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 mica mine tailing compression nutrition soil.
The production method of mica mine tailing compression nutrition soil: first mica mine tailing and mud are carried out acidification, then the batching that mica mine tailing compresses nutrition soil carries out stirring, compresses, be packaged as finished product after microwave temperature sterilization.
Mica mine tailing compression nutrition soil is made up of materials such as the vegetable fibre after the mica mine tailing after acidifying, the mud after acidifying, quick dissolved sodium silicate, polyvinyl alcohol, ferrous sulfate, peat, flower ceramsite, high sticky attapulgite clay, natural pond liquid, natural pond slag, pulverizing, expanded vermiculite, pearlstone and High hydrophilous resins.
Mica has the characteristics such as good elasticity, toughness, insulativity, high temperature resistant, acid and alkali-resistance, corrosion-resistant, strong adhesion and satin luster, and the present invention selects the mica mine tailing after pulverizing, particle fineness��0.5 millimeter of mica mine tailing.
Attapulgite has unique dispersion, good colloidal property and the higher adsorptive power such as saline and alkaline high temperature resistant, anti-, and has certain plasticity-and cohesive force. Concavo-convex excellent stone clay after the acidify can adsorb the foreign odor taste in mud, heavy metal ion and carcinogenic substance, the nutritive ingredient in mud is kept not run off, be conducive to growing of plant, the present invention selects the attapulgite clay after pulverizing, particle fineness��5 millimeter of attapulgite clay, water content��15% of attapulgite clay.
Sulfuric acid select concentration be 98% the vitriol oil.
Quick dissolved sodium silicate is white pulverulent material, can be dissolved in water fast, has that cohesive force is strong, intensity is higher, the feature of acid resistance, good heat resistance, alkali resistance and poor water resistance.
Polyethenol series white solid, external form divides cotton-shaped, particulate state, powder shape three kinds; Nonpoisonous and tasteless, particulate state can be dissolved in 80--90 DEG C of water, pulverous other powders pre-dispersed after can dissolve at normal temperatures. There is good viscosity, polymerizability, cohesiveness and water-retentivity.
Vltra tears has thickening capabilities, salt discharge, pH stability, water-retentivity, dimensional stability, excellent film-forming properties and resistance to enzymatic, dispersion property and the feature such as cohesiveness widely.
Anhydrous slufuric acid ferrous iron is white powder, ferrous sulfate containing crystal water is pale green crystals, reindeer moss is acid by the ferrous sulfate of 10% aqueous solution, pH value is about 3.7, not only can neutralizing the alkalescence of mica mine tailing compression nutrition soil in the present invention, as the supplement of plant ferro element, there is physiological disturbance because of scarce iron in control plant, make leaf look chlorosis, it is also possible to be used for killing liver moss.
Sodium carbonate has the general character and the thermostability of salt, soluble in water, its aqueous solution in alkalescence, in the present invention for adjusting the mica mine tailing pH value after acidifying.
Magnesium oxide has the general character of basic oxide, belongs to gelling material, can improve the colloidal property of the mica 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, the continuation of municipal public use that day by day improve along with government are open, the propelling of environment industry policy and being gradually improved of investment and financing environment, wastewater treatment in China and regeneration cause will welcome historical development opportunity.
Containing a considerable amount of nitrogen, phosphorus, potassium and trace element in the mud of city domestic sewage treatment plant, through suitable art breading, as cultivation medium soil, soil improvement material, also can be used 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 sticky attapulgite clay is the attapulgite clay that the complete processing adopting and improving viscosity of attapulgite clay is produced, attapulgite clay stirs after evenly through batching, input grinding machine carries out mill powder for high sticky attapulgite clay powder, particle fineness��0.074 millimeter.
High sticky attapulgite clay soil property is fine and smooth, has oily soapy, and light weight, property are crisp, fracture is shell shape or irregular shape, and water-absorbent is strong, tool viscosity and plasticity-time wet, viscosity >=2200mPa the s of high sticky attapulgite clay powder, sticking power is good, is conducive to 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, hold water, fertilizer conservation, be conducive to microbial activities, strengthen biological property, nutritious, it is cultivation matrix, it it is again good soil mediator agent, and containing very high organic matter, humic acid and nutrition, the peat after pulverizing pulverizes after being dried by peat, peat particle fineness��2 millimeter after pulverizing, water content��15% of peat.
