CN104140335B - The production method of perlite compression Nutrition Soil - Google Patents
The production method of perlite compression Nutrition Soil Download PDFInfo
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- CN104140335B CN104140335B CN201410396941.1A CN201410396941A CN104140335B CN 104140335 B CN104140335 B CN 104140335B CN 201410396941 A CN201410396941 A CN 201410396941A CN 104140335 B CN104140335 B CN 104140335B
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Abstract
The invention discloses the production method of a kind of perlite compression Nutrition Soil, its technical scheme is characterized by, first expanded perlite and mud are carried out acidification, then the dispensing that perlite compresses Nutrition Soil is stirred, compresses, be packaged as finished product after microwave low temperature sterilization.Perlite compression Nutrition Soil is made up of materials such as string, expanded vermiculite and the high hydroscopic resins after the mud after the expanded perlite after being acidified, acidifying, quick dissolved sodium silicate, polyvinyl alcohol, ferrous sulfate, peat, flower ceramsite, high viscous Concave-convex clay rod, biogas slurry, biogas residue, pulverizing.Containing substantial amounts of nitrogen, phosphorus, potassium, organic matter and various trace elements in perlite compression Nutrition Soil; it is provided that nutrient necessary to plant growth; reduce pathogen and the harm of pests on plants; the normal growth being conducive to plant is grown; preserving the ecological environment, the production method of perlite compression Nutrition Soil is applicable to produce the perlite compression Nutrition Soil of different formulations.
Description
Technical field
The present invention relates to Nutrition Soil, be specifically related to the production method of a kind of perlite compression Nutrition Soil.
Background technology
Perlite is the acidic lava of a kind of volcanic eruption, through the glassy rock of quick refrigeration, gains the name because it has pearl fissured structure, and perlite ore deposit includes perlite, obsidian and pitchstone.
Although perlite is widely used in every field, being industrial materials in the ascendant, but it is faced with formidable challenges in some field, in the near future, many materials will replace perlite.
Mud is the paste that a kind of easy corruption produced in sewage disposal process is smelly, it is enriched the pollutant in sewage, containing poisonous and harmful substances such as the nutriments such as a large amount of nitrogen, phosphorus and organic matter, viral micro-organisms, parasitic ovum, heavy metals, without effectively processing disposal, environment will be produced serious harm.
Sludge moisture content >=80% that municipal sewage plant produces, mud is mostly in alkalescence, and pH value is 8～10, should not be directly produced the product of recycling.
Investigation display, current China has the mud of 80% not to be effectively addressed, and even has and is simply discarded in the PE such as farmland, river greatly, becomes new pollution sources.
At present the most stable a large amount of mud processed have become the heavy burden of sewage treatment plant, and yield is the hugest, complicated component mud carries out properly processing safely so that it is innoxious, minimizing, resource, it has also become the most concerned key subjects.
Nutrition Soil be in order to meet seedling growth grow and particular formulation containing multiple mineral nutrition, loose ventilation, water conservation fertilizer-preserving ability is strong, without the soil of pest and disease damage.Typically formed with decomposed dung mixed preparing by fertile land for growing field crops soil, also have selected from import high-quality peat, coconut palm chaff, the Nutrition Soil mixed in specific proportions, but these Nutrition Soils are not through rational dispensing and strict sterilization, are unfavorable for that the normal growth of nursery stock is grown.
Owing to Nutrition Soil after treatment is relatively lighter and loose, the conventional products volume of Nutrition Soil is relatively large, is unfavorable for reducing producing and the cost of transport.
Summary of the invention
It is an object of the invention to overcome weak point in prior art, it is provided that the production method of a kind of perlite compression Nutrition Soil.
The production method of perlite compression Nutrition Soil: first expanded perlite and mud are carried out acidification, then the dispensing that perlite compresses Nutrition Soil is stirred, compresses, be packaged as finished product after microwave low temperature sterilization.
