CN103749421A - High-low temperature cycling storage deinsectization method and device thereof - Google Patents
High-low temperature cycling storage deinsectization method and device thereof Download PDFInfo
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- CN103749421A CN103749421A CN201310730541.5A CN201310730541A CN103749421A CN 103749421 A CN103749421 A CN 103749421A CN 201310730541 A CN201310730541 A CN 201310730541A CN 103749421 A CN103749421 A CN 103749421A
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Abstract
The invention discloses a high-low temperature cycling storage deinsectization method and a device thereof. The high-low temperature cycling storage deinsectization method includes: filling low-temperature gas to a vessel after filling high-temperature gas for certain time, cycling for several times, wherein the gas filling time is shortened at each time. The high-low temperature cycling storage deinsectization device comprises a sealed vessel which is formed with two inlets and two outlets, one inlet of the vessel is connected with a high-temperature gas intake tube while the other inlet is connected with an exhaust tube, one outlet of the vessel is connected with a pressure relief tube while the other outlet is connected with a gas suction tube, and the gas suction tube is connected with the exhaust tube through a cooling system. The high-low temperature cycling storage deinsectization method is the quick and effective deinsectization method for the stored feed at present, and the high-low temperature cycling storage deinsectization method and the device thereof are capable of preventing insects thoroughly, do not cause pollution, have good effect, and provide the reliable subsequent quality assurance for the safe storage and circulation of food.
Description
Technical field
The present invention relates to a kind of high low temperature alternation method storage deinsectization method and device thereof, be applicable to large warehoused deinsectization.
Background technology
Grain is because the resting period is long or other extraneous factors there will be insect pest, for storage, processing and the sale of grain, brings great impact.At existing large-scale cereal machining center, owing to can depositing a period of time after grain processing, be diverted to again an added sale of large supermarket, within the overstocked time period, owing to processing rear adult rate, uprise, or the reason such as miscarriage can be brought out new worm, cause being sent to while finding that there is worm behind supermarket in sales process, must, to whole shelf and the cleaning of supporting warehoused cargo, therefore bring great man power and material's waste.Therefore can realize a kind of effectively thorough insect-prevention method, when can improve the people's quality of life, also for reducing grain, in the expense of intermediate links, provide safeguard.Existing deinsectization and insect-prevention method have a lot, comprise chemical control method and physical control, wherein chemical control method has certain harm to the person, therefore be not suitable for the popularization of grain insect prevention, and physical method has the advantage of secure context compared with chemical method, existing main grain insect pest has Ptinus japonicus, pea weevil, saw-toothed grain beetle, mite class, rice weevil, confused flour beetle, long angle ostomatid, tobacco is first-class, these insect pests are inconsistent to the adaptive capacity of temperature, such as Ptinus japonicus, pea weevil, saw-toothed grain beetle and mite class are extremely strong to tolerance to low temperature, and rice weevil, confused flour beetle, the anti-low temperature ability such as long angle ostomatid, lasioderma serricorne, saw-toothed grain beetle just can be dead for a long time the temperature of 50 ℃.The method of preventing and treating major part corresponding to this insect pest is to adopt physical control, comprise high-temperature disinsection heating method and low-temperature insecticidal method, existing anti-Disinsection method can only be processed the insect pest of a certain class, control face is wide not and effect is thorough not, and this single method is difficult to comprehensively insect pest be destroyed completely.
Summary of the invention:
The object of the invention is to adopt a kind of high and low temperature alternative method to carry out closed processes to grain for the deficiencies in the prior art and realize anti-deinsectization, realize high low temperature alternation method storage deinsectization method and the device thereof of thorough, nuisanceless, pollution-free pest control comprehensively.
