CN104119187B - The production method of meerschaum mine tailing compression Nutrition Soil - Google Patents
The production method of meerschaum mine tailing compression Nutrition Soil Download PDFInfo
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- CN104119187B CN104119187B CN201410394597.2A CN201410394597A CN104119187B CN 104119187 B CN104119187 B CN 104119187B CN 201410394597 A CN201410394597 A CN 201410394597A CN 104119187 B CN104119187 B CN 104119187B
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- 229910052624 sepiolite Inorganic materials 0.000 title claims abstract description 132
- 235000019355 sepiolite Nutrition 0.000 title claims abstract description 132
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- 235000016709 nutrition Nutrition 0.000 title claims abstract description 84
- 230000035764 nutrition Effects 0.000 title claims abstract description 82
- 238000007906 compression Methods 0.000 title claims abstract description 66
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- 238000004519 manufacturing process Methods 0.000 title claims abstract description 32
- 229960000892 attapulgite Drugs 0.000 claims abstract description 71
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Abstract
The invention discloses the production method of a kind of meerschaum mine tailing compression Nutrition Soil, its technical scheme is characterized by, first mud is carried out acidification and natural fermentation, then the dispensing of meerschaum mine tailing compression Nutrition Soil is stirred, compresses, be packaged as finished product after microwave low temperature sterilization.Meerschaum mine tailing compression Nutrition Soil is made up of materials such as Plant fiber, expanded vermiculite, expanded perlite and the High hydrophilous resins after the mud after the meerschaum mine tailing after being acidified, acidifying, quick dissolved sodium silicate, ferrous sulfate, peat, flower ceramsite, high viscous attapulgite clay, biogas slurry, pulverizing.Containing substantial amounts of nitrogen, phosphorus, potassium, organic matter and various trace elements in meerschaum mine tailing compression Nutrition Soil; it is provided that nutrient necessary to plant growing; 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 meerschaum mine tailing compression Nutrition Soil is applicable to produce the meerschaum mine tailing 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 meerschaum mine tailing compression Nutrition Soil.
Background technology
Sepiolite clay is a kind of clay with meerschaum as main component, is associated with attapulgite, montmorillonite, Talcum etc., and non-clay mineral tramp material then has quartz, calcite, celestite etc..
There is substantial amounts of meerschaum mine tailing in meerschaum mining area, can well be developed.
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 nutrient substance such as a large amount of nitrogen, phosphorus and Organic substance, 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 public environment such as farmland, river greatly, becomes new polluter.
At present the mud of a large amount of non-stabilized treatment has 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 bran, 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 meerschaum mine tailing compression Nutrition Soil.
The production method of meerschaum mine tailing compression Nutrition Soil: first mud is carried out acidification and natural fermentation, then the dispensing of meerschaum mine tailing compression Nutrition Soil is stirred, compresses, be packaged as finished product after microwave low temperature sterilization.
Meerschaum mine tailing compression Nutrition Soil is made up of materials such as Plant fiber, expanded vermiculite, expanded perlite and the High hydrophilous resins after the mud after the meerschaum mine tailing after being acidified, acidifying, quick dissolved sodium silicate, polyvinyl alcohol, ferrous sulfate, peat, flower ceramsite, high viscous attapulgite clay, biogas slurry, biogas residue, pulverizing.
Meerschaum is the magnesia silicate clay mineral that a kind of natural fiber is aqueous, the structures shape that meerschaum is special it there is good physical and chemical performance, preferable rheological characteristic, heat stability, porous, strong adsorptivity and the Large ratio surface of improvement can be processed so that it is possess the good condition making catalyst carrier.The present invention selects the meerschaum mine tailing after pulverizing, fineness of the particles≤0.5 millimeter of meerschaum mine tailing.
After the acidified process of meerschaum mine tailing, pH value controls, 5.0～7.0, to improve the utilization rate of meerschaum mine tailing, turn waste into wealth.
Attapulgite has the dispersion of uniqueness, good colloidal nature and the higher absorbability such as saline and alkaline high temperature resistant, anti-, and has certain plasticity and cohesive force.Attapulgite clay after the acidify 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 the growth promoter of plant, the present invention selects the attapulgite clay after pulverizing, fineness of the particles≤5 millimeter of attapulgite clay, water content≤15% of attapulgite clay.
Sulphuric acid selects concentration to be the concentrated sulphuric 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 property and the most resistance to enzyme, dispersibility and caking property.
