CN106615089A - Ozone recirculation fumigation method in grain depots - Google Patents
Ozone recirculation fumigation method in grain depots Download PDFInfo
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- CN106615089A CN106615089A CN201611236971.1A CN201611236971A CN106615089A CN 106615089 A CN106615089 A CN 106615089A CN 201611236971 A CN201611236971 A CN 201611236971A CN 106615089 A CN106615089 A CN 106615089A
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- ozone
- grain
- grain depot
- recirculation fumigation
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- A—HUMAN NECESSITIES
- A23—FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
- A23B—PRESERVING, e.g. BY CANNING, MEAT, FISH, EGGS, FRUIT, VEGETABLES, EDIBLE SEEDS; CHEMICAL RIPENING OF FRUIT OR VEGETABLES; THE PRESERVED, RIPENED, OR CANNED PRODUCTS
- A23B9/00—Preservation of edible seeds, e.g. cereals
- A23B9/16—Preserving with chemicals
- A23B9/18—Preserving with chemicals in the form of gases, e.g. fumigation; Compositions or apparatus therefor
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- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
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- Food Science & Technology (AREA)
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Abstract
The invention discloses an ozone recirculation fumigation method in a grain depot. The ozone recirculation fumigation method in the grain depot comprises the following steps: carrying out sterilization treatment on an empty warehouse by using ozone after stored grain is out of storage and new grain has not yet been put in storage; carrying out treatment by using an ozone cycle system after the new grain is put in storage, lowering the temperature of the grain by using a cooling device, and carrying out ozone recirculation fumigation once every six months, wherein the ozone concentration is 50-80mg/L and the processing time is 5-7 days; and then, performing point sampling on the samples in the grain depot after the completion of the treatment, and carrying out checking. According to the method adopted by the invention, the ozone is provided by utilizing an ozone generator in the grain depot and pumped into the grain depot by using a ventilation ground-cage arranged on the ground of the grain depot so as to realize ozone recirculation fumigation treatment on the grain in the grain depot, so that microorganisms, mildews and pests in the grain depot can be completely killed. During the treatment processes, the ozone is reduced to oxygen, and no residue is left, so that no change on grain qualities is caused. The ozone recirculation fumigation method in the grain depot is harmless to the human body, safe to use, and capable of reducing temperature and humidity of the grain piles.
Description
Technical field
The present invention relates to a kind of ozone generating-device technical field, and in particular to the side of ozone recirculation fumigation in a kind of grain depot
Method.
Background technology
Grain is, as national strategy material stock, to store security, always by country's great attention, ensures grain peace
Complete is eternal problem for country, whenever all can not be loosened.
In order to reduce, grain temperature rise is gone mouldy, insect pest is spread unchecked, and takes a series of science grain storages, medicine recirculation fumigation desinsection etc. many
The measure of kind, is also the failure to thoroughly solve various problems present in foodstuff preservation.
High temperature, high humidity and rainy external environment condition are run into, microorganism, bacterium, spore, mite class or mould spread, also
It is to easily cause grain to go mouldy rotten, insect pest outburst etc..
In the Testing index of food security, the index inspection of various harmful toxins contents such as aflatoxins has been gradually added
Survey, due to during food storage, being affected by many factors such as temperature, humidity and moisture, bacterium, fungi and mould etc.
Breeding easily causes the accumulation of the harmful toxins such as aspergillus flavus, aspergillus versicolor, staphylococcus aureus, and processing industry cannot be removed
These toxin, so as to affect food security, and then affect the health of the mankind.
At present.The medicine circulation fumigating system that grain depot is used, using chemical fumigant, such as aluminum phosphate, DDVP, bromomethane
Kill off the insect pests Deng insecticide；Long-Time Service chemical fumigant, the drug resistance of insect, the resistance to the action of a drug can be increasingly stronger, the use of medicine
Amount increasing, the stifling cycle also can be increasingly longer, and grain depot medicine in China cannot be thorough by insect
Kill, it has to develop and killed off the insect pests using the bigger medicine of toxicity, residual of the pesticide residues on grain is increasingly
Many, many insects have generated the resistance to the action of a drug, and the health and lives safety of the mankind is had influence on eventually.
