CN102659461B - High-porosity compound fertilizer high tower granulating method and high-porosity compound fertilizer - Google Patents

High-porosity compound fertilizer high tower granulating method and high-porosity compound fertilizer Download PDF

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CN102659461B
CN102659461B CN 201210116098 CN201210116098A CN102659461B CN 102659461 B CN102659461 B CN 102659461B CN 201210116098 CN201210116098 CN 201210116098 CN 201210116098 A CN201210116098 A CN 201210116098A CN 102659461 B CN102659461 B CN 102659461B
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dioxide
powder material
high tower
bicarbonate
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CN102659461A (en
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冉德清
张玉梅
赵文华
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SHAANXI JINGSHENG FERTILIZER INDUSTRY GROUP Co Ltd
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SHAANXI JINGSHENG FERTILIZER INDUSTRY GROUP Co Ltd
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Abstract

The invention relates to a high-porosity compound fertilizer high tower granulating method and a high-porosity compound fertilizer and aims to solve the problem of difficulty in realization of high porosity in the prior art. In the method, a compound fertilizer molten material is formed by granulating in a high tower. The high-porosity compound fertilizer high tower granulating method is characterized in that 0.3-0.5 percent by weigh of ammonium bicarbonate is added into the molten material and is granulated in the high tower after being uniformly mixed. The ammonium bicarbonate is an ammonium bicarbonate lightweight silicon powder mixture formed by uniformly mixing a lightweight powder material taking silicon dioxide as a main component, wherein the weight ratio of the lightweight powder material taking the silicon dioxide as the main component to the ammonium bicarbonate is (3-30)/100. The lightweight powder material taking the silicon dioxide as the main component is expansion perlite powder or diatomite powder. The compound fertilizer is formed by adding the 0.3-0.5 percent by weigh of ammonium bicarbonate into the compound fertilizer molten material, uniformly mixing and granulating in the high tower. The high-porosity compound fertilizer high tower granulating method and the high-porosity compound fertilizer have the advantages of low cost, easiness in realization, high reliability, easiness in preparation of a low-nitrogen high tower compound fertilizer, high porosity of the prepared compound fertilizer, small volume weight and low cost, and the problem of overfertilization is favorably solved.

Description

High hole composite fertilizer's high tower prilling method and high hole composite fertilizer
Technical field
The present invention relates to composite fertilizer's high tower prilling technology, particularly relate to a kind of high hole composite fertilizer's high tower prilling method and high hole composite fertilizer.
Background technology
High tower is the molten slurry of composite fertilizer material high temperature or becomes the molten mixture of starching, shedding from high tower the decline process, when being scattered because of the englobement of surface tension reason, interact with the air resistance that at the bottom of tower, rises, carry out with it dropping at the bottom of the tower after heat exchange, fall into the granule materials at the bottom of the tower, after the screening surface treatment, obtain granular composite fertilizer.Particle is few because stand pyroprocess moisture, is not easy caking.Material fully mixes reflection, and particle is sparkling and crystal-clear, sells the lover.But it is high-purity that reaction mass also needs, so many high concentration formulations, the urea ratio is also higher relatively.In addition: hole (eye) rate of existing high tower compound fertilizer is all at 10-30%, and stable high porosity is very difficult to realize.The high composite fertilizer of porosity specific surface area is big, prevented from caking, and easier being absorbed more is conducive to reduce relatively the fertilizer usage quantity, reduces fertilizer loss, improves fertilizer efficiency, makes water body environment avoid eutrophy harm.
Summary of the invention
The object of the invention is to overcome the above-mentioned defective of prior art, provides a kind of cost low, is easy to realize, the high hole composite fertilizer high tower prilling method that reliability is high, the object of the invention also are to provide this method produces high hole composite fertilizer.
