CN112221173A - Anti-sticking wall type spray drying device for preparing zinc oxide - Google Patents
Anti-sticking wall type spray drying device for preparing zinc oxide Download PDFInfo
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- CN112221173A CN112221173A CN202010995777.1A CN202010995777A CN112221173A CN 112221173 A CN112221173 A CN 112221173A CN 202010995777 A CN202010995777 A CN 202010995777A CN 112221173 A CN112221173 A CN 112221173A
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- spray drying
- drying tower
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- zinc oxide
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- 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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- 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
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- Vaporization, Distillation, Condensation, Sublimation, And Cold Traps (AREA)
- Inorganic Compounds Of Heavy Metals (AREA)
Abstract
The invention discloses an anti-sticking wall type spray drying device for preparing zinc oxide, which comprises a spray drying tower, a cover plate, a discharge hole, a feed inlet, a driving motor, a rotating shaft, a turnover sheet, an umbrella-shaped cover and a vent pipe, wherein compressed air is conveyed into the spray drying tower through the vent pipe by air compression equipment, and the inner wall of the umbrella-shaped cover generates turbulence to the compressed air so that the compressed air is blown to the inner wall of the lower end part of the spray drying tower. The invention has the beneficial effects that: rotate through driving motor drive pivot, make the upset piece rotate, the raw materials that gets into in the spray drying tower by the feed inlet produces the impact to the upset piece like this, and the rotation of upset piece evenly gets rid of the raw materials to the spray drying tower in, reduces the raw materials and produces in the spray drying tower and piles up the phenomenon, and then has reduced the phenomenon that the raw materials adheres to in the spray drying tower.
Description
Technical Field
The invention relates to the field of spray drying towers for processing zinc oxide, in particular to an anti-sticking wall type spray drying device for preparing zinc oxide.
Background
Zinc oxide is an inorganic substance, has a chemical formula of ZnO, and is an oxide of zinc. Is insoluble in water and soluble in acid and strong base. Zinc oxide is a commonly used chemical additive, and is widely applied to the manufacture of products such as plastics, silicate products, synthetic rubber, lubricating oil, paint, coating, ointment, adhesive, food, batteries, flame retardant and the like. The zinc oxide has large energy band gap and exciton constraint energy, high transparency and excellent normal temperature luminous performance, and is applied to products such as liquid crystal displays, thin film transistors, light emitting diodes and the like in the semiconductor field. In addition, the zinc oxide of fine particles also starts to function in the related art as a nano material.
Spray drying is a drying process in which a raw material liquid is put into an atomizer to be separated into droplets, and hot air or other gases are directly contacted with the droplets to obtain a product in the shape of powder particles. In the thirty-four decades of the 20 th century. Spray drying technology has been widely used in the production of detergents, dairy products, dehydrated foods, dyes, cements, and fertilizers. Currently, the most common milk powder, instant coffee, instant food soup, etc. are products obtained from spray drying processes. Originally, spray drying technology was only applied to dairy industry in China, and was subsequently applied to pharmaceutical industry, dye industry, detergent industry and the like, and nowadays, the spray drying technology is very common in China. Especially in the pharmaceutical and ceramic industries. The use of spray drying is increasingly widespread. The spray drying technology has a very special purpose in the pharmaceutical industry, greatly simplifies and shortens the process and time from the traditional Chinese medicine extracting solution to the semi-finished product or the finished product of the preparation, and improves the production efficiency and the quality of the medicine.
In the prior art, when zinc oxide nanoparticles are prepared, a spray drying tower is usually needed to dry zinc oxide, and the zinc oxide in a nanoparticle state is small in volume, easy to attach to the inner wall of the spray drying tower and inconvenient to clean.
To solve the above problems, we have therefore proposed a spray drying apparatus of the anti-sticking wall type for zinc oxide production.
