Unlock instant, AI-driven research and patent intelligence for your innovation.

Weathered coal activated organic and inorganic compound fertilizer and preparation method thereof

A compound fertilizer and weathered coal technology, which is applied in fertilizer mixture, fertilization device, application, etc., can solve the problems of unstable activation effect, high cost, and alkali-burned seedlings, and achieve obvious effect of improving soil and increasing production, low cost, and providing Nutrient effect

Active Publication Date: 2013-04-10
INST OF AGRI RESOURCES & ENVIRONMENT SHANDONG ACADEMY OF AGRI SCI
View PDF9 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Relevant documents using alkalization activation include CN1400197A, CN101152987A, and CN101429072A. The existing technical solutions mainly use potassium hydroxide, potassium carbonate and other alkaline substances with strong alkalinity and high price, which have high cost and residual unreacted Alkali is easy to cause the problem of burning seedlings, and the process is complicated and needs to be made into activator or slurry. Even if the ammonia water with low price and weak alkalinity is used for activation, there is an activation effect caused by the pyrolysis of ammonium humate during the fertilizer drying stage. unstable problem

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
  • Weathered coal activated organic and inorganic compound fertilizer and preparation method thereof
  • Weathered coal activated organic and inorganic compound fertilizer and preparation method thereof
  • Weathered coal activated organic and inorganic compound fertilizer and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0045] Embodiment 1: weathered coal activation type organic-inorganic compound fertilizer, the raw materials are composed as follows by weight:

[0046] Weathered coal (dry basis) 26 parts, urea 25 parts, sodium bicarbonate 0.6 part, potassium bicarbonate 0.4 part,

[0047] 6 parts of monoammonium phosphate, 8 parts of diammonium phosphate, 24 parts of potassium sulfate, 1.9 parts of borax, and 0.1 part of ammonium molybdate.

[0048]According to the ratio, first dissolve sodium bicarbonate and potassium bicarbonate in 4 parts of water to prepare a solution with a concentration of 20wt%, then completely spray the solution on the weathered coal, use a mixer to stir while spraying, stop spraying, and stir evenly Then release it, stack it into a strip stack with a bottom width of 2 meters and a height of 1 meter, cover it with a layer of plastic film, and let it stand for 30 hours, then mix it with crushed urea, monoammonium phosphate, diammonium phosphate, potassium sulfate, bor...

Embodiment 2

[0049] Embodiment 2: weathered coal activation type organic-inorganic compound fertilizer, the raw materials are composed as follows by weight:

[0050] 30 parts of weathered coal (dry basis), 25 parts of urea, 0.6 parts of sodium bicarbonate, 0.4 parts of potassium bicarbonate,

[0051] 6 parts of monoammonium phosphate, 8 parts of diammonium phosphate, 20 parts of potassium chloride, 1.9 parts of borax, and 0.1 part of ammonium molybdate.

[0052] According to proportioning, sodium bicarbonate and potassium bicarbonate are dissolved in 5 parts of water earlier, be mixed with concentration and be 16.7wt% solution, then make total nutrient ≥ 30% (N-P 2 o 5 -K 2 O, 12-6-12) Weathered coal activated organic-inorganic compound fertilizer. The inlet temperature of the dryer used is controlled at 200°C-260°C, and the outlet temperature is 86-88°C.

Embodiment 3

[0053] Embodiment 3: weathered coal activation type organic-inorganic compound fertilizer, the raw materials are composed as follows by weight:

[0054] Weathered coal (dry basis) 35 parts, urea 21 parts, sodium bicarbonate 0.6 part, potassium bicarbonate 0.4 part,

[0055] 5 parts of monoammonium phosphate, 6 parts of diammonium phosphate, 20 parts of potassium sulfate, 1.9 parts of borax, 0.1 part of ammonium molybdate,

[0056] Dissolve sodium bicarbonate and potassium bicarbonate in 5 parts of water first, and prepare a solution with a concentration of 16.7wt%, then spray this solution completely on 35 parts of weathered coal, use a mixer to spray while stirring, stop spraying and wait for uniform mixing Then release it, stack it into a strip stack with a bottom width of about 2 meters and a height of about 1 meter, cover it with a layer of plastic film, let it stand for 48 hours, and then mix it with crushed urea, monoammonium phosphate, diammonium phosphate, potassium su...

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 relates to a weathered coal activated organic and inorganic compound fertilizer and a preparation method thereof. The fertilizer provided by the invention contains the following raw materials in parts by weight: 25-40 parts of weathered coal (dry basis), 1-2 parts of bicarbonate, 18-25 parts of urea, 10-16 parts of phosphatic fertilizer, 15-25 parts of potash fertilizer and 2-3 parts of trace element fertilizer. The preparation method comprises the steps of activating the weathered coal, crushing the raw materials, uniformly mixing according to a mixing ratio, pelletizing and drying. By using the bicarbonate to activate the weathered coal, the invention overcomes defects of high strong base activation cost, complicated process and instable activation effects of ammonium bicarbonate and ammonia water and has the advantages of simple activation process, low cost, stable effect, high water soluble humic acid content, strong bioactivity and high utilization rate of nutrients; and the weathered coal activated organic and inorganic compound fertilizer can effectively improve the soil, promote the growth of the crops, increase the yield and improve the quality.

Description

technical field [0001] The invention relates to an organic-inorganic compound fertilizer and a preparation method thereof, in particular to an organic-inorganic compound fertilizer activated by weathered coal and a preparation method thereof. Background technique [0002] The organic-inorganic compound fertilizer combines organic and inorganic, which not only exerts the advantages of organic fertilizer in improving soil, but also overcomes the shortcomings of low nutrient content and weak fertilizer supply capacity of organic fertilizer. It can improve soil, increase crop yield, and improve crop yield. Quality has played an important role. By the end of 2007, the production and sales of organic-inorganic compound fertilizers in my country reached 6.5 million tons. Some problems have also been found in the application of organic-inorganic compound fertilizers. Due to the abundance of weathered coal resources in my country, low price, and good processing performance, the organ...

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
Patent Type & Authority Patents(China)
IPC IPC(8): C05G3/00C05G3/04C05G3/80
Inventor 林海涛刘兆辉江丽华石璟王梅沈玉文宋效宗谭德水高新昊徐钰郑福丽
Owner INST OF AGRI RESOURCES & ENVIRONMENT SHANDONG ACADEMY OF AGRI SCI