JPH11103752A - Chemical diluting mixer - Google Patents

Abstract

PROBLEM TO BE SOLVED: To solve problems that some agent remains in most cases at the time of completing operations in conventional spraying operations; water in the remaining agent is evaporated to increase the concentration or precipitated when preserved to make the next use thereof difficult and the remaining liquid is disposed to cause deterioration in environments or the like. SOLUTION: This diluting mixer is capable of discharging pure water with a power sprayer 2, measuring the flow rate of the discharged pure water, regulating and controlling the amount of a chemical forcedly fed with pumps 24 and 25 according to the flow rate, pressing in the chemical forcedly fed with the pumps 24 and 25 into the discharged pure water and spraying the diluted agent from a spraying part 17. The chemical to be forcedly fed with the pumps 24 and 25 is individually sealed in plural cassette type tanks and the chemical is fed through flow rate controlling mechanism 31 arranged under the respective tanks to the pumps 24 and 25. The plural chemicals are forcedly fed to the discharged pure water with the power sprayer 2 and diluted.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a composition for mixing and diluting a powdery medicine, a liquid medicine and fresh water at a predetermined ratio, and spraying the medicine.

[0002]

2. Description of the Related Art Conventionally, a power sprayer, a speed sprayer, a boom sprayer, and the like have been used for spraying a liquid agent on crops such as orchards, paddy fields, and fields. Drugs to be sprayed by these spraying devices were previously charged with water and a drug into a drug tank, diluted to a specified concentration, stored, stirred, and then sprayed with a drug solution on a field or orchard. .

[0003]

However, in a usual spraying operation, a large amount of the chemical is made so that the operation is not interrupted due to a shortage of the chemical, and almost all of the chemical remains at the end of the operation. If the remaining chemical solution is stored, the water will evaporate and its concentration will increase, or it will precipitate, making it difficult to use next time. It is advisable to clean and empty the tank, but the remaining chemicals cannot be easily disposed of due to pollution or environmental concerns, and may be sprayed twice or sprayed on other crops or garden trees. It was. Further, at the end of the operation, it is necessary to perform cleaning to remove the chemical solution attached to the inside of the chemical solution tank, which is complicated.

[0004]

The problem to be solved by the present invention is as described above. Next, means for solving the problem will be described. A structure in which fresh water is discharged by a pump, and a medicine is mixed into the discharged fresh water, wherein a flow rate detecting means for fresh water is arranged between the pump and the medicine mixing section, and between the medicine tank and the mixing section. The detection means and the injection amount adjustment means of the injection amount of the medicine are arranged, the dilution concentration setting device and the detection means and the injection amount adjustment means are connected to the control circuit, and the set diluted drug solution is sprayed from the spray unit. It was done. Further, a plurality of the medicine tanks are arranged in parallel as a cassette type tank, connected to a medicine pump via a flow rate adjustment mechanism below each tank, and a discharge side of the medicine pump is connected to the mixing section, and the flow rate adjustment is performed. The mechanism and the drive unit of the drug pump are connected to a control circuit so that a plurality of drugs are diluted to a set concentration and sprayed.

[0005]

Next, an embodiment of the present invention will be described. FIG. 1 is an overall side view of a self-propelled control device equipped with the drug dilution mixer of the present invention, FIG. 2 is a block diagram of the drug dilution mixer of the present invention, FIG. 3 is a block diagram for controlling the dilution mixer,
FIG. 4 is a diagram illustrating a cassette type tank.

First, the overall configuration of a self-propelled pest control equipped with the drug dilution mixer of the present invention will be described with reference to FIG. A chassis 9 is fixedly mounted on a crawler traveling device 10 formed by winding left and right crawlers. An operation unit 5 is formed on a front portion of the chassis 9, and a roof 20 is disposed above the operation unit 5.
Is covered. An operation column 12 having a steering lever is provided upright in front of the driving unit 5, and the steering lever 3 and the parking brake lever 4 are arranged on the operation column 12.
A driver's seat 11 is disposed at the left and right center of the rear part of the driver 5, a side column is provided on the left side of the driver's seat 11, and a dynamic injection clutch for operating the main shift lever 5, the auxiliary shift lever, and the power sprayer 2. A lever, a cock for opening and closing water supply to the spray unit 8 at the rear, and the like are arranged.

