CN1191213C - Process for preparing orgnaic fertilizer mixture from molasses alcohol dregs for sugarcane - Google Patents
Process for preparing orgnaic fertilizer mixture from molasses alcohol dregs for sugarcane Download PDFInfo
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- CN1191213C CN1191213C CNB011382813A CN01138281A CN1191213C CN 1191213 C CN1191213 C CN 1191213C CN B011382813 A CNB011382813 A CN B011382813A CN 01138281 A CN01138281 A CN 01138281A CN 1191213 C CN1191213 C CN 1191213C
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A40/00—Adaptation technologies in agriculture, forestry, livestock or agroalimentary production
- Y02A40/10—Adaptation technologies in agriculture, forestry, livestock or agroalimentary production in agriculture
- Y02A40/20—Fertilizers of biological origin, e.g. guano or fertilizers made from animal corpses
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Abstract
The present invention relates to a method for producing organic composite fertilizers special for sugarcane. The fertilizers are produced by using sugarcane molasses stillage. Firstly, the molasses stillage generated in the distillation beer still of molasses alcohol factories is sent into a storage tank; the molasses stillage is neutralized by sodium hydroxide in a neutralization device; the concentration is realized by a multiple-effect evaporator to form a concentration liquid that the total solid content is 50 to 75%; after curing reaction, spraying and drying, the concentrated molasses stillage and single fertilizers such as nitrogen fertilizers, phosphorus fertilizers and potassium fertilizers that the total nutrients are more than 20% are mixed; the mixed components are put into a granulation machine by a feeder for granulation; thus, the commodity type composite fertilizer finished products are obtained after coating, cooling and packaging. The method has the advantages of simple technology and obvious economic benefit and can realize the zero discharge of the molasses alcohol waste liquids.
Description
Technical field
The present invention relates to a kind of is the method for main material production sugarcane mixed organic fertilizer specially suitable with molasses-spirit lees (alcohol slops).
Background technology
Molasses-spirit lees is the high-enriched organics of a kind of chocolate, band acid (pH:4～5), the poor oxygen consumption organic 0.7～1.0t that just discharges of every production 1t alcohol, as directly entering natural water, will cause serious environmental pollution, ecological damage, so must administer.In addition, be rich in organic nutrient in the molasses-spirit lees,, also have plurality of inorganic salt and trace elements such as a large amount of phosphorus, potassium, calcium, magnesium, zinc, can be used as feed or fertilizer as carbohydrate, protein, VITAMIN, vitamin H.The poor improvement or the utilization of alcohol of open source literature report has following several method both at home and abroad at present: 1, agricultural filling method; 2, oxidation pond process; 3, fermented feed yeast method; 4, anaerobically fermenting biogas method.This several method exist respectively take up an area of many, seasonal strong, investment is big, working cost is high and processing is not thorough etc., and shortcoming makes enterprise be difficult to bear.So what the improvement of molasses alcohol waste liquid lacked at present is a kind of operational path that has environment, society, economic benefit concurrently.Chinese patent also disclosed the improvement method of some molasses-spirit lees in recent years, but the method that has is complicated, the processing cost height, for example, the employing that has adds the lime neutralization earlier, through concentrating, spraying drying obtains dry powder then, the shortcoming of this method is to use milk of lime neutral alcohol slops when the evaporation heating, is easy to produce calcium salt incrustation in the heating tube of well heater and evaporating pot, directly influences heating property usefulness; In order to reduce incrustation, must increase settling apparatus and filtration unit, so promptly increased the investment of equipment factory building, produced reluctant secondary pollution again.And because the sugar content height of molasses-spirit lees easily stops up shower nozzle during spraying drying, dry back dry powder is the suction caking that gets damp easily, and the fertilizer nutriment in a fertilizer fails to make full use of; Therefore, the dry powder processing of many factories alcohol expense liquid has only been kept the 1-2 evaporating pot and has just been stopped up by calcium deposition, shower nozzle cisco unity malfunction and being forced to stop production.
Technology contents
The purpose of this invention is to provide and a kind ofly can overcome the deficiencies in the prior art part, have that method is simple, energy consumption is low, a good product quality, molasses-spirit lees improvement method free from environmental pollution.
