KR20240059423A - Insulation finishing material injection system - Google Patents

Abstract

An insulation finishing material construction spraying system is disclosed. The insulation finishing material construction spraying system of the present invention includes a spray nozzle for spraying a fiber insulation material, a base material, and a hardener, respectively; A supply device that supplies fiber insulation to a spray nozzle; a first pump supplying subject matter to the nozzle; And a second pump that supplies a hardener to the injection port, wherein the injection port includes: a spray pipe that sprays the fiber insulation material forward; A plurality of first nozzles disposed along the circumference of the injection pipe and spraying the subject matter forward; and a plurality of second nozzles disposed along the circumference of the injection pipe and spraying the curing agent forward.

Description

Insulation finishing material construction spraying system {INSULATION FINISHING MATERIAL INJECTION SYSTEM}

The present invention relates to a spraying system for applying an insulating finishing material, and more specifically, to a spraying system for applying an insulating finishing material that simultaneously sprays a liquid adhesive and an inorganic material to form an insulating finishing material.

Binder was developed as an epoxy binder until the 1980s (first stage), a solvent-based binder until the 1990s (second stage), and a solvent-free/eco-friendly binder in the 2000s (third stage). Currently, it is the fourth stage and is a high-performance/high-performance binder. A durable binder requires performance such as water resistance, quick drying, heat resistance, and high durability.

In addition, pollution problems and oil resource problems that emerged globally in the 1970s, and global environmental problems in the 1990s had a significant impact on the binder and binder product production industry, and interest in solvent-free binders as a pollution-free binder increased. It has been done. Binder using existing organic solvents had the disadvantage of requiring post-processing, such as residual solvents. In addition, there was a major environmental problem of having to separate and dispose of solvents during the production process.

In addition to environmental concerns, legislation has recently been implemented banning the use of flammable finishing materials. According to the Building Act, which has been in effect since November 2019, the use of combustible finishing materials is prohibited in buildings with three stories or more, and insulation materials higher than semi-non-combustible are required. However, due to technical issues, it is still difficult to develop products higher than semi-non-combustible and thus difficult to apply. This is the situation.

Products that are sprayed on the exterior walls of buildings and on the ceiling of the lowest or top floor to act as insulators and sound absorbers include perlite and rock wool spray. Although these have some sound absorption functions, they are ineffective in terms of insulation and are harmful to the environment and the human body. The use of these banned raw materials is subject to legal restrictions.

Accordingly, urethane spray coating has been used recently. Although urethane spray coating has excellent sound absorption and insulation effects, it has the disadvantage of generating a large amount of harmful gases in the event of a fire, causing serious casualties. Accordingly, in the case of buildings, insulation materials higher than semi-non-combustible are required, but it is still difficult to develop products higher than semi-non-combustible due to technical issues.

Meanwhile, artificial mineral fiber insulation materials such as glass wool and mineral wool, including glass fiber, are used as thermal insulation, insulation, and sound insulation materials in various industrial fields, including ships.

However, most of these are in board or panel form and are not used as a spray method. This is because these fiber insulation materials do not adhere well to the surface of concrete or steel structures, so they cannot be attached directly by spraying. In this case, the shape and structure of the ceiling with multiple pipes and ducts is very complex and diverse, so the boards and panels have many shape restrictions, making it difficult to apply appropriate insulation and flame retardant finishing structures.

Therefore, while it is possible to work by spraying using artificial mineral fiber insulation, which is a flame retardant material, materials with insulating properties such as artificial mineral fiber insulation can be firmly attached to the surface of concrete or steel structures, and ceilings with complex shapes and structures can be installed. The development of a device that can be easily transported at a construction site is required to facilitate spraying.

Republic of Korea Patent Publication No. 1605492 (Registration date: 2016.03.16)

The purpose of the present invention is to provide insulation that can be worked using a spray method using artificial mineral fiber insulation, which is a flame retardant material, while also allowing a material with insulating properties, such as artificial mineral fiber insulation, to be firmly attached to the surface of concrete or a steel structure. It provides a finishing material construction spraying system.

In addition, to facilitate spraying work on ceilings with complex shapes and structures, we provide a spray system for applying insulation finishing materials that allows workers to easily move and use them without restrictions on space or environment.

The above object is, according to the present invention, a nozzle for spraying the fiber insulation material, the base material, and the hardener, respectively; A supply device for supplying fiber insulation to the injection hole; a first pump supplying a subject to the injection port; And a second pump that supplies a hardener to the injection port, wherein the injection port includes: a spray pipe that sprays the fiber insulation material forward; a plurality of first nozzles disposed along the circumference of the injection pipe and spraying the subject matter forward; and a plurality of second nozzles disposed along the circumference of the injection pipe and spraying the curing agent forward.

The plurality of first nozzles include an 11th nozzle and a 12th nozzle forming an angle of 180 degrees with each other about the injection pipe, and the plurality of second nozzles sequentially form an angle of 90 degrees with each other about the injection pipe. It may include a 21st nozzle, a 22nd nozzle, a 23rd nozzle, and a 24th nozzle.

The 11th nozzle forms an angle of 45 degrees with the 21st nozzle and the 22nd nozzle with the injection pipe as the center, and the 12th nozzle forms an angle with the 23rd nozzle and the 24th nozzle with the injection pipe as the center. Each can be formed to form an angle of 45 degrees.

The injection port is coupled to the outer surface of the injection pipe and includes an annular block to which the plurality of second nozzles are coupled, and the annular block has a hardener inside the 21st nozzle, the 22nd nozzle, and the 23rd nozzle. And it can be formed to form a flow path moving to the 24th nozzle.

The end of the second hose through which the hardener moves from the second pump may be connected to the flow path.

The injection port includes a plurality of bodies each coupled to an outer surface of the injection pipe and to which the first nozzles are each detachably coupled; a plurality of seal members inside the bodies, each in close contact with the first nozzles to block leakage of the main body; And it may include a plurality of fastening members that couple the end of the first hose through which the subject moves from the first pump to the bodies.