Perlite compression Nutrition Soil is made up of materials such as string, expanded vermiculite and the high hydroscopic resins after the mud after the expanded perlite after being acidified, acidifying, quick dissolved sodium silicate, polyvinyl alcohol, ferrous sulfate, peat, flower ceramsite, high viscous Concave-convex clay rod, biogas slurry, biogas residue, pulverizing.
During perlite roasting, softening degree is reached because being heated suddenly, the nature of glass combines the biggest pressure of water vapor output, rapid spatial expansion, when the nature of glass is cooled to below softening temperature, just congeal into cavity structure, form the expanded perlite of porous, perlite is expanded and becomes a kind of lightweight, multifunctional novel shaped material, and the present invention selects the expanded perlite after pulverizing, grain fineness≤0.5 millimeter of expanded perlite.
After the acidified process of expanded perlite, pH value controls, 5.0～7.0, to improve the utilization rate of expanded perlite, turn waste into wealth.
Attapulgite has the dispersion of uniqueness, good colloidal nature and the higher adsorption capacity such as saline and alkaline high temperature resistant, anti-, and has certain plasticity and cohesive force.Concave-convex clay rod after acidifying can adsorb foreign odor taste, heavy metal ion and carcinogen in mud, the nutritional labeling in mud is kept not run off, be conducive to growing of plant, the present invention selects the Concave-convex clay rod after pulverizing, grain fineness≤5 millimeter of Concave-convex clay rod, water content≤15% of Concave-convex clay rod.
Sulfuric acid selects concentration to be the concentrated sulfuric acid of 98%.
Quick dissolved sodium silicate is white powder material, can rapid solution in water, have that cohesive force is strong, intensity is higher, acid resistance, heat-resist, alkali resistance and the feature of poor water resistance.
Polyethenol series white solid, external form divides cotton-shaped, graininess, powder three kinds；Nonpoisonous and tasteless, graininess can be dissolved in 80--90 DEG C of water, powder other powders pre-dispersed after can dissolve at normal temperatures.There is preferable viscosity, polymerism, caking property and water-retaining property.
Hydroxypropyl methyl cellulose has the features such as thickening capabilities, salt discharge, pH stability, water-retaining property, dimensional stability, excellent film forming and the most resistance to enzyme, dispersiveness and caking property.
Anhydrous slufuric acid ferrous iron is white powder, ferrous sulfate containing the crystallization water is pale green crystals, the ferrous sulfate of 10% aqueous solution is acidity to reindeer moss, pH value is about 3.7, the most not only can neutralize the alkalescence of perlite compression Nutrition Soil, as the replenishers of plant ferro element, there is physiological disturbance in preventing and treating plant because of iron deficiency, make leaves of plants look chlorosis, it is also possible to be used for killing liver moss.
Sodium carbonate has the general character and the heat endurance of salt, and soluble in water, its aqueous solution is alkalescence, in the present invention the expanded perlite pH value after adjusting acidifying.
Magnesia has the general character of basic anhydride, belongs to Binder Materials, can improve the colloidal property of the expanded perlite after acidifying.
For tackling the significant challenge of water resource environment, China will continue to strengthen the investment of urban infrastructure.The energy-conserving and environment-protective requirement that day by day improves along with government, municipal public use continue being gradually improved of open, the propelling of Environmental Industry policy and investment and financing environment, wastewater treatment in China and regeneration cause will welcome Historic Opportunities for th e Development.
Containing a considerable amount of nitrogen, phosphorus, potassium and trace element in the mud of city domestic sewage treatment plant, through suitable PROCESS FOR TREATMENT, as cultivation medium soil, soil improvement material, also can be as the raw material making fertilizer, the present invention selects the mud that city domestic sewage treatment plant discharges, water content≤90% of mud.
High viscous Concave-convex clay rod is the Concave-convex clay rod that the processing technology using and improving viscosity of attapulgite clay produces, Concave-convex clay rod is after dispensing stirs, input grinding machine carries out abrasive dust for the viscous Concave-convex clay rod powder of height, grain fineness≤0.074 millimeter.
