KR102519827B1 - Automatic system for spraying fireproofing composition - Google Patents

Abstract

The present invention relates to a fireproof spraying automation system capable of automating the spraying of a fireproof coating material on the steel frame surface of a building, and includes a lifting unit 100 having a movable moving unit 110 at the bottom and capable of adjusting the height up and down; a spraying robot 200 installed on top of the elevation unit 100 and spraying a fireproof coating material; A silo 310 into which refractory raw materials are input, a water storage tank 320 in which water is stored, and a refractory raw material discharged from the silo 310 and the water storage tank 320 disposed at the lower end of the silo 310 An agitator 330 in which water supplied from is introduced and agitated, a pump 340 for pressurizing the fireproof coating material discharged from the agitator 330 to the spraying robot 200, and the agitator 330 ) and a fire resistant coating material supply unit 300 including a control panel 350 for controlling the mixing ratio of the fire resistant coating material in which stirring takes place.

Description

Fireproof spraying automation system {AUTOMATIC SYSTEM FOR SPRAYING FIREPROOFING COMPOSITION}

The present invention relates to an automated fireproof spraying system capable of automating the spraying of a fireproof coating material on a steel frame surface of a building.

When a fire occurs in a building, high heat of about 800 to 1000 degrees is generated. At this time, although the steel structure forming the building is non-combustible, the conduction of heat is very fast, and the strength of the steel is rapidly reduced due to high heat. Therefore, when a fire occurs in a building, the steel structure is easily deformed due to high heat, which can lead to collapse of the building.

For this reason, a fire-resistant coating material is installed on the surface of a steel structure of a building to increase fire resistance strength. The fire-resistant cladding material maintains the structural performance of the steel structure in the event of a fire in the building, provides time to evacuate from the fire, and prevents the spread of the fire.

On the other hand, the fire-resistant coating material must be maintained without falling off from the steel structure during the life of the building, and therefore, the fire-resistant coating material must have not only fire resistance performance but also a certain degree of adhesion strength.

A general fire-resistant coating method is a spraying method in which fire-resistant coating material is sprayed on the surface of the steel frame, and the fire resistance performance of the fire-resistant coated steel frame is determined by the type and thickness of the fire-resistant coating. Therefore, in the construction process of the spray coating method, it is very important to construct the steel structure so that it is integrated while maintaining a constant coating thickness.

In the spraying construction process, individual equipment such as mixers and sprayers are transported and installed in the work space, then the target surface (steel surface) to be sprayed is inspected, the fireproof coating material prepared by mixing the raw materials is sprayed on the steel frame surface, and then the steel frame surface The construction is completed by inspecting the thickness of the coated fireproof coating material.

Since such a conventional spraying method is performed directly on the steel surface by hand using individual equipment, it is difficult to secure uniform quality because the coating thickness is not constant depending on the skill level of the operator. In addition, in the process of mixing raw materials, the mixing ratio must be properly determined in consideration of the working environment (temperature/humidity), and even in this process, differences occur depending on the skill level of the operator.

In this way, the conventional spraying construction by manual work is difficult to secure uniform quality, it is easy to cause air delays due to lack of skilled manpower, and the work environment harmful to the human body of workers due to dust and noise, fall due to work at height There are problems that cause accidents.

In order to solve these problems, developments have been made to automate fireproof spraying work. For example, Patent Publication No. 10-2009-0085809 (published on August 10, 2009) is a system for automating spraying construction. and methods are disclosed.

Publication No. 10-2009-0085809 (published date: 2009.08.10.)

The present invention is to provide a fireproof spraying automation system capable of automating the spraying construction of a fireproof coating material on the steel frame surface of a building.

Fireproof spraying automation system according to the present invention for achieving this object, a moving unit capable of moving in the lower portion is provided with a lifting unit capable of adjusting the height up and down; a spraying robot installed on the upper part of the elevating unit and spraying the fireproof coating material; A silo in which refractory raw materials are input, a water storage tank for storing water, and an agitation unit disposed at the lower end of the silo and in which refractory raw materials discharged from the silo and water supplied from the storage tank are input and stirred, and a fire-resistant coating material supply unit including a pump for pressure-feeding the fire-resistant coating material discharged from the stirring unit to the spraying robot, and a control panel for controlling a mixing ratio of the fire-resistant coating material stirred in the stirring unit.

Preferably, the fireproof coating material supply unit includes a frame supporting the silo to be movable up and down, and the agitator and the pump are configured as a single module and can move separately from the frame.

More preferably, the silo further includes a stirrer cover coupled to an upper open end of the stirrer and a vibrator generating vibration, and a grid and a cutter are provided at the upper opening of the silo.

