Automatic control device for lead discharging of lead smelting furnace

Abstract

The utility model discloses an automatic lead discharging control device of a lead smelting furnace, and relates to the technical field of auxiliary equipment of the lead smelting furnace, in particular to the automatic lead discharging control device of the lead smelting furnace, which is arranged on a lead discharging chute of the lead smelting furnace and comprises a supporting component and a flow guide component, the supporting component comprises a first supporting shaft, a second supporting shaft and two supporting assemblies, and the two supporting assemblies are detachably installed on the edges of the tops of the two side walls of the lead discharging chute correspondingly. A first servo electric cylinder and a second servo electric cylinder are supported through a supporting component, an output shaft of the second servo electric cylinder is used for driving a cylinder barrel of the first servo electric cylinder to locally rotate around a second supporting shaft, and therefore the inclination angle of the first servo electric cylinder is adjusted; the distance between the whole device and the lead discharging hole can be adjusted by sliding the supporting assembly on the lead discharging chute, so that the flow guide head can be accurately and quickly inserted into the lead discharging hole, and the lead discharging efficiency is improved.

Description

Technical Field

[0001] This utility model relates to the technical field of auxiliary equipment for lead smelting furnaces, specifically an automatic control device for lead feeding from a lead smelting furnace. Background Technology

[0002] After the lead smelting process is completed, slag needs to be removed and lead discharged. The discharge port is usually located on the lower side of the furnace. The traditional method is to first drive wedge-shaped plugs into the discharge port with a sledgehammer and secure them before each shift's charging, then seal them with yellow mud to prevent lead leakage if the plugs burn out. After charging and smelting, slag is removed and lead is discharged. During discharge, a steel rod is used to pry out the yellow mud and the end of the wooden rod, then the steel rod is driven into the discharge pipe with a sledgehammer until all the molten lead (leaving a certain amount of bottom lead) is discharged at once. Only then can the discharge port be sealed with plugging wood and yellow mud to finish the discharge process. Using this method, the wooden rods are often not secured tightly, leading to lead leakage. Sometimes, the discharge pipe is completely blocked by solidified lead that has condensed, making it impossible to penetrate with a steel rod. In such cases, manual burning with an oxygen flame through the steel pipe is necessary to clear the solid lead in the discharge pipe at high temperature, or a special drilling machine is used to unclog the pipe.

[0003] In a published Chinese patent application (publication number CN211373250U), titled "An Automatic Control Device for Lead Discharging from a Lead Smelting Furnace," the prior art uses a plunger to block the lead discharge hole and a guide column to divert the molten lead, achieving a smooth discharge process when lead needs to be discharged. However, this prior art has certain limitations in practical implementation. In the lead discharge process, the prior art uses a guide column to penetrate the lead discharge hole in the furnace wall, allowing the molten lead to flow out. However, when the molten lead in the discharge hole is solidified, it blocks the hole, making it difficult for the guide column to be inserted and thus hindering the discharge. Furthermore, this prior art cannot adjust the tilt angle of the guide column, making it difficult to quickly insert the column into the discharge hole, causing delays in production efficiency. Utility Model Content

[0004] (a) Technical problems to be solved

[0005] To address the shortcomings of existing technologies, this utility model provides an automatic control device for lead discharge from a lead smelting furnace, which solves the problems mentioned in the background section.

[0006] (II) Technical Solution

[0007] To achieve the above objectives, this utility model provides the following technical solution: an automatic lead-feeding control device for a lead smelting furnace, installed on the lead-feeding chute of the furnace, comprising a support component and a flow guiding component. The support component includes a first support shaft, a second support shaft, and two support assemblies. The two support assemblies are detachably installed on the top edges of the side walls of the lead-feeding chute, and are slidably disposed on the top edges of the side walls. The two ends of the first support shaft are rotatably connected to the two support assemblies, and the two ends of the second support shaft are rotatably connected to the two support assemblies. There is a certain height difference between the first and second support shafts. The flow guiding component includes a first servo electric cylinder, a second servo electric cylinder, and a flow guiding head. The cylinder end of the first servo electric cylinder is fixedly installed on the second support shaft, and the cylinder end of the second servo electric cylinder is fixedly installed on the first support shaft. The output shaft end of the second servo electric cylinder is hinged to the outer side wall of the cylinder of the first servo electric cylinder. The flow guiding head is detachably installed on the output shaft end of the first servo electric cylinder, and a resistance wire is installed inside the flow guiding head.

[0008] Optionally, a base is fixedly mounted on the second support shaft, and the cylinder end of the first servo electric cylinder is fixedly mounted to one side wall of the base.

[0009] Optionally, a first flange is fixedly connected to the output shaft end of the first servo electric cylinder, and a second flange is fixedly connected to one end of the guide head. The second flange and the first flange are fixedly installed by multiple bolts. The resistance wire is laid on the inner side wall of the guide head, and a filling shell is fixedly installed inside the guide head. The filling shell presses and fixes the resistance wire.

