CN110771622A

CN110771622A - Dichlorvos smoke agent

Info

Publication number: CN110771622A
Application number: CN201910992061.3A
Authority: CN
Inventors: 张华伟; 王英爽; 王佳建; 宋显全; 卢洪斌; 安允龙; 卫鑫; 安永一; 林文华; 王春磊; 樊殿佐; 刘丽颖; 葛迎春; 韩冰; 关丽萍; 吴爽; 李万龙; 于海龙; 张少龙; 宋久栋
Original assignee: Pingshan Mountain Heilongjiang Province Forestry Pharmaceutical Factory
Current assignee: Pingshan Mountain Heilongjiang Province Forestry Pharmaceutical Factory
Priority date: 2019-10-18
Filing date: 2019-10-18
Publication date: 2020-02-11

Abstract

The invention relates to the technical field of pesticide supplies, in particular to a dichlorvos smoke agent. A dichlorvos smoke agent at least comprises an ignition powder tube, a pulling gun, a raw pesticide containing tube and a box cover, wherein the smoke agent is ignited by pulling or igniting the pulling gun, so that the dichlorvos raw pesticide is gasified and condensed to form smoke particles to act on plants, and the heat stability and the adhesion force with the plants are enhanced by adding a heat stabilizer and a synergist into the raw pesticide.

Description

Dichlorvos smoke agent

Technical Field

The invention relates to the technical field of pesticide supplies, in particular to a dichlorvos smoke agent.

Background

Dichlorvos is an organophosphorus pesticide, and is commonly used for effectively preventing and treating various plant diseases and insect pests in agriculture due to strong contact poisoning, stomach poisoning and fumigation effects, but the traditional dichlorvos is missible oil, a large amount of organic solvents such as benzene and xylene are used during manufacturing, the environmental protection performance cannot be reflected, and a large amount of water is required for dilution during use, so that certain difficulties are caused in mountainous areas which are inconvenient to traffic and lack of water sources.

The smoke agent developed and prepared at present mixes the agent for preventing and treating plant diseases and insect pests with combustible substances, and after combustion, the pesticide is gasified and condensed into smoke particles to quickly and efficiently act on plants. However, although the smoke pesticide has many advantages, not all pesticides can be prepared into aerosol, such as widely used dichlorvos, which are easily decomposed by heat, if the smoke pesticide is prepared into aerosol, most of active ingredients are decomposed by heat in the combustion process, which not only can not play a role in preventing and treating plant diseases and insect pests, but also severely pollutes the environment by the gas released by decomposition.

Disclosure of Invention

In order to solve the technical problem, the invention provides a dichlorvos smoke agent, which comprises a priming powder tube, a pulling gun, a primary medicine containing tube and a box cover; the box cover and the ignition powder tube are connected in a tenon joint mode, and a cavity is formed between the box cover and the ignition powder tube; the pulling cannon is arranged at the center of the cavity, and the raw medicine containing pipes are arranged in the cavity and are uniformly distributed around the pulling cannon;

the pulling gun comprises a pulling wire, a first medicine layer, a second medicine layer and a packaging layer; the outer layer of one end of the stay wire is coated with a first fuel as a drug twist, the first drug layer wraps the drug twist, the second drug layer wraps the first drug layer, the packaging layer wraps the second drug layer, and the other end of the stay wire is exposed out of the packaging layer;

the inside of the raw medicine containing tube is filled with a dichlorvos raw medicine, a heat stabilizer and a synergist.

According to a preferable technical scheme, a second fuel is further filled in the ignition tube, and the second fuel is prepared from 45-60 parts by weight of potassium nitrate, 12-18 parts by weight of sulfur, 20-26 parts by weight of kaolin, 23-53 parts by weight of ammonium chloride and 24-36 parts by weight of bagasse powder.

According to a preferable technical scheme, the preparation raw materials of the first fuel comprise, by weight, 75-105 parts of potassium perchlorate, 37-52 parts of sugarcane powder and 12-18 parts of carbon powder.

According to a preferable technical scheme, the first chemical layer contains a third chemical, and the third chemical is prepared from 12-18 parts by weight of red phosphorus, 45-60 parts by weight of potassium perchlorate, 22-37 parts by weight of sugarcane powder, 4.5-10.5 parts by weight of an adhesive and 30-60 parts by weight of water.

According to a preferable technical scheme, the second chemical layer contains a fourth chemical, and the fourth chemical is prepared from 45-75 parts by weight of potassium nitrate, 12-18 parts by weight of sulfur, 20-34 parts by weight of sugarcane powder, 4-8 parts by weight of a binder and 30-60 parts by weight of water.

As a preferable technical scheme of the invention, the weight ratio of the dichlorvos technical, the heat stabilizer and the synergist is 1: (0.25-0.4): (0.05-0.25).

In a preferred embodiment of the present invention, the heat stabilizer is cyclodextrin.

As a preferable technical scheme, the synergist is a gemini surfactant.

As a preferable technical solution of the present invention, the gemini surfactant is a sulfonate gemini surfactant.

As a preferable technical scheme of the invention, the preparation method of the larval firecracker comprises the following steps:

s1: preparing medicinal twist: putting potassium perchlorate, sugarcane powder and carbon powder in a container according to parts by weight, and mixing the components in parts by weight according to a ratio of 1: 1, adding water according to the weight ratio, stirring to dissolve the mixture in water to prepare a first fuel, putting one end of a stay wire into the first fuel for dipping, taking out the stay wire after the stay wire is fully dipped with the first fuel, and twisting the stay wire with the first fuel;

s2: preparation of the first medicine layer: placing red phosphorus, potassium perchlorate, sugarcane powder, adhesive and water in a container according to the parts by weight, stirring to prepare a third fuel, placing the carrier material of the first fuel layer in the container for dipping, and taking out the carrier material to be used as the first fuel layer;

s3: preparing a second medicine layer: putting potassium nitrate, sulfur, sugarcane powder, an adhesive and water in a container according to the parts by weight, stirring to prepare a fourth fuel, putting the carrier material of the second fuel layer in the container for dipping, and taking out the carrier material to prepare a second fuel layer;

s4: the gun is manufactured according to the sequence that the first medicine layer is wrapped by the medicine twist, the second medicine layer is wrapped by the first medicine layer and the second medicine layer is wrapped by the packaging layer, the gun is stored in a wet state and is dried when in use.

