CN1583549A - External phosphine generator of granary - Google Patents
External phosphine generator of granary Download PDFInfo
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- CN1583549A CN1583549A CN 200410010343 CN200410010343A CN1583549A CN 1583549 A CN1583549 A CN 1583549A CN 200410010343 CN200410010343 CN 200410010343 CN 200410010343 A CN200410010343 A CN 200410010343A CN 1583549 A CN1583549 A CN 1583549A
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- explosive barrel
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Abstract
An external hydrogen phosphide generator for granary is composed of a cavity body with air inlet, air outlet and sealing cover, and an aluminium phosphide container in said cavity body, which is divided by cylindrical meshes or grate into aluminium phosphide chamber, dregs chamber and ventilating pipe. The hydrogen phosphide gas is generated by reaction between aluminium phosphide and the water component in air.
Description
Technical field: the aluminium phosphide that utilizes that the present invention relates to that a kind of grain depot fumigant insect killing uses produces the outer phosphine gas generator in storehouse of phosphuret-(t)ed hydrogen, relates in particular to the external phosphine generator of silo of generation phosphine gas in a kind of direct access storehouse outside circulation ventilation main pipe line.
Background technology: when the grain of grain depot storage at present takes place by insect, in most cases be the stifling grain of sterilant that utilizes this severe toxicity of certain density phosphine gas, again phosphuret-(t)ed hydrogen discharged from the grain heap after insect is killed.The method that produces at present phosphuret-(t)ed hydrogen mainly is to use aluminium phosphide and water reaction to produce, and also reacts with calcium phosphide and water sometimes or with zinc phosphide and acid-base reaction.Aluminium phosphide and water reaction generally have nature deliquescence method and add water and the method for aluminium phosphide reaction generation phosphuret-(t)ed hydrogen in traditional phosphine generator.The advantage of nature deliquescence method is that method is simple, does not need miscellaneous equipment, as long as aluminium phosphide is put on the place mat of grain face or in the shallow flat container, aluminium phosphide will be emitted phosphuret-(t)ed hydrogen after absorbing airborne steam.The shortcoming of this method is to need many people to wear a gas mask to enter to put dispenser in the warehouse one by one, longer duration, and labour intensity is big, and health is had certain harm; Each dispenser point is put medicine can not be too many, otherwise the phosphuret-(t)ed hydrogen amount that produces is when excessive, if can not in time spread the concentration that reaches certain, phosphuret-(t)ed hydrogen will spontaneous combustion, causes danger; Also will collect after stifling, handle residue, cumbersome, labour intensity is big.
The grain stack height is generally 6 meters in the at present newly-built modern tall and big one-storey house silo storehouse; it is very slow that the phosphine gas that produces utilizes the method for nature diffusion to be diffused into grain heap bottom from the grain face; and concentration distribution is very inhomogeneous; grain heap bottom phosphuret-(t)ed hydrogen is difficult to reach effective insecticidal concentration; in order to overcome this shortcoming; adopted and utilized gas blower to force the interior gas of grain heap to carry out the round-robin method, this method is called circulation.The gas sterilant is joined in the circulating line, sterilant is evenly distributed in the grain heap, this fumigating method is called recirculation fumigation.
