CN106040463A - Device and method for preventing and reducing spray drift - Google Patents
Device and method for preventing and reducing spray drift Download PDFInfo
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- CN106040463A CN106040463A CN201610512710.1A CN201610512710A CN106040463A CN 106040463 A CN106040463 A CN 106040463A CN 201610512710 A CN201610512710 A CN 201610512710A CN 106040463 A CN106040463 A CN 106040463A
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- 239000007921 spray Substances 0.000 title claims abstract description 43
- 238000000034 method Methods 0.000 title claims description 14
- 238000005507 spraying Methods 0.000 claims abstract description 56
- 239000000835 fiber Substances 0.000 claims abstract description 43
- 239000013305 flexible fiber Substances 0.000 claims abstract description 43
- 239000000126 substance Substances 0.000 claims abstract description 16
- 239000003814 drug Substances 0.000 claims abstract description 8
- 238000004364 calculation method Methods 0.000 claims description 8
- 230000009467 reduction Effects 0.000 claims description 8
- 238000002347 injection Methods 0.000 claims description 7
- 239000007924 injection Substances 0.000 claims description 7
- 230000000694 effects Effects 0.000 claims description 6
- 238000011156 evaluation Methods 0.000 claims description 6
- 238000004088 simulation Methods 0.000 claims description 6
- 239000000463 material Substances 0.000 claims description 5
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 5
- 230000008859 change Effects 0.000 claims description 4
- 239000004952 Polyamide Substances 0.000 claims description 3
- 229920002647 polyamide Polymers 0.000 claims description 3
- 229920000728 polyester Polymers 0.000 claims description 3
- 229920000297 Rayon Polymers 0.000 claims description 2
- 229920002239 polyacrylonitrile Polymers 0.000 claims description 2
- 238000005070 sampling Methods 0.000 claims description 2
- 239000003595 mist Substances 0.000 abstract description 8
- 239000006185 dispersion Substances 0.000 abstract description 4
- 229940079593 drug Drugs 0.000 abstract description 3
- 238000000889 atomisation Methods 0.000 abstract description 2
- 230000004888 barrier function Effects 0.000 abstract description 2
- 230000000857 drug effect Effects 0.000 abstract description 2
- 239000000575 pesticide Substances 0.000 description 13
- 241000196324 Embryophyta Species 0.000 description 9
- 230000001680 brushing effect Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 241001057636 Dracaena deremensis Species 0.000 description 1
- 239000004677 Nylon Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000009472 formulation Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 229920001778 nylon Polymers 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 229920002994 synthetic fiber Polymers 0.000 description 1
- 239000012209 synthetic fiber Substances 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
- B05B1/00—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means
- B05B1/34—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means designed to influence the nature of flow of the liquid or other fluent material, e.g. to produce swirl
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- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01M—CATCHING, TRAPPING OR SCARING OF ANIMALS; APPARATUS FOR THE DESTRUCTION OF NOXIOUS ANIMALS OR NOXIOUS PLANTS
- A01M7/00—Special adaptations or arrangements of liquid-spraying apparatus for purposes covered by this subclass
- A01M7/005—Special arrangements or adaptations of the spraying or distributing parts, e.g. adaptations or mounting of the spray booms, mounting of the nozzles, protection shields
- A01M7/006—Mounting of the nozzles
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- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Insects & Arthropods (AREA)
- Pest Control & Pesticides (AREA)
- Wood Science & Technology (AREA)
- Zoology (AREA)
- Environmental Sciences (AREA)
- Catching Or Destruction (AREA)
Abstract
本发明提供一种防减喷药漂移的装置，包括设置在喷药设备的喷嘴上的柔性纤维丝，所述柔性纤维丝的长度为5～50cm，所述柔性纤维丝连接在纤维丝固定头上，所述纤维丝固定头设置于喷嘴的前、后、左、右四个方向的至少一侧。本发明提出的装置，将柔性纤维丝固定在喷嘴的一侧，柔性纤维丝形成延长气流挡帘；一方面利用喷雾喷嘴的高压气流和外界风流的紊流涡流，使得喷嘴的雾滴能更加均匀的分散开，减少雾滴之间的碰撞和粘连，减少雾化很好的小雾滴变成药效很差的大雾滴的比率。由于通过涡流后获得分散质量很好的雾滴，增加了雾滴吸附在作物叶片表面的能力，能更好地发挥药效。
The invention provides a device for preventing and reducing spraying chemical drift, which comprises flexible fiber filaments arranged on the nozzles of chemical spraying equipment, the length of the flexible fiber filaments is 5-50 cm, and the flexible fiber filaments are connected to the fiber filament fixing head Above, the fiber filament fixing head is arranged on at least one side of the nozzle in the four directions of front, back, left and right. The device proposed by the present invention fixes the flexible fiber filaments on one side of the nozzle, and the flexible fiber filaments form an extended airflow barrier; on the one hand, the high-pressure airflow of the spray nozzle and the turbulent vortex of the external wind flow are used to make the spray droplets of the nozzle more uniform The dispersion can reduce the collision and adhesion between the mist droplets, and reduce the ratio of small mist droplets with good atomization to large mist droplets with poor drug efficacy. Since the spray droplets with good dispersion quality are obtained after passing through the vortex, the ability of the spray droplets to adsorb on the surface of the crop leaves is increased, and the drug effect can be better exerted.
