CN116966826A - Outward spout blue structure and prilling granulator - Google Patents
Outward spout blue structure and prilling granulator Download PDFInfo
- Publication number
- CN116966826A CN116966826A CN202311149844.8A CN202311149844A CN116966826A CN 116966826 A CN116966826 A CN 116966826A CN 202311149844 A CN202311149844 A CN 202311149844A CN 116966826 A CN116966826 A CN 116966826A
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- China
- Prior art keywords
- blue
- spray blue
- outer spray
- shaft
- spiral
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 239000007921 spray Substances 0.000 claims abstract description 73
- 239000002002 slurry Substances 0.000 claims abstract description 23
- 238000005507 spraying Methods 0.000 claims abstract description 21
- 238000005469 granulation Methods 0.000 claims abstract description 16
- 230000003179 granulation Effects 0.000 claims abstract description 16
- 238000000034 method Methods 0.000 claims abstract description 5
- 230000005540 biological transmission Effects 0.000 claims description 7
- 238000003756 stirring Methods 0.000 claims description 3
- 239000007788 liquid Substances 0.000 abstract description 6
- 239000002245 particle Substances 0.000 description 12
- 239000003337 fertilizer Substances 0.000 description 4
- 239000000463 material Substances 0.000 description 4
- 239000011148 porous material Substances 0.000 description 3
- XSQUKJJJFZCRTK-UHFFFAOYSA-N Urea Chemical compound NC(N)=O XSQUKJJJFZCRTK-UHFFFAOYSA-N 0.000 description 2
- LQXZLHKVIRVBTC-UHFFFAOYSA-O [N+](=O)([O-])[O-].[NH4+].[P] Chemical compound [N+](=O)([O-])[O-].[NH4+].[P] LQXZLHKVIRVBTC-UHFFFAOYSA-O 0.000 description 2
- 230000001133 acceleration Effects 0.000 description 2
- 239000004202 carbamide Substances 0.000 description 2
- 150000001875 compounds Chemical class 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000009969 flowable effect Effects 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000013618 particulate matter Substances 0.000 description 2
- 239000002994 raw material Substances 0.000 description 2
- RDXARWSSOJYNLI-UHFFFAOYSA-N [P].[K] Chemical compound [P].[K] RDXARWSSOJYNLI-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 230000014509 gene expression Effects 0.000 description 1
- 238000000227 grinding Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 239000000155 melt Substances 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 238000012797 qualification Methods 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000012798 spherical particle Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 238000011144 upstream manufacturing Methods 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J2/00—Processes or devices for granulating materials, e.g. fertilisers in general; Rendering particulate materials free flowing in general, e.g. making them hydrophobic
- B01J2/02—Processes or devices for granulating materials, e.g. fertilisers in general; Rendering particulate materials free flowing in general, e.g. making them hydrophobic by dividing the liquid material into drops, e.g. by spraying, and solidifying the drops
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J2/00—Processes or devices for granulating materials, e.g. fertilisers in general; Rendering particulate materials free flowing in general, e.g. making them hydrophobic
- B01J2/20—Processes or devices for granulating materials, e.g. fertilisers in general; Rendering particulate materials free flowing in general, e.g. making them hydrophobic by expressing the material, e.g. through sieves and fragmenting the extruded length
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Crushing And Pulverization Processes (AREA)
Abstract
The invention discloses an external spraying blue structure and a granulating device; the outer blue structure that spouts includes: the outer spray blue body is used for containing slurry, and the annular plate is arranged around the outer periphery of the outer spray blue body; a cutting plate is arranged on the edge, far away from the outer spray blue body, of the annular plate; holes for spraying slurry are formed in the side face of the outer spray blue body. Through having set up annular plate and cutting board for the hole can set up bigger in the granulation process, further has set up the spiral sword, can increase the downforce of the thick liquids in the outer blue that spouts, can further prevent to block up.
