Oxygen-enriched side-blown furnace for preventing molten waste residues from being cooled and solidified

Abstract

The utility model relates to an oxygen-enriched side-blown furnace for preventing molten waste slag from cooling and solidifying, which belongs to the technical field of oxygen-enriched side-blown furnaces and comprises a hearth, a runner is arranged at the top of the hearth, a furnace body is fixedly mounted at the top of the hearth, and an overflow port is arranged at the top of one side of the furnace body of the hearth. The top of the hearth is fixedly provided with a siphon discharging cover, the siphon discharging cover is located above the overflow opening, the top of the siphon discharging cover is fixedly provided with an anti-solidification box, and the anti-solidification box is provided with an anti-solidification assembly. According to the oxygen-enriched side-blown furnace capable of preventing the molten waste residues from being cooled and solidified, the anti-solidification assembly is arranged at the top of the anti-solidification box, the molten waste residues are prevented from being cooled and solidified, and the problems that when the molten residues flow out of the oxygen-enriched side-blown furnace, the temperature is reduced, so that the molten residues at a siphon opening are likely to be condensed, and the molten residues are difficult to pass through the siphon opening are solved; the problems that the oxygen-enriched side-blown converter needs to be overhauled, and meanwhile, condensation of a siphon port may cause certain potential safety hazards are solved.

Description

Technical Field

[0001] The utility model relates to the technical field of oxygen-enriched side-blowing furnaces, in particular to an oxygen-enriched side-blowing furnace capable of preventing molten waste slag from cooling and solidifying. Background Art

[0002] Based on the raw materials and leaching methods, hydrometallurgical zinc smelting processes are categorized into conventional zinc roasted sand leaching, hot acid leaching of zinc roasted sand, and direct oxygen pressure leaching of zinc concentrate. Currently, conventional zinc roasted sand leaching and hot acid leaching are the most common hydrometallurgical zinc smelting processes in my country. Regardless of the leaching process, various types of leaching residues are produced, including conventional leaching residue, leaching residue from the two-stage intermediate leaching process, leaching residue from the intermediate leaching-low leaching process, and hot acid leaching residue, including iron alum residue from iron removal and lead-silver residue from hot acid leaching. Producing 1 ton of electrolytic zinc generates 1.05 tons of leaching residue, a significant amount of slag.

[0003] The oxygen-enriched side-blown furnace is an advanced piece of equipment in the smelting industry, primarily used in the metal smelting process. It demonstrates significant advantages in the smelting of secondary lead and other metals. It primarily consists of a furnace body, a copper water jacket, and nozzles. The copper jacket protects the furnace body and rapidly conducts heat, while the nozzles inject high-concentration oxygen-enriched gas to promote chemical reactions. Materials, reducing agents, and fuel are fed into the furnace through a top feed port. Oxygen-enriched air is then pumped into the furnace through tuyeres in the copper water jacket on the side walls, causing the slag layer to be vigorously agitated, forming a jet layer. This process completes the smelting and slagging reactions.

[0004] However, in a common oxygen-enriched side-blown furnace, the temperature of the slag will decrease when it flows out of the oxygen-enriched side-blown furnace, so the slag at the siphon port may condense. When the slag at the siphon port condenses to a certain extent, it will be difficult for the slag to pass through the siphon port, and the oxygen-enriched side-blown furnace needs to be repaired. At the same time, the condensation at the siphon port may also bring certain safety hazards. In view of this, the present application proposes an oxygen-enriched side-blown furnace that prevents the molten waste slag from cooling and solidifying. Utility Model Content

[0005] In response to the deficiencies in the prior art, the utility model provides an oxygen-enriched side-blowing furnace that prevents molten waste slag from cooling and solidifying. It has the advantages of preventing slag from condensing at the siphon port, etc., and solves the problem of common oxygen-enriched side-blowing furnaces. When the slag flows out of the oxygen-enriched side-blowing furnace, the temperature will drop, so the slag at the siphon port may condense. When the slag at the siphon port condenses to a certain extent, it will be difficult for the slag to pass through the siphon port, and the oxygen-enriched side-blowing furnace needs to be repaired. At the same time, condensation at the siphon port may also bring certain safety hazards.

