KR20110059154A - Plate glass cleaning system and method, and its processing system - Google Patents

Abstract

PURPOSE: Plate-glass cleaning device and method, and a plate-glass processing system are provided to enhance cleaning efficiency by cleaning plate glass using ultrasonic-wave-applied water. CONSTITUTION: A plate-glass cleaning device comprises a cleaning unit(30) and a drying unit(40). The cleaning unit and the drying unit are successively arranged in the middle of a transfer path of plate glass(P). The cleaning unit comprises a water tank(31) and a spraying nozzle(32). An ultrasonic generating unit(34) is installed in the water tank. The ultrasonic generating unit applies ultrasonic wave to the water. The spraying nozzle receives the water from the water tank and sprays the water to the plate glass.

Description

Plate glass cleaning system and method and plate glass processing system {PLATE GLASS CLEANING SYSTEM AND METHOD, AND ITS PROCESSING SYSTEM}

The present invention relates to an apparatus and method for cleaning panes, and more particularly, to an apparatus and method for ultrasonically cleaning a large pane in a system for processing a large pane.

Generally, the panes undergo corrosion at the same time as the production or after the production is completed. Corrosion of flat glass surfaces is one of the biggest problems that can occur during flat glass distribution. Therefore, not only a technique for preventing or minimizing the corrosion of the glass surface is required, but also to easily determine whether the corrosion is required.

Often, the presence or absence of corrosion is determined by the availability of flat glass. The criteria for determining the presence or absence of corrosion are different depending on where the glass is used, and in general, it is determined by observing the state of the glass surface visually after washing with citric acid solution water in the manufacturing process. In other words, if there is a stain on the surface of the plate glass, there is a possibility of corrosion. In order to more accurately determine the presence of corrosion, in most cases, if the stain is not removed from the surface of the plate glass after wiping the surface of the plate glass with a wet cloth or the like and visually observed, it may be judged as corrosion. Commonly identified types of corrosion when corrosion occurs include sebum marks, cloudy phenomena, iridescent phenomena, surface irregularities, white spots, blemishes, and poor cleaning. As such, if corrosion is found on the surface of the plate glass, appropriate measures such as cleaning and polishing are removed for each type to remove the corrosion phenomenon.If the condition of the plate glass surface does not improve after the above measures, discard the glass product. Is common. In the same way as above, after the thorough quality control on the presence or absence of corrosion in the plate glass manufacturing process, it is sold and distributed to the plate glass processing plant.

In the handling of plate glass distributed from the plate glass manufacturing plant to the processing plant, the final determination of the corrosion of the glass surface is finally made during the cleaning process of the processing plant. Therefore, the final quality result on the surface of the plate glass during the cleaning process of the processing plant can reveal the defects of cleaning, distribution and storage in the manufacturing process, so the cleaning process of the processing plant plays an important role.

Until now, the plate glass processing plant washes the plate glass using the wash water in the ground water containing a large amount of the cleaning material. At this time, there was too much waste in that an excessively large amount of groundwater and detergent were needed. In addition, after the primary glass is first washed, if not enough second re-washing, accordingly, there has been a problem of increased cost due to reduced productivity and treatment cost of the wash water. Accordingly, there is a need in the art for a technique for cleaning panes with or without the use of detergents.

In addition, research on a plate glass processing system having a high efficiency by continuously processing the plate glass and cleaning the plate glass has been made in the art. Therefore, it is well suited to the above-mentioned plate glass processing system, can reduce the waste of detergent and water, and requires an eco-friendly plate glass cleaning technology.

After cutting of the pane, the pane processing system in which the chamfering, the corner cuts, and the cleaning of the pane are continuously performed would be very advantageous in terms of efficiency and economics. A conveyor is used to move the plate glass, and a washing device is installed in the moving path by the conveyor. If the conventional washing apparatus is employed as it is in the system, it can cause a lot of problems economically and environmentally. In general, the washing apparatus draws the washing water stored in the water tank into the spray nozzle installed in the upper part of the washing machine by a pump, and the washing water sprayed from the spray nozzle flows down to both sides of the glass plate to perform the washing of the plate glass. In this case, the washing water is uneconomical because it is used once and discarded, and usually contains a large amount of the cleaning agent to cause environmental pollution.