Has the advantages that: the invention provides a dichlorvos smoke agent, which is prepared by placing dichlorvos in a raw pesticide containing tube, wherein the smoke agent at least comprises a fire-igniting powder tube, a pulling cannon, a raw pesticide containing tube and a box cover, and the smoke agent can be ignited by pulling or igniting a pull wire on the pulling cannon, so that the dichlorvos are gasified and condensed into smoke particles.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

FIG. 1 is a block diagram of a dichlorvos smoke formulation as described in the present invention;

wherein, 1-outer package damp-proof device, 3-box cover, 4-igniting powder tube, 5-raw medicine containing tube, and 6-pulling gun.

FIG. 2 is a structural diagram of the present invention;

wherein, 2-stay wire, 8-medical twist, 9-first medical layer, 10-second medical layer and 11-packaging layer.

Detailed Description

The disclosure may be understood more readily by reference to the following detailed description of preferred embodiments of the invention and the examples included therein. Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. In case of conflict, the present specification, including definitions, will control.

The terms "comprises," "comprising," "includes," "including," "has," "having," "contains," "containing," or any other variation thereof, as used herein, are intended to cover a non-exclusive inclusion. For example, a composition, process, method, article, or apparatus that comprises a list of elements is not necessarily limited to only those elements but may include other elements not expressly listed or inherent to such composition, process, method, article, or apparatus.

When an amount, concentration, or other value or parameter is expressed as a range, preferred range, or as a range of upper preferable values and lower preferable values, this is to be understood as specifically disclosing all ranges formed from any pair of any upper range limit or preferred value and any lower range limit or preferred value, regardless of whether ranges are separately disclosed. For example, when a range of "1 to 5" is disclosed, the described range should be interpreted to include the ranges "1 to 4", "1 to 3", "1 to 2 and 4 to 5", "1 to 3 and 5", and the like. When a range of values is described herein, unless otherwise stated, the range is intended to include the endpoints thereof and all integers and fractions within the range.

In addition, the indefinite articles "a" and "an" preceding an element or component of the invention are not intended to limit the number requirement (i.e., the number of occurrences) of the element or component. Thus, "a" or "an" should be read to include one or at least one, and the singular form of an element or component also includes the plural unless the stated number clearly indicates that the singular form is intended.

The meaning of "first, second, third and fourth" in the present invention is to distinguish the same structural or compositional features in the product, and not to limit the order of the structures of the product of the present invention.

The dichlorvos smoke agent of the present invention will be described in detail with reference to the accompanying drawings.

As shown in fig. 1, in one aspect, the invention provides a dichlorvos smoke agent, which comprises a priming powder tube 4, a pulling gun 6, a raw medicine containing tube 5 and a box cover 3; the box cover 3 and the ignition charge pipe 4 are connected in a joggle mode, and a cavity is formed between the box cover and the ignition charge pipe; the pulling cannon is arranged at the center of the cavity, and the raw medicine containing pipes 5 are arranged in the cavity and are uniformly distributed around the pulling cannon 6;

as shown in fig. 2, the pulling gun 6 comprises a pulling wire 2, a first medicine layer 9, a second medicine layer 10 and a packaging layer 11; the outer layer of one end of the stay wire 2 is coated with a first fuel, which is used as a drug twist 8, the first drug layer 9 wraps the drug twist 8, the second drug layer 10 wraps the first drug layer 9, the packaging layer 11 wraps the second drug layer 10, and the other end of the stay wire 2 is exposed out of the packaging layer 11;

the raw pesticide containing pipe 5 is filled with a dichlorvos raw pesticide, a heat stabilizer and a synergist.

Dichlorvos, also known as DDVP, is technically known as O, O-dimethyl-O- (2, 2-dichlorovinyl) phosphate, is an organophosphorus pesticide, and industrial products are colorless to light brown liquids, and pure products have boiling points of 74 ℃ under 133.322Pa, are high in volatility and easy to decompose under heat, and release toxic gases containing phosphorus oxide and chloride. Because of its contact poisoning, stomach poisoning and fumigating action, it is often used as a broad-spectrum pesticide for effectively preventing and curing various diseases and pests of crops. The dichlorvos technical product is a liquid product synthesized by dichlorvos raw materials, the effective component content of the dichlorvos is high and the dichlorvos cannot be used directly, the effective component content of the dichlorvos technical product is not limited in the invention, and the effective component content of the dichlorvos technical product, or the amount of raw medicines in a technical product containing pipe and the number of the technical product containing pipes in a smoke agent can be adjusted according to the types, the application areas and the using periods of crops.

In a preferred embodiment, the dichlorvos smoke formulation further comprises an overwrap moisture barrier 1. The outer package moisture-proof device 1 is not limited in the invention and can be a bag or a box, the outer package moisture-proof device 1 is sleeved on the outermost layer to wrap other parts of the smoke agent, and the function of the outer package moisture-proof device is to ensure that the smoke agent can not absorb moisture when stored under humid climatic conditions.

In some embodiments, a second propellant is also filled in the ignition charge pipe 4, and the second propellant is prepared from 45-60 parts by weight of potassium nitrate, 12-18 parts by weight of sulfur, 20-26 parts by weight of kaolin, 23-53 parts by weight of ammonium chloride and 24-36 parts by weight of bagasse powder; preferably, the raw materials for preparing the second fuel comprise 53 parts of potassium nitrate, 15 parts of sulfur, 23 parts of kaolin, 38 parts of ammonium chloride and 30 parts of bagasse powder.

In some embodiments, the preparation raw materials of the first fuel comprise, by weight, 75-105 parts of potassium perchlorate, 37-52 parts of sugarcane powder and 12-18 parts of carbon powder; preferably, the preparation raw materials of the first fuel comprise 90 parts of potassium perchlorate, 45 parts of sugarcane powder and 15 parts of carbon powder.

