JPH0788666B2 - 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 for spraying a spray base material, which is a mixture of seeds and vegetation materials, on the slope in order to green the slope.

[0002]

2. Description of the Related Art Recently, thick-layer organic soil spraying methods are rapidly increasing in greening methods such as slopes.
In this case, as a method of spraying the spray base material on the slope,
There were the following two methods of wet spraying. That is, seeds, vegetation 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 a discharge port of the spray nozzle. Method of spraying organic soil with a squeeze type pump to spray the target surface with a squeeze, and a thick layer with a mortar sprayer that sprays the spray base material onto the target surface by the air pressure of the compressor. It is a method of spraying the soil.

In contrast to such a wet spraying method, seeds and vegetation material kneaded by a mixer are used as a spraying base material, which is sent to a spraying nozzle by air, and water is discharged at the discharge port of this spraying nozzle. There was a so-called dry spraying method of spraying and spraying on the target surface such as slope.
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. In addition, since the spraying work is performed in a state where the spraying base material is fully clogged in the hose, it is heavy and poor in workability, and it is extremely inefficient.

Further, in the mortar spraying machine, as shown in FIG. 3, for example, the mortar spraying machine 51 itself has a large weight, and the construction of the entire apparatus becomes large, and manpower for stirring is required. There was such a problem. In FIG. 3, reference numeral 52 is a compressor, 53 is a vegetation material, 54 is a weighing machine, 55 is a belt conveyor, 56 is a pump for pumping, 57 is a water meter, and 58 is a generator.

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

In this new dry spraying method, as shown in FIG. 4, seeds and vegetation materials are premixed with a rock wool spraying machine 62 to which a blower 61 is connected (premix).
The sprayed material 63 is supplied by a belt conveyor 64,
This spray material 63 is supplied to the spray nozzle 66 by the rock wool spraying machine 62 through the hose 65, and the water supplied from the water tank 67 and the liquid erosion inhibitor (not shown) are stirred by the agitator 68.
After being diluted with water in the above, it is pumped by the pump 69 to the spray nozzle 66 via the hose 70, and is added to the spray material 63 at the tip of the spray nozzle 66 to form the spray base material 71. In order to increase the discharge pressure of the spray base material 71, the air from the compressor 72 is added at the tip of the spray nozzle 66 via the air hose 73, and the spray base material 71 is sprayed onto the construction target surface 74. I attached it.

[0008]

According to the above new dry spraying method, a mixer for kneading seed, vegetation material and water is not required, and the rock wool spraying machine 62 is not required. Since it is easy to handle and lightweight, it has advantages such as easy transportation and temporary installation.

However, the above new dry spraying method still has some drawbacks. It is necessary to mix peat moss and bark with the vegetation material in the greening method such as slope, but when using the rock wool spraying machine 62, peat moss and bark must be dry Therefore, a step of drying these is required.

A hose connected to the spray nozzle 66
Since there are a large number of 65, 70, 73, there is a drawback that the workability (operability of the spray nozzle) on the construction target surface 74 is poor.

The present invention has been made in consideration of the above-mentioned matters, and it is an object of the present invention to provide a mixer or a manual labor for stirring, and to dry peat moss or bark. It is an object of the present invention to provide a method of spraying a spraying base material (hereinafter, referred to as a spraying method) in a greening method, which does not require the above and can be sprayed with good workability.

[0012]

In order to achieve the above object, the spraying method according to the present invention is such that the upper part is opened and the inside is agitated.
Material agitation tank with agitation / conveyance member, and substrate return inside
A stirring member, and is provided on the side of the stirring / conveying member in the conveying direction.
A base material container provided so as to communicate with the material stirring tank.
The turn chamber and the downstream side of the material stirring tank in the conveying direction and
Provided below the material return chamber and in communication therewith
Substrate supply preparatory chamber and this
Spraying consisting of a base material supply chamber provided so as to communicate with each other
Machine mix seeds with vegetation material to form spray base
And connect this spray base material to one end of the base material supply chamber.
Supplies to spray nozzle discharge opening is slightly narrowed by Eya from the compressor which is, water is supplied to this spray nozzle, the spray base of the water at the upstream side of the discharge port The feature is that the spray base material is sprayed together with water onto the surface to be constructed.
There is.

