JPH04289325A - Spraying of spray base for vegetation work - Google Patents

Abstract

PURPOSE:To omit stirring and drying processes by a method in which vegetating materials sent by a blower are mixed with a mixture of seeds, water, and fertilizer supplied by a pump, and the mixture is sprayed from a throttle nozzle. CONSTITUTION:Vegetating materials 3 supplied by a belt conveyer 2 are agitated and sent out in the direction of a spray nozzle 6 through a supply hose 5 by air from an air blower 4 in a sprayer 1. Water supplied through a hose 9 from a water tank 8 is mixed with seeds 11 and fertilizer 12 supplied by a belt conveyer 10 in a mixing tank 7, and the mixture is sent out in the direction of the nozzle 6 through a hose 14 by a pump 13. In spraying them, the material 3 is sent out by air of 3-4m<3>/min to the nozzle 6 and the water mixed with seeds 11 and the fertilizer 12 is sent out in a rate of about 17.3 liter/min to the nozzle 6.

Description

[Detailed description of the invention]

0001

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method of spraying a spray base material mixed with seeds and vegetation materials onto a slope, for example, in order to green the slope.

0002

[Prior Art] One of the methods for spraying the above-mentioned spray base material is
There is a dry spraying method. In the conventional dry spraying method, seeds and vegetation material mixed in a mixer are sent as a spraying base material to a spraying nozzle by the air pressure of a compressor, and water is injected at the outlet of the spraying nozzle. It was intended to be sprayed onto the surface to be constructed, such as a slope.

However, this dry spraying method has drawbacks such as dust being generated during construction and the spraying base material not adhering sufficiently to the surface to be constructed, and also requiring a stirring tank, which reduces the overall equipment efficiency. There were problems such as a large-scale configuration and the need for manpower for stirring.

[0004] On the other hand, “Journal of the Japanese Society of Revegetation Engineering” No. 1
6, No. 1 (1990), pages 56-59, a new dry spraying method has been developed. This new dry spraying method uses a blower 5 as shown in Figure 3.
1 is connected to a rock wool spraying machine 52, a spraying material 53 in which seeds and vegetation base material are mixed in advance (premix) is supplied by a belt conveyor 54, and this spraying material 53 is A spray machine 52 supplies water to a spray nozzle 56 via a hose 55, and a water tank 57.
After diluting the water and liquid corrosion inhibitor (not shown) supplied by the stirrer 58 with water, the water is diluted with water by the pump 59.
is fed under pressure to the spray nozzle 56 via the hose 60, and added to the spray material 53 at the tip of the spray nozzle 56 to form a spray base material 61. Furthermore, the discharge pressure of this spray base material 61 is increased. In order to increase
The spray base material 61 is sprayed onto the construction target surface 64 by adding it at the tip of the spray base material 61.

[0005]

[Problems to be Solved by the Invention] According to the above-mentioned new dry spraying method, a mixer and an operator for kneading the seeds, vegetation base material, and water are no longer necessary, and the rock wool spraying machine 52 Since it is easy to handle and lightweight, it has the advantage of being easy to transport and temporarily install.

However, even the new dry spraying method described above still has some drawbacks. it is,
Since a premix of seeds and vegetation material is used as the spray material 53, if the moisture content increases due to moisture absorption during storage, the seeds in the spray material 53 may germinate. There is an inconvenience.

[0007] In the greening method for slopes, etc.,
It is necessary to mix peat moss, bark, etc. into the vegetation material, but when using the rock wool spraying machine 52, dry peat moss and bark must be used, so a step of drying them is necessary. becomes.

[0008] Furthermore, since the number of hoses 55, 60, 63 connected to the spray nozzle 56 is large, the work surface 64
The disadvantage is that the workability (operability of the spray nozzle) is poor.

The present invention has been made with the above-mentioned considerations in mind, and its purpose is to eliminate the need for a mixer or manual labor for stirring, and to simplify the process of drying peat moss and bark. It is an object of the present invention to provide a method for spraying a sprayed base material in a greening method (hereinafter referred to as "spraying method"), which does not require spraying and can perform spraying with good workability.