Description
技术领域technical field
本发明属于农业机械技术领域，具体涉及一种施用农药的机械装置及方法。The invention belongs to the technical field of agricultural machinery, and in particular relates to a mechanical device and method for applying pesticides.
背景技术Background technique
飘移是农药在使用过程中通过空气向非预定目标运动的现象。在大多数情况下，飘移仅限于田块边缘或保护行，但在特殊施药情况下,飘移运动会影响离田块很远的作物或居民。飞行飘移是指农药雾滴飞离目标的物理运动过程，主要与农药使用方法和使用机具有关。我国一年的农药使用量就约30万吨，但因为漂移损失，喷洒出去的农药只有极少部分到达靶标上。Drift is the movement of pesticides through the air to unintended targets during use. In most cases, drift is limited to the edge of the field or the protective row, but in special application situations, the drift movement can affect crops or residents far away from the field. Flight drift refers to the physical movement process of pesticide droplets flying away from the target, which is mainly related to the method of pesticide application and the use of equipment. The amount of pesticides used in my country is about 300,000 tons a year, but due to drift losses, only a very small part of the sprayed pesticides reaches the target.
现在较为先进的施药技术是采用低容量宽喷幅喷洒机械，并针对不同的作物用不同的施药机械和剂型喷洒。但因为现有技术中，施药机械自动化程度不高、采用大容量喷雾、喷洒装置品种单一等因素,致使农药的有效利用率只有20％左右，造成大量农药的浪费。The more advanced spraying technology now is to use low-capacity wide-spray spraying machinery, and spray with different spraying machinery and formulations for different crops. However, due to factors such as low automation of pesticide application machines, large-capacity spraying, and a single type of spraying device in the prior art, the effective utilization rate of pesticides is only about 20%, resulting in a large amount of waste of pesticides.
发明内容Contents of the invention
针对本领域存在的不足之处，本发明的目的之一是提出一种防减喷药漂移的装置。In view of the deficiencies in the art, one of the purposes of the present invention is to propose a device for preventing and reducing drift of spraying medicine.
本发明的第二个目的是提出一种防减喷药漂移的方法。The second object of the present invention is to propose a method for preventing and reducing the spray drift.
实现本发明目的技术方案为：Realize the technical scheme of the object of the present invention as:
一种防减喷药漂移的装置，其包括设置在喷药设备的喷嘴上的柔性纤维丝，所述柔性纤维丝的长度为5～50cm。A device for preventing and reducing spraying chemical drift, which includes flexible fiber filaments arranged on nozzles of chemical spraying equipment, and the length of the flexible fiber filaments is 5-50 cm.
其中，所述柔性纤维丝连接在纤维丝固定头上，所述纤维丝固定头设置于喷嘴的前、后、左、右四个方向的至少一侧。Wherein, the flexible fiber is connected to the fiber fixing head, and the fiber fixing head is arranged on at least one side of the nozzle in four directions of front, back, left and right.
