Sight glass device and side blowing furnace
By adding fill light channels and semi-transparent half-mirror in the visual mirror device, combining light sensors and image acquisition equipment, the problem of blurred vision during the oxygen-rich side blower smelting process is solved, safety and visibility are improved, and visibility is reduced. The risk of scalds is reduced and electricity is saved.
Patent Information
- Application Number
- CN202420183041.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-01-25
- Publication Date
- 2024-12-17
- Estimated Expiration
- 2034-01-25
AI Technical Summary
During the oxygen-rich side blower smelting process during hazardous waste treatment, the blurred vision in the furnace leads to the inability to clearly observe the reaction situation, and there is a risk of burns and inhaling harmful gases.
A visual mirror device is designed to provide additional lighting by adding fill light channels in the observation channel and installing a semi-transparent half mirror, and adjusting the brightness of the light source through a light sensor when necessary, combining the image acquisition equipment and the air inlet channel to purify it. Air and cool down, enhancing visibility and safety.
It effectively enhances the visibility of material reactions in the furnace, reduces the risk of workers contacting equipment, improves safety and service life of equipment, and saves electricity consumption.
Smart Images
Figure CN222187860U_ABST
Abstract
Description
Technical Field
[0001] The present application relates to the technical field of incineration equipment, and in particular to a sight glass device and a side-blowing furnace. Background Art
[0002] In recent years, as people's environmental awareness has increased, society has paid more and more attention to the treatment of hazardous waste. The government and enterprises have actively promoted environmental protection concepts and encouraged the public to participate in the classification and recycling of hazardous waste to reduce the generation of hazardous waste and environmental pollution. This has put forward higher requirements for the hazardous waste treatment industry, prompting the industry to pay more attention to sustainable development and social responsibility. The hazardous waste treatment industry is also constantly promoting technological innovation and application.
[0003] In the reduction furnace smelting process of hazardous waste treatment, the oxygen-enriched side-blowing furnace has become the method adopted by major hazardous waste treatment companies due to its advantages such as strong raw material adaptability, high metal recovery rate, good environmental protection effect, and high level of automation. During the use of the side-blowing furnace, it is necessary to frequently check the reaction of the materials in the furnace to adjust the temperature in the furnace to avoid the temperature in the furnace being too high or too low. The traditional method is to directly open the blast port cover of the furnace body and observe the reaction in the furnace through the blast port. The defects of this method mainly include the following points:
[0004] 1) High temperature will cause the surface temperature of the metal furnace to be extremely high, and direct contact with the blast port cover of the furnace may cause serious burns;
[0005] 2) A large amount of high-temperature gas and smoke will be generated during the smelting process, which may contain harmful substances and metal particles. Opening the tuyere cover may cause the human body to directly inhale these gases and smoke, thereby causing damage to the human respiratory system.
[0006] In order to solve the above problems, a sight glass is generally installed outside the furnace wall, through which the reaction inside the furnace can be directly observed without opening the tuyere cover and without direct contact with the furnace wall, thus avoiding burns and direct inhalation of smoke.
[0007] However, in the actual reduction smelting process, when the vision in the furnace is blurred, it is impossible to clearly observe the reaction in the furnace directly through the sight glass; there are two main reasons for the blurred vision in the furnace: first, as the temperature in the furnace continues to rise, the color of the radiation spectrum will appear dull blue (containing a large amount of invisible ultraviolet light), resulting in weaker visible light; second, when the materials in the furnace react violently, a large amount of smoke and dust will be produced, resulting in blurred vision. Summary of the invention
[0008] The present application provides a sight glass device and a side-blown furnace, which solve the problem that in the actual reduction smelting process, when the view in the furnace is blurry, the reaction conditions in the furnace cannot be clearly observed directly through the sight glass.
