Secondary copper reflection smelting furnace door cover with large furnace door cover top suction pipeline and small furnace door cover top suction pipeline

Abstract

The invention relates to the technical field of smelting furnaces, in particular to a secondary copper reflection smelting furnace door cover with a large furnace door cover top suction pipeline and a small furnace door cover top suction pipeline. The secondary copper reflection smelting furnace door cover with the large furnace door cover top suction pipeline and the small furnace door cover top suction pipeline comprises a base, a smelting chamber is fixedly connected to the base, a discharging opening is formed in the smelting chamber, a valve for controlling opening and closing of the discharging opening is installed on the smelting chamber, a furnace door cover body is fixedly connected to the top of the base, and the smelting chamber is covered with the furnace door cover body. A combustion chamber is fixedly connected to the top of the base. The blocking piece is controlled through the second induction piece firstly, so that the blocking piece is automatically opened to facilitate feeding during feeding, the blocking piece automatically moves downwards for blocking after feeding is completed, waste gas, smoke dust and harmful substances generated in the smelting process are prevented from flying to a workshop to damage the health of workers, then the scraping piece is controlled to move up and down through the first pull rope and the second pull rope, and the safety is improved. Soot adhered to the inner wall of the smoke exhaust pipe is scraped off and is collected by the collecting box, so that high efficiency, safety and environmental protection of the reverberatory furnace for smelting the recycled copper are ensured.

Description

Technical Field

[0001] The invention relates to the technical field of smelting furnaces, in particular to a furnace door cover of a secondary copper reflective smelting furnace with two large and small furnace door cover top suction pipes. Background Art

[0002] Recycled copper is an important industrial material. By recycling and reusing waste copper, we can reduce resource waste and environmental burden. The smelting furnace is a key equipment in the production of recycled copper. It is a metallurgical furnace that directly heats materials through flames to melt metals. The furnace door cover, as an important component of the smelting furnace, can effectively prevent the materials in the furnace from oxidizing at high temperatures, ensuring the smooth progress of the smelting process and the quality of the copper.

[0003] During the high-temperature smelting process, a large amount of exhaust gas, smoke and harmful substances, including sulfur dioxide, nitrogen oxides and particulate matter, will be generated. The smoke and harmful substances generated by these incineration will be discharged through the top suction pipe of the furnace door cover. If smelting is carried out for a long time at any time, a large amount of smoke ash accumulation may cause the top suction pipe of the furnace door cover to be narrowed or even blocked. The existing method for cleaning the smoke ash from the top suction pipe of the furnace door cover is that workers generally use a strong rope to tie an iron weight, and tie something like a brush just above the iron weight, put it in from the chimney mouth and pull it up and down to clean the smoke ash. However, this method is only suitable for the situation where the top suction pipe has a large diameter and the smoke ash accumulation is loose. If the top suction pipe has a small diameter or has a bend, it may not be possible to completely remove all the smoke ash in the flue, especially the stubborn smoke ash attached to the inner wall of the flue. In addition, mechanical ash removal requires manual operation by workers, which is labor-intensive and relatively inefficient.

[0004] Based on the above situation, the present invention proposes a furnace door cover of a secondary copper reflective smelting furnace having two large and small furnace door cover top suction pipes. Summary of the invention

[0005] In order to overcome the shortcomings that if the top suction pipe has a small diameter or has a bend, the cleaning method of tying a brush on an iron weight may not be able to completely remove all the soot in the flue, especially the stubborn soot attached to the inner wall of the flue, and mechanical ash removal requires manual operation by workers, with high labor intensity and relatively low efficiency, the present invention proposes a furnace door cover for a recycled copper reflective smelting furnace with two large and small furnace door cover top suction pipes.

