JPH0678632B2 - 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 One of the methods for spraying the above-mentioned spray substrate is
There is a dry spray method. In the conventional dry spraying method, the seeds and vegetation material kneaded with a mixer are sent to a spraying nozzle by an air pressure of a compressor as a spraying base material, and water is sprayed at a discharge port of the spraying nozzle, It was designed to be sprayed on the construction surface such as slopes.

However, according to this dry spraying method, there are drawbacks such as dust being generated at the time of construction, the spraying base material is not sufficiently adhered to the surface to be constructed, and the agitation tank is required. However, there is a problem in that the structure of (1) becomes large-scale, and that labor is required for stirring.

On the other hand, "Journal of Japan Greenery Engineering", No. 16
No. 1 (1990), pages 56 to 59, a new dry spraying method has been developed. In this new dry spraying method, as shown in FIG. 3, a spray material 53 in which seeds and vegetation base materials are premixed (premixed) with respect to a rock wool spraying machine 52 to which a blower 51 is connected. Is supplied by a belt conveyor 54, the spraying material 53 is supplied by a rock wool spraying machine 52 to a spraying nozzle 56 via a hose 55, and the water supplied from a water tank 57 and a liquid erosion inhibitor ( (Not shown) is diluted with water in a stirrer 58, and then is pumped by a pump 59 through a hose 60 to a spray nozzle 56, and is added to the spray material 53 at the tip of the spray nozzle 56 and sprayed. As a base material 61 to be attached, a compressor 62 is used to increase the discharge pressure of the base material 61.
Air from the spray nozzle 56 via the air hose 63
The spraying base material 61 is sprayed onto the construction target surface 64 by adding it at the tip of.

[0005]

According to 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 52 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. that is,
Since the pre-mixed seeds and vegetation material is used as the spraying material 53, if the moisture content increases due to moisture absorption during storage, the seeds in the spraying material 53 will germinate. There is inconvenience.

In the greening method for slopes, etc.,
Although it is necessary to mix peat moss and bark into the vegetation material, when the rock wool spraying machine 52 is used, peat moss and bark must be dried, so a step of drying them is necessary. Becomes

A hose connected to the spray nozzle 56
Since there are a large number of 55, 60, and 63, there is a drawback that workability (operability of the spray nozzle) on the construction target surface 64 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 manpower 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.

[0010]

In order to achieve the above object, the spraying method according to the present invention supplies a vegetation material to a spraying nozzle whose discharge port is slightly narrowed by a blower, while On the other hand, seeds and fertilizer are supplied together with water by a pump, and the mixture of the seeds, fertilizer, vegetation material and water is sprayed onto the construction target surface.

[0011]

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 spray can be efficiently performed.

[0012]

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, and a belt conveyor 2
The vegetation material 3 supplied by the agitator is agitated, and is sent from the blower 4 toward the spray nozzle 6 via the vegetation material supply hose 5. A mixing tank 7 mixes water supplied from the water tank 8 via a water hose 9 with seeds 11 and fertilizer 12 supplied by a belt conveyor 10, and these are mixed via a pump 13 and a water supply hose 14. The spray nozzle 6 is configured to deliver the spray nozzle 6 in the direction. Reference numeral 15 is a slope as a construction target surface, and 16 is a spray material sprayed from the tip of the spray nozzle 6.

As shown in FIG. 2, the spraying machine 1 includes a material stock tank 17, a material supply preliminary chamber 18, and a material supply chamber.
The material stock tank 17 is provided with a material return chamber 20.

That is, the material stock tank 17
Is configured such that the upper part thereof is opened so that the vegetation material 3 can be input, and a conveying member 21 composed of a spiral shaft is rotatably provided below the inside of the vegetation material 3 so that the input vegetation material 3 can be inserted. It is configured so that it can be conveyed in the material supply preliminary chamber 18 direction (direction of arrow A in the figure).

