Smelting furnace for continuously fuming low-grade tin material

Abstract

The utility model relates to the technical field of smelting furnaces, in particular to a smelting furnace for continuously fuming a low-grade tin material, which comprises a heat collection cylinder, a smoke discharge pipe, a smoke discharge pipe and a smoke discharge pipe, the driving mechanism comprises a driving assembly, a rotating shaft is arranged on the surface of the driving assembly, and a plurality of water guide frames and water stirring blocks are fixedly connected to the surface of the rotating shaft; according to the device, the rotating shaft, the water guide frame and the water stirring block are driven to rotate through the driving assembly, the rotating shaft, the water guide frame and the water stirring block rise and fall in a reciprocating mode in the rotating process through the driving disc to stir water in the heat collecting barrel, and then the flowability of the water in the heat collecting barrel is improved; according to the mode, water in the heat collecting cylinder is stirred to flow, so that heat of smoke in the smoke exhaust pipe is better absorbed by flowing water, it is guaranteed that the water in the heat collecting cylinder is evenly heated, and then the smoke waste heat recovery effect is improved.

Description

Technical Field

[0001] This utility model relates to the field of smelting furnace technology, and in particular to a smelting furnace for continuous fumigation of low-grade tin materials. Background Technology

[0002] A smelting furnace is a device used to smelt metals. Through high-temperature reduction, oxidation, or chlorination reactions, it converts valuable components in ores or scrap metals into liquid metal. To extract tin metal from low-grade raw materials, smelting furnaces are typically used to process low-grade tin ore continuously.

[0003] According to the search, the Chinese patent "A Waste Heat Utilization Device for a Metal Smelting Furnace" authorized announcement number "CN220959649U" realizes the heating of the water inside the heat collector by the flow of hot flue gas in the flue pipe through the flue pipe, the heat collector box and the water inlet pipe, so as to achieve the purpose of waste heat recovery and utilization and avoid the waste of heat in the flue gas to be discharged into the atmosphere.

[0004] In the aforementioned application, because the water is left to stand in the heat collection box, the water near the exhaust pipe heats up faster, while the water far from the exhaust pipe heats up slower, resulting in uneven heating of the water in the heat collection box, which in turn affects the effect of recovering waste heat from the hot flue gas.

[0005] Therefore, a smelting furnace for continuous fumigation of low-grade tin materials is proposed to solve the above problems. Utility Model Content

[0006] The purpose of this invention is to provide a smelting furnace for continuous fumigation of low-grade tin materials in order to solve the above-mentioned problems, thereby improving the problem of uneven heating of water in the heat collection box by the hot smoke in the exhaust pipe.

[0007] This utility model achieves the above-mentioned objective through the following technical solution: a smelting furnace for continuous fumigation of low-grade tin materials, comprising: a heat collection cylinder, the inner wall of which is provided with a flue pipe; a driving mechanism, the driving mechanism including a driving assembly, the surface of which is provided with a rotating shaft, the surface of which is fixedly connected with a plurality of water guide frames and a water stirring block, the upper end of which is fixedly connected with two limiting blocks, the top end of which is fixedly connected with a driving disk, and the upper end of which is slidably connected to the end of the driving disk. The drive assembly drives the rotating shaft, water guide frame, and water stirring block to rotate. The rotating shaft slides at the end of the drive disc. As the shaft slides towards the highest point of the drive disc, it causes the shaft, water guide frame, and water stirring block to move upward. As the shaft slides towards the lowest point of the drive disc, it causes the shaft, water guide frame, and water stirring block to move downward. This reciprocating motion of the rotating shaft, water guide frame, and water stirring block fully agitates the water in the heat collection cylinder, increasing its fluidity. This allows the flowing water to better absorb the heat from the flue gas in the exhaust pipe, ensuring uniform heating of the water in the heat collection cylinder and improving the efficiency of flue gas waste heat recovery.

[0008] Preferably, the driving assembly includes a first gear rotatably connected to the top of the heat collection cylinder, the surfaces of the rotating shaft and the limiting block being slidably connected to the inner wall of the first gear, a second gear meshing with the surface of the first gear, a servo motor fixedly connected to the top of the heat collection cylinder, and the output shaft of the servo motor fixedly connected to the top of the second gear. Through the servo motor, the second gear, and the first gear, the rotation of the first gear drives the limiting block and the rotating shaft to rotate, thereby causing the rotating shaft to slide at the end of the drive disc, thus enabling the rotating shaft to automatically rise and fall, thereby ensuring the effective agitation of the water inside the heat collection cylinder by the rotating shaft, the water guide frame, and the water stirring block.