Description
Technical Field
The invention relates to the field of high tower granulation in fertilizer production, in particular to an externally spraying blue structure and a granulating device thereof.
Background
In the production process of compound fertilizer, the tower-type spray nozzle granulation technology is a common granulation technology at present, urea or ammonium nitrate phosphorus which can be melted at low temperature is utilized to carry out indirect heating melting, the urea or ammonium nitrate phosphorus is stirred and mixed with phosphorus-potassium fertilizer to prepare flowable slurry, the flowable slurry is naturally overflowed into a granulator, the raw materials are sprayed out through holes on the spray nozzle to form liquid drops under the rotation action of the spray nozzle, and the liquid drops meet upstream air in the descending process and are gradually cooled and crystallized into particles.
The differential granulating spray heads of the high-tower compound fertilizer in the prior art are small-hole granulating spray heads, the aperture of the small-hole granulating spray heads is 2-5mm, melt slurry is sprayed out of thousands of small holes of the spray heads, and as the melt slurry raw material inevitably contains solid insoluble matters, unpacked fibers and powder aggregates which are not fully mixed and are larger than the technological requirements, spray holes are easily blocked, if a certain spray hole is blocked, associated trickles and splash liquid drops are generated, defective products are caused, and the finished product qualification rate and granulating quality are seriously affected.
Disclosure of Invention
In order to overcome the defects in the prior art, the invention aims to provide an external spray blue structure and a granulating device thereof; according to the invention, the annular plate and the cutting plate are arranged around the outer periphery of the outer spray blue, so that a novel granulating device is provided, and the problems of granulation blockage and granulation non-uniformity can be effectively solved.
The invention adopts the following technical scheme:
an outer spray blue structure; comprising the following steps: the outer spray blue body is used for containing slurry, and the annular plate is arranged around the outer periphery of the outer spray blue body; a cutting plate is arranged on the edge, far away from the outer spray blue body, of the annular plate; holes for spraying slurry are formed in the side face of the outer spray blue body.
Preferably, the cutting plate is provided with saw teeth or notches; the openings of the saw teeth or the notches are arranged towards the direction of the outward spraying blue body.
Preferably, the annular plate is spirally arranged; the holes are formed in the outer spray blue body between the adjacent spiral annular plates.
Preferably, the annular plate is arranged in a circular ring shape; the holes are formed in the outer spray blue body between the upper annular plate and the lower annular plate.
Preferably, the annular plate is arranged on the outer spray blue body in an upturned mode; the outward spraying blue body is in a frustum shape with a large upper part and a small lower part.
Preferably, the diameter of the hole is 8-10mm; the center distance of the hole is 11-20mm; the distance between the adjacent annular plates is 15-30mm.
The invention also provides a granulating device which comprises the outer spray blue structure, an inner shaft driving device, an outer shaft driving device, an inner shaft, an outer spray blue support and a spiral cutter; the outer shaft driving device, the outer shaft and the outer spray blue structure are sequentially connected in a transmission way; the inner shaft driving device, the inner shaft and the spiral knife are sequentially connected in a transmission way, and the rotary knife is arranged in the outer spray blue structure and is used for stirring, cutting and centrifuging slurry.
Preferably, the rotation direction of the inner shaft and the outer shaft are opposite; the outer shaft and the inner shaft are concentrically arranged, and the outer shaft is sleeved outside the inner shaft; the inner shaft and the outer shaft are rotatably fixed on a rack of the granulating device; a spiral knife seat pivoted with the frame of the granulating device is also arranged between the inner shaft and the spiral knife; and an outer spray blue support pivoted with the frame of the granulating device is also arranged between the outer shaft and the outer spray blue structure.
Preferably, the spiral knife is in a conical structure with a big top and a small bottom; the clearance between the spiral knife and the inner wall of the outer spray blue body is 13-20mm.
Preferably, a horizontal cutter is arranged at the bottom of the spiral cutter.
