Smoke exhaust structure of feeding sealing cover

Abstract

The invention relates to the technical field of metal processing, in particular to a smoke exhaust structure of a feeding sealing cover. The feeding bin is in sealed connection with the feeding port through the sealing assembly, the discharging port in the bottom of the feeding bin is opposite to the feeding port, and the gate mechanism controls opening and closing operation of the feeding port to add aluminum materials into the cracking chamber, so that outward diffusion of aluminum material cracking heat can be effectively prevented, the sealing and heat insulation effects of the feeding gate are improved, and the temperature in the furnace is guaranteed; and meanwhile, the smoke return pipeline discharges smoke overflowing to the feeding bin during feeding into the high-temperature chamber, smoke overflowing to the feeding bin from the cracking chamber can be transferred to the high-temperature chamber or the cracking chamber to be combusted again, generated heat is recycled, the environment is not polluted, energy is saved, and cost is saved.

Description

Technical Field

[0001] The invention relates to the technical field of metal processing, in particular to a fume exhaust structure of a feeding sealing cover. Background Art

[0002] With the continuous advancement of the national science and technology development strategy, my country's recycled aluminum industry faces new challenges and opportunities. Traditional processes involve numerous steps, resulting in complex processes and relatively low production efficiency. The introduction of recycled aluminum melting equipment provides a more efficient and streamlined solution that effectively meets the requirements of the recycled aluminum melting process, reducing consumption, minimizing burnout, and improving product quality.

[0003] During the operation, the recycled aluminum melting process will produce high-temperature flue gas with fine dust during cracking. In the existing technology, the recycled aluminum melting process generally uses filter bags to directly remove dust from the high-temperature flue gas. The simple flue gas recovery equipment has a poor recovery effect, and residual pollutants will be discharged into the air. At the same time, the dust-removed flue gas still contains a large amount of heat. Direct discharge is likely to cause energy waste and affect the processing efficiency of the recycled aluminum melting equipment. Summary of the Invention

[0004] The technical problem to be solved by the present invention is to provide a charging sealing cover exhaust structure which can ensure the temperature in the furnace, transfer the overflowing flue gas to the high temperature chamber or cracking chamber for further combustion and reuse the generated heat, thereby saving costs.

[0005] In order to solve the above technical problems, the technical solution adopted by the present invention to solve the technical problems is:

[0006] A charging and sealing cover smoke exhaust structure, comprising:

[0007] Applied to a multi-chamber furnace body, the multi-chamber furnace body is provided with a cracking chamber and multiple high-temperature chambers, the cracking chamber is connected to the high-temperature chamber, and the cracking chamber is provided with a feeding port;

[0008] A gate mechanism is provided on the feeding port, and is used to control the opening and closing operation of the feeding port;

[0009] A feeding mechanism is provided above the gate mechanism, comprising a feeding bin and a sealing assembly, the sealing assembly being provided on the gate mechanism, the feeding bin being sealedly connected to the feeding port via the sealing assembly, and a discharge port at the bottom of the feeding bin being provided opposite to the feeding port;

[0010] A smoke exhaust mechanism is arranged on the charging bin, and the smoke exhaust mechanism includes a smoke exhaust pipe. The smoke exhaust pipe is arranged on the charging bin, and a return smoke pipe is provided on the multi-chamber furnace body. The smoke exhaust pipe is connected to the high-temperature chamber through the return smoke pipe. The return smoke pipe is used to discharge the smoke overflowing into the charging bin during charging into the high-temperature chamber.

[0011] In one embodiment of the present invention, the return smoke pipeline includes a mounting frame, on which a return smoke fan is provided. The return smoke fan is connected to the air inlet pipe, the air outlet end of the return smoke fan is connected to the air outlet pipe, and the air outlet pipe is connected to the high-temperature chamber.

[0012] In one embodiment of the present invention, the air outlet pipe includes a main pipe, the main pipe is connected to at least one branch pipe, the branch pipe is connected to the smoke inlet of the high temperature chamber, and a pipeline valve is provided on the branch pipe.

