CN110896434A - Improve gas curtain system of intelligence slagging-off camera image quality - Google Patents
Improve gas curtain system of intelligence slagging-off camera image quality Download PDFInfo
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- CN110896434A CN110896434A CN201811067727.6A CN201811067727A CN110896434A CN 110896434 A CN110896434 A CN 110896434A CN 201811067727 A CN201811067727 A CN 201811067727A CN 110896434 A CN110896434 A CN 110896434A
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N23/00—Cameras or camera modules comprising electronic image sensors; Control thereof
- H04N23/50—Constructional details
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- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
- G03B17/00—Details of cameras or camera bodies; Accessories therefor
- G03B17/55—Details of cameras or camera bodies; Accessories therefor with provision for heating or cooling, e.g. in aircraft
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Abstract
The invention discloses an air curtain system for improving the imaging quality of an intelligent slagging-off camera, namely, an air flow accelerating device is additionally arranged on the outer layer of the existing camera, so that a central air curtain area is formed, the formed air curtain can prevent most of dust, splashed molten iron and slag, and the liquid level in a molten iron tank is not subjected to large impact fluctuation; in addition, arrange a plurality of industry fan around the camera and carry out the array and arrange, form one deck periphery air curtain region again, form complete air curtain wall with central air curtain regional combined action down, promote camera life and imaging quality when protecting the camera.
Description
Technical Field
The invention relates to a molten iron pretreatment process in a steelmaking technology, in particular to an air curtain system for improving the imaging quality of an intelligent slagging-off camera.
Background
In the molten iron pretreatment process in the metallurgical industry, molten iron needs to be subjected to treatments such as desulfurization, dephosphorization and desilicication by a powder injection or KR (mechanical stirring desulfurization) method, and particularly, a front slag skimming procedure and a rear slag skimming procedure are required before and after KR stirring so as to meet the production requirement of (ultra) clean steel.
At present, the hot metal slagging-off process at home and abroad is manual slagging-off by operators (beside or remotely). The working environment of the machine-side slag skimming is severe, which seriously affects the physical and psychological health of operators; remote slag skimming is greatly influenced by human factors, so that production quality fluctuation can be caused, and in order to meet the requirement of target sulfur content, the situation of slag skimming exists in actual production.
Therefore, the realization of intelligent automatic slag skimming is of great significance. The realization of intellectualization is mainly the application of machine vision, namely, a camera is adopted to carry out real-time monitoring, image recognition and analysis are carried out, a slag-raking path is optimized, and finally the operation of the slag-raking machine is controlled. Among them, the camera imaging quality is the most critical part of the whole system.
Especially, the camera is in a high-temperature and dust environment, and the lens is easy to be stained. At present, cooling protection measures such as water cooling, air sweeping and the like are adopted for a better camera, but the measures cannot solve the protection problem of a glass cover in front of a lens, and the phenomenon that splashed molten iron pollutes an outer protection cover of the camera still cannot be avoided.
In the existing open patent, if patent application No. 200920210812.3 discloses a thermal infrared imager protection casing, the cooling and dust keeper of thermal infrared imager under the high-temperature high-dust environment is proposed, adopt sealed mode and environmental high temperature isolation, and make the interior temperature of device keep the required operating temperature of thermal infrared imager all the time through gas cooling, form the protection air current wall through compressed gas stream before the thermal infrared imager camera lens simultaneously, the dust has been kept apart effectively, and have the function of automatic cleaning the camera lens dust, guaranteed that thermal infrared imager can be effective, stable work under the high-dust environment. However, the method cannot solve the protection problem of the outermost glass, and splashed molten iron and slag easily contaminate the glass cover, thereby reducing the imaging quality.
At present, the advanced cameras at home and abroad comprise protection measures such as water cooling, air sweeping and the like. However, when the glass is applied to the technical field of steel making, the high-temperature camera (especially the outer windshield) glass still generates the camera fouling phenomenon, and the cleaning of the lens outer glass is required in about one week or about or the replacement of the outer glass in about one month, which brings adverse effects to the imaging reliability and maintainability.
Disclosure of Invention
Aiming at the defects in the prior art, the invention aims to provide the air curtain system for improving the imaging quality of the intelligent slagging-off camera.
