Water-cooled negative-pressure closed lead melting pot
By designing a water-cooled negative pressure sealed lead melting pot, the traditional lead melting pot has solved the problems of high temperature, single function, poor dust collection effect and low utilization rate of auxiliary materials, and achieved a more efficient and safer lead refining process.
Patent Information
- Application Number
- CN202420816216.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-04-19
- Publication Date
- 2025-05-02
- Estimated Expiration
- 2034-04-19
AI Technical Summary
Traditional lead melting pots have problems such as high temperature, single function, poor dust collection effect, and low utilization rate of auxiliary materials.
A water-cooled negative pressure sealed lead pot is designed, which adopts a water jacket and sealing structure, combined with a dust extraction device and a rotatable pot cover to achieve a sealed and negative pressure state, reduce the temperature in the pot, and improve the dust collection effect and the uniform utilization of auxiliary materials.
It effectively reduces the temperature in the pot, improves the dust collection effect and the utilization rate of auxiliary materials, solves multiple problems in traditional lead melting pots, and improves production efficiency and safety.
Smart Images
Figure CN222824792U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the technical field of nonferrous metal refining and manufacturing, and specifically discloses a lead melting pot. Background Art
[0002] The lead melting pot is an important tool in the crude lead refining process, which plays the role of melting and stirring lead metal materials to remove impurities. Lead recycling plants will recycle and dispose of various types of lead metal materials, including sheet lead strips, granular lead grids, small block lead piles, and long and large blocks of crude lead. Among them, large and long lead metal materials are mainly thrown into the pot by a crane to lift the lead and then throw it from the pot surface; smaller lead metal materials are generally thrown into the pot by a spiral. In order to meet the above two ways of throwing the pot, conventional lead smelting enterprises generally use two different types of lead melting pots: the former uses a fully open or mostly open pot cover; the latter uses a fully covered or mostly covered pot cover (only a slag scoop is reserved). This design has the following problems: 1. The fully open or mostly open pot cover cannot be closed for dust collection, and the smoke and dust at the production site is large. Moreover, auxiliary materials can only be added manually, which results in uneven burning loss and low auxiliary material utilization rate; 2. Large pieces of lead metal materials cannot be added to the fully covered or mostly covered pot cover, and the application scenarios are limited; 3. The fully covered pot cover is fed through a spiral, and even if the other parts are well sealed, there is still a lot of air leakage at the spiral, and the dust collection effect is poor. In addition, since there is a mixer at the top of the lead pot and it uses a belt drive, when the temperature of the material in the lead pot is too high, the mixer drive belt ages quickly, and the pot cover is easily deformed by heat, which is not conducive to the smooth progress of production. Summary of the invention
[0003] The utility model aims to provide a water-cooled negative pressure closed lead melting pot to solve the problems of high upper temperature, single function, poor dust collection effect and low auxiliary material utilization rate of the traditional lead melting pot in the above-mentioned background technology.
[0004] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: including a pot body, a mixer, a fixed pot cover, and a movable pot cover, wherein the fixed pot cover has an interlayer provided with a water jacket, and two ends are provided with a water inlet and a water outlet, wherein the water inlet is at the lower part of one end of the fixed pot cover, and the water outlet is at the upper part of the other end of the fixed pot cover; a feeding port and a dust collecting port are provided on the upper surface of the fixed pot cover; an openable and closable sealing plate is provided above the feeding port, and a feeding spiral feeding port is provided at the upper end of the sealing plate; the movable pot cover comprises a left semi-movable pot cover and a right semi-movable pot cover matched with the left semi-movable pot cover, and one side of the left / right semi-movable pot cover is hingedly connected to the two sides of the fixed pot cover; the left / right semi-movable pot cover comprises a horizontal cover plate and an arc plate standing on the side of the horizontal cover plate, wherein the horizontal cover plate is a fan-shaped plate, and a movable giving way recess for giving way to the mixer is provided at the center of the fan-shaped plate, and a fixed giving way recess matched with the movable giving way recess is provided on the fixed pot cover, and the stirring shaft of the mixer passes through the fixed door position recess and extends into the pot body.
