CN1837157A - Water-soluble humic acid paste-form fertilizer and its making process - Google Patents
Water-soluble humic acid paste-form fertilizer and its making process Download PDFInfo
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Abstract
Disclosed is a grease-form water-soluble humic acid fertilizer, which comprises (by weight percent) 20-45% of weathered coal powder, 10-35% of urea, 5-15% of phosphoric ammonium, 3-25% of potassium chloride, 4-30% of potassium sulfate, 0-20% of raw material containing N, P, K, 0-5% of medium and trace element compounds, 1.0-3.55 of sodium hydroxide, 0.1-0.5% of polyacrylamide, and 15-35% of water.
Description
Technical field
The present invention relates to humic acid fertilizer, specifically a kind of water-soluble humic acid paste-form fertilizer and working method thereof.
Background technology
Humic acid fertilizer relatively has tangible effect of increasing production, improves quality of agricultural product, improves the plant nutrient utilization ratio, saves resource, reduces disease, prevents chemical fertilizer and agricultural chemicals pollution on the environment from the source with itself and chemical fertilizer, improve the soil, drought resisting, cold-resistant, anti-fine quality such as saline and alkaline are accepted by the peasant gradually, become the important member of fertilizer family.
The humic acids solid fertilizer adds and often earlier humic acid material is carried out activation treatment man-hour, it is water-soluble to increase it, this process generally need be that medium could be realized with water, must carry out drying after the activation and remove redundant moisture, again with contain plant nutrient (N, P, K, Ca, Mg, S, Mn, Fe, Zn, B, Cu, Mo etc.) compound and make the solid Remixed humic acid fertilizer.Mixing process plant nutrient and activated humic acid tentatively carry out complexing, chelatropic reaction, after fertilizer enters soil, in the soil solution, further carry out complexing, chelatropic reaction under the effect of water, plant nutrient is played prevent from loss, slowly-releasing, controlled-release function to provide balanced nutritious to crop.
Humic acid paste-form fertilizer is series product need developing along with humic acid fertilizer development and agriculture production in recent years, it has the slow controlled-release effect of operational path weak point, save energy, nutrient characteristics better, that production cost is lower and is subjected to manufacturer and welcomes, it is soluble in water, making things convenient for the peasant to dash executes, fertigation is subjected to the peasant and welcomes.
When humic acid paste-form fertilizer is produced, the block of indissoluble in humic acids reactivation process, often occurs, be difficult to during stirring blend, finally bring product into, cause the product nutrient inhomogeneous, when the peasant uses, agglomerate is difficult to disperse, and causes and uses inconvenience, peasant to wish to use evenly easily molten paste product.
Summary of the invention
The purpose of this invention is to provide a kind of good, even easily molten water-soluble humic acid paste-form fertilizer and working method thereof when using of high crop yield, quality of agricultural product that make.The present invention has reduced the intensity of the associated complex that forms by water molecules hydrogen bond between the soluble humic acid molecules of salt by adjusting materials kind and raw material interpolation order, has prevented the formation of block, and quality product is improved.
Another object of the present invention provides a kind of fulvo acid content height, can play the evenly complete processing of easily molten water-soluble humic acid paste-form fertilizer of slow, controlled-release function, energy-conservation, product completely with plant nutrient complexing, chelating.Adopt humic acids content more than 50% (butt), the natural weathered coal (usually adopt the humic acids content of weathered coal can be 50-70%, moisture content 25-35%) of moisture content below 35% is main raw material, with urea is that activator is under alkaline condition, carry out activation treatment and make the fulvo acid ammonium, nutrient with the plant needs carries out complexing, chelatropic reaction again, makes water-soluble humic acid paste-form fertilizer.
For achieving the above object, the technical solution used in the present invention is:
A kind of water-soluble humic acid paste-form fertilizer, it consists of by weight percentage,
20-45% weathering coal dust, 10-35% urea, 5-15% phosphorus ammonium, 3-25% Repone K, the 4-30% vitriolate of tartar, other contain the raw material of N, P, K 0-20%, trace element (Ca, Mg, S, Mn, Fe, Zn, B, Cu, Mo etc.) compound among the 0-5%, 1.0-3.5% sodium hydroxide, 0.1~0.5% polyacrylamide is pressed, 15-35% water.
