JPH11276940A - Transporting device and spray device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To continuously transport a main material by connecting a base end of a transporting pipe to a discharge port of a stirring and mixing vessel provided with a stirring means and providing an ejector for sucking the main material with compressed air to transport. SOLUTION: In the spray execution of mortal used in a slope work, the mortal produced by mixing cement, sand and water in a mixer M is charged into the stirring and mixing vessel 3 by the transporting device at first. Next, the mortal is discharged from the discharge port 2 to the transporting pipe 4 while being stirred and mixed by rotating the stirring means 1, and next, the compressed air from a compressor C is supplied to the ejector 5 to make the pressure near the discharge port 2 negative and the mortal is sucked by the negative pressure to be transported to the tip end side of the transporting pipe 4. The transported mortal is sprayed from a spray nozzle at the tip part and placed in a form on the slope or on the existing mortal to repair the crack or the like.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a transporting and spraying apparatus for transporting and spraying a main material, particularly soil, vegetation base material, mortar or concrete.

[0002]

2. Description of the Related Art Conventionally, as a transporting or spraying apparatus for transporting a main material such as a soil, a vegetation base material (such as bark compost or peat moss), a mortar or a concrete, which is mainly used in the field of civil engineering, especially in a slope construction. The pressurized tank type is generally adopted. This type of pressurized tank type transfer apparatus is provided in the closed tank, after sealing the transfer material in a closed tank, sending compressed air into the closed tank and pressurizing the tank. This is a transporting and spraying device of a type that transports these main materials from a discharge port through a transport pipe connected to the outlet.

[0003]

However, the prior art has the following problems. The closed tank used in the above-mentioned pressurized tank system is required to have a pressure resistance up to about 10 kgf / cm @ 2, and is relatively expensive and uneconomical. In addition, it is rugged, and it has a considerable weight, so its mobility is not good. Further, since such a closed tank must be completely sealed during transfer, continuous transfer cannot be performed, and transfer is performed in a batch process.
In the case of such a batch process, since a deaeration operation of the closed tank and a filling operation of a new transport material are performed between the batches, a large time loss occurs between the batches, resulting in poor transport efficiency, which is not suitable for mass transport. . In addition, closed tanks are usually 8 ~
Since the pressure is as high as 10 kgf / cm @ 2, there is also a problem that safety management must be carefully performed.

The present invention has been made in view of the above problems, and has as its object to improve the soil, vegetation base material,
A conveying and spraying device for conveying and spraying mortar or concrete main material, capable of continuous conveying processing, and the entire device is lightweight, excellent in mobility, and economical with a simple structure. Another object of the present invention is to provide an excellent conveying device and spraying device.

[0005]

The gist of the present invention is to provide a conveying device for conveying a main material which is a soil, a vegetation base material, a mortar or a concrete. A stirring and mixing container having a discharge port capable of discharging the stirred or mixed main material, a transfer pipe having a base end connected to the discharge port, and a compressed air provided in the transfer pipe, An ejector that sucks the main material from the discharge port and conveys the main material to a distal end side of the conveying pipe. The gist of the invention according to claim 2 is a spraying device that conveys a main material that is a soil, a vegetation base material, mortar, or concrete, and includes a stirring unit, and the main material stirred or mixed by the stirring unit. A stirring and mixing vessel having a discharge port capable of discharging, a transport pipe having a base end connected to the discharge port, and a suction pipe for suctioning the main material from the discharge port using compressed air provided in the transport pipe. And an ejector that conveys to the distal end side of the conveying tube,
A nozzle is provided at a tip of the transfer pipe, and the main material is jetted from a tip of the nozzle onto a target surface.

[0006]

Embodiments of the present invention will be described below in detail with reference to the drawings. (First Embodiment) As shown in FIG. 1, a transport device according to a first embodiment comprises a stirring means 1 and a soil, a vegetation base material, a mortar, or a soil stirred or mixed by the stirring means 1. A stirring vessel 3 having a discharge port 2 capable of discharging a main material made of concrete, a transport pipe 4 having a base end connected to the discharge port 2, and a discharge pipe provided in the transport pipe 4 and utilizing compressed air. An ejector 5 is provided for sucking the main material from the outlet 2 and conveying the main material to the distal end side of the conveying pipe 4.

[0007] The ejector is generally commercially available, and is generally a short cylindrical body having a double pipe structure as shown in FIG. This is a device that generates a negative pressure on the other direction side, sucks up the main material from the other direction side, and conveys it in one direction.

Next, a method of transferring mortar using the transfer device according to the embodiment of the present invention will be described with reference to FIG.

First, a mortar produced by mixing cement, sand and water with a mixer M is put into a stirring vessel 3 by a transport device such as a belt conveyor.

Next, the mortar is discharged from the discharge port to the transport pipe 4 while the mortar is stirred or mixed by rotating the stirring means. When the mortar is forcibly stirred by the stirring means, a void (air passage) is generated in the mortar, and outside air is supplied near the discharge port 2.

Next, the compressed air from the compressor C is supplied to the ejector 5 to make the vicinity of the discharge port 2 into a negative pressure state, and the mortar is sucked by the negative pressure and conveyed to the tip side of the conveying pipe 4.

Although the description has been made on the basis of the method of transporting the mortar, the present invention can be carried out in exactly the same manner with other soils and vegetation base materials.

Since such a transport device is configured as described above, a conventional heavy and expensive closed tank or the like is not required, which is economical. Moreover, since the weight is reduced, the mobility is excellent.

