JP2016183515A - Viscous material spraying method and system - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a spraying method and system for a viscous material that suppresses phenomena such as pulsation and clogging of a hose when spraying the viscous material and eliminates a need on a drying facility and a hydration facility, at the same time simplifying strict water content ratio management.SOLUTION: A source material with an adjusted water content is used as a viscous material. The source material with the adjusted moisture content is thrown into a spray machine 2 by a material supplier 1 with a loosening mechanism while loosening and without changing the water content ratio of the source material with the adjusted water content. The source material with the adjusted water content is pumped into a hose 3 from the spray machine 2, and is sprayed from a nozzle 4.SELECTED DRAWING: Figure 1

Description

  The present invention relates to a viscous material spraying method and system used for spraying a viscous material onto a construction surface requiring water stoppage such as a dam, a tunnel, and a final disposal site for waste.

Conventionally, a contact clay spraying method, a bentonite mixed soil spraying method, and a system used for these methods are known as a method for spraying this type of viscous material.
The former method and system are proposed by Patent Document 1, and the latter method and system are proposed by Patent Document 2.

  Patent Document 1 relates to a sealing material spraying method and a spraying device. In the method of Patent Document 1, when a sealing layer is formed on a surface to be sprayed by spraying a fluid sealing material, the sealing material The step of adjusting the amount of water to be less than the appropriate amount of water necessary for forming the seal layer and transferring it, and the step of spraying while adding the water when spraying the transferred sealing material are adopted. By taking such a process, the sealing material is adjusted to an appropriate amount of water necessary for forming the sealing layer. Further, the system of this document 1 includes a moisture content adjusting means for adjusting the moisture content of the sealing material, and a spraying machine for transferring the sealing material with the moisture content adjusted by a pressurized fluid and discharging it from the nozzle at the tip. And water supply means for supplying water to the sealing material transferred toward the nozzle of the sprayer. By providing such a configuration, the moisture content of the sealing material is in a state suitable for handling, transfer, spraying, and the like. Further, in this case, the sprayer includes a hose for transferring the sealing material, has a nozzle at the tip of the hose, and the water supply means is configured to be connected in the middle of the hose near the nozzle. By doing so, the pressure of the sealing material by the hose is facilitated and the handling thereof is improved.

  Patent Document 2 relates to a sprayed layer, and in the construction method of Document 2, viscous soil (the artificial viscous soil formed by mixing sand as a soil material and bentonite as a low water permeability material) is conveyed by a conveyor device. The viscous material in the spraying device is sent to the hose by pumping air to the spraying device, and the water is supplied from the water pump to the hose. It sprays toward the slope with a nozzle at the tip via a hose and deposits clay soil in layers on the slope. Moreover, the system of this literature 2 is equipped with the stirrer which stirs viscous soil, the sprayer which sprays viscous soil with high pressure gas, the compressor which sends high pressure gas to a sprayer, and the exit side of a sprayer A hose to be connected, a facility for supplying water to the hose, and a nozzle to be connected to the hose, and in particular, the spraying machine 22 is a built-in generator, a built-in stirrer, and a rotation that transfers viscous soil in the outlet direction. It is composed of blades and a valve portion that periodically opens the outlet side, and in this way, clay soil is deposited in layers on the slope to form the ground.