Accordingly, one technical problem of the present invention is to provide an apparatus and method for reducing the environmental pollution by a cleaning agent while increasing the cleaning efficiency by washing the plate glass with ultrasonically treated washing water.

In addition, another technical problem of the present invention is to provide a plate glass cleaning apparatus and method which is economically very advantageous by using the ultrasonically treated washing water for washing the glass plate, and circulating and reusing a certain amount of the washing water.

In addition, another technical problem of the present invention is to provide a plate glass processing apparatus that allows the plate glass cleaning process using ultrasonically washed water to be continuously performed after chamfering and corner cut processing of the plate glass.

According to an aspect of the present invention, there is provided a washing device for washing the plate glass conveyed in one direction on a conveyor, the washing device includes a washing unit and a drying unit disposed in turn in the middle of the conveying path of the plate glass, The washing unit includes a washing water tank and a spray nozzle for receiving the washing water from the washing water tank and spraying the washing water onto the plate glass, and the washing water tank is provided with an ultrasonic oscillator for ultrasonicating the washing water.

Preferably, the washing unit further includes a washing water purifying unit for purifying the waste washing water used for the washing to supply the washing water back to the washing water tank. Preferably, the washing water purification unit includes a pre-treatment tank for receiving and storing the waste wash water and a post-treatment tank for storing water purified from at least one filter before the treatment. It is preferable that the first micro filter, the carbon filter, the water softener, the second micro filter, and the reverse osmosis membrane are sequentially installed in the pipe between the water tank before the treatment and the water tank after the treatment. It is preferable that at least one of the water tank before the treatment and the water tank after the treatment is provided with a water level sensor so that the washing water purification unit operates according to the water level value measured by the water level sensor. Furthermore, the cleaning unit further includes a brush cleaning unit, wherein the brush cleaning unit is rotated by a motor drive, the upper and lower brushes to wipe the moisture by contacting both sides of the plate glass or self-finished fiber or microfiber do. The cleaning unit is preferably configured to rinse both sides of the plate glass after brush cleaning by the brush cleaning unit. The drying unit is preferably configured to remove moisture on both sides of the plate glass using an air knife.

According to another aspect of the present invention, there is provided a plate glass processing system for processing plate glass carried on at least one conveyor, the plate glass processing system for chamfering the edges of the plate glass along a transport path of the plate glass. Chamfering unit; A corner cut unit for smoothly cutting corners of the plate glass that have passed through the chamfering unit; It includes a washing device for sequentially washing the glass plate passed through the corner cut unit with ultrasonically treated washing water.

According to the present invention, contaminants adhering to the pane surface can be efficiently removed. Conventionally, the washing machine is installed in the direction of plate glass processing, but until now, the glass surface is washed with only the washing water, and a large amount of washing water and detergent are required. On the other hand, the present invention, by washing the plate glass by using the ultrasonicated wash water, it is possible to increase the cleaning efficiency even more, and to fully clean and reuse the washing water used for cleaning can contribute to cost reduction and productivity improvement have.

Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings. The following embodiments are provided as examples to ensure that the spirit of the present invention to those skilled in the art will fully convey. Accordingly, the present invention is not limited to the embodiments described below and may be embodied in other forms. And, in the drawings, the width, length, thickness, etc. of the components may be exaggerated for convenience. Like numbers refer to like elements throughout.

1 is a view for explaining a plate glass processing system according to an embodiment of the present invention, Figures 2 to 4 are views for explaining a cleaning apparatus in a plate glass processing system according to an embodiment of the present invention, Figure 5 2 to 4 is a view for explaining the washing water purification unit applied to the washing apparatus shown in FIG.

As shown in Figure 1, the plate glass processing system according to the present embodiment, as a means for conveying the plate glass, the tilting conveyor 11, chamfering feeder conveyor 12a, chamfering feeder conveyor 12b, washing machine retracting The conveyor 13 and the washer delivery conveyor 14 are continuously included. These conveyors allow the pane to be conveyed in a straight direction as indicated by the arrow in FIG. 1.

