Flue gas mixing and discharging equipment

Abstract

The invention relates to the field of flue gas emission, in particular to flue gas mixing emission equipment which comprises a first flue, a second flue, a third flue, a flue gas mixing device and a movable connecting device. The flue gas mixing device comprises a mixing body and a flue gas joint; the first flue and the second flue are communicated with the third flue through the mixing body; the flue gas connector is arranged on the outer side wall of the mixing body, the second flue is communicated with the mixing body through the flue gas connector, and the second flue is movably connected with the flue gas connector; the first flue is communicated with the mixing body through a movable connecting device; the movable connecting device comprises a fixed connecting body, a movable connecting body and a switching mechanism, the fixed connecting body is fixedly connected with the mixing body, and the movable connecting body is fixedly connected with the first flue; the switching mechanism is arranged on the movable connecting body, and the movable connecting body is rotationally connected with the fixed connecting body through the switching mechanism. According to the invention, the production cost is reduced, and the production efficiency is improved.

Description

Technical Field

[0001] This invention relates to the field of flue gas emission, and in particular to a flue gas mixing emission device. Background Technology

[0002] In aluminum alloy casting production, the smelting tilting furnace is used to burn, heat, melt, and hold the input scrap aluminum until it is completely melted into molten aluminum. Once production requirements are met, the molten aluminum is tilted and fed to the casting machine through a metal flow channel.

[0003] During production, the combustion and smelting process inside the furnace generates a large amount of high-temperature flue gas exceeding 1000 degrees Celsius. Additionally, the regenerative combustion system outside the furnace also produces flue gas exceeding 200 degrees Celsius, which is drawn away by exhaust fans. Both types of flue gas require a unified flue gas duct for treatment. Currently, the common practice in the market is to treat both the high-temperature flue gas generated inside the furnace and the flue gas drawn away by exhaust fans separately. However, both types of flue gas are produced through the combustion system and have very similar compositions. Separate treatment leads to high production costs and is not conducive to improving production efficiency. Summary of the Invention

[0004] The technical problem to be solved by the present invention is to provide a flue gas mixing and emission device that reduces production costs and improves production efficiency.

[0005] To solve the above-mentioned technical problems, the present invention provides a flue gas mixing and emission device, including a first flue, a second flue, a third flue, a flue gas mixing device, and a movable connection device; The flue gas mixing device includes a mixing body and a flue gas connector. The first flue and the second flue are connected to the third flue through the mixing body. The flue gas connector is located on the outer wall of the mixing body. The second flue is connected to the mixing body through the flue gas connector, and the second flue and the flue gas connector are movably connected. The first flue is connected to the mixing body via a movable connecting device; The movable connection device includes a fixed connector, a movable connector, and a transfer mechanism. The fixed connector is fixedly connected to the mixing body, and the movable connector is fixedly connected to the first flue. The transfer mechanism is disposed on the movable connector, and the movable connector is rotatably connected to the fixed connector through the transfer mechanism.

[0006] As an improvement to the above solution, the hybrid body is provided with a heat insulation layer, which divides the interior of the hybrid body into an inner channel and an outer channel; The first flue is connected to the third flue through an inner channel, and the flue gas connector is connected to the third flue through an outer channel.

[0007] As an improvement to the above solution, one end of the hybrid body is provided with an air inlet, and the other end is provided with a first air outlet and a second air outlet; The second flue is connected to the inner channel through the air inlet, the inner channel is connected to the third flue through the first air outlet, and the outer channel is connected to the third flue through the second air outlet.

[0008] As an improvement to the above solution, the flue gas mixing device further includes a cover plate, the flue gas connector is provided with a flue gas interface, and the cover plate is fixedly connected to the second flue; the cover plate covers the flue gas interface and is movably connected to the flue gas connector. The cover plate and the flue gas inlet are arc-shaped; both the cover plate and the flue gas inlet are on a circle with the center of the mixing body as the center, and the movement trajectory of the cover plate is on a circle with the center of the mixing body as the center. The area of ​​the cover plate is larger than the area of ​​the flue gas inlet.

