Composite herbicide composition and preparation method thereof

Abstract

The invention belongs to the technical field of herbicides, and particularly relates to a composite herbicide composition and a preparation method thereof.The composite herbicide composition is prepared from 10 parts of oxyfluorfen, 10 parts of prometryn, 46 parts of butachlor, 10 parts of tristyrylphenol polyoxyethylene ether, 2 parts of castor oil polyoxyethylene ether, 1 part of N, N-dimethylformamide and the balance methyl oleate; wherein the flushing device comprises a batching kettle and a first fixed disc; the first fixed disc is detachably mounted at the top of the batching kettle; an adjustable cleaning assembly is arranged in the middle of the first fixing disc. The batching kettle and the first fixed disc are arranged to form a flushing structure, so that the function of flushing the interior of the batching kettle is realized, the condition that the inner side wall of the batching kettle is dirty due to the fact that a reaction mixture is adhered to the interior of the batching kettle is solved, the cleanliness of the interior of the batching kettle is improved, and the reaction mixture adhered to the interior of the batching kettle is reduced; and preparation is made for next production.

Description

Technical Field

[0001] The invention belongs to the technical field of herbicides, in particular to a composite herbicide composition and a preparation method thereof. Background Art

[0002] Herbicides are a class of chemicals that can be used to control or kill weeds and protect crops from weed competition and interference. Their mechanism of action is to disrupt the growth and development of plants by interfering with the biochemical processes within weed cells.

[0003] A composite herbicide is a composition in which other substances that help to kill weeds are added to the herbicide. The preparation steps of the composite herbicide include preparing corresponding raw materials, solvents, adjuvants or other active ingredients, dissolving the active ingredients in the solvent, adding the adjuvants and stirring to mix evenly, then purifying the product by filtering, and other additives can be added as appropriate according to usage requirements. After mixing evenly, the product is packaged and sterilized.

[0004] In the existing composite herbicide technology, when producing herbicides, a batching kettle is needed to mix the raw materials. After each batch of products is produced, the batching kettle needs to be cleaned to facilitate the next use. The manual cleaning operation steps are relatively cumbersome.

[0005] To this end, the present invention provides a composite herbicide composition and a preparation method thereof. Summary of the invention

[0006] In order to make up for the deficiencies of the prior art, at least one technical problem raised in the background technology is solved.

[0007] The technical solution adopted by the present invention to solve the technical problem is: a composite herbicide composition described in the present invention has the following formula: 10 parts of oxyfluorfen, 10 parts of prometryn, 46 parts of butachlor, 10 parts of tristyrylphenol polyoxyethylene ether, 2 parts of castor oil polyoxyethylene ether, 1 part of N,N-dimethylformamide, and methyl oleate makes up the balance.

[0008] Preferably, a method for preparing a composite herbicide composition comprises the following specific steps: S1, weighing the raw materials according to the ratio of the product formula; S2, putting the weighed N,N-dimethylformamide, methyl oleate, prometryn, and oxyfluorfen technical into a clean batching kettle, mixing and stirring, and then adding measured butachlor, tristyrylphenol polyoxyethylene ether, and castor oil polyoxyethylene ether, and stirring evenly; S3, sampling and testing the product, and entering the filling process after passing the test, and the unqualified It needs to be returned for re-mixing; S4. Filter the mixed raw materials before filling to remove trace insoluble impurities suspended in the emulsion preparation; S5. Adjust the filling volume and accuracy of the filling line, and use the filling machine to fill the product; S6. Pack the filled products into boxes, put in the certificate and pack them; S7. Inspect the packaging of the products, and return the unqualified ones for packaging or mixing; S8. After each batch of production is completed, use the flushing device to use methyl oleate to flush the dissolved mixed ingredient kettle, finished product storage tank and filling machine.

[0009] Preferably, the flushing device described above includes a batching kettle and a first fixed disk; the first fixed disk is detachably mounted on the top of the batching kettle; an adjustable cleaning component is provided in the middle of the first fixed disk; the first fixed disk is connected to a cleaning component via the adjustable cleaning component; this step forms a flushing structure through the arrangement of the batching kettle and the first fixed disk, thereby realizing the function of flushing the inside of the batching kettle, solving the problem that the reaction mixture adheres to the inside of the batching kettle and causes the inner wall of the batching kettle to become dirty, improving the cleanliness of the inside of the batching kettle, and reducing the reaction mixture adhering to the inside of the batching kettle, so as to prepare for the next production.

