CN102557789A - Method for producing compound fertilizer by taking fly ash as raw material - Google Patents
Method for producing compound fertilizer by taking fly ash as raw material Download PDFInfo
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- CN102557789A CN102557789A CN2010105991040A CN201010599104A CN102557789A CN 102557789 A CN102557789 A CN 102557789A CN 2010105991040 A CN2010105991040 A CN 2010105991040A CN 201010599104 A CN201010599104 A CN 201010599104A CN 102557789 A CN102557789 A CN 102557789A
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Abstract
The invention relates to a method for producing a compound fertilizer by taking fly ash as a raw material. The method comprises the following steps of: taking the fly ash as the main raw material and/or adding an inorganic readily available fertilizer, further fully utilizing N, P, K and trace elements in the fly ash, adding into other fertilizers, further adding humified organic slag, and performing fermentation or magnetization. The method disclosed by the invention has the advantages that the compound fertilizer has the performance of a biological fertilizer, and contains an inorganic potassium fertilizer and various trace elements as well as the ingredients of an organic fertilizer.
Description
Technical field:
The present invention relates to a kind of is the method for raw material production composite fertilizer with flyash.
Technical background:
Composite fertilizer is the general name that contains the fertilizer of two or more element in nitrogen, phosphorus, three kinds of nutritive elements of potassium.Advantages such as composite fertilizer has the nutrient content height, minor component is few and physical behavior is good for balance fertilizing, improve utilization rate of fertilizer, promote the stable high yield of crop that crucial effect is arranged.Along with the raising of grain yield, the phenomenon of soil nutritional deficiency shows, and the peasant begins to select for use more multi-component composite fertilizer now.
Composite fertilizer's customizations is a megatrend of composite fertilizer development: because crop is in different vegetative period, main organ of growing is different, such as at germination period; Mainly be the growth of rhizome, and mainly be the growth of cauline leaf vegetative period, the ripening stage then mainly is the growth of flowers and fruits seed; Different plant organs; Required main fertilizer also is different in growth course, and the peasant will select corresponding special-purpose fertile according to the different growing stages of crop when selecting composite fertilizer for use.Just run counter to crop if not special use and inhaled fertile rule, made the yield potential of crop can not get performance, caused some nutritive element waste simultaneously.Along with the development of agriculture prodn, the composite fertilizer of high-concentration long-actingization more and more receives peasant's welcome, and the application of this type fertilizer has reduced the fertilising consumption; Make things convenient for farming, remove the link of topdressing from, alleviated labor capacity; Improved utilization rate of fertilizer, the saving of labor, laborsaving, save time upgrading synergy.
Composite fertilizer's fertilizer efficiency is long, is fit to do base manure.A large amount of tests show, no matter be that binary should ternary is compound be all executed with base.This is because contain multiple nutrients such as nitrogen, phosphorus, potassium in the composite fertilizer, and crop is especially very responsive to phosphorus, potassium early stage, requires phosphorus, potash fertilizer will make base manure and early executes.Controlled-release compound fertilizer has adopted technologies such as dressing, granulation in process of production, and fertilizer efficiency is slowly steady, decomposes slowly than chemical fertilizer of simple substance, and leaching loss of nutrient is few, and utilization ratio is high, is suitable for doing base manure.But the element that plant needs is not a nitrogen, phosphorus, and potassium also needs elements such as calcium, magnesium.Composite fertilizer in the market just comprises large elements such as the required N of crop, P, K, and crop vegetative period necessary trace element be left in the basket for a long time, and the effect of trace element in the growth and development process of crop is absolutely necessary.
China is a big coal country, is the basic fuel of electrical production with coal.In recent years, the energy industry stable development of China, the power generation capacity annual growth is 7.3%; Developing rapidly of power industry, the rapid increase that has brought the flyash quantity discharged, the annual flyash total amount of being discharged of coal-fired thermal power factory increases year by year; Nineteen ninety-five, the flyash quantity discharged reached 1.25 hundred million tons; Be about 1.5 hundred million tons in 2000, will reach 200,000,000 tons, cause huge pressure for the development of the national economy and the ecotope of China by 2010.On the other hand; China is again a country that per capita resource reserve is limited, and the comprehensive utilization of flyash is turned waste into wealth, turned bane into boon; Become important techniques economic policy in China's economic construction; Be to solve China's electrical production environmental pollution, the important means of contradiction between the resource shortage also is one of task of solution that electrical production faces.Through exploitation, flyash is widely used in all departments such as building worker, building materials, water conservancy.
