JPH0242631Y2 - - Google Patents

Description

[Detailed description of the invention] [Field of industrial application] The present invention relates to a tank device, for example, for transporting a mixed liquid in which soil, fertilizer, greening seeds, adhesive, etc. are mixed into the liquid while stirring. , and related to the material used for spraying.

(Prior Art) Conventionally, this type of tank device has a circular cross-section, and has a structure in which a stirring blade is rotatably supported in the center of the tank device.

The above-mentioned tank device is mounted on a truck, and rotates the stirring blade to mix and stir the liquid mixture for spraying soil, greening seeds, etc. stored inside the tank device, and sprays it on fields, sowing areas, etc. It is now being transported to the ground.

[Problem that the invention attempts to solve]

In the case of the above structure, it is conceivable to increase the size of the tank in order to increase the spraying area that can be sprayed in one conveyance.

However, since the tank is mounted on a truck, if the tank is made larger, its weight and height will be regulated by vehicle regulations. Therefore, if the tank has a circular cross-sectional shape, the internal volume of the tank will be small, and the inner wall of the tank will be prone to wear and corrosion due to the nature of the mixed liquid contained and the action of stirring by the stirring blades, so these should be taken into consideration. If it is made of a thick material, the weight will be extremely large compared to the internal volume, and there will be a problem in that it will be subject to weight restrictions under vehicle regulations.

Therefore, this invention was made in view of the above points,
It is an object of the present invention to provide a tank device that can increase the internal volume of a tank that stores a mixed liquid, can evenly stir the mixed liquid in the tank, and has improved abrasion resistance and weight reduction. It is something.

[Means for solving problems]

This invention uses a relatively thin member to build a storage tank.
The storage tank is formed into a substantially elliptical cross-sectional shape with a lower curvature larger than the upper curvature, and a stirring blade that rotates on a rotational locus close to the lower side of the storage tank is disposed within the storage tank, The present invention is characterized in that a thermal sprayed metal layer with high wear resistance is integrally formed on the inner wall surface of the lower portion of the storage tank, in which at least the upper stirring blade rotates close to each other.

[Function] By configuring the present invention as described above, the internal volume of the storage tank is increased, and it is possible to store an amount of mixed liquid that can increase the spraying area in one conveyance. can.

In addition, by rotating the stirring blade, the stirring blade is rotated while drawing a rotation trajectory that approximates the curvature of the sprayed metal layer on the lower side of the tank, fluidizing the entire mixed liquid and stirring it. be able to.

〔Example〕

An embodiment of the present invention will be described below with reference to the accompanying drawings.

Reference numeral 1 denotes a thin storage tank made of synthetic resin such as iron or polyethylene and having a substantially elliptical cross section. A sprayed metal layer 4 made of a highly wear-resistant and corrosion-resistant material such as titanium, molybdenum, or ceramic is integrally formed on the inner wall surface of the side portion 3. Further, the storage tank 1 is supported by a support frame 5 at its lower side. The storage tank 1 has a supply port 6 formed at one end of the upper part 2, and a lid 7 is attached to the supply port 6 so that it can be opened and closed. The inside is completely sealed. Further, a bearing 9 is provided at approximately the center of the side surface of the tank 1 so as to face the side surface, and both ends of a rotating shaft 11 of a stirring blade 10 disposed inside the tank 1 are rotatably mounted on both bearings 9. The rotary shaft 11 has approximately 90 mm installed at a predetermined interval.
A large number of stirring rods 12 are installed at different mounting positions, and a stirring blade 1 is attached to the tip of each stirring rod 12.
3 is installed. The agitating blade 10 is configured to agitate the mixed liquid stored in the tank 1 by driving a rotating shaft 11 by an internal combustion engine (not shown). Each of the stirring blades 13 of the stirring blade 10 is rotated along a rotation locus that approximates the curvature of the sprayed metal layer 4 in the lower portion 3 of the storage tank 1. Further, each stirring blade piece 13 of the stirring blade 10 is twisted so as to transfer the stored material toward the other end while stirring it.