In some embodiments, the first chemical layer contains a third chemical, and the third chemical is prepared from 12-18 parts by weight of red phosphorus, 45-60 parts by weight of potassium perchlorate, 22-37 parts by weight of sugarcane powder, 4.5-10.5 parts by weight of a binder and 30-60 parts by weight of water; preferably, the raw materials for preparing the third fuel comprise 15 parts of red phosphorus, 52 parts of potassium perchlorate, 30 parts of sugarcane powder, 7.5 parts of adhesive and 45 parts of water.

In some embodiments, the second chemical layer contains a fourth chemical, and the fourth chemical is prepared from 45-75 parts by weight of potassium nitrate, 12-18 parts by weight of sulfur, 20-34 parts by weight of sugarcane powder, 4-8 parts by weight of a binder and 30-60 parts by weight of water; preferably, the preparation raw materials of the fourth fuel comprise 60 parts of potassium nitrate, 15 parts of sulfur, 25 parts of sugarcane powder, 6 parts of adhesive and 45 parts of water.

Kaolin is a non-metal mineral product, is clay and claystone which mainly comprises kaolinite clay minerals, is in a white, fine and soft clay shape, and has good physical and chemical properties such as plasticity, fire resistance and the like. The kaolin clay used as the flame retardant in the present invention can be obtained commercially, for example, commercially available kaolin clay includes but is not limited to those having a product number XY-15 (fineness 1250 mesh) which are obtained from mineral powder processing plants in the Piaoning county.

Sugarcane contains abundant sugar and water, and also contains substances such as vitamins, fat, protein, organic acid, calcium, iron and the like, the sugarcane powder is obtained by peeling stems of the sugarcane, crushing the stems by using a crusher, and sieving the stems, and can be obtained by commercial products, such as the commercially available sugarcane powder including but not limited to products purchased from Xian Qingzhi biotechnology limited.

Bagasse is a main byproduct in sugar industry, is a main part left after mechanical pressing of sugarcane, belongs to agricultural solid waste, mainly contains lignin, cellulose, hemicellulose, protein, coarse ash, pectin, fat and sugar, and has a spongy structure, a large water absorption capacity and a strong water retention capacity. The bagasse powder in the present invention is a powder having a particle size of less than 400 mesh obtained by pulverizing bagasse by a pulverizer and sieving, and the bagasse can be obtained commercially, for example, commercially available bagasse includes, but is not limited to, a product (water absorption of 60% and pH of 5) purchased from the ministry of agricultural and sideline products purchased from agriculture and love of nanning.

In the invention, the potassium perchlorate is used as the combustion improver in the first fuel for preparing the chemical tobacco, and the chemical property of the combustion improver is more stable than that of the potassium chlorate used in the prior art, and the mechanical sensitivity is low, so that the explosion and combustion are not easy to occur in the storage and transportation process of the smoke agent, and the use safety of the smoke agent is improved. In addition, in order to ensure the smoke rate of the smoke agent when potassium perchlorate is used as a combustion improver, the sugarcane powder is used in the first fuel, the third fuel and the fourth fuel to replace the traditional sulfur and realgar, so that on one hand, the pollution caused by sulfur dioxide released by sulfur combustion and the danger caused by the fact that the realgar is oxidized into the highly toxic arsenic trioxide are avoided, on the other hand, the sugarcane powder contains a large amount of cellulose and sugar, the carbon-hydrogen specific gravity of the sugarcane powder is high, the negative oxygen balance is large, more gas is generated under the condition of the same oxygen content, the smoke rate after the smoke agent is ignited is improved, and the strong explosive force generated after the smoke agent is ignited is beneficial to rapidly diffusing and drifting gasified smoke to all corners in an application range, so that the effective components of dichlorvos are rapidly acted on plants, and the loss of the dichlors in the diffusion process is reduced.

In some embodiments, the weight ratio of the dichlorvos technical to the heat stabilizer to the synergist is 1: (0.25-0.4): (0.05-0.25); preferably, the weight ratio of the dichlorvos technical to the heat stabilizer to the synergist is 1: 0.3: 0.1.

in some embodiments, the thermal stabilizer is a cyclodextrin, preferably the cyclodextrin is β -cyclodextrin.

Cyclodextrin, CD (Cyclodextrin) for short, is a general name of a series of cyclic oligosaccharides produced by amylose under the action of cyclodextrin glucosyltransferase produced by bacillus, and is classified into α -cyclodextrin, β -cyclodextrin and gamma-cyclodextrin, wherein the spatial structure of β -cyclodextrin molecule is in a circular hollow cylinder shape, the opening of the gap and the exterior of the gap contain a large amount of hydroxyl groups, and the interior of the gap is hydrophilic and hydrophobic, β -cyclodextrin can be obtained commercially in the present invention, for example, β -cyclodextrin is commercially available, including but not limited to products (99% content of active substance) purchased from Siemens Mao bioscience.

In some embodiments, the potentiator is a gemini surfactant.

In a preferred embodiment, the gemini surfactant is a sulfonate gemini surfactant.

A gemini surfactant, also called gemini surfactant or gemini surfactant, is a surfactant formed by linking two or more same or almost same surfactant monomers together through chemical bonds with amphiphilic components at or near a hydrophilic head group by a linking group. The hydrophilic group of the gemini surfactant is usually a polar group, such as a cationic group such as quaternary ammonium salt, amide, amine, etc., or an anionic group such as carboxylate, sulfate, sulfonate, etc., or a nonionic group such as glycoside, polyol, etc.

The sulfonate gemini surfactant is selected from 2, 4-dodecyl ether-1, 5-benzene dimethyl sulfonic acid, dihydric alcohol sodium diester succinate, sodium diisooctyl succinate sulfonate, 1, 4-butanediol polyoxyethylene ether disuccinate (3) n-octyl mixed sodium diester sulfonate, 1, 4-butanediol polyoxyethylene ether disuccinate (3) sec-octyl mixed sodium diester sulfonate, one or more of 1, 4-butanediol disuccinic acid polyoxyethylene ether (3) isooctyl mixed diester sodium sulfonate, 1, 4-butanediol disuccinic acid polyoxyethylene ether (7) n-octyl mixed diester sodium sulfonate, 1, 4-butanediol disuccinic acid polyoxyethylene ether (7) sec-octyl mixed diester sodium sulfonate and 1, 4-butanediol disuccinic acid polyoxyethylene ether (7) isooctyl mixed diester sodium sulfonate; preferably, the sulfonate gemini surfactant is sodium diisooctyl succinate sulfonate, which can be obtained commercially, for example, the commercially available sodium diisooctyl succinate sulfonate includes but is not limited to the product of OT-50 (CAS number: 577-11-7) available from Nantonne Runsheng chemical Co., Ltd.

