KR100647531B1 - Injection Device System by the use of Cement Mineral Based Set Accelerator - Google Patents

Abstract

The present invention relates to a wet shotcrete equipment system using a cement mineral filler, forming a pumping pressure to inject concrete into the pumping pipe 112 to form a pumping pressure to inject the concrete, the pumping pipe To form a transport pipe 114 for transporting concrete through a supply pipe 113 formed to supply concrete to be conveyed to the 112, to supply and mix the fastener to the concrete transported in the transport pipe 114 The concrete conveying unit 110 and the supply pipe 113 and the wire-shaped confluence pipe 121 of the concrete conveying unit 110, which are formed to be injected through the injection nozzle 116 through the formed quick-mixing mixture tube 115 Form a connection, and connect the compressed air supply pipe 123 so that the compressed air is supplied to the wire-shaped confluence pipe 121, and the pressure indicator 125 and the pressure indicating the pressure to the other side of the compressed air supply pipe 123 Regulating Concrete dispersion unit 120 and the transport pipe 114 for transporting the concrete dispersed in the concrete dispersion unit 120 formed by supplying compressed air to the concrete by forming a force control valve 124 to be dispersed The confluence pipe 133 is formed and connected to the compressed air supply pipe 134, and the fast condenser of the rapid supply device 131 at the pressure of the compressed air is supplied through the rapid supply pipe 132, the conical pipe 133 The fastener and the compressed air to be joined to the concrete, the pressure indicator 136 for indicating the pressure to the other side of the compressed air supply pipe 134, and the quickener having a pressure control valve 135 for adjusting the pressure. The supply unit 130 and the injection mixture pipe 115 and the injection confluence pipe 141 for generating a vortex by generating a vortex to generate a vortex injection nozzle 116 Of the injection confluence pipe 141 Vortex formed by connecting the compressed air supply pipe 142 for supplying the compressed air to the side, the pressure indicator 144 for indicating the pressure to the other side of the compressed air supply pipe 142 and the pressure control valve 143 for adjusting the pressure The production unit 140, the concrete dispersion unit 120, the fastener supply unit 130 and the vortex generation unit 140 is connected to the compressed air supply pipe 123, 134, 142 and the connection pipe 152 to the valve ( 153, the wet shotcrete equipment system using a cement mineral filler, characterized in that it comprises a compressed air supply unit 150 for supplying the compressed air formed in the compressor (151).

Cement mineral quickener, shotcrete, spray nozzle, injection conduit, injection hole, vortex

Description

{Injection Device System by the use of Cement Mineral Based Set Accelerator}

1 is a block diagram showing a shotcrete pouring equipment system according to the prior art.

Figure 2 is a block diagram showing another shotcrete pouring equipment system according to the prior art.

Figure 3 is a block diagram showing a wet shotcrete pouring equipment system using a cement mineral quickener according to the present invention.

Figure 4 is a block diagram showing another embodiment of the wet shotcrete pouring equipment system using the cement mineral-based fastener according to the present invention.

5 is a cross-sectional view showing the shape of an injection confluence pipe, which is a main part of the wet shotcrete pouring equipment system using the cement mineral quickener according to the present invention.

6 is a cross-sectional view taken along the line A-A of the injection confluence pipe, which is a main component of the wet shotcrete pouring equipment system using the cement mineral quickener according to the present invention.

Figure 7 is an exploded perspective view showing an exploded state of the injection confluence pipe, which is a main part of the wet shotcrete pouring equipment system using the cement mineral filler according to the present invention.

8 is a cross-sectional view showing the operating state of the wet shotcrete pouring equipment system using the cement mineral-based fastener according to the present invention.

* Explanation of symbols for main parts of drawings *

100: pouring equipment 110: concrete conveying unit

111: pump pump 112: pump pipe

113: supply pipe 114: transport pipe

115: rapid mixing mixer 116: spray nozzle

120: concrete dispersion unit 121: Y-shaped conduit pipe

121a: concrete transfer pipe 121b: confluence supply pipe

122: injection conduit pipe 122a: injection ring

122b: Air chamber 122c: Injection hole

122d: casing 122e: confluence supply pipe

123: compressed air supply pipe 124: pressure control valve

125: pressure indicator 130: fastener supply unit

131: rapid payment supply device 132: rapid payment supply pipe

133: Y-shaped conduit 133a: concrete transfer pipe

133b: confluence supply pipe 134: compressed air supply pipe

135: pressure control valve 136: pressure indicator

140: vortex generation unit 141: injection confluence pipe

141a: Injection ring 141b: Air chamber

141c: Injection hole 141d: Casing

141e: confluence supply pipe 142: compressed air supply pipe

143: pressure regulating valve 144: pressure indicator

150: compressed air supply unit 151: compressor

152: connector 153: main valve

The present invention relates to a wet shotcrete equipment system using cement mineral fillers, and more particularly, in a pouring system by mixing a fastener into concrete to spray wet shotcrete and spraying it with a spray nozzle, to disperse concrete. A radially inclined injection hole is formed in the vortex generating unit that forms the vortex just before the injection by installing it in the concrete dispersion unit and the injection nozzle to supply the compressed air to form an injection confluence pipe for supplying the compressed air to the vortex. It prevents backflow even under pressure and improves the quality of shotcrete by uniformly mixing with cement, and forms vortex inside to minimize the pulsation during injection and the rebound that leaks to the bottom instead of spraying in front of the nozzle to increase the injection efficiency. Wet Shotcrete Placement Using Cement Mineral Quickener It relates to an equipment system.

Recently, the construction of tunnels and underground spaces has increased and the cross-sectional area has been increased in subway, road, national railway and high-speed railway construction to preserve the ground environment for the necessity of expansion of social infrastructure and the efficiency of the use of the land. Is in the trend of becoming.

As such, the construction method mainly used for tunnel construction, dam construction or underground structure construction as part of the enlarged underground construction is called the New Austrian Tunnelling Method (NATM). Constructed according to the principle of ground behavior, which is judged according to the reality, not the back, and it is the concept that the main constituent of the tunnel is the surrounding ground and the ground hole is the means to maintain and reinforce the original strength of the ground. It is an excavation surface stabilization method that stabilizes the excavation surface by maintaining the stability of the tunnel by using the bolt and shotcrete as support material and stabilizing the ground by maximizing the support capacity of the base immediately after rock excavation.

