CN104119171B - The production method of graphite tailing compression Nutrition Soil - Google Patents
The production method of graphite tailing compression Nutrition Soil Download PDFInfo
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- CN104119171B CN104119171B CN201410394450.3A CN201410394450A CN104119171B CN 104119171 B CN104119171 B CN 104119171B CN 201410394450 A CN201410394450 A CN 201410394450A CN 104119171 B CN104119171 B CN 104119171B
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- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 title claims abstract description 138
- 239000010439 graphite Substances 0.000 title claims abstract description 136
- 229910002804 graphite Inorganic materials 0.000 title claims abstract description 136
- 239000002689 soil Substances 0.000 title claims abstract description 90
- 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 61
- 230000006835 compression Effects 0.000 title claims abstract description 61
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 33
- 239000004927 clay Substances 0.000 claims abstract description 52
- 238000003756 stirring Methods 0.000 claims abstract description 27
- 230000001954 sterilising effect Effects 0.000 claims abstract description 22
- 230000020477 pH reduction Effects 0.000 claims abstract description 18
- 239000000203 mixture Substances 0.000 claims abstract description 17
- 239000003415 peat Substances 0.000 claims abstract description 17
- 238000010298 pulverizing process Methods 0.000 claims abstract description 16
- 239000007788 liquid Substances 0.000 claims abstract description 12
- 239000011790 ferrous sulphate Substances 0.000 claims abstract description 9
- 235000003891 ferrous sulphate Nutrition 0.000 claims abstract description 9
- BAUYGSIQEAFULO-UHFFFAOYSA-L iron(2+) sulfate (anhydrous) Chemical compound [Fe+2].[O-]S([O-])(=O)=O BAUYGSIQEAFULO-UHFFFAOYSA-L 0.000 claims abstract description 9
- 229910000359 iron(II) sulfate Inorganic materials 0.000 claims abstract description 9
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- 239000004115 Sodium Silicate Substances 0.000 claims abstract description 6
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- NTHWMYGWWRZVTN-UHFFFAOYSA-N sodium silicate Chemical compound [Na+].[Na+].[O-][Si]([O-])=O NTHWMYGWWRZVTN-UHFFFAOYSA-N 0.000 claims abstract description 6
- 229910052911 sodium silicate Inorganic materials 0.000 claims abstract description 6
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- CPLXHLVBOLITMK-UHFFFAOYSA-N Magnesium oxide Chemical compound [Mg]=O CPLXHLVBOLITMK-UHFFFAOYSA-N 0.000 claims description 8
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- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 abstract description 10
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- QJZYHAIUNVAGQP-UHFFFAOYSA-N 3-nitrobicyclo[2.2.1]hept-5-ene-2,3-dicarboxylic acid Chemical compound C1C2C=CC1C(C(=O)O)C2(C(O)=O)[N+]([O-])=O QJZYHAIUNVAGQP-UHFFFAOYSA-N 0.000 description 1
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- BVKZGUZCCUSVTD-UHFFFAOYSA-L Carbonate Chemical compound [O-]C([O-])=O BVKZGUZCCUSVTD-UHFFFAOYSA-L 0.000 description 1
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Landscapes
- Soil Conditioners And Soil-Stabilizing Materials (AREA)
Abstract
The invention discloses a kind of production method of graphite tailing compression Nutrition Soil, the main points of its technical scheme are, first graphite tailing and mud carried out to acidification is compressed graphite tailing that the batching of Nutrition Soil stirs again, be packaged as finished product after compression, microwave low temperature sterilization. The materials such as the graphite tailing of graphite tailing compression Nutrition Soil after by acidifying, mud, quick dissolved sodium silicate, polyvinyl alcohol, ferrous sulfate, peat, flower ceramsite, high sticky Concave-convex clay rod, natural pond liquid, the natural pond slag after acidifying, string, expanded vermiculite, expanded perlite and high hydroscopic resin after pulverizing form. In graphite tailing compression Nutrition Soil, contain a large amount of nitrogen, phosphorus, potassium, organic matter and various trace elements; can provide plant growth necessary nutrient; reduce pathogen and the harm of insect to plant; the normal growth that is conducive to plant is grown; preserve the ecological environment, the production method of graphite tailing compression Nutrition Soil is applicable to produce the graphite tailing compression Nutrition Soil of different formulations.
Description
Technical field
The present invention relates to Nutrition Soil, be specifically related to a kind of production method of graphite tailing compression Nutrition Soil.
