CN103011941A - Production method of compound fertilizer - Google Patents
Production method of compound fertilizer Download PDFInfo
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- CN103011941A CN103011941A CN2013100017510A CN201310001751A CN103011941A CN 103011941 A CN103011941 A CN 103011941A CN 2013100017510 A CN2013100017510 A CN 2013100017510A CN 201310001751 A CN201310001751 A CN 201310001751A CN 103011941 A CN103011941 A CN 103011941A
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- C—CHEMISTRY; METALLURGY
- C05—FERTILISERS; MANUFACTURE THEREOF
- C05F—ORGANIC FERTILISERS NOT COVERED BY SUBCLASSES C05B, C05C, e.g. FERTILISERS FROM WASTE OR REFUSE
- C05F11/00—Other organic fertilisers
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- C—CHEMISTRY; METALLURGY
- C05—FERTILISERS; MANUFACTURE THEREOF
- C05C—NITROGENOUS FERTILISERS
- C05C3/00—Fertilisers containing other salts of ammonia or ammonia itself, e.g. gas liquor
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- C—CHEMISTRY; METALLURGY
- C05—FERTILISERS; MANUFACTURE THEREOF
- C05D—INORGANIC FERTILISERS NOT COVERED BY SUBCLASSES C05B, C05C; FERTILISERS PRODUCING CARBON DIOXIDE
- C05D9/00—Other inorganic fertilisers
- C05D9/02—Other inorganic fertilisers containing trace elements
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Abstract
The invention provides a production method of a compound fertilizer, which comprises the following production steps: (1) cleaning cattail and crop straws, pulverizing, mixing, adding a compound bacterium solution and a sodium hydrogen carbonate solution, fermenting, and then adding a potassium hydroxide solution until the pH value is 7-8, thus obtaining a humate solution; (2) mixing antioxidant and inorganic salt of secondary/minor elements with the humate solution, regulating the pH value to 5-7, heating, and stirring to obtain a chelation reaction solution; (3) transferring the chelation reaction solution into a buffer tank, keeping the pH value at 5-7, and keeping the temperature to obtain a chelation product; (4) evenly mixing a nitrogen fertilizer, a phosphate fertilizer, a potassium fertilizer and kaolin, and then putting into a ammonia and acid granulator; (5) introducing ammonia gas and dilute sulfuric acid into an inorganic fertilizer material layer, sprinkling the chelation product, mixing, and granulating; and (6) after the granulating operation is finished, drying, screening, and performing surface treatment to obtain the organic chelate compound fertilizer. The organic chelate compound fertilizer prepared through the process provided by the invention is low in application amount and high in stability and plant absorptivity.
Description
Technical field
The invention belongs to the production field of composite fertilizer, relate to a kind of production method of composite fertilizer.
Background technology
In recent years, nitrogen, phosphorus, K compound fertilizer are commonly used, owing to ignored the interpolation of middle trace element, although therefore increased the usage quantity of compound manure, the output of farm crop not only is not effectively improved, and has occurred on the contrary that crop pest increases the weight of, the phenomenon of soil, pollution of waterhead.The importance of recognizing gradually that for addressing this problem the investigator middle trace element adds.At present, most compound manure that contains middle trace element only is that inorganic salt or oxide compound with middle trace element simply joins in the nitrogen-phosphorus-potassium compound fertilizer on the market, because solidification and the interionic antagonistic action of soil, the method often causes the utilization ratio of middle trace element low, can not effectively address the above problem.Part producer adopts EDTA, EDDHA etc. as sequestrant, but exist expensive, the problem that production cost is high.Other has part producer to adopt humic acids and xanthohumic acid as sequestrant, but its sequestering power a little less than.
In addition, along with environmental pollution increases the weight of, Heavy metal pollution of soil also becomes a problem demanding prompt solution, and the heavy metal in the soil mainly comes from the aspects such as agricultural chemicals, waste water, mud and atmospheric precipitation.If the heavy metal that contains in the soil can not effectively be processed, will absorbed by cropsly accumulate, final harm humans is healthy.At present, the improvement of heavy metal in soil can not realize thorough removing, and residual part heavy metal is very easily by plant absorbing and enrichment.
Summary of the invention
The objective of the invention is provides a kind of production method of composite fertilizer for above-mentioned problems of the prior art.