[0006] The furnace door cover of the recycled copper reflective smelting furnace with two large and small furnace door cover top suction pipes includes a base, a smelting chamber is fixedly connected to the base, a discharge port is opened on the smelting chamber, a valve for controlling the opening and closing of the discharge port is installed on the smelting chamber, a furnace door cover body is fixedly connected to the top of the base, the furnace door cover body covers the smelting chamber, a combustion chamber is fixedly connected to the top of the base, the combustion chamber passes through the furnace door cover body and is connected to the smelting chamber, a fixing plate is fixedly connected to the base, symmetrically distributed smoke exhaust pipes are connected between the furnace door cover body and the fixing plate, a double-axis motor is installed on the furnace door cover body, the output shaft of the double-axis motor close to the smoke exhaust pipe side is connected to the first rope pulley through a coupling, the first rope pulley is rotatably connected to the furnace door cover body, and the first rope pulley is rotatably connected to the furnace door cover body. A symmetrically distributed first pull rope is wound around a rope pulley, symmetrically distributed smoke exhaust pipes are fixedly connected with fixing parts, symmetrically distributed fixing parts are fixedly connected with first guide rails, symmetrically distributed first guide rails are slidably connected with scraping parts, a second rope pulley is rotatably connected to one side of the symmetrically distributed smoke exhaust pipe close to the fixing parts, a torsion spring is connected between the second rope pulley and the adjacent smoke exhaust pipe, the symmetrically distributed torsion springs are wound around the adjacent second rope pulley, a second pull rope is wound around the symmetrically distributed second rope pulley, the movable ends of the second pull rope and the movable ends of the first pull rope are fixedly connected to the adjacent scraping parts, and a collecting assembly is provided on the side of the furnace door cover away from the dual-axis motor.

[0007] More preferably, the collecting assembly includes a screw rod, which is rotatably connected to the side of the furnace door cover away from the dual-axis motor, and a collecting box is threadedly connected to the screw rod, and the collecting box is slidably connected to the furnace door cover, and a one-way gear is fixedly connected to the side of the screw rod close to the first rope pulley, and a spur gear is fixedly connected to the side of the first rope pulley close to the screw rod.

[0008] More preferably, the spur gear meshes with the one-way gear.

[0009] More preferably, it also includes a blocking mechanism for covering the furnace door of the smelting chamber to prevent the smoke generated by the incineration from overflowing. The blocking mechanism is arranged on the furnace door cover. The blocking mechanism includes a cylinder. The symmetrically distributed cylinders are installed on the furnace door cover. The symmetrically distributed cylinders are all slidably connected with pistons. The bottoms of the symmetrically distributed pistons are all fixedly connected with lifting parts. The side of the furnace door cover away from the fixed plate is slidably connected with a blocking part. The distributed lifting parts and the blocking parts are all slidably connected. A control component is provided on the base.

[0010] More preferably, the control assembly includes a connecting shaft, which is fixed to a side of the base away from the fixed plate, and a pressure pedal is rotatably connected to the connecting shaft. A first sensing element is installed at the bottom of the pressure pedal, a second sensing element is installed on a side of the base close to the first sensing element, and a first spring is connected between the pressure pedal and the base.

[0011] More preferably, the second induction element is electrically connected to the symmetrically distributed cylinders via a control module.

[0012] More preferably, a cooling mechanism is included to prevent the smoke exhaust pipe from overheating during smoke exhaust. The cooling mechanism is arranged on the double-axis motor. The reciprocating screw is connected to the output shaft of the double-axis motor on the side away from the smoke exhaust pipe through a coupling. An extrusion piece is threadedly connected to the reciprocating screw. A connecting piece is fixedly connected between the symmetrically distributed smoke exhaust pipes on one side close to the extrusion piece. A second guide rail is fixedly connected to the connecting piece. A baffle is slidably connected to the second guide rail. A slope is provided on the side of the baffle close to the extrusion piece. A second spring is connected between the baffle and the top of the second guide rail. The second spring is wound around the second guide rail. The baffle and the connecting piece are also slidably connected. Symmetrically distributed one-way valves are installed on the connecting piece. A temperature sensor is installed in the connecting piece. The temperature sensor is electrically connected to the double-axis motor through a control module.

[0013] More preferably, the extrusion piece is extrusion-fitted with the inclined surface of the baffle.