Background technology
Graphite and carbon product possess good performance, apply increasingly extensively, and production capacity and benefit present a rapidly rising trend in recent years, and along with the continuous popularization of application, the competition of China's graphite and carbon product industry is also growing more intense; Graphite tailing, as the waste residue in exploitation graphite process, is not used for a long time, and a large amount of graphite tailings have caused contaminated environment, land seizure and safety problem, becomes the principal element of restriction graphite Sustainable Development of Enterprises.
Graphite tailing is a kind of alkaline waste producing after the machine silicon limestone flour of ore dressing plant, pH value 8～9.5.
Mud is the smelly paste of a kind of easy corruption producing in sewage disposal process, its enrichment the pollutant in sewage, contain the poisonous and harmful substances such as the nutriments such as a large amount of nitrogen, phosphorus and organic matter, viral micro-organisms, parasitic ovum, heavy metal, without effectively processing and dispose, will environment be produced to serious harm.
Sludge moisture content >=80% that municipal sewage plant produces, mud is alkalescence mostly, and pH value is 8～10, should not directly produce the product of recycling.
Investigation shows, at present China has 80% mud not to be effectively addressed, and even has greatly and is simply discarded in the PE such as farmland, river, becomes new pollution sources.
At present a large amount of stable mud of processing has become the heavy burden of sewage treatment plant, how mud huge output, complicated component is properly processed safely, makes that it is innoxious, minimizing, resource, has become dark concerned key subjects.
Nutrition Soil is the multiple mineral nutrition that contains of preparing specially in order to meet seedling growth growth, loose ventilation, and 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 be selected from import high-quality peat, coconut palm chaff, the Nutrition Soil mixing 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 low weight and loose, the conventional products volume of Nutrition Soil is relatively large, is unfavorable for reducing the cost of producing and transporting.
Summary of the invention
The object of the invention is to overcome weak point in prior art, a kind of production method of graphite tailing compression Nutrition Soil is provided.
The production method of graphite tailing compression Nutrition Soil: first graphite tailing and mud carried out to acidification is compressed graphite tailing that the batching of Nutrition Soil stirs again, be packaged as finished product after compression, microwave low temperature sterilization.
The materials such as the graphite tailing of graphite tailing compression Nutrition Soil after by acidifying, mud, quick dissolved sodium silicate, polyvinyl alcohol, ferrous sulfate, peat, flower ceramsite, high sticky Concave-convex clay rod, natural pond liquid, the natural pond slag after acidifying, string, expanded vermiculite, expanded perlite and high hydroscopic resin after pulverizing form.
Occurring in nature does not have pure graphite, and these impurity often occur with mineral forms such as quartz, pyrite, carbonate. The present invention selects the graphite tailing powder after pulverizing, grain fineness≤0.5 millimeter of graphite tailing powder.
After the acidified processing of graphite tailing, pH value is controlled at 5.0～7.0, can improve the utilization rate of graphite tailing, turns waste into wealth.
Attapulgite has unique dispersion, high temperature resistant, the anti-good colloidal nature such as saline and alkaline and higher adsorption capacity, and has certain plasticity and cohesive force. Concave-convex clay rod after acidifying can adsorb foreign odor taste, heavy metal ion and the carcinogen in mud, keep the nutritional labeling in mud not run off, be conducive to growing of plant, the present invention selects the Concave-convex clay rod after pulverizing, grain fineness≤5 millimeter of Concave-convex clay rod, water content≤15% of Concave-convex clay rod.
It is 98% the concentrated sulfuric acid that sulfuric acid is selected concentration.
Quick dissolved sodium silicate is white granular material, can be dissolved in fast water, has 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, that external form is divided is cotton-shaped, graininess, Powdered three kinds; Nonpoisonous and tasteless, graininess can be dissolved in 80--90 DEG C of water, pulverously after other powders pre-dispersed, can dissolve at normal temperatures. There is good viscosity, polymerism, caking property and water-retaining property.
Hydroxypropyl methylcellulose has thickening capabilities, salt discharge, pH stability, water-retaining property, dimensional stability, good film forming and the feature such as resistance to enzyme, dispersiveness and caking property widely.
Anhydrous slufuric acid ferrous iron is white powder, ferrous sulfate containing the crystallization water is light green color crystal, 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 the alkalescence of graphite tailing compression Nutrition Soil, as the replenishers of plant ferro element, there is physiological disturbance because of iron deficiency in control plant, make leaves of plants look chlorosis, can also be used to kill liver moss.
Sodium carbonate has the general character and the heat endurance of salt, soluble in water, and its aqueous solution is alkalescence, in the present invention for adjusting the graphite tailing pH value after acidifying.
Magnesia has the general character of basic anhydride, belongs to Binder Materials, can improve the colloidal property of the graphite tailing after acidifying.
