Preparation method and equipment of biopesticide for preventing and treating rice diseases

Abstract

The invention belongs to the technical field of pesticide preparation, and particularly discloses a preparation method of a biopesticide for preventing and treating rice diseases, which comprises the following steps: S1, adding allicin, an emulsifier and a synergist into a mixing device, mixing to prepare a primary emulsion, and heating the primary emulsion to 45-60 DEG C; s2, adding water and a pH regulator into the primary emulsion, uniformly stirring again to prepare a medium emulsion, and controlling the medium emulsion at 45-60 DEG C; and S3, adding kasugamycin into the intermediate emulsion, and uniformly stirring to obtain the final emulsion. S4, finally, adding the final emulsion into a filtering device for filtering, and filtering out impurities to prepare the biopesticide. The device further comprises a mixing device and a filtering device; the filtering device is arranged below the mixing device; the mixing device comprises a mixed material heating assembly, a stirring assembly and a lifting assembly; the stirring assembly is arranged in the middle of the mixing heating assembly, and the lifting assembly is arranged on the outer side of the mixing heating assembly.

Description

Technical Field

[0001] The present invention relates to the technical field, and specifically to a preparation method and device for a biological pesticide for preventing and controlling rice diseases. Background Technique

[0002] There are more than 250 kinds of pests and diseases during the growth process of rice. More than 10 common diseases such as sheath blight, rice blast, and false smut of rice seriously affect the rice yield. For example, rice blast can cause a large reduction in production. In severe cases, the production can be reduced by 40%-50%, or even no harvest at all; bakanae disease of rice will cause the diseased grains not to germinate or emerge after sowing, and the diseased seedlings in the seedling stage are slender and tall, with poor root development, etc.

[0003] There are many reports on the research and application of biological control of rice pests and diseases abroad. Developed countries in Europe and America and international research institutions have proposed sustainable control technologies for pests and diseases mainly based on natural control and ecological control. The concept of biological control has gradually attracted global attention, prompting scientific research personnel to develop biological pesticides for preventing and controlling rice diseases.

[0004] The existing preparation methods of biological pesticides for preventing and controlling rice diseases usually add materials into a mixing device for mixing and stirring, and then filter to obtain them. However, the devices used for mixing and filtering are used separately, and it is more cumbersome to use. Summary of the Invention

[0005] The purpose of the present invention is to provide a preparation method and device for a biological pesticide for preventing and controlling rice diseases, so as to solve the problems raised in the above background technique.

[0006] To achieve the above purpose, the present invention provides the following technical solution: A preparation method for a biological pesticide for preventing and controlling rice diseases, including the following steps: S1. Add allicin, emulsifier and synergist into a mixing device to prepare a primary emulsion, and heat the primary emulsion to 45-60 °C.

[0007] S2. Then add water and a pH regulator to the primary emulsion and stir evenly again to prepare a middle emulsion, and control the middle emulsion at 45-60 °C.

[0008] S3. Then add kasugamycin to the middle emulsion and stir evenly to obtain the final emulsion.

[0009] S4. Finally, add the final emulsion to a filtering device for filtration, and filter out impurities to obtain the biological pesticide.

[0010] Preferably, the biological pesticide is composed of the following components: 1-40 parts of allicin, 15-30 parts of emulsifier, 1-10 parts of synergist, 0.3-0.5 parts of pH regulator, 1-20 parts of kasugamycin, and the balance is made up with water to 100%.

[0011] Preferably, the emulsifier is one or more of triphenylvinylphenol polyoxyethylene ether, alkylphenol formaldehyde resin polyoxyethylene ether, Tween 80, Tween 60, ethylene oxide-propylene oxide block polyether, or cashew phenol polyoxyethylene ether.

[0012] Preferably, the synergist is one or more of dodecyl hydroxypropyl phosphate betaine, betaine, polyether-modified polyorganosiloxane, lecithin, and azone.

[0013] Preferably, the pH regulator is one or more of citric acid, phosphoric acid, and hydrochloric acid.

[0014] In summary, the present application also includes a preparation device for a biological pesticide for controlling rice diseases, including a mixing device and a filtering device. The filtering device is arranged below the mixing device; the mixing device includes a mixing and heating component, a stirring component, and a lifting component; the stirring component is arranged in the middle of the mixing and heating component, and the lifting component is arranged outside the mixing and heating component.