[0009] As an improvement to the above solution, the adapter mechanism includes a connecting plate, a sealing plate, and a sealing element. The connecting plate and the movable connecting body are fixedly connected, and the sealing element is installed between the fixed connecting body and the movable connecting body by means of the sealing plate.

[0010] As an improvement to the above solution, the adapter mechanism further includes a mounting assembly, and the connecting plate and the sealing plate are detachably connected via the mounting assembly; The mounting assembly includes a connecting rod and a fastener, which are movably connected and fixedly connected to a connecting plate; the connecting rod passes through the sealing plate and the fastener presses the sealing plate against the sealing element.

[0011] As an improvement to the above solution, the flue gas mixing and emission equipment further includes a flue gas emission device, which includes a valve body, a drive mechanism, a valve plate, and a transmission shaft. The valve body is provided with a smoke passage hole that passes through both ends of the valve body, and the valve plate is located in the smoke passage hole. The transmission shaft passes through the valve plate and extends out of the valve body. The drive mechanism is located outside the valve body and connected to the transmission shaft to drive the transmission shaft to rotate.

[0012] As an improvement to the above solution, the flue gas emission device also includes a transmission assembly located outside the valve body; The transmission assembly includes a first transmission arm, a support shaft, a transmission rod, and a second transmission arm. The support shaft is installed on the outer wall of the valve body. The first transmission arm can rotate around the support shaft. The second transmission arm and the transmission shaft are fixedly connected. The valve body, the drive mechanism, the first transmission arm, the transmission rod, and the second transmission arm are sequentially and movably connected.

[0013] As an improvement to the above solution, the inner wall of the valve body is lined with heat insulation material, which forms a smoke passage hole; The valve body is provided with a support assembly, which includes a bracket and a bearing mounted on the bracket. The bracket is fixedly installed on the outer side wall of the valve body, and the drive shaft is mounted on the bearing. The driving mechanism is a cylinder.

[0014] As an improvement to the above solution, the inner walls of the first flue, the second flue, and the third flue are all lined with heat insulation material; The second flue and the flue gas connector are sealed together; The bottom of the first flue and the third flue are respectively provided with flue brackets for supporting the first flue and the third flue.

[0015] The present invention has the following beneficial effects: The first flue of the flue gas mixing and emission device of this invention is fixedly connected to the flue gas outlet of the smelting tilting furnace, the second flue is fixedly connected to the outlet of the exhaust fan, and the third flue is fixedly connected to the workshop flue pipe. The first and second flues are connected to the third flue through a mixing body, so that the high-temperature flue gas generated in the main furnace and the flue gas drawn away by the exhaust fan are mixed by the mixing body and then discharged to the workshop flue pipe through the third flue for further treatment. In this way, the third flue mixes and treats the flue gas from the smelting furnace and the flue gas generated by the combustion and heat storage system outside the furnace, two flue gases with similar compositions, thereby reducing production costs and improving production efficiency.

[0016] Furthermore, to accommodate the tilting and rotation of the furnace and the movement of the first and second flues following the tilting of the smelting furnace, the second flue of this invention is connected to the mixing body via a flue gas connector, and the second flue and the flue gas connector are movably connected, meaning the second flue can move relative to the flue gas connector. The flue gas connector not only accommodates the location of the second flue but also, through its movable connection, does not obstruct the second flue's movement with the furnace. The first flue of this invention is connected to the mixing body via a movable connection device, which includes a fixed connector, a movable connector, and a transfer mechanism. The movable connector is rotatably connected to the fixed connector via the transfer mechanism, allowing the first flue to rotate relative to the mixing body, i.e., the third flue. This movable connection device ensures communication between the first and third flues without obstructing the first flue's movement with the furnace, thus achieving mixed emission of the two flues, reducing equipment setup, lowering production costs, and improving production efficiency. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the structure of the flue gas mixing and emission device of the present invention; Figure 2 yes Figure 1 A structural diagram from another angle; Figure 3 yes Figure 1Cross-sectional view of the flue gas mixing device; Figure 4 yes Figure 1 A cross-sectional view of the movable connecting device; Figure 5 yes Figure 4 Enlarged view of point A; Figure 6 yes Figure 1 A schematic diagram of the initial state of the second flue; Figure 7 yes Figure 1 Schematic diagram of the structure after the second flue was moved; Figure 8 yes Figure 1 A three-dimensional view of a flue gas emission device; Figure 9 yes Figure 1 Side view of the flue gas emission device. Detailed Implementation