In the invention, a certain amount of β -cyclodextrin is added into the dichlorvos technical, and the cavity structure of the β -cyclodextrin forms an inclusion complex with the dichlorvos technical, thereby greatly improving the thermal stability of the dichlorvos technical and ensuring that the dichlorvos technical is not easy to decompose under the temperature condition of smoke agent combustion.

However, on the one hand, β -cyclodextrin has poor solubility, smoke formed after gasification cannot be well adsorbed on plant leaf surfaces, on the other hand, molecules of dichlorvos are included in cavities of β -cyclodextrin, although β -cyclodextrin inclusion pesticide can play a role of slow release, dichlorvos are decomposed, particularly dichlorvos which are gasified into smoke are more easily decomposed, and therefore, it is required to ensure that the smoke of the gasified dichlorvos rapidly diffuses and drifts and is uniformly attached to plant surfaces.

The invention also provides a preparation method of the larval firecracker, which comprises the following steps:

In the invention, the carrier materials of the first medicine layer and the second medicine layer are not limited, and can be paper or cloth, and the carrier materials mainly play a role in loading the third fuel and the fourth fuel.

The zipper gun contains inflammable and explosive components such as red phosphorus, potassium perchlorate and sulfur, and the danger of combustion and explosion is easy to occur during storage, so that in the process of preparing the zipper gun, water is added into the first fuel, the third fuel and the fourth fuel, so that the prepared fuel, the first fuel layer and the second fuel layer are in a wet state, the prepared zipper gun can be stored in the wet state, and the danger of combustion and explosion during the storage and transportation of the zipper gun is avoided.

The dichlorvos smoke agent is prepared by drying the fire-pulling cannon in a wet state, and mixing the fire-pulling cannon with the ignition powder pipe, the box cover, the primary medicine containing pipe, the outer packaging damp-proof device and the like when in use.

Examples

Example 1

The embodiment 1 provides a dichlorvos smoke agent as shown in the attached drawing 1, the smoke agent comprises a priming powder tube 4, a pulling cannon 6, a primary medicine containing tube 5, a box cover 3 and an outer packaging moisture-proof device 1, the box cover 3 and the priming powder tube 4 are connected in a jogged mode, a cavity is formed between the two, the pulling cannon is arranged in the center of the cavity, the primary medicine containing tube 5 is arranged in the cavity and evenly distributed around the pulling cannon 6, the pulling cannon 6 comprises a pull wire 2, a first medicine layer 9, a second medicine layer 10 and a packaging layer 11 as shown in the attached drawing 2, a first fuel is covered on the outer layer of one end of the pull wire 2 and used as a medicine twist 8, the first medicine layer 9 is covered on the medicine twist 8, the second medicine layer 10 is covered on the first medicine layer 9, the packaging layer 11 is covered on the second medicine layer 10, the other end of the pull wire 2 is exposed out of the packaging layer 11, 80 wt% of dichlorvos, β -dioctyl succinate and the sodium sulfonate is 1.3: 3.

The ignition charge pipe 4 is also internally provided with a second fuel, and the preparation raw materials of the second fuel comprise 53 parts of potassium nitrate, 15 parts of sulfur, 23 parts of kaolin, 38 parts of ammonium chloride and 30 parts of bagasse powder according to parts by weight.

According to parts by weight, the preparation raw materials of the first fuel comprise 90 parts of potassium perchlorate, 45 parts of sugarcane powder and 15 parts of carbon powder.

The first chemical layer contains a third chemical, and the preparation raw materials of the third chemical comprise, by weight, 15 parts of red phosphorus, 52 parts of potassium perchlorate, 30 parts of sugarcane powder, 7.5 parts of an adhesive and 45 parts of water.

The second medicine layer contains a fourth medicine, and the preparation raw materials of the fourth medicine comprise, by weight, 60 parts of potassium nitrate, 15 parts of sulfur, 25 parts of sugarcane powder, 6 parts of an adhesive and 45 parts of water.

The 80 wt% of dichlorvos technical product is purchased from Rui agricultural chemical engineering and technology limited company, the kaolin is purchased from Xingyuan mineral powder processing factory in Lingshu county, the product number is XY-15, the sugarcane powder is purchased from Xian Qingzhi biotechnology limited company, the bagasse is purchased from Ming-ai-purchased agricultural and sideline product Ming-Ming, the β -cyclodextrin is purchased from Xian Longmao biotechnology limited company, and the sodium diisooctyl succinate sulfonate is purchased from Nantong Chen-run-Yin chemical industry limited company.

Example 2

The embodiment 2 provides a dichlorvos smoke agent as shown in the attached drawing 1, the smoke agent comprises a priming powder tube 4, a pulling cannon 6, a primary medicine containing tube 5, a box cover 3 and an outer packaging moisture-proof device 1, the box cover 3 and the priming powder tube 4 are connected in a jogged mode, a cavity is formed between the two, the pulling cannon is arranged in the center of the cavity, the primary medicine containing tube 5 is arranged in the cavity and evenly distributed around the pulling cannon 6, the pulling cannon 6 comprises a pull wire 2, a first medicine layer 9, a second medicine layer 10 and a packaging layer 11 as shown in the attached drawing 2, a first fuel is covered on the outer layer of one end of the pull wire 2 and used as a medicine twist 8, the first medicine layer 9 is covered on the medicine twist 8, the second medicine layer 10 is covered on the first medicine layer 9, the packaging layer 11 is covered on the second medicine layer 10, the other end of the pull wire 2 is exposed out of the packaging layer 11, 80 wt% of dichlorvos, β -dioctyl succinate and the sodium sulfonate is 25.05: 25.

