CN2673491Y - Buffer internal rotating isobaric urea granulating nozzle - Google Patents
Buffer internal rotating isobaric urea granulating nozzle Download PDFInfo
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- CN2673491Y CN2673491Y CN 200320108649 CN200320108649U CN2673491Y CN 2673491 Y CN2673491 Y CN 2673491Y CN 200320108649 CN200320108649 CN 200320108649 CN 200320108649 U CN200320108649 U CN 200320108649U CN 2673491 Y CN2673491 Y CN 2673491Y
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- sprayer
- isobaric
- nozzle
- rotation
- buffer
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Abstract
The utility model discloses a buffer internal rotating isobaric urea granulating nozzle, which comprises a nozzle body with spraying holes, wherein, the upper part of the nozzle body is provided with a buffer chamber in which a buffer body is installed, and the buffer body is provided with spraying small holes. The middle part of the nozzle body is fixedly provided with a flow nozzle through a connecting plate, the lower part of the nozzle body is provided with an annular liquid distributing isobaric applicator, and the center of the nozzle body is provided with a diversion rod. The upper end of the diversion rod penetrates through the flow nozzle to be fixed with the buffer body, and the lower end of the diversion rod is fixed at the bottom of the nozzle body. The utility model solves the uneven problem of the liquid level at the lower part of the inner wall of the nozzle head and the upper part of the inner wall of the nozzle head, the speed and the diameter of a fluid column are clear, the effective spraying area is added, the forming condition of particles is optimized, the cooling environment of the particles is improved, the heat exchange efficiency is improved, and the utility model improves the appearance and the intrinsic quality of the particles in the whole. The buffer internal rotating isobaric urea granulating nozzle is easy to combine in the existing granulating equipment for tower type chemical fertilizer.
Description
Technical field
The utility model relates to a kind of tower carbamide granulation equipment, especially relates to a kind of tower carbamide granulation rotary nozzle.
Background technology
The tower granulation of urea generally is the top of molten urea solution being delivered to granulation tower by Melting pump, be input under actuator drives as concentric circles and rotatablely move in the prilling spry, urine is rotated with shower nozzle, and through the ejection of the spray orifice of shower nozzle inwall, be sprayed in the granulation tower, contact with the fluid column surface of ejection by the cold air stream that enters at the bottom of the tower is reverse, because the relation of surface tension of liquid, jet breakup also obtains the similar drop of size, in granulation tower, land in the air, fall under gravity that fused mass solidifies gradually in the process, cooling becomes the ball granular solid that is bordering on normal temperature from initial liquid state.The kind of traditional sprinkler heads is more, hollow cylinder or hollow cone that form and structure are made by resistant material, circumference has incomplete same little spray orifice, fused solution enters spray chamber by the shower nozzle top, liquid stream at first rushes at the bottom, flow along circumferential the going up of shower nozzle inwall by the bottom then, and constantly spray by shower nozzle inwall circumference spray orifice, when urine constantly feed enter shower nozzle and spray, the liquid layer thickness of shower nozzle bottom is bigger, consequently pressure imbalance about the liquid layer line occurs spraying and interlocks, hollow, dust, the drop temperature height sprays the humping and needle pattern phenomenon of cross machine directional consistency profile.
The course of work and granulation mechanism according to the tower granulation shower nozzle; to the prilling spry characteristics of traditional design and the deficiency of existence; many people have proposed improvement; as adopt inclined hole and screw type spray orifice to change the arrangement of spray nozzle; feeding device is provided with the top feed in the shower nozzle; or bottom feed and vertical sub-material and the horizontal sub-material of differential change the variation that liquid distributes again in the shower nozzle.CN87103117B discloses a kind of rotary spray jets of conical pelletizer as the Chinese patent specification, has proposed a kind of a kind of differential cross-feeding structure that is provided with in shower nozzle, to improve the sprinkling situation; No matter but in the inner vertical and horizontal sub-material that adopts of shower nozzle, no matter adopt branch prescription formulas such as central feeding, side-fed, all can not fundamentally solve the pressure balance of shower nozzle inwall top and the bottom, promptly be unfavorable for the final aggregate velocity of jet of urine, the Density Distribution and the particle build environment that also are unfavorable for the tower cross section, this is the unreasonable part that existing shower nozzle is deposited.