[0013] In one embodiment of the present invention, a fixing seat is provided on the free end of the air inlet pipe, and a connecting seat matching the fixing seat is provided on the smoke exhaust pipe, and the connecting seat is connected to the fixing seat via a sealing member.

[0014] In one embodiment of the present invention, a fixing inclined surface is provided on the fixing seat, and a connecting surface matching the fixing inclined surface is provided on the connecting seat, and the fixing inclined surface is inclined toward the feeding bin.

[0015] In one embodiment of the present invention, the sealing assembly includes a sealing frame, the sealing frame cover is arranged on the gate mechanism, the sealing frame is provided with a connecting port matching the discharge port, the edge of the connecting port is provided with a sealing bracket, at least one sealing ring is provided on the sealing bracket, the bottom of the feeding bin is provided with a sealing protrusion, the sealing ring is provided with a sealing groove matching the sealing protrusion, the cross-section of the sealing groove is a trumpet-mouth structure, and the sealing protrusion is clamped on the sealing groove.

[0016] In one embodiment of the present invention, a vibrator is provided at the bottom of the feeding bin, and the vibrator is arranged opposite to the sealing protrusion.

[0017] In one embodiment of the present invention, the sealing member includes two sealing rings with the same or different diameters, and sealing grooves are provided on both the fixed inclined surface and the connecting surface. The two sealing rings are respectively arranged in the sealing grooves of the fixed inclined surface and the connecting surface. A guide rod is provided on the fixed inclined surface, and a pin hole matching the guide rod is provided on the connecting surface. When the connecting seat is connected to the fixed seat, the two sealing rings are abutted or staggered.

[0018] In one embodiment of the present invention, the gate mechanism includes a gate frame, slide rails are provided on both sides of the gate frame, two sealing gates are slidably provided on the slide rails, the sealing gates are provided with an insulation layer, a sealing strip is provided on the edge of the feeding port, the sealing gate plate is connected to the driving assembly, and the driving assembly synchronously drives the two sealing gate plates to move relative to each other to open and close the feeding port.

[0019] In one embodiment of the present invention, the driving assembly includes a driving seat, the driving seat is arranged on the gate frame, a driving motor is arranged on the driving seat, a driven wheel is arranged on the gate frame, the driving motor is connected to the driving wheel, the driving wheel and the driven wheel are connected by a chain, and the chain is connected to the sealing gate plate.

[0020] Beneficial effects of the present invention:

[0021] The feeding bin of the present invention is sealed with the feeding port through a sealing component, the discharge port at the bottom of the feeding bin is arranged opposite to the feeding port, and the gate mechanism controls the opening and closing operation of the feeding port to add aluminum material to the cracking chamber, which can effectively prevent the heat of the cracking of the aluminum material from diffusing outward, improve the sealing and heat insulation effect of the feeding gate, and ensure the temperature in the furnace. At the same time, the return smoke pipeline discharges the smoke overflowing into the feeding bin during feeding into the high-temperature chamber, and the smoke overflowing from the cracking chamber into the feeding bin can be transferred to the high-temperature chamber or the cracking chamber for re-combustion and the generated heat can be reused, which does not pollute the environment, saves energy and saves costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a schematic diagram of the smoke exhaust structure of a charging sealing cover of the present invention.

[0023] Figure 2 It is a schematic diagram of a feeding mechanism of the present invention.

[0024] Figure 3 It is a schematic diagram of the smoke exhaust mechanism of the present invention.

[0025] Figure 4 It is a schematic diagram of a gate mechanism of the present invention.

