A high-speed rail polymetallic zinc ore smelting furnace

Abstract

The present invention relates to the field of zinc ore smelting, specifically to a high-iron polymetallic zinc ore smelting furnace, which includes a discharge cylinder, a heating mechanism, a spraying mechanism, an exhaust mechanism, a desulfurization mechanism, a driving mechanism and a connecting mechanism; when zinc ore falls into the interior of the desulfurization mechanism for heating to generate flue gas and then is discharged through the exhaust mechanism, after the zinc ore is processed inside the desulfurization mechanism, the driving mechanism drives the desulfurization mechanism to rotate, opens the desulfurization mechanism, so that the raw materials inside the desulfurization mechanism fall into the interior of the heating mechanism, and at the same time drives the spraying mechanism to spray the reducing agent onto the raw materials, so that the raw materials continue to be processed inside the heating mechanism. When the driving mechanism drives the desulfurization mechanism to rotate, the driving mechanism drives the connecting mechanism to continuously move up and down inside the exhaust mechanism, and at the same time the connecting mechanism drives the exhaust mechanism to continuously rotate up and down, so that the dust adsorbed inside the exhaust mechanism moves downward and falls into the interior of the desulfurization mechanism, preventing the exhaust mechanism from being blocked by soot.

Description

Technical Field

[0001] The present invention relates to the field of zinc ore smelting, specifically to a high-iron polymetallic zinc ore smelting furnace. Background Art

[0002] Smelting is a refining technology used to extract metals from ores by methods such as roasting, smelting, electrolysis, and using chemical reagents; reducing the impurities contained in the metal or increasing a certain component in the metal to produce the required metal. Smelting is divided into pyrometallurgy, hydrometallurgical extraction, or electrochemical deposition.

[0003] When zinc ore is roasted inside the smelting furnace, a large amount of flue gas containing dust and sulfur dioxide is generated when the zinc ore is heated. When the flue gas containing dust and sulfur dioxide is discharged through the exhaust pipe, the soot adsorbs on the inner side wall of the exhaust pipe, which is likely to cause the exhaust pipe to be blocked. The blocked pipe causes the internal pressure of the smelting furnace to gradually increase, reducing the safety of using the smelting furnace. Summary of the Invention

[0004] In view of the problems in the prior art, the present invention provides a high-iron polymetallic zinc ore smelting furnace.

[0005] The technical solution adopted by the present invention to solve its technical problems is: a high-iron polymetallic zinc ore smelting furnace, including a discharge cylinder, a heating mechanism, a spraying mechanism, an exhaust mechanism, a desulfurization mechanism, a driving mechanism, and a connecting mechanism. The discharge cylinder is fixed at the bottom of the heating mechanism used for heating and decomposing the ore. The desulfurization mechanism for removing sulfur-containing substances in the ore is rotatably connected inside the heating mechanism. The driving mechanism for driving the desulfurization mechanism to rotate is installed at the top of the desulfurization mechanism. And the exhaust mechanism for discharging the flue gas containing dust and sulfur dioxide is installed on the side wall of the desulfurization mechanism. The connecting mechanism for driving the exhaust mechanism to continuously rotate up and down is installed inside the exhaust mechanism. The connecting mechanism is slidably connected to the side wall of the driving mechanism; the spraying mechanism for adding a reducing agent to the ore is installed inside the heating mechanism.

[0006] Preferably, the heating mechanism includes a first cylinder, a connecting rod, an electric heating rod, a fixing ring, a partition board, and a stirring rod. The discharge cylinder is installed at the bottom of the first cylinder. The hollow cylindrical partition board is installed inside the first cylinder. The electric heating rods are equidistantly installed inside the partition board. The fixing ring is rotatably connected between the partition board and the first cylinder. The stirring rod is obliquely installed on the side wall of the fixing ring. The stirring rod is rotatably connected to the inside of the first cylinder.