The described raw material that other contain N, P, K be meant ammonium sulfate or ammonium chloride and/ammonium nitrate, nitric acid phosphorus ammonium or saltpetre etc.; The phosphorus ammonium is monoammonium phosphate and/or diammonium phosphate; Middle trace compound is meant: the lime carbonate in the Ca element, ground phosphate rock or terra alba etc.; Magnesite breeze in the Mg element or magnesia powder etc.; SULPHUR POWDER in the S element or vitriol etc.; Water glass in the Si element; Manganous sulfate in the Mn element, manganese oxide or rhodochrosite powder etc.; Ferrous sulfate in the Fe element or sparring breeze etc.; Zinc sulfate in the Zn element or zinc oxide etc.; Copper sulfate in the Cu element or cupric oxide etc.; Boric acid in the B element or borax etc.; Ammonium molybdate in the Mo element or Sodium orthomolybdate etc.
The working method of water-soluble humic acid paste-form fertilizer, specific operation process is as follows:
1) material should be pulverized earlier before adding reactor; Humic acids butt weight content 50% or 50% above, the weathered coal of moisture content below 35% are worn into fine powder by 100 mesh sieves through pulverizing mill, water-soluble material except that urea is crushed to by 40 mesh sieves with pulverizer, insoluble raw material is milled to by 100 mesh sieves, standby;
2) in reactor, hot water by 70~90 ℃ of ratio of components addings, under agitation successively add weathering coal dust, urea in order, stir and evenly be sprinkled into sodium hydroxide after moistening, heating makes the still temperature remain in 70~90 ℃, after being stirred to material and evenly not having granule, insulated and stirred is more than half an hour again, stop heating then, stir and to be sequentially added into Repone K down, other contain N, P, K raw material, phosphorus ammonium, vitriolate of tartar and middle trace compound, stir evenly the back and add polyacrylamide, stir to evenly back discharging of thickness, this material is through being packaged to be the humic acid paste-form fertilizer product.
The present invention has following advantage:
1. be that activator two gets at one stroke with urea.Urea is activator in water-soluble humic acid paste-form fertilizer, is again the source of nitrogen in the fertilizer, has reduced the share of using other activator to take, can improve nutrient content in the paste-form fertilizer.
2. activation, complexing, chelatropic reaction are more abundant, and be slow, controlled-release effect is good.Activating process of the present invention, the fulvo acid transformation efficiency is higher, reaches as high as 95%, and fulvo acid and total nutrient weight ratio be 1: 1.5~4.2, and complexing, chelating is more abundant, slow, controlled-release effect is more remarkable.
The present invention is activator with urea, and in 70-90 ℃ alkaline medium, urea moiety hydrolysis (reversed reaction of urea synthesis) is NH
3And CO
2NH
3In the aqueous solution with weathered coal in the ammonium humate of humic acids water generation reaction dissolubility; CO
2Absorbed generation carbonate by ammoniacal liquor or alkali, insoluble humate in carbonate solution and the weathered coal (mainly being Ca, Mg, Fe, the Al salt of humic acids) reacts, and generates the oxyhydroxide of the littler lime carbonate of water miscible humate and solubility product, magnesium basic carbonate and iron, aluminium.Humic acids in the weathered coal and insoluble humate all can be converted into water miscible humate like this, have improved the transformation efficiency of fulvo acid greatly.Solution alkalescence realizes that by adding small amounts of sodium hydroxide it has been accelerated hydrolysis of urea and has generated NH
3And CO
2Speed, though sodium is not the necessary nutrient elements of most plants, it can replace the potassium in the insoluble potassium-bearing mineral in soil, improves the content of soluble potassium in the soil, also is useful composition.
3. production cost is low.Operational path of the present invention is short, and required equipment is few, and chemical reaction carries out in same device, saves facility investment, has also saved human and material resources, has reduced manufacturing cost.
4. use conveniently.Paste that the present invention produces is fertile fine and smooth, evenly, and no agglomerate phenomenon in the cream is disperseed in water easily, makes things convenient for the peasant to use, can be used for after the dilution towards execute, drip irrigation, spray, row replacement, also can be directly used in and spread manuer in holes.
