Lead smelting furnace with double-sealing lead discharging structure

Abstract

The utility model discloses a lead melting furnace with a dual-seal lead discharging structure, which relates to the technical field of lead melting and comprises a furnace body and a lead discharging component, the lead discharging component comprises a sealing rod and a lead discharging pipe, the lead discharging pipe is welded at the bottom of the furnace body, and a sealing ball plug is fixed at the liquid outlet end of the lead discharging pipe through a flange. A detachable liquid inlet die sleeve is fixed to the liquid inlet end of the lead discharging pipe, and a conical inclined face is arranged at the upper end of the liquid inlet die sleeve. The sealing rod is vertically arranged over the liquid inlet end, the upper end of the sealing rod penetrates out of the furnace body, the sealing rod is controlled to move up and down, and a sealing ball head matched with the conical inclined face is fixed to the lower end of the sealing rod. According to the lead melting furnace, on the premise that a valve is omitted, the lead discharging structure which is better in sealing performance, better in abrasion resistance and easy to replace is designed, and therefore the sealing effect of the lead discharging structure of the lead melting furnace can be effectively improved, and the service life of the lead discharging structure can be effectively prolonged; the technical problems that due to the fact that a valve of a lead placing assembly in a lead smelting furnace is prone to being damaged, the service life is short, lead liquid is prone to leaking, and safety accidents are prone to being caused are solved.

Description

Technical Field

[0001] This utility model relates to the field of lead melting technology, specifically to a lead melting furnace with a double-sealed lead discharge structure. Background Technology

[0002] A lead melting furnace is a device that can melt lead ingots to obtain molten lead. The molten lead obtained from the lead melting furnace can be used to manufacture lead-acid battery grids, cable sheathing, etc. Therefore, lead melting furnaces are widely used in the battery industry and lead extrusion industry.

[0003] Currently, there are many existing technologies involving lead melting furnaces. For example, patent document CN204787787U discloses a lead melting furnace, which includes a furnace body, a lead-discharging assembly, and a furnace hood. In practical applications, the molten lead can be discharged through the lead-discharging assembly. Careful analysis reveals that the lead-discharging assembly of this furnace uses a valve and a liquid delivery pipeline to output the molten lead. However, the melting temperature of lead ingots is as high as 327.5℃. This high temperature can easily damage the valve seals, resulting in a short valve lifespan and increasing the risk of lead leakage and potential safety accidents. Utility Model Content

[0004] To overcome the aforementioned technical problems in the prior art, this utility model provides a lead melting furnace with a double-sealed lead discharge structure. This lead melting furnace eliminates the need for valves and features a lead discharge structure that offers better sealing, wear resistance, and easy replacement. As a result, it effectively improves the sealing effect and service life of the lead discharge structure in the lead melting furnace, solving the technical problems of short service life, easy leakage of molten lead, and easy safety accidents caused by easily damaged valves in the lead discharge components of existing lead melting furnaces.

[0005] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0006] A lead melting furnace with a double-sealed lead-discharging structure includes a furnace body and a lead-discharging assembly. The lead-discharging assembly includes a sealing rod and an L-shaped lead-discharging pipe. The lead-discharging pipe is welded to the bottom of the furnace body. A sealing ball plug is fixed to the liquid outlet end of the lead-discharging pipe via a flange. A detachable liquid inlet sleeve is fixed to the liquid inlet end of the lead-discharging pipe. The wear resistance of the liquid inlet sleeve is greater than that of the lead-discharging pipe. A tapered slope is provided at the upper end of the liquid inlet sleeve. The sealing rod is vertically positioned directly above the liquid inlet end. The upper end of the sealing rod extends out of the furnace body, and a sealing ball head adapted to the tapered slope is fixed to the lower end of the sealing rod. The sealing rod can be moved up and down in a controlled manner. When the sealing rod moves downward until the sealing ball head abuts against the tapered slope, the liquid inlet end of the lead-discharging pipe is blocked. When the sealing rod moves upward until the sealing ball head disengages from the tapered slope, the liquid inlet end of the lead-discharging pipe is opened.