Shotcrete used as a support material of the excavation surface stabilization method as described above is a work to prevent collapse by reinforcing rock or ground, without the need for a separate formwork of pneumatics and pumps on the ground excavated using shotcrete equipment It is concrete that is sprayed and fixed by pressure. It prevents the ground from loosening, maintains the strength of the original ground, and distributes the load as a concrete arch to smooth the excavated surface to prevent stress concentration, thus securing strength early and improving adhesion to the excavated rock. In addition, the ability to minimize rebound and dust generation is required.

There are two types of shotcrete construction methods, a dry method and a wet method, and the wet method can be further divided into air pump and pump pump.

In the dry method, the dry aggregate is sufficiently dry, and then the fastener is mixed and supplied to the injector to be injected into the injector, and compressed air is sprayed from the nozzle. The blended water is then mixed with the aggregate in the nozzle to the construction surface. Spray is fixed at high speed.

However, the dry method has the disadvantages that the material management, compounding ratio, water supply and the supply of fasteners are difficult compared to the wet method, so that the quality control of the material is not constant and dust and rebounds are high, resulting in a high cost of material loss. It is also more difficult than wet. In general, the material should be dry in the absence of water, so if sand or gravel contains surface water for various reasons, the mixing with the cement is completed and if it is not transported to the working location within a short time, solidification begins. The quality of shotcrete may be degraded. Therefore, it is necessary to pay special attention to the storage of materials, so that it should not be exposed to precipitation and direct sunlight, and the incoming materials should be inspected for the surface quantity of aggregates in addition to the particle size distribution through pre-inspection. Depending on the performance of the mixer, the content criteria allow several factors, such as mixing time, post-mixing transport and waiting time, to determine the extent to which work is not significantly affected by simple field experiments.

On the other hand, the wet process uses a concrete batching plant when mixing materials by adding water to mix all the materials well, supplying them to the injector, applying compressed air at the nozzle to increase the spraying speed, and spraying and fixing to the construction surface. In addition, because the concrete mixer truck is used for transportation, the material management or quality maintenance is relatively advantageous compared to the dry method, and has the advantage of low rebound and dust generation, while the construction machine is large and the workability is poor.

Since wet shotcrete is sensitively influenced by the materials used, the formulation, the various construction conditions, and the casting method, the wet shotcrete is rebounded according to the quality of the accelerator and the concrete, which are admixtures for fastening concrete and attaching it to the ground. The quantity and construction efficiency are severely changed, and the quality of shotcrete varies greatly depending on the characteristics of the casting equipment. Therefore, there are many difficulties in quality control and this causes the problem of poor performance.

As described above, the fasteners used as admixtures for concrete include water glass-based liquid quickeners and sodium aluminate-based liquid quickeners, and recently, alkali-free liquid quickeners used in Europe have been used. These liquid quickeners transfer liquid quickeners from the equipment pumping concrete to the liquid metering pump, mix them with concrete through the liquid quickener injection nozzle attached to the injection nozzle, and inject compressed air into the injection pressure. It is being constructed in a way that raises the level.

In the case of using the water glass-based liquid quickener of the prior art, not only the concrete that is not attached to the construction surface, that is, there are many rebounds, but also the long-term strength is reduced and the shotcrete is decomposed by the groundwater.

At present, sodium aluminate-based liquid quickener is mainly used to solve the problem of water glass liquid quickener. However, it is strong alkali. There was a problem that is reduced.

Moreover, since the liquid quickener consists of about 50% of water, the more water is used, the higher the proportion of water in the concrete. In the case of construction in the case of increasing the amount of fasteners rather than increase the flow of concrete, which makes the construction difficult, causing many problems in construction. Alkali-free fasteners, which have recently started to be used, are harmless to humans and have long-term strength, which enhances durability.However, in the case of liquid phase, as described above, they are sensitive to concrete slump and have a weak coagulation effect. Therefore, there was a problem that the construction is difficult when increasing the usage.

In order to overcome such a problem, a cement mineral-based fastener mainly composed of calcium aluminate, which is a kind of cement-constituting mineral, has been widely used.

Since cement mineral fasteners are mainly composed of cement minerals, they are less irritating and less harmful to the human body and have good condensation promoting effects. As the ratio of water in concrete is lowered, it has an excellent adhesive force, so it is not only excellent in workability in water, but also insensitive to slump of concrete.

As described above, cement mineral fasteners are widely used in the dry process because of their disadvantages of hardening in contact with water despite many advantages, but the construction conditions of the wet process are difficult to spread.

Therefore, special equipment is used to inject the powdery fastener, which is mixed with compressed air into the concrete that is transported for shotcrete injection because the fastener is powder and hardens itself upon contact with water. And mixing equipment has been developed and used.

This type of wet shotcrete using powder type fastener is applied to two construction systems according to the pressure feeding method. In the concrete conveying method, the air shot type is continuously conveyed by compressed air, and in general, it is similar to the concrete pump car. It is divided into pump pumping type to push concrete with piston.

As shown in FIG. 1, the pneumatic concrete pouring device is rapidly joined to a predetermined section before reaching the injection nozzle 12 of the concrete injection connection pipe 11 at the pressure of the air pressure pump 10. Combining the pipe (15) and connecting the fastener connecting pipe (16) of the powder supply device 14 to the injection of the compressed air formed in the compression pump 13 containing the fastener until the injection nozzle 12 As a device for mixing in the extended injection connection pipe (11), being constructed on a special rock at low pressure, there was a problem that the construction period is long and the efficiency is also lowered.

As shown in FIG. 2, the pump-feeding concrete pouring device reaches the compressed air confluence pipe 23 through the concrete transport pipe 21 and the concrete transport hose 22 through the concrete transported from the pressure pump 20. And, connected to one side of the compressed air confluence pipe 23 to disperse the concrete by the compressed air supplied from the air compression pump 24, through the transportation hose 22 at the pressure of the compressed air condensing confluence pipe (25) When it reaches, it is joined with the compressed air containing the quickener sent out from the powder supply device 26, the mixture is mixed in the concrete transport hose 22 and finally injected through the injection nozzle (27).

Here, mixing the compressed air in the compressed air confluence pipe (23) is to put the compressed air containing the fastener in the fastener confluence pipe (25) due to the viscosity of the concrete and the resistance of the transport pipe when the concrete is being conveyed It is not only difficult, but also causes a problem of uneven mixing, so the concrete is dispersed and transported into the air.