Next, one end of a conduit 14 is connected and opened at the bottom of one side of the other end of the tank 1, and a pump 1 for liquid delivery is connected to the other end of the conduit 14 via a valve 15.
6 are connected. Further, one end of a liquid feeding pipe 17 is connected to the pump 16, and a spraying port 20 is provided at the other end of the liquid feeding pipe 17 for spraying the stored material in the tank 1 through tips 18 and 19. installed. Further, an internal combustion engine 21 that drives the pump 16 is connected to the pump 16, and one end of an exhaust pipe 23 is connected to an exhaust section 22 of the internal combustion engine 21, and the other end of the exhaust pipe 23 is connected to a non-return valve. A switching socket 25 is attached via a valve 24, and air supply pipes 26, 27 are connected to this switching socket 25.
One end of the air supply pipe 26 is connected to each other, and the other end of the one air supply pipe 26 is connected and opened at a position near the pump 16 in the middle of the liquid supply pipe 17.
The other end of the other air supply pipe 27 is connected and opened into the dispersion port 20 via a socket 28, and the exhaust gas of the internal combustion engine 21 is directed to the liquid supply pipe 17 and the dispersion port 20 by the switching operation of the switching socket 25. It is meant to lead. Further, the exhaust pipe 23 passes through the tank 1 on the way, and a plurality of heat sinks 29 are provided around the exhaust pipe 23 in the tank 1 to separate the exhaust gas flowing through the exhaust pipe 23 and the accumulated material in the tank 1. The temperature of the exhaust gas is lowered by exchanging heat with the mixed liquid, thereby preventing harmful effects on seeds, etc. in the mixed liquid due to contact between the high-temperature exhaust gas and the mixed liquid.

One end of a supply conduit 30 is connected and opened to the exhaust pipe 23 between the check valve 24 and the switching cock 25, and the other end of this supply conduit 30 is connected and opened to the upper part of the tank 1 via the cock 31. , the exhaust gas is introduced into the tank 1 to increase the internal pressure in the tank 1, and when this internal pressure becomes too high, a safety valve 32 provided on the lid 7 that seals the supply port 6 of the tank 1 is opened to adjust the pressure. It's getting old. Further, in order to adjust the exhaust amount discharged from the internal combustion engine 21, a cock 33 connected to the exhaust pipe 23 between the internal combustion engine 21 and the check valve 24 is provided.

In the device configured in this way, the supply port 6
More liquid is put into the tank 1, and a predetermined amount of soil, fertilizer, seeds for greening, adhesive, etc. are also put into the tank 1, and the stirring blades 10 are rotated by the drive of an internal combustion engine (not shown). The mixed liquid in the tank 1 is stirred. At this time, the width of the tank 1 is increased in order to increase the volume, but since the lower part 3 of the tank 1 is formed with a large curvature, even if soil etc. settles at the bottom of both sides of the tank 1, it will not be removed. They are stirred by the rotation of the stirring blade 10 in the vicinity of the lower part 3 having a large curvature, that is, the stirring blade 1
Since the stirring blades 13 of No. 0 rotate with a rotation locus that approximates the curvature of the lower part 3 of the tank 1, that is, the curvature of the sprayed metal layer 4, the entire stored material is fluidized and completely stirred. .

Next, the valve 15 of the conduit 14 is opened to drive the internal combustion engine 21 and the pump 16 connected thereto.
When driven in conjunction with each other, the mixed liquid in the tank 1 is sucked into the pump 16 via the conduit 14 and sent out to the liquid feed pipe 17.
By opening 19, it is discharged and sprayed from the spraying port 20.

Along with this, the exhaust from the internal combustion engine 21 is transferred to the exhaust pipe 2.
The temperature is lowered by passing through the tank 1 in the middle of the tank 1, and the temperature is lowered and the flow is forced into the middle of the liquid feed pipe 17 via one of the air feed pipes 26 by the switching cock 25, and the air inside the liquid feed pipe 17 is The flow resistance of the mixed liquid being transferred is reduced, the transfer force is increased, and the mixed liquid is sprayed from the spraying port 22. Further, by switching the switching knob 25, the exhaust gas of the internal combustion engine 21 flows into the other air supply pipe 27, and is sprayed together with the liquid accumulated material from the spraying port 20 by the opening operation of the switching knob 28.
In addition, when dispersing mixed liquid over a long distance,
By opening both the switching pots 25 and 28 and guiding the exhaust gas to the middle of the liquid sending pipe 17 and the spraying port 20, the spraying force is maximized and the flying distance can be increased. In addition, by completely closing the switching pot 25 and stopping the introduction of exhaust gas into the liquid feed pipe 17, and discharging the exhaust air from the spray port 20 via the liquid feed pipe 27, the spraying force is weakened and the distance the liquid flies. The liquid is sprayed locally without being dispersed widely, and by adjusting the switching of the switching knob 25 and adjusting the exhaust amount to the liquid supply pipe 17 via the air supply pipe 26, the liquid is sprayed. You can adjust the flight distance.