Also, Patent Document 3 proposes a spraying device effective for spraying this type of viscous material.
This spraying device comprises a hook having a material inlet opened and closed by a gate valve at the upper part and a material outlet opened and closed by a gate valve at the lower part, comprising means for pressurizing and depressurizing the inside, a rotating shaft and a plurality of blades A means for pressurizing and depressurizing the inside, a rotation having a rotary vane mechanism, and an upper pot for containing material, a pot having a material inlet communicating with the material outlet of the upper pot at the upper portion, and a material outlet at the lower portion A spraying machine having a rotary blade mechanism composed of a shaft and a plurality of blades, and having a lower pot for storing and pumping material; a compressor connected to each means for pressurizing the inside of the spraying machine and supplying air; And a nozzle that is connected to a material outlet of the lower pot via a hose and blows out the material. The rotating blade mechanism of this spraying device is such that the plurality of blades are generally arcuate as a whole, and both surfaces on the base end side extend in a substantially straight line, and both surfaces on the tip end side are gradually extended from the substantially intermediate portion to the tip end portion. These blades are formed in a curved shape so as to bend toward one surface of the blade, and the blades are directed toward the outlet side with the tip side facing toward the outlet side, and the tip side in the direction perpendicular to the one surface on the base end side of each blade in turn. At a distance corresponding to the projection distance or a dimension smaller than this, it is attached with a predetermined angle phase changed. In this way, the adjusted viscous material is loosened in the upper hook and the lower hook by the rotating blade mechanism, sent to the material outlet of the lower hook, pressure-fed through the hose, and sprayed from the nozzle.
As a result, in each of the hooks of the upper hook and the lower hook, cut the viscous material that has been adjusted separately on both sides of the base end side of each blade that extends at right angles to the rotation axis, and loosen it sufficiently, and the material outlet of each blade The material can be sent out in the direction toward the material outlet while scraping the entire surface of the inner wall of the upper and lower hooks at the tip side that curves toward the top, and the adjusted viscous material can be sent to the inner walls and blades of the upper and lower hooks. It is difficult to adhere and maintains the material's unraveling performance and scraping ability, and the adjusted viscous material that has been sufficiently loosened can be directly pumped through the hose and sprayed from the nozzle. The workability of material spraying can be greatly improved.

JP-A-9-13350 JP 2000-329781 A JP 2014-763 A

However, the conventional viscous material spraying method and system have the following problems.
(1) In the conventional contact clay spraying method and its system, the contact clay material is a highly viscous material and easily adheres to the inside of the spray machine and the hose, causing clogging and pulsation. Before the contact clay material is put into the spraying machine, the surface of the contact clay material is dried, and after the contact clay material is dried, it is put into the spraying machine and pumped to the hose. In order to return this dried material to the required amount of water when it is applied, water is added near the nozzle. For this reason, in this construction method and system, equipment for drying the material and equipment for adding water are required, and the equipment cost increases. Also, in this case, it is difficult to keep the density of contact clay material sent from the sprayer to the hose and nozzle constant at all times, and when spraying contact clay material, when adding water to the contact clay material near the nozzle, strict Water content ratio management (management of discharge amount, amount of water added, etc.) is required.
(2) In the conventional bentonite mixed soil spraying method and its system, the bentonite mixed soil is compressed by its own weight during storage and becomes a large lump, and the massed material is supplied into the spraying machine. Clogging occurs in the attaching machine or hose, causing pulsation. Also, in this construction method, only bentonite mixed soil (sand, bentonite) is introduced into the spraying machine, water is added to the bentonite mixed soil near the hose and nozzle, and the bentonite mixed soil is sprayed with water when spraying the bentonite mixed soil. Spraying is usually performed, and even in this construction method, when water is added to the bentonite mixed soil in the hose or near the nozzle, strict moisture content management (material mass management) is required.
(3) In these construction methods and systems, it is necessary to select a spraying machine according to the spraying material to be used and the spraying construction method (manual construction, machine construction), and the same material is used. Depending on the purpose, the diameter of the hose used varies depending on the purpose (for example, a small diameter hose is used for slopes and a large diameter hose is used for primary tunnel lining). It is necessary to select a hose. However, the diameter of the discharge port of the sprayer is usually different depending on the type of sprayer, and when a spray hose is selected according to the purpose, a sprayer with a discharge port that matches the diameter of the hose is prepared. Inevitably, there is no flexibility in selecting and combining hoses and sprayers, and the selection of model equipment that completely ignores marketability and versatility.
(4) Moreover, as a spraying machine used for these construction methods and systems, there are general-purpose machines such as a pressure hook type spraying machine and an air pressure type revolver spraying machine, and a spraying apparatus by the applicant of the present application. In particular, in the case of a general-purpose machine, since there is no unraveling function like the unraveling mechanism of the spraying apparatus of the applicant of the present application, the viscous material adheres in the spraying machine or the hose and is likely to be clogged and pulsated. The air pressure revolver sprayer has no ability to loosen the material because it does not have rotating wings. In addition, although there is vibration and vibration, if a viscous material is vibrated, it tends to become a lump.

