High-efficient cleaning and processing method of regeneration diachylon

A processing method and a technology of regenerated lead, which are applied in separation methods, chemical instruments and methods, and separation of dispersed particles, can solve the problems of high energy consumption and low utilization rate, and achieve low equipment and plant costs, low infrastructure investment, and no Effects of Pollutant Emissions

Active Publication Date: 2017-05-10
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 recycled lead paste, comprising the following process steps:

[0024] (1) Send the regenerated desulfurized lead paste into the reactor, add the regenerated desulfurized lead paste and the solution to form a slurry with a mass fraction of 25%-35%; make the lead paste move strongly in the reactor, and fully dissolve it with water , to solve the problem of lead paste precipitation;

[0025] (2) Put the ore slurry in the step (1) into the plate-and-frame filter with a mortar pump, separate and obtain the solution, and then use a large-lift pump to inject the quantitative solution into the plate-and-frame filter, and circulate for 10-15 minutes;

[0026] (3) return the clear liquid separated at last in the step (2) to use as a solution in the step (1), 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 into the purif...

Embodiment 2

[0030] A clean and efficient processing method for recycled lead paste, comprising the following process steps:

[0031] (1) Send the regenerated desulfurized lead paste into the reactor, add the regenerated desulfurized lead paste and the solution to form a slurry with a mass fraction of 25%-35%; make the lead paste move strongly in the reactor, and fully dissolve it with water , to solve the problem of lead paste precipitation;

[0032] (2) Put the ore slurry in the step (1) into the plate-and-frame filter with a mortar pump, separate and obtain the solution, and then use a large-lift pump to inject the quantitative solution into the plate-and-frame filter, and circulate for 10-15 minutes;

[0033] (3) return the clear liquid separated at last in the step (2) to use as a solution in the step (1), 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 into the purif...

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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 recycled lead, in particular to a clean and efficient processing method for recycled lead paste. Background technique [0002] Despite the continuous development of various new battery technologies today, the lead-acid battery with a history of more than 150 years is still in the secondary market due to its excellent cost performance, stable electrochemical performance, mature production technology and high recycling of waste products. No. 1 in the secondary battery market. The continuous growth of annual output not only represents the importance of lead-acid batteries to human beings, 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 resources. More than 80% of the main raw materials for secondary lead in China come from waste lead-acid...

Claims

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Application Information

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Patent Type & Authority Applications(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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