Deliquescence type hydrogen phosphide gas generating device

Abstract

The utility model discloses a deliquescence type hydrogen phosphide gas generating device. According to the technical scheme, the phosphine generating device comprises a plurality of phosphine generating chambers, the phosphine generating chambers are fixed together through a top fixing plate and a bottom fixing plate, and each phosphine generating chamber comprises a keel mechanism playing a supporting role. A generating mechanism for generating phosphine gas, a material closing mechanism for preventing powder from falling and a powder collecting mechanism for collecting the powder are fixedly arranged in the keel mechanism, and a dust isolation mechanism for sealing the phosphine generating chamber is further arranged outside the keel mechanism. The scheme provided by the utility model is used for generating hydrogen phosphide gas, that is, the hydrogen phosphide gas is fully subjected to deliquescence reaction with moisture in flowing air, and residues are automatically fed into the treatment unit, so that the contact between people and medicines and the contact between the medicines and the environment are minimized, the harm of toxic gas in the environment is reduced, and the personal safety is ensured.

Description

TECHNICAL FIELD

[0001] The utility model relates to grain and other agricultural products fumigation and steaming insect killing equipment technical field, especially relates to a deliquescence formula phosphine gas generating device. BACKGROUND

[0002] At present, the phosphine gas commonly used in grain fumigation and steaming insect killing is generated by reacting 85% aluminum phosphide powder or 56% tablet (pill) with water. There are various forms of phosphine fumigation and steaming pesticide application methods for large-scale grain storage in China, but generally there are only two types: one is external pesticide application, and the other is internal pesticide application.

[0003] The current external pesticide application has the following shortcomings: 1. The external generation is a one-time concentrated pesticide application, and the initial PH3 concentration of fumigation and steaming insect killing is very high, which can easily cause pest false death, which is not the best pesticide insect killing effect, that is, the effective CT value of pest death; 2. The fumigation and steaming operation time is relatively long (8-10 hours / time), and personnel need to be on duty throughout the operation, and carbon dioxide steel cylinder gas is prone to blockage, causing accidents; 3. The external generation is not suitable for long-term placement and multiple pesticide application, and can only kill single pest period of stored grain pests; 4. The external generation of phosphine has more or less toxic gas leakage, causing environmental pollution and other problems; 5. The residues after fumigation and steaming still need to be treated again, and the residual toxic gas is not recycled but directly discharged into the environment, causing harmful pollution.

[0004] Internal pesticide application: during the pesticide application process, the pesticide application personnel need to enter the grain storage room or airtight environment to complete the fumigation and steaming pesticide application operation. At present, this technology is also a commonly used method, mainly including grain surface vessel pesticide application method, small pesticide bag pesticide application method in the surface layer of grain pile, probe pipe layered pesticide application and slow-release pesticide application, etc.

[0005] At present, the internal pesticide application scheme has the following shortcomings: multiple people need to enter the warehouse to clean up the residues; the pesticide concentration is uncontrollable and can only be determined by the humidity of the grain pile space; the residues still need to be treated again, and the residual toxic gas is directly discharged into the environment; the fumigation and steaming operation workload is large; the unit pesticide dosage is large, which cannot achieve effective insect killing CT value; and precise fumigation and steaming insect killing cannot be achieved within the effective time of the grain storage period. UTILITY MODEL CONTENTS

[0006] In view of the shortcomings of the prior art, the main purpose of the utility model is to provide a phosphine gas generating device which can overcome the many shortcomings of the internal pesticide application scheme.

[0007] To achieve the above object, the utility model provides the following technical scheme: A deliquescent phosphine gas generating device, including multiple phosphine generating chambers, the multiple phosphine generating chambers are fixed by top fixed plate and bottom fixed plate, each phosphine generating chamber includes a keel mechanism for supporting, the keel mechanism is fixedly provided with a generating mechanism for phosphine gas generation, a material closing mechanism for preventing powder from falling and a powder collecting mechanism for collecting powder, the keel mechanism is further provided with a dust isolation mechanism for closing the phosphine generating chamber.

