Calcination machine liquid sealing system

Abstract

This disclosure relates to a liquid sealing system for a roasting machine. The system includes: a sealing groove, a sealing plate, and a sealing plate flipping assembly; the sealing groove is disposed on the side wall of the roasting machine's bellows and / or furnace hood, for holding a sealing liquid; the sealing plate is disposed on the trolley of the roasting machine, for immersing itself in the sealing liquid when the sealing plate enters the sealing groove, thereby sealing the roasting machine's bellows and / or furnace hood; the sealing plate flipping assembly includes an arc-shaped guide rail, for causing the sealing plate to flip and bend along the arc-shaped guide rail when the sealing plate enters or leaves the sealing groove, and for allowing the sealing plate to enter or leave the sealing groove after flipping and bending. The liquid sealing system for a roasting machine according to embodiments of this disclosure can reduce air leakage rate, improve heat utilization efficiency and fan utilization efficiency, and the sealing liquid can be an ordinary liquid, does not need to be magnetic, and the sealing effect is not affected by high temperatures. It can also simplify the construction of the sealing system and the trolley, reducing costs.

Description

Technical Field

[0001] This disclosure relates to the field of production process technology, and in particular to a liquid sealing system for a roasting machine. Background Technology

[0002] The calciner bellows and furnace hood are important components of the hot air circulation system in the entire pelletizing (sintering) process. The airtightness of the calciner bellows and furnace hood is the main factor affecting the air leakage rate of the entire pelletizing (sintering) process air system, and it is also related to the system's heat utilization efficiency and the utilization efficiency of the process fans. Therefore, properly controlling the airtightness of the calciner bellows and furnace hood and reducing its air leakage rate is the basis for ensuring the utilization efficiency of the hot air system.

[0003] The hot air circulation system is fundamental to energy conservation and carbon emission reduction in the entire pellet (sintering) roasting system. From the moment the green pellets are placed onto the roasting machine trolley, the entire thermal process, from drying to cooling, relies primarily on the hot air circulation system for heat transfer. Increased air leakage in the hot air circulation system will lower the system temperature, increase fuel consumption per unit area, and increase process fan energy consumption. Therefore, improving the sealing of the roasting machine's air box and furnace hood is fundamental to reducing air leakage in the hot air circulation system, thereby reducing fuel consumption and carbon emissions.

[0004] Traditional pellet (sintering) calciner bellows and furnace hood seals primarily employ drop bar sealing and slide rail sealing methods. These methods require adding spring boxes to the trolley, rigid slide rails to the bellows, and an intelligent lubrication system. The spring boxes require high machining precision, and the rigid slide rails and intelligent lubrication system are consumables, increasing operating costs. Furthermore, issues such as drop bar wear, slide rail wear, and aging of the trolley spring plates negatively impact sealing performance, as well as waste oil pollution.

[0005] In related technologies, magnetic fluid sealing is also used, but due to its complex structure and the fact that the magnetic field strength is easily affected by high temperatures (for example, the temperature of the pellets is about 1300°C), the application scenarios of magnetic fluid sealing equipment are limited.

[0006] Non-contact liquid sealing uses sealing plates and a water tank. The water tank is sealed at both ends with rubber, with an opening in the middle for the sealing plate to enter and exit. The tank is sealed by friction between the rubber and the sealing plate, but this method is prone to leakage. Therefore, water collection funnels are needed at both ends of the tank, and a level gauge, water pump, piping system, and electrical control system are required to maintain the water level. This method is effective for sintering processes with full exhaust ventilation, but for pelletizing processes with forced draft, the water tank accumulates dust, making cleaning difficult. Furthermore, air leakage can occur between the sealing plates when the trolley deviates from its course. Summary of the Invention

[0007] This disclosure provides a liquid sealing system for a calciner. The system may include: a sealing groove, a sealing plate, and a sealing plate flipping assembly;

[0008] The sealing groove is installed on the side wall of the bellows and / or furnace hood of the roasting machine and is used to hold the sealing liquid;

[0009] The sealing plate is mounted on the trolley of the roasting machine and is used to immerse itself in the sealing liquid when the sealing plate enters the sealing groove, thereby sealing the air box and / or furnace hood of the roasting machine. The sealing plate includes a flexible connecting plate, which allows the sealing plate to be flipped and bent.