On the chassis 9 behind the driver's seat 11, a tank chamber 13 for accommodating a fresh water tank 21 for storing fresh water is provided at a front portion, and a power room 14 is provided at a rear portion to provide driving and power spraying. Engine 15 for driving the machine, transmission case, hose reel for manual spraying, battery 1
9. Power sprayer 2 and tanks 22 and 23 for storing medicines
Etc. are stored, and these are covered with a cover.

Further, in the spraying section 8, the spraying section 8
Is covered with a spray unit cover 16, and the swing spray unit 17 is formed in a fan shape in rear view so as to be housed in the spray unit cover 16. A lower spray portion 18 is provided below the left and right lower ends of the oscillating spray portion 17. A plurality of nozzles 1... Are radially projected on the outer peripheral portion of the oscillating spray section 17 and the lower spray section 18, and each of the nozzles 1, 1. Are turned in a circle or an ellipse. By these nozzles 1.1, ...
The chemical solution pumped from the power sprayer 2 to the spray unit 8 is sprayed. The oscillating spray unit 17 is divided into three parts, that is, left, right, and upper center, so that spray control can be performed independently of each other. For example, when there is no branch above the trees, the pumping of the chemical to the nozzle of the central spraying unit is stopped, and the chemical is sprayed from the nozzles on both the left and right sides.

In the present invention, the fresh water in the fresh water tank 21 is sucked by the power sprayer (pump) 2, the medicine is diluted by the dilution mixer 6 with fresh water, and
, And sprayed from nozzles 1, 1 ... FIG.
As shown in the figure, the dilution mixer 6 includes a wettable powder tank 22 for enclosing a wettable powder composed of powder or liquid, a liquid tank 23 for encapsulating an emulsifier and a chemical, and a wettable powder for pumping the wettable powder. It comprises a pump 24, a liquid pump 25 for pumping a liquid, a mixing section 28 and 29 for mixing agents such as a wettable powder and a liquid, and a mixing tank 30.

An on-off valve 31 comprising an electromagnetic valve is disposed below the wettable powder tank 22 to prevent the liquid from leaking from the wettable powder tank 22 except during work. Similarly, an on-off valve 32 is provided below the liquid agent tank 23. The wettable powder pump 24 and the liquid pump 25 are driven via driving devices 26 and 27, respectively, and the amount of the wettable powder or the liquid to be pumped to the mixing sections 28 and 29 is adjusted by changing the rotation speed. Have been. However,
Instead of the on-off valve 31 and the wettable powder pump 24, and the on-off valve 32 and the liquid agent pump 25, an electromagnetic proportional valve can be used to open and close and adjust the flow rate. The wettable powder tank 22 and the liquid drug tank 23 are provided with level sensors 34 and 35 for detecting that the remaining amount of the wettable powder or the liquid drug has reached a certain level or less.

On the other hand, a hose 36 is connected to the discharge side of the power sprayer 2. The mixing sections 28 and 29 are disposed at an intermediate position of the hose 36, and each of the mixing sections 28.
9, the wettable powder pumped by the wettable powder pump 24 and the liquid pumped by the liquid pump 25 are pressed into each mixing section 28.2.
Mix in 9 with Shimizu and dilute. The hose 36
The discharge section of the power sprayer 2 is provided with a flow meter 37 as a means for detecting the input amount, and measures the flow rate of fresh water discharged from the power sprayer 2.

A mixing tank 30 is connected to the end of the hose 36 to temporarily store the chemical solution and the fresh water pumped from the mixing sections 28 and 29, and to make the concentration of the chemical solution uniform. Stirring. The terminal end of the mixing tank 30 communicates with the oscillating spray unit 17 via a chemical hose 39. It should be noted that the composition is configured such that the medicine is pumped from the wettable powder pump 24 and the liquid pump 25 to the mixing sections 28 and 29 and diluted with fresh water.
It is also possible to adopt a configuration in which the medicine is directly pumped from the liquid medicine pump 25 to the mixing tank 30.

A controller (control circuit) 50 is controlled to produce a chemical solution having a concentration set by an operator. That is, as shown in FIG. 3, on the input side of the controller 50, a wettable powder flow sensor 40 for detecting the flow rate of the wettable powder, a liquid medicine flow rate detection sensor 41 for detecting the flow rate of the liquid medicine, a flow meter 37, Sensor 34.3
5. The sensor 42 for detecting the remaining amount of the fresh water tank 21, the concentration setting unit 55, and the like are connected. This density setting unit 55
In, the concentrations of various drugs are set and can be changed at any time. The set concentration of each drug is displayed in the setting display section 56 in FIG.
Is displayed with.

