Slurry application system and slurry application drone

Abstract

To provide a slurry application system and a drone for applying slurry that can efficiently apply slurry. [Solution] A slurry application system 10 includes a delivery device 20 that delivers a slurry while stirring it, and a drone 30 having a nozzle 304 that sprays the slurry delivered by the delivery device 20, the direction in which the nozzle 304 sprays the slurry being shifted from the vertical direction by a spray angle θ. The spray angle θ is preferably 10 to 30 degrees.

Description

[Technical Field]

[0001] The present invention relates to a slurry application system and a slurry application drone. [Background technology]

[0002] Patent Document 1 relates to the prevention of disease in domestic chickens and poultry farming facilities, and discloses an environmentally friendly, easy-to-implement, and effective method for preventing disease in domestic chickens and poultry farming facilities. This quarantine method is characterized by carrying out quarantine treatment of poultry chickens and poultry facilities using a disinfectant solution containing an allyl isocyanate component. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Japanese Patent Application Laid-Open No. 2008-206664 Summary of the Invention [Problem to be solved by the invention]

[0004] Conventionally, for example, slaked lime has been spread manually to maintain hygiene and disinfect livestock barns. In particular, spreading slaked lime on the roof of a livestock barn necessarily requires work at a high altitude. The present invention aims to provide a slurry application system and a drone for applying slurry that can efficiently apply slurry. [Means for solving the problem]

[0005] The invention described in claim 1 includes a delivery device that delivers a slurry while stirring it, and a slurry delivery device that delivers the slurry by the delivery device. In a direction shifted by the injection angle θ from the vertical direction a drone having a nozzle for spraying; The spray angle θ is set to 10 to 30 degrees, and the position of the target to be coated with the slurry is set to be below the farthest point from the aircraft in the trajectory drawn by the tip of the rotating propeller of the drone when viewed from the side. A slurry application system.

[0006]

[0007]

[0008]

[0009]

[0010] Claim 2 The invention described in claim 1 In the described slurry application system, a hose through which the slurry delivered from the delivery device flows is connected to the nozzle, and the hose is provided with a valve for opening and closing the flow path through which the slurry flows.

[0011]

[0012] Claim 3 The invention described in Propeller and stirred The slurry In a direction shifted by the injection angle θ from the vertical direction Spraying nozzle and, A slurry application drone comprising: The spray angle θ is set to 10 to 30 degrees, and the position of the target to which the slurry is to be applied is set to be below the position farthest from the aircraft body in the trajectory drawn by the tip of the rotating propeller in a side view. This is a drone for applying slurry. [Effects of the Invention]

[0013] According to the present invention, it is possible to provide a slurry application system and a drone for applying slurry that can efficiently apply slurry. [Brief explanation of the drawings]

[0014] [Figure 1] 1 is an explanatory diagram showing a configuration of a slurry application system according to an embodiment of the present invention; [Figure 2] FIG. 2 is an explanatory side view of a drone provided in the slurry application system. DETAILED DESCRIPTION OF THE INVENTION

[0015] Next, embodiments of the present invention will be described with reference to the accompanying drawings to facilitate understanding of the present invention. Note that in the drawings, parts that are not relevant to the description may be omitted.

[0016] As shown in FIG. 1, a slaked lime slurry application system (an example of a slurry application system) 10 according to one embodiment of the present invention includes a delivery device 20 and a drone 30, and can apply slaked lime slurry (an example of a slurry), which is a mixture of slaked lime and water, using the drone 30. The object to which this slaked lime slurry is applied is, for example, the roof of a livestock house such as a chicken coop or the ground around the livestock house. The slurry to be applied is not limited to slaked lime slurry, and other slurries include, for example, a mixture of dolomitic lime and water, and mud (a mixture of sand or soil and water).

[0017] The delivery device 20 includes a carriage 202, an agitation container 204, an agitator 206, and a pump 208, and can deliver the hydrated lime slurry while agitating it.

[0018] The cart 202 has casters 210 at the bottom and is configured to be movable.

[0019] The stirring vessel 204 is placed on a cart 202, and water and slaked lime are poured into the stirring vessel 204. The capacity of the stirring vessel 204 is, for example, 100 to 150 [L].

[0020] The agitator 206 is fixed to the cart 202 and can agitate the water and slaked lime introduced into the agitation vessel 204 . Here, since slaked lime is difficult to dissolve in water, if left for a certain period of time, the slaked lime will settle to the bottom of the stirring vessel 204. Therefore, by stirring with the stirrer 206, the slaked lime will be kept suspended in the water.

[0021] The pump 208 can deliver the hydrated lime slurry while it is being agitated by the agitator 206 . A suction-side hose 212 extending from the bottom of the agitation vessel 204 is connected to the suction side of the pump 208, and a discharge-side hose 214 extending to the drone 30 is connected to the discharge side. The discharge-side hose 214 is provided with a valve 40 for opening and closing the flow path through which the slaked lime slurry flows.

[0022] The drone (an example of a drone for applying slurry) 30 can apply the hydrated lime slurry delivered from the delivery device 20. The drone 30 is a multicopter and has a camera (not shown), a skid 302, and a nozzle 304, as shown in FIG.

[0023] The camera can capture the image in front of the aircraft, and the captured image is displayed on the screen of the proportional controller operated by the operator.

[0024] Skid 302 is a landing gear provided on the bottom of the aircraft to support the aircraft on the ground.

[0025] The nozzle 304 is attached to the skid 302 via a bracket (not shown), and the tip of the nozzle 304 is located forward of the center of the aircraft including the propeller 306 in a plan view. However, the offset direction is not limited to the front side, and may be the rear side or the left or right side. A discharge hose 214 extending from the pump 208 is connected to the nozzle 304 , and the slaked lime slurry that has been agitated by the agitator 206 is sprayed from the nozzle 304 . Therefore, the nozzle 304 is less likely to become clogged than when slaked lime slurry is injected without being agitated.