[0010] Preferably, the adjustable cleaning assembly includes an electric push rod, a second fixed disk, a servo motor, a bellows, a nozzle and a rotating disk; the electric push rod is fixedly connected to the top of the first fixed disk; the electric push rods are arranged in multiple groups on the top of the first fixed disk and are symmetrically arranged; the top of the second fixed disk is fixedly connected to the transmission end of the electric push rod; the servo motor is fixedly connected to the top of the second fixed disk; the rotating disk is rotatably connected to the transmission end of the servo motor; the rotating disk is rotatably connected to the second fixed disk; the bellows is fixedly connected to the middle of the first fixed disk; the bottom end of the bellows is fixedly connected to the second fixed disk The top of the plate; the nozzle is fixedly connected to the outer wall of the rotating plate; the nozzle is arranged in multiple groups on the outer wall of the rotating plate, and is evenly distributed on the outer wall of the nozzle; the second fixed plate and the rotating plate are provided with channels inside; the nozzle is communicated with the bellows through the channel; this step forms an adjustable flushing structure through the arrangement of the electric push rod, the second fixed plate, the servo motor, the bellows, the nozzle and the rotating plate, realizes the function of uniformly flushing the inner wall of the batching kettle, solves the problem of complicated cleaning steps of the inner wall of the batching kettle, improves the cleanliness of the inner wall of the batching kettle, and improves the convenience of cleaning the inner wall of the batching kettle.

[0011] Preferably, the cleaning assembly includes a fixed seat, a support arm, a fixed plate and a cleaning brush; the fixed seat is fixedly connected to the bottom of the rotating disk; the fixed seat is arranged in multiple groups at the bottom of the rotating disk; the support arm is rotatably connected to the middle of the fixed seat; the fixed plate is fixedly connected to the end of the support arm away from the fixed seat; the cleaning brush is fixedly connected to the side wall of the fixed plate away from the support arm; the cleaning brush is arranged in multiple groups on the side wall of the fixed plate and is evenly distributed on the side wall of the fixed plate; this step forms a cleaning structure through the arrangement of the fixed seat, the support arm, the fixed plate and the cleaning brush, thereby realizing the function of cleaning the inner wall of the batching kettle, solving the problem of the reactant mixture adhering to the inner wall of the batching kettle, improving the cleanliness of the inner wall of the batching kettle, and reducing the situation of the reaction mixture adhering to the inner wall of the batching kettle causing the inner wall of the batching kettle to be not cleanly flushed.

[0012] Preferably, the outer side wall of the batching kettle is fixedly connected to a fixing frame; the bottom of the fixing frame is fixedly connected to a supporting leg; the supporting legs are arranged in multiple groups at the bottom of the fixing frame and are evenly distributed at the bottom of the fixing frame; the bottom ends of the supporting legs are fixedly connected to foot pads; in this step, the batching kettle is supported and fixed by the arrangement of the fixing frame, the supporting legs and the foot pads, so as to reduce the abnormal wear of the equipment caused by the vibration transmitted from the outside, increase the stability of the batching kettle during operation, and reduce the possibility of the equipment tipping over.

[0013] Preferably, the side wall of the fixed plate close to the support arm is fixedly connected with a counterweight block; the counterweight blocks are arranged in a pair on the side wall of the fixed plate and are symmetrically arranged; this step increases the mass of the fixed plate through the arrangement of the counterweight blocks, improves the convenience of the fixed plate being subjected to centrifugal force and close to the inner wall of the batching kettle, and improves the convenience of the cleaning brush contacting the inner wall of the batching kettle.

[0014] Preferably, the batching kettle is made of stainless steel; the batching kettle is made of stainless steel to reduce the reaction between the raw materials and the inner wall of the batching kettle, improve the stability of product production, and improve the quality of product production.

[0015] The beneficial effects of the present invention are as follows:

[0016] 1. The composite herbicide composition and preparation method thereof described in the present invention, through the arrangement of the batching kettle and the first fixed plate, constitute a flushing structure, realize the function of flushing the inside of the batching kettle, solve the problem that the reaction mixture adheres to the inside of the batching kettle and causes the inner wall of the batching kettle to be dirty, improve the cleanliness of the inside of the batching kettle, reduce the reaction mixture adhering to the inside of the batching kettle, and prepare for the next production.

