Lead-acid battery grid continuous casting lead liquid stirring device

Abstract

This utility model discloses a stirring device for lead-acid battery grid continuous casting molten lead, including a stirring shaft disposed in a lead melting furnace and a stirring blade assembly disposed on the stirring shaft. The stirring blade assembly includes at least two stirring blades of different sizes spaced upwards from the bottom end of the stirring shaft. The stirring shaft can be driven to rotate, causing the stirring blades to stir the molten lead in the lead melting furnace. By setting stirring blades of different sizes at different heights on the stirring shaft, the stirring blades of different sizes can make the molten lead have different stirring speeds at different depths during the stirring process, which is beneficial to enhance the convection and fine dispersion of the molten lead, and make the stirring more uniform.

Description

Technical Field

[0001] This utility model relates to the field of continuous casting production of lead-acid battery grids, specifically to a stirring device for lead-acid battery grid continuous casting lead liquid. Background Technology

[0002] Currently, the lead ingots used in continuous casting lines for lead-acid battery grids are typically alloy lead. In the continuous casting process of lead-acid battery grids, the uniformity of the alloy composition of the lead melt directly affects the mechanical strength, corrosion resistance, and cycle life of the grid. Currently, the industry mainly uses two methods to prepare alloy lead melt:

[0003] 1. Direct melting of pre-alloyed lead ingots: Directly purchase pre-alloyed lead ingots. These ingots have stable composition and can be used directly for continuous casting without stirring after melting. The advantages are simple operation and high composition consistency. The disadvantages are low flexibility, inability to adjust the alloy ratio according to process requirements, and higher cost of pre-alloyed lead ingots.

[0004] 2. Self-prepared alloy lead liquid: In order to optimize costs or adjust the alloy composition, pure lead ingots are mixed and melted with the master alloy. At present, lead liquid stirring mainly relies on mechanical stirring or gas stirring. Alloy elements such as calcium are prone to segregation. Traditional single-layer stirring blades are difficult to achieve sufficient convection between the upper and lower layers of lead liquid, resulting in uneven composition distribution and affecting the quality of the grid.

[0005] Therefore, there is an urgent need for a stirring device for lead-acid battery grid continuous casting lead liquid, which can stir the lead liquid more evenly and thoroughly during the stirring process. Utility Model Content

[0006] In view of this, the purpose of this utility model is to provide a stirring device for lead-acid battery grid continuous casting lead liquid. During the stirring process, stirring blades of different sizes can make the lead liquid have different stirring speeds at different depths, which is beneficial to enhance the convection and fine dispersion of the lead liquid and make the stirring more uniform.

[0007] The lead-acid battery grid continuous casting lead liquid stirring device provided by this utility model adopts the following technical solution.

[0008] A stirring device for continuous casting of lead-acid battery grids includes a stirring shaft disposed in a lead melting furnace and a stirring blade assembly disposed on the stirring shaft. The stirring blade assembly includes at least two stirring blades of different sizes spaced upwards from the bottom end of the stirring shaft. The stirring shaft can be driven to rotate, causing the stirring blades to stir the lead melt in the lead melting furnace.

[0009] Furthermore, the stirring range of the stirring shaft gradually increases from the bottom to the top of the stirring blades.

[0010] Furthermore, a feeding mechanism is provided on one side of the lead melting furnace for conveying lead alloy and master alloy into the lead melting furnace, and the lead alloy and master alloy are placed on the feeding mechanism at alternating intervals.

[0011] Furthermore, the feeding mechanism is equipped with a counter for counting the lead alloy and the master alloy.

[0012] Furthermore, the lead-melting furnace is equipped with a temperature sensor for monitoring the temperature of the molten lead.

[0013] Furthermore, the temperature sensor is mounted on top of the lead-melting furnace and extends downwards into the molten lead.

[0014] Furthermore, the stirring mechanism also includes a driving component for driving the stirring shaft to rotate, the driving component being installed on one side of the lead melting furnace.