The technical scheme that the present invention solves is molasses-spirit lees to be carried out agricultural resource type treating realize as the main raw material of producing the sugarcane mixed organic fertilizer specially suitable.Concrete grammar is that the useless vinasse of the distillation wine with dregs tower generation of alcohol factory are delivered to tank, neutralize with sodium hydroxide earlier at neutralizer, making the solution pH value is 6-7, after passing to the well heater preheating, through five concentrated solutions of imitating the multiple-effect evaporator simmer down to total solid 50-70% of six operations, added the milk of lime slaking reaction 1-5 hour through being evacuated to reactor again, spray-dried then, mix with nitrogen, phosphorus, potassium monomer fertilizer etc., granulation, and add porousness sorbent material and dispersion agent, fertilizer synergist complex compound, obtain the fertile finished product of commodity-type compound again behind coating, the cooling packing.
The condition of milk of lime sex change slaking reaction recited above is the 1-5% that milk of lime accounts for the gross weight of concentrated solution; The porousness sorbent material that the system particle adds when fertile is the bagasse chaff, and addition is 3-3.5%; Dispersion agent is flyash and phosphorus ammonia material fertilizer, and addition is 30-40%; The fertilizer synergist complex compound is B, Zn, Mo, and addition is 0.5-2%; The material that fertilizer coating uses is fused(calcium magnesium)phosphate or flyash, and proportion is the 3-5% of compound fertilizer.
Principle of the present invention is: contain abundant organic nutrient during the alcohol of high density is poor, as carbohydrate, protein, VITAMIN, vitamin H, also have plurality of inorganic salt and trace elements such as a large amount of phosphorus, potassium, calcium, magnesium, zinc, wherein phosphorus, potassium especially abundant (for details see attached table 1).These compositions mainly are to absorb in soil in the sugarcane production process, are present in the waste molasses through the cane sugar manufacture process, finally eject from slops after alcohol is produced in fermentation again.On the other hand, detection to sugarcane district soil confirms, sugarcane district soil soil fertility is on a declining curve, particularly especially phosphorus, potassium content fall sharply for the soil organism and quick-acting nutrient, reached the degree that lacks or very lack, be processed into the sugarcane mixed organic fertilizer specially suitable so will be rich in the molasses-spirit lees of phosphorus potash fertilizer,, increase sugarcane yield and have very good effect improving the fertility of sugarcane field.
Subordinate list 1:
| Project | f pH | Solid substance % | Ash % | Organism % | N ％ | P 2O 3 ％ | K 2O ％ | CaO ％ | MgO ％ | Sulphur % | Viscosity |
| Content | 6.5 | ＞65 | 12 | 48 | 0.6～1.1 | 0.14 | 2.76 | 1.67 | 1.28 | 0.2～0.3 | 2 |
Description of drawings
Fig. 1 is a process flow sheet of the present invention.
As shown in the figure, production technology of the present invention mainly contained for two steps: concentration technology process and fertilize preparation craft process.
The main process of concentration technology: a. alcohol grain is acid, and pH=3.8～4.2 are so need just can concentrate after the neutralisation treatment. In and the present open source literature report normal operation milk of lime of alcohol grain, but the alcohol effluent that uses lime slurry neutralization is easy to produce calcium salt incrustation in the heating tube of heater and evaporator when the evaporation heating, directly affects heating property usefulness; In order to reduce incrustation, must increase settling apparatus and filter, so namely increased the investment of equipment factory building, produced again reluctant secondary pollution. In order to reduce calcium salt incrustation, improve heat efficiency, secondary pollution is avoided in the investment of minimizing equipment, factory building, and NaOH liquid caustic soda neutralisation is adopted in the alcohol grain neutralization of this method. B. evaporate heating system: neutralizer adds the heating of thermal recovery level Four. The evaporation and concentration scheme is six tanks, five effect pressure vacuum evaporation and concentration schemes, extracts each effect evaporation juice vapour of front for heating. This method is used the solidifying water isopiestic pressure drainage system of a cover vapour, and this system makes the solidifying water conservancy of evaporator vapour automatically be discharged in the equipressure tank that pressure equates with it with liquid level difference. C. vacuum system: the evaporation and concentration tank is kept vacuum with Water Jet Condenser.
