Side-blown furnace for refining slag pyrometallurgy

Abstract

The utility model relates to the field of refining slag pyrometallurgy equipment, and discloses a side-blown furnace for refining slag pyrometallurgy, which comprises a furnace body, the inner side of the furnace body is fixedly connected with a broken lump anti-blocking mechanism, the outer side of the furnace body is fixedly connected with a smoke waste heat circulating purification mechanism, the broken lump anti-blocking mechanism comprises a side-blown tuyere pipe, and the side-blown tuyere pipe is fixedly connected with the side-blown tuyere pipe. The inner side wall of the furnace body is in sliding connection with a pipe opening tumor breaking assembly, and the inner side of the side blowing tuyere pipe is rotationally connected with a pipe wall tumor breaking assembly. According to the utility model, the back-and-forth smashing anti-blocking mechanism is used for smashing and cleaning nodules at the pipe orifice and on the inner wall of the side-blowing tuyere pipe, so that the normal ventilation of the side-blowing tuyere pipe is ensured, the reaction gas is uniformly distributed, the effect of smooth smelting reaction is ensured, and the smelting waste gas is sequentially filtered, sprayed and purified, and the waste heat is recycled to preheat the reaction gas; waste gas purification and waste heat utilization are achieved, pollution generated by waste gas is effectively reduced, and the energy utilization rate is remarkably increased.

Description

Technical Field

[0001] This utility model relates to the field of pyrometallurgical equipment for refining slag, and in particular to a side-blown furnace for pyrometallurgical equipment for refining slag. Background Technology

[0002] A side-blown furnace is a widely used smelting equipment in the metallurgical field. It has a special structure that allows specific gases to be blown in from the side during operation, enabling efficient processing of materials inside the furnace. In the pyrometallurgical refining of slag, the side-blown furnace plays a crucial role. It promotes the full reaction between the refining slag and the metal under high-temperature conditions, effectively removing impurities from the raw metal materials, much like a sieve filtering out impurities. Simultaneously, it allows for precise adjustment of the metal composition, ultimately yielding purer metal products that meet diverse requirements. It is a core piece of equipment in the pyrometallurgical refining process for ensuring metal quality.

[0003] The side-blown furnace for pyrometallurgical refining of slag is a key piece of equipment in the metallurgical industry. Its structure includes the furnace body and side-blown tuyeres. The furnace body provides space for smelting, while the side-blown tuyeres are used to introduce reactant gases. During operation, oxygen-enriched air or other specific gases are blown in through the side-blown tuyeres, causing a vigorous reaction between the refining slag and the metal materials inside the furnace under high-temperature conditions. This effectively removes impurities and adjusts the metal composition, thereby producing high-quality metals and playing a crucial role in pyrometallurgical refining of slag.

[0004] A search revealed an energy-saving oxygen-enriched side-blown furnace with publication number CN217979877U. Its features include: a furnace body, a gas collecting hood installed on top of the furnace body, and a gas supply assembly disposed outside the furnace body. It also includes a sealing sleeve fitted outside the furnace body and a flue gas pipe connecting the gas collecting hood and the sealing sleeve. The cavity between the inner wall of the sealing sleeve and the outer wall of the furnace body forms a heating cavity. The end of the flue gas pipe furthest from the gas collecting hood is connected to the bottom of the sealing sleeve, and the flue gas pipe communicates with the heating cavity. The gas supply assembly includes a gas supply pipe and a blower connected to one end of the gas supply pipe. The gas supply pipe vertically penetrates the heating cavity, and its lower end communicates with the inner cavity of the furnace body. This energy-saving oxygen-enriched side-blown furnace fully utilizes the waste heat of flue gas, saving energy, and the incoming air can be significantly heated to a higher temperature, reducing the generation of toxic and harmful gases.