In recirculation fumigation, also need earlier with the phosphuret-(t)ed hydrogen of solid aluminium phosphide through generated reactive gas.Traditional phosphine generator is that aluminium phosphide is put into producer, and a retort is arranged in the phosphine generator, and water is housed in the retort, the method by machinery make aluminium phosphide equably with the water reaction, produce phosphuret-(t)ed hydrogen.The phosphine gas of phosphine generator outlet is connected with the circulation pipeline, the flowing gas of phosphuret-(t)ed hydrogen by the circulation pipeline is transported in the silo goes.Use traditional phosphine generator to produce phosphuret-(t)ed hydrogen, eliminated that to enter warehouse dispenser, duration of contact long, avoid the trouble of phosphuret-(t)ed hydrogen spontaneous combustion and collection residue, and be convenient to control spraying medicine concentration.But traditional phosphine generator the phenomenon of catching fire acutely occurs in order to prevent the reaction of sealing and aluminium phosphide, need ceaselessly replenish carbonic acid gas to the phosphuret-(t)ed hydrogen retort, prevents to catch fire to water down phosphine gas.The carbonic acid gas that existing market is sold all is to use the high-pressure cylinder splendid attire, and steel cylinder is very heavy, buys, transports, moves, uses all very inconvenient.Though this method has overcome the deficiency of natural deliquescence method, must use great amount of carbon dioxide to bring many new troubles again, increase stifling cost.Because bottled carbonic acid gas is difficult for buying in most areas, transportation trouble, difficult use very inconvenient.In addition, traditional phosphine generator once can only be adorned 8 kilograms of aluminium phosphide at most at present, once needs nearly 30 kilograms of aluminium phosphide when fumigating large storehouse, once fumigates and need shut down powder charge several times, handles residue, troublesome poeration.To such an extent as to a lot of warehouses do not re-use the external phosphine generator of silo, change the natural deliquescence and the circulation bonded method of traditional grain face dispenser again into.This method does not still solve the big shortcoming of labour intensity.
Summary of the invention: in the natural deliquescence method that overcomes at present traditional aluminium phosphide grain face dispenser, dispenser, collection and treatment residue labour intensity is big, harm is big shortcoming and use phosphine gas generator inconvenience problem traditional storehouse outside.The purpose of this invention is to provide a kind of simple in structure, safe in utilization, easy and simple to handle, with low cost, can directly insert the external phosphine generator of silo in the storehouse outside circulation ventilation main line.
Technical scheme of the present invention realizes in the following manner:
The external phosphine generator of a kind of silo, it comprises that one has the cavity that picks out gas port, external inlet mouth, sealing cover, has a drug-containing device that communicates with air in its cavity.
Drug-containing device can be a Sheng explosive barrel one that rotate, that can take out in the cavity, contains explosive barrel inside and is divided into the vent-pipe of containing medicine chamber, herb residue cavity, communicating with the cavity air inlet/outlet by big net jacket casing small net tube.
Containing explosive barrel medicine containing opening end has one can take off the movable end cover of bringing gas port into, and movable end cover is made up of internal end cover, outer end cap, forms an air intake passage between the two end cap, and internal end cover is a reticulated structure; Be made up of inside and outside water bottom at the bottom of containing explosive barrel, form an air-out passage between the interior end and the outer bottom, the interior end is a reticulated structure; Install one at the inlet mouth place of movable end cover respectively to the air-flow distributor of air intake passage, vent-pipe air inlet.
Containing explosive barrel is fixed on the Sheng explosive barrel support that rotates, contain explosive barrel support one end bearing is installed, contain the explosive barrel support by bearing fixing on the end that air outlet extends internally, at an end of bearing mechanical reduction gear is installed, mechanical reduction gear links to each other with the motor of cavity outside.
There is a Pivoting bearing the outside middle part of cavity, and cavity is fixed on the frames by Pivoting bearing.
Big net tube, small net tube are that wire netting tube, internal end cover, the interior end are the internal end cover of wire netting, the interior end.
Drug-containing device can also be a two-layer container up and down that can take out from cavity, and the upper strata is the double-edged fine-toothed comb of the eye with holes that supports medicine.
Gordian technique of the present invention is: do one and independently contain medicine cavity 1, be linked in the silo gas circulation master gas circuit, the gas in the gas circuit enters a part of gas of main gas circuit and contains in medicine cavity 14 and the herb residue cavity body 13 by the end 15, big net tube 12, small net tube 17 in gas distributor 5, air intake passage 10, reticulated structure internal end cover 9, the reticulated structure.
Positively effect of the present invention is:
1, owing to utilizes steam and aluminium phosphide in the recycle stream loop gas to react, avoided directly making the vigorous reaction of water and aluminium phosphide, the phosphine gas that produces is in time carried away and obtains dilution by gas a large amount of in the pipeline, can not cause the phosphine gas partial concn to raise and combustion phenomena occur, avoid the use carbonic acid gas to prevent the incendiary trouble.
