JPH0823145B2 - Spraying method of spraying base material in greening method - Google Patents

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 spraying base material in a greening method.

[0002]

2. Description of the Related Art Recently, for example, in the greening method for slopes, the thick layer soil spraying method is rapidly increasing. In this case, as a method for spraying a spraying base material on the slope, There were the following two methods of wet spraying. That is, seeds, vegetation base material, and water are kneaded in a tank to form a spray base material, which is sent to a spray nozzle by a pump, and the spray base material is blown by an air from a compressor at an outlet of the spray nozzle. A method of spraying organic soil with a squeeze pump that scatters and sprays on the surface to be constructed,
The method is a method for spraying a thick layer of soil with a mortar spraying machine, in which the spraying base material is sprayed onto a construction target surface by an air pressure of a compressor.

In contrast to such a wet spraying method, the seed and the vegetation base material kneaded by a mixer are sent as a spray base material to a spray nozzle by an air pressure of a compressor,
There was a so-called dry spraying method in which water was sprayed at the discharge port of the spraying nozzle and sprayed on the surface to be constructed,
There are drawbacks such that dust is generated during construction and the spray base material is not sufficiently adhered to the surface to be constructed. Therefore, the wet spray method has been mainly used in the past.

However, among the above-mentioned wet spraying methods, the method using a squeeze type pump is not possible to spray continuously because the tank is emptied once and the spraying base material is kneaded and sprayed. It was extremely inefficient.

Further, in the mortar spraying machine, as shown in FIG. 3, for example, the mortar spraying machine 31 itself is a large and bulky machine, and in addition, a high pressure air is required. So compressor 3
Therefore, there is a problem that the device becomes large in size, such as requiring 2 and the machine operation by an expert is always required. In FIG. 3, 33 is a vegetation base material, 34 is a weighing machine, 35 is a belt conveyor, 36 is a pump for pumping, 37 is a water meter, and 38 is a generator.

Therefore, as a solution to the drawbacks of the above-mentioned wet spraying method and dry spraying method, a new one as shown in "Journal of Japan Greenery Engineering" No. 16 (1) (1990) pp. 56-59. A dry spray method has been developed.

As shown in FIG. 4, this new dry spraying method uses a rock wool spraying machine 42 to which a blower 41 is connected.
On the other hand, a so-called premixed spray base material 43 in which seeds and vegetation base materials are premixed is used as a belt conveyor 44.
And the spray base material 43 is supplied by the rock wool spraying machine 4
2 is supplied to the spray nozzle 45 by 2 and the water and the liquid erosion inhibitor (not shown) supplied from the water tank 46 are diluted with water in the stirrer 47, and then this is pumped to the spray nozzle 45. It is pressure-fed and added to the spray base material 43 at the tip of the spray nozzle 45. Further, in order to increase the discharge pressure of the spray base material 43, air from the compressor 49 is added at the tip of the spray nozzle 45. The spray base material 43 is sprayed onto the construction target surface 50 together with the liquid erosion inhibitor. Reference numerals 51, 52 and 53 are hoses for supplying the spray base material 43, the solution type erosion inhibitor and the air to the spray nozzle 45, respectively.

[0008]

In the above new dry spraying method, a mixer for kneading the seed, the vegetation base material and water is not required, and the rock wool spraying machine 32 is handled. It is simple and lightweight, and has the advantage that it can be easily transported and temporarily installed.

However, the above new dry spraying method still has some drawbacks. that is,
Since the spray base material 43 is scattered by the air at the tip of the spray nozzle 45, a compressor 49 for air supply is required, and after a liquid erosion inhibitor (not shown) is added to water to dilute it. Since this is pumped to the spray nozzle 45 by the pump 48 and added to the spray base material 43 at the tip of the spray nozzle 45, a stirrer 47 for stirring the liquid erosion inhibitor and water is required. Besides, although the whole hose 51, 52, 53 for supplying the spraying base material 43 and the like to the spraying nozzle 45 is also required, the entire apparatus is more compact than the conventional wet spraying method. Since the compressor 49 and the agitator 47 are used, they are large and expensive, and the spray nozzle 45
Since there are a large number of hoses connected to each other, there is a drawback in that workability on the slope or the like (operability of the spray nozzle 45) is poor.

