CN110153087B - Anti-sticking self-cleaning device for annular-seam type ejector - Google Patents
Anti-sticking self-cleaning device for annular-seam type ejector Download PDFInfo
- Publication number
- CN110153087B CN110153087B CN201910429148.XA CN201910429148A CN110153087B CN 110153087 B CN110153087 B CN 110153087B CN 201910429148 A CN201910429148 A CN 201910429148A CN 110153087 B CN110153087 B CN 110153087B
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- Prior art keywords
- ejector
- spray
- inlet
- cleaning device
- dust
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- 238000004140 cleaning Methods 0.000 title claims abstract description 17
- 238000005507 spraying Methods 0.000 claims abstract description 25
- 239000000428 dust Substances 0.000 claims abstract description 22
- 239000003595 mist Substances 0.000 claims abstract description 15
- 239000007921 spray Substances 0.000 claims description 25
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 10
- 239000002245 particle Substances 0.000 claims description 3
- 230000009471 action Effects 0.000 claims description 2
- 238000001179 sorption measurement Methods 0.000 claims description 2
- 239000003245 coal Substances 0.000 abstract description 3
- 230000009467 reduction Effects 0.000 abstract description 2
- 239000000126 substance Substances 0.000 abstract 1
- 238000000034 method Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 238000009825 accumulation Methods 0.000 description 2
- 230000008676 import Effects 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000018044 dehydration Effects 0.000 description 1
- 238000006297 dehydration reaction Methods 0.000 description 1
- 238000009792 diffusion process Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000011144 upstream manufacturing Methods 0.000 description 1
- 238000009423 ventilation Methods 0.000 description 1
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D47/00—Separating dispersed particles from gases, air or vapours by liquid as separating agent
- B01D47/06—Spray cleaning
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B3/00—Cleaning by methods involving the use or presence of liquid or steam
- B08B3/02—Cleaning by the force of jets or sprays
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B3/00—Cleaning by methods involving the use or presence of liquid or steam
- B08B3/04—Cleaning involving contact with liquid
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21F—SAFETY DEVICES, TRANSPORT, FILLING-UP, RESCUE, VENTILATION, OR DRAINING IN OR OF MINES OR TUNNELS
- E21F5/00—Means or methods for preventing, binding, depositing, or removing dust; Preventing explosions or fires
- E21F5/02—Means or methods for preventing, binding, depositing, or removing dust; Preventing explosions or fires by wetting or spraying
- E21F5/04—Spraying barriers
Landscapes
- Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Geology (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Cleaning By Liquid Or Steam (AREA)
- Nozzles (AREA)
Abstract
The invention relates to the technical field of dust treatment, cleaning or coal mines, in particular to an anti-sticking self-cleaning device of an annular-seam type ejector, which comprises an ejector and a spraying part, wherein a spraying port of the spraying part is arranged in a mode of facing an inlet of the ejector so that mist sprayed by the spraying part can cover the inlet of the ejector. The covering means that the dispersed area of the atomized substance can cover the inlet of the ejector, so that the ejection performance reduction caused by dust adhesion can be avoided, and the self-cleaning function is realized.
Description
Technical Field
The invention relates to the technical field of dust treatment, cleaning or coal mines, in particular to an anti-sticking self-cleaning device of a circular seam type ejector.
Background
The annular gap type ejector mainly comprises a receiving chamber, a mixing chamber, a diffusion chamber, an annular gap and a chamfer angle. Compressed air is introduced into an annular cavity of the ejector by utilizing the wall attachment effect principle, throttling is carried out at an annular gap, high-speed airflow is generated through a chamfer with a certain structure, a central low-pressure area is generated in the process of flowing through the chamfer, air behind the ejector is introduced and mixed with high-speed jet flow of the compressed air under the action of gas continuity and negative pressure, and the mixture is ejected through a diffuser and is commonly used for ventilation and dust removal of mines. It does not need electric power, and the structure is small and exquisite, uses extensively. However, in application places such as mines and the like, a large amount of dust is often contained, and when the dust passes through the ejector along with airflow, the dust is easily adsorbed and bonded in the chamfered surface or the annular gap, so that the ejection capacity of the ejector is rapidly reduced, and even the ejector has to stop working for cleaning.
