CN113492078B - Powder spraying device - Google Patents
Powder spraying device Download PDFInfo
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- CN113492078B CN113492078B CN202110881558.5A CN202110881558A CN113492078B CN 113492078 B CN113492078 B CN 113492078B CN 202110881558 A CN202110881558 A CN 202110881558A CN 113492078 B CN113492078 B CN 113492078B
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- powder
- spraying device
- cylinder
- disperser
- dissolving
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- 239000000843 powder Substances 0.000 title claims abstract description 127
- 238000005507 spraying Methods 0.000 title claims abstract description 50
- 230000007246 mechanism Effects 0.000 claims abstract description 54
- 239000007921 spray Substances 0.000 claims abstract description 27
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 45
- 238000007599 discharging Methods 0.000 claims description 3
- 238000009434 installation Methods 0.000 abstract description 5
- 230000000694 effects Effects 0.000 abstract description 4
- 238000004090 dissolution Methods 0.000 description 15
- 230000006872 improvement Effects 0.000 description 8
- 238000003860 storage Methods 0.000 description 5
- 239000003814 drug Substances 0.000 description 3
- 238000009827 uniform distribution Methods 0.000 description 3
- 239000006185 dispersion Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 230000001105 regulatory effect Effects 0.000 description 2
- 238000004220 aggregation Methods 0.000 description 1
- 230000002776 aggregation Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission 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
- 229940079593 drug Drugs 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
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 invention provides a powder spraying device, which comprises: powder feeding mechanism, pre-dissolving mechanism, single-stage ejector and needle valve. The powder spraying device provided by the invention is provided with the pre-dissolving mechanism, and the pre-dissolving mechanism can be used for carrying out preliminary dissolving on powder to be sprayed, so that a preliminary dissolved powder solution is provided for the single-stage ejector, and the problem that dry powder is easy to block between the pre-dissolving mechanism and the spraying mixing mechanism when the spraying 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 is guaranteed to be rapidly and uniformly dissolved through the cooperation of the spray head and the disperser, the utilization rate of the powder is further improved, and a better powder spraying effect is obtained.
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 medicines, it is necessary to form a medicinal liquid by dissolution and then spray it to the corresponding site. For example, for personnel intensive public places, it is necessary to spray disinfectant to ensure that the local site meets the hygiene standards.
Currently, existing powder spraying devices generally include: the powder feeding mechanism and the spraying mechanism. The powder feeding mechanism is used for feeding the dried powder into the spraying mechanism directly, and the high-pressure water flow in the spraying mechanism takes away and mixes the dried powder to form a medicament solution and sprays the medicament solution to corresponding areas.
However, in the existing powder spraying device, the spraying mechanism has the problem of backflushing during operation, and a part of water flow with backflushing enters the powder feeding mechanism, so that dry powder is easy to wet, and a channel between the powder feeding mechanism and the spraying mechanism is easy to be blocked. Therefore, in view of the above problems, it is necessary to propose further solutions.
Disclosure of Invention
The invention aims to provide a powder spraying device which overcomes the defects in the prior art.
In order to solve the technical problems, the technical scheme of the invention is as follows:
a powder spraying device, comprising: the powder feeding mechanism, the pre-dissolving mechanism, the single-stage ejector and the 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 cylinder, and a pre-dissolving space is formed between the outlet end of the inner cylinder and the outlet end of the bottom of the outer cylinder;
the outlet end of the bottom of the outer cylinder 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 invention, the powder feeding mechanism comprises: the powder charging basket is communicated with a feeding port of the spiral conveyer, and a discharging port of the spiral conveyer is communicated with an inlet end of the inner barrel through the flow director.
As an improvement of the powder spraying device, the water inlet pipe extends into the outer cylinder, and the water inlet pipe in the inner part is connected with a spray head arranged towards the inner part of the outer cylinder.
As an improvement of the powder spraying device, the spray heads are distributed on two sides or the periphery of the inner cylinder in a central symmetry manner, 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, a disperser is also arranged in the inner cylinder, 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, the 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, and the pre-dissolving mechanism can be used for carrying out preliminary dissolving on powder to be sprayed, so that a preliminary dissolved powder solution is provided for the single-stage ejector, and the problem that dry powder is easy to block between the pre-dissolving mechanism and the spraying mixing mechanism when the spraying 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 is guaranteed to be rapidly and uniformly dissolved through the cooperation of the spray head and the disperser, the utilization rate of the powder is further improved, and a better powder spraying effect is obtained.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings that are required to be used in the embodiments or the description of the prior art will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments described in the present invention, and other drawings may be obtained according to the drawings without inventive effort to those skilled in the art.
