CN105237155A - Humic acid chelated bio-ecological composite fertilizer and preparation method of same - Google Patents
Humic acid chelated bio-ecological composite fertilizer and preparation method of same Download PDFInfo
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Abstract
The invention discloses a humic acid chelated bio-ecological composite fertilizer and a preparation method of same. The fertilizer is prepared from following raw materials comprising: humic acid, magnesium nitrate, liquid sodium silicate, concentrated sulfuric acid, liquid ammonia, zinc sulfate, polyacrylamide, microorganisms, and other raw materials containing nitrogen, phosphorus and potassium nutrients. The preparation method includes the following steps: through an ammonia-acid method composite fertilizer producing device, producing a mixed solution with the humic acid, the magnesium nitrate, the liquid sodium silicate, the zinc sulfate and water; performing acidification of the humic acid and chelating of the medium trace elements to the mixed solution with a high-temperature ammonium sulfate solution produced from the concentrated sulfuric acid and the liquid ammonia in a tubular reactor. In the invention, the mixed slurry is employed as required liquid phase for granulation, wherein the materials are heated through the heat of the mixed slurry, so that an excellent granulation effect is achieved without supplement of liquid vapor or water. The composite fertilizer is comprehensive in nutrients and has the effects of promoting fertilizer effects and soil fertility, improving and repairing soil, improving quality and increasing yield of crops and enhancing disease resistance of the crops. The composite fertilizer is low in water content and adapts simultaneous-seeding of both seeds and the fertilizer.
Description
Technical field
The invention belongs to technical field of fertilizers, be specifically related to a kind of humic acid chelating biological and ecological compound manure and preparation method thereof.
Background technology
" crops YIZHIHUA, complete in fertile main ", for many years generally use of chemical fertilizer in China's agriculture production is agricultural development, increasing peasant income and rural area prosperity have made tremendous contribution.But use chemical fertilizer in a large number for a long time, also cause soil salt content too high, harmful ion concentration is excessive, and structural difference, easily hardens, and in soil, fertility is unbalanced, fertility declines, and crop growth is restricted.Show according to data, China's soil pollution is day by day serious, saline-alkali soil rapid development.Improve soil, preserving the ecological environment causes the great attention of the Chinese government, therefore China proposes the target of the year two thousand twenty chemical fertilizer zero growth rate.At present, fertilizer market being improved soil is only the inorganic salt containing medium trace element or oxide compound are simply joined in NPK fertilizers, due to solidification and the interionic antagonistic action of soil, cause the utilization ratio of medium trace element low, can not effectively deal with problems; Or adopt humic acids and xanthohumic acid as sequestrant, but owing to not having acidified or ammoniated treatment, cause sequestering power weak, chelate effect is poor; Or directly use calcium hydroxide (lime) adjustment of acidity soil, adopt calcium sulfate (gypsum) to regulate alkaline soil, product function is single, is the pulverulent material of simple blending substantially, when seed manure with broadcast big area universal, can not mechanical fertilization be met.Low or the nonnitrogenous phosphorus potassium element of the said products npk nutrient content, needs to use chemical fertilizer in addition, adds the recruitment cost of peasant.
In addition, along with environmental pollution increases the weight of, the heavy metal contamination of soil also becomes a problem demanding prompt solution.If the heavy metal in soil can not effectively be processed, absorbed by crops, accumulate in vivo, must produce chronic poisoning, grievous injury human health after products of its results is eaten, the malicious rice event in Hunan causes due to heavy metals exceeding standard.
Summary of the invention
The object of this invention is to provide a kind of humic acid chelating biological and ecological compound manure, by carrying out high temperature acidified process to humic acids, improving the quantity of active function group, improving the effect of humic acids.Utilize the heavy metal in humic acid chelating soil to generate precipitation, suppress the absorption of crop heavy metal.To reach improvement soil, improve the effect of crop quality.
Another object of the present invention utilizes microbial bacteria activation, rehabilitating soil, promotes soil fertility; Polyacrylamide is utilized to increase the crumb structure of soil and complete the anti-caking process of product; By adopting secondary chelating technology, improve the utilization ratio of nutrient.The product made has the advantages that function is complete, effective, cost is low.