[0006] To achieve the above-mentioned object, the utility model provides the following technical solution: an oxygen-enriched side-blown furnace for preventing molten waste slag from cooling and solidifying, comprising a furnace cylinder, a flow channel is provided on the top of the furnace cylinder, a furnace body is fixedly installed on the top of the furnace cylinder, an overflow port is provided on the top of the furnace cylinder on one side of the furnace body, a siphon discharge cover is fixedly installed on the top of the furnace cylinder, the siphon discharge cover is located above the overflow port, an anti-solidification box is fixedly installed on the top of the siphon discharge cover, and an anti-solidification component is provided on the anti-solidification box;

[0007] The anti-coagulation component includes an electrode heating rod fixedly mounted on the top of the anti-coagulation box, a terminal is fixedly mounted on the top of the electrode heating rod, and the bottom end of the electrode heating rod extends to the interior of the siphon discharge cover.

[0008] Furthermore, the furnace body includes a copper water jacket fixedly installed on the top of the furnace, a second copper water jacket fixedly installed on the top of the first copper water jacket, a third copper water jacket fixedly installed on the top of the second copper water jacket, and a steel jacket top fixedly installed on the top of the third copper water jacket.

[0009] Furthermore, a primary air nozzle is fixedly installed on the inner wall of the single-layer copper water jacket, and a secondary air nozzle is fixedly installed on the inner wall of the three-layer copper water jacket.

[0010] Furthermore, a smoke outlet is provided on the top of the molten steel jacket, and a feeding pipe is fixedly installed on the top of the molten steel jacket.

[0011] Furthermore, a bottom plate is fixedly installed on the bottom of the furnace, a support frame is fixedly installed on the top of the bottom plate, and a mounting plate is fixedly installed on one side of the support frame.

[0012] Furthermore, a primary air duct is fixedly installed on the top of the mounting plate, and the output end of the primary air duct is fixedly connected to the input end of the primary air nozzle. A secondary air duct is fixedly installed on the top of the mounting plate, and the output end of the secondary air duct is fixedly connected to the input end of the secondary air nozzle.

[0013] Furthermore, a support rod is fixedly installed on the inner side of the support frame, and one end of the support rod is fixedly connected to the outer side of the furnace body.

[0014] Compared with the prior art, the utility model provides an oxygen-enriched side-blown furnace that prevents molten waste slag from cooling and solidifying, and has the following beneficial effects:

[0015] The oxygen-enriched side-blowing furnace for preventing the molten waste slag from cooling and solidifying has an anti-solidification component arranged on the top of the anti-solidification box. The electrode heating rods in the anti-solidification component heat and insulate the molten waste slag at the overflow port and inside the siphon discharge cover to prevent the molten waste slag from cooling and solidifying. This solves the problem of a common oxygen-enriched side-blowing furnace in which the temperature of the slag decreases when it flows out of the oxygen-enriched side-blowing furnace, so the slag at the siphon port may solidify. When the slag at the siphon port solidifies to a certain extent, it becomes difficult for the slag to pass through the siphon port, and the oxygen-enriched side-blowing furnace needs to be repaired. At the same time, the condensation at the siphon port may also bring certain safety hazards. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic diagram of the structure of the utility model;

[0017] Figure 2 This is a side sectional view of the structure of the utility model;

[0018] Figure 3 This is a front cross-sectional view of the anti-solidification box of the utility model;

[0019] Figure 4 This is a three-dimensional schematic diagram of the anti-coagulation component of the utility model.