For the significant challenge of reply water resource environment, China will continue to strengthen the investment of urban infrastructure. The energy-conserving and environment-protective requirement day by day improving along with government, the continuation of municipal public use are 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.
In the mud of city domestic sewage treatment plant, contain a considerable amount of nitrogen, phosphorus, potassium and trace element, through suitable PROCESS FOR TREATMENT, as cultivation medium soil, soil improvement material, also can be used as the raw material of making fertilizer, the present invention selects the mud of city domestic sewage treatment plant discharge, water content≤90% of mud.
High sticky Concave-convex clay rod is the Concave-convex clay rod that adopts the processing technology that improves viscosity of attapulgite clay to produce, Concave-convex clay rod is after batching stirs, in input grinding machine, carry out abrasive dust for high sticky Concave-convex clay rod powder, grain fineness≤0.074 millimeter.
High sticky Concave-convex clay rod soil property exquisiteness, has oily soapy, and light weight, property are crisp, fracture is conchoidal or irregular shape, and water imbibition is strong, tool viscosity and plasticity when wet, viscosity >=the 2200mPas of high sticky Concave-convex clay rod powder, adhesive force is good, is conducive to the bonding between raw material.
Peat is called again 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 contain very high organic matter, and humic acid and nutrition, the peat after pulverizing is to pulverize after peat is dried, peat grain fineness≤2 millimeter after pulverizing, water content≤15% of peat.
Gravel attapulgite flower ceramsite rough surface porous, it is a kind of lightweight, intensity is large, water absorption rate is high flower ceramsite, gravel attapulgite flower ceramsite can be immersed in water throughout the year and can not produce and burst apart, and constantly slowly discharging the needed nutrition of flowers, the present invention selects the grain fineness of gravel attapulgite flower ceramsite to be controlled at 1～3 millimeter.
Natural pond liquid decomposes through microorganism, has killed harmful viral bacterium, the nutrient that contains various plants growth, and abundant amino acid and various growth hormone, vitamin etc., are a kind of quick-acting and the long-lasting liquid fertilizer that has both and become thoroughly decomposed.
Natural pond slag is rich in organic matter, humus, nitrogen, phosphorus, potassium, micronutrient element, several amino acids, enzyme and beneficial microbe, can play the effect of good improvement soil, water content≤15% of natural pond slag.
String after pulverizing is to pulverize after the plants such as the straw of crops, wood chip, bamboo bits and leaf are dried, plant fiber length≤15 millimeter after pulverizing, water content≤15% of string.
Vermiculite is after high-temperature roasting, and its volume energy expands rapidly several times to tens times, and the vermiculite after volumetric expansion, expanded vermiculite, is one of the lightest in the world mineral; Expanded vermiculite as soil conditioner, can improve the structure of soil, and water storage soil moisture conservation improves gas permeability and the property of water-bearing of soil, plays the multiple actions such as fertilizer conservation, water conservation, water storage, ventilative and mineral fertilizer.
Perlite becomes a kind of lightweight, multifunctional novel shaped material through expansion. Have the features such as apparent density is light, thermal conductivity factor is low, chemical stability is good, expanded perlite is for fertilizer conservation, water conservation, aseptic, good permeability on agricultural, gardens.
The water absorbent rate of high hydroscopic resin can reach hundreds of times even thousands of times of own wt, and it is 100～300 times that the present invention selects the water absorbent rate of high hydroscopic resin.
The present invention is achieved by following technical proposals:
1, the production method of graphite tailing compression Nutrition Soil: (1) graphite tailing is compressed in the mixer of batching input running of Nutrition Soil and stir, after stirring, input boil down to graphite tailing compression Nutrition Soil tablet in tablet press machine, the THICKNESS CONTROL of graphite tailing compression Nutrition Soil tablet is at 5～30 millimeters; (2) graphite tailing being compressed to Nutrition Soil tablet is transported to and in belt type microwave dry sterilizer, carries out low temperature sterilization and dry, temperature is controlled at 60～100 DEG C, time is controlled at 30～120 minutes, sterilizing and dried graphite tailing compression Nutrition Soil tablet water content≤15%; (3) by sterilizing and dried graphite tailing compression Nutrition Soil tablet, be transported in insulated sterilizing storehouse, utilize in graphite tailing compression Nutrition Soil tablet the waste heat of self, proceed sterilizing and dry, after graphite tailing compression Nutrition Soil tablet is cooling, be packaged as the finished product of graphite tailing compression Nutrition Soil.