For achieving the above object, the high hole of the present invention composite fertilizer high tower prilling method, composite fertilizer's melting charge forms through high tower prilling, its special feature is to add in the melting charge bicarbonate of ammonia of 0.3-0.5% weight ratio, behind the mixing again through high tower prilling.Described composite fertilizer melting charge both can be the urine base-material, also can be the nitro material.The high tower compound fertilizer porosity that existing high tower prilling method is made is usually at 10-30%, the high tower compound fertilizer porosity that adopts the inventive method to produce can improve 90% on rate basis, pre-existent pore, namely reach the porosity of 19-57%, and it is low to have a cost, be easy to realize the advantage that reliability is high.And can both make low nitrogen high tower compound fertilizer, can not make 15 as prior art; 5; 25 low nitrogen high tower compound fertilizer, and adopt the inventive method just to accomplish easily.
As optimization, described bicarbonate of ammonia is evenly to sneak into the carbon ammonium lightweight silica flour mixture that silicon-dioxide is the light powder material of main component, and wherein silicon-dioxide is that the light powder material of main component and the weight ratio of bicarbonate of ammonia are 3-30/100.Silicon-dioxide is that light powder material and composite fertilizer's melting charge avidity of main component is good, easily fully mix fast with the composite fertilizer melting charge, and can fully adsorb bicarbonate of ammonia, the carbon ammonium is brought in composite fertilizer's melting charge fast, the hole that increases of giving full play to the carbon ammonium acts on.
As optimization, described silicon-dioxide is that the light powder material of main component is swelling perlite powder or diatomite in powder.
As optimization, described silicon-dioxide is that the fineness of the light powder material of main component is 〉=100 orders, and described silicon-dioxide is that the light powder material of main component and the weight ratio of bicarbonate of ammonia are 5-20/100.
As optimization, described silicon-dioxide is that the fineness of the light powder material of main component is 〉=200 orders, and described silicon-dioxide is that the light powder material of main component and the weight ratio of bicarbonate of ammonia are 6-12/100.
As optimization, described silicon-dioxide is that light powder material and the bicarbonate of ammonia of main component mixes the airtight preservation in back 12-24 hour.The light powder material and the bicarbonate of ammonia that are conducive to described silicon-dioxide and are main component fully adsorb combination, co-action.More preferably silicon-dioxide is that the light powder material of main component vacuumizes in advance, gets rid of hole hollow gas, confiscate under vacuum condition with bicarbonate of ammonia again and mix, and airtight preservation 12-24 hour.It is best to increase the hole effect like this.
As optimization, described bicarbonate of ammonia or carbon ammonium lightweight silica flour mixture 40-50 before sprinkling pelleting added during second, can either guarantee fully to hold to go into composite fertilizer's melting charge, can avoid the gasification too early before granulation of carbon ammonium again as much as possible; Described bicarbonate of ammonia or carbon ammonium lightweight silica flour mixture are to join in the melting mixing groove of mixing raw material, are conducive to fully mix fast.Mixing raw material described here is for the manufacture of the composite fertilizer material of high tower compound fertilizer and auxiliary material.
The high hole composite fertilizer that the method for the invention is made is the bicarbonate of ammonia that adds the 0.3-0.5% weight ratio in melting charge, forms through high tower prilling behind the mixing again.Described composite fertilizer melting charge both can be the urine base-material, also can be the nitro material.Have the porosity height, unit weight is little, and cost is low, is easy to make low nitrogen high tower compound fertilizer, is very beneficial for solving the advantage of excessive problem of fertilization.
As optimization, described bicarbonate of ammonia is evenly to sneak into the carbon ammonium lightweight silica flour mixture that silicon-dioxide is the light powder material of main component, and wherein silicon-dioxide is that the light powder material of main component and the weight ratio of bicarbonate of ammonia are 3-30/100.Silicon-dioxide is that the light powder material of main component can also play the siliceous fertilizer effect in composite fertilizer.Silicon-dioxide is that the light powder material of main component and other composition of composite fertilizer are combined in the high tower compound fertilizer jointly, and fertilizer efficiency mutually also more can gain.
As optimization, described silicon-dioxide is that the light powder material of main component is swelling perlite powder or diatomite in powder.The low nitrogen high tower compound fertilizer that preferably utilizes low nitrogen composite fertilizer melting charge to make.It is good that pearlstone has sound absorbing, and water absorbability is little, and the performance that frost resistance is strong can be used as agricultural improvement soil, increases the material of soil moisture conservation.Swelling perlite powder and diatomite in powder can both be given the high tower compound fertilizer new function of improving the soil and preserve soil moisture.
