CN106047298A - Special multifunctional composite snow-melting deicing agent for farmland prepared from biogas residues and manufacturing method thereof - Google Patents

Abstract

The invention discloses a special multifunctional composite snow-melting deicing agent for farmland prepared from biogas residues. Blue algae and biogas residues are swollen and filled by a terpene phenolic resin emulsion to reinforce the cell walls; the resin is filled in the gaps among the staggered fibers to enhance the combination among the fibers; more micropores are introduced after carbonization, so the adsorption capacity is improved; wood vinegar used instead of glacial acetic acid and modified dolomite powder used as a calcium magnesium precursor are mixed to prepare the snow melting agent, and finally, the snow melting agent and an antiskid aid are subjected to coating and granulation and are dried to obtain the composite snow-melting deicing agent with low cost; and after melting when contacting ice and snow, the composite snow-melting deicing agent can quickly lower the freezing point and absorb heat to increase the snow melting speed; and the residual solution can be adsorbed by the antiskid aid to avoid corroding the pavement. The composite snow-melting deicing agent effectively solves the problem of biogas residue accumulation, and has wider application range. The composite snow-melting deicing agent can also be used as a snow melting agent for farmland. The composite snow-melting deicing agent can adsorb available elements in soil after falling to the soil, thereby enhancing the fertilizer utilization ratio in the soil.

Description

A kind of farmland special-purpose multifunctional composite snow-melting deicer utilizing biogas residue to prepare and Manufacture method

Technical field

The present invention relates to Snow Agent technical field, particularly relate to a kind of farmland special-purpose multifunctional utilizing biogas residue to prepare multiple Close snow melt deicer and preparation method thereof.

Background technology

Winter, ice and snow was the factor group having a strong impact on transportation, and icy road accumulated snow is to affect China mostly The important safety hidden danger that district's traffic in winter runs, makes traffic capacity decline to a great extent, and easily causes vehicle accident, the soonest Speed ice-melt snow removing becomes China's traffic in winter undoubtedly and runs the unobstructed key issue needing solution badly, and Snow Agent produces therewith.

Snow Agent as its name suggests, is used to reduce the salt of ice and snow freezing point, and its effect is deicing or snow melting, because of its use simply, Deicing snow melt is effective waits many merits, mainly as the snow removing of the facilities such as urban road, highway, airport, harbour, bridge Changing ice, some Snow Agent also act as agent for quick melting and the antifreezing admixture etc. of architectural engineering winter construction ice dissolution.Snow Agent Road, concrete component, bridge facility can not there be is infringement after using, flowers, plants and trees, crops, animal and right can not be destroyed People has infringement.At present, the villaumite type agent for melting ice and removing snow with sodium chloride as representative is widely used in different kinds of roads ice-melt snow removing, And the environmental problem using chloride Snow Agent to cause for a long time highlights the most day by day, the chloride ion corrosiveness to road and bridge is right The impact of plant growing, causes the extensive concern of people to problems such as the pollutions of water body.The eighties in 20th century, U.S. DOT is public Department develops environment-friendly type calcium acetate magnesium salt (CMA) Snow Agent first, its low corrosivity and to the less harmful of vegetation by the world Recognized by.But, due to the price problem of its raw material acetic acid so that CMA Snow Agent is difficult to Rapid Popularization, China is only at aircraft The minority places such as field use.Therefore, use cheap acetic acid and calcium, magnesium predecessor to research and develop the calcium acetate of low cost Magnesium salt Snow Agent, becomes the important subject eradicating the harm of chloride salt Snow Agent.

