CN108379863B - Feed liquid distributor of atomizer - Google Patents
Feed liquid distributor of atomizer Download PDFInfo
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- CN108379863B CN108379863B CN201810412192.5A CN201810412192A CN108379863B CN 108379863 B CN108379863 B CN 108379863B CN 201810412192 A CN201810412192 A CN 201810412192A CN 108379863 B CN108379863 B CN 108379863B
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- 239000007788 liquid Substances 0.000 title claims abstract description 148
- 238000007789 sealing Methods 0.000 claims description 14
- 238000005299 abrasion Methods 0.000 abstract description 17
- 230000002035 prolonged effect Effects 0.000 abstract description 12
- 238000009826 distribution Methods 0.000 abstract description 9
- 230000007547 defect Effects 0.000 abstract description 4
- 238000000889 atomisation Methods 0.000 abstract description 3
- 239000000463 material Substances 0.000 description 28
- 238000000227 grinding Methods 0.000 description 22
- 230000002829 reductive effect Effects 0.000 description 10
- 230000000694 effects Effects 0.000 description 8
- 238000011010 flushing procedure Methods 0.000 description 6
- 230000007704 transition Effects 0.000 description 5
- 230000000903 blocking effect Effects 0.000 description 4
- 238000006477 desulfuration reaction Methods 0.000 description 4
- 230000023556 desulfurization Effects 0.000 description 4
- 238000007599 discharging Methods 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 4
- 238000005192 partition Methods 0.000 description 4
- 238000009991 scouring Methods 0.000 description 4
- 230000000630 rising effect Effects 0.000 description 3
- 230000001133 acceleration Effects 0.000 description 2
- 239000000919 ceramic Substances 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 239000011248 coating agent Substances 0.000 description 2
- 238000000576 coating method Methods 0.000 description 2
- 239000000498 cooling water Substances 0.000 description 2
- 230000003247 decreasing effect Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000001035 drying Methods 0.000 description 2
- 230000007774 longterm Effects 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 1
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 1
- 238000005054 agglomeration Methods 0.000 description 1
- 230000002776 aggregation Effects 0.000 description 1
- 230000001174 ascending effect Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 229910010293 ceramic material Inorganic materials 0.000 description 1
- 239000003245 coal Substances 0.000 description 1
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- 229910003460 diamond Inorganic materials 0.000 description 1
- 239000010432 diamond Substances 0.000 description 1
- 239000003814 drug Substances 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 230000003628 erosive effect Effects 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 239000003546 flue gas Substances 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 239000013072 incoming material Substances 0.000 description 1
- 239000000411 inducer Substances 0.000 description 1
- 239000004615 ingredient Substances 0.000 description 1
- 230000000670 limiting effect Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 238000005272 metallurgy Methods 0.000 description 1
- 229910052755 nonmetal Inorganic materials 0.000 description 1
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- 238000007254 oxidation reaction Methods 0.000 description 1
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D1/00—Evaporating
- B01D1/30—Accessories for evaporators ; Constructional details thereof
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D1/00—Evaporating
- B01D1/16—Evaporating by spraying
- B01D1/18—Evaporating by spraying to obtain dry solids
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- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
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Abstract
The invention discloses a feed liquid distributor of an atomizer, and belongs to the technical field of feed liquid distributors. The invention relates to a feed liquid distributor of an atomizer, which comprises a discharge pipe, wherein an outlet of the discharge pipe corresponds to an atomizing wheel inlet of a rotary atomizing wheel, and guide vanes II are uniformly arranged on the inner wall of the discharge pipe at intervals along the circumferential direction. The invention aims to overcome the defects of serious abrasion and uneven distribution of a feed liquid distributor of an atomizer in the prior art, and provides the feed liquid distributor of the atomizer, which can ensure that feed liquid is uniformly distributed into a discharge pipe and an atomizing wheel, so that atomization is uniform, a nozzle is not easy to block, and the service life of the atomizer is prolonged.
Description
Technical Field
The invention relates to the technical field of feed liquid distributors, in particular to a feed liquid distributor of an atomizer.
Background
At present, most of feed liquid distributor designs of high-speed rotary drying atomizers at home and abroad adopt volute type and orifice plate structures. When the spiral case type feed liquid distributor runs at the designed flow, the flow velocity of each section of feed liquid in the spiral case is balanced, the distribution of the feed liquid entering the discharge pipe is even, and the radial force from the feed liquid received by the main shaft is balanced. When the flow rate of the feed liquid deviates from the design flow rate, the flow rate of each section is unequal, so that the feed liquid entering the discharge pipe is unevenly distributed and even is blocked. The orifice plate type feed liquid distributor has a simple structure, but has large flow resistance to feed liquid, is easy to cause feed liquid blockage, and simultaneously has large area of orifice plates required by large flow, so that equipment is bulky. The feed liquid distributor with two structures can only vertically discharge downwards, and the lower material receiving atomizing wheel rotates at a high speed, so that the atomizing wheel is seriously worn, and the radial nozzle of the atomizing wheel is more worn due to the angle with the incoming material and is easy to block. The abrasion and blockage causes the eccentric acceleration damage of the high-speed rotating atomizing wheel, and simultaneously causes the damage of the main shaft, the main shaft bearing and the guide bearing due to the eccentric vibration of the atomizing wheel, and the damage of the whole atomizer due to the vibration is caused when serious.