2, swinging mounting drive Sheng explosive barrel rotates and can the aluminium phosphide of containing in the explosive barrel be stirred, and the residue of generation drops in the herb residue cavity body by wire netting, makes fully contact reacts of aluminium phosphide and airborne steam.
3, contain the medicine cavity volume and can design disposable dispensing according to stifling the requirement easily.
4, behind stifling the end, can take out the Sheng explosive barrel, open end cap and pour out residue, make the residue collection and treatment convenient.
5, phosphine generator is inserted the preceding gas blower of opening of vent line dispensing, make phosphine generator be in negative pressure state, the phosphuret-(t)ed hydrogen that produces during dispensing is in time taken out by the negative pressure of ventilator trunk and is entered silo, reduces the harm to the dispenser personnel.
Description of drawings:
Fig. 1 is the structural principle synoptic diagram of drug-containing device among the present invention for the Sheng explosive barrel.
Fig. 2 for drug-containing device among the present invention be about the structural principle synoptic diagram of two-layer container
Embodiment: the present invention will be further described below in conjunction with accompanying drawing:
As seen from Figure 1: it comprises that has a cavity 1 that picks out gas port 21 and external inlet mouth 4, sealing cover 3, in cavity 1 outside middle part a Pivoting bearing 24 is arranged, and cavity 1 is fixed on the frames 25 by Pivoting bearing 24; Cavity 1 can rotate around the above-below direction of Pivoting bearing 24 in frames 25.A rotary Sheng explosive barrel support 2 is arranged in cavity 1 inside, bearing 20 is installed containing explosive barrel support 2 one end inside, contain explosive barrel support 2 and be fixed on the other end that air outlet 21 extends internally by bearing 20; At an end of containing explosive barrel support 2 installation bearings 20 mechanical reduction gear 18 is installed, mechanical reduction gear 18 links to each other with the motor 19 of cavity outside.Contain Sheng cartridge case 11 that can take out of explosive barrel support 2 inner placements; Big tube 12, the little tube 17 of containing two wire nettings that cartridge case 11 inside are nested is separated into the vent-pipe 23 of containing medicine chamber 14, herb residue cavity 13, communicating with cavity air inlet/outlet (4,21).
Be it can also be seen that by Fig. 1: containing explosive barrel 11 medicine containing opening ends has a removable movable end cover, movable end cover is made up of internal end cover 9, outer end cap 8, two end cap is connected as a single entity by support cylinder 7, forms an air intake passage 10 between the two end cap, and internal end cover 9 is metal net shaped structure; Be made up of inside and outside water bottom at the bottom of containing explosive barrel, form an air-out passage 16 between the interior end 15 and the outer bottom, the interior end 15 is metal net shaped structure; Install one respectively to the air-flow distributor 5 of air intake passage 10, vent-pipe 23 air inlets at movable end cover inlet mouth 6 places, at the bottom of the Sheng explosive barrel, the air outlet 22 that communicates with vent-pipe 23, cavity air outlet 21 is arranged.
As seen from Figure 2: cavity is identical with Fig. 1, different is the same can the taking-up from cavity of drug-containing device 11 structure images, one opening pot, be placed with the double-edged fine-toothed comb 26 of the eye with holes that supports medicine in the pot, medicament can go into to put thereon, and the reacted dregs of a decoction fall into the bottom of a pan wait by eyelet and regularly remove.
