High-temperature overflow port structure of electrolytic aluminum waste cathode carbon block high-temperature treatment device
By designing a sleeve, shaft, bushing, and valve plate structure in the high-temperature treatment device, and utilizing spring-assisted valve plate rotation to achieve directional gas discharge, the problem of the high-temperature treatment device being unable to exhaust gas in a timely manner is solved, ensuring stable gas pressure within the device and guaranteeing the safe and efficient operation of combustion.
Patent Information
- Application Number
- CN202520270651.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-02-20
- Publication Date
- 2026-02-10
- Estimated Expiration
- 2035-02-20
AI Technical Summary
Existing high-temperature treatment devices cannot exhaust gas in a timely manner, resulting in a drop in gas pressure, which is not conducive to the combustion process.
A high-temperature overflow port structure was designed, including a first connecting pipe, a second connecting pipe, a sleeve, a shaft, a sleeve, and a valve plate. The valve plate rotates with the assistance of a spring, opening to exhaust gas when the gas pressure is high and automatically closing when the gas pressure is low, thus achieving directional gas discharge.
This effectively solved the problem of reduced gas pressure, ensuring that the gas inside the high-temperature treatment device could be discharged in a timely manner, thus guaranteeing the safety and efficiency of the combustion process.
Smart Images
Figure CN223895046U_ABST
Abstract
Description
Technical Field
[0001] This application relates to the field of cathode carbon block treatment technology, and in particular to a high-temperature overflow port structure of a high-temperature treatment device for waste cathode carbon blocks from electrolytic aluminum. Background Technology
[0002] The cathode carbon blocks used in the electrolytic aluminum process are classified as industrial toxic and hazardous waste. Their main hazard lies in the large amounts of soluble fluorides and cyanides they contain. Cathode waste must undergo harmless treatment, and the main treatment technologies include flotation, chemical methods, high-temperature methods, or direct combustion.
[0003] High-temperature treatment of cathode carbon blocks mainly utilizes high and ultra-high temperatures to decompose harmful substances in waste cathode carbon blocks, while simultaneously recovering high-purity carbon. This method, through high-temperature incineration, can effectively remove toxic substances from the cathode carbon blocks and potentially achieve carbon recycling. However, during high-temperature treatment, the burning of the cathode carbon blocks causes a rise in gas pressure within the treatment device. If venting is not timely, the device risks explosion. Existing devices use overflow ports to release gas, but the open overflow ports allow gas to escape at any time, leading to a drop in gas pressure within the device, which is detrimental to rapid combustion. Therefore, an improved high-temperature overflow port structure for a high-temperature treatment device for waste cathode carbon blocks from electrolytic aluminum is proposed. Utility Model Content
[0004] The embodiments of this application provide a high-temperature overflow port structure for a high-temperature treatment device for waste cathode carbon blocks of electrolytic aluminum, which solves the problems of existing high-temperature treatment devices being unable to exhaust gas in time, and the open overflow port causing a decrease in gas pressure inside the high-temperature treatment device, which is not conducive to combustion.
[0005] This application provides a high-temperature overflow port structure for a high-temperature treatment device for waste cathode carbon blocks from electrolytic aluminum, comprising: a first connecting pipe, a second connecting pipe, a sleeve, a shaft, a first sleeve, a second sleeve, a first coiled spring, a second coiled spring, a first valve plate, and a second valve plate; the first connecting pipe is connected to the gas output end of the high-temperature treatment device and is used to receive the gas generated by the high-temperature treatment device; the second connecting pipe is connected to the receiving end of an external pipeline and is used to output the gas generated by the high-temperature treatment device to the external pipeline; the sleeve is used to connect the first connecting pipe and the second connecting pipe; the shaft is fixedly connected to the sleeve, and the axial direction of the shaft is perpendicular to the length extension direction of the sleeve; the first sleeve and the second sleeve are sleeved on the shaft and are arranged perpendicularly in the axial direction of the shaft; the first coiled spring and the second coiled spring are sleeved on the shaft and are respectively disposed in the first sleeve and the second sleeve, respectively used to assist the first sleeve and the second sleeve in rotation by elastic force; the first valve plate and the second valve plate are fixedly connected to the outer surfaces of the first sleeve and the second sleeve, respectively.