The supply device includes a pulverizing unit that crushes the supplied fiber insulation material with a plurality of rotating blades; A transfer unit that transfers the fiber insulation material dropped from the crushing unit to a screw; and an inlet and an outlet through which the air of the blower enters and exits are formed in a straight line, and a transport part that transports the fiber insulation material dropped from the transport part to the outlet by the air of the blower.

The supply device may further include a propeller that rotates at high speed between the transfer unit and the transport unit to crush the fiber insulation material.

The supply device may further include an air nozzle that supplies air between the transfer unit and the transport unit to disperse the fiber insulation material.

The transport unit may further include an impeller that rotates a plurality of blades and transports the fiber insulation material dropped from the transfer unit in a fixed amount between the inlet and the outlet.

The grinding part is opened upward, and a shelf through which fiber insulation is supplied is provided around one side of the opening, and the plurality of rotating blades rotate in opposite directions on the screw and are located on opposite sides of the screw in a plan view. a first rotating blade and a second rotating blade; and a third rotary blade that is provided on the opposite side of the lathe and rotates with respect to the screw in a plan view.

The first rotary blade may be provided on the opposite side of the lathe relative to the screw in a plan view and rotate in the opposite direction from the third rotary blade.

The subject matter includes Poly Vinyl Alcohol (PVA) and Acryl polymer, and the hardener may include Borax.

A mixture of the base material and the curing agent is used as a binder composition for spraying the fiber insulation material, and the binder may be an aqueous emulsion binder.

The acryl polymer may contain one or more monomers selected from the group consisting of Ethyl acrylate, Butyl acrylate, 2-Ethylhexyl acrylate, Acrylic acid, and Methacrylic acid.

The PVA may be a combination of one or more selected from the group consisting of Group A with a degree of polymerization of 200 to 800, Group B with a degree of polymerization of 1300 to 2000, and Group C with a degree of polymerization of 2100 to 2700.

Group A may be included in an amount of 5 to 6.5 parts by weight, Group B may be included in an amount of 1.0 to 1.7 parts by weight, and Group C may be included in an amount of 1.0 to 1.7 parts by weight.

According to the present invention, the first nozzle for spraying the main agent forward and the second nozzle for spraying the hardener forward are disposed along the circumference of the spray pipe for spraying the fiber insulation material forward, thereby mixing the spray adhesive and the fibrous inorganic material. Not only can a spray-type insulation material be formed directly on site, but the thickness and area of the insulation can be freely adjusted, making it possible to provide an insulation finishing material construction spraying system that facilitates on-site response according to the design of the building.

In addition, by being composed of a supply device, a first pump, a second pump, and a nozzle, people can easily move and use it without restrictions on space or environment, so there are no restrictions on the use of the building, regardless of the diversity in the application of each structure. It is possible to provide a spray system for installing insulation finishing materials that enables construction to achieve performance that meets the required performance.

Figure 1 is a diagram showing a spray system for applying insulation finishing materials according to an embodiment of the present invention.
Figure 2 is a diagram showing the use state of the insulation finishing material construction spraying system of Figure 1.
Figure 3 is a front perspective view of the supply device of the insulation finishing material construction spraying system of Figure 1, showing the pulverizing part, the conveying part, the propeller, and the conveying part.
Figure 4 is a front perspective view of the supply device of the insulation finishing material construction spraying system of Figure 1, showing the pulverizing part, the conveying part, the air nozzle, and the conveying part.
Figure 5 is a plan view of the supply device of the insulation finishing material construction spraying system of Figure 1, showing a shelf and a grinding unit.
Figure 6 is a side perspective view of the supply device of the insulation finishing material construction spraying system of Figure 1, showing the shelf, grinding part, conveying part, and conveying part.
Figure 7 is a perspective view showing the injection port of the insulation finishing material construction spraying system of Figure 1.
Figure 8 is a plan view showing the injection port of the insulation finishing material construction spraying system of Figure 1.
Figure 9 is a cross-sectional view of the injection port of Figure 7, showing the second nozzle and the annular block.
Figure 10 is a cross-sectional view of the injection port of Figure 7, showing the first nozzle and the guide module.
Figure 11 is a diagram showing the use state of the injection nozzle of Figure 7.
Figure 12 is a reaction formula schematically showing the chemical reaction between borax and PVA.
Figure 13 is a schematic diagram schematically showing the internal structure of an insulating finishing material according to an embodiment of the present invention.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the attached drawings. However, in describing the present invention, descriptions of already known functions or configurations will be omitted to make the gist of the present invention clear.

The spraying system for applying insulation finishing material of the present invention can be applied by spraying using artificial mineral fiber insulation, which is a flame retardant material, and can also firmly attach materials with insulating properties, such as artificial mineral fiber insulation, to the surface of concrete or steel structures. It is done so that it can be done.

In addition, the spraying system for applying insulation finishing materials of the present invention is designed so that workers can easily move and use it without restrictions on space or environment to facilitate spraying work on ceilings with complex shapes and structures.

Figure 1 is a diagram showing a spray system 10 for applying insulation finishing materials according to an embodiment of the present invention. Figure 2 is a diagram showing the use state of the insulation finishing material construction spraying system 10 of Figure 1.

The insulation finishing material construction spraying system 10 according to an embodiment of the present invention is configured to form the insulation finishing material 4 by simultaneously spraying a liquid adhesive and an inorganic material. Here, the liquid adhesive may refer to a binder composition for spraying fiber insulation material (1). And the inorganic material may refer to artificial mineral fiber insulation (1).

That is, the insulation finishing material (4) according to an embodiment of the present invention includes a binder composition for spraying the artificial mineral fiber insulation (1) and the artificial mineral fiber insulation (1), and is sprayed on the surface to be adhered, such as the ceiling (8) of a building. It forms a finishing material.

When the artificial mineral fiber insulation material (1) and the binder composition are sprayed to form a mixture, this soon becomes the finishing material and the construction is completed. The binder composition includes a base material (2) and a curing agent (3). The base material (2) and the hardener (3) are each sprayed and then mixed to form a binder composition.

As shown in FIG. 2, the surface to be adhered may refer to the area where the insulation finishing material (4) is installed, such as the column (6), beam (7), and ceiling (8) of the building. Additionally, it may refer to the ceiling of an underground parking lot of a building such as an apartment, building, or multi-family house. In addition, it may refer to the lower part of the roof of a wooden house and the insulation finish area of the wall of a wooden house.