[0026] Explanation of reference numerals in the figure: 1. Multi-chamber furnace body; 11. Cracking chamber; 12. Feeding port; 2. Feeding bin; 3. Gate mechanism; 31. Gate frame; 32. Slide rail; 33. Sealing gate; 34. Sliding frame; 35. Insulation layer; 36. Driving motor; 37. Driving wheel; 38. Driven wheel; 39. Chain; 4. Sealing assembly; 41. Sealing frame; 42. Connecting port; 43. Sealing bracket; 44. Sealing ring ; 45. Sealing protrusion; 46. Sealing groove; 5. Vibrator; 6. Smoke exhaust pipe; 61. Fixing seat; 62. Fixing slope; 63. Sealing ring; 64. Connecting seat; 65. Connecting surface; 66. Guide rod; 7. Return smoke pipe; 71. Loop range hood; 72. Air inlet pipe; 73. Air outlet pipe; 74. Smoke exhaust mechanism; 75. Main pipe; 76. Smoke inlet; 77. Branch pipe; 78. Pipeline valve. DETAILED DESCRIPTION

[0027] The present invention will be further described below with reference to the accompanying drawings and specific embodiments so that those skilled in the art can better understand the present invention and implement it. However, the embodiments are not intended to limit the present invention.

[0028] Reference Figure 1-4 As shown, a charging sealing cover smoke exhaust structure includes:

[0029] Applied to a multi-chamber furnace body 1, the multi-chamber furnace body 1 is provided with a cracking chamber 11 and a plurality of high-temperature chambers, the cracking chamber 11 is connected to the high-temperature chamber, and the cracking chamber 11 is provided with a feeding port 12;

[0030] A gate mechanism 3 is provided on the feeding port 12 and is used to control the opening and closing operation of the feeding port 12;

[0031] A feeding mechanism is provided above the gate mechanism 3, comprising a feeding bin 2 and a sealing assembly 4. The sealing assembly 4 is provided on the gate mechanism 3, the feeding bin 2 is sealedly connected to the feeding port 12 via the sealing assembly 4, and the discharge port at the bottom of the feeding bin 2 is arranged opposite to the feeding port 12;

[0032] The smoke exhaust mechanism 74 is arranged on the charging bin 2, and the smoke exhaust mechanism 74 includes a smoke exhaust pipe 6. The smoke exhaust pipe 6 is arranged on the charging bin 2. A smoke return pipe 7 is provided on the multi-chamber furnace body 1. The smoke exhaust pipe 6 is connected to the high-temperature chamber through the smoke return pipe 7. The smoke return pipe 7 is used to discharge the smoke overflowing into the charging bin 2 during charging into the high-temperature chamber.

[0033] The feeding bin 2 of the present invention is sealed and connected to the feeding port 12 through a sealing component 4. The discharge port at the bottom of the feeding bin 2 is arranged opposite to the feeding port 12. The gate mechanism 3 controls the opening and closing operation of the feeding port 12 to add aluminum material to the cracking chamber 11, which can effectively prevent the heat of the cracking of the aluminum material from diffusing outward, improve the sealing and heat insulation effect of the feeding gate, and ensure the temperature in the furnace. At the same time, the return smoke pipe 7 discharges the flue gas overflowing into the feeding bin 2 during feeding into the high-temperature chamber, and the flue gas overflowing from the cracking chamber 11 into the feeding bin 2 can be transferred to the high-temperature chamber or the cracking chamber 11 for combustion again and the generated heat can be reused, which not only does not pollute the environment, but also saves energy and saves costs.

[0034] In one embodiment of the present invention, the return smoke pipeline 7 includes a mounting frame, on which a return smoke fan 71 is provided. The return smoke fan 71 is connected to the air inlet pipe 72, and the air outlet end of the return smoke fan 71 is connected to the air outlet pipe 73, and the air outlet pipe 73 is connected to the high-temperature chamber.

[0035] Specifically, the connecting seat 64 on the smoke exhaust pipe 6 on the side of the charging bin 2 moves from top to bottom. Since the fixed inclined surface 62 is inclined toward the charging bin 2, the fixed inclined surface 62 on the fixed seat 61 and the connecting surface 65 on the connecting seat 64 are arranged opposite to each other, so that the flue gas overflowing from the cracking chamber 11 can be returned to the high-temperature chamber for continued combustion, thereby improving the combustion efficiency, recovering the flue gas well, and effectively preventing the overflow of toxic flue gas.