Through the used composite fertilizer of evidence the inventive method and composite fertilizer melting charge namely can be urine base-material also can be the nitro material.
The high tower compound fertilizer of making comprises: N18, P5, K22; N17, P5, K23; N15, P5, K25; N26, P15, K10; N24, P10, K14; N23, P12, K10; N19, P5, K21; N23, P12, K5; N30, P5, K5; N28, P6, K6; N23, P15, K5; N26, P13, K0; N24, P10, K14; N23, P12, K10; N24, P13, K8.
After adopting technique scheme, it is low that the high hole of the present invention composite fertilizer's high tower prilling method and high hole composite fertilizer have a cost, be easy to realize, the reliability height, easily make low nitrogen high tower compound fertilizer and prepared composite fertilizer porosity height, unit weight is little, and cost is low, is very beneficial for solving the advantage of excessive problem of fertilization.
Embodiment
Embodiment one, and the high hole of the present invention composite fertilizer's high tower prilling method and high hole composite fertilizer are that composite fertilizer's melting charge forms through high tower prilling, and its special feature is to add the bicarbonate of ammonia of 0.3% weight ratio in melting charge, behind the mixing again through high tower prilling.
Described bicarbonate of ammonia preferably before sprinkling pelleting 40-50 add during second; Described bicarbonate of ammonia is preferably to join in the melting mixing groove of mixing raw material.The composite fertilizer of making is: N18; P5; K22, N17; P5; K23, N15; P5; Three kinds of K25.Can improve porosity 60-90%.
Embodiment two, and the high hole of the present invention composite fertilizer's high tower prilling method and high hole composite fertilizer are that composite fertilizer's melting charge forms through high tower prilling, and its special feature is to add the bicarbonate of ammonia of 0.5% weight ratio in melting charge, behind the mixing again through high tower prilling.
Described bicarbonate of ammonia preferably before sprinkling pelleting 40-50 add during second; Described bicarbonate of ammonia is preferably to join in the melting mixing groove of mixing raw material.The composite fertilizer of making is: N18; P5; K22, N17; P5; K23, N15; P5; Three kinds of K25.Can improve porosity 60-90%.
Embodiment three, and the high hole of the present invention composite fertilizer's high tower prilling method and high hole composite fertilizer are that composite fertilizer's melting charge forms through high tower prilling, and its special feature is to add the bicarbonate of ammonia of 0.4% weight ratio in melting charge, behind the mixing again through high tower prilling.
Described bicarbonate of ammonia preferably before sprinkling pelleting 40-50 add during second; Described bicarbonate of ammonia is preferably to join in the melting mixing groove of mixing raw material.The composite fertilizer of making is: N18; P5; K22, N17; P5; K23, N15; P5; Three kinds of K25.Can improve porosity 60-90%.
Embodiment four, the high hole of the present invention composite fertilizer's high tower prilling method and high hole composite fertilizer are that composite fertilizer's melting charge forms through high tower prilling, what its special feature was to add in the melting charge 0.3% weight ratio evenly sneaks into the carbon ammonium lightweight silica flour mixture that silicon-dioxide is the light powder material of main component, behind the mixing again through high tower prilling.Silicon-dioxide is that the light powder material of main component and the weight ratio of bicarbonate of ammonia are 3/100.Described silicon-dioxide is that the light powder material of main component is swelling perlite powder.Described silicon-dioxide is that the fineness of the light powder material of main component is preferably 100 orders.
Described carbon ammonium lightweight silica flour mixture preferably before sprinkling pelleting 40-50 add during second; Described carbon ammonium lightweight silica flour mixture is preferably to join in the melting mixing groove of mixing raw material.The composite fertilizer of making is: N18; P5; K22, N17; P5; K23, N15; P5; Three kinds of K25.Can improve porosity 80-90%.