In order to achieve the purpose, the invention adopts the following technical scheme:
the utility model provides an improve intelligence and take off gas curtain system of sediment camera formation of image quality, includes: the camera body reaches outside air supply, still includes: the air flow accelerating device and a plurality of industrial fans;
the air flow accelerating device is communicated with the external air source and is designed into a multi-section cylinder convergent-divergent air passage, and comprises: a contraction section, a throat section, an expansion front section and an expansion rear section which are connected in sequence;
the contraction section is in a trumpet-shaped design, the large-caliber end of the contraction section is an air flue inlet, the air flue inlet is communicated with the external air source, and the small-caliber end of the contraction section is communicated with the front end of the throat section;
the expansion front section is in a trumpet-shaped design, and a small-caliber end of the expansion front section is communicated with the rear end of the throat section;
the rear expansion section is in a horn-shaped design, a small-caliber end of the rear expansion section is communicated with a large-caliber end of the front expansion section, and the large-caliber end of the rear expansion section is an air flue outlet;
the camera body is arranged in the throat section, the rear end of the camera body is arranged towards the direction of the contraction section, and the front end of the camera body is arranged towards the direction of the expansion front section;
the gas of the external gas source enters the gas flow accelerating device from the gas passage inlet and is sprayed out from the gas passage outlet, so that a central gas curtain area is formed;
the industrial fans are uniformly arranged around the central axis of the circle of the airflow accelerating device at intervals, and the air exhaust directions of the industrial fans are all arranged towards the central air curtain area, so that a peripheral air curtain area is formed;
the central air curtain area and the peripheral air curtain area form an air curtain wall.
The external gas source is inert gas or compressed air.
The lengths of the contraction section, the throat section, the expansion front section and the expansion rear section are all 10-1000 mm.
The angles of the contraction section, the expansion front section and the expansion rear section are all 10-150 degrees.
The pressure at the inlet of the air passage is 0.3-3 MPa, and the gas flow is 10-10000 Nm3/h。
The number of the industrial fans is 1-8.
The inert gas is argon or nitrogen.
In the technical scheme, the air curtain system for improving the imaging quality of the intelligent slagging-off camera adopts a multi-section cylindrical scaling flow field design, namely, a scaling structure design method is used for forming strong convection heat dissipation, so that a central air curtain area is formed in front of the camera, the heat dissipation of the camera is enhanced, and the air curtain system further has the following beneficial effects:
1) in the intelligent slag skimming procedure, the air curtain system adopts an enhanced air curtain technology to obviously improve the imaging quality, the service life and the reliability of the camera;
2) the air curtain system can obviously improve the maintainability of the camera, and reduce the maintenance times, time, expenses and the like.
Drawings
FIG. 1 is a schematic view of the construction of the air curtain system of the present invention;
FIG. 2 is a layout diagram of 3 industrial fans used in the air curtain system of the present invention;
fig. 3 is a layout diagram of 6 industrial fans used in the air curtain system of the present invention.
Detailed Description
The technical scheme of the invention is further explained by combining the drawings and the embodiment.
Referring to fig. 1 to 3, an air curtain system for improving the imaging quality of an intelligent slagging-off camera provided by the present invention includes: the camera comprises a camera body 1 and an external gas source, wherein the external gas source adopts inert gas, and the inert gas is argon or nitrogen. The air curtain system of the present invention further comprises: an air flow accelerating device 2 and a plurality of industrial fans 3.
Preferably, the airflow accelerating device 2 is communicated with the external air source and has a multi-segment cylindrical convergent-divergent air passage design, and the airflow accelerating device 2 includes: a contraction section 21, a throat section 22, an expansion front section 23 and an expansion rear section 24 which are connected in sequence.
Preferably, the contraction section 21 is in a trumpet-shaped design, the large-diameter end of the contraction section 21 is an air channel inlet, the air channel inlet is communicated with the external air source, and the small-diameter end of the contraction section 21 is communicated with the front end of the throat section 22.
Preferably, the expansion front section 23 is of a trumpet-shaped design, and a small-caliber end of the expansion front section 23 is communicated with a rear end of the throat section 22.
Preferably, the rear expansion section 24 is in a trumpet-shaped design, a small-caliber end of the rear expansion section 24 is communicated with a large-caliber end of the front expansion section 23, and a large-caliber end of the rear expansion section 24 is an air passage outlet.
Preferably, the camera body 1 is disposed in the throat section 22, the rear end of the camera body 1 is disposed toward the contraction section 21, and the front end of the camera body 1 is disposed toward the expansion front section 23.