The original high-speed rotary atomizer is mostly used in the medicine and food industries, the proportion and flow of materials in the production process are relatively stable, and the production requirements can be met by adopting the existing volute type and orifice plate type feed liquid distributor. However, with further improvement of domestic environmental protection emission requirements, the high-speed rotary atomizer is widely used in semi-dry desulfurization projects such as metallurgy, electric power, coal chemical industry and the like, and the defects of the two material liquid distributors are undoubtedly exposed. Because the metallurgical production process and ingredients are unstable, the sulfur content and temperature fluctuation of the flue gas are obvious, and the desulfurization feed liquid is required to be changed. The change of the desulfurization feed liquid causes the balance of the atomizing wheel to be lost, so that equipment is damaged, and normal production is seriously influenced. Therefore, how to solve the problems of abrasion and material liquid distribution balance of the high-speed rotary atomizer is important.
Through searching, a great deal of patents have been published on the design of atomizers at present, such as Chinese patent application number: 2017208927927, filing date: 21 days of 2017, 7 months, the invention is named: the feed liquid distributor of the high-speed centrifugal atomizer comprises a feed liquid distributor bracket, a feed liquid distributor disc, a feed liquid distributor and a cooling water disc, wherein the feed liquid distributor disc is embedded in the feed liquid distributor bracket below, is connected and positioned with the feed liquid distributor bracket through countersunk screws, and is sealed through an O-shaped sealing ring; the feed liquid distributor cooling water tray is arranged at the bottom of the feed liquid distributor tray and is connected with the feed liquid distributor bracket through countersunk screws for positioning. The defects are that: the problems of wear and uneven feed liquid distribution of the high-speed rotary atomizer are still serious and cannot be well solved.
Disclosure of Invention
1. Technical problem to be solved by the invention
The invention aims to overcome the defects of serious abrasion and uneven distribution of feed liquid in the feed liquid distributor in the prior art, and provides the feed liquid distributor of the atomizer, which can ensure that feed liquid is uniformly distributed into a discharge pipe and an atomizing wheel, so that atomization is uniform, a nozzle is not easy to block, and the service life of the rotary atomizer is prolonged.
2. Technical proposal
In order to achieve the above purpose, the technical scheme provided by the invention is as follows:
the invention relates to a feed liquid distributor of an atomizer, which comprises a volute, wherein a discharge pipe is arranged below the volute, and guide vanes II are uniformly arranged on the inner wall of the discharge pipe at intervals along the circumferential direction.
Further, a first guide vane is arranged in the volute, and extends along the involute direction of the volute.
Further, the upper end surface of the second guide vane gradually inclines downwards along the direction away from the inner wall of the discharge pipe.
Further, the included angle between the length extending direction of the second guide vane and the axial direction of the discharging pipe is alpha, and alpha=0-45 degrees.
Further, the number of second guide vanes is even.
Still further, all offer the feed inlet on the roof of feed liquid distributor, the feed inlet links to each other with the inlet pipe, has all offered the bolt hole on roof and the spiral case, and bolt one passes the bolt hole on the spiral case and is fixed in on the spiral case with the roof.
Furthermore, a first sealing ring is arranged between the top plate and the volute.
Furthermore, bolt holes are formed in the volute and the discharge pipe, and the second bolt penetrates through the bolt holes in the discharge pipe to fix the discharge pipe on the volute.
Further, a second sealing ring is arranged between the volute and the discharge pipe.
3. Advantageous effects
Compared with the prior art, the technical scheme provided by the invention has the following beneficial effects:
(1) The feed liquid distributor of the atomizer comprises a volute, a discharge pipe is arranged below the volute, guide vanes II are uniformly arranged on the inner wall of the discharge pipe at intervals along the circumferential direction, the upper end surfaces of the guide vanes II are gradually inclined downwards along the direction away from the inner wall of the discharge pipe, feed liquid can enter a rotary atomizing wheel at a tangential angle, the abrasion of the feed liquid on the rotary atomizing wheel can be effectively reduced, and the service life of the rotary atomizing wheel is prolonged.
(2) The feed liquid distributor of the atomizer is internally provided with a volute, and a first guide vane is arranged in the volute and extends along the involute direction of the volute. The guide vane divides the feed liquid entering the volute into two parts, so that the flow velocity of the feed liquid in each section of the volute is balanced, the feed liquid entering the discharge pipe is uniformly distributed, and the radial force from the feed liquid, which is born by the rotary main shaft, can be balanced under the condition of feed liquid change, so that the service life of the whole equipment of the rotary atomizer system is prolonged.
(3) According to the feed liquid distributor of the atomizer, the included angle between the distribution direction of the blades on the second guide vane and the height direction of the inner wall of the discharge pipe is alpha, and alpha=0-45 degrees. When alpha is not equal to 0 degree, the inclined arrangement of the second guide vanes enables the second guide vanes to be in integral spiral distribution on the inner wall of the discharge pipe, so that the entering feed liquid can be evenly split and a pre-rotation effect is generated on the flow of the feed liquid, the feed liquid enters the rotary atomizing wheel at a tangential angle, the inclined arrangement of the second guide vanes conforms to the rotation direction of the rotary atomizing wheel, the feed liquid is easier to enter the nozzle, the service life of the rotary atomizing wheel can be further prolonged, and the stable operation of the rotary atomizing wheel and the rotary spindle is finally ensured.