[0010] The sealing plate flipping assembly includes an arc-shaped guide rail, which is used to cause the sealing plate to flip and bend along the arc-shaped guide rail when the sealing plate enters or leaves the sealing groove, and to enable the sealing plate to enter or leave the sealing groove after flipping and bending.

[0011] In one possible implementation, the sealing plate further includes a fixing plate and a liquid partition. The fixing plate is disposed above the flexible connecting plate for fixing the sealing plate to the trolley; the liquid partition is disposed below the flexible connecting plate for immersion in the sealing liquid, thereby sealing the bellows and / or furnace hood of the roasting machine.

[0012] In one possible implementation, the sealing plate further includes positioning plates located on both sides of the sealing plate to ensure that there is no gap between two adjacent sealing plates.

[0013] In one possible implementation, the positioning plate is made of a flexible material that is able to deform when compressed and return to its original shape when the pressure is released.

[0014] In one possible implementation, when the sealing plate enters the sealing groove, the arc-shaped guide rail of the sealing plate flipping assembly is disposed outside the sealing groove, and the arc-shaped guide rail is located on the path of the sealing plate entering the sealing groove.

[0015] In one possible implementation, the sealing plate flipping assembly is further used for:

[0016] When the sealing plate enters the sealing groove, the flexible connecting plate in the sealing plate is flipped and bent into an L-shape along the arc-shaped guide rail, thereby reducing the longitudinal length of the sealing plate flipping assembly so as to enter the sealing groove.

[0017] In one possible implementation, when the sealing plate leaves the sealing groove, the arc-shaped guide rail of the sealing plate flipping assembly is disposed within the sealing groove, and the arc-shaped guide rail is located on the path of the sealing plate leaving the sealing groove.

[0018] In one possible implementation, the sealing plate flipping assembly is further used for:

[0019] When the sealing plate leaves the sealing groove, the flexible connecting plate in the sealing plate is flipped and bent into an L-shape along the arc-shaped guide rail, thereby reducing the longitudinal length of the sealing plate flipping assembly so as to leave the sealing groove.

[0020] In one possible implementation, the system further includes a dustproof plate disposed between the sealing groove and the air box to prevent high-temperature gas in the air box from flowing into the sealing fluid and to prevent dust from entering the sealing fluid.

[0021] In one possible implementation, the dustproof plate is made of thermal insulation material to reduce heat transfer to the sealing fluid.

[0022] According to embodiments of the present disclosure, the liquid sealing system for a roasting machine can be constructed using sealing plates with flexible connecting plates. This allows the sealing plates to be easily flipped and bent under the guidance of a sealing plate flipping assembly, facilitating their entry and exit from the sealing groove. After immersion in the sealing liquid, it can seal the wind box and / or furnace hood, reducing air leakage and improving heat utilization efficiency and fan utilization efficiency. Furthermore, the sealing plates also include positioning plates made of flexible material on both sides, ensuring that gaps do not appear between adjacent sealing plates when adjacent trolleys deviate from their designated paths, thus improving the sealing performance of the sealing system. The steel plates around the sealing groove and on the bottom are fixedly welded, eliminating water leakage and reducing sealing liquid waste. Additionally, a dustproof plate can be installed between the sealing groove and the airflow direction to reduce siltation within the sealing groove and isolate heat from the wind box, reducing the evaporation rate of the sealing liquid and improving thermal efficiency. Moreover, the sealing liquid can be a common liquid, reducing costs, and it does not need to be magnetic; the sealing effect is not affected by high temperatures. It can also simplify the construction of the sealing system, eliminating the need for spring boxes, rigid slides, lubrication systems, etc., simplifying the structure of the trolley, reducing oil pollution from lubricating oil, lowering inspection and maintenance costs, and reducing spare parts costs.

[0023] It should be understood that the foregoing general description and the following detailed description are exemplary and explanatory only, and are not intended to limit this disclosure. Other features and aspects of this disclosure will become clearer from the following detailed description of exemplary embodiments with reference to the accompanying drawings. Attached Figure Description

[0024] The accompanying drawings, which are incorporated in and form part of this specification, illustrate embodiments consistent with this disclosure and, together with the specification, serve to illustrate the technical solutions of this disclosure.