Anhydrous slufuric acid ferrous iron is white powder, ferrous sulfate containing water of crystallization is pale green crystals, the ferrous sulfate of 10% aqueous solution is acidity to Herba Cladoniae rangiferinae, pH value is about 3.7, the most not only can neutralize the alkalescence of meerschaum mine tailing compression Nutrition Soil, as the supplement of plant ferro element, there is physiological disturbance in preventing and treating plant because of iron deficiency, make leaves of plants color chlorosis, it is also possible to be used for killing lichen.
Sodium carbonate has the general character and the heat stability of salt, and soluble in water, its aqueous solution is alkalescence, in the present invention the meerschaum mine tailing pH value after adjusting acidifying.
Magnesium oxide has the general character of basic anhydride, belongs to Binder Materials, can improve the colloidal property of the meerschaum mine tailing 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 attapulgite clay is the attapulgite clay that the processing technique using and improving viscosity of attapulgite clay produces, attapulgite clay is after dispensing stirs, input grinding machine carries out pulverizing for the viscous attapulgite clay powder of height, fineness of the particles≤0.074 millimeter.
High viscous attapulgite clay soil property is fine and smooth, has oily soapy, and light weight, property are crisp, fracture is conchoidal or irregular shape, and water absorption is strong, has viscosity and plasticity time wet, viscosity >=2200mPa the s of high viscous attapulgite clay 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 fineness of the particles≤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 fineness of the particles 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 aminoacid 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.
Plant fiber after pulverizing be the straw stalk of crops, wood flour, bamboo bits and the plant such as leaves are dried after pulverize, plant fiber length≤15 millimeter after pulverizing, water content≤15% of Plant fiber.
Vermiculitum is after high-temperature roasting, and its volume energy expands rapidly several times to tens times, and the Vermiculitum 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 breathability 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, heat conductivity 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 hydrophilous resin, the present invention selects the water absorbent rate of High hydrophilous resin to be 100～300 times.
The technical scheme is that:
1, the production method of meerschaum mine tailing compression Nutrition Soil: (1) will stir in the blender of the dispensing input operating of meerschaum mine tailing compression Nutrition Soil, inputting boil down to meerschaum mine tailing compression Nutrition Soil tablet in tablet machine after stirring, the THICKNESS CONTROL of meerschaum mine tailing compression Nutrition Soil tablet is at 5～30 millimeters；(2) it is transported in belt type microwave dry sterilizer carry out low temperature sterilization and be dried by meerschaum mine tailing compression Nutrition Soil tablet, temperature controls at 60～100 DEG C, time controls at 30～120 minutes, sterilizing and dried meerschaum mine tailing compression Nutrition Soil tablet water content≤15%；(3) Nutrition Soil tablet is compressed in sterilizing and dried meerschaum mine tailing, it is transported in insulated sterilizing storehouse, utilize the waste heat of self in meerschaum mine tailing compression Nutrition Soil tablet, proceed sterilizing and be dried, after the compression Nutrition Soil tablet cooling of meerschaum mine tailing, being packaged as the finished product of meerschaum mine tailing compression Nutrition Soil.
The dispensing of meerschaum mine tailing compression Nutrition Soil is made up of following component by weight percentage: meerschaum mine tailing after acidifying 15～35%, mud after acidifying 25～55%, high viscous attapulgite clay 2～15%, biogas slurry soak after gravel attapulgite flower ceramsite 2～15%, pulverize after peat 2～15%, biogas residue 2～15%, pulverize after Plant fiber 1～10%, expanded vermiculite 0.5～5%, expanded perlite 0.5～5% and High hydrophilous resin 0.1～5%.
2, the meerschaum mine tailing dispensing after acidifying is made up of following component by weight percentage: meerschaum mine tailing 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 meerschaum mine tailing after acidifying: by pulverizing, fineness of the particles≤0.074 millimeter in the meerschaum mine tailing dispensing input grinding machine after acidifying, the powder after pulverizing is the meerschaum mine tailing after acidifying.
The production method of the meerschaum mine tailing semi-finished product after acidifying: (1) the dispensing of meerschaum Tailings mixture is inputted in the blender operated and stir, then dilute sulfuric acid is slowly added in meerschaum Tailings mixture carry out acidification；(2), by the meerschaum Tailings 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 meerschaum mine tailing semi-finished product after acidifying.
