CN1161181C - Jet drive fluidized bed pelletizing device with multiple jet drive units - Google Patents
Jet drive fluidized bed pelletizing device with multiple jet drive units Download PDFInfo
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- CN1161181C CN1161181C CNB02131280XA CN02131280A CN1161181C CN 1161181 C CN1161181 C CN 1161181C CN B02131280X A CNB02131280X A CN B02131280XA CN 02131280 A CN02131280 A CN 02131280A CN 1161181 C CN1161181 C CN 1161181C
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- jet drive
- spouted
- self
- spray head
- shower nozzle
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Abstract
The present invention discloses a jet drive fluidized bed pelletizing device with multiple jet drive units, which is mainly composed of a shell body and a plurality of jet drive units composed of erect partition boards in the shell body, wherein each jet drive unit is provided with a gas distributing board whose center is provided with a self-cleaning pressure spray head or a self-cleaning double-liquid spray head; a centerline is arranged above the spray head and is composed of a flow guiding barrel superposed with the centerline of the spray head. The flow guiding barrel is used for dividing all jet drive units into a jet drive area and an annular area; the area rate of the jet drive area and the annular area is 1 to (2 to 5). Ventilating holes of the annular area of the distribution board are oblique holes; ventilating holes of the jet drive area are erect holes. The present invention has the advantages that the device has simple structure; the flow guiding barrel arranged on each jet drive unit effectively reduces particle back mixing, enhances product uniformity, and reduces material back quantity. The self-cleaning spray head is adopted; a nozzle of the spray head does not hang material or is clogged. The distributing board of the oblique holes is favourable for preferably discharging large particles for ensuring productive continuity.
Description
Technical field
The present invention relates to a kind of spouted fluidized bed nodulizer of a plurality of spouted unit, belong to the prilling granulator technology.
Background technology
At present, be the nodulizer that parent nucleus is implemented spouted fluidized growth granulation with crystal grain, its structure mainly is made of gas distribution grid in housing and the housing and shower nozzle.The nodulizer of structure like this, the deficiency of two aspects of existence, the one, air-teturning mixed phenomenon is serious in the grain granulation device, causes product granularity uniformity variation, and returning charge reaches more than 50%; The 2nd, the shower nozzle spout is easy to bridging, influences the normal atomizing of shower nozzle, causes shower nozzle to stop up, and is difficult to guarantee the serialization of producing.
Summary of the invention
The objective of the invention is to propose a kind of spouted fluidized bed nodulizer of a plurality of spouted unit, this nodulizer can prevent the back-mixing of particle in nodulizer effectively, can reduce the returning charge amount.The not bridging of shower nozzle spout is difficult for stopping up, and product granularity is even.
The present invention is realized by following technical proposals, the main spouted fluidized bed nodulizer of a plurality of spouted unit that constitute by the vertical clapboard in housing, the housing, it is characterized in that, each spouted unit is by gas distribution grid, the plate center is provided with the pressure nozzle of self-clean type or the two-fluid shower nozzle of self-clean type, described self-clean type pressure nozzle is the housing that a band awl mouth is set at the shell of pressure nozzle, forms the annular airflow chamber between the two housings; Described self-clean type two-fluid shower nozzle is that the outermost layer housing of a band awl mouth is set at the outer casing of two-fluid shower nozzle, and offers passage on outer casing; The guide shell that center line and shower nozzle central lines are set above shower nozzle constitutes.Guide shell is divided into spouted district and annulus with each spouted unit.Spouted district is 1: 2～5 with the ratio of annulus area.
The height of above-mentioned guide shell is 400～1200mm.
The passage of offering on the above-mentioned gas distribution grid, (spouted district) offers vertical hole in the zone of guide shell bottom surface projection, and remainder (annulus) is offered the inclined hole that is 30～75 ° angle with level, and inclined hole helps oarse-grained discharge.Vertically the percent opening of hole and inclined hole is respectively 7～20% and 2～6%.
The advantage of invention is that device structure is simple, and the guide shell of spouted unit setting has effectively reduced the back-mixing of particle, has improved the uniformity of product, has reduced the returning charge amount.Adopted self-cleaning shower nozzle, the not bridging of shower nozzle spout is not stopped up, and has adopted the inclined hole distribution grid, helps oarse-grained preferential discharge, has guaranteed the continuity of producing.
Description of drawings
Fig. 1 is a structural representation of the present invention.
Fig. 2 is the self-clean type two-fluid nozzle structure schematic diagram that spouted unit adopts.
Fig. 3 is the self-clean type pressure nozzle structural representation that spouted unit adopts.