[0013]

According to the above spraying method, it is not necessary to dry peat moss and bark, and continuous spraying can be performed only by dropping the vegetation material on the spraying machine.
There is no need to place a worker to operate the machine,
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 the spray can be efficiently performed. So
Then, the spraying machine has a material stirring tank and a base material litter.
It has a special chamber, a substrate supply standby chamber, and a substrate supply chamber.
In addition, the stirring / conveying member in the material stirring tank is rotated in the conveying direction.
Substrate return chamber while rolling and transporting sprayed substrate
The member for returning the base material in the
By rotating, it is conveyed by the stirring / conveying member.
A part of the sprayed base material comes from the base material return member.
The material is fed to the material agitation tank, which causes the substrate supply chamber
The amount of sprayed base material that is dropped and supplied to the
Be done.

[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 mounted on a dolly (not shown) (its structure will be described later), and 2 is a spraying machine. For spraying the spraying base material 3 onto the construction target surface 5 such as a slope, which is connected to the spraying machine 1 through the base material supply hose 4 for supplying the base material 3 (the composition of which will be described later). No. 6, a compressor for supplying the spraying machine 1 with air of a predetermined pressure for sending the spraying base material 3 toward the spraying nozzle 2, 7 is a water tank, 8 is a water pump, and 9 is a water pump. Water supply hose for supplying the water delivered by the spray nozzle 2 to the spray nozzle 2, 10 sprays the vegetation material 11
It is a conveyor for supplying to.

As shown in FIG. 2, the spraying machine 1 comprises a material stirring tank 12, a base material supply preliminary chamber 13 and a base material supply chamber 14 which are integrally connected to each other. Substrate return chamber 15 is attached to 12.

That is, the material agitation tank 12 is constructed such that the upper part thereof is opened so that seeds, fertilizers and the like (not shown) and the vegetation material 11 can be introduced, and a spiral shaft is provided below the inside thereof. An agitating / conveying member 16 is rotatably provided laterally, and the seeds, fertilizers, etc. that have been introduced and the vegetation material 11 are appropriately agitated to form a spray base material 3, which is a base material supply preparatory chamber.
It is configured so that it can be transported in 13 directions (direction of arrow A in the figure).

The base material return chamber 15 has a side surface 1 downstream of the material agitation tank 12 in the conveying direction.
In 2a, the agitating / transporting member 16 is projected so as to communicate with the space in which the downstream side portion is located and the base material supply preliminary chamber 13, and inside the agitating / transporting member 16 in a direction opposite to the transporting direction (Fig. A base material returning member 17 for returning the spray base material 3 in the direction of arrow B) is rotatably provided laterally.

The base material supply preparatory chamber 13 is provided on the side surface of the material agitation tank 12 on the downstream side in the conveying direction so as to communicate with the material agitation tank 12 and the base material return chamber 15, and inside thereof. Below the base material return member 17, a comb-teeth-shaped agitating member 18 in which the shaft of the agitating / conveying member 16 is loosely fitted inside is rotatably provided.

The base material supply chamber 14 is the base material supply preparatory chamber.
An opening located below 13 and configured to open and close (not shown)
It is provided so as to communicate with the base material supply preliminary chamber 13 via, inside of which a rotary type base material supply device 19 composed of an impeller having a plurality of spaces is rotatably provided horizontally, and The space is filled with the sprayed base material 3 dropped and supplied from the base material supply preparatory chamber 13 one after another.

On one side surface of the base material supply chamber 14, an air connected to the compressor 6 is provided at a position corresponding to the lowest space of the plurality of spaces of the base material supply device 19. The supply hose 20 is connected, and an air introduction port 21 for introducing an air of a predetermined pressure from the compressor 6 is opened. Further, on the other side surface of the base material supply chamber 14, a base material discharge port 22 for discharging the spray base material 3 is provided at a position corresponding to the air introduction port 21, and the base material discharge port 22 is provided. A base material supply hose 4 is connected between the spray nozzle 2 and the spray nozzle 2.

The mechanism for rotating the agitating / conveying member 16, the base material returning member 17, the agitating member 18, and the base material supplying device 19 in predetermined directions will be briefly described below.
In the above, 23 is a motor, one end side of the output shaft 23a of the motor 23 is mechanically coupled to the shaft of the stirring member 18 via a transmission mechanism 24 including a pulley and a belt, and the other end side thereof is
It is mechanically coupled to the shaft of the transmission 25 via a transmission mechanism (not shown) including a pulley and a belt.

One end of the shaft of the transmission 25 is mechanically connected to the shaft of the base material supply device 19 via a transmission mechanism 26 composed of a sprocket and a chain. The shaft of the base material supply device 19 is mechanically coupled to one end of the shaft of the stirring / conveying member 16 via another transmission mechanism 27 including a sprocket and a chain. The other end of the shaft of the stirring / conveying member 16 is mechanically coupled to the other end of the shaft of the base material returning member 17 via a transmission mechanism (not shown) including a sprocket and a chain.