进一步地，所述柔性纤维丝连接在纤维丝固定头上，所述喷药设 备具有多个喷嘴，多个喷嘴设置为一排，多个纤维丝固定头设置于喷嘴的前方。Further, the flexible fiber filaments are connected to the fiber filament fixing heads, the spraying equipment has a plurality of nozzles, the plurality of nozzles are arranged in a row, and the plurality of fiber filament fixing heads are arranged in front of the nozzles.
作为本发明优选实施方案之一，所述喷药设备设置有行进轮；所述喷药设备具有多个喷嘴，多个喷嘴设置成排，喷嘴的排列方向和喷药设备的行进方向垂直；所述柔性纤维丝连接在纤维丝固定头上，多个纤维丝固定头设置于喷嘴的前方和/或后方。As one of the preferred embodiments of the present invention, the spraying equipment is provided with a traveling wheel; the spraying equipment has a plurality of nozzles arranged in rows, and the arrangement direction of the nozzles is perpendicular to the traveling direction of the spraying equipment; The flexible fiber filaments are connected to the fiber filament fixing heads, and a plurality of fiber filament fixing heads are arranged in front and/or behind the nozzle.
优选地，多个纤维丝固定头设置于喷嘴的前方。Preferably, a plurality of filament fixing heads are arranged in front of the nozzle.
更进一步地，多个纤维丝固定头排列布置为纤维丝帘，在纤维丝帘后面设置检测涡流强度的气体压力探测器，通过控制装置，再调节喷雾喷嘴的喷射压力，使得喷射压力和涡流强度变化对应，最大程度利用涡流减少漂移的目的。Furthermore, a plurality of fiber filament fixing heads are arranged to form a fiber filament curtain, and a gas pressure detector for detecting the eddy current intensity is arranged behind the fiber filament curtain, and the injection pressure of the spray nozzle is adjusted through the control device, so that the injection pressure and the vortex intensity The change corresponds to the purpose of maximizing the use of eddy currents to reduce drift.
其中，所述喷嘴为喷雾喷嘴；所述柔性纤维丝的材质为真丝、聚酯纤维、聚丙烯腈纤维、粘胶纤维、聚酰胺纤维(锦纶)中的一种或多种。Wherein, the nozzle is a spray nozzle; the material of the flexible fiber is one or more of silk, polyester fiber, polyacrylonitrile fiber, viscose fiber, polyamide fiber (nylon).
优选合成纤维材质的纤维丝。纤维丝的固定方法可以采用常规手段，比如纤维丝可热熔固定在固定头上，也可用线绑在固定头上。纤维丝固定头通过螺栓和设置喷嘴的部件连接。Preference is given to filaments of synthetic fiber material. The fixing method of the fiber can adopt conventional means, such as the fiber can be thermally melted and fixed on the fixing head, or can be tied to the fixing head with a thread. The fiber thread fixing head is connected with the parts for setting the nozzle by bolts.
一种防减喷药漂移的方法，包括以下步骤：A method for preventing and reducing spraying drift, comprising the following steps:
第一步是选定：在施药之前测定风速，计算喷嘴孔径，选定喷嘴；The first step is to select: measure the wind speed before spraying, calculate the nozzle aperture, and select the nozzle;
第二步是计算：确定施药高度，计算施药角度，选定柔性纤维丝的长度、数量；The second step is calculation: determine the spraying height, calculate the spraying angle, and select the length and quantity of flexible fiber filaments;
第三步是模拟评价：测定风场小涡流，计算漂移减少系数，满足要求时则模拟计算施药用量，得出有效防飘系数，以评价防减喷药漂移的效果；如果计算的漂移减少系数不满足要求，则修正施药高度和施药角度，再次进行模拟评价。The third step is the simulation evaluation: measure the small eddy current in the wind field, calculate the drift reduction coefficient, and simulate the calculation of the spraying amount when the requirements are met, and obtain the effective anti-drift coefficient to evaluate the effect of preventing and reducing the drift of spraying chemicals; if the calculated drift reduces If the coefficient does not meet the requirements, the spraying height and spraying angle are corrected, and the simulation evaluation is performed again.