The batching that graphite tailing compresses Nutrition Soil is made up of following component by weight percentage: the string 1～10% after the gravel attapulgite flower ceramsite 2～15% after the mud 25～55% after graphite tailing 15～35%, acidifying after acidifying, high sticky Concave-convex clay rod 2～15%, natural pond immersion bubble, the peat 2～15% after pulverizing, natural pond slag 2～15%, pulverizing, expanded vermiculite 0.5～5%, expanded perlite 0.5～5% and high hydroscopic resin 0.1～5%.
2, the batching of the graphite tailing after acidifying is made up of following component by weight percentage: graphite tailing semi-finished product 90～99%, quick dissolved sodium silicate 0.1～5%, polyvinyl alcohol 0.1～5%, hydroxypropyl methylcellulose 0.01～3% and sodium carbonate 0～3% after acidifying; The production method of the graphite tailing after acidifying: by abrasive dust in the graphite tailing batching input grinding machine after acidifying, grain fineness≤0.074 millimeter, the powder after abrasive dust is the graphite tailing after acidifying.
The half-finished production method of graphite tailing after acidifying: stir in the mixer (1) input of the batching of graphite tailing mixture having been turned round, then dilute sulfuric acid is slowly added and carries out acidification in graphite tailing mixture; (2) by the graphite tailing mixture after acidification, the extruding of input twin rollers is tablet, thickness≤3 millimeter of tablet; (3) tablet is transported to roasting in swinging drying oven, roasting time is 1～3 hour, and sintering temperature is controlled at 250～350 DEG C, tablet water content≤5% after roasting, and the tablet after roasting is the graphite tailing semi-finished product after acidifying.
The batching of graphite tailing mixture is made up of following component by weight percentage: graphite tailing 68～92%, Concave-convex clay rod 5～30% and magnesia 0.1～3%; The batching of acidification is made up of following component by weight percentage: graphite tailing mixture 65～95% and dilute sulfuric acid 5～35%; The batching of dilute sulfuric acid is made up of following component by weight percentage: the concentrated sulfuric acid 1～10% that concentration is 98% and water 90～99%, the concentrated sulfuric acid percentage that concentration is 98% is weight percentage.
3, the batching of mud acidification is made up of following component by weight percentage: the graphite tailing 2～30% after mud 68～95%, acidifying and ferrous sulfate 0.01～5%; The production method of the mud after acidifying: stir in the mixer that the input of the batching of mud acidification has been turned round, after stirring, be transported in fermentation vat spontaneous fermentation 3～14 days, sludge pH value after spontaneous fermentation is controlled at 5.0～7.0, and spontaneous fermentation mud after treatment is the mud after acidifying.
4, be to soak in the gravel attapulgite flower ceramsite input natural pond liquid pool of 1～3 millimeter grain fineness, gravel attapulgite flower ceramsite is after soaking, can absorb fast a large amount of natural pond liquid, soak time is controlled at 30～60 minutes, the gravel attapulgite flower ceramsite taking 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 Concave-convex clay rod powder 1～10%, Concave-convex clay rod mine tailing 5～25%, red bentonite in powder 5～20%, mud 45～65%, diatomite mine tailing 5～20% and powdered rice hulls 1～10%;
The production method of gravel attapulgite flower ceramsite: input Squeezinggranulator granulation after (1) the batching of gravel attapulgite flower ceramsite being added to stirrer for mixing, particle diameter is controlled at 8～25 millimeters, and particle length is controlled at 10～40 millimeters; (2) by the particle input internal heating type revolution roasting in kilns after granulation, sintering temperature is controlled at 550～850 DEG C, and roasting time is controlled at 1～6 hour; (3) will in the particle input disintegrating machine after roasting, pulverize as gravel particle and sieve, grain fineness be controlled at 1～12 millimeter, is gravel attapulgite flower ceramsite.
Gravel attapulgite flower ceramsite is to adopt " gravel attapulgite flower ceramsite " applied on November 10th, 2011 by the inventor, and Chinese patent Granted publication number is: CN102503372B, Granted publication day: on 04 17th, 2013.
5, high sticky Concave-convex clay rod is the Concave-convex clay rod that adopts the processing technology that improves viscosity of attapulgite clay to produce, it is characterized in that, and from the Concave-convex clay rod of mining area exploitation, need to be through the weathering of 30～120 days; Modification processing method is: calculate by weight percentage, get the Concave-convex clay rod 94～98% after weathering, evenly add 2～6% sodium carbonate, jointly input in fermentation vat, add clear water to soak ageing, soak time is 72～120 hours; Get the Concave-convex clay rod after immersion, in input mixer, stir, and by the Concave-convex clay rod after stirring, be extruded into thin slice through extruder, its THICKNESS CONTROL is at 0.5～2 millimeter, by Concave-convex clay rod thin slice, carry out airing, the Concave-convex clay rod thin slice after airing, its water content≤15%; Batching is calculated by weight percentage: Concave-convex clay rod 94～98%, high hydroscopic resin 0.5～5% and cellulose 0.5～3% after airing, above-mentioned batching is stirred, and after stirring, input and in grinding machine, carry out abrasive dust, grain fineness≤0.074 millimeter.