[0005] When the left / right semi-movable pot cover rotates around the hinge to close with the fixed pot cover, the pot cover composed of the movable pot cover and the fixed pot cover is in a closed and sealed state; when the left / right semi-movable pot cover rotates around the hinge to separate from the fixed pot cover, the pot cover composed of the movable pot cover and the fixed pot cover is in an open state.
[0006] The discharge port is an inverted right prism structure with a hollow interior, wherein the inner side length of the upper bottom square is 380mm-420mm, the inner side length of the lower bottom square is 190mm-220mm, the right prism height is 80mm-120mm, the lower bottom is connected to the fixed pot cover, and a square sealing plate is provided at the upper end, the size of which is consistent with the upper bottom square.
[0007] The movable pot cover is composed of two hollow quarter-cylindrical structures, whose inner diameter is the same as the inner diameter of the pot body and whose height is the same as that of the fixed pot cover; the movable pot cover can rotate around the axis of the connection between the movable pot cover and the fixed pot cover, and the maximum rotation angle is 80°; the fixed pot cover is a hollow semi-cylindrical structure, whose inner diameter is the same as the inner diameter of the pot body and whose height is 800mm-1100mm.
[0008] The pot body is hemispherical, with an inner diameter of 2600mm-3100mm, and a vertical distance between the upper edge of the pot and the bottom of the pot of 1400mm-1800mm; the mixer 2 is fixed at the center of the pot body 1.
[0009] The dust collecting port is in the shape of a hollow cylinder with an inner diameter of 180 mm to 200 mm. The lower bottom is communicated with the fixed pot cover, and the upper end is connected to the dust collecting pipe.
[0010] The feeding opening is located on the symmetry axis of the upper surface of the fixed pot cover, and the distance between the center of the square at the bottom of the feeding opening and the center of the fixed pot cover is 800mm-900mm.
[0011] The distance between the center of the lower bottom of the dust collecting port and the center of the fixed pot cover is 1100-1200 mm, and the angle between the connecting line of the feeding port 5 and the center of the fixed pot cover and the connecting line of the dust collecting port and the center of the fixed pot cover is 55°-75°.
[0012] The utility model provides a water-cooled negative pressure closed lead melting pot. The pot is equipped with a dust extraction device and has good sealing performance. It is in a micro-negative pressure state smaller than the atmospheric pressure, which can effectively prevent the overflow of smoke and dust. It solves the problems of high upper temperature, large smoke and dust, single function and high auxiliary material consumption in the production process of conventional lead melting pots. The utility model has the advantages of wide application, less smoke and dust in the production process, uniform addition of auxiliary materials and high utilization rate. BRIEF DESCRIPTION OF THE DRAWINGS
[0013] Figure 1 It is a three-dimensional structural schematic diagram of the utility model;
[0014] Figure 2 This is the front view of the utility model;
[0015] Figure 3 It is the left view of the utility model;
[0016] Figure 4 It is a top view of the utility model;
[0017] In the figure: 1. pot body; 2. mixer; 3. fixed pot cover; 4. movable pot cover; 5. feed port; 6. dust collecting port; 7. sealing plate; 8. water inlet; 9. water outlet;
[0018] D, inner diameter of the pot; H, vertical distance from the upper edge of the pot to the bottom; D1, inner diameter of the fixed pot cover; H1, height of the fixed pot cover; D2, inner diameter of the movable pot cover; H2, height of the movable pot cover; L1, inner side length of the upper bottom square of the feeding port; L2, inner side length of the lower bottom square of the feeding port; h, height of the feeding port; d, inner diameter of the dust collecting port; M, distance from the center of the lower bottom square of the feeding port to the center of the fixed pot cover; N, distance from the center of the lower bottom circle of the dust collecting port to the center of the fixed pot cover; a, rotation angle of the movable pot cover; b, angle between the line connecting the feeding port and the center of the fixed pot cover and the line connecting the dust collecting port and the center of the fixed pot cover. DETAILED DESCRIPTION
[0019] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.