[0017] 2. The composite herbicide composition and preparation method thereof described in the present invention, through the arrangement of an electric push rod, a second fixed disk, a servo motor, a bellows, a nozzle and a rotating disk, constitute an adjustable flushing structure, thereby realizing the function of uniformly flushing the inner wall of the batching kettle, solving the problem of cumbersome steps for cleaning the inner wall of the batching kettle, improving the cleanliness of the inner wall of the batching kettle, and improving the convenience of cleaning the inner wall of the batching kettle. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The present invention will be further described below in conjunction with the accompanying drawings.

[0019] Figure 1 is a flow chart of the preparation method of the present invention;

[0020] Figure 2 It is a stereogram in the present invention;

[0021] Figure 3 It is a schematic diagram of the structure of the cooperation between the rotating disk and the nozzle in the present invention;

[0022] Figure 4 It is a schematic diagram of the structure of the support arm and the rotating disk in the present invention;

[0023] Figure 5 It is a schematic diagram of the structure of the cooperation between the counterweight block and the fixed plate in the present invention.

[0024] In the figure: 1. batching kettle; 11. first fixed plate; 12. electric push rod; 13. second fixed plate; 14. servo motor; 15. bellows; 16. nozzle; 17. rotating plate; 2. fixed seat; 21. support arm; 22. fixed plate; 23. cleaning brush; 3. fixed frame; 31. support leg; 32. foot pad; 4. counterweight. DETAILED DESCRIPTION

[0025] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further explained below in conjunction with specific implementation methods.

[0026] A composite herbicide composition according to an embodiment of the present invention has the following formula: 10 parts of oxyfluorfen, 10 parts of prometryn, 46 parts of butachlor, 10 parts of tristyrylphenol polyoxyethylene ether, 2 parts of castor oil polyoxyethylene ether, 1 part of N,N-dimethylformamide, and the balance is made up of methyl oleate.

[0027] like Figure 1As shown, a method for preparing a composite herbicide composition, the preparation method has the following specific steps: S1, weighing the raw materials according to the ratio of the product formula; S2, putting the weighed N, N-dimethylformamide, methyl oleate, promethazine, and oxyfluorfen technical into a clean batching kettle, mixing and stirring, and then adding measured butachlor, tristyrylphenol polyoxyethylene ether and castor oil polyoxyethylene ether, and stirring evenly; S3, sampling and testing the products, and entering the filling process after passing the inspection, and entering the filling process after failing the inspection. It needs to be returned for re-mixing; S4. Filter the mixed raw materials before filling to remove trace insoluble impurities suspended in the emulsion preparation; S5. Adjust the filling volume and accuracy of the filling line, and use the filling machine to fill the product; S6. Pack the filled products into boxes, put in the certificate and pack them; S7. Inspect the packaging of the products, and return the unqualified ones for packaging or mixing; S8. After each batch of production is completed, use the flushing device to use methyl oleate to flush the dissolved mixed ingredient kettle, finished product storage tank and filling machine.

[0028] like Figures 2 to 5 As shown, the flushing device includes a batching kettle 1 and a first fixed disk 11; the first fixed disk 11 is detachably mounted on the top of the batching kettle 1; an adjustable cleaning component is provided in the middle of the first fixed disk 11; the first fixed disk 11 is connected with a cleaning component through the adjustable cleaning component; during operation, after each batch of products is produced, the first fixed disk 11 is mounted on the top of the batching kettle 1, the adjustable cleaning component is inserted into the batching kettle 1, methyl oleate is sprayed into the batching kettle 1 through the adjustable cleaning component to clean the batching kettle 1, the mixture adhered to the inside of the batching kettle 1 is dissolved, and the cleaning component cleans the inside of the batching kettle 1; in this step, the batching kettle 1 and the first fixed disk 11 are arranged to form a flushing structure, which realizes the function of flushing the inside of the batching kettle 1, solves the problem that the reaction mixture adheres to the inside of the batching kettle 1 and causes the inner wall of the batching kettle 1 to be dirty, improves the cleanliness of the inside of the batching kettle 1, reduces the reaction mixture adheres to the inside of the batching kettle 1, and prepares for the next production.