[0007] Preferably, the desulfurization mechanism includes a second cylinder body, a connecting pipe, a discharge port, a jet pipe, and a fixing column. The second cylinder body is rotatably connected inside the partition plate, and the inner bottom surface of the second cylinder body is inclined; the bottom end of the second cylinder body and the side wall of the partition plate are respectively arranged at the discharge port, and the cross-sectional area of the discharge port on the side wall of the partition plate is larger than that of the discharge port on the side wall of the second cylinder body; the fixing column is installed inside the second cylinder body, the connecting pipe is installed inside the fixing column, the jet pipes are equidistantly installed inside the second cylinder body, and the jet pipes communicate with the connecting pipe.

[0008] Preferably, the exhaust mechanism includes an exhaust pipe, a filter screen, a first baffle, and a second baffle. The exhaust pipe is installed at the top end of the second cylinder body, the first baffle and the second baffle are rotatably connected inside the exhaust pipe, the filter screen with an arc-shaped side wall is installed at the bottom end of the second baffle, and the elastic filter screen abuts against the top surface of the first baffle.

[0009] Preferably, the driving mechanism includes a variable-frequency motor, a fixing plate, a clamping groove, and a fixing frame. The variable-frequency motor is installed at the top end of the second cylinder body, the fixing plate with a hemispherical top end is installed at the top end of the fixing column, the connecting pipe is rotatably connected inside the fixing plate, and the jet pipes are equidistantly installed on the side wall of the fixing plate; the clamping groove is obliquely arranged on the side wall of the fixing plate, and the fixing frame with a spherical end is slidably connected inside the clamping groove, and the fixing frame is slidably connected inside the exhaust pipe.

[0010] Preferably, the connecting mechanism includes a rotating shaft, a gear, and a rack. The rotating shaft is rotatably connected to the side wall of the exhaust pipe, and the rotating shaft is fixedly connected to the first baffle and the second baffle; the gear is installed on the side wall of the rotating shaft, the gear meshes with the rack, and the rack is fixed to the side wall of the fixing frame.

[0011] Preferably, the spraying mechanism includes a spraying pipe, a support frame, a roller, and a convex block. The spraying pipe is installed on the side wall of the first cylinder body, the support frame is installed at the bottom end of the spraying pipe, the roller is rotatably connected inside the support frame, the convex blocks with arc-shaped side walls are equidistantly installed on the side wall of the roller, and the roller is aligned with the discharge port on the side wall of the first cylinder body.

[0012] Advantages of the present invention:

[0013] (1) For the high-speed rail polymetallic zinc ore smelting furnace of the present invention, when zinc ore is crushed and falls into the desulfurization mechanism for heating, at the same time, oxygen continuously sprays out from the bottom end of the desulfurization mechanism, the oxygen is evenly mixed with the zinc ore, and at the same time, the oxygen drives the zinc ore to continuously turn over upwards to be evenly heated. At the same time, the oxygen reacts with the zinc ore to generate sulfur-containing sulfur dioxide flue gas, and the flue gas is discharged through the exhaust mechanism, which is convenient for people to process.

[0014] (2) After the zinc ore is processed inside the desulfurization mechanism of the present invention, the driving mechanism drives the desulfurization mechanism to rotate, opens the desulfurization mechanism, so that the raw materials inside the desulfurization mechanism fall into the heating mechanism, and at the same time drives the spraying mechanism to spray the reducing agent into the raw materials, so that the raw materials continue to be processed inside the heating mechanism.

[0015] (3) When the driving mechanism drives the desulfurization mechanism to rotate in the high-iron polymetallic zinc ore smelting furnace of the present invention, the driving mechanism drives the connecting mechanism to continuously move up and down inside the exhaust mechanism, and at the same time the connecting mechanism drives the exhaust mechanism to continuously rotate up and down, so that the dust adsorbed inside the exhaust mechanism moves downward and falls into the desulfurization mechanism, preventing the exhaust mechanism from being blocked by soot. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The present invention will be further described below in conjunction with the drawings and embodiments.

