CN113492078A - Powder spraying device - Google Patents
Powder spraying device Download PDFInfo
- Publication number
- CN113492078A CN113492078A CN202110881558.5A CN202110881558A CN113492078A CN 113492078 A CN113492078 A CN 113492078A CN 202110881558 A CN202110881558 A CN 202110881558A CN 113492078 A CN113492078 A CN 113492078A
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- China
- Prior art keywords
- powder
- spraying device
- barrel
- dissolving
- powder spraying
- 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.)
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Links
- 239000000843 powder Substances 0.000 title claims abstract description 125
- 238000005507 spraying Methods 0.000 title claims abstract description 48
- 239000007921 spray Substances 0.000 claims abstract description 21
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 46
- 239000012530 fluid Substances 0.000 claims description 4
- 229940098458 powder spray Drugs 0.000 claims description 3
- 238000007599 discharging Methods 0.000 claims description 2
- 238000009434 installation Methods 0.000 abstract description 5
- 230000000694 effects Effects 0.000 abstract description 4
- 230000002349 favourable effect Effects 0.000 abstract description 4
- 239000000243 solution Substances 0.000 description 14
- 238000003860 storage Methods 0.000 description 5
- 238000004090 dissolution Methods 0.000 description 4
- 239000003814 drug Substances 0.000 description 3
- 238000002347 injection Methods 0.000 description 3
- 239000007924 injection Substances 0.000 description 3
- 239000007788 liquid Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 239000000825 pharmaceutical preparation Substances 0.000 description 2
- 238000009827 uniform distribution Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000000151 deposition Methods 0.000 description 1
- 239000000645 desinfectant Substances 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 239000011812 mixed powder Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
- B05B15/00—Details of spraying plant or spraying apparatus not otherwise provided for; Accessories
- B05B15/20—Arrangements for agitating the material to be sprayed, e.g. for stirring, mixing or homogenising
Abstract
The present invention provides a powder spraying device, comprising: the device comprises a powder feeding mechanism, a pre-dissolving mechanism, a single-stage ejector and a needle valve. The powder spraying device provided by the invention is provided with the pre-dissolving mechanism, the pre-dissolving mechanism can be used for preliminarily dissolving powder to be sprayed, so that preliminarily dissolved powder solution is provided for the single-stage ejector, and the problem that dry powder is easily blocked between the pre-dissolving mechanism and the spraying and mixing mechanism when the spraying and mixing mechanism works in the prior art is solved. Meanwhile, in the powder spraying device, the installation mode of the spray head is reasonably designed, and the conical disperser is arranged, so that the powder can be rapidly and uniformly dissolved in a favorable way by matching the spray head with the conical disperser, the utilization rate of the powder is further improved, and a better powder spraying effect is achieved.
Description
Technical Field
The invention relates to the technical field of powder supply, in particular to a powder spraying device.
Background
In the case of powder type pharmaceutical preparations, the pharmaceutical preparation is dissolved to form a liquid medicine, and then the liquid medicine is sprayed to the corresponding area. For example, in public places where there is a high population density, it is necessary to spray disinfectants to ensure that the regional location meets hygienic standards.
Currently, existing powder spray devices typically include: powder feeding mechanism and injection mechanism. Wherein, dry powder that powder feeding mechanism provided is directly sent into the injection mechanism, and the high pressure rivers in the injection mechanism are taken away and are mixed dry powder, make it form medicament solution to spray corresponding regional place.
However, in the existing powder spraying device, the spraying mechanism has a backflushing problem during operation, and part of water flow backflushing enters the powder feeding mechanism, so that dry powder is easily affected with damp, and a channel between the powder feeding mechanism and the spraying mechanism is easily blocked. Therefore, it is necessary to provide a further solution to the above problems.
Disclosure of Invention
The invention aims to provide a powder spraying device to overcome the defects in the prior art.