  The present invention solves such a conventional problem, and in this type of viscous material spraying method and system, the phenomenon of pulsation when the viscous material is sprayed, hose clogging, and the like are suppressed. Eliminates the need for equipment and hydration equipment, simplifies strict moisture content management when spraying viscous materials, and does not limit the type of sprayer or the type (diameter) of the hose (in other words, The choice of attachment machine and hose, increase the degree of freedom of combination), not to limit the construction method such as manual construction and machine construction (in other words, to be able to handle both manual construction and mechanical construction), With the goal.

In order to achieve the above object, the viscous material spraying method of the present invention is a method in which a viscous material is introduced into a spraying machine, the viscous material is pumped from the spraying machine to a hose at a high pressure, and the nozzle is sprayed onto a construction surface. In the method of spraying the viscous material to be applied, the moisture-adjusted raw material is used as the viscous material, and the moisture-adjusted raw material is thrown into the spraying machine without changing the water content ratio. The gist is to feed the adjusted raw material after unraveling to the hose and spray from the nozzle.
In this case, the loosening of the moisture-adjusted raw material is performed before the moisture-adjusted raw material is placed in the horizontal direction, with a plurality of fixed feathers arranged in parallel in the horizontal direction, It is preferable to use a method of cutting with a plurality of rotating blades that rotate in the vertical direction between the fixed blades.

In order to achieve the above object, a viscous material spraying system according to the present invention has a loosening mechanism that supplies a viscous material as a raw material with moisture adjusted, and supplies the raw material with moisture adjusted without changing the water content ratio. A material supply facility, a spraying machine that feeds the raw material after the moisture adjustment is performed at a high pressure, a compressor that supplies a high-pressure gas to the spraying machine, and the moisture adjustment that is connected to the spraying machine A hose for transferring the raw material after unraveling, and a nozzle attached to the tip of the hose, and the raw material whose moisture has been adjusted is unloaded from the material supply equipment into the spraying machine, and the spraying The gist is that the raw material after unwinding after moisture adjustment is fed from the machine to the hose at a high pressure and sprayed by the nozzle.
In this case, the material supply facility includes a material supply device that stores and supplies the moisture-adjusted raw material, and a loosening mechanism for loosening the moisture-adjusted raw material supplied from the material supply facility. A box having openings on the top and bottom surfaces, a plurality of fixed wings arranged in parallel in a substantially horizontal direction at a lower portion in the box, and disposed above the fixed wings in the box; It is preferable to have a plurality of rotating wings that rotate vertically between the fixed wings and a discharge hopper that is disposed on the bottom surface of the box and communicates with the opening of the bottom surface. .
Further, in this case, the sprayer and the hose have a sprayer-side connection portion that can be connected to the discharge port of the sprayer in a watertight manner at one end, and the hose side that can be connected to the hose in a watertight manner at the other end. It is preferable to be connected via a different-diameter joint having a connection portion.

