CN104119189B - The production method of attapulgite clay mine tailing compression Nutrition Soil - Google Patents
The production method of attapulgite clay mine tailing compression Nutrition Soil Download PDFInfo
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Abstract
The invention discloses the production method of a kind of attapulgite clay mine tailing compression Nutrition Soil, the main points of its technical scheme are, first attapulgite clay mine tailing and mud are carried out acidification, then the batching of attapulgite clay mine tailing compression Nutrition Soil is carried out stirring, compress, be packaged as finished product after microwave temperature sterilization; Attapulgite clay mine tailing compression Nutrition Soil is made up of materials such as vegetable fibre, expanded vermiculite and the High hydrophilous resins after the mud after Concavo-convex excellent stone clay after the acidify mine tailing, acidifying, quick dissolved sodium silicate, ferrous sulfate, peat, flower ceramsite, high sticky attapulgite clay, natural pond liquid, pulverizing.Containing a large amount of nitrogen, phosphorus, potassium, organic matter and various trace elements in attapulgite clay mine tailing compression Nutrition Soil; can provide plant-growth necessary nutritive element; reduce the harm of pathogenic bacteria and pests on plants; the normal growth being conducive to plant is grown; preserve the ecological environment, be applicable to the attapulgite clay mine tailing compression Nutrition Soil producing different ingredients.
Description
Technical field
The present invention relates to acidification, be specifically related to the production method of a kind of attapulgite clay mine tailing compression Nutrition Soil.
Background technology
Mineral Resources in China 80% is intergrowth mineral, a large amount of valuable resource retains among mine tailing, tailings impoundment needs to take a large amount of soil, a lot of Tailings Dam exceeds the time limit or excess load uses, even violation operation, make Tailings Dam there is great potential safety hazard, serious threat is caused to people's property of surrounding area and life security.
Attapulgite clay is except containing attapulgite, normal containing mineral such as wilkinite, kaolinite, hydromica, sepiolite, quartz, opal and carbonate, there is a large amount of attapulgite clay mine tailings in Attapulgite clay district, can well be developed.
Mud is the smelly paste of a kind of easy corruption that produces in sewage treatment process, it is enriched the pollutent in sewage, containing hazardous and noxious substances such as the nutritive substances such as a large amount of nitrogen, phosphorus and organism, viral micro-organisms, parasitic ovum, heavy metals, without effectively processing disposal, produce serious harm by environment.
Sludge moisture content >=80% that municipal sewage plant produces, mud is mostly in alkalescence, and pH value is 8 ~ 10, the product of unsuitable direct production 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, become new source of pollution.
At present the mud of a large amount of non-stabilizing treatment has become the heavy burden of sewage work, and mud that is how that output is huge, complicated component carries out properly processing safely, make that it is innoxious, minimizing, resource utilization, become deeply concerned key subjects.
Nutrition Soil be in order to meet seedling growth grow and particular formulation containing multiple mineral nutrition, loose ventilation, preserve moisture and fertility ability is strong, without the soil of disease and pest.Generally formed with decomposed dung mixed preparing by fertile land for growing field crops soil, also import high-quality peat, coconut palm chaff is selected from, the Nutrition Soil mixed in specific proportions, but these Nutrition Soils are not through reasonably preparing burden and strict sterilization, are unfavorable for that the normal growth of nursery stock is grown.
Because Nutrition Soil is after treatment relatively lighter and loose, the conventional products volume of Nutrition Soil is relatively large, is unfavorable for reducing the cost produced and transport.
Summary of the invention
The object of the invention is to overcome weak point in prior art, provide a kind of attapulgite clay mine tailing to compress the production method of Nutrition Soil.
The production method of attapulgite clay mine tailing compression Nutrition Soil: first attapulgite clay mine tailing and mud are carried out acidification, then the batching of attapulgite clay mine tailing compression Nutrition Soil is carried out stirring, compress, be packaged as finished product after microwave temperature sterilization.
