CN104962336A

CN104962336A - Cunninghamia fuel and preparing method thereof

Info

Publication number: CN104962336A
Application number: CN201510322280.2A
Authority: CN
Inventors: 钟诚
Original assignee: Individual
Current assignee: Individual
Priority date: 2015-06-12
Filing date: 2015-06-12
Publication date: 2015-10-07

Abstract

The invention discloses cunninghamia fuel and a preparing method thereof and relates to the field of waste reutilization and biofuels. The cunninghamia fuel comprises, by weight, 80 to 95 parts of cunninghamia chip and 5 to 20 parts of oil-tea camellia seed cake. The preparing method includes: crushing the cunninghamia chip and the tea-oil tree fruit meal, drying the cunninghamia chip to be 8% to 20% in water content, mixing and pressing the cunninghamia chip and the tea-oil tree fruit meal, allowing air cooling, and performing packaging. The cunninghamia fuel and the preparing method thereof have the advantages that the cunninghamia chip is resourcefully utilized, operation is simple, efficiency is high, the calorific value of the cunninghamia fuel is high, little ash occurs, and emitted smoke is low in blackness.

Description

China fir fuel and preparation method thereof

Technical field

The present invention relates to waste recycling and biofuel field, especially a kind of China fir fuel and preparation method.

Background technology

The energy is the most basic motivating force of All Around The World development and economic growth, is the basis that the mankind depend on for existence.Under the tense situation that the our times energy faces, development clean energy and substitute energy are the important channels solving energy dilemma from technical standpoint.Granular fuel is exactly a kind of clean energy, and it is with forest and agricultural biomass such as branch, bark, stalks for raw material, through pulverizing, the process such as modified, under high pressure (heating or do not heat) condition, is compressed into particulate state or bar-shaped and that quality is solid forming composition.Its calorific value is about 0.7-0.8 times of standard coal, namely the Wood pellets of 1.25 tons is equivalent to the calorific value of 1 ton of standard coal, but Wood pellets burns in supporting roasting kiln, its efficiency of combustion is 1.3-1.5 times of existing coal firing boiler, therefore the heat utilization ratio of 1 ton of Wood pellets is substantially suitable with the heat utilization ratio of 1 ton of standard coal, is a kind of fuel that can be used as Industrial Boiler, Civil energy-saving cooking stove, domestic heating oven and agricultural greenhouse.Visible, granular fuel except have than great, be convenient to store and transport, catch fire easily, have good burning performance, except the advantage of thermo-efficiency high (being more than 5 times of directly burning), also to environment, the wide prospect of marketing can not be had.

Growth of Chinese Fir is fast, output is high, material is good, purposes is wide, and its timber is Building wood, the decorative material of high-quality, is also the paper pulp material of high-quality, and dark liking by broad masses is one of most important merchantable timber seeds of China.Especially south if the county such as three rivers, melt water of Liuzhou city, Guangxi province is as important commodity trees, at the beginning of 2014, full Liuzhou City China fir area 5,300,000 mu, newly makes 130,000 mu of China firs every year.These China fir forest farms and wood-working factory produce a large amount of cedar sawdusts, China fir bar the like waste every year, these China fir wastes are except small part is used as life fuel, feed, fertilizer, industrial raw material, the use-pattern of large department, then for directly burning or abandoning, causes a large amount of wastes and large-area pollution.

Tea oil tree is the exclusive rare oil plant seeds of China, and only grow in southern red soil hill, mountain region, tea oil tree is once planted, and is benefited for many years, and bear fruit the 3rd year from plantation, reach more than 5 years the best fruiting period, the collecting period can reach for ten several years.Northern Rong'an, Liuzhou, melt water, three Jiang San county tea oil cultivation histories are long, and three counties in 2013 have nearly 1,000,000 mu of tea tree planting according to statistics, produce tea seed more than 1.60 ten thousand tons per year.But tea seed oil yield is only 20-40%, visible oil tea withered (tea seed after oil expression) still has certain oil length, fails to make the best use of everything.

If China fir waste and the withered granular fuel that is produced into of oil tea can not only be made China fir waste and oil tea withered resource utilization recycling, reduce pollution to environment, can also contribute to solution energy dilemma.

Summary of the invention

The invention provides a kind of China fir fuel and preparation method, it can solve the problem of cedar sawdust recycling.

In order to solve the problem, the technical solution adopted in the present invention is: after this China fir fuel mixes oven dry by the raw material of following weight percent, compacting forms: cedar sawdust 80-95 part, the withered 5-20 part of oil tea.

The preparation method of this China fir fuel is as follows:

A, China fir waste is crushed to granularity is that 0.5-3mm obtains cedar sawdust, and dries moisture to 8%-20%;

B, be 0.5-3mm by withered for the oil tea granularity that is crushed to;

C, by step A gained cedar sawdust and step B gained oil tea is withered mixes in proportion, wherein cedar sawdust is 80-95 weight part, and oil tea is withered is 5-20 weight part;

D, by step C gained mixture under the pressure of 60-80T or the temperatures of 50-70 DEG C make type;

E, D step gained granular fuel dried in the air cool, pack and obtain cedar sawdust fuel.

Owing to have employed technique scheme, the present invention compared with prior art has following beneficial effect:

1, resource utilization recycling China fir waste and oil tea withered, decrease the pollution to environment

2, ashes during high, the burning of the China fir fuel combustion value that obtains of the present invention are few, oke exhaust blackness is little, exhaust gas emission is few, done certain contribution to solution energy dilemma.

3, the present invention is simple to operate, cost is low, production efficiency is high, obtained cedar sawdust fuel product light specific gravity, and cleanliness factor is high, easily transport and storage.

Embodiment

Below in conjunction with specific examples, the invention will be further described:

Embodiment one:

The raw material adopted is: cedar sawdust 95 kilograms, withered 5 kilograms of oil tea.

Preparation method is: A, 95 kilograms of China fir wastes are crushed to granularity is that 0.5-3mm obtains cedar sawdust, and dries moisture to 15%;

B, be 0.5-3mm by 5 kilograms of withered granularities that are crushed to of oil tea;

C, step A gained cedar sawdust to be mixed with step B gained oil tea is withered;

D, step C gained mixture is made type at the pressure of 60-80T;

E, D step gained granular fuel dried in the air cool, pack and obtain China fir fuel.

Embodiment two:

Preparation method is: A, 80 kilograms of China fir wastes are crushed to granularity is that 0.5-3mm obtains cedar sawdust, and dries moisture to 15%;

B, be 0.5-3mm by 20 kilograms of withered granularities that are crushed to of oil tea;

D, step C gained mixture is made type at the pressure of 60-80T;

Embodiment three:

The raw material adopted is: cedar sawdust 87.5 kilograms, withered 12.5 kilograms of oil tea.

Preparation method is: A, 87.5 kilograms of China fir wastes are crushed to granularity is that 0.5-3mm obtains cedar sawdust, and dries moisture to 15%;

B, be 0.5-3mm by 12.5 kilograms of withered granularities that are crushed to of oil tea;

D, step C gained mixture is made type at the pressure of 60-80T;

Claims

1. a China fir fuel, is characterized in that:

The making raw materials by weight of described China fir fuel mixes the rear compacting of oven dry by following component and forms: cedar sawdust 80-95 part, the withered 5-20 part of oil tea.

2. the preparation method of China fir fuel according to claim 1, is characterized in that:

B, be 0.5-3mm by withered for the oil tea granularity that is crushed to;