[0006] When the charcoal blocks burn in the high-temperature treatment device, the gas pressure inside the device increases. The airflow enters the first connecting pipe from the gas output end of the high-temperature treatment device. The airflow pushes the first valve plate and the second valve plate to rotate towards the second connecting pipe, thereby opening the sleeve. The airflow enters the external pipe through the second connecting pipe. At the same time, the first valve plate and the second valve plate drive the first sleeve and the second sleeve to rotate respectively. The thrust of the airflow is converted into the elastic force of the first coil spring and the second coil spring through the first valve plate, the second valve plate, the first sleeve and the second sleeve, causing the first coil spring and the second coil spring to compress. When the gas pressure inside the high-temperature treatment device is low, the thrust of the airflow is less than the elastic force stored when the first coil spring and the second coil spring are compressed. The first coil spring and the second coil spring extend, and through the elastic force stored when they are compressed, they drive the first sleeve and the second sleeve to rotate respectively, while driving the first valve plate and the second valve plate to close the sleeve.
[0007] In another possible implementation, the diameter of the sleeve is larger than the diameter of the first connecting pipe and the second connecting pipe.
[0008] In another possible implementation, both the first valve plate and the second valve plate have a semi-circular structure, and the radii of the first valve plate and the second valve plate are equal to the radius of the sleeve.
[0009] In another possible implementation, the length of the sleeve is greater than its diameter.
[0010] In another possible implementation, the starting end of the first connecting pipe is connected to an air-gathering hopper.
[0011] In another possible implementation, the gas-gathering hopper adopts a funnel-shaped structure or a conical structure.
[0012] In another possible implementation, the gas-gathering hopper is equipped with a filter screen for filtering the gas entering the first connecting pipe.
[0013] In another possible implementation, the sleeve is provided with connecting rings at both ends, and the first connecting pipe and the second connecting pipe are detachably and fixedly connected to the sleeve through the connecting rings.
[0014] In another possible implementation, the first connecting pipe, the second connecting pipe, and the sleeve are connected by a threaded connection.
[0015] In another possible implementation, the end of the second connecting pipe is provided with a flange, and the second connecting pipe is connected to an external pipeline through the flange.
[0016] The high-temperature overflow port structure of this utility model involves installing a sleeve between two connecting pipes. Inside the sleeve are a shaft, a sleeve, and a valve plate. The valve plate and sleeve can rotate around the shaft, and the valve plate's rotation is assisted by a spring. When the gas pressure inside the high-temperature treatment device is high, the airflow pushes the valve plate to rotate, expelling the gas. When the gas pressure inside the high-temperature treatment device is low, the spring's elastic force drives the valve plate to rotate, closing the sleeve passage. This high-temperature overflow port structure solves the problems of existing high-temperature treatment devices failing to vent gas in a timely manner, and open overflow ports causing a drop in gas pressure inside the high-temperature treatment device, which is detrimental to combustion. Attached Figure Description
[0017] The accompanying drawings used in the description of the embodiments or prior art are briefly introduced below.
[0018] Figure 1 A three-dimensional structural diagram of the high-temperature overflow port of a high-temperature treatment device for waste cathode carbon blocks of electrolytic aluminum provided in this application embodiment;
[0019] Figure 2 A cross-sectional schematic diagram of the high-temperature overflow port of a high-temperature treatment device for waste cathode carbon blocks of electrolytic aluminum provided in this application embodiment;
[0020] Figure 3 A partial structural schematic diagram of the high-temperature overflow port of a high-temperature treatment device for waste cathode carbon blocks of electrolytic aluminum provided in an embodiment of this application;
[0021] Figure 4 This is a cross-sectional schematic diagram of a partial structure of the high-temperature overflow port of a high-temperature treatment device for waste cathode carbon blocks of electrolytic aluminum provided in an embodiment of this application.