[0036] In one embodiment of the present invention, the air outlet pipe 73 includes a main pipe 75, which is connected to at least one branch pipe 77. The branch pipe 77 is connected to the smoke inlet 76 of the high-temperature chamber. A pipeline valve 78 is provided on the branch pipe 77. The branch pipe 77 can also be connected to the cracking chamber 11 to reuse the cracking flue gas for combustion.

[0037] Specifically, the loop smoke machine 71 transports the flue gas in the charging bin 2 to the high-temperature chamber for combustion through a branch pipe 77 connected to the main pipe 75, which can recycle the flue gas well, effectively avoid the overflow of toxic flue gas, and improve the combustion efficiency of aluminum materials. A pipeline valve 78 is provided on the branch pipe 77 to control the flue gas volume of each branch pipe 77, which plays the role of adjusting the flue gas volume of each combustion chamber. The branch pipes 77 can also be connected to each other to avoid problems such as high flue gas pressure in individual combustion chambers.

[0038] In one embodiment of the present invention, a fixing seat 61 is provided on the free end of the air inlet pipe 72, and a connecting seat 64 matching the fixing seat 61 is provided on the smoke exhaust pipe 6. The connecting seat 64 is connected to the fixing seat 61 via a seal.

[0039] In one embodiment of the present invention, a fixing slope 62 is provided on the fixing seat 61 , and a connecting surface 65 matching the fixing slope 62 is provided on the connecting seat 64 . The fixing slope 62 is inclined toward the feeding bin 2 .

[0040] Specifically, the connecting seat 64 on the smoke exhaust pipe 6 on the side of the silo moves from top to bottom. Since the fixed inclined surface 62 is inclined toward the feeding silo 2, the fixed inclined surface 62 on the fixed seat 61 and the connecting surface 65 on the connecting seat 64 are arranged relative to each other, which can facilitate the quick connection of the smoke exhaust pipe 6 and the air intake pipe. The structure is simple. At the same time, the air intake pipe can play a certain supporting and guiding role on the feeding silo 2. The structure is convenient and practical.

[0041] In one embodiment of the present invention, the sealing assembly 4 includes a sealing frame 41, the sealing frame 41 is covered on the gate mechanism 3, a connecting port 42 matching the discharge port is opened on the sealing frame 41, a sealing bracket 43 is provided on the edge of the connecting port 42, at least one sealing ring 44 is provided on the sealing bracket 43, a sealing protrusion 45 is provided at the bottom of the feeding bin 2, a sealing groove 46 matching the sealing protrusion 45 is provided on the sealing ring 44, the cross-section of the sealing groove 46 is a trumpet-shaped structure, and the sealing protrusion 45 is clamped on the sealing groove 46.

[0042] Specifically, the bottom of the feeding bin 2 is placed above the sealing frame 41 of the cracking chamber 11, and after the sealing protrusion 45 at the bottom of the feeding bin 2 is aligned with the sealing groove 46, the lifting device drives the feeding bin 2 to fall so that the sealing protrusion 45 at the bottom of the feeding bin 2 moves toward the sealing groove 46 on the sealing ring 44, so that the feeding bin 2 is placed on the sealing ring 44, and the sealing protrusion 45 is stuck in the sealing groove 46 of the sealing ring 44, completing the sealed connection between the feeding bin 2 and the sealing frame 41; since the cross-section of the sealing groove 46 is a trumpet-mouth structure, the sealing protrusion 45 of the feeding bin 2 can slide into the sealing groove 46 more smoothly, and the positioning seal can be quickly achieved.

[0043] In one embodiment of the present invention, a vibrator 5 is provided at the bottom of the feeding bin 2 , and the vibrator 5 is arranged opposite to the sealing protrusion 45 .

