CN1804009A

CN1804009A - Coal and biomass composite solid fuel

Info

Publication number: CN1804009A
Application number: CN 200610033181
Authority: CN
Inventors: 曾巨泓
Original assignee: Individual
Current assignee: Individual
Priority date: 2006-01-25
Filing date: 2006-01-25
Publication date: 2006-07-19

Abstract

The disclosed solid fuel composed by coal and biomass is prepared by: with coal powder, biomass from dried coal and yellow mud as material, adding KMnO4, hexamethylenetetramine, (NH4)2S2O4, H2O2 and NaCl as synergist; finally, fermenting, stirring, compressing, forming and drying to obtain the target with serious firepower and no toxin or odorless. This invention reduces coal consumption greatly benefit to solve the problem of lacking fuel and spread.

Description

A kind of coal and biomass combined solid fuel

Affiliated technical field

The present invention relates to solid fuel, particularly a kind of coal and biomass combined solid fuel are fit to vast rural area and outlying mountain area and use.

Background technology

As everyone knows, many rural areas of China and the outlying mountain area fuel still used do daily life with biomass such as trees, rice bar or weeds.Yet, economic jump development along with China, people in the countryside constantly increase, and the land used that farming is changed a job sharply increases and people's environmental consciousness lacks the over-exploitation woods, destroyed the eubiosis, cause soil erosion, make many rural areas and mountain area can supply the incendiary biomass day by day poor, seriously influence vast rural area and mountain area daily life, even threatening their existence, this is the pendulum problem that the task of top priority need solve in face of us.Though China promotes human and animal excreta generation biogas and makes fuel in many rural areas in recent years, this is a good method that solves rural area fuel really.Yet not every place can be promoted, and more especially is difficult to raise the rural area and the mountain area of livestock, and the supply of its fuel remains a urgent problem.

Summary of the invention

In order to solve the problem of vast rural area and outlying mountain area's fuel crunch, the invention provides a kind of coal and biomass combined solid fuel, it is abundant that this solid fuel adds raw material sources, makes easily, and easy to use, calorific value is higher, and environmental pollution is few.

Coal of the present invention and biomass combined solid fuel are made up of following components in weight percentage:

The biomass 30～45% that coal dust 30～40% is pulverized

Yellow mud 20～35% potassium permanganate 0.15～0.25%

Ammonium persulphate 0.15～0.25% hexamethylenetetramine 0.25～0.35%

Hydrogen peroxidase 10 .08～0.12% sodium-chlor 0.80～1.20%.

Coal of the present invention and biomass combined solid-fuelled optimum ratio are:

The biomass 36～40% that coal dust 33～36% is pulverized

Yellow mud 25～30% potassium permanganate 0.18～0.22%

Ammonium persulphate 0.18～0.22% hexamethylenetetramine 0.28～0.32%

Hydrogen peroxidase 10 .09～0.11% sodium-chlor 0.90～1.10%.

Biomass of the present invention are the biomass after the drying and crushing such as tangerine bar, wheat straw, tobacco rod, sunflower bar, cotton bar, Hemp Eupatorium, Herba Eupatorii Odorati.

The granularity of described biomass is being suitable less than 10 millimeters.

A kind of coal of the present invention and biomass combined solid fuel are to adopt following method preparation:

1. coal dust is put into a container, add an amount of water, add synergistic agent such as potassium permanganate, ammonium persulphate, hexamethylenetetramine, hydrogen peroxide and sodium-chlor then by proportioning and stir, with plastics film it is sealed then, place 20～28 hours fermentation backs and take out;

2. the biomass after the drying and crushing and yellow mud being added in the coal dust after the fermentation one reinstates stirrer and stirs;

3. the coal dust after will stirring, biomass and yellow mud take out, and are pressed into sphere, strip and block, folded shape or cellular solid compound fuel with the press of finalizing the design;

4. at last the solid compound fuel is dried, dry or dry removal moisture content and just can.

From the present invention's prescription as can be known, a principal feature of the present invention is to make full use of tangerine bar, wheat straw, tobacco rod, sunflower bar, Hemp Eupatorium and the Herba Eupatorii Odorati etc. that rural area or mountain area generally can find some are considered to deleterious biomass and make main fuel, add certain coal dust, and make binding agent with yellow mud, add synergistic agent again and make.Coal of the present invention and biomass combined solid-fuelled biomass add-on are suitable with 30～45%, and the utilization ratio of biomass is lower when too small, is not easy to light, and burns too fastly when too high, and is also improper.Coal dust also is the main raw material of composite solid fuel of the present invention, must have certain add-on could guarantee the trouble-free burning of solid compound fuel, and the effect of yellow mud mainly is that coal dust and biomass are bonded together the solid fuel that can make certain intensity.