[0020] See also Figure 1The utility model provides a water-cooled negative pressure closed lead melting pot: comprising a pot body 1, a mixer 2, a fixed pot cover 3, and a movable pot cover 4. The fixed pot cover 3 is provided with a feeding port 5 and a dust collecting port 6; an openable and closable windshield 7 is provided above the feeding port 5; and the movable pot cover 4 can be opened and closed.
[0021] See also Figure 2-4 The utility model provides a water-cooled negative pressure closed lead melting pot, wherein the pot body 1 is hemispherical, the inner diameter D is 2600mm-3100mm, and the vertical distance H between the upper edge of the pot and the bottom is 1400mm-1800mm. The stirrer 2 is fixed at the center of the pot body 1, and the upper end is connected to a motor for stirring. The fixed pot cover 3 is a hollow semi-cylindrical structure, the inner diameter D1 is the same as the inner diameter D of the pot body, and the height H1 is 800mm-1100mm. The movable pot cover 4 is composed of two hollow quarter-cylindrical structures, the inner diameter D2 is the same as the inner diameter D of the pot body, and the height H2 is the same as the height H1 of the fixed pot cover. The movable pot cover 4 can rotate around the axis of the connection between the movable pot cover 4 and the fixed pot cover 3, and the maximum rotation angle a is 80°. The fixed pot cover 3 has an interlayer with a water jacket, the water inlet 8 is at the lower part of one end of the fixed pot cover 3, and the water outlet 9 is at the upper part of the other end of the fixed pot cover 3. The discharge port 5 is an inverted right prism structure with a hollow interior, wherein the inner side length L1 of the upper bottom square is 380mm-420mm, the inner side length L2 of the lower bottom square is 190mm-220mm, the right prism height h is 80mm-120mm, the lower bottom is connected to the fixed pot cover 3, and a square sealing plate 7 is provided at the upper end, the size of which is consistent with the upper bottom square, and the upper end of the sealing plate 7 is connected to the feeding spiral discharge port. The dust collecting port 6 is a hollow cylindrical shape with an inner diameter d of 180mm-200mm, the lower bottom is connected to the fixed pot cover 3, and the upper end is connected to the dust collecting pipe. The discharge port 6 is located on the symmetry axis of the upper surface of the fixed pot cover 3, and the distance M between the center of the lower bottom square of the discharge port 5 and the center of the fixed pot cover 3 is 800mm-900mm. The distance N between the center of the bottom of the dust collecting port 6 and the center of the fixed pot cover is 1100-1200 mm, and the angle b between the connecting line between the feeding port and the center of the fixed pot cover and the connecting line between the dust collecting port and the center of the fixed pot cover is 55°-75°.
[0022] Working principle: The utility model provides a water-cooled negative pressure closed lead melting pot, which can handle lead metal materials of different sizes. The working principle is described below:
[0023] Input of lead metal materials: 1. Handling of large-sized lead metal materials: When feeding, first rotate the movable pot cover 4 to the fully open state, and then use the crane to lift the large piece of crude lead into the pot for melting. 2. Handling of small-sized lead metal materials: When feeding, first close the movable pot cover 4 and the sealing plate 7, and put the small-sized lead metal materials into the spiral inlet silo, and gradually transport them to the lead melting pot for melting through the spiral.
[0024] Refining operation: After the lead is melted, close the movable pot cover 4, open the dust collecting fan and the mixer 2 connected to the dust collecting port 6, open the sealing plate 7 and the feeding screw in turn, and evenly add the auxiliary materials to refine the crude lead. After the auxiliary materials are added, close the sealing plate 7. At this time, the pot is basically in a closed state, and the dust extraction effect is better. During the refining process, when the temperature in the pot generally reaches above 500°C, open the water inlet 8 of the fixed pot cover 3 to start water cooling to protect the pot cover and the mixer. After the refining is completed, open a movable pot cover 4 near the dust collecting port to remove the slag. One cycle of the refining process is completed.
[0025] Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art may still modify the technical solutions described in the aforementioned embodiments, or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention shall be included in the protection scope of the present invention.