[0017] Figure 1 It is a schematic structural diagram of a preferred embodiment of a high-iron polymetallic zinc ore smelting furnace provided by the present invention;

[0018] Figure 2 is Figure 1 The enlarged schematic diagram of the structure at position B shown;

[0019] Figure 3 is Figure 1 The enlarged schematic diagram of the structure at position A shown;

[0020] Figure 4 is Figure 1 The top view of the internal structure of the second cylinder shown;

[0021] Figure 5 is Figure 2 The schematic diagram of the fixing plate structure shown;

[0022] Figure 6 is Figure 3 The schematic diagram of the internal structure of the exhaust mechanism shown;

[0023] Figure 7 is Figure 3 The enlarged schematic diagram of the structure at position C shown;

[0024] Figure 8 is Figure 1 The schematic diagram of the spraying mechanism structure shown.

[0025] In the figure: 1, discharge cylinder; 2, heating mechanism; 21, first cylinder body; 22, connecting rod; 23, electric heating rod; 24, fixing ring; 25, partition board; 26, stirring rod; 3, spraying mechanism; 31, spraying pipe; 32, support frame; 33, roller; 34, convex block; 4, exhaust mechanism; 41, exhaust pipe; 42, filter screen; 43, first baffle plate; 44, second baffle plate; 5, desulfurization mechanism; 51, second cylinder body; 52, connecting pipe; 53, discharge port; 54, air injection pipe; 55, fixing column; 6, driving mechanism; 61, variable frequency motor; 62, fixing plate; 63, clamping groove; 64, fixing frame; 7, connecting mechanism; 71, rotating shaft; 72, gear; 73, toothed plate. Detailed implementation mode

[0026] In order to make the technical means, creative features, achieved purposes and functions of the present invention easy to understand, the present invention will be further described below in conjunction with the specific implementation modes.

[0027] As Figures 1 - 8 shown, a high-speed rail polymetallic zinc ore smelting furnace of the present invention includes a discharge cylinder 1, a heating mechanism 2, a spraying mechanism 3, an exhaust mechanism 4, a desulfurization mechanism 5, a driving mechanism 6 and a connecting mechanism 7. The discharge cylinder 1 is fixed at the bottom of the heating mechanism 2 for heating and decomposing ore. The desulfurization mechanism 5 for removing sulfur-containing substances in the ore is rotatably connected inside the heating mechanism 2. The driving mechanism 6 for driving the desulfurization mechanism 5 to rotate is installed at the top of the desulfurization mechanism 5. And the exhaust mechanism 4 for discharging dust-containing sulfur dioxide flue gas is installed on the side wall of the desulfurization mechanism 5. The connecting mechanism 7 for driving the exhaust mechanism 4 to continuously rotate up and down is installed inside the exhaust mechanism 4. The connecting mechanism 7 is slidably connected to the side wall of the driving mechanism 6. The spraying mechanism 3 for adding a reducing agent to the ore is installed inside the heating mechanism 2.

[0028] The heating mechanism 2 includes a first cylinder body 21, a connecting rod 22, an electric heating rod 23, a fixing ring 24, a partition plate 25 and a stirring rod 26. The discharging cylinder 1 is installed at the bottom end of the first cylinder body 21. The hollow cylindrical partition plate 25 is installed inside the first cylinder body 21. The electric heating rods 23 are installed equidistantly inside the partition plate 25. The fixing ring 24 is rotatably connected between the partition plate 25 and the first cylinder body 21. The stirring rods 26 are installed obliquely on the side wall of the fixing ring 24. The stirring rods 26 are rotatably connected to the inside of the first cylinder body 21. In order to facilitate the mixture of the desulfurization raw materials and the reducing agent to fall into the inside of the first cylinder body 21, so that the raw materials are continuously heated inside the first cylinder body 21, and the connecting rod 22 drives the fixing ring 24 to rotate at the bottom end of the first cylinder body 21, and the fixing ring 24 drives the stirring rods 26 to rotate at the bottom end of the first cylinder body 21, so that the stirring rods 26 continuously stir the raw materials, making the raw materials mixed and heated evenly. The raw materials are heated to generate zinc vapor and are discharged from the inside of the first cylinder body 21.