High viscous Concave-convex clay rod soil property is fine and smooth, has oily soapy, and light weight, property are crisp, fracture is conchoidal or irregular shape, and water imbibition is strong, has viscosity and plasticity time wet, viscosity >=2200mPa the s of high viscous Concave-convex clay rod powder, adhesive force is good, beneficially the bonding between raw material.
Peat is also called the peat composed of rotten mosses or peat soil, and peat venting capability is good, light weight, water holding, fertilizer conservation, beneficially microbial activities, strengthen biological property, nutritious, it is cultivation matrix, it it is again good soil mediator agent, and containing the highest organic matter, humic acid and nutrition, the peat after pulverizing be peat is dried after pulverize, peat grain fineness≤2 millimeter after pulverizing, water content≤15% of peat.
Gravel attapulgite flower ceramsite rough surface porous, it it is a kind of lightweight, intensity is big, water absorption rate is high flower ceramsite, gravel attapulgite flower ceramsite can be immersed in water to produce throughout the year and burst apart, and the most slowly discharging the nutrition required for flowers, the present invention selects the grain fineness of gravel attapulgite flower ceramsite to control at 1～3 millimeter.
Biogas slurry, through microbial decomposition, has killed harmful virus bacterium, containing the nutrient of various plants growth, abundant amino acid and various growth hormone, vitamin etc., is a kind of quick-acting and the long-lasting liquid fertilizer having both and becoming thoroughly decomposed.
Biogas residue, rich in organic matter, humus, nitrogen, phosphorus, potassium, micronutrient element, several amino acids, enzyme and beneficial microbe, can play the effect well improveing soil, water content≤15% of biogas residue.
String after pulverizing be the straw of crops, wood chip, bamboo bits and the plant such as leaf are dried after pulverize, plant fiber length≤15 millimeter after pulverizing, water content≤15% of string.
Vermiculite is after high-temperature roasting, and its volume energy expands rapidly several times to tens times, and the vermiculite after volumetric expansion, expanded vermiculite, is one of the lightest mineral；Expanded vermiculite is used as soil conditioner, can improve the structure of soil, and water storage preserves soil moisture, and improves gas permeability and the property of water-bearing of soil, plays the multiple actions such as fertilizer conservation, water conservation, water storage, ventilative and mineral fertilizer.
Perlite is expanded and becomes a kind of lightweight, multifunctional novel shaped material.Having the features such as apparent density is light, thermal conductivity factor is low, chemical stability is good, expanded perlite is fertilizer conservation, water conservation, aseptic, good permeability on agricultural, gardens.
The most thousands of up to the hundreds times of own wt times of the water absorbent rate of high hydroscopic resin, the present invention selects the water absorbent rate of high hydroscopic resin to be 100～300 times.
The technical scheme is that:
1, the production method of perlite compression Nutrition Soil: stir in the mixer of the dispensing input operating that (1) perlite is compressed Nutrition Soil, inputting boil down to perlite compression Nutrition Soil tablet in tablet press machine after stirring, the THICKNESS CONTROL of perlite compression Nutrition Soil tablet is at 5～30 millimeters；(2) perlite compresses Nutrition Soil tablet be transported in belt type microwave dry sterilizer carry out low temperature sterilization and be dried, temperature controls at 60～100 DEG C, time controls at 30～120 minutes, sterilizing and dried perlite compression Nutrition Soil tablet water content≤15%；(3) Nutrition Soil tablet is compressed in sterilizing and dried perlite, it is transported in insulated sterilizing storehouse, utilize the waste heat of self in perlite compression Nutrition Soil tablet, proceed sterilizing and be dried, after perlite compression Nutrition Soil tablet cooling, be packaged as the finished product of perlite compression Nutrition Soil.