By rotating the output shaft 23a of the motor 23 in the direction of arrow a in FIG. 2, the stirring / conveying member 16 in the material stirring tank 12 rotates in the same direction, and seeds, fertilizer, The sprayed base material 3 made of the vegetation material 11 or the like is sent to the base material supply preliminary chamber 13 while being stirred. And
The sprayed base material 3 is agitated by an agitating member 18 provided in the base material supply preliminary chamber 13 and passes through an opening provided in the base material supply auxiliary chamber 13 to be provided with a base material provided in the base material supply chamber 14. It falls into one space of the material supply device 19.

At this time, the base material returning member 17 in the base material return chamber 15 is rotating in the opposite direction to the stirring / conveying member 16, and the spraying base conveyed by the stirring / conveying member 16 is blown. A part of the material 3 is sent to the material agitation tank 12 by the base material returning member 17, so that the amount of the sprayed base material 3 dropped / supplied into one space is always kept constant.

When the space comes to a predetermined position (one of the spaces faces the air introduction port 21 and the other faces the material discharge port 22), the air from the compressor 6 causes
The spray base material 3 in the space is blown out to the base material supply hose 4 and reaches the spray nozzle 2.

Although not shown in detail, the spray nozzle 2 has a nozzle main body 28 having a cylindrical shape, and a discharge port 29 on the downstream side thereof is narrowed to a flat shape (for example, an oval shape or a rectangular shape). It is formed in a shape, the base material supply hose 4 is connected to the upstream end of the nozzle body 29, and the nozzle body is
A water supply hose 9 for introducing water into 28 is connected via a connecting member 30 equipped with a cock for adjusting the amount of water.
The connection position of this water supply hose 9 is, for example, 20 from the discharge port 29.
About upstream side of cm.

The reason why the water supply hose 9 is connected on the upstream side of the discharge port 29 of the spray nozzle 2 by only a few tens of centimeters is as follows. When the spray base material 3 and the water are brought together substantially before the discharge port 29 (for example, 1 m or more), the water content of the spray base material 3 increases, and the base material supply hose 4 and the inner wall of the spray nozzle 2 and the like. This is because the spraying base material 3 is likely to adhere to the base material and the spraying base material 3 is likely to be clogged in the spraying nozzle 2, making it difficult to perform desired spraying.

The vegetation material 11 includes peat moss, bark,
Fertilizer with appropriate mixture of soil-improving material for enhancing water retention and fertilizing ability, which is made by appropriately mixing perlite fine granules, berumlite, super absorbent polymer, and various types of fast-acting fertilizer, slow-acting fertilizer, slow-acting fertilizer And is packed in a bag.

Next, the spraying method according to the present invention will be described. The vegetation material 11 is taken out of the bag and put into the material agitation tank 12 by the conveyor 10, and the contents of restoration of the construction target surface 5 (construction content). The desired spraying base material 3 is obtained by introducing the seeds selected according to the above and the powdery erosion inhibitor as the paste material into the material stirring tank 12.

Table 1 shows an example of the blending ratio of the spray base material 3. In Table 1, the numerical values show the compounding amount per 1 m ³ .

[0032]

[Table 1]

The spraying base material 3 having such a blending ratio has the advantages that it has a water-retaining property, little scattering, can be easily sprayed by the spraying method according to the present invention, and is inexpensive. There is.

When spraying, the vegetation material 3
At a pressure of about 7 Kg / cm ² at a rate of 3.6 to 5.0 m ³ / min in the direction of the spray nozzle 2 by the compressor 6, and at the same time water is pumped by the water pump 8 at a rate of 16 l / min. Send in the direction. In this case, since the surface area of the blowing base material 3 is relatively large as the blowing base material 3 and the specific gravity is as light as about 0.1 to 1.0, the blowing base material 3 is easily supplied to the blowing nozzle 2 by the wind of the compressor 6, At a position about 20 cm upstream of the discharge port 29 of the spray nozzle 2, it becomes heavy by being combined with water, and is sprayed from the discharge port 29 onto the construction target surface 5 so as to be placed on the wind of the compressor 6. Since is formed into a flat shape and is narrowed down, the spraying pressure is increased and the ink is ejected vigorously.

Since only the base material supply hose 4 and the water supply hose 9 are connected to the spray nozzle 2, the operation on the construction surface 5 such as the slope is easy and reliable. Can be sprayed. Further, since the amount of water mixed into the spray base material 3 can be adjusted by operating the cock for adjusting the amount of water provided in the spray nozzle 2, the concentration according to the state of the construction target surface 5 ( The viscosity of the spray base material 3 can be sprayed.

