CN102276300A - Full-value organic fertilizer for drop irrigation and preparation method thereof - Google Patents

Abstract

The invention provides a full-value organic fertilizer for drop irrigation and a preparation method thereof. The full-value organic fertilizer comprises the following raw materials in parts by weight: 65-75 parts of organic matter, 4-6 parts of sodium sulfite, 5-6 parts of sodium pyrosulfite, 9-12 parts of potassium oxide, 4-7 parts of nitric acid, 4-6 parts of phosphorus pentoxide, 13-17 parts of liquid ammonia and water. The preparation method comprises the steps of: putting the organic matter and water in a reactor in a proportion of 1:1, stirring, sequentially adding the sodium sulfite and the sodium pyrosulfite, reacting for 50-60 minutes at a temperature of 140-145 DEG C and a pressure of 0.4MPa, ending a sulfonation reaction, cooling to reach a temperature of 70-80 DEG C, adding the nitric acid for nitrosation reaction for 30-45 minutes, and discharging; placing reaction materials in a kneading machine after airing and drying, and distributing water with a ratio of material to water being 1:0.5; adding the phosphorus pentoxide for carrying out a kneading grafting reaction for 30-35 minutes; adding the potassium oxide and the liquid ammonia for carrying out a neutralization reaction, controlling a pH value to be 6.0-8.0 to obtain a paste solid; and drying with a drying line at a temperature of 70-150 DEG C for 10-15 minutes, crushing and disposing with a granulator to obtain a finished product, wherein the organic matter is obtained from the following steps: crushing weathered coal to 100-120 meshes, and carrying out winnowing and water sedimentation.

Description

A kind of full price fertilizer and preparation method who is used for drip irrigation

Technical field

The water-soluble fertilizer that the present invention relates to is the dedicated fertilizer of drip irrigation, and the effect of its full price fertilizer efficiency can offer and survey soil prescription and incorporate production of liquid manure and operation.

Background technology

Fertilizer refers to the n-p-k element that plant-growth is required, because containing the carboxylic hydroxy functional group has stronger ion-exchange capacity and ion adsorption capacity, strong water-soluble and property group with stronger micro-Portability, in agriculture production, brought into play drought resistance agent, growth regulator, pesticide slow-release synergistic agent, chemical element complexing agent and improve the soil, synergy chemical fertilizer, stimulating growth, enhancing are degeneration-resistant, the vital role of improving quality.

Literature search discloses: (1) number is the patent of CN200910130413.0, promptly " water soluble humic acid multi-element solid fertilizer and production method thereof " described fertilizer is mainly formulated by fulvo acid, water-soluble nitrogenous fertilizer, water soluble phosphorous fertilizer, water soluble potassic fertilizer, water-soluble complexing trace element, and the sequencing by Fe, Cu, Zn, B, Mo of the soluble salt of above-mentioned trace elements zn, B, Fe, Cu, Mo adds dissolving one by one, dehydrates and makes component E; Above component A, B, C, D, E mixed in proportion promptly obtain humic acid multi-element water-soluble solid fertilizer.(2) number be the patent of CN200810116508.2.Promptly ' organic fluid fertilizer and its production and application " contain nitrogenous fertilizer, phosphate fertilizer and the potash fertilizer of organism form, contain poly-aspartic-acid potassium and more than one micro-organic chelates simultaneously; Wherein, nitrogenous 10～20% in this organic fluid fertilizer respectively in N, P2O5 and K2O, phosphorous 0～10%, contain potassium 5～25%, organism 〉=300 grams per liter fluid fertilizer; And the content of described poly-aspartic-acid potassium is 600～1200 milligrams of/kilogram fluid fertilizer.(3) number be the patent of CN200810049643.X, promptly " a kind of ecological nitrogen fertilizer and preparation method thereof " is coating agent with the N,O-CMC, mix weathered coal, the peat composed of rotten mosses etc. be rich in humic-acid-type substances and in little fertile parcel small particle urea, its composition of raw materials ratio is: urea 550-750, the peat composed of rotten mosses (moisture 30%) 200-400, additive 80-200, in little fertile 30-90, chitin 1-5, promoter 0.5-0.20.(4) number be the patent of CN200910130413.0, promptly " water soluble humic acid multi-element solid fertilizer and production method thereof " described fertilizer is mainly formulated by fulvo acid, water-soluble nitrogenous fertilizer, water soluble phosphorous fertilizer, water soluble potassic fertilizer, water-soluble complexing trace element.

Provided by the invention should special use fertilizer, be the reliable basis of surveying the soil prescription, for scientific basis has been established in the fertilising of surveying soil prescription and " liquid manure is integrated ", important practical value is arranged for promoting agriculture low-carbon economy development.

Summary of the invention

The objective of the invention is to: with weathered coal or brown coal or peat is raw material, makes a kind of drip irrigation full price fertilizer, is used for fertilization compositions based on earth measurement and " the integrated fertilising of liquid manure ", i.e. water saving joint again is fertile, for the low-carbon (LC) agricultural plays important exemplary role.