Such a wet shotcrete pouring device using the cement mineral fastener of the prior art is a device that performs precise construction at a relatively low speed compared to other equipment using a pump-feeding method, because the speed is low, the amount of concrete is increased, As concrete accumulates due to resistance in the pipe from the confluence pipe to the spray nozzle, high pressure is generated in the condensation pipe, and the water contained in the concrete or concrete flows back to the fastener transport hose side. There is a problem that the coating agent is not supplied smoothly because the coating is generated or blocked in the fastener transport hose and the fastener confluence pipe because the reaction is condensed.

In addition, the maximum pressure applied to the pulsation phenomenon in which the material supply is temporarily stopped at the moment when two pistons of the concrete pressure pump are alternated with each other is less than the pressure of the compressed air containing the fastener supplied to the fastener confluence pipe. Although it has been formed and overcomed, there was a problem in that, when the amount of conveyed concrete temporarily increased due to the pulsation phenomenon in which the pressure change was momentarily increased, the concrete backflow phenomenon occurred instantaneously and the coating phenomenon or the clogging phenomenon occurred.

In order to solve the countercurrent phenomenon, there is a method of increasing the pressure of the compressed air mixed with the fasteners introduced into the quickener confluence pipe, but there is a limit of the capacity of the air compression pump, and if the flow rate of the powder supply device is increased, As the dehumidification effect is lowered, moisture is introduced and the fastener is hardened in the hose, and the flow rate is increased so that material separation occurs in the extension hose, and the mixing efficiency is lowered. there was.

In order to solve the problems, the main purpose of the present invention is to supply concrete to the pumping pump of the concrete pumping unit by the pressure of the compressed air generated in the compressed air supply unit in the state of dispersing the primary while dispersing the concrete from the concrete dispersion unit In the pouring equipment, the distributed concrete is sprayed with a spray nozzle in the state of mixing the fastener supplied from the quickener supply unit with the pressure of compressed air and mixing it. Before reaching the spray nozzle to be sprayed, the injection ring is formed in the pipe to be injected into the concrete in the center of the air in a certain depth in the form of a pipe, and radially penetrates the outer circumference radially around the inner periphery to one side of the chamber While forming a plurality of injection holes formed at a constant inclination angle, Sealing the air chamber in the form of a ring and forming a casing for supplying compressed air to a conduit supply pipe formed in a tubular form communicating with the air chamber on one side and supplying the compressed air supplied to the confluence supply pipe to the injection hole inclined inside through the air chamber. By connecting the injection confluence pipe forming the vortex and supplying the compressed air to form the vortex generating part that generates the vortex in the concrete, the sprayed concrete flows down due to the injection pressure difference, or the rebounding performance decreases at low pressure. It minimizes the phenomenon, prevents the backflow caused by the pulsation phenomenon by providing a constant pressure just before injection, and increases the life of the pouring system by minimizing the solidification and narrowing of the fastener due to the backflow and the irregular pressure change.

In addition, another object of the present invention is to disperse the conveyed concrete to facilitate the mixing of the fasteners, the concrete dispersion unit, the quickener supply unit for joining the quickener supplied from the quickener feeder and the concrete and a predetermined interval radially on the outer periphery The injection hole is formed to supply compressed air to the inner side and is connected to the compressed air supply unit which supplies compressed air to the vortex generating unit that generates the vortex to supply compressed air. The pressure control valve and the pressure indicator are installed to install the compressed air. , To maintain the pressure within the most appropriate range according to the slump or aggregate state of the concrete, to maintain the balance of the pressure of the concrete dispersing part, the fastener supplying part and the vortex generating part at all times to reduce the pulsation phenomenon that suddenly changes the pressure, It improves the mixing of quickeners and is ideal for working conditions and materials. It is applied to improve construction efficiency.

In addition, another object of the present invention is to supply compressed air to the injection hole radially formed along the circumference of the outer periphery to form a vortex in the concrete dispersion portion formed to disperse the concrete to increase the mixing rate of the fasteners By forming an injection confluence pipe to inject toward the sprayed compressed air to create a vortex in the condensed concrete to disperse the concrete, to increase the mixing ratio of the dispersing agent is dispersed in a whirlwind form according to the vortex.

In addition, another object of the present invention is just before spraying the concrete mixed with the fastener to the injection hole of the injection confluence pipe formed in the concrete dispersion portion to increase the mixing ratio of the fastener by dispersing the concrete to form a vortex in the concrete It is formed larger than the injection hole of the injection confluence pipe forming the vortex in the vortex generating part, so that in the concrete dispersing part where the large injection hole is formed, the width of the vortex is widened to facilitate the mixing of the quickener and the short injection vortex in the small injection hole of the vortex generating part. By reducing the rebound in width and increasing the pressure, it can be easily injected to improve the injection efficiency, and the pressure of the compressed air is displaced according to the size of the injection hole, thereby adjusting the pressure according to the characteristics of dispersion and vortex generation to the size of the hole. Spraying by changing the pressure of concrete such as pulsation without affecting the spraying of concrete To increase efficiency.

In addition, another object of the present invention is to provide a pressure pipe connected to the pressure pump to apply pressure to the concrete to be fed, supply pipe connected to the pressure pipe to supply the concrete to the concrete dispersion unit, to mix the fastener to the concrete dispersed in the concrete dispersion unit The fastener mixture pipe is transported to the dispersing transport pipe and the dispersed concrete at the pressure of the compressed air supply unit under the pressure of compressed air, mixed, and displaced into the vortex in the vortex generating unit to supply the spray nozzle to the spray nozzle. It is to improve work efficiency by suggesting the conditions for efficiently mixing and spraying concrete fasteners by applying appropriately calculated and applied experiments several times under various conditions according to climate and working environment.