[0020] In the figure: 1. furnace hearth; 2. flow channel; 3. overflow port; 4. furnace body; 41. single-layer copper water jacket; 42. double-layer copper water jacket; 43. triple-layer copper water jacket; 44. molten steel jacket top; 5. siphon discharge cover; 6. anti-solidification box; 7. anti-solidification assembly; 71. electrode heating rod; 72. terminal; 8. primary air nozzle; 9. secondary air nozzle; 10. smoke outlet; 11. feeding pipe; 12. bottom plate; 13. support frame; 14. mounting plate; 15. primary air duct; 16. secondary air duct; 17. support rod. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0022] Example 1: Please refer to Figures 1 to 4 An oxygen-enriched side-blown furnace for preventing molten waste slag from cooling and solidifying comprises a furnace cylinder 1, a flow channel 2 is provided on the top of the furnace cylinder 1, a furnace body 4 is fixedly installed on the top of the furnace cylinder 1, an overflow port 3 is provided on the top of the furnace cylinder 1 on one side of the furnace body 4, a siphon discharge cover 5 is fixedly installed on the top of the furnace cylinder 1, the siphon discharge cover 5 is located above the overflow port 3, an anti-solidification box 6 is fixedly installed on the top of the siphon discharge cover 5, and an anti-solidification component 7 is provided on the anti-solidification box 6.

[0023] The anti-coagulation assembly 7 includes an electrode heating rod 71 fixedly mounted on the top of the anti-coagulation box 6. A terminal 72 is fixedly mounted on the top of the electrode heating rod 71, and the bottom of the electrode heating rod 71 extends into the interior of the siphon discharge cover 5. The electrode heating rod 71 is energized through the terminal 72, so that the electrode heating rod 71 heats and insulates the molten waste slag inside the overflow port 3 and the siphon discharge cover 5 to prevent the molten waste slag from solidifying.

[0024] At the same time, the furnace body 4 includes a copper water jacket 41 fixedly installed on the top of the furnace 1, a second copper water jacket 42 fixedly installed on the top of the first copper water jacket 41, a third copper water jacket 43 fixedly installed on the top of the second copper water jacket 42, and a steel jacket top 44 fixedly installed on the top of the third copper water jacket 43.

[0025] The inner wall of the single-layer copper water jacket 41 is fixedly mounted with a primary air nozzle 8 , and the inner wall of the three-layer copper water jacket 43 is fixedly mounted with a secondary air nozzle 9 .

[0026] Secondly, a smoke outlet 10 is opened on the top of the molten steel jacket top 44 , and a feeding pipe 11 is fixedly installed on the top of the molten steel jacket top 44 .

[0027] Embodiment 2: Based on the embodiment 1, a bottom plate 12 is fixedly installed on the bottom of the furnace 1 , a support frame 13 is fixedly installed on the top of the bottom plate 12 , and a mounting plate 14 is fixedly installed on one side of the support frame 13 .

[0028] Among them, a primary air duct 15 is fixedly installed on the top of the mounting plate 14, and the output end of the primary air duct 15 is fixedly connected to the input end of the primary air nozzle 8. A secondary air duct 16 is fixedly installed on the top of the mounting plate 14, and the output end of the secondary air duct 16 is fixedly connected to the input end of the secondary air nozzle 9.

[0029] Secondly, a support rod 17 is fixedly installed on the inner side of the support frame 13, and one end of the support rod 17 is fixedly connected to the outer side of the furnace body 4. The furnace body 4 is supported by the support frame 13 and the support rod 17, so that the furnace cylinder 1 does not bear weight.

[0030] When this embodiment is in use, raw materials are added to the furnace body 4 from the feeding pipe 11. After the raw materials become molten, they flow to the overflow port 3 through the flow channel 2. The electrode heating rod 71 is energized through the terminal 72, so that the electrode heating rod 71 heats and keeps warm the molten waste slag inside the overflow port 3 and the siphon discharge cover 5 to prevent the molten waste slag from solidifying.