FIG. 1 is a front view of one embodiment of a powder dispensing apparatus of the present invention;
Fig. 2 is an enlarged plan view of the pre-dissolution mechanism of the powder spraying apparatus of fig. 1.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
As shown in fig. 1 and 2, an embodiment of the present invention provides a powder spraying device, which includes: 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 to store and deliver powder to the pre-dissolution mechanism 20.
In this embodiment, the powder feeding mechanism 10 specifically includes: powder bucket 11, screw conveyor 12 and deflector 13.
Wherein, powder storage vat 11 is used for depositing dry powder, in order to be convenient for the transportation of powder, this powder storage vat 11 specifically can be a toper storage vat, and this toper storage vat upper portion size is great, and the lower part size is less, and the opening of this powder storage vat 11 sets up in the bottom. Thus, aggregation and powder feeding during powder feeding are facilitated, and the powder conveying efficiency is improved.
The bottom of the powder charging basket 11 is communicated with the feeding port of the screw conveyor 12, and the discharging port of the screw conveyor 12 is communicated with the inlet end of the inner barrel through a deflector 13. Thus, the powder is facilitated to be laterally fed to pre-dissolution mechanism 20 via screw conveyor 12 as described above. The screw conveyor 12 is of a conventional design, and the screw conveyor 12 is provided with a conveying cylinder, a screw rod arranged in the conveying cylinder and an external rotating motor in transmission connection with the screw rod. Thus, when the motor works, the screw rod pushes the powder to be transversely conveyed.
The pre-dissolving mechanism 20 is used for primarily dissolving powder to be sprayed, so as to provide primarily dissolved powder solution for the single-stage ejector 31, and further solve the problem that dry powder is easy to block between the pre-dissolving mechanism 20 and the single-stage ejector 31 when the single-stage ejector 31 works in the prior art.
In this embodiment, the pre-dissolving mechanism 20 includes: an inner tube 21, an outer tube 22, and a check valve 23.
Wherein the inner barrel 21 is for receiving powder from the powder feeding mechanism 10. Correspondingly, 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, powder is fed from the inlet end and falls down the inner barrel 21 to its outlet end.
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 a water inlet pipe 221. The water inlet pipe 221 extends to the inside of the outer tub 22, and the nozzle 222 provided toward the inside of the outer tub 22 is connected to the water inlet pipe 221 inside. In this manner, a flow of water for pre-dissolving the powder is provided through spray head 222, which can dissolve the powder falling from inner barrel 21 below the outlet end of inner barrel 21, thereby forming a pre-dissolving solution of powder that is provided to single stage ejector 31. At this time, a pre-dissolution space 220 is formed between the outlet end of the inner tube 21 and the outlet end of the bottom of the outer tube 22. Thus, the preliminary dissolution of the powder is facilitated, and the powder solution which is preliminarily dissolved is provided for the single-stage ejector 31, so that the problem that dry powder is easy to block between the pre-dissolution mechanism and the single-stage ejector when the single-stage ejector 31 works in the prior art is solved.
Further, in order to achieve sufficient dissolution of the powder as much as possible during the pre-dissolution process, the spray heads 222 are distributed on both sides or around the inner cylinder 21 in a central symmetry manner, and each spray head 222 on both sides or around is kept in an inclined arrangement. In this way, the water flow sprayed from the spray head 222 is also substantially symmetrical, so as to facilitate 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, so as 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 conical cylinder, the tip of the conical cylinder is downward, and water flows ejected from the nozzles 222 on both sides are respectively ejected onto the inner side wall of the conical 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, so that the sprayed water flow is uniformly distributed.
In order to enable uniform dispersion of the powder in the pre-dissolution space 220, a disperser 24 is also provided in the inner tube 21. Wherein the dispenser 24 is a tapered member with a tip end facing the powder feeding port. Preferably, the inner tube 21, the outer tube 22, the disperser 24 and the powder feeding port are coaxially arranged.
Thus, the powder entering from the inlet end of the inner tube 21 can be gradually dispersed on the tapered surface of the tapered member and uniformly dropped into the pre-dissolving space 220. Therefore, through high-speed rotation water flow and uniform distribution of the powder, the powder is quickly and uniformly dissolved in the pre-dissolving process, the utilization rate of the powder is further improved, and a better powder spraying effect is obtained.
In order to facilitate falling after powder dispersion, a gap is also provided between the lower end of the disperser 24 and the inner side wall of the inner tube 21. At this time, to form the above gap, the lower end of the disperser 24 is fixed in the inner cylinder 21 by a cross-shaped connecting piece 241. The connecting member 241 may be connected to the disperser 24 and the inner tube 21 by welding or the like.
