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Solidification treatment process of smelting waste of lead and zinc

A technology for solidification treatment and waste residue, which is applied in sustainable waste treatment, solid waste management, climate sustainability, etc., and can solve problems such as large porosity, anti-solubility, and environmental hazards

Inactive Publication Date: 2013-04-03
SHAANXI UNIV OF TECH
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, there are also some problems that cannot be ignored in the curing of cement: the porosity is large, the volume doubles, and it enters the safe landfill, resulting in waste of storage capacity; Pollution, etc.
[0007] However, the agents used by Wu Shaolin and others are organic matter. As time goes on, the organic matter will decompose, making it lose its ability to chelate harmful ions. Under the action of groundwater, surface water and rainwater, harmful ions will return to the biosphere. harm to the environment again

Method used

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  • Solidification treatment process of smelting waste of lead and zinc
  • Solidification treatment process of smelting waste of lead and zinc
  • Solidification treatment process of smelting waste of lead and zinc

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Embodiment Construction

[0020] A solidification treatment process for lead-zinc smelting waste slag, comprising the following steps:

[0021] (1) Pretreatment of lead-zinc smelting waste residue

[0022] Add surfactant, stabilizer, adsorbent and lime to lead-zinc smelting waste residue, and stir evenly, wherein, the components and addition amount of surfactant, stabilizer, adsorbent and lime refer to Table 1; Table 1 column The formula composition of 10 embodiments numbered 1-10 has been shown.

[0023] (2) Treatment of hydraulic cementitious materials

[0024] Add water reducing agent, active blending material, river sand and water to the hydraulic cementitious material, and mix evenly, wherein, the components of cementitious material, water reducing agent, active blending material, river sand, and water And add-on reference table 2; Table 2 has listed the formula composition of 10 embodiments numbered 1-10. The active kaolin in the active blending material is made by calcining kaolin ore at 600-...

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Abstract

The invention discloses a solidification treatment process of smelting waste of lead and zinc. The solidification treatment process is characterized in that surface active agent, stabilizing agent, adsorbent and lime are added into and mixed uniformly with the smelting waste of lead and zinc; water-reducing agent, active blending material, river sand and water are added into and mixed uniformly with the hydraulic binding material; the pretreated smelting waste of lead and zinc is added into the pretreated hydraulic binding material, placed for 24 hour under room temperature after uniformly stirred and formed, then demoulded and stored in a slag storeroom. The solidification treatment process has the characteristics of good solidification effect, simple process, low cost, easy-to-get raw material, and the like.

Description

technical field [0001] The invention relates to a treatment method for harmful waste residues in the smelting industry, in particular to a treatment method for solidifying lead-zinc smelting waste residues with a hydraulic cementitious material. Background technique [0002] In the past ten years, my country's lead-zinc metallurgy has maintained a momentum of rapid growth. In 2010, the total output of lead-zinc reached 9.581 million tons. my country's lead-zinc metal production has ranked first in the world for many years. With the rapid development of product production capacity, the problem of disposal of various smelting slags in the production process has gradually emerged, which is not only related to the comprehensive recycling of resources, but also has a far-reaching impact on the natural environment. Since lead and zinc mostly exist in the form of mutual association in the mineral primary process, this has formed a general pattern of lead and zinc combination in th...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B28/04C04B28/06C04B28/08C04B18/14
CPCY02W30/91
Inventor 谭宏斌马小玲侯小强郭从盛夏鹏举李雷权王华
Owner SHAANXI UNIV OF TECH
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