Disclosure of Invention
The technical problem to be solved by the invention is to overcome the defects of the prior art, and to solve the technical problem, the invention provides an anti-sticking wall type spray drying device for preparing zinc oxide, and the invention provides the following technical scheme:
the invention provides an anti-sticking wall type spray drying device for preparing zinc oxide, which comprises a spray drying tower, wherein the top of the spray drying tower is provided with a cover plate, the bottom of the spray drying tower is provided with a discharge hole communicated with the interior of the spray drying tower, the outer wall of the upper end part of the spray drying tower is provided with a feed hole communicated with the interior of the spray drying tower, the inner wall of the lower end part of the spray drying tower is in a gradual mouth-tying form, the cover plate is vertically provided with a driving motor, the driving motor is connected with a rotating shaft in a driving way, the lower end of the rotating shaft extends into the spray drying tower, the part of the rotating shaft penetrating into the spray drying tower is provided with a plurality of turnover pieces along the axial array of the rotating shaft, the outer contours of the turnover pieces are approximately arc-shaped, the installation positions of the turnover pieces correspond to the feed hole, the lower end of, the breather pipe extends to the vertical upwards extension of one end in the spray drying tower, and the mouth of pipe corresponds umbrella-shaped cover inner wall peak, and its other end intercommunication outside air compression equipment, outside air compression equipment with compressed air via in the breather pipe carries to the spray drying tower, and by the umbrella-shaped cover inner wall produces the vortex to compressed air, makes compressed air blow to on the inner wall of tip under the spray drying tower.
Preferably, the inner wall of the lower end part of the spray drying tower is provided with a stainless steel layer attached to the inner wall.
Preferably, a plurality of scraping assemblies for scraping zinc oxide particles attached to the inner wall of the spray drying tower are further arranged on the part of the rotating shaft extending into the spray drying tower.
Preferably, strike off the subassembly including cup jointing in the pivot extends to a plurality of mount pads of one serving in the spray drying tower, the coaxial connecting rod that is equipped with on the mount pad, the connecting rod is kept away from the vertical scraper blade that is equipped with of mount pad one end, the scraper blade surface is contradicted with the inner wall of spray drying tower and is connected, makes when the pivot rotates, can drive the scraper blade strikes off adnexed zinc oxide particle on to the spray drying tower inner wall.
Preferably, the connecting rod is slidably fitted and penetrates out of the mounting seat, a sliding block is arranged at one end of the connecting rod penetrating into the mounting seat, correspondingly, a sliding groove for clamping the sliding block and capable of freely sliding along the axial direction of the connecting rod is formed in the mounting seat, an elastic piece is arranged in the sliding groove and used for abutting against the sliding block and driving the sliding block to slide towards the direction away from the rotating shaft, and then the scraper is enabled to abut against the inner wall of the spray drying tower.
Preferably, the elastic member is an expansion spring, the expansion spring is horizontally installed in the sliding groove, and two ends of the elastic direction of the expansion spring respectively abut against the inner walls of the sliding block and one side of the sliding groove, which is adjacent to the rotating shaft.
Preferably, the connecting rod is provided with a plurality of reinforcing ribs which extend onto the scraper and are used for reinforcing the scraper.
Compared with the prior art, the invention has the following beneficial effects: the rotating shaft is driven to rotate by the driving motor, so that the turnover sheet rotates, raw materials entering the spray drying tower from the feeding hole impact the turnover sheet, the turnover sheet rotates to uniformly throw the raw materials into the spray drying tower, accumulation of the raw materials in the spray drying tower is reduced, the phenomenon that the raw materials are attached to the spray drying tower is further reduced, compressed air generated by external air compression equipment is blown into the umbrella-shaped cover through the vent pipe, the umbrella-shaped cover carries out turbulence on the compressed air, the compressed air is uniformly dispersed, air is blown to the inner wall of the spray drying tower, zinc oxide particles attached to the inner wall of the spray drying tower are blown out, the phenomenon that the zinc oxide particles are attached to the inner wall of the spray drying tower is further reduced, the stainless steel layer is arranged, and the zinc oxide particles are not easily attached to the surface of the stainless steel layer due to the lower friction coefficient of the surface of the stainless steel layer, the setting strikes off the subassembly, and then can scrape off the zinc oxide granule that adheres to on the inner wall of spray drying tower, avoids for a long time adhering to on the spray drying tower and leads to the caking phenomenon.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the principles of the invention and not to limit the invention. In the drawings:
FIG. 1 is a schematic view of the general assembly structure of a spray drying apparatus for preparing zinc oxide, which is of a wall sticking prevention type according to the present invention;
FIG. 2 is an enlarged schematic view of a portion of the structure of FIG. 1 at A;
FIG. 3 is a schematic view of the construction of the flip sheet of the present invention;
in the figure: 1-driving motor, 2-cover plate, 3-turning piece, 4-feeding hole, 5-rotating shaft, 6-scraping plate, 7-spray drying tower, 8-umbrella-shaped cover, 9-stainless steel layer, 10-ventilating pipe, 11-discharging hole, 12-connecting rod, 13-expansion spring, 14-mounting seat, 15-sliding groove and 16-sliding block.