According to the viscous material spraying method and system of the present invention, the moisture-adjusted raw material is used as the viscous material, and the moisture-adjusted raw material is thrown into the spraying machine without changing the moisture content, and sprayed. The raw material after the moisture adjustment after the moisture adjustment is pumped from the machine to the hose and sprayed from the nozzle, so that the moisture adjusted raw material can be sufficiently subdivided and passed through the sprayer and the hose. Phenomenon such as pulsation and clogging of hose can be suppressed, and drying equipment and hydration equipment are not required, and strict moisture content management during viscous material spraying is simplified. Can do.
In this case, the sprayer and the hose are connected via a different-diameter joint, so that the selection and combination of the sprayer and the hose are not limited without limiting the type of sprayer and the type (diameter) of the hose. The degree of freedom can be increased, and various types of spraying machines and hoses are not limited to construction methods such as manual construction and mechanical construction, and can be adapted to both manual construction and mechanical construction.

The figure which shows the spraying method and system of the viscous material in one embodiment of this invention The figure which shows the material supply equipment with a loosening mechanism used for the method and system (perspective view) The figure which shows the structure of each part of the material supply equipment with a loosening mechanism used for the method and system ((a) is a top view (b) is a side view (c) is a front view) The figure which shows the different diameter joint used for the method and system The figure which shows the construction flow by the same method and system and the construction flow of the conventional construction method

Hereinafter, embodiments for carrying out the present invention will be described with reference to the drawings.
FIG. 1 also shows a viscous material spraying method and system according to an embodiment of the present invention.
As shown in FIG. 1, this viscous material spraying method is a method in which a viscous material is put into a spraying machine, the viscous material is pumped from a spraying machine to a hose at a high pressure, and sprayed onto a construction surface by a nozzle. In this spraying method, in particular, the moisture-adjusted raw material is used for the viscous material, and this moisture-adjusted raw material is thrown into the spraying machine while being subdivided without changing the water content ratio of the moisture-adjusted raw material. The raw material after the moisture adjustment after the moisture adjustment was pressure-fed from the sprayer to the hose and sprayed with the nozzle. In this case, unraveling the moisture-adjusted raw material is performed by placing a plurality of fixed wings arranged in parallel in the horizontal direction, above each fixed wing, and above each fixed wing before introducing the moisture-adjusted raw material into the spraying machine. This is done by a method of cutting with a plurality of rotating blades that rotate in the vertical direction.

This viscous material spraying method is realized by the following viscous material spraying system S.
This spraying system S uses a viscous material as a raw material whose moisture has been adjusted, a material supply facility 1 with a loosening mechanism that supplies this moisture-adjusted raw material while loosening and subdividing it without changing the water content ratio, and a moisture-adjusted material. A blower 2 that sends out the raw material after unraveling at high pressure, a compressor (not shown) that feeds high-pressure gas to the sprayer 2, and a raw material after unraveling that is connected to the sprayer 2 and has been moisture-adjusted Hose 3 for transferring the water, and a nozzle 4 attached to the tip of the hose 3 for ejecting the raw material after the moisture adjustment after the moisture adjustment.
In this spraying system S, the model of the sprayer 2 and the type (diameter) of the hose 3 are not particularly limited. Moreover, in this spraying system S, construction methods, such as manual construction and machine construction, are not limited.