[0015] Preferably, the mixing and heating component includes a tank body, an inner tank, and heating pipes; the inner tank is fixed inside the tank body, the heating pipes are coiled between the inner tank and the tank body, a feeding port and a water adding port are arranged above the tank body, a discharge port connected to the filtering device is arranged below the tank body, and a valve is arranged on the discharge port. The feeding port is used to add the component ingredients of the biological pesticide, including allicin, emulsifier, synergist, pH regulator, and kasugamycin. The water adding port is used for water supplement, and the discharge port is used to discharge the mixed final emulsion. The added ingredients are heated by the heating pipes to improve the mixing efficiency. Preferably, the stirring component includes a rotating rod, stirring blades, a scraper, and a driving motor; the rotating rod is located in the middle of the inner tank, the top end of the rotating rod penetrates through the tank body and is connected to the driving shaft of the driving motor, the stirring blades are fixed outside the rotating rod, the scraper is fixed at the end of the rotating rod, the scraper is L-shaped, a silica gel sheet is arranged on the surface of the scraper, the scraper contacts the inner wall of the inner tank, and a temperature measuring sensor is arranged at a position near the end of the rotating rod. The driving motor drives the rotating rod to rotate, and the rotating rod is used to mix and stir the biological pesticide in cooperation with the stirring blades. The scraper is provided to prevent the ingredients from adhering to the inner wall of the inner tank. The temperature measuring sensor is used to measure the temperature of the emulsion.

[0016] Preferably, the lifting component includes an electric push rod and a support plate fixed to the output end of the electric push rod. The electric push rod is fixed to the outer wall of the tank body, and the support plate is fixed to the driving motor. The electric push rod is started, so that the electric push rod expands and contracts, driving the support plate to move up and down, and the support plate drives the rotating rod to move up and down, thereby stirring the biological pesticide at different depths.

[0017] Preferably, the filtering device includes a filter frame, a sleeve, a filter barrel and a fixing rod. The filter frame is communicated with the discharge port. The sleeve is threadedly connected to the bottom of the filter frame. The filter barrel is arranged inside the filter frame. The fixing rod is fixed between the filter barrel and the sleeve. A discharge port is arranged at the bottom of the sleeve. The final emulsion is filtered by the filter barrel, and the filtered impurities remain in the filter barrel, while the biological pesticide is discharged from the discharge port.

[0018] Compared with the prior art, the beneficial effects of the present invention are as follows: By arranging a heating pipe between the tank body and the inner tank, the biological pesticide is heated by the heating pipe to cooperate with the stirring assembly for mixing and stirring, so as to improve the stirring effect. The mixed biological pesticide is discharged through the discharge port, and is directly filtered by the filtering device to improve the purity of the pesticide. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 is a schematic flow chart of the present invention; Figure 2 is a schematic three-dimensional structure of the present invention Figure 1 ; Figure 3 is a schematic three-dimensional structure of the present invention Figure 2 ; Figure 4 is a schematic partial sectional structure diagram of the present invention; Figure 5 is a schematic structure diagram of the filter barrel of the present invention.

[0020] In the figure: 100, tank body; 1001, feeding port; 1002, water adding port; 1003, discharge port; 102, inner tank; 103, heating pipe; 200, rotating rod; 2001, temperature measuring sensor; 201, stirring blade; 202, scraping plate; 203, driving motor; 300, electric push rod; 301, support plate; 400, filter frame; 401, sleeve; 4011, discharge port; 402, filter barrel; 403, fixing rod. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0021] The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art without creative efforts based on the embodiments of the present invention belong to the protection scope of the present invention.

[0022] In the description of the present invention, it should be noted that the orientation or positional relationship indicated by the terms "vertical", "upper", "lower", "horizontal", etc. is based on the orientation or positional relationship shown in the drawings. These are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation to the present invention.

[0023] In the description of the present invention, it should also be noted that unless otherwise clearly specified and limited, the terms "set", "installed", "connected", "connected to" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0024] Please refer to Figure 1 , the present invention provides a technical solution: a preparation method of a biological pesticide for preventing and controlling rice diseases, comprising the following steps: Step 1: Add allicin, emulsifier and synergist into a mixing device to prepare a primary emulsion, and heat the primary emulsion to 45 - 60 °C.

[0025] Step 2: Then add water and a pH regulator to the primary emulsion and stir evenly again to prepare a middle emulsion, and control the middle emulsion at 45 - 60 °C.

[0026] Step 3: Then add kasugamycin to the middle emulsion and stir evenly to obtain the final emulsion.

[0027] Step 4: Finally, add the final emulsion to a filtering device for filtration, filter out impurities to prepare the biological pesticide.

[0028] Furthermore, the biological pesticide is composed of the following components: 1 - 40 parts of allicin, 15 - 30 parts of emulsifier, 1 - 10 parts of synergist, 0.3 - 0.5 parts of pH regulator, 1 - 20 parts of kasugamycin, and the water is made up to 100%.

[0029] Furthermore, the emulsifier is one or several of triphenylvinylphenol polyoxyethylene ether, alkylphenol formaldehyde resin polyoxyethylene ether, Tween 80, Tween 60, ethylene oxide - propylene oxide block polyether or cashew phenol polyoxyethylene ether.

