Lead blank forming tool for lead-acid storage battery

Abstract

The lead blank forming tool for the lead-acid storage battery comprises a closed lead liquid heat preservation tank, a cooling water tank and a traction wheel, one end of the lead liquid heat preservation tank is communicated with a lead liquid conveying pipe, and a discharging opening is formed in the lower end of the lead liquid heat preservation tank; the cooling water tank is arranged below the lead liquid heat preservation tank, and a water outlet is formed in the middle of the cooling water tank; the two traction wheels are arranged below a water outlet in the middle of the cooling water tank side by side; the upper end of the molten lead cooling former is fixed at the bottom of the molten lead heat preservation tank, the lower end of the molten lead cooling former is arranged in a water outlet in the middle of the cooling water tank in a penetrating manner, and the horizontal height of the lower end of the molten lead cooling former is not higher than that of a lower port of the water outlet; an inner cavity used for forming is formed in the middle of the lead liquid cooling forming device, and the inner cavity is communicated with a bottom discharging opening of the lead liquid heat preservation groove; while the forming effect and quality of the lead blank are guaranteed, the equipment is simple in structure and easy to control, and the investment cost and the maintenance cost of the equipment can be reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of lead-acid battery production and manufacturing, in particular to a lead blank forming tool for lead-acid batteries. Background Art

[0002] At present, the common forms of lead billet formers in the lead-acid battery industry include: double casting wheel cooling former, single casting wheel + steel belt cooling former, double steel belt cooling former, etc. The cooling water forms of the cooling former include: cooling water pipes distributed inside the casting wheel, cooling water passing through the cooling water pipes; or directly spraying cooling water on the side of the casting wheel / steel belt that does not contact the lead billet. The cooling capacity of the lead billet former and cooling water has a significant impact on the metallographic structure of the lead billet, which further has a significant impact on the corrosion resistance of the lead strip and positive grid after the lead billet is rolled.

[0003] The double-cast wheel cooling former drives the lead alloy liquid in the forming cavity to gradually cool and solidify from the outside to the inside. The lead alloy liquid in contact with the casting wheel solidifies first to form fine equiaxed crystals. As the casting wheel rotates downward, the first formed grains partially fall off and become free, becoming nucleating agents for the growth of internal lead alloy liquid crystals, prompting equiaxed crystals to gradually form from both sides to the center of the ingot. As the solidification layer moves inward, the temperature difference inside the ingot tends to be gentle, and the degree of supercooling is small. In general, the cooling effect of the double-cast wheel cooling former is poor, and the prepared lead ingot is rolled into a lead strip, and after being further prepared into a positive grid, the corrosion resistance is poor.

[0004] The single casting wheel + steel belt cooling former can ensure the cooling effect of the lead billet by increasing the amount of cooling water and reducing the cooling water temperature, but it is difficult to ensure the consistency of the cooling effect on the casting wheel side and the steel belt side. In addition, this method generally involves the liquid lead flowing horizontally to be cooled and formed, resulting in relatively more defects such as pores in the lead billet.

[0005] The double steel belt cooling former has a large structure, occupies a large area, has a large demand for cooling water flow, and the steel belt is replaced frequently. Overall, the equipment requires a large amount of capital investment and has a high maintenance cost. Summary of the invention

[0006] The purpose of the utility model is to solve the problems existing in the above-mentioned prior art, thereby providing a lead billet forming tool for lead-acid batteries, which, while ensuring the lead billet forming effect and quality, has a simple equipment structure and is easy to operate, thereby reducing equipment investment cost and maintenance cost.

[0007] The technical solution of the utility model is: a lead blank forming tool for lead-acid batteries, comprising:

[0008] A closed lead liquid insulation tank, one end of which is connected to a lead liquid conveying pipe, and the lower end of which is provided with a discharge port;

[0009] A cooling water trough, the cooling water trough is arranged below the lead liquid insulation tank, and a water outlet is provided in the middle of the cooling water trough;

[0010] Traction wheels, the number of which is two and which are arranged side by side below the water outlet in the middle of the cooling water tank;

[0011] A lead liquid cooling and forming device, wherein the upper end of the lead liquid cooling and forming device is fixed to the bottom of the lead liquid insulation tank, and the lower end of the lead liquid cooling and forming device is inserted into the water outlet in the middle of the cooling water tank, and the lower end of the lead liquid cooling and forming device is not higher than the horizontal height of the lower end of the water outlet;

[0012] The middle part of the lead liquid cooling and forming device is provided with an inner cavity for forming, and the inner cavity is communicated with the bottom discharge port of the lead liquid insulation tank.