Such a wet shotcrete placing equipment system using the cement mineral filler of the present invention devised to achieve the object forms a pressure pump for spraying concrete to form a pressure pump to pump the concrete into the pressure pipe, the pressure pipe A transport pipe for transporting concrete is formed by passing through a supply pipe formed to supply concrete that is conveyed to the concrete. The spray nozzle is passed through a fastener mixture pipe formed to supply and mix a fastener to the concrete transported from the transport pipe. The concrete condensing unit formed to be sprayed, and the supply pipe and the wire-shaped confluence pipe formed by connecting the concrete condensing unit, the compressed air supply pipe is formed to connect the compressed air supply to the wire-shaped conduit pipe, the pressure to the other side of the compressed air supply pipe Compressed air by forming a pressure indicator to display and a pressure control valve to control the pressure Concrete dispersion unit formed to be distributed by supplying to the concrete, the transport pipe and the wire-shaped conduit for transporting the concrete dispersed in the concrete dispersion unit is formed by connecting, and connected to the compressed air supply pipe to supply the fastener at the pressure of the compressed air The fastener of the device is connected to the wire type conduit through the quickener supply pipe to form the fastener and compressed air into the concrete, and a pressure indicator indicating the pressure to the other side of the compressed air supply pipe and a pressure regulating valve to control the pressure. And forming a vortex by supplying it to the injection nozzle by connecting with a quick settlement supply unit which forms a vortex, and a rapid mixing mixture pipe which is supplied and mixed with the rapid settlement supply from the quick settlement supply unit and an injection confluence tube for generating a vortex. Connect the compressed air supply pipe for supplying compressed air to one side of the table, and express the pressure to the other side of the compressed air supply pipe. Compression is formed in the compressor by connecting the vortex generating unit with a pressure indicator and a pressure regulating valve to control the pressure, and a compressed air supply pipe and a connecting pipe to the concrete dispersing unit, the fastener supply unit and the vortex generating unit. Characterized in that it comprises a compressed air supply for supplying air.

In addition, the concrete dispersion unit is configured to connect the injection confluence pipe to form a confluence of the compressed air supplied from the compressed air supply pipe to the supply pipe for supplying concrete to generate and distribute the vortex in the concrete.

In addition, the injection-dispersion pipe of the concrete dispersion unit and the vortex generating unit forms an injection ring forming an air chamber in which air is injected at a predetermined depth in the center in the form of a tube, and radially external in a circumference at an inner circumference to one side of the air chamber. And a casing for supplying compressed air to a confluence supply pipe formed to communicate air to the inside of one side while sealing the air chamber in a ring shape while penetrating a plurality of injection holes formed at a predetermined inclination angle through the convex supply pipe. Compressed air is supplied to the injection hole is inclined therein through the air chamber is characterized in that configured to form a vortex.

In addition, by supplying compressed air to the injection confluence pipe of the concrete distribution unit to form an injection hole for generating a vortex to a large diameter to increase the amplitude of the vortex to form a low pressure, supply compressed air to the injection confluence pipe of the vortex generation unit The injection hole to generate the vortex with a small diameter to make the vortex amplitude denser and the pressure high to disperse the concrete in low pressure and large amplitude to increase the mixing ratio of the fastener and the high pressure and dense amplitude of the vortex generating part. Characterized in that configured to spray.

In addition, the concrete conveying unit forms a length of 1 ~ 10m of the supply pipe for supplying the concrete from the pressure pipe of the pressure pump pump to the concrete dispersion unit, the length of the transport pipe for transporting the concrete dispersed from the concrete dispersion to the fastener supply unit 1 It is formed to ~ 5m, characterized in that to form a length of 1 ~ 5m of the fastener mixture pipe to be mixed while conveying to the vortex generating unit is supplied with the fastener is supplied from the quickener supply unit.

In addition, the pressure of the air supplied from the compressed air supply unit is supplied to the concrete dispersion unit at a pressure of 2 ~ 5 kg / ㎠, and supplied to the rapid binder supply unit at a pressure of 3 ~ 6 kg / ㎠, vortex generation unit 0.5 Supplying at a pressure of ~ 3 kg / ㎠ characterized in that configured to reduce the pulsation and increase the fastener mixing efficiency.

Thus, looking at the preferred embodiment of the present invention configured with reference to the drawings as follows.

Figure 3 is a block diagram showing a wet shotcrete pouring equipment system using a cement mineral filler according to the present invention, Figure 4 shows a wet shotcrete pouring equipment system using a cement mineral filler according to the present invention. 5 is a cross-sectional view showing the shape of an injection confluence pipe, which is a main part of the wet shotcrete pouring equipment system using the cement mineral filler according to the present invention, and FIG. 6 is a cement mineral filler according to the present invention. AA is a cross-sectional view of an injection confluence pipe, which is a main component of a wet shotcrete pouring equipment system, and FIG. 7 illustrates an exploded state of an injection confluence pipe, which is a main component of a wet shotcrete pouring equipment system, according to the present invention. 8 is an exploded perspective view of the cement mineral filler according to the present invention. Is a cross-sectional view showing the operating state of the wet shotcrete placing equipment system.

As shown in Figures 3 to 5, the wet shotcrete placing equipment system 100 using the cement mineral quickener of the present invention is a concrete conveying unit 110 for applying pressure by applying pressure to the concrete, and the concrete conveying Concrete dispersion unit 120 is connected to the unit 110 and formed by joining and dispersing the compressed air to the concrete to easily mix the fastener, and compressed air to the concrete dispersed in connection with the concrete dispersion unit 120 A quickener supplying unit 130 for supplying a fastener, a vortex generating unit 140 connected to the quickener supplying unit 130 to supply compressed air to generate vortices, the concrete dispersion unit 120, a fastener It comprises a compressed air supply unit 150 for supplying compressed air to the supply unit 130 and the vortex generation unit 140.

The concrete pumping unit 110 forms a pumping pump 111 to pump the concrete to the pumping pipe 112 to form a pumping pressure for spraying the concrete, and is formed to supply the concrete pumped to the pumping pipe 112 Form a transport pipe 114 for transporting concrete through a supply pipe 113, and passes through a fastener mixing pipe 115 formed to supply and mix a fastener to the concrete transported from the transport pipe 114. It is configured to spray from the injection nozzle 116.

The concrete dispersion unit 120 connects and forms the supply pipe 113 and the wire-shaped confluence pipe 121 of the concrete compression unit 110, and the compressed air supply pipe 123 to supply compressed air to the wire-shaped confluence pipe 121. ) To form a connection, and to form a pressure indicator 125 to display the pressure to the other side of the compressed air supply pipe 123 and a pressure control valve 124 to control the pressure to supply compressed air to the concrete to be dispersed.

In this case, the concrete dispersing unit 120 is connected to the injection confluence pipe 122 to form a confluence of the compressed air supplied from the compressed air supply pipe 123 to the supply pipe for supplying concrete to generate and distribute the vortex inside the concrete Configure.

In addition, the concrete pumping unit 110 is preferably formed of a length of 1 ~ 10m of the supply pipe 113 for supplying concrete from the pumping pipe 112 of the pumping pump 111 to the concrete dispersion unit 120.