As shown in FIGS. 2 and 3, the material supply facility 1 includes a material supply device 10 that houses and supplies a moisture-adjusted raw material, and a first material that transports the moisture-adjusted raw material supplied from the material supply device 10. , The unraveling mechanism 12 for loosening the moisture-adjusted raw material conveyed by the first conveyance device 11, and the moisture-adjusted raw material unraveled by the unraveling mechanism 12 by the sprayer 2. And a second transport device 13 (see FIG. 1) for transporting toward the head.
The material supply apparatus 10 employs a hopper having a charging port at the top and a discharge port at the bottom and having a substantially quadrangular pyramid shape as a whole. The bag breaker 101 is attached to the hopper via a plurality of attachment members extending upward from the four corners of the upper inlet to a position corresponding to the center of the inlet. The bag breaker 101 is a rod-like member with a sharp upper end. The material supply device 10 is installed at an appropriate position on the construction site via a mount 14 with a work table. In this way, the viscous material (the raw material whose moisture has been adjusted) is packed in the flexible container bag (flexible container bag) and transported above the upper inlet of the hopper, and the flexible container bag is broken by the bag breaking machine 101 to obtain the material. Are introduced from the inlet at the upper part of the hopper, and discharged sequentially from the outlet at the lower part of the hopper.
A belt conveyor is employed as the first transport device 11. This belt conveyor is installed obliquely through a gantry 14 at a position close to the material supply device 10, one end is disposed below the lower discharge port of the material supply device (hopper) 10, and the other end is a loosening mechanism 12 described later. It is arranged close to the material input port (opening of the top surface of the box 120). The material discharged from the material supply apparatus 10 is conveyed to the unwinding mechanism 12 by this belt conveyor, and is put into the material input port of the unwinding mechanism 12.
The unraveling mechanism 12 is disposed above the fixed wing 121 in the box 120, the box 120 having openings on the top surface and the bottom surface, a plurality of fixed wings 121 arranged in parallel in a substantially horizontal direction at the bottom of the box 120. A plurality of motor-driven rotary blades 122 that rotate in the vertical direction between the fixed wings 121 so that the wing tips enter between the fixed wings 121 and the bottom surface of the box 120 are disposed in the openings on the bottom surface. A discharge hopper 123 in communication therewith. In this case, each of the plurality of fixed wings 121 is formed in an elongated bar shape, and a sawtooth blade is provided on the upper surface thereof, and is laid across the lower portion of the box 120 so as to be detachable in parallel at equal intervals in the horizontal direction. The Since the fixed wings 121 are detachable, the number of the fixed wings 121 and the space between the fixed wings 121 are variable. Each of the plurality of rotary blades 122 is made of a long and narrow flat plate or bar, and is arranged around the motor-driven rotary shaft 12s in the box 120 in a double row corresponding to the space between the fixed blades 121 and equiangular for each row. Further, the rotary blades 122 in rows adjacent to each other are arranged in a staggered manner so that the blade tips enter the space from the space between the fixed blades 121 at intervals. Further, the rotation speed and rotation direction of the rotary blade 122 are made variable by inverter control, and by changing one or both of the rotation speed and rotation direction of the rotary blade 122 and the number of the fixed feathers 121 described above. Depending on the material, it is possible to optimize the loosening state of the material. In addition, by making the rotational speed of the rotating blade 122 constant, the rotating blade 122 has a function of compensating for material excess / deficiency. Regardless of the increase or decrease of the material mass continuously falling freely in the box 120, the material passing through the fixed wing 121 is loosened (subdivided) and becomes a constant amount, and if the material mass is large, the residence time of the material becomes long, If it is less, it will be shorter, but it will fall continuously, so it can be supplemented with additional parts. Thereby, a certain amount of material is discharged from the discharge hopper 123 below the box 120, and the bulk density of the material supplied to the sprayer 2 becomes constant.
The unraveling mechanism 12 is installed via a mount 14 at a position facing the material supply device 10 with the first transport device 11 interposed therebetween, and the opening of the top surface of the box 120 is close to the other end of the first transport device 11. Arranged. In this way, the material conveyed by the first conveying device 11 is continuously dropped into the opening of the top surface of the box 120 by free fall, and the material is loosened (divided) by the rotary blades 122 inside the box 120. Is discharged from the discharge hopper 123 below the box 120 by free fall. The material that has not hit the rotating blade 122 stays on the fixed blade 121 and is loosened by the rotating blade 122 and then discharged from the discharging hopper 123 below the box 120.
A belt conveyor is employed as the second transport device 13. This belt conveyor is installed between the unraveling mechanism 12 and the sprayer 2, one end is disposed below the discharge hopper 123 of the unraveling mechanism 12, and the other end is disposed above the material inlet of the sprayer 2. The The material discharged from the unwinding mechanism 12 by this belt conveyor is conveyed to the spraying machine 2 and put into the material input port of the spraying machine 2.