[0014] More preferably, there is also a protection mechanism for stopping the cylinder from running when an obstacle presses against the downwardly moving blocking member to prevent it from continuing to apply force and causing damage. The protection mechanism is arranged on the symmetrically distributed lifting members, and the protection mechanism includes a connecting plate. The symmetrically distributed connecting plates are fixedly connected to the side of the blocking member close to the base, and pressure sensors are installed in the symmetrically distributed connecting plates. A third spring is connected between the pressure sensor and the adjacent lifting member.

[0015] More preferably, the pressure sensor is electrically connected to adjacent cylinders via a control module.

[0016] The present invention has the following advantages: the present invention first controls the blocking member through the second sensing member, so that the blocking member automatically opens when feeding to facilitate feeding, and automatically moves down to block after feeding is completed, so as to prevent the waste gas, smoke and harmful substances generated in the smelting process from drifting into the workshop and damaging the health of workers, and then controls the scraping member to move up and down through the first pull rope and the second pull rope to scrape off the smoke ash stuck on the inner wall of the exhaust pipe and collect it in a collection box for subsequent processing, thereby ensuring the high efficiency, safety and environmental protection of the reverberatory furnace smelting recycled copper.

[0017] The present invention cooperates with the temperature sensor and the dual-axis motor so that the one-way valve can automatically cool the smoke exhaust pipe according to the temperature, thereby preventing the smoke exhaust pipe from burning the air on the inner wall of the pipe due to high temperature, reducing the risk of fire in the smoke exhaust pipe, and improving the safety of the reverberatory furnace smelting process.

[0018] The present invention realizes the cooperation among the lifting member, the third spring and the pressure sensor, so that when the blocking member encounters an obstacle while moving downward, the cylinder can be controlled to drive it to move upward, thereby avoiding the cylinder from continuing to apply force and possibly causing damage, thereby ensuring the flexibility and safety of the equipment when processing waste copper materials. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention.

[0020] Figure 2 It is a partial three-dimensional structural schematic diagram of the present invention.

[0021] Figure 3 It is a sectional view of the three-dimensional structure of the collecting box, scraping member, screw rod and other components of the present invention.

[0022] Figure 4 It is a sectional view of the three-dimensional structure of the first guide rail, the fixing member, the second rope pulley and other components of the present invention.

[0023] Figure 5 It is a sectional view of the three-dimensional structure of the cylinder, piston, lifting member and other components of the present invention.

[0024] Figure 6 It is a sectional view of the three-dimensional structure of the connecting shaft, the pressure pedal, the first spring and other components of the present invention.

[0025] Figure 7 It is a schematic diagram of the three-dimensional structure of the reciprocating screw, extrusion piece, baffle and other components of the present invention.

[0026] Figure 8 It is a schematic diagram of the three-dimensional structure of the connecting piece, the second guide rail, the second spring and other components of the present invention.

[0027] Fig. 9 It is a schematic diagram of the three-dimensional structure of the lifting member, the third spring, the connecting plate and other components of the present invention.

[0028] Fig.10 It is a sectional view of the three-dimensional structure of the blocking member, pressure sensor, connecting plate and other components of the present invention.

[0029] Names of the symbols in the figure: 1. furnace door cover, 101. smelting chamber, 102. base, 103. combustion chamber, 104. valve, 11. exhaust pipe, 1101. fixing plate, 12. double-axis motor, 13. first rope pulley, 14. first pull rope, 15. spur gear, 16. one-way gear, 17. screw rod, 18. collecting box, 19. scraper, 110. first guide rail, 111. fixing part, 112. second rope pulley, 113. second pull rope , 114, torsion spring, 2, cylinder, 21, piston, 22, lifting member, 23, blocking member, 24, pressure pedal, 25, connecting shaft, 26, first sensing member, 27, second sensing member, 28, first spring, 3, reciprocating screw, 31, extrusion member, 32, baffle, 33, connecting member, 34, second guide rail, 35, second spring, 36, one-way valve, 37, temperature sensor, 4, third spring, 41, pressure sensor, 42, connecting plate. DETAILED DESCRIPTION

[0030] The present invention is further described in detail below in conjunction with the accompanying drawings and specific embodiments, but the protection scope and application scope of the present invention are not limited.