Purpose of the present invention realizes by the following technical solutions: a kind of production method of composite fertilizer, and its production stage is:
1. after the stem or leaf of cattail and agricultural crop straw being cleaned respectively, be crushed to the 20-60 order, mix by weight 2-3:1, then add composite bacteria liquid and concentration and be 15% sodium hydrogen carbonate solution, stir 2h after, sealing, then 60-80 ℃ of lower heat-preservation fermentation 5 days add 15% potassium hydroxide solution in the liquid that has fermented to pH=7-8, obtains corruption and plant liquid, wherein, the weight ratio of the mixture of the stem or leaf of cattail and agricultural crop straw, composite bacteria liquid, 15% sodium hydrogen carbonate solution is 1:0.2-0.3:0.05-0.1;
2. the inorganic salt with antioxidant, middle trace element join in the chelatropic reaction still, then add corruption in the chelatropic reaction still and plant liquid, be adjusted to pH=5-7 with mineral acid or mineral alkali dilute solution, saturation steam with 0.6-0.9MPa is warming up to 60-80 ℃ with the solution in the chelatropic reaction still, stirring reaction 0.5-1.2h after reaction is finished, obtains chelatropic reaction liquid, the total content of middle trace element is 1:2-3 with rotten weight ratio of planting liquid, and oxidation inhibitor is 0.5-3:2-3 with rotten weight ratio of planting liquid;
3. chelatropic reaction liquid is changed in the chelating dashpot, keep pH=5-7, obtain the chelating product behind the 60-80 ℃ of lower insulation 30-40min;
4. nitrogenous fertilizer, phosphate fertilizer, potash fertilizer and filler kaolin are joined in the mixing machine and mix by weight 3.2-3.4:4.5-4.9:3.8-4.8:1, through belt conveyor mixed inorganic fertilizer material is evenly put in the propylhomoserin tablets press;
5. in tablets press by ammonia pipe and acid tube respectively the dilute sulphuric acid of ammonia and 50% is passed into inorganic fertilizer material bed in, then with the chelating product through high-pressure fog be injected to inorganic fertilizer material bed in, mix rear granulation, each composition weight proportioning is as follows: ammonia 3,50% dilute sulphuric acid 4, inorganic fertilizer material 82.5-92.4, chelating product 9.1-12.3;
6. after granulation is finished, dry, screening, surface treatment, obtain organic chelate mould assembly composite fertilizer.
The step 1. preparation method of described composite bacteria liquid is: the Bacillus subtilus that laboratory culture is good and saccharomycetic bacterial classification all access in the scale-up medium by the inoculum size of 4-8%, 30-40 ℃ of lower starvation stir culture 3 days, Bacillus subtilus reaches 4-6 hundred million/mL, yeast reaches after 2-4 hundred million/mL, obtains composite bacteria liquid;
The prescription of scale-up medium is: glucose 4.7g/kg, and peptone 6.2g/ kg, extractum carnis 2.1g/ kg, magnesium sulfate heptahydrate 0.4g/ kg, manganous sulfate 0.1g/ kg, sodium acetate trihydrate 4.2g/ kg, pH=6-7 adds water and supplies.
The oxidation inhibitor of step in 2. is 1:1 with rotten mass ratio of planting liquid.
Step 2. described middle trace element and element wt proportioning is: Ca 9-10, Mg 1.4-3, Zn 2.3-3.6, Fe 1.3-2.1, Mn 0.6-1, Cu 0.7-0.9, the inorganic salt of described middle trace element are any in vitriol, muriate, the carbonate.
Step 2. described oxidation inhibitor is in reduced iron powder, xitix, citric acid, oxysuccinic acid, the fumaric acid any.
Step 1. described agricultural crop straw can be the stalk of any one farm crop in wheat, paddy rice, corn, the Chinese sorghum.
The nitrogenous fertilizer of step described in 4. is urea, and phosphate fertilizer is monoammonium phosphate or diammonium phosphate, and potash fertilizer is vitriolate of tartar or Repone K.
