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Method for purifying lead liquid through dross removing agent

A technology of slag agent and lead liquid is applied in the field of using slag remover to purify lead liquid, which can solve the problems of unfavorable cost control, quality improvement, and high slag rate of lead-containing alloy products, so as to reduce labor intensity of workers and improve comprehensive performance. Recovery rate and cost reduction effect

Inactive Publication Date: 2018-02-06
江西金洋金属股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] When aluminum alloy is smelted, due to the reaction between aluminum and water or oxygen in the air, harmful gases or solid particles will be produced. Such aluminum liquid will produce a series of quality problems such as pores, knives, and slag during deep processing and casting. Therefore, the molten aluminum must be refined and purified. The existing technology is to add rosin to the electric lead, refined lead or ear lead to make slag before the furnace. The amount of slag ash produced, the lead content of slag ash and the slag rate when alloy products are used are relatively high, which is not conducive to cost control and quality improvement

Method used

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  • Method for purifying lead liquid through dross removing agent

Examples

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Comparison scheme
Effect test

Embodiment 1

[0023] Embodiment 1: a kind of method that adopts slag remover to purify lead liquid, it is used for electric lead, refined lead and tab lead impurity removal, and it carries out according to the following steps:

[0024] Step 1: Put the raw materials of electric lead, refined lead or tab lead into the boiler, heat up to 420°C after melting;

[0025] Step 2: Weigh the slag remover according to the ratio of adding 0.6 kg of slag remover to 1 ton of lead;

[0026] Step 3: Sprinkle the slag removal agent weighed in Step 2 evenly on the surface of the melted lead liquid in Step 1, and keep the temperature stable at 420°C;

[0027] Step 4: Add the mixer to the boiler in step 3, start the mixer, and stir for 20 minutes;

[0028] Step 5: Observe the state of scum in step 4. If it is observed that the scum gradually disperses and changes from paste to gray, stop stirring when the scum turns to khaki, and pick up the gray scum. If the slag is not earthy yellow or ash-like, and the sl...

Embodiment 2

[0030] Embodiment 2: a kind of method that adopts slag removing agent to purify lead liquid, it is used for electric lead, refined lead and tab lead impurity removal, and it carries out according to the following steps:

[0031] Step 1: Put the raw materials of electric lead, refined lead or tab lead into the boiler, heat up to 460°C after melting;

[0032] Step 2: Weigh the slag remover according to the ratio of adding 0.8 kg of slag remover to 1 ton of lead;

[0033] Step 3: Sprinkle the slag removal agent weighed in Step 2 evenly on the surface of the melted lead liquid in Step 1, and keep the temperature stable at 460°C;

[0034] Step 4: Add the mixer to the boiler in step 3, start the mixer, and stir for 30 minutes;

[0035] Step 5: Observe the state of scum in step 4. If it is observed that the scum gradually disperses and changes from paste to gray, stop stirring when the scum turns to khaki, and pick up the gray scum. If the slag is not earthy yellow or ash-like, and...

Embodiment 3

[0037] Embodiment 3: a kind of method adopting slag removing agent to purify lead liquid, it is used for electric lead, refined lead and tab lead impurity removal, and it carries out according to the following steps:

[0038] Step 1: Put the raw materials of electric lead, refined lead or tab lead into the boiler, heat up to 440°C after melting;

[0039] Step 2: Weigh the slag remover according to the ratio of adding 0.7 kg of slag remover to 1 ton of lead;

[0040] Step 3: Sprinkle the slag removal agent weighed in Step 2 evenly on the surface of the melted lead liquid in Step 1, and keep the temperature stable at 440°C;

[0041] Step 4: Add the mixer to the boiler in step 3, start the mixer, and stir for 25 minutes;

[0042] Step 5: Observe the state of scum in step 4. If it is observed that the scum gradually disperses and changes from paste to gray, stop stirring when the scum turns to khaki, and pick up the gray scum. If the slag is not earthy yellow or ash-like, and th...

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Abstract

The invention discloses a method for purifying lead liquid through a dross removing agent. The raw material including electric lead or refined lead or electrode lug lead is input into a boiler, and the temperature is increased to 420 DEG C to 460 DEG C after melting; the dross removing agent is weighed according to the proportion that 0.6 kg to 0.8 kg of the dross removing agent is added into 1 ton of lead; the dross removing agent is evenly scattered on the surface of the lead liquid; stirring is conducted; and the dross state is observed, if dross is observed to be gradually scattered and becomes ash from paste, stirring is stopped when the dross turns to be earthy yellow, the ash dross is fished out, if the dross does not turn to be earthy yellow or does not become ash and the dross andthe lead are not separated, stirring should to be conducted continuously till the requirement is met. The method has the beneficial effects that the dross ash amount generated during stokehole drossmaking, the lead content of dross ash and the dross rate generated during use of an alloy product are reduced, the lead comprehensive recycling rate is increased, and the repeated smelting cost is reduced; generation of about 1.71% of lead dross can be reduced through dross removing agent dross making compared with rosin dross making; the problem that the temperature cannot be easily controlled during low-temperature dross making, and the dross making effect is not stable is solved; and no smoke is generated.

Description

technical field [0001] The invention relates to a method for purifying liquid lead, in particular to a method for purifying liquid lead by using a slag remover. Background technique [0002] When aluminum alloy is smelted, due to the reaction between aluminum and water or oxygen in the air, harmful gases or solid particles will be produced. Such aluminum liquid will produce a series of quality problems such as pores, knives, and slag during deep processing and casting. Therefore, the molten aluminum must be refined and purified. The existing technology is to add rosin to the electric lead, refined lead or ear lead to make slag before the furnace. The amount of slag ash produced, the lead content of slag ash and the slag rate of alloy products when used are all relatively high, which is not conducive to cost control and quality improvement. Now, slag removal agent is used instead of rosin for furnace slagging to reduce the amount of slag ash produced during furnace slagging,...

Claims

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Application Information

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IPC IPC(8): C22B13/06C22B9/10
CPCC22B13/06C22B9/103
Inventor 王喜安黄守军黄瑞任慧
Owner 江西金洋金属股份有限公司
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