Circular inflation modified atmosphere grain storage device and method using device

A system device and air-conditioning technology, which is applied in the ring-filled air-conditioning grain storage system device and the field of ring-filling air-conditioning grain storage, can solve the problems of high energy consumption, ineffective effect, and low efficiency, and achieve obvious insecticidal effect, The effect of saving nitrogen filling time and improving work efficiency

Inactive Publication Date: 2013-02-06
ACAD OF STATE GRAIN ADMINISTRATION +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0010] However, the existing deoxygenation methods have the defects

Method used

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  • Circular inflation modified atmosphere grain storage device and method using device
  • Circular inflation modified atmosphere grain storage device and method using device
  • Circular inflation modified atmosphere grain storage device and method using device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0047] see figure 1 As shown, a ring-filled atmosphere-controlled grain storage system device of the present invention includes a nitrogen-filling system, a nitrogen-making circulation system, a granary system and an automatic control system;

[0048] see figure 1 As shown, the nitrogen filling system includes a nitrogen filling and nitrogen making unit 100; the nitrogen outlet end of the nitrogen filling and nitrogen making unit 100 is connected to the inlet of the grain storage ventilation duct of the granary through a nitrogen filling pipeline 303, and the nitrogen filling pipeline 303 is provided with an intake valve 501; the main function of the nitrogen filling system is to fill the closed granary with nitrogen;

[0049] see figure 1 As shown, the circulation system includes a nitrogen-making circulation unit 200 and a circulation pipeline; the circulation pipeline includes a suction pipeline 201 in the granary, a circulation main pipe 202 and a branch pipe 203 outside...

Embodiment 2

[0061] see Figure 5 As shown, embodiment 1 is repeated, the only difference is that the pressure sensor 403 is a rangefinder, and the rangefinder is arranged between the grain surface film airbag 302 and the top of the granary. The working principle is: use the distance between the top of the airbag 302 and the top of the granary to reflect the change of the pressure in the airbag; the distance meter is installed on the top of the granary to measure the distance between the highest part of the airbag and the top of the granary at any time. When the distance reaches the set value, It can be transmitted to the computer, analyze the situation, release information, and control the nitrogen-filling and nitrogen-generating unit and the nitrogen-generating circulation unit to implement the ring-filling and oxygen-reducing operation.

Embodiment 3

[0063] A method of using the ring-filled modified atmosphere grain storage system device of the above-mentioned embodiment 1 to carry out a method for ring-filled modified atmosphere grain storage, comprising the following steps:

[0064] 1) Start the nitrogen-filling and nitrogen-generating unit 100 through the nitrogen-filling and nitrogen-generating unit control module 401 of the automatic control system. At this time, valves 501, 503 and 504 are opened, valves 502 and 505 are closed, and the nitrogen gas of the nitrogen-charging and nitrogen-generating unit 100 enters the grain The grain storage ventilation duct in the pile fills the space between the grain surface film airbag 302 and the surface of the grain pile 301 with nitrogen to reduce oxygen; fill the nitrogen until the nitrogen concentration in the air outlet pipe 305 is ≥ 85% by volume, and then close the nitrogen-filling and nitrogen-generating unit 100; preferably, the pressure in the grain surface film airbag 30...

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Abstract

The invention discloses circular inflation modified atmosphere grain storage device and method using the device. The device comprises a nitrogen inflation system, a nitrogen preparation circulation system, a grain barn system and an automatic control system. The nitrogen inflation system comprises a nitrogen inflation/preparation unit. The circulation system comprises a nitrogen preparation circulation unit and a circulation pipeline. The grain barn system comprises a barn body, a grain pile, a grain face film gasbag disposed above the grain pile, and a grain storage ventilation pipeline, a nitrogen inflation pipeline, a circular nitrogen inflation pipeline and a gas outlet pipe disposed in the grain pile. The automatic control system comprises a central processor, a nitrogen inflation/preparation unit control module, a nitrogen preparation circulation unit control module, a pressure sensor, an oxygen concentration sensor, and a grain pile temperature/humidity sensor. By cooperative operation of the nitrogen inflation system and the circulation system, the device and the method greatly improve working efficiency, save energy consumption, guarantee grain storage quality, and achieve significant pest killing effect.

Description

[0001] technical field [0002] The invention relates to the technical field of grain storage, in particular to a ring-filled controlled-atmosphere grain storage system device and a ring-filled controlled-atmosphere grain storage method using the device. Background technique [0003] During the storage process, grains are often infected with insect pests and the quality of grains deteriorates, resulting in loss or quality degradation of grains that are not suitable for consumption. At present, in order to ensure the safety of grain storage, most grain storage depots use phosphine fumigation technology to kill insects on grain piles. However, the use of phosphine to fumigate and kill insects will not only leave chemical substances in the grain, but also cause harm to the health of the operator of the fumigation and insecticide. Furthermore, the long-term use of phosphine fumigation to kill insects will lead to resistance of stored grain insect pests. [0004] With the cont...

Claims

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Application Information

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IPC IPC(8): A01F25/14A01F25/16A23B9/20
CPCY02A40/51Y02P60/85
Inventor 李福君俞旭龙曹阳吴献民赵会义王晋孙李燕羽李涛张洪清吴红军
Owner ACAD OF STATE GRAIN ADMINISTRATION
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