[0022] Reference numerals: 1-First connecting pipe, 2-Second connecting pipe, 3-Sleeve, 4-Air gathering hopper, 5-Filter screen, 6-Flange, 7-Second valve plate, 8-Connecting ring, 9-Shaft, 10-First sleeve, 11-First coiled spring, 12-First valve plate, 13-Second sleeve, 14-Second coiled spring. Detailed Implementation
[0023] The technical solutions in the embodiments of this application will now be described with reference to the accompanying drawings.
[0024] In the description of this application, the terms “center,” “upper,” “lower,” “front,” “rear,” “left,” “right,” “vertical,” “horizontal,” “top,” “bottom,” “inner,” and “outer,” etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application.
[0025] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "installation", "connection" and "joining" should be interpreted broadly, for example, they can be fixed connections, detachable connections, mating connections or integral connections; those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.
[0026] Figure 1 This is a schematic diagram of the overall three-dimensional structure of the high-temperature overflow port of a high-temperature treatment device for waste cathode carbon blocks of electrolytic aluminum provided in an embodiment of this application.
[0027] like Figure 1 As shown, the high-temperature overflow port structure of a high-temperature treatment device for waste cathode carbon blocks of electrolytic aluminum includes a first connecting pipe 1, a second connecting pipe 2, and a sleeve 3.
[0028] Please combine Figures 2 to 4 , Figure 2 yes Figure 1 The high-temperature overflow port structure shown is a cross-sectional view in some embodiments; Figure 3 yes Figure 2 The cross-sectional view of the high-temperature overflow port structure shown is a partial structural diagram in some embodiments; Figure 4 yes Figure 3 The diagram shown is a partial structural diagram of the high-temperature overflow port, and is a cross-sectional view in some embodiments.
[0029] refer to Figure 2 The high-temperature overflow port structure also includes a shaft 9, a first sleeve 10, and a second sleeve 13. Further, refer to... Figure 3 and combined Figure 4 The high-temperature overflow port structure also includes a first coil spring 11, a second coil spring 14, a first valve plate 12, and a second valve plate 7.
[0030] Specifically, the first connecting pipe 1 is connected to the gas output end of the high-temperature treatment device to receive the gas generated by the high-temperature treatment device. The second connecting pipe 2 is connected to the receiving end of an external pipeline to output the gas generated by the high-temperature treatment device to the external pipeline.
[0031] Back Figure 1 The first connecting pipe 1 and the second connecting pipe 2 are connected by a sleeve 3. The connection methods include, but are not limited to, threaded connection, flange connection, welding, snap-fit, adhesive bonding, and riveting.
[0032] refer to Figure 2The shaft 9 is fixedly connected to the sleeve 3, and the axial direction of the shaft 9 is perpendicular to the length extension direction of the sleeve 3. Specifically, both ends of the shaft 9 can be fixed to the two side walls of the sleeve 3, and the axial direction of the shaft 9 (which is also the length extension direction of the shaft) is perpendicular to the length extension direction of the sleeve 3. The connection methods include, but are not limited to, threaded connection, flange connection, welding, snap-fit, adhesive bonding, and riveting.
[0033] Continue to refer to Figure 2 The first sleeve 10 and the second sleeve 13 are fitted onto the shaft 9, and the first sleeve 10 and the second sleeve 13 are arranged perpendicularly to each other along the axial direction of the shaft 9. (Reference) Figure 3 and combined Figure 4 The first coil spring 11 and the second coil spring 14 are sleeved on the shaft 9 and respectively set in the first sleeve 10 and the second sleeve 13. The first coil spring 11 and the second coil spring 14 are respectively used to assist the first sleeve 10 and the second sleeve 13 to rotate through elastic force.