[0005] The aforementioned patent mentions that "multiple air-blowing pipes are connected to the side wall of the distribution box, and all of the multiple air-blowing pipes are connected to the inner cavity of the distribution box, with the end of the air-blowing pipe away from the distribution box connected to the inner cavity of the furnace body." However, this technical solution frequently results in nodule formation at the opening and inner wall of the side-blowing tuyeres during pyrometallurgical refining of slag. On the one hand, material impurities volatilize and high-melting-point substances are generated by chemical reactions within the furnace; on the other hand, uneven airflow causes particle deposition, and temperature differences lead to changes in the phase state of matter, all of which contribute to the formation of nodules. This results in tuyer blockage and uneven distribution of reactant gases, severely affecting smelting efficiency and quality. Therefore, a side-blowing furnace for pyrometallurgical refining of slag is proposed to solve the above problems. Summary of the Invention

[0006] The purpose of this invention is to address the shortcomings of existing technologies by providing a side-blown furnace for pyrometallurgical refining of slag, aiming to improve the problem of easy nodule formation on the inlet and inner wall of the side-blown tuyeres, which leads to tuyer blockage.

[0007] To achieve the above objectives, this utility model provides the following technical solution:

[0008] A side-blown furnace for pyrometallurgical refining of slag includes a furnace body, wherein a lump-breaking and anti-blocking mechanism is fixedly connected to the inner side of the furnace body, and a flue gas and waste heat circulation and purification mechanism is fixedly connected to the outer side of the furnace body.

[0009] The anti-clogging mechanism for the broken tube includes a side-blowing air inlet pipe, a tube inlet broken tube assembly is slidably connected to the inner wall of the furnace body, and a tube wall broken tube assembly is rotatably connected to the inner side of the side-blowing air inlet pipe.

[0010] The tube opening fragmentation assembly includes a guide groove. One end of the side air outlet pipe is fixedly connected to the inner side of the furnace body. The outer side of the guide groove is fixedly connected to the inner wall of the furnace body. A fragmentation shovel is slidably connected to the inner side of the side air outlet pipe. The outer side of the fragmentation shovel is slidably connected to the outer side of the opening of the side air outlet pipe. A fragmentation sliding column is fixedly connected to the top of the fragmentation shovel.

[0011] As a further description of the above technical solution:

[0012] The flue gas waste heat circulation purification mechanism includes a flue pipe, the bottom of which is fixedly connected to the top of the furnace body. Flue gas filter boxes are fixedly connected to the outer sides of both ends of the flue pipe near the pipe opening. A spray heat exchange box is fixedly connected to the middle section of the flue pipe. A heat circulation pipe is fixedly connected to the outer side of the spray heat exchange box. The outer side of the heat circulation pipe is sleeved on the outer side of the side air outlet pipe. A water pump is fixedly connected to the inner side of the spray heat exchange box. The other end of the heat circulation pipe is fixedly connected to the inner side of the water pump in the spray heat exchange box.

[0013] As a further description of the above technical solution:

[0014] A feed pipe is fixedly connected to the top of the furnace body, a feed valve is fixedly connected to the outside of the feed pipe, and an observation window is fixedly connected to the outside of the furnace body.

[0015] As a further description of the above technical solution:

[0016] A guide plate is fixedly connected to the bottom inner side of the furnace body, a discharge pipe is fixedly connected to the bottom of the furnace body, and a discharge valve is fixedly connected to the outside of the discharge pipe.

[0017] As a further description of the above technical solution:

[0018] The tube wall fragmentation assembly includes an air guide fan, the outer side of which is fixedly connected to the inner side of the side air outlet tube. A cleaning shaft is fixedly connected to the outer side of the rotating shaft of the air guide fan, and a cleaning scraper is fixedly connected to the outer side of the cleaning shaft. The outer side of the cleaning scraper is rotatably connected to the inner side of the side air outlet tube.