Attapulgite clay mine tailing compression Nutrition Soil is made up of materials such as vegetable fibre, expanded vermiculite, pearlstone and the High hydrophilous resins after the mud after Concavo-convex excellent stone clay after the acidify mine tailing, acidifying, quick dissolved sodium silicate, polyvinyl alcohol, ferrous sulfate, peat, flower ceramsite, high sticky attapulgite clay, natural pond liquid, natural pond slag, pulverizing.
Attapulgite has unique dispersion, high temperature resistant, anti-good colloidal property and the higher adsorptive power such as saline and alkaline, and has certain plasticity-and cohesive force.Concavo-convex excellent stone clay after the acidify can adsorb foreign odor taste, heavy metal ion and carcinogenic substance in mud, the nutritive ingredient in mud is kept not run off, be conducive to growing of plant, the present invention selects the attapulgite clay mine tailing after pulverizing, particle fineness≤0.5 millimeter of attapulgite clay mine tailing, water content≤15% of attapulgite clay mine tailing.
After the acidified process of attapulgite clay mine tailing, pH value controls 5.0 ~ 7.0, can improve the utilization ratio of attapulgite clay mine tailing, turn waste into wealth.
Sulfuric acid select concentration be 98% the vitriol oil.
Quick dissolved sodium silicate is white powder material, can rapid solution in water, have that cohesive force is strong, intensity is higher, acid resistance, good heat resistance, the feature of alkali resistance and poor water resistance.
Polyethenol series white solid, external form divide cotton-shaped, particulate state, Powdered 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 the feature such as resistance to enzymatic, dispersiveness and cohesiveness widely.
Anhydrous slufuric acid ferrous iron is white powder, ferrous sulfate containing crystal water is pale green crystals, the ferrous sulfate of 10% aqueous solution is acid to reindeer moss, pH value is about 3.7, in the present invention not only can in and Attapulgite mine tailing compression Nutrition Soil alkalescence, as the supplement of plant ferro element, control plant there is physiological disturbance because of iron deficiency, make leaf look chlorosis, can also be used to kill liver moss.
Sodium carbonate has the general character and the thermostability of salt, soluble in water, and its aqueous solution is alkalescence, in the present invention for adjusting Concavo-convex excellent stone clay after the acidify mine tailing pH value.
Magnesium oxide has the general character of basic oxide, belongs to gelling material, can improve the colloidal property of Concavo-convex excellent stone clay after the acidify mine tailing.
For tackling the significant challenge of water resource environment, China will continue the investment strengthening urban infrastructure.The continuation of the energy-conserving and environment-protective requirement day by day improved along with government, municipal public use is open, the propelling of Environmental Industry policy and being gradually improved of investment and financing environment, and 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 art breading, as cultivation medium soil, soil improvement material, also can be used as the raw material making fertilizer, the mud that the present invention selects city domestic sewage treatment plant to discharge, water content≤90% of mud.
High sticky attapulgite clay is the attapulgite clay adopting the complete processing improving viscosity of attapulgite clay to produce, attapulgite clay is after batching stirs, abrasive dust is carried out for high sticky attapulgite clay powder, particle fineness≤0.074 millimeter in input grinding machine.
High sticky attapulgite clay soil property is fine and smooth, and have oily soapy, light weight, property are crisp, fracture is conchoidal or irregular shape, and water-absorbent is strong, tool viscosity and plasticity-time wet, viscosity >=the 2200mPas 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, water holding, fertilizer conservation, is conducive to microbial activities, strengthen biological property, nutritious, be cultivation matrix, 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 is a kind of lightweight, intensity is large, water-intake rate is high flower ceramsite, gravel attapulgite flower ceramsite can be immersed in water to produce throughout the year and burst apart, and the nutrition constantly required for 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 a kind of quick-acting and long-lastingly has both and the liquid fertilizer become thoroughly decomposed.