Embodiment five, the high hole of the present invention composite fertilizer's high tower prilling method and high hole composite fertilizer are that composite fertilizer's melting charge forms through high tower prilling, what its special feature was to add in the melting charge 0.5% weight ratio evenly sneaks into the carbon ammonium lightweight silica flour mixture that silicon-dioxide is the light powder material of main component, behind the mixing again through high tower prilling.Silicon-dioxide is that the light powder material of main component and the weight ratio of bicarbonate of ammonia are 30/100.Described silicon-dioxide is that the light powder material of main component is swelling perlite powder.Described silicon-dioxide is that the fineness of the light powder material of main component is preferably 100 orders.
Described carbon ammonium lightweight silica flour mixture preferably before sprinkling pelleting 40-50 add during second; Described carbon ammonium lightweight silica flour mixture is preferably to join in the melting mixing groove of mixing raw material.The composite fertilizer of making is: N18; P5; K22, N17; P5; K23, N15; P5; Three kinds of K25.Can improve porosity 80-90%.
Embodiment six, the high hole of the present invention composite fertilizer's high tower prilling method and high hole composite fertilizer are that composite fertilizer's melting charge forms through high tower prilling, what its special feature was to add in the melting charge 0.4% weight ratio evenly sneaks into the carbon ammonium lightweight silica flour mixture that silicon-dioxide is the light powder material of main component, behind the mixing again through high tower prilling.Silicon-dioxide is that the light powder material of main component and the weight ratio of bicarbonate of ammonia are 16/100.Described silicon-dioxide is that the light powder material of main component is swelling perlite powder.Described silicon-dioxide is that the fineness of the light powder material of main component is preferably 100 orders.
Described carbon ammonium lightweight silica flour mixture preferably before sprinkling pelleting 40-50 add during second; Described carbon ammonium lightweight silica flour mixture is preferably to join in the melting mixing groove of mixing raw material.The composite fertilizer of making is: N18; P5; K22, N17; P5; K23, N15; P5; Three kinds of K25.Can improve porosity 80-90%.
Embodiment seven, the high hole of the present invention composite fertilizer's high tower prilling method and high hole composite fertilizer are that composite fertilizer's melting charge forms through high tower prilling, what its special feature was to add in the melting charge 0.3% weight ratio evenly sneaks into the carbon ammonium lightweight silica flour mixture that silicon-dioxide is the light powder material of main component, behind the mixing again through high tower prilling.Silicon-dioxide is that the light powder material of main component and the weight ratio of bicarbonate of ammonia are 3/100.Described silicon-dioxide is that the light powder material of main component is person's diatomite in powder.Described silicon-dioxide is that the fineness of the light powder material of main component is preferably 100 orders.
Described carbon ammonium lightweight silica flour mixture preferably before sprinkling pelleting 40-50 add during second; Described carbon ammonium lightweight silica flour mixture is preferably to join in the melting mixing groove of mixing raw material.The composite fertilizer of making is: N18; P5; K22, N17; P5; K23, N15; P5; Three kinds of K25.Can improve porosity 80-90%.
Embodiment eight, the high hole of the present invention composite fertilizer's high tower prilling method and high hole composite fertilizer are that composite fertilizer's melting charge forms through high tower prilling, what its special feature was to add in the melting charge 0.5% weight ratio evenly sneaks into the carbon ammonium lightweight silica flour mixture that silicon-dioxide is the light powder material of main component, behind the mixing again through high tower prilling.Silicon-dioxide is that the light powder material of main component and the weight ratio of bicarbonate of ammonia are 30/100.Described silicon-dioxide is that the light powder material of main component is diatomite in powder.Described silicon-dioxide is that the fineness of the light powder material of main component is preferably 100 orders.
Described carbon ammonium lightweight silica flour mixture preferably before sprinkling pelleting 40-50 add during second; Described carbon ammonium lightweight silica flour mixture is preferably to join in the melting mixing groove of mixing raw material.The composite fertilizer of making is: N18; P5; K22, N17; P5; K23, N15; P5; Three kinds of K25.Can improve porosity 80-90%.
Embodiment nine, the high hole of the present invention composite fertilizer's high tower prilling method and high hole composite fertilizer are that composite fertilizer's melting charge forms through high tower prilling, what its special feature was to add in the melting charge 0.4% weight ratio evenly sneaks into the carbon ammonium lightweight silica flour mixture that silicon-dioxide is the light powder material of main component, behind the mixing again through high tower prilling.Silicon-dioxide is that the light powder material of main component and the weight ratio of bicarbonate of ammonia are 16/100.Described silicon-dioxide is that the light powder material of main component is diatomite in powder.Described silicon-dioxide is that the fineness of the light powder material of main component is preferably 100 orders.