[0029] like Figures 2 to 4As shown, the adjustable cleaning assembly includes an electric push rod 12, a second fixed disk 13, a servo motor 14, a bellows 15, a nozzle 16 and a rotating disk 17; the electric push rod 12 is fixedly connected to the top of the first fixed disk 11; the electric push rod 12 is arranged in multiple groups on the top of the first fixed disk 11, and is symmetrically arranged; the top of the second fixed disk 13 is fixedly connected to the driving end of the electric push rod 12; the servo motor 14 is fixedly connected to the top of the second fixed disk 13; the rotating disk 17 is rotatably connected to the driving end of the servo motor 14; the rotating disk 17 is rotatably connected to the second fixed disk 13; the bellows 15 is fixedly connected to the middle of the first fixed disk 11; the bottom end of the bellows 15 is fixedly connected to the top of the second fixed disk 13; the nozzle 16 is fixedly connected to the outer wall of the rotating disk 17; the nozzle 16 is arranged in multiple groups on the outer wall of the rotating disk 17, and is evenly distributed on the outer wall of the nozzle 16; the second fixed disk 13 and the rotating disk 17 are provided with channels inside; the nozzle 16 is communicated with the bellows 15 through the channel; during operation, the first fixed disk 11 is fixed on the batching kettle 1 After the top, the second fixed disk 13 and the rotating disk 17 are inserted into the batching kettle 1, and the bellows 15 is connected to an external delivery pump to pump methyl oleate into the bellows 15, and methyl oleate is sprayed out from the nozzle 16 through the channels inside the second fixed disk 13 and the rotating disk 17. The servo motor 14 is turned on, and the servo motor 14 drives the rotating disk 17 and the nozzle 16 to rotate, and methyl oleate is sprayed out from the nozzle 16. The electric push rod 12 is turned on, and the electric push rod 12 drives the second fixed disk 13, the rotating disk 17 and the nozzle 16 to move up and down inside the batching kettle 1 , the inner wall of the batching kettle 1 is evenly flushed, and the reaction mixture adhering to the inner wall of the batching kettle 1 is dissolved and flushed away; in this step, the electric push rod 12, the second fixed disk 13, the servo motor 14, the bellows 15, the nozzle 16 and the rotating disk 17 are arranged to form an adjustable flushing structure, which realizes the function of evenly flushing the inner wall of the batching kettle 1, solves the problem of complicated steps for cleaning the inner wall of the batching kettle 1, improves the cleanliness of the inner wall of the batching kettle 1, and improves the convenience of cleaning the inner wall of the batching kettle 1.

[0030] like Figure 4 and Figure 5As shown, the cleaning assembly includes a fixed seat 2, a support arm 21, a fixed plate 22 and a cleaning brush 23; the fixed seat 2 is fixedly connected to the bottom of the rotating disk 17; the fixed seat 2 is arranged in multiple groups at the bottom of the rotating disk 17; the support arm 21 is rotatably connected to the middle of the fixed seat 2; the fixed plate 22 is fixedly connected to the end of the support arm 21 away from the fixed seat 2; the cleaning brush 23 is fixedly connected to the side wall of the fixed plate 22 away from the support arm 21; the cleaning brush 23 is arranged in multiple groups on the side wall of the fixed plate 22, and is evenly distributed on the side wall of the fixed plate 22; during operation, when the servo motor 14 drives the rotating disk 17 to rotate, it drives the fixed seat 2, the support arm 21 and the fixed plate 22 to rotate, and the support arm 21, the fixed plate 2 2 and the cleaning brush 23 under the action of centrifugal force, the support arm 21 rotates around the fixed seat 2, the fixed plate 22 and the cleaning brush 23 are close to the inner wall of the batching kettle 1, and the cleaning brush 23 cleans the inner wall of the batching kettle 1 to sweep off the reactants adhered to the inner wall of the batching kettle 1; in this step, the cleaning structure is formed by the arrangement of the fixed seat 2, the support arm 21, the fixed plate 22 and the cleaning brush 23, so as to realize the function of cleaning the inner wall of the batching kettle 1, solve the problem that the reactant mixture adheres to the inner wall of the batching kettle 1, improve the cleanliness of the inner wall of the batching kettle 1, and reduce the situation that the reaction mixture adheres to the inner wall of the batching kettle 1 and causes the inner wall of the batching kettle 1 to be not clean.