[0010] Optionally, the first flange is one of a ceramic fiber flange, a ceramic matrix composite flange, and a graphite flange, and the second flange is one of a ceramic fiber flange, a ceramic matrix composite flange, and a graphite flange.

[0011] Optionally, the support assembly includes a support plate, a U-shaped steel, and a lifting member. The lower edge of the support plate is fixedly connected to the upper surface of the U-shaped steel, and the lifting member is fixedly installed on the outer side wall of the support plate. The U-shaped steel is provided with a plurality of second limiting holes.

[0012] Optionally, the support plate is rotatably connected to the first support shaft and the second support shaft, respectively.

[0013] (III) Beneficial Effects

[0014] This utility model provides an automatic control device for lead charging in a lead smelting furnace, which has the following beneficial effects:

[0015] 1. The automatic lead feeding control device for a lead smelting furnace supports a first servo electric cylinder and a second servo electric cylinder through a support component. The output shaft of the second servo electric cylinder drives the cylinder of the first servo electric cylinder to rotate partially around the second support shaft, thereby adjusting the tilt angle of the first servo electric cylinder. By sliding the support component on the lead feeding chute, the distance between the entire device and the lead feeding hole can be adjusted, so that the guide head can be accurately and quickly inserted into the lead feeding hole, thereby improving the lead feeding efficiency.

[0016] 2. The automatic lead discharge control device for a lead smelting furnace heats the guide head with a resistance wire and drives the guide head to be inserted into the lead discharge hole by a first servo electric cylinder. This allows the guide head to be accurately and quickly inserted into the lead discharge hole at high temperature, heating and melting the solidified lead in the lead discharge hole. Under the power drive of the first servo electric cylinder, the guide head can effectively conduct the lead discharge hole. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the provided drawings without creative effort.

[0018] Figure 1 This is a three-dimensional structural diagram of the automatic lead-feeding control device for a lead smelting furnace during implementation of this utility model;

[0019] Figure 2 This is a three-dimensional structural diagram of an automatic lead-feeding control device for a lead smelting furnace according to the present invention;

[0020] Figure 3 This is a schematic diagram of the structure of the automatic lead feeding control device for a lead smelting furnace under working conditions during implementation;

[0021] Figure 4 This is a three-dimensional structural diagram of the guide head in the automatic lead discharge control device for a lead smelting furnace according to the present invention.

[0022] Figure 5 This is a cross-sectional view of the guide head in the automatic lead discharge control device for a lead smelting furnace according to this utility model.

[0023] In the diagram: 1. Furnace wall; 2. Lead feeding hole; 3. Lead feeding chute; 4. First limiting hole; 5. Support plate; 6. U-shaped steel; 7. Limiting bolt; 8. First support shaft; 9. Second support shaft; 10. Base; 11. First servo electric cylinder; 12. Second servo electric cylinder; 13. First flange; 14. Second flange; 15. Guide head; 16. Filling shell; 17. Resistance wire; 18. Lifting component. Detailed Implementation

[0024] The technical solution of this utility model will now be clearly and completely described in conjunction with the accompanying drawings. In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description. They do not indicate or imply that the device or element 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," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying anything.

[0025] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments.

[0026] Please see Figures 1 to 5 This utility model provides a technical solution: An automatic lead discharge control device for a lead smelting furnace, as shown in this technical solution, is installed in conjunction with the lead smelting furnace. The furnace wall 1 has a lead discharge hole 2, and a lead discharge chute 3 is fixedly connected to the outer wall of the furnace wall 1 near the lead discharge hole 2. The lead discharge chute 3 is made of cast concrete or a high-temperature resistant alloy material. A lead molten material flow channel is formed inside the lead discharge chute 3.

[0027] An automatic control device for lead discharge from a lead smelting furnace is installed on the lead discharge chute 3 of the lead smelting furnace and includes a support component and a flow guiding component.

[0028] The support components include a first support shaft 8, a second support shaft 9, and two support assemblies. The two support assemblies are detachably mounted on the top edges of the side walls of the lead chute 3, and are slidably positioned on the top edges of the side walls of the lead chute 3. Both ends of the first support shaft 8 and the second support shaft 9 are rotatably connected to the two support assemblies, respectively. A certain height difference exists between the first support shaft 8 and the second support shaft 9, allowing the device to form a stable support foundation on the lead chute 3. This also provides suitable space and angle adjustment possibilities for the installation and movement of the guide component, ensuring that the guide component can be accurately aligned with the lead hole 2, providing stable support conditions for subsequent lead-feeding operations.