(4) According to the feed liquid distributor of the atomizer, the number of the guide vanes II is even. The even design can distribute the feed liquid into even number, and the feed liquid distributes evenly, makes the even number of its corresponding nozzle, can guarantee that the feed liquid gets into rotatory atomizing wheel evenly to evenly discharge through the nozzle, make rotatory atomizing wheel rotatory steady, the atomizing is even, the nozzle is difficult for taking place to block up, has further ensured the long-term accessible work of rotatory atomizer system whole equipment.
(5) According to the feed liquid distributor of the atomizer, the feed holes are formed in the top plate of the feed liquid distributor and are connected with the feed pipe, the top plate and the volute are provided with the bolt holes, and the top plate is fixed on the volute by the bolts through the bolt holes in the volute.
(6) According to the feed liquid distributor of the atomizer, the first sealing ring is arranged between the top plate and the volute, and the first sealing ring can better strengthen the fastening and sealing effects between the top plate and the volute and reduce the abrasion between the top plate and the volute.
Drawings
FIG. 1 is a schematic diagram of a prior art volute feed liquid dispenser;
FIG. 2 is a schematic diagram of a prior art orifice plate feed liquid dispenser;
FIG. 3 is a schematic view of a feed liquid dispenser of an atomizer according to the present invention;
FIG. 4 is a schematic top view of the scroll casing of the present invention;
FIG. 5 is a schematic cross-sectional view of a second vane and discharge tube distribution in accordance with the present invention;
FIG. 6 is a schematic three-dimensional structure of a nozzle according to the present invention;
FIG. 7 is a schematic top view of a nozzle of the present invention;
FIG. 8 is a schematic front view of a nozzle of the present invention;
FIG. 9 is a schematic left-hand view of a nozzle of the present invention;
FIG. 10 is a schematic cross-sectional view of section A-A of FIG. 7;
FIG. 11 is a schematic cross-sectional view of section B-B of FIG. 7;
FIG. 12 is a schematic view of a rotary atomizer wheel according to the present invention;
fig. 13 is a schematic view of the structure of the inlet of the rotary atomizer wheel according to the present invention.
Reference numerals in the schematic drawings illustrate:
100. a feed liquid distributor; 110. a top plate; 120. a feed pipe; 130. a first bolt; 140. a first sealing ring; 150. a volute; 151. a guide vane I; 160. a second bolt; 170. a second sealing ring; 180. a discharge tube; 181. guide vanes II;
200. rotating the atomizing wheel; 210. an atomizing wheel inlet; 220. an atomizer wheel outlet; 230. a nozzle; 231. an inner ring inlet section; 231-1, an inlet aperture; 232. an inner ring outlet section; 232-1, an outlet aperture; 233. a housing; 234. an inner ring boss; 235. an inner ring concave table; 236. a material flowing groove; 237. a circular arc ascending section; 240. an upper millstone; 250. a lower grinding disc; 251. a circular arc section; 260. a material protection layer; 300. rotating the main shaft; 400. and a discharging pore plate.
Detailed Description
For a further understanding of the present invention, the present invention will be described in detail with reference to the drawings.
In the description of the present invention, it should be noted that the directions or positional relationships indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. are based on the directions or positional relationships shown in the drawings, are merely for convenience of describing the present invention and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
The invention is further described below with reference to examples.
Example 1
As shown in fig. 3, a feed liquid dispenser of an atomizer of the present embodiment belongs to one of the main devices of a rotary atomizer system, and specifically, the rotary atomizer system includes a feed liquid dispenser 100, a rotary atomizer wheel 200 and a rotary spindle 300, wherein a discharge pipe 180 of the feed liquid dispenser 100 corresponds to an atomizer wheel inlet 210 of the rotary atomizer wheel 200, and the feed liquid dispenser 100 and a top plate 110 are connected to a rotary spindle 300 base at the upper part of the top plate 110 by bolts. As shown in fig. 1 and 2, the conventional design structure of the feed liquid distributor 100 in the high-speed rotary drying atomizer in the prior art is designed to adopt a volute type (see fig. 1) and an orifice plate type (see fig. 2) structure respectively. The involute size of the volute type feed liquid distributor is determined according to the design flow, when the design flow runs, the flow velocity of feed liquid in each section of the involute is uniform and consistent, the feed liquid is not easy to block, and meanwhile, the rotary main shaft 300 is balanced in stress. When the flow rate of the feed liquid is smaller than the design flow rate, the flow rate is reduced, most of the feed liquid flows into the discharge pipe 180 from the position close to the partition tongue, and little or no feed liquid flows into the discharge pipe 180 from the position far away from the partition tongue, so that uneven feeding of the rotary atomizing wheel 200 is caused, and the rotary atomizing wheel 200 is caused to vibrate and damage; when the flow rate of the feed liquid is greater than the design flow rate, the flow rate is increased, the feed liquid flowing into the discharge pipe 180 is not faster than the feed liquid flowing into the partition tongue, partial blockage is generated, the stress of the rotary main shaft 300 is uneven, the rotary main shaft 300 deviates to the partition tongue to cause vibration, the damage of the rotary main shaft 300 is accelerated, and meanwhile, the feed liquid entering the rotary atomizing wheel 200 is seriously uneven to cause agglomeration, so that the nozzle 230 of the rotary atomizing wheel 200 is accelerated to wear or block.