The dispensing of perlite compression Nutrition Soil is made up of following component by weight percentage: expanded perlite after acidifying 15～35%, mud after acidifying 25～55%, high viscous Concave-convex clay rod 2～15%, biogas slurry soak after gravel attapulgite flower ceramsite 2～15%, pulverize after peat 2～15%, biogas residue 2～15%, pulverize after string 1～10%, expanded vermiculite 0.5～5% and high hydroscopic resin 0.1～5%.
2, the expanded perlite dispensing after acidifying is made up of following component by weight percentage: expanded perlite semi-finished product after acidifying 90～99%, quick dissolved sodium silicate 0.1～5%, polyvinyl alcohol 0.1～5%, hydroxypropyl methyl cellulose 0.01～3% and sodium carbonate 0～3%；The production method of the expanded perlite after acidifying: by abrasive dust, grain fineness≤0.074 millimeter in the expanded perlite dispensing input grinding machine after acidifying, the powder after abrasive dust is the expanded perlite after acidifying.
The production method of the expanded perlite semi-finished product after acidifying: (1) the dispensing of expanded perlite mixture is inputted in the mixer operated and stir, then dilute sulfuric acid is slowly added in expanded perlite mixture carry out acidification；(2), by the expanded perlite mixture after acidification, input twin rollers extruding is tablet, thickness≤3 millimeter of tablet；(3) tablet is transported to roasting in swinging drying oven, and roasting time is 1～3 hour, and sintering temperature controls at 250～350 DEG C, tablet water content≤5% after roasting, and the tablet after roasting is the expanded perlite semi-finished product after acidifying.
The dispensing of expanded perlite mixture is made up of following component by weight percentage: expanded perlite 68～92%, Concave-convex clay rod 5～30% and magnesia 0.1～3%；The dispensing of acidification is made up of following component by weight percentage: expanded perlite mixture 65～95% and dilute sulfuric acid 5～35%；The dispensing of dilute sulfuric acid is made up of following component by weight percentage: concentration is the concentrated sulfuric acid 1～10% and water 90～99% of 98%, concentration be 98% concentrated sulfuric acid percentage be weight percentage.
3, the dispensing of mud acidification is made up of following component by weight percentage: mud 68～95%, expanded perlite after acidifying 2～30% and ferrous sulfate 0.01～5%；The production method of the mud after acidifying: the dispensing of mud acidification is inputted in the mixer operated and stirs, spontaneous fermentation 3～14 days it are transported in fermentation vat after stirring, sludge pH after spontaneous fermentation controls 5.0～7.0, and the mud after spontaneous fermentation processes is the mud after being acidified.
4, the gravel attapulgite flower ceramsite that grain fineness is 1～3 millimeter is inputted immersion in biogas slurry pond, gravel attapulgite flower ceramsite is after soaking, can quickly absorb substantial amounts of biogas slurry, soak time controls at 30～60 minutes, take out the gravel attapulgite flower ceramsite after biogas slurry is soaked and carry out airing, gravel attapulgite flower ceramsite water content≤15% after airing.
The dispensing of gravel attapulgite flower ceramsite is made up of following component by weight percentage: high viscous Concave-convex clay rod powder 1～10%, Concave-convex clay rod mine tailing 5～25%, red bentonite in powder 5～20%, mud 45～65%, diatomite mine tailing 5～20% and powdered rice hulls 1～10%；
The production method of gravel attapulgite flower ceramsite: inputting Squeezinggranulator granulation after (1) the dispensing of gravel attapulgite flower ceramsite being added stirrer for mixing, particle diameter controls at 8～25 millimeters, and particle length controls at 10～40 millimeters；(2) the particle after granulation inputs internal heating type revolution roasting in kilns, and sintering temperature controls at 550～850 DEG C, and roasting time controlled at 1～6 hour；(3) being inputted by the particle after roasting and pulverize in disintegrating machine as gravel particle and sieve, grain fineness controls at 1～12 millimeter, for gravel attapulgite flower ceramsite.