A further object of the present invention is that product nutrient is comprehensive, not only containing organic, a large amount of sulphur, zinc, calcium, magnesium, silicon medium trace element, also containing N P and K macroelement, meets the needs of single fertilization, reduces cost of labor.
For solving the problems of the technologies described above, the technical solution used in the present invention is: a kind of humic acid chelating biological and ecological compound manure, and humic acids accounts for total mass percent 10%-12% dropping into material quantity, and it provides a large amount of organic matters, organic content >=65%; Magnesium nitrate accounts for total mass percent 5%-7% dropping into material quantity, containing a large amount of magnesium elements; Liquid sodium silicate accounts for total mass percent 5%-8% dropping into material quantity, containing a large amount of element silicons; The vitriol oil accounts for total mass percent 8%-10% dropping into material quantity, containing a large amount of element sulphurs; Liquefied ammonia accounts for total mass percent 4%-5% dropping into material quantity; Zinc sulfate accounts for total mass percent 2%-3% dropping into material quantity, and it is simultaneously containing zinc element, element sulphur; Polyacrylamide accounts for total mass percent 3%-5% dropping into material quantity; Microbial bacteria accounts for total mass percent 5%-8% dropping into material quantity, and other contains the raw material of nitrogen, phosphorus, potassium nutrition.
Described microbial bacteria is one or both combinations in vinelandii and phosphate solubilizing bacteria.
Described other contain nitrogen, phosphorus, potassium nutrition raw material be several mixtures in urea, double superhosphate, Repone K, potassium sulfate, double superhosphate also provides a large amount of calcium constituents.
Described the finished product N P and K total nutrient content >=30%, and containing organic, sulphur, zinc, calcium, magnesium, silicon medium trace element, soil improvement agent and microbiobacterial agent, moisture content≤2.5%%, reaches compound manure moisture national standard.Therefore, product strength is high, prevented from caking, meets seed manure with the requirement broadcast, long time storedly also there will not be particle to become mildewed and the problem of efflorescence.
The preparation method of described humic acid chelating biological and ecological compound manure, comprises the following steps:
(1) in sour method composite heat transfer, humic acids through measuring, magnesium nitrate, liquid sodium silicate, zinc sulfate and water are joined in the retort of sealing in proportion, heated and stirred 15-20 minute, make temperature 70-90 DEG C, the mixing solutions of concentration 70%-80%, complete the chelating first of humic acids and medium trace element.Utilize humic acids, magnesium nitrate and zinc sulfate to have good water-soluble, the higher solution of concentration can be made with liquid sodium silicate, to reduce the moisture brought in granulation process, for subsequent use;
(2) by sulfuric acid pump, the vitriol oil is joined in tubular reactor 1 after metering, the ammoniumsulphate soln making more than 400 DEG C will be joined in tubular reactor 1 after liquid ammonia gasification simultaneously, mix in tubular reactor 2 with the mixing solutions prepared from step (1), make mixed slurry, utilize high-temperature sulfuric acid ammonium solution to complete the acidifying of humic acids and the secondary chelating of humic acids and medium trace element.Medium trace element chelating operation is combined with sour method compound manure production technique, decreases chelating equipment, simplified chelate products preparation flow;
(3) by Microcomputer Burden System, several mixtures in the urea through measuring, double superhosphate and Repone K and potassium sulfate are added rotary drum granulator, in rotary drum granulator, granulation process is completed with the mixed slurry prepared from step (2), utilize mixed slurry as amount of liquid phase needed for granulating in granulation process, its heat is utilized to carry out heated material, in rotary drum granulator, temperature of charge controls at 70-80 DEG C, granulation time 5 ~ 8min;
(4) 0.5m-0.7m place is being exported apart from rotary drum granulator; utilize the feature of polyacrylamide good water solubility; through nozzle specially used; the fertiliser granulates after granulation is sprayed onto on the surface by after the polyacrylamide atomization after melting; carry out coating; utilize it can prevent recrystallization by absorption condensation water, the agglomeration resistance effect making fertilizer keep certain under higher humidity, realizes the function of product anti-caking.Polyacrylamide also has the feature improving soil aggregate, increase the gas permeability of soil, and reaching the effect of soil of keeping soil from packing together, improve, is a kind of good soil improvement agent;
