Coal gangue lightweight through-hole ceramsite

Abstract

The invention discloses coal gangue lightweight through-hole ceramsite. The technical scheme has the essentials that the coal gangue lightweight through-hole ceramsite is composed of coal gangues, attapulgite clay, a powdery coal gangue foaming agent, active carclazyte waste dreg, hollow microspheres, lightweight magnesium oxide, expanded perlite, expanded vermiculite, ferrous sulfate and quick lime. The materials of the coal gangue lightweight through-hole ceramsite are stirred and mixed, extruded and granulated, dried, roasted, subjected to heat insulation, sieved, sealed and packaged to prepare the coal gangue lightweight through-hole ceramsite. The coal gangue lightweight through-hole ceramsite has the characteristics of large specific surface area, small bulk density, high water absorption rate, excellent ventilation performance, beautiful appearance and shape and no odors, no harmful bacteria, good lightweight strength, and consistent micro-pores and macro-pores. When the coal gangue lightweight through-hole ceramsite is used for culturing or planting various types of nursery stocks, flowers and vegetables, the roots of the plants can absorb nutrition constituents of water or a liquid fertilizer from the coal gangue lightweight through-hole ceramsite, so that good growth and development and the survival rate of the plants are ensured and the coal gangue lightweight through-hole ceramsite is suitable for preparing a soilless culture substrate and nutrient soil.

Description

technical field [0001] The invention relates to ceramsite, in particular to a coal gangue lightweight through-hole ceramsite. Background technique [0002] The soil used for cultivating or planting various seedlings, flowers and vegetables is mostly made of nearby soil, and then mixed with some plant ash or peat soil. The moisture content of these soils is 12-20%, and contains a large amount of harmful bacteria. [0003] When using these soils to cultivate or plant various seedlings, flowers and vegetables, it is difficult to control the amount of water in the later stage. After water replenishment, the soil moisture content exceeds 30%, and the moisture content in the soil is relatively high, and the soil will be semi-fluid. If the soil is not replenished in time, the soil will appear compacted and hard, which will directly affect the normal growth of plants. [0004] With the continuous improvement of the quality requirements of greening projects, materials such as fly a...

AI Technical Summary

Problems solved by technology

[0013] Coal gangue is solid waste discharged during the coal mining process and coal washing process. It is a black-gray rock with low carbon content and harder than coal that is associated with the coal seam during the coal formation process; the accumulated coal gangue in China reaches 1 billion tons, and 100 million tons of gangue will be discharged every year, which not only accumulates and occupies land, but also pollutes the air by spontaneous combustion or causes fires, polluting the atmosphere, and the open-air stacking of coal gangue will generate a lot of dust, which is mainly due to the coal gangue piled on the ground After being exposed to the sun and rain for a long time, it will be weathered and crushed. In addition, coal gangue will disintegrate after absorbing water, so it is easy to generate dust. Under the action of wind, it will deteriorate the quality of the atmosphere in the mining area

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