measurement and control instrument 11 is connected with conveying control device.The belt conveyor of conveying control device passes drying device, and dust arrester 10 usefulness pipelines are connected with the bottom of humidification tower body 9, and drying device 13, dust arrester 10 usefulness pipelines are connected with humidification tower body 9, forms whole line negative pressure production dust collecting system.
The drying device 13 of large-tonnage humidification centrifugal granulating adopts fluidized bed drying, and the drying device 13 of little output adopts microwave drying.
Centrifugal reinforcement prilling granulator 14 is made up of rotating ring, stationary ring, discharging opening, transmission, air seal set.
Carry out the technology of continous way humidification centrifugal granulating referring to accompanying drawing 2 with said apparatus, undertaken by following step, mixed according to a certain ratio nonmetal raw material is sent into slightly, intermediate crusher 1 is pulverized, slightly, middle pulverizer 1 is by pulverizing switch board 18 controls, raw material after the pulverizing enters vibratory feed unit 3 through elevator 2, collect after conveying worm 17 enters elevator 16 by powder collector 5 through the raw material fine powder that ultrafine crusher 4 is pulverized, fine powder send device 15 to enter humidification tower body 9 by powder atomising device 8 rotary-atomizings through the quantitative wind of powder, in the time of rotary-atomizing, Pei Zhi water or binding agent are entered in the humidification tower body 9 by water or binding agent quantitative conveyer 6 and form little fog particles through water or binding agent atomising device 7 by a certain percentage, combine with powder particle encounter, utilize the tension force of hydrone to be agglomerated into the microparticle of loose wet inside and dry outside, microparticle drops down onto the tower body hypocone and rolls to increase on the inclined-plane and enter centrifugal reinforcement prilling granulator 14 automatically, the particle of loose wet inside and dry outside is under action of centrifugal force, in rotating ring and stationary ring intercropping eddying motion, sharp impacts friction between particle, density is improved, there is the more smooth particle of certain proper sphere kilsyth basalt face under action of centrifugal force, to enter drying device 13 by the continuous discharge of discharging opening automatically and carries out drying, best granulation water value according to the different material setting, near infrared moisture measurement and control instrument 11 auto-control water or binding agent quantity delivered are guaranteed the granulation steady quality.Drying device 13 dried finished products as required, configurable near infrared moisture measurement and control instrument 11 automatic measuring and controlling moisture content of finished products.The equipment that output is big must water distribution divide measurement and control instrument 11, and what output was little can dispose the moisture measurement and control instrument.Finished particle enters the screening operation continuously and sieves.Under negative pressure, after not being agglomerated in the powder particle, drying device of particle 13 powder particle in the humidification tower body 9 and being collected by dust arrester 10, the quantitative wind of powder that enters the powder feedway send device granulation again.Granulation process is by 12 controls of granulation switch board.
Claims (4)
1, a kind of continuous powdery humidifying centrifugal granulating equipment, it comprises that the quantitative wind of powder send device, water or binding agent quantitative conveyer; Drying device, dust arrester, complete machine switch board, it is characterized in that: the quantitative wind of powder send device, water or binding agent quantitative conveyer lay respectively at the side of humidification tower body, centrifugal granulating device and the humidification tower body bottom be made up of rotating ring, stationary ring, discharging opening, transmission, air seal set connect as one, discharging opening links to each other with the charging aperture of drying device, dust arrester, drying device are connected with the humidification tower body with pipeline, and the moisture measurement and control instrument is positioned at discharge port end.
2, continuous powdery humidifying centrifugal granulating equipment according to claim 1 is characterised in that, humidification tower body top is cylindrical, and the inside on this humidification tower body top is provided with water or binding agent atomising device and powder atomising device, and the outside is provided with hopper wall vibrator; The bottom of this humidification tower body is conical, and its inside is provided with scraper, and the outside is provided with the dust discharge outlet.
3, according to the described continuous powdery humidifying centrifugal granulating of claim 1 equipment, be characterised in that the moisture measurement and control instrument is connected with conveying control device.
4, a kind ofly carry out the technology of continuous powdery humidifying centrifugal granulating, it is characterized in that it is undertaken by following step with the equipment of claim 1:
A, general mixed nonmetal raw material according to a certain ratio are ground into qualified raw material fine powder through ultrafine crusher again after thick, intermediate crusher are pulverized;
B, elevator are sent fine powder into feed bin, send device to send into the humidification tower body through the quantitative wind of powder, in the time of by the atomising device rotary-atomizing, water or binding agent are sent into humidification tower body intrinsic fogization by water or binding agent quantitative conveyer, form little fog particles behind the powder humidification, combine with the powder particle and form microparticle, microparticle drops down onto the tower body hypocone, discharged continuously by discharging opening, enter drying device and carry out drying, finished particle enters the screening operation continuously;
C, under negative pressure, after the powder particle, the powder particle in the drying device that is not agglomerated into particle in the humidification tower body collected by dust arrester, enter the quantitative wind of powder and send device granulation again.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2005100124876A CN100345618C (en) | 2005-04-29 | 2005-04-29 | Continuous powdery humidifying contrifugal granulator and process thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2005100124876A CN100345618C (en) | 2005-04-29 | 2005-04-29 | Continuous powdery humidifying contrifugal granulator and process thereof |
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| Publication Number | Publication Date |
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| CN1712119A CN1712119A (en) | 2005-12-28 |
| CN100345618C true CN100345618C (en) | 2007-10-31 |
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| Application Number | Title | Priority Date | Filing Date |
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| CNB2005100124876A Expired - Fee Related CN100345618C (en) | 2005-04-29 | 2005-04-29 | Continuous powdery humidifying contrifugal granulator and process thereof |
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Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101885612B (en) * | 2010-06-22 | 2012-08-15 | 罗明坚 | Equipment for preparing ceramic powder by humidifying dry powder |
| CN106890702A (en) * | 2017-04-22 | 2017-06-27 | 长葛市怀瑞蜂产品有限公司 | A kind of beeswax separating twice device |
| CN108524263A (en) * | 2018-03-29 | 2018-09-14 | 青岛朗格生物技术有限公司 | A kind of production system of net cage sea cucumber granules material |
| CN109867528A (en) * | 2019-04-18 | 2019-06-11 | 咸阳陶瓷研究设计院有限公司 | A kind of technique improving ceramic powder non-slurry pelletizing efficiency |
| CN114229485A (en) * | 2021-12-23 | 2022-03-25 | 沈阳华控科技发展有限公司 | PVC (polyvinyl chloride) drying bed powder conveying device and control method |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2401264Y (en) * | 1999-11-26 | 2000-10-18 | 尹贵玉 | Dry humidifying centrifugal intensified granulator set |
| CN2407826Y (en) * | 2000-03-03 | 2000-11-29 | 尹贵玉 | Wetting pellitizer |
| CN2688370Y (en) * | 2004-02-25 | 2005-03-30 | 尹贵玉 | Double horizontal rotating centrifugal comminutor |
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2005
- 2005-04-29 CN CNB2005100124876A patent/CN100345618C/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2401264Y (en) * | 1999-11-26 | 2000-10-18 | 尹贵玉 | Dry humidifying centrifugal intensified granulator set |
| CN2407826Y (en) * | 2000-03-03 | 2000-11-29 | 尹贵玉 | Wetting pellitizer |
| CN2688370Y (en) * | 2004-02-25 | 2005-03-30 | 尹贵玉 | Double horizontal rotating centrifugal comminutor |
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| CN1712119A (en) | 2005-12-28 |
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