The material return chamber 20 has a side surface on the downstream side of the material stock tank 17 in the conveying direction.
In 17a, a projecting portion is provided so as to communicate with the space where the downstream side portion of the transport member 21 is located and the material supply preliminary chamber 18, and inside, a direction opposite to the transport direction of the transport member 21 (direction of arrow B in the figure). ). A vegetation material returning member 22 for returning the vegetation material 3 to the above) is rotatably provided laterally.

The material supply reserve chamber 18 is provided so as to communicate with the material stock tank 17 and the material return chamber 20 on the side surface of the material stock tank 17 on the downstream side in the conveying direction, and inside thereof. , Vegetation material return member
A comb-tooth-shaped stirring member 23, which is formed by loosely fitting the shaft of the conveying member 21 therein, is rotatably provided below 22.

The material supply chamber 19 is located below the material supply preliminary chamber 18 and is provided so as to communicate with the material supply preliminary chamber 18 through an opening (not shown) which is openable and closable. The rotary material supply device 24, which is composed of an impeller having a plurality of spaces, is rotatably provided inside thereof.
The space is filled with the vegetation material 3 dropped and supplied from the preliminary material supply chamber 18 one after another.

Then, one side surface of the material supply chamber 19 is connected to a blower 4 as a blower at a position corresponding to the lowest space of the plurality of spaces of the material supply device 24. An air supply hose 25 is connected, and an air introduction port 26 for introducing air from the blower 4 is opened. Further, a material discharge port 27 for discharging the vegetation material 3 is provided on the other side surface of the material supply chamber 19 at a position corresponding to the air introduction port 26.
The vegetation material supply hose 5 is connected between the spray nozzle 6 and the spray nozzle 6.

The mechanism for rotating the conveying member 21, the vegetation material returning member 22, the stirring member 23, and the material supply device 24 in predetermined directions will be briefly described below. In FIG. 2, 28 is a motor. One end side 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 including a pulley and a belt, and the other end side is a transmission mechanism including a pulley and a belt (not shown). 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 composed of a sprocket and a chain. The shaft of the material supply device 24 is mechanically connected to one end side of the shaft of the conveying member 21 via another transmission mechanism 32 including a sprocket and a chain. The other end of the shaft of the transport member 21 is mechanically connected to the other end of the shaft of the vegetation material returning member 22 via a transmission mechanism (not shown) including a sprocket and a chain.

Then, by rotating the output shaft 28a of the motor 28 in the direction of arrow a in FIG. 2, the conveying member 21 in the material stock tank 17 rotates in the same direction, and the vegetation material 3 becomes the material. It is sent to the supply reserve chamber 18 direction. During this transportation, the vegetation material 3 is appropriately stirred. Then, the vegetation material 3 is agitating member 23 provided in the material supply preliminary chamber 18.
The material supply device provided in the material supply chamber 19 through the opening formed in the material supply preliminary chamber 18 while being stirred by
Fall into one of the 24 spaces.

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

When the space comes to a predetermined position (one of the spaces faces the air introducing port 26 and the other faces the material discharging port 27), the air from the blower 4 causes the vegetation material 3 in the space to move. It is blown out to the vegetation material supply hose 5 and reaches the spray nozzle 6.

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

The reason why the water supply hose 14 is connected on the upstream side of the discharge port 34 of the spray nozzle 6 by only several tens of centimeters is as follows. When the vegetation material 3 and the water containing the seed 11, the fertilizer 12, etc. are combined well before the discharge port 34 (for example, 1 m or more), the water content of the spray material 16 increases, and the vegetation material supply hose 5 or This is because the spray material 16 is likely to adhere to the inner wall of the spray nozzle 6 or the spray material 16 is easily clogged in the spray nozzle 6, making it difficult to perform a desired spray.

The mixing tank 7 has an opening at the top and an agitation member 37 which is driven by a motor 36 inside. The internal volume of the mixing tank 7 is about 3500 to 4000 l, and an opening formed on the bottom surface (see FIG. The outer side) is connected to a squeeze type pump 13 via a hose 38. In the mixing tank 7, the water supplied from the water tank 8 is mixed with the seed 11 and the fertilizer 12, and at this time, an erosion inhibitor and a super absorbent polymer are mixed as needed.

