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Control system of organic-fertilizer aerobic fermentation

A control system and aerobic fermentation technology, applied to the preparation of organic fertilizers, organic fertilizers, fertilizer treatment control, etc., can solve the problems that cannot fully meet the requirements of organic fertilizer fermentation production process, and achieve simple design, high degree of automation, and low cost Effect

Inactive Publication Date: 2018-10-16
黑龙江吉纳森生物工程股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] At present, there are not many control systems for organic fertilizer fermentation, and most of them are systems or structures for temperature control, which cannot fully meet the production process of organic fertilizer fermentation.

Method used

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  • Control system of organic-fertilizer aerobic fermentation

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0032] Take the application of this system in the production of organic fertilizer by aerobic fermentation of cow dung as an example:

[0033] Through three temperature acquisition tasks, the control system uses the DS18B20 temperature probe to collect the temperature values ​​of three points in the environment in real time, and obtains the overall temperature in the environment through weighted calculations.

[0034] In the stage of temperature rise control, the internal circulation fan keeps running, and the task of the external circulation fan is not performed until the temperature of the stack rises above 40°C. This stage takes 3 days.

[0035]In the normal fermentation control stage, when the temperature of the pile reaches above 40°C, it is regarded as the fermentation process in the high temperature period. At this stage, the electric valve is used to control the increase of the exhaust air volume, while keeping the pressure inside the pile at 13-15 Kpa. , increase the ...

Embodiment 2

[0038] Take the application of this system in the production of organic fertilizer by aerobic fermentation of pig manure as an example:

[0039] Through 3 temperature acquisition tasks, the control system uses the KTR-18b20 temperature probe to collect the temperature values ​​of 3 points in the environment in real time, and obtains the overall temperature in the environment through weighted calculations.

[0040] In the temperature rise control stage, the internal circulation fan is kept running, and the external circulation fan task is not performed until the temperature of the stack rises above 38°C. This stage takes 3 days.

[0041] In the normal fermentation control stage, when the temperature of the pile body reaches above 40°C, it is regarded as entering the fermentation process of the high temperature period. At this stage, the electric valve is used to control the increase of the exhaust air volume, while keeping the pressure inside the pile at 15 Kpa, increasing Larg...

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Abstract

The invention belongs to the technical field of circuit control, and particularly relates to an implementation method for a control system of organic-fertilizer aerobic fermentation. The control system comprises the following four parts: a datum collecting and monitoring unit, a datum processing and storing unit, an on-site adjustment unit and a central control computer; the datum processing and storing unit is a PLC control system, the datum collecting and monitoring unit includes a temperature transmitter, a pressure transmitter and a hygrometer, and the on-site adjustment unit is composed of a pressure adjustment device, an electric air-discharging valve and a humidifying device. According to the control system provided by the invention, a central controller, namely the PLC control system, monitors the aerobic fermentation process of an organic fertilizer in real time according to parameters such as temperature, pressure and humidity fed back by an online monitoring instrument, so that precise and automatic control of the aerobic fermentation process of the organic fertilizer is realized; and under the premise that no over-stimulation exists in the natural growth characteristicsof microorganisms, a suitable growth environment is provided for the microorganisms as much as possible, fermentation ability of the microorganisms is fully played, and therefore high-quality fermentation products are obtained.

Description

technical field [0001] The invention belongs to the technical field of circuit control, in particular to a method for realizing an organic fertilizer aerobic fermentation control system. Background technique [0002] Organic fertilizers refer to slow-acting fertilizers containing a large amount of biomass, animal and plant residues, excreta, etc., which are carbon-containing materials whose main function is to provide plant nutrition when applied to the soil. Organic fertilizers are rich in a large number of beneficial substances, including: a variety of organic acids, peptides, etc., which are rich in organic nutrients and rich in nitrogen, phosphorus, and potassium, which are necessary for plant growth. Crops provide comprehensive nutrition and have a long fertilizer effect, which can increase and renew soil organic matter, promote microbial reproduction, improve soil physical and chemical properties and biological activity, and are the main nutrients for green plant growt...

Claims

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Application Information

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IPC IPC(8): C05F17/02
CPCC05F17/90C05F17/70Y02W30/40
Inventor 盖忠辉蒋立民其他发明人请求不公开姓名
Owner 黑龙江吉纳森生物工程股份有限公司