[0008] Preferably, the keel mechanism includes a plurality of keel rods, an upper fixed block, a bottom material cup and a keel ring, the upper ends of the plurality of keel rods are fixed by the upper fixed block, the upper fixed block is fixedly arranged on the top fixed plate, the lower ends of the plurality of keel rods are fixedly arranged in the bottom material cup, each keel rod is fixedly connected with the upper fixed block and the bottom material cup by a screw, and the middle parts of the plurality of keel rods are fixedly connected by a plurality of keel rings.

[0009] Preferably, the generating mechanism includes a plurality of deliquescent discs fixed on the outer sides of the plurality of keel rods, and a material scattering hole is formed in the center of each deliquescent disc.

[0010] Preferably, the material closing mechanism includes a middle fixed cup arranged below the bottommost deliquescent disc, a middle residual falling hole is arranged in the center of the middle fixed cup, a middle material discharging cone capable of sealing the middle residual falling hole is arranged in the middle fixed cup, the plurality of keel rods are arranged through the middle fixed cup and fixedly connected with the middle fixed cup by screws, a double-acting cylinder is arranged in the keel mechanism, the upper piston rod of the double-acting cylinder is connected with the middle material discharging cone, and the middle material discharging cone can open the middle residual falling hole along with the upper piston rod.

[0011] Preferably, the powder collecting mechanism includes a vacuum material conveyor arranged below the bottom material cup, the vacuum material conveyor is in communication with a bottom material outlet hole in the center of the bottom material cup, a bottom material discharging cone capable of sealing the bottom material outlet hole is arranged on the bottom material cup, and the bottom material discharging cone is connected with the lower piston rod of the double-acting cylinder.

[0012] Preferably, a bottom cover capable of covering the vacuum material conveyor is further connected below the bottom material cup, and the bottom material cup is fixedly installed with the bottom fixed plate by a bottom cone ring.

[0013] Preferably, the dust isolation mechanism includes a powder isolation cloth capable of covering the entire keel mechanism, and the powder isolation cloth is fixed in a fixed cloth ring groove of a fixed cloth disc and the bottom material cup by an upper steel hoop clamp and a lower steel hoop clamp respectively.

[0014] Preferably, an expansion tube core fixedly connected with the keel ring is further arranged in the center of the deliquescent disc, the length of the expansion tube core is the same as the length of the deliquescent disc, and the cross-sectional area of the expansion tube core is 1 / 3 of the cross-sectional area of the center of the deliquescent disc.

[0015] Preferably, the bottom cup is provided with a plurality of air pipe through holes for the air pipe of the bidirectional air cylinder.

[0016] The utility model discloses relative to prior art has following advantages, has realized the minimization of human and medicine and medicine and environment contact, reduced the harm of toxic gas in the environment, ensured personal safety. Phosphine generating device is built-in, and personnel long-term on duty is not needed, and fumigation medicine and residual powder are all concentrated in the powder isolation cloth, and the fan circulation does not bring in the pollution of grain, ensures the three safety of grain, equipment and personal safety. The fumigation operation is carried out below the grain surface in the warehouse, can effectively avoid the medicine on the grain surface, the deficiency of whole warehouse circulation fumigation, and only the space invalid concentration can save 30%-50% or even above, and the high concentration of warehouse space also increases the possibility of leakage. The residue in the bottom cup and the powder isolation cloth after the reaction of the aluminum phosphide in the generating unit can be transported by the vacuum feeder and concentrated in the same interface outside the warehouse, and then the harmless treatment is carried out in batches by the processing unit, and the residual gas is still sent back to the grain pile, which is beneficial to the utilization of medicine. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 It is a structure schematic view of a deliquescence type phosphine gas generating device of the utility model;

[0018] Figure 2 It is Figure 1 It is an enlarged structure schematic view of A part;

[0019] Figure 3 It is an exploded view of the phosphine generating chamber of the utility model;

[0020] Figure 4 It is a structure schematic view of the deliquescence disc of the utility model;

[0021] Figure 5 It is a structure schematic view of the solid cup of the utility model;

[0022] Figure 6 It is a front view of the bottom cup of the utility model;

[0023] Figure 7 It is a top view of the bottom cup of the utility model;

[0024] Figure 8 It is a structure schematic view of the pipe extension core of the utility model. DETAILED DESCRIPTION

[0025] The utility model will be further described below in connection with the drawings.