[0018] To make the objectives, technical solutions, and advantages of this invention clearer, the invention will be further described in detail below with reference to the accompanying drawings. It is hereby declared that the directional terms such as up, down, left, right, front, back, inside, and outside used in this text are based solely on the accompanying drawings and are not intended to specifically limit the invention.

[0019] See Figure 1-9 The present invention discloses a flue gas mixing and emission device, including a first flue 1, a second flue 2, a third flue 3, a flue gas mixing device 10, and a movable connection device 20.

[0020] The flue gas mixing device 10 includes a mixing body 3 and a flue gas connector 4. The first flue 1 and the second flue 2 are connected to the third flue 3 through the mixing body 3. The flue gas connector 4 is located on the outer wall of the mixing body 3. The second flue 2 is connected to the mixing body 3 through the flue gas connector 4, and the second flue 2 and the flue gas connector 4 are movably connected. The second flue 2 and the flue gas connector 4 are sealed together.

[0021] The first flue 1 is connected to the mixing body 3 via a movable connecting device 20.

[0022] The movable connection device 20 includes a fixed connection body 6, a movable connection body 7, and a transfer mechanism. The fixed connection body 6 is fixedly connected to the mixing body 3, and the movable connection body 7 is fixedly connected to the first flue 1. The transfer mechanism is disposed on the movable connection body 7, and the movable connection body 7 is rotatably connected to the fixed connection body 6 through the transfer mechanism.

[0023] The first flue of the flue gas mixing and emission device of this invention is fixedly connected to the flue gas outlet of the smelting tilting furnace, the second flue is fixedly connected to the outlet of the exhaust fan, and the third flue is fixedly connected to the workshop flue pipe. The first and second flues are connected to the third flue through a mixing body, so that the high-temperature flue gas generated in the main furnace and the flue gas drawn away by the exhaust fan are mixed by the mixing body and then discharged to the workshop flue pipe through the third flue for further treatment. In this way, the third flue mixes and treats the flue gas from the smelting furnace and the flue gas generated by the combustion and heat storage system outside the furnace, two flue gases with similar compositions, thereby reducing production costs and improving production efficiency.

[0024] Furthermore, to accommodate the tilting and rotation of the furnace and the movement of the first and second flues following the tilting of the smelting furnace, the second flue of this invention is connected to the mixing body via a flue gas connector, and the second flue and the flue gas connector are movably connected, meaning the second flue can move relative to the flue gas connector. The flue gas connector not only accommodates the location of the second flue but also, through its movable connection, does not obstruct the second flue's movement with the furnace. The first flue of this invention is connected to the mixing body via a movable connection device, which includes a fixed connector, a movable connector, and a transfer mechanism. The movable connector is rotatably connected to the fixed connector via the transfer mechanism, allowing the first flue to rotate relative to the mixing body, i.e., the third flue. This movable connection device ensures communication between the first and third flues without obstructing the first flue's movement with the furnace, thus achieving mixed emission of the two flues, reducing equipment setup, lowering production costs, and improving production efficiency.