Summary of the invention
The utility model proposes the isobaric urea granulation sprayer of rotation in a kind of buffering, solve the uneven problem of shower nozzle inwall top and the bottom liquid level, reach pressure balance, the speed of clear and definite fluid column and diameter, increased effective sprinkling zone, optimize the formation condition of particle, improve the cooler environment of particle and improve heat exchange efficiency, integral body is improved the outward appearance and the interior quality of particle.
The isobaric urea granulation sprayer of rotation comprises the sprayer body that has spray orifice in a kind of buffering, and the top of sprayer body is provided with surge chamber, and buffer body is installed in the surge chamber, and the spray aperture is arranged on the buffer body; A flow nozzle is fixed by connecting plate in the sprayer body middle part; The sprayer body bottom is provided with the isobaric uniform device of annular separatory, and the sprayer body center is provided with diversion rod, and the upper end of diversion rod passes flow nozzle and buffer body is fixed, and the lower end is fixed on the sprayer body bottom.
Described surge chamber is provided with the insulation interlayer outward.
Described buffer body is hollow cone or hollow truncate circular cone, is fixed on the surge chamber center by gusset.
The cone angle of the circular cone of described buffer body is 30 °-60 °, and wall thickness is the 1-10 millimeter.
The truncate polygonal hollow cone that the isobaric uniform device of described annular separatory is formed for several inequilateral awl sheets, the awl sheet is fixed in the sprayer body by axle, awl sheet lower shaft on the awl sheet, and the moving angle of row is along each 45 ° in contrary direction.
Described awl sheet surface is plane or male and fomale(M﹠F).
8 °-15 ° of the vertical monolateral angles of described awl sheet, awl sheet thickness 1-10 millimeter.
Described awl sheet quantity is the 6-12 sheet.
Described diversion rod surface is provided with spiral ring type fanning strip.
The utility model compared with the prior art, have following characteristics: when molten urea solution is transported to granulation tower jacking granulation rotary nozzle by Melting pump before, generally have 0.03-0.1MPa pressure, rush at surge chamber from feed opening, reduce pressure by buffer body, spray to annular separatory and rotate isobaric uniform zone, urine sprays in the sprayer body towards the angle that injection stream constitutes, make the annular separatory that is provided with in the sprayer body rotate isobaric uniform device and play effect, liquid stream from top to bottom branches in the annular hollow cone of being arranged by the awl sheet with diversion rod, because the awl sheet is with the effect of liquid stream revolving force, it is angle at 45, or can accompany greater than 45 ° angle, make liquid flow to sprayer body inwall spray orifice in an orderly manner from the toroidal helical runner between awl sheet and the awl sheet, prevented that promptly liquid directly is flushed to the shock wave that the sprayer body inwall is produced, reached hydro-cushion simultaneously, liquid layer is consistency of thickness up and down, guide fused solution into sprayer body inwall top and the bottom with the centrifugal even action that rotatablely moves, and constantly stably be sprayed in the tower by the aperture of sprayer body inwall circumferential arrangement.Owing to adopted buffering moist closet, annular separatory to rotate structures such as isobaric uniform device, the spray orifice surface crystallization of both having avoided the urine temperature to descend and having produced, need clean the parking that is brought and influence production, fundamentally solved simultaneously sprayer body inwall top and the bottom liquid level pressure imbalance, avoid the humping and needle pattern of sprinkling cross machine directional consistency profile and influenced effective sprinkling zone, therefore improved tower diameter utilization rate and heat exchanger effectiveness; Reduced the particle drop temperature; Reduce dust and hollow.
Description of drawings
Fig. 1 is the utility model structural representation;
Fig. 2 be among Fig. 1 B-B to generalized section.