[0015] Furthermore, the output end of the drive component is provided with a drive wheel, and the top end of the stirring shaft is provided with a driven wheel. The drive wheel and the driven wheel are connected by a chain drive.

[0016] In summary, the present invention has at least one of the following beneficial effects:

[0017] 1. By setting different sized stirring blades at different heights on the stirring shaft, the different sized stirring blades can make the lead liquid have different stirring speeds at different depths during the stirring process, which is beneficial to enhance the convection and fine dispersion of the lead liquid and make the stirring more uniform.

[0018] 2. By setting a counter at the discharge port of the feeding mechanism, the lead ingots and lead alloys are counted when they fall into the lead ingot furnace conveying mechanism, thus enabling the counting of the lead alloys and lead alloys and controlling their proportions. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the structure of an embodiment of the present utility model;

[0020] Figure 2 This is a schematic diagram of the stirring mechanism in an embodiment of the present invention;

[0021] Figure 3 for Figure 1 Enlarged view of section A;

[0022] Figure 4 This is a side sectional view of the lead-melting furnace according to an embodiment of the present invention.

[0023] Explanation of reference numerals in the attached figures:

[0024] 1. Stirring shaft; 2. Stirring blade assembly; 3. Feeding mechanism; 4. Counter; 5. Temperature sensor; 6. Drive unit; 7. Drive wheel; 8. Driven wheel. Detailed Implementation

[0025] The following specific examples illustrate the implementation of this utility model. Those skilled in the art can easily understand other advantages and effects of this utility model from the content disclosed in this specification. This utility model can also be implemented or applied through other different specific embodiments, and various details in this specification can also be modified or changed based on different viewpoints and applications without departing from the spirit of this utility model.

[0026] The following is in conjunction with the appendix Figure 1-4 The present invention will be described in further detail below.

[0027] This utility model discloses a stirring device for continuous casting lead molten lead in lead-acid battery grids. (Refer to...) Figure 1-4 The lead-acid battery grid continuous casting lead molten metal stirring device includes a stirring shaft 1 installed in the lead melting furnace and a stirring blade assembly 2 installed on the stirring shaft 1. The stirring blade assembly 2 includes at least two stirring blades of different sizes spaced upwards from the bottom end of the stirring shaft 1. The stirring shaft 1 can be driven to rotate, causing the stirring blades to stir the lead molten metal in the lead melting furnace. By placing stirring blades of different sizes at different height positions on the stirring shaft 1, the stirring blades of different sizes can make the lead molten metal have different stirring speeds at different depths during the stirring process, which is beneficial to enhance the convection and fine dispersion of the lead molten metal and make the stirring more uniform.

[0028] In this embodiment, the stirring range of the stirring blades on the stirring shaft 1 gradually increases from the bottom to the top. There are two stirring blades. The stirring range of the stirring blade at the bottom of the stirring shaft 1 is smaller than that of the stirring blade at the top, so that the lead liquid has different stirring speeds in the upper and lower layers. This is beneficial to enhance the convection of the lead liquid, refine the dispersion, and make the stirring more uniform.

[0029] In this embodiment, a feeding mechanism 3 is provided on one side of the lead melting furnace for conveying lead alloy and master alloy into the furnace. The lead alloy and master alloy are placed alternately on the feeding mechanism 3. The feeding mechanism 3 includes two chain conveyors of different lengths. The longer chain conveyor is used to convey the lead alloy and master alloy to the shorter chain conveyor. The shorter chain conveyor is used to feed the lead alloy and master alloy into the lead melting furnace for melting and stirring. A control system is provided at the bottom of the longer chain conveyor, and a control box is provided on one side. The operation of the feeding mechanism 3 and the lead melting furnace can be controlled through the control box. By setting the lead alloy and master alloy alternately, the quantity of lead alloy and master alloy can be controlled.