The tilting conveyor 11 redirects the plate glass cut in the previous step, and sends the redirected plate glass onto the chamfering drawer conveyor 12a. As long as it is not necessary to change the direction of the pane, other conveyors may be used instead of the tilting conveyor 11. In addition, if the process before the chamfering process and the process after the chamfering process do not need to be continued, it may also be considered to omit the conveyor before the chamfering inlet conveyor 12a. On the chamfering inlet conveyor 12a and the chamfering feeder conveyor 12b, the chamfering unit 21 for sending out the edge of plate glass, and the corner cut unit 22 for smoothly cutting a corner of plate glass are installed continuously. .

The plate glass is changed from the chamfering feeder conveyor 12b to the washing machine inlet conveyor 13. In the present embodiment, the washer drawer conveyor 13 comprises a first drawer conveyor 13a followed by a second drawer conveyor 13b. In addition, a washing machine delivery conveyor 14 is installed after the washing inlet conveyor 13. The plate glass cleaning device 3 is indicated by a dotted block in FIG. 1, and receives the plate glass from the washer inlet conveyor 13 to wash the plate glass, and the plate glass that has been cleaned is carried on the washer dispensing conveyor 14. Is conveyed in the direction. In the present embodiment, the washing apparatus 3 includes a washing unit 30 which is cleaned by washing water, and a drying unit 40 for removing water after washing. At this time, the washing machine delivery conveyor 14 is preferably disposed extending further from the washing unit 30 in the plate glass traveling direction through the drying unit 40.

Referring to FIG. 2, the washing unit 30 includes a washing water tank 31, a spray nozzle 32, a pump 33, an ultrasonic oscillating unit 34, a temperature control unit 35, and washing water recovery. A part 36 is included. The washing water is stored in the washing water tank 31, and it is preferable to use ground water as the washing water. The pump 33 supplies the washing water to the spray nozzle 32 so that the washing water can be sprayed through the spray nozzle 32. The spray nozzle 32 sprays the washing water on both sides of the plate glass introduced into the washing unit 30 by the washing machine inlet conveyor 13 (see FIGS. 1 and 3). In addition, the washing water recovery unit 36 is connected to the washing water purification unit 50, and participates in recovering the purified washing water from the washing water purification unit 50. As described in detail below, the washing water purification unit 50 purifies the washing water used for washing again and sends the washing water to the washing water recovery unit 36 in the washing water tank 31 to prevent waste of the washing water and environmental pollution by the washing water. Reduce In addition, the washing unit 30 may further include a brush cleaning unit 37 to increase the cleaning efficiency by contacting the surface of the glass, microfiber, more preferably microfiber. In addition, the drying unit 40 is for removing the water or water on the surface of the glass plate passed through the cleaning unit 30, the air blower 41, air filter 42, air heater 43, air knife And (44).

The cleaning device 3 as described above, sprays the washing water onto the surface of the pane through the spray nozzle 32, followed by a brush cleaning unit 37 to clean the surface of the pane, which will be described in more detail below. In addition, after the treatment by the brush cleaning unit 37, a rinse (rinse) process of washing the plate glass once more with washing water may be further performed. In the drying section 40, a drying apparatus composed of an air blower 41, an air filter 42, an air heater 43, and an air knife 44 is operated so as to remove moisture adhered to the plate glass surface.

3 and 4 show the main parts of the washing apparatus 3, and in particular, FIG. 3 shows the washing machine inlet conveyor 13 and the washing machine delivery conveyor 14 together with these main parts.

Referring to FIG. 3, the washer drawer conveyor 13 is comprised of first and second drawer conveyors 13a and 13b operated by separate drive motors, but this is not a limitation of the present invention. The washer delivery conveyor 14 may be driven by one drive motor to transfer the plate glass P in a linear direction from the washing part 30 of the washing apparatus via the drying part 40. In addition, the washing machine sending conveyor 14 may be divided into a washing unit conveyor, a drying unit conveyor, and a sending conveyor, and in this case, one driving motor may drive all of the above listed conveyors.