A kind of production method of composite fertilizer, concrete processing step is as follows:
1. after the 15kg stem or leaf of cattail and 6kg rice straw being cleaned respectively, be crushed to 40 orders, adding 5.3kg composite bacteria liquid and 1.7kg concentration are 15% sodium hydrogen carbonate solution after mixing, after stirring 2h, sealing, then 70 ℃ of lower heat-preservation fermentations 5 days add 15% potassium hydroxide solution in the liquid that has fermented to pH=7.5, obtain the 28.3kg corruption and plant liquid;
The preparation method of composite bacteria liquid is: with Bacillus subtilus and saccharomycetic bacterial classification all by in 6% the inoculum size access scale-up medium, 35 ℃ of lower starvation stir culture 3 days, Bacillus subtilus reaches 500,000,000/mL, yeast reaches after 300,000,000/mL, obtains composite bacteria liquid;
The prescription of scale-up medium is: glucose 24.9g, and peptone 32.9g, extractum carnis 11.1g, magnesium sulfate heptahydrate 2.1g, manganous sulfate 0.5g, sodium acetate trihydrate 22.3g, pH=6.5 adds water to 5.3kg;
2. 19.8kg citric acid, 20.5kg calcium sulfate, 4.4kg magnesiumcarbonate, 4kg zinc chloride, 3.6kg iron protochloride, 1.7kg Manganous chloride tetrahydrate, 1.26kg copper sulfate are joined in the chelatropic reaction still, then add the 28.3kg corruption in the chelatropic reaction still and plant liquid, be adjusted to pH=6 with mineral acid or mineral alkali dilute solution, saturation steam with 0.8MPa is warming up to 70 ℃ with the solution in the chelatropic reaction still, stirring reaction 0.8h, after reaction is finished, obtain 83.6kg chelatropic reaction liquid;
3. chelatropic reaction liquid is changed in the chelating dashpot, keep pH=6, obtain 84.2kg chelating product behind 70 ℃ of lower insulation 35min;
4. 170.7kg urea, 243.2kg monoammonium phosphate, 222.5kg Repone K and 51.7kg kaolin are joined in the mixing machine and mix, through belt conveyor mixed 688.2kg inorganic fertilizer material is evenly put in the propylhomoserin tablets press;
5. in tablets press by ammonia pipe and acid tube respectively the dilute sulphuric acid of 23.6kg ammonia and 31.5kg 50% is passed into inorganic fertilizer material bed in, then with 84.2kg chelating product through high-pressure fog be injected to inorganic fertilizer material bed in, mix rear granulation;
6. after granulation is finished, dry, screening, surface treatment, obtain 773.8kg organic chelate mould assembly composite fertilizer.
The production method of a kind of composite fertilizer of the present invention, the corruption of preparation is planted and is contained a large amount of Sodium salts humic acidss and potassium humate etc. in the liquid take the stem or leaf of cattail and agricultural crop straw as raw material, can be used as organic sequestering agent with in trace element chelated, as the nutritive substance of plant.Simultaneously, but corruption plant in the liquid humic acids also the heavy metal in the chelating soil generate precipitation, suppress plant to the absorption of heavy metal ion.In addition, because the rotten stem or leaf of cattail that contains in the liquid after a large amount of pulverizing and the organic fibre component of agricultural crop straw of planting, therefore a large amount of organic matters are contained in the organic chelate mould assembly composite fertilizer of final preparation, use the rear organic content in the soil that increased, can alleviate the biological effectiveness of heavy metal, the heavy metal in the soil is had preferably absorption and complex ability.
The production method of a kind of composite fertilizer of the present invention is produced the combination of compound manure operation with chelating operation and the direct granulation of propylhomoserin method of middle trace element, the sequestering power of the organic chelate mould assembly composite fertilizer centering trace element that this technique finally makes is strong, directly granulation behind the chelating, do not need the operations such as later stage pulverizing, simplified technical process, and added the corruption of making as fermenting raw materials take the stem or leaf of cattail and agricultural crop straw and planted the liquid composition, make organic chelate mould assembly composite fertilizer on former promising crop provides the basis of nutritive substance, can suppress plant to the absorption of the heavy metal in the soil, improve soil property, more be beneficial to the absorption of Plant To Nutrient material.
Utilize the organic chelate mould assembly composite fertilizer of technique preparation of the present invention, contain the middle trace element of 0.1-3%, amount of application is little, and stability is high, and the plant absorbing rate is high.