The dispensing of meerschaum Tailings mixture is made up of following component by weight percentage: meerschaum mine tailing 68～92%, attapulgite clay 5～30% and magnesium oxide 0.1～3%；The dispensing of acidification is made up of following component by weight percentage: meerschaum Tailings 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 sulphuric acid 1～10% and water 90～99% of 98%, concentration be 98% concentrated sulphuric acid percentage ratio be weight percentage.
3, the dispensing of mud acidification is made up of following component by weight percentage: mud 68～95%, meerschaum mine tailing 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 blender operated and stirs, natural fermentation 3～14 days it are transported in fermentation vat after stirring, sludge pH after natural fermentation controls 5.0～7.0, and the mud after natural fermentation processes is the mud after being acidified.
4, the gravel attapulgite flower ceramsite that fineness of the particles 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 dry in the sun, gravel attapulgite flower ceramsite water content≤15% after dry in the sun.
The dispensing of gravel attapulgite flower ceramsite is made up of following component by weight percentage: high viscous attapulgite clay powder 1～10%, attapulgite clay mine tailing 5～25%, red bentonite in powder 5～20%, mud 45～65%, kieselguhr mine tailing 5～20% and powdered rice hulls 1～10%；
The production method of gravel attapulgite flower ceramsite: inputting Squeezinggranulator pelletize 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 granule after pelletize 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 granule after roasting and pulverize in disintegrating machine as gravel granule and sieve, fineness of the particles 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 attapulgite clay is the attapulgite clay that the processing technique using and improving viscosity of attapulgite clay produces, it is characterised in that from the attapulgite clay of mining area exploitation, need the weathering through 30～120 days；Modification processing method is: calculated in weight percent, takes the attapulgite clay 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 attapulgite clay after immersion, input blender is stirred, and by the attapulgite clay after stirring, being extruded into thin slice through extruder, its THICKNESS CONTROL is at 0.5～2 millimeter, by attapulgite clay thin slice, carry out dry in the sun, the attapulgite clay thin slice after dry in the sun, its water content≤15%；Dispensing is calculated in weight percent: attapulgite clay after dry in the sun 94～98%, High hydrophilous resin 0.5～5% and cellulose 0.5～3%, above-mentioned dispensing is stirred, inputs in grinding machine and carry out pulverizing, fineness of the particles≤0.074 millimeter after stirring.
Above-mentioned production technology is to use " to be improved the processing technique 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 attapulgite clay: take 28.0g attapulgite clay 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 rotating cylinder viscometer to carry out testing the viscosity of suspension, tested viscosity value >=2200 mPa s is high viscous attapulgite clay.
Heretofore described PCm is all weight percentage.
After the acidified process of meerschaum mine tailing, pH value controls 5.0～7.0, can improve the utilization rate of meerschaum mine tailing, not only can bring good economic benefit, environmental benefit and social benefit, and can realize turning waste into wealth.Meerschaum mine tailing 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 meerschaum mine tailing after acidifying and after ferrous sulfate carries out acidification, mud is faintly acid, and pH value controls 5.0～7.0, can be with natural fermentation under the normal temperature condition of temperature >=20 DEG C, during natural fermentation, N P and K and Organic substance nutrient substance in mud have obtained further raising, and foul smell significantly reduces, and its inherent moisture also will significantly decline.
Sterilizing and dried meerschaum mine tailing are compressed Nutrition Soil tablet be transported in insulated sterilizing storehouse, utilize waste heat to continue meerschaum mine tailing compression Nutrition Soil carry out sterilizing and be dried, can continue to kill meerschaum mine tailing compression Nutrition Soil stays excrement colibacillus group, roundworm egg, pathogenic bacteria and the insect such as nematicide, 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 HUAMU causes because of iron deficiency, is the acid indispensable element of HUAMU 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 meerschaum mine tailing compression Nutrition Soil；Gravel attapulgite flower ceramsite can also play regulation soil aggregate in meerschaum mine tailing compression Nutrition Soil, coordinate moisture and breathability, 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 lamellar meerschaum mine tailing 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 meerschaum mine tailing compression Nutrition Soil: meerschaum mine tailing compression Nutrition Soil is put into after soaking 5 minutes in water, the meerschaum mine tailing compression Nutrition Soil of lamellar 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.
Meerschaum mine tailing 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 meerschaum mine tailing compression Nutrition Soil; production technology is simple; need not individually mud to be concentrated, recuperate under medical treatment, be dehydrated, stablize, mummification or the course of processing 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 meerschaum mine tailing 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 growing, do not use chemical fertilizer and chemical pesticide, the normal growth reducing pathogen and the harm of pests on plants, beneficially plant is grown.