[0019] As a further description of the above technical solution:

[0020] A lump-crushing box is fixedly connected to the top of the furnace body. A drive motor is fixedly connected to the outside of the lump-crushing box. A rotating lever is fixedly connected to the outside of the output end of the drive motor. A lump-crushing connecting rod is rotatably connected to the outside of the output end of the drive motor. A fixed block is fixedly connected to the middle section of the outside of the lump-crushing connecting rod. The outside of the rotating lever is in contact with the fixed block.

[0021] As a further description of the above technical solution:

[0022] The end of the first fragmentation link away from the output end of the drive motor is rotatably connected to the second fragmentation link. The inner side of one end of the second fragmentation link is rotatably connected to the outer side of one end of the fragmentation sliding column. The bottom inner side of the fragmentation box is fixedly connected to a guide box. The outer side of the fragmentation sliding column is slidably connected to the inner side of the guide box.

[0023] As a further description of the above technical solution:

[0024] The guide box has a groove on its inner side, and a fragmentation spring is sleeved on the outer side of the fragmentation sliding column. A limit block is fixedly connected to the outer side of the fragmentation sliding column. The outer side of the limit block is slidably connected to the inner side of the groove of the guide box. One end of the fragmentation spring is fixedly connected to the inner side of the groove of the guide box, and the other end of the fragmentation spring is fixedly connected to the outer side of the limit block.

[0025] The beneficial effects of this utility model are as follows:

[0026] (1) In this utility model, the anti-blocking mechanism for crushing nodules uses a drive motor to rotate the lever, the first crushing link, the fixed lever, the second crushing link, and other transmission structures to drive the crushing sliding column and the crushing shovel to perform reciprocating hammering motion, and the air guide fan to drive the cleaning shaft and the cleaning scraper to perform rotating cleaning work, thereby achieving the effect of removing nodules from the side blowing air outlet and the inner wall, preventing nodules from blocking the air outlet, ensuring normal airflow in the side blowing air outlet, making the reaction gas evenly distributed, and ensuring the smooth progress of the smelting reaction.

[0027] (2) In this utility model, the smelting dust and waste gas generated are discharged through the exhaust pipe and first enter the dust filter box. The filter screen and filter element intercept larger dust particles to complete the preliminary filtration. Then, it enters the spray heat exchange box, where the spray water mist adsorbs fine dust and harmful substances. The heat is transferred to the medium in the heat circulation pipe to realize waste heat recovery and preheating of the reaction gas. Finally, the purified waste gas is discharged, thereby realizing the purification treatment of smelting waste gas, waste heat recovery and utilization, reducing environmental pollution and improving energy utilization efficiency, and improving the effect of preheating the reaction gas in the side blowing port pipe.

[0028] In summary, this invention has advantages such as high efficiency in fragmentation, good waste gas treatment and heat recovery. Attached Figure Description

[0029] Figure 1 This is a three-dimensional schematic diagram of a side-blown furnace for pyrometallurgical refining of slag proposed in this utility model.

[0030] Figure 2 This is a schematic diagram of the material guide plate of a side-blown furnace for pyrometallurgical refining of slag proposed in this utility model.

[0031] Figure 3 This is a schematic diagram of the drive motor for a side-blown furnace used in pyrometallurgical refining of slag, as proposed in this utility model.

[0032] Figure 4 This is a schematic diagram of the rotating lever of a side-blown furnace for pyrometallurgical refining of slag proposed in this utility model. Detailed Implementation

[0033] The technical solutions of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0034] In the description of this utility model, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," and "counterclockwise," etc., indicating orientation or positional relationships based on the orientation or positional relationships shown in the accompanying drawings, are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the equipment or component referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, "multiple" means two or more, unless otherwise explicitly specified.

[0035] Example 1

[0036] Reference Figure 1 , Figure 2 and Figure 4 An embodiment of this utility model is provided: a side-blown furnace for pyrometallurgical smelting of refining slag, including a furnace body 1. The internal space of the furnace body 1 is used to accommodate refining slag and carry out smelting reactions to ensure that the reaction gases can be evenly distributed and the refining slag can be fully reacted. A lump-breaking and anti-blocking mechanism is fixedly connected to the inner side of the furnace body 1, and a flue gas waste heat circulation and purification mechanism is fixedly connected to the outer side of the furnace body 1.

