A Pneumatic Electrostatic Boom Sprayer for Paddy Fields

Abstract

The invention relates to plant protection machinery, in particular to a paddy field pneumatic type static electricity boom sprayer which comprises a four-wheel driving chassis, a machine frame, an electric control box, a fixing frame and a spraying system. The spraying system comprises a liquid pump, a pesticide box, an electric telescopic cylinder, a connecting frame, a static electricity spraying head, a middle spraying boom, a side spraying boom, an air compressor, a high-voltage static electricity generator, a power supply and a gas conveying pipeline. During spraying, pesticide liquid and water are added according to the proportion; the power supply is connected, and the high-voltage static electricity generator is started to charge an annular electrode; the air compressor is started, and high-pressure air flow enters from an air inlet along the gas conveying pipeline and flows to the front end of the static electricity spraying head in a speed-up mode; and the liquid pump is started, the pesticide liquid enters the spraying booms through a liquid conveying soft pipe and enters the static electricity spraying head from a liquid inlet, high-speed air flow breaks liquid flow into small fogdrops and pushes the fogdrops to be sprayed out from the front end of the static electricity spraying head, fogdrops are charged by the annular electrode in an induction mode when being sprayed out, and after the fogdrops with electricity leave the static electricity spraying head, under the effect of a static electricity field and the power of gas turbulence, the foddrops are sprayed to the surfaces of plants.

Description

technical field [0001] The invention belongs to the technical field of plant protection machinery and relates to a spray device, in particular to a paddy field pneumatic electrostatic boom sprayer. Background technique [0002] At present, the electrostatic nozzles used in domestic boom sprayers are mostly centrifugal or hydraulic atomization, and the charging method is mostly contact charging. These electrostatic nozzles have many problems: short spray range, nozzle leakage, reverse ionization phenomenon Serious, droplet particle spectrum and spray width are not easy to control, etc., the induction charging pneumatic nozzle can solve the above problems well, but because there is no suitable induction charging pneumatic nozzle that can be used with the boom sprayer, so the pneumatic nozzle Electrostatic spray technology has not been applied to boom sprayers; Pneumatic electrostatic spray technology refers to the interaction between high-speed air flow and liquid flow, so tha...

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Problems solved by technology

[0002] At present, the electrostatic nozzles used in domestic boom sprayers are mostly centrifugal or hydraulic atomization, and the charging method is mostly contact charging. These electrostatic nozzles have many problems: short spray range, nozzle leakage, reverse ionization phenomenon Serious, droplet particle spectrum and spray width are not easy to control, etc., the induction charging pneumatic nozzle can solve the above problems well, but because there is no suitable induction charging pneumatic nozzle that can be used with the boom sprayer, so the pneumatic nozzle Electrostatic spray technology has not been applied to boom sprayers; Pneumatic electrostatic spray technology refers to the interaction between high-speed air flow and liquid flow, so that the liquid medicine is atomized inside the nozzle, and the droplets are brought on after passing through the pneumatic electrostatic nozzle embedded in the electrode. Electric charge, do directional movement and adsorb on the target; the paddy field sprayer should meet the design requirements of small size and light body. The medicine box solves the subsidence problem of the paddy field boom sprayer well

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