Gravel attapulgite flower ceramsite is to use by " gravel attapulgite flower ceramsite " filed in 10 days November in 2011 of the present inventor, and Chinese patent Authorization Notice No. is: CN
102503372 B, authorized announcement date: on 04 17th, 2013.
5, high viscous Concave-convex clay rod is the Concave-convex clay rod that the processing technology using and improving viscosity of attapulgite clay produces, it is characterised in that from the Concave-convex clay rod of mining area exploitation, need the weathering through 30～120 days；Modification processing method is: calculated in weight percent, takes the Concave-convex clay rod after weathering 94～98%, is uniformly added into 2～6% sodium carbonate, in common input fermentation vat, adds clear water and carry out soaking ageing, and soak time is 72～120 hours；Take the Concave-convex clay rod after immersion, input mixer is stirred, and by the Concave-convex clay rod after stirring, being extruded into thin slice through extruder, its THICKNESS CONTROL is at 0.5～2 millimeter, by Concave-convex clay rod thin slice, carry out airing, the Concave-convex clay rod thin slice after airing, its water content≤15%；Dispensing is calculated in weight percent: Concave-convex clay rod after airing 94～98%, high hydroscopic resin 0.5～5% and cellulose 0.5～3%, above-mentioned dispensing is stirred, inputs in grinding machine and carry out abrasive dust, grain fineness≤0.074 millimeter after stirring.
Above-mentioned production technology is to use " to be improved the processing technology of viscosity of attapulgite clay " by filed in 20 days June in 2005 of the present inventor, and Chinese patent Authorization Notice No. is: CN
1317067C, authorized announcement date: on May 23rd, 2007.
The detection method of high viscous Concave-convex clay rod: take 28.0g Concave-convex clay rod powder sample, add in the suspension cup of homogenizer, add 372g water, suspension cup is placed on homogenizer, stir 20 minutes under the rotating speed of 11000 revs/min, again by the beaker pouring 250mL through high-speed stirred sample suspension into, using NDJ-1 type rotation viscometer to carry out testing the viscosity of suspension, tested viscosity value >=2200 mPa s is high viscous Concave-convex clay rod.
Heretofore described PCm is all weight percentage.
After the acidified process of perlite, pH value controls 5.0～7.0, can improve perlitic utilization rate, not only can bring good economic benefit, environmental benefit and social benefit, and can realize turning waste into wealth.Expanded perlite after acidifying has the feature of preferable thixotropy, plasticity and caking property.
After the acidified process of mud, pH value controls, 5.0～7.0, to improve the nutrition in the utilization rate of mud, beneficially plant overall absorption mud, it is ensured that plant can grow by normal fast-growth.
The fresh sludge that city domestic sewage treatment plant produces is mostly in alkalescence, pH value is 8～10, fresh sludge adds the expanded perlite after acidifying and after ferrous sulfate carries out acidification, mud is faintly acid, and pH value controls 5.0～7.0, can be with spontaneous fermentation under the normal temperature condition of temperature >=20 DEG C, during spontaneous fermentation, N P and K and organic matter nutriment in mud have obtained further raising, and foul smell significantly reduces, and its inherent moisture also will significantly decline.
Sterilizing and dried perlite are compressed Nutrition Soil tablet be transported in insulated sterilizing storehouse, utilize waste heat to continue perlite compression Nutrition Soil carry out sterilizing and be dried, can continue to kill perlite compression Nutrition Soil stays excrement colibacillus group, roundworm egg, germ and the insect such as nematode, can also the weed seed in mud and peat be steamed dead, it is to avoid the germination again of weed seed.
Ferrous sulfate not only can the acid-base value of conditioning of mud, moreover it is possible to promotes chlorophyll formation, can prevent and treat the yellows that flowers and trees cause because of iron deficiency, is the acid indispensable element of flowers and trees of happiness.