Preferably, the fireproof coating material supply unit further includes a temperature detection unit and a humidity detection unit for detecting temperature and humidity, and the control panel receives detection signals from the temperature detection unit and the humidity detection unit to determine the mixing ratio of the fireproof coating material and water. do.

Preferably, the spraying robot further includes a scattering prevention unit for preventing the sprayed fireproof coating material from scattering to the surroundings adjacent to a nozzle unit where the fireproof coating material is sprayed.

More preferably, the scattering prevention unit is a screen fixed in front of the nozzle unit, or a high-pressure nozzle provided around the nozzle unit and spraying high-pressure steam or air.

The fireproof spraying automation system according to the present invention includes an elevation unit for moving the spraying robot to a work area and lifting it to a working height, and a fireproof material raw material and water in an appropriate mixing ratio and stirring to transfer the prepared fireproof coating material to the spraying robot. It is possible to automate the fireproof spraying work process including the fireproof coating material supply unit, and in particular, the quality degradation due to manual work can be prevented by automating the stirring process of the fireproof coating material, and the surroundings can be prevented from being polluted by dust in the preparation process. there is.

1 is a block diagram of an automated fire spraying system according to an embodiment of the present invention.
2 is a perspective configuration diagram of a fireproof coating material supply unit of an automated fireproof spraying system according to an embodiment of the present invention.
3 is a plan view of a fireproof coating material supply unit of a fireproof spraying automation system according to an embodiment of the present invention.
4 is a configuration diagram showing a preferred embodiment of a control panel unit of a fireproof spraying automation system according to an embodiment of the present invention.
Figure 5 (a) (b) is a configuration diagram showing preferred embodiments of the scattering prevention unit of the fireproof spraying automation system according to an embodiment of the present invention, respectively.

Specific structural or functional descriptions presented in the embodiments of the present invention are merely exemplified for the purpose of explaining embodiments according to the concept of the present invention, and embodiments according to the concept of the present invention may be implemented in various forms. In addition, it should not be construed as being limited to the embodiments described in this specification, and should be understood to include all modifications, equivalents, or substitutes included in the spirit and scope of the present invention.

Hereinafter, the present invention will be described in detail with reference to the accompanying drawings.

1 is a block diagram of a fireproof spraying automation system according to an embodiment of the present invention, Figure 2 is a perspective block diagram of a fireproof coating material supply unit of a fireproof spraying automation system according to an embodiment of the present invention, Figure 3 is a block diagram of the present invention It is a plan view of the fireproof coating material supply unit of the fireproof spraying automation system according to the embodiment.

1 to 3 , the fireproof spraying automation system according to an embodiment of the present invention includes a lifting unit 100, a spraying robot 200, and a fireproof coating material supply unit 300.

The lifting unit 100 includes a movable unit 110 provided with a plurality of drive wheels 111 and a lift unit 120 provided at the top of the movable unit 110 to adjust the height up and down, This embodiment exemplifies a well-known aerial work vehicle, but is not limited thereto. The moving unit 110 may include a battery for supplying power and a brake for braking the driving wheel 111 . Meanwhile, known sensors capable of detecting information such as the position of the moving unit 110 and the height of the lifting unit 110 may be added to the elevating unit 100 so that an operator can remotely control the elevating unit 100 with a remote control.

Preferably, the elevating unit 120 has an anti-bar 121 vertically fixed higher than the spraying robot 200, and a contact detection unit 121a such as a limit switch may be provided at the upper end of the anti-bar 121. . The contact detection unit 121a is used as a control signal to warn an operator or stop the operation of the elevator 120 when the elevator 120 rises above a permissible height indoors, thereby preventing accidents in advance. there is.

The spraying robot 200 is installed on the upper part of the lifting unit 100 to spray the fireproof coating material, and can move forward and backward in the horizontal direction along the guide rail 210 provided on the top of the lifting unit 100.

Specifically, the spraying robot 200 includes a robot arm 220 having a joint part 221 capable of rotationally driving, and a nozzle part 230 provided at a front end of the robot arm 220 . Preferably, the nozzle unit 230 is installed at the front end of the robot arm 220 via a telescoping arm (not shown), and the front and rear position of the nozzle unit 230 can be manipulated by adjusting the length of the telescoping arm. do.

The robot arm 220 includes a vision system adjacent to the nozzle unit 230, and the vision system is used for inspection of spraying positions, spraying conditions, and dimensions.

Preferably, the robot arm 220 further includes a scattering prevention unit for preventing the fireproof coating material sprayed adjacent to the nozzle unit 230 from scattering to the surroundings, and specific embodiments of the scattering prevention unit will be described again in related drawings. do.