Embodiment
The production method of a kind of composite fertilizer of the present invention, its production stage is:
1. after the stem or leaf of cattail and agricultural crop straw being cleaned respectively, be crushed to the 20-60 order, mix by weight 2-3:1, then add composite bacteria liquid and concentration and be 15% sodium hydrogen carbonate solution, stir 2h after, sealing, then 60-80 ℃ of lower heat-preservation fermentation 5 days add 15% potassium hydroxide solution in the liquid that has fermented to pH=7-8, obtains corruption and plant liquid, wherein, the weight ratio of the mixture of the stem or leaf of cattail and agricultural crop straw, composite bacteria liquid, 15% sodium hydrogen carbonate solution is 1:0.2-0.3:0.05-0.1;
2. the inorganic salt with antioxidant, middle trace element join in the chelatropic reaction still, then add corruption in the chelatropic reaction still and plant liquid, be adjusted to pH=5-7 with mineral acid or mineral alkali dilute solution, saturation steam with 0.6-0.9MPa is warming up to 60-80 ℃ with the solution in the chelatropic reaction still, stirring reaction 0.5-1.2h after reaction is finished, obtains chelatropic reaction liquid, the total content of middle trace element is 1:2-3 with rotten weight ratio of planting liquid, and oxidation inhibitor is 0.5-3:2-3 with rotten weight ratio of planting liquid;
3. chelatropic reaction liquid is changed in the chelating dashpot, keep pH=5-7, obtain the chelating product behind the 60-80 ℃ of lower insulation 30-40min;
4. nitrogenous fertilizer, phosphate fertilizer, potash fertilizer and filler kaolin are joined in the mixing machine and mix by weight 3.2-3.4:4.5-4.9:3.8-4.8:1, through belt conveyor mixed inorganic fertilizer material is evenly put in the propylhomoserin tablets press;
5. in tablets press by ammonia pipe and acid tube respectively the dilute sulphuric acid of ammonia and 50% is passed into inorganic fertilizer material bed in, then with the chelating product through high-pressure fog be injected to inorganic fertilizer material bed in, mix rear granulation, each composition weight proportioning is as follows: ammonia 3,50% dilute sulphuric acid 4, inorganic fertilizer material 82.5-92.4, chelating product 9.1-12.3;
6. after granulation is finished, dry, screening, surface treatment, obtain organic chelate mould assembly composite fertilizer.
The step 1. preparation method of described composite bacteria liquid is: the Bacillus subtilus that laboratory culture is good and saccharomycetic bacterial classification all access in the scale-up medium by the inoculum size of 4-8%, 30-40 ℃ of lower starvation stir culture 3 days, Bacillus subtilus reaches 4-6 hundred million/mL, yeast reaches after 2-4 hundred million/mL, obtains composite bacteria liquid;
The prescription of scale-up medium is: glucose 4.7g/kg, and peptone 6.2g/ kg, extractum carnis 2.1g/ kg, magnesium sulfate heptahydrate 0.4g/ kg, manganous sulfate 0.1g/ kg, sodium acetate trihydrate 4.2g/ kg, pH=6-7 adds water and supplies.
The composite bacteria liquid that obtains with Bacillus subtilus and yeast enlarged culturing can be converted into humic acids with the stem or leaf of cattail and anaerobic fermented crop grass, further adds alkali and is converted into humate, is used for the chelating of trace element as sequestrant.Bacillus subtilus and yeast bacterial classification are pressed known technology and are cultivated.
The oxidation inhibitor of step in 2. is 1:1 with rotten preferred mass ratio of planting liquid.This preferred mass ratio can reach best chelating effect.
Step 2. described middle trace element and element wt proportioning is: Ca 9-10, Mg 1.4-3, Zn 2.3-3.6, Fe 1.3-2.1, Mn 0.6-1, Cu 0.7-0.9, the inorganic salt of described middle trace element are any in vitriol, muriate, the carbonate.
The weight proportion of middle trace element can promote plant absorbing nitrogenous fertilizer, phosphate fertilizer and potash fertilizer preferably, meets the demand that plant nutrient substance absorbs.
Step 2. described oxidation inhibitor is in reduced iron powder, xitix, citric acid, oxysuccinic acid, the fumaric acid any.Selected oxidation inhibitor can make organic chelate mould assembly fertilizer not oxidation by air in the process of use procedure or prolonged preservation of final production to greatest extent.
Step 1. described agricultural crop straw can be the stalk of any one farm crop in wheat, paddy rice, corn, the Chinese sorghum.Selected agricultural crop straw plants the corruption of preparation to contain a large amount of organic matters in the liquid, is beneficial to suppress plant to the absorption of heavy metal in soil.
The nitrogenous fertilizer of step described in 4. is urea, and phosphate fertilizer is monoammonium phosphate or diammonium phosphate, and potash fertilizer is vitriolate of tartar or Repone K.Behind the chelating product mixing granulation of selected nitrogenous fertilizer, phosphate fertilizer and potash fertilizer and middle trace element, can reach optimum assimilation effect.