Reference numeral: 1-comminutor drive sleeve 2-adpting flange 3-surge chamber 4-insulation interlayer 5-buffer body 6-gusset 7-flow nozzle 8-connecting plate 9-annular separatory rotates under the isobaric uniform device 10-diversion rod 11-awl sheet lower shaft 12-that axle 17-goes up location-plate 18-awl sheet on the location-plate 13-spiral ring type fanning strip 14-sprayer body 15-spray orifice 16-awl sheet
The specific embodiment
As Fig. 1, the isobaric urea granulation sprayer of rotation in a kind of buffering, be installed on the comminutor drive sleeve 1 at granulation tower top, by connect sending out blue 2 sprayer body 14 is connected with comminutor drive sleeve 1, the insulation interlayer 4 of surge chamber 3, surge chamber 3 outsides, connecting plate 8 are black box, are provided with buffer body 5 in the surge chamber 3; Flow nozzle 7 is installed in connecting plate 8 centers, the annular separatory rotates isobaric uniform device 9 and is installed in sprayer body 14 bottoms, diversion rod is installed in sprayer body 14 centers, it is fixing with buffer body 5 that flow nozzle 7 is passed in the upper end, the lower end is fixed on the following location-plate 12 of sprayer body 14, sprayer body 14 is coaxial fixing with connecting plate 8, has spray orifice 15 on the sprayer body 14.Diversion rod 10 is cylinder or hollow cylinder, and mountable have a spiral ring type fanning strip 13, arranges face-to-face.
The truncate polygonal hollow cone that the isobaric uniform device 9 of annular separatory is formed for several inequilateral awl sheets 18, the surface of awl sheet 18 is concave-convex type or plane, 8 °-15 ° of the vertical monolateral angles of awl sheet, awl sheet thickness 1-10 millimeter, awl sheet quantity 6-12 sheet, awl sheet 18 by axle 16, awl sheet lower shaft 11 on the awl sheet, go up location-plate 17, location-plate 12 is fixed in the sprayer body down, the moving angle of row be along respectively 45 ° in contrary direction.Between awl sheet and the awl sheet is the toroidal helical runner, and the awl sheet has a mutual positioner up and down.Make liquid flow to sprayer body inwall spray orifice in an orderly manner from the toroidal helical runner between awl sheet and the awl sheet, prevented that then liquid from directly impacting on the sprayer body inwall, hydro-cushion this moment, liquid layer is consistency of thickness up and down, guide fused solution into sprayer body inwall top and the bottom with the centrifugal even action that rotatablely moves, and constantly stably be sprayed in the tower by the aperture of sprayer body inwall circumferential arrangement.
By method of the present utility model, can improve the tower diameter utilization rate, make Φ 9m granulation tower strengthen ability and increase particle diameter, and make that sticking tower wall obtains effective spray area under the situation that load increases,, load constant at tower diameter and drop (tower height) increase, in the same landing time, the particle tower exit temperature reduces 6-9 ℃, and average grain diameter 1.7mm has solved the inadequacy that Φ 9m tower ability enhancement and particle increase basically.Make by buffering that annular separatory rotates suitably orientation pendulum mantle sheet angle in the sprayer body, the effect that can make full use of toroidal helical stream is controlled the well-distributed pressure of the inner liquid level of sprayer body to every row's spray orifice, thereby Density Distribution scope in the band is sprayed in control reliably.
The utility model structure is arranged in the sprayer body, is easy to be combined in the existing tower fertilizer granulation equipment that is used for.
Technological parameter and result during the test run of concrete stable state:
1. prilling condition:
Granulation tower internal diameter Φ 9m, effective depth 55m (comprising distributed area and heat transfer zone), gravity-flow ventilation;
Sprinkler design rotating speed 259-294r/min;
Environment temperature～32 ℃; 137 ℃ of fused solution temperature; Fused solution infeeds pressure 0.03-0.1mPa;
Urea production ability 18t/h, 65 ℃ of particle tower exit temperatures, granule strength 4.5N.