[0029] The flow guiding component includes a first servo electric cylinder 11, a second servo electric cylinder 12, and a flow guiding head 15. The cylinder end of the first servo electric cylinder 11 is fixedly mounted on the second support shaft 9, and the cylinder end of the second servo electric cylinder 12 is fixedly mounted on the first support shaft 8. The output shaft end of the second servo electric cylinder 12 is hinged to the outer wall of the cylinder of the first servo electric cylinder 11. The flow guiding head 15 is detachably mounted on the output shaft end of the first servo electric cylinder 11, and a resistance wire 17 is installed inside the flow guiding head 15.

[0030] The first servo electric cylinder 11 is a multi-section high-temperature resistant servo electric cylinder, and the second servo electric cylinder 12 is also a high-temperature resistant servo electric cylinder. In actual implementation, the exterior of the first servo electric cylinder 11 and the second servo electric cylinder 12 are heat-insulated, such as by wrapping them with high-temperature resistant heat-insulating felt. The first servo electric cylinder 11 is used to drive the guide head 15 to insert into the lead-filling hole 2. The output shaft of the second servo electric cylinder 12 is used to drive the cylinder of the first servo electric cylinder 11 to rotate partially around the second support shaft 9, thereby adjusting the tilt angle of the first servo electric cylinder 11 and thus changing the insertion angle of the guide head 15, so that the guide head 15 can be better aligned with the lead-filling hole 2, improving the accuracy and efficiency of insertion.

[0031] Specifically, a base 10 is fixedly mounted on the second support shaft 9, and the cylinder end of the first servo electric cylinder 11 is fixedly mounted to one side wall of the base 10. The base 10 is used to support and fix the first servo electric cylinder 11, thereby expanding the force-bearing point of the first servo electric cylinder 11.

[0032] Specifically, a first flange 13 is fixedly connected to the output shaft end of the first servo electric cylinder 11, and a second flange 14 is fixedly connected to one end of the guide head 15. The second flange 14 and the first flange 13 are fixedly installed with multiple bolts. A resistance wire 17 is laid on the inner wall of the guide head 15, and a filling shell 16 is fixedly installed inside the guide head 15, pressing and fixing the resistance wire 17. The first flange 13 is one of a ceramic fiber flange, a ceramic matrix composite flange, or a graphite flange, and the second flange 14 is one of a ceramic fiber flange, a ceramic matrix composite flange, or a graphite flange.

[0033] The filling shell 16 presses and fixes the resistance wire 17, protecting it, ensuring its secure installation inside the flow guide head 15, and uniformly conducting heat, thereby improving the heating effect and service life of the flow guide head 15. A second flange 14 is fixedly connected to one end of the flow guide head 15, and is secured to the first flange 13 by multiple bolts. This detachable connection facilitates replacement and maintenance of the flow guide head 15. The first flange 13 and the second flange 14 may include, but are not limited to, one of the following: ceramic fiber flange, ceramic matrix composite flange, or graphite flange. Ceramic fiber flanges, ceramic matrix composite flanges, and graphite flanges possess high temperature resistance and are non-conductive (or have low thermal conductivity), reducing or avoiding the impact of heat on the first servo electric cylinder 11.

[0034] Specifically, the support assembly includes a support plate 5, a U-shaped steel 6, and a lifting member 18. The lower edge of the support plate 5 is fixedly connected to the upper surface of the U-shaped steel 6. The lifting member 18 is fixedly installed on the outer side wall of the support plate 5. The U-shaped steel 6 has multiple second limiting holes. The support plate 5 is rotatably connected to the first support shaft 8 and the second support shaft 9, respectively. The U-shaped steel 6 is upside down on the top edge of the side wall of the lead chute 3, and the U-shaped steel 6 can slide on the top edge of the side wall of the lead chute 3. By sliding the U-shaped steel 6, the distance between the entire device and the lead hole 2 can be adjusted, so that the guide head 15 can be accurately and quickly inserted into the lead hole 2, thereby improving the lead discharge efficiency.

[0035] The lifting component 18 is fixedly installed on the outer wall of the support plate 5, and is used to lift the entire device when needed, so as to facilitate the installation, disassembly and maintenance of the device, or to make fine adjustments to the position of the device in special circumstances. The lifting component 18 is either a handle or a lifting lug. The U-shaped steel 6 has multiple second limiting holes, and the top edge of the side wall of the lead chute 3 has a first limiting hole 4. The limiting bolt 7 passes through the corresponding first limiting hole 4 and second limiting hole, thereby limiting and fixing the U-shaped steel 6 to the lead chute 3, and thus fixing the entire device to the lead chute 3.

[0036] In actual implementation, this device also includes other components, such as temperature controllers, relays, temperature sensors, and programmable logic controllers, to meet the basic requirement of generating high temperatures with resistance wire 17. This part is based on existing electric heating technology and will not be described in detail.

