A Consolidation Material Used for Stabilization Treatment of Electrolytic Manganese Slag and Its Application

A technology of stabilization treatment and electrolysis of manganese slag, which is applied in the field of solid waste resource utilization, can solve the problems of high production cost and poor consolidation effect of manganese slag, and achieve the effect of reducing production cost, good curing effect and low cost

Active Publication Date: 2021-10-12
肇庆市珈旺环境技术研究院
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In view of the problems in the prior art that the production cost of the electrolytic manganese slag consolidation material is high, and the consolidation effect on the extremely fine manganese slag is poor, resulting in the current situation that the manganese slag is still mainly stored naturally, the first method of the present invention The purpose is to provide a consolidation material with a good consolidation effect on electrolytic manganese slag and a high consolidation ratio. The consolidation material uses cheap electrolytic manganese slag as the main raw material, which can not only obtain excellent consolidation performance, but also can Resource utilization of electrolytic manganese slag reduces the production cost of consolidation materials, which has good industrial prospects and great social significance

Method used

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  • A Consolidation Material Used for Stabilization Treatment of Electrolytic Manganese Slag and Its Application
  • A Consolidation Material Used for Stabilization Treatment of Electrolytic Manganese Slag and Its Application
  • A Consolidation Material Used for Stabilization Treatment of Electrolytic Manganese Slag and Its Application

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0035] Preparation of activated electrolytic manganese slag: electrolytic manganese slag and 0.5% NaOH are activated by ball milling-chemical excitation, the ball mill adopts a vertical planetary ball mill, the revolution speed is 250r / min, the autopropagation speed is 60r / min, the ball-to-material ratio is 6:1, and the ball mill is chemically activated The time is 20-60 minutes.

[0036] The mechanically activated electrolytic manganese slag was ball-milled in batches for 20, 40 and 60 minutes.

[0037] According to the activated electrolytic manganese slag: cement clinker: lime: blast furnace slag 40:10:3:47 (mass ratio), mix evenly, and prepare a clean slurry sample of 20mm×20mm×20mm under the condition of water-cement ratio 0.4 (mass ratio) After 7 days of curing in a constant temperature curing box, the impact of mechanical activation time on the properties of the consolidated material was judged by its compressive strength. The analysis results are shown in Table 3.

[...

Embodiment 2

[0042] According to the results of Example 1, the electrolytic manganese slag with a ball milling time of 20 minutes was selected, and different chemical activators were used for chemical excitation research. The chemical activators were added to 0.5% of the mass of the electrolytic manganese slag according to the external mixing method. According to the activated electrolytic manganese slag: cement clinker: lime: blast furnace slag 40:10:3:47 (mass ratio), mix evenly, and prepare a 20mm×20mm×20mm net under the condition of water-cement ratio 0.4 (mass ratio) After the slurry sample was placed in a constant temperature curing box for 7 days, the impact of the chemical activator on the properties of the consolidated material was judged by its compressive strength. The analysis results are shown in Table 4.

[0043] Table 4 The excitation effect of different kinds of chemical stimulants

[0044] stimulant 7d compressive strength / MPa Na 2 CO 3

[0045] It can...

Embodiment 3

[0047] According to the results of Example 2, the electrolytic manganese slag with a ball milling time of 20 min was selected, and sodium hydroxide was used as the activator to study the activating effect of different contents of the activator. According to the activated electrolytic manganese slag: cement clinker: lime: blast furnace slag 40:10:3:47 (mass ratio), mix evenly, and prepare a 20mm×20mm×20mm clean slurry sample under the condition of water-cement ratio 0.4. After 7 days of curing in the constant temperature curing box, the impact of the chemical activator on the performance of the consolidated material was judged by its compressive strength. The analysis results are shown in Table 5.

[0048] The influence of table 5 sodium hydroxide content on excitation effect

[0049]

[0050] It can be seen from Table 5 that the excitation effect of different contents of sodium hydroxide on the consolidated material is quite different. When the mass fraction of sodium hydro...

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Abstract

The invention discloses a consolidation material for stabilizing electrolytic manganese slag and its application. The consolidation material includes cement clinker, blast furnace slag, lime and activated electrolytic manganese slag. The consolidation material has better solidification The ability to bind electrolytic manganese slag, and the cost of raw materials is low, not only realizes the resource utilization of solid waste electrolytic manganese slag, but also can greatly reduce the production cost of consolidation materials, which can be widely used in electrolytic manganese slag Consolidation and filling have good industrial prospects and great social significance.

Description

technical field [0001] The invention relates to an electrolytic manganese slag consolidation material and its application, in particular to the use of primary electrolytic manganese slag through mechanical-chemical activation to make a consolidation material with raw materials such as cement clinker, blast furnace slag and lime, and then use the consolidation material A method for efficiently fixing primary electrolytic manganese slag by materials belongs to the field of resource utilization of solid waste. Background technique [0002] Electrolytic manganese slag is solid waste produced in the process of industrial electrolytic manganese production. Manganese ore is processed by beneficiation, crushing, powder, acid leaching, pH adjustment, and solid waste produced by plate and frame pressure filtration. my country is rich in manganese resources, but the grade range of manganese ore is relatively wide. With the rapid consumption of rich ore, the grade of manganese ore is re...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C04B28/12C04B20/02
CPCC04B20/026C04B28/12C04B18/141C04B7/00C04B20/023
Inventor 侯浩波李嘉豪梁安娜李政家雷杰妮何雯婧
Owner 肇庆市珈旺环境技术研究院
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