The ignition charge pipe 4 is also internally provided with a second fuel, and the preparation raw materials of the second fuel comprise, by weight, 45 parts of potassium nitrate, 12 parts of sulfur, 20 parts of kaolin, 23 parts of ammonium chloride and 24 parts of bagasse powder.

According to parts by weight, the preparation raw materials of the first fuel comprise 75 parts of potassium perchlorate, 37 parts of sugarcane powder and 12 parts of carbon powder.

The first chemical layer contains a third chemical, and the preparation raw materials of the third chemical comprise, by weight, 12 parts of red phosphorus, 45 parts of potassium perchlorate, 22 parts of sugarcane powder, 4.5 parts of an adhesive and 30 parts of water.

The second medicine layer contains a fourth medicine, and the preparation raw materials of the fourth medicine comprise, by weight, 45 parts of potassium nitrate, 12 parts of sulfur, 20 parts of sugarcane powder, 4 parts of an adhesive and 30 parts of water.

Example 3

The embodiment 3 provides a dichlorvos smoke agent as shown in the attached drawing 1, the smoke agent comprises a priming powder tube 4, a pulling cannon 6, a primary medicine containing tube 5, a box cover 3 and an outer packaging moisture-proof device 1, the box cover 3 and the priming powder tube 4 are connected in a jogged mode, a cavity is formed between the two, the pulling cannon is arranged in the center of the cavity, the primary medicine containing tube 5 is arranged in the cavity and evenly distributed around the pulling cannon 6, the pulling cannon 6 comprises a pull wire 2, a first medicine layer 9, a second medicine layer 10 and a packaging layer 11 as shown in the attached drawing 2, a first fuel is covered on the outer layer of one end of the pull wire 2 and used as a medicine twist 8, the first medicine layer 9 is covered on the medicine twist 8, the second medicine layer 10 is covered on the first medicine layer 9, the packaging layer 11 is covered on the second medicine layer 10, the other end of the pull wire 2 is exposed out of the packaging layer 11, 80 wt% of dichlorvos, β -dioctyl succinate and sodium sulfonate are contained in the primary medicine containing tube 5, and the weight ratio of 0.4: 25.

The ignition charge pipe 4 is also internally provided with a second fuel, and the preparation raw materials of the second fuel comprise, by weight, 60 parts of potassium nitrate, 18 parts of sulfur, 26 parts of kaolin, 53 parts of ammonium chloride and 36 parts of bagasse powder.

The preparation raw materials of the first fuel comprise 105 parts of potassium perchlorate, 52 parts of sugarcane powder and 18 parts of carbon powder by weight.

The first chemical layer contains a third chemical, and the preparation raw materials of the third chemical comprise, by weight, 18 parts of red phosphorus, 60 parts of potassium perchlorate, 37 parts of sugarcane powder, 10.5 parts of an adhesive and 60 parts of water.

The second medicine layer contains a fourth medicine, and the preparation raw materials of the fourth medicine comprise, by weight, 75 parts of potassium nitrate, 18 parts of sulfur, 34 parts of sugarcane powder, 8 parts of an adhesive and 60 parts of water.

Example 4

The embodiment 4 provides a dichlorvos smoke agent as shown in the attached drawing 1, the smoke agent comprises a priming powder tube 4, a pulling cannon 6, a primary medicine containing tube 5, a box cover 3 and an outer packaging moisture-proof device 1, the box cover 3 and the priming powder tube 4 are connected in a jogged mode, a cavity is formed between the two, the pulling cannon is arranged in the center of the cavity, the primary medicine containing tube 5 is arranged in the cavity and evenly distributed around the pulling cannon 6, the pulling cannon 6 comprises a pull wire 2, a first medicine layer 9, a second medicine layer 10 and a packaging layer 11 as shown in the attached drawing 2, a first fuel is covered on the outer layer of one end of the pull wire 2 and used as a medicine twist 8, the first medicine layer 9 is covered on the medicine twist 8, the second medicine layer 10 is covered on the first medicine layer 9, the packaging layer 11 is covered on the second medicine layer 10, the other end of the pull wire 2 is exposed out of the packaging layer 11, 80 wt% of dichlorvos, β -dioctyl succinate and the sodium sulfonate is 1.3: 3.

According to parts by weight, the preparation raw materials of the first fuel comprise 50 parts of potassium perchlorate, 45 parts of sugarcane powder and 15 parts of carbon powder.

The first chemical layer contains a third chemical, and the preparation raw materials of the third chemical comprise, by weight, 15 parts of red phosphorus, 30 parts of potassium perchlorate, 30 parts of sugarcane powder, 7.5 parts of an adhesive and 45 parts of water.

Example 5

The embodiment 5 provides a dichlorvos smoke agent as shown in the attached drawing 1, the smoke agent comprises a priming powder tube 4, a pulling cannon 6, a primary medicine containing tube 5, a box cover 3 and an outer packaging moisture-proof device 1, the box cover 3 and the priming powder tube 4 are connected in a jogged mode, a cavity is formed between the two, the pulling cannon is arranged in the center of the cavity, the primary medicine containing tube 5 is arranged in the cavity and evenly distributed around the pulling cannon 6, the pulling cannon 6 comprises a pull wire 2, a first medicine layer 9, a second medicine layer 10 and a packaging layer 11 as shown in the attached drawing 2, a first fuel is covered on the outer layer of one end of the pull wire 2 and used as a medicine twist 8, the first medicine layer 9 is covered on the medicine twist 8, the second medicine layer 10 is covered on the first medicine layer 9, the packaging layer 11 is covered on the second medicine layer 10, the other end of the pull wire 2 is exposed out of the packaging layer 11, 80 wt% of dichlorvos, β -dioctyl succinate and the sodium sulfonate is 1.3: 3.

According to parts by weight, the preparation raw materials of the first fuel comprise 90 parts of potassium chlorate, 45 parts of sugarcane powder and 15 parts of carbon powder.

The first chemical layer contains a third chemical, and the preparation raw materials of the third chemical comprise, by weight, 15 parts of red phosphorus, 52 parts of potassium chlorate, 30 parts of sugarcane powder, 7.5 parts of an adhesive and 45 parts of water.