Above-mentioned production technology is to adopt " the improving the processing technology of viscosity of attapulgite clay " of being applied on June 20th, 2005 by the inventor, and Chinese patent Granted publication number is: CN1317067C, Granted publication day: on May 23rd, 2007.
The detection method of high sticky Concave-convex clay rod: get 28.0g Concave-convex clay rod powder sample, add in the suspension cup of homogenizer, add again 372g water, suspension cup is placed on homogenizer, under the rotating speed of 11000 revs/min, stir 20 minutes, to pour in the beaker of 250mL through high-speed stirred sample suspension, use NDJ-1 type rotation viscometer to carry out the viscosity of test suspension liquid, tested viscosity value >=2200mPas is high sticky Concave-convex clay rod.
Described in the present invention, PCm is all weight percentage.
After the acidified processing of graphite tailing, pH value is controlled at 5.0～7.0, can improve the utilization rate of graphite tailing, not only can bring good economic benefit, environmental benefit and social benefit, and can realize and turning waste into wealth. Graphite tailing after acidifying has good thixotropy, plasticity and close-burning feature.
After the acidified processing of mud, pH value is controlled at 5.0～7.0, can improve the utilization rate of mud, is conducive to plant and absorbs the nutrition in mud comprehensively, guarantees that plant can grow by normal Fast Growth.
The fresh sludge that city domestic sewage treatment plant produces is alkalescence mostly, pH value is 8～10, in fresh sludge, add graphite tailing and ferrous sulfate after acidifying to carry out after acidification, mud is faintly acid, and pH value is controlled at 5.0～7.0, can spontaneous fermentation under the normal temperature condition of temperature >=20 DEG C, in spontaneous fermentation process, nitrogen phosphorus potassium and organic matter nutriment in mud have obtained further raising, and foul smell obviously reduces, and its inherent moisture also will significantly decline.
Sterilizing and dried graphite tailing compression Nutrition Soil tablet are transported in insulated sterilizing storehouse, utilize waste heat to continue graphite tailing compression Nutrition Soil to carry out sterilizing and dry, can continue to kill germ and the insects such as excrement colibacillus group that in graphite tailing compression Nutrition Soil, Disabled stays, roundworm egg, nematode, weed seed in mud and peat can also be steamed extremely, avoid the germination again of weed seed.
Ferrous sulfate not only can conditioning of mud acid-base value, can also impel chlorophyll formation, can prevent and treat flowers and trees because of the yellows that iron deficiency causes, be the indispensable elements of the acid flowers and trees of happiness.
Gravel attapulgite flower ceramsite is inputted in the liquid pool of natural pond and soaked, and gravel attapulgite flower ceramsite inside will suck a large amount of natural ponds liquid, to increase effective nutritional labeling of graphite tailing compression Nutrition Soil; Gravel attapulgite flower ceramsite can also play and regulate soil aggregate, coordinate moisture and gas permeability in graphite tailing compression Nutrition Soil, is conducive to crop root and stretches and normal growth.
The mud that directly utilizes city domestic sewage treatment plant is primary raw material, after acidified modification, stirring, compression and low temperature sterilization, produce a kind of graphite tailing compression Nutrition Soil of sheet, volume-diminished before the compression of small product size ratio is below 25%, greatly reduce production and the cost of transportation of product, increase the economic benefit of enterprise.
The using method of graphite tailing compression Nutrition Soil: graphite tailing is compressed to Nutrition Soil and put into water and soak after 5 minutes, the graphite tailing compression Nutrition Soil of sheet is reduced to loose Nutrition Soil very soon, and after water suction, the weight of the former compression Nutrition Soil of weight ratio of loose Nutrition Soil has increased more than 5 times.
Graphite tailing compression Nutrition Soil can be used for construction and the maintenance processes in cities and towns green space 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 treatment afforestation shale ".
Adopt production method of the present invention to produce graphite tailing compression Nutrition Soil; production technology is simple; do not need separately to mud concentrate, recuperate under medical treatment, dewater, stablize, the process of mummification or burning; in whole production process, there is no waste gas, dust and dry sound; be conducive to preserve the ecological environment, avoided surrounding enviroment to cause secondary pollution.