[0009] Preferably, the water guide frame is funnel-shaped, and the water stirring block is V-shaped.

[0010] Preferably, the bottom of the stirring block forms an angle with the horizontal plane, and the bottom of the drive disc forms an angle with the horizontal plane.

[0011] Preferably, a groove is provided at the lower end of the inner wall of the rotating shaft, a slide frame is slidably connected to the inner wall of the groove, a ball bearing is slidably connected to the bottom end of the slide frame, and the surface of the ball bearing is slidably connected to the inner bottom wall of the heat collection cylinder.

[0012] Preferably, a spring is fixedly connected to the top of the carriage, and the top of the spring is fixedly connected to the inner wall of the rotating shaft.

[0013] Preferably, a circular groove is formed at the lower end of the inner wall of the heat collection cylinder, and the surface of the slide is slidably connected to the inner wall of the circular groove. Through the circular groove, spring, ball bearings, and slide, the rotating shaft is supported and limited, ensuring the stability of the rotating shaft during rotation.

[0014] Preferably, the surface of the flue pipe is fixedly connected with a ring of fixed rods, and the bottom end of the fixed rods is fixedly connected to the inner bottom wall of the heat collection cylinder.

[0015] The beneficial effects of this utility model are:

[0016] 1. The drive component drives the rotating shaft, water guide frame, and water stirring block to rotate. The drive disc enables the rotating shaft, water guide frame, and water stirring block to reciprocate and lift, stirring the water in the heat collection cylinder. This increases the fluidity of the water in the heat collection cylinder. Compared to the existing method where the water in the heat collection box is static, resulting in uneven heating of the water by the flue pipe, this method stirs the water in the heat collection cylinder to make the flowing water better absorb the heat of the flue gas in the flue pipe, ensuring uniform heating of the water in the heat collection cylinder and thus improving the effect of flue gas waste heat recovery.

[0017] 2. Through the servo motor, the second gear and the first gear, the rotation of the first gear drives the limit block and the rotating shaft to rotate, thereby causing the rotating shaft to slide at the end of the drive disk, so that the rotating shaft can automatically rise and fall, thus ensuring the effect of the rotating shaft, the water guide frame and the water stirring block on the water in the heat collection cylinder. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0019] Figure 2 This is a cross-sectional view of the heat collection cylinder of this utility model;

[0020] Figure 3 This is a schematic diagram of the drive mechanism structure of this utility model;

[0021] Figure 4 for Figure 3 A magnified view of A in the middle.

[0022] In the diagram: 1. Exhaust pipe; 2. Heat collector cylinder; 3. Drive mechanism; 31. Rotating shaft; 32. Water guide frame; 33. Water stirring block; 34. Drive disc; 35. Drive assembly; 351. First gear; 352. Second gear; 353. Servo motor; 36. Fixed rod; 37. Circular groove; 38. Limiting block; 39. Slide groove; 310. Slide carriage; 311. Spring; 312. Ball bearing. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0024] In practical implementation: such as Figure 1-4 As shown, a smelting furnace for continuous fumigation of low-grade tin materials includes: a heat collection cylinder 2, with an exhaust pipe 1 on the inner wall of the heat collection cylinder 2; a drive mechanism 3, including a drive assembly 35, with a rotating shaft 31 on the surface of the drive assembly 35, a plurality of water guide frames 32 and a water stirring block 33 fixedly connected to the surface of the rotating shaft 31, two limiting blocks 38 fixedly connected to the upper end of the surface of the rotating shaft 31, a drive disk 34 fixedly connected to the top of the heat collection cylinder 2, and the upper end of the surface of the rotating shaft 31 slidably connected to the end of the drive disk 34. The water guide frames 32 are funnel-shaped, the water stirring block 33 is V-shaped, the bottom of the water stirring block 33 forms an angle with the horizontal plane, and the bottom of the drive disk 34 forms an angle with the horizontal plane.

[0025] The collector cylinder 2 has a base at its bottom, and a smelting furnace and a flue gas treatment box at the top of the base. The upper surface of the exhaust pipe 1 passes through a rotating shaft 31 and connects to the inside of the flue gas treatment box. An exhaust fan is connected to the top of the flue gas treatment box, which is filled with flue gas treatment liquid and contains an activated carbon filter. A water inlet pipe is connected to the top of the collector cylinder 2, and a water outlet pipe is connected to the lower surface of the collector cylinder 2. A temperature sensor is located on the lower inner wall of the collector cylinder 2. The water inlet pipe and the water outlet pipe are connected to corresponding pipes via flange connections.