A high low temperature alternation method storage deinsectization method, comprises the steps:
A, grain is packed in the container of sealing, and after making grain be filled in container, keep the remaining certain space in grain upper surface and container top, first to passing into high-temperature gas in container, when temperature reaches 60 ℃-65 ℃ in container, keep temperature and pressure in container 3 minutes～5 minutes, then pressure release is to normal pressure;
B, then in container, pass into cryogenic gas, the temperature in container reaches the temperature and pressure that keeps when-8 degree～-10 are spent in container 5 minutes～10 minutes, then stops cooling;
C, again to passing into high-temperature gas in container, when temperature reaches 60 ℃-65 ℃ in container, keep temperature and pressure in container 1 minute, then pressure release is to normal pressure;
D, finally again to passing into cryogenic gas in container, until the temperature in container, reach after-8 ℃～～-10 ℃, stop cooling, treat in container that temperature rises to normal temperature.
The time interval between described step a and step b is 8～10 minutes.
Described grain keeps the distance of grain upper surface and the remaining at least 10cm in container top after being filled in container.
In described step a and step c, the pressure release time is 8～10 minutes.
A kind of high low temperature alternation method storage delousing plant, the container that comprises sealing, the container of described sealing is provided with an openable seal cover of conveniently putting into grain, described container is provided with two imports and two outlets, an import of described container is connected with high-temperature gas air inlet pipe, another import is connected with blast pipe, an outlet of described container is connected with relief tube, another outlet is connected with air intake duct, described air intake duct is connected with described blast pipe by cooling system, on described high-temperature gas air inlet pipe, blast pipe, relief tube and air intake duct, valve is all installed.
Described cooling system comprises compressor, condenser, evaporator and air exhauster, and described evaporator is arranged on described air intake duct, and the air inlet of described air exhauster is connected with described blast pipe with described air intake duct respectively with gas outlet.
Described blast pipe is arranged on the end in described container filter screen is installed.
On described air intake duct, on the pipeline between evaporator and air ejector, be provided with condensate water discharging valve.
Because existing insect pest is variant to the adaptive capacity of high temperature and low temperature, therefore single high temperature or low temperature cannot be realized comprehensive deinsectization, for existing insect pest, the adaptive capacity analysis of high low temperature is found, most of just large to the patience of high temperature or low temperature, and the worm that the applicable high low temperature of minority coexists can not survive in temperature changes continuously, therefore the device that adopts this method and utilize this method to make, high and low temperature alternative can be realized, thereby thorough, nuisanceless, pollution-free pest control comprehensively can be realized; Specifically the present invention can realize advantage below:
(1) the present invention is by realizing high and low temperature alternative, can fast and effectively insect pest be disposed to (no matter being that the worm that high temperature or low temperature or high low temperature coexist all can effectively be processed);
(2) high-temperature gas is xeothermic gas (moisture-free), when therefore can guarantee heating, does not increase the humidity in container, does not affect follow-up grain and preserves quality.
(3) this device low temperature treatment adopts external condensation cooling processing method, can avoid the condensed water substitution silo forming because of cooling, and this device arranges condensate water discharging valve on the pipeline between air intake duct evaporator and air exhauster, solved the problem of in-tube condensation water, prevented that in-tube condensation water from entering in container.
(4) when this method high and low temperature alternative is processed, between two-wheeled processing, interval time is short, by the high low temperature treatment of fast pace, improves deinsectization effect; High low temperature of the first round length of holding time, second takes turns high low temperature holds time shortly, switches political loyalty to play when facture can be accomplished thorough desinsection and reduces the damage to grain quality as far as possible, has improved treatment effeciency, reduces operating cost.
In sum, the present invention is a kind of anti-deinsectization method fast and effectively to current stored grain, and anti-deinsectization is thoroughly comprehensive, pollution-free, effective, for safe storage and the circulation of grain provides reliable subsequent quality guarantee.
Accompanying drawing explanation
Fig. 1 is the structural representation of apparatus of the present invention.
Embodiment
Below high low temperature alternation method storage deinsectization method of the present invention and device are described in further detail.