5. applied widely.This fertilizer pH value is neutral, is applicable to different soils, Different Crop.
6. have the various advantages of humic acid fertilizer:
(1) effect of increasing production is obvious: compare with the equal nutrient content chemical fertilizer, generally increase production 5-30%.
(2) it is remarkable to improve the quality of agricultural product effect: with use chemical fertilizer relatively, the agricultural-food mouthfeel is better, the marketable farm produce height, agricultural-food sugar degree, Vc content, aminoacids content increase, acidity, nitrate content, heavy metal content reduce, and are subjected to the human consumer and welcome.
(3) crop anti-adversity improves: improve crop drought resistance, cold-resistant, anti-saline and alkaline, disease resistance ability.Robust plant uses no or little agricultural chemicals, has reduced the agricultural chemicals input, has reduced cost and has also reduced pesticide residue, helps the consumer health.
(4) crop bloom in advance, the result, percentage of fertile fruit improves, listing delays plant senesecence in advance, increases farmers' income.
(5) soil there is improving effect.The soil that hardens to using chemical fertilizer to cause all the year round can recover crumb structure especially, increases the nutrient savings, improves soil throughput again.
Embodiment
Embodiment 1 produces total nutrient (N+P
2O
5+ K
2O) 〉=20% the vegetables paste is fertile 1 ton.
The fertile complete processing of water-soluble humic acid paste-form:
Prescription: weathering coal dust 343kg, Repone K 60kg, vitriolate of tartar 111.2kg, urea 147.8kg, monoammonium phosphate 61.3kg, middle trace compound 10kg, sodium hydroxide 25kg, polyacrylamide 1kg, water 240.7kg.(water has vapour loss in process of production, should suitably increase consumption, and increasing amount should be passed through the ganging of products adjustment)
Middle trace compound 10kg, wherein: magnesium oxide (MgO) 4.398kg; Manganous sulfate (MnSO
4H
2O) 2.639; Ferrous sulfate (FeSO
47H
2O) 1.671kg; Zinc sulfate (ZnSO
47H
2O) 0.739kg; Boric acid (H
3BO
3) 0.484kg; Copper sulfate (CuSO
45H
2O) 0.066kg; Order acid ammonium ((NH
3)
2Mo O
4) 0.003kg;
More than humic acids content 50% (butt), the weathered coal of moisture content below 35% worn into fine powder by 100 mesh sieves through pulverizing mill, other water-soluble materials except that urea are crushed to by 40 mesh sieves with pulverizer, insoluble raw material is milled to by 100 mesh sieves, standby.
In the reactor of band stirring and heating jacket, add 80 ℃ of hot water by prescription, stir and successively add weathering coal dust, urea down, evenly be sprinkled into sodium hydroxide after stirring evenly, temperature is risen to more than 80~90 ℃, make the uniform nothing of material granule back insulated and stirred half an hour, add Repone K, monoammonium phosphate, vitriolate of tartar, middle trace compound again, the back that stirs adds polyacrylamide to be stirred to evenly back discharging of thickness, becomes product through packing again.
Product is after testing: 1) N+P
2O
5+ K
2O=20.34%; 2) fulvo acid: 10.63%; 3) pH=7.64.
Embodiment 2
Produce total nutrient (N+P
2O
5+ K
2O) 〉=25% humic acids lotion fertilizer.
Prescription: weathering coal dust 272.2kg, Repone K 60kg, vitriolate of tartar 106.2kg, urea 245.3kg, monoammonium phosphate 79.7kg, middle trace compound 10kg, sodium hydroxide 20.8kg, polyacrylamide 1kg, water 204.8kg.(water has vapour loss in process of production, should suitably increase consumption, and increasing amount should be passed through the ganging of products adjustment)
Middle trace compound 10kg, wherein: magnesium oxide (MgO) 4.398kg; Manganous sulfate (MnSO
4H
2O) 2.639; Ferrous sulfate (FeSO
47H
2O) 1.671kg; Zinc sulfate (ZnSO
47H
2O) 0.739kg; Boric acid (H
3BO
3) 0.484kg; Copper sulfate (CuSO
45H
2O) 0.066kg; Ammonium molybdate ((NH
3)
2Mo O
4) 0.003kg;
More than humic acids content 50% (butt), the weathered coal of moisture content below 35% worn into fine powder by 100 mesh sieves through pulverizing mill, other water-soluble materials except that urea are crushed to by 40 mesh sieves with pulverizer, insoluble raw material is milled to by 100 mesh sieves, standby.