Example 6

The embodiment 6 provides a dichlorvos smoke agent as shown in the attached drawing 1, the smoke agent comprises a priming powder tube 4, a gun 6, a primary medicine containing tube 5, a box cover 3 and an outer packaging moisture-proof device 1, the box cover 3 and the priming powder tube 4 are connected in a jogged mode, a cavity is formed between the two, the gun is arranged in the center of the cavity, the primary medicine containing tube 5 is arranged in the cavity and evenly distributed around the gun 6, as shown in the drawing 2, the gun 6 comprises a stay wire 2, a first medicine layer 9, a second medicine layer 10 and a packaging layer 11, a first fuel is covered on the outer layer of one end of the stay wire 2 and used as a medicine twist 8, the first medicine layer 9 is covered on the medicine twist 8, the second medicine layer 10 is covered on the first medicine layer 9, the packaging layer 11 is covered on the second medicine layer 10, the other end of the stay wire 2 is exposed out of the packaging layer 11, 80 wt% of dichlorvos, β -dioctyl succinate and the sodium sulfonate is contained in the primary medicine containing tube 5, and the weight ratio of 1.3: 0.3.

According to parts by weight, the preparation raw materials of the first fuel comprise 90 parts of potassium perchlorate, 25 parts of sugarcane powder and 15 parts of carbon powder.

The first chemical layer contains a third chemical, and the preparation raw materials of the third chemical comprise, by weight, 15 parts of red phosphorus, 52 parts of potassium perchlorate, 10 parts of sugarcane powder, 7.5 parts of an adhesive and 45 parts of water.

The second medicine layer contains a fourth medicine, and the preparation raw materials of the fourth medicine comprise, by weight, 60 parts of potassium nitrate, 15 parts of sulfur, 10 parts of sugarcane powder, 6 parts of an adhesive and 45 parts of water.

Example 7

The embodiment 7 provides a dichlorvos smoke agent as shown in the attached drawing 1, the smoke agent comprises a priming powder tube 4, a pulling cannon 6, a primary medicine containing tube 5, a box cover 3 and an outer packaging moisture-proof device 1, the box cover 3 and the priming powder tube 4 are connected in a jogged mode, a cavity is formed between the two, the pulling cannon is arranged in the center of the cavity, the primary medicine containing tube 5 is arranged in the cavity and evenly distributed around the pulling cannon 6, the pulling cannon 6 comprises a pull wire 2, a first medicine layer 9, a second medicine layer 10 and a packaging layer 11 as shown in the attached drawing 2, a first fuel is covered on the outer layer of one end of the pull wire 2 and used as a medicine twist 8, the first medicine layer 9 is covered on the medicine twist 8, the second medicine layer 10 is covered on the first medicine layer 9, the packaging layer 11 is covered on the second medicine layer 10, the other end of the pull wire 2 is exposed out of the packaging layer 11, 80 wt% of dichlorvos, β -dioctyl succinate and the sodium sulfonate is 1.3: 3.

According to parts by weight, the preparation raw materials of the first fuel comprise 90 parts of potassium perchlorate, 45 parts of sulfur and 15 parts of carbon powder.

The first medicine layer contains a third fuel, and the preparation raw materials of the third fuel comprise, by weight, 15 parts of red phosphorus, 52 parts of potassium perchlorate, 30 parts of sulfur, 7.5 parts of an adhesive and 45 parts of water.

The second medicine layer contains a fourth medicine, and the preparation raw materials of the fourth medicine comprise, by weight, 60 parts of potassium nitrate, 40 parts of sulfur, 6 parts of an adhesive and 45 parts of water.

Example 8

The embodiment 8 provides a dichlorvos smoke agent as shown in the attached drawing 1, the smoke agent comprises a priming powder tube 4, a pulling cannon 6, a primary medicine containing tube 5, a box cover 3 and an outer packaging moisture-proof device 1, the box cover 3 and the priming powder tube 4 are connected in a jogged mode, a cavity is formed between the two, the pulling cannon is arranged in the center of the cavity, the primary medicine containing tube 5 is arranged in the cavity and evenly distributed around the pulling cannon 6, the pulling cannon 6 comprises a pull wire 2, a first medicine layer 9, a second medicine layer 10 and a packaging layer 11 as shown in the attached drawing 2, a first fuel is covered on the outer layer of one end of the pull wire 2 and used as a medicine twist 8, the first medicine layer 9 is covered on the medicine twist 8, the second medicine layer 10 is covered on the first medicine layer 9, the packaging layer 11 is covered on the second medicine layer 10, the other end of the pull wire 2 is exposed out of the packaging layer 11, 80 wt% of dichlorvos, β -dioctyl succinate and the sodium sulfonate is 1.3: 3.

The ignition powder tube 4 is also internally provided with a second fuel, and the preparation raw materials of the second fuel comprise 53 parts of potassium nitrate, 15 parts of sulfur, 23 parts of kaolin, 38 parts of ammonium chloride and 30 parts of rice husk powder according to parts by weight.

The 80 wt% of dichlorvos technical product is purchased from Rui agricultural chemical engineering and technology limited company, the kaolin is purchased from Xingyuan mineral powder processing factory in Lingshu county, the product number is XY-15, the sugarcane powder is purchased from Xian Qingzhi biotechnology limited company, the rice husk powder is purchased from Ming-ai-shopping agricultural and sideline product Ming-Ming, the β -cyclodextrin is purchased from Xian Longmao biotechnology limited company, and the sodium diisooctyl succinate sulfonate is purchased from Nantong Chen-run-in-chemical industry limited company.