[0030] Furthermore, the synergist is one or several of dodecyl hydroxypropyl phosphate betaine, betaine, polyether - modified polyorganosiloxane, lecithin, azone.

[0031] Further, the pH regulator is one or several of citric acid, phosphoric acid, and hydrochloric acid.

[0032] In summary, please refer to Figures 2 - 3 , the present application also includes a preparation device for a biological pesticide for preventing and controlling rice diseases, including a mixing device and a filtering device, and the filtering device is arranged below the mixing device; the mixing device includes a mixing and heating component, a stirring component, and a lifting component; the stirring component is arranged in the middle of the mixing and heating component, and the lifting component is arranged outside the mixing and heating component.

[0033] Further, please refer to Figure 4 , the mixing and heating component includes a tank body 100, an inner tank 102, and a heating pipe 103; the inner tank 102 is fixed inside the tank body 100, the heating pipe 103 is coiled between the inner tank 102 and the tank body 100, a feeding port 1001 and a water adding port 1002 are arranged above the tank body 100, a discharge port 1003 connected to the filtering device is arranged below the tank body 100, and a valve is arranged on the discharge port 1003. The feeding port 1001 is used for adding the component ingredients of the biological pesticide, including allicin, emulsifier, synergist, pH regulator, and kasugamycin, the water adding port 1002 is used for water supplement, and the discharge port 1003 is used for discharging the mixed final emulsion. The heating pipe 103 heats the added ingredients to improve the mixing efficiency.

[0034] Further, please refer to Figure 4 , the stirring component includes a rotating rod 200, stirring blades 201, a scraper 202, and a driving motor 203; the rotating rod 200 is located in the middle of the inner tank 102, the top end of the rotating rod 200 penetrates through the tank body 100 and is connected to the driving shaft of the driving motor 203, the stirring blades 201 are fixed outside the rotating rod 200, the scraper 202 is fixed at the end of the rotating rod 200, the scraper 202 is L-shaped, a silica gel sheet is arranged on the surface of the scraper 202, the scraper 202 is in contact with the inner wall of the inner tank 102, and a temperature measuring sensor 2001 is arranged at a position of the rotating rod 200 close to the end. The driving motor 203 drives the rotating rod 200 to rotate, and the rotating rod 200 is used to mix and stir the biological pesticide in cooperation with the stirring blades 201. The scraper 202 is arranged to prevent the ingredients from adhering to the inner wall of the inner tank 102. The temperature measuring sensor 2001 is used to measure the temperature of the emulsion.

[0035] Further, please refer to Figure 2 , the lifting component includes an electric push rod 300 and a support plate 301 fixed to the output end of the electric push rod 300. The electric push rod 300 is fixed to the outer side wall of the tank body 100, and the support plate 301 is fixed to the driving motor 203. When the electric push rod 300 is started, the electric push rod 300 expands and contracts, driving the support plate 301 to move up and down, so that the support plate 301 drives the rotating rod 200 to move up and down, thereby stirring the biological pesticide at different depths.

[0036] Please refer to Figures 4 - 5 , the filtering device includes a filter frame 400, a sleeve 401, a filter barrel 402 and a fixing rod 403. The filter frame 400 is communicated with the discharge port 1003. The sleeve 401 is threadedly connected to the bottom of the filter frame 400. The filter barrel 402 is arranged inside the filter frame 400. The fixing rod 403 is fixed between the filter barrel 402 and the sleeve 401. A discharge port 4011 is arranged at the bottom of the sleeve 401. The final emulsion is filtered by the filter barrel 402, and the filtered impurities remain in the filter barrel 402, while the biological pesticide is discharged from the discharge port 4011 In summary, when this device is in use, only allicin, Tween 80, alkylphenol formaldehyde resin polyoxyethylene ether, and dodecyl hydroxypropyl phosphate betaine need to be added into the tank body 100, and then the driving motor 203 is started, so that the driving motor 203 drives the rotating rod 200 to rotate, and the stirring blades 201 on the rotating rod 200 are used to mix and stir these ingredients to prepare the primary emulsion. During this process, the heating tube 103 is started, so that the heating tube 103 heats the inner tank 102, and the inner tank 102 is used to heat the internal ingredients to heat the primary emulsion to 45-60°C

[0037] After the primary emulsion is prepared, water and citric acid are added and stirred continuously. During this process, the temperature is maintained at 45-60°C to prepare the intermediate emulsion

[0038] Then, kasugamycin is added and stirred until it is completely dissolved to prepare the final emulsion. Then, the discharge port 1003 is opened, so that the final emulsion is discharged into the filter frame 400, and the internal filter barrel 402 is used to filter the final emulsion. The filtered impurities remain in the filter barrel 402, while the biological pesticide is discharged from the discharge port 4011. When it is necessary to process the impurities in the filter barrel 402, only the sleeve 401 needs to be rotated to screw the sleeve 401 off the filter frame 400, and the operation is simple and easy to understand