Disclosure of Invention
The invention aims to: the anti-sticking self-cleaning device of the annular-slot type ejector is provided for solving the problem that the existing ejector is poor in ejection effect due to dust attached to the inlet of the ejector.
In order to achieve the purpose, the invention adopts the technical scheme that:
the utility model provides an antiseized self-cleaning device of annular gap formula ejector, includes ejector and spraying part, spraying part's spout is in order to face the mode setting of ejector import is so that spraying part spun fog can cover the ejector import. Here, the covering means that the area of the dispersed mist can cover the inlet of the ejector.
Preferably, the spray opening of the spray member is provided so that the spray member sprays mist in a conical shape, thereby covering the injector inlet with a smaller amount of liquid.
Preferably, the axis of the spraying opening of the spraying component is overlapped with the axis of the ejector, the angle error is +/-10 degrees, and/or the distance error is +/-10 mm, the more accurate the overlap ratio of the axes is, the better the water saving effect can be realized, and particularly, the water shortage in the use environment can be realized.
Preferably, the cross section of the spray opening of the spraying component is directly 1 mm-3 mm, and the distance between the spray opening and the inlet of the ejector is 120 mm-230 mm.
Preferably, the taper angle of the cone is 30 ° to 55 °.
Preferably, the mist has a particle diameter of 100 μm or less.
In conclusion, due to the adoption of the technical scheme, the beneficial effects of the application are as follows: spraying is continuously sprayed to an inlet of the ejector so that water drops are formed on the wall surface of the ejector after the spraying is contacted with the wall surface of the ejector, dust on the wall surface is adsorbed by the water drops so as to be separated from the wall surface of the ejector, and the water drops containing the dust are adsorbed by the ejector under the adsorption force of the ejector and are discharged by the ejector, so that dust is difficult to adhere to a fluid pipe cavity channel of the ejector, and the performance reduction of the ejector caused by excessive dust adhesion can be avoided; compared with the method of directly adopting continuous jet flow for cleaning, the method has the advantages that the performance of the ejector cannot be influenced, the effective ejection cross-sectional area of the ejector can be reduced by directly adopting the jet flow, the ejection performance is reduced, even the continuous flow pattern of the ejector is easily blocked in the ejector, and the problem to be solved by the method cannot be solved; in addition, the scheme of the application is applied to the coal mine dust treatment technology, a small amount of dust which is not completely treated at the upstream can be intercepted, when the dust passes through the ejector, the dust is wetted by spraying and is removed in the downstream dehydration device, and therefore the dust removal efficiency is improved.
Drawings
FIG. 1 is a schematic structural view of an anti-sticking self-cleaning device of a circular-seam injector according to the application;
the labels in the figure are: 100-closed pipe cavity, 200-spraying component, 210-spraying port, 220-mist and 300-ejector.
Detailed Description
The present invention will be described in detail below with reference to the accompanying drawings.
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
Referring to fig. 1, the anti-sticking self-cleaning device for the circular-seam injector comprises a circular-seam injector (300) and a spraying part (200), wherein a spraying port (210) of the spraying part (200) is arranged in a mode of facing an inlet of the injector (300) so that mist (220) sprayed by the spraying part (200) can cover the inlet of the injector (300). The inlet of the circular seam ejector (300) is provided with a gradual inclined plane to enable the inlet to be gradually reduced, an annular groove is arranged behind the inclined plane inlet, the dust accumulation part mainly comprises the inclined plane and the annular groove of the inlet of the ejector (300), and the circular seam ejector needs to be taken down for cleaning after the dust accumulation is serious. According to the spray nozzle, the spray part (200) is adopted to spray the mist (220), the sprayed mist (220) is in a conical shape with a conical angle of 30-55 degrees in space, and the inlet of the spray part (200) can be covered by the conical mist (220) so that the mist (220) can be sprayed onto the spray nozzle without dead angles. The axis of the spray port (210) of the spraying component (200) is coincident with the axis of the ejector (300), and complete coincidence is difficult to achieve in practice, the scheme operates with an angle error of +/-10 degrees and a distance error of +/-10 mm, the section of the spray port (210) of the spraying component (200) is directly 1 mm-3 mm, and the distance between the spray port (210) and the inlet of the ejector (300) is 120 mm-230 mm. The mist (220) has a particle diameter of 100 μm or less, and preferably is water mist, and the spraying part (200) may be a solid nozzle or a low-pressure solid nozzle as long as it can generate water mist.