The effect of synergistic agent such as composite solid fuel adding potassium permanganate of the present invention, ammonium persulphate, hexamethylenetetramine, hydrogen peroxide and sodium-chlor is as follows:

1. adding potassium permanganate is sterilization, eliminates smoke and reduces noxious gas emission.

2. the purpose that adds ammonium persulphate is oxygenation, combustion-supporting and composite solid fuel can be burnt cut thoroughly.

3. the effect of hexamethylenetetramine is to make fuel igniting easily, quick combustion, flame big.

4. the effect of hydrogen peroxide is to strengthen raw coal proportion, and the requirement of the ature of coal of reduction can be eliminated the impurity in the coal, improves the suitability to feed coal.

5. the adding of sodium-chlor can make fuel accomplish the effect of fast, easy firing on fire and reinforcement firepower effectively.

The results showed that the add-on of these five kinds of synergistic agent is suitable with above-mentioned add-on, very few effect is little, and the effect that is increased too much the time is also not obvious.

A kind of coal that employing the present invention makes and biomass combined solid fuel have following advantage:

1. the plant bar and the deleterious weeds of having adopted rural area or mountain area to be easy to find make raw material, and these refuses are fully used, and greatly reduce the demand of coal, have solved the contradiction of rural area and outlying mountain area's lack of fuel.

The composite solid fuel made from biomass, coal dust, yellow mud and synergistic agent have easy to use, light easily, quick combustion, firepower is violent, calorific value is high, odorless, advantage such as nontoxic and free from environmental pollution.

3. the low cost of manufacture of composite solid fuel of the present invention reduces closely 50% than former honeycomb briquette and firewood, help applying in poor rural and mountain area.

Embodiment

Multiply by gross weight by the weight percent of following component and take by weighing raw material:

The biomass 40% that coal dust 34% is pulverized

Yellow mud 24.2% potassium permanganate 0.20%

Ammonium persulphate 020% hexamethylenetetramine 0.30%

Hydrogen peroxidase 10 10% sodium-chlor 1.0%.

Manufacture method is as follows:

Coal dust is put into the hole, add potassium permanganate, ammonium persulphate, hexamethylenetetramine, hydrogen peroxide and sodium-chlor again after adding suitable quantity of water, seal with plastics film after stirring, take out after placing twenty four hours, add the biomass and the yellow mud that crush, put into to deliver to after stirrer stirs and be pressed into cellular solid fuel on the coal compression machine, dry at last and can use.

Claims

1. a coal and biomass combined solid fuel is characterized in that being made up of following components in weight percentage:

The biomass 30～45% that coal dust 30～40% is pulverized

Yellow mud 20～35% potassium permanganate 0.15～0.25%

Ammonium persulphate 0.15～0.25% hexamethylenetetramine 0.25～0.35%

Hydrogen peroxidase 10 .08～0.12% sodium-chlor 0.80～1.20%.

2. coal according to claim 1 and biomass combined solid fuel is characterized in that the weight percent of each component is:

The biomass 36～40% that coal dust 33～36% is pulverized

Yellow mud 25～30% potassium permanganate 0.18～0.22%

Ammonium persulphate 0.18～0.22% hexamethylenetetramine 0.28～0.32%

Hydrogen peroxidase 10 .09～0.11% sodium-chlor 0.90～1.10%.

3. coal according to claim 1 and biomass combined solid fuel is characterized in that biomass are the biomass that dryings such as tangerine bar, wheat straw, tobacco rod, sunflower bar, cotton bar, Hemp Eupatorium, Herba Eupatorii Odorati are pulverized.

4. coal according to claim 4 and biomass combined solid fuel, the granularity that it is characterized in that biomass is less than 10 millimeters.

5. coal according to claim 1 and biomass combined solid fuel, it is characterized in that this preparation method puts into the hole with coal dust, add potassium permanganate, ammonium persulphate, hexamethylenetetramine, hydrogen peroxide and sodium-chlor again after adding suitable quantity of water, seal with plastics film after stirring, placing 20～28 hours fermentation backs takes out, add biomass and the yellow mud crush, put into to deliver to after stirrer stirs and be pressed into cellular solid fuel on the coal compression machine, dry at last.