[0025] Figure 1 A calciner liquid sealing system according to an embodiment of the present disclosure is shown;

[0026] Figure 2 A schematic diagram of a liquid separator according to an embodiment of the present disclosure is shown;

[0027] Figure 3 A schematic diagram showing the sealing plate entering the sealing groove according to an embodiment of the present disclosure is shown;

[0028] Figure 4 A schematic diagram showing the sealing plate leaving the sealing groove according to an embodiment of the present disclosure is shown. Detailed Implementation

[0029] Various exemplary embodiments, features, and aspects of this disclosure will now be described in detail with reference to the accompanying drawings. The same reference numerals in the drawings denote elements that have the same or similar functions. Although various aspects of the embodiments are shown in the drawings, they are not necessarily drawn to scale unless specifically indicated otherwise.

[0030] The term “exemplary” as used herein means “serving as an example, embodiment, or illustration.” Any embodiment illustrated herein as “exemplary” is not necessarily to be construed as superior to or better than other embodiments.

[0031] In this document, the term "and / or" is merely a description of the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent three cases: A exists alone, A and B exist simultaneously, and B exists alone. Furthermore, the term "at least one" in this document means any combination of at least two of any one or more elements. For example, including at least one of A, B, and C can mean including any one or more elements selected from the set consisting of A, B, and C.

[0032] Furthermore, to better illustrate this disclosure, numerous specific details are set forth in the following detailed description. Those skilled in the art will understand that this disclosure can be practiced without certain specific details. In some instances, methods, means, components, and circuits well known to those skilled in the art have not been described in detail in order to highlight the main points of this disclosure.

[0033] In order to improve the sealing performance of the bellows and furnace hood of the roasting machine, and reduce the complexity of the sealing system, the cost of the precision sealing system, and the maintenance difficulty, this disclosure proposes a liquid sealing system for the roasting machine.

[0034] Figure 1 This illustrates a calciner liquid sealing system according to an embodiment of the present disclosure, such as... Figure 1 As shown, the system may include: a sealing groove, a sealing plate, and a sealing plate flipping assembly;

[0035] The sealing groove is installed on the side wall of the bellows and / or furnace hood of the roasting machine and is used to hold the sealing liquid;

[0036] The sealing plate is mounted on the trolley of the roasting machine and is used to immerse itself in the sealing liquid when the sealing plate enters the sealing groove, thereby sealing the air box and / or furnace hood of the roasting machine. The sealing plate includes a flexible connecting plate, which allows the sealing plate to be flipped and bent.

[0037] The sealing plate flipping assembly includes an arc-shaped guide rail, which is used to cause the sealing plate to flip and bend along the arc-shaped guide rail when the sealing plate enters or leaves the sealing groove, and to enable the sealing plate to enter or leave the sealing groove after flipping and bending.

[0038] The calciner liquid sealing system according to embodiments of this disclosure can be constructed using a sealing plate with a flexible connecting plate. This allows the sealing plate to be easily flipped and bent under the guidance of a sealing plate flipping assembly, facilitating its entry and exit from the sealing groove. After immersion in the sealing liquid, it can seal the bellows and / or furnace hood, reducing air leakage and improving heat utilization efficiency and fan utilization efficiency. Furthermore, the sealing liquid can be a common liquid, reducing costs, and it does not need to be magnetic; the sealing effect is not affected by high temperatures. Further, the construction of the sealing system can be simplified, eliminating the need for spring boxes, rigid slides, lubrication systems, etc., thus simplifying the trolley construction and reducing costs.

[0039] In one possible implementation, the calciner liquid sealing system may be provided on the calciner to seal the calciner's bellows and / or furnace hood.

[0040] In one possible implementation, if the bellows is sealed, such as Figure 1 As shown, the sealing groove can be installed on the side walls of the bellows of the roasting machine, for example, at the top of the side walls. If the furnace hood is to be sealed, the sealing groove can also be installed on the side walls of the furnace hood, for example, at the lower ends of the side walls of the furnace hood. Of course, both the bellows and the furnace hood can be sealed, in which case sealing grooves can be provided on the side walls of both the bellows and the furnace hood.