Compared with the prior art, the invention has the beneficial effects that:
firstly, the invention provides a structure completely different from the traditional blue spraying granulation, the holes arranged in the traditional blue spraying granulation are smaller, the spraying speed of slurry is controlled through the aperture of the holes, and the granulation and the control of the particle size in the granulation are realized; but is easy to block due to smaller pore diameter; according to the invention, the annular plate and the cutting plate are arranged, and even the saw teeth are further arranged on the cutting plate, so that the size of the particle size is not controlled by the size of the aperture in the granulating process; but the particle size is granulated and controlled by rotary cutting of the ejected liquid; a new granulation apparatus and method is provided. Further, the pore diameter of the invention can be set larger, and the pore diameter is less prone to blockage.
Secondly, the horizontal cutter is arranged, so that the material with larger particles can be further ground and cut, the particle size of the material is reduced, and the particles can pass through the holes on the outer spray blue body.
Drawings
FIG. 1 is a cross-sectional view of a granulating apparatus;
FIG. 2 is a schematic structural view of a helical blade;
FIG. 3 is a schematic diagram of an outer spray blue structure;
FIG. 4 is a schematic view of a saw blade;
in the figure: 1. an inner shaft driving device; 2. an outer shaft driving device; 3. a housing; 4. an inner shaft; 5. an outer shaft; 6. a spiral tool apron; 7. a feed box; 8. an outer spray blue support; 9. a spiral knife; 91. a rotating shaft; 92. a helical cutter; 93. a horizontal cutter; 10. an outer spray blue structure; 101. an outer spray blue body; 102. an annular plate; 103. cutting the plate; 1031. saw teeth; 104. holes.
Detailed Description
The present invention will be further described with reference to the accompanying drawings and detailed description, wherein it is to be understood that, on the premise of no conflict, the following embodiments or technical features may be arbitrarily combined to form new embodiments.
It will be understood that when an element is referred to as being "fixed to" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may be present. The use of "vertical," "horizontal," "left," "right," and similar expressions are for illustrative purposes only and are not meant to be the only embodiment.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The term "and/or" as used herein includes any and all combinations of one or more of the associated listed items.
Example 1
As shown in fig. 1-4, an outer blue spray structure 10; comprising the following steps: an outer spray blue body 101 for accommodating slurry and an annular plate 102 disposed around the outer periphery of the outer spray blue body 101; the edge of the annular plate 102 far away from the outer spray blue body 101 is provided with a cutting plate 103; the side surface of the outer spray blue body 101 is provided with a hole 104 for spraying slurry. The annular plate 102 is arranged continuously and uninterruptedly and is used for receiving slurry sprayed from the holes 104 in an acceleration way; the cutting plate 103 is used to cut or break up the slurry strip and form particles as the tower flies down.
As a preferred embodiment, the cutting plate 103 is provided with a notch, preferably a saw tooth 1031; the notches of the saw teeth 1031 are arranged towards the outer spray blue body 101. The setting of this embodiment can make the material strip length after the cutting different, and weight size, flight windage all are different, can disperse the flight in the high tower, and fully cool off to can not lead to the material to pile up same position.
As a preferred embodiment, the annular plate 102 is spirally arranged; the hole 104 is provided on the outer spray blue body 101 between the adjacent spiral annular plates 102. The spiral arrangement can be such that the slurry will be accelerated upwards or downwards, and when it is tangential to the cutting plate 103, it will be bevelled, cut more easily and fly farther.
As a preferred embodiment, the annular plate 102 is arranged in a circular ring shape; the outer spray blue body 101 between the adjacent upper and lower annular plates 102 is provided with the hole 104. The circular ring can horizontally spray out the slurry, so that the spraying is more uniform
As a preferred embodiment, the annular plate 102 is arranged on the outer spray blue body 101 in an upturned manner; the outer spray blue body 101 is in a frustum shape with a large upper part and a small lower part. The body of frustum design can make the pressure when spiral sword 9 is rotatory to push down bigger, more is favorable to bottom particulate matter to spout from hole 104.