Gravel attapulgite flower ceramsite surface irregularity porous, it it is the flower ceramsite that a kind of weight is light, intensity is big, water-intake rate is high, gravel attapulgite flower ceramsite can be immersed in water throughout the year and can not produce to burst apart, and the nutrition required for continuous slow releasing flowers, the present invention selects the particle fineness of gravel attapulgite flower ceramsite to control at 1��3 millimeter.
Natural pond liquid, through microbial decomposition, has killed harmful virus bacterium, the nutrient containing various plants growth, abundant amino acid and various tethelin, VITAMIN etc., is that a kind of quick-acting and long-acting property have both and the liquid fertilizer that becomes thoroughly decomposed.
Natural pond slag is rich in organic matter, soil ulmin, nitrogen, phosphorus, potassium, micronutrient element, multiple amino acids, enzyme class and beneficial microorganism, can play the effect of well improvement soil, water content��15% of natural pond slag.
Vegetable fibre after pulverizing pulverizes after being dried by the plants such as the straw of farm crop, wood chip, bamboo bits and leaf, plant fiber length��15 millimeter after pulverizing, water content��15% of vegetable fibre.
Vermiculite after high-temperature roasting, its volume energy undergoes rapid expansion several times to tens times, the vermiculite after volumetric expansion, expanded vermiculite, is one of the lightest in the world mineral; Expanded vermiculite is used as soil improvement agent, can improve the structure of soil, and Chu Shui preserves soil moisture, it is to increase the ventilation property of soil and aquosity, plays the multiple actions such as fertilizer conservation, Bao Shui, Chu Shui, ventilative and mineral manure.
Perlite becomes a kind of lightweight, Multifucntional material through expansion. Having the features such as apparent density is light, thermal conductivity is low, chemical stability is good, pearlstone is fertilizer conservation, Bao Shui, aseptic, good permeability on agricultural, gardens.
The water absorbent rate of High hydrophilous resin can reach hundreds of times even thousands of times of own wt, and the present invention selects the water absorbent rate of High hydrophilous resin to be 100��300 times.
The present invention is achieved by following technical proposals:
1, the production method of mica mine tailing compression nutrition soil: stir in the stirrer that the batching input that (1) mica mine tailing compresses nutrition soil operates, stirring and compress for mica mine tailing compresses nutrition soil flap after evenly in input tabletting machine, the gauge control of mica mine tailing compression nutrition soil flap is at 5��30 millimeters; (2) mica mine tailing compresses nutrition soil flap be transported in belt type microwave dry sterilizer to carry out temperature sterilization and drying, temperature controls at 60��100 DEG C, time controling was at 30��120 minutes, and sterilizing and dried mica mine tailing compress nutrition soil flap water content��15%; (3) by sterilizing and dried mica mine tailing compression nutrition soil flap, it is transported in insulated sterilizing storehouse, utilize self waste heat in mica mine tailing compression nutrition soil flap, proceeding sterilizing and drying, mica mine tailing compression nutrition soil flap is packaged as the finished product of mica mine tailing compression nutrition soil after cooling.
The batching that mica mine tailing compresses nutrition soil is made up of following component by weight percentage: the vegetable fibre 1��10% after the gravel attapulgite flower ceramsite 2��15% after the mica mine tailing 15��35% after acidifying, the mud 25��55% after acidifying, high sticky attapulgite clay 2��15%, natural pond immersion bubble, the peat 2��15% after pulverizing, natural pond slag 2��15%, pulverizing, expanded vermiculite 0.5��5%, pearlstone 0.5��5% and High hydrophilous resin 0.1��5%.
2, mica mine tailing batching after acidifying is made up of following component by weight percentage: mica mine tailing work in-process 90��99% after acidifying, quick dissolved sodium silicate 0.1��5%, polyvinyl alcohol 0.1��5%, Vltra tears 0.01��3% and sodium carbonate 0��3%;
The production method of the mica mine tailing after acidifying: grinding powder, particle fineness��0.074 millimeter by the mica mine tailing batching input grinding machine after acidifying, the meal after mill powder is the mica mine tailing after acidifying.
The half-finished production method of mica mine tailing after acidifying: stir in the stirrer (1) input of the batching of mica Tailings mixture operated, then dilute sulphuric acid is slowly added in mica Tailings mixture and carry out acidification; (2), by the mica Tailings mixture after acidification, input twin rollers extruding is flap, thickness��3 millimeter of flap; (3) flap is transported to roasting in rotary type stoving oven, and roasting time is 1��3 hour, and maturing temperature controls at 250��350 DEG C, flap water content��5% after roasting, and the flap after roasting is the mica mine tailing work in-process after acidifying.
