Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Closed inter-bin circulating deoxidation nitrogen-rich insect prevention method and device

An insect-proof and nitrogen-enriched technology, which can be applied to devices, separation methods, chemical instruments and methods for catching or killing insects, etc.

Inactive Publication Date: 2020-08-14
WUHAN DONGCHANG STORAGE TECH
View PDF6 Cites 7 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0023] In order to solve the problem of too long time for mechanical nitrogen filling and pest control in the existing grain, Chinese herbal medicine and tobacco leaf storage process, the purpose of the present invention is to provide a method and device for circulating deoxygenation and nitrogen enrichment pest control between closed warehouses. The method and device provide A technology and process realization path for synchronously injecting a mixture of carbon dioxide and nitrogen into a closed warehouse. By mixing and injecting or relying on the original state of carbon dioxide gas accumulated in a closed warehouse, the carbon dioxide gas can be used to stimulate the pest valve and increase the breathing intensity of the pest. Nitrogen inhibits insects or kills insects; the invention provides a technical path for synchronously injecting a mixture of carbon dioxide and nitrogen into an airtight warehouse. When the equipment system is opened to perform mechanical deoxygenation and nitrogen supplementation in the airtight warehouse, the circulation can also be maintained. The carbon dioxide component in the gas is not removed, so that the carbon dioxide concentration inside the airtight chamber can be maintained stably

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Closed inter-bin circulating deoxidation nitrogen-rich insect prevention method and device
  • Closed inter-bin circulating deoxidation nitrogen-rich insect prevention method and device
  • Closed inter-bin circulating deoxidation nitrogen-rich insect prevention method and device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0069] Grain or tobacco leaves are stacked and stored after being packed in packaging bags or boxes. Grain can also be stored in bulk in the warehouse. For the grain, Chinese medicinal materials, tobacco leaves and other storage materials in the above storage mode, nylon with a thickness of 0.05-0.16mm is used. The composite plastic film is cut into a plastic tent according to the three-dimensional size formed by the stacking of the storage, and the storage is sealed and covered to form a closed space covered by a plastic tent (hereinafter referred to as "closed warehouse"). The surface and surroundings of the sealed warehouse shall be sealed, leak checked and repaired, and the airtightness of the closed warehouse shall be tested by the negative pressure detection method, so that the closed warehouse shall not be lower than the second-level airtightness standard; the above-mentioned closed warehouse may use various Metal, plastic, brick tiles, reinforced concrete are made into ...

Embodiment 2

[0078] It is basically the same as that of Example 1, except that: a deoxygenator 5B is used and a carbon dioxide remover 5C is connected in series as the oxygen separation and removal equipment 5, and the air is extracted from the airtight compartment 1 and the oxygen therein is separated The function removed; at this time, the inter-bin input gas pipeline 2 and the inter-bin gas discharge pipeline 7 are respectively connected with the gas outlet (exhaust nitrogen outlet) 3 and the raw material gas inlet 6 of the deaerator 5B to form a closed path, and the The air in the closed warehouse 1 is pumped out and blown into the adsorption tower equipped with solid adsorbents such as carbon molecular sieve inside the deaerator 5B. The air driven by power flows through the adsorption tower, relying on nitrogen, oxygen, carbon dioxide, water vapor, etc. Separation is achieved by different adsorption characteristics in the adsorbent. The saturated adsorbent is desorbed and regenerated t...

Embodiment 3

[0083] It is basically the same as Example 1, the difference is that a carbon dioxide remover 5C is used and a deoxygenator 5B is connected in series as the oxygen separation and removal equipment 5, and the air in the airtight compartment 1 is circulated and deoxidized and sent to the airtight chamber in coordination. The operation of injecting nitrogen and carbon dioxide mixed gas back into room 1; the input gas pipeline 2 between the warehouses and the gas discharge pipeline 7 between the warehouses are respectively connected with the exhaust outlet (exhaust port) 10 of the carbon dioxide removal machine 5C, the raw gas inlet ( Raw material gas inlet) 8 are connected to each other and form a closed passage, the carbon dioxide remover 5C extracts air from the closed compartment 1 and separates the carbon dioxide gas therein, and the generated carbon dioxide gas passes through the exhaust outlet (exhaust port) 10. The input gas pipeline 2 between the warehouses is fed back int...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

PropertyMeasurementUnit
The inside diameter ofaaaaaaaaaa
Login to View More

Abstract

The invention belongs to the technical field of storage pest air-conditioned control. The invention discloses a closed inter-bin circulating deoxidation nitrogen-rich insect prevention method and device. The method is characterized in that the technical mode of obtaining high-purity nitrogen from air and inputting the high-purity nitrogen into a closed bin for insect prevention in the prior art bymechanically inflating nitrogen is changed into the technical mode of separating and removing a single oxygen component from the air, mixed gas containing nitrogen and carbon dioxide is obtained, themixed gas is conveyed back to the sealed bin for modified atmosphere insect prevention, oxygen separation and removal equipment is used for extracting air from the sealed bin and separating and removing oxygen in the air, the separated oxygen is discharged into the environment outside the sealed bin, after oxygen is removed and separated, the residual nitrogen and carbon dioxide mixed gas is conveyed back to the sealed bin together, therefore, the concentration of carbon dioxide initially existing in the internal environment of the sealed bin and the concentration of carbon dioxide newly charged subsequently cannot be reduced due to removal and separation of the oxygen removal device, and carbon dioxide and nitrogen are synchronously and stably reserved in the closed bin and play a synergistic role in insect prevention of mechanical nitrogen charging.

Description

technical field [0001] The invention belongs to the technical field of controlled atmosphere prevention and control of stored pests, and in particular relates to a method and device for circulating deoxygenated nitrogen-enriched pests in closed warehouses. Background technique [0002] For a long time, the anti-insect technology of applying aluminum phosphide fumigation to store grain and tobacco leaves has played an important role in the storage safety of agricultural products in my country and the reduction of insect losses. On December 17, 2015, the Ministry of Environmental Protection issued the "Comprehensive List of Environmental Protection ( 2015 edition)", listed aluminum phosphide, chlorsulfuron and methimphos as high environmental risk products, and the trend of banning aluminum phosphide fumigants by policy has taken shape. An important means to replace aluminum phosphide fumigation for insect control is controlled atmosphere insect control , Nitrogen and carbon dio...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
IPC IPC(8): B01D53/047B01D53/22A01M13/00
CPCB01D53/047B01D53/228A01M13/00B01D2257/104B01D2257/504Y02C20/40
Inventor 李翊玮来振利
Owner WUHAN DONGCHANG STORAGE TECH
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com