Described carbon ammonium lightweight silica flour mixture preferably before sprinkling pelleting 40-50 add during second; Described carbon ammonium lightweight silica flour mixture is preferably to join in the melting mixing groove of mixing raw material.The composite fertilizer of making is: N18; P5; K22, N17; P5; K23, N15; P5; Three kinds of K25.Can improve porosity 80-90%.
Embodiment ten, the high hole of the present invention composite fertilizer's high tower prilling method and high hole composite fertilizer are that composite fertilizer's melting charge forms through high tower prilling, what its special feature was to add in the melting charge 0.3% weight ratio evenly sneaks into the carbon ammonium lightweight silica flour mixture that silicon-dioxide is the light powder material of main component, behind the mixing again through high tower prilling.Silicon-dioxide is that the light powder material of main component and the weight ratio of bicarbonate of ammonia are 5/100.Described silicon-dioxide is that the light powder material of main component is swelling perlite powder.Described silicon-dioxide is that the fineness of the light powder material of main component is preferably 100 orders.
Described carbon ammonium lightweight silica flour mixture preferably before sprinkling pelleting 40-50 add during second; Described carbon ammonium lightweight silica flour mixture is preferably to join in the melting mixing groove of mixing raw material.The composite fertilizer of making is: N18; P5; K22, N17; P5; K23, N15; P5; Three kinds of K25.Can improve porosity 80-90%.
Embodiment 11, the high hole of the present invention composite fertilizer's high tower prilling method and high hole composite fertilizer are that composite fertilizer's melting charge forms through high tower prilling, what its special feature was to add in the melting charge 0.5% weight ratio evenly sneaks into the carbon ammonium lightweight silica flour mixture that silicon-dioxide is the light powder material of main component, behind the mixing again through high tower prilling.Silicon-dioxide is that the light powder material of main component and the weight ratio of bicarbonate of ammonia are 20/100.Described silicon-dioxide is that the light powder material of main component is diatomite in powder.Described silicon-dioxide is that the fineness of the light powder material of main component is preferably 100 orders.
Described carbon ammonium lightweight silica flour mixture preferably before sprinkling pelleting 40-50 add during second; Described carbon ammonium lightweight silica flour mixture is preferably to join in the melting mixing groove of mixing raw material.The composite fertilizer of making is: N18; P5; K22, N17; P5; K23, N15; P5; Three kinds of K25.Can improve porosity 80-90%.
Embodiment 12, the high hole of the present invention composite fertilizer's high tower prilling method and high hole composite fertilizer are that composite fertilizer's melting charge forms through high tower prilling, what its special feature was to add in the melting charge 0.4% weight ratio evenly sneaks into the carbon ammonium lightweight silica flour mixture that silicon-dioxide is the light powder material of main component, behind the mixing again through high tower prilling.Silicon-dioxide is that the light powder material of main component and the weight ratio of bicarbonate of ammonia are 10/100.Described silicon-dioxide is that the light powder material of main component is swelling perlite powder.Described silicon-dioxide is that the fineness of the light powder material of main component is preferably 100 orders.
Described carbon ammonium lightweight silica flour mixture preferably before sprinkling pelleting 40-50 add during second; Described carbon ammonium lightweight silica flour mixture is preferably to join in the melting mixing groove of mixing raw material.The composite fertilizer of making is: N18; P5; K22, N17; P5; K23, N15; P5; Three kinds of K25.Can improve porosity 80-90%.
Embodiment 13, the high hole of the present invention composite fertilizer's high tower prilling method and high hole composite fertilizer are that composite fertilizer's melting charge forms through high tower prilling, what its special feature was to add in the melting charge 0.4% weight ratio evenly sneaks into the carbon ammonium lightweight silica flour mixture that silicon-dioxide is the light powder material of main component, behind the mixing again through high tower prilling.Silicon-dioxide is that the light powder material of main component and the weight ratio of bicarbonate of ammonia are 6/100.Described silicon-dioxide is that the light powder material of main component is diatomite in powder.Described silicon-dioxide is that the fineness of the light powder material of main component is preferably 100 orders.