Gravel attapulgite flower ceramsite is inputted in biogas slurry pond and soak, a large amount of biogas slurry inside gravel attapulgite flower ceramsite, will be sucked, to increase effective nutritional labeling of perlite compression Nutrition Soil；Gravel attapulgite flower ceramsite can also play regulation soil aggregate in perlite compression Nutrition Soil, coordinate moisture and gas permeability, beneficially crop root stretching, extension and normal growth.
The mud directly utilizing city domestic sewage treatment plant is primary raw material, acidified modification, stir, compress and produce after low temperature sterilization a kind of sheet perlite compression Nutrition Soil, small product size is than the volume-diminished less than 25% before compression, greatly reduce production and the cost of transportation of product, increase the economic benefit of enterprise.
The using method of perlite compression Nutrition Soil: perlite is compressed Nutrition Soil and puts in water and soak after 5 minutes, the perlite compression Nutrition Soil of sheet is quickly reduced to loose Nutrition Soil, and the weight of the weight ratio former compression Nutrition Soil of Nutrition Soil loose after water suction adds more than 5 times.
Perlite compression Nutrition Soil can be used for green land in town system or the construction in forest land, suburb and maintenance processes, and as cultivation medium soil, soil improvement material, quality meets " GB/T
23486-2009 urban wastewater treatment firm sludge treatment afforestation shale " national standard.
The production method using the present invention produces perlite compression Nutrition Soil; production technology is simple; need not individually mud to be concentrated, recuperate under medical treatment, be dehydrated, stablize, mummification or the process of burning; whole production process does not has waste gas, dust and dry sound; be conducive to preserving the ecological environment, it is to avoid surrounding enviroment are caused secondary pollution.
Containing substantial amounts of nitrogen, phosphorus, potassium, organic matter and various trace elements in perlite compression Nutrition Soil, be that a kind of nutrition is complete, fertilizer efficiency is high, nontoxic, aseptic, harmless, odorless and the good high-quality Nutrition Soil of water retention property, it is provided that nutrient necessary to plant growth, do not use chemical fertilizer and chemical pesticide, the normal growth reducing pathogen and the harm of pests on plants, beneficially plant is grown.
Perlite compression Nutrition Soil can also be used to produce variously-shaped perlite compression planting brick.
The various discarded objects of a large amount of employing in the dispensing of perlite compression Nutrition Soil, not only contribute to improve resource utilization, turn waste into wealth, moreover it is possible to reduce land occupation, protection and environment purification, save the energy, reduction production cost, increase economic efficiency.
The production method of perlite compression Nutrition Soil is applicable to produce the perlite compression Nutrition Soil of different formulations.
Detailed description of the invention
Below in conjunction with embodiment, the invention will be further described:
1, the production method of perlite compression Nutrition Soil: stir in the mixer of the dispensing input operating that (1) perlite is compressed Nutrition Soil, inputting boil down to perlite compression Nutrition Soil tablet in tablet press machine after stirring, the THICKNESS CONTROL of perlite compression Nutrition Soil tablet is at 25 millimeters；(2) perlite compressing Nutrition Soil tablet be transported in belt type microwave dry sterilizer carry out low temperature sterilization and be dried, temperature controls at 70～90 DEG C, and the time controls at 50 minutes, sterilizing and dried perlite compression Nutrition Soil tablet water content≤14%；(3) Nutrition Soil tablet is compressed in sterilizing and dried perlite, it is transported in insulated sterilizing storehouse, utilize the waste heat of self in perlite compression Nutrition Soil tablet, proceed sterilizing and be dried, after perlite compression Nutrition Soil tablet cooling, be packaged as the finished product of perlite compression Nutrition Soil.
The dispensing of perlite compression Nutrition Soil is made up of following component by weight percentage: the mud 48% after expanded perlite 24% after acidifying, acidifying, high viscous Concave-convex clay rod 8%, biogas slurry soak after gravel attapulgite flower ceramsite 5%, pulverize after peat 5%, biogas residue 4%, pulverize after string 4%, expanded vermiculite 1.2% and high hydroscopic resin 0.8%.