In order to solve the technical problems, the technical scheme of the invention is as follows:
a powder spray device, comprising: the device comprises a powder feeding mechanism, a pre-dissolving mechanism, a single-stage ejector and a needle valve;
the pre-dissolving mechanism comprises: an inner cylinder, an outer cylinder and a one-way valve;
the inner cylinder is accommodated in the outer cylinder, the inlet end of the inner cylinder is communicated with the powder feeding port of the powder feeding mechanism, and the outlet end of the inner cylinder extends to the outlet end of the bottom of the outer cylinder;
a water inlet pipe is arranged at the top of the outer barrel, and a pre-dissolving space is formed between the outlet end of the inner barrel and the outlet end of the bottom of the outer barrel;
the outlet end of the bottom of the outer barrel is connected with the single-stage ejector through a one-way valve, and the needle valve is connected with the water inlet end of the single-stage ejector.
As an improvement of the powder spraying device of the present invention, the powder feeding mechanism includes: the powder barrel is communicated with a feeding hole of the spiral conveyor, and a discharging hole of the spiral conveyor is communicated with an inlet end of the inner barrel through the fluid director.
As an improvement of the powder spraying device, the water inlet pipe extends into the outer barrel, and the water inlet pipe inside is connected with a spray head arranged towards the inside of the outer barrel.
As an improvement of the powder spraying device, the spray heads are centrally and symmetrically distributed on two sides or the periphery of the inner barrel, and the spray heads are obliquely arranged.
As an improvement of the powder spraying device, the outer cylinder is a conical cylinder, and water flow sprayed by each spray head covers the inner side wall of the conical cylinder.
As an improvement of the powder spraying device, the inner cylinder is also provided with a disperser, the disperser is a conical part with a tip end facing the powder feeding port, and a gap is also arranged between the lower end of the disperser and the inner side wall of the inner cylinder.
As an improvement of the powder spraying device, the inner cylinder, the outer cylinder, the disperser and the powder feeding port are coaxially arranged.
As an improvement of the powder spraying device, the lower end of the disperser is fixed in the inner cylinder through a cross-shaped connecting piece.
As an improvement of the powder spraying device, a bypass of the needle valve is also connected with the water inlet pipe.
Compared with the prior art, the invention has the beneficial effects that: the powder spraying device provided by the invention is provided with the pre-dissolving mechanism, the pre-dissolving mechanism can be used for preliminarily dissolving powder to be sprayed, so that preliminarily dissolved powder solution is provided for the single-stage ejector, and the problem that dry powder is easily blocked between the pre-dissolving mechanism and the spraying and mixing mechanism when the spraying and mixing mechanism works in the prior art is solved.
Meanwhile, in the powder spraying device, the installation mode of the spray head is reasonably designed, and the conical disperser is arranged, so that the powder can be rapidly and uniformly dissolved in a favorable way by matching the spray head with the conical disperser, the utilization rate of the powder is further improved, and a better powder spraying effect is achieved.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments described in the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
FIG. 1 is a front view of one embodiment of a powder spraying device of the present invention;
fig. 2 is an enlarged plan view of the pre-dissolving mechanism of the powder spraying device of fig. 1.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
As shown in fig. 1 and 2, an embodiment of the present invention provides a powder spraying device, including: a powder feeding mechanism 10, a pre-dissolving mechanism 20, a single-stage ejector 31, and a needle valve 32.
The powder feeding mechanism 10 is used for storing and feeding the powder to the pre-dissolving mechanism 20.
In this embodiment, the powder feeding mechanism 10 specifically includes: a powder barrel 11, a screw conveyor 12 and a deflector 13.
Wherein, powder storage bucket 11 is used for depositing dry powder, and in order to facilitate the transport of powder, this powder storage bucket 11 specifically can be a toper storage bucket, and this toper storage bucket upper portion size is great, and the lower part size is less, and the opening of this powder storage bucket 11 sets up in the bottom. Therefore, powder is convenient to gather and send during powder feeding, and the powder conveying efficiency is improved.
The bottom of the powder barrel 11 is communicated with the feed inlet of the screw conveyor 12, and the discharge port of the screw conveyor 12 is communicated with the inlet end of the inner barrel through a fluid director 13. Thus, the powder is transported laterally to the pre-dissolving mechanism 20 via the screw conveyor 12. The screw conveyor 12 is of conventional design, and the screw conveyor 12 has a conveying cylinder, a screw rod disposed in the conveying cylinder, and an external rotating motor drivingly connected to the screw rod. Therefore, when the motor works, the screw rod pushes the powder to be transversely conveyed.