第三步中，漂移减少系数可以理解为固定位置点例如10米，固定高度例如1.8米(不同植物，高度不同)，计算同一采样位置处普 通喷雾(没有设柔性纤维丝)和本发明喷雾漂移量差除以普通漂移量的比值。一般在该比值达20-30％时视为满足要求，选“Y”。In the third step, the drift reduction coefficient can be understood as a fixed position point such as 10 meters, a fixed height such as 1.8 meters (different plants, different heights), and calculation of common spray (no flexible fiber filament) and spray drift of the present invention at the same sampling position The ratio of the amount difference divided by the ordinary drift amount. Generally, when the ratio reaches 20-30%, it is considered to meet the requirements, and "Y" is selected.
防飘系数为漂移量除以漂移距离的比值。The anti-drift coefficient is the ratio of the drift amount divided by the drift distance.
喷嘴孔径可采用公式(1)计算：The nozzle aperture can be calculated by formula (1):
d＝{q÷(0.658×p1/2×n)}1/2×η (1)d＝{q÷(0.658×p 1/2 ×n)} 1/2 ×η (1)
其中，所述第三步中，在距离喷嘴2～100米位置处用水敏纸采集漂移量，用以评价防减喷药漂移的效果。Wherein, in the third step, the drift amount is collected on water-sensitive paper at a position 2 to 100 meters away from the nozzle, so as to evaluate the effect of preventing and reducing drift of spraying chemicals.
针对飞行飘移农药雾滴的分布特性，优选地，在距离喷嘴5米，10米，15米位置处用水敏纸采集漂移量，用以评价防减喷药漂移的效果。For the distribution characteristics of flying drifting pesticide droplets, preferably, the drift amount is collected on water-sensitive paper at positions 5 meters, 10 meters, and 15 meters away from the nozzle, so as to evaluate the effect of preventing and reducing spray drift.
其中，所述第三步中，用探测器检测涡流强度，通过控制装置，再调节喷雾喷嘴的喷射压力，使得喷射压力和涡流强度变化对应，最大程度利用涡流减少漂移。Wherein, in the third step, the detector is used to detect the vortex intensity, and the spray pressure of the spray nozzle is adjusted through the control device, so that the injection pressure corresponds to the change of the vortex intensity, and the vortex is used to the greatest extent to reduce drift.
本发明的有益效果在于：The beneficial effects of the present invention are:
本发明提出的装置，将柔性纤维丝固定在喷嘴的一侧，柔性纤维丝形成延长气流挡帘；一方面利用喷雾喷嘴的高压气流和外界风流的紊流涡流，使得喷嘴的雾滴能更加均匀的分散开，减少雾滴之间的碰撞和粘连，减少雾化很好的小雾滴变成药效很差的大雾滴的比率。由于通过涡流后获得分散质量很好的雾滴，增加了雾滴吸附在作物叶片表面的能力，能更好地发挥药效。The device proposed by the present invention fixes the flexible fiber filaments on one side of the nozzle, and the flexible fiber filaments form an extended airflow barrier; on the one hand, the high-pressure airflow of the spray nozzle and the turbulent vortex of the external wind flow are used to make the spray droplets of the nozzle more uniform The dispersion can reduce the collision and adhesion between the mist droplets, and reduce the ratio of small mist droplets with good atomization to large mist droplets with poor drug efficacy. Since the spray droplets with good dispersion quality are obtained after passing through the vortex, the ability of the spray droplets to adsorb on the surface of the crop leaves is increased, and the drug effect can be better exerted.
柔性纤维丝和植株顶部叶片接触，在喷药机前进的过程中，一直在植株表面刷抹，一方面柔性纤维丝能将雾滴刮的更加均匀，另一方面柔性纤维丝不会损伤作物。The flexible fiber silk is in contact with the top leaves of the plant. When the sprayer is moving forward, it has been brushing on the surface of the plant. On the one hand, the flexible fiber silk can scrape the mist more evenly, and on the other hand, the flexible fiber silk will not damage the crops.
附图说明Description of drawings
图1为本发明一种防减喷药漂移的装置的结构示意图。Fig. 1 is a structural schematic diagram of a device for preventing and reducing drift of spraying chemicals according to the present invention.
图2为防减喷药漂移的装置的侧视图。Fig. 2 is a side view of the device for preventing and reducing drift of spraying medicine.