[0026] For example Figure 1As shown, the phosphine gas generating device of the present scheme is mainly used for phosphine gas generation, i.e. fully reacting with moisture in flowing air, and automatically sending the residue into the processing unit. Taking 16 phosphine generating chambers C007 as an example, the phosphine generating chamber C007 is composed of keel rod C026, upper solid block C031, keel ring C033, solid cloth disc C030, deliquescence disc C032, middle solid cup C023, middle discharge cone C012, two-way cylinder C009, bottom material cup C006, bottom discharge cone C018, bottom cover C005, and powder isolation cloth C025.

[0027] The keel rod C026 has three equivalent keel rods C027 and C035, the upper end of which is fixed by the upper solid block C031, the lower end of which is fixed by penetrating the bottom material cup C006, and the middle part of which is fixed by the keel ring C033, the upper end of which is equipped with the upper solid block C031, each of which is equipped on the fixed plate C001, and the spacing between each keel ring C033 is equal to the spacing of each deliquescence disc C032. The number of deliquescence discs C032 of the generating mechanism C002 can be increased or decreased according to actual needs, and generally can be composed of 4-10 groups, and in this embodiment, 8 groups are connected in series on the three keel rods.

[0028] The middle solid cup C023 of the material closing mechanism C003 is tightly connected to the lower end of the last deliquescence disc C034, and the last deliquescence disc C034 is not provided with a material discharge port C037. The middle solid cup C023 is equipped with a middle discharge cone C012 in the center, and the middle solid cup C023 is provided with a middle residue falling hole C052 in the center. A plurality of keel rods penetrate through the middle solid cup C023 and are fixedly connected with the middle solid cup C023 through the screws arranged in the screw holes C050. When the aluminum phosphide medicine falls into the deliquescence disc C032 to generate, the middle discharge cone C012 will close the middle residue falling hole C052 of the middle solid cup C032 due to its own weight without the action of the upper cylinder C014. After the aluminum phosphide reacts with water molecules in the flowing air to form aluminum hydroxide powder, the volume of the powder increases by about two times, and the increased volume of the medicine will overflow from the edge of the deliquescence disc C032 and fall into the bottom material cup C006 and the powder isolation cloth C025. The powder isolation cloth C025 is fixed in the solid cloth ring groove C040 of the solid cloth disc C030 and the bottom material cup C006 through the upper steel hoop clamp C028 and the lower steel hoop clamp C022, respectively. When the aluminum phosphide medicine is basically deliquesced and the generation is basically completed, the middle discharge cone C012 will be opened under the action of the upper cylinder C014 of the two-way cylinder, so as to facilitate the free falling of the powder from the residue falling hole C052 into the bottom material cup C006.

[0029] The middle discharge cone C012 is connected to the piston rod C013 of the upper cylinder C014, and the bottom discharge cone C018 is connected to the piston rod C016 of the lower cylinder C015.

[0030] Whether or not an expansion core C047 is added to the center of the deliquescent disc C032 depends on whether the fumigation material is powder, tablet or pill. If it is powder, an expansion core C047 can be added to reduce the central volume and reduce the amount of medicine. The length of the expansion core C047 is equal to the total length of the deliquescent disc C032, and the thickness is 1 / 3 of the central cross-sectional area of ​​the deliquescent disc C032. It is fixed to the keel ring C033.

[0031] The bottom material cup C006 has three keel rod holes C046 and four air pipe through holes C045 for the air pipes C011 of the bidirectional cylinder C009 to pass through, as well as a bottom discharge hole C042. When the aluminum hydroxide residue powder accumulates to a certain amount, the lower moving cylinder C015 of the bidirectional cylinder drives the bottom discharge cone C018 to open, and the residue powder will be sucked out by the vacuum conveyor C021 and sent to the processing unit for deep processing.