Meerschaum mine tailing compression Nutrition Soil can also be used to produce variously-shaped meerschaum mine tailing compression planting brick.
The various garbages of a large amount of employing in the dispensing of meerschaum mine tailing 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 meerschaum mine tailing compression Nutrition Soil is applicable to produce the meerschaum mine tailing 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 meerschaum mine tailing compression Nutrition Soil: (1) will stir in the blender of the dispensing input operating of meerschaum mine tailing compression Nutrition Soil, inputting boil down to meerschaum mine tailing compression Nutrition Soil tablet in tablet machine after stirring, the THICKNESS CONTROL of meerschaum mine tailing compression Nutrition Soil tablet is at 26 millimeters；(2) it is transported in belt type microwave dry sterilizer carry out low temperature sterilization and be dried by meerschaum mine tailing compression Nutrition Soil tablet, temperature controls at 70～90 DEG C, time controls at 50 minutes, sterilizing and dried meerschaum mine tailing compression Nutrition Soil tablet water content≤15%；(3) Nutrition Soil tablet is compressed in sterilizing and dried meerschaum mine tailing, it is transported in insulated sterilizing storehouse, utilize the waste heat of self in meerschaum mine tailing compression Nutrition Soil tablet, proceed sterilizing and be dried, after the compression Nutrition Soil tablet cooling of meerschaum mine tailing, being packaged as the finished product of meerschaum mine tailing compression Nutrition Soil.
The dispensing of meerschaum mine tailing compression Nutrition Soil is made up of following component by weight percentage: the mud 52% after meerschaum mine tailing 18% after acidifying, acidifying, high viscous attapulgite clay 8%, biogas slurry soak after gravel attapulgite flower ceramsite 6%, pulverize after peat 5%, biogas residue 5%, pulverize after Plant fiber 4%, expanded vermiculite 0.8%, expanded perlite 0.7% and High hydrophilous resin 0.5%.
2, the meerschaum mine tailing dispensing after acidifying is made up of following component by weight percentage: meerschaum mine tailing 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 meerschaum mine tailing after acidifying: by pulverizing, fineness of the particles≤0.074 millimeter in the meerschaum mine tailing dispensing input grinding machine after acidifying, the powder after pulverizing is the meerschaum mine tailing after acidifying.
The production method of the meerschaum mine tailing semi-finished product after acidifying: (1) the dispensing of meerschaum Tailings mixture is inputted in the blender operated and stir, then dilute sulfuric acid is slowly added in meerschaum Tailings mixture carry out acidification；(2), by the meerschaum Tailings 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 meerschaum mine tailing semi-finished product after acidifying.
The dispensing of meerschaum Tailings mixture is made up of following component by weight percentage: meerschaum mine tailing 76%, attapulgite clay 22.5% and magnesium oxide 1.5%；The dispensing of acidification is made up of following component by weight percentage: meerschaum Tailings mixture 74% and dilute sulfuric acid 26%；The dispensing of dilute sulfuric acid is made up of following component by weight percentage: concentration is concentrated sulphuric acid 5% and the water 95% of 98%.
3, the dispensing of mud acidification is made up of following component by weight percentage: the meerschaum mine tailing 19.2% after mud 80%, acidifying and ferrous sulfate 0.8%；The production method of the mud after acidifying: the dispensing of mud acidification is inputted in the blender operated and stirs, natural fermentation 6 days in fermentation vat it are transported to after stirring, sludge pH after natural fermentation controls 5.5～7.0, and the mud after natural fermentation processes is the mud after being acidified.
4, the gravel attapulgite flower ceramsite that fineness of the particles is 1～3 millimeter is inputted immersion in biogas slurry pond, soak time controls at 50 minutes, take out the gravel attapulgite flower ceramsite after biogas slurry is soaked and carry out dry in the sun, gravel attapulgite flower ceramsite water content≤14% after dry in the sun.