[0031] Example 1: A furnace door cover of a secondary copper reverberatory smelting furnace having two large and small furnace door cover top suction pipes, such as Figure 1 , Figure 2 , Figure 3 and Figure 4 As shown, it includes a base 102, a smelting chamber 101 is fixedly connected to the base 102, a discharge port is opened at the lower right side of the smelting chamber 101, a valve 104 for controlling the opening and closing of the discharge port is installed at the lower right side of the smelting chamber 101, a furnace door cover 1 is fixedly connected to the rear side of the top of the base 102, the furnace door cover 1 covers the upper part of the smelting chamber 101, a combustion chamber 103 is fixedly connected to the right side of the top of the base 102, the combustion chamber 103 passes through the furnace door cover 1 and is connected to the smelting chamber 101, a fixing plate 1101 is fixedly connected to the rear side of the base 102, symmetrically distributed smoke exhaust pipes 11 are connected between the furnace door cover 1 and the fixing plate 1101, a double-axis motor 12 is installed on the upper left side of the furnace door cover 1, the output shaft on the right side of the double-axis motor 12 is connected to the first rope pulley 13 through a coupling, and the first rope pulley 13 is rotatably connected to the furnace door cover 1 Then, a symmetrically distributed first pull rope 14 is wound around the first rope pulley 13, a fixing part 111 is fixedly connected to the upper inner part of the two smoke exhaust pipes 11, a first guide rail 110 is fixedly connected to the two fixing parts 111, a scraper 19 is slidably connected to the two first guide rails 110, a second rope pulley 112 is rotatably connected to one side of the two smoke exhaust pipes 11 close to the fixing part 111, a torsion spring 114 is connected between the second rope pulley 112 and the adjacent smoke exhaust pipe 11, the two torsion springs 114 are wound around the adjacent second rope pulley 112, a second pull rope 113 is wound around the two second rope pulleys 112, the movable ends of the second pull rope 113 and the movable ends of the first pull rope 14 are fixedly connected to the adjacent scraper 19, and a collecting component is provided on the side of the furnace door cover 1 away from the dual-axis motor 12.

[0032] like Figure 3 and Figure 4 As shown, the collecting assembly includes a screw rod 17, which is rotatably connected to the upper right side of the furnace door cover 1, and a collecting box 18 is threadedly connected to the screw rod 17. The collecting box 18 is slidably connected to the right wall of the furnace door cover 1, and a one-way gear 16 is fixedly connected to the left side of the screw rod 17, and a spur gear 15 is fixedly connected to the right side of the first rope pulley 13, and the spur gear 15 is meshed with the one-way gear 16.

[0033] like Figure 5 and Figure 6As shown, it also includes a blocking mechanism for covering the furnace door of the smelting chamber 101 to prevent the smoke generated by the incineration from overflowing. The blocking mechanism is arranged on the furnace door cover 1. The blocking mechanism includes a cylinder 2. The two cylinders 2 are respectively installed on the left and right sides of the furnace door cover 1. The two cylinders 2 are slidably connected with pistons 21. The bottoms of the two pistons 21 are fixedly connected with lifting members 22. The front side of the furnace door cover 1 is slidably connected with a blocking member 23. The two lifting members 22 are slidably connected to the blocking member 23. A control component is provided on the base 102.

[0034] like Figure 6 As shown, the control component includes a connecting shaft 25, the connecting shaft 25 is fixedly connected to the front side of the base 102, the pressure pedal 24 is rotatably connected to the connecting shaft 25, a first sensor 26 is installed at the bottom of the pressure pedal 24, a second sensor 27 is installed at the front of the base 102, a first spring 28 is connected between the pressure pedal 24 and the base 102, and the second sensor 27 is electrically connected to the two cylinders 2 through the control module.