(5) after granulation, material enters dryer, and dryer temperature out controls at 50-60 DEG C;
(6) after drying, carry out material screening, then the microbial inoculum prepared is sprayed onto on the fertiliser granulates of cooler ingress in the mode of atomization, utilizes the temperature of himself to be sucked fast by microbial inoculum; Microbial inoculum adds after drying process, fertilizer can be utilized at the strong absorbent of overdry condition, sucked fast in shaping particle by bacterium liquid.Prevent because drying process temperature is high, time length kills a large amount of microorganisms, affect the amount of survival of microbial bacteria, better protect bacterial classification;
(7) material is packed after entering cooling system cooling, compared with producing, decreases the baggage systems adding anti-caking agent, saves facility investment, reduce product cost with other compound manure;
Tubular reactor in described step (2) adopts three kinds of materials to make, built-in nitrogenize silicone tube, and outer steel pipe is protected, middle lining stone ink material.The material particularly important of tubular reactor, propylhomoserin direct reaction has high temperature, and temperature can reach more than 400 DEG C, severe corrosive, the feature that surging force is large.The material of pre-existing reactors does not all reach above-mentioned service requirements as corrosion-resistant, resistant to elevated temperatures materials such as tetrafluoro, graphite, titanium alloy, Hastelloys.The present invention is by adopting structural ceramic material: nitrogenize silicone tube, chemical formula is Si
3n
4.When utilizing its superhard, wear-resistant, corrosion-resistant, high temperature, the characteristic of anti-oxidant and opposing thermal shock is as tubular reactor main raw.For solving the problem that nitrogenize silicone tube is afraid of to collide with, outer steel pipe is protected, and middle lining stone ink material is for filling and fixed nitrogen SiClx pipe.
Humic acid chelating biological and ecological compound manure of the present invention and preparation method thereof compared with prior art has the following advantages:
1, product comprehensive nutrition of the present invention, nutrient content is high, not only containing N P and K macroelement, also containing a large amount of sulphur, zinc, calcium, magnesium, silicon medium trace element, organic matter and microbial bacteria.Product has active high, promotes fertilizer synergistic, promotes soil fertility, and improvement soil physico-chemical property, improves crop quality and output, strengthens the effect of crop disease-resistant ability.
2, medium trace element chelating operation combines with sour method compound manure production technique, eliminates the preparation of chelate products, concentrated, drying and other steps, has simplified preparation flow.Chelate products, as the direct granulation of granulating amount of liquid phase, in turn saves a large amount of steam, decreases energy consumption.
3, product of the present invention can utilize existing sour method compound fertilizer producing equipment to make; only need to increase simple utility appliance; polyacrylamide is added in rotary drum granulator outlet; anti-caking characteristics is utilized to achieve product anti-caking function; decrease follow-up parcel operation, reduce the investment of fertilizer cost and special coated equipment.
4, product moisture content≤2.5% of the present invention, reaches compound manure moisture national standard.Therefore, product strength is high, prevented from caking, meets seed manure with the requirement broadcast, long time storedly also there will not be particle to become mildewed and the problem of efflorescence.
Accompanying drawing explanation
Fig. 1 is humic acid chelating biological and ecological compound manure of the present invention and preparation method thereof schema.
Embodiment
Below in conjunction with the drawings and specific embodiments, the present invention is described in further detail:
As shown in Figure 1: humic acid chelating biological and ecological compound manure of the present invention, humic acids accounts for total mass percent 10%-12% dropping into material quantity, magnesium nitrate accounts for total mass percent 5%-7% dropping into material quantity, liquid sodium silicate accounts for total mass percent 5%-8% dropping into material quantity, the vitriol oil accounts for total mass percent 8%-10% dropping into material quantity, liquefied ammonia accounts for total mass percent 4%-5% dropping into material quantity, zinc sulfate accounts for total mass percent 2%-3% dropping into material quantity, polyacrylamide accounts for total mass percent 3%-5% dropping into material quantity, microbial bacteria accounts for total mass percent 5%-8% dropping into material quantity, and other contains nitrogen, phosphorus, the raw material of potassium nutrition.