[0041] In one possible implementation, the perimeter and bottom of the sealing groove can be welded from steel plates to hold the sealing fluid. In this example, the steel plates on the perimeter and bottom of the sealing groove are fixedly welded, eliminating leakage and reducing waste of the sealing fluid. A sealing fluid inlet can be provided at the top for adding sealing fluid. A drain outlet can be provided at the bottom for draining the sealing fluid during maintenance, cleaning, or replacement.

[0042] In one possible implementation, the sealing fluid can be any non-flammable liquid, such as water or other non-flammable organic liquids. This disclosure does not limit the type of sealing fluid. For the type of sealing fluid, it is only necessary to be able to isolate air; high-cost liquids such as magnetic liquids are not required, thereby reducing the cost of the sealing system and making the sealing performance of the liquid less susceptible to the effects of high temperatures, thus maintaining the stability of the sealing performance of the sealing system at high temperatures.

[0043] In one possible implementation, the sealing plate can be mounted on the trolley of the roasting machine, for example, on the side of the trolley, at a position corresponding to the sealing groove. This allows the sealing plate to move along a pre-set path, enter the sealing groove, and be immersed in the sealing liquid. This creates a sealed environment between the sealing liquid and the sealing plate, sealing the bellows and / or the furnace hood. In the example, such as... Figure 1 As shown, when sealing the bellows, the sealing plate can be positioned below the bottom surface of the trolley, allowing it to enter a sealing groove on the side wall of the bellows. In another example, when sealing the furnace hood, the sealing plate can be positioned above the bottom surface of the trolley, allowing it to enter a sealing groove on the side wall of the furnace hood. Of course, when both the furnace hood and the bellows are sealed, sealing grooves can be provided both above and below the bottom surface of the trolley.

[0044] Figure 2 A schematic diagram of a liquid separator according to an embodiment of the present disclosure is shown, such as... Figure 2 As shown, the sealing plate includes a flexible connecting plate that can be flipped and bent when subjected to external force.

[0045] In one possible implementation, the sealing plate further includes a fixing plate and a liquid partition. The fixing plate is disposed above the flexible connecting plate for fixing the sealing plate to the trolley; the liquid partition is disposed below the flexible connecting plate for immersion in the sealing liquid, thereby sealing the bellows and / or furnace hood of the roasting machine.

[0046] In one possible implementation, as described above, the sealing plate can be disposed above and / or below the bottom surface of the trolley, and can be fixed above and / or below the bottom surface of the trolley by a fixing plate.

[0047] In one possible implementation, a liquid baffle may be located below a flexible connecting plate and may enter a sealing liquid, thereby sealing the bellows and / or furnace hood of the roasting machine.

[0048] In one possible implementation, such as Figure 2 As shown, the sealing plate also includes positioning plates, which are located on both sides of the sealing plate to ensure that there is no gap between two adjacent sealing plates.

[0049] In the example, multiple trolleys can be parked side by side, and the sealing plates installed on the multiple trolleys can also be placed side by side and in close contact with each other, so that there are no gaps between the sealing plates installed on the multiple trolleys, thus ensuring good sealing performance of the sealing system on the multiple trolleys.

[0050] In one possible implementation, the positioning plate is made of a flexible material that is able to deform when compressed and return to its original shape when the pressure is released.

[0051] In this example, continuing from the previous one, the sealing plates on multiple trolleys can also be arranged side-by-side and in close contact. The positioning plates of adjacent sealing plates will deform due to mutual compression; this deformation is elastic, ensuring no gaps between adjacent sealing plates. Furthermore, if gaps appear due to misalignment of adjacent trolleys, the positioning plates on the adjacent sealing plates can have positions with greater compression force and positions with less compression force (or no compression force). The positions with greater compression force will exhibit greater deformation, while the positions with less compression force (or no compression force) will exhibit less deformation (or no deformation), thus ensuring no gaps between adjacent sealing plates and maintaining the airtightness of the sealing system. Moreover, when the trolleys cease compression, the positioning plates can return to their original shape, allowing the sealing plates to be reused and reducing operating costs.

