Storage battery lead-calcium alloy deslagging agent formula and preparation method thereof

Abstract

The invention provides a storage battery lead-calcium alloy deslagging agent formula and a preparation method thereof, relates to the technical field of storage battery manufacturing, and aims to solve the problems that a lead furnace needs to be used in multiple procedures during storage battery production and manufacturing, and lead slag formed after lead or lead-calcium alloy in the lead furnace is oxidized can cause raw material waste and solid pollution. Lead in the lead slag can be recycled by using a proper slag remover. The formula comprises the following raw materials in parts by mass: 4-6 parts of coke powder, 2-3 parts of graphite powder, 0.1-1 part of activated carbon, 3-4 parts of sodium lignin sulfonate, 1-2 parts of lead stearate, 1-2 parts of quartz stone powder and 2-3 parts of limestone powder. When a lead furnace runs, lead slag floats on the surface of a lead pool, lead in the lead slag can be recycled by pouring the deslagging agent of the formula on the lead slag and stirring at high temperature, the oxidation speed of calcium, tin and aluminum in alloy is reduced, the components of the lead slag are changed, the amount of the lead slag is reduced, solid pollutants are reduced, and enterprise cost and environmental protection pressure are reduced.

Description

Technical Field

[0001] The invention belongs to the field of battery manufacturing, and in particular relates to a formula of a lead-calcium alloy slag remover for batteries and a configuration method thereof. Background Art

[0002] In the manufacturing of batteries, grid casting, pole group welding, terminal casting and other processes all use cast welding technology, that is, the high-temperature lead or lead alloy liquid in the lead furnace flows into the mold cavity to cool, and the molded lead products are obtained after cooling. The temperature of the lead or lead alloy lead furnace is 440~500℃. At high temperatures, lead and lead alloys are easily oxidized by oxygen into lead oxide and float on the surface of the lead pool. The melting point of lead oxide is as high as 886℃, and it will not dissolve in liquid lead. Lead oxide will wrap the metal lead and form hard lumps on the surface of the lead pool, interfering with the equipment's lead removal and lead pouring operations. Therefore, it is necessary to regularly slag and remove slag to maintain the operation of the lead furnace. If a suitable slag remover is used to powder the lead slag and recover the lead in the lead oxide, it can effectively reduce production costs and reduce solid pollutant emissions. Because there are many types of lead alloys used in battery production, in addition to metallic lead, there are also lead-calcium alloys, lead-antimony alloys, lead-tin alloys, etc., even if the same type of alloy has different internal metal proportions, this formula is only for lead slag recovery of lead and lead-calcium alloys. Summary of the invention

[0003] To achieve the above-mentioned purpose, the technical scheme of the present invention is as follows: a formula for a lead-calcium alloy slag remover for batteries, the formula comprising the following raw materials in mass fractions: 4 to 6 parts of coke powder, 2 to 3 parts of graphite powder, 0.1 to 1 part of activated carbon, 3 to 4 parts of lignin sodium, 1 to 2 parts of lead stearate, 1 to 2 parts of quartz powder, and 2 to 3 parts of limestone powder.

[0004] Based on the above technical solution, when the lead furnace is running, the lead slag will float on the surface of the lead pool. The slag remover of this formula is poured on the lead slag. High-temperature stirring can recover the lead in the lead slag, change the composition of the lead slag, and reduce the amount of lead slag.

[0005] As an improvement of the present invention, the method includes the steps of: selecting 6 parts of coke powder, 2 parts of graphite powder, 1 part of activated carbon, 3 parts of lignin sodium, 1 part of lead stearate, 2 parts of quartz powder, and 3 parts of limestone powder in the formula, sieving all the materials in the formula and dry-mixing them evenly to obtain a slag remover agent, and the slag remover needs to be sealed and dried and stored in a cool place.