The present invention seeks to realize like this: a kind of full price fertilizer and preparation method who is used for drip irrigation, with the parts by weight preparation raw material, its component is: organic 65-75 part, S-WAT 4-6 part, Sodium Pyrosulfite 5-6 part, potassium oxide 9-12 part, nitric acid 4-7 part ,Vanadium Pentoxide in FLAKES 4-6 part, liquefied ammonia 13-17 part and water; Through preparing: organic matter and water 1:1 ratio are dropped in the reactor, stir, add Sodium Nitrite and Sodium Pyrosulfite successively, at 140-145 ℃, under pressure 0.4 MPa, reacted 50-60 minute, sulfonation reaction finishes, be cooled to 70-80 ℃, add nitric acid and carry out nitration reaction, time 30-35 minute discharging; Reaction mass is placed on water distribution in the kneader through dryness in the sun, its material-water ratio 1:0.5; Adding Vanadium Pentoxide in FLAKES mediates and connects skill reaction, time 30-35 minute; Add potassium oxide and liquefied ammonia again and carry out neutralization reaction, control pH value 6.0-8.0 gets the paste solid; Drying line drying, temperature are 70-150 ℃, time 10-15 minute, dispose and get product through pulverizing, tablets press again;

Wherein You Jizhi preparation: with the pure 100-120 order that arrives of weathering coal dust, through the air float separator selection by winnowing, use water precipitation, its coal-water ratio is 1: 1, and normal pressure stirred 45-55 minute down, and separation gets product.

Technical essential of the present invention: (1) remains on more than 80% through the raw material organic content of selection by winnowing; (2) the control sulfonation temperature must be higher than 141 ℃; (3) You Jizhi humic acids belongs to polymer, middle molecule, and low molecular combination, sulfonation obtains enough activity hydroxy content after nitration is handled, and organic humic acid water-soluble is reached more than 90%.The full price fertilizer that this method is produced has the stiffening effect of plant-growth regulator, drought resistance agent, soil improvement agent, can save fertilely 60%, and water saving 40% shows technical progress.

   

Description of drawings

The invention will be further described below in conjunction with accompanying drawing.

Accompanying drawing 1 is the purifying technique schematic flow sheet of raw material;

As shown in the figure: weathered coal is pure through the machinery mill, selection by winnowing, and wet-precipitated gets organic.

Accompanying drawing 2 is the production technique schematic flow sheet;

As shown in the figure: organic through sulfonation, nitration, connect skill, neutralization, drying, finished product; Wherein primary drying is piled up airing after nitration; Facilities and equipments drying after neutralization reaction once.

 

Embodiment

Comparative examples of the present invention is described further.

Embodiment

Step 1: raw material powder essence is to 120 orders, and through selection by winnowing, weathered coal or brown coal or 1: 1 water washing and precipitating of peat employing with selection by winnowing stirred 50 minutes; Detect organic matter and reach more than 80%, can be directly used in production.

Step 2: with the parts by weight preparation raw material: organic 60 parts, 10 parts of potassium oxides, 5 parts of Sodium Pyrosulfites, 5 parts of S-WATs, 5 parts in nitric acid (net content), 5 parts of Vanadium Pentoxide in FLAKESs, 15 parts in liquefied ammonia (net content); Organic matter and water 1:1 ratio are put in the rot-resistant reactor, added Sodium Nitrite and Sodium Pyrosulfite successively, under 140 ℃, pressure 0.4 MPa, react and be sulfonation reaction in 50 minutes; Sulfonation reaction finishes to be cooled to 80 ℃, adds nitric acid and carries out nitration reaction, reacts discharging in 30 minutes; Material joins water distribution in the stainless steel kneader through dryness in the sun, its material-water ratio 1:0.5; Drop into Vanadium Pentoxide in FLAKES enforcement kneading and connect the skill reaction, the time is 30 minutes; Add potassium oxide and liquefied ammonia again and carry out neutralization reaction, control pH value 7.5; Gained paste solid, drying, its temperature are 150 ℃, 10 minutes time, dispose through pulverizing, tablets press again, get product.

The present invention selects the technical parameter of kneader for use: capacity 200L; Mix oar several 2; Mix the oar rotating speed: 460r/930r/min type of heating: steam: pressure 0.29MPa electric power 8KW; Electric motor: YD250S-8/4 30/42KW.

The technical indicator checking of product of the present invention:

Organic content (butt) 40%-50%; Nitrogen content (butt) 15%--18%; Phosphorus content (Vanadium Pentoxide in FLAKES meter) 3%-4%; Potassium content (in potassium oxide) 6%--8%;

Claims (1)

1. a full price fertilizer and preparation method who is used for drip irrigation, it is characterized in that: with the parts by weight preparation raw material, its component is: organic 65-75 part, S-WAT 4-6 part, Sodium Pyrosulfite 5-6 part, potassium oxide 9-12 part, nitric acid 4-7 part ,Vanadium Pentoxide in FLAKES 4-6 part, liquefied ammonia 13-17 part and water; Through preparing: organic matter and water 1:1 ratio are dropped in the reactor, stir, add Sodium Nitrite and Sodium Pyrosulfite successively, at 140-145 ℃, under pressure 0.4 MPa, reacted 50-60 minute, sulfonation reaction finishes, be cooled to 70-80 ℃, add nitric acid and carry out nitration reaction, time 30-35 minute discharging; Reaction mass is placed on water distribution in the kneader through dryness in the sun, its material-water ratio 1:0.5; Adding Vanadium Pentoxide in FLAKES mediates and connects skill reaction, time 30-35 minute; Add potassium oxide and liquefied ammonia again and carry out neutralization reaction, control pH value 6.0-8.0 gets the paste solid; Drying line drying, temperature are 70-150 ℃, time 10-15 minute, dispose and get product through pulverizing, tablets press again;

Wherein You Jizhi preparation: with the pure 100-120 order that arrives of weathering coal dust, through the air float separator selection by winnowing, use water precipitation, its coal-water ratio is 1: 1, and normal pressure stirred 45-55 minute down, and separation gets product.

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