Natural pond slag is rich in organic matter, soil ulmin, nitrogen, phosphorus, potassium, micronutrient element, multiple amino acids, enzyme 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 water storage preserves soil moisture, and improves the ventilation property of soil and aquosity, plays the multiple actions such as fertilizer conservation, water conservation, water storage, ventilative and mineral manure.
Perlite becomes a kind of lightweight, multifunctional novel shaped material through expansion.Have the features such as apparent density is light, thermal conductivity is low, chemical stability is good, pearlstone is fertilizer conservation, water conservation, 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 attapulgite clay mine tailing compression Nutrition Soil: (1) stir in the stirrer of the batching input running of attapulgite clay mine tailing compression Nutrition Soil, input boil down to attapulgite clay mine tailing compression Nutrition Soil flap in tabletting machine after stirring, the gauge control of attapulgite clay mine tailing compression Nutrition Soil flap is at 5 ~ 30 millimeters; (2) attapulgite clay mine tailing compression Nutrition Soil flap is transported in belt type microwave dry sterilizer and carries out temperature sterilization and drying, temperature controls at 60 ~ 100 DEG C, time controling was at 30 ~ 120 minutes, and sterilizing and dried attapulgite clay mine tailing compress Nutrition Soil flap water content≤15%; (3) by sterilizing and dried attapulgite clay mine tailing compression Nutrition Soil flap, be transported in insulated sterilizing storehouse, attapulgite clay mine tailing is utilized to compress in Nutrition Soil flap the waste heat of self, proceed sterilizing and drying, after the cooling of attapulgite clay mine tailing compression Nutrition Soil flap, be packaged as the finished product of attapulgite clay mine tailing compression Nutrition Soil.
The batching that attapulgite clay 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 mud 25 ~ 55% after Concavo-convex excellent stone clay after the acidify mine tailing 15 ~ 35%, 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, Concavo-convex excellent stone clay after the acidify mine tailing batching is made up of following component by weight percentage: Concavo-convex excellent stone clay after the acidify mine tailing work in-process 90 ~ 99%, 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 Concavo-convex excellent stone clay after the acidify mine tailing: by abrasive dust in Concavo-convex excellent stone clay after the acidify mine tailing batching input grinding machine, particle fineness≤0.074 millimeter, the meal after abrasive dust is Concavo-convex excellent stone clay after the acidify mine tailing.
The half-finished production method of Concavo-convex excellent stone clay after the acidify mine tailing: stir in the stirrer (1) input of the batching of attapulgite clay Tailings mixture operated, then dilute sulphuric acid is slowly added in attapulgite clay Tailings mixture carry out acidification; (2), by the attapulgite clay Tailings mixture after acidification, the extruding of input twin rollers is flap, thickness≤3 millimeter of flap; (3) flap is transported to roasting in rotary type stoving oven, 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 Concavo-convex excellent stone clay after the acidify mine tailing work in-process.
The batching of attapulgite clay Tailings mixture is made up of following component by weight percentage: attapulgite clay mine tailing 97 ~ 99.5% and magnesium oxide 0.5 ~ 3%.The batching of acidification is made up of following component by weight percentage: attapulgite clay 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: mud 68 ~ 95%, Concavo-convex excellent stone clay after the acidify mine tailing 2 ~ 30% 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, spontaneous fermentation is transported in fermentation vat 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, be soak particle fineness in the gravel attapulgite flower ceramsite input natural pond liquid pool of 1 ~ 3 millimeter, gravel attapulgite flower ceramsite is after soaking, a large amount of natural pond liquid can be absorbed fast, soak time controls at 30 ~ 60 minutes, the gravel attapulgite flower ceramsite taken out after natural pond immersion bubble carries 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 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: 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) will pulverize as gravel particle 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: CN 102503372 B, authorized announcement date: on 04 17th, 2013.
5, high sticky attapulgite clay is the attapulgite clay adopting the complete processing improving viscosity of attapulgite clay to produce, and it is characterized in that, from the attapulgite clay of mining area exploitation, needs the weathering through 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, and in common input fermentation vat, add clear water and carry out immersion ageing, soak time is 72 ~ 120 hours; Get the attapulgite clay after immersion, stir in input stirrer, 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: the attapulgite clay 94 ~ 98% after airing, High hydrophilous resin 0.5 ~ 5% and Mierocrystalline cellulose 0.5 ~ 3%, above-mentioned batching is stirred, inputs in grinding machine and carry out abrasive dust, particle fineness≤0.074 millimeter after stirring.
Above-mentioned production technique adopts to be applied 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: CN 1317067C, 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, to pour in the beaker of 250mL through high-speed stirring sample suspension again, use NDJ-1 type rotational viscosimeter to carry out the viscosity of test suspension liquid, tested viscosity value >=2200 mPas is high sticky attapulgite clay.
Described in the present invention, PCm is all weight percentage.
After the acidified process of attapulgite clay mine tailing, pH value controls 5.0 ~ 7.0, can improve the utilization ratio of attapulgite clay mine tailing, not only can bring good economic benefit, environmental benefit and social benefit, and can realize turning waste into wealth.Concavo-convex excellent stone clay after the acidify mine tailing has good thixotropy, plasticity-and close-burning feature.
After the acidified process of mud, pH value controls 5.0 ~ 7.0, can improve the utilization ratio of mud, is conducive to the nutrition in plant overall absorption mud, guarantees that plant can normally grow fast.
The fresh sludge that city domestic sewage treatment plant produces is mostly in alkalescence, pH value is 8 ~ 10, add after Concavo-convex excellent stone clay after the acidify mine tailing and ferrous sulfate carry out acidification in fresh sludge, 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 in mud and organism nutritive substance obtain further raising, and foul smell obviously reduces, and its inherent moisture also will significantly decline.
Sterilizing and dried attapulgite clay mine tailing compression Nutrition Soil flap are transported in insulated sterilizing storehouse, waste heat is utilized to continue to carry out sterilizing and drying to attapulgite clay mine tailing compression Nutrition Soil, can continue to kill germ and the insect such as excrement colibacillus group, roundworm egg, nematode that in attapulgite clay mine tailing compression Nutrition Soil, Disabled stays, 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, and can also impel chlorophyll formation, can prevent and treat the yellows that flowers and trees cause because of iron deficiency, be the indispensable elements of the acid flowers and trees of happiness.
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 attapulgite clay mine tailing compression Nutrition Soil; Gravel attapulgite flower ceramsite can also play and regulate soil aggregate, coordinate moisture and ventilation property in attapulgite clay mine tailing compression Nutrition Soil, is conducive to crop root and stretches and normal growth.
Directly utilize the mud of city domestic sewage treatment plant for main raw material, a kind of attapulgite clay mine tailing compression Nutrition Soil 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 attapulgite clay mine tailing compression Nutrition Soil: attapulgite clay mine tailing compression Nutrition Soil was put into water immersion after 5 minutes, the attapulgite clay 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.
Attapulgite clay 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, the national standard that quality meets " GB/T 23486-2009 urban wastewater treatment firm sludge disposal afforestation shale ".
Production method of the present invention is adopted to produce attapulgite clay mine tailing compression Nutrition Soil; production technique is simple; do not need to concentrate mud separately, recuperate under medical treatment, dewater, stablize, the course of processing of mummification or burning; waste gas, dust and dry sound is not had in whole production process; be conducive to preserving the ecological environment, avoid and secondary pollution is caused to surrounding enviroment.
Containing a large amount of nitrogen, phosphorus, potassium, organic matter and various trace elements in attapulgite clay mine tailing compression Nutrition Soil, be that a kind of nutrition is complete, fertilizer efficiency is high, nontoxic, 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, reduce the harm of pathogenic bacteria and pests on plants, the normal growth being conducive to plant is grown.
