Method for producing organic-inorganic compound fertilizer by using high tower melting granulation process

A technology of melt granulation and compound fertilizer, which is applied in the direction of fertilizer mixture, fertilization device, application, etc. It can solve the problems of poor utilization of organic matter sources, waste of organic fertilizer resources, high logistics and transportation costs, and achieve product moisture. Low, no three-waste discharge, high-intensity effect

Inactive Publication Date: 2012-10-17
徐州市芭田生态有限公司
View PDF5 Cites 27 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, these three sources of organic matter have not been well utilized. The country produces more than 5 billion tons of various organic wastes every year, which contain a large amount of organic matter and nutrients necessary for plants such as nitrogen and phosphorus, and a large amount of organic fertilizer. Resources are largely discarded and wasted turning into organic waste
[0004] In the prior art, organic-inorganic compound fertilizers are generally produced by conventional rotary drum and disc spray-coa

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Method for producing organic-inorganic compound fertilizer by using high tower melting granulation process

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0066] a) 25kg of peat with a water content of 3.0% (mass) (the mass percentage of organic matter is 75%) is microwave-dried, crushed, and passed through a 20-mesh sieve, and then 5kg of fly ash (mass percentage of organic matter) is added 30%) (fly ash does not require pretreatment and can be used directly);

[0067] b) Add 50kg of urea into the melting tank and heat and melt to obtain urea melt;

[0068] c) Pass the pretreated peat, fly ash and urea melt into the primary mixer, and add 15kg of potassium chloride, 4kg of monoammonium phosphate, and 1kg of trace elements (mixture of zinc sulfate and borax) for primary mixing, The mixing temperature is 106°C~118°C; (the primary mixer is equipped with an automatic overflow device, and when the accumulated slurry level exceeds a certain level, it will automatically overflow to the secondary mixing);

[0069] d) The mixture after primary mixing is passed into the second-stage mixer of the high tower for secondary mixing to make a...

Embodiment 2

[0075] a) 40kg of peat soil with a water content of 4% (mass) (the mass percentage of organic matter is 60%) is microwave-dried and sieved;

[0076] b) Add 38kg of urea into the melting tank and heat and melt to obtain urea melt;

[0077] c) Put the pretreated peat, fly ash (peat soil) and urea melt into the primary mixer, and add 13kg of potassium chloride, 8kg of monoammonium phosphate, and 1kg of urease inhibitor for primary mixing. The mixing temperature 100°C~114°C;

[0078] d) The mixture after the primary mixing is passed into the second-stage mixer of the high tower, and the secondary mixing is carried out at 100 ° C ~ 106 ° C to make a fluid solid solution mixture;

[0079] e) Pass the fluid solid solution mixture into a slurry emulsifier for emulsification at 100°C to 106°C to obtain a fluid emulsified slurry;

[0080] f) Pass the fluid emulsified slurry into the high-tower granulator for spray granulation, and the granulation temperature is 100°C to 106°C;

[008...

Embodiment 3

[0084] a) 40kg of peat charcoal (the mass percentage of organic matter is 75%) with a water content of 2.5% (mass) is microwave-dried, crushed and sieved;

[0085] b) Add 36kg of urea into the melting tank and heat and melt to obtain urea melt;

[0086] c) Pass the pretreated peat and urea melt into the primary mixer, and add 23kg of potassium chloride and 1kg of polyaspartic acid for primary mixing, and the mixing temperature is 108°C~120°C;

[0087] d) The mixture after the primary mixing is passed into the second-stage mixer of the high tower, and the secondary mixing is carried out under the condition of 108 ° C ~ 110 ° C to make a fluid solid solution mixture;

[0088] e) Pass the fluid solid solution mixture into a slurry emulsifier to emulsify at 100°C~110°C to obtain a fluid emulsified slurry;

[0089] f) Pass the fluid emulsified slurry into the high-tower granulator for spray granulation, and the granulation temperature is 100°C to 106°C;

[0090] g) cooling the gr...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

PUM

No PUM Login to view more

Abstract

The invention provides a method for producing an organic-inorganic compound fertilizer by using a high tower melting granulation process. The method comprises the following steps that a pretreated organic raw material enters into a mixer of a high tower and is mixed and cross-linked with molten urine slurry, a nitrogen raw material, a potassium raw material, a filling material, a phosphorus raw material and a functional material, a resultant is activated and is then emulsified in a slurry emulsifying machine, slurry obtained after emulsification directly enters into a high tower granulator for spray granulation and obtained particles undergo the procedures of cooling, screening and surface treatment so as to obtain the high tower organic-inorganic compound fertilizer. The fertilizer contains, by mass, 20 to 30% of organic matters, 30 to 35% of inorganic nutrients and 0.5 to 5.0% of water. The fertilizer prepared by using the method provided in the invention has the following advantages: the particles of the fertilizer are smooth, round and transparent, have high strength and hardly suffer from efflorescence; production process for the fertilizer enables low energy consumption to be realized and is clean and environment friendly, so the fertilizer belongs to the domain of national low carbon agricultural development strategies.

Description

technical field [0001] The invention relates to a method for producing organic-inorganic compound fertilizer by a high-tower melt granulation process. Background technique [0002] In recent years, the long-term excessive application of chemical fertilizers has caused soil compaction, environmental pollution, and the decline in the quality of agricultural products. Coupled with the rapid rise in the price of chemical fertilizers, safe, environmentally friendly, and green organic fertilizers have once again attracted people's attention, and the market demand has continued to increase. [0003] my country has a wide range of organic fertilizer resources, mainly industrial, agricultural, and domestic waste. At present, these three sources of organic matter have not been well utilized. The country produces more than 5 billion tons of various organic wastes every year, which contain a large amount of organic matter and nutrients necessary for plants such as nitrogen and phosphoru...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

Application Information

Patent Timeline
no application Login to view more
IPC IPC(8): C05G3/00
Inventor 潘有理廖威
Owner 徐州市芭田生态有限公司
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap