CN101638601A

CN101638601A - Eternal coal

Info

Publication number: CN101638601A
Application number: CN200810134588A
Authority: CN
Inventors: 万金林; 赵新大
Original assignee: Individual
Current assignee: Individual
Priority date: 2008-07-30
Filing date: 2008-07-30
Publication date: 2010-02-03

Abstract

The invention relates to an eternal coal, which is a high-energy composite charcoal produced according to the following steps: adopting grasses, woods, sawdust, husks, rattans, stems, leaves, straws,rice straws, rice hulls, corn stalks, cotton stalks, sorghum stalks and the like of various reproducible living beings, plants and straw resources; drying the materials to prepare plant particles or biological powder; and performing charring modification and optimized recombination. The high-energy composite charcoal can be widely applied to industries and home application and has stable performance and no pollution, the combustion value is generally between 7,000 and 8,500 kilocalories, the quality is better than cokes, the production investment is only 1 to 5 percent of that of coal cokes, pollutant is reduced to 70 to 90 percent, so that the aims of high ultra energy saving, saving, more environmental protection and pollution-free efficiency can be realized, and the high-energy composite charcoal is the cleanest charcoal product; the overall efficiency is about 1 to 5 times of that of wood charcoals, and the cost is low; besides, if the high-energy composite charcoal is prepared into power plant used coal, the pollutants including sulfur, phosphorus, carbon dioxide, nitric oxide and the like are minimal, the combustion value is stable and is not inhibited by a raw coal fuel, andbecause 70 to 90 percent of the raw materials come from plant straws, the high-energy composite charcoal is called as 'eternal coal'.

Description

Eternal coal

Technical field

The present invention relates to a kind of eternal regenerated biology (plant) moulded coal charcoal, in particular, be a kind of green coal that regenerated forever that power plant's generating and industry uses has characteristics such as low-sulfur, low-phosphorous, low melting point and thermal value height that especially is fit to, this coal is not only to not corrosion of equipment, and, can also be widely used in civilian to not pollution of environment.The invention still further relates to the production method of Eternal coal.

Background technology

At present, known existing power plant all is unrenewable fossil energy with fire coal, consumption big (only China every year just reach 1,000,000,000 tons) not only, and environment is had severe contamination, and (the coal-fired sulphur content of power plant is generally all about 2.5%, the power plant soot sulphur content that has is up to 3.5%), also there is bigger shortcoming in existing coal for power generation, and is also higher to fuel nozzle and chamber structure requirement, and requires to differ.Existing in addition biological straw power plant is owing to be subjected to restrictions such as receipts, storage, fortune, and problem is a lot of.All there is following shortcoming and defect part:

Though an existing power plant coal-powder boiler is wider to the scope of application of coal, it both can be designed to use the brown coal of high volatile, also can be designed to use the hard coal of low volatile.But to a boiler of having installed and used, can not use the coal of various volatile matters, because it is subjected to the restriction of fuel nozzle pattern and chamber structure.This will recombinate and reproduce coal-fired performance, use to adapt to various power plant.And existing coal for power generation quality index and shortcoming are:

1, volatile matter: be the primary index of distinguishing the coal fire behaviour.Volatile content is high more, and it is easy more to catch fire.According to the boiler design requirement, the value of coal supply volatile matter changes should not be too greatly, otherwise can influence the normal operation of boiler.As the original design coal that uses low volatile and after changing the coal of high volatile, because of flame kernel approaches the fuel nozzle outlet, may be because of burning out the fuel nozzle blowing out; If original designly use the coal of high volatile and change the coal that burns low volatile, then can make incomplete combustion late, even cause flame-out accident because of catching fire.Therefore to press intrinsic volatile matter coal or close coal supply during coal supply as far as possible.

2, ash content: ash oontent can make flame propagation velocity descend, and postpone ignition time, combustion instability, and furnace temperature descends.

3, moisture: moisture is one of objectionable impurities in the combustion processes, and it absorbs a large amount of heat in combustion processes, and is more much bigger than ash content to the incendiary influence.

4, thermal value: for thermal value be an important evidence of boiler design.Because it is stronger that power plant's coal dust adapts to coal, therefore as long as the thermal value of coal requires to conform to substantially with boiler design.

5, ash fusion point: because coal dust burner hearth flame kernel temperature is many more than 1500 ℃, under such high temperature, coal ash is softening or fluid state mostly.

6, the sulphur content of coal: sulphur is detrimental impurity in the coal, though to itself not influence of burning, its content is too high, and is all quite serious to the pollution of the corrosion of equipment and environment.Therefore, power plant uses the sulphur content of coal can not be too high, and general requirement is the highest can not to surpass 2.5%.