[0009] The first aspect of the present application provides a sight glass device, comprising an observation channel installed on the outside of an observation hole in a furnace wall, wherein the side of the observation channel is connected to a fill light channel, and a light source is installed at the entrance of the fill light channel; a first semi-transparent and semi-reflective mirror is obliquely installed in the observation channel at a position corresponding to the fill light channel, and after the light emitted by the light source enters the fill light channel, it is reflected by the first semi-transparent and semi-reflective mirror and enters the observation channel, and then enters the inside of the furnace body through the observation hole; after the light inside the furnace body enters the observation channel through the observation hole, it is transmitted by the first semi-transparent and semi-reflective mirror, and then emitted from the observation end of the observation channel.
[0010] In the technical solution provided in the present application, a fill-light channel is added on the side of the observation channel, and a first semi-transparent and semi-reflective mirror is installed at the connection between the observation channel and the fill-light channel. When the vision inside the furnace is blurry, the furnace can be illuminated by the light source at the entrance of the fill-light channel to enhance the visibility inside the furnace and ensure that the workers can clearly observe the reaction of the material in the furnace directly at the observation end of the observation channel.
[0011] In some embodiments, a detection channel is connected to the side of the observation channel, and the detection channel is located between the fill light channel and the observation end. A light sensor is installed at the exit of the detection channel, and the light sensor and light source are respectively connected to the control host; a second semi-transparent and semi-reflective mirror is obliquely installed at the position corresponding to the detection channel in the observation channel, and a part of the light transmitted through the first semi-transparent and semi-reflective mirror is reflected by the second semi-transparent and semi-reflective mirror into the detection channel, and is captured by the light sensor at the exit of the detection channel; the other part is emitted from the observation end of the observation channel after being transmitted through the second semi-transparent and semi-reflective mirror; the light sensor can detect the intensity of visible light in the furnace in real time. When it is detected that the visible light in the furnace is weak, the light source can be controlled by the control host to increase the brightness. When it is detected that the visible light in the furnace is strong, the light source can be controlled by the control host to reduce the brightness. Under the premise of ensuring a clear line of sight in the furnace, the power consumption can be saved to the maximum extent.
[0012] In some embodiments, an image acquisition device is installed at the observation end of the observation channel, and the image acquisition device is connected to a display. Image information inside the furnace can be acquired through the image acquisition device and displayed on the display. There is no need for workers to observe at the observation end of the observation channel, so the reaction of materials in the furnace can be observed more conveniently, avoiding the risk of burns caused by direct contact between workers and equipment, thereby improving the safety of the equipment.
[0013] In some embodiments, the side of the observation channel is connected to an air inlet channel, the outlet of the air inlet channel is inclined toward the observation hole, and a blower is installed at the inlet of the air inlet channel; by integrating the air inlet channel with the observation channel, there is no need to open a separate air inlet channel, thereby reducing the space occupied by the equipment; in addition, the wind blown out of the air inlet channel can purify the air in the observation channel to prevent smoke and dust from being retained in the observation channel and affecting the line of sight; and the wind blown out of the air inlet channel can also cool the observation channel to prevent the lens from being damaged by excessive temperature.
[0014] In some embodiments, a lens is sealed and installed in the observation channel, and the lens is located inside the observation channel between the air inlet channel and the fill-light channel; by sealing and installing the lens inside the observation channel between the air inlet channel and the fill-light channel, smoke can be further blocked from entering the observation channel and affecting the line of sight, and the lens can also guide the wind blown out of the air inlet channel so that all the wind enters the furnace.
[0015] In some embodiments, the optical axis of the lens coincides with the central axis of the observation channel. The purpose of this design is to reduce the reflection of light coaxial with the observation channel on the lens surface, thereby enhancing the light passing through the lens and improving the brightness of the field of view at the observation end.
[0016] In some embodiments, the surface of the lens is coated with an anti-reflection film, which can further enhance the light passing through the lens and improve the brightness of the field of view at the observation end.