Attapulgite clay mine tailing compression Nutrition Soil can also be used to the attapulgite clay mine tailing compression planting brick producing different shape.
The various waste of a large amount of employing in the batching of attapulgite clay mine tailing compression Nutrition Soil, is not only conducive to improving resource utilization, turns waste into wealth, can also reduce land occupation, protection and environment purification, save the energy, reduce production cost, increase economic efficiency.
The production method of attapulgite clay mine tailing compression Nutrition Soil is applicable to the attapulgite clay mine tailing compression Nutrition Soil producing various different ingredients.
Embodiment
Below in conjunction with embodiment, the invention will be further described:
1, the production method of attapulgite clay mine tailing compression Nutrition Soil: (1) stir in the stirrer of the batching input running of attapulgite clay mine tailing compression Nutrition Soil, input boil down to attapulgite clay mine tailing compression Nutrition Soil flap in tabletting machine after stirring, the gauge control of attapulgite clay mine tailing compression Nutrition Soil flap is at 24 millimeters; (2) attapulgite clay mine tailing compression Nutrition Soil flap is transported in belt type microwave dry sterilizer and carries out temperature sterilization and drying, temperature controls at 70 ~ 90 DEG C, time controling was at 50 minutes, and sterilizing and dried attapulgite clay mine tailing compress Nutrition Soil flap water content≤15%; (3) by sterilizing and dried attapulgite clay mine tailing compression Nutrition Soil flap, be transported in insulated sterilizing storehouse, attapulgite clay mine tailing is utilized to compress in Nutrition Soil flap the waste heat of self, proceed sterilizing and drying, after the cooling of attapulgite clay mine tailing compression Nutrition Soil flap, be packaged as the finished product of attapulgite clay mine tailing compression Nutrition Soil.
The batching that attapulgite clay mine tailing compresses Nutrition Soil is made up of following component by weight percentage: the vegetable fibre 4% after the gravel attapulgite flower ceramsite 6% after the mud 52% after Concavo-convex excellent stone clay after the acidify mine tailing 20%, acidifying, high sticky attapulgite clay 7%, natural pond immersion bubble, the peat 5% after pulverizing, natural pond slag 4%, pulverizing, expanded vermiculite 0.8%, pearlstone 0.6% and High hydrophilous resin 0.6%.
2, Concavo-convex excellent stone clay after the acidify mine tailing batching is made up of following component by weight percentage: Concavo-convex excellent stone clay after the acidify mine tailing work in-process 97.5%, quick dissolved sodium silicate 1.2%, polyvinyl alcohol 0.8%, Vltra tears 0.5% and sodium carbonate 0%; The production method of Concavo-convex excellent stone clay after the acidify mine tailing: by abrasive dust in Concavo-convex excellent stone clay after the acidify mine tailing batching input grinding machine, particle fineness≤0.074 millimeter, the meal after abrasive dust is Concavo-convex excellent stone clay after the acidify mine tailing.
The half-finished production method of Concavo-convex excellent stone clay after the acidify mine tailing: stir in the stirrer (1) input of the batching of attapulgite clay Tailings mixture operated, then dilute sulphuric acid is slowly added in attapulgite clay Tailings mixture carry out acidification; (2), by the attapulgite clay Tailings mixture after acidification, the extruding of input twin rollers is flap, thickness≤3 millimeter of flap; (3) flap is transported to roasting in rotary type stoving oven, roasting time is 2 hours, and maturing temperature controls at 300 ~ 350 DEG C, flap water content≤5% after roasting, and the flap after roasting is Concavo-convex excellent stone clay after the acidify mine tailing work in-process.
The batching of attapulgite clay Tailings mixture is made up of following component by weight percentage: attapulgite clay mine tailing 98.5% and magnesium oxide 1.5%; The batching of acidification is made up of following component by weight percentage: attapulgite clay Tailings mixture 72% and dilute sulphuric acid 28%; The batching of dilute sulphuric acid is made up of following component by weight percentage: concentration is the vitriol oil 4% and the water 96% of 98%.