[0044] Specifically, the vibrator 5 at the bottom of the feeding bin 2 is turned on. At this time, the lifting equipment does not loosen the feeding bin 2. The vibrator 5 causes the bottom of the feeding bin 2 to shake to a certain extent, so that the sealing protrusion 45 is stuck in the sealing groove 46 of the sealing ring 44, completing the sealing connection between the feeding bin 2 and the sealing frame 41; the shaking of the vibrator 5 can make the sealing ring 63 fit more tightly, so that the sealing effect on both sides of the feeding bin 2 is better. At the same time, the vibrator 5 vibrates the feeding bin 2, which can make the aluminum material in the feeding bin 2 discharge more smoothly, avoid the problem of material jamming, and improve processing efficiency.

[0045] In one embodiment of the present invention, the sealing member includes two sealing rings 63 with the same or different diameters, and sealing grooves are provided on the fixed inclined surface 62 and the connecting surface 65. The two sealing rings 63 are respectively arranged in the sealing grooves of the fixed inclined surface 62 and the connecting surface 65. A guide rod 66 is provided on the fixed inclined surface 62, and a pin hole matching the guide rod 66 is provided on the connecting surface 65. When the connecting seat 64 is connected to the fixed seat 61, the two sealing rings 63 are abutted or staggered.

[0046] Specifically, the fixing inclined surface 62 on the fixing seat 61 is arranged opposite to the connecting surface 65 on the connecting seat 64. The feeding bin 2 continues to move downward so that the guide rod 66 on the fixing seat 61 passes through the pin hole. The guide rod 66 is arranged parallel to the up and down movement direction of the feeding bin 2, which can guide the connecting seat 64 and the feeding bin 2, making it convenient to align and seal the connecting seat 64 with the fixing seat 61.

[0047] Since the two sealing rings 63 are respectively arranged in the sealing grooves of the fixed inclined surface 62 and the connecting surface 65, under the action of gravity of the charging bin 2, the sealing protrusion 45 is clamped in the sealing groove 46 and the two sealing rings 63 are abutted or staggered when the connecting seat 64 is connected to the fixed seat 61, thereby completing the connection of the smoke exhaust pipe 6 to the air inlet pipe 72. The abutment or staggered arrangement of the two sealing rings 63 can effectively prevent smoke from overflowing, and no manual alignment is required. The shaking of the vibrator 5 can make the sealing ring 63 fit more tightly, thereby improving the sealing effect of the smoke exhaust.

[0048] In one embodiment of the present invention, the gate mechanism 3 includes a gate frame 31, and slide rails 32 are provided on both sides of the gate frame 31. Two sealing gates 33 are slidably provided on the slide rails 32. An insulation layer 35 is provided on the sliding frame 34 of the sealing gate 33. A sealing strip is provided on the edge of the feeding port 12. The sealing gate plate is driven and connected to the driving component, and the driving component synchronously drives the two sealing gate plates to move relative to each other to open and close the feeding port 12.

[0049] Specifically, the sealing gate 33 moves along the slide rail 32, so that the two sealing gates 33 are moved synchronously to both sides or in the center to open and close the feeding port 12, effectively preventing the heat of the aluminum cracking from diffusing outward. The insulation layer 35 has a sealing and heat-insulating effect, effectively maintaining the temperature in the aluminum cracking furnace from dissipating from the feeding port, thereby ensuring the temperature in the furnace.

[0050] In one embodiment of the present invention, the driving assembly includes a driving seat, which is arranged on the gate frame 31, and a driving motor 36 is provided on the driving seat. A driven wheel 38 is provided on the gate frame 31, and the driving motor 36 is connected to the driving wheel 37. The driving wheel 37 and the driven wheel 38 are connected by a chain 39, and the chain 39 is connected to the sealing gate plate.

[0051] Specifically, the driving motors 36 on both sides respectively drive the corresponding driving wheels 37 to rotate, so as to drive the sealing gate 33 connected to the chain 39 to move along the slide rail 32, so that the two sealing gates 33 are synchronously moved to both sides to open the feeding port 12. The use of the motor chain 39 to drive the sealing gate 33 can avoid the heat of the sealing gate 33 from being transferred to the driving device, effectively extending the service life of the driving device and ensuring the stability of the drive.