The fastener supply unit 130 is connected to the transport pipe 114 and the wire-shaped confluence pipe 133 for transporting the concrete dispersed in the concrete dispersion unit 120, is connected to the compressed air supply pipe 134 and the compressed air The fastener of the quickener supplying device 131 is connected to the wire-shaped confluence pipe 133 through the quickener supply pipe 132 at a pressure of about to form the fastener and compressed air to join the concrete, and the compressed air supply pipe 134 It is configured to form a pressure indicator 136 for displaying the pressure to the other side of the) and a pressure control valve 135 for adjusting the pressure.

At this time, it is preferable to form the length of the transport pipe 114 for transporting the concrete dispersed from the concrete dispersion unit 120 to the quickener supply unit 130 to 1 ~ 5m.

The vortex generating unit 140 is connected to an injection confluence mixing pipe 115 and a confluence injection conduit tube 141 to generate a vortex by supplying and mixing the quick condenser from the quick conveyor supply unit 130 to generate a vortex by spraying nozzles ( The pressure indicator 144 is formed to supply to the 116, connected to the compressed air supply pipe 142 for supplying compressed air to one side of the injection confluence pipe 141, and displays the pressure to the other side of the compressed air supply pipe 142. And a pressure regulating valve 143 for regulating pressure.

In this case, the injection confluence pipes 122 and 141 of the concrete dispersing unit 120 and the vortex generating unit 140 have an injection ring formed with air chambers 122b and 141b into which air is injected at a predetermined depth in the center in a pipe shape. And forming the plurality of injection holes 122c and 141c formed at a predetermined inclination angle while radially penetrating the outer circumference of the inner circumference to one side of the air chambers 122b and 141b. While sealing the seals (122b, 141b) in a ring shape to form a casing (122d, 141d) for supplying compressed air to the confluence supply pipes (122e, 141e) formed to communicate with the air to one side inside the confluence supply pipe (122e, Compressed air supplied to 141e is supplied to injection holes 122c and 141c which are inclined therein through air chambers 122b and 141b to form vortices.

In addition, by supplying compressed air to the injection confluence pipe 122 of the concrete dispersion unit 120 to form an injection hole (122c) for generating a vortex to a large diameter to form a low pressure while increasing the amplitude of the vortex, vortex By supplying compressed air to the injection confluence pipe 141 of the generation unit 140, an injection hole 141c for generating vortices is formed to a small diameter to form a high pressure while densifying the eddy current amplitude to form a low pressure and a large amount of concrete. It is preferable to disperse | distribute by amplitude, and to make it spray in the high pressure and dense amplitude of a vortex production | generation part while raising a ratio of a rapid mixing agent.

In addition, it is preferable to form the length of the quick-mixing mixer 115, which is supplied while the quick-setting agent is supplied from the quick-conductor supply unit 130 and mixed while being transferred to the vortex generating unit 140, 1 to 5 m.

The compressed air supply unit 150 is connected to the compressed air supply pipes 123, 134, 142 and the connection pipe 152 to the concrete dispersion unit 120, the quickener supply unit 130, and the vortex generation unit 140, and a valve ( 153 is configured to supply the compressed air formed in the compressor 151.

At this time, the pressure of the air supplied from the compressed air supply unit 150 is supplied to the concrete dispersion unit 120 at a pressure of 2 ~ 5 kg / ㎠, a pressure of 3 ~ 6 kg / ㎠ to the fastener supply unit 130 It is preferably supplied to the vortex generating unit 140 at a pressure of 0.5 to 3 kg / ㎠ to reduce the pulsation and to increase the fastener mixing efficiency.

Thus, look at the action of the wet shotcrete pouring equipment system using the cement mineral filler of the present invention configured as follows.

First, by operating the pump pump 111 of the concrete pumping unit 110, the concrete is formed by the pressure to the pressure pipe 112, and transported, the concrete pumped to the pump pipe 112 is connected to the supply pipe through the supply pipe 113 It is supplied to the concrete dispersion unit 120 is connected to 113.

At this time, it is preferable that the supply pipe 113 connected to the pressure pipe 112 of the concrete pumping unit 110 to supply concrete to the concrete dispersion unit 120 has a length of 1 to 10 m.

When the concrete supplied from the supply pipe 113 is supplied to the wire-shaped confluence pipe 121 of the concrete dispersion unit 120, the compressed air is supplied from the confluence supply pipe 121b formed at the side while being transferred from the concrete transport pipe 121a formed at the center. Disperses the concrete transported by the pressure of compressed air to reduce the viscosity and weakens the coagulation force inside the concrete to pass through while dispersing the concrete so that the fastener is effectively mixed.

At this time, the compressed air supplied to the confluence supply pipe 121b maintains the pressure at the pressure control valve 124 at 2 to 5 kg / cm 2 while the compressed air generated by the compressed air supply unit 150 is displayed by the pressure indicator 125. Connected to the compressed air supply pipe 123 as much as possible to minimize pulsation and concrete narrowing and condensation.

In addition, by connecting the injection confluence pipe 122 of the concrete dispersion unit 120 to the supply pipe 113, the compressed air is connected to the compressed air supply pipe 123 from the compressed air supply unit 150 to the casing (122d) When supplied to the air chamber 122b through the confluence supply pipe 122e formed, the vortex is formed while passing through the injection hole 122c formed at a predetermined inclination angle while radially penetrating the outside at the inner circumference to one side of the air chamber 122b. Thus, by supplying compressed air with vortex in the concrete, the concrete may be efficiently dispersed to form a suitable condition for the mixing of the fastener.

In addition, by forming the injection hole 122c in the injection conduit 122 formed in the concrete injection hole 120 to a large diameter to increase the amplitude of the vortex to form a low pressure to supply the vortex of a large amplitude at low pressure to the concrete It is preferable to disperse the concrete so that the mixing ratio of the fastener is increased.

As described above, when the dispersed concrete passing through the concrete dispersion unit 120 is supplied to the wire-shaped confluence pipe 133 of the quickener supply unit 130 through the connected transport pipe, the concrete is transferred to the concrete transport pipe 133a formed at the center. The condensed supply pipe 133b communicated to one side while being fed to supply a mixture of compressed air and a fastener to join the fastener to be mixed with the pressure of the compressed air to the concrete.

At this time, the mixture of the fastener and the compressed air supplied to the confluence supply pipe (133b) is the compressed air generated by the compressed air supply unit 150 is displayed by the pressure indicator 136, the pressure is adjusted to the pressure control valve 135 3 ~ 6 Connected to the supply system for supplying fasteners 131 to supply compressed air to the compressed air supply pipe 134 so as to be maintained at kg / cm 2, and supply the mixed feeder and compressed air from the fastener supplying device 131. Supply to the payment supply pipe 132 to prevent pulsation and backflow to minimize coagulation and stenosis of the settlement.

