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Biogas slurry irrigation and fertilization system and application thereof

A technology for irrigation and fertigation and biogas slurry, which is applied in the direction of liquid fertilizer adjustment system, application, fertilization device, etc., can solve the problems of misidentification by observers, unfavorable monitoring system wiring, and large gap in flow ratio, so as to prolong the working life and ensure Effective effect

Active Publication Date: 2022-04-29
INST OF ENVIRONMENT & SUSTAINABLE DEV IN AGRI CHINESE ACADEMY OF AGRI SCI +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] Most of the existing solutions are drip irrigation after mixing clean water and biogas slurry. Large, so the mixed liquid needs to flow for a long length at the mixing tube to mix evenly, so if the concentration of the mixed liquid is required, the sensor needs to be placed far away, which is not conducive to the wiring of the entire monitoring system. In addition Concentration or conductivity sensors need to be installed at the source of clean water and biogas slurry and at the final mixing place for real-time dynamic monitoring of the concentration. Therefore, if a sensor, especially the sensor at the mixed solution, fails, such as value locking will not change, it is easy for observers to mistakenly believe that the current ratio is normal and watering accidents will occur

Method used

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  • Biogas slurry irrigation and fertilization system and application thereof
  • Biogas slurry irrigation and fertilization system and application thereof
  • Biogas slurry irrigation and fertilization system and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0057] At the biogas station of Beijing Miyun Hiwabaile Energy Technology Co., Ltd., calculate the water and fertilizer ratio of the biogas slurry irrigation system according to the following steps, and combine the Figure 6 The flow chart of the application steps of the biogas slurry irrigation and fertilization system is illustrated.

[0058] In the S1 step, the fermented bovine biogas slurry from the biogas digester was first placed in the sampling test tube BS, and the local irrigation water was also placed in the sampling test tube W, and EC was performed on the two samples by having a hand-held conductivity pen. Determination of the value, the measured biogas slurry ECbs is 13.3ms / cm, and the irrigation water ECw is 0.75ms / cm;

[0059] In step S2, the appropriate corn conductivity is determined based on the internal setting selection, where the ECp value is set to 1.2ms / cm, and the formula for calculating the water-fertilizer ratio M is:

[0060] EC bs ·V bs +EC w · ...

Embodiment 2

[0069] If in the first embodiment, the conductivity value in the conductivity test module of the water and fertilizer mixture is 2ms / cm, compared with the set conductivity value of 1.2ms / cm in the actual scene crop, the absolute error is 66%, and the system automatically suspends, At this time, it is necessary to detect the conductivity sensor, etc.

[0070] The embodiment in the present invention is not a single example. The application of the biogas slurry irrigation and fertilization system effectively solves the problem that the ratio of biogas slurry to water and fertilizer is difficult and cannot be applied safely and efficiently. At the same time, the amount of application after the ratio of water and fertilizer is also clearly determined. It makes up for the lack of a universal water and fertilizer system and ratio irrigation calculation method in the current biogas slurry irrigation system. The system is highly implementable for agricultural workers and is of great sig...

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Abstract

The invention discloses a biogas slurry irrigation and fertilization system and application thereof, and relates to the technical field of biogas slurry irrigation. Comprising an irrigation main pipeline, the irrigation main pipeline is sequentially provided with an irrigation water conductivity collection module, a second flow meter and a water and fertilizer mixed liquid conductivity detection module in the flowing direction of irrigation water, and the irrigation main pipeline is further communicated with a biogas slurry conveying pipeline; the biogas slurry conveying pipeline is located between the second flow meter and the water and fertilizer mixed liquid conductivity detection module, and the tail end of the biogas slurry conveying pipeline is communicated with a biogas slurry pool. The problems that the biogas slurry is difficult in water and fertilizer proportioning and low in application efficiency are solved, meanwhile, the application amount and the application time are quantitatively determined, the blank that a current biogas slurry irrigation system lacks a universal clear water biogas slurry proportioning implementation system is made up, and the system is suitable for large-scale popularization and application. In addition, the working state of each conductivity sensor can be inspected, the service life of the conductivity sensor can be prolonged, and the method has important significance on efficient returning of the biogas slurry to the field and large-area popularization.

Description

technical field [0001] The invention relates to the technical field of biogas slurry irrigation, in particular to a biogas slurry irrigation and fertilization system and its application. Background technique [0002] In recent years, waste resources have been efficiently utilized in biogas projects, such as manure, straw, and meal waste, but there is still a huge amount of residual product—biogas slurry after fermentation in biogas projects. Relevant data show that the daily biogas slurry of small and medium-sized farms It can reach 500 cubic meters, and direct discharge will still pollute the soil and the atmosphere. [0003] At the same time, as a kind of organic liquid fertilizer, biogas slurry is especially rich in nitrogen fertilizer. Usually, 1 cubic meter of biogas slurry contains 1-6Kg of pure nitrogen, which can be the best choice for fertilizer. Therefore, some scholars have proposed a planting and breeding cycle model, using biogas slurry as an organic liquid fer...

Claims

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Application Information

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IPC IPC(8): A01G25/16A01C3/00A01C23/00
CPCA01G25/16A01C3/00A01C23/007A01C23/002A01C23/042
Inventor 王建东王海涛王绍新仇学峰王传娟
Owner INST OF ENVIRONMENT & SUSTAINABLE DEV IN AGRI CHINESE ACADEMY OF AGRI SCI