In the prior art, a porous discharging orifice 400 is arranged at the top of the discharging pipe 180 of the orifice type material liquid distributor, and the size and the number of the apertures are determined according to the material flow and the material characteristics. The larger the flow, the greater the flow area requirement of the discharge orifice 400 and the greater the orifice volume at the same flow rate due to its lack of volute involute acceleration characteristics. The orifice plate has great flow resistance to materials, so the abrasion is severe and the service life is short. Meanwhile, the small holes can block materials, and the large holes can influence the uniformity of materials passing through, so the semi-dry desulfurization device is rarely used.
The materials entering the discharge pipe 180 from the material liquid distributor 100 with the two structures are vertically downward, enter the rotary atomizing wheel 200 and are positively and directly punched, so that the rotary atomizing wheel 200 is easily worn, and even if the wear-resisting plate is additionally arranged on the bottom plate of the rotary atomizing wheel 200, the service life is short. In addition, the rotary atomizing wheel 200 is provided with radial nozzles 230, the feed liquid of the feed liquid forms an angle of 90 degrees with the nozzles 230, the abrasion to the nozzles 230 in the rotary atomizing wheel 200 with the rotating speed of tens of thousands of revolutions is extremely severe, the nozzles 230 are blocked, and unbalance and severe vibration of the rotary atomizing wheel 200 are caused to cause equipment damage.
As shown in fig. 3-11, specifically as shown in fig. 3, in this embodiment, a top plate 110 of a feed liquid distributor 100 is provided with a feed hole, the feed hole is connected with a feed pipe 120, a volute 150 is disposed in the feed liquid distributor 100, bolt holes are formed in the top plate 110 and the volute 150, and a first bolt 130 passes through the bolt holes in the volute 150 to fix the top plate 110 on the volute 150. The bolt fixing mode is simple and easy to obtain, and convenient to detach and use. A first sealing ring 140 is further disposed between the top plate 110 and the volute 150, specifically, an O-ring is adopted in the embodiment, so that fastening and sealing effects between the top plate 110 and the volute 150 can be better enhanced, and abrasion between the top plate 110 and the volute 150 can be reduced by the O-ring. Similarly, bolt holes are formed in the volute 150 and the discharge pipe 180, and the second bolt 160 passes through the bolt holes in the discharge pipe 180 to fix the discharge pipe 180 to the volute 150. A second sealing ring 170 is disposed between the scroll casing 150 and the discharge pipe 180, specifically, an O-ring is adopted in this embodiment, so as to better enhance the fastening and sealing effects between the scroll casing 150 and the discharge pipe 180, and reduce the abrasion between the discharge pipe 180 and the scroll casing 150. A nozzle 230 is installed at the atomizer wheel outlet 220 of the rotary atomizer wheel 200. In use, feed liquid enters the volute 150 through the feed pipe 120, then enters the rotary atomizer wheel 200 through the discharge pipe 180, and finally is sprayed out through the nozzle 230. In actual use, the nozzles 230 are typically arranged in multiple stages and in an even number.
In this embodiment, the inner wall of the discharge tube 180 is uniformly provided with a plurality of second guide vanes 181 at intervals along the circumferential direction, as shown in fig. 3, in this embodiment, the second guide vanes 181 adopt a structure design that the upper end faces of the second guide vanes 181 in the length direction of the blades are inclined downward, specifically, the upper end faces of the second guide vanes 181 are gradually inclined downward along the direction close to the rotating main shaft 300 (i.e. the direction far away from the inner wall of the discharge tube 180), the upper ends of the second guide vanes 181 are lower than the upper end faces of the discharge tube 180, and the lower ends of the second guide vanes 181 are higher than the outlet of the discharge tube 180. When feed liquid gets into discharge tube 180 through spiral case 150, can carry out effective separation reposition of redundant personnel to the feed liquid through stator two 181, and the inward sloping setting of stator two 181 up end can carry out reasonable adjustment to feed liquid inflow direction, makes the feed liquid get into rotatory atomizing wheel 200 with tangential angle, has avoided the front direct flushing of rotatory atomizing wheel 200, can effectively reduce the wearing and tearing of feed liquid to rotatory atomizing wheel 200, improves rotatory atomizing wheel 200's life. As shown in fig. 5, the angle between the length extension direction of the second guide vane 181 and the axial direction of the discharge pipe 180 is α, α=0-45 °, where α is optimally set according to factors such as the size, the rotation speed, the rotation direction, the position of the nozzle 230, and the material characteristics of the receiving rotary atomizing wheel 200, specifically, in this embodiment, α=0 °, the second guide vane 181 is a vertically distributed blade.
In the present embodiment, the number of the second guide vanes 181 is even. The even design can distribute the feed liquid into even number, and the feed liquid distributes evenly, makes its even number that corresponds nozzle 230, can guarantee that the feed liquid gets into rotatory atomizing wheel 200 evenly to evenly discharge through nozzle 230, make rotatory atomizing wheel 200 rotatory steadily, the atomizing is even, and nozzle 230 is difficult for taking place to block up, has further ensured the long-term accessible work of the whole equipment of rotatory atomizer system.