Claims (5)
1. the production method of a meerschaum mine tailing compression Nutrition Soil, it is characterized in that, (1) will the blender of the dispensing input operating of meerschaum mine tailing compression Nutrition Soil stir, inputting boil down to meerschaum mine tailing compression Nutrition Soil tablet in tablet machine after stirring, the THICKNESS CONTROL of meerschaum mine tailing compression Nutrition Soil tablet is at 5～30 millimeters；(2) it is transported in belt type microwave dry sterilizer carry out low temperature sterilization and be dried by meerschaum mine tailing compression Nutrition Soil tablet, temperature controls at 60～100 DEG C, time controls at 30～120 minutes, sterilizing and dried meerschaum mine tailing compression Nutrition Soil tablet water content≤15%；(3) Nutrition Soil tablet is compressed in sterilizing and dried meerschaum mine tailing, it is transported in insulated sterilizing storehouse, utilize the waste heat of self in meerschaum mine tailing compression Nutrition Soil tablet, proceed sterilizing and be dried, after the compression Nutrition Soil tablet cooling of meerschaum mine tailing, being packaged as the finished product of meerschaum mine tailing compression Nutrition Soil；
The dispensing of described meerschaum mine tailing compression Nutrition Soil is made up of following component by weight percentage: meerschaum mine tailing after acidifying 15～35%, mud after acidifying 25～55%, high viscous attapulgite clay 2～15%, biogas slurry soak after gravel attapulgite flower ceramsite 2～15%, pulverize after peat 2～15%, biogas residue 2～15%, pulverize after Plant fiber 1～10%, expanded vermiculite 0.5～5%, expanded perlite 0.5～5% and High hydrophilous resin 0.1～5%；
Meerschaum mine tailing dispensing after acidifying is made up of following component by weight percentage: meerschaum mine tailing 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 meerschaum mine tailing after acidifying: by pulverizing, fineness of the particles≤0.074 millimeter in the meerschaum mine tailing dispensing input grinding machine after acidifying, the powder after pulverizing is the meerschaum mine tailing after acidifying；
The production method of the meerschaum mine tailing semi-finished product after acidifying: (1) the dispensing of meerschaum Tailings mixture is inputted in the blender operated and stir, then dilute sulfuric acid is slowly added in meerschaum Tailings mixture carry out acidification；(2), by the meerschaum Tailings 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 meerschaum mine tailing semi-finished product after acidifying；
The dispensing of meerschaum Tailings mixture is made up of following component by weight percentage: meerschaum mine tailing 68～92%, attapulgite clay 5～30% and magnesium oxide 0.1～3%；The dispensing of acidification is made up of following component by weight percentage: meerschaum Tailings 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 sulphuric acid 1～10% and water 90～99% of 98%；
The dispensing of the mud after acidifying is made up of following component by weight percentage: mud 68～95%, meerschaum mine tailing after acidifying 2～30% and ferrous sulfate 0.01～5%；The production method of the mud after acidifying: is stirred in the blender that the dispensing input of the mud after acidifying has been operated, natural fermentation 3～14 days it are transported in fermentation vat after stirring, sludge pH after natural fermentation controls 5.0～7.0, and the mud after natural fermentation processes is the mud after being acidified.
The production method of meerschaum mine tailing 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 fineness of the particles 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 dry in the sun, gravel attapulgite flower ceramsite water content≤15% after dry in the sun；
The dispensing of gravel attapulgite flower ceramsite is made up of following component by weight percentage: high viscous attapulgite clay powder 1～10%, attapulgite clay mine tailing 5～25%, red bentonite in powder 5～20%, mud 45～65%, kieselguhr mine tailing 5～20% and powdered rice hulls 1～10%；
The production method of gravel attapulgite flower ceramsite: inputting Squeezinggranulator pelletize 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 granule after pelletize 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 granule after roasting and pulverize in disintegrating machine as gravel granule and sieve, fineness of the particles controls at 1～12 millimeter, for gravel attapulgite flower ceramsite.
The production method of meerschaum mine tailing compression Nutrition Soil the most according to claim 1, it is characterised in that peat fineness of the particles≤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 Plant fiber.
The production method of meerschaum mine tailing compression Nutrition Soil the most according to claim 1, it is characterised in that fineness of the particles≤0.5 millimeter of meerschaum mine tailing, fineness of the particles≤5 millimeter of attapulgite clay, water content≤15% of attapulgite clay.
The production method of meerschaum mine tailing compression Nutrition Soil the most according to claim 1, it is characterised in that water content≤90% of mud.
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| CN107409738B (en) * | 2017-09-14 | 2020-12-01 | 秦振巧 | Planting and culturing method for improving vegetable quality |
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| CN111393140A (en) * | 2020-03-25 | 2020-07-10 | 中冶武汉冶金建筑研究院有限公司 | Method for preparing novel ceramsite by using iron tailings and biogas residues |
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| CN101880199A (en) * | 2010-03-26 | 2010-11-10 | 蒋文兰 | Attapulgite paper pulp floral clay and production method thereof |
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