[0006] Based on the above technical scheme, the coke powder, graphite powder and activated carbon powder in this formula are used as reducing agents to reduce the lead ions in lead oxide into metallic lead. Sodium lignin and lead stearate as surfactants can destroy the surface tension of lead liquid and improve the efficiency of lead oxide reduction. Quartz powder and limestone powder as slagging agents can reduce the repeated oxidation of lead in the lead pool. The slag remover of this formula can reduce the lead slag output of lead or lead-calcium alloy lead pool in battery enterprises at a low cost, improve the utilization rate of lead, and effectively achieve the purpose of cost reduction and environmental protection.

[0007] As an improvement of the present invention, the obtained slag remover is mixed and stirred with lead slag, and the usage amount accounts for 4-6% of the weight of the lead slag.

[0008] As an improvement of the present invention, the coke powder, sodium lignin and lead stearate are all screened through 60 mesh.

[0009] As an improvement of the present invention, the graphite powder, quartz powder and limestone powder are all screened through 80 mesh.

[0010] As an improvement of the present invention, the activated carbon is screened through 100 mesh.

[0011] As an improvement of the present invention, during slag removal, the temperature of the lead furnace is raised to 460-520°C, the lead slag is stirred and a slag remover is continuously added, and changes in appearance are observed. The volume of the lead slag is continuously reduced, and the color changes from light grayish yellow to dark gray. If there is no more change, the addition of the slag remover is stopped.

[0012] Compared with the prior art, the beneficial effects of the present invention are: The present invention proposes a formula for a lead (lead-calcium alloy) slag remover for storage batteries and a method for preparing the same. In the production of storage batteries, multiple processes require the use of a lead furnace. The lead slag formed after the lead or lead-calcium alloy in the lead furnace is oxidized will lead to a waste of raw materials and solid pollution. The use of a suitable slag remover can recover the lead in the lead slag, reduce the oxidation rate of calcium, tin and aluminum in the alloy, reduce solid pollutants, and reduce enterprise costs and environmental pressure.

[0013] This formula contains the following raw materials by mass fraction: 4-6 parts of coke powder, 2-3 parts of graphite powder, 0.1-1 parts of activated carbon, 3-4 parts of lignin sodium, 1-2 parts of lead stearate, 1-2 parts of quartz powder, and 2-3 parts of limestone powder. When the lead furnace is running, the lead slag will float on the surface of the lead pool. Pour the slag remover of this formula on the lead slag, and high-temperature stirring can recover the lead in the lead slag, change the composition of the lead slag, and reduce the amount of lead slag.

[0014] In this formula, coke powder, graphite powder and activated carbon powder are used as reducing agents to reduce lead ions in lead oxide into metallic lead. Sodium lignin and lead stearate are used as surfactants to destroy the surface tension of lead liquid and improve the efficiency of lead oxide reduction. Quartz powder and limestone powder are used as slag-forming agents to reduce the repeated oxidation of lead in the lead pool. The slag remover of this formula can reduce the lead slag output of lead or lead-calcium alloy lead pool in battery enterprises at a low cost, improve the utilization rate of lead, and effectively achieve the purpose of cost reduction and environmental protection. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 A flow chart of the configuration method of the present invention; Figure 2 This is a comparison chart of the effects of using the slag remover in the present invention. DETAILED DESCRIPTION

[0016] The present invention will be further explained below in conjunction with the accompanying drawings and specific embodiments. It should be understood that the following specific embodiments are only used to illustrate the present invention and are not used to limit the scope of the present invention.