3, the batching of mud acidification is made up of following component by weight percentage: mud 82%, Concavo-convex excellent stone clay after the acidify mine tailing 17.4% and ferrous sulfate 0.6%; 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, spontaneous fermentation is transported in fermentation vat 6 days after stirring, sludge pH after spontaneous fermentation controls 5.5 ~ 7.0, and the mud after spontaneous fermentation process is the mud after acidifying.
4, be soak particle fineness in the gravel attapulgite flower ceramsite input natural pond liquid pool of 1 ~ 3 millimeter, soak time controls at 45 minutes, the gravel attapulgite flower ceramsite taken out after natural pond immersion bubble carries out airing, gravel attapulgite flower ceramsite water content≤12% after airing.
Claims (8)
1. the production method of an attapulgite clay mine tailing compression Nutrition Soil, it is characterized in that, (1) stir in the stirrer of the batching input running of attapulgite clay mine tailing compression Nutrition Soil, input boil down to attapulgite clay mine tailing compression Nutrition Soil flap in tabletting machine after stirring, the gauge control of attapulgite clay mine tailing compression Nutrition Soil flap is at 5 ~ 30 millimeters; (2) attapulgite clay mine tailing compression Nutrition Soil flap is transported in belt type microwave dry sterilizer and carries out temperature sterilization and drying, temperature controls at 60 ~ 100 DEG C, time controling was at 30 ~ 120 minutes, and sterilizing and dried attapulgite clay mine tailing compress Nutrition Soil flap water content≤15%; (3) by sterilizing and dried attapulgite clay mine tailing compression Nutrition Soil flap, be transported in insulated sterilizing storehouse, attapulgite clay mine tailing is utilized to compress in Nutrition Soil flap the waste heat of self, proceed sterilizing and drying, after the cooling of attapulgite clay mine tailing compression Nutrition Soil flap, be packaged as the finished product of attapulgite clay mine tailing compression Nutrition Soil;
The batching that described attapulgite clay 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 mud 25 ~ 55% after Concavo-convex excellent stone clay after the acidify mine tailing 15 ~ 35%, 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. a kind of attapulgite clay mine tailing compresses the production method of Nutrition Soil according to claim 1, it is characterized in that, Concavo-convex excellent stone clay after the acidify mine tailing batching is made up of following component by weight percentage: Concavo-convex excellent stone clay after the acidify mine tailing work in-process 90 ~ 99%, 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 Concavo-convex excellent stone clay after the acidify mine tailing: by abrasive dust in Concavo-convex excellent stone clay after the acidify mine tailing batching input grinding machine, particle fineness≤0.074 millimeter, the meal after abrasive dust is Concavo-convex excellent stone clay after the acidify mine tailing;
The half-finished production method of Concavo-convex excellent stone clay after the acidify mine tailing: stir in the stirrer (1) input of the batching of attapulgite clay Tailings mixture operated, then dilute sulphuric acid is slowly added in attapulgite clay Tailings mixture carry out acidification; (2), by the attapulgite clay Tailings mixture after acidification, the extruding of input twin rollers is flap, thickness≤3 millimeter of flap; (3) flap is transported to roasting in rotary type stoving oven, 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 Concavo-convex excellent stone clay after the acidify mine tailing work in-process;
The batching of acidification is made up of following component by weight percentage: attapulgite clay 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%; The batching of attapulgite clay Tailings mixture is made up of following component by weight percentage: attapulgite clay mine tailing 97 ~ 99.5% and magnesium oxide 0.5 ~ 3%;
3. a kind of attapulgite clay mine tailing compresses the production method of Nutrition Soil according to claim 1, it is characterized in that, the batching of mud acidification is made up of following component by weight percentage: mud 68 ~ 95%, Concavo-convex excellent stone clay after the acidify mine tailing 2 ~ 30% 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, spontaneous fermentation is transported in fermentation vat 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. a kind of attapulgite clay mine tailing compresses the production method of Nutrition Soil according to claim 1, it is characterized in that, gravel attapulgite flower ceramsite after the immersion bubble of natural pond: be soak particle fineness in the gravel attapulgite flower ceramsite input natural pond liquid pool of 1 ~ 3 millimeter, gravel attapulgite flower ceramsite is after soaking, a large amount of natural pond liquid can be absorbed fast, soak time controls at 30 ~ 60 minutes, the gravel attapulgite flower ceramsite taken out after natural pond immersion bubble carries 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 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: 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) will pulverize as gravel particle in the particle input crusher after roasting and sieve, particle fineness controls at 1 ~ 12 millimeter, is gravel attapulgite flower ceramsite.