The main process of fertilize preparation craft;
Concentrate is more than the total solid 50-70%, be evacuated to reactor calcium hydroxide slaking reaction through screw pump from basin, deliver to the pump machine and enter three fluid spray towers after the heater heating and carry out drying, material draws semi-finished product dry powder after the cat head cyclone separator enters Material collecting box for harvesting. Dry powder mixes with N, P, K monomer fertilizer and conditioner etc., and the mechanical agitation material is inputted controlled helicla flute through special funnel, evenly enters granulator, and manufactured goods fill bag after the cooler cooling and obtain finished product through with calcium magnesium phosphate or calcium carbonate coating.
The present invention compared with prior art, its substantive distinguishing features and significant progress are:
1, thoroughly solves the emission problem of molasses-spirit lees, can also produce commodity-type sugarcane mixed organic fertilizer specially suitable, create huge economic benefit, realize that three of " environmental protection, economy, society " are unified.
2, reduced investment, occupation of land are little, and the liquid caustic soda neutralisation is adopted in the poor neutralization of present method alcohol, both can reduce producing the difficult calcium salt incrustation that cleans in the heating tube of well heater and evaporating pot, can improve heat efficiency again, and secondary pollution is avoided in the investment of minimizing equipment, factory building.
3, use the calcium hydroxide slaking reaction, reduced the high sugar degree of molasses-spirit lees, be difficult for stopping up shower nozzle during spraying drying, dry powder is difficult for suction and gets damp, and it is effective to make particle fertilizer.
4, the guarantor is fertile long-acting, and present method is added porousness sorbent material and fertilizer synergist in the fertile workshop section of system particle, can make the particle fertilizer nutrient delay extended release and put, and plays and reduces the nutriment in a fertilizer loss, reduces the dispensing number of times, saves the labor force again.
5, less energy-consumption, present method adopts multiple-effect evaporation, takes out energy-conservation schemes such as juice vapour, isobaric draining, has greatly reduced energy consumption cost.
6, be rich in the granulating process of intention, present method technology is simple, save in the past the numerous and diverse technology that all needs high temperature drying before and after granulating, design the nutrient prescription and directly make granulated fertilizer, obtain the commodity finished product through coating, cooling, dress bag with vinasse concentrated dry powder and nitrogen, phosphorus, potassium monomer fertilizer etc.
Embodiment
Embodiment one:
Grain distillery's molasses-spirit lees is 5-7 through making its PH with the neutralization of sodium hydroxide liquid caustic soda, and neutralizing device adopts two of ￠ 450mm neutralization reaction injectors, enters five after the preheating and imitates evaporating pot, and evaporating pot is equipped with four 700m
2Evaporating pot, two 850m
2Evaporating pot.Well heater is equipped with five 60m
2Well heater, the level Four heating that is used for the poor neutralizer of alcohol is used.After being concentrated into total solid 50-70%; enter retort; add the milk of lime slaking reaction; add-on is the 1-5% of concentrated solution; and then be pressed into three fluid spray drying towers with spiral pump; the material wink-dry becomes powder; the vinasse powder that comes out through the cat head cyclonic separator; deliver to spices device and inorganic total nutrient and reach N more than 20%; P; K monomer fertilizer; porousness sorbent material bagasse chaff 3%; sodium tetraborate 0.3%; zinc sulfate 0.5%; ammonium molybdate 0.2% flyash and phosphorus ammonia material fertilizer, addition is 30%, mixes; evenly enter nodulizer through feeder, the product that comes out just becomes finished product after with the cooling of 3% fused(calcium magnesium)phosphate coating.