[0034] Specifically, taking the first coil spring 11 as an example, the first coil spring 11 is fixed between the shaft 9 and the first sleeve 10 at both ends. That is, one end of the first coil spring 11 is fixed to the shaft 9, and the other end is fixed to the inner surface of the first sleeve 10. The fixing methods include, but are not limited to, end support fixing, hook fixing, thread fixing, pin fixing, embedding fixing, and welding fixing. For example, support blocks are installed on the first sleeve 10 and the shaft 9, and the two ends of the first coil spring 11 rest against the support blocks, transmitting elastic force through the support blocks; the ends of the first coil spring 11 are designed as hooks, hooking onto the grooves or protrusions on the inner wall of the first sleeve 10 and the shaft 9, respectively. The fixing method of the second coil spring 14 is the same as that of the first coil spring 11, and will not be described further here.
[0035] refer to Figure 4 The first valve plate 12 and the second valve plate 7 are fixedly connected to the outer surfaces of the first sleeve 10 and the second sleeve 13, respectively. The fixing methods include, but are not limited to, threaded connection, bolt connection, riveting, bonding, snap-fit connection, and flange connection.
[0036] Specifically, when the charcoal block is burning in the high-temperature treatment device, the gas pressure in the high-temperature treatment device gradually increases, and the airflow enters the first connecting pipe 1 from the gas output end of the high-temperature treatment device. Under the action of high gas pressure, the airflow pushes the first valve plate 12 and the second valve plate 14 to rotate in the direction of the second connecting pipe 2. At this time, the sleeve 3 is opened by the two valve plates, and the airflow enters the external pipeline through the second connecting pipe. As the airflow drives the first valve plate 12 and the second valve plate 14 to rotate, it also drives the first sleeve 10 and the second sleeve 13 to rotate. Simultaneously, the rotation of the first sleeve 10 and the second sleeve 13 compresses the first coil spring 11 and the second coil spring 14. In other words, during the above process, the thrust of the airflow is converted into the elastic force of the first coil spring 11 and the second coil spring 14 through the first valve plate 12 and the second valve plate 7, the first sleeve 10 and the second sleeve 13, causing the first coil spring 11 and the second coil spring 14 to compress. When the air pressure inside the high-temperature treatment device is low, the thrust of the airflow is less than the elastic force stored when the first coil spring 11 and the second coil spring 14 are compressed. The first coil spring 11 and the second coil spring 14 will then extend, and through the elastic force stored when they are compressed, they will drive the first sleeve 10 and the second sleeve 13 to rotate in the direction of the first connecting pipe 1, and at the same time drive the first valve plate 12 and the second valve plate 7 to close the sleeve 3.
[0037] In this embodiment, by installing a valve plate inside the sleeve 3 and combining it with the elastic force of a spring, the airflow pushes the valve plate to rotate under air pressure, allowing gas to pass through. When the air pressure is low, the valve plate closes the sleeve 3 under the action of the spring, thus preventing gas from flowing out of the high-temperature treatment device. This allows gas to flow out of the high-temperature treatment device when needed and automatically closes when not needed, which is beneficial for the safe and efficient operation of the high-temperature treatment of the cathode carbon block.
[0038] In some embodiments, the diameter of the sleeve 3 may be larger than the diameter of the first connecting pipe 1 and the second connecting pipe 2.
[0039] By controlling the diameter of sleeve 3 to be larger than the diameter of the first connecting pipe 1 and the second connecting pipe 2, the airflow can flow more smoothly in the overflow port. If the diameter of sleeve 3 is smaller than the diameter of the first connecting pipe and the second connecting pipe, the overflow speed will be affected when a large amount of airflow is discharged.
[0040] In some embodiments, the first valve plate 12 and the second valve plate 7 both adopt a semi-circular structure, and the radii of the first valve plate 12 and the second valve plate 7 are equal to the radius of the sleeve 3.
