Ceramsite fired by doping high-silicon iron tailings and preparation method thereof

A technology of high-silicon iron tailings and ceramsite, which is applied to clay products, ceramic products, and other household appliances, can solve problems such as impacting the environment and hazards, and achieve the goals of reducing firing temperature, ensuring durability, and increasing fluidity Effect

Pending Publication Date: 2021-05-18
SHENYANG POLYTECHNIC UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

A lot of garbage is untreated, piled up or incinerated at will, which not

Method used

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  • Ceramsite fired by doping high-silicon iron tailings and preparation method thereof

Examples

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Effect test

Embodiment 1

[0051] A method for preparing ceramsite by using a high-silicon iron tailings firing process, the steps are as follows.

[0052] 1) Raw material pretreatment: Clean up sundries, mix and grind the raw materials in proportion, pass through a 100-mesh standard sieve, and put the materials in a dry place to dry to keep the moisture content at 10%-15%. 2) Ingredients: in parts by mass, 60 parts of high-silicon iron tailings, 15 parts of red mud, 12 parts of montmorillonite, 5 parts of pulverized coal, and 8 parts of kitchen waste. Mix the raw materials accurately according to the ratio. 3) Granulation: Mix and stir the raw materials for 5 minutes, add the mixed raw materials into the granulator, add an appropriate amount of water to humidify during the startup of the equipment, adjust the speed and inclination to roll the raw materials until they are formed, and screen out the granules with a sieve Raw balls with a diameter in the range of 15mm-20mm. 4) Drying: In order to ensure...

Embodiment 2

[0055] A method for preparing ceramsite by using a high-silicon iron tailings firing process, the steps are as follows.

[0056] 1) Raw material pretreatment: Clean up sundries, mix and grind the raw materials in proportion, pass through a 100-mesh standard sieve, and put the materials in a dry place to dry to keep the moisture content at 10%-15%. 2) Ingredients: in parts by mass, 65 parts of high-silicon iron tailings, 12 parts of red mud, 8 parts of montmorillonite, 7 parts of pulverized coal, and 8 parts of kitchen waste. Accurately weigh and mix the raw materials according to the ratio. 3) Granulation: Mix and stir the raw materials for 5 minutes, add the mixed raw materials into the granulator, add an appropriate amount of water to humidify during the startup of the equipment, adjust the speed and inclination to roll the raw materials until they are formed, and screen out the granules with a sieve Raw balls with a diameter in the range of 15mm-20mm. 4) Drying: In order ...

Embodiment 3

[0059] A method for preparing ceramsite by using a high-silicon iron tailings firing process, the steps are as follows.

[0060] 1) Raw material pretreatment: Clean up sundries, mix and grind the raw materials in proportion, pass through a 100-mesh standard sieve, and put the materials in a dry place to dry to keep the moisture content at 10%-15%. 2) Ingredients: in parts by mass, 70 parts of high-silicon iron tailings, 10 parts of red mud, 7 parts of montmorillonite, 8 parts of coal powder, and 5 parts of kitchen waste. Accurately weigh and mix the raw materials according to the ratio. 3) Granulation: Mix and stir the raw materials for 5 minutes, add the mixed raw materials into the granulator, add an appropriate amount of water to humidify during the startup of the equipment, adjust the speed and inclination to roll the raw materials until they are formed, and screen out the granules with a sieve Raw balls with a diameter in the range of 15mm-20mm. 4) Drying: In order to e...

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Abstract

The invention belongs to the field of comprehensive utilization of building materials and solid wastes, and particularly relates to a method for firing ceramsite by doping high silicon iron tailings and other solid wastes. The invention relates to ceramsite fired by doping high-silicon iron tailings, wherein the ceramsite is prepared from the following raw materials in parts by mass: 60-70 parts of high-silicon iron tailings, 10-15 parts of red mud, 5-12 parts of montmorillonite, 5-8 parts of pulverized coal and 5-10 parts of kitchen garbage. Various performance index values of the ceramsite prepared only in the north provided by the invention meet the standard requirements of GBT17431.1-2010 "Lightweight Aggregate and Test Method Thereof". According to the invention, in the ceramsite doped with the high-silicon iron tailings for firing, the high-silicon iron tailings are used as main raw materials; so that from the perspective of treatment of a large amount of solid waste, the problem that a large amount of tailings are accumulated is efficiently solved, solid waste resource utilization is achieved, waste is turned into wealth, and the influence of the solid waste such as the tailings on the environment is reduced. The technical scheme has certain ecological benefits and social benefits.

Description

technical field [0001] The invention belongs to the field of comprehensive utilization of building materials and solid waste, and in particular relates to a method for firing ceramsite by mixing solid waste such as high-silicon iron tailings. Background technique [0002] The total number of existing mines in China has reached 200,000, and the total stockpile is nearly 10 billion tons. During the development of mineral resources, a large number of tailings will appear, and the annual output of tailings is as high as 1.2 billion tons. Compared with a large amount of tailings output and storage, the comprehensive utilization rate of tailings resources in my country is less than 10%. It not only destroys the vegetation on the ground, causes environmental pollution, but also occupies a large amount of agricultural land, reduces the efficiency of land use, and causes many potential safety hazards. How to use a large amount of solid waste such as iron tailings to achieve the purpo...

Claims

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Application Information

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IPC IPC(8): C04B38/06C04B38/00C04B33/132C04B33/138
CPCC04B33/132C04B33/1322C04B33/138C04B38/0022C04B38/009C04B38/0645Y02P40/60
Inventor 宁宝宽那芳溪顾晓薇张文馨苏文轩刘朋
Owner SHENYANG POLYTECHNIC UNIV
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