In graphite tailing compression Nutrition Soil, contain a large amount of nitrogen, phosphorus, potassium, organic matter and various trace elements, 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, can provide plant growth necessary nutrient, do not use chemical fertilizer and chemical pesticide, reduce pathogen and the harm of insect to plant, the normal growth that is conducive to plant is grown.
Graphite tailing compression Nutrition Soil can also be used to produce the graphite tailing compression planting brick of various shapes.
The various discarded objects of a large amount of employing in the batching of graphite tailing compression Nutrition Soil, are not only conducive to improve resource utilization, turn waste into wealth, and can also reduce land occupation, and protection and environment purification, save the energy, reduces production costs, and increases economic efficiency.
The production method of graphite tailing compression Nutrition Soil is applicable to produce the graphite 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 graphite tailing compression Nutrition Soil: (1) graphite tailing is compressed in the mixer of batching input running of Nutrition Soil and stir, after stirring, input boil down to graphite tailing compression Nutrition Soil tablet in tablet press machine, the THICKNESS CONTROL of graphite tailing compression Nutrition Soil tablet is at 26 millimeters; (2) graphite tailing being compressed to Nutrition Soil tablet is transported to and in belt type microwave dry sterilizer, carries out low temperature sterilization and dry, temperature is controlled at 70～90 DEG C, time is controlled at 55 minutes, sterilizing and dried graphite tailing compression Nutrition Soil tablet water content≤15%; (3) by sterilizing and dried graphite tailing compression Nutrition Soil tablet, be transported in insulated sterilizing storehouse, utilize in graphite tailing compression Nutrition Soil tablet the waste heat of self, proceed sterilizing and dry, after graphite tailing compression Nutrition Soil tablet is cooling, be packaged as the finished product of graphite tailing compression Nutrition Soil.
The batching that graphite tailing compresses Nutrition Soil is made up of following component by weight percentage: the string 4% after the gravel attapulgite flower ceramsite 5% after the mud 50% after graphite tailing 22%, acidifying after acidifying, high sticky Concave-convex clay rod 8%, natural pond immersion bubble, the peat 5% after pulverizing, natural pond slag 4%, pulverizing, expanded vermiculite 0.8%, expanded perlite 0.6% and high hydroscopic resin 0.6%.
2, the batching of the graphite tailing after acidifying is made up of following component by weight percentage: graphite tailing semi-finished product 97%, quick dissolved sodium silicate 1.2%, polyvinyl alcohol 1.1%, hydroxypropyl methylcellulose 0.7% and sodium carbonate 0% after acidifying; The production method of the graphite tailing after acidifying: by abrasive dust in the graphite tailing batching input grinding machine after acidifying, grain fineness≤0.074 millimeter, the powder after abrasive dust is the graphite tailing after acidifying.
The half-finished production method of graphite tailing after acidifying: stir in the mixer (1) input of the batching of graphite tailing mixture having been turned round, then dilute sulfuric acid is slowly added and carries out acidification in graphite tailing mixture; (2) by the graphite tailing mixture after acidification, the extruding of input twin rollers is tablet, thickness≤3 millimeter of tablet; (3) tablet is transported to roasting in swinging drying oven, roasting time is 2 hours, and sintering temperature is controlled at 300～350 DEG C, tablet water content≤5% after roasting, and the tablet after roasting is the graphite tailing semi-finished product after acidifying.
The batching of graphite tailing mixture is made up of following component by weight percentage: graphite tailing 76%, Concave-convex clay rod 22.5% and magnesia 1.5%; The batching of acidification is made up of following component by weight percentage: graphite tailing mixture 74% and dilute sulfuric acid 26%; The batching of dilute sulfuric acid is made up of following component by weight percentage: the concentrated sulfuric acid 5% that concentration is 98% and water 95%.
3, the batching of mud acidification is made up of following component by weight percentage: the graphite tailing 21.2% after mud 78%, acidifying and ferrous sulfate 0.8%; The production method of the mud after acidifying: stir in the mixer that the input of the batching of mud acidification has been turned round, after stirring, be transported in fermentation vat spontaneous fermentation 8 days, sludge pH value after spontaneous fermentation is controlled at 5.5～7.0, and spontaneous fermentation mud after treatment is the mud after acidifying.
4, be to soak in the gravel attapulgite flower ceramsite input natural pond liquid pool of 1～3 millimeter grain fineness, soak time is controlled at 45 minutes, the gravel attapulgite flower ceramsite taking out after natural pond immersion bubble carries out airing, gravel attapulgite flower ceramsite water content≤12% after airing.