[0037] The anti-clogging mechanism for slag breakage includes a side-blowing tuyere pipe 2, which is a key component for blowing reaction gas into the furnace, so that the reaction gas can be blown into the furnace evenly and efficiently, and fully contact the refining slag to promote the smelting reaction. The inner wall of the furnace body 1 is slidably connected to the slag breakage assembly, and the inner side of the side-blowing tuyere pipe 2 is rotatably connected to the slag wall slag breakage assembly.

[0038] The tube opening nodule crushing assembly includes a guide groove 22, which guides the sliding of the nodule crushing shovel 21. One end of the side-blowing tuyere pipe 2 is fixedly connected to the inner side of the furnace body 1, and the outer side of the guide groove 22 is fixedly connected to the inner wall of the furnace body 1. The nodule crushing shovel 21 is slidably connected to the inner side of the side-blowing tuyere pipe 2. The nodule crushing shovel 21 is a key component for removing nodules at the opening of the side-blowing tuyere pipe 2. It can effectively crush and scrape off the nodules at the opening, preventing the nodules from clogging the opening of the side-blowing tuyere pipe 2 and thus affecting the smelting efficiency and product yield. The outer side of the nodule crushing shovel 21 is slidably connected to the outer side of the opening of the side-blowing tuyere pipe 2. The top of the nodule crushing shovel 21 is fixedly connected to a nodule crushing sliding column 17, which slides in the guide box 18 and drives the nodule crushing shovel 21 to perform the nodule scraping operation through up and down movement.

[0039] The flue gas waste heat circulation purification mechanism includes a flue pipe 23, which is used to guide and discharge the flue gas and exhaust gas generated during the smelting process. It has good airtightness and strength. The bottom of the flue pipe 23 is fixedly connected to the top of the furnace body 1. Flue gas filter boxes 24 are fixedly connected to the outer sides of both ends of the flue pipe 23 near the pipe opening. The flue gas filter boxes 24 are filled with filter screens, filter elements, etc., which can perform preliminary filtration of the discharged flue gas, removing larger dust particles and impurities, reducing the burden on subsequent purification equipment. A spray heat exchange box 25 is fixedly connected to the middle section of the flue pipe 23. The spray heat exchange box 25 is equipped with a spray device and a heat exchange device. After the exhaust gas enters the spray heat exchange box 25, it first interacts with the spray device. The sprayed water mist comes into contact with the dust and harmful substances, which are then adsorbed by the water mist and discharged through the drainage system. At the same time, the heat in the exhaust gas is transferred to the medium in the heat circulation pipe 26 through the heat exchange device to realize waste heat recovery and further preheat the fuel and gas in the side blowing port pipe 2. The heat circulation pipe 26 is fixedly connected to the outside of the spray heat exchange box 25 to transfer the waste heat recovered in the spray heat exchange box 25 to the side blowing port pipe 2 to preheat the reaction gas and improve energy utilization efficiency. The outside of the heat circulation pipe 26 is sleeved on the outside of the side blowing port pipe 2. A water pump is fixedly connected to the inside of the spray heat exchange box 25, and the other end of the heat circulation pipe 26 is fixedly connected to the inside of the water pump in the spray heat exchange box 25.

[0040] Example 2

[0041] Reference Figures 1 to 3 A feed pipe 3 is fixedly connected to the top of the furnace body 1. The feed pipe 3 is used to transport refining slag raw materials into the furnace. A feed valve 4 is fixedly connected to the outside of the feed pipe 3. The feed valve 4 is used to control the feeding speed and quantity, and can be precisely adjusted according to production needs. An observation window 7 is fixedly connected to the outside of the furnace body 1. The observation window 7 allows operators to observe the smelting situation inside the furnace, such as the state of the refining slag and the reaction progress, so as to adjust the production parameters in a timely manner.