3 and 4, the washing water tank 31 is disposed below the washing unit 30, that is, below the front end of the washing machine delivery conveyor 14. In addition, the washing water tank 31 is provided with an ultrasonic wave oscillator 34, a heater 35 as a temperature controller, and a pump 33. Although not shown, a wash water recovery tank and a wash water filter may be disposed in the wash water tank 31.

As shown in FIG. 3, the washing unit 30 is provided with a brush cleaning unit 37 including an upper brush 37a and a lower brush 37b. The upper brush 37a and the lower brush 37b are preferably a fiber brush attached to a rotating rod rotating by a motor, more preferably a microfiber brush, and the upper brush 37a and the lower brush ( 37b) is arranged so that both surfaces of the plate glass P can be cleaned well.

The ultrasonic wave oscillator 34 sonicates the washing water introduced into the washing water tank 31. In the treatment process, when ultrasonic wave oscillation is continuously performed on the washing water by a self-equipped ultrasonic vibrator, the cluster of washing water molecules is smallly decomposed by the generated ultrasonic waves, and the cavitation phenomenon of water droplets in which kinetic energy is numerous ( By generating cavitation, the sonicated wash water strongly exfoliates contaminants adhering to the surface of the pane.

At this time, the ultrasonically treated washing water is sprayed to the surface of the plate glass through the spray nozzle 32, in order to control the amount of washing water, the spray nozzle 32 may be provided with a control valve (control valve). In addition, when the washing water is sprayed on both sides of the pane through the spray nozzle 32, the surface is rubbed and wiped clean by the upper and lower brushes 37a and 37b described above, and then the spray nozzle 32 is cleaned. Operate to rinse the pane with one more wash water.

The moisture attached to the surface of the plate glass (P) is operated by the air knife 44 in the drying unit 40 so that the air skims (Skimming) the glass surface, thereby removing the moisture on the surface of the plate glass (P). In order to optimally exhibit this function, the air blower 41, the air filter 42, the air heater 43 and the air duct are separately installed in the drying part 40 to assist the action of the air knife 44. Can be.

4 is a plan view schematically showing a washing apparatus according to the present invention. Referring to FIG. 4, the knife 44 is connected to the air blower 41 by a pipe. The air heater 43 indicated by a dotted line is installed at a portion where the air blower 41 is connected to the pipe, thereby adjusting the temperature of the air supplied to the air knife 44 in a preheating manner. In addition, one side of the air blower 41 is provided with an air filter 42 to use the purified air. In addition, FIG. 4 shows a washing water purification unit 50, a switchboard 4, a control panel 5, and the like, and a brush washing unit 35 is shown above the washing water tank 31. The panes can be cleaned by the cleaning device while being transported horizontally or vertically on the conveyor as described above. If the panes are flushed horizontally, a conveyor which is not blocked up or down, for example a roll conveyor, will have to be used for conveying the panes. In addition, the arrangement of the brush and the arrangement of the washing water spray nozzle of the brush cleaning unit may vary depending on whether the plate glass is washed horizontally or vertically (or inclined).

The plate glass passing through the drying unit 40 finally determines the cleaning state by visually inspecting the surface. If washing is poor, the wash water must be replaced and the washer maintained. The plate cleaning speed in the cleaning unit may be achieved by adjusting the drive motor speed of the conveyor passing through the cleaning unit.

Now, with reference to Figure 5, the washing water purification unit 50 will be described in more detail.

Groundwater is commonly used as the wash water, and the water quality is greatly deteriorated by only one use, so it is sent to the wastewater treatment plant after one use. The washing water purification unit 50 should maintain the quality of the washing water to the extent that sufficient glass cleaning is possible even if the washing water is used several times. The washing water purification unit 50 is basically a treatment tank connected to the washing water tank 31 (refer to FIGS. 2 to 4) using a pump 512 to open and close the water tank 510 before storing the used washing water. To the water tank 590, whereby purification elements such as an ion exchange resin layer and a reverse osmosis membrane filter are disposed between the water tank 510 before the treatment and the water tank 590 after the treatment. Configured to purify waste wash water.