The refractory cladding material supply unit 300 is disposed at the lower end of the silo 310 in which the refractory raw materials are input, the water storage tank 320 in which water is stored, and the refractory raw materials discharged from the silo 310 and the water storage tank A stirring unit 330 in which water supplied from 320 is input and stirred, a pump 340 for pressurizing the fireproof coating material discharged from the stirring unit 330 to the spraying robot 200, and a stirring unit 330 It may include a control panel 350 that controls the mixing ratio of the fire-resistant coating material in which stirring takes place.

The fireproof coating material supply unit 300 may include a frame 301 made of a plurality of beams and plates for installing structures, and the frame 301 is provided with a plurality of wheels 302 for movement to supply fireproof coating material. The movement of the unit 300 is possible.

Preferably, the silo 310 is provided to be movable up and down with respect to the frame 301, and reference numeral 303 denotes a hydraulic cylinder for vertically driving the silo 310.

The silo 310 has a first valve body 311 at the bottom that controls the discharge of raw materials for the refractory material, and a stirrer cover coupled to the upper open end of the stirrer 330 at the lower end of the first valve body 311 ( 331), and after the refractory raw material is put into the silo 310, the silo 310 is lowered by the hydraulic cylinder 303 so that the stirring part cover 331 is coupled with the upper open end of the stirring part 330 It is possible to prevent the raw refractory material from being scattered to the surroundings in the process of inputting the raw refractory material stored in the silo 310 to the agitator 330 .

The silo 310 has an opening formed at an upper opening end into which refractory raw materials are input in bag units, and a lattice net 312 and a cutter 313 for cutting the bag may be provided at the opening. The refractory raw materials are introduced into the upper opening of the silo 310 in units of bags using a forklift truck, etc., and the refractory raw material bags are cut by the cutter 313 and the refractory raw materials are introduced into the silo 310. It can be prevented from scattering the refractory raw material to the surroundings in the process of putting the refractory raw material inside.

Preferably, the silo 310 is provided with a vibrator 314, and vibration occurs in the silo 310 in the process of discharging the raw refractory material stored in the silo 310, so that the raw material for the refractory material can be discharged more effectively.

The water storage tank 320 stores water, and a water supply pump is provided to supply water to the agitator 330 . A valve capable of adjusting the amount of water supplied may be provided between the water storage tank 320 and the agitator 330 . Preferably, the water level detection means capable of detecting the water level is provided in the water storage tank 320 so that the water level of the water storage tank 320 can be easily checked from the outside.

The agitator 330 is disposed at the bottom of the first valve body 311 of the silo 310, and the refractory raw material discharged from the silo 310 and the water supplied from the water storage tank 320 are input and stirred to achieve an appropriate mixing ratio. Prepare fireproof cladding.

The pump 340 is installed at one end of the agitator 330, and the fireproof coating material discharged from the agitator 330 is transferred to the spraying robot 200 via the supply hose 201. The pump 340 is provided with a compressor that adjusts the air pressure at the time of spraying the fireproof coating material to adjust the strength of spraying.

Preferably, a pressure level adjuster 341 of a push-pull type for adjusting the pressure of the fireproof coating material transmitted through the supply hose 201 is provided at the upper end of the lifting unit 100 located in the spraying robot 200. The pressure level adjuster 341 stably maintains the pressure of the fire-resistant coating material transmitted through the supply hose 201 during long-distance discharge so that spraying from the nozzle unit 230 can be smoothly performed.

Preferably, the agitator 330 and the pump 340 are composed of one integrated module, and a handle 332 and a motorized wheel 333 are provided, separated from the frame 301, and can be moved separately.

The control panel 350 adjusts the blending ratio of the fire-resistant coating material that is stirred in the agitator 330. Preferably, the control panel 350 adjusts the blending ratio of the fire-resistant coating material in consideration of the weather conditions at the site to achieve the optimal fire resistance ratio. Copy can be supplied.

4 is a configuration diagram showing a preferred embodiment of a control panel unit of a fireproof spraying automation system according to an embodiment of the present invention.

Referring to FIG. 4 , the control panel 350 is provided with a temperature sensor 411 and a humidity sensor 412 to detect the temperature and humidity of the site, and to determine the optimal mixing ratio of raw materials for the refractory material and water according to the temperature and humidity of the site. there is. At this time, the control panel 350 stores the standard blending ratio determined according to the temperature and humidity conditions as data, and extracts the optimal blending ratio from the standard blending ratio data according to the detected temperature and humidity conditions. The control panel 350 controls the first valve body 311 that controls the discharge end of the silo 310 according to the extracted mixing ratio and/or the second valve that controls the supply of water in the storage tank 320 to the stirring unit. By adjusting the sieve 321, refractory raw materials and water in an appropriate mixing ratio are put into the stirring unit 330, and stirring can be performed.