[0052] Usage process

[0053] The lifting device moves the charging bin 2 to the top of the cracking chamber 11 of the multi-chamber furnace body 1. The charging bin 2 is an existing charging bin 2 structure, and the discharge port at the bottom thereof is provided with an existing opening and closing door structure such as a sliding door. The bottom of the charging bin 2 is placed above the sealing frame 41 of the cracking chamber 11. After the sealing protrusion 45 at the bottom of the charging bin 2 is aligned with the sealing groove 46, the lifting device drives the charging bin 2 to fall so that the sealing protrusion 45 at the bottom of the charging bin 2 moves toward the sealing groove 46 on the sealing ring 44, so that the charging bin 2 is opened. The bin 2 is placed on the sealing ring 44, and the vibrator 5 at the bottom of the feeding bin 2 is turned on at the same time. At this time, the lifting equipment does not loosen the feeding bin 2, and the vibrator 5 causes the bottom of the feeding bin 2 to shake to a certain extent, so that the sealing protrusion 45 is stuck in the sealing groove 46 of the sealing ring 44, completing the sealing connection between the feeding bin 2 and the sealing frame 41; since the cross-section of the sealing groove 46 is a bell-mouth structure, the sealing protrusion 45 of the feeding bin 2 can slide more smoothly into the sealing groove 46, and the sealing can be quickly positioned;

[0054] At the same time, the connecting seat 64 on the smoke exhaust pipe 6 on the side of the charging bin 2 moves from top to bottom. Since the fixing inclined surface 62 is inclined toward the charging bin 2, the fixing inclined surface 62 on the fixing seat 61 is arranged opposite to the connecting surface 65 on the connecting seat 64. The charging bin 2 continues to move downward so that the guide rod 66 on the fixing seat 61 is passed through the pin hole. The guide rod 66 is arranged parallel to the up and down movement direction of the charging bin 2, which can facilitate the alignment and sealing of the connecting seat 64 and the fixing seat 61. Since the two sealing rings 63 are respectively arranged in the sealing grooves of the fixing inclined surface 62 and the connecting surface 65, under the action of gravity of the charging bin 2, the sealing protrusion 45 is clamped in the sealing groove 46. At the same time, when the connecting seat 64 is connected to the fixing seat 61, the two sealing rings 63 abut or are staggered, thereby completing the connection of the air inlet 72 of the smoke exhaust pipe 6;

[0055] The driving motors 36 on both sides respectively drive the corresponding driving wheels 37 to rotate, driving the sealing gates 33 connected to the chain 39 to move along the slide rail 32, so that the two sealing gates 33 are synchronously moved to both sides to open the feeding port 12, and a sliding door is provided on the discharge port at the bottom of the feeding bin 2 to open the discharge port, and the aluminum material in the feeding bin 2 is fed into the cracking chamber 11 through the feeding port 12. At the same time, the flue gas in the cracking chamber 11 will overflow into the feeding bin 2, and the loop smoke machine 71 starts the exhaust pipe 6 to exhaust the flue gas in the feeding bin 2. The loop smoke machine 71 transports the flue gas in the feeding bin 2 to the high-temperature chamber for combustion through the branch pipe 77 connected to the main pipe 75, which can recycle the flue gas well, effectively avoid the overflow of toxic flue gas, and improve the combustion efficiency of the aluminum material.

[0056] The above-described embodiments are merely preferred embodiments for the purpose of fully illustrating the present invention, and the scope of protection of the present invention is not limited thereto. Equivalent substitutions or modifications made by those skilled in the art based on the present invention are within the scope of protection of the present invention. The scope of protection of the present invention shall be subject to the claims.