In the above method, the premixed spray base material 43 is used. However, when the moisture content increases due to moisture absorption during storage, the spray base material 4 is used.
There is also the disadvantage that the seeds in 3 will germinate.

The present invention has been made in consideration of the above matters, and an object of the present invention is to provide a greening method capable of efficiently spraying a spraying base material with a more compact and inexpensive structure. A spraying method of a spraying base material (hereinafter referred to as a spraying method) is provided.

[0012]

In order to achieve the above object, a spraying method according to the present invention is a lightweight spraying base having a specific gravity of 0.1 to 1.0 formed by mixing seed and vegetation material. The material is supplied to the spray nozzle whose discharge port is slightly narrowed by the blower, and water is supplied to this spray nozzle to mix this water into the spray base material on the upstream side of the discharge port. , The spraying base material is sprayed together with water onto the surface to be constructed.

[0013]

According to the above-mentioned spraying method, since the compressor and the agitator are not required, the entire apparatus becomes compact, and the spraying machine only drops the material, and the switching operation is not required, and the continuous spraying is performed. Therefore, it is not necessary to arrange a worker who operates the machine, and only the hose for supplying the spray base material and the hose for supplying the water are connected to the spray nozzle. It is easy to operate the spray nozzle, and spraying can be performed efficiently.

[0014]

Embodiments of the present invention will be described below with reference to the drawings.

1 and 2 show an embodiment of the present invention. In FIG. 1, 1 is a spraying machine such as a rock wool spraying machine, which is mounted on a dolly (not shown). Is the spray base material 3
It is connected to the spraying machine 1 through a base material supply hose (for example, an inner diameter of 6.5 cm) 4 for supplying (the composition thereof will be described later), and the spraying base material 3 is a surface to be constructed 5 such as a slope.
Nozzle for spraying on, 6 is a water tank, 7 is a water pump, 8 is a water supply hose for supplying the water delivered by the water pump 7 to the spray nozzle 2, and 9 is a vegetation material 10. It is a conveyor for carrying to the machine 1.

As shown in FIG. 2, the spraying machine 1 has an agitation tank 11 provided at an upper portion, an agitation tank 11 having an upper opening, a base stock portion 12 located below the agitation tank 11, and the base stock portion. The blower 13 is provided at the rear of 12, and these are integrally configured.

The stirring tank 11 is internally rotated by a motor (not shown) so that the seed and the vegetation material 10 introduced through the opening can be appropriately mixed and stirred to form a predetermined spray base material 3. A driven stirring member 14 is provided,
A stock tank 15 having the same capacity as that of the stirring unit 11 is provided in the base material stock unit 12, and a material feeding unit 18 including a spiral shaft 16 rotatably driven by a motor (not shown) and an impeller 17 having a plurality of blades. Is provided.

The sprayed base material dropped from the stirring tank reaches the spiral shaft 16 through the stock tank 15, and the spiral shaft 16 continuously sends the sprayed base material to a portion partitioned by blades, and then the blower 13 It is blown out and supplied by the wind.

As shown in FIG. 2, the spray nozzle 2 has a shape in which the nozzle body 19 is cylindrical and the discharge port 20 on the downstream side is narrowed (for example, oval or rectangular). The base material supply hose 4 is connected to the upstream end of the nozzle body 19 via a connection member (not shown), and the water supply hose 8 for introducing water into the nozzle body 19 is formed. Are connected via a connecting member 21.
The connection position of the water supply hose 8 is, for example, about 20 cm upstream from the discharge port 20. Reference numeral 22 is a cock for adjusting the amount of water.

The vegetation material 10 is made of peat moss, bark,
Fertilizer with a mixture of various types of fast-acting fertilizer, slow-acting fertilizer, and slow-acting fertilizer, and a soil conditioner for strengthening the water-retaining ability and fertilizing ability, which are obtained by appropriately mixing fine particles of perlite, berumlite, superabsorbent polymer And is packed in a bag.