Two, the existing biological straw power plant that utilizes the renewable energy resources, need found the factory again, and the investment of founding the factory is bigger, the investment that has reaches several hundred million units, cause the waste of the big fund of country, the trend that become to jump on the bandwagon at present, biological straw power plant of over one hundred family has been set up in a few year whole nations, otherwise how long will cause stalk resource waste and cause investment not have the situation of sharp, poor efficiency and serious waste.Also there is the feeding system complexity in biological straw power plant, and running cost is higher, and maintenance cost is bigger, store up the too many defective of the numerous and diverse grade of fortune, again because cost of electricity-generating is too high, and rate for incorporation into the power network is near 0.60 yuan, stops production once starting and carry out a large amount of state subsidies situations so the biological power plant that has is firm.More than many shortcoming and defect parts, demand urgently improving.

Summary of the invention

The objective of the invention is to provide a kind of regenerated Eternal coal forever, it can overcome deficiency and the shortcoming of power plant with coal-fired and biological straw Power Plant Fuel.This Eternal coal; it is the grass that adopts reproducible various biological straw resources; wood; bavin; sawdust; shell; rattan; stem; leaf; straw; straw; rice husk; corn stalk; corn ear; peanut stems; the cotton straw; the rape stalk; high grain stalk etc. is dried and is made vegetable particle or biological powder; and vegetable particle or biological powder and coal and coal dust carried out charing modification and material component optimization reorganization; and with mechanical-moulded; after fired; can obtain high energy compound carbon; this high energy compound carbon can be widely used in civilian and industrial use; its stable performance; quality is good; pollution-free; fuel value height (generally at the 7000-8500 kilocalorie); quality is better than coke; producing investment only is 1% of coal coke; the pollutent reduction reaches 70-90%, is the cleanest present carbon product.Owing to contain the coal composition in this high energy compound carbon, so overall efficiency is again about 1-5 times of charcoal, and cost is low; As when making electric coal, high energy compound carbon can be pulverized, add the brown coal powder of high volatile or the pulverized anthracite of low volatile again and allocate reorganization, according to electric coal requirement, can make out the electric coal component of various standards; Because major ingredient is vegetable particle or biological powder in this electricity coal component; so pollutents such as sulphur, phosphorus, carbonic acid gas, nitrogen protoxide are few; and cost is lower; its volatile matter, ash content, moisture, thermal value, ash fusion point are comparatively suitable; and can be formulated to the best-fit state; general fuel value is at the 6000-7000 kilocalorie; cost reduces simultaneously; and it is comparatively stable; substantially be not subjected to the restriction of raw coal fuel; the main raw material of its 70-90% comes from reproducible straw, so be referred to as " Eternal coal ".

The purpose of present technique is exactly structure, character and the performance that will change material, and carries out the change of material reorganization component, makes it reach high-level efficiency, super energy-conservation, super saving, more environmental protection, pollution-free green coal.

When producing moulded coal, in electric coal component, add the energy efficient agent and green protect agent and stir after, add again that a certain amount of strengthened binder stirs and fully behind the mixing, promptly get the Eternal coal complete feed; The Eternal coal complete feed is put in the special-purpose moulded coal unit, can be made the Eternal coal finished product of all size, through packing, storage, listing.

This Eternal coal is saved prime energy (coal) rate up to 70-90%, just mean that also the usage quantity of Eternal coal and other subsidiary material is at 70-90%, the usage quantity of its prime energy (coal) only is 30-10%, because a large amount of uses to the regeneration biological stalk, to help the saving of prime energy, with advancing also to have ensured electric coal and civilian and supply industrial fuel, the all drawbacks and the shortcoming of existing (utilizing renewable resource) biological straw power plant have been overcome, can not only save the investment of newly founding the factory in a large number, can also be referred to as " Eternal coal " and " green coal " for country retrieves a large amount of electricity price subsidies.

The high-level efficiency of Eternal coal of the present invention, super energy-conservation, super saving, more environmental protection, free of contamination principle are that the combination by structural modification, material reorganization and additive and synthetic materials forms, broken traditional combustion supporting technology principle, physics and chemically composited technology such as material reorganization, modification, catalysis and the synthesis technique of employing science, improve temperature of combustion, the efficiency of combustion of fuel effectively, the combustionproperty that realizes reorganization catalysis and substance modification is more stable, thereby reaches super energy-conservation, super clean, pollution-free and more green effect.Again because all objectionable impuritiess and the discharge of harmful gases of contained original (coal) energy in this Eternal coal, and can reach higher energy-saving efficiency and social benefit, significant, crisis, is perfect.

The renewable energy resources, energy-conservation be the matter of utmost importance of current mankind, energy problem is also all the time because of disturbing human development.Therefore Eternal coal of the present invention can solve human energy scarcity problem to a great extent; Solved the energy problem of can not regenerating; Also having solved simultaneously the charcoal energy can not industrialization use problem and solve the expensive problem of the charcoal energy.If using the present invention to produce that Eternal coal uses will all be a contribution greatly to the universe, it can make the energy reach inexhaustible stage substantially; Simultaneously, prolongation working life of the original coal energy was reached outside thousand, and can reduce and delay the destruction of mankind itself the earth and living environment, all very huge to the influence of global each side, thus reach benign development trend.