[0035] Initially, the blocking member 23 is in contact with the base 102, that is, the blocking member 23 blocks the feed port on the front side of the smelting chamber 101. When the device is used, the staff pushes the charging cart to the side of the smelting chamber 101, and the charging cart presses on the pressure pedal 24 to make it rotate downward, thereby driving the first sensing member 26 to move downward until it contacts the second sensing member 27, and the first spring 28 will be deformed. At this time, the second sensing member 27 will control the piston 21 to drive the lifting member 22 to move upward, thereby driving the blocking member 23 to move upward, and the blocking member 23 will no longer By blocking the feed port of the smelting chamber 101, the staff can put the waste copper materials on the charging cart into the smelting chamber 101, and then pull the charging cart away from the pressure pedal 24. Under the elastic action of the first spring 28, the pressure pedal 24 flips upward and resets, thereby driving the first sensing member 26 to move upward until it is separated from the second sensing member 27. At this time, the cylinder 2 will control the piston 21 to drive the lifting member 22 to move downward, thereby driving the blocking member 23 to move downward and reset. At this time, the combustion chamber 103 can be controlled to melt the waste copper materials in the smelting chamber 101.

[0036] When the smelting is completed, the copper liquid can be discharged to the copper ingot making machine through the valve 104 and subsequent operations can be carried out. Since the smoke and harmful substances generated during the smelting process will be discharged outward through the smoke exhaust pipe 11 on the furnace door cover 1, as the smelting time increases, a large amount of smoke ash accumulation may cause the smoke exhaust pipe 11 to be narrowed or even blocked. At this time, the inner wall of the smoke exhaust pipe 11 needs to be cleaned. The specific operation is as follows: the staff can first control the double-axis motor 12 to drive the first rope pulley 13 to reverse and release the first pull rope 14, thereby driving the spur gear 15 to reverse. The spur gear 15 will drive the screw rod 17 to rotate through the one-way gear 16, and then drive the collection box 18 to move to the left to enter the furnace door cover 1. At this time, the collection box 18 will be located directly below the smoke inlet of the two smoke exhaust pipes 11, and then control the double-axis motor 12 to drive the first rope pulley 13 to rotate forward to rewind the first pull rope 14, and the screw rod 17 remains stationary.

[0037] As the first rope wheel 13 continues to reel in the first pull rope 14, the first pull rope 14 will pull the scraper 19 downward, and the scraper 19 moving downward will scrape off the soot stuck to the inner wall of the smoke exhaust pipe 11, and the scraped soot will fall into the collection box 18 from the smoke inlet. At the same time, the scraper 19 moving downward will also pull the second pull rope 113, causing the second rope wheel 112 to rotate in the opposite direction, and the torsion spring 114 will be twisted. When the scraper 19 moves downward to the lower side of the first guide rail 110, the dual-axis motor 12 is controlled to drive the first rope wheel 13 to reverse and release the first pull rope 14. According to the previous steps, the spur gear 15 will drive the screw rod 17 to continue to rotate through the one-way gear 16, so that the collection box 18 moves to the right and resets, and the collection box 18 filled with soot is moved out of the furnace door cover 1.

[0038] The staff can use tools to clean the ash in the collection box 18. At the same time, under the action of the torsion spring 114, the second rope pulley 112 will rotate forward to reset and reel in the second pull rope 113, thereby driving the scraper 19 to move upward and reset. In summary, the blocking member 23 is first controlled by the second sensing member 27, so that the blocking member 23 automatically opens to facilitate feeding during feeding, and automatically moves down to block after the feeding is completed, so as to prevent the waste gas, smoke and harmful substances generated during the smelting process from drifting into the workshop and damaging the health of workers. The first pull rope 14 and the second pull rope 113 are then used to control the scraper 19 to move up and down, and the ash stuck to the inner wall of the smoke exhaust pipe 11 is scraped off and collected in the collection box 18 for subsequent processing, thereby ensuring the high efficiency, safety and environmental protection of the reverberatory furnace smelting of recycled copper.