Claims (5)
1. the production method of a graphite tailing compression Nutrition Soil, it is characterized in that, (1) graphite tailing is compressed in the mixer of batching input running of Nutrition Soil and stir, after stirring, input boil down to graphite tailing compression Nutrition Soil tablet in tablet press machine, the THICKNESS CONTROL of graphite tailing compression Nutrition Soil tablet is at 5～30 millimeters; (2) graphite tailing being compressed to Nutrition Soil tablet is transported to and in belt type microwave dry sterilizer, carries out low temperature sterilization and dry, temperature is controlled at 60～100 DEG C, time is controlled at 30～120 minutes, sterilizing and dried graphite tailing compression Nutrition Soil tablet water content≤15%; (3) by sterilizing and dried graphite tailing compression Nutrition Soil tablet, be transported in insulated sterilizing storehouse, utilize in graphite tailing compression Nutrition Soil tablet the waste heat of self, proceed sterilizing and dry, after graphite tailing compression Nutrition Soil tablet is cooling, be packaged as the finished product of graphite tailing compression Nutrition Soil;
The batching that described graphite tailing compresses Nutrition Soil is made up of following component by weight percentage: the string 1～10% after the gravel attapulgite flower ceramsite 2～15% after the mud 25～55% after graphite tailing 15～35%, acidifying after acidifying, high sticky Concave-convex clay rod 2～15%, natural pond immersion bubble, the peat 2～15% after pulverizing, natural pond slag 2～15%, pulverizing, expanded vermiculite 0.5～5%, expanded perlite 0.5～5% and high hydroscopic resin 0.1～5%;
Graphite tailing batching after acidifying is made up of following component by weight percentage: graphite tailing semi-finished product 90～99%, quick dissolved sodium silicate 0.1～5%, polyvinyl alcohol 0.1～5%, hydroxypropyl methylcellulose 0.01～3% and sodium carbonate 0～3% after acidifying; The production method of the graphite tailing after acidifying: by abrasive dust in the graphite tailing batching input grinding machine after acidifying, grain fineness≤0.074 millimeter, the powder after abrasive dust is the graphite tailing after acidifying;
The half-finished production method of graphite tailing after acidifying: stir in the mixer (1) input of the batching of graphite tailing mixture having been turned round, then dilute sulfuric acid is slowly added and carries out acidification in graphite tailing mixture; (2) by the graphite tailing mixture after acidification, the extruding of input twin rollers is tablet, thickness≤3 millimeter of tablet; (3) tablet is transported to roasting in swinging drying oven, roasting time is 1～3 hour, and sintering temperature is controlled at 250～350 DEG C, tablet water content≤5% after roasting, and the tablet after roasting is the graphite tailing semi-finished product after acidifying;
The batching of graphite tailing mixture is made up of following component by weight percentage: graphite tailing 68～92%, Concave-convex clay rod 5～30% and magnesia 0.1～3%; The batching of acidification is made up of following component by weight percentage: graphite tailing mixture 65～95% and dilute sulfuric acid 5～35%; The batching of dilute sulfuric acid is made up of following component by weight percentage: the concentrated sulfuric acid 1～10% that concentration is 98% and water 90～99%;
The batching of mud acidification is made up of following component by weight percentage: the graphite tailing 2～30% after mud 68～95%, acidifying and ferrous sulfate 0.01～5%; The production method of the mud after acidifying: stir in the mixer that the input of the batching of mud acidification has been turned round, after stirring, be transported in fermentation vat spontaneous fermentation 3～14 days, sludge pH value after spontaneous fermentation is controlled at 5.0～7.0, and spontaneous fermentation mud after treatment is the mud after acidifying;
Gravel attapulgite flower ceramsite after the immersion bubble of natural pond: the gravel attapulgite flower ceramsite that is 1～3 millimeter by grain fineness is inputted in the liquid pool of natural pond and soaked, soak time is controlled at 30～60 minutes, the gravel attapulgite flower ceramsite taking 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 Concave-convex clay rod powder 1～10%, Concave-convex clay rod mine tailing 5～25%, red bentonite in powder 5～20%, mud 45～65%, diatomite mine tailing 5～20% and powdered rice hulls 1～10%; The production method of gravel attapulgite flower ceramsite: input Squeezinggranulator granulation after (1) the batching of gravel attapulgite flower ceramsite being added to stirrer for mixing, particle diameter is controlled at 8～25 millimeters, and particle length is controlled at 10～40 millimeters; (2) by the particle input internal heating type revolution roasting in kilns after granulation, sintering temperature is controlled at 550～850 DEG C, and roasting time is controlled at 1～6 hour; (3) will in the particle input disintegrating machine after roasting, pulverize as gravel particle and sieve, grain fineness be controlled at 1～12 millimeter, is gravel attapulgite flower ceramsite.
