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Method for producing long-acting soil conditioning agent by using potassium feldspar and organic waste

A technology for organic wastes and soil conditioners, applied in the field of long-acting soil conditioners, can solve problems such as unsatisfactory comprehensive utilization of resources, high fluoride content, environmental or air pollution, etc., achieve a reasonable proportion of ingredients and improve quality , the effect of promoting aging

Active Publication Date: 2013-12-25
SHANGHAI RES INST OF CHEM IND +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The energy consumption in the preparation process of the above several methods is high, especially the amount of fluoride is high, the comprehensive utilization of resources is not ideal, and more "three wastes" substances are discharged to varying degrees, causing greater pollution to the environment or the atmosphere.

Method used

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  • Method for producing long-acting soil conditioning agent by using potassium feldspar and organic waste

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0035] For the method of producing long-acting soil conditioner using potash feldspar and organic waste, the process flow of this embodiment is as attached figure 1 Shown. Potash feldspar, limestone, gypsum, magnesium sulfate, and sodium sulfate are mixed in weight parts of 10:5:1:1:1, and the mixture is crushed to 50-100mm by a jaw crusher or in other ways. The crushed mixture is roasted by adding a certain amount of coal or other fuels in a rotary kiln, the roasting temperature is controlled at 1000°C, and the roasting time is 10 minutes. After the roasting, the ingredients are cooled to form a sand-like substance, which is then ground into powder with an average particle size of 0.5 to 1.5 mm using an air sweep mill. Add poultry and livestock excrement of equal quality to the powder and mix for 10 days, and then add aerobic bacteria to ferment for 10 days. The fermented mixture is dried and dehydrated by the tail gas produced by the rotary kiln roasting to prepare the prod...

Embodiment 2

[0037] For the method of producing long-acting soil conditioner using potash feldspar and organic waste, the process flow of this embodiment is as attached figure 1 Shown. Potash feldspar, limestone, gypsum, magnesium sulfate, and sodium sulfate are mixed in weight parts of 10:6:1:1:1, and the mixture is crushed to 50-100 mm. The crushed mixture is put into a rotary kiln for roasting, the roasting temperature is controlled at 1000°C, and the roasting time is 20 minutes. After the roasting, the ingredients are cooled to form a sand-like substance, which is then ground into powder with an average particle size of 0.5 to 1.5 mm. Add poultry and livestock excrement of equal quality to the powder and mix for 10 days, and then add aerobic bacteria to ferment for 10 days. The fermented mixture is dried and dehydrated by the tail gas produced by the rotary kiln roasting to prepare the product long-acting soil conditioner.

Embodiment 3

[0039] For the method of producing long-acting soil conditioner using potash feldspar and organic waste, the process flow of this embodiment is as attached figure 1 Shown. Potash feldspar, limestone, gypsum, magnesium sulfate, and sodium sulfate are mixed in weight parts of 10:10:1:1:1, and the mixture is crushed to 50-100 mm. The crushed mixture is put into a rotary kiln for roasting, the roasting temperature is controlled at 1000°C, and the roasting time is 30 minutes. After the roasting, the ingredients are cooled to form a sand-like substance, which is then ground into powder with an average particle size of 0.5 to 1.5 mm. Poultry excrement was added to the powder at a ratio of 9:1 and mixed for anaerobic fermentation for 20 days, and then aerobic bacteria were added for fermentation for 10 days. The fermented mixture is dried and dehydrated by the tail gas produced by the rotary kiln roasting to prepare the product long-acting soil conditioner.

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Abstract

The invention discloses a method for producing a long-acting soil conditioning agent by using potassium feldspar and organic waste. Potassium feldspar, limestone, aid and coal are used as raw materials in the method. The method comprises the following steps of: roasting the crushed raw materials in a rotary kiln by adding the coal, and cooling and milling the roasted raw materials; and mixing the powder and the organic waste such as animal excrement in a farm and the like, performing anaerobic and aerobic continuous fermentation step by step, performing partial dehydration, and thus obtaining a finished product. The produced long-acting soil conditioning agent contains a certain amount of nitrogen, phosphorus, potassium, calcium, magnesium, sulfur, soluble silicon, humic acid and the like, so the soil conditioning agent can effectively improve the soil and provides nutritional components for crops for long time. The soil conditioning agent can be directly applied, and can also be applied with chemical fertilizers. According to the method for producing the long-acting soil conditioning agent by using the potassium feldspar and the organic waste, the production raw materials are mineral in the nature and waste in the farm, the raw materials are extremely rich and cheap, and the production process is energy-saving and environment-friendly.

Description

Technical field [0001] The invention relates to a method for producing a soil conditioner, in particular to a method for producing a long-acting soil conditioner using potassium feldspar and organic waste. Background technique [0002] Plant growth mainly requires 16 essential nutrient elements. In terms of importance, potassium is the third element. In my country's agricultural fertilization, the proportion of nitrogen, phosphorus, and potassium has been imbalanced for a long time, below a reasonable level, especially the imbalance of potassium fertilizer is more serious. my country is a country with extremely shortage of soluble potassium resources. Qinghai has 116 million tons of potash reserves (in KCl), and the average KCl grade of potassium-rich brine deposits is 1.29%; Xinjiang Lop Nur has 250 million tons of potash reserves (in KCl), and the average brine KCl grade is 1.40 %. my country's per capita reserves of soluble potassium salts are only 1 / 14 of the world level; it...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09K17/40C09K101/00
Inventor 段路路刘晓霞刘刚柏万文张小沁邓维建
Owner SHANGHAI RES INST OF CHEM IND
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