[0052] In one possible implementation, such as Figure 1 As shown, the lower edge of the sealing plate is lower than the upper edge of the sealing groove. Therefore, without the sealing plate being flipped or bent, the sealing plate cannot smoothly enter the sealing groove, nor can it smoothly leave the sealing groove.

[0053] In one possible implementation, the sealing groove can be a rectangular groove, with positions at both ends along the length of the rectangle that allow the sealing plate to enter and / or leave the sealing groove, and a sealing plate flipping assembly is provided at these positions.

[0054] In one possible implementation, the sealing plate flipping assembly can be positioned outside the sealing groove at the point where the sealing plate enters the sealing groove, and inside the sealing groove at the point where the sealing plate leaves the sealing groove.

[0055] In one possible implementation, the sealing plate flipping assembly includes an arc-shaped guide rail for causing the sealing plate to flip and bend along the guide rail. The arc-shaped guide rail is positioned outside the sealing groove at the location where the sealing plate enters the sealing groove, or inside the sealing groove at the location where the sealing plate leaves the sealing groove.

[0056] In one possible implementation, when the sealing plate enters the sealing groove, the arc-shaped guide rail of the sealing plate flipping assembly is disposed outside the sealing groove, and the arc-shaped guide rail is located on the path of the sealing plate entering the sealing groove.

[0057] In one possible implementation, the sealing plate flipping assembly is further configured to: when the sealing plate enters the sealing groove, cause the flexible connecting plate in the sealing plate to flip and bend into an L-shape along the arc-shaped guide rail, thereby reducing the longitudinal length of the sealing plate flipping assembly to enter the sealing groove.

[0058] In one possible implementation, the sealing plate can be mounted on a trolley, and the sealing plate can move with the trolley when the trolley moves. The path of the sealing plate into the sealing groove can be set near the moving path of the trolley (e.g., the track of the trolley), and the distance between the path of the sealing plate into the sealing groove and the path of the trolley is consistent with the distance between the sealing plate and the trolley, so that when the trolley moves, the sealing plate moves on the path of the sealing plate into the sealing groove.

[0059] Figure 3 A schematic diagram showing the sealing plate entering the sealing groove according to an embodiment of the present disclosure is shown, as follows: Figure 3 As shown, an arc-shaped guide rail for the sealing plate flipping assembly can be set along the path of the sealing plate entering the sealing groove. One end of the arc-shaped guide rail is flush with the end face of the sealing groove, and the other end can be lower than the lower edge of the sealing plate in its vertical state. As the sealing plate moves along the above path, it can enter the arc-shaped guide rail, and under the constraint of the arc-shaped guide rail, the flexible connecting plate flips and bends along the arc-shaped guide rail, gradually becoming an L-shape. In the example, as... Figure 1 As shown, point A of the sealing plate is a flexible connecting plate. When the sealing plate moves to the end where the arc-shaped guide rail is flush with the end face of the sealing groove, it can change into an L-shape. Point A is the location of the flexible connecting plate and also the inflection point where the sealing plate changes into an L-shape. After the above deformation, the longitudinal length of the sealing plate in the height direction decreases, so that the lower edge of the deformed sealing plate is higher than the upper edge of the sealing groove, allowing the sealing plate to enter the sealing groove. After entering the sealing groove, the sealing plate can return to a vertical state.

[0060] In one possible implementation, after the sealing plate returns to its vertical position, the liquid baffle can be immersed in the sealing liquid, so that the sealing plate and the sealing liquid form a sealed environment, thereby sealing the bellows and / or furnace hood of the roasting machine.

[0061] In one possible implementation, when the sealing plate leaves the sealing groove, the arc-shaped guide rail of the sealing plate flipping assembly is disposed within the sealing groove, and the arc-shaped guide rail is located on the path of the sealing plate leaving the sealing groove.

[0062] In one possible implementation, the sealing plate flipping assembly is further configured to: when the sealing plate leaves the sealing groove, cause the flexible connecting plate in the sealing plate to flip and bend into an L-shape along the arc-shaped guide rail, thereby reducing the longitudinal length of the sealing plate flipping assembly so as to leave the sealing groove.