[0029] The desulfurization mechanism 5 includes a second cylinder body 51, a connecting pipe 52, a discharging port 53, a jet pipe 54 and a fixing column 55. The second cylinder body 51 is rotatably connected inside the partition plate 25. The inner bottom surface of the second cylinder body 51 is inclined; the bottom end of the second cylinder body 51 and the side wall of the partition plate 25 are respectively provided with the discharging port 53, and the cross-sectional area of the discharging port 53 on the side wall of the partition plate 25 is larger than the cross-sectional area of the discharging port 53 on the side wall of the second cylinder body 51; the fixing column 55 is installed inside the second cylinder body 51, the connecting pipe 52 is installed inside the fixing column 55, the jet pipes 54 are installed equidistantly inside the second cylinder body 51, the jet pipes 54 are communicated with the connecting pipe 52, and the two ends of the connecting rod 22 are respectively fixedly connected to the fixing ring 24 and the second cylinder body 51. In order to facilitate the continuous entry of oxygen into the inside of the jet pipes 54 through the connecting pipe 52, the oxygen is ejected from the bottom end of the jet pipes 54 and enters the bottom end of the second cylinder body 51. The oxygen moves upward to push the ore to continuously turn up and down inside the second cylinder body 51, making the ore heated evenly. At the same time, the oxygen reacts with the ore to generate sulfur dioxide flue gas. At the same time, the oxygen pushes the sulfur dioxide flue gas to continuously move upward and enter the inside of the exhaust pipe 41. At the same time, when the ore is desulfurized, the second cylinder body 51 rotates, so that the discharging port 53 on the side wall of the second cylinder body 51 is aligned with the discharging port 53 on the side wall of the partition plate 25, so that the raw materials inside the second cylinder body 51 pass through the discharging port 53 and fall into the inside of the first cylinder body 21 for processing.

[0030] The exhaust mechanism 4 includes an exhaust pipe 41, a filter screen 42, a first baffle 43 and a second baffle 44. The exhaust pipe 41 is installed at the top end of the second cylinder body 51. The first baffle 43 and the second baffle 44 are rotatably connected inside the exhaust pipe 41. The filter screen 42 with an arc-shaped side wall is installed at the bottom end of the second baffle 44. The elastic filter screen 42 abuts against the top surface of the first baffle 43. The dust-containing sulfur dioxide flue gas enters the inside of the exhaust pipe 41. The sulfur dioxide flue gas contacts the first baffle 43 and the second baffle 44, so that the flue gas moves upward in a zigzag manner through the gap between the first baffle 43 and the second baffle 44, and the flue gas penetrates through the filter screen 42. Thus, the dust in the flue gas moves downward and falls on the side walls of the first baffle 43 and the second baffle 44. The filter screen 42 blocks the dust in the flue gas, thereby reducing the dust content in the sulfur dioxide flue gas and facilitating people to process the sulfur dioxide flue gas.

[0031] The driving mechanism 6 includes a variable-frequency motor 61, a fixing plate 62, a clamping groove 63 and a fixing frame 64. The variable-frequency motor 61 is installed at the top end of the second cylinder body 51. The fixing plate 62 with a hemispherical top end is installed at the top end of the fixing column 55. The connecting pipe 52 is rotatably connected inside the fixing plate 62. The jet pipes 54 are equidistantly installed on the side wall of the fixing plate 62. The clamping groove 63 is obliquely arranged on the side wall of the fixing plate 62. One end of the fixing frame 64 with a spherical shape is slidably connected inside the clamping groove 63, and the fixing frame 64 is slidably connected inside the exhaust pipe 41. In order to facilitate the variable-frequency motor 61 to drive the fixing plate 62, the fixing column 55 and the second cylinder body 51 to rotate, the rotation of the fixing plate 62 drives the clamping groove 63 to rotate. One end of the fixing frame 64 is located inside the exhaust pipe 41. The clamping groove 63 is obliquely arranged on the side wall of the fixing plate 62. When the clamping groove 63 rotates, the clamping groove 63 squeezes the fixing frame 64, driving the fixing frame 64 to continuously move up and down.