[0017] In some embodiments, a channel joint is fixedly installed in the observation hole, and the channel joint is detachably connected to the observation channel via a flange, and a first thermal insulation gasket is provided on the connecting end face of the channel joint and the observation channel; by setting a channel joint connected to the observation channel in the observation hole and providing a first thermal insulation gasket on the connecting end face, the heat of the furnace body can be effectively blocked, and the heat transferred to the detection channel can be reduced, thereby avoiding excessive temperature in the detection channel that damages the lens or burns the workers.
[0018] In some embodiments, the flange of the channel joint and the connecting end face of the observation channel is detachably connected by bolts and nuts, and a second thermal insulation gasket is provided between the flange and the bolts and nuts; by providing a second thermal insulation gasket between the flange and the bolts and nuts, the thermal insulation effect can be further improved and the temperature of the observation channel can be reduced.
[0019] A second aspect of the present application provides a side-blown furnace, wherein the sight glass device is installed on the outer side of the furnace wall of the side-blown furnace.
[0020] The above description is only an overview of the technical solution of the present application. In order to more clearly understand the technical means of the present application, it can be implemented in accordance with the contents of the specification. In order to make the above and other purposes, features and advantages of the present application more obvious and easy to understand, the specific implementation methods of the present application are listed below. BRIEF DESCRIPTION OF THE DRAWINGS
[0021] The drawings in this application are used to illustrate preferred embodiments, so that those skilled in the art can clearly understand various other advantages and benefits, and should not be considered as limitations of this application. In addition, the same reference numerals are used throughout the drawings to represent the same or similar components.
[0022] Figure 1 This is a schematic diagram of the installation structure of a mirror device in one embodiment of the present application;
[0023] Figure 2 This is a schematic diagram of the internal structure of a mirror device in one embodiment of the present application;
[0024] Figure 3 for Figure 2 Enlarged view of part A in the middle;
[0025] Icons: 1. Furnace wall; 2. Observation channel; 3. Fill light channel; 4. Light source; 5. First semi-transparent and semi-reflective mirror; 6. Detection channel; 7. Light sensor; 8. Second semi-transparent and semi-reflective mirror; 9. Image acquisition device; 10. Air inlet channel; 11. Lens; 12. Channel joint; 13. Flange; 14. First thermal insulation gasket; 15. Bolt; 16. Nut; 17. Second thermal insulation gasket. DETAILED DESCRIPTION
[0026] The technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with specific embodiments. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.
[0027] Reference to "embodiments" herein means that a particular feature, structure, or characteristic described in conjunction with the embodiments may be included in at least one embodiment of the present application. The appearance of the phrase in various locations in the specification does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment that is mutually exclusive with other embodiments. It is explicitly and implicitly understood by those skilled in the art that the embodiments described herein may be combined with other embodiments.
[0028] In the description of the embodiments of the present application, the technical terms "first", "second", etc. are only used to distinguish different objects, and cannot be understood as indicating or implying relative importance or implicitly indicating the number, specific order or primary and secondary relationship of the indicated technical features. In the description of the embodiments of the present application, the meaning of "multiple" is more than two (including two), unless otherwise clearly and specifically defined.
[0029] In the description of the embodiments of the present application, the term "and / or" is only a description of the association relationship of the associated objects, indicating that there may be three relationships. For example, A and / or B can represent: A exists alone, A and B exist at the same time, and B exists alone. In addition, the character " / " in this article generally indicates that the associated objects before and after are in an "or" relationship.
[0030] In the description of the embodiments of the present application, the technical terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, which are only for the convenience of describing the embodiments of the present application and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the embodiments of the present application.
[0031] In the description of the embodiments of the present application, unless otherwise clearly specified and limited, technical terms such as "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, and it can be the internal connection of two elements or the interaction relationship between two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the embodiments of the present application can be understood according to the specific circumstances.