The content of the invention
It is an object of the invention to provide in a kind of grain depot ozone recirculation fumigation method, replaced with the method for ozone recirculation fumigation
Traditional medicine recirculation fumigation method, solve in above-mentioned prior art problem one or more.
The method of ozone recirculation fumigation in a kind of grain depot of the invention, in a closed grain depot circulation airduct is provided with
Road, the circulation wind pipeline is connected to ozone circulatory flow fumigating device, ozone is sent in the ozone circulatory flow fumigating device, using smelly
Oxygen is come to carrying out suffocating treatment in grain depot；The ozone circulatory flow fumigating device includes cooling device, ozone generating-device and blower fan,
Cooling device is used to carry out air cooling process, and ozone generating-device is used to produce ozone, and blower fan is used for compressed air and leads to
Wind process；
The method and step of ozone recirculation fumigation is as follows：After grain outbound and before new grain warehouse-in hole capital after selling all securities is disappeared by ozone
Poison is processed；
Processed using Ozone recycling system after new grain warehouse-in, and grain temperature is reduced by cooling device, every half a year is to grain
Storehouse carries out an ozone recirculation fumigation；
Wherein, ozone concentration be 50～80mg/L, process time be 5～7 days, process terminate after to sample spot skewer in grain depot
Take and detected.
The method of ozone recirculation fumigation, is carried in grain depot using ozone generating-device in a kind of grain depot of the present invention
For ozone, ozone is pumped into grain depot in the ventilation cage arranged by grain depot ground, ozone ring is carried out to the grain in grain depot
Stream suffocating treatment, can thoroughly kill microorganism in grain depot, mould and insect, and in processing procedure, ozone can be reduced into oxygen, nothing
Any residual, will not cause to change to grain quality, harmless, using safety, and can reduce the temperature and humidity of grain heap.
In some embodiments, the circulation wind pipeline includes being located at some ventilation cages on grain depot ground and connecting
Ventilation cage is flexible coupling with the air inlet of ozone circulatory flow fumigating device.By circulation wind pipeline, negative pressure is formed in pipeline opening, be easy to
Ozone is transported in ventilation cage, so as to carry out ozone recirculation fumigation.
In some embodiments, the ozone circulatory flow fumigating device is connected to circulation wind by way of serial or parallel connection
On pipeline.The quantity and mounting means of ozone circulatory flow fumigating device are arranged according to the space of grain depot.
In some embodiments, the ozone circulatory flow fumigating device also includes shell, the air inlet on the shell
Mouth and gas outlet and filter, the filter, cooling device, ozone generating-device and blower fan may be contained within the air inlet
Between mouth and the gas outlet, the filter and the cooling device are arranged in a crossed manner, and the ozone generating-device includes smelly
Oxygen generating assembly and ozone driving power supply, the ozone driving power supply is divided into the ozone generating assembly both sides.Can thoroughly kill
Go out microorganism in grain depot, mould and insect, in processing procedure, ozone can be reduced into oxygen, without any residual, will not be to grain
Quality causes to change, using safer.
In some embodiments, the filter includes primarily efficient filter device, medium air filtration device and high efficiency filter
Device, the medium air filtration device is located between the primarily efficient filter device and the effective filter.Multiple filtration air
In impurity can preferably carry out the generation of ozone.
In some embodiments, the cooling device is water-cooling apparatus, including water cooling pipeline, the water composite cooling pipe
Road is through located at the ozone generating-device.Use cost can be reduced using water cooling, and is adapted to extensive grain depot to use.
In some embodiments, the ozone generating-device is located at the effective filter downstream.Clean air
Ozone generating process can preferably be carried out.
In some embodiments, ozone concentration displaying alarm and warning sign are installed outside grain depot storehouse, treat ozone ring
After flowing stifling end, ozone generating-device is closed, after waiting 1～2 hour, being detected with detector can after ozone concentration in grain depot
Into.Installing ozone concentration displaying alarm and warning sign can protect staff to enter by mistake through in the high grain depot of ozone concentration,
Avoid causing personal injury.