[0041] In this embodiment, by setting the above-described structure, the first valve plate 12 and the second valve plate 7 can close and seal the sleeve 3 when the gas pressure inside the high-temperature treatment device for electrolytic aluminum waste cathode carbon blocks is low, so as to prevent the gas flow from overflowing from the sleeve 3.
[0042] In some embodiments, the length of the sleeve 3 is greater than its diameter.
[0043] According to the technical solution provided in the previous embodiment, the radii of the first valve plate 12 and the second valve plate 7 are equal to the radius of the sleeve 3. Therefore, the combined diameter of the two valve plates is equal to the diameter of the sleeve 3. It is easy to understand that the rotational space of the two valve plates is a sphere with the shaft as the axis of rotation and the diameter of the two valve plates (i.e., the diameter of the sleeve 3) as the diameter. When the length of the sleeve 3 is greater than the diameter of the two valve plates, the sleeve 3 can provide rotational space for the two valve plates. If the length of the sleeve 3 is less than its diameter, the valve plate may protrude from the sleeve 3 after rotation and be blocked by the first connecting pipe 1 or the second connecting pipe 2.
[0044] In some embodiments, returning Figure 1 The first connecting pipe 1 is connected to a gas-gathering hopper 4 at its starting end. The gas-gathering hopper is used to facilitate the entry of gas from the high-temperature treatment device into the first connecting pipe 1.
[0045] In some embodiments, the gas-gathering hopper 4 adopts a funnel-shaped or conical structure, and the diameter of the end of the gas-gathering hopper 4 connected to the high-temperature treatment device is larger than the diameter of the end connected to the first connecting pipe 1.
[0046] In this embodiment, the above structure can be used to guide the gas in the high-temperature processing device so that it can smoothly enter the first connecting pipe 1.
[0047] In some embodiments, reference continues to be made to Figure 1 The gas-gathering hopper 4 is equipped with a filter screen 5, which is used to filter the gas entering the first connecting pipe 1 to prevent large-diameter objects from entering the first connecting pipe 1 and causing blockage inside the pipe.
[0048] In some embodiments, reference continues to be made to Figure 1 The sleeve 3 is provided with connecting rings 8 at both ends. The first connecting pipe 1 and the second connecting pipe 2 are connected to the sleeve 3 through the connecting rings 8. The connection method can be a detachable fixed connection.
[0049] In this embodiment, the sleeve 3 is detachably fixed to the first connecting pipe 1 and the second connecting pipe 2 via the connecting ring 8, so that the sleeve 3 can be disassembled for replacement or maintenance when needed.
[0050] In some embodiments, the connecting ring 8 can be detachably fixedly connected to the first connecting pipe 1 and the second connecting pipe 2 by a threaded connection, so as to facilitate the disassembly of the sleeve 3 for replacement or maintenance.
[0051] In some embodiments, reference continues to be made to Figure 1 The end of the second connecting pipe 2 is provided with a flange 6, and the second connecting pipe 2 can be connected to an external pipe through the flange 6.
[0052] In the description of this specification, specific features, structures, materials, or characteristics may be combined in any suitable manner in one or more embodiments or examples.
[0053] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this application and are not intended to limit them. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this application.