[0030] In this embodiment, the feeding mechanism 2 is equipped with a counter 4 for counting lead alloy and master alloy. The counter 4 is located at the discharge port of the long chain conveyor. During the conveying process, the counter 4 on the feeding mechanism 3 counts the lead alloy and master alloy and feeds the counting result back to the control system. When the count reaches the required ratio, the control system can control the stirring mechanism to start and stir the molten lead in the lead melting furnace.

[0031] In this embodiment, a temperature sensor 5 is installed inside the lead melting furnace to monitor the temperature of the molten lead. The temperature sensor 5 can monitor the temperature of the molten lead in the furnace in real time and can feed back the temperature of the molten lead in the furnace to the control system in real time. The system will only allow the stirring mechanism to start stirring when the temperature reaches the set value. If the temperature does not reach the set value, the control system will not start the stirring mechanism after receiving the start signal and will issue an alarm.

[0032] In this embodiment, the temperature sensor 5 is installed on the top of the lead melting furnace and extends downward into the molten lead. By extending the temperature sensor 5 downward into the molten lead, the temperature of the molten lead at different depths can be monitored, making the temperature monitoring of the molten lead more accurate.

[0033] In this embodiment, the stirring mechanism also includes a driving component 6 for driving the stirring shaft 1 to rotate. The driving component 6 is installed on one side of the lead melting furnace. The driving component 6 is a motor. The stirring shaft 1 is driven to rotate by the driving component 6, so that the stirring blade assembly 2 stirs the lead liquid.

[0034] In this embodiment, the output end of the drive component 6 is provided with a drive wheel 7, and the top end of the stirring shaft 1 is provided with a driven wheel 1. The drive wheel 7 and the driven wheel 8 are connected by chain transmission, and the drive wheel 7, the driven wheel 8 and the chain are protected by installing a protective shell on the top of the drive component 6 and the stirring shaft 2.

[0035] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model and are not intended to limit it. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of this utility model without departing from the spirit and scope of the technical solutions of this utility model, and all such modifications or substitutions should be covered within the scope of the claims of this utility model.

Claims

1. A stirring device for continuous casting of lead-acid battery grids, characterized in that: It includes a stirring shaft (1) disposed in a lead melting furnace and a stirring blade assembly (2) disposed on the stirring shaft (1). The stirring blade assembly (2) includes at least two stirring blades of different sizes that are spaced upward from the bottom end of the stirring shaft (1). The stirring shaft (1) can be driven to rotate so that the stirring blades stir the lead liquid in the lead melting furnace.

2. The lead-acid battery grid continuous casting lead liquid stirring device according to claim 1, characterized in that: The stirring shaft (1) gradually increases in stirring range from bottom to top with the stirring blades.

3. The lead-acid battery grid continuous casting lead liquid stirring device according to claim 1, characterized in that: A feeding mechanism (3) is provided on one side of the lead melting furnace for conveying lead alloy and master alloy into the lead melting furnace. The lead alloy and master alloy are placed on the feeding mechanism (3) at intervals.

4. The lead-acid battery grid continuous casting lead melt stirring device according to claim 3, characterized in that: The feeding mechanism (3) is equipped with a counter (4) for counting lead alloys and master alloys.

5. The lead-acid battery grid continuous casting lead liquid stirring device according to claim 1, characterized in that: The lead-melting furnace is equipped with a temperature sensor (5) for monitoring the temperature of the molten lead.

6. The lead-acid battery grid continuous casting lead liquid stirring device according to claim 5, characterized in that: The temperature sensor (5) is installed on the top of the lead furnace and extends downwards into the molten lead.

7. The lead-acid battery grid continuous casting lead liquid stirring device according to claim 1, characterized in that: The stirring device also includes a driving component (6) for driving the stirring shaft (1) to rotate, the driving component (6) being installed on one side of the lead melting furnace.

8. The lead-acid battery grid continuous casting lead liquid stirring device according to claim 7, characterized in that: The output end of the drive component (6) is provided with a drive wheel (7), and the top end of the stirring shaft (1) is provided with a driven wheel (8). The drive wheel (7) and the driven wheel (8) are connected by chain drive.

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