2. the production method of graphite tailing compression Nutrition Soil according to claim 1, it is characterized in that, high sticky Concave-convex clay rod is the Concave-convex clay rod that adopts the processing technology that improves viscosity of attapulgite clay to produce, from the Concave-convex clay rod of mining area exploitation, need to be through the weathering of 30～120 days; Modification processing method is: calculate by weight percentage, get the Concave-convex clay rod 94～98% after weathering, evenly add 2～6% sodium carbonate, jointly input in fermentation vat, add clear water to soak ageing, soak time is 72～120 hours; Get the Concave-convex clay rod after immersion, in input mixer, stir, and by the Concave-convex clay rod after stirring, be extruded into thin slice through extruder, its THICKNESS CONTROL is at 0.5～2 millimeter, by Concave-convex clay rod thin slice, carry out airing, the Concave-convex clay rod thin slice after airing, its water content≤15%; Batching is calculated by weight percentage: Concave-convex clay rod 94～98%, high hydroscopic resin 0.5～5% and cellulose 0.5～3% after airing, above-mentioned batching is stirred, and after stirring, input and in grinding machine, carry out abrasive dust, grain fineness≤0.074 millimeter;
The detection method of high sticky Concave-convex clay rod, it is characterized in that, get 28.0g Concave-convex clay rod powder sample, add in the suspension cup of homogenizer, then add 372g water, suspension cup is placed on homogenizer, under the rotating speed of 11000 revs/min, stir 20 minutes, to pour in the beaker of 250mL through high-speed stirred sample suspension, use NDJ-1 type rotation viscometer to carry out the viscosity of test suspension liquid, tested viscosity value >=2200mPas is high sticky Concave-convex clay rod.
3. the production method of graphite tailing compression Nutrition Soil according to claim 1, is characterized in that peat grain 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 string.
4. the production method of graphite tailing compression Nutrition Soil according to claim 1, is characterized in that grain fineness≤0.5 millimeter of graphite tailing, grain fineness≤5 millimeter of Concave-convex clay rod, water content≤15% of Concave-convex clay rod.
5. the production method of graphite tailing compression Nutrition Soil according to claim 1, is characterized in that water content≤90% of mud.
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| CN109311778A (en) * | 2017-12-27 | 2019-02-05 | 深圳市大富科技股份有限公司 | A kind of preparation method of the organic fertilizer dry powder based on graphite |
| CN109496206A (en) * | 2017-12-27 | 2019-03-19 | 深圳市大富科技股份有限公司 | A kind of preparation method of the organic fertilizer dry powder based on graphite |
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| CN118830470A (en) * | 2024-07-23 | 2024-10-25 | 中塑新材料技术(吉林)有限公司 | Soil matrix based on tailing slag and preparation method and application thereof |
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| CN101810130A (en) * | 2010-04-30 | 2010-08-25 | 张夫道 | Method for using major metal tailings after harmless treatment as culture medium |
| CN102974604A (en) * | 2012-12-17 | 2013-03-20 | 本溪清迈尾矿综合利用有限公司 | Method and product for producing soil remediation fertilizer by utilizing high-silicon iron tailings |
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| CN101810130A (en) * | 2010-04-30 | 2010-08-25 | 张夫道 | Method for using major metal tailings after harmless treatment as culture medium |
| CN102974604A (en) * | 2012-12-17 | 2013-03-20 | 本溪清迈尾矿综合利用有限公司 | Method and product for producing soil remediation fertilizer by utilizing high-silicon iron tailings |
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Effective date of registration: 20161201 Address after: 116000, Zhenxing street, Bay Industrial Zone, Pulandian District, Liaoning, Dalian, 16 Patentee after: DALIAN DEETOP HEAVY INDUSTRY Co.,Ltd. Address before: 211700 Huaian, Xuyi province Timor King international residential area, building 2, unit 202 room 18 Patentee before: Xu Shengying |
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Effective date of registration: 20180108 Address after: Dalian high tech Industrial Park in Liaoning province 116023 Guang Xian Lu No. 133 building 21 room 2014, Cerberus Patentee after: DALIAN DEETOP ENVIRONMENTAL TECHNOLOGY Co.,Ltd. Address before: 116000, Zhenxing street, Bay Industrial Zone, Pulandian District, Liaoning, Dalian, 16 Patentee before: DALIAN DEETOP HEAVY INDUSTRY Co.,Ltd. |
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