[0037] When using this device for lead placement, first, adjust the distance between the entire device and the lead placement hole 2 by sliding the U-shaped steel 6 according to the position of the lead placement hole 2, so that the guide head 15 can be accurately aligned with the lead placement hole 2. Then, start the second servo electric cylinder 12, whose output shaft drives the cylinder of the first servo electric cylinder 11 to rotate partially around the second support shaft 9, adjusting the tilt angle of the first servo electric cylinder 11, thereby changing the insertion angle of the guide head 15, so that the guide head 15 can be better aligned with the lead placement hole 2. Pass the limiting bolt 7 through the corresponding first limiting hole 4 and second limiting hole to fix the U-shaped steel 6 on the lead placement chute 3.

[0038] Next, the first servo electric cylinder 11 is activated, and its output shaft pushes the guide head 15 into the lead-discharging hole 2. During the insertion process, the resistance wire 17 inside the guide head 15 starts to work, heating the guide head 15. When the guide head 15 is inserted into the lead-discharging hole 2, it can heat and melt the solidified lead in the lead-discharging hole 2, preventing the lead-discharging hole 2 from becoming blocked. At the same time, under the power drive of the first servo electric cylinder 11, the guide head 15 can effectively conduct the lead-discharging hole 2, allowing the molten lead to flow smoothly from the lead-discharging hole 2 into the lead-discharging chute 3, completing the lead-discharging operation.

[0039] Throughout the process, the supporting components provide stable support and accurate positioning for the flow guiding components, which, through heating and conduction functions, solve the problems existing in traditional lead-feeding methods, improving lead-feeding efficiency and safety. This invention, through the rational design and coordinated operation of the supporting and flow guiding components, achieves automatic control of the lead-feeding process in a lead smelting furnace. It effectively solves problems such as loose wooden rods, lead leakage, and blockage of the lead-feeding pipes found in traditional lead-feeding methods, improving lead-feeding efficiency and safety, reducing the labor intensity of workers, and has significant practical application value.

[0040] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A lead tapping automatic control device for a lead smelting furnace, which is installed on a lead tapping launder (3) of a lead smelting furnace, characterized in that: The support component comprises a first support shaft (8), a second support shaft (9) and two support assemblies, the two support assemblies are respectively detachably installed on the top edges of the two side walls of the lead placing chute (3), and the support assemblies are slidingly arranged on the top edges of the side walls of the lead placing chute (3), the two ends of the first support shaft (8) are respectively rotationally connected with the two support assemblies, and the two ends of the second support shaft (9) are respectively rotationally connected with the two support assemblies; there is a certain height difference between the first support shaft (8) and the second support shaft (9). The flow guide component comprises a first servo electric cylinder (11), a second servo electric cylinder (12) and a flow guide head (15), the cylinder end of the first servo electric cylinder (11) is fixedly installed on the second support shaft (9), the cylinder end of the second servo electric cylinder (12) is fixedly installed on the first support shaft (8), and the output shaft end of the second servo electric cylinder (12) is hingedly connected with the outer side wall of the cylinder of the first servo electric cylinder (11); the flow guide head (15) is detachably installed on the output shaft end of the first servo electric cylinder (11), and the inside of the flow guide head (15) is provided with a resistance wire (17). The second support shaft (9) is fixedly installed with a base (10), and the cylinder end of the first servo electric cylinder (11) is fixedly installed with one side wall of the base (10).

2. The lead tapping automatic control device of a lead smelting furnace according to claim 1, characterized in that: The output shaft end of the first servo electric cylinder (11) is fixedly connected with a first flange (13), one end of the flow guide head (15) is fixedly connected with a second flange (14), and the second flange (14) and the first flange (13) are fixedly installed through a plurality of bolts; the resistance wire (17) is laid on the inner side wall of the flow guide head (15), and the inside of the flow guide head (15) is fixedly installed with a filling shell (16) for pressing and fixing the resistance wire (17).

3. The lead tapping automatic control device of a lead smelting furnace according to claim 1, characterized in that: The first flange (13) is one of a ceramic fiber flange, a ceramic matrix composite flange and a graphite flange, and the second flange (14) is one of a ceramic fiber flange, a ceramic matrix composite flange and a graphite flange.

4. The lead tapping automatic control device of a lead smelting furnace according to claim 3, characterized in that: The support assembly comprises a support plate (5), a U-shaped steel (6) and a lifting piece (18), the lower end edge of the support plate (5) is fixedly connected with the upper surface of the U-shaped steel (6), the lifting piece (18) is fixedly installed on the outer side wall of the support plate (5), and a plurality of second limiting holes are formed in the U-shaped steel (6).

5. The lead tapping automatic control device of a lead smelting furnace according to claim 1, characterized in that: The support plate (5) is rotationally connected with the first support shaft (8) and the second support shaft (9).

6. The lead tapping automatic control device of a lead smelting furnace according to claim 5, characterized in that: ​

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