The technical solution adopted in the present invention is: a kind of Eternal coal, it is to be carried out the charing modification and carried out material component optimization reorganization by the standard coal of the vegetable particle of (10-200 order) or biological powder and (30-300 order) and coal dust, and with machinery make charge bar, the material cake or the material piece after, fired charing and charcoal processing can obtain high energy compound carbon; As when making electric coal, again with high energy compound carbon with mechanical disintegration after to the 20-200 order, the height volatilization brown coal powder or the low volatile pulverized anthracite that add (20-200 order) carry out material allotment reorganization, according to electric coal requirement, can make the electric coal component of various standards; When making moulded coal, electric coal component is ground into electric coal dust with pulverizer, after in electric coal dust, adding energy efficient agent and environmental protection agent and stirring, add a certain amount of strengthened binder again and stir, promptly get the Eternal coal complete feed; The Eternal coal complete feed is put in the special-purpose moulded coal unit, can be made the different Eternal coal finished product of specification.

Its prescription is: vegetable particle or biological powder 70-90% (weight part), standard coal dust 15-30% (weight powder), high volatile brown coal powder 5-20% (weight part) or low branch hard coal 5-20% (weight part), energy efficient agent 3-5% (weight part), environmental protection agent 2-4% (weight part), the strengthened binder 5-8% (weight part) of waving.

The production method of Eternal coal:

Earlier the biological straw raw material is smashed with machinery, drying, pulverize with pulverizer again, making the vegetable particle of (10-300 order) or biological powder is crushed to 30-300 purpose standard coal dust with standard coal with broken machine and mixes, to reach material component optimization reorganization, and with machinery make charge bar, the material cake or the material piece, charge bar, material cake or material piece are carried out the charing modification to be handled, fired charing and charcoal processing, can obtain high energy compound carbon, this high energy compound carbon has characteristics such as stable performance, quality are good, pollution-free, fuel value height, generally all at the 7000-8500 kilocalorie; As when making electric coal, after high energy compound carbon can being crushed to the 20-200 order, add again after high volatile brown coal powder (20-200 powder material) or low volatile pulverized anthracite (20-200 powder material) carry out material allotment reorganization, can make the electric coal component of various standards, according to electric coal requirement, its volatile matter, ash content, moisture, thermal value, ash fusion point and sulphur content are all adjustable to be fitted on the middle state of making, and general fuel value all can remain between the 6000-7000 kilocalorie, and cost reduces simultaneously; When making moulded coal, electric coal component can be ground into electric coal dust with pulverizer, in electric coal dust, add can manage efficient agent and environmental protection agent and stir after, add a certain amount of strengthened binder again and stir, promptly get the Eternal coal complete feed; The Eternal coal complete feed is put in the special-purpose moulded coal unit, can be made the Eternal coal finished product of all size.

Embodiment

According to production operation embodiment, Eternal coal is that the standard coal dust 15-30% (weight part) by (10-200 purpose) vegetable particle or biological powder 70-90% (weight part) and (30-300 order) carries out the charing modification and carries out the optimization of material component and recombinate, and with machinery make charge bar, the material cake or the material piece after, fired charing and charcoal processing can obtain high energy compound carbon 85-120% (weight part); As when making electric coal, again with high energy compound carbon 85-120% (weight part) with mechanical disintegration to the 20-200 order, the height volatilization brown coal powder or the low volatile pulverized anthracite 5-20% (weight part) that add (20-200 order) again carry out material allotment reorganization, can make the electric coal component 90-140% (weight part) of various standards; As when producing moulded coal, electric coal component 90-140% (weight part) is become electric coal dust with mechanical disintegration, after interpolation energy efficient agent 3-5% (weight part) and environmental protection agent 2-4% (weight part) stir in electric coal dust, add a certain amount of strengthened binder 5-8% (weight part) again and stir, promptly get Eternal coal complete feed 100-157% (weight part); The Eternal coal complete feed is put in the special-purpose moulded coal machinery, can be made the Eternal coal finished product of all size.

Claims

1, Eternal coal, its feature again in: it is promptly to get Eternal coal complete feed 100-157% (weight part) by the height volatilization brown coal powder 5-20% (weight part) of the standard coal dust 15-30% (weight part) of (10-200 purpose) vegetable particle or biological powder 70-90% (weight part), (30-300 order), (20-200 order) or low volatile pulverized anthracite 5-20% (weight part), energy efficient agent 3-5% (weight part), environmental protection agent 2-4% (weight part), strengthened binder 5-8% (weight part).