The production method of a kind of composite fertilizer of the present invention can have following specific embodiment:
The concrete production stage of embodiment one is as follows:
1. after the 6.7kg stem or leaf of cattail and 3.3kg wheat stalk being cleaned respectively, be crushed to 20 orders, adding 2kg composite bacteria liquid and 0.5kg concentration are 15% sodium hydrogen carbonate solution after mixing, after stirring 2h, sealing, then 60 ℃ of lower heat-preservation fermentations 5 days add 15% potassium hydroxide solution in the liquid that has fermented to pH=7, obtain the 14.6kg corruption and plant liquid;
The preparation method of composite bacteria liquid is: with Bacillus subtilus and saccharomycetic bacterial classification all by in 4% the inoculum size access scale-up medium, 30 ℃ of lower starvation stir culture 3 days, Bacillus subtilus reaches 400,000,000/mL, yeast reaches after 200,000,000/mL, obtains composite bacteria liquid;
The prescription of scale-up medium is: glucose 9.4g, and peptone 12.4g, extractum carnis 4.2g, magnesium sulfate heptahydrate 0.8g, manganous sulfate 0.2g, sodium acetate trihydrate 8.4g, pH=6 adds water to 2kg;
2. 3.7kg reduced iron powder, 10.7kg calcium carbonate, 3.3kg sal epsom, 2.3kg zinc chloride, 1.7kg ferrous sulfate, 1.0kg Manganous chloride tetrahydrate, 0.7kg cupric chloride are joined in the chelatropic reaction still, then add the 14.6kg corruption in the chelatropic reaction still and plant liquid, be adjusted to pH=5 with mineral acid or mineral alkali dilute solution, saturation steam with 0.6MPa is warming up to 60 ℃ with the solution in the chelatropic reaction still, stirring reaction 0.5h, after reaction is finished, obtain 38.5kg chelatropic reaction liquid;
3. chelatropic reaction liquid is changed in the chelating dashpot, keep pH=5, obtain 38.6kg chelating product behind 60 ℃ of lower insulation 30min;
4. 89.6kg urea, 126kg monoammonium phosphate, 106.4kg vitriolate of tartar and 28kg kaolin are joined in the mixing machine and mix, through belt conveyor mixed 350kg inorganic fertilizer material is evenly put in the propylhomoserin tablets press;
5. in tablets press by ammonia pipe and acid tube respectively the dilute sulphuric acid of 12.7kg ammonia and 17kg 50% is passed into inorganic fertilizer material bed in, then with 38.6kg chelating product through high-pressure fog be injected to inorganic fertilizer material bed in, mix rear granulation;
6. after granulation is finished, dry, screening, surface treatment, obtain 378.6kg organic chelate mould assembly composite fertilizer.
The concrete production stage of embodiment two is as follows:
1. after the 7.5kg stem or leaf of cattail and 2.5kg maize straw being cleaned respectively, be crushed to 60 orders, adding 3kg composite bacteria liquid and 1kg concentration are 15% sodium hydrogen carbonate solution after mixing, after stirring 2h, sealing, then 80 ℃ of lower heat-preservation fermentations 5 days add 15% potassium hydroxide solution in the liquid that has fermented to pH=8, obtain the 15.9kg corruption and plant liquid;
The preparation method of composite bacteria liquid is: with Bacillus subtilus and saccharomycetic bacterial classification all by in 8% the inoculum size access scale-up medium, 40 ℃ of lower starvation stir culture 3 days, Bacillus subtilus reaches 600,000,000/mL, yeast reaches after 400,000,000/mL, obtains composite bacteria liquid;
The prescription of scale-up medium is: glucose 14.1g, and peptone 18.6g, extractum carnis 6.3g, magnesium sulfate heptahydrate 1.2g, manganous sulfate 0.3g, sodium acetate trihydrate 12.6g, pH=7 adds water to 3kg;
2. 15.9kg xitix, 11kg calcium chloride, 3.1kg magnesium chloride, 2.3kg zinc sulfate, 1.8kg iron protochloride, 0.7kg manganous sulfate, 0.5kg cupric chloride are joined in the chelatropic reaction still, then add the 15.9kg corruption in the chelatropic reaction still and plant liquid, be adjusted to pH=7 with mineral acid or mineral alkali dilute solution, saturation steam with 0.9MPa is warming up to 80 ℃ with the solution in the chelatropic reaction still, stirring reaction 1.2h, after reaction is finished, obtain 51.2kg chelatropic reaction liquid;
3. chelatropic reaction liquid is changed in the chelating dashpot, keep pH=7, obtain 52.1kg chelating product behind 80 ℃ of lower insulation 40min;
4. 94.5kg urea, 136.2kg diammonium phosphate, 133.5kg Repone K and 27.8kg kaolin are joined in the mixing machine and mix, through belt conveyor mixed 392.2kg inorganic fertilizer material is evenly put in the propylhomoserin tablets press;
5. in tablets press by ammonia pipe and acid tube respectively the dilute sulphuric acid of 4.1kg ammonia and 5.7kg 50% is passed into inorganic fertilizer material bed in, then with 52.1kg chelating product through high-pressure fog be injected to inorganic fertilizer material bed in, mix rear granulation;
6. after granulation is finished, dry, screening, surface treatment, obtain 420.2kg organic chelate mould assembly composite fertilizer.
