Preparation method of carbon-based compound slow-release fertilizer

A slow-release fertilizer, carbon-based technology, applied in fertilizer mixtures, fertilization devices, applications, etc., can solve problems such as ineffective utilization of straw, and achieve the effect of providing phosphorus utilization, simple production process, and increasing yield.

Active Publication Date: 2013-03-13
克拉玛依市奥峰环保科技有限责任公司
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Problems solved by technology

② Patent No. CN102211964A, the present invention discloses a method of making charcoal from crop straw and producing s

Method used

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  • Preparation method of carbon-based compound slow-release fertilizer
  • Preparation method of carbon-based compound slow-release fertilizer

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Embodiment

[0016] For the carbon-based compound slow-release fertilizer produced by the method, the raw materials are prepared in parts by weight:

[0017] Put air-dried chicken manure into an autoclave tank, sterilize it at 2 Pa for 2 hours to become enzyme-free chicken manure, pass through a 60-mesh sieve after crushing, and then dry it by spontaneous combustion until the moisture content is less than 11%. 25kg of enzymatic bacteria chicken manure, 12kg of bone powder, 7kg of straw bio-carbon, 12kg of large-grained urea, 23kg of ammonium dihydrogen phosphate, and 18kg of potassium sulfate are sent to a ZLC-300 mixer for mixing; Add 2 parts of wood vinegar and 3 parts of water to mix the ingredients, and use ZLC-300 organic fertilizer granulator for pressure granulation. The granulated fertilizer is sieved with 60 mesh, and the underscreen can be returned to the granulation equipment for further processing. Processing and granulation into qualified fertilizers, after natural cooling to ...

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Abstract

The invention provides a preparation method of a carbon-based compound slow-release fertilizer. Raw materials comprise, by weight, 5 to 10 parts of straw biological black carbon, 2 to 5 parts of pyroligneous liquor, 21 to 34 parts of enzyme-free bacteria chicken manure, 10 to 15 parts of bone meal, 18 parts of potassium sulfate, 22 to 24 parts of ammonium biphosphate, 11 to 12 parts of large-granule urea and 2 to 5 parts of water. The preparation method comprises putting the crushed enzyme-free bacteria chicken manure, straw biological black carbon, bone meal, large-granule urea, ammonium biphosphate and potassium sulfate into a ZLC-300 type mixer for mixing and stirring, putting them into a KP-300 type organic fertilizer granulator for granulating after uniformly mixing, adding 2 to 5 parts of the pyroligneous liquor and 2 to 5 parts of water while granulating, naturally cooling the resulting to be lower than 28 DEG C after the granulation, and packaging it, wherein the enzyme-free bacteria chicken manure is disinfected for 2 to 3 hours under 2 Pa in a disinfection pot, dried in a tumble dryer, crushed, and sieved by a 60-mesh sieve, with a water content being less than 11 %.

Description

technical field [0001] The invention relates to the preparation of compound slow-release fertilizers, in particular to the reasonable disposal of farmyard manure and straw, and the obtained fertilizers and methods have produced outstanding practical effects. Background technique [0002] With new breakthroughs in chemical fertilizers and pesticides, the output of agricultural and forestry crops has increased year by year accordingly. How to effectively use straw waste in agricultural production and turn waste into treasure has attracted great attention. The carbon-based compound slow-release fertilizer is based on the good matrix adsorption, temperature increase and heat preservation of straw bio-black carbon. Through direct low-temperature carbonization of straw raw materials, the original micropores and high porosity are completely retained. The advantages make it an ideal long-acting slow-release fertilizer coating material. [0003] As early as 1957, Japan used wood vin...

Claims

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Application Information

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IPC IPC(8): C05G1/06
Inventor 辛娜徐万里马汉青
Owner 克拉玛依市奥峰环保科技有限责任公司
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