[0007] The upper part of the furnace body is fixed with a screw sleeve, the lower part of the furnace body is fixed with a guide sleeve, the upper part of the sealing rod is threaded into the screw sleeve, and the lower part of the sealing rod is slidably disposed in the guide sleeve.

[0008] The lead-discharging pipe includes a horizontal pipe and an adapter sleeve. The adapter sleeve is welded to the bottom surface of the furnace body. The liquid inlet mold sleeve is threadedly fixed inside the upper end of the adapter sleeve. The sealing ball plug is fixed to the outer end of the horizontal pipe through a flange. The inner end of the horizontal pipe is welded to the lower end of the adapter sleeve. The horizontal pipe and the liquid inlet mold sleeve are connected through the adapter sleeve.

[0009] The upper end face of the liquid inlet mold sleeve is evenly provided with multiple tool holes surrounding a conical inclined surface.

[0010] The upper end face of the adapter sleeve, the upper end face of the liquid inlet mold sleeve, and the bottom surface of the furnace body are all located on the same horizontal plane.

[0011] The inclination angle of the conical slope is 45 degrees.

[0012] The lead pipe is welded and fixed at a 45-degree angle to the adjacent two side walls of the furnace body or on the side wall of the furnace body.

[0013] The advantages of using this utility model are:

[0014] 1. The lead-discharging assembly of this utility model features a double-sealing structure at both ends of the lead-discharging pipe, which can seal both the inlet and outlet ends, thus effectively improving the sealing effect of the lead-discharging assembly. Furthermore, since this lead-discharging assembly eliminates valves and other components susceptible to damage from high temperatures, it not only extends the service life of the lead-discharging assembly but also effectively prevents lead leakage, thereby improving the reliability and safety of lead melting.

[0015] Furthermore, because the inlet end of the lead-discharging pipe needs to be in constant contact with the sealing ball head to open and close the pipe, it is prone to wear. Since the lead-discharging pipe is welded to the bottom of the furnace, wear at the inlet end will cause lead leakage, requiring complete disassembly and reinstallation of the entire lead-discharging assembly. This is not only time-consuming and labor-intensive but also affects the lead-melting efficiency. To address this, this invention specifically incorporates a detachable inlet mold sleeve at the inlet end of the lead-discharging pipe. Firstly, the wear resistance of the inlet mold sleeve is greater than that of the lead-discharging pipe, making it less susceptible to wear and thus extending the service life of the lead-discharging assembly. Secondly, even if the inlet mold sleeve experiences significant wear or damage, only the mold sleeve needs to be disassembled and reassembled, without requiring complete disassembly of the entire lead-discharging assembly, saving time and labor without affecting the lead-melting efficiency.

[0016] 2. This utility model, through the cooperation of the screw sleeve and the guide sleeve, not only facilitates stable and reliable control of the sealing rod's up and down movement, but also helps to improve the sealing effect of the lead pipe on the liquid inlet end of the lead pipe.

[0017] 3. This utility model uses a threaded connection to fix the liquid inlet mold sleeve inside the upper end of the adapter sleeve, which is beneficial for the disassembly and replacement of the liquid inlet mold sleeve.

[0018] 4. This utility model allows for the disassembly and replacement of the liquid inlet mold sleeve through the tool hole, making the disassembly and replacement of the liquid inlet mold sleeve simpler and more convenient.

[0019] 5. The present invention sets the inclination angle of the conical inclined surface to 45 degrees, so that it can better seal the liquid inlet end when it is matched with the sealing ball head.

[0020] 6. The lead-filling pipe in this utility model can be fixed at a 45-degree angle to the adjacent two side walls of the furnace body, or it can be fixed on the side wall of the furnace body, which is beneficial for use in different locations and makes it more practical. Attached Figure Description

[0021] Figure 1 This is a cross-sectional structural diagram of the present invention;

[0022] Figure 2 This is a cross-sectional view of the lead-holding assembly.