The concrete production stage of embodiment three is as follows:
1. after the 15kg stem or leaf of cattail and 6kg rice straw being cleaned respectively, be crushed to 40 orders, adding 5.3kg composite bacteria liquid and 1.7kg concentration are 15% sodium hydrogen carbonate solution after mixing, after stirring 2h, sealing, then 70 ℃ of lower heat-preservation fermentations 5 days add 15% potassium hydroxide solution in the liquid that has fermented to pH=7.5, obtain the 28.3kg corruption and plant liquid;
The preparation method of composite bacteria liquid is: with Bacillus subtilus and saccharomycetic bacterial classification all by in 6% the inoculum size access scale-up medium, 35 ℃ of lower starvation stir culture 3 days, Bacillus subtilus reaches 500,000,000/mL, yeast reaches after 300,000,000/mL, obtains composite bacteria liquid;
The prescription of scale-up medium is: glucose 24.9g, and peptone 32.9g, extractum carnis 11.1g, magnesium sulfate heptahydrate 2.1g, manganous sulfate 0.5g, sodium acetate trihydrate 22.3g, pH=6.5 adds water to 5.3kg;
2. 19.8kg citric acid, 20.5kg calcium sulfate, 4.4kg magnesiumcarbonate, 4kg zinc chloride, 3.6kg iron protochloride, 1.7kg Manganous chloride tetrahydrate, 1.26kg copper sulfate are joined in the chelatropic reaction still, then add the 28.3kg corruption in the chelatropic reaction still and plant liquid, be adjusted to pH=6 with mineral acid or mineral alkali dilute solution, saturation steam with 0.8MPa is warming up to 70 ℃ with the solution in the chelatropic reaction still, stirring reaction 0.8h, after reaction is finished, obtain 83.6kg chelatropic reaction liquid;
3. chelatropic reaction liquid is changed in the chelating dashpot, keep pH=6, obtain 84.2kg chelating product behind 70 ℃ of lower insulation 35min;
4. 170.7kg urea, 243.2kg monoammonium phosphate, 222.5kg Repone K and 51.7kg kaolin are joined in the mixing machine and mix, through belt conveyor mixed 688.2kg inorganic fertilizer material is evenly put in the propylhomoserin tablets press;
5. in tablets press by ammonia pipe and acid tube respectively the dilute sulphuric acid of 23.6kg ammonia and 31.5kg 50% is passed into inorganic fertilizer material bed in, then with 84.2kg chelating product through high-pressure fog be injected to inorganic fertilizer material bed in, mix rear granulation;
6. after granulation is finished, dry, screening, surface treatment, obtain 743.8kg organic chelate mould assembly composite fertilizer.