[0039] Embodiment 2: Based on embodiment 1, Figure 7 and Figure 8As shown, it also includes a cooling mechanism for preventing the smoke exhaust pipe 11 from overheating during the smoke exhaust process. The cooling mechanism is arranged on the dual-axis motor 12, the reciprocating screw 3 is connected to the output shaft on the left side of the dual-axis motor 12 through a coupling, the extrusion piece 31 is threadedly connected to the reciprocating screw 3, a connecting piece 33 is fixedly connected between the two smoke exhaust pipes 11 on one side close to the extrusion piece 31, the second guide rail 34 is fixedly connected to the connecting piece 33, the baffle 32 is slidably connected to the second guide rail 34, an inclined surface is provided on the left side of the baffle 32, a second spring 35 is connected between the baffle 32 and the top of the second guide rail 34, the second spring 35 is wound around the second guide rail 34, the baffle 32 and the connecting piece 33 are also slidably connected, four one-way valves 36 are installed on the left and right sides of the rear wall of the connecting piece 33, a temperature sensor 37 is installed in the connecting piece 33, the temperature sensor 37 is electrically connected to the dual-axis motor 12 through a control module, and the extrusion piece 31 is extruded and matched with the inclined surface of the baffle 32.

[0040] As the smelting time increases, the temperature in the smoke exhaust pipe 11 is too high, which will cause the pipe to heat up. Long-term high temperature may cause the air on the inner wall of the pipe to burn. In severe cases, there may even be a risk of fire in the smoke exhaust pipe 11, causing equipment damage or fire. Therefore, it is necessary to cool down the smoke exhaust pipe 11 when the temperature is too high. The specific operation is as follows: when the temperature in the smoke exhaust pipe 11 reaches the preset value of the temperature sensor 37, the temperature sensor 37 will control the dual-axis motor 12 to rotate forward for a period of time and pause. At this time, the dual-axis motor 12 will drive the reciprocating screw 3 to rotate, thereby driving the extrusion member 31 to move to the right until it contacts the inclined surface of the baffle 32. The baffle 32 will resist the extrusion member 31, so that the baffle 32 moves upward to withdraw from the connecting member 33, the second spring 35 will deform, and the baffle 32 will no longer block the one-way valve 36. The external cold air will enter the smoke exhaust pipe 11 through the one-way valve 36, thereby cooling the smoke exhaust pipe 11.

[0041] Similarly, when the temperature in the smoke exhaust pipe 11 is lower than the preset value of the temperature sensor 37, the temperature sensor 37 controls the dual-axis motor 12 to continue to rotate forward for a period of time and then pause. At this time, the extrusion piece 31 will move to the left and reset to separate from the baffle 32. Under the elastic action of the second spring 35, the baffle 32 moves downward and resets to block the one-way valve 36. In summary, through the cooperation of the temperature sensor 37 and the dual-axis motor 12, the one-way valve 36 can automatically cool the smoke exhaust pipe 11 according to the temperature, thereby preventing the smoke exhaust pipe 11 from burning due to the high temperature of the pipe inner wall, reducing the risk of fire in the smoke exhaust pipe 11, and improving the safety of the reverberatory furnace smelting process.

[0042] like Fig. 9 and Fig.10As shown, there is also a protection mechanism for stopping the cylinder 2 from running when an obstacle presses against the blocking member 23 moving downward to prevent it from continuing to apply force and causing damage. The protection mechanism is arranged on the two lifting members 22, and the protection mechanism includes a connecting plate 42. There are two connecting plates 42, and the connecting plates 42 are respectively fixed to the left and right sides of the lower part of the blocking member 23. Pressure sensors 41 are installed in the two connecting plates 42. A third spring 4 is connected between the pressure sensor 41 and the adjacent lifting member 22. The pressure sensor 41 and the adjacent cylinder 2 are electrically connected through a control module.