Next, the spraying method according to the present invention will be described. The above-mentioned vegetation material 10 is taken out of the bag and put into the stirring tank 11 by the conveyor 9 and the restoration content (construction content) of the surface 5 to be constructed. The seeds selected accordingly are put into the stirring tank 11, and these are sufficiently stirred and mixed to obtain a predetermined lightweight spray base material 3.

An example of the blending ratio of the lightweight spray base material 3 is shown below. The numerical value is the compounding amount per 1 m ³ .

[0023]

[Table 1]

The spray base material 3 having such a blending ratio has water retention, is free from scattering, and is lightweight, and therefore has the advantage that it can be easily sprayed by the spraying method according to the present invention. It also has the advantage of being inexpensive.

When spraying, the spray base material 3 is used.
Is sent to the spray nozzle 2 direction by the blower 13 at an air amount of ³ to 4 m ³ / min, and water is sent to the spray nozzle 2 direction by the water pump 7 at a rate of 161 / min. In this case, the surface area of the blowing base material 3 is relatively large as a blowing base material, and the specific gravity is as light as about 0.1 to 1.0. It is supplied and becomes heavy by being combined with water at a position of about 20 cm upstream of the discharge port 20 of the spray nozzle 2,
Although it is blown onto the construction target surface 5 from the discharge port 20 so as to be placed on the wind of the blower 13, the discharge port 20 is formed in a flat shape and is narrowed down, so that the spray pressure becomes high and the discharge is performed vigorously.

Since only the hose 4 for supplying the base material and the hose 8 for supplying the water are connected to the spray nozzle 2, the operation on the construction surface 5 such as the slope is easy. There is an advantage that the spray can be surely performed and a shock in the spray nozzle 2 is small. Further, by operating the water amount adjusting cock 22 provided in the spray nozzle 2, the amount of water mixed into the spray base material 3 can be adjusted, so that the surface to be constructed 5
The spray base material 3 having a concentration (viscosity) according to the state can be sprayed.

In the spraying machine 1, the vegetation substrate 1
Since 0 and seeds are automatically mixed and stirred in the stirring tank 11, the spraying work by the spraying method according to the present invention is
No operator is required to perform general control of the spraying machine 1, and because of the lightweight vegetation base material, there is only one operator for supplying the vegetation base material 10 and the like to the stirring tank 11. It can be performed by a total of two people, one person and one operator who operates the spray nozzle 2, which is extremely labor-saving and labor-saving.

Further, the equipment required for carrying out the spraying method according to the present invention is not only the spraying machine 1 and the spraying nozzle 2, but also the water tank 6, the water pump 7 and the like. As described above, since a compressor or the like is not required, it is possible to easily transport and temporarily install the equipment for its implementation, and in particular, as in the embodiment, the spray tank 1 is used as the agitation tank 11, the base stock portion 12, If the blower 13 is integrated, the size will be further reduced.

[0029]

As described above, according to the method of the present invention, the spraying base material can be sprayed efficiently, the number of equipment required for the spraying work is small, and the entire apparatus can be constructed compactly. It is easy to carry, temporarily install, etc., and because it uses a lightweight vegetation base material, its handling
The number of workers can be reduced because it is easy, and labor and labor can be promoted.

[0030]

[Brief description of drawings]

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

FIG. 2 is an enlarged view showing each part of the apparatus.

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

FIG. 4 is a diagram for explaining a conventional method.

[Explanation of symbols]

 2 ... Spray nozzle 3 ... Spray base material 5 ... Construction target surface 10 ... Vegetation material 13 ... Blower 20 ... Discharge port

Claims (1)

[Claims] 1. The specific gravity obtained by mixing seed and vegetation material is
A lightweight spray base material of 0.1 to 1.0 is supplied to a spray nozzle whose discharge port is slightly narrowed by a blower, and water is supplied to the spray nozzle to discharge the water. A method for spraying a spray base material in a greening method, characterized in that the spray base material is mixed with the spray base material on the upstream side of the outlet, and the spray base material is sprayed together with water onto a construction target surface.