Description of the drawings
Fig. 1 illustrates for the plan structure of ozone circulatory flow fumigating device in a kind of grain depot of one embodiment of the present invention
Figure；
Fig. 2 is a kind of structural representation of ozone circulatory flow fumigating device of one embodiment of the present invention；
Fig. 3 is silo surface sample point schematic diagram；
Fig. 4 is grain layer sample point position view.
Specific embodiment
With reference to Figure of description, the present invention is described in more detail.
Ozone (O3) higher oxide is also called, it is oxygen (O3) allotrope, at normal temperatures, it is that one kind has spy
The light blue gas of different stink, ozone is mainly distributed in the Sudden warming in stratosphere of 10～50km height, and maximum is in 20～30km
Between height；' at normal temperatures and pressures, less stable can voluntarily be decomposed into oxygen.Ozone has the taste of green grass, and suction is few
Amount is beneficial to human body, and suction is excessive certain harm to health, and non-combustible, pure substance, oxygen can be changed into smelly by electric shock
Oxygen.
As shown in figure 1, in a kind of grain depot ozone recirculation fumigation method, be provided with circulation wind pipeline in a closed grain depot
60, circulation wind pipeline 60 includes being installed on some ventilation cages 61 on grain depot ground and connection ventilation cage 61 and ozone circulation
The air inlet of device for fumigation 10 is flexible coupling 62, and divulge information per bar be arranged in parallel between cage 61, by circulation wind pipeline 60, in pipe
Road junction forms negative pressure, is easy to ozone be transported in ventilation cage 61, so as to carry out ozone recirculation fumigation.
Circulation wind pipeline 60 is connected to ozone circulatory flow fumigating device 10, and ozone circulatory flow fumigating device 10 passes through serial or parallel connection
Mode be connected to the quantity that arranges ozone circulatory flow fumigating device 10 on circulation wind pipeline 60 according to the space of grain depot and by
According to mode；Ozone is sent in ozone circulatory flow fumigating device 10, using ozone come to carrying out suffocating treatment in grain depot；Ozone circulation is smoked
Steaming device 10 includes cooling device 3, ozone generating-device 4 and blower fan 5, and cooling device 3 is used to carry out air cooling process, smelly
Oxygengenerating plant 4 is used to produce ozone, and blower fan 5 is used for compressed air and ventilation process；Ozone generating-device 4 is big using Beijing gold
Ten thousand Xiang Environmental Protection Technology Co., Ltd production Modular plate-type ozone generating-device, ozone generating-device 4 include discharging chamber, one
Individual discharging chamber is made up of 24 modular units, and class produces the ozone of 2～3kg within one hour.
The method and step of ozone recirculation fumigation is as follows：After grain outbound and before new grain warehouse-in hole capital after selling all securities is disappeared by ozone
Poison is processed；
Processed using Ozone recycling system after new grain warehouse-in, and grain temperature is reduced by cooling device 3, every half a year is to grain
Storehouse carries out an ozone recirculation fumigation；
Wherein, ozone concentration be 50～80mg/L, process time be 5～7 days, process terminate after to sample spot skewer in grain depot
Take and detected.
The method of ozone recirculation fumigation, is carried in grain depot using ozone generating-device in a kind of grain depot of the present invention
For ozone, ozone is pumped into grain depot in the ventilation cage arranged by grain depot ground, ozone ring is carried out to the grain in grain depot
Stream suffocating treatment, and ozone generating capacity greatly promotes, can thoroughly kill microorganism in grain depot, mould and insect, and process terminates
Afterwards, ozone automatic reduction, without any residual, will not cause to change into oxygen to grain inside quality, harmless, using peace
Entirely, cooling process is carried out to air, the temperature and humidity of grain heap thing can be reduced, it is to avoid going mouldy for grain.
As shown in Figure 2, ozone circulatory flow fumigating device 10, including shell 1, the air inlet 11 on shell 1 and outlet
Mouth 12, filter 2, cooling device 3, ozone generating-device 4 and blower fan 5, filter 2, cooling device 3, ozone are filled
Put 4 and blower fan 5 may be contained between air inlet 11 and gas outlet 12, filter 2 and cooling device 3 are arranged in a crossed manner.