[0025] It should be noted that the smelting process inside the furnace generates high-temperature flue gas exceeding 1000 degrees Celsius. This gas is discharged from the furnace through the main furnace flue and then sent to the inner channel of the mixing body via the first flue. Simultaneously, the heat storage system of the external combustion equipment generates flue gas exceeding 200 degrees Celsius, which is drawn away by the exhaust fan and sent to the outer channel of the mixing body via the second flue. After the two types of flue gas are mixed together in the third flue, the combined flue gas reaches a temperature exceeding 300 degrees Celsius. This mixed flue gas is then discharged through the third flue to the workshop exhaust pipe, and subsequently sent to dust removal equipment for further treatment before being released. This temperature of over 300 degrees Celsius is precisely the operating temperature of the dust removal equipment. The introduction of this mixed flue gas into the dust removal equipment at this temperature improves its operating efficiency, increases waste heat utilization, and saves energy.

[0026] Preferably, the inner walls of the first flue 1, the second flue 2, and the third flue 3 are all lined with heat-insulating material, which is a castable refractory. The castable refractory is a refractory material with fireproof, heat-insulating, and high-temperature resistant properties.

[0027] Specifically, such as Figure 3As shown, the mixing body 3 is provided with a heat insulation layer 33, which divides the interior of the mixing body 3 into an inner channel 31 and an outer channel 32. Since the flue gas emitted from the first flue reaches over 1000 degrees Celsius, to avoid burns from excessively high flue surface temperatures and to reduce heat loss, the inner channel is separated from the outer wall of the mixing body by the heat insulation layer. The heat insulation layer is preferably castable refractory. The first flue 1 is connected to the third flue 3 via the inner channel 31, and the flue gas connector 4 is connected to the third flue 3 via the outer channel 32.

[0028] More specifically, such as Figure 3 As shown, the mixing body 3 has an air inlet 34 at one end and a first air outlet 35 and a second air outlet 36 at the other end. The second flue 2 is connected to the inner channel 31 through the air inlet 34, the inner channel 31 is connected to the third flue 3 through the first air outlet 35, and the outer channel 32 is connected to the third flue 3 through the second air outlet 36. Therefore, the first flue 1, air inlet 34, inner channel 31, first air outlet 35, and third flue 3 are connected in sequence, as are the second flue 2, flue gas connector 4, outer channel 32, second air outlet 36, and third flue 3. The flue gas from the first flue and the flue gas from the second flue are mixed at the first and second air outlets, and after being fully mixed in the third flue, they are transported to the workshop flue pipe for subsequent flue gas treatment.

[0029] Furthermore, such as Figure 1-2 As shown in Figures 6-7, the flue gas mixing device further includes a cover plate 5, and the flue gas connector 4 is provided with a flue gas interface 41. The cover plate 5 and the second flue duct 2 are fixedly connected. The cover plate 5 covers the flue gas interface 41 and is movably connected to the flue gas connector 4. The ends of the cover plate 5 and the second flue duct 2 are fixedly connected, and the opening of the second flue duct 2 is located on the cover plate 5. The cover plate 5 covers the flue gas interface 41 and abuts against it. Preferably, a sealing element (not shown in the figure) is provided between the cover plate 5 and the flue gas connector 4. The cover plate and the flue gas connector abut against each other through the sealing element, which is provided along the edge of the flue gas interface, so that the cover plate and the flue gas connector achieve a sealed connection to prevent air leakage.

[0030] Specifically, the cover plate 5 and the flue gas connector 4 are slidably connected. The cover plate 5 can slide on the flue gas connector 4. When the second flue gas moves with the tilting of the furnace, it will move the cover plate along with it. During the movement of the cover plate, the cover plate always stays close to the flue gas connector, i.e., the flue gas interface, and slides on the flue gas connector. Moreover, the cover plate always covers the flue gas interface, i.e., always maintains a sealed connection with the flue gas connector. Therefore, regardless of the initial state, the state during the movement, or the state after the movement of the cover plate, the cover plate always completely covers the entire flue gas interface, maintaining a sealed connection with the flue gas connector. So, no matter what position the cover plate is in, the second flue is connected to the flue gas connector without leakage, ensuring that the flue gas in the second flue is smoothly transported into the outer channel of the mixing body.