As described above, the sprayer 2 is not particularly limited, and an arbitrary model is selectively adopted from general-purpose machines such as a pressure hook type sprayer and an air pressure feed type revolver sprayer.
Here, it is assumed that a generally known pressure hook type sprayer or an air pressure feed type revolver sprayer is used.
In this case, since the sprayer 2 uses compressed air that does not contain moisture, a dry compressor is employed as the compressor.

The hose 3 and the nozzle 4 are not particularly limited as described above, and are arbitrarily selected from general-purpose equipment.
In this case, as shown in FIG. 4, the sprayer 2 and the hose 3 have a sprayer-side connection portion 51 that can be connected to the discharge port of the sprayer 2 in a watertight manner at one end, and at the other end. It connects with the hose 3 through the different diameter joint 5 which has the hose side connection part 52 which can be connected watertightly. In this case, the different diameter joint 5 has a sprayer side connection port 511 that can be connected to the discharge port of the sprayer 2 at one end and a hose side connection port 512 that can be connected to the hose 3 at the other end. The diameter joint pipe 510, the rubber ring wound around the outer periphery of the connecting portion between the sprayer side connection port 511 of the different diameter joint pipe 510 and the discharge port of the spraying machine 2, and the rubber ring (from the top to the entire circumference) And a rubber ring wound around the outer periphery of the connecting portion between the hose side connection port 512 of the different diameter joint pipe 510 and the hose 3, and the rubber. The sprayer side tightening ring 514 comprising two split rings capable of tightening the ring (from the top to the entire circumference) and between the split rings of the tightening rings 513 and 514 are tightened. Bolt for attaching, constituted by a nut.
It should be noted that a Victorian joint (product name) manufactured by Nihon Victoria Co., Ltd. can be used for each of the fastening rings 513 and 514 of the different diameter joint 5. This Victorian joint is available in various sizes depending on the operating pressure and is easily available.

This spraying system S has such a configuration, and the material supply equipment 1 unloads the moisture-adjusted raw material into the sprayer 2, and from the sprayer 2, the moisture-adjusted raw material is hose at high pressure. 3 and is sprayed onto the construction surface by the nozzle 4.
FIG. 5 shows the construction flow of the spraying method using this spraying system S together with the construction flow of the conventional method. As shown in FIG. 5, in the conventional method, there are procedures for drying and adding water to the material. However, in this spraying method, these steps are omitted, and the moisture-adjusted material is used as it is, that is, moisture adjustment. The used viscous material was sprayed continuously without drying and without adding water without changing the water content. Further, since the procedure relating to the water content ratio is omitted, the water content ratio of the material becomes constant after the moisture adjustment and after spraying. It has been confirmed by a preliminary test that the dry density of the material before and after passing through the loosening mechanism is constant.