[0032] The connecting mechanism 7 includes a rotating shaft 71, a gear 72 and a toothed plate 73. The rotating shaft 71 is rotatably connected to the side wall of the exhaust pipe 41, and the rotating shaft 71 is fixedly connected to the first baffle 43 and the second baffle 44. The gear 72 is mounted on the side wall of the rotating shaft 71, and the gear 72 meshes with the toothed plate 73. The toothed plate 73 is fixed to the side wall of the fixing frame 64. When the fixing frame 64 moves up and down continuously, the fixing frame 64 drives the toothed plate 73 to move up and down continuously. The toothed plate 73 drives the gear 72 and the rotating shaft 71 to rotate back and forth continuously. The rotating shaft 71 drives the first baffle 43, the second baffle 44 and the filter screen 42 to move up and down continuously. The elastic first baffle 43 and the filter screen 42 continuously squeeze the side wall of the exhaust pipe 41, causing the first baffle 43, the second baffle 44 and the filter screen 42 to vibrate continuously, so that the dust remaining on the first baffle 43, the second baffle 44 and the filter screen 42 moves downward and falls into the interior of the second cylinder 51.

[0033] The spraying mechanism 3 includes a spraying pipe 31, a support frame 32, a roller 33 and a convex block 34. The spraying pipe 31 is mounted on the side wall of the first cylinder 21. The support frame 32 is mounted at the bottom end of the spraying pipe 31. The roller 33 is rotatably connected inside the support frame 32. The convex blocks 34 with an arc-shaped side wall are equidistantly mounted on the side wall of the roller 33. The roller 33 is aligned with the discharge port 53 on the side wall of the first cylinder 21. When the raw material inside the second cylinder 51 is discharged through the discharge port 53, the raw material is sprayed obliquely downward through the discharge port 53 and contacts the side wall of the roller 33, pushing the roller 33 to rotate on the side wall of the support frame 32. The roller 33 drives the convex blocks 34 to rotate at the bottom end of the spraying pipe 31. The distance between the roller 33 and the spraying pipe 31 is small. The reducing agent continuously moves downward from the inside of the spraying pipe 31 and falls onto the surface of the roller 33. As the roller 33 and the convex blocks 34 rotate, the convex blocks 34 and the roller 33 push the reducing agent falling from the spraying pipe 31 towards the direction of the raw material, and the convex blocks 34 and the roller 33 disperse the reducing agent, increasing the spraying area of the reducing agent, so as to push the reducing agent inside the spraying pipe 31 out and spray it onto the raw material, making the raw material and the reducing agent mix evenly.