[0031] Preferably, the cover plate 5 and the flue gas connector 4 are sealed together by fiber packing.

[0032] Preferably, the area of ​​the cover plate 5 is larger than the area of ​​the flue gas interface 41, ensuring that the cover plate always completely covers the flue gas interface when and after it is moved.

[0033] Preferably, the cover plate 5 and the flue gas interface 41 are arc-shaped; both the cover plate 5 and the flue gas interface 41 are on a circle with the center of the mixing body 3 as the center, and the movement trajectory of the cover plate 5 is on a circle with the center of the mixing body 3 as the center.

[0034] The furnace tilts and rotates, causing the first flue to rotate. The first flue is connected to the inner channel of the mixing body and is coaxial with it; therefore, the first flue rotates around the axis of the mixing body. Simultaneously, the second flue, located at the top of the furnace, also moves around the axis of the mixing body. To ensure the cover plate always covers the flue gas inlet and maintains its seal during the movement of the second flue, the cover plate and the flue gas inlet are both arc-shaped, and both are located on a circumference centered on the center of the mixing body. Therefore, when the furnace tilts and rotates, the cover plate's movement trajectory is on a circumference centered on the center of the mixing body, and it can slide against the flue gas inlet, always covering it.

[0035] Furthermore, since the third flue and the mixing body are fixedly installed, and the first flue is fixedly installed on the furnace, the third flue, the mixing body, and the first flue are relatively fixed in the radial direction. The first flue will rotate around their axis under the drive of the furnace. The transition mechanism is sleeved on the fixed connecting body, so that the fixed connecting body and the movable connecting body are radially fixed. This ensures that the rotation of the movable connecting body and the first flue is stable and reliable, while also ensuring that the movable connecting body and the fixed connecting body remain connected and connected, thereby realizing the rotation of the first flue relative to the third flue and the mixing body.

[0036] like Figure 5As shown, the adapter mechanism includes a connecting plate 71, a sealing plate 72, and a sealing element 73. The connecting plate 71 and the movable connecting body 7 are fixedly connected. The sealing element 73 is installed between the fixed connecting body 6 and the movable connecting body 7 by the sealing plate 72.

[0037] The movable connector, connecting plate, and sealing plate are connected sequentially. The sealing plate fixes the seal at a position corresponding to the gap between the fixed connector and the movable connector, isolating the gap from the outside and preventing air leakage. Simultaneously, the movable connector can also drive the connecting plate and sealing plate to connect; that is, when the first flue rotates, the connecting plate and sealing plate rotate around the axis of the fixed connector. The seal may move with the connecting plate and sealing plate, or it may not move, but under the pressure of the sealing plate, the seal always maintains the gap between the sealing connector and the movable connector, ensuring no air leakage. Preferably, the seal is a fiber disc plate.

[0038] Preferably, such as Figure 5 As shown, the adapter mechanism further includes an installation assembly, through which the connecting plate 71 and the sealing plate 72 are detachably connected. The installation assembly includes a connecting rod 74 and a fastener 75, which are movably connected and fixedly connected to the connecting plate 71. The connecting rod 71 passes through the sealing plate 72 and presses the sealing plate 72 against the sealing element 73 using the fastener 75. Specifically, the connecting rod 74 is a screw, and the fastener 75 is a nut; the connecting rod 74 and the fastener 75 are threaded together.