On the output side of the controller 50, solenoids 51 and 52 for the on-off valves 31 and 32,
A concentration display unit 53 is connected, and the concentration display unit 53 displays the current concentration of the drug solution. Also, an alarm 54 for warning that the remaining amount of the medicine or fresh water is low based on the detection values of the level sensors 34 and 35 and the sensor 42, and an alarm device 5 for warning each individual abnormality such as a pump.
7 is connected. The driving devices 26 and 27 are connected to the output side of the controller 50.

In such a configuration, in the case of spraying a chemical solution, first, an operator sets the concentration of each medicine in the concentration setting section 55 and inputs the concentration to the controller 50. Then, when the fresh water is discharged by the power sprayer 2, the flow rate of the fresh water is measured by the flow meter 37, and the flow rate of the fresh water is input to the controller 50. Subsequently, the controller 50 calculates the amount of the wettable powder and the liquid agent to be pumped with respect to the flow rate of the fresh water, and drives the driving device 26 so that the calculated amount is discharged.
The wettable powder pump 24 and the liquid pump 25 are driven by 27 to pump the wettable powder and the liquid to the mixing units 28 and 29 under pressure. Then, this chemical solution is agitated in the mixing tank 30 and sprayed from the swing spraying unit 17.

During the spraying operation, the flow rate of the fresh water measured by the flow meter 37 is constantly input to the controller 50, and the wettable powder and the liquid material from the wettable powder flow rate detection sensor 40 and the liquid material flow rate detection sensor 41 are inputted. The flow rate is input, and the driving force of the wettable powder pump 24 and the liquid medicine pump 25 is controlled so that each medicine has a set concentration. Further, the concentration of each drug in the drug solution is calculated from the flow rate of the fresh water and the amount of each drug pumped from the wettable powder pump 24 and the liquid drug pump 25, and displayed as the current concentration by the concentration display unit 53, so that the operator can visually check the concentration. You can check it at Furthermore, the alarm from the alarm 54 can be used to know that the remaining amount in the wettable powder tank 22, the liquid tank 23, and the fresh water tank 21 is low, and the operation can be started immediately.

Further, the wettable powder tank 22 and the liquid medicine tank 23 may be constituted by a plurality of cassette type tanks to dilute a plurality of medicines. As shown in FIG. 4, the wettable powder tank 22 (and the liquid medicine tank 23) is composed of a plurality of cassette tanks 60a, 60b, 60c,.
Is stored in the case 61. Each cassette tank 6
0a ・ 60b ・ 60c ・ ・ ・ Hose 6 at the bottom
Are connected to each other. Each hose 62
The throttle valve 31a composed of an electromagnetic proportional valve is provided in the middle of.
31b, 31c (or throttle valves 32a, 32b)
. 32c ...) are interposed. The throttle valve 31a.
The solenoids 31b, 31c,... Are connected to the controller 50 to control the discharge amount. Also, the throttle valves 31a, 31b, 31 on each of the hoses 62, 62 ...
The medicine flow meters 59a, 59b,.
Are output to the controller 50 by the measurement values of the drug flow meters 59a, 59b,. Further, the other end of each of the hoses 62 is connected to one,
It is connected to the wettable powder pump 24 (or the liquid drug pump 25) via the check valve 63.

With this configuration, the wettable powder tank 22
(Or liquid tank 23) cassette tank 60a
The wettable powder (or liquid) can be individually enclosed for each of 60b, 60c,. Examples of the hydrating agent include commercially available brand names such as Lobral wettable powder, dimandaisen wettable powder, diazinonone wettable powder, supraside wettable powder, and the like. Is used. Such wettable powders and emulsifiers are suitable for spraying orchards such as pears and grapes.

Then, in order to prepare a chemical solution suitable for the spraying operation, the controller 50 is used to prepare the cassette tank 60.
The amount to mix each wettable powder and each liquid in a, 60b, 60c,... with fresh water is set. The controller 5
0 is connected to a mixing amount setting machine 58 for setting the mixing amount of each medicine by the operator. As described above, the controller 50 includes the throttle valves 31a and 3a.
1b, 31c... And a drug flow meter 59a
. 59b are connected. Further, the controller 50 is connected to the driving device 26 (or the driving device 27) of the wettable powder pump 24 (or the liquid material pump 25). Reference numeral 49 in the figure denotes an on-off valve.