[0034] In use, connect the electric heating rod 23 and the variable-frequency motor 61 to an external power supply. The electric heating rod 23 generates heat, causing the temperature of the first cylinder 21 and the second cylinder 51 to continuously rise. Add an appropriate amount of powdered zinc ore to the second cylinder 51, connect the connecting pipe 52 to external oxygen, and oxygen continuously enters the interior of the jet pipe 54 through the connecting pipe 52. The oxygen is ejected from the bottom end of the jet pipe 54 and enters the bottom end of the second cylinder 51. The upward movement of the oxygen promotes the continuous up-and-down turning of the ore inside the second cylinder 51, making the ore evenly heated. At the same time, the oxygen reacts with the ore to generate sulfur dioxide flue gas, and the oxygen also promotes the continuous upward movement of the sulfur dioxide flue gas into the interior of the exhaust pipe 41. The dust-containing sulfur dioxide flue gas enters the interior of the exhaust pipe 41, contacts the first baffle 43 and the second baffle 44, and causes the flue gas to pass through the gap between the first baffle 43 and the second baffle 44 in a zigzag upward movement, and the flue gas penetrates through the filter screen 42. As a result, the dust in the flue gas moves downward and falls on the side walls of the first baffle 43 and the second baffle 44. The filter screen 42 blocks the dust in the flue gas, thereby reducing the dust content in the sulfur dioxide flue gas and facilitating the processing of the sulfur dioxide flue gas by people. After the powdered zinc ore inside the second cylinder 51 is discharged, turn on the variable-frequency motor 61. The variable-frequency motor 61 drives the fixing plate 62, the fixing column 55, and the second cylinder 51 to rotate, aligning the discharge port 53 on the side wall of the second cylinder 51 with the discharge port 53 on the side wall of the partition plate 25, so that the raw materials inside the second cylinder 51 pass through the discharge port 53 and fall into the interior of the first cylinder 21 for processing. The raw materials are sprayed obliquely downward through the discharge port 53 and contact the side wall of the drum 33, promoting the rotation of the drum 33 on the side wall of the support frame 32. The reducing agent continuously moves downward from the interior of the spraying pipe 31 and falls on the surface of the drum 33. As the drum 33 and the convex block 34 rotate, the convex block 34 and the drum 33 push the reducing agent falling from the spraying pipe 31 towards the direction of the raw materials, and the convex block 34 and the drum 33 with an arc-shaped side wall disperse the reducing agent, increasing the spraying area of the reducing agent, thereby pushing out the reducing agent inside the spraying pipe 31 and spraying it onto the raw materials to make the raw materials and the reducing agent evenly mixed.The second cylinder body 51 drives the connecting rod 22 to rotate. The connecting rod 22 drives the fixed ring 24 to rotate at the bottom end of the first cylinder body 21. The fixed ring 24 drives the stirring rod 26 to rotate at the bottom end of the first cylinder body 21, so that the stirring rod 26 continuously stirs the raw materials, making the raw materials evenly mixed and evenly heated. The fixing plate 62 rotates to drive the clamping groove 63 to rotate. One end of the fixing frame 64 is located inside the exhaust pipe 41. The clamping groove 63 is inclined on the side wall of the fixing plate 62. When the clamping groove 63 rotates, the clamping groove 63 presses the fixing frame 64, driving the fixing frame 64 to continuously move up and down. The fixing frame 64 drives the toothed plate 73 to continuously move up and down. The toothed plate 73 drives the gear 72 and the rotating shaft 71 to continuously rotate back and forth. The rotating shaft 71 drives the first baffle 43, the second baffle 44 and the filter screen 42 to continuously move up and down. The elastic first baffle 43 and the filter screen 42 continuously press against the side wall of the exhaust pipe 41, causing the first baffle 43, the second baffle 44 and the filter screen 42 to continuously vibrate, so that the dust remaining on the first baffle 43, the second baffle 44 and the filter screen 42 moves downward and falls into the interior of the second cylinder body 51. As the second cylinder body 51 rotates, when half of the raw materials in the second cylinder body 51 fall into the first cylinder body 21, by operating the frequency conversion motor 61 to operate, after the second cylinder body 51 is reset, the frequency conversion motor 61 stops operating. At this time, the discharge port 53 on the side wall of the second cylinder body 51 is closed by the partition plate 25, preventing the raw materials inside the second cylinder body 51 from leaking. Then zinc ore is put into the second cylinder body 51 for processing. The zinc ore enters the raw materials tumbling inside the second cylinder body 51, making the zinc ore quickly heated and continuously moving, reducing the desulfurization time of the zinc ore and increasing the production efficiency. Moreover, the heat emitted by the electric heating rod 23 enters the interiors of the first cylinder body 21 and the second cylinder body 51. The first cylinder body 21 wraps the second cylinder body 51, reducing heat loss.

[0035] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited by the above embodiments. The above embodiments and the descriptions in the specification only illustrate the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention will have various changes and improvements, and these changes and improvements all fall within the scope of the present invention claimed. The scope of the present invention claimed is defined by the appended claims and their equivalents.

