CN106278400A

CN106278400A - Culled wood prehydrolysis produces the method for fertilizer

Info

Publication number: CN106278400A
Application number: CN201610643166.4A
Authority: CN
Inventors: 薛润林; 斯薛辉
Original assignee: Individual
Current assignee: Individual
Priority date: 2016-08-06
Filing date: 2016-08-06
Publication date: 2017-01-04

Abstract

The invention provides a kind of method that culled wood prehydrolysis produces fertilizer, comprise the steps of the first step, timber tears up section: second step, feed intake liquor ratio: 8 tons of broken wood chips, use 8T water, the KOH concentration of water is 1.5g/L, i.e. add 12Kg potassium hydroxide in 8T water, adds 1Kg dispersibility degradable orchil in 8T water；After 3rd step, wood chip and water feed intake, starting rotary spherical digester, rotary spherical digester operates, entering steam intensification the 4th step, after insulation terminates, carry out steam bleeding batch turning, the material poured out is i.e. the fertilizer needed for plant production, wood chip pH value is neutral, and after boiling end steam bleeding, residual liquid all recycles, it is achieved zero-emission.

Description

Culled wood prehydrolysis produces the method for fertilizer

Technical field

The present invention relates to a kind of method that culled wood produces fertilizer.

Background technology

China to consume 15 billion cubic meter timber, annual housing demolition, building construction, template, timber processing corner every year Material, waste and old Wooden furniture, gardens trees etc. that are withered and that prune produce more than 100,000,000 cubes waste and old woods every year.Developed country gives up Timber utilization rate is more than 80%, and major part culled wood passes through and sterilizes, fermenting and producing humic acid organic fertilizer, recurrence gardens, farmland, Play green benign cycle effect.

China to improve culled wood utilization rate further, mainly by Government-Leading, ensures with laws and regulations, regulation building Industry, housing demolition, afforestation, residential property, universities and colleges etc. culled wood is delivered to specify collection site, measure little useless Timber, after private friendship money, is transported by environmental sanitation department, uses door and window for many years, professional's check whether there is to be had in removal in generation Moth, the insect such as white Formica fusca, use can not be repeated by the culled wood of pest and disease damage, prevent the propagation of pest and disease damage, have the useless of disease Timber, Recycled panel, a woodwork etc. can do and produce the raw material that mulch is precious.

Tree skill that afforestation is pruned, leaves, withered trees, tree root, the trees of valve, the withered rotten leaf of skill etc. are cut in woods field boundary samsara All can produce mulch precious (mulch treasured is i.e. the organic fertilizer needed for plant growing).But traditional production humic acid organic fertilizer Method typically uses compost, compost fermentation for up to 2-4 month, the time cycle of the microbial degradation such as whiterot fungi, yeast Oversize, compost can not process a large amount of waste and old wood, the branch of afforestation pruning, the timber of woods field boundary samsara felling immediately, this After the bright pulverizing of processing on the spot, then through prehydrolysis, catch red color, quickly produce mulch precious, immediately return the earth, carry out green Color recirculation.

Summary of the invention

It is an object of the invention to provide a kind of fertilizer quickly changed by culled wood required for plant root growth Method, the method that have employed rotary spherical digester prehydrolysis.

The first step, timber tears up section:

Cut into slices broken for culled wood with building template disintegrating machine and wood sheet cutter successively, through 40 cubic metres of rotary spherical digesters of metering, Once load 8 tons of broken wood chips；

Second step, feed intake liquor ratio:

8 tons of broken wood chips, use 8T water, and the KOH concentration of water is 1.5g/L, i.e. add 12Kg potassium hydroxide in 8T water, in 8T water Add 1Kg dispersibility degradable orchil；

3rd step,

After wood chip and water feed intake, starting rotary spherical digester, rotary spherical digester operates, and enters steam and heats up, and intensification 40min, in ball, pressure is raised to 0.1MPa, temperature reaches 120 DEG C, is incubated 40min；In intensification, insulating process, cellulose and lignin are made by basic hydrolysis and are sent out Raw expanded, pigment dissolution, hot water extraction thing dissolution, produce cellulose, lignin degradation series of physical and chemical reaction, along with The carrying out of prehydrolysis reaction, wood chip is brown, permeates with orchil, and wood chip is become maroon by brown, and wood chip is through 120 DEG C high temperature sterilization, kills all insects in wood chip, can use safely；