0010

[Means for Solving the Problems] In order to achieve the above object, the spraying method according to the present invention supplies vegetation material to a spray nozzle whose discharge port is slightly narrowed by a blower, and Seeds and fertilizer are supplied together with water by a pump, and the mixture of seeds, fertilizer, vegetation material and water is sprayed onto the surface to be constructed.

[0011]

[Operation] According to the above spraying method, there is no need to dry peat moss or bark, and continuous spraying is possible by simply dropping the vegetation material onto the spraying machine.
There is no need to assign a worker to operate the machine, and
Since only the vegetation material supply hose and the water supply hose are connected to the spray nozzle, the spray nozzle can be easily operated and sprayed efficiently.

0012

Embodiments Hereinafter, embodiments of the present invention will be described with reference to the drawings.

FIGS. 1 and 2 show an embodiment of the present invention. In FIG. 1, 1 is a blower, which stirs the vegetation material 3 supplied by a belt conveyor 2, and blows it into a blower 4.
The structure is such that air is sent out in the direction of the spray nozzle 6 via the vegetation material supply hose 5. 7 is a mixing tank that mixes water supplied from a water tank 8 via a water hose 9 with seeds 11 and fertilizer 12 supplied by a belt conveyor 10;
3 and a water supply hose 14 in the direction of a spray nozzle 6. Reference numeral 15 indicates a slope surface as a surface to be constructed, and reference numeral 16 indicates a spray material sprayed from the tip of the spray nozzle 6.

As shown in FIG. 2, the spraying machine 1 has a material stock tank 17, a material supply reserve chamber 18, and a material supply chamber 19 that are integrally connected. A material return chamber 20 is attached to 17.

That is, the material stock tank 17
is constructed such that its upper part is open so that the vegetation material 3 can be thrown in, and a conveying member 21 consisting of a spiral shaft is rotatably installed horizontally in the lower part of the inside, and the introduced vegetation material 3 can be fed into the transport member 21. It is configured so that it can be transported in the direction of the material supply preliminary chamber 18 (direction of arrow A in the figure).

The material return chamber 20 communicates with the space in which the downstream portion of the transport member 21 is located and the material supply preliminary chamber 18 at the downstream side surface 17a of the material stock tank 17 in the transport direction. A vegetation material return member 22 for returning the vegetation material 3 in a direction opposite to the conveyance direction of the conveyance member 21 (in the direction of arrow B in the figure) is horizontally installed in a rotatable manner.

The material supply preliminary chamber 18 is provided on the downstream side of the material stock tank 17 in the transport direction so as to communicate with the material stock tank 17 and the material return chamber 20. Below the vegetation material returning member 22, a comb-shaped stirring member 23, in which the shaft of the conveying member 21 is loosely fitted, is horizontally installed so as to be freely rotatable.

The material supply chamber 19 is located below the material supply preliminary chamber 18 and has an opening (
It is provided so as to communicate with the material supply preparatory chamber 18 via a material supply preliminary chamber 18 (not shown), and inside thereof, a rotary material supply device 24 consisting of an impeller having a plurality of spaces is installed horizontally so as to be freely rotatable. The space is filled with vegetation material 3 that is dropped and supplied from the material supply preliminary chamber 18 one after another.

A blower 4 as an air blower is connected to one side of the material supply chamber 19 at a position corresponding to the lowest space among the plurality of spaces of the material supply device 24. Air supply hose 25 is connected,
Air inlet 2 for introducing air from blower 4
6 have been established. Further, on the other side of the material supply chamber 19, a material discharge port 27 for discharging the vegetation material 3 is opened at a position corresponding to the air introduction port 26, and this material discharge port 27 and the spray nozzle 6 A hose 5 for supplying vegetation material is connected between the two.