[0026] The crushed low-grade tin material is fed into the preheating section, where it is preheated with hot water in the heat collector 2 to increase the material's temperature and reduce energy consumption in the furnace. The material, now heated by residual heat, is then fed into the smelting furnace along with oxygen-enriched combustion feedstock, thus achieving continuous melting and fumigation of the low-grade tin material. This makes the entire smelting process a continuous and stable smelting process. Inside the furnace, the feedstock undergoes reduction and oxidation reactions, reducing tin from oxides to form liquid tin. The reduced tin and impurities melt at high temperatures to form tin matte. This tin matte is then transferred to a tin matte bath for further processing. The tin matte is collected from the bath and further refined into pure tin. The smelting furnace process for low-grade tin material is a relatively mature existing technology and will not be elaborated upon here.

[0027] When smelting low-grade tin materials in a smelting furnace, after introducing treatment liquid into the flue gas treatment box and guiding cold water into the heat collection cylinder 2, the exhaust fan is manually turned on. The exhaust fan draws out excess air from the flue gas treatment box, creating a negative pressure inside the flue gas treatment box. This causes the exhaust pipe 1 to draw out the flue gas generated in the smelting furnace, allowing the flue gas to flow within the exhaust pipe 1. At this time, the drive assembly 35 drives the rotating shaft 31 to rotate. The rotation of the rotating shaft 31 drives the funnel-shaped water guide frame 32 and the V-shaped water stirring block 33 to rotate, stirring the water in the heat collection cylinder 2. At this time, the rotating shaft 31 moves in a ring on the drive disk 34. As the rotating shaft 31 slides towards the highest point of the drive disk 34, the rotating shaft 31, the water guide frame 32, and the water stirring block 33 move upward. At this time, the funnel-shaped water guide frame 32 moves upward. The frame 32 and the overall "V"-shaped water stirring block 33 move upward to scoop up the water in the heat collection cylinder 2, causing the water to flow from top to bottom. The rotating shaft 31 slides towards the lowest point of the drive disc 34, causing the rotating shaft 31, the water guiding frame 32, and the water stirring block 33 to move downward due to their own weight and the weight of the water. This causes the rotating shaft 31, the water guiding frame 32, and the water stirring block 33 to rotate and reciprocate, thus allowing the water in the heat collection cylinder 2 to flow fully and absorb the heat from the exhaust pipe 1. The temperature sensor measures the water in the heat collection cylinder 2. When the water in the heat collection cylinder 2 reaches a certain high temperature, the heated water in the heat collection cylinder 2 is discharged to the corresponding location through the water outlet pipe for utilization. After the heat of the flue gas in the exhaust pipe 1 is absorbed, it is guided to the flue gas treatment box for purification treatment, and then discharged after meeting the standards.

[0028] like Figure 2 As shown, the drive assembly 35 includes a first gear 351 rotatably connected to the top of the heat collection cylinder 2, the surfaces of the rotating shaft 31 and the limiting block 38 are slidably connected to the inner wall of the first gear 351, the surface of the first gear 351 is meshed with a second gear 352, the top of the heat collection cylinder 2 is fixedly connected to a servo motor 353, and the output shaft of the servo motor 353 is fixedly connected to the top of the second gear 352.

[0029] The servo motor 353 is manually turned on. The output shaft of the servo motor 353 rotates, which drives the second gear 352 to rotate. The rotation of the second gear 352 drives the first gear 351 to rotate. The rotation of the first gear 351 drives the limit block 38 and the rotating shaft 31 to rotate. When the rotation of the rotating shaft 31 is not needed, the servo motor 353 is manually turned off.

[0030] like Figure 2-4 As shown, a groove 39 is provided at the lower end of the inner wall of the rotating shaft 31. A slide 310 is slidably connected to the inner wall of the groove 39. A ball bearing 312 is slidably connected to the bottom end of the slide 310. The surface of the ball bearing 312 is slidably connected to the inner bottom wall of the heat collection cylinder 2. A spring 311 is fixedly connected to the top end of the slide 310. The top end of the spring 311 is fixedly connected to the inner wall of the rotating shaft 31. A circular groove 37 is provided at the lower end of the inner wall of the heat collection cylinder 2. The surface of the slide 310 is slidably connected to the inner wall of the circular groove 37.

[0031] The rotating shaft 31 drives the slide 310 to rotate within the circular groove 37. The rotating shaft 31 reciprocates up and down on the surface of the slide 310, ensuring the stability of the rotating shaft 31 during its reciprocating motion.