Detailed Description
The preferred embodiments of the present invention will be described in conjunction with the accompanying drawings, and it will be understood that they are described herein for the purpose of illustration and explanation and not limitation.
Examples
As shown in fig. 1-3, an anti-sticking wall type spray drying device for zinc oxide preparation comprises a spray drying tower 7, a cover plate 2 is arranged at the top of the spray drying tower 7, a discharge port 11 communicated with the spray drying tower is arranged at the bottom of the spray drying tower 7, a feed port 4 communicated with the spray drying tower is arranged on the outer wall of the upper end of the spray drying tower, the inner wall of the lower end of the spray drying tower 7 is in a gradual bundle mouth form, a driving motor 1 is vertically arranged on the cover plate 2, a rotating shaft 5 is connected on the driving motor 1 in a driving manner, the lower end of the rotating shaft 5 extends into the spray drying tower 7, a plurality of turnover pieces 3 are arranged on the part penetrating into the spray drying tower 7 along the axial direction of the rotating shaft in an array manner, the outer contour of each turnover piece 3 is approximately arc-shaped, the installation position of each turnover piece corresponds to the corresponding feed port 4, an umbrella, wear to be equipped with on the outer wall of spray drying tower 7 and extend to breather pipe 10 in it, the vertical upwards extension of one end in the spray drying tower 7 is extended to breather pipe 10, and the mouth of pipe corresponds 8 inner wall peaks of umbrella-shaped cover, its other end intercommunication outside air compression equipment, outside air compression equipment with compressed air via breather pipe 10 carries to spray drying tower 7 in, and by 8 inner walls of umbrella-shaped cover produce the vortex to compressed air, make compressed air blow to on the inner wall of tip under the spray drying tower 7.
In this embodiment, preferably, a stainless steel layer 9 is provided on the inner wall of the lower end of the spray drying tower 7 so as to be bonded to the inner wall.
In this embodiment, it is preferable that the part of the rotating shaft 5 extending into the spray drying tower 7 is further provided with a plurality of scraping assemblies for scraping zinc oxide particles attached to the inner wall of the spray drying tower 7.
In this embodiment, as preferably, scrape the subassembly including cup jointing in pivot 5 extends to spray drying tower 7 in one a plurality of mount pads 14 of serving, the coaxial connecting rod 12 that is equipped with on the mount pad 14, the connecting rod 12 is kept away from the vertical scraper blade 6 that is equipped with of mount pad 14 one end, 16 surfaces of scraper blade are contradicted with the inner wall of spray drying tower 7 and are connected, make when pivot 5 rotates, can drive scraper blade 6 strikes off adnexed zinc oxide granule on the inner wall of spray drying tower 7.
In this embodiment, preferably, the connecting rod 12 is slidably inserted through the mounting seat 14, a sliding block 16 is disposed at one end of the connecting rod that penetrates into the mounting seat 14, correspondingly, a sliding groove 15 that is provided for the sliding block 16 to engage with and can freely slide along the axial direction of the connecting rod 12 is disposed in the mounting seat 14, an elastic member is disposed in the sliding groove 15, and the elastic member is used for abutting against the sliding block 16 and driving the sliding block 16 to slide in a direction away from the rotating shaft 5, so that the scraper 6 abuts against the inner wall of the spray drying tower 7. Set up the elastic component for scraper blade 6 can be at the spray drying tower 7 of the different internal diameters of adaptation to a certain extent, avoid scraper blade 6 and spray drying tower 7 to produce rigid contact simultaneously, lead to scraper blade 6 rupture or damaged.
