CN101280236A - Clean type coal and fast production method thereof - Google Patents

Abstract

The invention discloses clean coal and the rapid production method of the clean coal. The clean coal is part by weight composed of 30-85 portions of charcoal powder, 10-60 portions of fine anthracite and 3-5 portions of sodium silicate binder; the production method of the clean coal includes that the raw materials of charcoal powder, fine anthracite and sodium silicate binder are mixed according to the weight ratio; and the raw materials are mixed and stirred evenly, and are pressed into briquettes by a briquette presser; the briquettes are dried to obtain the clean coal. The clean coal has the advantages of easy ignition, clean combustion, avoiding the black smoke during combustion, low manufacturing cost and facilitating the rapid production.

Description

A kind of clean type coal and quick production method thereof

Technical field:

The present invention relates to a kind of clean type coal and quick production method thereof.

Technical background:

Patent application document (application number: 200810030872.7) a kind of composite briquette and the production method thereof of Jie Shaoing, be to mix by a certain percentage, make moulded coal, enter charing in the charring furnace with biomass fuel, hard coal, soluble glass adhesive, cooling becomes a kind of clean type coal again; Production method of the present invention exists following deficiency: 1, hard coal is a kind of coal of degree of coalification maximum, fixed carbon content height, general carbon content is more than 90%, be higher than charcoal, the about 8000-8500 kilocalorie of calorific value/kilogram is if hard coal mixes charing again with biomass fuel, want loss of energy, increase production cost; 2, water content is many in the biomass fuel, and generally 20～30%, the charing equipment of biomass fuel is exactly a charring furnace, less investment, can finish in the dispersive small towns, moisture content a large amount of in carbonization process are evaporated, and reduce transportation cost, reduce the production investment of concentrating charing, accelerated production rate, if hard coal mixes charing again with biomass fuel, increase the transportation cost of moisture content in the biomass fuel, also be unfavorable for quick production.

Kiln in the invention:

The object of the present invention is to provide when a kind ofly catching fire, burning clean, burning easily not over-emitting black exhaust, low cost of manufacture, be convenient to the clean type coal produced fast.

Another purpose of the present invention is to provide a kind of production method of clean type coal.

The object of the present invention is achieved like this, the component of this clean type coal are wood charcoal powder, pulverized anthracite, soluble glass adhesive.

The component and the weight proportion of this clean type coal are as follows: wood charcoal powder 30～90, pulverized anthracite 10～70, soluble glass adhesive 3～5.

Wood charcoal powder is meant that biological material comprises the charcoal that generates after the process charings such as plant straw, shell, fruit stone, forestry tankage, bark, wood sawdust and branch, and grinding and processing forms again.

The production method of above-mentioned clean type coal comprises the steps: wood charcoal powder, pulverized anthracite, three kinds of raw materials of soluble glass adhesive are prepared by weight, and restir mixes, and is pressed into moulded coal through the moulded coal press, oven dry.

Because this clean type coal, its component is a wood charcoal powder, the propellant combination of pulverized anthracite contains the charcoal of low ignition point, has overcome the high shortcoming of hard coal burning-point, it is low that hard coal has a cost, the advantage that combustion time is long, it is expensive to remedy charcoal, the shortcoming that combustion time is short, the cohesive force intensity of water glass is higher, main component after the water glass sclerosis is a silicon gel solid, and specific surface area is big, thereby has higher cohesive force, in transportation and use, be difficult for broken, and, water glass good heat resistance, the silicon-dioxide mesh skeleton that the sclerosis back forms, at high temperature, the strength degradation amplitude is little, and in combustion processes, flame is inwardly invaded from the moulded coal outside surface, after carbon is burned, silicon gel and ash content form cellular a supporting, and clean type coal and clean type coal be good permeability each other, and burning fully.

Embodiment:

Get 65 kilograms of wood charcoal powders, 30 kilograms of pulverized anthracites and 5 kg of water glass are put into stirrer with above-mentioned three kinds of raw materials and are mixed, and above-mentioned mixed raw materials is moved on in the molding coal machine, are pressed into the moulded coal of setting, then, and oven dry, packing.

Claims (3)

1, a kind of clean type coal is characterized in that: its component is wood charcoal powder, pulverized anthracite, sodium silicate binder.

2, clean type coal according to claim 1 is characterized in that: its component and weight proportion are as follows: wood charcoal powder 30～85, pulverized anthracite 10～60, sodium silicate binder 3～5.

3, a kind of quick production method of clean type coal is characterized in that: comprise the steps: wood charcoal powder, pulverized anthracite, three kinds of raw materials of soluble glass adhesive are prepared by weight, restir mixes, and is pressed into moulded coal through the moulded coal press, oven dry.