With the fast development of building industry and glass manufacturing, glass deep processing industry has additionally developed extensively. This information mainly describes the wide application of flat glass automatic washer in the glass industry.
1. Idea of glass automatic washer
As the special equipment applied in glass industry, glass washing machines are useful for cleaning and drying original glass sheets. Based on cleaning method, it could be distinguished vertical glass washer(vertical glass washing machine) and horizontal glass washer. Due to the limitation of glass size and vertical structural, at present vertical glass automatic washer is major useful for producing I.G. unit with aluminum spacer. The horizontal glass automatic washer, although it takes more area, has been applied in more extensive fields due to its more high efficiency and excellent structure.
2. Wide application of flat glass automatic washer
Now we majorly introduce the wide application of horizontal glass washing machine.
(1). Cleaning application for ordinary glass
The cleaning procedure for flat washer for ordinary glass is simple relatively. The tanks may be feed with industrial water without heating. Because the top of glass has not been made any treatment, there’s no special requirement for the brushes on the glass washer. At once, there’s also no too restrictive requirement for water PH. Concerning the air knife design, we can adopt normal structural but must ensure the wind power may be adjusted. Once we clean the glass with thickness 3-19 mm, the look of distance between rollers can’t be looked at making too large scale out vs scale up. Generally, the factory would use middle or small automatic washer to complete the cleaning and drying work for raw little bit of ordinary glass.
(2).Cleaning application for warm-edge insulating glass
For the production of warm edge insulating glass (with flexible spacer, such as for instance duralite or duraseal or superspacer), the cleaning requirements to the raw glass sheets are higher. Operators should ensure the great cleaning and drying for surface to be able to conveniently make the spacer bonding for the following steps, meanwhile, avoiding surface scratch. For most developed countries and areas in the world, to be able to make the entire warm edge I.G.U, more and more factories adopt horizontal washing machine. This kind cleaning equipment comprises feeding section, washing section, drying section and output section and in the washing section, there are three tanks which feature of cycling heating water with the suitable PH (6-9), meanwhile, the machine must certanly be installed with good quality rubber transfer rollers in order to avoid glass scratching. Additionally, engineers should design special air knife structure applied in drying area of the washer, such as for instance side-by-side multiple wind blade design, and guarantee the enough wind power and make it adjustable, as the very best drying result, the air blower can blow hot air. Each one of these considerations can perform the excellent drying job: completely cleaning up or blowing off water in multi-angle and much area. Please also observe that to be able to match the total production line, the speed of glass washer also need to be regulated.
Remark: the production procedure for flexible spacer I.G. normally contains below machines: flat glass automatic washer, flexible spacer assembly table, glass assembly table, heated roller press machine and glass convey table. Total production line has two-side or single side establishment. Glass is conveyed to glass washer in the horizontal state then starts its first process until in order to complete hot-press sealing job in heated roller machine. Around the production line, small assistant devices, such as for instance gas filling machine, duraseal spool stand will also be equipped.
(3).Cleaning application for coated glass
Before washing coating glass by the horizontal automatic washer, we must consider the option of brush and water quality. In cleaning process, the coated glass sheets should not stop under brushes in order to avoid damaging the film. As the hardness of each and every brush may be different, we must also check the film after cleaning to confirm that when the brush do some damage on the surface of glass or not. Once we clean the MSVD low-e coated glass, the simplest way is not to make use of recycled water, because these films are extremely sensitive to the PH value, if using recycled water, operators should monitor water PH value constantly.
Using demineralization or deionization water to spray coated glass to guarantee no residue when drying glass. However, the technology of this method may increase water corrosive, so we must test the sample water and confirm no side effects occur. Additionally, before large-scale production, we also have to do some trial production to find out that when the water can work nicely in the system.
In real operation, solve the above problems, both horizontal glass automatic washer and vertical glass automatic washer can well complete cleaning and drying job to coated glass
(4). Cleaning application for other glass (such as tempered, laminated and safety glass)
As above glass top features of large size, thickness and weight, factories often use horizontal automatic washer in order to complete their cleaning job. For the vertical washer, due to its structural limitations, it can’t suited to washing large size glass. By means of choosing appropriate soft brushes and using different air knife structure, the horizontal glass washer can meet up with the washing and drying demand for above glass.
3. Prospect of horizontal automatic washer
In the last decade, building glass has been developed in the direction of insulating, energy-saving, safety and decoration, so the horizontal washing machines will also be improved with the exact same direction. Particularly after the solar glass, conductive glass, foam glass and other special glass are widely put in market, the factoies put forward higher cleaning requirements to above special glass. The precise performance is that people aren’t only upgrade or improve the equipment structure, but additionally make the particular difference on brush manufacturing, choice of conveying rubber rollers, especially enable the studies of cleaning system and air knife structure meet different special requirements. We can expect, along with social development in future, more and more special glasses will come out and the horizontal automatic washer would also be manufactured cooperatively together and this industry will become more specific, detailed and standardized.
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