As shown in Figure 1, high low temperature alternation method storage delousing plant, the container 1 that comprises sealing, described container 1 is provided with seal cover, thus seal cover can be opened and facilitates putting into of grain, described container 1 is provided with two imports and two outlets, an import of described container is connected with high-temperature gas air inlet pipe 2, and another import is connected with blast pipe 5, and an outlet of described container 1 is connected with relief tube 3, another outlet is connected with air intake duct 4, and described air intake duct 4 is connected with described blast pipe 5 by cooling system.Described cooling system comprises compressor 7, condenser 8, evaporator 9 and air exhauster 10, and described evaporator 9 is arranged on described air intake duct 4, and the air inlet of described air exhauster 10 is connected with described blast pipe 5 with described air intake duct 4 respectively with gas outlet.On described high-temperature gas air inlet pipe, blast pipe, relief tube and air intake duct, valve 6 is all installed, described blast pipe 5 is arranged on filter screen 11 is installed on the end in described container, prevent the outlet that the interior grain of container 1 stops up blast pipe 5, on described air intake duct 4, on the pipeline between evaporator 9 and air ejector 10, be provided with condensate water discharging valve 12, solved the problem of in-tube condensation water, prevented that in-tube condensation water from entering in container.
As shown in the figure, grain is packed in container 1, the first step is opened the valve switch of high-temperature gas air inlet pipe 2, in container, be filled with high-temperature gas, when the interior temperature of container 1 arrives 60 ℃ (selection of this temperature is mainly that the optimum temperature of deinsectization kind is as required selected), maintain 3 minutes (selection of this time is to select according to the size of container, and in the scope that can tolerate at grain, prevents the performance of excessive damage grain own); Second step is closed high-temperature gas air inlet pipe 2 valve switch, and the valve of opening relief tube 3 carries out pressure release to atmospheric pressure state, then closes the valve of relief tube 3; The 3rd step is by the valve open of air intake duct 4 and blast pipe 5, start air exhauster 10 and refrigeration compressor 7, air in container 1 is carried out to circularly cooling, when container 1 interior environment temperature reaches-10 ℃, (selection of this temperature is mainly that the optimum temperature of deinsectization kind is as required selected), keeps this temperature 5 minutes; The 4th step, stop air exhauster and compressor, by the valve closing of air intake duct 4 and blast pipe 5, then the valve of opening high-temperature gas air inlet pipe 2 adds high-temperature gas in container, when temperature reaches 60 ℃, close immediately again the valve of high-temperature gas air inlet pipe 2, open the valve of relief tube 3, carry out pressure release; The 5th step, when again carrying out kind of refrigeration cycle and reaching-10 ℃ to container 1 interior environment temperature, can shut down, and treats that in container, temperature rises to normal temperature, completes the course of work of whole deinsectization, and above-mentioned high-temperature gas and cryogenic gas are the not gas of water content.
Claims (8)
1. a high low temperature alternation method storage deinsectization method, is characterized in that, comprises the steps:
A, grain is packed in the container of sealing, and after making grain be filled in container, keep the remaining certain space in grain upper surface and container top, first to passing into high-temperature gas in container, when temperature reaches 60 ℃-65 ℃ in container, keep temperature and pressure in container 3 minutes～5 minutes, then pressure release is to normal pressure;
B, then in container, pass into cryogenic gas, the temperature in container reaches the temperature and pressure that keeps when-8 degree～-10 are spent in container 5 minutes～10 minutes, then stops cooling;
C, again to passing into high-temperature gas in container, when temperature reaches 60 ℃-65 ℃ in container, keep temperature and pressure in container 1 minute, then pressure release is to normal pressure;
D, finally again to passing into cryogenic gas in container, until the temperature in container, reach after-8 ℃～～-10 ℃, stop cooling, treat in container that temperature rises to normal temperature.
2. high low temperature alternation method storage deinsectization method according to claim 1, is characterized in that, the time interval between described step a and step b is 8～10 minutes.
3. high low temperature alternation method storage deinsectization method according to claim 1, is characterized in that, described grain keeps the distance of grain upper surface and the remaining at least 10cm in container top after being filled in container.
4. high low temperature alternation method storage deinsectization method according to claim 1, is characterized in that, in described step a and step c, the pressure release time is 8～10 minutes.