Figure 5 (a) (b) is a configuration diagram showing preferred embodiments of the scattering prevention unit of the fireproof spraying automation system according to an embodiment of the present invention, respectively, to prevent the fireproof coating material sprayed from the nozzle unit from scattering to contaminate the surroundings. prevent.

Referring to (a) of FIG. 5, the anti-scattering unit 240 according to the first embodiment is characterized in that it is a screen 241 fixed to the front of the nozzle unit 230, and the screen 241 is a robot arm. It may be fixed via a fixing bar 242 fixed to 220, and the installation location may be variously changed depending on the installation location or direction. In the first embodiment, it is shown that the screen 241 is disposed at the top of the front of the nozzle unit 230, and the fireproof coating material sprayed at a certain solid angle (Ω1) from the nozzle unit 230 is moved upward by the screen 241. The spray is limited to below a certain height.

Referring to (b) of FIG. 5, the anti-scattering unit 250 according to the second embodiment is a high-pressure nozzle 251 provided around the nozzle unit 230 and spraying high-pressure steam or air. do. The high-pressure nozzle 251 is disposed around the nozzle unit 230 and high-pressure steam or air is injected outside a predetermined solid angle (Ω2) (Ω1 < Ω2), and the fire-resistant coating material sprayed from the nozzle unit 230 is set It prevents scattering outside the solid angle (Ω2). Meanwhile, the scattering prevention units 240 and 250 of the first embodiment and the second embodiment may be used in combination.

In the fireproof spraying automation system of the present invention configured as described above, the fireproof coating material is stirred in the fireproof coating material supply unit 300 disposed outdoors, and the fireproof coating material is prepared in advance. Next, after the lifting unit 100 moves to the working position and the position is selected, the position of the moving unit 110 of the lifting unit 100 is fixed by a braking device (brake). After the position of the moving part 110 is fixed, the elevation part 120 rises to the working position, and then the spraying job is automatically performed by the spraying robot 200, and after the job is finished, check the working state and measurements are made.

This series of processes can be automatically performed by a worker away from the working position using a remote control, and at this time, the operator prepares a working area (teaching) program and inputs a teaching program for the robot 200 to spray, and at the working position A test run process for the working range of the robot arm 220 may be added prior to the spraying operation.

The present invention described above is not limited by the foregoing embodiments and the accompanying drawings, and various substitutions, modifications, and changes are possible within a range that does not deviate from the technical spirit of the present invention. will be clear to those who have knowledge of

100: lifting unit 110: moving unit
120: lift part 200: spraying robot
210: guide rail 220: robot arm
230: nozzle unit 240, 250: scattering prevention unit
300: Fireproof coating material supply unit
310: silo 320: water storage tank
330: stirring unit 340: pump
350: control panel

Claims (8)

In the fireproof spraying automation system for spraying fireproof cladding on the steel surface of a building,
a lifting unit having a movable unit provided at the bottom and capable of adjusting the height up and down;
A spraying robot installed on top of the lifting unit, including a nozzle unit for spraying the fire-resistant coating material, and a scattering prevention unit provided adjacent to the nozzle unit and preventing the sprayed fire-resistant coating material from scattering to the surroundings;
A silo equipped with a lattice net and a cutter at the upper opening, into which refractory raw materials are input through the upper opening, a water storage tank for storing water, and a refractory raw material discharged from the silo and the water storage tank disposed at the lower end of the silo. A control panel for controlling the mixing ratio of the fireproof coating material in which the supplied water is injected and stirred, a pump for pressure-feeding the fireproof coating material discharged from the stirring unit to the spraying robot, and the fireproof coating material stirred in the stirring unit Including a fireproof coating material supply unit to
The fireproof cladding material supply unit includes a frame for vertically movably supporting the silo, a temperature detection unit and a humidity detection unit for detecting temperature and humidity, and the agitation unit and the pump are configured as one module and are configured in the frame. It can be separated and moved
The control panel receives detection signals from the temperature detection unit and the humidity detection unit to determine the mixing ratio of the fireproof coating material and water;
A fireproof spraying automation system including a pressure level adjuster for adjusting the pressure of a supply hose supplying a fireproof coating material from the pump to the spraying robot at an upper end of the elevating unit. delete The fireproof spraying automation system of claim 1, wherein the silo further comprises a stirring part cover coupled to an upper open end of the stirring part, and a vibrator generating vibration. delete delete delete The fireproof spraying automation system according to claim 1, wherein the scattering prevention part is a screen fixed to the front of the nozzle part. The fireproof spraying automation system according to claim 1, wherein the scattering prevention unit is a high-pressure nozzle provided around the nozzle unit and spraying high-pressure steam or air.

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