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High-strength and high-porosity thermal-insulation ceramsite prepared by compounding electrolytic manganese residues with coal-series wastes and preparation method thereof

A technology of electrolytic manganese slag and porosity, which is applied to ceramic products, clay products, and other household utensils, etc. It can solve the problems that sulfide will corrode grass roots, complicated operation steps, and lack of access to farmers, so as to improve the water resource environment Pollution problem, simple production process, effect of reducing pollution

Active Publication Date: 2021-08-10
ANHUI UNIV OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] At present, the use of electrolytic manganese slag to recover soluble manganese has good economic value, but the operation steps are complicated, the cost is high, and by-products are produced
Using electrolytic manganese slag as a full-price fertilizer, the effect is not as significant as that of professional chemical fertilizers, and cannot be recognized by farmers, and the sulfide in it will corrode grass roots; using electrolytic manganese slag as a wall material, its soluble substances have not been solidified, and will be in the soil. Yellow-brown stains appear on the wall, affecting the appearance

Method used

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  • High-strength and high-porosity thermal-insulation ceramsite prepared by compounding electrolytic manganese residues with coal-series wastes and preparation method thereof
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  • High-strength and high-porosity thermal-insulation ceramsite prepared by compounding electrolytic manganese residues with coal-series wastes and preparation method thereof

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Effect test

Embodiment 1

[0065] This embodiment prepares thermal insulation ceramsite according to the following steps:

[0066] Step 1. After drying the electrolytic manganese slag block at 105°C for 4 hours, crush it and pass it through a 100-mesh standard sieve to obtain the raw material of electrolytic manganese slag; dry the fly ash at 105°C for 2 hours for later use; pass the sawdust through a standard sieve, and take the average Sawdust with a particle size of <1mm was dried at 105°C for 2 hours and set aside.

[0067] Step 2, according to 100 parts of electrolytic manganese slag, 100 parts of fly ash, 5 parts of sawdust, Na 2 The ratio of S 1 part, the raw material of electrolytic manganese slag, fly ash, sawdust and Na 2 S Mix well.

[0068] Step 3, granulation

[0069] Use the mechanical granulation method to granulate the mixed material obtained in step 2 (using a ZL-500 granulator), and the granulation size is 10mm-15mm to obtain pellets.

[0070] Step 4, drying

[0071] Put the pelle...

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Abstract

The invention discloses a high-strength and high-porosity thermal-insulation ceramsite prepared by compounding electrolytic manganese residues with coal-series wastes and a preparation method thereof. The ceramsite comprises the following raw materials in parts by mass: 100 parts of electrolytic manganese residues; 100 parts of fly ash; 5 parts of sawdust; and 1 part of Na2S. The production process is simple and environment-friendly, the used raw materials are low in cost and rich in source, and the obtained ceramsite has the advantages of high strength, high porosity, high thermal insulation performance and the like, can be widely applied to thermal insulation building walls, thermal insulation mortar, biological environment-friendly adsorption and the like, and has very wide prospects.

Description

technical field [0001] The invention relates to a novel building thermal insulation material, in particular to high-strength and high-porosity thermal-insulation ceramsite prepared by mixing electrolytic manganese slag with coal waste and a preparation method thereof. Background technique [0002] In modern industry, manganese is widely used in iron and steel, chemical, light industry, building materials, defense electronics industry. Especially in the fields of 200 series stainless steel and manganese-lithium batteries, electrolytic manganese has rapidly developed into a huge industry. In my country, manganese carbonate flakes are mainly used as raw materials, and the sulfided manganese sulfate solution is oxidized, neutralized, purified, and electrolyzed to obtain electrolytic manganese and electrolytic manganese slag. [0003] Electrolytic manganese production enterprises in most areas of my country have backward technology, weak awareness of environmental protection, an...

Claims

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Application Information

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IPC IPC(8): C04B38/00C04B33/138C04B33/135C04B33/132C04B33/13
CPCC04B38/009C04B38/0025C04B33/138C04B33/1352C04B33/1328C04B33/131C04B2235/77C04B2235/9607Y02P40/60
Inventor 徐子芳叶东东傅宇豪戴涛周晨
Owner ANHUI UNIV OF SCI & TECH
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