The seventies in 20th century, worldwide energy dilemma, the exhaustion of environmental pollution and mineral wealth etc. has excited the research and development of utilization of fly ash consumingly, repeatedly holds international flyash meeting, and deeply, application facet has also had significant progress day by day in research work.Flyash becomes noticeable aboundresources, cheap on the world market, and the emerging building materials raw material of bringing good to and remove all evil and the raw material of Chemicals receive people's favor.At present, the research work of flyash is mostly turned to applied research by theoretical investigation, particularly important resource utilization research and development utilize.The product that utilizes flyash production is in continuous increase, and technology is being brought in constant renewal in.Great variation has taken place for total utilization of PCA work both at home and abroad and past, mainly shows as: the guiding theory that flyash is administered has been the comprehensive regulation, recycling from the simple environment angle change in past; The approach of total utilization of PCA is with outside the application of aspects such as the roadbed in past, embankment, concrete admixture, soil transformation, develops into present in advanced approach that utilizes such as cement raw material, cement mixture, Large Hydro-Junction engineering, pump concrete, mass concrete goods, senior fillers.
The main oxides of power plants flyash consists of: SiO2, AL2O3, FeO, Fe2O3, CaO, TiO2, MgO, K2O, Na2O, SO3, MnO etc. also have P2O5 etc. in addition.Wherein silicon oxide, titanium oxide be from clay, the rock page or leaf; Red stone is mainly from pyrite; Natural manganese dioxide and quicklime are from its corresponding carbonate and vitriol.
Flyash is a kind of seemingly pozzolana mixed material that coal dust forms behind high-temp combustion.It is that the coal dust below 100 microns is worn into coal in the power station of coal combustion, sprays into burner hearth with preheated air and becomes the suspended state burning, produces to mix the high-temperature flue gas that a large amount of incombustible substance are arranged, and captures through particle collector and has just obtained flyash.The chemical constitution of flyash is similar with clay matter, and staple is silicon-dioxide, aluminium sesquioxide, red oxide of iron, quicklime and uncompleted burned carbon.At present, flyash mainly is used for producing pulverized fuel ash cement, flyash brick, fly ash silicate building block, powder ash air-entrained concrete and other material of construction, also can be used as soil improvement agent, reclaims industrial raw material and makes environmentally conscious materials.China's flyash contain Fe 1.90%～18.51%, Ca 0.30%～25.10%, K 0.22%～3.10%, Mg 0.05%～1.92%, Ti 0.40%～1.80%, P 0.00%～0.90% etc. can be used as the trace element source of composite fertilizer fully.
Summary of the invention
It is the method for raw material production composite fertilizer with flyash that the present invention provides a kind of.
Make full use of N, P, K and trace element in the flyash, it added in other fertilizer, add humified organic slag again, by fermentation or the magnetization form.
The concrete operations step is following
(1) a kind of active fly ash compound manure, main raw material is a flyash, and or add inorganic readily avaiable fertilizer, it is characterized in that adding again the humified organic slag of 5-15wt% and the active bacterial manure of 0.3-1.5wt% and an amount of water and form through fermentation;
(2) a kind of active fly ash composite potassium fertilizer, main raw material is a flyash, it is characterized in that adding the humified organic slag of 5-15wt% and the biological potassium fertilizer of 0.3-1.5wt% and an amount of water again and forms through fermentation;
(3) a kind of active fly ash resultant magnetization is fertile; Main raw material is urea, the phosphorus ammonium of flyash and former addition; The humified organic matter that it is characterized in that adding again 5-15wt% is looked into the active bacterial manure with 0.3-1.5wt%, and an amount of water forms through the fermentation back magnetization.
As stated, humified organic slag refers to furfural dregs and humified crop cauline leaf etc.
Aforesaid fermentation is meant fermentation in 20-50 ℃.Fermentation 10-48h.
As stated, the add-on of flyash is 40-94%, and other single fertilizer add-on is 0-50%.
As stated, single fertilizer refers to NPK etc.
The present invention is owing to mixed humified organic slag and active bacterial manure in flyash; During the fermentation; Organic like humic acid under the effect of active bacterium, the Decomposition reinforcement of the complex compound that element such as the N that exists in the flyash, P, K and trace element are formed.Make things convenient for the trace element in the flyash to be absorbed by crop.Therefore flyash is fully used.
Have following advantage and positively effect through analyzing and testing the present invention: one, this active powdered coal ash fertilizer not only has the performance of bio-feritlizer, and itself has closed inorganic potash fertilizer and various trace elements, and also contains organic fertilizer composition.Two, use flyash, turn waste into wealth environmental protection.
Embodiment
Embodiment 1
Take by weighing 40g flyash, 50g superphosphate of lime, the humified organic slag of 8.5g and the active bacterial manure of 1.5g add an amount of water and process a kind of active fly ash compound manure at 20 ℃ of bottom fermentation 20h.