[0042] A guide plate 27 is fixedly connected to the bottom inner side of the furnace body 1. The guide plate 27 can guide the refining slag to flow to the discharge pipe 5, which facilitates discharge and improves production efficiency. The discharge pipe 5 is fixedly connected to the bottom of the furnace body 1, and a discharge valve 6 is fixedly connected to the outside of the discharge pipe 5.

[0043] The pipe wall duct fragmentation assembly includes an air guide fan 8. The rotation of the air guide fan 8 allows the fuel gas and reaction gas to fully contact the side air outlet pipe 2, improving the efficiency of intake preheating, improving the uniformity of gas distribution, and driving the operation of subsequent cleaning components. The outer side of the air guide fan 8 is fixedly connected to the inner side of the side air outlet pipe 2. A cleaning shaft 9 is fixedly connected to the outer side of the rotating shaft of the air guide fan 8. The cleaning shaft 9 rotates with the rotation of the air guide fan 8. A cleaning scraper 10 is fixedly connected to the outer side of the cleaning shaft 9. The cleaning scraper 10 can effectively scrape off the duct fragments and impurities on the pipe wall, preventing the duct fragments and impurities from clogging the side air outlet pipe 2. The outer side of the cleaning scraper 10 is rotatably connected to the inner side of the side air outlet pipe 2.

[0044] Example 3

[0045] Reference Figure 1 and Figure 4 A lump-breaking box 11 is fixedly connected to the top of the furnace body 1 to house components such as the drive motor 12 and the rotating lever 13, protecting these components from the influence of the external environment. The drive motor 12 is fixedly connected to the outside of the lump-breaking box 11. The drive motor 12 provides power to drive the rotating lever 13 to rotate, thereby realizing the removal of lumps at the opening of the side blowing pipe 2. The rotating lever 13 is fixedly connected to the outside of the output end of the drive motor 12. The rotating lever 13 triggers a series of mechanical actions through interaction with the fixed lever 15, realizing the cleaning of lumps at the opening of the side blowing pipe 2, ensuring normal ventilation of the side blowing pipe 2 and smooth smelting. A lump-breaking connecting rod 14 is rotatably connected to the outside of the output end of the drive motor 12. The lump-breaking connecting rod 14 is used for force transmission and conversion, and coordinates the lump-breaking action. A fixed lever 15 is fixedly connected to the middle section of the outside of the lump-breaking connecting rod 14. The fixed lever 15 is used to transmit power. The outside of the rotating lever 13 is in contact with the fixed lever 15.

[0046] One end of the first crushing link 14, away from the output end of the drive motor 12, is rotatably connected to the second crushing link 16. The second crushing link 16 is used for force transmission and conversion, and coordinates the crushing action. The inner side of one end of the second crushing link 16 is rotatably connected to the outer side of one end of the crushing sliding column 17. The bottom inner side of the crushing box 11 is fixedly connected to the guide box 18. The guide box 18 provides a precise sliding track for the crushing sliding column 17, ensuring that the crushing sliding column 17 can only move in a straight line along the groove opened on the inner side of the guide box 18, so that the movement direction of the crushing shovel 21 remains stable, thereby accurately crushing the side blowing pipe 2. The outer side of the crushing sliding column 17 is slidably connected to the inner side of the guide box 18.