图3为本发明防减喷药漂移方法的流程框图。Fig. 3 is a block flow diagram of the method for preventing and reducing drift of spraying chemicals of the present invention.
图中，1.柔性纤维丝，2.纤维丝固定头，3.喷雾架，4.螺栓，5.喷嘴，6.农药喷雾，7.植物叶片，8.药桶。In the figure, 1. Flexible fiber filament, 2. Fiber filament fixed head, 3. Spray frame, 4. Bolt, 5. Nozzle, 6. Pesticide spray, 7. Plant blade, 8. Medicine barrel.
具体实施方式detailed description
下面结合附图和实施例，对本发明的具体实施方式作进一步详细描述。以下实施例用于说明本发明，但不用来限制本发明的范围。The specific implementation manners of the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. The following examples are used to illustrate the present invention, but are not intended to limit the scope of the present invention.
实施例1Example 1
本发明提出的防减喷药漂移装置，具体体现为本实施例的如下结构：设置在喷药设备的喷嘴上的柔性纤维丝，所述柔性纤维丝的长度为5～50cm。柔性纤维丝连接在纤维丝固定头上，所述纤维丝固定头设置于喷嘴的左、右两侧。The device for preventing and reducing drift of spraying medicine proposed by the present invention is specifically embodied in the following structure of this embodiment: a flexible fiber thread arranged on the nozzle of the spraying device, and the length of the flexible fiber thread is 5-50 cm. The flexible fiber is connected to the fiber fixing head, and the fiber fixing head is arranged on the left and right sides of the nozzle.
所述喷嘴为喷雾喷嘴；所述柔性纤维丝的材质为聚酰胺纤维。The nozzle is a spray nozzle; the material of the flexible fiber filament is polyamide fiber.
施药的设备有一个喷雾喷嘴，喷嘴两侧设置的柔性纤维丝束形成延长气流挡帘；一方面使得喷嘴的雾滴能更加均匀的分散开，减少雾滴之间的碰撞和粘连，另一方面柔性纤维丝和植株顶部叶片接触，在喷药机前进的过程中，一直在植株表面刷抹，将雾滴刮的更加均匀。The spraying equipment has a spray nozzle, and the flexible fiber bundles arranged on both sides of the nozzle form an extended airflow curtain; on the one hand, the droplets of the nozzle can be dispersed more evenly, reducing the collision and adhesion between the droplets, and on the other hand On the one hand, the flexible fiber filaments are in contact with the top leaves of the plants. When the sprayer is moving forward, it has been brushing on the surface of the plants to scrape the mist more evenly.
实施例2Example 2
一种防减喷药漂移的装置，其包括设置在喷药设备的喷嘴上的柔性纤维丝，本实施例中，柔性纤维丝的长度为20cm。当植物更矮、或更高时，可选5～50cm长度的纤维丝进行更换。A device for preventing and reducing spraying chemical drift, which includes flexible fiber filaments arranged on nozzles of chemical spraying equipment. In this embodiment, the length of the flexible fiber filaments is 20 cm. When the plant is shorter or taller, it can be replaced with fiber filaments with a length of 5-50 cm.
见图1，柔性纤维丝1连接在纤维丝固定头2上，所述纤维丝固定头设置于喷嘴5的前方(喷雾设备行进的方向)。施药时，喷嘴对植物叶片7喷出农药喷雾6。Referring to Fig. 1, the flexible fiber filament 1 is connected to the fiber filament fixing head 2, and the fiber filament fixing head is arranged in front of the nozzle 5 (the direction in which the spraying equipment travels). During spraying, the nozzle sprays the pesticide spray 6 to the plant blade 7 .