Embodiment 2
Take by weighing 60g flyash, the 30g saleratus, the humified organic slag of 9.7g and the active bacterial manure of 0.3g add an amount of water and process a kind of active fly ash compound manure at 30 ℃ of bottom fermentation 30h.
Embodiment 3
Take by weighing 95g flyash, the humified organic slag of 4g and the biological potassium fertilizer of 1g add an amount of water and process a kind of active fly ash composite potassium fertilizer at 40 ℃ of bottom fermentation 40h.
Embodiment 4
Take by weighing 80g flyash, the humified organic slag of 8.5g and the biological potassium fertilizer of 1.5g add an amount of water and process a kind of active fly ash composite potassium fertilizer at 50 ℃ of fermentation 48h.
Embodiment 5
Take by weighing 40g flyash, 50g urea, the humified organic slag of 8.5%g and the active bacterial manure of 1.5g add an amount of water at 30 ℃ of fermentation 10h, and a kind of active fly ash resultant magnetization fertilizer is processed in magnetization then.
Embodiment 6
Take by weighing 60g flyash, 35g ammonium superphosphate, the humified organic slag of 4.5g and the active bacterial manure of 0.5g add an amount of water at 40 ℃ of bottom fermentation 20h, and a kind of active fly ash resultant magnetization fertilizer is processed in magnetization then.
Claims (5)
1. one kind is the method for raw material production composite fertilizer with flyash, is characterised in that to comprise the steps:
(1) a kind of active fly ash compound manure, main raw material is a flyash, and or add inorganic readily avaiable fertilizer, it is characterized in that adding again the humified organic slag of 5-15wt% and the active bacterial manure of 0.3-1.5wt% and an amount of water and form through fermentation;
(2) a kind of active fly ash composite potassium fertilizer, main raw material is a flyash, it is characterized in that adding the humified organic slag of 5-15wt% and the biological potassium fertilizer of 0.3-1.5wt% and an amount of water again and forms through fermentation;
(3) a kind of active fly ash resultant magnetization is fertile; Main raw material is urea, the phosphorus ammonium of flyash and former addition; The humified organic matter that it is characterized in that adding again 5-15wt% is looked into the active bacterial manure with 0.3-1.5wt%, and an amount of water forms through the fermentation back magnetization.
2. as claimed in claim 1 is the method for raw material production composite fertilizer with flyash, is characterised in that described humified organic slag is furfural dregs and humified crop cauline leaf.
3. as claimed in claim 1 is the method for raw material production composite fertilizer with flyash, is characterised in that described fermentation is fermentation in 20-50 ℃, fermentation 10-48h.
4. as claimed in claim 1 is the method for raw material production composite fertilizer with flyash, and the add-on that is characterised in that described flyash is 40-94%, and other single fertilizer add-on is 0-50%.
5. as claimed in claim 4 is the method for raw material production composite fertilizer with flyash, is characterised in that described single fertilizer is NPK.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010105991040A CN102557789A (en) | 2010-12-14 | 2010-12-14 | Method for producing compound fertilizer by taking fly ash as raw material |
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| Application Number | Priority Date | Filing Date | Title |
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| CN2010105991040A CN102557789A (en) | 2010-12-14 | 2010-12-14 | Method for producing compound fertilizer by taking fly ash as raw material |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109265285A (en) * | 2018-09-06 | 2019-01-25 | 范建国 | A kind of fly ash base sandy soil conditioner and preparation method thereof |
| CN114349573A (en) * | 2022-01-26 | 2022-04-15 | 黑龙江鑫福垚科技发展有限公司 | Multifunctional high-silicon fertilizer prepared from Baoqing water-containing fly ash and preparation method thereof |
| CN114365748A (en) * | 2022-01-26 | 2022-04-19 | 黑龙江鑫福垚科技发展有限公司 | Multifunctional liquid-state silico-calcium pesticide prepared from Baoqing water-containing fly ash and preparation method thereof |
-
2010
- 2010-12-14 CN CN2010105991040A patent/CN102557789A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109265285A (en) * | 2018-09-06 | 2019-01-25 | 范建国 | A kind of fly ash base sandy soil conditioner and preparation method thereof |
| CN114349573A (en) * | 2022-01-26 | 2022-04-15 | 黑龙江鑫福垚科技发展有限公司 | Multifunctional high-silicon fertilizer prepared from Baoqing water-containing fly ash and preparation method thereof |
| CN114365748A (en) * | 2022-01-26 | 2022-04-19 | 黑龙江鑫福垚科技发展有限公司 | Multifunctional liquid-state silico-calcium pesticide prepared from Baoqing water-containing fly ash and preparation method thereof |
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Application publication date: 20120711 |