Further, since a closed tank is not required and the stirring vessel can be always used in a state open to the outside air, there is no need for batch processing and continuous transportation is possible. Further, since it is not necessary to manually open and close the closed tank for each batch, which has conventionally been performed manually by an operator, the number of personnel can be reduced.

(Second Embodiment) Next, a spraying device according to a second embodiment will be described with reference to FIG.
The spraying device includes a stirring vessel 1 having a stirring means 1, a discharge port 2 capable of discharging a main material made of a soil, a vegetation base material, mortar or concrete stirred or mixed by the stirring means 1, and a discharge port. A transport pipe 4 having a base end connected to the transport pipe 2 and an ejector 5 provided in the transport pipe 4 for sucking the main material from the discharge port 2 using compressed air and transporting the main material to the distal end side of the transport pipe 4. At the same time, a spray nozzle 6 is provided at the tip of the transport pipe 4. The configuration other than the spray nozzle 6 is the first
This is similar to the embodiment. However, in a slope operation or the like, since the spray nozzle 6 is held by an operator to perform the spraying operation, it is preferable to use a flexible pipe material such as a rubber hose on the distal end side of the transport pipe 4.

Next, a method of spraying mortar using the spraying apparatus according to the present embodiment will be described. First, similarly to the first embodiment, cement, sand, and water are charged into the mixer M, and the manufactured mortar is charged into the stirring vessel 3 by a transport device such as a belt conveyor.

Next, while rotating or stirring the mortar by stirring the mortar, the mortar is transferred from the discharge port to the transfer pipe 4.
To discharge.

Next, the compressed air from the compressor C is supplied to the ejector 5 to make the vicinity of the discharge port 2 a negative pressure state, and the negative pressure sucks the mortar and conveys the mortar to the distal end side of the conveying pipe 4.

The mortar conveyed in the conveying pipe 4 is sprayed from a spray nozzle 6 at the tip onto a surface of an existing mortar for repairing a crack in a mold provided on a slope or for repairing a crack.

In the above method of spraying mortars, a method in which water is added in the mixer M is exemplified. However, only sand and cement are mixed in the mixer M and transported by the transport pipe 4, while
The added water can be transported in a separate system from the transport pipe 4 and combined and added to sand and cement near the spray nozzle 6. By adding water in this way, the suction and conveyance of the main material by the ejector 5 are improved, and the conveyance amount per time can be improved.

Although the mortar spraying apparatus has been described above, the present invention can be applied to soil and vegetation base materials in the same manner.

The same effect as that of the transporting device according to the first embodiment can be obtained by this spraying device.

In the present invention, the type of the stirring means is not particularly limited, and is suitable for carrying out the present invention, such as a Henschel mixer, an omni mixer, a tilting mixer, a twin-screw kneading mixer, and a pan-type mixer. Can be used.

In the above description of the present invention, the main material is manufactured using a mixer separate from the stirring means of the present invention.
Naturally, the stirring means of the present invention can also be used for producing main materials such as soil, vegetation base material, mortar, concrete and the like.

Further, the number, position, shape, etc. of the above-mentioned constituent members are not limited to the above-mentioned embodiment, but can be set to suitable numbers, positions, shapes, etc. for carrying out the present invention. In particular, a plurality of ejectors can be provided in the middle of the transfer pipe to increase the transfer efficiency or transfer the transfer over a long distance. In addition,
In each drawing, the same components are denoted by the same reference numerals.

[0026]

Since the present invention is configured as described above, the following effects can be obtained. This eliminates the need for a heavy and expensive closed tank, which has been conventionally used, and is economical, lightweight, and excellent in mobility. Further, such a closed tank is not required, and the stirring vessel used in the present invention can always be used in a state of being opened to the outside air, so that there is no need for batch processing and continuous conveyance and spraying are possible. Further, since the operation of opening and closing the closed tank for each batch, which has conventionally been manually performed by the operator, is not required, the number of personnel can be reduced.

[Brief description of the drawings]

FIG. 1 is a side view of a transport device according to a first embodiment of the present invention.

FIG. 2 is a longitudinal sectional view of the ejector shown in FIG.

FIG. 3 is a conceptual diagram showing a method of transporting mortar using the transport device shown in FIG.

FIG. 4 is a conceptual diagram of a spray device according to a second embodiment of the present invention.

[Explanation of symbols]

 C Compressor M Mixer 1 Stirring means 2 Discharge port 3 Stirring vessel 4 Transport pipe 5 Ejector 6 Spray nozzle

[Procedure amendment]

[Submission date] November 4, 1998

[Procedure amendment 1]

[Document name to be amended] Drawing

[Correction target item name] All figures

[Correction method] Change

[Correction contents]

FIG.

FIG. 2

FIG. 3

FIG. 4

Claims (2)

[Claims] 1. A spraying device for conveying a main material, which is soil, vegetation base material, mortar or concrete, comprising a stirring means, and a discharge port capable of discharging the main material stirred or mixed by the stirring means. A stirring and mixing vessel having a transport pipe having a base end connected to the discharge port, and provided on the transport pipe, sucking the main material from the discharge port using compressed air, A transport device comprising: an ejector for transporting the distal end side. 2. A spraying device for conveying a main material, which is soil, vegetation base material, mortar or concrete, comprising a stirring means, and a discharge port capable of discharging the main material stirred or mixed by the stirring means. A stirring and mixing vessel having a transport pipe having a base end connected to the discharge port, and provided on the transport pipe, sucking the main material from the discharge port using compressed air, A spraying apparatus comprising: an ejector that conveys to a front end side; a nozzle provided at a front end of the conveying pipe; and the main material is ejected from a front end of the nozzle onto a target surface.