Claims

1. A fume exhaust structure for a charging and sealing cover, characterized in that: include: Applied to a multi-chamber furnace body, the multi-chamber furnace body is provided with a cracking chamber and multiple high-temperature chambers, the cracking chamber is connected to the high-temperature chamber, and the cracking chamber is provided with a feeding port; A gate mechanism is provided on the feeding port, and is used to control the opening and closing operation of the feeding port; A feeding mechanism is provided above the gate mechanism, comprising a feeding bin and a sealing assembly, the sealing assembly being provided on the gate mechanism, the feeding bin being sealedly connected to the feeding port via the sealing assembly, and a discharge port at the bottom of the feeding bin being provided opposite to the feeding port; A smoke exhaust mechanism is arranged on the charging bin, and the smoke exhaust mechanism includes a smoke exhaust pipe. The smoke exhaust pipe is arranged on the charging bin, and a return smoke pipe is provided on the multi-chamber furnace body. The smoke exhaust pipe is connected to the high-temperature chamber through the return smoke pipe. The return smoke pipe is used to discharge the smoke overflowing into the charging bin during charging into the high-temperature chamber.

2. The fume exhaust structure of the charging and sealing cover according to claim 1, characterized in that: The return smoke pipeline includes a mounting frame, on which a return smoke machine is provided. The return smoke machine is connected to the air inlet pipe, the air outlet end of the return smoke machine is connected to the air outlet pipe, and the air outlet pipe is connected to the high temperature chamber.

3. The fume exhaust structure of the charging and sealing cover according to claim 2, characterized in that: The air outlet pipe includes a main pipe, the main pipe is connected to at least one branch pipe, the branch pipe is connected to the smoke inlet of the high temperature chamber, and a pipeline valve is provided on the branch pipe.

4. The fume exhaust structure of the charging and sealing cover according to claim 2, characterized in that: A fixing seat is provided on the free end of the air inlet pipe, and a connecting seat matching the fixing seat is provided on the smoke exhaust pipe. The connecting seat is connected to the fixing seat via a sealing member.

5. The fume exhaust structure of the charging and sealing cover according to claim 4, characterized in that: The fixing seat is provided with a fixing inclined surface, and the connecting seat is provided with a connecting surface matching the fixing inclined surface, and the fixing inclined surface is inclined toward the direction of the feeding bin.

6. The fume exhaust structure of the charging and sealing cover according to claim 1, characterized in that: The sealing assembly includes a sealing frame, the sealing frame cover is arranged on the gate mechanism, the sealing frame is provided with a connecting port matching the discharge port, the edge of the connecting port is provided with a sealing frame, at least one sealing ring is provided on the sealing frame, the bottom of the feeding bin is provided with a sealing protrusion, the sealing ring is provided with a sealing groove matching the sealing protrusion, the cross-section of the sealing groove is a trumpet structure, and the sealing protrusion is clamped on the sealing groove.

7. The fume exhaust structure of the charging and sealing cover according to claim 6, characterized in that: A vibrator is provided at the bottom of the feeding bin, and the vibrator is arranged opposite to the sealing protrusion.

8. The fume exhaust structure of the charging and sealing cover according to claim 5, characterized in that: The sealing member includes two sealing rings with the same or different diameters, and sealing grooves are provided on both the fixed inclined surface and the connecting surface. The two sealing rings are respectively arranged in the sealing grooves of the fixed inclined surface and the connecting surface. A guide rod is provided on the fixed inclined surface, and a pin hole matching the guide rod is provided on the connecting surface. When the connecting seat is connected to the fixed seat, the two sealing rings are abutted or staggered.

9. The fume exhaust structure of the charging and sealing cover according to claim 1, characterized in that: The gate mechanism includes a gate frame, slide rails are provided on both sides of the gate frame, two sealing gates are slidably provided on the slide rails, the sealing gates are provided with an insulation layer, a sealing strip is provided on the edge of the feeding port, the sealing gate plate is connected to the driving component, and the driving component synchronously drives the two sealing gate plates to move relative to each other to open and close the feeding port.

10. The fume exhaust structure of the charging and sealing cover according to claim 9, characterized in that: The driving assembly includes a driving seat, which is arranged on the gate frame. A driving motor is arranged on the driving seat, and a driven wheel is arranged on the gate frame. The driving motor is connected to the driving wheel, and the driving wheel and the driven wheel are connected by a chain, and the chain is connected to the sealing gate plate.

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