Production stage: in the reactor of carrying vapour chuck and agitator, add 85 ℃ of left and right sides hot water by ratio of components, chuck feeds steam or 90 ℃ of hot water circulation, under agitation successively add the weathering coal dust, urea, stir and evenly be sprinkled into sodium hydroxide after moistening, with still temperature rise to 70~80 ℃, after being stirred to material and evenly not having granule, insulated and stirred half an hour again, stop heating then, add Repone K, contain N, P, the K raw material, the phosphorus ammonium, vitriolate of tartar and middle trace compound stir evenly the back and add polyacrylamide, stir to evenly back discharging of thickness, this material is through being packaged to be the humic acid paste-form fertilizer product.
Product is after testing: 1) N+P
2O
5+ K
2O=25.10%; 2) fulvo acid: 8.94%; 3) pH=7.41.
Fulvo acid lotion fertilizer technology index of the present invention:
Classification | I | II | III |
Total nutrient content (N+P 2O 5+K 2O)% ≥ | 25 | 20 | 15 |
Fulvo acid content % 〉= | 6 | 8 | 10 |
pH | 6-8 |
Claims (5)
1. water-soluble humic acid paste-form fertilizer, it is characterized in that: it consists of by weight percentage,
20-45% weathering coal dust, 10-35% urea, 5-15% phosphorus ammonium, 3-25% Repone K, the 4-30% vitriolate of tartar, other contain the raw material of N, P, K 0-20%, trace compound among the 0-5%, 1.0-3.5% sodium hydroxide, 0.1~0.5% polyacrylamide is pressed, 15-35% water.
2. according to the described water-soluble humic acid paste-form fertilizer of claim 1, it is characterized in that: the described raw material that other contain N, P, K is meant ammonium sulfate or ammonium chloride, and/or ammonium nitrate, nitric acid phosphorus ammonium or saltpetre; Described phosphorus ammonium is monoammonium phosphate and/or diammonium phosphate.
3. according to the described water-soluble humic acid paste-form fertilizer of claim 1, it is characterized in that: trace compound is meant the lime carbonate in the Ca element, ground phosphate rock or terra alba in described; Magnesite breeze or magnesia powder in the Mg element; SULPHUR POWDER in the S element or vitriol; Water glass in the Si element; Manganous sulfate in the Mn element, manganese oxide or rhodochrosite powder; Ferrous sulfate in the Fe element or sparring breeze; Zinc sulfate in the Zn element or zinc oxide; Copper sulfate in the Cu element or cupric oxide; Boric acid in the B element or borax; Ammonium molybdate in the Mo element or Sodium orthomolybdate.
4. the working method of the described water-soluble humic acid paste-form fertilizer of claim 1, it is characterized in that: in reactor, hot water by 70~90 ℃ of ratio of components addings, under agitation successively add the weathering coal dust in order, urea, stir and evenly be sprinkled into sodium hydroxide after moistening, heating makes the still temperature remain in 70~90 ℃, after being stirred to material and evenly not having granule, insulated and stirred is more than half an hour again, stop heating then, be sequentially added into Repone K under stirring, other contain N, P, the K raw material, the phosphorus ammonium, vitriolate of tartar and middle trace compound stir evenly the back and add polyacrylamide, stir to evenly back discharging of thickness, this material is through being packaged to be the humic acid paste-form fertilizer product.
5. according to the working method of the described water-soluble humic acid paste-form fertilizer of claim 4, it is characterized in that: material should be pulverized earlier before adding reactor; Humic acids butt weight content 50% or 50% above, the weathered coal of moisture content below 35% are worn into fine powder by 100 mesh sieves through pulverizing mill, water-soluble material except that urea is crushed to by 40 mesh sieves with pulverizer, insoluble raw material is milled to by 100 mesh sieves, standby.
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