Air flow accelerating device 2's scaling type air flue design, it is regional to form central air curtain at camera body 1 front end, adopt inert gas (or compressed air) to be accelerated in the air flue promptly, begin by the air flue entry, internal diameter design through dwindling gradually makes gas compression, when the narrow region of compressed gas via throat section 22 and camera body 1 shell formation again, can make the gas flow velocity reach high-speed, the main multistage extension district (expansion anterior segment 23 and expansion back end 24) of mending the increase of rethread internal diameter, thereby it is regional to form central air curtain.
Preferably, the industrial fans 3 are uniformly arranged around the central axis of the air flow accelerating device 2 at intervals, so that dust and molten iron slag can be effectively blocked, and the air exhaust directions of the industrial fans 3 face the central air curtain region, so that a peripheral air curtain region is formed, the blocking effect is enhanced, and the camera body 1 is protected to the maximum.
Preferably, under the combined action of the central air curtain region and the peripheral air curtain region, a complete air curtain wall is formed, and most of flue gas, dust and molten iron slag can be blocked outside the air curtain wall; the particle size of the splashed molten iron, the dust and the slag is micron-sized to centimeter-sized, and the size span is very large. The fine particles are easily blocked by the gas curtain and move along the gas flow direction, while the large-diameter molten iron slag and the like have large inertia but small flow velocity and can be blocked by the gas curtain wall.
In this embodiment, the required gas source is selected first, and nitrogen is a by-product of steel production, which is low in cost and sufficient in source, and therefore is used as the gas source in this embodiment.
Second, the parameters required for the formation of the central gas curtain region, including a nitrogen flow of 1000Nm at the gas passage inlet3The pressure at the entrance of the air passage is 0.6MPa, the diameter of the entrance of the air passage is 200mm, the length of the contraction section 21 is 300mm, the diameter of the throat section 22 is 120mm, the length of the throat section 22 is 230mm, the length of the expansion front section 23 is 180mm, the expansion angle is 60 degrees, the length of the expansion rear section 24 is 185mm, and the expansion angle is 120 degrees.
Thirdly, the peripheral air curtain region is formed to include 6 industrial fans 3 in cooperation, and the flow rate of each industrial fan 3 is 500Nm3And the wind direction points to the center of the camera body 1.
Finally, during the actual use period, the cleaning frequency of the camera body 1 can reach more than one time in one month, and meanwhile, the service life of the camera body 1 can be prolonged to three years.
It should be understood by those skilled in the art that the above embodiments are only for illustrating the present invention and are not to be used as a limitation of the present invention, and that changes and modifications to the above described embodiments are within the scope of the claims of the present invention as long as they are within the spirit and scope of the present invention.
Claims (7)
1. The utility model provides an improve intelligence and take off gas curtain system of sediment camera formation of image quality, includes: the camera body reaches outside air supply, its characterized in that still includes: the air flow accelerating device and a plurality of industrial fans;
the air flow accelerating device is communicated with the external air source and is designed into a multi-section cylinder convergent-divergent air passage, and comprises: a contraction section, a throat section, an expansion front section and an expansion rear section which are connected in sequence;
the contraction section is in a trumpet-shaped design, the large-caliber end of the contraction section is an air flue inlet, the air flue inlet is communicated with the external air source, and the small-caliber end of the contraction section is communicated with the front end of the throat section;
the expansion front section is in a trumpet-shaped design, and a small-caliber end of the expansion front section is communicated with the rear end of the throat section;
the rear expansion section is in a horn-shaped design, a small-caliber end of the rear expansion section is communicated with a large-caliber end of the front expansion section, and the large-caliber end of the rear expansion section is an air flue outlet;
the camera body is arranged in the throat section, the rear end of the camera body is arranged towards the direction of the contraction section, and the front end of the camera body is arranged towards the direction of the expansion front section;
the gas of the external gas source enters the gas flow accelerating device from the gas passage inlet and is sprayed out from the gas passage outlet, so that a central gas curtain area is formed;
the industrial fans are uniformly arranged around the central axis of the circle of the airflow accelerating device at intervals, and the air exhaust directions of the industrial fans are all arranged towards the central air curtain area, so that a peripheral air curtain area is formed;
the central air curtain area and the peripheral air curtain area form an air curtain wall.