Described bicarbonate of ammonia or carbon ammonium lightweight silica flour mixture preferably before sprinkling pelleting 40-50 add during second; Described carbon ammonium lightweight silica flour mixture is preferably to join in the melting mixing groove of mixing raw material.The composite fertilizer of making is: N18; P5; K22, N17; P5; K23, N15; P5; Three kinds of K25.Can improve porosity 80-90%.
Embodiment 14, the high hole of the present invention composite fertilizer's high tower prilling method and high hole composite fertilizer are that composite fertilizer's melting charge forms through high tower prilling, what its special feature was to add in the melting charge 0.3% weight ratio evenly sneaks into the carbon ammonium lightweight silica flour mixture that silicon-dioxide is the light powder material of main component, behind the mixing again through high tower prilling.Silicon-dioxide is that the light powder material of main component and the weight ratio of bicarbonate of ammonia are 12/100.Described silicon-dioxide is that the light powder material of main component is swelling perlite powder.Described silicon-dioxide is that the fineness of the light powder material of main component is preferably 100 orders.
Described carbon ammonium lightweight silica flour mixture preferably before sprinkling pelleting 40-50 add during second; Described carbon ammonium lightweight silica flour mixture is preferably to join in the melting mixing groove of mixing raw material.The composite fertilizer of making is: N18; P5; K22, N17; P5; K23, N15; P5; Three kinds of K25.Can improve porosity 80-90%.
Embodiment 15, the high hole of the present invention composite fertilizer's high tower prilling method and high hole composite fertilizer are that composite fertilizer's melting charge forms through high tower prilling, what its special feature was to add in the melting charge 0.5% weight ratio evenly sneaks into the carbon ammonium lightweight silica flour mixture that silicon-dioxide is the light powder material of main component, behind the mixing again through high tower prilling.Silicon-dioxide is that the light powder material of main component and the weight ratio of bicarbonate of ammonia are 9/100.Described silicon-dioxide is that the light powder material of main component is diatomite in powder.Described silicon-dioxide is that the fineness of the light powder material of main component is preferably 100 orders.
Described carbon ammonium lightweight silica flour mixture preferably before sprinkling pelleting 40-50 add during second; Described carbon ammonium lightweight silica flour mixture is preferably to join in the melting mixing groove of mixing raw material.The composite fertilizer of making is: N18; P5; K22, N17; P5; K23, N15; P5; Three kinds of K25.Can improve porosity 80-90%.
Embodiment 16, the high hole of the present invention composite fertilizer's high tower prilling method and high hole composite fertilizer are that composite fertilizer's melting charge forms through high tower prilling, what its special feature was to add in the melting charge 0.4% weight ratio evenly sneaks into the carbon ammonium lightweight silica flour mixture that silicon-dioxide is the light powder material of main component, behind the mixing again through high tower prilling.Silicon-dioxide is that the light powder material of main component and the weight ratio of bicarbonate of ammonia are 8/100.Described silicon-dioxide is that the light powder material of main component is swelling perlite powder.Described silicon-dioxide is that the fineness of the light powder material of main component is preferably 100 orders.
Described carbon ammonium lightweight silica flour mixture preferably before sprinkling pelleting 40-50 add during second; Described carbon ammonium lightweight silica flour mixture is preferably to join in the melting mixing groove of mixing raw material.The composite fertilizer of making is: N18; P5; K22, N17; P5; K23, N15; P5; Three kinds of K25.Can improve porosity 80-90%.More than all embodiment also carried out followingly further improving, that is: described silicon-dioxide is that the light powder material of main component mixes airtight preservations in back 12-24 hour with bicarbonate of ammonia, increases the hole like this through evidence and acts on better.More preferably silicon-dioxide is that the light powder material of main component vacuumizes in advance, gets rid of hole hollow gas, confiscate under vacuum condition with bicarbonate of ammonia again and mix, and airtight preservation 12-24 hour.Through evidence: it is best that the carbon ammonium lightweight silica flour mixture of handling like this increases the hole effect.