[0047] A groove is provided on the inner side of the guide box 18, and a crushing spring 20 is sleeved on the outer side of the crushing sliding column 17. The crushing spring 20 uses its own elastic potential energy to provide reset power for the crushing sliding column 17 and the crushing shovel 21 when the crushing mechanism is working, and also plays a buffering role in the crushing process, protecting the equipment and ensuring the smooth and continuous crushing action. A limit block 19 is fixedly connected to the outer side of the crushing sliding column 17. Through the groove inside the guide box 18 and the cooperation with the upper limit block 19 of the crushing sliding column 17, the movement range of the crushing sliding column 17 is limited to prevent it from moving excessively and damaging the equipment or affecting the crushing effect, and to ensure that the crushing mechanism works within a safe and effective stroke. The outer side of the limit block 19 is slidably connected to the inner side of the groove of the guide box 18, one end of the crushing spring 20 is fixedly connected to the inner side of the groove of the guide box 18, and the other end of the crushing spring 20 is fixedly connected to the outer side of the limit block 19.

[0048] Work steps

[0049] Step 1: When the side-blown furnace for pyrometallurgical refining of slag is in operation, the output end of the drive motor 12 drives the rotating lever 13 to rotate. When the rotating lever 13 rotates, it contacts and drives the fixed lever 15 outside the first fragmentation connecting rod 14 to rotate, which in turn causes the first fragmentation connecting rod 14 to drive the second fragmentation connecting rod 16 to rotate, causing the fragmentation sliding column 17 to move upward and compress the fragmentation spring 20. When the fixed lever 15 rotates to the highest point and disengages from the rotating lever 13 to rotate downward, the first fragmentation connecting rod 14 drives the second fragmentation connecting rod 16 to rotate downward, causing the fragmentation sliding column 17 to slide downward. At this time, the reset fragmentation spring 20 assists the fragmentation sliding column 17 to strike downward quickly, so that the fragmentation scraper 21 at the bottom of the fragmentation sliding column 17 can quickly and violently scrape off the nodules at the opening of the side-blown tuyer pipe 2. At the same time, the air guide fan 8 rotates to distribute the reaction gas evenly and drives the cleaning shaft 9 and the cleaning scraper 10 to clean the inner wall of the side-blown tuyer pipe 2.

[0050] Step 2: In actual production, the refining slag enters the furnace body 1 in an orderly and stable manner through the feed pipe 3 under the precise control of the feed valve 4. During the smelting process, a large amount of waste gas is generated. This waste gas is transported out through the exhaust pipe 23. The waste gas first arrives at the dust filter box 24, where larger dust particles are intercepted by filter screens, filter elements and other filter devices, completing the preliminary filtration. Then it enters the spray heat exchange box 25, where the spray device sprays out fine water mist, which strongly adsorbs fine dust and various harmful substances in the waste gas. At the same time, the heat carried by the waste gas is transferred to the medium in the heat circulation pipe 26 through the heat exchange device. The heat circulation pipe 26 surrounds the side blowing port pipe 2, thereby preheating the reaction gas in the pipe. After a series of purification treatments, the waste gas that meets the emission standards is discharged. The smelted refining slag is guided by the inclined angle of the guide plate 27 and smoothly discharged from the furnace body 1 through the discharge pipe 5 under the control of the discharge rhythm by the discharge valve 6.

[0051] The above description is only a preferred embodiment of this utility model and is not intended to limit this utility model. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A side-blown furnace for pyrometallurgical refining of slag, comprising a furnace body (1), characterized in that: The inner side of the furnace body (1) is fixedly connected to a dust-prevention and anti-blocking mechanism, and the outer side of the furnace body (1) is fixedly connected to a flue gas waste heat circulation and purification mechanism. The anti-blocking mechanism for the broken tube includes a side blowing port pipe (2), and the inner wall of the furnace body (1) is slidably connected to a tube opening broken tube assembly, and the inner side of the side blowing port pipe (2) is rotatably connected to a tube wall broken tube assembly. The tube opening crushing assembly includes a guide groove (22), one end of the side blowing air pipe (2) is fixedly connected to the inner side of the furnace body (1), the outer side of the guide groove (22) is fixedly connected to the inner wall of the furnace body (1), a crushing shovel (21) is slidably connected to the inner side of the side blowing air pipe (2), the outer side of the crushing shovel (21) is slidably connected to the outer side of the opening of the side blowing air pipe (2), and a crushing sliding column (17) is fixedly connected to the top of the crushing shovel (21).