The batching of mica Tailings mixture is made up of following component by weight percentage: mica mine tailing 68��92%, attapulgite clay 5��30% and magnesium oxide 0.1��3%; The batching of acidification is made up of following component by weight percentage: mica Tailings mixture 65��95% and dilute sulphuric acid 5��35%; The batching of dilute sulphuric acid is made up of following component by weight percentage: concentration is the vitriol oil 1��10% and the water 90��99% of 98%, concentration be 98% vitriol oil per-cent be weight percentage.
3, the batching of mud acidification is made up of following component by weight percentage: mica mine tailing 2��30% after mud 68��95%, acidifying and ferrous sulfate 0.01��5%;
The production method of the mud after acidifying: is stirred in the stirrer that the input of the batching of mud acidification has been operated, it is transported in fermentation vat spontaneous fermentation 3��14 days after stirring, sludge pH after spontaneous fermentation controls 5.0��7.0, and the mud after spontaneous fermentation process is the mud after acidifying.
4, the gravel attapulgite flower ceramsite that particle fineness is 1��3 millimeter is inputted immersion in the liquid pool of natural pond, gravel attapulgite flower ceramsite is after soaking, the natural pond liquid that meeting fast absorption is a large amount of, soak time controls at 30��60 minutes, take out the gravel attapulgite flower ceramsite after natural pond immersion is steeped and carry out airing, gravel attapulgite flower ceramsite water content��15% after airing.
The batching of gravel attapulgite flower ceramsite is made up of following component by weight percentage: high sticky attapulgite clay powder 1��10%, attapulgite clay mine tailing powder 5��25%, red bentonite in powder 5��20%, mud 45��65%, diatomite mine tailing powder 5��20% and powdered rice hulls 1��10%;
The production method of gravel attapulgite flower ceramsite: input Squeezinggranulator granulation after (1) the batching 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), by the particle input internally heated type revolution roasting in kilns after granulation, maturing temperature controls at 550��850 DEG C, and roasting time controls at 1��6 hour; (3) being gravel particle by pulverizing in the particle input crusher after roasting and sieve, particle fineness controls at 1��12 millimeter, is gravel attapulgite flower ceramsite.
Gravel attapulgite flower ceramsite adopts to apply for " gravel attapulgite flower ceramsite " by the present inventor on November 10th, 2011, and Chinese patent Authorization Notice No. is: CN102503372B, authorized announcement date: on 04 17th, 2013.
5, high sticky attapulgite clay is the attapulgite clay that the complete processing adopting and improving viscosity of attapulgite clay is produced, it is characterised in that, from the attapulgite clay of mining area exploitation, it is necessary to through the weathering of 30��120 days; Modification processing method is: calculate by weight percentage, gets the attapulgite clay after weathering 94��98%, evenly adds 2��6% sodium carbonate, in common input fermentation vat, adds clear water and carries out soaking ageing, and soak time is 72��120 hours; Get the attapulgite clay after immersion, input stirrer stirs, and by the attapulgite clay after stirring, be extruded into thin slice through extrusion machine, its gauge control at 0.5��2 millimeter, by attapulgite clay thin slice, carry out airing, the attapulgite clay thin slice after airing, its water content��15%; Batching is calculated by weight percentage: attapulgite clay 94��98% after airing, High hydrophilous resin 0.5��5% and Mierocrystalline cellulose 0.5��3%, above-mentioned batching is stirred, and stirs and carries out mill powder, particle fineness��0.074 millimeter after evenly in input grinding machine.
Above-mentioned production technique adopts to apply for " improving the complete processing of viscosity of attapulgite clay " on June 20th, 2005 by the present inventor, and Chinese patent Authorization Notice No. is: CN1317067C, authorized announcement date: on May 23rd, 2007.
The detection method of high sticky attapulgite clay: get 28.0g attapulgite clay powder sample, add in the suspension cup of homogenizer, add 372g water again, 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 stirring sample suspension into, it may also be useful to NDJ-1 type rotational viscosimeter carries out the viscosity of test suspension liquid, tested viscosity value >=2200mPa s is high sticky attapulgite clay.
The per-cent of water content described in the present invention is all weight percentage.