The mechanism 20 that dissolves in advance is used for preliminarily dissolving the powder that needs the spraying, and then provides the powder solution of preliminarily dissolving and give single-stage ejector 31, and then can overcome prior art during operation of single-stage ejector 31, the problem of dry powder jam between mechanism 20 and single-stage ejector 31 in advance easily.
In this embodiment, the pre-dissolving mechanism 20 includes: an inner cylinder 21, an outer cylinder 22, and a check valve 23.
The inner cylinder 21 is used for receiving the powder from the powder feeding mechanism 10. Accordingly, the inlet end of the inner cylinder 21 is communicated with the powder feeding port of the powder feeding mechanism 10, the inner cylinder 21 is accommodated in the outer cylinder 22, and the outlet end of the inner cylinder 21 extends to the outlet end of the bottom of the outer cylinder 22. Thus, the powder is fed from the inlet end and falls down along the inner cylinder 21 to the outlet end thereof.
The outer cylinder 22 is used for assisting the installation and fixation of the inner cylinder 21 and providing a pre-dissolving space. Specifically, the top of the outer tub 22 is provided with an inlet pipe 221. The water inlet pipe 221 extends into the outer tub 22, and the inner water inlet pipe 221 is connected to a shower head 222 provided toward the inside of the outer tub 22. Thus, a water flow for pre-dissolving the powder can be supplied through the nozzle 222, and the supplied water flow can dissolve the powder falling from the inner cylinder 21 below the outlet end of the inner cylinder 21, thereby forming a powder pre-dissolving solution to be supplied to the single-stage ejector 31. At this time, a pre-dissolving space 220 is formed between the outlet end of the inner cylinder 21 and the outlet end of the bottom of the outer cylinder 22. So, be favorable to preliminary dissolving of powder, and then provide the powder solution of preliminary dissolving and give single-stage ejector 31, overcome prior art medium-voltage switchgear 31 during operation, the dry powder is easy in the problem of blockking up between mechanism and the single-stage ejector of dissolving in advance.
Further, in order to achieve the full dissolution of the powder as much as possible during the pre-dissolution process, the nozzles 222 are centrally and symmetrically distributed on two sides or four sides of the inner cylinder 21, and the nozzles 222 on the two sides or four sides are inclined. In this way, the water flow sprayed from the nozzle 222 is also substantially symmetrical, which is advantageous for uniform distribution of the sprayed water flow. At this time, the water flow sprayed from the spray head 222 can form a high-speed rotating water flow in the pre-dissolving space 220 to achieve rapid and uniform dissolution of the powder. The nozzle 222 may be a fan nozzle.
In one embodiment, the outer cylinder 22 is a cone-shaped cylinder with its tip facing downward, and the water streams from the nozzles 222 on both sides are sprayed on the inner wall of the cone-shaped outer cylinder 22. By adjusting the installation angle of the fan-shaped spray heads 222 and the size of the sprayed water flow, the water flow sprayed by each spray head 222 can cover the inner side wall of the conical outer cylinder 22, and the sprayed water flow is uniformly distributed.
In order to uniformly disperse the powder in the pre-dissolving space 220, a disperser 24 is further provided in the inner cylinder 21. The disperser 24 is a conical member with a tip facing the powder feeding port. Preferably, the inner cylinder 21, the outer cylinder 22, the disperser 24, and the powder feeding port are coaxially disposed.
Therefore, the powder entering from the inlet end of the inner cylinder 21 can be gradually dispersed on the tapered surface of the tapered member and uniformly dropped into the pre-dissolving space 220. So, through the evenly distributed of high-speed rotatory rivers and powder, be favorable to dissolving evenly fast of in-process powder in advance, and then improve the utilization ratio of powder to gain better powder spraying effect.
In order to facilitate the falling of the powder after dispersion, a gap is also arranged between the lower end of the disperser 24 and the inner side wall of the inner cylinder 21. At this time, the lower end of the distributor 24 is fixed to the inner cylinder 21 by a cross-shaped connector 241 so as to form the gap. The connecting member 241 may be connected to the disperser 24 and the inner cylinder 21 by welding.
The single stage ejector 31 is adapted to receive the powder pre-dissolving solution from the pre-dissolving mechanism 20, to further mix the powder pre-dissolving solution, and to eject it under high pressure.