[0026] The direction in which the nozzle 304 injects the slaked lime slurry is shifted from the vertical direction by an injection angle θ, and the injection angle θ is, for example, 10 to 30 degrees. Furthermore, the jet direction in plan view is the forward direction of the drone 30. However, the jet direction in plan view may be any direction in which the nozzle 304 is offset from the center of the aircraft. For example, if the nozzle 304 is offset rearward, the jet direction will be the rearward direction of the drone 30.

[0027] Here, the injection angle θ is set to be an acute angle of a right triangle formed by the adjacent side of length L1 and the opposite side of length L2. The length L1 of the adjacent side is the height of the nozzle hole of the nozzle 304 relative to the position T of the coating target in the spray direction of the nozzle 304. The length L2 of the opposite side is the distance from the ejection position of the nozzle 304 to the position T of the coating target in plan view. As shown in FIG. 2, the position T of the application target is set to be below the position farthest from the aircraft body on the path drawn by the tip of the rotating propeller 306 in side view.

[0028] From another perspective, the injection angle θ is expressed by the following equation (1).

[0029] θ = tan -1 (L2 / L1) Equation (1)

[0030] The length L1 of the adjacent side is preferably 2 m or more. If the length L1 of the adjacent side is less than 2 m, the injected slaked lime slurry will be significantly stirred up by the effect of downwash, causing soiling of the aircraft body. Furthermore, the length L1 of the adjacent side is preferably 4 m or less. If the length L1 of the adjacent side exceeds 4 m, the sprayed slaked lime slurry will scatter, making it difficult to apply it efficiently.

[0031] The nozzle 304 has two spray patterns, a first spray pattern and a second spray pattern, which can be switched depending on the object to be coated. The first spray pattern is, for example, a full cone pattern, and the second spray pattern is, for example, a flat cone pattern. It's a pattern.

[0032] Next, the operation of the slaked lime slurry application system 10 (method of applying slaked lime slurry) will be described. The slaked lime slurry is applied in accordance with the following steps S1 to S7.

[0033] (Step S1) The slaked lime slurry application system 10 is transported to the vicinity of the livestock barn to which the slaked lime slurry is to be applied. After transportation, the discharge-side hose 214 extending from the delivery device 20 is connected to the nozzle 304 of the drone 30.

[0034] (Step S2) Water and slaked lime are charged into the stirring vessel 204 of the delivery device 20, and then stirred using the stirrer 206 to produce slaked lime slurry. The slaked lime slurry is stirred until application is complete.

[0035] (Step S3) The operator operates the proportional controller to fly the drone 30 towards the livestock barn.

[0036] (Step S4) With valve 40 closed, pump 208 of delivery device 20 is operated.

[0037] (Step S5) After the drone 30 reaches the sky above the roof of the livestock barn to be coated, the operator or his / her assistant opens the valve 40. When the valve 40 is opened, the hydrated lime slurry delivered from the pump 208 flows through the inside of the discharge side hose 214 and is sprayed from the nozzle 304 .

[0038] (Step S6) The slaked lime slurry sprayed from the nozzle 304, combined with the downwash action of the propeller 306, reaches the roof of the livestock barn before being scattered widely outside the application target.

[0039] Here, as shown in Figure 2, even if there is a wall on the roof of the livestock barn that acts as an obstacle, the slaked lime slurry is sprayed at a spray angle θ, so by moving the drone 30 close to the wall, the slaked lime slurry is also applied to the corner C of the livestock barn. The operator moves the machine while spraying the hydrated lime slurry, spreading the hydrated lime slurry evenly over a specified area.

[0040] (Step S7) After application is complete, valve 40 is closed and the operator lands drone 30. Additionally, the agitator 206 and pump 208 are turned off.

[0041] By carrying out the above steps S1 to S7, the slaked lime slurry application system 10 is used to apply the slaked lime.

[0042] As described above, according to the slaked lime slurry application system 10 of this embodiment, slaked lime can be applied more efficiently than when an operator applies the slaked lime by holding a nozzle.

[0043] Although the embodiments of the present invention have been described above, the present invention is not limited to the above-described embodiments, and all changes in conditions that do not depart from the gist of the present invention are within the scope of application of the present invention. [Explanation of symbols]

[0044] 10. Slaked lime slurry application system 20 Delivery device 30 Drone 40 valves 202 Cart 204 Stirring vessel 206 Mixer 208 Pump 210 Caster 212 Suction hose 214 Discharge hose 302 Skid 304 Nozzle 306 Propeller

Claims

1. a delivery device that delivers the slurry while stirring it; a drone having a nozzle that sprays the slurry sent out by the sending device in a direction shifted by a spray angle θ from the vertical direction, The spray angle θ is 10 to 30 degrees, A slurry application system in which the position of the target to be coated with the slurry is set to be below the farthest point from the aircraft body on the trajectory drawn by the tip of the rotating propeller of the drone when viewed from the side.

2. A hose through which the slurry delivered from the delivery device flows is connected to the nozzle, 2. The slurry application system according to claim 1, wherein the hose is provided with a valve for opening and closing a flow path through which the slurry flows.

3. A propeller, A nozzle that sprays the stirred slurry in a direction shifted by a spray angle θ from the vertical direction. The spray angle θ is 10 to 30 degrees, The position of the target to be coated with the slurry is set to be below the farthest point from the aircraft on the trajectory drawn by the tip of the rotating propeller when viewed from the side.

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