After the acidified process of mica mine tailing, pH value controls 5.0��7.0, it is possible to improves the utilization ratio of mica mine tailing, not only can bring good economic benefit, environmental benefit and social benefit, and can realize turning waste into wealth.Mica mine tailing after acidifying has the feature of good thixotropy, plasticity-and cohesiveness.
After the acidified process of mud, pH value controls 5.0��7.0, it is possible to improves the utilization ratio of mud, is conducive to the nutrition in plant overall absorption mud, it is ensured that plant can grow by normal fast-growth.
The fresh mud that city domestic sewage treatment plant produces is mostly in alkalescence, pH value is 8��10, fresh mud adds the mica mine tailing after acidifying and after ferrous sulfate carries out acidification, mud is slightly acidic, and pH value controls 5.0��7.0, can spontaneous fermentation under the normal temperature condition of temperature >=20 DEG C, in spontaneous fermentation process, N P and K and organism nutritive substance in mud obtain further raising, and stench taste obviously reduces, and its inherent moisture also will significantly decline.
Sterilizing and dried mica mine tailing compression nutrition soil flap are transported in insulated sterilizing storehouse, utilize waste heat to continue that mica mine tailing is compressed nutrition soil and carry out sterilizing and drying, can continue to kill in mica mine tailing compression nutrition soil stay excrement colibacillus group, roundworm egg, germ and the insect such as nematode, weed seed in mud and peat can also be steamed dead, avoid the germination again of weed seed.
Ferrous sulfate not only can the potential of hydrogen of conditioning of mud, moreover it is possible to impels chlorophyll formation, can prevent and treat the yellows that flowers and trees cause because of scarce iron, is the element that the acid flowers and trees of happiness are indispensable.
Being inputted by gravel attapulgite flower ceramsite in the liquid pool of natural pond and soak, gravel attapulgite flower ceramsite inside will suck a large amount of natural ponds liquid, to increase effective nutritive ingredient of mica mine tailing compression nutrition soil; Gravel attapulgite flower ceramsite compresses can also play in nutrition soil at mica mine tailing and regulates soil aggregate, coordination moisture and ventilation property, is conducive to crop root to stretch and normal growth.
Directly utilize the mud of city domestic sewage treatment plant for main raw material, the mica mine tailing compression nutrition soil of a kind of sheet is produced after acidified modification, stirring, compression and temperature sterilization, small product size is than the volume-diminished less than 25% before compression, greatly reduce production and the transportation cost of product, increase the economic benefit of enterprise.
The using method of mica mine tailing compression nutrition soil: mica mine tailing is compressed nutrition soil and puts into water immersion after 5 minutes, the mica mine tailing compression nutrition soil of sheet is reduced to loose nutrition soil very soon, and the weight of the former compression nutrition soil of weight ratio of nutrition soil loose after water suction adds more than 5 times.
Mica mine tailing compression nutrition soil can be used for construction and the maintenance processes in green land in town system or forest land, suburb, as cultivation medium soil, soil improvement material, quality meets the national standard of " GB/T23486-2009 urban wastewater treatment firm sludge disposal afforestation shale ".
The production method of the present invention is adopted to produce mica mine tailing compression nutrition soil; production technique is simple; do not need to be concentrated by mud separately, recuperate under medical treatment, dewater, stablize, the course of processing of mummification or burning; whole production process does not have waste gas, dust and dry sound; be conducive to preserving the ecological environment, avoid and surrounding enviroment are caused secondary pollution.
Containing a large amount of nitrogen, phosphorus, potassium, organic matter and various trace elements in mica mine tailing compression nutrition soil, be that a kind of nutrition is complete, fertilizer efficiency height, nontoxic, aseptic, harmless, odorless and the good high-quality nutrition soil of water retention property, can provide plant-growth necessary nutritive element, do not use chemical fertilizer and chemical pesticide, minimizing pathogenic bacteria and insect, to the harm of plant, are conducive to the normal growth of plant to grow.
Mica mine tailing compression nutrition soil can also be used to produce the mica mine tailing compression nutrition brick of different shape.
The various waste of a large amount of employing in the batching of mica mine tailing compression nutrition soil, is not only conducive to improving resource utilization, turns waste into wealth, moreover it is possible to reduce land occupation, and protection and environment purification, save the energy, reduction production cost, it is to increase economic benefit.
The production method of mica mine tailing compression nutrition soil is applicable to produce the mica mine tailing compression nutrition soil of different ingredients.