As shown in Figure 1, the insulation finishing material construction spraying system 10 according to an embodiment of the present invention includes a supply device 100, a first pump 200, a second pump 300, and an injection port 400. do.

The first pump 200 is configured to supply the main agent 2 to the injection port 400. The first pump 200 may be an airless pump. The first pump 200 supplies the main agent 2 to the injection port 400 through the first hose 210.

Subject (2) can be stored in a separate container. The first hose 210 is provided as a high pressure hose. To facilitate movement of the nozzle 400 within the building, the length of the first hose 210 may be approximately 50 to 100 m.

The second pump 300 supplies the hardener 3 to the injection port 400. The second pump 300 may be an airless pump. The second pump 300 supplies the hardener 3 to the injection port 400 through the second hose 310.

The hardener (3) may be stored in a separate container. The second hose 310 is provided as a high pressure hose. To facilitate movement of the spray nozzle 400 within the building, the length of the second hose 310 may be approximately 50 to 100 m.

As shown in FIG. 1, the supply device 100 is configured to supply the fiber insulation material 1 to the injection port 400. Here, the fiber insulation material 1 includes glass fiber, glass wool, and mineral wool.

The supply device 100 supplies the fiber insulation material 1 to the injection port 400 through the third hose 160. The third hose 160 is provided as an anti-static hose. To facilitate movement of the nozzle 400 within the building, the length of the third hose 160 can be adjusted from 10 to 150 m depending on the site situation. And the inner diameter of the third hose 160 can be approximately 45 to 65 mm. there is.

FIG. 3 is a front perspective view of the supply device 100 of the insulation finishing material construction spraying system 10 of FIG. 1, showing the pulverizing section 120, the conveying section 130, the propeller 140, and the conveying section 150. .

FIG. 4 is a front perspective view of the supply device 100 of the insulation finishing material construction spraying system 10 of FIG. 1, showing the grinding unit 120, the transfer unit 130, the air nozzle 142, and the delivery unit 150. am.

Figure 5 is a plan view of the supply device 100 of the insulation finishing material construction spraying system 10 of Figure 1, showing the shelf 110 and the grinding unit 120.

Figure 6 is a side perspective view of the supply device 100 of the insulation finishing material construction spraying system 10 of Figure 1, showing the shelf 110, the grinding unit 120, the transfer unit 130, and the transport unit 150. .

Hereinafter, three-dimensional orthogonal coordinates will be used for easy understanding of the supply device 100 according to an embodiment of the present invention. In addition, I would like to explain the top, bottom, front, and back separately. Based on Figure 3, the Z-axis direction will be referred to as upward, and the opposite direction will be referred to as downward. Additionally, based on Figure 3, the X-axis direction will be referred to as the front, and the opposite direction will be referred to as the rear.

As shown in FIG. 6, the frame (housing) of the supply device 100 can be formed by assembling the frame 101 and the plate material 102. A plurality of wheels 103 are mounted on the lower part of the supply device 100. Therefore, workers can easily move the supply device 100 within the building.

As shown in FIG. 3, the supply device 100 includes a shelf 110, a grinding unit 120, a transfer unit 130, a propeller 140, and a transport unit 150.

The pulverizing unit 120 is configured to pulverize the fiber insulation material 1 supplied with a plurality of rotating blades 120A. The crushing unit 120 is opened upward, and a shelf 110 on which the fiber insulation material 1 is supplied is provided around one side of the opening.

As shown in FIG. 6, the operator can place the fiber insulation material 1 on the shelf 110 and push the fiber insulation material 1 into the upper opening of the grinding unit 120.

The grinding unit 120 is opened downward, and the lower frame of the grinding unit 120 forms a funnel shape that narrows downward with respect to the YZ plane. The frame of the grinding unit 120 has the same shape relative to the XZ plane.

A screw 131, which will be described later, is located on the lower opening of the crushing unit 120. The axis of the screw 131 is parallel to the X axis. The fiber insulation material (1) supplied to the crushing unit (120) is lowered to the screw (131).

As shown in FIGS. 3 to 6, a plurality of rotating blades 120A are provided inside the frame of the grinding unit 120. The plurality of rotary blades 120A include a first rotary blade 121, a second rotary blade 122, and a third rotary blade 123.

The first rotary blade 121 and the second rotary blade 122 are located on opposite sides of the screw 131 in the plan view. The axis of the first rotating blade 121 (hereinafter referred to as 'first axis') and the axis of the second rotating blade 122 (hereinafter referred to as 'second axis') are parallel to the X-axis.

The first rotary blade 121 and the second rotary blade 122 rotate between each other so that the Z-axis direction component of the linear velocity is directed toward the positive Z-axis direction. That is, based on FIG. 6, the first rotating blade 121 rotates clockwise, and the second rotating blade 122 rotates counterclockwise.

The first rotating blades 121 are provided in plural numbers. The first rotating blades 121 are spaced apart from each other at a certain distance along the X-axis direction. The plurality of first rotating blades 121 each include a hub 121A, a central blade 121B, and an orthogonal blade 121C.

The hub 121A of the first rotating blade 121 is coupled to the first axis. The first shaft is rotatably coupled to the frame (housing) of the crusher 120 by a bearing. A first gear 121G is coupled to one end of the first shaft. The rotational force of the first motor 120B is transmitted to the first gear 121G by the first chain 120C. The first chain 120C is shown as a dashed-dotted line.

The central blade 121B of the first rotary blade 121 extends from the hub 121A to both sides in the radial direction of the first axis. The orthogonal blades 121C of the first rotary blade 121 extend from the end of the central blade 121B to both sides in the longitudinal direction of the first axis.

Alternatively, the central blade 121B may extend to one side in the radial direction of the first axis. And the central blades 121B may extend in different radial directions along the longitudinal direction of the first axis. At this time, the orthogonal blade 121C can be replaced with an inclined blade (hereinafter referred to as an “inclined blade”). The inclined blade may extend from the end of the central blade 121B in a radial direction and an inclined direction of the first axis.