[0032] The bottom discharge cone C018 is similar to the middle discharge cone C012, with two pointed ends. The bottom of the bottom material cup C006 is fitted with a bottom sealing cover C005, and each bottom material cup C006 is fixed to the bottom fixing plate C004 via a bottom cone ring 043. The bottom sealing cover 005 is provided with a feeding hole C010 for the vacuum feeder C021 to extend from.

[0033] The above description is merely a preferred embodiment of this utility model. The protection scope of this utility model is not limited to the above embodiments. All technical solutions falling within the scope of this utility model's concept are protected. It should be noted that for those skilled in the art, any improvements and modifications made without departing from the principle of this utility model should also be considered within the protection scope of this utility model.

Claims

1. A deliquescent phosphine gas generator, characterized in that: It includes multiple phosphine generation chambers, which are fixed together by a top fixing plate and a bottom fixing plate. Each phosphine generation chamber includes a supporting keel mechanism. The keel mechanism is equipped with a generating mechanism for generating phosphine gas, a material closing mechanism for preventing powder from falling, and a powder collecting mechanism for collecting powder. The keel mechanism is also equipped with a dustproof mechanism for sealing the phosphine generation chamber.

2. The deliquescent phosphine gas generator according to claim 1, characterized in that: The keel mechanism includes several keel rods, an upper fixing block, a bottom material cup, and keel rings. The upper ends of the several keel rods are fixed by the upper fixing block, which is fixedly mounted on the top fixing plate. The lower ends of the several keel rods pass through the bottom material cup and are fixed. Each keel rod is fixedly connected to the upper fixing block and the bottom material cup by screws. The middle parts of the several keel rods are fixedly connected by multiple keel rings.

3. The deliquescent phosphine gas generator according to claim 2, characterized in that: The generating mechanism includes multiple deliquescence discs fixed to the outside of several keel rods, and the deliquescence discs have a material dispensing port at their center.

4. The deliquescent phosphine gas generator according to claim 3, characterized in that: The material closing mechanism includes a central solidification cup fitted below the bottom deliquescence plate. The central solidification cup has a central discharge hole at its center. The central solidification cup also has a central discharge cone that can block the central discharge hole. Several keel rods pass through the central solidification cup and are fixedly connected to the central solidification cup with screws. The keel mechanism is equipped with a bidirectional cylinder. The upper piston rod of the bidirectional cylinder is connected to the central discharge cone. The central discharge cone can open the central discharge hole by following the upper piston rod.

5. The deliquescent phosphine gas generator according to claim 4, characterized in that: The powder collection mechanism includes a vacuum conveyor located below the bottom material cup. The vacuum conveyor is connected to the bottom discharge hole at the center of the bottom material cup. The bottom material cup is also equipped with a bottom discharge cone that can block the bottom discharge hole. The bottom discharge cone is connected to the lower piston rod of a bidirectional cylinder.

6. The deliquescent phosphine gas generator according to claim 5, characterized in that: The bottom of the bottom material cup is also connected to a bottom cover that can cover the vacuum feeder. The bottom material cup is installed and fixed to the bottom fixing plate by a bottom cone ring.

7. A deliquescent phosphine gas generator according to claim 2, characterized in that: The dust-proof mechanism includes a dust-proof cloth that can cover the entire keel mechanism. The dust-proof cloth is fixed in the cloth-fixing ring groove of the cloth-fixing plate and the bottom material cup by upper and lower steel hoop clamps, respectively.

8. A deliquescent phosphine gas generator according to claim 3, characterized in that: The center of the deliquescence tray is also provided with an expansion tube core that is fixedly connected to the keel ring. The length of the expansion tube core is the same as the length of the deliquescence tray, and the cross-sectional area of ​​the expansion tube core is 1 / 3 of the cross-sectional area of ​​the center of the deliquescence tray.

9. A deliquescent phosphine gas generator according to claim 4, characterized in that: The bottom cup is provided with several air pipe through holes for the air pipes of the bidirectional cylinder to pass through.

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