5. a kind of attapulgite clay mine tailing compresses the production method of Nutrition Soil according to claim 1, it is characterized in that, high sticky attapulgite clay is the attapulgite clay adopting the complete processing improving viscosity of attapulgite clay to produce, from the attapulgite clay of mining area exploitation, need the weathering through 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, and in common input fermentation vat, add clear water and carry out immersion ageing, soak time is 72 ~ 120 hours; Get the attapulgite clay after immersion, stir in input stirrer, 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: the attapulgite clay 94 ~ 98% after airing, High hydrophilous resin 0.5 ~ 5% and Mierocrystalline cellulose 0.5 ~ 3%, above-mentioned batching is stirred, inputs in grinding machine and carry out abrasive dust, particle fineness≤0.074 millimeter after stirring;
The detection method of high sticky attapulgite clay, it is characterized in that, get 28.0g attapulgite clay powder sample, add in the suspension cup of homogenizer, then add 372g water, suspension cup is placed on homogenizer, stir 20 minutes under the rotating speed of 11000 revs/min, to pour in the beaker of 250mL through high-speed stirring sample suspension again, use NDJ-1 type rotational viscosimeter to carry out the viscosity of test suspension liquid, tested viscosity value >=2200 mPas is high sticky attapulgite clay.
6. a kind of attapulgite clay mine tailing compresses the production method of Nutrition Soil according to claim 1, it is characterized in that, peat particle fineness≤2 millimeter after pulverizing, water content≤15% of peat, water content≤15% of natural pond slag, plant fiber length≤15 millimeter after pulverizing, water content≤15% of vegetable fibre.
7. a kind of attapulgite clay mine tailing compresses the production method of Nutrition Soil according to claim 1, it is characterized in that, particle fineness≤0.5 millimeter of attapulgite clay mine tailing, water content≤15% of attapulgite clay mine tailing.
8. a kind of attapulgite clay mine tailing compresses the production method of Nutrition Soil according to claim 3, it is characterized in that, water content≤90% of mud.
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| CN1207964A (en) * | 1997-08-07 | 1999-02-17 | 卞咏梅 | Light soil-less organic matrix |
| CN1965638A (en) * | 2005-11-15 | 2007-05-23 | 方立成 | Compact type substrate seedling nursery culture pan |
| CN101036442A (en) * | 2007-03-23 | 2007-09-19 | 方立成 | Compressed type plant culture stroma |
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| CN1207964A (en) * | 1997-08-07 | 1999-02-17 | 卞咏梅 | Light soil-less organic matrix |
| CN1965638A (en) * | 2005-11-15 | 2007-05-23 | 方立成 | Compact type substrate seedling nursery culture pan |
| CN101036442A (en) * | 2007-03-23 | 2007-09-19 | 方立成 | Compressed type plant culture stroma |
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Denomination of invention: Production method of compacted nutrient soil from attapulgite clay tailings Effective date of registration: 20200918 Granted publication date: 20151028 Pledgee: Gansu Financial Control Financing Guarantee Group Co.,Ltd. Pledgor: GANSU HUACHEN NONMETALLIC APPLIED SCIENCE AND TECHNOLOGY Co.,Ltd. Registration number: Y2020620000017 |