[0020] Here, the mechanism for rotating the conveying member 21, the vegetation material return member 22, the stirring member 23, and the material supply device 24 in respective predetermined directions will be briefly explained. In Fig. 2, 28 is a motor; One end of the output shaft 28a of the motor 28 is mechanically coupled to the shaft of the stirring member 23 via a transmission mechanism 29 consisting of a pulley and a belt, and the other end is connected to a transmission mechanism (not shown) consisting of a pulley and a belt. It is mechanically coupled to the shaft of the transmission 30 via.

One end of the shaft of the transmission 30 is mechanically connected to the shaft of the material supply device 24 via a transmission mechanism 31 consisting of a sprocket and a chain. Further, the shaft of this material supply device 24 is mechanically coupled to one end side of the shaft of the conveyance member 21 via another transmission mechanism 32 consisting of a sprocket and a chain. The other end of the axis of this conveyance member 21 is connected to a vegetation material return member 2 through a transmission mechanism (not shown) consisting of a sprocket and a chain.
It is mechanically connected to the other end of the shaft of No. 2.

[0022] Thus, the output shaft 28a of the motor 28
By rotating in the direction of arrow a in FIG.
The conveying member 21 in the material stock tank 17 rotates in the same direction, and the vegetation material 3 is sent toward the material supply preliminary chamber 18 . During this transportation, the vegetation material 3 is appropriately stirred. The vegetation material 3 is stirred by a stirring member 23 provided in the material supply preliminary chamber 18 and passes through an opening provided in the material supply preliminary chamber 18 to a material supply device 24 provided in the material supply chamber 19. fall into one space.

At this time, the material return member 22 in the material return chamber 20 is rotating in the opposite direction to the conveying member 21, and a part of the vegetation material 3 conveyed by the conveying member 21 is Since the material is sent in the direction of the material stock tank 17 by the rotation of the material return member 22, the amount of the vegetation material 3 falling and being supplied into one space is always kept constant.

When the space reaches a predetermined position (one side of the space faces the air inlet 26 and the other side faces the material outlet 27), the vegetation material 3 in the space is blown away by the air from the blower 4. It is blown out to the vegetation material supply hose 5,
It reaches the spray nozzle 6.

Although not shown in detail, the spray nozzle 6 has a cylindrical nozzle body 33, and a discharge port 34 on the downstream side thereof is narrowed into a flat shape (for example, an oval or rectangular shape). A vegetation material supply hose 5 is connected to the upstream end of the nozzle body 33, and a water supply hose 14 for introducing water into the nozzle body 33 is connected to a water supply hose 14 for adjusting the water amount. They are connected via a connecting member 35 equipped with a cock. The connection position of this water supply hose 14 is, for example, about 20 cm upstream of the discharge port 34.

[0026] In this way, the water supply hose 14
The reason why these are connected only several tens of cm upstream from the discharge port 34 of the spray nozzle 6 is as follows. Vegetation material 3 well in front of the discharge port 34 (for example, 1 m or more),
When the water containing seeds 11, fertilizer 12, etc. is combined, the moisture content of the spray material 16 increases, and it may adhere to the vegetation material supply hose 5, the inner wall of the spray nozzle 6, etc. This is because the spraying material 16 tends to become clogged, making it difficult to perform desired spraying.

The mixing tank 7 is open at the top and has a stirring member 37 driven by a motor 36 inside.
The internal capacity is about 3,500 to 4,000 liters, and the opening (not shown) formed on the bottom is a hose 38.
It is connected to, for example, a squeeze-type pump 13 via. In this mixing tank 7, the water supplied from the water tank 8, the seeds 11, and the fertilizer 12 are mixed, and at this time, an anti-erosion agent and a super absorbent polymer are mixed in as required.

[0028] The vegetation material 3 is peat moss, bark,
It is preferably made of pearlite fine particles, vermulite, etc., and has a water content as low as possible. And said seeds 11
is appropriately selected depending on the construction details of the construction target surface 15. Further, the fertilizer 12 is made by appropriately mixing various kinds of fast-release fertilizer, slow-release fertilizer, and slow-release fertilizer.

Table 1 shows an example of the blending ratio of the spray material 16, which is made by mixing the seeds 11, fertilizer 12, vegetation material 3, etc. with water.