As shown in FIG. 5, the pipe between the pre-treatment tank 510 and the post-treatment tank 590 includes a first micro filter 521, a carbon filter 522, a water softener 523, and a second micro filter ( 524, reverse osmosis membrane 526 is installed in sequence. At this time, in order to be able to pressurize and send water to the reverse osmosis membrane 526, a reverse osmosis pump (R / O pump; 525) to be installed upstream of the reverse osmosis membrane (R / O membrane; 526) Can be. A flowmeter 531 and a water quality meter 532, such as a TDS meter, are provided upstream of the post treatment tank 510, more preferably between the reverse osmosis membrane 526 and the post treatment tank 590. Further, after the treatment, an ion exchange resin tower is further placed upstream of the water tank 590 so that the water passing through the membrane and the aforementioned filter elements for washing water purification are further stored through the ion exchange resin tower and stored in the water tank 590 after treatment. You can do that. Further, by placing a water level sensor in the water tank 590 after the treatment and / or the water tank 510 before the treatment, the operation of the washing water purifying unit is such that the water level of the water tank 590 and / or the water treatment tank 510 before the treatment. It can be done automatically according to the change. Preferably, the post treatment tank 590 is connected to the wash water tank separately from the wash water tank, but it may be contemplated that the wash water tank serves as the post treatment tank.

Glass is used as a new material that is functional and refined depending on its purpose of use, so it is a material with excellent functions to satisfy the user's desire for light and communication. In an increasingly sophisticated era, the technology of glass processing was also improved.

1 is a view for explaining a plate glass processing system according to an embodiment of the present invention.

2 to 4 are views for explaining a washing apparatus that can be applied to the pane processing system of the present invention.

5 is a view for explaining a washing water purification unit applied to the washing apparatus shown in Figures 2 to 4.

Claims (11)

A device for cleaning the plate glass conveyed in one direction by a conveyor, It includes a washing unit and a drying unit disposed in the middle of the conveyance path of the pane, The washing unit includes a washing water tank and a spray nozzle for receiving the washing water from the washing water tank and spraying onto the plate glass, The washing glass tank is characterized in that the ultrasonic wave oscillator for ultrasonically treating the washing water is installed. The apparatus according to claim 1, wherein the washing unit further comprises a washing water purification unit for purifying the waste washing water used for the washing and supplying the washing water back to the washing water tank. The method according to claim 2, The washing water purification unit, characterized in that it comprises a pre-treatment tank for receiving and storing the waste washing water, and a post-treatment tank for storing the water purified by at least one filter from the pre-treatment tank. Plate glass washer. The plate glass cleaning apparatus according to claim 3, wherein a first micro filter, a carbon filter, a water softener, a second micro filter, and a reverse osmosis membrane are sequentially installed in the pipe between the water treatment tank and the water treatment tank. The apparatus according to claim 3, wherein a water level sensor is installed in at least one of the pre-treatment tank and the post-treatment tank so that the washing water purification unit is operated according to the level value measured by the water level sensor. The upper and lower brushes of claim 1, wherein the cleaning unit further includes a brush cleaning unit, wherein the brush cleaning unit is rotated by a motor drive so that the self-contained fiber or microfiber contacts both sides of the plate glass to wipe off moisture. Plate glass cleaning apparatus comprising a. The apparatus of claim 6, wherein the cleaning unit is configured to rinse both sides of the plate glass after brush cleaning by the brush cleaning unit. The plate glass cleaning apparatus according to claim 1, wherein the drying unit is configured to remove moisture from both sides of the plate glass by using an air knife. A pane processing system for processing panes conveyed on at least one conveyor, the conveying path of which panes, Chamfering unit for chamfering the edge of the plate glass; A corner cut unit for smoothly cutting corners of the plate glass that have passed through the chamfering unit; Plate glass processing system, characterized in that it comprises a cleaning device for sequentially washing the glass plate passed through the corner cut unit with ultrasonically treated washing water. The plate glass is conveyed in one direction by using at least one conveyor, and both sides of the conveyed plate glass is washed with washing water, wherein the washing water, characterized in that using the washing water ultrasonically treated by the ultrasonic oscillator. Plate glass is transported in one direction by using at least one conveyor, washing both sides of the conveyed plate glass, purifying the waste washing water already used as the washing water, washing the plate glass, characterized in that used as the washing water for washing both sides of the glass Way.

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