Any modification, equivalent replacement, and improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (3)
1. An anti-sticking self-cleaning device of a circular-seam injector is characterized by comprising an injector (300) and a spraying part (200), the spray outlet (210) of the spray part (200) is arranged in a manner of facing the inlet of the ejector (300), the spray opening (210) of the spraying component (200) is arranged to enable the spraying component (200) to spray mist (220) distributed in a cone shape, the cone angle of the cone is 30-55 degrees, the axis of the spray port (210) of the spray component (200) is coincident with the axis of the ejector (300), spray is continuously sprayed to the inlet of the ejector (300) so that the spray is in contact with the wall surface of the ejector (300) and then forms water drops on the wall surface of the ejector (300), the water drops adsorb dust on the wall surface to enable the dust to be separated from the wall surface of the ejector (300), and the water drops containing dust are adsorbed by the ejector (300) under the action of the adsorption force of the ejector (300) and then are discharged from the ejector (300).
2. The anti-sticking self-cleaning device of the circular-seam injector according to claim 1, characterized in that the diameter of the section of the spray outlet (210) of the spray part (200) is 1 mm-3 mm, and the distance between the spray outlet (210) and the inlet of the injector (300) is 120 mm-230 mm.
3. The annular-slot ejector anti-sticking self-cleaning device according to claim 2, wherein the particle diameter of the mist (220) is less than or equal to 100 μm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910429148.XA CN110153087B (en) | 2019-05-22 | 2019-05-22 | Anti-sticking self-cleaning device for annular-seam type ejector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910429148.XA CN110153087B (en) | 2019-05-22 | 2019-05-22 | Anti-sticking self-cleaning device for annular-seam type ejector |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110153087A CN110153087A (en) | 2019-08-23 |
| CN110153087B true CN110153087B (en) | 2021-11-30 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910429148.XA Active CN110153087B (en) | 2019-05-22 | 2019-05-22 | Anti-sticking self-cleaning device for annular-seam type ejector |
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| CN (1) | CN110153087B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114307501A (en) * | 2022-01-04 | 2022-04-12 | 中煤科工集团重庆研究院有限公司 | Antiseized patching machine dust collector |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102918326A (en) * | 2010-06-11 | 2013-02-06 | 三菱重工环境·化学工程株式会社 | Melting equipment |
| CN204338392U (en) * | 2014-12-13 | 2015-05-20 | 杭州隆达真空设备有限公司 | Raise steam injector |
| GB2523277A (en) * | 2011-04-11 | 2015-08-19 | D C Norris & Company Ltd | Apparatus and method for processing food |
| CN105312969A (en) * | 2015-10-26 | 2016-02-10 | 广东科达洁能股份有限公司 | Ceramic tile surface treatment method and ceramic tile surface treatment equipment |
-
2019
- 2019-05-22 CN CN201910429148.XA patent/CN110153087B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102918326A (en) * | 2010-06-11 | 2013-02-06 | 三菱重工环境·化学工程株式会社 | Melting equipment |
| GB2523277A (en) * | 2011-04-11 | 2015-08-19 | D C Norris & Company Ltd | Apparatus and method for processing food |
| CN204338392U (en) * | 2014-12-13 | 2015-05-20 | 杭州隆达真空设备有限公司 | Raise steam injector |
| CN105312969A (en) * | 2015-10-26 | 2016-02-10 | 广东科达洁能股份有限公司 | Ceramic tile surface treatment method and ceramic tile surface treatment equipment |
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| Publication number | Publication date |
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| CN110153087A (en) | 2019-08-23 |
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