[0039] like Figure 5 As shown, the connecting plate 71 extends from the movable connecting body 7 towards the outer side of the fixed connecting body 6, leaving a gap between the outer walls of the connecting body and the fixed connecting body. The sealing element 73 is fitted over the fixed movable body 6 and, under the action of the sealing plate, is pressed against the end face of the connecting plate and the outer wall of the fixed connecting body, thereby isolating the gap from the outside environment and sealing it to prevent air leakage. The connecting rod 74 passes through the sealing plate 72, and the sealing plate 72 is adjusted to its position on the connecting rod 74 under the action of the fastener 75. The sealing element 73 is positioned between the sealing plate 73 and the connecting plate 71. Rotating the fastener pushes the sealing plate towards the connecting plate, thereby pressing the sealing element against the outer wall of the connecting plate and the movable connecting body to seal the gap. When the sealing element needs to be replaced, rotating the fastener separates the fastener from the connecting rod, and then removing the sealing plate from the connecting rod allows the sealing element to be removed for replacement. After replacement, the sealing plate and fastener are reinstalled on the connecting rod. Its structure is simple and its operation is convenient.

[0040] It should be noted that, as Figure 4As shown, the inner walls of both the fixed connector 6 and the movable connector 7 are lined with castable refractory for heat insulation, and the castable refractory forms air passage holes 61. The air passage holes 61 of the fixed connector 6 and the movable connector 7 are coaxially arranged, and the first flue 1 communicates with the inner channel 31 of the mixing body 3 through two air passage holes 61. In addition, a gap is left between the castable refractory of the fixed connector 6 and the movable connector 7 to prevent the two castable refractory materials from rubbing against each other and causing damage.

[0041] Preferably, such as Figure 1-2 As shown, the bottom of the first flue 1 and the third flue 3 are respectively provided with flue brackets 40 for supporting the first flue 1 and the third flue 3. That is, the bottom of the first flue 1 is provided with a flue bracket 40 for supporting the first flue 1, and the bottom of the third flue 3 is provided with a flue bracket 40 for supporting the third flue 3. It should be noted that, since the first flue needs to rotate, the flue bracket supporting the first flue is provided with pulleys. The flue bracket contacts the first flue through the pulleys to reduce the friction caused by the rotation of the first flue.

[0042] Furthermore, in order to ensure that the furnace pressure inside the furnace is maintained within a certain set value range and to ensure normal production, the flue gas mixing and emission equipment also includes a flue gas emission device, which can control whether the first flue is connected to the mixing body and the third flue.

[0043] like Figure 1-2 As shown in Figures 8-9, the flue gas emission device 30 includes a valve body 8, a drive mechanism 9, a valve plate 10, and a transmission shaft 101. The valve body 8 has a smoke passage hole 81 that passes through both ends of the valve body 8. The valve plate 10 is located inside the smoke passage hole 81. The transmission shaft 101 passes through the valve plate 10 and extends out of the valve body 10. The drive mechanism 9 is located outside the valve body 8 and is connected to the transmission shaft 101 to drive the transmission shaft 101 to rotate.

[0044] Specifically, the valve plate 10 and the smoke passage 81 are adapted in shape and size. The valve plate 10 and the smoke passage 81 are preferably circular. The drive shaft 101 passes through the valve plate 10 and is positioned on the diameter of the valve plate 10. Both ends of the drive shaft 101 extend out of the valve body 8 and are connected to a drive mechanism 9 installed outside the valve body 8. The drive mechanism 9 is preferably a cylinder. This invention drives the drive shaft 101 to rotate via the drive mechanism 9, thereby driving the valve plate located in the smoke passage to flip, causing the smoke passage to open or close. This maintains the furnace pressure within a certain set range and prevents flue gas from the second flue from flowing into the first flue.

[0045] Preferably, the flue gas emission device further includes a transmission assembly disposed outside the valve body 8; such as Figure 8-9As shown, the transmission assembly includes a first transmission arm 91, a support shaft 94, a transmission rod 92, and a second transmission arm 93. The support shaft 94 is installed on the outer side wall of the valve body 8. The first transmission arm 91 can rotate around the support shaft 94. The second transmission arm 93 is fixedly connected to the transmission shaft 101. The valve body 8, the drive mechanism 9, the first transmission arm 91, the transmission rod 92, and the second transmission arm 93 are sequentially and movably connected.