见图2，所述柔性纤维丝1连接在纤维丝固定头2上，所述喷药设备具有多个喷嘴，喷嘴设置在喷雾架3上，该喷雾架通过导管连接有药桶8；多个喷嘴5设置为一排，排列方向和配伍设备行进方向垂直；多个纤维丝固定头2通过螺栓4固定在喷雾架3上。多个纤维丝固定头布置为纤维丝帘，在帘子后面设置检测涡流强度的气体压力探 测器。See Fig. 2, described flexible fiber silk 1 is connected on the fiber silk fixed head 2, and described spray equipment has multiple nozzles, and nozzle is arranged on the spray frame 3, and this spray frame is connected with medicine barrel 8 through conduit; The nozzles 5 are arranged in a row, and the arrangement direction is perpendicular to the traveling direction of the compatible equipment; multiple fiber filament fixing heads 2 are fixed on the spray frame 3 by bolts 4 . A plurality of fiber filament fixing heads are arranged as a fiber filament curtain, and a gas pressure detector for detecting eddy current intensity is arranged behind the curtain.
其中，喷嘴为喷雾喷嘴；所述柔性纤维丝的材质为聚酯纤维。喷药之后可以清洗再用。Wherein, the nozzle is a spray nozzle; the material of the flexible fiber filament is polyester fiber. It can be cleaned and reused after spraying.
一种防减喷药漂移方法，基于本实施例的防减喷药漂移装置，其操作步骤见图3，具体包括：A method for preventing and reducing spray chemical drift, based on the device for preventing and reducing spray chemical drift of this embodiment, its operation steps are shown in Figure 3, specifically including:
第一步是选定：在施药之前测定风速，计算喷嘴孔径，选定喷嘴；The first step is to select: measure the wind speed before spraying, calculate the nozzle aperture, and select the nozzle;
第二步是计算：确定施药高度，计算施药角度，选定柔性纤维丝的长度、数量；The second step is calculation: determine the spraying height, calculate the spraying angle, and select the length and quantity of flexible fiber filaments;
第三步是模拟评价：测定风场小涡流，计算漂移减少系数，漂移减少系数为20％则满足要求，为“Y”，模拟计算施药用量，得出有效防飘系数，以评价防减喷药漂移的效果；如果计算的漂移减少系数不到20％，则修正施药高度和施药角度，再次进行模拟评价。The third step is simulation evaluation: measure the small eddy current in the wind field, and calculate the drift reduction coefficient. If the drift reduction coefficient is 20%, it meets the requirements, and it is "Y". The effective anti-drift coefficient is obtained by simulating the calculation of the spraying amount to evaluate the drift reduction. The effect of spraying drift; if the calculated drift reduction coefficient is less than 20%, correct the spraying height and spraying angle, and perform the simulation evaluation again.
用探测器检测涡流强度，通过控制装置，再调节喷雾喷嘴的喷射压力，使得喷射压力和涡流强度变化对应，最大程度利用涡流减少漂移。Use the detector to detect the vortex intensity, and then adjust the injection pressure of the spray nozzle through the control device, so that the injection pressure corresponds to the change of the vortex intensity, and the vortex is used to the greatest extent to reduce drift.
在距离喷嘴5米，10米，15米位置处用水敏纸采集漂移量，用以评价防减喷药漂移的效果。Water-sensitive paper is used to collect the drift amount at the position of 5 meters, 10 meters and 15 meters from the nozzle to evaluate the effect of preventing and reducing spray drift.
具体在本实施例中，对于玉米植株，设定施药高度1.4米，农药喷雾6均匀地洒在植物叶7上。在距离喷嘴5米，10米，15米位置处用水敏纸采集漂移量，漂移量比现有的喷雾装置(没有设柔性纤维丝)，在同样1.5m高度处分别减少了30％，30％和20％。Specifically, in this embodiment, for corn plants, the spraying height is set at 1.4 meters, and the pesticide spray 6 is evenly sprayed on the plant leaves 7 . The water-sensitive paper collects the drift at the position of 5 meters, 10 meters and 15 meters from the nozzle, and the drift is reduced by 30% and 30% respectively at the same height of 1.5m compared with the existing spray device (without flexible fiber filaments). and 20%.
以上所述仅是本发明的优选实施方式，应当指出，对于本技术领域的普通技术人员来说，在不脱离本发明技术原理的前提下，还可以做出若干改进和替换，这些改进和替换也应视为本发明的保护范围。The above is only a preferred embodiment of the present invention, it should be pointed out that for those of ordinary skill in the art, without departing from the technical principle of the present invention, some improvements and replacements can also be made, these improvements and replacements It should also be regarded as the protection scope of the present invention.
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