In this embodiment, preferably, the elastic member is an extension spring 13, the extension spring 13 is horizontally installed in the sliding groove 15, and two ends of the elastic direction of the extension spring 13 respectively abut against the inner walls of the sliding block 16 and the sliding groove 15 adjacent to the rotating shaft 5, and the elastic member is the extension spring 3, and the extension spring 3 is relatively easy to purchase and has a relatively low cost.
In the present embodiment, it is preferable that the connecting bar 12 is provided with a plurality of ribs extending to the blade 6 for reinforcing the blade 6, and the rigidity of the blade 6 can be improved by providing the ribs.
The working principle and the advantages achieved when the invention is used are as follows: zinc oxide raw material is blown into a spray drying tower 7 through a feed inlet 4, an external power supply is connected, a driving motor 1 is started, the driving motor 1 rotates, and then an overturning sheet 3 rotates, zinc oxide particles impact the overturning sheet 3 in the rotating process, so that centrifugal force is generated on the zinc oxide particles by the overturning sheet 3, and then the zinc oxide particles are centrifugally thrown out, the zinc oxide particles can uniformly fall into the spray drying tower 7, and further are prevented from being accumulated at a certain position of the spray drying tower 7 and attached to the inner wall of the spray drying tower 7, a rotating shaft 5 rotates, and simultaneously a driving scraper 6 scrapes off the zinc oxide particles attached to the inner wall of the spray drying tower 7, so that the zinc oxide particles are prevented from generating caking phenomenon on the inner wall of the spray drying tower 7, compressed air is conveyed into an umbrella-shaped cover 8 through a vent pipe 10 by an external air compression device, and the compressed air is disturbed by the umbrella-shaped cover 8, the compressed air is made to flow uniformly to the inner walls of the spray drying tower 7, and the zinc oxide particles on the inner wall of the spray drying tower 7 are blown off by air flow impact.
Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that changes may be made in the embodiments and/or equivalents thereof without departing from the spirit and scope of the invention. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (7)
1. The utility model provides an antiseized wall type spray drying device of zinc oxide preparation, includes spray drying tower (7), spray drying tower (7) top is equipped with apron (2), and its bottom is equipped with its inside discharge gate (11) of intercommunication, is equipped with feed inlet (4) rather than inside intercommunication on the outer wall of its upper end portion, the inner wall of tip becomes to restrainting a mouthful form gradually under spray drying tower (7), its characterized in that: the vertical driving motor (1) of installing on apron (2), the last drive connection of driving motor (1) has pivot (5), pivot (5) lower extreme extends to in spray drying tower (7), and it wears into be equipped with a plurality of upset pieces (3) along its axial array on the position in spray drying tower (7), upset piece (3) outline roughly becomes the arc, and its mounted position with feed inlet (4) are corresponding, pivot (5) lower extreme cover is equipped with umbrella-shaped cover (8), the oral area of umbrella-shaped cover (8) is towards discharge gate (11) of spray drying tower (7), wear to be equipped with on spray drying tower (7) outer wall and extend breather pipe (10) in it, breather pipe (10) extend to the vertical upwards extension of one end in spray drying tower (7), and the mouth of pipe corresponds umbrella-shaped cover (8) inner wall peak, the other end of the spray drying tower is communicated with an external air compression device, the external air compression device conveys compressed air into the spray drying tower (7) through the vent pipe (10), and the inner wall of the umbrella-shaped cover (8) generates turbulent flow to the compressed air, so that the compressed air is blown to the inner wall of the lower end part of the spray drying tower (7).
2. A zinc oxide-produced release wall type spray drying apparatus according to claim 1, wherein: and a stainless steel layer (9) attached to the inner wall of the lower end part of the spray drying tower (7) is arranged on the inner wall of the lower end part of the spray drying tower.