And this spraying system S respond | corresponded as follows especially with respect to the following conventional problems.
(1) Conventionally, viscous materials such as bentonite mixed soil and contact clay material are compressed by their own weight during storage and tend to become large lumps, which causes phenomena such as adhesion, clogging, and pulsation in the sprayer and the hose.
In this spraying system S, as shown in FIG. 1, the material supply facility 1 is provided with a viscous material loosening mechanism 12, so that a highly viscous material can be loosened and subdivided sufficiently and sufficiently through the loosening mechanism 12. The fixed wings 121 of the unraveling mechanism 12 are detachable, and the number of the fixed wings 121 is increased and decreased, and the spacing between the fixed wings 121 is adjusted, whereby the unraveling ability of the viscous material is increased by the sprayer 2, the hose 3, Moreover, since it can be changed according to the viscous material, the loosening mechanism 12 subdivides the viscous material into a size corresponding to the spraying machine 2 and the material, so that the viscous material is contained in the spraying machine 2 and the hose. 3 can be prevented from adhering to the inside 3, or causing a phenomenon such as clogging or pulsation. Therefore, there is no need to dry or hydrate the viscous material, and the drying equipment and hydration equipment that are essential for spraying contact clay materials can be omitted, thus greatly reducing the equipment cost. Can do. Moreover, since the material of high moisture content adjusted for moisture is sprayed as it is, strict moisture content management at the time of spraying becomes unnecessary. The result is that the moisture content of the moisture-adjusted material is the moisture content after spraying.
(2) The conventional phenomenon of hose clogging and pulsation when spraying clayey clay is not only supplying a large mass to the sprayer but also not supplying a stable material to the sprayer. Is one of the factors. Normally, a hopper is used to supply the viscous soil, and the material thrown into the hopper is discharged from the outlet by free fall, but since it is free fall, the discharge amount is dominated by the feed amount to the hopper. is there. In addition, in the case of a highly viscous material, it has been found that small lumps are combined at the outlet of the hopper and collected in the vicinity of the outlet and discharged together at a certain point of time, resulting in unstable supply.
In this spraying system S, as shown in FIG. 1, the loosening mechanism 12 has a funnel structure as a whole by the combination of the box 120 and the discharge hopper 123, the material input port is wide, and the discharge port is narrow. The material can be easily put in from the mouth, and the amount of the material supplied can be quantified to some extent by the narrow discharge port, and then the viscous material is loosened in the box 120 and retained by the rotating blade 122 and the fixed blade 121 of the mechanism 12, Since the viscous material after unraveling is supplied while sufficiently unraveling this, the material after unraveling can be quantitatively supplied. Further, the fixed wings of the unraveling mechanism 12 are detachable, and the number of fixed wings is increased or decreased, and the spacing between the fixed wings 121 is adjusted so that the unraveling ability of the viscous material is increased by the sprayer 2, hose 3, Moreover, it can change according to a viscous material, By making a loosening capability variable in this way, it can construct without changing the moisture content, supplying a material with the bulk density of material constant. In addition, by making the bulk density constant, it is possible to suppress over-rolling pressure during construction and to turn around to suppress material loss. In addition, the sprayer 2 is not limited, and any model can be selected according to the field conditions such as the marketability and construction amount of the aforementioned pressure cooker type sprayer, air pressure revolver sprayer and other heavy machinery. can do. The unwinding capability of the unwinding mechanism 12 can be further changed by making the rotating blades 122 detachable and increasing or decreasing the number of the rotating blades 122.
(3) In general, the sprayer has a limited hose diameter that can be used due to its mechanism. That is, the diameter of the discharge port varies depending on the spraying machine, and the diameter of the hose varies depending on the purpose even if it is the same material (in the case of a slope, use a hose with a small diameter, in the case of tunnel lining, Therefore, it is necessary to select a hose according to the purpose and to select a sprayer corresponding to the hose. For this reason, in order to select a model that is rich in marketability and versatility, it is necessary to be able to connect the discharge port of the sprayer and a hose having a diameter different from the diameter of the discharge port.
In this spray system S, as shown in FIG. 4, the hose 3 having a diameter different from that of the discharge port is connected to the discharge port of the spray device 2 via the different diameter joint 5. A free combination of the hoses 3 can be realized. By connecting the sprayer 2 and the hose 3 with the different diameter joint 5, the hose 3 to be used is not limited. With the same sprayer 2, the operator manually holds the nozzle 4 at the tip of the hose 3 by hand. Construction, machine construction by a general-purpose machine that attaches the nozzle 2 at the tip of the hose 3 to the excavator tip of a general-purpose machine such as a backhoe, machine construction by a special-purpose machine that attaches the nozzle 4 at the tip of the hose 3 to the front arm of the special machine, etc. Construction according to the purpose becomes possible.