The inclined blade can continuously push the fiber insulation material (1) toward the screw (131). The fiber insulation material (1) can be smoothly transferred to the screw (131) by the inclined blade.

The second rotating blades 122 are provided in plural numbers. The second rotating blades 122 are spaced apart from each other at a certain distance along the X-axis direction. The plurality of second rotating blades 122 each include a hub 122A, a central blade 122B, and an orthogonal blade 122C.

The hub 122A of the second rotating blade 122 is coupled to the second axis. The second shaft is rotatably coupled to the frame (housing) of the grinding unit 120 by a bearing. A second gear (122G) is coupled to one end of the second shaft. The rotational force of the first motor 120B is transmitted to the second gear 122G through the first chain 120C.

The central blade 122B of the second rotary blade 122 extends from the hub 122A to both sides in the radial direction of the second axis. The orthogonal blades 122C of the second rotary blade 122 extend from the end of the central blade 122B to both sides of the second axis in the longitudinal direction.

Alternatively, the central blade 122B may extend to one side in the radial direction of the second axis. And the central blades 122B may extend in different radial directions along the longitudinal direction of the second axis. At this time, the orthogonal blade 122C can be replaced with an inclined blade (hereinafter referred to as an “inclined blade”). The inclined blade may extend from the end of the central blade 122B in the radial and inclined direction of the second axis.

The inclined blade can continuously push the fiber insulation material (1) toward the screw (131). The fiber insulation material (1) can be smoothly transferred to the screw (131) by the inclined blade.

The sum of the rotation radii of the first rotary blade 121 and the second rotary blade 122 is greater than the distance between the first axis and the second axis. Therefore, the fiber insulation material 1 is crushed and falls between the first and second rotating blades 121 and 122 that rotate in opposite directions.

As shown in FIG. 5, the third rotating blade 123 is provided on the opposite side of the shelf 110 with respect to the screw 131 in the plan view. The axis of the third rotating blade 123 (hereinafter referred to as 'third axis') is parallel to the X-axis.

The first rotary blade 121 is provided on the opposite side of the lathe 110 based on the screw 131 in the plan view, and the first rotary blade 121 and the third rotary blade 123 rotate in opposite directions. Based on Figure 6, the third rotating blade 123 rotates clockwise.

The third rotating blade 123 is provided in plural numbers. The third rotating blades 123 are spaced apart from each other at a certain distance along the X-axis direction. The plurality of third rotating blades 123 each include a hub 123A, a central blade 123B, and an orthogonal blade 123C.

The hub 123A of the third rotating blade 123 is coupled to the third axis. The third axis is rotatably coupled to the frame (housing) of the crusher 120 by a bearing. A third gear (123G) is coupled to one end of the third axis. The rotational force of the first motor 120B is transmitted to the third gear 123G through the first chain 120C.

The central blade 123B of the third rotating blade 123 extends from the hub 123A in the radial direction of the third axis. The orthogonal blades 123C of the third rotary blade 123 extend from the end of the central blade 123B to both sides of the third axis in the longitudinal direction.

The central blades 123B may extend in different radial directions along the longitudinal direction of the third axis. At this time, the orthogonal blade 123C can be replaced with an inclined blade (hereinafter referred to as an “inclined blade”). The inclined blade may extend from the end of the central blade 123B in the radial and inclined direction of the third axis.

The inclined blade can continuously push the fiber insulation material (1) toward the screw (131). The fiber insulation material (1) can be smoothly transferred to the screw (131) by the inclined blade.

The sum of the rotation radii of the first rotating blade 121 and the third rotating blade 123 is smaller than the distance between the first axis and the third axis. Accordingly, the fiber insulation material 1 is pulverized by the first and third rotary blades 121 and 123 that rotate in opposite directions and moves between the first and second rotary blades 121 and 122.

As shown in FIG. 3, the transfer unit 130 is configured to transfer the fiber insulation material 1 dropped from the pulverizing unit 120 to the screw 131. A screw 131 is located on the lower opening of the grinding unit 120. The axis of the screw 131 is parallel to the X axis.

The axis of the screw 131 (hereinafter referred to as 'the fourth axis') is rotatably coupled to the frame (housing) of the transfer unit 130 by a bearing. A fourth gear (131G) is coupled to one end of the fourth axis. The rotational force of the second motor 132 is transmitted to the fourth gear 131G through the second chain 133. The second chain 133 is shown as a dashed-dotted line.

The transfer unit 130 opens upward. The fiber insulation material (1) supplied to the crushing unit (120) is lowered to the screw (131). The frame of the transfer unit 130 is provided below the screw 131. The frame of the transfer unit 130 forms a somewhat small gap with the rotation radius of the screw 131.

The screw 131 rotates and carries the fiber insulation material 1 forward. The transfer unit 130 opens forward. The fiber insulation material 1 moved to the front of the transport unit 130 falls to the transport unit 150.

The propeller 140 rotates at high speed between the transfer unit 130 and the transport unit 150 to crush the fiber insulation material 1. The propeller 140 is provided in front of the transfer unit 130. The fiber insulation material 1 moving to the front of the transport unit 130 is pulverized into fine particles by the high-speed rotating propeller 140 and falls into the transport unit 150.

As shown in FIG. 4, the supply device 100 may include an air nozzle 142. The air nozzle 142 supplies air between the transfer unit 130 and the transport unit 150 to disperse the fiber insulation material 1. The air nozzle 142 is provided in front of the transfer unit 130.

The fiber insulation material 1 moving to the front of the transfer unit 130 is dispersed in the form of fine particles by air injection from the air nozzle 142 and falls into the transfer unit 150. The number of air nozzles 142 can be freely adjusted. An air compressor supplies compressed air to the air nozzle 142. The air compressor can be equipped with 3.5 horsepower and a capacity of 50L or more.

As shown in FIG. 3, the transport unit 150 is configured to transport the fiber insulation material 1 dropped from the transport unit 130 to the outlet 152 by air from the blower 154. The transport unit 150 is located below the front opening of the transport unit 130.

An inlet 151 and an outlet 152 through which air from the blower 154 enters and exits are formed in the frame of the air transport unit 150. Air from the blower 154 flows into the air transport unit 150 through a pipe connected to the inlet 151. A third hose 160 is connected to the outlet 152.