Described microbial bacteria is one or both combinations in vinelandii and phosphate solubilizing bacteria.
Described other contain nitrogen, phosphorus, potassium nutrition raw material be several mixtures in urea, double superhosphate, Repone K, potassium sulfate.
The finished product N P and K total nutrient content >=30%, and containing organic, sulphur, zinc, calcium, magnesium, silicon medium trace element, soil improvement agent and microbiobacterial agent, moisture content≤2.5%.
The preparation method of described humic acid chelating biological and ecological compound manure, is characterized in that, comprise the following steps:
(1) in sour method composite heat transfer, humic acids through measuring, magnesium nitrate, liquid sodium silicate, zinc sulfate and water are joined in the retort of sealing in proportion, heated and stirred 15-20 minute, make temperature 70-90 DEG C, the mixing solutions of concentration 70%-80%, complete the chelating first of humic acids and medium trace element, for subsequent use;
(2) by sulfuric acid pump, the vitriol oil is joined in tubular reactor 1 after metering, the ammoniumsulphate soln making more than 400 DEG C will be joined in tubular reactor 1 after liquid ammonia gasification simultaneously, mix in tubular reactor 2 with the mixing solutions prepared from step (1), make mixed slurry, utilize high-temperature sulfuric acid ammonium solution to complete the acidifying of humic acids and the secondary chelating of humic acids and medium trace element;
(3) by Microcomputer Burden System, several mixtures in the urea through measuring, double superhosphate and Repone K and potassium sulfate are added rotary drum granulator, in rotary drum granulator, granulation process is completed with the mixed slurry prepared from step (2), utilize mixed slurry as amount of liquid phase needed for granulating in granulation process, its heat is utilized to carry out heated material, in rotary drum granulator, temperature of charge controls at 70-80 DEG C, granulation time 5 ~ 8min;
(4) apart from rotary drum granulator outlet 0.5m-0.7m place, through nozzle specially used, be sprayed onto the fertiliser granulates after granulation on the surface by after the polyacrylamide atomization after melting, carry out coating, complete the process of product anti-caking.
(5) after granulation, material enters dryer, and dryer temperature out controls at 50-60 DEG C;
(6) after drying, carry out material screening, then the microbial inoculum prepared is sprayed onto on the fertiliser granulates of cooler ingress in the mode of atomization, utilizes the temperature of himself to be sucked fast by microbial inoculum;
(7) material is packed after entering cooling system cooling.
The preparation method of described humic acid chelating biological and ecological compound manure, is characterized in that, the tubular reactor in described step (2) adopts three kinds of materials to make, built-in nitrogenize silicone tube, and outer steel pipe is protected, middle lining stone ink material.
Below by example, the invention will be further elaborated:
Embodiment 1
Prepare nitrogen, phosphorus, potassium content 15%-10%-5%, and containing organic, sulphur, zinc, calcium, magnesium, silicon medium trace element and bacteria agent, for 1 ton of products material norm quota of consumption:
Concrete Production Flow Chart:
1, by humic acids (mass percent, lower same, containing organic 65%) 100 kilograms, magnesium nitrate 60 kilograms (containing magnesium elements), liquid sodium silicate 50 kilograms (containing element silicon), 20 kilograms, zinc sulfate (sulfur-bearing, zinc element) make mass percentage concentration in retort with water be 75%, the mixing solutions that temperature is 85 DEG C, heated and stirred 20 minutes, completes the chelating first of humic acids and medium trace element, for subsequent use;
2, by concentration be 98% the vitriol oil (containing element sulphur) 80 kilograms, squeeze into tubular reactor 1 with pump after metering, liquid nitrogen 40 kilograms, joins tubular reactor 1 after metering, make the ammoniumsulphate soln of about 400 DEG C, enter into tubular reactor 2 under the effect of the pressure;
3, mixing solutions step 1 prepared is driven into tubular reactor 2 with pump after metering, makes mixed slurry with the high-temperature sulfuric acid ammonium solution of step 2, utilizes high-temperature sulfuric acid ammonium solution to complete the acidifying of humic acids and the secondary chelating of humic acids and medium trace element;