In this embodiment, a nozzle 230 is disposed at the atomizing wheel outlet 220 of the rotary atomizing wheel 200, an inlet hole 231-1 is formed in an inner ring inlet section 231 of the nozzle 230, and the inlet hole 231-1 is an eccentric reducing hole. The design of eccentric reducing hole makes the circumference lateral wall of inner circle inducer 231 divide into the circumference face of thickness asymmetry, during the use, with the lateral wall of thick circumference face towards rotatory opposite direction of rotatory atomizing wheel 200, the lateral wall of main wearing and tearing thick circumference face when can guaranteeing the feed liquid in the rotatory atomizing wheel 200 when getting into nozzle 230 like this to increased the unilateral thickness of feed liquid flushing face, reduced the impact wear of feed liquid to nozzle 230, avoided causing the serious problem of unilateral wearing and tearing of nozzle 230, improved nozzle 230's life.
In practical use of the embodiment, feed liquid enters the volute 150 from the feed pipe 120 on the feed liquid distributor 100, circulates along the involute direction of the volute 150, and enters the atomizer wheel inlet 210 of the rotary atomizer wheel 200 through the discharge pipe 180 uniformly at a tangential angle, and finally enters the nozzle 230 at the atomizer wheel outlet 220, thereby avoiding direct flushing on the front surface of the rotary atomizer wheel 200, reducing abrasion on the rotary atomizer wheel 200, and prolonging the service life of the rotary atomizer wheel 200. Specifically, the feed liquid distributor 100 of the atomizer of the present embodiment increases the lifetime of the rotary atomizing wheel 200 by 3 times and the lifetime of the nozzle 230 by 2 times in actual use.
Example 2
The difference of the basic structure of the feed liquid distributor of the atomizer of this embodiment is that, in this embodiment, α=30°, the inclined arrangement of the plurality of second guide vanes 181 makes the plurality of second guide vanes uniformly distribute on the inner wall of the discharge pipe 180 in a spiral manner, so that the feed liquid entering the rotary atomizing wheel 200 at a tangential angle can be uniformly split and a pre-rotation effect is generated on the flow of the feed liquid, and the inclined angle of the second guide vanes 181 is set to conform to the rotation direction of the rotary atomizing wheel 200, so that the feed liquid is easier to enter the nozzle 230, the service life of the rotary atomizing wheel 200 can be further prolonged, and the smooth running of the rotary atomizing wheel 200 and the rotary spindle 300 is finally ensured.
Example 3
The basic structure of the feed liquid distributor of the atomizer of this embodiment is the same as that of embodiment 2, except that α=45° in this embodiment.
Example 4
In the feed liquid distributor of the atomizer of this embodiment, the basic structure is the same as that of embodiment 3, further, in this embodiment, a volute 150 is provided in the feed liquid distributor 100, a first guide vane 151 is provided in the volute 150, the first guide vane 151 extends along the involute of the volute 150, the line shape of the first guide vane is symmetrical to the involute of the volute, and the tail end of the first guide vane 151 is received in the section of the straight feed chute of the volute. Specifically, as shown in fig. 4, a balance guide vane 151 is additionally arranged on the opposite surface of the involute baffle of the volute 150, the guide vane 151 and the involute baffle are absolutely symmetrical relative to the discharge pipe 180 and the rotary main shaft 300, the feed liquid entering the discharge pipe 180 can be uniformly distributed on the circumference no matter the flow rate of the feed liquid is increased or decreased, the radial force from the feed liquid, which is applied to the rotary main shaft 300, can be balanced under the condition that the feed liquid is changed, the abrasion of the material to the rotary atomizing wheel 200 is greatly reduced, the stable operation of the rotary atomizing wheel 200 and the rotary main shaft 300 is finally ensured, and the service life of the whole equipment of the rotary atomizer system is prolonged.
Example 5
In the rotary atomizer system of this embodiment, as shown in fig. 6, the nozzle 230 includes a housing 233, two ends of the housing 233 are an inner ring inlet section 231 and an inner ring outlet section 232, a circumferential side wall of the inner ring inlet section 231 includes an inner ring boss 234 and an inner ring concave table 235, the height of the inner ring concave table 235 is lower than that of the inner ring boss 234, and two ends of the inner ring concave table 235 are connected with two ends of the inner ring boss 234 through arc rising sections 237, and top end surfaces of the inner ring boss 234 and the inner ring concave table 235 are all planes. Feed liquid enters the nozzle 230 through the top end surface of the inner ring concave table 235, the designed height of the inner ring concave table 235 is lower than that of the inner ring convex table 234, the feed liquid is convenient to collect, and the resistance of the feed liquid flowing into the nozzle 230 is reduced. The feed liquid enters the nozzle 230 to mainly wash the inner wall of the inner ring boss 234, and the thickness of the inner wall of the inner ring boss 234 is larger than that of the inner wall of the inner ring concave table 235, so that the abrasion of the feed liquid to the nozzle 230 is greatly reduced, and the service life of the nozzle 230 is further prolonged.
Example 6
In the feed liquid distributor of the atomizer of the present embodiment, the basic structure is the same as that of embodiment 5, further, in the rotary atomizer system of the present embodiment, the inlet hole 231-1 is a spiral hole, and the cross section of the inlet hole 231-1 is an elliptical hole. An outlet hole 232-1 communicated with the inlet hole 231-1 is formed in the inner ring outlet section 232, the outlet hole 232-1 and the inlet hole 231-1 form a through hole structure with smooth transition of the inner wall, the outlet hole 232-1 is a spiral hole, and the section of the outlet hole 232-1 is an elliptical hole. The oval holes have better turbulence effect on the feed liquid than the cylindrical holes, so that the atomization effect of the feed liquid is better, and the nozzle 230 is not easy to be blocked. The aperture of the outlet aperture 232-1 is smaller than the aperture of the inlet aperture 231-1, i.e., the constituent via structure is a tapered hole with a continuously decreasing aperture. The nozzle 230 is designed into a large elliptical spiral inlet and a small elliptical spiral outlet, so that the large particles and viscous feed liquid are prevented from blocking the inlet of the nozzle 230, the flow velocity of the feed liquid at the outlet of the nozzle 230 is accelerated, and the blocking of the nozzle 230 is reduced.