Accordingly, the supply device 100 supplies the pulverized fiber insulation material 1 in the form of fine particles to the injection port 400 through the third hose 160. The third hose 160 is provided as an anti-static hose. The length of the third hose 160 may be approximately 50 m to facilitate movement of the spray nozzle 400 within the building.

As shown in FIG. 3, the inlet 151 and the outlet 152 are formed directly on the bottom of the delivery unit 150. And the inlet 151 and the outlet 152 are formed on a horizontal straight line (hereinafter referred to as 'a first straight line'). As an example, the above-mentioned horizontal direction may be the Y-axis direction.

Therefore, the air flowing into the inlet 151 can be smoothly discharged through the outlet 152. At this time, the fiber insulation material 1 in the form of fine particles that has moved between the inlet 151 and the outlet 152 can be smoothly discharged through the outlet 152 together with the air flowing into the inlet 151.

The transport unit 150 includes a wing car 153. The impeller 153 has a plurality of rotating blades and is configured to transport the fiber insulation material 1 dropped from the transfer unit 130 in a fixed amount between the inlet 151 and the outlet 152.

The axis of the impeller 153 is parallel to the first straight line. The axis of the impeller 153 (hereinafter referred to as 'fifth axis') is rotatably coupled to the frame (housing) of the transport unit 150 by a bearing. A fifth gear 155 is coupled to one end of the fifth axis. The rotational force of the third motor 156 is transmitted to the fifth gear 155 through the third chain 157. The third chain 157 is shown as a dashed-dotted line.

The frame of the air transport unit 150 forms a somewhat small gap with the turning radius of the impeller 153 below the fifth axis. Accordingly, the fiber insulation material 1 in the form of fine particles dropped from the transfer unit 130 is seated on the upper part of the impeller 153. The impeller 153 rotates at a constant speed.

Therefore, the fiber insulation material 1 in the form of fine particles is generally seated in a fixed amount between each wing of the impeller 153. The impeller 153 rotates and transports the fiber insulation material 1 in the form of fine particles seated between each wing in a fixed amount between the inlet 151 and the outlet 152.

Figure 7 is a perspective view showing the injection port 400 of the insulation finishing material construction spraying system 10 of Figure 1. FIG. 8 is a plan view showing the injection port 400 of the insulation finishing material construction injection system 10 of FIG. 1.

FIG. 9 is a cross-sectional view of the injection port 400 of FIG. 7, showing the second nozzle 430 and the annular block 440. FIG. 10 is a cross-sectional view of the injection port 400 of FIG. 7, showing the first nozzle 420 and the guide module 450. FIG. 11 is a diagram showing the use state of the injection port 400 of FIG. 7.

As shown in FIG. 11, the injection hole 400 is configured to spray the fiber insulation material (1), the base material (2), and the curing agent (3), respectively. As shown in FIGS. 7 and 8, it includes an injection pipe 410, a first nozzle 420, a second nozzle 430, an annular block 440, and a guide module 450.

The injection pipe 410 forms a cylindrical pipe shape. The injection pipe 410 is connected to the third hose 160. Therefore, the injection pipe 410 sprays the fiber insulation material 1 forward by the air from the blower 154. The above-described front refers to the direction in which the opening of the injection pipe 410 faces. The above-described front coincides with the direction of the central axis of the injection pipe 410.

The first nozzle 420 is configured to spray the subject matter 2 forward. For example, the first nozzle 420 may be provided as a spray tip. As disclosed in Patent Publication No. 2022-0126721, the spray tip is a widely known technology, so detailed description thereof will be omitted.

A plurality of first nozzles 420 are provided. A plurality of first nozzles 420 are arranged along the circumference of the injection pipe 410 by a plurality of guide blocks.

The plurality of first nozzles 420 include an 11th nozzle 421 and a 12th nozzle 422. The 11th nozzle 421 and the 12th nozzle 422 form an angle of 180 degrees with the injection pipe 410 as the center.

The main agent 2 sprayed forward from the 11th nozzle 421 and the 12th nozzle 422 forms a symmetrical shape with respect to the center line 411 of the injection pipe 410. And the main agent 2 sprayed forward from the 11th nozzle 421 and the 12th nozzle 422 overlaps each other on an extension of the center line 411 of the injection pipe 410.

The second nozzle 430 is configured to spray the hardener 3 forward. For example, the second nozzle 430 may be provided as a flat spray nozzle. As disclosed in U.S. Patent Publication No. 2021-0268522, the flat spray nozzle is a widely known technology, so detailed description thereof will be omitted.

A plurality of second nozzles 430 are provided. A plurality of second nozzles 430 are arranged along the circumference of the injection pipe 410 by guide blocks.

The plurality of second nozzles 430 include a 21st nozzle 431, a 22nd nozzle 432, a 23rd nozzle 433, and a 24th nozzle 434. The 21st nozzle 431, the 22nd nozzle 432, the 23rd nozzle 433, and the 24th nozzle 434 sequentially form an angle of 90 degrees with each other centered on the injection pipe 410.

The curing agent 3 sprayed forward from the 21st nozzle 431, 22nd nozzle 432, 23rd nozzle 433, and 24th nozzle 434 is based on the center line 411 of the injection pipe 410. form a symmetrical shape with each other.

The curing agent 3 sprayed forward from the 21st nozzle 431, 22nd nozzle 432, 23rd nozzle 433, and 24th nozzle 434 is an extension of the center line 411 of the injection pipe 410. They overlap each other in the image.

The 11th nozzle 421 forms an angle of 45 degrees with the 21st nozzle 431 and the 22nd nozzle 432, respectively, with the injection pipe 410 as the center. And the 12th nozzle 422 forms an angle of 45 degrees with the 23rd nozzle 433 and the 24th nozzle 434, respectively, with the injection pipe 410 as the center.

Therefore, the sprayed base material (2) and the hardener (3) are uniformly mixed before reaching the surface to be adhered, such as the ceiling (8) of a building, to form a binder composition. In addition, the binder composition forms a mixture with the artificial mineral fiber insulation material (1) before reaching the surface to be adhered, such as the ceiling (8) of a building. The mixture of the artificial mineral fiber insulation material (1) and the binder composition is adhered to the surface to be adhered, such as the ceiling (8) of a building, to form a finishing material.