2. The side-blown furnace for pyrometallurgical refining of slag according to claim 1, characterized in that: The waste heat circulation and purification mechanism for flue gas includes a flue pipe (23), the bottom of which is fixedly connected to the top of the furnace body (1). Flue gas filter boxes (24) are fixedly connected to the outer sides of both ends of the flue pipe (23) near the pipe opening. A spray heat exchange box (25) is fixedly connected to the middle section of the flue pipe (23). A heat circulation pipe (26) is fixedly connected to the outer side of the spray heat exchange box (25). The outer side of the heat circulation pipe (26) is sleeved on the outer side of the side blowing port pipe (2). A water pump is fixedly connected to the inner side of the spray heat exchange box (25). The other end of the heat circulation pipe (26) is fixedly connected to the inner side of the water pump of the spray heat exchange box (25).

3. A side-blown furnace for pyrometallurgical refining of slag according to claim 1, characterized in that: The top of the furnace body (1) is fixedly connected to a feed pipe (3), the outside of the feed pipe (3) is fixedly connected to a feed valve (4), and the outside of the furnace body (1) is fixedly connected to an observation window (7).

4. A side-blown furnace for pyrometallurgical refining of slag according to claim 1, characterized in that: A guide plate (27) is fixedly connected to the bottom inner side of the furnace body (1), a discharge pipe (5) is fixedly connected to the bottom of the furnace body (1), and a discharge valve (6) is fixedly connected to the outside of the discharge pipe (5).

5. A side-blown furnace for pyrometallurgical refining of slag according to claim 1, characterized in that: The tube wall fragmentation assembly includes an air guide fan (8), the outer side of which is fixedly connected to the inner side of the side air outlet pipe (2). A cleaning shaft (9) is fixedly connected to the outer side of the rotating shaft of the air guide fan (8), and a cleaning scraper (10) is fixedly connected to the outer side of the cleaning shaft (9). The outer side of the cleaning scraper (10) is rotatably connected to the inner side of the side air outlet pipe (2).

6. A side-blown furnace for pyrometallurgical refining of slag according to claim 1, characterized in that: A lump-breaking box (11) is fixedly connected to the top of the furnace body (1). A drive motor (12) is fixedly connected to the outside of the lump-breaking box (11). A rotating lever (13) is fixedly connected to the outside of the output end of the drive motor (12). A lump-breaking connecting rod (14) is rotatably connected to the outside of the output end of the drive motor (12). A fixed lever (15) is fixedly connected to the middle section of the outside of the lump-breaking connecting rod (14). The outside of the rotating lever (13) is in contact with the fixed lever (15).

7. A side-blown furnace for pyrometallurgical refining of slag according to claim 6, characterized in that: One end of the first fragmentation link (14) away from the output end of the drive motor (12) is rotatably connected to the second fragmentation link (16). The inner side of one end of the second fragmentation link (16) is rotatably connected to the outer side of one end of the fragmentation sliding column (17). The bottom inner side of the fragmentation box (11) is fixedly connected to the guide box (18). The outer side of the fragmentation sliding column (17) is slidably connected to the inner side of the guide box (18).

8. A side-blown furnace for pyrometallurgical refining of slag according to claim 7, characterized in that: The guide box (18) has a groove on its inner side. The lump-breaking sliding column (17) is fitted with a lump-breaking spring (20) on its outer side. A limit block (19) is fixedly connected to the outer side of the lump-breaking sliding column (17). The outer side of the limit block (19) is slidably connected to the inner side of the groove of the guide box (18). One end of the lump-breaking spring (20) is fixedly connected to the inner side of the groove of the guide box (18), and the other end of the lump-breaking spring (20) is fixedly connected to the outer side of the limit block (19).

Images