2, the expanded perlite dispensing after acidifying is made up of following component by weight percentage: expanded perlite semi-finished product 97%, quick dissolved sodium silicate 1.2%, polyvinyl alcohol 1.1%, hydroxypropyl methyl cellulose 0.7% and the sodium carbonate 0% after acidifying；The production method of the expanded perlite after acidifying: by abrasive dust, grain fineness≤0.074 millimeter in the expanded perlite dispensing input grinding machine after acidifying, the powder after abrasive dust is the expanded perlite after acidifying.
The production method of the expanded perlite semi-finished product after described acidifying: (1) the dispensing of expanded perlite mixture is inputted in the mixer operated and stir, then dilute sulfuric acid is slowly added in expanded perlite mixture carry out acidification；(2), by the expanded perlite mixture after acidification, input twin rollers extruding is tablet, thickness≤3 millimeter of tablet；(3) tablet is transported to roasting in swinging drying oven, and roasting time is 2 hours, and sintering temperature controls at 300～350 DEG C, tablet water content≤5% after roasting, and the tablet after roasting is the expanded perlite semi-finished product after acidifying.
The dispensing of expanded perlite mixture is made up of following component by weight percentage: expanded perlite 74%, Concave-convex clay rod 24.5% and magnesia 1.5%；The dispensing of acidification is made up of following component by weight percentage: expanded perlite mixture 78% and dilute sulfuric acid 22%；The dispensing of dilute sulfuric acid is made up of following component by weight percentage: concentration is the concentrated sulfuric acid 5% and the water 95% of 98%.
3, the dispensing of mud acidification is made up of following component by weight percentage: the expanded perlite 21.2% after mud 78%, acidifying and ferrous sulfate 0.8%；The production method of the mud after acidifying: the dispensing of mud acidification is inputted in the mixer operated and stirs, spontaneous fermentation 8 days in fermentation vat it are transported to after stirring, sludge pH after spontaneous fermentation controls 5.5～7.0, and the mud after spontaneous fermentation processes is the mud after being acidified.
4, the gravel attapulgite flower ceramsite that grain fineness is 1～3 millimeter is inputted immersion in biogas slurry pond, soak time controls at 45 minutes, take out the gravel attapulgite flower ceramsite after biogas slurry is soaked and carry out airing, gravel attapulgite flower ceramsite water content≤12% after airing.
Claims (5)
1. the production method of a perlite compression Nutrition Soil, it is characterized in that, (1) the mixer of the dispensing input operating that perlite is compressed Nutrition Soil stirs, inputting boil down to perlite compression Nutrition Soil tablet in tablet press machine after stirring, the THICKNESS CONTROL of perlite compression Nutrition Soil tablet is at 5～30 millimeters；(2) perlite compresses Nutrition Soil tablet be transported in belt type microwave dry sterilizer carry out low temperature sterilization and be dried, temperature controls at 60～100 DEG C, time controls at 30～120 minutes, sterilizing and dried perlite compression Nutrition Soil tablet water content≤15%；(3) Nutrition Soil tablet is compressed in sterilizing and dried perlite, it is transported in insulated sterilizing storehouse, utilize the waste heat of self in perlite compression Nutrition Soil tablet, proceed sterilizing and be dried, after perlite compression Nutrition Soil tablet cooling, be packaged as the finished product of perlite compression Nutrition Soil；
The dispensing of described perlite compression Nutrition Soil is made up of following component by weight percentage: expanded perlite after acidifying 15～35%, mud after acidifying 25～55%, high viscous Concave-convex clay rod 2～15%, biogas slurry soak after gravel attapulgite flower ceramsite 2～15%, pulverize after peat 2～15%, biogas residue 2～15%, pulverize after string 1～10%, expanded vermiculite 0.5～5% and high hydroscopic resin 0.1～5%；