The guide module 450 is provided in plural numbers. The plurality of guide modules 450 each include a body 451, a seal member 452, and a fastening member 453.

The plurality of guide modules 450 form an angle of 180 degrees with each other centered on the injection pipe 410. Accordingly, the 11th nozzle 421 and the 12th nozzle 422 form an angle of 180 degrees with the injection pipe 410 as the center.

The body 451 is configured to which the first nozzle 420 is detachably coupled. The body 451 is coupled to the outer surface of the injection pipe 410. The body 451 generally forms a hexahedral block shape.

The first nozzle 420 may be inserted into and separated from the body 451 (in the radial direction with respect to the injection pipe 410). The injection hole of the first nozzle 420 is exposed toward the front while coupled to the body 451.

The seal member 452 is in close contact with each of the first nozzles 420 inside the bodies 451 to block leakage of the main body 2. 10 , the upper surface of the seal member 452 forms a curved surface in close contact with the outer surface of the first nozzle 420. And, based on Figure 10, a rubber packing may be formed on the lower surface of the seal member 452.

The fastening member 453 is a component that couples the end of the first hose 210 through which the main body 2 moves from the first pump 200 to the body 451.

The end of the first hose 210 forms a radially expanded flange portion. The fastening member 453 may be provided as a hollow bolt. The fastening member 453 is screwed to the body 451 and presses the flange portion with the seal member 452. Therefore, leakage of the main body 2 through the hollow of the fastening member 453 is blocked by the rubber packing of the seal member 452.

The annular block 440 is coupled to the outer surface of the injection pipe 410. The annular block 440 literally forms a ring shape. A plurality of second nozzles 430 are coupled to the annular block 440.

A plurality of insertion holes 445 where the second nozzles 430 are coupled are formed on the front of the annular block 440. The front of the annular block 440 refers to the upper surface of the annular block 440 with reference to FIG. 9.

The plurality of insertion holes 445 sequentially form an angle of 90 degrees with each other centered on the injection pipe 410. Accordingly, the 21st nozzle 431, the 22nd nozzle 432, the 23rd nozzle 433, and the 24th nozzle 434 sequentially form an angle of 90 degrees with each other centered on the injection pipe 410.

The second nozzle 430 is coupled to the annular block 440 within the insertion hole 445 by a fastening member 442. 9 , the lower end of the second nozzle 430 forms a radially expanded flange portion.

The fastening member 442 may be provided as a hollow bolt. The fastening member 442 is screwed into the insertion hole 445 and presses the flange portion. Therefore, the flow of the second nozzle 430 is blocked.

The annular block 440 forms a flow path 441 within which the curing agent 3 moves to the 21st nozzle 431, the 22nd nozzle 432, the 23rd nozzle 433, and the 24th nozzle 434. . The flow path 441 is connected to a plurality of insertion holes 445. The flow path 441 is formed in a horizontal direction with respect to FIG. 9 .

The flow path 441 may be formed by drilling the outer surface of the annular block 440. The cover 444 is coupled to the outer surface of the annular block 440 to close the opening of the flow path 441 by drilling.

The flow path 441 opens downward with reference to FIG. 9 . A connector 443 is screwed into the opening of the flow path 441. The end of the second hose 310 through which the curing agent 3 moves from the second pump 300 is connected to the opening of the flow path 441 by a connector 443.

The binder for spraying the artificial mineral fiber insulation material (1) according to an embodiment of the present invention is made by mixing the base material (2) and the hardener (3).

At this time, the subject matter (2) includes Poly Vinyl Alcohol (PVA) and Acryl polymer, but is not limited to these. Here, the artificial mineral fiber insulation material 1 includes glass fiber, glass wool, and mineral wool.

The acryl copolymer may contain one or more monomers selected from the group consisting of Ethyl acrylate, Butyl acrylate, 2-Ethylhexyl acrylate, etc., but is not limited to these alone. The monomer is a component with a low Tg when turned into a polymer and has the advantage of high tackness.

The acryl polymer may further include functional monomers in addition to the monomers. The functional monomer can be used for various purposes, and methacrylic acid, acrylic acid, acrylamide, glycidyl methacrylate, etc. can be used. For example, methacrylic acid or acrylic acid can improve adhesion to the adherend, acrylamide can improve cohesion, and glycidyl methacrylate can be introduced for additional crosslinking reaction.

When using glass wool, one of the artificial mineral fiber insulation materials (1), the acryl polymer may include acrylic acid or methacrylic acid as a component in consideration of the surface characteristics (Si-OH) of the glass wool.

Poly Vinyl Alcohol (PVA) has a chain structure, is sticky, and has the property of dissolving in water. PVA is used to create a quick-drying or fast-curing adhesive composition for ceiling spraying. The curing process progresses quickly with this polymer, and Borax (Na2[B4O2(OH)4), which is described later, is used to strengthen insulation and incombustibility. 8H2O) may be included in the composition.

In this regard, the PVA may be a combination of one or more PVA. When using a combination of more than one PVA, PVA with different degrees of polymerization can be named group A with a low degree of polymerization, group B with a medium degree of polymerization, and group C with a high degree of polymerization.

For example, PVA with a degree of polymerization of 200 to 800 may be referred to as group A, PVA with a degree of polymerization of 1300 to 2000 may be referred to as group B, and PVA with a degree of polymerization of 2100 to 2700 may be referred to as group C, and the group A, group B, and group PVA can be combined with one or more combinations selected from the group consisting of C.

The group A may be included in an amount of 5 to 6.5 parts by weight, the group B may be included in an amount of 1.0 to 1.7 parts by weight, and the group C may be included in an amount of 1.0 to 1.7 parts by weight. The greater the degree of polymerization of PVA, the faster the reaction rate with borax, which improves the curing speed, but its high viscosity makes it undesirable to use as a binder for spray coating. In addition, the lower the degree of polymerization of PVA, the relatively slower the reaction rate with borax, which is undesirable because the adhesion of the binder for spray coating that requires quick drying may become weak. For the above reasons, the present inventors calculated the above-mentioned degree of polymerization combination and content ratio within a range that satisfies the physical properties required in the field.