In addition, the transport pipe 114 for transporting the concrete dispersed in the concrete dispersion unit 120 to the fastener supply unit 130 is preferably formed to have a length of 1 ~ 5m.

In this way, the fastener supply unit 130 joins the fastener with the pressure of the mixed air to the concrete and passes through the fastener mixing tube 115 while the fastener is mixed in the concrete injection injection pipe of the vortex generating unit 140 141 is connected to the compressed air supply pipe 142 from the compressed air supply unit 150 to supply the compressed air to the air chamber 141b through the confluence supply pipe 141e formed in the casing 141d. The vortex is generated while passing through the injection hole 141c formed at a predetermined inclination angle while radially penetrating the outer circumference radially at the inner circumference to one side of the side 141b to supply compressed air in which the vortex is formed in the concrete, thereby mixing the concrete with the fastener. As it is injected into the injection nozzle 116 in the state formed by the vortex and injected into the vortex, the rebound is minimized to improve the injection efficiency.

At this time, the compressed air supplied to the confluence supply pipe (141e) is maintained by the pressure control valve 143 while the compressed air generated by the compressed air supply unit 150 is displayed by the pressure indicator 144, 0.5 ~ 3 kg / ㎠ Connected to the compressed air supply pipe 142 as possible to minimize pulsation and concrete narrowing and condensation.

In addition, by forming the injection hole 141c in the injection conduit 141 formed in the vortex generating unit 140 to a small diameter, the vortex of the amplitude is dense and the pressure is formed high, so that the vortex of the dense amplitude with a strong pressure is injected. It is preferable to supply to the nozzle side to reduce the rebound amount to increase the injection efficiency.

In addition, it is preferable that the rapid mixing mixture 130, the rapid mixing agent is joined to convey the vortex generating unit 140 while mixing the concrete mixing agent 115 is preferably formed in a length of 1 ~ 5m.

As described above, the experiment of the wet shotcrete pouring equipment system using the cement mineral quickener of the present invention in accordance with various embodiments is as follows.

Example 1.

The injection hole size is 14mm and the number of holes is 8mm. The injection hole size of the vortex generating part is 9mm and 10 pieces are used.The confluence supply pipe of the fastener supply part is 20A and the angle is 22.5. The construction of the concrete transport hose and compressed air under various changes is as follows.

Experimental number Concrete transport hose length (m) Compressed Air Pressure (kg / ㎠) Supply pipe Pipeline Rapid Payment Mixer Dispersion Pressure Indicator Quick payment supply pressure indicator Eddy Current Pressure Indicator One 0.5 0.5 5.0 1.5 6.0 0.5 2 0.5 1.0 4.0 1.5 6.0 1.5 3 0.5 1.5 3.0 2.0 5.0 2.5 4 1.0 1.0 4.0 2.0 4.5 3.0 5 1.0 1.0 3.5 2.0 5.5 2.5 6 1.0 1.5 3.0 2.5 5.0 2.0 7 1.5 1.0 4.0 2.5 4.5 1.5 8 1.5 1.5 3.5 2.5 5.0 1.5 9 1.5 1.5 3.0 2.5 5.5 1.0 10 1.5 2.0 2.5 3.0 5.0 0.5 11 2.0 1.0 4.0 3.0 4.5 1.0 12 2.0 1.0 3.0 4.0 5.0 1.5 13 2.5 1.5 2.0 4.0 4.0 2.0 14 2.5 2.0 1.0 5.0 3.0 3.0

According to the experimental value number formed in Table 1, the dust state, the degree of pulsation, the rebound state, and the result of the test of the state of the fastener injection state and the shotcrete curing state are as follows.

In the following Table 2, when the construction state is excellent, ◎, good case ○, normal case △, it is represented by X in case of poor.

Injection Pulsation degree Dust level Rebound state Quick payment state Shotcrete Curing State One X X X X Y-type conduit blockage X 2 X X X X Y-type conduit blockage △ 3 △ △ △ △ Y-type conduit scale generation △ 4 △ △ △ △ ○ ○ 5 △ △ ○ △ ○ ○ 6 △ △ ○ △ ○ ○ 7 △ △ ○ △ ○ ○ 8 ◎ ◎ ◎ ◎ ◎ ◎ 9 ○ ◎ ○ ◎ ◎ ◎ 10 △ △ ○ △ ○ ○ 11 △ △ △ △ ○ ○ 12 △ △ △ △ Y-type conduit scale generation △ 13 X X X X Y-type conduit blockage X 14 X X X X Y-type conduit blockage X

Example 2.

The angle of confluence supply pipe is formed to be 40A with the angle of 25 ° by using the wire-shaped confluence pipe of the concrete dispersion part. Forming the angle of 22.5 and varying the pressure of the concrete transport hose and compressed air construction by looking at Table 3 below.

Concrete transport hose length (m) Compressed Air Pressure (kg / ㎠) Supply pipe Pipeline Rapid Payment Mixer Dispersion Pressure Indicator Quick payment supply pressure indicator Eddy Current Pressure Indicator One 0.5 6.0 5.0 1.5 6.0 0.5 2 0.5. 5.0 4.0 1.5 5.5 1.5 3 0.5 4.0 3.0 2.0 5.0 2.5 4 0.5 3.0 4.0 2.5 4.5 3.0 5 1.0 4.0 3.0 2.0 5.5 2.5 6 1.0 3.5 3.5 2.5 5.0 2.0 7 1.0 3.0 4.0 2.5 4.5 1.5 8 1.0 2.5 3.5 2.5 5.0 1.5 9 1.5 2.0 3.0 2.5 5.5 1.0 10 1.5 3.0 2.0 3.0 5.0 0.5 11 2.0 2.0 4.0 3.0 4.5 1.0 12 2.0 1.5 3.0 4.0 5.0 1.5

According to the experimental value number formed in Table 3, the dust state, the degree of pulsation, the rebound state, and the result of the test of the state of the fastener injection state and the shotcrete curing state are as follows.

In the following Table 4, when the construction state is excellent, ◎, good ○, normal △, it is represented by X in the case of poor.