The vegetation material 3 is made of peat moss, bark,
It is preferably composed of fine particles of perlite, bermlite, etc., and has a water content as low as possible. Then, the seed 11 is appropriately selected according to the construction content of the construction target surface 15. The fertilizer 12 is a mixture of various types of fast-acting fertilizer, slow-acting fertilizer, and slow-acting fertilizer as appropriate.

Here, the seed 11, fertilizer 12, vegetation material 3
Table 1 shows an example of the blending ratio of the spray material 16 in which the above is mixed with water.

[0030]

[Table 1]

The numerical values in Table 1 above indicate the compounding amount per 1 m ³ . And, the spraying material 16 having such a blending ratio has water retention, less scattering, and can be easily sprayed by the spraying method according to the present invention,
It has the advantage of being inexpensive.

During spraying, the vegetation material 3 is sent by the blower 4 in the direction of the spray nozzle 6 at an air amount of 3 to 4 m ³ / min, and water mixed with seeds 11, fertilizer 12, etc. is pumped 13 It sends out to the spray nozzle 6 direction at a rate of 17.3 l / min. In this case, the surface area of the vegetation material 3 is relatively large as a vegetation material, and the specific gravity is 0.
Since it is light weight of about 1 to 1.0, it is easily supplied to the spray nozzle 6 by the wind of the blower 4, and is combined with water, seeds 11 and fertilizer 12 at a position about 20 cm upstream of the discharge port 34 of the spray nozzle 6. It becomes heavy and is blown onto the construction target surface 15 from the discharge port 34 so that it is placed on the wind of the blower 4, but since the discharge port 34 is formed in a flat shape and is narrowed down, the spray pressure becomes high and the momentum is high. Discharge well.

Since only the vegetation material supply hose 5 and the water supply hose 14 are connected to the spray nozzle 6, the operation on the construction surface 15 such as a slope is easy and reliable. There is an advantage that the spray can be performed on the spray nozzle and the shock in the spray nozzle 6 is small. In addition, since the amount of water mixed into the vegetation material 3 can be adjusted by operating the cock for adjusting the amount of water provided in the spray nozzle 6, the concentration (viscosity) according to the state of the construction target surface 15 can be adjusted. The spray material 16 can be sprayed.

Further, in the spraying machine 1, the vegetation material 3 is simply charged into the material stock tank 17, and the vegetation material 3 is supplied to the material supply preliminary chamber 18 by the conveying member 21 in the material stock tank 17. Since it is automatically stirred as it is transported to the mixing tank, the spraying work by the spraying method according to the present invention does not require an operator who performs general control of the spraying machine 1 while the mixing tank 7 In the case of
By using a material of about 00l to 4000l, it is possible to continue spraying for about 3 hours continuously without human labor, and as a result, the vegetation base material 3 is used as a material stock tank 17
Can be performed by a total of two workers, one worker for supplying the spray nozzle and one worker for operating the spray nozzle 6, so that labor and labor can be saved.

The method of the present invention is not limited to the above embodiment. For example, the vegetation material 3 may be supplied by a conventional dry spraying machine, a mortar gun machine, or the like, and instead of the blower 4. Thus, a compressor may be used.

[0036]

As described above, according to the present invention,
There is no need to provide a mixer for mixing and stirring the vegetation material, and no need for manpower for stirring. Further, since a premix of seed and vegetation material is not used, there is no fear of germination. Also, no drying process for peat moss or bark is required. Furthermore, since the spraying can be performed with good workability, the efficiency of the spraying work is improved. Moreover, since the number of workers can be reduced, 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.

[Explanation of symbols]

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

Claims (1)

[Claims] 1. A vegetation material is supplied by a blower up to a spray nozzle whose discharge port is slightly narrowed, while seed and fertilizer are supplied to this spray nozzle together with water by a pump, and the seed, fertilizer and vegetation are supplied. A method of spraying a spraying base material in a greening method, characterized in that a mixture of a material and water is sprayed onto a construction target surface.