Example 7
In the rotary atomizer system of this embodiment, the basic structure is the same as that of embodiment 6, further, in the rotary atomizer system of this embodiment, the circumferential side wall top of the inner ring concave table 235 is provided with a flow groove 236, the extension length of the flow groove 236 exceeds the circular arc rising sections 237 at two ends of the inner ring concave table 235, specifically, as shown in fig. 6, a part of the side wall is cut off on the outer side surface of the circumferential side wall of the inner ring concave table 235, so that the top of the inner ring concave table 235 protrudes out of the flow groove 236, that is, the flow groove 236 surrounds the outer side of the inner ring concave table 235, the height between the bottom surface of the flow groove 236 and the top surface of the inner ring concave table 235 is 2-3mm, specifically, the height between the bottom surface of the flow groove 236 and the top surface of the inner ring concave table 235 is 2mm. And the bottom surface of the material flowing groove 236 is in smooth arc transition connection with the circumferential side wall of the inner ring concave table 235, and two ends of the material flowing groove 236 exceed the position of the arc rising section 237 and are in arc transition connection with the inner ring boss 234. The flow grooves 236 of this embodiment help to further reduce wear and increase the service life of the nozzle 230, as follows: in actual use, most of the feed liquid directly enters the inlet hole 231-1 through the top end surface of the inner ring concave table 235, but some residual feed liquid cannot directly flow into the inlet hole 231-1 due to various reasons such as position distribution, so that the outer wall of the inner ring inlet section 231 is flushed outside the inlet hole 231-1 to further abrade the nozzle 230.
In this embodiment, the nozzle 230 may be integrally made of metal or nonmetal wear-resistant material, or the metal jacket may be lined with wear-resistant material, so that the erosion and abrasion of the feed liquid to the nozzle 230 can be effectively alleviated, and the service life of the nozzle 230 can be further prolonged.
Through actual use of the nozzle 230 of the embodiment, compared with the existing conventional atomizing nozzle 230, the wear-resistant service life of the side wall is doubled, the occurrence of blocking of the nozzle 230 is almost zero, and shutdown maintenance and equipment damage of the rotary atomizing wheel 200 caused by blocking unbalance are avoided. The nozzle 230 manufactured according to the principle described above should be installed with the thick wall side facing the opposite direction of rotation of the rotary atomizer wheel 200, thus ensuring that the material in the rotary atomizer wheel 200 mainly wears the thick wall when entering the nozzle 230.
Example 8
The basic structure of a feed liquid distributor of an atomizer of this embodiment is the same as that of embodiment 7, except that in the rotary atomizer system of this embodiment, the height between the bottom surface of the feed groove 236 and the top surface of the inner ring concave 235 is 3mm.
Example 9
The basic structure of a feed liquid distributor of an atomizer of this embodiment is the same as that of embodiment 8, except that in the rotary atomizer system of this embodiment, the height between the bottom surface of the feed groove 236 and the top surface of the inner ring concave table 235 is 2.5mm.
Example 10
As shown in fig. 12-13, the basic structure of the feed liquid dispenser of the atomizer of this embodiment is the same as that of embodiment 9, and further, in this embodiment, the nozzle 230 is disposed on the circumferential inner wall of the atomizer wheel outlet 220, the feeding end of the nozzle 230 extends toward the inside of the atomizer wheel outlet 220, and the top end of the feeding end of the nozzle 230 extends inward beyond the circumferential inner wall of the atomizer wheel outlet 220. Specifically, the housing of the nozzle 230 is screwed into the circumferential inner wall of the atomizer wheel outlet 220, and the feed end of the nozzle 230 extends a protruding distance S of 6mm into the interior of the rotary atomizer wheel 200. The convex arrangement of the nozzle 230 ensures that when in actual use, a layer of material protection layer 260 is formed on the surface of the periphery Xiang Nabi of the atomizing wheel outlet 220, and the material protection layer 260 can finally reach the level with the top end of the feeding end of the nozzle 230, namely, the thickness of the material protection layer 260 can finally reach the same convex distance S with the feeding end of the nozzle 230, the convex section of the nozzle 230 becomes anchor piles in the protection layer, the protection layer is ensured to be firm and stable, the direct contact of feed liquid and the convex outer wall of the nozzle 230 is avoided, the scouring abrasion of the feed liquid to the feeding end of the nozzle 230 is slowed down, a layer of coating protection layer is formed on the circumferential inner wall of the atomizing wheel outlet 220, the surface of the coating protection layer is not impacted by the feed liquid, the direct contact scouring of the feed liquid and the periphery Xiang Nabi of the atomizing wheel outlet 220 during feeding is avoided, the strong scouring of the inner wall of the atomizing wheel outlet 220 is further slowed down, and the service life of the rotary atomizing wheel 200 is prolonged.