The concrete operations step was as follows when row was stifling when as seen from Figure 1, utilizing this producer:
The door and window of airtight good silo connects circumflux device, and the power ventilation mouth of silo is airtight, and the circulating line inlet mouth is connected with the gas port 21 that picks out of phosphine generator.The sealing cover 3 of phosphine generator is opened, is removed sealing cover 3, with cavity 1 till hinge through is to sealing cover one end to oblique upper.Take down and contain the explosive barrel end cap.Open the circulation exhaust fan, when phosphine generator sealing cover one end can feel that tangible air-flow inwardly flows, put on smoke mask, the aluminium phosphide that needs is poured in the Sheng medicine cavity 14 successively, the phosphuret-(t)ed hydrogen that produces in the aluminium phosphide medicine bottle and because aluminium phosphide is exposed in the air phosphuret-(t)ed hydrogen that generates with airborne steam reaction can in time be taken out avoids the phosphine concentration part too high.To contain the explosive barrel end cap and fix, the dispenser cavity will be turned to level attitude, sealing cover 3 will be sealed.Open the motor switch of phosphine generator, make Sheng explosive barrel support drive the Sheng explosive barrel and rotate, the aluminium phosphide of containing in the medicine cavity 14 are stirred around transverse axis.Connect cavity 1 external inlet mouth 4 then and carry out circulation with circulation blower fan air outlet.Behind the air admission aluminium phosphide producer, through gas distributor 5 shuntings, part air communication is crossed vent-pipe 23 and is flowed out, another part enters Sheng medicine cavity 14 and herb residue cavity body 13 after changing direction through gas distributor 5, unreacted aluminium phosphide reaction completely produces phosphine gas in aluminium phosphide in moisture in the gas and the Sheng medicine cavity 14 and the herb residue cavity body 13, and the phosphine gas of generation is drained in the circulation master gas circuit by bottom metal net, outlet passageway 16 and air outlet 22 again.The phosphuret-(t)ed hydrogen that produces is also distributed the air-flow that enters into Sheng medicine cavity 14 and herb residue cavity body 13 in time to dilute by air-flow in the main pipe line and gas distributor simultaneously, prevents that phosphuret-(t)ed hydrogen from gathering, burning appears in the partial concn rising.The Sheng explosive barrel support 2 that rotates drives contains cartridge case 11 rotations, does not stop to stir the aluminium phosphide fast reaction speed.Through after a while, the motor of closing ring flow fan and phosphine generator after aluminium phosphide reacts completely, phosphine generator is taken off from the circulation ventilation system, and the power ventilation mouth of shack flow fan air outlet and silo is proceeded circulation then, until reaching requirement.The sealing cover 3 of phosphine generator is opened, taken out and contain explosive barrel 11, open the end cap of containing explosive barrel, pour out the residue of containing in the explosive barrel 11 and deal carefully with.
As seen from Figure 2: the concrete operations step was as follows when row was stifling when utilizing this producer: the door and window of airtight good silo, connect circumflux device, the power ventilation mouth of airtight silo is connected the circulating line inlet mouth with the gas port 21 that picks out of phosphine generator.Open the sealing cover 3 of phosphine generator, remove sealing cover 3.Drug-containing device 11 is shifted out from cavity 1, opening the circulation blower fan bleeds, when phosphine generator sealing cover one end can feel that tangible air-flow inwardly flows, put on smoke mask, the aluminium phosphide that needs is poured on the mesh-supported 26 on drug-containing device 11 tops successively, the phosphuret-(t)ed hydrogen that produces in the aluminium phosphide medicine bottle and because aluminium phosphide is exposed in the air phosphuret-(t)ed hydrogen that generates with airborne steam reaction can in time be taken out avoids the phosphine concentration part too high.With sealing cover 3 good seals.Connect cavity 1 external inlet mouth 4 then and carry out circulation with circulation blower fan air outlet.Behind the air admission aluminium phosphide producer, the aluminium phosphide reaction on moisture in the gas and the mesh-supported 26 produces phosphine gas, and the phosphine gas of generation is drained in the circulation master gas circuit by air outlet 21 again.The phosphuret-(t)ed hydrogen that produces is in time diluted by the air-flow in the main pipe line, prevents that phosphuret-(t)ed hydrogen from gathering the partial concn rising and burning occurring.Through after a while, closing ring flow fan after aluminium phosphide reacts completely takes off phosphine generator from the circulation ventilation system, and the power ventilation mouth of shack flow fan air outlet and silo is proceeded circulation then, until reaching requirement.The sealing cover 3 of phosphine generator is opened, taken out and contain explosive barrel 11, pour out the residue of containing in the explosive barrel 11 and deal carefully with.