[0023] Figure 3 A schematic diagram of the planar structure of the liquid inlet mold sleeve installed on the lead outlet pipe;

[0024] Figure 4 A three-dimensional structural diagram of the liquid inlet mold sleeve installed on the lead outlet pipe;

[0025] Figure 5 This is a three-dimensional structural diagram of the liquid inlet mold sleeve.

[0026] The following are marked in the diagram: 1. Furnace body, 2. Lead feeding assembly, 3. Sealing rod, 4. Lead feeding pipe, 5. Flange, 6. Sealing ball plug, 7. Liquid inlet mold sleeve, 8. Conical bevel, 9. Sealing ball head, 10. Screw sleeve, 11. Guide sleeve, 12. Horizontal pipe, 13. Adapter sleeve, 14. Tool hole. Detailed Implementation

[0027] like Figure 1-2 As shown, this utility model provides a lead melting furnace with a double-sealed lead-discharging structure, including a furnace body 1 and a lead-discharging assembly 2. Wherein,

[0028] The lead discharge assembly 2 includes an L-shaped lead discharge pipe 4, which is welded to the bottom of the furnace body 1. The two ends of the lead discharge pipe 4 are an inlet and an outlet, respectively. A sealing ball plug 6 is fixed to the outlet end via a flange 5. When the sealing ball plug 6 is fixed to the outlet end, the outlet end is blocked, and the lead liquid cannot flow out. Only by removing the flange 5 and taking off the sealing ball plug 6 can the blockage at the outlet end be released. A detachable inlet mold sleeve 7 is fixed to the inlet end. The detachable connection structure of the inlet mold sleeve 7 allows for quick disassembly and replacement when it is heavily worn or damaged. The lead discharge pipe 4 can be made of Q235-A steel, and the inlet mold sleeve 7 can be made of HT200 gray cast iron, making the wear resistance of the inlet mold sleeve 7 greater than that of the lead discharge pipe 4, thereby extending the service life of the inlet mold sleeve 7. In addition, the upper end of the liquid inlet sleeve 7 is provided with a conical inclined surface 8, and the inclination angle of the conical inclined surface 8 is preferably 45 degrees, so as to facilitate the sealing of the liquid inlet end through the conical inclined surface 8.

[0029] The lead-discharging assembly 2 includes a sealing rod 3, which is vertically positioned directly above the liquid inlet end. The upper end of the sealing rod 3 extends out of the furnace body 1, and the lower end of the sealing rod 3 is fixed with a sealing ball head 9 that matches the conical inclined surface 8. When the upper end of the sealing rod 3 is subjected to a rotational control force, the sealing rod 3 can move up and down. When the sealing rod 3 moves downward until the sealing ball head 9 tightly abuts against the conical inclined surface 8, the liquid inlet end of the lead-discharging pipe 4 is blocked, and the molten lead in the furnace body 1 cannot enter the lead-discharging pipe 4. When the sealing rod 3 moves upward until the sealing ball head 9 disengages from the conical inclined surface 8, the liquid inlet end of the lead-discharging pipe 4 is opened, and the molten lead in the furnace body 1 can enter the lead-discharging pipe 4.

[0030] During the lead melting process, both the inlet and outlet ends of the lead discharge pipe 4 are sealed, forming a double-sealed structure that effectively prevents lead leakage and ensures a safer lead melting process. When a large amount of lead accumulates in the furnace body 1, the flange 5 can be loosened first, and the sealing ball plug 6 removed to release the seal at the outlet end of the lead discharge pipe 4. Then, the sealing rod 3 is raised to separate the sealing ball head 9 from the conical inclined surface 8, releasing the seal at the inlet end of the lead discharge pipe 4. At this point, the lead can flow out smoothly through the lead discharge pipe 4. In this embodiment, the lead discharge assembly 2 is entirely mechanical and has no easily damaged parts such as valves, thus effectively improving the sealing effect and service life of the lead discharge assembly 2 of the lead melting furnace.