Meanwhile, the hardener (3) may include borax, but is not limited to these alone, and any curing agent can be used as long as it reacts with the -OH group of PVA to form a hydrogel and is flame retardant and does not generate harmful gases.

During the curing process, through the reaction shown in Figure 12, some of the PVA chains combine with the boric acid ion (B(OH)4-) contained in borax, creating a network structure and generating water. At this time, adhesion can be achieved through evaporation of the resulting moisture.

In addition, since borax functions as an incombustible or flame retardant material, it extinguishes fire in the area where a fire occurs, that is, it strengthens insulation and incombustibility (or semi-incombustibility) through its self-extinguishing function.

On the other hand, the binder for spraying the artificial mineral fiber insulation material (1) according to an embodiment of the present invention may be an aqueous emulsion binder. Aqueous emulsion-type binders are relatively simple to synthesize polymers through emulsion polymerization and can secure high molecular weight in high yield in a short time. Additionally, various types of monomers can be mixed, allowing control of physical properties.

Additionally, the binder composition may consist of separate solutions of the main agent (2) and the curing agent (3). Since a crosslinking reaction occurs when mixing the base material (2) and the curing agent (3), it is necessary to store it as a separate solution until immediately before the construction stage.

In one example, the main agent (2) of the binder composition may further include a solvent, an emulsifier, an initiator, and an anti-corruption agent, and the curing agent (3) may further include a solvent, a cross-linking accelerator, a cross-linking agent, and an anti-corruption agent. You can.

At this time, the solvent may be distilled water.

Emulsifiers include, for example, anionic surfactant (salt or sulfuric ester), sulfate, sulfosuccinate half ester salt, sodium dodecyl benzene sulfonate, and sodium dioctyl sulfosuccinate, but are not limited to these.

Anti-corruption agents may be, for example, antiseptic agents containing inorganic substances and ions such as Cu, Ag, Zn, and zeolite, but are not limited to these alone.

For example, the initiator may be Ammonium Persulfate, Azo bis iso-butyro nitril, Benzoyl peroxide, tert-butyl perbenzoate, etc., but is not limited to these.

The crosslinking accelerator may be a substance such as NaOH or KOH, but is not limited to this alone.

The crosslinking accelerator makes the hardener (3) acidic because it contains borax, and acidification of the hardener (3) weakens the reaction, so it neutralizes it and promotes the reaction, thereby increasing the reactivity with the concrete matrix and PVA It is added to enhance the adhesion characteristics to concrete surfaces or steel plates by promoting reactivity with.

Meanwhile, the main binder (2) according to an embodiment of the present invention may have a viscosity of 9 cPs to 200 cPs. If the viscosity is less than 10 cPs, rapid curing does not occur during construction, which reduces adhesion, and if the viscosity is more than 200 cPs, discharging from a spray gun may not be smooth, which is not desirable.

The insulation finishing material (4) according to an embodiment of the present invention includes a binder composition for spraying the artificial mineral fiber insulation (1) and the artificial mineral fiber insulation (1), and is sprayed on the surface to be adhered, such as the ceiling of a building, to form a finishing material. I do it.

That is, when artificial mineral fiber insulation (1) such as glass fiber, glass wool, mineral wool, and the above-mentioned binder composition are sprayed to form a mixture, this soon becomes a finishing material and construction is completed.

This finishing material is a mixture of the artificial mineral fiber insulation material (1) and the binder composition at a weight ratio of 1:1 to 4:1, and is sprayed on the surface to be adhered, such as the ceiling of a building, to form a finishing material as moisture evaporates. . When the artificial mineral fiber insulation material (1) is included in a weight ratio of less than 1:1 compared to the binder composition, there is a problem that the insulation and sound absorption performance are reduced due to insufficient insulation and a decrease in physical voids, and the artificial mineral fiber insulation material (1) ) is included in a weight ratio exceeding 4:1 compared to the binder composition, the binder is not sufficient during the construction process, resulting in poor constructability, and the artificial mineral fiber insulation material (1) agglomerates locally, reducing the internal porosity, thereby reducing the final insulation and sound absorption performance. This is not desirable as it may actually deteriorate.

Like the bonding structure of FIG. 13, the binder binds the fiber insulation material 1 and maintains the physical voids, but is made to have a confined structure, thereby increasing not only the insulation performance but also the sound absorption performance, and the non-combustible characteristics of the artificial mineral fiber insulation material 1 itself. As self-extinguishing properties are increased due to the involvement of borax, non-flammable performance can be secured.

When the finishing material according to the present invention is constructed with this structure, not only is sufficient adhesion maintained, but the thermal conductivity, which is the required performance of insulation materials for buildings, can be maintained below 0.036 W/mK.

According to the present invention, the first nozzle 420 for spraying the base material 2 forward and the second nozzle 430 for spraying the hardener 3 forward are spray pipes for spraying the fiber insulation material 1 forward ( 410), it is possible to directly form a spray-type insulation material on site by mixing a spray-type adhesive and a fibrous inorganic material, and the thickness and area of insulation construction can be freely adjusted, enabling on-site response according to the design of the building. It is possible to provide a spray system 10 for easy installation of insulation finishing materials.

In addition, by being composed of the supply device 100, the first pump 200, the second pump 300, and the nozzle 400, people can easily move and use it without restrictions on space or environment, so there are no restrictions on the use of the building. In addition, it is possible to provide an insulation finishing material construction spraying system 10 that enables construction to achieve performance that meets the required performance regardless of the diversity in the application of each structure.

Although specific embodiments of the present invention have been described and shown above, it is known in the art that the present invention is not limited to the described embodiments, and that various modifications and changes can be made without departing from the spirit and scope of the present invention. This is self-evident to those who have it. Accordingly, such modifications or variations should not be understood individually from the technical idea or viewpoint of the present invention, and the modified embodiments should be regarded as falling within the scope of the claims of the present invention.