Claims (7)
1, the external phosphine generator of a kind of silo, it comprises that one has the cavity (1) that picks out gas port (21), external inlet mouth (4), sealing cover (3), is characterized in that: a drug-containing device (11) that communicates with air is arranged in the cavity (1).
The external phosphine generator of 2 silos according to claim 1, it is characterized in that: the intravital drug-containing device in chamber (11) is a Sheng explosive barrel one that rotate, that can take out in the cavity, contains the inner vent-pipe (23) that is divided into Sheng medicine chamber (14), herb residue cavity (13), communicates with cavity air inlet/outlet (4,21) by big net tube (12) cover small net tubes (17) of explosive barrel.
3, the external phosphine generator of silo according to claim 2, it is characterized in that: containing explosive barrel (11) medicine containing opening end has a removable movable end cover, movable end cover is made up of internal end cover (9), outer end cap (8), form an air intake passage (10) between the two end cap, internal end cover (9) is a reticulated structure; Be made up of inside and outside water bottom at the bottom of containing explosive barrel, form an air-out passage (16) between the interior end (15) and the outer bottom, the interior end (15) are reticulated structure; Locate to install one respectively to the air-flow distributor (5) of air intake passage (10), vent-pipe (23) air inlet at the inlet mouth (6) of movable end cover.
4, according to claim 2 or the external phosphine generator of 3 described silos, it is characterized in that: contain explosive barrel (11) and be fixed on the Sheng explosive barrel support (2) that rotates, contain explosive barrel support (2) one ends bearing (20) is installed, containing the explosive barrel support is fixed on the end that air outlet (21) extends internally by bearing (20), end at bearing (20) is equipped with mechanical reduction gear (18), and mechanical reduction gear (18) links to each other with the motor (19) of cavity outside.
5, the external phosphine generator of silo according to claim 4 is characterized in that: there is a Pivoting bearing (24) the outside middle part of cavity (1), and cavity (1) is fixed on the frames (25) by Pivoting bearing (24).
6, the external phosphine generator of silo according to claim 5 is characterized in that: big net tube (12), small net tube (17) are that wire netting tube, internal end cover (9), the interior end (15) are the internal end cover of wire netting, the interior end.
7, the external phosphine generator of silo according to claim 1 is characterized in that: drug-containing device (11) is a two-layer container up and down that can take out from cavity, and the upper strata is the double-edged fine-toothed comb (26) of the eye with holes that supports medicine.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200410010343 CN1583549A (en) | 2004-06-16 | 2004-06-16 | External phosphine generator of granary |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200410010343 CN1583549A (en) | 2004-06-16 | 2004-06-16 | External phosphine generator of granary |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1583549A true CN1583549A (en) | 2005-02-23 |
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ID=34600274
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200410010343 Pending CN1583549A (en) | 2004-06-16 | 2004-06-16 | External phosphine generator of granary |
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| Country | Link |
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| CN (1) | CN1583549A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109270209A (en) * | 2018-10-16 | 2019-01-25 | 中国科学技术大学 | Phosphine gas fumigates grain various factors coupling under environment and ignites mechanism research experiment platform |
| CN113057156A (en) * | 2021-03-31 | 2021-07-02 | 上海正帆科技股份有限公司 | Phosphine gas generating device and method |
-
2004
- 2004-06-16 CN CN 200410010343 patent/CN1583549A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109270209A (en) * | 2018-10-16 | 2019-01-25 | 中国科学技术大学 | Phosphine gas fumigates grain various factors coupling under environment and ignites mechanism research experiment platform |
| CN109270209B (en) * | 2018-10-16 | 2024-02-09 | 中国科学技术大学 | Grain multifactor coupling ignition mechanism research experiment platform under phosphine gas fumigation environment |
| CN113057156A (en) * | 2021-03-31 | 2021-07-02 | 上海正帆科技股份有限公司 | Phosphine gas generating device and method |
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