[0031] In a specific embodiment, such as Figure 1-2As shown, a threaded sleeve 10 is fixed to the upper part of the furnace body 1, and a guide sleeve 11 is fixed to the lower part of the furnace body 1. The threaded sleeve 10 can be directly fixed to the side wall inside the furnace body 1, or indirectly fixed to the upper part of the furnace body 1 through the furnace cover. The guide sleeve 11 is directly fixed to the side wall inside the furnace body 1. Then, the upper part of the sealing rod 3 is threadedly connected to the threaded sleeve 10, and the lower part of the sealing rod 3 is slidably disposed in the guide sleeve 11. Through the cooperation of the threaded sleeve 10 and the guide sleeve 11, the stability and reliability of the sealing rod 3 when it moves up and down are ensured, and the sealing effect of the sealing ball head 9 on the liquid inlet end is also ensured.

[0032] In a specific embodiment, such as Figure 1-5 As shown, the lead-filling pipe 4 includes a horizontal pipe 12 and an adapter sleeve 13. The adapter sleeve 13 is welded to the bottom surface of the furnace body 1, and the liquid inlet sleeve 7 is threaded onto the adapter sleeve 13. In this embodiment, the adapter sleeve 13 can be a cylindrical structure or a convex cross-section structure. Figure 1 , 2 A schematic diagram of the adapter sleeve 13 having a cylindrical structure is shown. Figure 3 , 4 A schematic diagram of the convex-shaped cross-section of the adapter sleeve 13 is shown. The upper end of the adapter sleeve 13 has an internal thread, and the outer surface of the liquid inlet mold sleeve 7 has a corresponding external thread. The liquid inlet mold sleeve 7 is fixed to the upper end of the adapter sleeve 13 via the external and internal threads, facilitating assembly and disassembly. After fixing, the upper end face of the adapter sleeve 13, the upper end face of the liquid inlet mold sleeve 7, and the bottom surface of the furnace body 1 are all on the same horizontal plane, enabling effective drainage of all molten lead from the furnace body 1.

[0033] In addition, the sealing ball plug 6 is fixed to the outer end of the horizontal tube 12 by the flange 5. The inner end of the horizontal tube 12 is welded to the lower end of the adapter sleeve 13 and forms an L-shaped structure. The horizontal tube 12 and the liquid inlet sleeve 7 are connected by the adapter sleeve 13. When both ends of the lead pipe 4 are not blocked, the lead liquid enters the adapter sleeve 13 through the liquid inlet sleeve 7, then enters the horizontal tube 12 through the adapter sleeve 13, and finally is discharged through the liquid outlet end.

[0034] In a specific embodiment, such as Figure 2-5 As shown, the upper end face of the liquid inlet mold sleeve 7 is evenly provided with multiple tool holes 14 surrounding the conical inclined surface 8. By inserting the auxiliary tool into the tool hole 14, the rotation of the liquid inlet mold sleeve 7 can be controlled, thereby realizing the assembly and disassembly of the liquid inlet mold sleeve 7 on the adapter sleeve 13, making the operation simpler and more convenient.

[0035] In a specific embodiment, such as Figure 1 As shown, the lead pipe 4 can be welded and fixed at a 45-degree angle to the adjacent two side walls of the furnace body 1 or fixed to the side wall of the furnace body 1. In this embodiment, the lead pipe 4 is welded and fixed at a 45-degree angle to the adjacent two side walls of the furnace body 1 to adapt to specific site conditions.

[0036] The implementation principle of this utility model is as follows:

[0037] When a large amount of molten lead needs to be drained from furnace body 1, first loosen flange 5, remove sealing ball plug 6, and release the seal at the outlet end of lead discharge pipe 4. Then, control the sealing rod 3 to rise, causing the sealing ball head 9 to separate from the conical inclined surface 8, releasing the seal at the inlet end of lead discharge pipe 4. At this time, the molten lead can enter the transition sleeve 13 through the inlet mold sleeve 7, then enter the horizontal pipe 12 through the transition sleeve 13, and finally be discharged through the outlet end. After the molten lead in furnace body 1 is drained, first seal the inlet end, then seal the outlet end to allow molten lead to continue accumulating.