The single stage ejector 31 is configured to receive the powder pre-dissolution solution from the pre-dissolution mechanism 20 to further mix the powder pre-dissolution solution and eject the solution 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 so as to be connected with an external high-pressure water pipe 40; the other end is a spraying end for spraying 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 via the check valve 23, thereby facilitating the thorough 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 connected with the high-pressure water pipe 40 connected with the water inlet end of the single-stage ejector 31. The needle valve 32 functions as: so that a part of the high-pressure water flow split from the plunger pump is provided for the pre-dissolving mechanism. The needle valve 32 has strong adjustability, controllable opening 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 through 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, the needle valve 32 can provide water flow for the water inlet pipe 221 on the outer cylinder 22, and 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 the uniform distribution of the sprayed water flow is realized.
When the powder spraying device of the embodiment works, high-pressure water flow is opened, the main ejector works, the needle valve at the bypass position is regulated, water flows through the adjustable fan-shaped spray head, and vortex water flow is formed in the outer barrel; starting a powder feeding mechanism, forming converging at the position of a flow director by powder fed by the powder feeding mechanism, dispersing the flowing powder in vortex water flow through a disperser, immediately and uniformly mixing, and then spraying by a main jet device to form powder solution with a certain proportion for spraying.
In summary, the powder spraying device provided by the invention is provided with the pre-dissolving mechanism, and the pre-dissolving mechanism can primarily dissolve powder to be sprayed, so that a primarily dissolved powder solution is provided for the single-stage ejector, and the problem that dry powder is easy to block between the pre-dissolving mechanism and the spraying mixing mechanism when the spraying mixing mechanism is in recoil 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 is guaranteed to be fully dissolved by the cooperation of the spray head and the disperser, the utilization rate of the powder is further improved, and a better powder spraying effect is obtained.
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 characteristics 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 disclosure describes embodiments, not every embodiment is provided with a separate embodiment, and that this description is provided for clarity only, and that the disclosure is not limited to the embodiments described in detail below, and that the embodiments described in the examples may be combined as appropriate to form other embodiments that will be apparent to those skilled in the art.
Claims (8)
1. A powder spraying device, the powder spraying device comprising: the powder feeding mechanism, the pre-dissolving mechanism, the single-stage ejector and the 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 disperser is also arranged in the inner cylinder, 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;
A water inlet pipe is arranged at the top of the outer cylinder, and a pre-dissolving space is formed between the outlet end of the inner cylinder and the outlet end of the bottom of the outer cylinder;
the outlet end of the bottom of the outer cylinder 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 dispensing apparatus of claim 1, wherein the powder feeding mechanism comprises: the powder charging basket is communicated with a feeding port of the spiral conveyer, and a discharging port of the spiral conveyer is communicated with an inlet end of the inner barrel through the flow director.
3. A powder spraying device as claimed in claim 1, in which the inlet conduit extends into the interior of the outer barrel, the inlet conduit of the interior being connected to a spray head disposed towards the interior of the outer barrel.
4. A powder spraying device according to claim 3, wherein the spray heads are centrally symmetrically distributed on both sides or around the inner barrel, and each spray head is maintained in an inclined arrangement.
5. The powder spraying device of claim 4, wherein the outer cylinder is a conical cylinder, and the water flow sprayed from each spray head covers the inner side wall of the conical cylinder.
6. The powder spraying device of claim 1, wherein the inner barrel, outer barrel, disperser and powder feed port are coaxially arranged.
7. The powder dispensing apparatus of claim 1, wherein the lower end of the disperser is secured in the inner barrel by a cross-shaped connector.
8. The powder dispensing apparatus of claim 1, wherein the bypass of the needle valve is further coupled to the inlet tube.
Priority Applications (1)
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CN202110881558.5A CN113492078B (en) | 2021-08-02 | 2021-08-02 | Powder spraying device |
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CN202110881558.5A CN113492078B (en) | 2021-08-02 | 2021-08-02 | Powder spraying device |
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CN113492078A CN113492078A (en) | 2021-10-12 |
CN113492078B true CN113492078B (en) | 2024-07-02 |
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CN202110881558.5A Active CN113492078B (en) | 2021-08-02 | 2021-08-02 | Powder spraying device |
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Citations (1)
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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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CN100460625C (en) * | 2006-09-28 | 2009-02-11 | 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 |
CN105080749B (en) * | 2015-08-14 | 2017-10-17 | 华南农业大学 | A kind of mixed medicine shower nozzle by motor control spraying concentration |
KR102102652B1 (en) * | 2018-05-10 | 2020-04-22 | 주식회사 리드파워 | Portable type low-pressure polyurethane foam spray machine |
CN110424011B (en) * | 2019-09-06 | 2021-07-30 | 武汉洛克斯模具技术有限公司 | Laser cladding 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 |
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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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