[0031] like Figure 2 As shown, the outer wall of the batching kettle 1 is fixedly connected to a fixing frame 3; the bottom of the fixing frame 3 is fixedly connected to a support leg 31; a plurality of groups of support legs 31 are arranged at the bottom of the fixing frame 3 and are evenly distributed at the bottom of the fixing frame 3; a foot pad 32 is fixedly connected to the bottom of the support leg 31; during operation, the fixing frame 3 and the support leg 31 support and fix the batching kettle 1, and the foot pad 32 reduces the vibration transmitted from the outside; in this step, the batching kettle 1 is supported and fixed by setting the fixing frame 3, the support leg 31 and the foot pad 32, the abnormal wear of the equipment caused by the vibration transmitted from the outside is reduced, the stability of the batching kettle 1 during operation is increased, and the tipping of the equipment is reduced.

[0032] like Figure 5 As shown, the side wall of the fixed plate 22 close to the support arm 21 is fixedly connected with a counterweight 4; a pair of counterweights 4 are arranged on the side wall of the fixed plate 22, and are symmetrically arranged; during operation, the counterweight 4 is fixed to the side wall of the fixed plate 22, thereby increasing the mass of the fixed plate 22 and facilitating the cleaning brush 23 to approach the inner wall of the batching kettle 1; this step increases the mass of the fixed plate 22 by setting the counterweight 4, improves the convenience of the fixed plate 22 being subjected to centrifugal force and approaching the inner wall of the batching kettle 1, and improves the convenience of the cleaning brush 23 contacting the inner wall of the batching kettle 1.

[0033] like Figure 2 As shown, the batching kettle 1 is made of stainless steel; during operation, the batching kettle 1 is made of stainless steel, which reduces the reaction between the raw materials and the inner wall of the batching kettle 1, improves the stability of product production, and improves the quality of product production.

[0034] During operation, after the production of each batch of products is completed, the first fixed disk 11 is installed on the top of the batching kettle 1, and the adjustable cleaning component is inserted into the batching kettle 1. Methyl oleate is sprayed into the batching kettle 1 through the adjustable cleaning component to clean the batching kettle 1, and the mixture adhering to the inside of the batching kettle 1 is dissolved. The cleaning component cleans the inside of the batching kettle 1; after the first fixed disk 11 is fixed on the top of the batching kettle 1, the second fixed disk 13 and the rotating disk 17 are inserted into the batching kettle 1, and the bellows 15 is connected to an external delivery pump to pump methyl oleate into the bellows 15, and methyl oleate is sprayed from the nozzle 16 through the channel inside the second fixed disk 13 and the rotating disk 17, the servo motor 14 is turned on, and the servo motor 14 drives the rotating disk 17 and the nozzle 16 to rotate, and methyl oleate is sprayed from the nozzle 16, and the electric push rod 12 is turned on, and the electric push rod 12 drives the second fixed disk 13, the rotating disk 17 and the nozzle 16 to move up and down inside the batching kettle 1, and the batching kettle 1 is uniformly rinsed to dissolve and wash away the reaction mixture adhering to the inner wall of the batching kettle 1; when the servo motor 14 drives the rotating disk 17 to rotate, the fixed seat 2, the support arm 21 and the fixed plate 22 are driven to rotate. Under the action of centrifugal force, the support arm 21 rotates around the fixed seat 2, the fixed plate 22 and the cleaning brush 23, and the fixed plate 22 and the cleaning brush 23 are close to the inner wall of the batching kettle 1. The cleaning brush 23 cleans the inner wall of the batching kettle 1 and sweeps off the reactants adhering to the inner wall of the batching kettle 1; the fixed frame 3 and the support leg 31 support and fix the batching kettle 1, and the foot pad 32 reduces the vibration transmitted from the outside; the counterweight 4 is fixed to the side wall of the fixed plate 22 to increase the mass of the fixed plate 22, so that the cleaning brush 23 is close to the inner wall of the batching kettle 1; the batching kettle 1 is made of stainless steel to reduce the reaction between the raw materials and the inner wall of the batching kettle 1, improve the stability of product production, and improve the quality of product production.

[0035] The above shows and describes the basic principles, main features and advantages of the present invention. It should be understood by those skilled in the art that the present invention is not limited to the above embodiments. The above embodiments and descriptions are only for explaining the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, which fall within the scope of the present invention. The scope of protection of the present invention is defined by the attached claims and their equivalents.

