Applying device and applying method of liquid fertilizer

Abstract

The invention discloses an applying device of liquid fertilizer and an applying method thereof. The applying device comprises a fertilizer conveying cart, wherein the fertilizer conveying cart is provided with an air compressor, a fertilizer conveying tank, rotary brackets and connectors; the fertilizer conveying tank and the air compressor are arranged on a fertilizer conveying cart frame; the air compressor is connected with the fertilizer conveying tank by an air pipe; a liquid absorbing opening is formed in the top part of the fertilizer conveying tank; a fertilizer absorbing valve is arranged at the fertilizer absorbing opening which is connected with a liquid absorbing hose; a fertilizer applying mechanism is arranged at the bottom part of the fertilizer conveying tank; fertilizer applying openings of the fertilizer applying mechanism are formed in the fertilizer conveying tank; fertilizer applying valves are arranged at the fertilizer applying openings; one end of each fertilizer hose is connected with the corresponding fertilizer applying opening, and the other end of each fertilizer hose is connected with one connector; bracket piers are arranged on the fertilizer conveying cart frame, and are provided with the rotary brackets; the connectors are arranged on the rotary brackets. The applying device and the applying method disclosed by the invention have the beneficialeffects that not only can high-concentration organic fertilizer completely fertilized in a methane-generating pit be absorbed, but also fast and accurate large-area fertilizer application can be realized, and a user can finish all operations in the cart without getting off the cart in the fertilizer applying process.

Description

technical field [0001] The invention relates to a liquid fertilizer application device and an application method thereof, which are suitable for the application of high-concentration liquid fertilizer (such as biogas fertilizer with high solid content), and belong to the field of agricultural machinery. Background technique [0002] Existing domestic liquid organic fertilizer pumping devices generally only have the function of absorbing fertilizer, pump liquid fertilizer (biogas slurry) into the fertilizer tank, then transport it to the farmland, discharge it to the side of the field, and then perform secondary application manually or related. The suction, transportation and application of liquid fertilizer cannot be completed in one piece. Either cause a large amount of manpower input, or need to increase the input of a large number of related application facilities. Foreign liquid organic fertilizer pumping devices generally have relatively large equipment, basically rely...

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Problems solved by technology

[0002] Existing domestic liquid organic fertilizer pumping devices generally only have the function of absorbing fertilizer, pump liquid fertilizer (biogas slurry) into the fertilizer tank, then transport it to the farmland, discharge it to the side of the field, and then perform secondary application manually or related. The suction, transportation and application of liquid fertilizer cannot be integrated

Either cause a lot of manpower input, or need to increase a lot of investment in related application facilities

Foreign liquid organic fertilizer pumping devices generally have relatively large equipment, basically relying on a large number of mechanical intelligent systems to achieve uniform distribution of material fertilization and large-scale liquid fertilizer application, which is not suitable for the material characteristics of biogas fermentation residues in my country Relatively inhomogeneous, it is difficult for the fertilizer distribution system to effectively distribute fertilizers evenly, and the investment in equipment is large. The scale of land management in my country is small, and the flatness of cultivated land is low, and its practicability is not high.

[0003] In the prior art, Chinese Patent No. CN201510960635.0 discloses a fertilization device for rice liquid fertilizer. The upper opening of the container does not use long-distance transportation, and the integrated operation of suction, transportation and fertilization cannot be realized; the transportation and fertilization device cannot cooperate well with the fertilizer truck for large-scale active fertilization within the horizontal plane; From the fertilizer inlet to the fertilizer outlet, there is a pressure compensation system to control the flow rate ball valve switch and balance the flow rate. Only liquid materials with relatively single material characteristics and low concentration can be applied, otherwise it will easily cause blockage of the fertilization system; in multi-point During the spraying process, the uniformity of the pressure distribution at each point is poor; the pressure compensation system equipment requirements for a balanced flow rate are relatively high

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