[0032] See also Figure 1-Figure 3 According to a first aspect of an embodiment of the present application, there is provided a sight glass device, comprising an observation channel 2 installed outside an observation hole in a furnace wall 1, wherein the side of the observation channel 2 is connected to a fill light channel 3, and a light source 4 is installed at the entrance of the fill light channel 3; a first semi-transparent and semi-reflective mirror 5 is obliquely installed at a position corresponding to the fill light channel 3 in the observation channel 2, and the light emitted by the light source 4 enters the fill light channel 3, is reflected by the first semi-transparent and semi-reflective mirror 5, enters the observation channel 2, and then enters the inside of the furnace body from the observation hole; the light inside the furnace body enters the observation channel 2 from the observation hole, is transmitted by the first semi-transparent and semi-reflective mirror 5, and then is emitted from the observation end of the observation channel 2.
[0033] In the technical solution provided in the present application, a fill light channel 3 is added to the side of the observation channel 2, and a first semi-transparent and semi-reflective mirror 5 is installed at the connection between the observation channel 2 and the fill light channel 3. When the vision inside the furnace is blurry, the furnace can be illuminated by the light source 4 at the entrance of the fill light channel 3 to enhance the visibility inside the furnace and ensure that the workers can clearly observe the reaction of the material in the furnace directly at the observation end of the observation channel 2.
[0034] In a specific embodiment, the brightness of the light source 4 is adjustable within the range of 500 to 2000 lumens. The brightness of the light source 4 can be adjusted according to actual needs, so as to ensure a clear field of view at the observation end and save electricity as much as possible.
[0035] Please continue reading Figure 1 , Figure 2 In some embodiments, a detection channel 6 is connected to the side of the observation channel 2, and the detection channel 6 is located between the fill light channel 3 and the observation end. A light sensor 7 is installed at the outlet of the detection channel 6, and the light sensor 7 and the light source 4 are respectively connected to the control host; a second semi-transparent and semi-reflective mirror 8 is obliquely installed at the position corresponding to the detection channel 6 in the observation channel 2, and a part of the light transmitted through the first semi-transparent and semi-reflective mirror 5 is reflected by the second semi-transparent and semi-reflective mirror 8 to enter the detection channel 6, and is captured by the light sensor 7 at the outlet of the detection channel 6; the other part is transmitted through the second semi-transparent and semi-reflective mirror 8 and then emitted from the observation end of the observation channel 2; the light sensor 7 can detect the intensity of visible light in the furnace in real time. When it is detected that the visible light in the furnace is weak, the light source 4 can be controlled by the control host to increase the brightness. When it is detected that the visible light in the furnace is strong, the light source 4 can be controlled by the control host to reduce the brightness. Under the premise of ensuring a clear line of sight in the furnace, the power consumption can be saved to the maximum extent.
[0036] In a specific embodiment, the reflectivity of the second semi-transparent and semi-reflective mirror 8 is much lower than the transmittance, so as to avoid excessive light being reflected into the detection channel 6, thereby wasting the light source 4.
[0037] Please continue reading Figure 1 , Figure 2 In some embodiments, an image acquisition device 9 (such as a camera) is installed at the observation end of the observation channel 2. The image acquisition device 9 is connected to a display. Image information in the furnace can be acquired through the image acquisition device 9 and displayed on the display. Workers do not need to observe at the observation end of the observation channel 2. The reaction of materials in the furnace can be observed more conveniently, avoiding the risk of burns caused by direct contact between workers and equipment, thereby improving the safety of the equipment.
[0038] Please continue reading Figure 1 , Figure 2 In some embodiments, the side of the observation channel 2 is connected to an air inlet channel 10, the outlet of the air inlet channel 10 is inclined toward the observation hole, and a blower is installed at the inlet of the air inlet channel 10; by integrating the air inlet channel 10 with the observation channel 2, there is no need to open a separate air inlet channel 10, thereby reducing the space occupied by the equipment; in addition, the wind blown out of the air inlet channel 10 can purify the air in the observation channel 2 to prevent smoke and dust from being retained in the observation channel 2 and affecting the line of sight; and the wind blown out of the air inlet channel 10 can also cool down the observation channel 2 to prevent the lens from being damaged by excessive temperature.