[0046] Specifically, such as Figure 9 As shown, the cylinder body and valve body are hinged, the output end of the cylinder is hinged to one end of the first transmission arm 91, and the other end of the first transmission arm 91 is sleeved on the support shaft 94, and the first transmission arm 91 can rotate around the support shaft 94. One end of the transmission rod 92 is hinged to the first transmission arm 91, and the other end is hinged to one end of the second transmission arm 93; the other end of the second transmission arm 93 is sleeved on the transmission shaft 101, and the second transmission arm 93 and the transmission shaft 101 are fixedly connected. The cylinder, the first transmission arm 91, the transmission rod 92, the second transmission arm 93 and the support shaft 94 are connected in sequence to drive the valve plate 10 to rotate. The first transmission arm, the transmission rod and the second transmission arm work together to make the transmission more stable and reliable, ensuring that the transmission shaft can be rotated effectively to realize the opening and closing of the smoke passage.

[0047] Preferably, such as Figure 8 As shown, the inner wall of the valve body 8 is lined with heat-insulating material, which forms a smoke passage hole 81. The heat-insulating material is a castable refractory material with fireproof, heat-insulating, and high-temperature resistant properties. Since the flue gas emitted from the first flue reaches over 1000 degrees Celsius, and the smoke passage hole is directly connected to the first flue, to avoid burns from excessively high flue surface temperatures and to reduce heat loss, the smoke passage hole is separated from the outer wall of the valve body by the castable refractory.

[0048] Preferably, the valve body 8 is provided with a support assembly, which includes a bracket 102 and a bearing 103 mounted on the bracket 102. The bracket 102 is fixedly mounted on the outer side wall of the valve body 8, and the drive shaft 101 is mounted on the bearing 103. Specifically, the bracket 102 is also provided with a bearing seat (not shown in the figure), and the bearing 103 is mounted on the bearing seat. The drive shaft 101 is mounted on the bearing 103 to reduce friction between the drive shaft and the bracket when the drive shaft rotates. The bracket effectively supports the drive shaft and the valve plate, preventing friction between the drive shaft and the valve body and the casting body, and extending the service life of the valve body, the casting body, and the drive shaft.

[0049] It should be noted that during the entire production process, only the first flue 1, the second flue 2, and the flue gas emission device 30 will move with the furnace, while the third flue 3, the mixing body 3, the flue gas connector 4, and the fixed connection body 6 are all stationary.

[0050] In addition, the flue gas emission device also includes a sensor (not shown) for detecting furnace pressure, which is installed inside the furnace. Initially, the valve plate remains closed at the flue gas passage. When the furnace pressure exceeds a first set value, the sensor sends a signal to the controller, which then controls the drive mechanism to rotate the transmission shaft, causing the valve plate to flip and open the flue gas passage. This connects the first flue and the inner channel of the mixing body, releasing the flue gas from the first flue to the third flue, where it mixes with the flue gas from the second flue. When the furnace pressure falls below a second set value, the sensor sends a signal to the controller, which then controls the drive mechanism to rotate the transmission shaft, resetting the valve plate and re-closing the flue gas passage. The first set value is greater than the second set value. Therefore, this invention uses the opening and closing of the valve plate to release or maintain furnace pressure, ensuring normal production and safety.

[0051] The above description represents the preferred embodiments of the present invention. It should be noted that those skilled in the art can make various improvements and modifications without departing from the principles of the present invention, and these improvements and modifications are also considered to be within the scope of protection of the present invention.

Claims

1. A flue gas mixing and emission device, characterized in that, It includes a first flue, a second flue, a third flue, a flue gas mixing device, and a movable connection device; The flue gas mixing device includes a mixing body and a flue gas connector. The first flue and the second flue are connected to the third flue through the mixing body. The flue gas connector is located on the outer wall of the mixing body. The second flue is connected to the mixing body through the flue gas connector, and the second flue and the flue gas connector are movably connected. The first flue is connected to the mixing body via a movable connecting device; The movable connection device includes a fixed connector, a movable connector, and a transfer mechanism. The fixed connector is fixedly connected to the mixing body, and the movable connector is fixedly connected to the first flue. The transfer mechanism is disposed on the movable connector, and the movable connector is rotatably connected to the fixed connector through the transfer mechanism.