Preferably, the diameter of the hole 104 is 8-10mm; the center distance of the hole 104 is 11-20mm; the distance between the adjacent annular plates 102 is 15-30mm. The holes 104 with larger aperture are adopted, so that better particle passing performance is provided, and blocking is prevented more effectively; secondly, by finely setting the gap between the annular plates 102 and the distance between the holes 104, the particle size and speed of granulation can be effectively controlled. While preventing the occurrence of disqualified particle shapes such as stripes.
The invention also provides a granulating device which comprises the outer spray blue structure 10, an inner shaft driving device 1, an outer shaft driving device 2, a shell 3 sleeved on the periphery of the granulating device, an inner shaft 4, an outer shaft 5, a spiral cutter holder 6, an outer spray blue support 8 and a spiral cutter 9; the outer spraying blue structure 10 is arranged on the outer spraying blue support 8, and the outer shaft driving device 2, the outer shaft 5, the outer spraying blue support 8 and the outer spraying blue structure 10 are sequentially connected in a transmission manner; one end of the spiral knife 9 is arranged on the spiral knife holder 6, the other end of the spiral knife 9 extends into the outer blue spraying structure 10, and the inner shaft driving device 2, the inner shaft 5, the spiral knife holder 6 and the spiral knife 9 are sequentially connected in a transmission manner and are used for driving the spiral knife 9 to stir, cut and centrifuge slurry. In this embodiment the inner shaft 4 can be directly connected to the screw blade 9; the screw knife seat 6 can also be connected with the screw knife 9; the outer shaft 5 can be directly connected with the outer blue spraying structure 10 or connected with the outer blue spraying support 8; the outer shaft 5 and the inner shaft 4 may be independently provided in parallel, or the inner shaft 4 may be inserted concentrically into the outer shaft 5. In this embodiment, the inner shaft 4 and the outer shaft 5 are rotatably mounted on a frame or a machine body of the device, and the spiral tool apron 6 and the outer spray blue support 7 are rotatably mounted on the frame machine body. Further specifically, the inner shaft driving device 1 and the outer shaft driving device 2 of the present embodiment may be different motors, or the same power source, and transfer transmission is performed through a transfer device.
As a preferred embodiment, the inner shaft 4 is arranged opposite to the direction of rotation of the outer shaft 5.
As a preferred embodiment, the spiral knife 9 has a conical structure with a big top and a small bottom; the clearance between the spiral knife 9 and the inner wall of the outer spray blue body 101 is 13-20mm. The bottom of the spiral knife 9 is provided with a horizontal cutter 93. The specific spiral cutter 9 comprises a rotating shaft 91 and a spiral cutter 92 spirally encircling the rotating shaft 91; the horizontal cutter 93 is disposed at the bottom end of the rotary shaft 91, and mainly performs the functions of cutting, grinding, and striking the particulate matter.
The working principle of the invention is that slurry enters the outer spray blue body 101 through the feed box 7 which is communicated with the outside and the outer spray blue structure 10; at this time, the spiral knife 9 and the outer blue spraying structure 10 rotate in opposite directions; and the rotation speed of the inner shaft 4 is far higher than that of the outer shaft 5, and the rotation speed of the inner shaft 4 per minute is 1000-3000 revolutions. The rotation direction of the inner shaft 4 is determined by the spiral direction of the spiral blade 9, opposite to the rotation direction of the spiral cutter 92 in the spiral blade 9; at this time, the agglomerate grains are cut by the spiral cutter 92 rotating at a high speed; under the downward pressure provided by the spiral knife 9, the particles move to the bottom, are chopped by the horizontal cutter 93, and simultaneously provide downward pressure for the slurry, so that the slurry is sprayed into the annular plate 102 from the holes 104, further enters the annular plate 102 for acceleration and separation, collides into the cutting plate 103 to form fine line liquid drops, is thrown into the granulating tower, performs heat exchange with countercurrent cold air, and finally contracts into spherical particles under the action of molecular tension.