Specifically, the outlet end of the bottom of the outer cylinder 22 is connected to a single-stage ejector 31 via a check valve 23. One end of the single-stage ejector 31 is a water inlet end to be connected with an external high-pressure water pipe 40; the other end is a spraying end to spray the powder solution which is fully mixed with the high-pressure water flow.
The check valve 23 can further avoid the influence of backlash. At this time, the outlet end of the bottom of the outer cylinder 22 is vertically connected to the middle position of the single-stage ejector 31 through the check valve 23, thereby facilitating the sufficient mixing of the high-pressure water flow and the powder pre-dissolving solution.
The needle valve 32 is used for synchronously supplying water to the water inlet pipe 221 on the outer cylinder 22, and the needle valve 32 can be connected with the water inlet end of the single-stage ejector 31 or the high-pressure water pipe 40 connected with the water inlet end of the single-stage ejector 31. The needle valve 32 functions to: so that a part of the high-pressure water flow from the plunger pump is supplied to the pre-dissolving mechanism. The needle valve 32 has strong adjustability, controllable opening degree and convenient operation and use. The flow required by the pre-dissolving mechanism can be accurately regulated and controlled.
Thus, a part of the high-pressure water flow in the high-pressure water pipe 40 flows into the single-stage ejector 31, and the other part is branched into the outer cylinder 22 via the needle valve 32 to achieve pre-dissolution of the powder. Accordingly, the bypass of the needle valve 32 is also connected to the inlet pipe 221. In this way, while the needle valve 32 provides water flow to the water inlet pipe 221 on the outer cylinder 22, the needle valve 32 can also adjust the size of the water flow sprayed by the fan-shaped spray head 222, so that the water flow sprayed by the spray head 222 can cover the inner side wall of the conical outer cylinder 22, and further uniform distribution of the sprayed water flow is realized.
When the powder spraying device works, high-pressure water flow is turned on, the main ejector works, a needle valve at the bypass is adjusted, and water flows through the adjustable fan-shaped spray head to form vortex water flow in the outer cylinder; and starting the powder feeding mechanism, converging the powder conveyed by the powder feeding mechanism at the fluid director, dispersing the flowed powder in vortex water flow through the disperser, immediately and uniformly mixing, and spraying the mixed powder by the main jet device to form powder solution with a certain proportion for spraying.
In conclusion, the powder spraying device provided by the invention is provided with the pre-dissolving mechanism, the pre-dissolving mechanism can be used for preliminarily dissolving powder to be sprayed, so that a preliminarily dissolved powder solution is provided for the single-stage ejector, and the problem that dry powder is easily blocked between the pre-dissolving mechanism and the spraying and mixing mechanism when the spraying and mixing mechanism is backflushed in the prior art is solved.
Meanwhile, in the powder spraying device, the installation mode of the spray head is reasonably designed, and the conical disperser is arranged, so that the powder can be fully dissolved through the matching of the spray head and the conical disperser, the utilization rate of the powder is improved, and a better powder spraying effect is achieved.
It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.
Claims (9)
1. A powder spraying device, comprising: the device comprises a powder feeding mechanism, a pre-dissolving mechanism, a single-stage ejector and a needle valve;
the pre-dissolving mechanism comprises: an inner cylinder, an outer cylinder and a one-way valve;
the inner cylinder is accommodated in the outer cylinder, the inlet end of the inner cylinder is communicated with the powder feeding port of the powder feeding mechanism, and the outlet end of the inner cylinder extends to the outlet end of the bottom of the outer cylinder;
a water inlet pipe is arranged at the top of the outer barrel, and a pre-dissolving space is formed between the outlet end of the inner barrel and the outlet end of the bottom of the outer barrel;
the outlet end of the bottom of the outer barrel is connected with the single-stage ejector through a one-way valve, and the needle valve is connected with the water inlet end of the single-stage ejector.
2. The powder spray device of claim 1, wherein the powder feed mechanism comprises: the powder barrel is communicated with a feeding hole of the spiral conveyor, and a discharging hole of the spiral conveyor is communicated with an inlet end of the inner barrel through the fluid director.