[0063] In one possible implementation, the path of the sealing plate away from the sealing groove can be set near the moving path of the trolley (e.g., the track of the trolley), and the distance between the path of the sealing plate away from the sealing groove and the path of the trolley is consistent with the distance between the sealing plate and the trolley, so that when the trolley moves, the sealing plate moves along the path of the sealing plate away from the sealing groove.

[0064] Figure 4 A schematic diagram showing the sealing plate leaving the sealing groove according to an embodiment of the present disclosure is shown, as follows. Figure 4 As shown, an arc-shaped guide rail for the sealing plate flipping assembly can be set along the path of the sealing plate leaving the sealing groove. One end of the arc-shaped guide rail is flush with the end face of the sealing groove, and the other end can be lower than the lower edge of the sealing plate in its vertical state. As the sealing plate moves along the above path, it can enter the arc-shaped guide rail, and under the constraint of the arc-shaped guide rail, the flexible connecting plate flips and bends along the arc-shaped guide rail, gradually becoming an L-shape. In the example, at point A of the sealing plate (e.g., Figure 1 As shown, the sealing plate is a flexible connecting plate. When the sealing plate moves to the end where the arc-shaped guide rail is flush with the end face of the sealing groove, it can change into an L-shape. Point A is the location of the flexible connecting plate, which is also the inflection point where the sealing plate changes into an L-shape. After the above deformation, the longitudinal length of the sealing plate in the height direction decreases, so that the lower edge of the deformed sealing plate is higher than the upper edge of the sealing groove, allowing the sealing plate to leave the sealing groove. After leaving the sealing groove, the sealing plate can return to a vertical state.

[0065] In one possible implementation, such as Figure 1 As shown, the system also includes a dustproof plate, which is disposed between the sealing groove and the air box to prevent high-temperature gas in the air box from flowing into the sealing fluid and to prevent dust from entering the sealing fluid.

[0066] In one possible implementation, when air is blown in the bellows, the airflow may enter the sealing groove and be blocked by the sealing fluid and sealing plate, so that the airflow will not leak. However, the airflow may be mixed with dust. After entering the sealing groove, it mixes with the sealing fluid and can form sludge, which will cause inconvenience for maintenance and cleaning. In addition, the temperature of the airflow may be high, which can cause the sealing fluid to evaporate faster after entering the sealing groove, resulting in waste of the sealing fluid.

[0067] In one possible implementation, to address the above issues, a dustproof plate can be installed between the sealing groove and the airflow direction. This dustproof plate can block gas from flowing into the sealing groove, significantly reducing the gas flow rate and the amount of dust it carries, thereby reducing silt in the sealing groove and facilitating maintenance and cleaning. Furthermore, reducing the gas flow rate into the sealing groove also reduces the evaporation rate of the sealing fluid under the blowing of gas, minimizing fluid waste.

[0068] In one possible implementation, the dustproof plate is made of a heat-insulating material to reduce heat transfer to the sealing fluid. To further reduce the evaporation rate of the sealing fluid, the dustproof plate can be made of a heat-insulating material, thereby isolating heat within the air box and reducing heat transfer to the sealing fluid, thus slowing down the evaporation rate of the sealing fluid. Furthermore, it also reduces heat dissipation and improves thermal efficiency.

[0069] According to embodiments of the present disclosure, the liquid sealing system for a roasting machine can be constructed using sealing plates with flexible connecting plates. This allows the sealing plates to be easily flipped and bent under the guidance of a sealing plate flipping assembly, facilitating their entry and exit from the sealing groove. After immersion in the sealing liquid, it can seal the wind box and / or furnace hood, reducing air leakage and improving heat utilization efficiency and fan utilization efficiency. Furthermore, the sealing plates also include positioning plates made of flexible material on both sides, ensuring that gaps do not appear between adjacent sealing plates when adjacent trolleys deviate from their designated paths, thus improving the sealing performance of the sealing system. The steel plates around the sealing groove and on the bottom are fixedly welded, eliminating water leakage and reducing sealing liquid waste. Additionally, a dustproof plate can be installed between the sealing groove and the airflow direction to reduce siltation within the sealing groove and isolate heat from the wind box, reducing the evaporation rate of the sealing liquid and improving thermal efficiency. Moreover, the sealing liquid can be a common liquid, reducing costs, and it does not need to be magnetic; the sealing effect is not affected by high temperatures. It can also simplify the construction of the sealing system, eliminating the need for spring boxes, rigid slides, lubrication systems, etc., simplifying the structure of the trolley, reducing oil pollution from lubricating oil, lowering inspection and maintenance costs, and reducing spare parts costs.