2. The air curtain system for improving the imaging quality of the intelligent slagging-off camera of claim 1, wherein: the external gas source is inert gas or compressed air.
3. The air curtain system for improving the imaging quality of the intelligent slagging-off camera of claim 1, wherein: the lengths of the contraction section, the throat section, the expansion front section and the expansion rear section are all 10-1000 mm.
4. The air curtain system for improving the imaging quality of the intelligent slagging-off camera of claim 1, wherein: the angles of the contraction section, the expansion front section and the expansion rear section are all 10-150 degrees.
5. The air curtain system for improving the imaging quality of the intelligent slagging-off camera of claim 1, wherein: the pressure at the inlet of the air passage is 0.3-3 MPa, and the gas flow is 10-10000 Nm3/h。
6. The air curtain system for improving the imaging quality of the intelligent slagging-off camera of claim 1, wherein: the number of the industrial fans is 1-8.
7. The air curtain system for improving the imaging quality of the intelligent slagging-off camera of claim 2, wherein: the inert gas is argon or nitrogen.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811067727.6A CN110896434A (en) | 2018-09-13 | 2018-09-13 | Improve gas curtain system of intelligence slagging-off camera image quality |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201811067727.6A CN110896434A (en) | 2018-09-13 | 2018-09-13 | Improve gas curtain system of intelligence slagging-off camera image quality |
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| CN110896434A true CN110896434A (en) | 2020-03-20 |
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| CN201811067727.6A Pending CN110896434A (en) | 2018-09-13 | 2018-09-13 | Improve gas curtain system of intelligence slagging-off camera image quality |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111496255A (en) * | 2020-06-16 | 2020-08-07 | 中国航空制造技术研究院 | Laser selective melting image data acquisition device |
| CN114682772A (en) * | 2022-03-19 | 2022-07-01 | 杭州谱诚泰迪实业有限公司 | Automatic iron folding control method for torpedo ladle |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1554962A (en) * | 2003-12-27 | 2004-12-15 | 大连理工大学 | Optical lens protective device |
| CN201263963Y (en) * | 2008-09-27 | 2009-07-01 | 孙引欣 | Venturi type desulphurization and emission reduction device by atomized lime siphoning method |
| CN102430303A (en) * | 2011-09-26 | 2012-05-02 | 刘松 | Venturi tube type gas washer |
| CN202273683U (en) * | 2011-08-24 | 2012-06-13 | 中煤科工集团重庆研究院 | Slagging machine with functions of controlling and removing dust |
| CN107362637A (en) * | 2016-05-11 | 2017-11-21 | 成都兴宇精密铸造有限公司 | Cavityless casting flue gas processing device |
| CN107850017A (en) * | 2016-03-30 | 2018-03-27 | 刘炳男 | Internal combustion engine fluid accelerator |
-
2018
- 2018-09-13 CN CN201811067727.6A patent/CN110896434A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1554962A (en) * | 2003-12-27 | 2004-12-15 | 大连理工大学 | Optical lens protective device |
| CN201263963Y (en) * | 2008-09-27 | 2009-07-01 | 孙引欣 | Venturi type desulphurization and emission reduction device by atomized lime siphoning method |
| CN202273683U (en) * | 2011-08-24 | 2012-06-13 | 中煤科工集团重庆研究院 | Slagging machine with functions of controlling and removing dust |
| CN102430303A (en) * | 2011-09-26 | 2012-05-02 | 刘松 | Venturi tube type gas washer |
| CN107850017A (en) * | 2016-03-30 | 2018-03-27 | 刘炳男 | Internal combustion engine fluid accelerator |
| CN107362637A (en) * | 2016-05-11 | 2017-11-21 | 成都兴宇精密铸造有限公司 | Cavityless casting flue gas processing device |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111496255A (en) * | 2020-06-16 | 2020-08-07 | 中国航空制造技术研究院 | Laser selective melting image data acquisition device |
| CN111496255B (en) * | 2020-06-16 | 2022-06-10 | 中国航空制造技术研究院 | Laser selective melting image data acquisition device |
| CN114682772A (en) * | 2022-03-19 | 2022-07-01 | 杭州谱诚泰迪实业有限公司 | Automatic iron folding control method for torpedo ladle |
| CN114682772B (en) * | 2022-03-19 | 2024-02-23 | 杭州谱诚泰迪实业有限公司 | Automatic iron folding control method for torpedo tank |
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