Example 9

Referring to fig. 1, example 9 provides a dichlorvos fumigant, which comprises a priming powder tube 4, a pulling gun 6, a raw medicine containing tube 5, a box cover 3 and an outer packaging moisture-proof device 1; the box cover 3 and the ignition charge pipe 4 are connected in a joggle mode, and a cavity is formed between the box cover and the ignition charge pipe; the pulling cannon is arranged at the center of the cavity, and the raw medicine containing pipes 5 are arranged in the cavity and are uniformly distributed around the pulling cannon 6; as shown in fig. 2, the pulling gun 6 comprises a pulling wire 2, a first medicine layer 9, a second medicine layer 10 and a packaging layer 11; the outer layer of one end of the stay wire 2 is coated with a first fuel, which is used as a drug twist 8, the first drug layer 9 wraps the drug twist 8, the second drug layer 10 wraps the first drug layer 9, the packaging layer 11 wraps the second drug layer 10, and the other end of the stay wire 2 is exposed out of the packaging layer 11; 80 wt% of dichlorvos active compound and sodium diisooctyl succinate sulfonate are filled in the active compound containing tube 5, and the weight ratio of the dichlorvos active compound to the sodium diisooctyl succinate is 1: 0.1.

The 80 wt% of the dichlorvos technical material is purchased from Rui agricultural chemical engineering and technology Co., Ltd; the kaolin is purchased from Xingyuan mineral powder processing plants in Lingshou county, and the product number is XY-15; the sugarcane powder is purchased from Xian Qingzhi biotechnology limited; the bagasse is purchased from Ming's Ming and Ying Ming department of agricultural and sideline products; the sodium diisooctyl succinate sulfonate is purchased from Nantong Chen Runjiang chemical Co.

Example 10

The embodiment 10 provides a dichlorvos smoke agent as shown in the attached drawing 1, the smoke agent comprises a priming charge pipe 4, a pulling cannon 6, a primary medicine containing pipe 5, a box cover 3 and an outer package moisture-proof device 1, the box cover 3 and the priming charge pipe 4 are connected in a jogged mode, a cavity is formed between the two, the pulling cannon is arranged in the center of the cavity, the primary medicine containing pipe 5 is arranged in the cavity and evenly distributed around the pulling cannon 6, the pulling cannon 6 comprises a pull wire 2, a first medicine layer 9, a second medicine layer 10 and a packaging layer 11 as shown in the attached drawing 2, a first fuel is covered on the outer layer of one end of the pull wire 2 and used as a medicine twist 8, the first medicine layer 9 is covered on the medicine twist 8, the second medicine layer 10 is covered on the first medicine layer 9, the packaging layer 11 is covered on the second medicine layer 10, the other end of the pull wire 2 is exposed out of the packaging layer 11, 80 wt% of dichlorvos and β -cyclodextrin are filled in the primary medicine containing pipe 5, and the proportion of the dichlorvos is 0.3.

The 80 wt% of the dichlorvos technical product is purchased from Rinong chemical engineering and technology limited company, the kaolin is purchased from Xingyuan mineral powder processing factory in Lingshu county, the product number is XY-15, the sugarcane powder is purchased from Xian Qingzhi biotechnology limited company, the bagasse is purchased from Ming and auxiliary products of agriculture and sideline, of Nanning City, and the β -cyclodextrin is purchased from Xian Longmao biotechnology limited company.

Example 11

Referring to fig. 1, example 11 provides a dichlorvos fumigant comprising a primer tube 4, a labourer 6, a raw pesticide containing tube 5, a box cover 3, and an outer packing moisture-proof device 1; the box cover 3 and the ignition charge pipe 4 are connected in a joggle mode, and a cavity is formed between the box cover and the ignition charge pipe; the pulling cannon is arranged at the center of the cavity, and the raw medicine containing pipes 5 are arranged in the cavity and are uniformly distributed around the pulling cannon 6; as shown in fig. 2, the pulling gun 6 comprises a pulling wire 2, a first medicine layer 9, a second medicine layer 10 and a packaging layer 11; the outer layer of one end of the stay wire 2 is coated with a first fuel, which is used as a drug twist 8, the first drug layer 9 wraps the drug twist 8, the second drug layer 10 wraps the first drug layer 9, the packaging layer 11 wraps the second drug layer 10, and the other end of the stay wire 2 is exposed out of the packaging layer 11; 80 wt% of dichlorvos technical is filled in the technical containing tube 5.

The 80 wt% of the dichlorvos technical material is purchased from Rui agricultural chemical engineering and technology Co., Ltd; the kaolin is purchased from Xingyuan mineral powder processing plants in Lingshou county, and the product number is XY-15; the sugarcane powder is purchased from Xian Qingzhi biotechnology limited; the bagasse is purchased from Ming's Ming-ai-buying agricultural and sideline products Ming-Ming.

Example 12

The embodiment 12 provides a dichlorvos smoke agent as shown in the attached drawing 1, the smoke agent comprises a priming powder tube 4, a pulling cannon 6, a primary medicine containing tube 5, a box cover 3 and an outer package moisture-proof device 1, the box cover 3 and the priming powder tube 4 are connected in a jogged mode, a cavity is formed between the two, the pulling cannon is arranged in the center of the cavity, the primary medicine containing tube 5 is arranged in the cavity and evenly distributed around the pulling cannon 6, the pulling cannon 6 comprises a pull wire 2, a first medicine layer 9, a second medicine layer 10 and a packaging layer 11 as shown in the drawing 2, a first fuel is covered on the outer layer of one end of the pull wire 2 and used as a medicine twist 8, the first medicine layer 9 is covered on the medicine twist 8, the second medicine layer 10 is covered on the first medicine layer 9, the packaging layer 11 is covered on the second medicine layer 10, the other end of the pull wire 2 is exposed out of the packaging layer 11, 80 wt% of dichlorvos, β -cyclodextrin and sodium dodecyl benzene sulfonate are contained in the primary medicine containing tube 5, and the weight ratio of 0.3: 0.3.

The 80 wt% of dichlorvos technical product is purchased from Rinong chemical engineering and technology limited company, the kaolin is purchased from Xingyuan mineral powder processing factory in Lingshu county, the product number is XY-15, the sugarcane powder is purchased from Xian Qingzhi biotechnology limited company, the bagasse is purchased from Ming-ai-purchased agricultural and sideline product division of Nanning City, the β -cyclodextrin is purchased from the product of Xian Longmao biotechnology limited company, and the sodium dodecyl benzene sulfonate is purchased from Yanan Sheng-Jian-Ming-Industrial chemical company limited company.