2. The flue gas mixing and emission device as described in claim 1, characterized in that, The hybrid body is provided with a heat insulation layer, which divides the interior of the hybrid body into an inner channel and an outer channel; The first flue is connected to the third flue through an inner channel, and the flue gas connector is connected to the third flue through an outer channel.

3. The flue gas mixing and emission device as described in claim 2, characterized in that, The hybrid body has an air inlet at one end and a first air outlet and a second air outlet at the other end; The second flue is connected to the inner channel through the air inlet, the inner channel is connected to the third flue through the first air outlet, and the outer channel is connected to the third flue through the second air outlet.

4. The flue gas mixing and emission device as described in claim 1, characterized in that, The flue gas mixing device also includes a cover plate, the flue gas connector is provided with a flue gas interface, the cover plate is fixedly connected to the second flue; the cover plate covers the flue gas interface and is movably connected to the flue gas connector. The cover plate and the flue gas inlet are arc-shaped; both the cover plate and the flue gas inlet are on a circle with the center of the mixing body as the center, and the movement trajectory of the cover plate is on a circle with the center of the mixing body as the center. The area of ​​the cover plate is larger than the area of ​​the flue gas inlet.

5. The flue gas mixing and emission device as described in claim 1, characterized in that, The adapter mechanism includes a connecting plate, a sealing plate, and a sealing element. The connecting plate and the movable connecting body are fixedly connected. The sealing element is installed between the fixed connecting body and the movable connecting body by means of the sealing plate.

6. The flue gas mixing and emission device as described in claim 5, characterized in that, The adapter mechanism also includes a mounting assembly, through which the connecting plate and the sealing plate are detachably connected; The mounting assembly includes a connecting rod and a fastener, which are movably connected and fixedly connected to a connecting plate; the connecting rod passes through the sealing plate and the fastener presses the sealing plate against the sealing element.

7. The flue gas mixing and emission device as described in claim 1, characterized in that, The flue gas mixing and emission equipment also includes a flue gas emission device, which includes a valve body, a drive mechanism, a valve plate, and a transmission shaft. The valve body is provided with smoke passage holes that pass through both ends of the valve body, and the valve plate is located in the smoke passage holes. The transmission shaft passes through the valve plate and extends out of the valve body. The drive mechanism is located outside the valve body and connected to the transmission shaft to drive the transmission shaft to rotate.

8. The flue gas mixing and emission device as described in claim 7, characterized in that, The flue gas emission device also includes a transmission component located outside the valve body; The transmission assembly includes a first transmission arm, a support shaft, a transmission rod, and a second transmission arm. The support shaft is installed on the outer wall of the valve body. The first transmission arm can rotate around the support shaft. The second transmission arm and the transmission shaft are fixedly connected. The valve body, the drive mechanism, the first transmission arm, the transmission rod, and the second transmission arm are sequentially and movably connected.

9. The flue gas mixing and emission device as described in claim 7, characterized in that, The inner wall of the valve body is lined with heat insulation material, which forms a smoke passage hole. The valve body is provided with a support assembly, which includes a bracket and a bearing mounted on the bracket. The bracket is fixedly installed on the outer side wall of the valve body, and the drive shaft is mounted on the bearing. The driving mechanism is a cylinder.

10. The flue gas mixing and emission device according to any one of claims 1-9, characterized in that, The inner walls of the first, second, and third flues are all lined with heat insulation material; The second flue and the flue gas connector are sealed together. The bottom of the first flue and the third flue are respectively provided with flue brackets for supporting the first flue and the third flue.

Images