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Clean and efficient processing method for recycled lead paste

A processing method and technology for regenerating lead, which are applied in separation methods, chemical instruments and methods, and dispersed particle separation, etc., can solve the problems of low utilization rate and high energy consumption, and achieve low equipment and plant costs, low investment in infrastructure, green and high efficiency. The effect of recycling

Active Publication Date: 2018-04-20
刘振
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The pyro-smelting process will produce secondary pollutants such as lead dust and sulfur dioxide during the heating process, and the energy consumption is high and the utilization rate is low

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] A clean and efficient processing method for regenerated lead paste includes the following process steps:

[0024] (1) Send the regenerated desulfurization lead paste into the reactor, and mix the regenerated desulfurization lead paste and the dissolving solution into a slurry with a mass fraction of 25%-35%; make the lead paste intensively move in the reactor and be fully fused with water , Solve the problem of lead paste precipitation;

[0025] (2) Use a mortar pump to drive the slurry in step (1) into the plate and frame filter to separate the solution, and use a large-head pump to drive the quantitative solution into the plate and frame filter for 10-15 minutes;

[0026] (3) Return the clear liquid finally separated in step (2) to step (1) as the dissolving liquid, and the lead paste obtained in the plate and frame filter is used for smelting regeneration;

[0027] (4) Use the negative pressure adsorption system to suck the gas generated in the circulation process into the p...

Embodiment 2

[0030] A clean and efficient processing method for regenerated lead paste includes the following process steps:

[0031] (1) Send the regenerated desulfurization lead paste into the reactor, and mix the regenerated desulfurization lead paste and the dissolving solution into a slurry with a mass fraction of 25%-35%; make the lead paste intensively move in the reactor and be fully fused with water , Solve the problem of lead paste precipitation;

[0032] (2) Use a mortar pump to drive the slurry in step (1) into the plate and frame filter to separate the solution, and use a large-head pump to drive the quantitative solution into the plate and frame filter for 10-15 minutes;

[0033] (3) Return the clear liquid finally separated in step (2) to step (1) as the dissolving liquid, and the lead paste obtained in the plate and frame filter is used for smelting regeneration;

[0034] (4) Use the negative pressure adsorption system to suck the gas generated in the circulation process into the p...

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Abstract

The invention discloses a high-efficient cleaning and processing method of regeneration diachylon. The method includes technical steps of (1), delivering regeneration desulfuration diachylon to a reaction kettle, adding dissolving liquid to the regeneration desulfuration diachylon and preparing to be 25-35% by mass of ore pulp; (2), driving the ore pulp to a plate frame type filter by a mortar pump, separating and obtaining solution; filling fixed quantity of solution to the plate frame type filter by a big lift pump, and circulating for 10-15 minutes; (3), returning the clear liquid separated at last to step (1) and using it as the dissolving liquid; applying the diachylon acquired in the plate frame filter to smelt and regenerate; (4), sucking gas generated during the circulating process to a purifier by a negative pressure absorbing system, and absorbing and reusing the fluid absorbing agent in the purifier. Compared with the advanced regeneration diachylon recycling process at home and abroad, the method is low in both equipment and factory costs and low in investment of capital construction; tail gas is absorbed through liquid, the tail gas can be recycled to achieve no pollution emission and green and high-efficient recycle.

Description

Technical field [0001] The invention relates to the technical field of regenerated lead, in particular to a clean and efficient processing method of regenerated lead paste. Background technique [0002] Despite the continuous development of various new battery technologies today, lead-acid batteries with a development history of more than 150 years still rely on their excellent cost performance, stable electrochemical performance, mature production technology and higher recycling of waste products. Occupy the first place in the secondary battery market. The continuous increase in annual output not only represents the importance of lead-acid batteries to humans, but also means that a large amount of lead is consumed in lead-acid battery products every year. [0003] As a major consumer product in the world, lead-acid batteries have also become the most important lead renewable resource. More than 80% of China's main raw materials for recycled lead come from used lead-acid batterie...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C22B7/00C22B13/00B01D53/14
CPCB01D53/14B01D53/1418B01D2252/103B01D2252/20B01D2252/504C22B7/006C22B13/045
Inventor 刘振
Owner 刘振
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