Claims
1. A high-temperature overflow port structure for a high-temperature treatment device for waste cathode carbon blocks from electrolytic aluminum, characterized in that, include: The components include a first connecting pipe, a second connecting pipe, a sleeve, a shaft, a first sleeve, a second sleeve, a first coiled spring, a second coiled spring, a first valve plate, and a second valve plate; among which... The first connecting pipe is connected to the gas output end of the high-temperature processing device and is used to receive the gas generated by the high-temperature processing device. The second connecting pipe is connected to the receiving end of the external pipe and is used to output the gas generated by the high-temperature treatment device to the external pipe. A sleeve is used to connect the first connecting pipe and the second connecting pipe; A shaft is fixedly connected to the sleeve, and the axial direction of the shaft is perpendicular to the length extension direction of the sleeve; The first sleeve and the second sleeve are fitted onto the shaft and are arranged perpendicularly to the axial direction of the shaft; The first spring and the second spring are sleeved on the shaft and respectively disposed in the first sleeve and the second sleeve, and are used to assist the first sleeve and the second sleeve to rotate by elastic force. The first valve plate and the second valve plate are fixedly connected to the outer sides of the first sleeve and the second sleeve, respectively; When the charcoal blocks burn in the high-temperature treatment device, the gas pressure inside the device increases. The airflow enters the first connecting pipe from the gas output end of the high-temperature treatment device. The airflow pushes the first valve plate and the second valve plate to rotate towards the second connecting pipe, thereby opening the sleeve. The airflow enters the external pipe through the second connecting pipe. At the same time, the first valve plate and the second valve plate drive the first sleeve and the second sleeve to rotate respectively. The thrust of the airflow is converted into the elastic force of the first coil spring and the second coil spring through the first valve plate, the second valve plate, the first sleeve and the second sleeve, causing the first coil spring and the second coil spring to compress. When the gas pressure inside the high-temperature treatment device is low, the thrust of the airflow is less than the elastic force stored when the first coil spring and the second coil spring are compressed. The first coil spring and the second coil spring extend, and through the elastic force stored when they are compressed, they drive the first sleeve and the second sleeve to rotate respectively, while driving the first valve plate and the second valve plate to close the sleeve.
2. The high-temperature overflow port structure of the high-temperature treatment device for waste cathode carbon blocks of electrolytic aluminum according to claim 1, characterized in that, The diameter of the sleeve is larger than the diameter of the first connecting pipe and the second connecting pipe.
3. The high-temperature overflow port structure of the high-temperature treatment device for waste cathode carbon blocks of electrolytic aluminum according to claim 1, characterized in that, Both the first valve plate and the second valve plate adopt a semi-circular structure, and the radius of the first valve plate and the second valve plate is equal to the radius of the sleeve.
4. The high-temperature overflow port structure of the high-temperature treatment device for waste cathode carbon blocks of electrolytic aluminum according to claim 3, characterized in that, The length of the sleeve is greater than its diameter.
5. The high-temperature overflow port structure of the high-temperature treatment device for waste cathode carbon blocks of electrolytic aluminum according to claim 1, characterized in that, The first connecting pipe is connected to an air-gathering hopper at its starting end.
6. The high-temperature overflow port structure of the high-temperature treatment device for waste cathode carbon blocks of electrolytic aluminum according to claim 5, characterized in that, The gas-gathering hopper adopts a funnel-shaped structure or a cone-shaped structure.
7. The high-temperature overflow port structure of the high-temperature treatment device for electrolytic aluminum waste cathode carbon blocks according to claim 5 or 6 is characterized in that, The gas-gathering hopper is equipped with a filter screen, which is used to filter the gas entering the first connecting pipe.
8. The high-temperature overflow port structure of the high-temperature treatment device for electrolytic aluminum waste cathode carbon blocks according to claims 1-6, characterized in that, The sleeve is provided with connecting rings at both ends, and the first connecting pipe and the second connecting pipe are detachably fixed to the sleeve through the connecting rings.
9. The high-temperature overflow port structure of the high-temperature treatment device for waste cathode carbon blocks of electrolytic aluminum according to claim 8, characterized in that, The first connecting pipe, the second connecting pipe and the sleeve are connected by threaded connection.
10. The high-temperature overflow port structure of the high-temperature treatment device for electrolytic aluminum waste cathode carbon blocks according to claims 1-6 or 9, characterized in that, The second connecting pipe is provided with a flange at its end, and the second connecting pipe is connected to an external pipeline through the flange.