[0013] The water outlet of the cooling water trough is a funnel-shaped structure that is larger at the top and smaller at the bottom. A gap is left between the lower end of the water outlet and the lower end of the lead liquid cooling former for cooling water to flow out.

[0014] The upper end surface of the cooling water trough is flush with the middle of the lead liquid cooling former.

[0015] An overflow port is provided in the upper part of the lead liquid insulation tank, and the overflow port is communicated with the lead pot through a pressure relief overflow pipe.

[0016] An electric heater is arranged inside the lead liquid insulation tank.

[0017] The lead liquid insulation tank is equipped with a liquid level alarm.

[0018] The lead liquid conveying pipe, the lead liquid insulation tank, the upper half of the lead liquid cooling and forming device and the pressure relief overflow pipe are all provided with a thermal insulation layer.

[0019] The lead liquid cooling former is made of copper material with good thermal conductivity.

[0020] The lead billet forming tool of the utility model, when working normally, the lead liquid insulation tank is in a closed state, reducing the contact with the outside air, which can effectively reduce the oxidation of the lead liquid during the forming process, and can also reduce the transmission of the lead liquid temperature to the outside world. The lead liquid insulation effect is better, which is conducive to saving energy consumption. The lead liquid cooling former of the utility model uses copper material with good thermal conductivity. The lower half of the former is immersed in the cooling water of the cooling water tank, and the outlet of the cooling water tank surrounds the outer wall of the lower half of the former, which fully guarantees the cooling effect during the lead billet forming. In addition, the equipment of the utility model has a simple structure and is easy to operate, which can reduce the equipment investment cost and maintenance cost. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a schematic diagram of the structure of the utility model;

[0022] Figure 2It is a schematic diagram of the structure of the cooling water tank;

[0023] In the figure: 1-lead liquid conveying pipe; 2-lead liquid insulation tank; 3-lead liquid cooling molder; 4-cooling water tank; 5-liquid level alarm; 6-pressure relief overflow pipe; 7-electric heater; 8-traction wheel; 9-lead billet; 11-water outlet. DETAILED DESCRIPTION

[0024] 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.

[0025] See also Figure 1 and Figure 2The utility model provides a lead blank forming tool for lead-acid storage batteries, which includes a lead liquid conveying pipe 1, a lead liquid insulation tank 2, a lead liquid cooling former 3, a cooling water tank 4, etc. The lead liquid conveying pipe 1 conveys the lead liquid from the lead pot to the lead liquid insulation tank 2, the lead liquid conveying pipe 1 is connected to the feed pump in the lead pot, a liquid level alarm 5 is installed on the lead liquid insulation tank 2, an overflow port is connected to a pressure relief overflow pipe 6 at the top of the side of the lead liquid insulation tank 2, and a pressure relief overflow pipe 6 is connected to the overflow port on the side of the lead liquid insulation tank 2. The pressure relief overflow pipe 6 is connected back to the lead pot. This method can make the pressure in the lead liquid insulation tank 2 consistent with the pressure in the lead pot, and the excess lead liquid returns to the lead pot through the pressure relief overflow pipe 6. An electric heater 7 is provided at the bottom of the lead liquid insulation tank 2. The outer layers of the lead liquid conveying pipe 1, the lead liquid insulation tank 2, and the pressure relief overflow pipe 6 are all thermal insulation layers. The lead liquid cooling former 3 is connected to the bottom of the lead liquid insulation tank 2. The middle part of the lead liquid cooling former 3 has an inner cavity for molding, and the inner cavity is connected to the discharge port at the bottom of the lead liquid insulation tank 2. The lead liquid cooling former 3 is divided into two parts, the upper half of the lead liquid cooling former 3 is covered with a thermal insulation layer, and the lower half of the lead liquid cooling former 3 is immersed in the cooling water in the cooling water tank 4. The outlet of the lower half of the lead liquid cooling former 3 is flush with or slightly lower than the lower end of the water outlet 11 of the cooling water tank 4 in the horizontal direction. The outlet of the cooling water tank 4 is a funnel-shaped structure with a large upper part and a small lower part. The outlet 11 of the cooling water tank 4 and the outer wall of the lower half of the former are left with an appropriate gap as a cooling water outflow channel. There are two traction wheels 8 below the cooling water tank 4. The two traction wheels 8 are arranged side by side horizontally, and the lead blank 9 cooled and solidified from the lead liquid cooling former 3 is driven forward by the traction wheels 8. The lead liquid insulation tank 2 and the cooling water tank 4 are both supported by a frame machine (not shown in the figure), one end of one traction wheel 8 is connected to the frame via a bearing, and the other end is connected to the output shaft of the motor mounted on the frame to achieve rotation, and both ends of the other traction wheel 8 are connected to the frame via bearings. The frame is a conventional structure, which is a prior art and does not belong to the focus of this application.