3. The powder spraying device of claim 1 wherein the water inlet tube extends into the interior of the outer barrel, the interior water inlet tube being connected to a spray head disposed toward the interior of the outer barrel.
4. The powder spraying device of claim 3, wherein the nozzles are centrally and symmetrically distributed on two sides or the periphery of the inner barrel, and each nozzle is obliquely arranged.
5. The powder spraying device of claim 4, wherein the outer barrel is a conical barrel, and the water flow sprayed from each spray head covers the inner side wall of the conical barrel.
6. The powder spraying device as claimed in any one of claims 1, 3, 4 and 5, wherein a disperser is further disposed in the inner cylinder, the disperser is a tapered member having a tip disposed toward the powder feeding port, and a gap is further disposed between a lower end of the disperser and an inner sidewall of the inner cylinder.
7. The powder spraying device of claim 6 wherein the inner barrel, outer barrel, disperser and powder feed port are coaxially disposed.
8. The powder spraying device of claim 6 wherein the lower end of the disperser is secured in the inner barrel by a cruciform attachment.
9. The powder spraying device of claim 1 wherein the bypass of the needle valve is further connected to the water inlet line.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110881558.5A CN113492078B (en) | 2021-08-02 | Powder spraying device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110881558.5A CN113492078B (en) | 2021-08-02 | Powder spraying device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN113492078A true CN113492078A (en) | 2021-10-12 |
| CN113492078B CN113492078B (en) | 2024-07-02 |
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Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1932236A (en) * | 2006-09-28 | 2007-03-21 | 侯华业 | Method and apparatus for directly dispersing polymer dry powder by hydraulic jet |
| CN2886076Y (en) * | 2006-09-29 | 2007-04-04 | 侯华业 | Device for directly dispersing polymer dry powder by using hydraulic jet |
| CN201692903U (en) * | 2010-07-06 | 2011-01-05 | 王颖 | Water-saving spray nozzle |
| CN105080749A (en) * | 2015-08-14 | 2015-11-25 | 华南农业大学 | Pesticide blending spray-head with spraying concentration controlled through motor |
| CN110424011A (en) * | 2019-09-06 | 2019-11-08 | 武汉洛克斯模具技术有限公司 | A kind of laser coating and powder feeding device |
| KR20190129391A (en) * | 2018-05-10 | 2019-11-20 | 주식회사 리드파워 | Portable type low-pressure polyurethane foam spray machine |
| CN112354709A (en) * | 2020-10-18 | 2021-02-12 | 中国人民解放军陆军工程大学 | Efficient preparation device for nano composite material |
| CN213255178U (en) * | 2020-07-31 | 2021-05-25 | 湖北华夏水利水电股份有限公司 | Special-shaped concrete spraying nozzle |
| CN215429825U (en) * | 2021-08-02 | 2022-01-07 | 苏州农业药械有限公司 | Powder spraying device |
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1932236A (en) * | 2006-09-28 | 2007-03-21 | 侯华业 | Method and apparatus for directly dispersing polymer dry powder by hydraulic jet |
| CN2886076Y (en) * | 2006-09-29 | 2007-04-04 | 侯华业 | Device for directly dispersing polymer dry powder by using hydraulic jet |
| CN201692903U (en) * | 2010-07-06 | 2011-01-05 | 王颖 | Water-saving spray nozzle |
| CN105080749A (en) * | 2015-08-14 | 2015-11-25 | 华南农业大学 | Pesticide blending spray-head with spraying concentration controlled through motor |
| KR20190129391A (en) * | 2018-05-10 | 2019-11-20 | 주식회사 리드파워 | Portable type low-pressure polyurethane foam spray machine |
| CN110424011A (en) * | 2019-09-06 | 2019-11-08 | 武汉洛克斯模具技术有限公司 | A kind of laser coating and powder feeding device |
| CN213255178U (en) * | 2020-07-31 | 2021-05-25 | 湖北华夏水利水电股份有限公司 | Special-shaped concrete spraying nozzle |
| CN112354709A (en) * | 2020-10-18 | 2021-02-12 | 中国人民解放军陆军工程大学 | Efficient preparation device for nano composite material |
| CN215429825U (en) * | 2021-08-02 | 2022-01-07 | 苏州农业药械有限公司 | Powder spraying device |
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