[0030]

[Table 1]

[0031] The numerical values in Table 1 above indicate the blending amount per 1 m3. The spraying material 16 having such a blending ratio has the advantages of having water retention, less scattering, being easily sprayable by the spraying method according to the present invention, and being inexpensive.

When spraying, the blower 4 sends out the vegetation material 3 in the direction of the spray nozzle 6 at an air rate of 3 to 4 m3/min, and the pump 13 sends out water mixed with the seeds 11, fertilizer 12, etc. It is sent out to six directions of the spray nozzle at a rate of 17.3 l/min. In this case, the vegetation material 3 has a relatively large surface area for a vegetation material and is lightweight with a specific gravity of about 0.1 to 1.0, so it is easily supplied to the spray nozzle 6 by the wind of the blower 4.
At a position approximately 20 cm upstream of the discharge port 34 of the spray nozzle 6, the mixture becomes heavy with water, seeds 11, and fertilizer 12, and is carried by the wind of the blower 4 and sprayed from the discharge port 34 onto the construction target surface 15. However, since the discharge port 34 is formed in a flat shape and narrowed, the spraying pressure is high and the fluid is discharged vigorously.

Since the spray nozzle 6 is only connected to the vegetation material supply hose 5 and the water supply hose 14, the operation on the target surface 15 such as a slope is easy and reliable. This has the advantage that it is possible to perform spraying on a wide range of areas, and that the shock at the spray nozzle 6 is small. In addition, by operating the water volume adjustment cock provided on the spray nozzle 6, the amount of water mixed into the vegetation material 3 can be adjusted.
The spraying material 16 can be sprayed at a concentration (viscosity) depending on the state of the spraying material 5.

In addition, in the spraying machine 1, the vegetation material 3 is simply put into the material stock tank 17, and the vegetation material 3 is transferred to the conveying member 21 in the material stock tank 17.
Since the material is automatically stirred as it is transported in the direction of the material supply preliminary chamber 18, the spraying work using the spraying method according to the present invention does not require an operator to perform general control of the spraying machine 1. On the other hand, by using the mixing tank 7 with a content of about 3,500 to 4,000 liters, it is possible to continue spraying for about 3 hours without any manpower, and as a result, the vegetation base is This process can be carried out by a total of two people, one worker to supply the material 3 to the material stock tank 17 and one worker to operate the spray nozzle 6, resulting in extremely labor-saving and manpower savings.

It should be noted that the method of the present invention is not limited to the above embodiments; for example, the vegetation material 3 may be supplied using a conventional dry spraying machine or mortar gun machine, or the blower 4 may be replaced with a Alternatively, a compressor may be used.

[0036]

[Effects of the Invention] As explained above, according to the present invention,
There is no need to provide a mixer for mixing and stirring the vegetation materials or to require manual labor for stirring. Furthermore, since a premix of seeds and vegetation material is not used, there is no need to worry about germination. Further, there is no need for a drying process for peat moss or bark. Furthermore, since spraying can be performed with good workability, the efficiency of spraying work is improved. Moreover, since the number of workers can be reduced, labor and manpower saving can be promoted.

[Brief explanation of the drawing]

FIG. 1 is a diagram showing the implementation state of the method of the present invention.

FIG. 2 is a perspective view showing various parts of an apparatus for carrying out the method.

FIG. 3 is a diagram for explaining a conventional method.

[Explanation of symbols]

3... Vegetation material, 4... Blower, 6... Spraying nozzle, 11...
Seed, 12... Fertilizer, 13... Pump, 15... Construction target surface,
34...Discharge port.

Claims (1)

[Claims] Claim 1: While the vegetation material is supplied by a blower to a spray nozzle whose discharge port is slightly constricted, seeds and fertilizers are supplied together with water to the spray nozzle by a pump, and the seeds, fertilizers, and vegetation are A method for spraying a spray base material in a greening construction method, characterized in that a mixture of materials and water is sprayed onto a surface to be constructed.