The effect of KOH:

KOH is highly basic, alkalescence prehydrolysis, accelerates the carrying out of wood chip prehydrolysis chemical reaction, accelerates organic dissolution；In advance Can produce a small amount of organic acid in hydrolytic process, PH, in 6-6.5, KOH and after organic acid, generates organic acid potash fertilizer, organic acid Plant growing accelerated by potash fertilizer；In neutrality after KOH control wood chip prehydrolysis, PH=7；

4th step, after insulation terminates, carries out steam bleeding batch turning, and the material poured out is i.e. the fertilizer needed for plant production, wood chip PH value is neutral, and after boiling end steam bleeding, residual liquid all recycles, it is achieved zero-emission.

Compared with prior art, beneficial effects of the present invention: first, compare traditional compost method, the time cycle is very Short；Second, rotary spherical digester can kill antibacterial, such culled wood is safer during transporting again；3rd, the present invention uses steaming The mode of ball steaming and decocting processes culled wood, can greatly accelerate the degradation speed of cellulose, lignin, and the method belongs to pioneering, is The method of the pulp-making of cotton linter in paper industry (is referred to invention entitled a kind of cotton linter and is impregnated with pulping by cooking newly side in advance Method, the patent of invention of Patent No. 201410149477.6) apply to herein；And traditional culled wood is produced as humus has The method that machine is fertile all uses compost, and compost fermentation was for up to 2-4 month, and the time cycle is oversize, and compost can not process greatly immediately Amount waste and old wood, the branch of afforestation pruning, the timber of woods field boundary samsara felling；And the KOH that the present invention uses is highly basic, alkalescence Prehydrolysis, accelerates the carrying out of wood chip prehydrolysis chemical reaction, accelerates organic dissolution；Pre-hydrolysis process can produce a small amount of Organic acid, PH, in 6-6.5, KOH and after organic acid, generates organic acid potash fertilizer, and plant growing accelerated by organic acid potash fertilizer；KOH is controlled In neutrality after wood chip prehydrolysis processed, PH=7；This point is the very important step of boiling method for spherical boiler of the present invention.In a word, employing is made The method that the method process culled wood of paper industry rotary spherical digester prehydrolysis obtains plant organic fertilizer is the most pioneering.

Accompanying drawing explanation

Fig. 1 is that the present invention produces 50000 tons of mulch treasured production procedure schematic diagrams per year.

Detailed description of the invention

The detailed description of the invention of the present invention is described below in conjunction with the accompanying drawings.

1, timber prehydrolysis is to produce the key technology that mulch is precious

1.1, timber tears up section:

Use building template disintegrating machine, wood sheet cutter, broken for culled wood section, through metering, 40 cubic metres of rotary spherical digesters, fill 8 Ton wood chip.

1.2, feed intake liquor ratio: 1:1*, i.e. 8 tons wood chips, uses 8T water, and the KOH concentration of water is 1.5g/L, i.e. add 12Kg in 8T water Potassium hydroxide, adds 1Kg dispersibility degradable orchil in 8T water.

1.3, the effect of KOH:

KOH is highly basic, alkalescence prehydrolysis, accelerates the carrying out of wood chip prehydrolysis chemical reaction, accelerate organic dissolution；

Can produce a small amount of organic acid in pre-hydrolysis process, PH, in 6-6.5, KOH and after organic acid, generates organic sylvite Fertilizer, plant growing accelerated by machine acid potash fertilizer；

In neutrality after KOH control wood chip prehydrolysis, PH=7, i.e. mulch treasured PH are neutral.

1.4, after wood chip and water feed intake, starting rotary spherical digester, rotary spherical digester operates, and enters steam and heats up, intensification 40min, pressure liter in ball To 0.1MPa, temperature reaches 120 DEG C, is incubated 40min.Heat up, in insulating process, cellulose and lignin made by basic hydrolysis and Occur expanded, pigment dissolution, hot water extraction thing dissolution, produce cellulose, lignin degradation, etc. series of physical and chemistry anti- Should, with the carrying out seeing that prehydrolysis is reacted, wood chip is brown, permeates with orchil, and wood chip, by brown, becomes maroon, brown Redness is i.e. the feature that mulch is precious, and wood chip, through 120 DEG C of high temperature sterilizations, kills all insects in wood chip, can use safely, Becoming loose after wood chip hydrolysis, concrete dynamic modulus, the product of such present invention is spread to when plant root provide whiterot fungi, yeast Deng the more contact position of microorganism, accelerating naturally becoming thoroughly decomposed of lignin, the time become thoroughly decomposed is the shortest, improves mulch treasured effect.