Embodiment two:
Grain distillery's molasses-spirit lees is 5-7 through making its PH with the neutralization of sodium hydroxide liquid caustic soda, and neutralizing device adopts two of ￠ 450mm neutralization reaction injectors, enters five after the preheating and imitates evaporating pot, and evaporating pot is equipped with four 700m
2Evaporating pot, two 850m
2Evaporating pot.Well heater is equipped with five 60m
2Well heater, the level Four heating that is used for the poor neutralizer of alcohol is used.After being concentrated into total solid 50-70%; enter retort; add the milk of lime slaking reaction; add-on is the 1-5% of concentrated solution; and then be pressed into three fluid spray drying towers with spiral pump; the material wink-dry becomes powder; the vinasse powder that comes out through the cat head cyclonic separator; deliver to spices device and inorganic total nutrient and reach N more than 20%; P; K monomer fertilizer; porousness sorbent material bagasse chaff 4%; sodium tetraborate 0.2%; zinc sulfate 0.6%; ammonium molybdate 0.3% flyash and phosphorus ammonia material fertilizer, addition is 30%, mixes; evenly enter nodulizer through feeder, the product that comes out just becomes finished product after with the cooling of 5% fused(calcium magnesium)phosphate coating.
Application Example
Porousness sorbent material mixed organic manure of the present invention is used for the sugarcane field fertilising, 20 kilograms every mu, with one on same two adjacent ground fertilise not, plot is executed common inorganic composite fertilizer in addition, result's mixed organic manure ratio of the present invention is the sugarcane production-increasing 30% of fertilise not, than the volume increase 10% of executing common inorganic composite fertilizer.
Claims (1)
1, a kind of method of utilizing molasses-spirit lees to produce the sugarcane mixed organic fertilizer specially suitable, it is characterized in that: the useless vinasse that the distillation wine with dregs tower of alcohol factory produces are delivered to tank, neutralize with sodium hydroxide earlier at neutralizer, making the solution pH value is 6-7, after passing to the well heater preheating, through five concentrated solutions of imitating the multiple-effect evaporator simmer down to total solid 50-70% of six operations, again through being evacuated to the 1-5% milk of lime of reactor adding by the gross weight of concentrated solution, slaking reaction 1-5 hour, spray-dried then, with nitrogen, phosphorus, potassium monomer fertilizer mixes, granulation, and the porousness sorbent material bagasse chaff of interpolation 3-3.5% and the dispersion agent flyash of 30-40%, phosphorus ammonia material fertilizer, the fertilizer synergist complex compound B of 0.5-2%, Zn, Mo, coating again, obtain the fertile finished product of commodity-type compound behind the cooling packing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB011382813A CN1191213C (en) | 2001-12-11 | 2001-12-11 | Process for preparing orgnaic fertilizer mixture from molasses alcohol dregs for sugarcane |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB011382813A CN1191213C (en) | 2001-12-11 | 2001-12-11 | Process for preparing orgnaic fertilizer mixture from molasses alcohol dregs for sugarcane |
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| CN1356295A CN1356295A (en) | 2002-07-03 |
| CN1191213C true CN1191213C (en) | 2005-03-02 |
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| CNB011382813A Expired - Fee Related CN1191213C (en) | 2001-12-11 | 2001-12-11 | Process for preparing orgnaic fertilizer mixture from molasses alcohol dregs for sugarcane |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN103183530A (en) * | 2013-03-12 | 2013-07-03 | 南宁市英德肥业有限责任公司 | Method for making compound fertilizer specially used in sugarcane by utilizing molasses fermentation liquid |
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| CN101462899B (en) * | 2008-11-14 | 2012-06-06 | 林晓山 | Technique for producing humic acid organic compound fertilizer from sugar refinery waste slag and wastewater |
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| CN102399097A (en) * | 2010-09-19 | 2012-04-04 | 张钦 | Method for producing organic-inorganic compound fertilizer from alcohol broth |
| CN102503594B (en) * | 2011-10-12 | 2013-10-16 | 马健 | Method for producing high-efficiency organic fertilizer by using wastewater from alcoholic fermentation |
| CN102586340A (en) * | 2012-02-11 | 2012-07-18 | 江门市杰士植物营养有限公司 | Preparation method of molasses for recycling |
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2001
- 2001-12-11 CN CNB011382813A patent/CN1191213C/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103183530A (en) * | 2013-03-12 | 2013-07-03 | 南宁市英德肥业有限责任公司 | Method for making compound fertilizer specially used in sugarcane by utilizing molasses fermentation liquid |
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| CN1356295A (en) | 2002-07-03 |
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Granted publication date: 20050302 Termination date: 20201211 |