[0070] It is understood that the embodiments mentioned above in this disclosure can be combined with each other to form combined embodiments without violating the principle and logic. Due to space limitations, this disclosure will not elaborate further. Those skilled in the art will understand that in the above methods of specific implementation, the specific execution order of each step should be determined by its function and possible internal logic.

[0071] The various embodiments of this disclosure have been described above. These descriptions are exemplary and not exhaustive, nor are they limited to the disclosed embodiments. Many modifications and variations will be apparent to those skilled in the art without departing from the scope and spirit of the described embodiments. The terminology used in this disclosure is chosen to best explain the principles, practical application, or improvement of the technology in the market, or to enable other those skilled in the art to understand the embodiments disclosed herein.

Claims

1. A liquid sealing system for a calcining machine, characterized in that, include: Sealing groove, sealing plate, and sealing plate flipping assembly; The sealing groove is installed on the side wall of the bellows and / or furnace hood of the roasting machine and is used to hold the sealing liquid; The sealing plate is mounted on the trolley of the roasting machine and is used to immerse itself in the sealing liquid when the sealing plate enters the sealing groove, thereby sealing the air box and / or furnace hood of the roasting machine. The sealing plate includes a flexible connecting plate, which allows the sealing plate to be flipped and bent. The sealing plate flipping assembly includes an arc-shaped guide rail, used to cause the sealing plate to flip and bend along the arc-shaped guide rail when the sealing plate enters or leaves the sealing groove, and to allow the sealing plate to enter or leave the sealing groove after flipping and bending; and When the sealing plate enters the sealing groove, the arc-shaped guide rail of the sealing plate flipping assembly is disposed outside the sealing groove, and the arc-shaped guide rail is located on the path of the sealing plate entering the sealing groove; The sealing plate flipping assembly is further used for: When the sealing plate enters the sealing groove, the flexible connecting plate in the sealing plate is flipped and bent into an L-shape along the arc-shaped guide rail, thereby reducing the longitudinal length of the sealing plate flipping assembly so as to enter the sealing groove. And / or, When the sealing plate leaves the sealing groove, the arc-shaped guide rail of the sealing plate flipping assembly is disposed in the sealing groove, and the arc-shaped guide rail is located on the path of the sealing plate leaving the sealing groove; The sealing plate flipping assembly is further used for: When the sealing plate leaves the sealing groove, the flexible connecting plate in the sealing plate is flipped and bent into an L-shape along the arc-shaped guide rail, thereby reducing the longitudinal length of the sealing plate flipping assembly so as to leave the sealing groove.

2. The calciner liquid sealing system according to claim 1, characterized in that, The sealing plate also includes a fixing plate and a liquid partition. The fixing plate is disposed above the flexible connecting plate and is used to fix the sealing plate on the trolley. The liquid partition is disposed below the flexible connecting plate and is used to be immersed in the sealing liquid to seal the air box and / or furnace hood of the roasting machine.

3. The calciner liquid sealing system according to claim 1, characterized in that, The sealing plate also includes positioning plates, which are located on both sides of the sealing plate to ensure that there is no gap between two adjacent sealing plates.

4. The calciner liquid sealing system according to claim 3, characterized in that, The positioning plate is made of a flexible material that can deform when compressed and return to its original shape when the pressure is released.

5. The calciner liquid sealing system according to claim 1, characterized in that, The system also includes a dustproof plate, which is disposed between the sealing groove and the air box to prevent high-temperature gas in the air box from flowing into the sealing liquid and to prevent dust from entering the sealing liquid.

6. The calciner liquid sealing system according to claim 5, characterized in that, The dustproof panel is made of heat-insulating material to reduce heat transfer to the sealing fluid.

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