Further, the exhaust gas from the internal combustion engine 21 is supplied to the upper part of the tank 1 by opening the stop 31 of the supply conduit 30 connected and opened in the middle of the exhaust pipe 23.
This exhaustion increases the internal pressure in the tank 1, and this pressure pressurizes the mixed liquid from the top and pumps 16.
be assisted by the side. Therefore, even if the pump 16 is located at a higher level than the liquid level, the mixed liquid is automatically pumped and supplied by the pump 16, and the mixed liquid is pumped as soon as the pump 16 is started without the need for water. Can be suctioned and sprayed smoothly. In addition, a check valve 24 is installed in the middle of the exhaust pipe 23, so even if the internal pressure of the tank 1 increases, the backflow of exhaust gas is prevented.Furthermore, if the internal pressure of the tank 1 exceeds a predetermined pressure, a safety valve 24 is provided. 32 opens to adjust the pressure. Further, by adjusting a cock 33 connected in the middle of the exhaust pipe 23, the exhaust amount led out from the internal combustion engine 21 to the spray port 20 and the tank 1 is adjusted.

Note that the exhaust from an internal combustion engine (not shown) that drives the stirring blades 10 may be used together with the exhaust from an internal combustion engine 21 for driving the pump 16.
may also be used for driving the pump 16 and stirring blades 10.

In addition, in this embodiment, when increasing the flying distance of the mixed liquid, the exhaust gas was guided to the dispersion port 20 through the air supply pipe 27, but simply guiding the exhaust air to the middle of the liquid supply pipe 17 can sufficiently achieve the purpose. can do. Further, the mixed liquid to be sprayed is not limited to a liquid mixed with seeds, etc., but may also be a liquid mixed with a greening corrosive acid, a fire extinguishing liquid, etc., and can also be applied to other watering-related work.

[Effect of idea]

According to the present invention, the storage tank has a substantially elliptical cross section with a lower curvature larger than the upper curvature, thereby making it possible to increase the internal volume of the storage tank. Even if the stored material tries to settle at the bottom of both sides of the storage tank, the curvature of the lower side of the storage tank is large, so the stored material will not accumulate and will be moved toward the bottom of the storage tank, and will be moved along the rotation trajectory close to this. The rotating stirring blades can reliably stir the stored material, and therefore the stored material can be fluidized and evenly stirred throughout the storage tank.

In addition, a thermal sprayed metal layer is formed on the inner wall surface of the lower part of the storage tank, which has a large curvature, where the stirring blades rotate close to each other, so that the wear resistance and corrosion resistance of the inner wall surface, which is the part that is most likely to wear out, is reliably strengthened. Therefore, it is not necessary to form the entire storage tank from a thick material, so the overall weight can be significantly reduced.

Therefore, it is possible to obtain a large-capacity tank within the limits of vehicle regulations, and also to provide a tank device that is strong in terms of strength.

[Brief explanation of drawings]

FIG. 1 is a side view of a tank device showing one embodiment of the present invention, FIG. 2 is a front view of the same, FIG. 3 is an explanatory view of the same, and FIG. 4 is an enlarged sectional view of a part of the tank. DESCRIPTION OF SYMBOLS 1...Storage tank, 2...Upper side of storage tank, 3...Lower side of storage tank, 4...Sprayed metal layer, 10...Stirring blade.

Claims (1)

[Scope of utility model registration request] a storage tank having a generally elliptical cross section and a lower curvature larger than the upper curvature; a stirring blade disposed within the storage tank and rotated on a rotation locus close to the lower side of the storage tank; A tank device comprising: a highly wear-resistant thermal sprayed metal layer integrally formed on an inner wall surface of a lower portion of the storage tank in which at least the stirring blade rotates close to the tank.