3. A zinc oxide-produced release wall type spray drying apparatus according to claim 1, wherein: the part of the rotating shaft (5) extending into the spray drying tower (7) is also provided with a plurality of scraping assemblies for scraping zinc oxide particles attached to the inner wall of the spray drying tower (7).
4. A zinc oxide-produced release wall type spray drying apparatus according to claim 3, wherein: strike off the subassembly including cup jointing in pivot (5) extend to spray drying tower (7) one serve a plurality of mount pads (14), the coaxial connecting rod (12) that is equipped with on mount pad (14), mount pad (14) one end is kept away from in connecting rod (12) vertical scraper blade (6) that is equipped with, scraper blade (16) surface is contradicted with the inner wall of spray drying tower (7) and is connected, makes when pivot (5) rotate, can drive scraper blade (6) strike off adnexed zinc oxide particle on to spray drying tower (7) inner wall.
5. A zinc oxide-made release wall type spray-drying apparatus according to claim 4, wherein: connecting rod (12) cunning is joined in marriage and is worn out mount pad (14), and its one end of wearing into in mount pad (14) is equipped with a slider (16), and is corresponding, be equipped with in mount pad (14) and supply slider (16) block, and can follow connecting rod (12) axial sliding chute (15) freely, be equipped with an elastic component in sliding chute (15), the elastic component is used for supporting against slider (16), and the drive slider (16) slide towards the direction of keeping away from pivot (5), and then make scraper blade (6) contradict the inner wall of spray drying tower (7).
6. A zinc oxide-made release wall type spray-drying apparatus according to claim 5, wherein: the elastic piece is an expansion spring (13), the expansion spring (13) is horizontally arranged in the sliding groove (15), and two ends of the elastic piece in the elastic direction respectively abut against the sliding block (16) and the inner wall of one side, adjacent to the rotating shaft (5), of the sliding groove (15).
7. A zinc oxide-made release wall type spray-drying apparatus according to claim 5, wherein: the connecting rod (12) is provided with a plurality of reinforcing ribs which extend to the scraper (6) and are used for reinforcing the scraper (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010995777.1A CN112221173A (en) | 2020-09-21 | 2020-09-21 | Anti-sticking wall type spray drying device for preparing zinc oxide |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010995777.1A CN112221173A (en) | 2020-09-21 | 2020-09-21 | Anti-sticking wall type spray drying device for preparing zinc oxide |
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| Publication Number | Publication Date |
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| CN112221173A true CN112221173A (en) | 2021-01-15 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010995777.1A Pending CN112221173A (en) | 2020-09-21 | 2020-09-21 | Anti-sticking wall type spray drying device for preparing zinc oxide |
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| CN (1) | CN112221173A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117298626A (en) * | 2023-11-29 | 2023-12-29 | 内蒙古华景新材料有限责任公司 | Spray drying device for preparing high-compaction lithium iron phosphate and preparation process of lithium iron phosphate |
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| CN109289220A (en) * | 2018-11-20 | 2019-02-01 | 南京同皓干燥设备有限公司 | A kind of efficient spray drying machine |
| CN210477469U (en) * | 2019-07-08 | 2020-05-08 | 浙江恒澜科技有限公司 | PTT continuous polymerization pre-crystallization device |
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2020
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Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN103816795A (en) * | 2014-03-17 | 2014-05-28 | 北京承天明德环保科技有限公司 | Semi-dry process desulfurization dust-removing technique and device |
| CN205886260U (en) * | 2016-08-01 | 2017-01-18 | 扬州日发干燥工程有限公司 | Antiseized spray drier |
| CN108529737A (en) * | 2018-05-18 | 2018-09-14 | 南通劲凌智能科技有限公司 | A kind of aerating oxidation tower and its method for groundwater treatment |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117298626A (en) * | 2023-11-29 | 2023-12-29 | 内蒙古华景新材料有限责任公司 | Spray drying device for preparing high-compaction lithium iron phosphate and preparation process of lithium iron phosphate |
| CN117298626B (en) * | 2023-11-29 | 2024-01-30 | 内蒙古华景新材料有限责任公司 | Spray drying device for preparing high-compaction lithium iron phosphate and preparation process of lithium iron phosphate |
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Application publication date: 20210115 |
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