Filter 2 includes primarily efficient filter device 21, medium air filtration device 22 and effective filter 23, primarily efficient filter dress
21 are put for aluminum alloy outer frame G4 panel air filters, for filtering more than 5 μm of bulky grain dust particle, initial resistance is
50Pa, reuse capable of washing；Medium air filtration device 22 is aluminum alloy outer frame bag filter, for filtering 1～5 μm of dust
Particle；Effective filter 23 is non-inductive windings filter, with polypropylene filter paper as filter material, for filtering 0.5～5 μm of dust,
Up to 95～99.95%, initial resistance is 100Pa to filter efficiency；Wherein, medium air filtration device 22 be arranged at primarily efficient filter device 21 with
Between effective filter 23, the impurity in multiple filtration air can preferably carry out the generation of ozone, and ozone generating-device 4 is pacified
Loaded on the downstream of effective filter 23, clean air can preferably carry out ozone generating process.
In the present embodiment, cooling device 3 is air-conditioning cooling device, and air-conditioning cooling device includes indoor units 31 and off-premises station
Group 32, the indoor units 31 include A/C evaporator, and A/C evaporator is located at medium air filtration device 22 and effective filter
Between 23, after air cooling, it is easy to the generation of ozone, is cooled down using air-conditioning, volume greatly reduces, saving energy consumption, and cools down
Effect more preferably, is adapted to storehouse and processes.
In another embodiment, cooling device 3 is water-cooling apparatus, including water cooling pipeline, water cooling pipeline runs through
Between filter 2 and ozone generating-device 4, use cost can be reduced using water cooling, and is adapted to extensive grain depot to make
With.
In above-mentioned, blower fan 5 is high pressure positive blower, and after blower fan 5 are opened, outside air is smoked into ozone circulation from air inlet
Steam device in, air-flow through primarily efficient filter device 21, medium air filtration device 22 and effective filter 23 three layer filtration, thus
Depend on ozone generating assembly 41 without any impurity or dust, and by A/C evaporator take away heat in air and
Steam, is easy to the production of ozone, and the ozone for having produced enters silo after compressing via blower fan 5.
The ozone circulatory flow fumigating device 10 of above-mentioned middle employing, and ozone generating capacity greatly promotes, and can thoroughly kill in grain depot
Microorganism, mould and insect, after process terminates, ozone automatic reduction into oxygen, without any residual, will not be to component in grain
Matter causes to change, harmless, using safety.
The ozone sterilization that ozone recirculation fumigation in grain depot is proved by tests below suppresses the result of the test of insect pest：
Testing equipment：
Ozone Monitor, microorganism detector, Temperature and Humidity instrument, sampling sharp-pointed tube, piece-like tube, ozone circulatory flow fumigating device,
Test cabin, warehouse size is 24m*21m*4.5m, and volume is 2268m3, store 1300 tons or so of wheat, outdoor temp
30 DEG C of degree, humidity is 65%.
The front warehouse concrete condition such as following table of ozone recirculation fumigation；
As shown in fig. 1, by ozone circulatory flow fumigating device 10 by air inlet be flexible coupling 62 be connected to ventilation cage 61 on,
Start operating 5 days, until the process of whole storehouse grain is completed.
Sample spot skewer takes：
As shown in Fig. 3～Fig. 4, ozone respectively takes three by the grain top layer of the top of ventilation cage 61 by north, south before start
Individual sample, from top to bottom respectively skewer takes sample point and carries out the detection of microbial activity and insect pest content for 1m, 3.5m deep position；
After 3 days, after the completion for the treatment of that ozone recirculation fumigation is processed, then take sample in same position skewer and detected.
Testing result is as follows：
Situation of change after microbial activity before processing (activity unit is U, and below 200U is that activity is relatively low)
As can be seen from the above table 10U is minimum for activity, and basic inspection is not measured；Surrounding impurity content is high, microbial activity
It is high.
Data by more than in two tables have after silo good desinsection and sterilizing it is known that ozone recirculation fumigation are processed
Anti-mold effect, temperature change is little after before processing；Primary pest is killed substantially, and the activity of microorganism drops to minimum.