" preparation of a kind of low-cost environment-friendly Snow Agent and performance study " selected works are selected by biomass waste material (straw, wood Bits etc.) the russet waste liquid of generation during carbonization fuel gas, biodegradable and low cost wood vinegar is raw material, Its acetic acid content of wood vinegar raw material used by this method is up to 6%-12%, and possibly together with a small amount of propanoic acid (about 0.6%), formic acid is (about 0.3%), phenol, tar etc., have studied the process of the CMA class Snow Agent of preparation low cost, products obtained therefrom is low-carbon (LC) mixing Calcium magnesium carboxylate, by a series of performance tesies of Snow Agent are shown, its snow melt temperature low (minimum up to-34 DEG C), snow melt Efficiency is high (up to 208.3 cm³Snow/g Snow Agent), to the no corrosion such as metal, flowers and plants and infringement, the performance of each side is equal It is better than the villaumite Snow Agent such as sodium chloride.

Current existing Snow Agent has powder and two kinds of forms of liquid, and liquid is sprayed on ice and snow face with atomizing type melts Changing ice and snow, be uniformly dispersed but easily infiltrate into road surface, can bring certain corrosion-damaged, being directly spread on snow face of powder is melted Snow, but intensity is low and density little Yi is blown to four winds, and causes disperseing uneven, and snow melt effect declines, it is necessary to is improved and makes The snow melt deicer that intensity is high, had not only been difficult to be blown to four winds by car crushing difficulty but also have preferably heat absorption, absorption property, had accelerated snow melt Deicing speed also has low corrosion, pollutes the spies such as little, little to plant injury, combination property is high, function diversification, storage convenience Property.

Summary of the invention

The object of the invention is contemplated to make up the defect of prior art, it is provided that a kind of farmland utilizing biogas residue to prepare is special many Functional composite snow-melting deicer and preparation method thereof.

The present invention is achieved by the following technical solutions:

A kind of farmland special-purpose multifunctional composite snow-melting deicer utilizing biogas residue to prepare, is prepared by the raw materials in: Wood vinegar 67-69, dolomite dust 7-9, calcareous Calx 4-6, coffee carbon 5-7, cyanophyceae 22-24, biogas residue 18-20, terpenes phenolic aldehyde tree Fat liquor 16-18, Radix Acaciae senegalis 3-5, sweet potato powder 5-6, magnesium sulfate 1-3, ramee 7-8.

The manufacture method of described a kind of farmland special-purpose multifunctional composite snow-melting deicer utilizing biogas residue to prepare, including Following steps:

(1) cyanophyceae, biogas residue are dried to moisture content < 25%, attrition grinding crosses 200 mesh dusting covers, add terpene phenolic resin emulsion, Coffee carbon stirring and evenly mixing stand 12-14 hour, pelletize, put in 80-100 DEG C of baking oven be dried 10-12 hour, under nitrogen protection Sinter 20-30 minute in 700-1000 DEG C, obtain anti-skidding auxiliary agent；

(2) calcareous lime under agitation is mixed, add dolomite dust, magnesium sulfate ultrasonic grinding 10-15 minute, obtain mixed material；

(3) mixed material that step (2) prepares is put into that to regulate pH in wood vinegar be about 8.5 at room temperature to react 2-3 hour, It is filtered to remove insoluble matter, carries out filtrate concentrating, evaporating；

(4) the anti-skidding auxiliary agent stirring and evenly mixing that step (3) material and step (1) are prepared, add Radix Acaciae senegalis, sweet potato powder and He grinds 20-30 minute at residual components, adds suitable quantity of water pelletize, oven drying at low temperature, discharging.

The invention have the advantage that cyanophyceae, biogas residue are enhanced it after terpene phenolic resin emulsion swollen, filling by the present invention Cell wall and resin are filled in staggered interfibrous space, enhance fiber and interfibrous combination, introduce more after carbonization Micropore, absorbability is improved, and the present invention substitutes glacial acetic acid with wood vinegar simultaneously, with modified dolomite dust as calcium and magnesium Both predecessors are mixed to prepare Snow Agent, more prepared Snow Agent and anti-skidding auxiliary agent are wrapped up pelletize, dry prepared compound Snow melt deicer low cost, can reduce rapidly freezing point, and the acceleration Snow-melting speed that can absorb heat after meeting ice dissolution, debris can be prevented Sliding auxiliary agent adsorption preventing corrosion road surface, the method for the present invention the most effectively solution biogas residue is piled up problem and is on the one hand expanded use Scope, it is also possible to use as farmland Snow Agent, it can adsorb the useful element in soil, reduce the loss of fertilizer after landing, Improve the utilization rate of fertilizer in soil.