[0039] It should be noted that: the entire device is controlled by the total control button. Since the devices matched with the control button are common devices and belong to the existing mature technologies, the electrical connection relationship and the specific circuit structure are not described in detail here

[0040] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirits of the present invention. The scope of the present invention is defined by the appended claims and their equivalents

Claims

1. A method for preparing a biological pesticide for preventing and controlling rice diseases, characterized in that: The following steps are involved: S1, adding allicin, emulsifier and synergist into a mixing device to prepare a colostrum, and heating the colostrum to 45-60° C.; S2, then add water and pH regulator to the primary emulsion and stir again to prepare the intermediate emulsion, and control the intermediate emulsion at 45-60°C; S3, then adding kasugamycin to the intermediate emulsion and stirring evenly to obtain the final emulsion; S4. Finally, the final emulsion is added into a filtering device for filtering to filter out the biological pesticide with impurities.

2. The method for preparing a biological pesticide for preventing and controlling rice diseases according to claim 1, characterized in that: The biological pesticide is composed of the following components: 1-40 parts of allicin, 15-30 parts of emulsifier, 1-10 parts of synergist, 0.3-0.5 parts of pH regulator, 1-20 parts of kasugamycin, and the balance is made up to 100% with water.

3. The method for preparing a biological pesticide for preventing and controlling rice diseases according to claim 1, characterized in that: The emulsifier is one or more of tristyrylphenol polyoxyethylene ether, alkylphenol formaldehyde resin polyoxyethylene ether, Tween 80, Tween 60, ethylene oxide propylene oxide block polyether or cardanol polyoxyethylene ether.

4. The method for preparing a biological pesticide for preventing and controlling rice diseases according to claim 1, characterized in that: The synergist is one or more of dodecyl hydroxypropyl phosphate betaine, betaine, polyether modified polyorganosiloxane, lecithin and azone.

5. The method for preparing a biological pesticide for preventing and controlling rice diseases according to claim 1, characterized in that: The pH regulator is one or more of citric acid, phosphoric acid and hydrochloric acid.

6. The device used in the method for preparing a biological pesticide for preventing and controlling rice diseases according to claims 1-5, characterized in that: It comprises a mixing device and a filtering device, wherein the filtering device is arranged below the mixing device; The mixing device includes a mixing and heating component, a stirring component and a lifting component; The stirring component is arranged in the middle of the mixing and heating component, and the lifting component is arranged outside the mixing and heating component.

7. The device used in the method for preparing a biological pesticide for preventing and controlling rice diseases according to claim 6, characterized in that: The mixing heating assembly comprises a tank body (100), an inner tank (102) and a heating tube (103); the inner tank (102) is fixed inside the tank body (100); the heating tube (103) is arranged between the inner tank (102) and the tank body (100); a feeding port (1001) and a water feeding port (1002) are arranged above the tank body (100); a discharge port (1003) connected to a filtering device is arranged below the tank body (100); and a valve is arranged on the discharge port (1003).

8. The device used in the method for preparing a biological pesticide for preventing and controlling rice diseases according to claim 6, characterized in that: The stirring assembly comprises a rotating rod (200), a stirring blade (201), a scraper (202) and a driving motor (203); the rotating rod (200) is located in the middle of the inner container (102); the top end of the rotating rod (200) penetrates the tank body (100) and is connected to the driving shaft of the driving motor (203); the stirring blade (201) is fixed to the outside of the rotating rod (200); the scraper (202) is fixed to the end of the rotating rod (200); the scraper (202) is L-shaped; a silicone sheet is provided on the surface of the scraper (202); the scraper (202) contacts the inner wall of the inner container (102); and a temperature sensor (2001) is provided near the end of the rotating rod (200).

9. The device used in the method for preparing a biological pesticide for preventing and controlling rice diseases according to claim 6, characterized in that: The lifting assembly comprises an electric push rod (300) and a support plate (301) fixed to the output end of the electric push rod (300); the electric push rod (300) is fixed to the outer wall of the tank body (100); and the support plate (301) is fixed to the driving motor (203).

10. The device used in the method for preparing a biological pesticide for preventing and controlling rice diseases according to claim 6, characterized in that: The filtering device comprises a filter frame (400), a sleeve (401), a filter barrel (402) and a fixing rod (403); the filter frame (400) is connected to a discharge port (1003); the sleeve (401) is threadedly connected to the bottom of the filter frame (400); the filter barrel (402) is arranged inside the filter frame (400); the fixing rod (403) is fixed between the filter barrel (402) and the sleeve (401); and a discharge port (4011) is arranged at the bottom of the sleeve (401).

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