[0031] The electrical components appearing in this article are all electrically connected to the main controller and the power supply. The main controller can be a conventional known device that controls a computer, etc., and the existing public power connection technology is not described in detail in this article.

[0032] It should be noted that, in this document, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply the existence of any such actual relationship or order between these entities or operations. Moreover, the terms "comprises," "comprising," or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article, or device comprising a series of elements includes not only those elements, but also other elements not explicitly listed, or elements inherent to such process, method, article, or device. In the absence of further limitations, an element defined by the phrase "comprising a ..." does not exclude the presence of other identical elements in the process, method, article, or device comprising the element.

[0033] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An oxygen-enriched side-blown furnace for preventing molten waste slag from cooling and solidifying, comprising a furnace (1), characterized in that: A flow channel (2) is provided on the top of the furnace cylinder (1), a furnace body (4) is fixedly installed on the top of the furnace cylinder (1), an overflow port (3) is provided on the top of the furnace cylinder (1) on one side of the furnace body (4), a siphon discharge cover (5) is fixedly installed on the top of the furnace cylinder (1), the siphon discharge cover (5) is located above the overflow port (3), an anti-coagulation box (6) is fixedly installed on the top of the siphon discharge cover (5), and an anti-coagulation component (7) is provided on the anti-coagulation box (6); The anti-coagulation component (7) includes an electrode heating rod (71) fixedly mounted on the top of the anti-coagulation box (6), a terminal (72) fixedly mounted on the top of the electrode heating rod (71), and a bottom end of the electrode heating rod (71) extending to the interior of the siphon discharge cover (5).

2. The oxygen-enriched side-blown furnace for preventing molten waste slag from cooling and solidifying according to claim 1, characterized in that: The furnace body (4) comprises a first layer of copper water jacket (41) fixedly mounted on the top of the furnace (1), a second layer of copper water jacket (42) fixedly mounted on the top of the first layer of copper water jacket (41), a third layer of copper water jacket (43) fixedly mounted on the top of the second layer of copper water jacket (42), and a steel jacket top (44) fixedly mounted on the top of the third layer of copper water jacket (43).

3. The oxygen-enriched side-blown furnace for preventing molten waste slag from cooling and solidifying according to claim 2, characterized in that: A primary air nozzle (8) is fixedly mounted on the inner side wall of the single-layer copper water jacket (41), and a secondary air nozzle (9) is fixedly mounted on the inner side wall of the triple-layer copper water jacket (43).

4. The oxygen-enriched side-blown furnace for preventing molten waste slag from cooling and solidifying according to claim 3, characterized in that: A smoke outlet (10) is provided on the top of the molten steel jacket top (44), and a feeding pipe (11) is fixedly installed on the top of the molten steel jacket top (44).

5. The oxygen-enriched side-blown furnace for preventing molten waste slag from cooling and solidifying according to claim 4, characterized in that: A bottom plate (12) is fixedly mounted on the bottom of the furnace (1), a support frame (13) is fixedly mounted on the top of the bottom plate (12), and a mounting plate (14) is fixedly mounted on one side of the support frame (13).

6. The oxygen-enriched side-blown furnace for preventing molten waste slag from cooling and solidifying according to claim 5, characterized in that: A primary air duct (15) is fixedly mounted on the top of the mounting plate (14), and the output end of the primary air duct (15) is fixedly connected to the input end of the primary air nozzle (8). A secondary air duct (16) is fixedly mounted on the top of the mounting plate (14), and the output end of the secondary air duct (16) is fixedly connected to the input end of the secondary air nozzle (9).

7. The oxygen-enriched side-blown furnace for preventing molten waste slag from cooling and solidifying according to claim 6, characterized in that: A support rod (17) is fixedly installed on the inner side of the support frame (13), and one end of the support rod (17) is fixedly connected to the outer side of the furnace body (4).

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