In this embodiment, the size of the opening of the atomizing wheel inlet 210 is gradually increased from top to bottom, so that the material liquid can be guaranteed not to directly flush the inner wall of the rotary atomizing wheel 200 vertically when entering the rotary atomizing wheel 200, a certain guiding left and right is provided for the flowing direction of the material liquid, the flushing abrasion of the material liquid on the inner wall of the rotary atomizing wheel 200 is effectively reduced, and the service life of the rotary atomizing wheel 200 is further prolonged.
In this embodiment, an upper grinding disc 240 and a lower grinding disc 250 are respectively disposed on an inner wall of an upper end and an inner wall of a lower end of the rotary atomizer wheel 200, as shown in fig. 12, in this embodiment, the inner wall of the upper end of the rotary atomizer wheel 200 is an inner wall structure located at the top of the atomizer wheel outlet 220, the inner wall of the lower end of the rotary atomizer wheel 200 is an inner wall structure located at the bottom of the atomizer wheel outlet 220, the circumferential inner wall of the atomizer wheel outlet 220 is a side inner wall structure of the rotary atomizer wheel 200, a boss structure extending upwards for the rotary spindle 300 to pass through is further disposed in the middle of the inner wall of the bottom of the atomizer wheel outlet 220, and the outer wall of the boss structure is in smooth transition connection with the inner wall of the bottom of the atomizer wheel outlet 220 to jointly form the inner wall structure of the lower end of the rotary atomizer wheel 200. In this embodiment, the upper grinding disc 240 is embedded in the inner wall of the upper end of the rotary atomizing wheel 200, and the bottom of the upper grinding disc 240 is kept flush with the bottom of the inner wall of the upper end of the rotary atomizing wheel 200, the lower grinding disc 250 comprises a horizontal segment, a vertical segment and an arc segment 251, wherein the horizontal segment and the vertical segment are distributed in an L shape, the arc segment 251 is an arc segment recessed downwards, two ends of the arc segment 251 are respectively and smoothly transited to be connected with the horizontal segment and the vertical segment, namely, the horizontal segment of the lower grinding disc 250 is arranged on the inner wall of the bottom of the atomizing wheel outlet 220, the vertical segment of the lower grinding disc 250 is coated on the outer wall of the boss structure, the connection part of the horizontal segment and the vertical segment is also in smooth transition connection, the full fit with the inner part of the bottom of the atomizing wheel outlet 220 and the outer wall of the boss structure is ensured, and the arrangement of the arc segment 251 is also favorable for effectively guiding the incoming feed liquid, so that the direction of the feed liquid entering the nozzle 230 is convenient to be adjusted. In the embodiment, the upper grinding disc 240 and the lower grinding disc 250 are matched to effectively cover and protect the inner wall of the upper end and the inner wall of the lower end of the rotary atomizing wheel 200, so that feed liquid can not directly contact with the upper wall and the lower wall of the rotary atomizing wheel 200 when entering, the direct flushing of the feed liquid is avoided, the flushing abrasion of the feed liquid on the upper wall and the lower wall of the rotary atomizing wheel 200 can be effectively reduced, and the service life of the rotary atomizing wheel 200 is prolonged; further, the upper grinding disc 240 is detachably connected with the inner wall of the upper end of the rotary atomizing wheel 200, the lower grinding disc 250 is detachably connected with the inner wall of the lower end of the rotary atomizing wheel 200, the upper grinding disc 240 and the lower grinding disc 250 can be flexibly replaced, once the upper grinding disc 240 and the lower grinding disc 250 are severely worn, the upper grinding disc 240 and the lower grinding disc 250 are directly replaced, the operation is simple and convenient, the inner wall of the rotary atomizing wheel 200 can be effectively protected for a long time, and the service life of the rotary atomizing wheel 200 is further ensured.
In this embodiment, the upper grinding disc 240 and the lower grinding disc 250 are made of wear-resistant materials, such as ceramics, diamond, etc., and in particular, in this embodiment, are made of ceramics. The ceramic material has the advantages of high melting point, high hardness, high wear resistance, oxidation resistance and the like, improves the wear resistance of the upper grinding disc 240 and the lower grinding disc 250, protects the inner wall of the rotary atomizing wheel 200 from being worn by the scouring of feed liquid, and further improves the service life of the rotary atomizing wheel 200.
Example 11
The basic structure of a feed liquid distributor of an atomizer of this embodiment is the same as that of embodiment 10, except that in this embodiment, the distance S by which the nozzle 230 protrudes from the circumferential inner wall of the atomizer wheel outlet 220 is 8mm.
Example 12
The basic structure of a feed liquid distributor of an atomizer of this embodiment is the same as that of embodiment 11, except that in this embodiment, the distance S by which the nozzle 230 protrudes from the circumferential inner wall of the atomizer wheel outlet 220 is 10mm.
The invention and its embodiments have been described above by way of illustration and not limitation, and the invention is illustrated in the accompanying drawings and described in the drawings in which the actual structure is not limited thereto. Therefore, if one of ordinary skill in the art is informed by this disclosure, the structural mode and the embodiments similar to the technical scheme are not creatively designed without departing from the gist of the present invention.