Claims

1. A composite herbicide composition, characterized in that: The formula of the composite herbicide composition is as follows:

2. A method for preparing a composite herbicide composition, characterized in that: The specific steps of the preparation method are as follows: S1. Weigh the raw materials according to the proportion of the product formula; S2, put the weighed N,N-dimethylformamide, methyl oleate, prometryn, and oxyfluorfen technical into a clean batching kettle, mix and stir, then add the measured butachlor, tristyrylphenol polyoxyethylene ether and castor oil polyoxyethylene ether, and stir evenly; S3. Sampling and testing of products. If qualified, they will enter the filling process. If unqualified, they will be returned for re-mixing. S4. Filter the mixed raw materials before filling to remove trace insoluble impurities suspended in the emulsifiable concentrate preparation; S5. Adjust the filling volume and accuracy of the filling line and use the filling machine to fill the product; S6. Pack the filled products into boxes, put in the certificate and pack them; S7. Test the packaging of products and return unqualified ones to packaging or mix them; S8. After each batch of production is completed, use the flushing device to use methyl oleate to flush the dissolving and mixing ingredient kettle, finished product storage tank and filling machine.

3. The method for preparing a composite herbicide composition according to claim 2, characterized in that: The flushing device described in S8 comprises a batching kettle (1) and a first fixed plate (11); the first fixed plate (11) is detachably mounted on the top of the batching kettle (1); an adjustable cleaning component is provided in the middle of the first fixed plate (11); the first fixed plate (11) is connected to a cleaning component via the adjustable cleaning component.

4. The method for preparing a composite herbicide composition according to claim 3, characterized in that: The adjustable cleaning assembly comprises an electric push rod (12), a second fixed disk (13), a servo motor (14), a bellows (15), a nozzle (16) and a rotating disk (17); the electric push rod (12) is fixedly connected to the top of the first fixed disk (11); a plurality of electric push rods (12) are arranged on the top of the first fixed disk (11) and are symmetrically arranged; the top of the second fixed disk (13) is fixedly connected to the transmission end of the electric push rod (12); the servo motor (14) is fixedly connected to the top of the second fixed disk (13); the rotating disk (17) is rotatably connected to the servo motor (1 4) a transmission end; the rotating disk (17) is rotatably connected to the second fixed disk (13); the bellows (15) is fixedly connected to the middle of the first fixed disk (11); the bottom end of the bellows (15) is fixedly connected to the top of the second fixed disk (13); the nozzle (16) is fixedly connected to the outer wall of the rotating disk (17); a plurality of groups of nozzles (16) are arranged on the outer wall of the rotating disk (17) and are evenly distributed on the outer wall of the nozzle (16); a channel is provided inside the second fixed disk (13) and the rotating disk (17); the nozzle (16) is communicated with the bellows (15) through the channel.

5. The method for preparing a composite herbicide composition according to claim 4, characterized in that: The cleaning assembly comprises a fixed seat (2), a support arm (21), a fixed plate (22) and a cleaning brush (23); the fixed seat (2) is fixedly connected to the bottom of the rotating disk (17); a plurality of fixed seats (2) are arranged at the bottom of the rotating disk (17); the support arm (21) is rotatably connected to the middle of the fixed seat (2); the fixed plate (22) is fixedly connected to the end of the support arm (21) away from the fixed seat (2); the cleaning brush (23) is fixedly connected to the side wall of the fixed plate (22) away from the support arm (21); a plurality of cleaning brushes (23) are arranged on the side wall of the fixed plate (22) and are evenly distributed on the side wall of the fixed plate (22).

6. The method for preparing a composite herbicide composition according to claim 3, characterized in that: The outer wall of the batching kettle (1) is fixedly connected to a fixing frame (3); the bottom of the fixing frame (3) is fixedly connected to a supporting leg (31); a plurality of groups of the supporting legs (31) are arranged at the bottom of the fixing frame (3) and are evenly distributed at the bottom of the fixing frame (3); and a foot pad (32) is fixedly connected to the bottom end of the supporting leg (31).

7. The method for preparing a composite herbicide composition according to claim 5, characterized in that: A counterweight (4) is fixedly connected to the side wall of the fixing plate (22) close to the support arm (21); a pair of the counterweights (4) are arranged on the side wall of the fixing plate (22) and are symmetrically arranged.

8. The method for preparing a composite herbicide composition according to claim 3, characterized in that: The batching kettle (1) is made of stainless steel.

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