In the spraying machine 1, the spraying machine 1
In the above, since the vegetation material 11, the seeds, the fertilizer, and the erosion inhibitor (which is mixed if necessary) are automatically mixed and stirred in the material stirring tank 12, the spraying operation by the spraying method according to the present invention No need for an operator who controls the spraying machine 1 in general, and one operator for supplying the material agitation tank 12 with the vegetation material 11 and the operation for operating the spray nozzle 2. It can be performed by a total of two people, one person, which is extremely labor-saving and labor-saving.

In the spraying method described in the above-mentioned "Journal of Japanese Greenery Engineering", a blower and a compressor are used together to convey the spraying base material to the spraying nozzle by the blower. Although the structure of the entire apparatus is large, there is a drawback that the conveying force of the spraying base material is small, but in the method of the present invention, the spraying base material 3 reaches the spray nozzle 2 only by the wind pressure of the compressor 6. Since it is sent by pressure, the structure of the entire device is simple, and since the wind pressure of the compressor 6 is large, even when fertilizer, sand, soil improver having a large specific gravity is mixed in the spray base material 3, The spray base material 3 can be pressure-fed to the spray nozzle 2, and the spray base material 3 can be vigorously sprayed onto the construction target surface 5. Further, when the rotary type substrate supply device 19 is used as in the above embodiment, it is not necessary to increase the pressure in the spraying machine 1, so that it is not necessary to use a compressor of such a large size. .

Further, the base material required for carrying out the spraying method according to the present invention is the sprayer 1, the spray nozzle 2, the compressor 6, the water tank 7, the water pump 8 and the like. Therefore, it is possible to easily transport and temporarily install these equipment.

The method of the present invention is not limited to the above embodiment, and for example, the spray base material 3 may be supplied by a conventional dry spray machine or mortar gun machine.
Further, a premix of seed and vegetation material may be supplied to the spraying machine 1, and in this case, peat moss, bark, fine particles of perlite, bermlite and the like may be premixed with the seed.

[0040]

As described above, according to the method of the present invention,
Is not necessary to dry peat moss and bark.
, Just by dropping the vegetation material against the spraying machine
Since spraying is possible, workers who operate the machine are arranged.
In addition, the spray nozzle does not need to be supplied with vegetation material.
Only the supply hose and the water supply hose are connected
Because it is easy to operate the spray nozzle, spraying is efficient
Can be done well. Then, the spraying machine stirs the material.
Tank, substrate return chamber, substrate supply reserve chamber, substrate
It consists of a supply chamber, especially for the material stirring tank and the substrate.
A base material return chamber is provided so as to communicate with the preliminary supply chamber.
Falling from the material agitation tank to the base material supply chamber
The amount of sprayed substrate supplied is always kept constant.
Therefore, always spray a fixed amount of spray base material efficiently.
You can kick. Thus , according to the method of the present invention,
The spraying base material can be sprayed efficiently, the number of equipment required for spraying work is small, and the entire device can be configured compactly, so that transportation and temporary installation are easy,
Moreover, since the number of workers is small, labor saving and labor saving can be promoted.

[Brief description of drawings]

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

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

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

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

[Explanation of Codes] 1 ... Spraying machine, 2 ... Spraying nozzle, 3 ... Spraying base material, 5
… Construction surface, 6… Compressor, 11… Vegetation material,
12 ... Material stirring tank, 13 ... Substrate supply preliminary chamber, 14 ...
Substrate supply chamber, 15 ... Substrate return chamber, 16 ... Agitation / conveyance
Member, 17 ... Base material returning member, 29 ... Discharge port.

Claims (1)

[Claims] 1. An upper part is opened and a stirring / conveying member is provided inside.
The material agitation tank and the base material return member inside
The material stirring tank is provided on the side of the stirring / conveying member in the conveying direction.
A base material return chamber provided so as to communicate with the
Downstream of the material stirring tank in the conveying direction and the material return
Substrate supply preparatory chamber provided below the chamber and in communication therewith
And so that it communicates with this below the base material supply chamber.
Seed by a spraying machine consisting of a base material supply chamber provided
And the vegetation material are mixed to form a spray base material, and the spray base material is slightly narrowed down by the air from the compressor connected to one end of the base material supply chamber. And spraying water to the spraying nozzle, mix the water into the spraying base material on the upstream side of the discharge port, and apply the spraying base material with water. A method for spraying a spraying base material in a greening method, characterized in that the spraying is performed on a surface.