The above embodiments are only preferred embodiments of the present invention, and the scope of the present invention is not limited thereto, but any insubstantial changes and substitutions made by those skilled in the art on the basis of the present invention are intended to be within the scope of the present invention as claimed.
Claims (10)
1. An outer spray blue structure; the method is characterized by comprising the following steps:
the outer spray blue body is used for containing slurry, and the annular plate is arranged around the outer periphery of the outer spray blue body; a cutting plate is arranged on the edge, far away from the outer spray blue body, of the annular plate; holes for spraying slurry are formed in the side face of the outer spray blue body.
2. The outside spray blue structure of claim 1, wherein: the cutting plate is provided with a notch; the notch is arranged towards the direction of the outward spraying blue body.
3. The outside spray blue structure of claim 1, wherein: the annular plate is spirally arranged; the holes are formed in the outer spray blue body between the adjacent spiral annular plates.
4. The outside spray blue structure of claim 1, wherein: the annular plate is arranged in a circular shape; the holes are formed in the outer spray blue body between the upper annular plate and the lower annular plate.
5. The outside spray blue structure of claim 1, wherein: the annular plate is arranged on the outer spray blue body in an upturned mode; the outer spray blue body is in a frustum shape with a large upper part and a small lower part; the cutting plate is provided with saw teeth; the opening of sawtooth spouts blue body orientation setting outwards.
6. The outside spray blue structure according to any one of claims 1 to 5, wherein: the diameter of the hole is 8-10mm; the center distance of the hole is 11-20mm; the distance between the adjacent annular plates is 15-30mm.
7. A granulation device, characterized in that: an outer spray blue structure, an inner shaft driving device, an outer shaft driving device, an inner shaft, an outer spray blue support and a spiral knife according to any one of claims 1-5; the outer shaft driving device, the outer shaft and the outer spray blue structure are sequentially connected in a transmission way; the inner shaft driving device, the inner shaft and the spiral knife are sequentially connected in a transmission way, and the rotary knife is arranged in the outer spray blue structure and is used for stirring, cutting and centrifuging slurry.
8. The granulation apparatus as set forth in claim 7, wherein: the rotation direction of the inner shaft and the rotation direction of the outer shaft are opposite; the outer shaft and the inner shaft are concentrically arranged, and the outer shaft is sleeved outside the inner shaft; the inner shaft and the outer shaft are rotatably fixed on a rack of the granulating device; a spiral knife seat pivoted with the frame of the granulating device is also arranged between the inner shaft and the spiral knife; and an outer spray blue support pivoted with the frame of the granulating device is also arranged between the outer shaft and the outer spray blue structure.
9. The granulation device as set forth in claim 8, wherein: the spiral knife is in a conical structure with a large upper part and a small lower part; the clearance between the spiral knife and the inner wall of the outer spray blue body is 13-20mm.
10. Granulation apparatus according to claim 9, characterized in that: the spiral cutter comprises a rotating shaft and a spiral cutter which is spirally fixed on the rotating shaft; the bottom end of the rotating shaft is fixedly provided with the horizontal cutter.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN202311149844.8A CN116966826A (en) | 2023-09-06 | 2023-09-06 | Outward spout blue structure and prilling granulator |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN202311149844.8A CN116966826A (en) | 2023-09-06 | 2023-09-06 | Outward spout blue structure and prilling granulator |
Publications (1)
Publication Number | Publication Date |
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CN116966826A true CN116966826A (en) | 2023-10-31 |
Family
ID=88473226
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN202311149844.8A Pending CN116966826A (en) | 2023-09-06 | 2023-09-06 | Outward spout blue structure and prilling granulator |
Country Status (1)
Country | Link |
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CN (1) | CN116966826A (en) |
-
2023
- 2023-09-06 CN CN202311149844.8A patent/CN116966826A/en active Pending
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