The above is only the preferred embodiment of the present invention, it is noted that to those skilled in the art, not
On the premise of departing from the invention design, some similar deformations and improvement can also be made, these also should be regarded as the present invention
Protection domain within.
Claims (8)
1. in a kind of grain depot ozone recirculation fumigation method, it is characterised in that circulation wind pipeline, institute are provided with a closed grain depot
State circulation wind pipeline and be connected to ozone circulatory flow fumigating device, in the ozone circulatory flow fumigating device ozone is sent, using ozone come
To carrying out suffocating treatment in grain depot；The ozone circulatory flow fumigating device includes cooling device, ozone generating-device and blower fan, cooling
Device is used to carry out air cooling process, and ozone generating-device is used to produce ozone, and blower fan is used for compressed air and ventilation
Reason；
The method and step of ozone recirculation fumigation is as follows：Hole capital after selling all securities is carried out disinfection place by ozone after grain outbound and before new grain warehouse-in
Reason；
Processed using Ozone recycling system after new grain warehouse-in, and grain temperature is reduced by cooling device, every half a year grain depot is entered
Ozone recirculation fumigation of row；
Wherein, ozone concentration is 50～80mg/L, and process time is 5～7 days, and process takes simultaneously after terminating to sample spot skewer in grain depot
Detected.
2. in a kind of grain depot according to claim 1 ozone recirculation fumigation method, it is characterised in that the circulation airduct
Road includes that some ventilation cages and connection ventilation cage located at grain depot ground are soft with the air inlet of ozone circulatory flow fumigating device
Connection.
3. in a kind of grain depot according to claim 2 ozone recirculation fumigation method, it is characterised in that the ozone circulation
Device for fumigation is connected on circulation wind pipeline by way of serial or parallel connection.
4. in a kind of grain depot according to claim 3 ozone recirculation fumigation method, it is characterised in that the ozone circulation
Device for fumigation also includes shell, the air inlet on the shell and gas outlet and filter, the filter, cooling
Device, ozone generating-device and blower fan may be contained between the air inlet and the gas outlet, the filter and described
Cooling device is arranged in a crossed manner, and the ozone generating-device includes ozone generating assembly and ozone driving power supply, and the ozone drives
Power supply is divided into the ozone generating assembly both sides.
5. in a kind of grain depot according to claim 4 ozone recirculation fumigation method, it is characterised in that the filter
Including primarily efficient filter device, medium air filtration device and effective filter, the medium air filtration device is located at the primarily efficient filter
Between device and the effective filter.
6. in a kind of grain depot according to claim 4 ozone recirculation fumigation method, it is characterised in that the cooling device
For water-cooling apparatus, including water cooling pipeline, the water cooling pipeline is through being located at the ozone generating-device.
7. in a kind of grain depot according to claim 6 ozone recirculation fumigation method, it is characterised in that the ozone occurs
Device is located at the effective filter downstream.
8. in a kind of grain depot according to claim 1 ozone recirculation fumigation method, it is characterised in that outside grain depot storehouse install
There are ozone concentration displaying alarm and warning sign, after ozone recirculation fumigation terminates, close ozone generating-device, wait 1～2
After hour, detected in grain depot with detector and be allowed for access after ozone concentration.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201611236971.1A CN106615089A (en) | 2016-12-28 | 2016-12-28 | Ozone recirculation fumigation method in grain depots |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201611236971.1A CN106615089A (en) | 2016-12-28 | 2016-12-28 | Ozone recirculation fumigation method in grain depots |
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ID=58832342
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN108522941A (en) * | 2017-11-14 | 2018-09-14 | 北京金大万翔环保科技有限公司 | A kind of method and system of warehouse Pesticidal and sterilizing |
| CN110393093A (en) * | 2019-09-02 | 2019-11-01 | 唐山小康米业有限公司 | Grain storage device |
| CN110604251A (en) * | 2018-06-15 | 2019-12-24 | 四川大学 | Method for treating aflatoxin B in stored corn by using chlorine dioxide1Method (2) |
| CN115900304A (en) * | 2022-12-30 | 2023-04-04 | 浙江大维高新技术股份有限公司 | Grain killing and drying equipment and method |
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