Claims (1)
1. A feed liquid distributor of atomizer, its characterized in that: comprises a volute (150), a discharge pipe (180) is arranged below the volute (150), and guide vanes (181) are uniformly arranged on the inner wall of the discharge pipe (180) at intervals along the circumferential direction;
a first guide vane (151) is arranged in the volute (150), and the first guide vane (151) extends along the involute direction of the volute (150);
the upper end surface of the guide vane II (181) gradually inclines downwards along the direction away from the inner wall of the discharge pipe (180);
an included angle between the length extension direction of the second guide vane (181) and the axial direction of the discharge pipe (180) is alpha, alpha=30-45 degrees, and a plurality of second guide vanes (181) are obliquely arranged, so that the second guide vanes (181) are distributed on the inner wall of the discharge pipe in an integral spiral manner;
the number of the second guide vanes (181) is even;
feed holes are formed in a top plate (110) of the feed liquid distributor (100), the feed holes are connected with a feed pipe (120), bolt holes are formed in the top plate (110) and a volute (150), and a first bolt (130) penetrates through the bolt holes in the volute (150) to fix the top plate (110) on the volute (150);
a first sealing ring (140) is arranged between the top plate (110) and the volute (150);
bolt holes are formed in the volute (150) and the discharge pipe (180), and a second bolt (160) penetrates through the bolt holes in the discharge pipe (180) to fix the discharge pipe (180) on the volute (150);
a second sealing ring (170) is arranged between the volute (150) and the discharge pipe (180).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810412192.5A CN108379863B (en) | 2018-04-28 | 2018-04-28 | Feed liquid distributor of atomizer |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810412192.5A CN108379863B (en) | 2018-04-28 | 2018-04-28 | Feed liquid distributor of atomizer |
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| CN108379863A CN108379863A (en) | 2018-08-10 |
| CN108379863B true CN108379863B (en) | 2024-04-09 |
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| CN201810412192.5A Active CN108379863B (en) | 2018-04-28 | 2018-04-28 | Feed liquid distributor of atomizer |
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Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| EP4319896A1 (en) * | 2021-04-07 | 2024-02-14 | GEA Process Engineering A/S | A liquid distributor of a rotary atomizer and spray drying apparatus comprising a rotary atomizer including such a liquid distributor |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB802002A (en) * | 1953-12-28 | 1958-09-24 | Rubber Latex Poeder Compagnie | Improved apparatus for converting liquids, solutions, emulsions, suspensions, and the like into dry powders |
| BE784914R (en) * | 1971-08-06 | 1972-10-02 | Neu Sa | IMPROVEMENT OF DEVICES FOR SPRAYING LIQUID INTO AIR OR IN A |
| CN2442213Y (en) * | 2000-09-19 | 2001-08-08 | 山东省科学院能源研究所 | Hot air distributor of centrifugal spray dry tower |
| CN105709580A (en) * | 2016-04-13 | 2016-06-29 | 中冶焦耐工程技术有限公司 | Smoke distributor for rotary atomizing desulfurization and smoke distribution method |
| CN206824055U (en) * | 2017-05-17 | 2018-01-02 | 卢亭君 | A kind of atomising device of novel agricultural fog machine |
| CN107626464A (en) * | 2017-10-12 | 2018-01-26 | 中冶焦耐(大连)工程技术有限公司 | A kind of feeding device of magnetic-suspension high-speed atomizer |
| CN207025697U (en) * | 2017-07-21 | 2018-02-23 | 辽宁朗源环境科技有限公司 | A kind of high speed centrifugal atomization device feed liquid distributor |
| CN208525850U (en) * | 2018-04-28 | 2019-02-22 | 马鞍山马钢华阳设备诊断工程有限公司 | A kind of feed liquid distributor of atomizer |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20110192567A1 (en) * | 2010-02-05 | 2011-08-11 | Ming-Tsung Chiu | Condenser with a Nebulizer having a Low-Voltage Direct Current Motor |
-
2018
- 2018-04-28 CN CN201810412192.5A patent/CN108379863B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB802002A (en) * | 1953-12-28 | 1958-09-24 | Rubber Latex Poeder Compagnie | Improved apparatus for converting liquids, solutions, emulsions, suspensions, and the like into dry powders |
| BE784914R (en) * | 1971-08-06 | 1972-10-02 | Neu Sa | IMPROVEMENT OF DEVICES FOR SPRAYING LIQUID INTO AIR OR IN A |
| CN2442213Y (en) * | 2000-09-19 | 2001-08-08 | 山东省科学院能源研究所 | Hot air distributor of centrifugal spray dry tower |
| CN105709580A (en) * | 2016-04-13 | 2016-06-29 | 中冶焦耐工程技术有限公司 | Smoke distributor for rotary atomizing desulfurization and smoke distribution method |
| CN206824055U (en) * | 2017-05-17 | 2018-01-02 | 卢亭君 | A kind of atomising device of novel agricultural fog machine |
| CN207025697U (en) * | 2017-07-21 | 2018-02-23 | 辽宁朗源环境科技有限公司 | A kind of high speed centrifugal atomization device feed liquid distributor |
| CN107626464A (en) * | 2017-10-12 | 2018-01-26 | 中冶焦耐(大连)工程技术有限公司 | A kind of feeding device of magnetic-suspension high-speed atomizer |
| CN208525850U (en) * | 2018-04-28 | 2019-02-22 | 马鞍山马钢华阳设备诊断工程有限公司 | A kind of feed liquid distributor of atomizer |
Non-Patent Citations (1)
| Title |
|---|
| 崔建云.《食品加工机械与设备》.中国轻工业出版社,2004,第397-399页. * |
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