4, add 255 kilograms, urea (containing N46.2%) through computer metering, double superhosphate is (containing P
2o
545%, and containing calcium constituent) 225 kilograms, Repone K is (containing K
2o60%) 85 kilograms, above-mentioned material mixes in rotary drum granulator with from step 3 mixed slurry after pressurizing atomizing, after 7min granulation, by polyacrylamide 35 kilograms good for melting, after pressurizing atomizing, be sprayed onto fertiliser granulates on the surface, complete anti-caking process;
5, material enters dryer, dry 35min, drying machine Outlet Gas Temperature is 55 DEG C, and respectively through the screening of sieve diameter 2.0mm dusting cover and sieve diameter 4.5mm scalping screening after drying, the pulverulent material after dusting cover returns rotary drum granulator with the macrobead after scalping together with fragmentation;
6, salable product enter cooler, be sprayed onto on fertiliser granulates, pack biological bacteria liquid (50 kilograms) after cooling in the mode be atomized, obtained qualified product.Product is containing N-P
2o
5-K
2o is 15.1%-10.1%-5.1%, and containing organic and medium trace element, granularity is 2-4.5mm, moisture content 2.4%.
Embodiment 2
Prepare nitrogen, phosphorus, potassium content 15%-5%-10%, and containing organic, sulphur, zinc, calcium, magnesium, silicon medium trace element and bacteria agent, for 1 ton of products material norm quota of consumption:
Concrete Production Flow Chart:
1, by humic acids (mass percent, lower same, containing organic 65%) 105 kg, magnesium nitrate 65 kilograms (containing magnesium elements), liquid sodium silicate 60 kilograms (containing element silicon), 20 kilograms, zinc sulfate (sulfur-bearing, zinc element) make mass percentage concentration in retort with water be 80%, the mixing solutions that temperature is 85 DEG C, heated and stirred 20 minutes, completes the chelating first of humic acids and medium trace element, for subsequent use;
2, by concentration be 98% the vitriol oil (containing element sulphur) 80 kilograms, squeeze into tubular reactor 1 with pump after metering, liquid nitrogen 40 kilograms, joins tubular reactor 1 after metering, make the ammoniumsulphate soln of about 400 DEG C, enter into tubular reactor 2 under the effect of the pressure;
3, mixing solutions step 1 prepared is driven into tubular reactor 2 with pump after metering, makes mixed slurry with the high-temperature sulfuric acid ammonium solution of step 2, utilizes high-temperature sulfuric acid ammonium solution to complete the acidifying of humic acids and the secondary chelating of humic acids and medium trace element;
4, add 255 kilograms, urea (containing N46.2%) through computer metering, double superhosphate is (containing P
2o
545%, and containing calcium constituent) 115 kilograms, Repone K is (containing K
2o60%) 170 kilograms, above-mentioned material mixes in rotary drum granulator with from step 3 mixed slurry after pressurizing atomizing, after 6min granulation, by polyacrylamide 40 kilograms good for melting, after pressurizing atomizing, be sprayed onto fertiliser granulates on the surface, complete anti-caking process;
5, material enters dryer, dry 35min, drying machine Outlet Gas Temperature is 55 DEG C, and respectively through the screening of sieve diameter 2.0mm dusting cover and sieve diameter 4.5mm scalping screening after drying, the pulverulent material after dusting cover returns rotary drum granulator with the macrobead after scalping together with fragmentation;
6, salable product enter cooler, be sprayed onto on fertiliser granulates, pack biological bacteria liquid (50 kilograms) after cooling in the mode be atomized, obtained qualified product.Product is containing N-P
2o
5-K
2o is 15.1%-5.2%-10.2%, and containing organic and medium trace element, granularity is 2-4.5mm, water content 2.3%.
The above is only the preferred embodiment of the present invention; it should be pointed out that for those skilled in the art, under the premise without departing from the principles of the invention; can also make some improvements and modifications, these improvements and modifications also should be considered as protection scope of the present invention.