[0038] The above description is only a specific embodiment of the present utility model. Any feature disclosed in this specification may be replaced by other equivalent or similar features unless otherwise specified. All features or steps in all methods or processes disclosed may be combined in any way except for mutually exclusive features and / or steps.

Claims

1. A lead melting furnace with a double-sealed lead-discharging structure, comprising a furnace body (1) and a lead-discharging assembly (2), characterized in that: The lead-discharging assembly (2) includes a sealing rod (3) and an L-shaped lead-discharging pipe (4). The lead-discharging pipe (4) is welded to the bottom of the furnace body (1). The liquid outlet end of the lead-discharging pipe (4) is fixed with a sealing ball plug (6) through a flange (5). The liquid inlet end of the lead-discharging pipe (4) is fixed with a detachable liquid inlet mold sleeve (7). The wear resistance of the liquid inlet mold sleeve (7) is greater than that of the lead-discharging pipe (4). The upper end of the liquid inlet mold sleeve (7) is provided with a tapered inclined surface (8). The sealing rod (3) is vertically set at the inlet. Directly above the liquid end, the upper end of the sealing rod (3) protrudes through the furnace body (1), and the lower end of the sealing rod (3) is fixed with a sealing ball head (9) that matches the conical inclined surface (8); the sealing rod (3) can be moved up and down under control. When the sealing rod (3) moves down until the sealing ball head (9) abuts against the conical inclined surface (8), the liquid inlet end of the lead pipe (4) is blocked; when the sealing rod (3) moves up until the sealing ball head (9) disengages from the conical inclined surface (8), the liquid inlet end of the lead pipe (4) is opened.

2. The lead melting furnace with a double-sealed lead-discharging structure according to claim 1, characterized in that: The upper part of the furnace body (1) is fixed with a screw sleeve (10), the lower part of the furnace body (1) is fixed with a guide sleeve (11), the upper part of the sealing rod (3) is threadedly connected in the screw sleeve (10), and the lower part of the sealing rod (3) is slidably disposed in the guide sleeve (11).

3. A lead melting furnace with a double-sealed lead-discharging structure according to claim 1 or 2, characterized in that: The lead-feeding pipe (4) includes a horizontal pipe (12) and an adapter sleeve (13). The adapter sleeve (13) is welded to the bottom surface of the furnace body (1). The liquid inlet sleeve (7) is threadedly fixed inside the upper end of the adapter sleeve (13). The sealing ball plug (6) is fixed to the outer end of the horizontal pipe (12) through the flange (5). The inner end of the horizontal pipe (12) is welded to the lower end of the adapter sleeve (13). The horizontal pipe (12) and the liquid inlet sleeve (7) are connected through the adapter sleeve (13).

4. A lead melting furnace with a double-sealed lead-discharging structure according to claim 3, characterized in that: The upper end face of the liquid inlet sleeve (7) is evenly provided with multiple tool holes (14) surrounding the conical inclined surface (8).

5. A lead melting furnace with a double-sealed lead-discharging structure according to claim 3, characterized in that: The upper end face of the adapter sleeve (13), the upper end face of the liquid inlet sleeve (7), and the bottom surface of the furnace body (1) are all located on the same horizontal plane.

6. A lead melting furnace with a double-sealed lead-discharging structure according to claim 1, characterized in that: The inclination angle of the conical inclined plane (8) is 45 degrees.

7. A lead melting furnace with a double-sealed lead-discharging structure according to claim 1, characterized in that: The lead pipe (4) is welded and fixed at 45 degrees to the adjacent two side walls of the furnace body (1) or on the side wall of the furnace body (1).

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