[0043] When discarded copper materials are put into the smelting chamber 101, if some scattered copper materials fall under the blocking member 23, the blocking member 23 will press on the copper materials when it moves downward. As the piston 21 continues to drive the lifting member 22 to move downward, the blocking member 23 and the connecting plate 42 remain stationary relative to the lifting member 22, and the lifting member 22 continues to move downward, causing the third spring 4 to deform, thereby applying a downward pressure to the pressure sensor 41. At this time, the pressure sensor 41 controls the cylinder 2 to drive the piston 21 to move upward and pause for a period of time, so that the blocking member 2 3 moves upward and stays for a period of time. At this time, the staff can quickly pick up the copper material under the blocking member 23 and put it into the smelting chamber 101. After a period of time, the blocking member 23 continues to move downward until it contacts the base 102. At this time, the blocking member 23 covers it very tightly. In summary, through the cooperation of the lifting member 22, the third spring 4, and the pressure sensor 41, when the blocking member 23 encounters an obstacle when moving downward, it can control the cylinder 2 to drive it to move upward, avoiding the cylinder 2 from continuing to apply force and possibly causing damage, thereby ensuring the flexibility and safety of the equipment when processing waste copper materials.

[0044] The above description is only an example of the present invention and is not intended to limit the present invention. Any equivalent substitutions made within the principles of the present invention should be included in the protection scope of the present invention. The contents not elaborated in detail in the present invention belong to the existing technologies known to those skilled in the art.

Claims

1. A furnace door cover of a recycled copper reflective smelting furnace having two large and small furnace door cover top suction pipes, comprising a base (102), a smelting chamber (101) fixedly connected to the base (102), a discharge port opened on the smelting chamber (101), a valve (104) for controlling the opening and closing of the discharge port installed on the smelting chamber (101), a furnace door cover (1) fixedly connected to the top of the base (102), the furnace door cover (1) covers the smelting chamber (101), a combustion chamber (103) fixedly connected to the top of the base (102), the combustion chamber (103) passes through the furnace door cover (1) and is connected to the smelting chamber (101), a fixing plate (1101) fixedly connected to the base (102), symmetrically distributed smoke exhaust pipes (11) are connected between the furnace door cover (1) and the fixing plate (1101), characterized in that: The invention also comprises a double-shaft motor (12), the double-shaft motor (12) being installed on the furnace door cover (1), the output shaft of the double-shaft motor (12) on the side close to the smoke exhaust pipe (11) being connected to a first rope pulley (13) through a coupling, the first rope pulley (13) being rotatably connected to the furnace door cover (1), symmetrically distributed first pull ropes (14) being wound around the first rope pulley (13), the symmetrically distributed smoke exhaust pipes (11) being fixedly connected with fixing members (111), the symmetrically distributed fixing members (111) being fixedly connected with first guide rails (110), and the symmetrically distributed first guide rails (110) being slidably connected with scraping members (19) A second rope pulley (112) is rotatably connected to one side of the symmetrically distributed smoke exhaust pipe (11) near the fixed member (111), a torsion spring (114) is connected between the second rope pulley (112) and the adjacent smoke exhaust pipe (11), the symmetrically distributed torsion springs (114) are wound around the adjacent second rope pulley (112), a second pull rope (113) is wound around the symmetrically distributed second rope pulley (112), the movable ends of the second pull rope (113) and the movable ends of the first pull rope (14) are fixedly connected to the adjacent scraper (19), and a collecting component is provided on the side of the furnace door cover (1) away from the dual-axis motor (12).

2. The door cover of the secondary copper reverberatory smelting furnace with two large and small door cover top suction pipes according to claim 1, characterized in that: The collecting assembly comprises a screw rod (17), the screw rod (17) being rotatably connected to a side of a furnace door cover (1) away from a dual-axis motor (12), a collecting box (18) being threadedly connected to the screw rod (17), the collecting box (18) being slidably connected to the furnace door cover (1), a one-way gear (16) being fixedly connected to a side of the screw rod (17) close to a first rope pulley (13), and a spur gear (15) being fixedly connected to a side of the first rope pulley (13) close to the screw rod (17).

3. The door cover of the secondary copper reverberatory smelting furnace with two large and small door cover top suction pipes according to claim 2, characterized in that: The spur gear (15) meshes with the one-way gear (16).