[0039] Please continue reading Figure 2 In some embodiments, a lens 11 is sealed and installed in the observation channel 2, and the lens 11 is located inside the observation channel 2 between the air inlet channel 10 and the fill light channel 3; by sealing and installing the lens 11 inside the observation channel 2 between the air inlet channel 10 and the fill light channel 3, smoke can be further blocked from entering the observation channel 2 and affecting the line of sight, and the lens 11 can also guide the wind blown out of the air inlet channel 10 so that all the wind enters the furnace.
[0040] In some embodiments, the lens 11, the first semi-transparent mirror 5, and the second semi-transparent mirror 8 are all made of high-temperature resistant and highly light-transmitting materials.
[0041] In some embodiments, the optical axis of the lens 11 coincides with the central axis of the observation channel 2. The purpose of this design is to reduce the reflection of light coaxial with the observation channel 2 on the surface of the lens 11, thereby enhancing the light passing through the lens 11 and improving the brightness of the field of view at the observation end.
[0042] In some embodiments, the surface of the lens 11 is coated with an anti-reflection film, which can further enhance the light passing through the lens 11 and improve the brightness of the field of view at the observation end.
[0043] Please continue reading Figures 1 to 3 In some embodiments, a channel joint 12 is fixedly installed in the observation hole, and the channel joint 12 is detachably connected to the observation channel 2 through a flange 13. A first thermal insulation gasket 14 is provided on the connecting end surface of the channel joint 12 and the observation channel 2. By setting the channel joint 12 in the observation hole to connect with the observation channel 2 and setting the first thermal insulation gasket 14 on the connecting end surface, the heat of the furnace body can be effectively blocked, the heat transferred to the detection channel 6 can be reduced, and the detection channel 6 can be prevented from being overheated and damaging the lens or scalding the workers.
[0044] Please continue reading Figure 3 In some embodiments, the channel joint 12 is detachably connected to the flange 13 of the connecting end face of the observation channel 2 by bolts 15 and nuts 16, and a second thermal insulation gasket 17 is provided between the flange 13 and the bolts 15 and nuts 16; by providing the second thermal insulation gasket 17 between the flange 13 and the bolts 15 and nuts 16, the thermal insulation effect can be further improved and the temperature of the observation channel 2 can be reduced.
[0045] A second aspect of an embodiment of the present application provides a side-blown furnace, wherein the sight glass device is installed on the outer side of a furnace wall 1 of the side-blown furnace.
[0046] The working process of the mirror device of the present embodiment is as follows:
[0047] Please continue reading Figure 2 , Figure 2 The middle arrow indicates the light propagation path; after the light emitted by the light source 4 enters the fill light channel 3, it is reflected by the first semi-transparent and semi-reflective mirror 5 and enters the observation channel 2, and then enters the inside of the furnace body from the observation hole after passing through the lens 11; the light inside the furnace body enters the observation channel 2 from the observation hole, and after passing through the lens 11 and the first semi-transparent and semi-reflective mirror 5 in turn, a part of it is reflected by the second semi-transparent and semi-reflective mirror 8 and enters the detection channel 6, and is captured by the light sensor 7 at the exit of the detection channel 6; the other part is captured by the human eye or the image acquisition device 9 at the observation end of the observation channel 2 after being transmitted through the second semi-transparent and semi-reflective mirror 8; the light sensor 7 detects the brightness of the visible light in real time, and the control host adjusts the brightness of the light source 4 according to the brightness of the visible light, so as to save energy consumption as much as possible while ensuring a clear field of view at the observation end; the wind blown out of the air inlet duct can bring the smoke and dust in the detection channel 6 into the furnace after entering the detection channel 6, so as to avoid the smoke and dust trapped in the detection channel 6 affecting the clarity of the field of view at the observation end.