Annotate listed above-mentioned 16 embodiment, namely adopt the urea-base compound fertilizer melting charge, also adopt the nitro-compound fertilizer melting charge.
Except 16 above-mentioned three kinds exceptions, the inventor has also done the test arranged side by side of following high tower compound fertilizer kind according to above-mentioned 16 routine implementation conditions: N26, P15, K10; N24, P10, K14; N23, P12, K10; N19, P5, K21; N23, P12, K5; N30, P5, K5; N28, P6, K6; N23, P15, K5; N26, P13, K0; N24, P10, K14; N23, P12, K10; N24, P13, K8.Be that every kind of high tower compound fertilizer kind is done 32 examples (urine base and nitro) separately according to above-mentioned 16 routine conditions separately, the result can both improve the porosity of 60-90% on the prior art basis, lists no longer one by one here, specifies.

Claims (2)

1. one kind high hole composite fertilizer high tower prilling method, composite fertilizer's melting charge forms through high tower prilling, it is characterized in that adding in melting charge the bicarbonate of ammonia of 0.3-0.5% weight ratio, behind the mixing again through high tower prilling; Described bicarbonate of ammonia is that 40-50 added during second before sprinkling pelleting.
2. according to the described high tower prilling method of claim 1, it is characterized in that described bicarbonate of ammonia is evenly to sneak into the carbon ammonium lightweight silica flour mixture that silicon-dioxide is the light powder material of main component, wherein silicon-dioxide is that the light powder material of main component and the weight ratio of bicarbonate of ammonia are 3-30/100.
3, according to the described high tower prilling method of claim 2, it is characterized in that described silicon-dioxide is that the light powder material of main component is swelling perlite powder or diatomite in powder.
4, according to claim 2 or 3 described high tower prilling methods, it is characterized in that described silicon-dioxide is that the fineness of light powder material of main component is for 〉=100 orders; Described silicon-dioxide is that the light powder material of main component and the weight ratio of bicarbonate of ammonia are 5-20/100.
5, according to the described high tower prilling method of claim 4, it is characterized in that described silicon-dioxide be the fineness of light powder material of main component for 〉=200 orders, described silicon-dioxide is that the light powder material of main component and the weight ratio of bicarbonate of ammonia are 6-12/100.
6, according to the described high tower prilling method of claim 4, it is characterized in that described silicon-dioxide is that the light powder material of main component and bicarbonate of ammonia mix the airtight preservation in back 12-24 hour.
7, according to claim 1 or 2 or 3 described high tower prilling methods, it is characterized in that described bicarbonate of ammonia or carbon ammonium lightweight silica flour mixture are to join in the melting mixing groove of mixing raw material.
8, the described method of the claim 1 high hole composite fertilizer of making is characterized in that adding the bicarbonate of ammonia of 0.3-0.5% weight ratio in composite fertilizer's melting charge, form through high tower prilling behind the mixing again; Described bicarbonate of ammonia is that 40-50 added during second before sprinkling pelleting.
9, described high hole composite fertilizer according to Claim 8, it is characterized in that described bicarbonate of ammonia is evenly to sneak into the carbon ammonium lightweight silica flour mixture that silicon-dioxide is the light powder material of main component, wherein silicon-dioxide is that the light powder material of main component and the weight ratio of bicarbonate of ammonia are 3-30/100.
10, according to the described high hole of claim 9 composite fertilizer, it is characterized in that described silicon-dioxide is that the light powder material of main component is swelling perlite powder or diatomite in powder.
CN 201210116098 2012-04-20 2012-04-20 High-porosity compound fertilizer high tower granulating method and high-porosity compound fertilizer Expired - Fee Related CN102659461B (en)

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CN1206193C (en) * 2003-08-07 2005-06-15 周建军 Process for producing high concentration azophoska compound fertilizer by tower type pelletizing
CN100503524C (en) * 2005-09-13 2009-06-24 史丹利化肥股份有限公司 Melt slime granulating composite fertilizer and its production method
CN102276362B (en) * 2011-07-28 2013-05-08 吴金华 High-concentration compound fertilizer

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