1.5, after insulation terminates, carrying out steam bleeding batch turning, wood chip pH value is neutral.After boiling end steam bleeding and steaming and decocting, residual liquid is complete Portion recycles, and realizes zero-emission.Prehydrolysis mulch is precious to be sold outside airing (water content 30-50%) weighs packing.

2, the use that mulch is precious

2.1, it is covered with bare soil and prevents airborne dust, moisture-retention soil, purify air,

2.2, glorify the landscape region, and protect trees root system, improvement soil, the quickening sturdy growth of flowers, plants and trees,

2.3, prehydrolysis wood flour makees fertilizer additive, flowers potting soil filler,

2.4, prehydrolysis wood chip does house pet bedding and padding, zoo animal activity field boundary ground bedding and padding, livestock culturing bedding and padding, virgin paradise field boundary Ground bedding and padding

2.5,2-7cm mulch treasured bed course, protects famous flower and tree, cool in summer and warm in winter, protects root system, nutrition root system.

2.6, prehydrolysis wood flour can do edible fungus cultivation matrix, fermentation bed etc.

2.7, mulch is precious through high temperature prehydrolysis sterilizing, parasite killing, can use in China, not limited by region System.

2.8, use gorgeous timber fertilizer throughout the year, in city, universities and colleges, rural area, street, park, etc. be seen everywhere, color Color pleasing, become unique natural, warm, harmonious scenery.

3, list of main equipment

Sell:

Sell and consider from environmental protection, mulch 1 yuan/Kg of treasured low cost, with cost price, supply gardens, forest farm, urban afforestation, thing Industry unit, universities and colleges, construction site, residential property, jerk and herd cultivation and use, with the listing of slightly above cost price, afforest for citizen Beautifying the environment, mulch treasured makes culled wood turn waste into wealth, return the earth, blue sky white clouds, blue mountains and green waters, people enjoy the Nature to In the best grace of more fork-like farm tool used in ancient China.

Claims

1. the method that culled wood prehydrolysis produces fertilizer, it is characterised in that comprise the steps of

The first step, timber tears up section:

Cutting into slices broken for culled wood with building template disintegrating machine and wood sheet cutter successively, through metering, 40 cubic metres of rotary spherical digesters are once Load 8 tons of broken wood chips；

Second step, feed intake liquor ratio:

8 tons of broken wood chips, use 8T water, and the KOH concentration of water is 1.5g/L, i.e. add 12Kg potassium hydroxide in 8T water, add in 8T water again Enter 1Kg dispersibility degradable orchil；

After 3rd step, wood chip and water feed intake, starting rotary spherical digester, rotary spherical digester operates, and enters steam and heats up, and intensification 40min, in ball, pressure is raised to 0.1MPa, temperature reaches 120 DEG C, is incubated 40min；In intensification, insulating process, cellulose and lignin are made by basic hydrolysis and are sent out Raw expanded, pigment dissolution, hot water extraction thing dissolution, produce cellulose, lignin degradation series of physical and chemical reaction, along with The carrying out of prehydrolysis reaction, wood chip is brown, permeates with orchil, and wood chip is become maroon by brown, and wood chip is through 120 DEG C high temperature sterilization, kills all insects in wood chip, can use safely；

The effect of KOH: KOH is highly basic, alkalescence prehydrolysis, accelerates the carrying out of wood chip prehydrolysis chemical reaction, accelerates organic Dissolution；Can produce a small amount of organic acid in pre-hydrolysis process, PH, in 6-6.5, KOH and after organic acid, generates organic acid potash fertilizer, Plant growing accelerated by organic acid potash fertilizer；In neutrality after KOH control wood chip prehydrolysis, PH=7；

4th step, after insulation terminates, carries out steam bleeding batch turning, and the material poured out is i.e. the fertilizer needed for plant production, wood chip pH value Being neutral, after boiling end steam bleeding, residual liquid all recycles, it is achieved zero-emission.