5. one kind high low temperature alternation method storage delousing plant, for high low temperature alternation method storage deinsectization method described in claim 1 to 4, it is characterized in that, the container that comprises sealing, the container of described sealing is provided with an openable seal cover of conveniently putting into grain, described container is provided with two imports and two outlets, an import of described container is connected with high-temperature gas air inlet pipe, another import is connected with blast pipe, an outlet of described container is connected with relief tube, another outlet is connected with air intake duct, described air intake duct is connected with described blast pipe by cooling system, described high-temperature gas air inlet pipe, blast pipe, valve is all installed on relief tube and air intake duct.
6. high low temperature alternation method storage delousing plant according to claim 5, it is characterized in that, described cooling system comprises compressor, condenser, evaporator and air exhauster, described evaporator is arranged on described air intake duct, and the air inlet of described air exhauster is connected with described blast pipe with described air intake duct respectively with gas outlet.
7. high low temperature alternation method storage delousing plant according to claim 5, is characterized in that, described blast pipe is arranged in the outlet in described container filter screen is installed.
8. high low temperature alternation method storage delousing plant according to claim 5, is characterized in that, is provided with condensate water discharging valve on described air intake duct on the pipeline between evaporator and air ejector.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201310730541.5A CN103749421B (en) | 2013-12-26 | 2013-12-26 | High/low temperature alternation method storage delousing plant |
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| CN201310730541.5A CN103749421B (en) | 2013-12-26 | 2013-12-26 | High/low temperature alternation method storage delousing plant |
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| CN103749421A true CN103749421A (en) | 2014-04-30 |
| CN103749421B CN103749421B (en) | 2015-11-04 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109197847A (en) * | 2018-08-21 | 2019-01-15 | 戴军 | A kind of low-temperature frozen melts deinsectization method |
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| WO2000064287A1 (en) * | 1999-04-27 | 2000-11-02 | Sinterkil Ab | Method for killing insects |
| JP2002360149A (en) * | 2001-04-06 | 2002-12-17 | Mukai Chinmido:Kk | Low-temperature insecticidal method of food pest mixed in stored crop or food material |
| CN101965870A (en) * | 2010-09-30 | 2011-02-09 | 王世清 | Low-temperature grain storage facility with automatic circulating heat pipe set |
| CN102613164A (en) * | 2012-04-01 | 2012-08-01 | 常熟南师大发展研究院有限公司 | Heating method for killing underground insects |
| CN102950041A (en) * | 2012-11-08 | 2013-03-06 | 南昌大学 | Equipment for tempering brown rice by alternative processing of saturated steam and air |
| WO2013129058A1 (en) * | 2012-02-28 | 2013-09-06 | 株式会社サタケ | Device and method for exterminating husk insect pests |
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2013
- 2013-12-26 CN CN201310730541.5A patent/CN103749421B/en not_active Expired - Fee Related
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2000064287A1 (en) * | 1999-04-27 | 2000-11-02 | Sinterkil Ab | Method for killing insects |
| JP2002360149A (en) * | 2001-04-06 | 2002-12-17 | Mukai Chinmido:Kk | Low-temperature insecticidal method of food pest mixed in stored crop or food material |
| CN101965870A (en) * | 2010-09-30 | 2011-02-09 | 王世清 | Low-temperature grain storage facility with automatic circulating heat pipe set |
| WO2013129058A1 (en) * | 2012-02-28 | 2013-09-06 | 株式会社サタケ | Device and method for exterminating husk insect pests |
| CN102613164A (en) * | 2012-04-01 | 2012-08-01 | 常熟南师大发展研究院有限公司 | Heating method for killing underground insects |
| CN102950041A (en) * | 2012-11-08 | 2013-03-06 | 南昌大学 | Equipment for tempering brown rice by alternative processing of saturated steam and air |
Non-Patent Citations (1)
| Title |
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| 杨兆民: "我国农业生产中的物理治虫技术现状", 《江苏农业科学》, no. 1, 28 February 2011 (2011-02-28) * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109197847A (en) * | 2018-08-21 | 2019-01-15 | 戴军 | A kind of low-temperature frozen melts deinsectization method |
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