4. The door cover of the secondary copper reverberatory smelting furnace with two large and small door cover top suction pipes according to claim 3, characterized in that: The invention also comprises a blocking mechanism for covering the furnace door of the smelting chamber (101) to prevent the smoke generated by the combustion from overflowing. The blocking mechanism is arranged on the furnace door cover (1). The blocking mechanism comprises a cylinder (2). The symmetrically distributed cylinders (2) are installed on the furnace door cover (1). The symmetrically distributed cylinders (2) are all slidably connected with pistons (21). The bottoms of the symmetrically distributed pistons (21) are all fixedly connected with lifting members (22). The side of the furnace door cover (1) away from the fixed plate (1101) is slidably connected with a blocking member (23). The symmetrically distributed lifting members (22) and the blocking member (23) are all slidably connected. A control component is provided on the base (102).

5. The door cover of the secondary copper reverberatory smelting furnace with two large and small door cover top suction pipes according to claim 4, characterized in that: The control assembly comprises a connecting shaft (25), the connecting shaft (25) being fixedly connected to a side of the base (102) away from the fixed plate (1101), a pressure pedal (24) being rotatably connected to the connecting shaft (25), a first sensing element (26) being installed at the bottom of the pressure pedal (24), a second sensing element (27) being installed at a side of the base (102) close to the first sensing element (26), and a first spring (28) being connected between the pressure pedal (24) and the base (102).

6. The door cover of the secondary copper reverberatory smelting furnace with two large and small door cover top suction pipes according to claim 5, characterized in that: The second induction element (27) is electrically connected to the symmetrically distributed cylinders (2) via a control module.

7. The door cover of the secondary copper reverberatory smelting furnace with two large and small door cover top suction pipes according to claim 6, characterized in that: The invention also comprises a cooling mechanism for preventing the smoke exhaust pipe (11) from overheating during smoke exhaust. The cooling mechanism is arranged on the double-shaft motor (12). The reciprocating screw (3) is connected to the output shaft of the double-shaft motor (12) on the side away from the smoke exhaust pipe (11) through a coupling. An extrusion piece (31) is threadedly connected to the reciprocating screw (3). A connecting piece (33) is fixedly connected between the sides of the symmetrically distributed smoke exhaust pipes (11) close to the extrusion piece (31). A second guide rail (34) is fixedly connected to the connecting piece (33). A sliding guide rail (34) is provided on the second guide rail (34). A baffle (32) is connected, and a slope is provided on one side of the baffle (32) close to the extrusion piece (31). A second spring (35) is connected between the baffle (32) and the top of the second guide rail (34), and the second spring (35) is wound on the second guide rail (34). The baffle (32) and the connecting piece (33) are also slidably connected, and symmetrically distributed one-way valves (36) are installed on the connecting piece (33). A temperature sensor (37) is installed in the connecting piece (33), and the temperature sensor (37) is electrically connected to the dual-axis motor (12) through a control module.

8. The door cover of the secondary copper reverberatory smelting furnace with two large and small door cover top suction pipes according to claim 7, characterized in that: The extrusion piece (31) is extruded and matched with the inclined surface of the baffle (32).

9. The door cover of the secondary copper reverberatory smelting furnace with two large and small door cover top suction pipes according to claim 8, characterized in that: The invention also includes a protection mechanism for stopping the cylinder (2) from operating when an obstacle abuts against the blocking member (23) moving downward to prevent the cylinder (2) from continuing to apply force and possibly causing damage. The protection mechanism is arranged on the symmetrically distributed lifting members (22). The protection mechanism includes a connecting plate (42). The symmetrically distributed connecting plates (42) are fixedly connected to a side of the blocking member (23) close to the base (102). Pressure sensors (41) are installed in the symmetrically distributed connecting plates (42). A third spring (4) is connected between the pressure sensor (41) and the adjacent lifting member (22).

10. The door cover of the secondary copper reverberatory smelting furnace with two large and small door cover top suction pipes according to claim 9, characterized in that: The pressure sensor (41) and the adjacent cylinder (2) are electrically connected via a control module.

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