Method for preparing briquette binder from kitchen waste and cattle manure

Abstract

The invention discloses a method for preparing a briquette binder from kitchen waste and cattle manure and belongs to the technical field of preparation of briquette binders. The method comprises the following steps: adding sodium humate, bentonite and crushed maize straw into filtered leftovers, mixing and stirring, adding vinasse, fermenting and then centrifuging, spray drying supernatant, then mixing the supernatant with precipitate for later use, taking the cattle manure and peanut shell, drying and crushing the cattle manure and the peanut shell, then mixing the dried and crushed cattle manure and peanut shell with filtered biogas liquid, then carrying out composting treatment, uniformly mixing the compost with the mixture for later use and polymethyl acrylate, and drying to obtain the briquette binder. According to the method for preparing the briquette binder from the kitchen waste and the cattle manure, the kitchen waste and the cattle manure are used as raw materials of the briquette binder; the raw materials are easily available and environmental-friendly; when the prepared briquette binder is used for preparing pyrolysis briquette, the briquette is high in cold intensity and heat intensity; the tar yield during pyrolysis of the briquette can also be obviously increased; the prepared briquette binder is high in heat intensity and heat stability and excellent in water resistance and humidity resistance; the admixing amount and the ash content of the briquette in the using process are reduced; the briquette binder has a broad application prospect.

Description

technical field [0001] The invention discloses a method for preparing a molded coal binder by using kitchen waste and cow dung, and belongs to the technical field of molded coal binder preparation. Background technique [0002] At present, some major coal-producing countries in the world have regarded briquette technology as the main component of clean coal technology, and briquette binder is the key technology in the production of briquette coal, especially in the cold pressing process. High-quality briquette, hundreds of binders have been researched in countries all over the world. The selection of briquette binder mainly has the following basic requirements: (1) Strong binding effect on pulverized coal, so that the briquette has sufficient cold and hot strength and mechanical strength; (2) The amount of binder added is small , and the addition of the binder does not cause secondary pollution; (3) has a certain moisture-proof and waterproof performance; (4) does not affec...

AI Technical Summary

Problems solved by technology

[0003] The technical problem mainly solved by the present invention: the present traditional briquette binder has poor thermal strength and thermal stability, is easy to deliquescence, and low cohesiveness leads to a large amount of admixture, which significantly increases the ash content of briquette Deficiencies, the present invention adds sodium humate, bentonite and crushed corn stalks to the filtered leftovers, mixes and stirs them, adds distiller's grains to ferment and centrifuges, freezes and dries the supernatant and mixes it with the sediment for later use, and takes cow dung 1. Peanut shells are dried and crushed, mixed with filtered biogas liquid, and then composted, then mixed with spare mixture, polymethyl acrylate, etc. and dried to obtain the briquette binder. The present invention uses kitchen waste and cow dung as briquette binder. The raw material of the binder is easy to obtain and environmentally friendly. When the prepared briquette binder is used to prepare briquette for pyrolysis, it can not only make the briquette have good cold and hot strength, but also significantly improve the thermal strength of the briquette during pyrolysis. Tar yield, thermal strength and thermal stability are excellent, waterproof and moisture-proof performance is better, cohesiveness is very good, the amount of mixing in the use process is reduced, and the ash content of the briquette is significantly reduced, and it has a wider application prospect