[0017] Example: Figure 1 As shown, this embodiment provides a simple lead furnace slag remover formula and a method for its configuration. In the first aspect, a lead furnace slag remover formula is provided, comprising the following parts by weight: 4-6 parts of coke powder; 2~3 parts of graphite powder; 0.5~1 part of activated carbon; 2~3 parts of sodium lignin; Lead stearate 1-2 parts; 1~2 parts of quartz powder; 2~3 parts of limestone powder; After optimization under this formula, the mass parts are: 6 parts of coke powder; 2 parts of graphite powder; 1 part of activated carbon; 3 parts of sodium lignin; 1 part of lead stearate; 2 parts of quartz powder; 3 parts limestone powder; Furthermore, the present invention provides a preparation process of a lead furnace slag remover, the steps of which are as follows: ① Coke powder is screened with 60 mesh; ② Graphite powder is screened with 80 mesh; ③ Activated carbon is screened with 100 mesh; ④ Screen the sodium lignin with 60 mesh; ⑤ Lead stearate is screened with 60 mesh; ⑥ Quartz powder is screened with 80 mesh; ⑦ Limestone powder needs to be screened with 80 mesh; ⑧ Mix the formula powder evenly and store it in a sealed container in a cool and dry place.

[0018] When removing slag, raise the temperature of the lead furnace to 460~520℃, stir the lead slag and continuously add slag remover, observe the appearance change, the volume of the lead slag continues to shrink, and the color changes from light gray yellow to dark gray. If there is no change, stop adding slag remover. Use a colander to scoop out the remaining waste slag, leaving a small amount of waste slag to cover the lead pool, which can keep warm and isolate oxygen.

[0019] The deslagging agent configured in this embodiment has simple raw materials and is easy to configure. The deslagging work can be completed when the lead (lead-calcium alloy) furnace is running without affecting production. If 5-7 kg of deslagging agent is added per ton of lead slag, the slag production rate of the lead furnace can be reduced from 3%-5% to 2%-2.8%, effectively reducing lead loss, reducing production lead costs, and reducing solid pollution.

[0020] After using this slag removal agent, the slag production rate decreased by 21.2%, and the alloy composition in the lead furnace increased effectively, mainly because the environment in the lead pool where metals are oxidized was improved and reduced. Figure 2 shown.

[0021] It should be noted that the above content only illustrates the technical idea of ​​the present invention and cannot be used to limit the protection scope of the present invention. For ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principle of the present invention. These improvements and modifications all fall within the protection scope of the claims of the present invention.

Claims

1. A battery lead-calcium alloy slag remover formula, characterized in that: The formula includes the following raw materials in mass fractions: 4-6 parts of coke powder, 2-3 parts of graphite powder, 0.1-1 parts of activated carbon, 3-4 parts of lignin sodium, 1-2 parts of lead stearate, 1-2 parts of quartz powder, and 2-3 parts of limestone powder.

2. The method for preparing the lead-calcium alloy slag remover for batteries according to claim 1, characterized in that: The method comprises the steps of: selecting 6 parts of coke powder, 2 parts of graphite powder, 1 part of activated carbon, 3 parts of lignin sodium, 1 part of lead stearate, 2 parts of quartz powder and 3 parts of limestone powder from the formula, sieving all the materials in the formula and dry-mixing them evenly to obtain a slag removal agent.

3. The method for preparing a lead-calcium alloy slag remover for batteries according to claim 2, characterized in that: The obtained slag remover is mixed and stirred with the lead slag, and the usage amount accounts for 4-6% of the weight of the lead slag.

4. The method for preparing a lead-calcium alloy slag remover for batteries according to claim 2, characterized in that: The coke powder, sodium lignin and lead stearate are all screened through 60 mesh.

5. The method for preparing a lead-calcium alloy slag remover for batteries according to claim 2, characterized in that: The graphite powder, quartz powder and limestone powder are all screened through 80 mesh.

6. The method for preparing a lead-calcium alloy slag remover for batteries according to claim 2, characterized in that: The activated carbon was screened through 100 mesh.

7. The method for preparing a lead-calcium alloy slag remover for batteries according to claim 2, characterized in that: When removing slag, raise the temperature of the lead furnace to 460~520℃, stir the lead slag and continuously add the slag remover, observe the changes in appearance, the volume of the lead slag continues to shrink, and the color changes from light gray-yellow to dark gray. If there is no more change, stop adding the slag remover.

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