[0026] Before starting production, a piece of lead blank is used to block the outlet of the cooling former 3. The lower end of the lead blank is clamped by two traction wheels. After production, the lead liquid in the cooling former 3 will be cooled and formed into a whole with the lead blank. The traction wheel can rotate to bring out the formed lead blank.

[0027] During production, cooling water is first introduced into the cooling water tank 4 through a water pump and a hose, and the cooling water flows out from the water outlet 11. The cooling water inflow flow rate is greater than or equal to the cooling water outflow flow rate, ensuring that the water surface of the cooling water tank is stable, and excess cooling water can overflow from the upper end of the cooling water tank 4. Then the traction wheel 8 is turned on and starts to rotate, and then the lead liquid is pumped from the lead pot into the lead liquid delivery pipe 1 and transported to the lead liquid insulation tank 2, and the electric heater 7 is turned on to keep the lead liquid temperature within the set temperature range (the temperature is preferably controlled at 500-600°C). The lead liquid flows from the lead liquid insulation tank 2 into the lead liquid cooling former 3, and the lower half of the lead liquid cooling former 3 is immersed in the cooling water in the cooling water tank 4. The liquid cooling former 4 is made of copper material with good thermal conductivity, and the lower half of the lead liquid cooling former 3 is completely immersed in the cooling water. When the lead liquid reaches this position, it will be quickly cooled to form a lead billet 9. The lead billet 9 is driven forward by the traction wheel 8 and starts continuous production.

[0028] 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 lead blank forming tool for lead-acid batteries, characterized in that: include: A closed lead liquid insulation tank (2), one end of which is connected to a lead liquid conveying pipe (1), and a discharge port is provided at the lower end of the lead liquid insulation tank (2); A cooling water trough (4), the cooling water trough (4) being arranged below the lead liquid insulation tank (2), and having a water outlet (11) in the middle of the cooling water trough (4); Traction wheels (8), the number of the traction wheels (8) being two and arranged side by side below the water outlet (11) in the middle of the cooling water tank; A lead liquid cooling and forming device (3), wherein the upper end of the lead liquid cooling and forming device (3) is fixed to the bottom of the lead liquid insulation tank (2), and the lower end is inserted into a water outlet (11) in the middle of the cooling water tank (4), and the lower end of the lead liquid cooling and forming device (3) is not higher than the horizontal height of the lower end of the water outlet; The lead liquid cooling and molding device (3) has an inner cavity for molding in the middle, and the inner cavity is connected to the bottom discharge port of the lead liquid insulation tank (2).

2. A lead-acid battery lead blank forming tool according to claim 1, characterized in that: The water outlet of the cooling water trough (4) is a funnel-shaped structure that is larger at the top and smaller at the bottom, and a gap is left between the lower end of the water outlet and the lower end of the lead liquid cooling former (3) for cooling water to flow out.

3. A lead-acid battery lead blank forming tool according to claim 1, characterized in that: The upper end surface of the cooling water trough (4) is flush with the middle of the lead liquid cooling former (3).

4. A lead-acid battery lead blank forming tool according to claim 1, characterized in that: An overflow port is provided in the upper middle portion of the lead liquid insulation tank (2), and the overflow port is connected to the lead pot via a pressure relief overflow pipe (6).

5. The lead blank forming tool for lead-acid batteries according to claim 1, characterized in that: An electric heater (7) is provided inside the lead liquid insulation tank (2).

6. A lead-acid battery lead blank forming tool according to claim 1, characterized in that: The lead liquid insulation tank (2) is equipped with a liquid level alarm (5).

7. A lead-acid battery lead blank forming tool according to claim 1, characterized in that: The lead liquid conveying pipe (1), the lead liquid insulation tank (2), the upper half of the lead liquid cooling and forming device (3) and the pressure relief overflow pipe (6) are all provided with a heat insulation layer.

8. The lead blank forming tool for lead-acid batteries according to claim 1, characterized in that: The lead liquid cooling former (3) is made of copper material.

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