Detailed description of the invention

A kind of farmland special-purpose multifunctional composite snow-melting deicer utilizing biogas residue to prepare, by the raw material system of following weight portion Become: wood vinegar 67, dolomite dust 7, calcareous Calx 4, coffee carbon 5, cyanophyceae 22, biogas residue 18, terpene phenolic resin emulsion 16, I Uncle's natural gum 3, sweet potato powder 5, magnesium sulfate 1, ramee 7.

The manufacture method of described a kind of farmland special-purpose multifunctional composite snow-melting deicer utilizing biogas residue to prepare, including Following steps:

(1) cyanophyceae, biogas residue are dried to moisture content < 25%, attrition grinding crosses 200 mesh dusting covers, add terpene phenolic resin emulsion, Coffee carbon stirring and evenly mixing stand 12-14 hour, pelletize, put in 80-100 DEG C of baking oven be dried 10-12 hour, under nitrogen protection Sinter 20-30 minute in 700-1000 DEG C, obtain anti-skidding auxiliary agent；

(2) calcareous lime under agitation is mixed, add dolomite dust, magnesium sulfate ultrasonic grinding 10-15 minute, obtain mixed material；

(3) mixed material that step (2) prepares is put into that to regulate pH in wood vinegar be about 8.5 at room temperature to react 2-3 hour, It is filtered to remove insoluble matter, carries out filtrate concentrating, evaporating；

(4) the anti-skidding auxiliary agent stirring and evenly mixing that step (3) material and step (1) are prepared, add Radix Acaciae senegalis, sweet potato powder and He grinds 20-30 minute at residual components, adds suitable quantity of water pelletize, oven drying at low temperature, discharging.

Its snow melt temperature of composite snow-melting deicer utilizing the present invention to prepare is minimum up to-42 DEG C, and snow melt efficiency is up to 212.5cm³Snow/g Snow Agent, to the no corrosion such as metal, flowers and plants and infringement, the performance of each side is superior to the chlorine such as sodium chloride Salt Snow Agent.

Claims (2)

1. the farmland special-purpose multifunctional composite snow-melting deicer that a kind utilizes biogas residue to prepare, it is characterised in that by following weight The raw material of part is made: wood vinegar 67-69, dolomite dust 7-9, calcareous Calx 4-6, coffee carbon 5-7, cyanophyceae 22-24, biogas residue 18- 20, terpene phenolic resin emulsion 16-18, Radix Acaciae senegalis 3-5, sweet potato powder 5-6, magnesium sulfate 1-3, ramee 7-8.

The system of a kind of farmland special-purpose multifunctional composite snow-melting deicer utilizing biogas residue to prepare the most according to claim 1 Make method, it is characterised in that comprise the following steps:

(1) cyanophyceae, biogas residue are dried to moisture content < 25%, attrition grinding crosses 200 mesh dusting covers, add terpene phenolic resin emulsion, Coffee carbon stirring and evenly mixing stand 12-14 hour, pelletize, put in 80-100 DEG C of baking oven be dried 10-12 hour, under nitrogen protection Sinter 20-30 minute in 700-1000 DEG C, obtain anti-skidding auxiliary agent；

(2) calcareous lime under agitation is mixed, add dolomite dust, magnesium sulfate ultrasonic grinding 10-15 minute, obtain mixed material；

(3) mixed material that step (2) prepares is put into that to regulate pH in wood vinegar be about 8.5 at room temperature to react 2-3 hour, It is filtered to remove insoluble matter, carries out filtrate concentrating, evaporating；

(4) the anti-skidding auxiliary agent stirring and evenly mixing that step (3) material and step (1) are prepared, add Radix Acaciae senegalis, sweet potato powder and He grinds 20-30 minute at residual components, adds suitable quantity of water pelletize, oven drying at low temperature, discharging.