The contents of the dichlorvos raw medicines in the raw medicine containing pipes in the above embodiments are the same, and the number of the raw medicine containing pipes in the smoking agent is the same.

Evaluation of Performance

1. Stability test of smoking agent

Referring to HG3631.1999 and the standard method established by food and agriculture organization of the United nations, the degradation rate of the effective component content of dichlorvos is tested by storing the smoke agent at (54 Shi 2) DEG C for 1 week which is equivalent to natural storage for 1 year under normal temperature condition, and storing the smoke agent for 2 weeks which is equivalent to natural storage for 2 years under normal temperature condition.

2. Quality evaluation of smoking agent

The smoke agent prepared in the embodiment 1-12 is put into a constant temperature oven (80 +/-2) DEG C, and observed for 1 time every 2 hours within 72 hours, if the smoke agent is spontaneously combusted, the quality is unqualified, and if the smoke agent is not spontaneously combusted, the quality is qualified.

3. Ignition rate test of smoke agent

20 dichlorvos smoke agents were prepared according to examples 1-12, and the number of smoke agents that were successfully ignited by the flame-out was recorded and the flame-out rate was calculated in the same manner.

4. Effective smoke formation rate test of smoke agent

Firstly, a dichlorvos smoke agent is placed in a cigarette box, 100ml of toluene is accurately absorbed and injected into each absorption bottle respectively, and the smoke agent is ignited after the device is connected. Starting the vacuum pump after 1min, controlling the air flow, and continuously, uniformly and stably bubbling the bubbles until no air appears. And (4) completely transferring the liquid in the absorption bottle into a 500ml volumetric flask, flushing the absorption bottle, the catheter and the smoke collection barrel by using toluene, merging the washing liquid into the volumetric flask, and fixing the volume to 500ml by using the toluene. And analyzing the content of the dichlorvos in the toluene absorption liquid by adopting high performance liquid chromatography.

The smoke formation rate X is calculated using the following formula:

wherein: d-toluene specific gravity;

m-the content (g) of dichlorvos in the dichlorvos smoke agent;

C ₁-the content of active ingredients in the absorption liquid;

C ₂-effective component content of dichlorvos in the dichlorvos smoke agent.

5. Indoor toxicity test

Collecting 3-4-year old larvae of Bombycis Mori, placing into insect cage with moso bamboo branches, inserting base of the moso bamboo branches into culture dish containing water, placing into relatively closed room, uniformly placing 3 dichlorvos smoke agent in the room, closing door after pulling and burning, opening door and window after 20min to discharge smoke, investigating 2h, 5h and 7h after pesticide application, and counting larval mortality.

Table 1 results of performance testing

As can be seen from the table 1, the potassium perchlorate is used for replacing the traditional potassium chlorate to be used as a preparation raw material of the fuel, so that the possibility of spontaneous combustion of the smoke agent is effectively reduced, and the smoke generating rate of the smoke agent is ensured by adjusting other fuel components and contents in the smoke agent, so that the smoke can be more effectively released and diffused to act on the surface of a plant; in addition, the cyclodextrin and the specific surfactant are added into the dichlorvos technical, so that the thermal stability of the dichlorvos technical and the adhesive force acting on the surface of plants are effectively improved, the utilization rate of the pesticide is effectively improved, and the control effect of the pesticide is enhanced.

The foregoing examples are merely illustrative and serve to explain some of the features of the method of the present invention. The appended claims are intended to claim as broad a scope as is contemplated, and the examples presented herein are merely illustrative of selected implementations in accordance with all possible combinations of examples. Accordingly, it is applicants' intention that the appended claims are not to be limited by the choice of examples illustrating features of the invention. Also, where numerical ranges are used in the claims, subranges therein are included, and variations in these ranges are also to be construed as possible being covered by the appended claims.

Claims

1. A dichlorvos smoke agent is characterized in that the smoke agent comprises a primer pipe, a pulling gun, a raw pesticide containing pipe and a box cover; the box cover and the ignition powder tube are connected in a tenon joint mode, and a cavity is formed between the box cover and the ignition powder tube; the pulling cannon is arranged at the center of the cavity, and the raw medicine containing pipes are arranged in the cavity and are uniformly distributed around the pulling cannon;

2. The dichlorvos smoke agent as defined in claim 1, wherein the priming powder tube is further filled with a second propellant, and the second propellant is prepared from 45-60 parts by weight of potassium nitrate, 12-18 parts by weight of sulfur, 20-26 parts by weight of kaolin, 23-53 parts by weight of ammonium chloride and 24-36 parts by weight of bagasse powder.

3. The dichlorvos smoke agent according to claim 1, wherein the first fuel comprises 75-105 parts by weight of potassium perchlorate, 37-52 parts by weight of sugarcane powder and 12-18 parts by weight of carbon powder.

4. The dichlorvos smoke agent as defined in claim 1, wherein the first layer contains a third fuel, and the third fuel is prepared from 12-18 parts by weight of red phosphorus, 45-60 parts by weight of potassium perchlorate, 22-37 parts by weight of sugarcane flour, 4.5-10.5 parts by weight of binder, and 30-60 parts by weight of water.

5. The dichlorvos smoke agent according to claim 1, wherein the second chemical layer contains a fourth chemical, and the fourth chemical is prepared from 45-75 parts by weight of potassium nitrate, 12-18 parts by weight of sulfur, 20-34 parts by weight of sugarcane flour, 4-8 parts by weight of a binder and 30-60 parts by weight of water.

6. The dichlorvos smoking agent as claimed in claim 1, wherein the weight ratio of the dichlorvos technical, the heat stabilizer and the synergist is 1: (0.25-0.4): (0.05-0.25).

7. The dichlorvos smoking agent of claim 6, wherein the thermal stabilizer is cyclodextrin.

8. The dichlorvos smoke agent of claim 6, wherein the synergist is a gemini surfactant.

9. The dichlorvos smoke agent of claim 8, wherein the gemini surfactant is a sulfonate gemini surfactant.

10. The dichlorvos fumigant according to any one of claims 1 to 9, wherein the preparation method of the larval cannon comprises the following steps: