Making method for granular organic fertilizers

A production method and technology of organic fertilizer, which are applied in the preparation of organic fertilizer, organic fertilizer, biological organic part treatment and other directions, can solve the problems of harmful gas environmental hazards, waste of organic resources, etc., and achieve environmental friendliness, high fermentation efficiency, and use effect. good effect

Inactive Publication Date: 2020-11-24
肥城中持十方生物能源有限公司 +3
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0006] Based on the existing problems in the prior art, the purpose of the present invention is to provide a method for producing granular organic fertilizers, which can solve the problems of existing organic fertilizer production methods, the waste of organic resources and the harm of harmful gases to the environment

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  • Making method for granular organic fertilizers
  • Making method for granular organic fertilizers
  • Making method for granular organic fertilizers

Examples

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Comparison scheme
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Embodiment 1

[0089] The present embodiment provides a kind of preparation method of granular organic fertilizer, comprises the following steps:

[0090] Step A: Anaerobic fermentation:

[0091] Corn stalks with a moisture content of 25% were crushed to a particle size of 20 mm using a straw grinder, and mixed with chicken manure with a moisture content of 80% and biogas slurry with a moisture content of 90% according to a mass ratio of 1:8:6. Make the high-dry anaerobic reactor (the DANAS high-dry anaerobic reactor developed by Beijing Zhongchi Green Energy Environmental Technology Co., Ltd. can be used) maintain the moisture content of the material at a level of 80.3%, and enter the anaerobic reactor for Anaerobic fermentation, the fermentation period is 30 days, and the fermentation temperature is 50°C;

[0092] Step B: Dehydration:

[0093] Transfer the anaerobic digestion solution to a screw extrusion dehydrator to remove a certain amount of water to obtain biogas residue with a mois...

Embodiment 2

[0105] The present embodiment provides a kind of preparation method of granular organic fertilizer, comprises the following steps:

[0106] Step A: Anaerobic fermentation:

[0107] Feed cow dung with a moisture content of 80% into a high-dry anaerobic reactor (DANAS high-dry anaerobic reactor developed by Beijing Zhongchi Green Energy Environmental Technology Co., Ltd.) to control the moisture content of the material in the reactor. 80% level, enter the anaerobic reactor for anaerobic fermentation, the fermentation period is 25 days, and the fermentation temperature is 48°C.

[0108] Step B: Dehydration:

[0109] Transfer the anaerobic digestion solution to a screw extrusion dehydrator for solid-liquid separation to obtain biogas residue with a moisture content of 70% and biogas slurry with a moisture content of 90%;

[0110] Step C: Aerobic fermentation:

[0111] The biogas residue with a moisture content of 70%, pig manure with a moisture content of 80% and wheat straw wi...

Embodiment 3

[0121] The present embodiment provides a kind of preparation method of granular organic fertilizer, comprises the following steps:

[0122] Step A: Anaerobic fermentation:

[0123] The soybean straw with a moisture content of 25% is crushed to a particle size of 10mm by a hammer-type straw grinder, and the biogas slurry with a moisture content of 93% is fed in a mass ratio of 2:11 to make the high-dry anaerobic reactor (The DANAS high-dry anaerobic reactor developed by Beijing Zhongchi Green Energy Environmental Technology Co., Ltd. can be used) The moisture content of the material in the material is maintained at a level of 82.3%, and it enters the anaerobic reactor for anaerobic fermentation. The fermentation period is 28 days , the fermentation temperature is 45°C:

[0124] Step B: Dehydration:

[0125] Transfer the anaerobic digestion solution to a screw extrusion dehydrator to remove a certain amount of water, and obtain biogas residue with a moisture content of 65% and...

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Abstract

The invention discloses a making method for granular organic fertilizer. The making method comprises: step A, anaerobic fermentation: performing anaerobic fermentation on an anaerobic mixed material in a high-dryness anaerobic reactor to obtain an anaerobic digestion solution; step B, dehydration: extruding the anaerobic digestion solution for dehydration to obtain biogas residues; step C, aerobicfermentation: mixing the biogas residues with auxiliary materials for aerobic fermentation; step D, aging: aging a mixed material obtained after aerobic fermentation to obtain organic fertilizers; step E, material making with the prepared organic fertilizer: mixing the organic fertilizer with disintegrating agent to obtain a mixed granulation material; step F, granulating: granulating the mixedgranulation material to obtain fertilizer granules; and step G, drying and cooling: drying and cooling the fertilizer granules to prepare the granular organic fertilizer. The method realizes multi-stage utilization of agricultural organic waste, can produce products including biogas, organic fertilizer and the like, and improves operating incomes. Compared with traditional treatment methods, the making method achieves zero emission of biogas slurry, and is more environment-friendly, and the produced fertilizer has a better using effect.

Description

technical field [0001] The invention relates to the field of organic fertilizer production, in particular to a method for producing granular organic fertilizer. Background technique [0002] Agricultural organic waste, mainly straw and livestock and poultry manure, is an environmental pollutant strongly advocated by the state in recent years. Fertilization of these organic wastes is currently a major way of utilization. At present, the manufacturing process of organic fertilizer mainly includes direct aerobic composting fermentation, anaerobic + aerobic. But above-mentioned these crafts all exist some shortcomings at present. For example, the direct aerobic composting process and aerobic + anaerobic process, usually in an open or semi-open environment, through continuous turning, ventilation, static storage and other measures, so that the material undergoes aerobic fermentation. Although organic fertilizer was also obtained, the production process not only caused the over...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C05F17/50C05G5/12C05G1/00C05F17/80
CPCC05D9/00C05F17/50C05F17/80C05G5/12C05F3/00C05F5/00C05F9/04C05F11/00Y02W30/40
Inventor 刘小光闫园园胡芳刘宗萌邓进超李慧玲李彩斌
Owner 肥城中持十方生物能源有限公司
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