Claims (6)
1. a humic acid chelating biological and ecological compound manure, it is characterized in that, humic acids accounts for total mass percent 10%-12% dropping into material quantity, magnesium nitrate accounts for total mass percent 5%-7% dropping into material quantity, liquid sodium silicate accounts for total mass percent 5%-8% dropping into material quantity, the vitriol oil accounts for total mass percent 8%-10% dropping into material quantity, liquefied ammonia accounts for total mass percent 4%-5% dropping into material quantity, zinc sulfate accounts for total mass percent 2%-3% dropping into material quantity, polyacrylamide accounts for total mass percent 3%-5% dropping into material quantity, microbial bacteria accounts for total mass percent 5%-8% dropping into material quantity, and other contains nitrogen, phosphorus, the raw material of potassium nutrition.
2. humic acid chelating biological and ecological compound manure according to claim 1, is characterized in that, described microbial bacteria is one or both combinations in vinelandii and phosphate solubilizing bacteria.
3. humic acid chelating biological and ecological compound manure according to claim 1, is characterized in that, described other contain nitrogen, phosphorus, potassium nutrition raw material be several mixtures in urea, double superhosphate, Repone K, potassium sulfate.
4. humic acid chelating biological and ecological compound manure according to claim 1, is characterized in that, the finished product N P and K total nutrient content≤30%, and containing organic, sulphur, zinc, calcium, magnesium, silicon medium trace element, soil improvement agent and microbiobacterial agent, moisture content≤2.5%.
5. a preparation method for humic acid chelating biological and ecological compound manure as claimed in claim 1, is characterized in that, comprise the following steps:
(1) in sour method composite heat transfer, humic acids through measuring, magnesium nitrate, liquid sodium silicate, zinc sulfate and water are joined in the retort of sealing in proportion, heated and stirred 15-20 minute, make temperature 70-90 DEG C, the mixing solutions of concentration 70%-80%, complete the chelating first of humic acids and medium trace element, for subsequent use;
(2) by sulfuric acid pump, the vitriol oil is joined in tubular reactor 1 after metering, the ammoniumsulphate soln making more than 400 DEG C will be joined in tubular reactor 1 after liquid ammonia gasification simultaneously, mix in tubular reactor 2 with the mixing solutions prepared from step (1), make mixed slurry, utilize high-temperature sulfuric acid ammonium solution to complete the acidifying of humic acids and the secondary chelating of humic acids and medium trace element;
(3) by Microcomputer Burden System, several mixtures in the urea through measuring, double superhosphate and Repone K and potassium sulfate are added rotary drum granulator, in rotary drum granulator, granulation process is completed with the mixed slurry prepared from step (2), utilize mixed slurry as amount of liquid phase needed for granulating in granulation process, its heat is utilized to carry out heated material, in rotary drum granulator, temperature of charge controls at 70-80 DEG C, granulation time 5 ~ 8min;
(4) apart from rotary drum granulator outlet 0.5m-0.7m place, through nozzle specially used, be sprayed onto the fertiliser granulates after granulation on the surface by after the polyacrylamide atomization after melting, carry out coating, complete the process of product anti-caking;
(5) after granulation, material enters dryer, and dryer temperature out controls at 50-60 DEG C;
(6) after drying, carry out material screening, then the microbial inoculum prepared is sprayed onto on the fertiliser granulates of cooler ingress in the mode of atomization, utilizes the temperature of himself to be sucked fast by microbial inoculum;
(7) material is packed after entering cooling system cooling.
6. the preparation method of humic acid chelating biological and ecological compound manure according to claim 5; it is characterized in that, the tubular reactor in described step (2) adopts three kinds of materials to make, built-in nitrogenize silicone tube; outer steel pipe is protected, middle lining stone ink material.
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| CN109438128A (en) * | 2018-12-25 | 2019-03-08 | 孟宪英 | A variety of phosphorus element source compound fertilizers of organic and inorganic and preparation method thereof |
| CN114478141A (en) * | 2022-03-25 | 2022-05-13 | 云南磷化集团海口磷业有限公司 | Magnesium and silicon-rich sulfur-coated slow-release fertilizer special for rice and preparation method thereof |
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Application publication date: 20160113 |