[0032] like Figure 2 As shown, a ring of fixed rods 36 are fixedly connected to the surface of the flue pipe 1, and the bottom end of the fixed rods 36 is fixedly connected to the inner bottom wall of the heat collection cylinder 2.

[0033] In use, the output shaft of the servo motor 353 rotates, which drives the limiting block 38 and the rotating shaft 31 to rotate via the second gear 352 and the first gear 351. The rotation of the rotating shaft 31 drives the funnel-shaped water guide frame 32 and the V-shaped water stirring block 33 to rotate, thus stirring the water in the heat collection cylinder 2. At this time, the rotating shaft 31 moves in a ring on the drive disk 34, causing the rotating shaft 31, the water guide frame 32 and the water stirring block 33 to move up and down repeatedly. During this process, the funnel-shaped water guide frame 32 and the V-shaped water stirring block 33 scoop up the water in the heat collection cylinder 2, allowing the water to flow from top to bottom, thereby ensuring that the water in the heat collection cylinder 2 flows fully and absorbs the heat from the exhaust pipe 1.

[0034] It should be noted that the exhaust pipe 1, heat collection cylinder 2, servo motor 353, exhaust fan, temperature sensor, smelting furnace and flue gas treatment box mentioned above are all components with relatively mature existing technology. The specific models can be selected according to actual needs. At the same time, the servo motor 353, exhaust fan, temperature sensor and smelting furnace can be powered by built-in power supply or mains power. The specific power supply method is selected according to the situation and will not be elaborated here.

[0035] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A smelting furnace for continuous fuming of low-grade tin material, characterized in that, Include: Heat collecting cylinder (2), the inner wall of the heat collecting cylinder (2) is provided with a smoke exhaust pipe (1); Driving mechanism (3), the driving mechanism (3) includes driving assembly (35), the surface of the driving assembly (35) is provided with rotating shaft (31), the surface of the rotating shaft (31) is fixedly connected with several water guide frames (32) and water stirring blocks (33), the surface upper end of the rotating shaft (31) is fixedly connected with two limit blocks (38), the top of the heat collecting cylinder (2) is fixedly connected with driving disc (34), the surface upper end of the rotating shaft (31) is slidably connected to the end of driving disc (34).

2. A smelting furnace for continuous fuming of low-grade tin material according to claim 1, characterized in that: The driving assembly (35) includes a first gear (351) rotatably connected to the top of the heat collecting cylinder (2), the surface of the rotating shaft (31) and the limit block (38) are slidably connected to the inner wall of the first gear (351), the surface of the first gear (351) is meshedly connected with a second gear (352), the top of the heat collecting cylinder (2) is fixedly connected with a servo motor (353), the output shaft of the servo motor (353) is fixedly connected to the top of the second gear (352).

3. A smelting furnace for continuous fuming of low-grade tin material according to claim 1, characterized in that: The water guide frame (32) is funnel-shaped as a whole, and the water stirring block (33) is "V"-shaped as a whole.

4. A smelting furnace for continuous fuming of low-grade tin material according to claim 1, characterized in that: The bottom of the water stirring block (33) forms an angle with the horizontal plane, and the bottom end of the driving disc (34) forms an angle with the horizontal plane.

5. A smelting furnace for continuous fuming of low-grade tin materials according to claim 1, characterized in that: The inner wall lower end of the rotating shaft (31) is provided with a sliding groove (39), the inner wall of the sliding groove (39) is slidably connected with a sliding frame (310), the bottom end of the sliding frame (310) is rollingly connected with a ball (312), the surface of the ball (312) is rollingly connected to the inner bottom wall of the heat collecting cylinder (2).

6. A smelting furnace for continuous fuming of low-grade tin material according to claim 5, characterized in that: The top of the sliding frame (310) is fixedly connected with a spring (311), and the top of the spring (311) is fixedly connected to the inner wall of the rotating shaft (31).

7. A smelting furnace for continuous fuming of low-grade tin material according to claim 5, characterized in that: The inner wall lower end of the heat collecting cylinder (2) is provided with a circular groove (37), and the surface of the sliding frame (310) is slidably connected to the inner wall of the circular groove (37).

8. A smelting furnace for continuous fuming of low-grade tin material according to claim 1, characterized in that: The surface of the smoke exhaust pipe (1) is fixedly connected with a plurality of fixed rods (36) distributed in a ring shape, and the bottom end of the fixed rod (36) is fixedly connected to the inner bottom wall of the heat collecting cylinder (2).

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