As described above, according to this viscous material spraying method and system, the moisture-adjusted raw material is used as the viscous material, and the moisture-adjusted raw material is thrown into the spraying machine without changing the water content ratio. However, since the raw material after the moisture adjustment after the moisture adjustment has been pumped from the sprayer to the hose and sprayed from the nozzle, the moisture adjusted raw material can be sufficiently subdivided and passed through the sprayer and the hose. It is possible to suppress the phenomenon of pulsation when the viscous material is sprayed and clogging of the hose, and eliminate the need for drying equipment and hydration equipment, and at the same time, strictly control the moisture content when spraying the viscous material. It can be simplified.
Also, in this case, by connecting the sprayer and the hose via different diameter joints, the type of sprayer and the type (diameter) of the hose are not limited. The degree of freedom can be increased, and various spraying machines and hoses can be arbitrarily adapted to various construction methods without being limited to construction methods such as manual construction and machine construction.

DESCRIPTION OF SYMBOLS 1 Viscous material spraying system 1 Material supply equipment 10 Material supply apparatus 101 Bag breaker 11 First conveyance apparatus 12 Unraveling mechanism 120 Box 121 Fixed blade 12S Rotating shaft 122 Rotation blade 123 Discharge hopper 13 Second conveyance apparatus 14 Work Mount with base 2 Sprayer 3 Hose 4 Nozzle 5 Different diameter joint 51 Sprayer side connection 52 Hose side connection 510 Different diameter joint pipe 511 Sprayer side connection 512 Hose side connection 513 Blaster side tightening Ring 514 Hose side tightening ring

Claims (5)

In the method of spraying the viscous material, the viscous material is charged into the spraying machine, the viscous material is pumped from the spraying machine to the hose at a high pressure, and the nozzle is sprayed onto the construction surface.
Using a raw material that has been moisture-adjusted as a viscous material, throwing the raw material that has been moisture-adjusted into the spraying machine while unraveling without changing the water content ratio, Pumped to the hose and sprayed from the nozzle,
A method for spraying a viscous material.   Before the moisture-adjusted raw material is unloaded, before the moisture-adjusted raw material is put into the spraying machine, a plurality of fixed wings arranged in parallel in the horizontal direction and above each fixed wing and above each fixed wing The method for spraying the viscous material according to claim 1, wherein the method is performed by a method of cutting with a plurality of rotating blades that are rotated in the vertical direction. A material supply facility with a loosening mechanism that uses a viscous material as a raw material whose moisture has been adjusted, and supplies the raw material whose moisture has been adjusted without changing the water content ratio,
A spraying machine for feeding the moisture-adjusted raw material at high pressure;
A compressor for supplying high-pressure gas to the sprayer;
A hose connected to the sprayer, for transferring the raw material after the moisture adjustment, and a nozzle attached to the tip of the hose;
With
The raw material after moisture adjustment is unraveled from the material supply facility and introduced into the sprayer, and the moisture-adjusted raw material is pumped from the sprayer to the hose at a high pressure and sprayed by the nozzle. ,
A viscous material spraying system.   The material supply facility includes a material supply device that stores and supplies moisture-adjusted raw materials, and a loosening mechanism for loosening the moisture-adjusted raw materials supplied from the material supply facility. A box having an opening on the bottom surface, a plurality of fixed wings arranged in parallel in a substantially horizontal direction at a lower portion in the box, and arranged above the fixed wings in the box and vertically between the fixed wings A viscous material spraying system having a plurality of rotating wings that rotate in the direction and whose wings enter between the fixed wings, and a discharge hopper that is disposed on the bottom surface of the box and communicates with the opening of the bottom surface .   The sprayer and the hose have a sprayer-side connection portion that can be connected to the discharge port of the sprayer in a watertight manner at one end, and a hose-side connection portion that can be connected to the hose in a watertight manner at the other end. The viscous material spraying system according to any one of claims 4 to 6, wherein the viscous material spraying system is connected via a radial joint.

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