Claims

1. A high-iron polymetallic zinc ore smelting furnace, characterized in that: It includes a discharge cylinder (1), a heating mechanism (2), a spraying mechanism (3), an exhaust mechanism (4), a desulfurization mechanism (5), a driving mechanism (6) and a connecting mechanism (7). The discharge cylinder (1) is fixed at the bottom end of the heating mechanism (2) used for heating and decomposing ores. Inside the heating mechanism (2), the desulfurization mechanism (5) for removing sulfur-containing substances in the ores is rotatably connected. At the top end of the desulfurization mechanism (5), the driving mechanism (6) for driving the desulfurization mechanism (5) to rotate is installed. And on the side wall of the desulfurization mechanism (5), the exhaust mechanism (4) for discharging dust-containing sulfur dioxide flue gas is installed. Inside the exhaust mechanism (4), the connecting mechanism (7) for driving the exhaust mechanism (4) to continuously rotate up and down is installed. The connecting mechanism (7) is slidably connected to the side wall of the driving mechanism (6). Inside the heating mechanism (2), the spraying mechanism (3) for adding a reducing agent to the ores is installed. The heating mechanism (2) includes a first cylinder body (21), a connecting rod (22), an electric heating rod (23), a fixing ring (24), a partition plate (25) and a stirring rod (26). The discharge cylinder (1) is installed at the bottom end of the first cylinder body (21). Inside the first cylinder body (21), the hollow cylindrical partition plate (25) is installed. Inside the partition plate (25), the electric heating rods (23) are installed at equal intervals. Between the partition plate (25) and the first cylinder body (21), the fixing ring (24) is rotatably connected. On the side wall of the fixing ring (24), the stirring rod (26) is installed obliquely. The stirring rod (26) is rotatably connected to the inside of the first cylinder body (21). The desulfurization mechanism (5) includes a second cylinder body (51), a connecting pipe (52), a discharge port (53), a jet pipe (54) and a fixing column (55). Inside the partition plate (25), the second cylinder body (51) is rotatably connected. The inner bottom surface of the second cylinder body (51) is inclined. The bottom end of the second cylinder body (51) and the side wall of the partition plate (25) are respectively provided with the discharge port (53). The cross-sectional area of the discharge port (53) on the side wall of the partition plate (25) is larger than the cross-sectional area of the discharge port (53) on the side wall of the second cylinder body (51). Inside the second cylinder body (51), the fixing column (55) is installed. Inside the fixing column (55), the connecting pipe (52) is installed. Inside the second cylinder body (51), the jet pipes (54) are installed at equal intervals. The jet pipes (54) communicate with the connecting pipe (52). The exhaust mechanism (4) includes an exhaust pipe (41), a filter screen (42), a first baffle (43) and a second baffle (44). The exhaust pipe (41) is installed at the top end of the second cylinder body (51). Inside the exhaust pipe (41), the first baffle (43) and the second baffle (44) are rotatably connected. At the bottom end of the second baffle (44), the filter screen (42) with an arc-shaped side wall is installed. The elastic filter screen (42) abuts against the top surface of the first baffle (43). The driving mechanism (6) includes a variable-frequency motor (61), a fixing plate (62), a card slot (63) and a fixing frame (64). The variable-frequency motor (61) is installed at the top end of the second cylinder body (51), and the fixing plate (62) with a hemispherical top end is installed at the top end of the fixing column (55). The connecting pipe (52) is rotatably connected inside the fixing plate (62), and the air spraying pipes (54) are equidistantly installed on the side wall of the fixing plate (62); the card slot (63) is obliquely arranged on the side wall of the fixing plate (62), and the fixing frame (64) with a spherical end is slidably connected inside the card slot (63), and the fixing frame (64) is slidably connected inside the exhaust pipe (41).

2. The high-iron polymetallic zinc ore smelting furnace according to claim 1, characterized in that: The connecting mechanism (7) includes a rotating shaft (71), a gear (72) and a toothed plate (73). The rotating shaft (71) is rotatably connected to the side wall of the exhaust pipe (41), and the rotating shaft (71) is fixedly connected to the first baffle (43) and the second baffle (44); the gear (72) is installed on the side wall of the rotating shaft (71), the gear (72) meshes with the toothed plate (73), and the toothed plate (73) is fixed to the side wall of the fixing frame (64).

3. The high-iron polymetallic zinc ore smelting furnace according to claim 2, characterized in that, The spraying mechanism (3) includes a spraying pipe (31), a support frame (32), a roller (33) and a convex block (34). The spraying pipe (31) is installed on the side wall of the first cylinder body (21), the support frame (32) is installed at the bottom end of the spraying pipe (31), the roller (33) is rotatably connected inside the support frame (32), the convex blocks (34) with an arc-shaped side wall are equidistantly installed on the side wall of the roller (33), and the roller (33) is aligned with the discharge port (53) on the side wall of the first cylinder body (21).

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