Claims
1. A water-cooled negative pressure closed lead melting pot, characterized in that: The invention comprises a pot body (1), a mixer (2), a fixed pot cover (3), and a movable pot cover (4); the fixed pot cover (3) has an inner layer provided with a water jacket, and two ends are provided with a water inlet (8) and a water outlet (9); the water inlet (8) is located at the lower part of one end of the fixed pot cover (3), and the water outlet (9) is located at the upper part of the other end of the fixed pot cover (3); a feed outlet (5) and a dust collecting port (6) are provided on the upper surface of the fixed pot cover (3); an openable and closable sealing plate (7) is provided above the feed outlet (5), and a feed screw feed outlet is provided at the upper end of the sealing plate (7); The movable pot cover (4) comprises a left semi-movable pot cover and a right semi-movable pot cover cooperating with the left semi-movable pot cover, and one side of the left / right semi-movable pot cover is hingedly connected to two sides of the fixed pot cover (3); the left / right semi-movable pot cover comprises a horizontal cover plate and a vertical arc plate standing on the side of the horizontal cover plate, the horizontal cover plate is a fan-shaped plate, and a movable recess for making way for the stirrer (2) is provided at the center of the fan-shaped plate, and a fixed recess cooperating with the movable recess is provided on the fixed pot cover (3), and a stirring shaft of the stirrer (2) passes through the fixed door recess and extends into the pot body (1).
2. The water-cooled negative pressure sealed lead melting pot according to claim 1 is characterized in that: When the left / right semi-movable pot cover rotates around the hinge to close with the fixed pot cover, the pot cover formed by the movable pot cover (4) and the fixed pot cover (3) is in a closed sealed state; when the left / right semi-movable pot cover rotates around the hinge to separate from the fixed pot cover (3), the pot cover formed by the movable pot cover (4) and the fixed pot cover (3) is in an open state.
3. The water-cooled negative pressure sealed lead melting pot according to claim 1 is characterized in that: The discharge port is an inverted right prism structure with a hollow interior, wherein the inner side length of the upper bottom square is 380mm-420mm, the inner side length of the lower bottom square is 190mm-220mm, the right prism height is 80mm-120mm, the lower bottom is connected to the fixed pot cover (3), and the upper end is provided with a square sealing plate, the size of which is consistent with the upper bottom square.
4. The water-cooled negative pressure sealed lead melting pot according to claim 1 is characterized in that: The movable pot cover is composed of two hollow quarter-cylindrical structures, the inner diameter of which is the same as the inner diameter of the pot body, and the height is the same as the height of the fixed pot cover; the movable pot cover can rotate around the axis of the connection between the movable pot cover and the fixed pot cover, and the maximum rotation angle is 80°; the fixed pot cover (3) is a hollow semi-cylindrical structure, the inner diameter of which is the same as the inner diameter of the pot body (1), and the height is 800mm-1100mm.
5. The water-cooled negative pressure sealed lead melting pot according to claim 4 is characterized in that: The pot body (1) is hemispherical, with an inner diameter of 2600 mm-3100 mm, and a vertical distance between the upper edge of the pot and the bottom of the pot of 1400 mm-1800 mm; the mixer (2) is fixed at the center of the pot body (1).
6. The water-cooled negative pressure sealed lead melting pot according to claim 1, characterized in that: The dust collecting port (6) is in the shape of a hollow cylinder with an inner diameter of 180 mm to 200 mm. The lower bottom is connected to the fixed pot cover (3) and the upper end is connected to the dust collecting pipe.
7. The water-cooled negative pressure sealed lead melting pot according to claim 1 is characterized in that: The feed opening (5) is located on the symmetry axis of the upper surface of the fixed pot cover (3), and the center of the square at the bottom of the feed opening is 800 mm to 900 mm away from the center of the fixed pot cover.
8. The water-cooled negative pressure sealed lead melting pot according to claim 1 is characterized in that: The distance between the center of the bottom of the dust collecting port (6) and the center of the fixed pot cover (3) is 1100-1200 mm, and the angle between the line connecting the center of the feeding port (5) and the fixed pot cover (3) and the line connecting the center of the dust collecting port (6) and the fixed pot cover (3) is 55°-75°.