1 is the nodulizer housing among the figure, and 2 is gas distribution grid, and 3 is shower nozzle, 4 is guide shell, and 5 is that grain is planted charging aperture, and 6 is vertical clapboard, 7 is expanding reach, and 8 are the tail gas outlet, and 9 is discharging opening, 10 is air chamber, and 11 is air duct, and 12 is material liquid flowing channel, 13 is the atomization gas runner, 14 is self-cleaning vent hole, and 15 is self-cleaning flow channel, and 16 is the spiral core print.
The specific embodiment
The present invention is to use the manufacturing with the pelletiod anhydrous calcium chloride., and realized industrial operation.In this device, each spouted unit is equipped with φ 150 * 500mm guide shell, and annulus is 3: 1 with spouted district area ratio, and the percent opening ratio is 1: 3.Annulus inclined hole and horizontal sextant angle are 60 °.The nozzle that adopts is a self-cleaning two-fluid spray nozzle of the present invention.Use the pelletiod calcium chloride that the present invention makes, evenly (3～4mm), the returning charge amount is less than 30% for product granularity.This device more than the operation 72h, is checked shower nozzle continuously, and the shower nozzle spout does not have the bridging phenomenon, and nearly 1 year of this device operation is not found because of shower nozzle stops up spouted fluidized bed normally to be moved.
Claims (3)
1. a plurality of spouted unit spouted fluidized bed nodulizer, this device mainly is made of vertical clapboard in housing, the housing, it is characterized in that: each spouted unit is by gas distribution grid, the plate center is provided with the pressure nozzle of self-clean type or the two-fluid shower nozzle of self-clean type, described self-clean type pressure nozzle is the housing that a band awl mouth is set at the shell of pressure nozzle, forms the annular airflow chamber between the two housings; Described self-clean type two-fluid shower nozzle is that the outermost layer housing of a band awl mouth is set at the outer casing of two-fluid shower nozzle, and offers passage on outer casing; The guide shell that center line and shower nozzle central lines are set above shower nozzle constitutes, and guide shell is divided into spouted district and annulus with each spouted unit, and spouted district is 1: 2～5 with the ratio of annulus area.
2. by the described spouted fluidized bed nodulizer of claim 1, it is characterized in that: the height of guide shell is 400～1200mm.
3. by the described spouted fluidized bed nodulizer of claim 1, it is characterized in that: the passage of offering on the gas distribution grid, in the spouted district of guide shell bottom surface projection, offer vertical hole, the annulus of remainder is offered the inclined hole that is 30～75 ° angle with level, and vertically the percent opening of hole and inclined hole is respectively 7～20% and 2～6%.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB02131280XA CN1161181C (en) | 2002-09-24 | 2002-09-24 | Jet drive fluidized bed pelletizing device with multiple jet drive units |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB02131280XA CN1161181C (en) | 2002-09-24 | 2002-09-24 | Jet drive fluidized bed pelletizing device with multiple jet drive units |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1408469A CN1408469A (en) | 2003-04-09 |
| CN1161181C true CN1161181C (en) | 2004-08-11 |
Family
ID=4746623
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB02131280XA Expired - Fee Related CN1161181C (en) | 2002-09-24 | 2002-09-24 | Jet drive fluidized bed pelletizing device with multiple jet drive units |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1161181C (en) |
Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100464829C (en) * | 2004-12-14 | 2009-03-04 | 天津天士力制药股份有限公司 | Fluidization and spray-drying pelleting machine |
| CN101249401B (en) * | 2007-11-29 | 2012-05-30 | 常州先锋干燥设备有限公司 | Granulator |
| CN101698145B (en) * | 2009-11-11 | 2012-09-26 | 王新月 | Fluidized bed guniting granulation continuous production method |
| CN103028343B (en) * | 2012-12-18 | 2015-07-29 | 天津大学 | A kind of production method of pelletoidal calcium chloride dihydrate |
| CN103420725B (en) * | 2013-08-07 | 2015-11-25 | 中国农业科学院农业资源与农业区划研究所 | A kind of spouted bed of many shower nozzles for continuous production of coated controlled release fertilizer material |
| CN104418334B (en) * | 2013-09-04 | 2018-02-27 | 东莞东阳光科研发有限公司 | A kind of chlorination system and method for producing glass sand |
| CN104587892A (en) * | 2014-12-15 | 2015-05-06 | 深圳市信宜特科技有限公司 | Bottom spraying and air intake control structure of fluidized bed |
| CN106268399A (en) * | 2016-08-11 | 2017-01-04 | 哈尔滨工业大学 | A kind of for doing, wet granular mixing multi-port spouted fluidized bed |
-
2002
- 2002-09-24 CN CNB02131280XA patent/CN1161181C/en not_active Expired - Fee Related
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| Publication number | Publication date |
|---|---|
| CN1408469A (en) | 2003-04-09 |
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