Additive for making coal briquette

Abstract

The invention relates to an additive which is used for manufacturing molded coal, which comprises materials with the following percentage by weight, broken fiber plant 20%-79%, coal gangue powder 20%-79% and oxidation agent 1%-10%. Coal gangue powder and broken fiber plant are wastes of agriculture and industry, which has very low production cost and very convenient processing, oxidation agent in the additive can damage join keys of organic matters in coals, partial low quality coal can be used partially when the additive is utilized to manufacture molded coal, and production cost of molded coal is further lowered.

Description

Technical field: [0001] The invention relates to an additive for making briquettes. Background technique: [0002] Briquette is a carbonaceous solid fuel with a fixed geometry made of coal. Briquettes enable the conversion of coal into more valuable fuels. However, because the coal used to make briquettes is usually anthracite as the main material, and anthracite is an inert substance without caking, so when making briquettes, it is necessary to add a cementing agent to press it into shape. In the traditional technology, a large amount of high-quality clay is usually used as a cementing agent in the production of briquettes. On the one hand, using clay as a cementing agent will destroy the cultivated land and cause waste of land resources. On the other hand, the clay contains a lot of water and is sticky. Before forming coal, it is necessary to remove the water in the clay by natural drying or artificial heating. Using natural drying to remove water depends on the external...

AI Technical Summary

Problems solved by technology

[0005] The task of the present invention is to provide an additive for making briquette that solves the problems of briquette cost and calorific value by using industrial waste coal gangue as a binder