With such a configuration, the concentration of each drug in the drug solution is set by the mixing amount setting device 58 by the operator and input to the controller 50. The controller 50 determines the flow rate of the fresh water measured by the flow meter 37 described above, and adjusts each of the cassette tanks 60a and 60 so that each of the wettable powder and each of the liquid materials has the set concentration according to the flow rate of the fresh water.
.. 0b, 60c... The throttle valves 31a, 31b, 31c,.
Controlling the solenoids of the throttle valves 31a, 31b, 3
.. (Or the throttle valve 32). The adjusted amount of each drug is sent to the wettable powder pump 24 (or liquid drug pump 25), and is pumped so as to be diluted with fresh water. In addition, hose 60
..The structure for adjusting the amount of the drug passing through the inside is the throttle valve 3.
It is not limited to 1 · 31 (or the throttle valve 32), but a configuration is used in which the flow rate of the drug is adjusted by controlling the feeding speed of the feeding device using a feeding device or the like as a flow rate adjusting mechanism. You can also. Thus, at the end of the spraying operation, each cassette tank 60 can be taken out as shown by the two-dot chain line 60 'in FIG. 4 and taken out at a stage suitable for storage before mixing each medicine.

[0021]

As described above, the present invention has the following advantages. That is, by configuring as in claim 1, the drug solution is stored immediately before spraying, compared with the conventional configuration in which the drug solution diluted beforehand is stored in the drug solution tank and the drug solution is sprayed. Deterioration and separation of the chemical solution can be prevented, and the sprayed fruit trees and the like can be reliably controlled. Also,
Since the chemical solution is formed at the same time as the spraying, only the amount of the chemical solution required for the spraying is prepared, and there is no surplus of the chemical solution at the end of the work, and there is no need to treat it as a waste liquid.

Further, since the discharge amount is adjusted by a power atomizer in order to increase or decrease the spray amount, the amount of the wettable powder and the liquid agent to be pumped by the pump is adjusted accordingly. Since the adjustment is performed, it is possible to constantly prepare a chemical solution having a constant concentration suitable for spraying, and to surely control the sprayed fruit trees and the like.

Also, since the medicine tank is of a cassette type, by taking out each cassette type tank at the end of the work, the medicine can be taken out before mixing the medicine, and the medicine can be stored. The use cost of the medicine can be reduced. Further, it is possible to eliminate the troublesome work of cleaning the inside of the tank after the work is completed.

Further, by controlling the flow rate adjusting mechanism, the amount of medicine to be sent to the pump can be adjusted in accordance with each medicine, and a medicine solution having a set concentration can be produced. In addition, since a plurality of drugs are pumped by a single pump, the structure is simple, the cost is reduced, and the space is advantageous.

[Brief description of the drawings]

FIG. 1 is a side view of a self-propelled control device equipped with a chemical dilution mixer of the present invention.

FIG. 2 is a block diagram of the drug dilution and mixing machine of the present invention.

FIG. 3 is a block diagram for controlling a dilution mixer.

FIG. 4 is a diagram illustrating a cassette type tank.

[Explanation of symbols]

 2 Power sprayer 17 Swinging spray unit 24 Hydrating pump 25 Liquid pump 37 Flow meter 60 Cassette tank

Claims (2)

[Claims] 1. A structure in which fresh water is discharged by a pump, and a medicine is mixed into the discharged fresh water. A means for detecting a flow rate of the fresh water is arranged between the pump and the medicine mixing section, and a medicine tank is provided. And a mixing unit, between which a detecting unit and a adjusting unit for detecting the amount of the medicine to be injected are connected, and the dilution concentration setting unit and the detecting unit and the adjusting unit are connected to a control circuit. A drug dilution mixer characterized by spraying more. 2. A plurality of the medicine tanks are arranged in parallel as a cassette type tank, connected to a medicine pump via a flow rate adjusting mechanism below each tank, and a discharge side of the medicine pump is connected to the mixing section, 2. The drug dilution and mixing machine according to claim 1, wherein the flow rate adjusting mechanism and the drive unit of the drug pump are connected to a control circuit so as to dilute a plurality of drugs to a predetermined concentration and spray.