Expanded perlite dispensing after acidifying is made up of following component by weight percentage: expanded perlite semi-finished product after acidifying 90～99%, quick dissolved sodium silicate 0.1～5%, polyvinyl alcohol 0.1～5%, hydroxypropyl methyl cellulose 0.01～3% and sodium carbonate 0～3%；The production method of the expanded perlite after acidifying: by abrasive dust, grain fineness≤0.074 millimeter in the expanded perlite dispensing input grinding machine after acidifying, the powder after abrasive dust is the expanded perlite after acidifying；
The production method of the expanded perlite semi-finished product after acidifying: (1) the dispensing of expanded perlite mixture is inputted in the mixer operated and stir, then dilute sulfuric acid is slowly added in expanded perlite mixture carry out acidification；(2), by the expanded perlite mixture after acidification, input twin rollers extruding is tablet, thickness≤3 millimeter of tablet；(3) tablet is transported to roasting in swinging drying oven, and roasting time is 1～3 hour, and sintering temperature controls at 250～350 DEG C, tablet water content≤5% after roasting, and the tablet after roasting is the expanded perlite semi-finished product after acidifying；
The dispensing of expanded perlite mixture is made up of following component by weight percentage: expanded perlite 68～92%, Concave-convex clay rod 5～30% and magnesia 0.1～3%；The dispensing of acidification is made up of following component by weight percentage: expanded perlite mixture 65～95% and dilute sulfuric acid 5～35%；The dispensing of dilute sulfuric acid is made up of following component by weight percentage: concentration is the concentrated sulfuric acid 1～10% and water 90～99% of 98%；
The dispensing of mud acidification is made up of following component by weight percentage: mud 68～95%, expanded perlite after acidifying 2～30% and ferrous sulfate 0.01～5%；The production method of the mud after acidifying: the dispensing of mud acidification is inputted in the mixer operated and stirs, spontaneous fermentation 3～14 days it are transported in fermentation vat after stirring, sludge pH after spontaneous fermentation controls 5.0～7.0, and the mud after spontaneous fermentation processes is the mud after being acidified.
The production method of perlite compression Nutrition Soil the most according to claim 1, it is characterized in that, gravel attapulgite flower ceramsite after biogas slurry immersion: the gravel attapulgite flower ceramsite that grain fineness is 1～3 millimeter is inputted in biogas slurry pond and soaks, soak time controls at 30～60 minutes, take out the gravel attapulgite flower ceramsite after biogas slurry is soaked and carry out airing, gravel attapulgite flower ceramsite water content≤15% after airing；
The dispensing of gravel attapulgite flower ceramsite is made up of following component by weight percentage: high viscous Concave-convex clay rod powder 1～10%, Concave-convex clay rod mine tailing 5～25%, red bentonite in powder 5～20%, mud 45～65%, diatomite mine tailing 5～20% and powdered rice hulls 1～10%；The production method of gravel attapulgite flower ceramsite: inputting Squeezinggranulator granulation after (1) the dispensing of gravel attapulgite flower ceramsite being added stirrer for mixing, particle diameter controls at 8～25 millimeters, and particle length controls at 10～40 millimeters；(2) the particle after granulation inputs internal heating type revolution roasting in kilns, and sintering temperature controls at 550～850 DEG C, and roasting time controlled at 1～6 hour；(3) being inputted by the particle after roasting and pulverize in disintegrating machine as gravel particle and sieve, grain fineness controls at 1～12 millimeter, for gravel attapulgite flower ceramsite.
The production method of perlite compression Nutrition Soil the most according to claim 1, it is characterised in that peat grain fineness≤2 millimeter after pulverizing, water content≤15% of peat, water content≤15% of biogas residue, plant fiber length≤15 millimeter after pulverizing, water content≤15% of string.
The production method of perlite compression Nutrition Soil the most according to claim 1, it is characterised in that grain fineness≤0.5 millimeter of expanded perlite, grain fineness≤5 millimeter of Concave-convex clay rod, water content≤15% of Concave-convex clay rod.
The production method of perlite compression Nutrition Soil the most according to claim 1, it is characterised in that water content≤90% of mud.
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