Injection Pulsation degree Dust level Rebound state Quick payment state Shotcrete Curing State One X X X X Y-type conduit blockage X 2 X X X X Y-type conduit blockage X 3 X X △ △ ○ ○ 4 X X ○ ○ ○ ○ 5 ○ ○ ○ ◎ ◎ ◎ 6 ◎ ◎ ◎ ◎ ◎ ◎ 7 ○ ○ ◎ ◎ ◎ ◎ 8 △ △ ○ ○ ◎ 9 △ △ ○ ○ ○ ○ 10 △ △ ○ △ Y-type conduit scale generation ○ 11 X X X △ Y-type conduit scale generation ○ 12 X X X △ Y-type conduit scale generation △

Example 3.

Concrete transport hose and compressed air pressure proper length (supply pipe 113: 1.5m, transport pipe 114: 1.2m, fastener mixture pipe 115: 3.5m) and pressure (dispersion pressure gauge 125): 2.5kg / ㎠, fastener supply pressure indicator (136): 5.0kg / ㎠, vortex generation pressure indicator (144): 1.5kg / ㎠) and the injection confluence pipe and vortex confluence pipe Looking at the construction by changing according to the type is shown in Table 5.

Injection conduit pipe of the concrete dispersion part Injection confluence pipe of vortex generation part Y-type joining pipe Hole size Hole size (mm) Hole size Hole size (mm) Rapid payment supply pipe size (A) Quick payment supply pipe angle (degrees) One 4 18 6 14 15 20 2 6 16 8 12 20 25 3 8 14 10 10 20 22.5 4 8 12 12 8 25 25 5 10 14 14 4 25 30

According to the experimental value number formed in Table 5, the dust state, the degree of pulsation, the rebound state, and the result of the test of the state of the fastener injection state and the shotcrete curing state are as follows.

In the following Table 6, when the construction condition is excellent, ◎, good case ○, normal case △, it is represented by X in case of poor.

Injection Pulsation degree Dust level Rebound state Quick payment state Shotcrete Curing State One △ △ △ △ Y-type conduit scale generation △ 2 ○ ○ ○ ◎ ◎ ◎ 3 ◎ ◎ ◎ ◎ ◎ ◎ 4 ○ ○ ○ ◎ ◎ ◎ 5 △ △ △ △ ○ ○

Example 4 (Comparative Examples 1-4, Example)

Table 1 shows the construction of Comparative Example 1 to 4, which was performed with the shotcrete placing system of the prior art shown in FIG. Looking through 7 is as follows.

Concrete transport hose length (m) Compressed Air Pressure (kg / ㎠) Concrete dispersion Eddy Current Generation Department Supply pipe Pipeline Rapid Payment Mixer Dispersion pressure Fastener pressure Vortex pressure Injection conduit Injection conduit Comparative Example 1 1.5 7.0 3.0 6 4.5 - - - Comparative Example 2 1.5 6.0 2.0 5 4.5 - - - Comparative Example 3 1.5 5.0 1.0 4 5.0 - - - Comparative Example 4 1.5 3.0 1.0 3 5.0 - - - Example 1 1.5 1.5 3.5 2.5 5.0 1.5 use use

According to the experimental value number formed in Table 7, the dust state, the degree of pulsation, the rebound state and the state of the rapid binder injection state and the shotcrete curing state are as follows.

In the following Table 8, when the construction state is excellent ◎, good ○, normal △, it is represented by X in the case of poor.

Injection Pulsation degree Dust level Rebound state Quick payment state Shotcrete Curing State Comparative Example 1 X X X X Y-type conduit blockage X Comparative Example 2 X X X X Y-type conduit blockage X Comparative Example 3 X X X X Y-type conduit blockage X Comparative Example 4 △ △ △ X Y-type conduit scale generation X Example 1 ◎ ◎ ◎ ◎ ◎ ◎

 As such, the wet shotcrete equipment system using the cement mineral filler of the present invention is configured to supply concrete to the pumping pump of the concrete pumping unit with the pressure of the concrete pumping unit while joining the compressed air generated by the compressed air supply unit from the concrete dispersion unit to the concrete. Firstly, through the distribution pipe in the dispersed state, the dispersed concrete is sprayed with a spray nozzle in the state of mixing the quickener supplied from the quickener supply unit with the compressed air pressure and spraying it with shot nozzles In the system, an injection ring is formed in which the air chamber is injected with a certain depth in the center in the form of a pipe in the concrete to be conveyed before reaching the spray nozzle to which the concrete is injected, and the circumference of the inner circumference to one side of the air chamber Phosphorus formed with a constant inclination angle while radially penetrating with the outside A plurality of shunt holes are formed to penetrate, and the air chamber is sealed in a ring shape, and a casing for supplying compressed air is formed in a conduit supply pipe formed in a tubular form communicating with the air chamber on one side. By connecting the injection conduit forming the vortex while supplying to the injection hole formed obliquely through the through to supply compressed air to form a vortex generating unit to generate the vortex in the concrete, the sprayed concrete flows down due to the difference in the injection pressure or Minimizes the rebound phenomenon that deteriorates the adhesion performance at low pressure, prevents backflow due to pulsation by providing a constant pressure just before injection, and minimizes solidification and narrowing of the fastener due to backflow and irregular pressure change. It provides the effect of increasing the life of the pouring system.                     

In addition, the wet shotcrete equipment system using the cement mineral fastener of the present invention is a concrete dispersion unit for dispersing the conveyed concrete to facilitate the incorporation of the fasteners, the fasteners supplied from the fastener supplying device and the concrete Pressure injection to the compressed air supply part connected to the compressed air supply part which supplies compressed air to the vortex generating part that supplies the compressed air to the inner side to generate the vortex by supplying compressed air radially at a predetermined interval in the payment supply part and the outer periphery By installing a valve and a pressure indicator to maintain the pressure within the most appropriate range according to the condition of the equipment, the slump or aggregate of concrete, etc., the pressure of the concrete dispersing part, the fastener supply part, and the vortex generation part is always maintained and rapidly changed. Reduced pressure pulsation and mixed phase of rapidener Improve the, and provides the most effective to improve construction efficiency, ideal for applying to the state of working conditions and materials.

In addition, the wet shotcrete equipment system using the cement mineral quickener of the present invention is radially injected along the circumference of the outer periphery to form a vortex in the concrete dispersion formed to disperse the concrete to increase the mixing rate of the fastener By supplying compressed air to the hole and forming an injection confluence pipe for spraying toward the center, the compressed air is injected into the condensed concrete so that the vortex is generated to disperse the concrete. Provides an effect of increasing the ratio.