[0048] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present application, rather than to limit them. Although the present application has been described in detail with reference to the aforementioned embodiments, a person of ordinary skill in the art should understand that the technical solutions described in the aforementioned embodiments can still be modified, or some or all of the technical features therein can be replaced by equivalents; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present application, and they should all be included in the scope of the claims and specification of the present application. In particular, as long as there is no contradiction or conflict, the various technical features mentioned in the embodiments can be combined in any way. The present application is not limited to the specific embodiments disclosed herein, but includes all technical solutions that fall within the scope of the claims.
Claims
1. A mirror device, characterized in that: The invention comprises an observation channel (2) installed outside an observation hole of a furnace wall (1); the side of the observation channel (2) is connected to a supplementary light channel (3); a light source (4) is installed at the entrance of the supplementary light channel (3); a first semi-transparent and semi-reflective mirror (5) is installed obliquely in the observation channel (2) at a position corresponding to the supplementary light channel (3); after the light emitted by the light source (4) enters the supplementary light channel (3), it is reflected by the first semi-transparent and semi-reflective mirror (5) and enters the observation channel (2), and then enters the interior of the furnace body through the observation hole; after the light inside the furnace body enters the observation channel (2) through the observation hole, it is transmitted by the first semi-transparent and semi-reflective mirror (5) and then emitted from the observation end of the observation channel (2).
2. A mirror device according to claim 1, characterized in that: The side of the observation channel (2) is connected to a detection channel (6), and the detection channel (6) is located between the supplementary light channel (3) and the observation end. A light sensor (7) is installed at the outlet of the detection channel (6), and the light sensor (7) and the light source (4) are respectively connected to the control host; a second semi-transparent and semi-reflective mirror (8) is obliquely installed at a position corresponding to the detection channel (6) in the observation channel (2); a part of the light transmitted through the first semi-transparent and semi-reflective mirror (5) is reflected by the second semi-transparent and semi-reflective mirror (8) into the detection channel (6), and is captured by the light sensor (7) at the outlet of the detection channel (6); the other part is transmitted through the second semi-transparent and semi-reflective mirror (8) and then emitted from the observation end of the observation channel (2).
3. A mirror device according to claim 1, characterized in that: An image acquisition device (9) is installed at the observation end of the observation channel (2), and the image acquisition device (9) is connected to a display.
4. A mirror device according to claim 1, characterized in that: The side of the observation channel (2) is connected to an air inlet channel (10), the outlet of the air inlet channel (10) is inclined toward the observation hole, and a blower is installed at the inlet of the air inlet channel (10).
5. A mirror device according to claim 4, characterized in that: A lens (11) is sealed and installed in the observation channel (2); the lens (11) is located inside the observation channel (2) between the air inlet channel (10) and the fill light channel (3).
6. A mirror device according to claim 5, characterized in that: The optical axis of the lens (11) coincides with the central axis of the observation channel (2).
7. A mirror device according to claim 5, characterized in that: The surface of the lens (11) is coated with an anti-reflection film.
8. A mirror device according to claim 1, characterized in that: A channel joint (12) is fixedly installed in the observation hole, and the channel joint (12) is detachably connected to the observation channel (2) via a flange (13). A first heat-insulating gasket (14) is provided on the connecting end surface between the channel joint (12) and the observation channel (2).
9. A mirror device according to claim 8, characterized in that: The channel joint (12) and the flange (13) of the connecting end face of the observation channel (2) are detachably connected via bolts (15) and nuts (16), and a second heat insulating gasket (17) is provided between the flange (13) and the bolts (15) and nuts (16).
10. A side-blown furnace, characterized in that: The outer side of the furnace wall (1) of the side-blown furnace is provided with a sight glass device as claimed in any one of claims 1 to 9.