2. adopt such prilling condition, as follows by sieving definite particle size distribution:
＜0.85mm 0.4％
0.85-1.0mm 0.5％
1.0-1.6mm 6.5％
1.6-2.0mm 8?1％
2.0-2.5mm 9.25％
2.5-2.8mm 1.15％
＞2.85mm 0.8％
Claims (9)
1. rotate isobaric urea granulation sprayer in a buffering, comprise the sprayer body (14) that has spray orifice (15), it is characterized in that: the top of sprayer body (14) is provided with surge chamber (3), and buffer body (5) is installed in the surge chamber (3), and buffer body has the spray aperture on (5); A flow nozzle (7) is fixed by connecting plate (8) in sprayer body (14) middle part; Sprayer body (14) bottom is provided with the isobaric uniform device (9) of annular separatory, and sprayer body (14) center is provided with diversion rod (10), and it is fixing with buffer body (5) that flow nozzle (7) is passed in the upper end of diversion rod (10), and the lower end is fixed on sprayer body (14) bottom.
2. the isobaric urea granulation sprayer of rotation in a kind of buffering according to claim 1 is characterized in that: the outer insulation interlayer (4) that is provided with of described surge chamber (3).
3. the isobaric urea granulation sprayer of rotation in a kind of buffering according to claim 1, it is characterized in that: described buffer body (5) is hollow cone or hollow truncate circular cone, is fixed on surge chamber (3) center by gusset (6).
4. the isobaric urea granulation sprayer of rotation in a kind of buffering according to claim 3, it is characterized in that: the cone angle of the circular cone of described buffer body (5) is 30 °-60 °, and wall thickness is the 1-10 millimeter.
5. the isobaric urea granulation sprayer of rotation in a kind of buffering according to claim 1, it is characterized in that: the truncate polygonal hollow cone that the described isobaric uniform device of annular separatory (9) is formed for several inequilateral awl sheets (18), awl sheet (18) is fixed in the sprayer body (14) by axle (16), awl sheet lower shaft (11) on the awl sheet, and the moving angle of row is along each 45 ° in contrary direction.
6. the isobaric urea granulation sprayer of rotation in a kind of buffering according to claim 5 is characterized in that: described awl sheet (18) surface is plane or male and fomale(M﹠F).
7. according to the isobaric urea granulation sprayer of rotation in claim 5 or the 6 described a kind of bufferings, it is characterized in that: 8 °-15 ° of the vertical monolateral angles of described awl sheet (18), awl sheet thickness 1-10 millimeter.
8. the isobaric urea granulation sprayer of rotation in a kind of buffering according to claim 5, it is characterized in that: described awl sheet (18) quantity is the 6-12 sheet.
9. the isobaric urea granulation sprayer of rotation in a kind of buffering according to claim 1, it is characterized in that: described diversion rod (10) surface is provided with spiral ring type fanning strip (13).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200320108649 CN2673491Y (en) | 2003-12-05 | 2003-12-05 | Buffer internal rotating isobaric urea granulating nozzle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200320108649 CN2673491Y (en) | 2003-12-05 | 2003-12-05 | Buffer internal rotating isobaric urea granulating nozzle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2673491Y true CN2673491Y (en) | 2005-01-26 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200320108649 Expired - Lifetime CN2673491Y (en) | 2003-12-05 | 2003-12-05 | Buffer internal rotating isobaric urea granulating nozzle |
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| CN (1) | CN2673491Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102320902A (en) * | 2011-08-24 | 2012-01-18 | 兖矿鲁南化肥厂 | Internal-throttling rotary isopiestic granulating nozzle |
| CN104693135A (en) * | 2013-12-04 | 2015-06-10 | 山东联合化工股份有限公司 | Urea-caking-proofing urine washing tower |
-
2003
- 2003-12-05 CN CN 200320108649 patent/CN2673491Y/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102320902A (en) * | 2011-08-24 | 2012-01-18 | 兖矿鲁南化肥厂 | Internal-throttling rotary isopiestic granulating nozzle |
| CN102320902B (en) * | 2011-08-24 | 2013-10-23 | 兖矿鲁南化肥厂 | Internal-throttling rotary isopiestic granulating nozzle |
| CN104693135A (en) * | 2013-12-04 | 2015-06-10 | 山东联合化工股份有限公司 | Urea-caking-proofing urine washing tower |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Effective date of abandoning: 20060222 |
|
| C25 | Abandonment of patent right or utility model to avoid double patenting |