The concrete production stage of embodiment four is as follows:
1. after the 9kg stem or leaf of cattail and 3kg broomcorn straw being cleaned respectively, be crushed to 50 orders, adding 2.4kg composite bacteria liquid and 1.2kg concentration are 15% sodium hydrogen carbonate solution after mixing, after stirring 2h, sealing, then 60 ℃ of lower heat-preservation fermentations 5 days add 15% potassium hydroxide solution in the liquid that has fermented to pH=8, obtain the 16.2kg corruption and plant liquid;
The preparation method of composite bacteria liquid is: with Bacillus subtilus and saccharomycetic bacterial classification all by in 5% the inoculum size access scale-up medium, 35 ℃ of lower starvation stir culture 3 days, Bacillus subtilus reaches 600,000,000/mL, yeast reaches after 300,000,000/mL, obtains composite bacteria liquid;
The prescription of scale-up medium is: glucose 11.3g, and peptone 14.9g, extractum carnis 5g, magnesium sulfate heptahydrate 1g, manganous sulfate 0.2g, sodium acetate trihydrate 10.1g, pH=6.5 adds water to 2.4kg;
2. 2.7kg fumaric acid, 13.8kg calcium sulfate, 5.4kg magnesium chloride, 2.2kg zinc chloride, 2.6kg ferrous sulfate, 0.9kg Manganous chloride tetrahydrate, 1kg copper sulfate are joined in the chelatropic reaction still, then add the 16.2kg corruption in the chelatropic reaction still and plant liquid, be adjusted to pH=6 with mineral acid or mineral alkali dilute solution, saturation steam with 0.9MPa is warming up to 70 ℃ with the solution in the chelatropic reaction still, stirring reaction 1h, after reaction is finished, obtain 44.8kg chelatropic reaction liquid;
3. chelatropic reaction liquid is changed in the chelating dashpot, keep pH=6, obtain 45 kg chelating products behind 70 ℃ of lower insulation 35min;
4. 113.3kg urea, 173.6kg monoammonium phosphate, 134.6kg Repone K and 35.4kg kaolin are joined in the mixing machine and mix, through belt conveyor mixed 456.9kg inorganic fertilizer material is evenly put in the propylhomoserin tablets press;
5. in tablets press by ammonia pipe and acid tube respectively the dilute sulphuric acid of 14.8kg ammonia and 19.8kg 50% is passed into inorganic fertilizer material bed in, then with 45kg chelating product through high-pressure fog be injected to inorganic fertilizer material bed in, mix rear granulation;
6. after granulation is finished, dry, screening, surface treatment, obtain 481.9kg organic chelate mould assembly composite fertilizer.
Claims (8)
1. the production method of a composite fertilizer, it is characterized in that: its production stage is:
1. after the stem or leaf of cattail and agricultural crop straw being cleaned respectively, be crushed to the 20-60 order, mix by weight 2-3:1, then add composite bacteria liquid and concentration and be 15% sodium hydrogen carbonate solution, stir 2h after, sealing, then 60-80 ℃ of lower heat-preservation fermentation 5 days add 15% potassium hydroxide solution in the liquid that has fermented to pH=7-8, obtains corruption and plant liquid, wherein, the weight ratio of the mixture of the stem or leaf of cattail and agricultural crop straw, composite bacteria liquid, 15% sodium hydrogen carbonate solution is 1:0.2-0.3:0.05-0.1;
2. the inorganic salt with antioxidant, middle trace element join in the chelatropic reaction still, then add corruption in the chelatropic reaction still and plant liquid, be adjusted to pH=5-7 with mineral acid or mineral alkali dilute solution, saturation steam with 0.6-0.9MPa is warming up to 60-80 ℃ with the solution in the chelatropic reaction still, stirring reaction 0.5-1.2h after reaction is finished, obtains chelatropic reaction liquid, the total content of middle trace element is 1:2-3 with rotten weight ratio of planting liquid, and oxidation inhibitor is 0.5-3:2-3 with rotten weight ratio of planting liquid;
3. chelatropic reaction liquid is changed in the chelating dashpot, keep pH=5-7, obtain the chelating product behind the 60-80 ℃ of lower insulation 30-40min;
4. nitrogenous fertilizer, phosphate fertilizer, potash fertilizer and filler kaolin are joined in the mixing machine and mix by weight 3.2-3.4:4.5-4.9:3.8-4.8:1, through belt conveyor mixed inorganic fertilizer material is evenly put in the propylhomoserin tablets press;
5. in tablets press by ammonia pipe and acid tube respectively the dilute sulphuric acid of ammonia and 50% is passed into inorganic fertilizer material bed in, then with the chelating product through high-pressure fog be injected to inorganic fertilizer material bed in, mix rear granulation, each composition weight proportioning is as follows: ammonia 3,50% dilute sulphuric acid 4, inorganic fertilizer material 82.5-92.4, chelating product 9.1-12.3;
6. after granulation is finished, dry, screening, surface treatment, obtain composite fertilizer.
2. the production method of a kind of composite fertilizer according to claim 1, it is characterized in that: the step 1. preparation method of described composite bacteria liquid is: the Bacillus subtilus that laboratory culture is good and saccharomycetic bacterial classification all access in the scale-up medium by the inoculum size of 4-8%, 30-40 ℃ of lower starvation stir culture 3 days, Bacillus subtilus reaches 4-6 hundred million/mL, yeast reaches after 2-4 hundred million/mL, obtains composite bacteria liquid;
The prescription of scale-up medium is: glucose 4.7g/kg, and peptone 6.2g/ kg, extractum carnis 2.1g/ kg, magnesium sulfate heptahydrate 0.4g/ kg, manganous sulfate 0.1g/ kg, sodium acetate trihydrate 4.2g/ kg, pH=6-7 adds water and supplies.