In addition, the wet shotcrete equipment system using the cement mineral quickener of the present invention is formed in the concrete dispersion portion to disperse concrete to increase the mixing rate of the fastener is formed in the injection hole of the injection conduit to form a vortex in the concrete In the concrete dispersing part where the large injection hole is formed, widen the width of the vortex to facilitate the rapid mixing of the vortex. In the small injection hole of the generator, the shorter vortex width reduces the rebound, increases the pressure, and easily injects to improve the injection efficiency. Also, the pressure of the compressed air is displaced according to the size of the injection hole. By adjusting the pressure according to the characteristics to the size of the hole, the pressure Even if the change does not affect the spraying of concrete, it provides an effect of increasing the spraying efficiency.

In addition, the wet shotcrete equipment system using the cement mineral filler of the present invention is connected to the pumping pump for applying pressure to the pumped concrete, the supply pipe is connected to the pumping pipe to supply concrete to the concrete dispersion unit, in the concrete dispersion unit Dispersion transport pipe for transporting the mixing agent to the dispersed concrete and the mixing agent to the dispersed concrete in the rapid supply unit supplying the compressed material at the pressure of the compressed air to displace the vortex in the vortex generating unit to supply to the injection nozzle The length of the fastener mixture pipe is properly calculated and applied through experimental values which have been tested several times under various conditions according to pressure, climate, and working environment. Provides the effect of improving efficiency.

Claims (6)

In order to spray the concrete to form a pumping pressure to form a pumping pump 111 to feed the concrete to the pumping pipe 112, and through the supply pipe 113 formed to supply the concrete pumped to the pumping pipe 112 Forming a transport pipe 114 for transporting concrete, and sprayed from the injection nozzle 116 through a fastener mixture pipe 115 formed to supply and mix the fastener to the concrete transported from the transport pipe 114 Concrete pressing unit 110 and formed to, The supply pipe 113 and the wire-shaped confluence pipe 121 of the concrete compression unit 110 are connected and formed, and the compressed air supply pipe 123 is connected and formed to supply compressed air to the wire-shaped confluence pipe 121, and is compressed. A concrete dispersing unit 120 formed to disperse the compressed air by supplying compressed air to the concrete by forming a pressure indicator 125 indicating a pressure to the other side of the air supply pipe 123 and a pressure control valve 124 to control the pressure; The transport pipe 114 and the wire-shaped conduit pipe 133 for transporting the dispersed concrete in the concrete dispersion unit 120 is connected and formed, connected to the compressed air supply pipe 134 and the rapid supply of the supply of compressed air at the pressure of the compressed air The fastener of 131 is connected to the wire-shaped confluence pipe 133 through the fastener supply pipe 132 to form the fastener and compressed air into the concrete, and displays the pressure to the other side of the compressed air supply pipe 134. And a fastener supply unit 130 formed with a pressure indicator 136 and a pressure control valve 135 to control the pressure, The compressed air supply pipes 123, 134, 142 and the connection pipe 152 are connected to the concrete dispersing unit 120, the fastener supply unit 130, and the vortex generation unit 140, and the compressor 134 is controlled by the control of the valve 153. In the shotcrete placing equipment system comprising a compressed air supply unit 150 for supplying the compressed air formed in the 151, It is formed to supply to the injection nozzle 116 by generating a vortex by connecting with the injection mixing pipe 115 and the injection confluence pipe 141 to produce a vortex, which is supplied and mixed by the rapid settlement supply unit 130 , The pressure air supply pipe 142 is formed to connect the compressed air supply pipe 142 for supplying compressed air to one side of the injection confluence pipe 141, the pressure indicator 144 for displaying the pressure to the other side of the compressed air supply pipe 142 and the pressure to control the pressure Wet shotcrete pouring equipment system using a cement mineral filler, characterized in that consisting of a control valve (143). delete The method of claim 1, The injection confluence pipes 122 and 141 of the concrete dispersion unit 120 and the vortex generating unit 140 have an injection ring 122a which forms air chambers 122b and 141b into which air is injected at a predetermined depth in the center in a pipe shape. , 141a, a plurality of injection holes 122c and 141c formed at a predetermined inclination angle while radially penetrating the outer circumference at an inner circumference to one side of the air chambers 122b and 141b, and a plurality of air chambers The casings 122d and 141d for supplying compressed air to the confluence supply pipes 122e and 141e formed to communicate with each other to supply air to the inside of one side while sealing the rings 122b and 141b to form the confluence supply pipes 122e and 141e are formed. Wet shotcrete pouring equipment using cement mineral fillers, characterized in that configured to form a vortex while being supplied to the injection hole (122c, 141c) formed inclined inside through the air chamber (122b, 141b) supplied to the system. The method according to claim 1 or 3, By supplying compressed air to the injection confluence pipe 122 of the concrete dispersion unit 120 to form an injection hole 122c for generating a vortex to a large diameter to form a low pressure while increasing the amplitude of the vortex, the vortex generating unit By supplying compressed air to the injection confluence pipe 141 of 140 to form an injection hole 141c for generating vortices with a small diameter to form a high pressure while densifying the eddy current amplitude, the concrete is formed at a low pressure and a large amplitude. A wet shotcrete equipment system using cement mineral fillers, characterized in that configured to be dispersed and sprayed at high pressure and dense amplitude of the vortex generating portion while increasing the ratio of the quickener mixture. The method of claim 1, The concrete pumping unit 110 forms a length of the supply pipe 113 for supplying concrete from the pumping pipe 112 of the pumping pump 111 to the concrete dispersion unit 120 to 1 ~ 10m, concrete dispersion unit 120 ) To form a length of 1 ~ 5m of the transport pipe 114 for transporting the concrete dispersed in the quickener supply unit 130, the rapid binder is supplied from the quickener supply unit 130 is transferred to the vortex generation unit 140 The wet shotcrete equipment system using cement mineral fillers, characterized in that to form a length of 1 ~ 5m of the mixer mixture pipe 115 to mix while mixing. The method of claim 1, The pressure of the air supplied from the compressed air supply unit 150 is supplied to the concrete dispersion unit 120 at a pressure of 2 ~ 5 kg / ㎠, and supplied to the fastener supply unit 130 at a pressure of 3 ~ 6 kg / ㎠ And wet shotcrete pouring equipment system using cement mineral quickener, characterized in that configured to reduce pulsation and increase quickener mixing efficiency by supplying the vortex generating unit 140 at a pressure of 0.5-3 kg / cm2. .

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