10: Insulation finishing material construction spraying system
100: supply device 200: first pump
101: frame 210: first hose
102: plate 300: second pump
103: wheel 310: second hose
110: shelf 400: nozzle
120: Grinding unit 410: Injection pipe
120A: Rotating blade 411: Center line
120B: first motor 420: first nozzle
120C: 1st chain 421: 11th nozzle
121: 1st rotating blade 422: 12th nozzle
121A: Hub 430: Second nozzle
121B: Center blade 431: 21st nozzle
121C: Orthogonal blade 432: 22nd nozzle
121G: 1st gear 433: 23rd nozzle
122: 2nd rotation blade 434: 24th nozzle
122A: Hub 440: Annular block
122B: Center blade 441: Euro
122C: Orthogonal blade 442: Fastening member
122G: 2nd gear 443: connector
123: Third rotating blade 444: Cover
123A: Hub 445: Insertion hole
123B: Center blade 450: Guide module
123C: Orthogonal blade 451: Body
123G: Third gear 452: Seal member
130: transfer unit 453: fastening member
131: Screw 1: Fiber insulation
131G: Fourth Gear 2: Topic
132: second motor 3: hardener
133: 2nd chain 4: insulation finishing material
140: propeller 6: pillar
142: Air nozzle 7: Beam
150: Transportation Department 8: Ceiling
151: Entrance
152: exit
153: wing car
154: blower
155: 5th gear
156: third motor
157: third chain
160: 3rd hose

Claims (17)

Nozzles for spraying fiber insulation, base material, and hardener, respectively;
A supply device that supplies fiber insulation to the injection hole;
a first pump supplying a subject to the injection port; and
It includes a second pump that supplies a hardener to the injection port,
The nozzle is,
A spray pipe that sprays the fiber insulation material forward;
a plurality of first nozzles disposed along the circumference of the injection pipe and spraying the subject matter forward; and
An insulation finishing material construction spraying system disposed along the circumference of the spray pipe and comprising a plurality of second nozzles that spray a hardener forward. According to paragraph 1,
The plurality of first nozzles include an 11th nozzle and a 12th nozzle forming an angle of 180 degrees with each other around the injection pipe,
The plurality of second nozzles include a 21st nozzle, a 22nd nozzle, a 23rd nozzle, and a 24th nozzle sequentially forming an angle of 90 degrees with each other centered on the injection pipe. According to paragraph 2,
The 11th nozzle forms an angle of 45 degrees with the 21st nozzle and the 22nd nozzle, respectively, with the injection pipe as the center,
The twelfth nozzle is an insulation finishing material construction spraying system, characterized in that each of the 23rd nozzle and the 24th nozzle forms an angle of 45 degrees around the injection pipe. According to paragraph 2,
The nozzle is,
It is coupled to the outer surface of the injection pipe and includes an annular block to which the plurality of second nozzles are coupled,
The annular block is an insulation finishing material construction spraying system, characterized in that it forms a flow path within which the curing agent moves to the 21st nozzle, the 22nd nozzle, the 23rd nozzle, and the 24th nozzle. According to paragraph 4,
An insulation finishing material construction spraying system, characterized in that the end of the second hose through which the hardener moves from the second pump is connected to the flow path. According to paragraph 1,
The nozzle is,
a plurality of bodies each coupled to an outer surface of the injection pipe and to which the first nozzles are each detachably coupled;
a plurality of seal members inside the bodies, each in close contact with the first nozzles to block leakage of the main body; and
An insulation finishing material construction spraying system comprising a plurality of fastening members that couple the ends of the first hose through which the subject moves from the first pump to the bodies. According to paragraph 1,
The supply device is,
A pulverizing unit that crushes the supplied fiber insulation material with a plurality of rotating blades;
A transfer unit that transfers the fiber insulation material dropped from the crushing unit to a screw; and
An insulation finishing material construction spraying system comprising an inlet and an outlet through which the air of the blower enters and exits are formed in a straight line, and a transport part that transports the fiber insulation material dropped from the transport part to the outlet by the air of the blower. In clause 7,
The supply device is,
The insulation finishing material construction spraying system further comprises a propeller that rotates at high speed between the transfer unit and the transport unit to crush the fiber insulation material. In clause 7,
The supply device is,
The insulation finishing material construction spraying system further comprises an air nozzle that supplies air between the transfer unit and the transport unit to disperse the fiber insulation material. In clause 7,
The Ministry of Public Transport,
Insulation finishing material construction spraying system, characterized in that the plurality of blades rotate and further comprises an impeller for transporting the fiber insulation material dropped from the transfer unit in a fixed amount between the inlet and the outlet. In clause 7,
The crushing part is opened upward, and a shelf on which fiber insulation is supplied is provided around one side of the opening,
The plurality of rotating blades are,
a first rotary blade and a second rotary blade that rotate in opposite directions on the screw and are located on opposite sides of the screw in a plan view; and
An insulation finishing material construction spraying system comprising a third rotating blade that is provided on an opposite side of the shelf relative to the screw in a plan view and rotates. According to clause 11,
The first rotary blade is provided on the opposite side of the shelf with respect to the screw in a plan view and rotates in the opposite direction to the third rotary blade. According to paragraph 1,
The subject matter includes Poly Vinyl Alcohol (PVA) and Acryl polymer,
The hardening agent is a spray system for applying insulation finishing material, characterized in that it contains borax. According to clause 13,
The mixture of the main agent and the curing agent is used as a binder composition for spraying the fiber insulation material,
The binder is an insulation finishing material construction spraying system, characterized in that the binder is a water-based emulsion binder. According to clause 13,
The acryl polymer is an insulation finishing material construction spraying system, characterized in that the monomer is at least one selected from the group consisting of Ethyl acrylate, Butyl acrylate, 2-Ethylhexyl acrylate, Acrylic acid and Methacrylic acid. According to clause 13,
The PVA is a spray system for applying insulation finishing material, characterized in that it is a combination of one or more selected from the group consisting of Group A with a degree of polymerization of 200 to 800, Group B with a degree of polymerization of 1300 to 2000, and Group C with a degree of polymerization of 2100 to 2700. According to clause 16,
A spray system for spraying insulation finishing material, characterized in that the group A includes 5 to 6.5 parts by weight, the group B includes 1.0 to 1.7 parts by weight, and the group C includes 1.0 to 1.7 parts by weight.

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