3. the production method of a kind of composite fertilizer according to claim 1 is characterized in that: the oxidation inhibitor of step in 2. is 1:1 with rotten mass ratio of planting liquid.
4. the production method of a kind of composite fertilizer according to claim 1, it is characterized in that: step 2. described middle trace element and element wt proportioning is: Ca 9-10, Mg 1.4-3, Zn 2.3-3.6, Fe 1.3-2.1, Mn 0.6-1, Cu 0.7-0.9, the inorganic salt of described middle trace element are any in vitriol, muriate, the carbonate.
5. the production method of a kind of composite fertilizer according to claim 1 is characterized in that: step 2. described oxidation inhibitor is in reduced iron powder, xitix, citric acid, oxysuccinic acid, the fumaric acid any.
6. the production method of a kind of composite fertilizer according to claim 1, it is characterized in that: step 1. described agricultural crop straw can be the stalk of any one farm crop in wheat, paddy rice, corn, the Chinese sorghum.
7. the production method of a kind of composite fertilizer according to claim 1 is characterized in that: the nitrogenous fertilizer of step described in 4. is urea, and phosphate fertilizer is monoammonium phosphate or diammonium phosphate, and potash fertilizer is vitriolate of tartar or Repone K.
8. the production method of a kind of composite fertilizer according to claim 1, it is characterized in that: concrete production stage is as follows:
1. after the 15kg stem or leaf of cattail and 6kg rice straw being cleaned respectively, be crushed to 40 orders, adding 5.3kg composite bacteria liquid and 1.7kg concentration are 15% sodium hydrogen carbonate solution after mixing, after stirring 2h, sealing, then 70 ℃ of lower heat-preservation fermentations 5 days add 15% potassium hydroxide solution in the liquid that has fermented to pH=7.5, obtain the 28.3kg corruption and plant liquid;
The preparation method of composite bacteria liquid is: with Bacillus subtilus and saccharomycetic bacterial classification all by in 6% the inoculum size access scale-up medium, 35 ℃ of lower starvation stir culture 3 days, Bacillus subtilus reaches 500,000,000/mL, yeast reaches after 300,000,000/mL, obtains composite bacteria liquid;
The prescription of scale-up medium is: glucose 24.9g, and peptone 32.9g, extractum carnis 11.1g, magnesium sulfate heptahydrate 2.1g, manganous sulfate 0.5g, sodium acetate trihydrate 22.3g, pH=6.5 adds water to 5.3kg;
2. 19.8kg citric acid, 20.5kg calcium sulfate, 4.4kg magnesiumcarbonate, 4kg zinc chloride, 3.6kg iron protochloride, 1.7kg Manganous chloride tetrahydrate, 1.26kg copper sulfate are joined in the chelatropic reaction still, then add the 28.3kg corruption in the chelatropic reaction still and plant liquid, be adjusted to pH=6 with mineral acid or mineral alkali dilute solution, saturation steam with 0.8MPa is warming up to 70 ℃ with the solution in the chelatropic reaction still, stirring reaction 0.8h, after reaction is finished, obtain 83.6kg chelatropic reaction liquid;
3. chelatropic reaction liquid is changed in the chelating dashpot, keep pH=6, obtain 84.2kg chelating product behind 70 ℃ of lower insulation 35min;
4. 170.7kg urea, 243.2kg monoammonium phosphate, 222.5kg Repone K and 51.7kg kaolin are joined in the mixing machine and mix, through belt conveyor mixed 688.2kg inorganic fertilizer material is evenly put in the propylhomoserin tablets press;
5. in tablets press by ammonia pipe and acid tube respectively the dilute sulphuric acid of 23.6kg ammonia and 31.5kg 50% is passed into inorganic fertilizer material bed in, then with 84.2kg chelating product through high-pressure fog be injected to inorganic fertilizer material bed in, mix rear granulation;
6. after granulation is finished, dry, screening, surface treatment, obtain 773.8kg organic chelate mould assembly composite fertilizer.
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| PCT/CN2013/089045 WO2014106424A1 (en) | 2013-01-05 | 2013-12-11 | Method for producing compound fertilizer |
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| CN103011941B (en) | 2014-03-05 |
| WO2014106424A1 (en) | 2014-07-10 |
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