With the fast development of building industry and glass manufacturing, glass deep processing industry in addition has developed extensively. This short article mainly describes the wide application of flat glass washing machine in the glass industry.
1. Concept of glass washing machine
Because the special equipment applied in glass industry, glass washing machines are used for cleaning and drying original glass sheets. In accordance with cleaning method, it may be distinguished vertical glass washer(vertical glass washing machine) and horizontal glass washer. Because of the limitation of glass size and vertical structural, at present vertical glass washing machine is major used for producing I.G. unit with aluminum spacer. The horizontal glass washing machine, though 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 washing machine
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 easy relatively. The tanks can be feed with industrial water without heating. Because the outer lining of glass has not been made any treatment, there’s no special requirement for the brushes on the glass washer. At the same time, there’s also no too restrictive requirement for water PH. Concerning the air knife design, we could adopt normal structural but must ensure the wind power can be adjusted. When we clean the glass with thickness 3-19 mm, the design of distance between rollers can’t be looked at making too large. Generally, the factory would use middle or small washing machine to accomplish the cleaning and drying work for raw 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 duralite or duraseal or superspacer), the cleaning requirements to the raw glass sheets are higher. Operators should ensure the nice cleaning and drying for surface to be able to conveniently make the spacer bonding for the following steps, meanwhile, avoiding surface scratch. For many 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 type cleaning equipment comprises feeding section, washing section, drying section and output section and in the washing section, you will find three tanks which feature of cycling heating water with the suitable PH (6-9), meanwhile, the device must be installed with top quality rubber transfer rollers to avoid glass scratching. Furthermore, engineers should design special air knife structure applied in drying part of the washer, such as side-by-side multiple wind blade design, scale out vs scale up and guarantee the enough wind power and allow it to be adjustable, as the very best drying result, the air blower can blow hot air. Every one of these considerations can perform the superb drying job: completely clearing up or blowing off water in multi-angle and much area. Please also observe that to be able to match the sum total production line, the speed of glass washer also have to be regulated.
Remark: the production procedure for flexible spacer I.G. normally contains below machines: flat glass washing machine, 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. Round the production line, small assistant devices, such as gas filling machine, duraseal spool stand may also be equipped.
(3).Cleaning application for coated glass
Before washing coating glass by the horizontal washing machine, we ought to take into consideration the option of brush and water quality. In cleaning process, the coated glass sheets should not stop under brushes to avoid damaging the film. Because the hardness of each brush may vary, we ought to also check the film after cleaning to verify that when the brush do some damage on the surface of glass or not. When we clean the MSVD low-e coated glass, the best way isn’t to make use of recycled water, because these films are very 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 process may increase water corrosive, so we ought to test the sample water and confirm no side effects occur. Furthermore, before large-scale production, we also should do some trial production to ascertain that when the water can work very well in the system.
In real operation, solve the aforementioned problems, both horizontal glass washing machine and vertical glass washing machine 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 washing machine in order to complete their cleaning job. For the vertical washer, due to its structural limitations, it can’t suitable for washing large size glass. By way of choosing appropriate soft brushes and using different air knife structure, the horizontal glass washer can meet with the washing and drying demand for above glass.
3. Prospect of horizontal washing machine
In the last decade, building glass has been developed in the direction of insulating, energy-saving, safety and decoration, so the horizontal washing machines may also be improved with the 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 particular performance is that individuals are not only upgrade or improve the gear structure, but also make the specific difference on brush manufacturing, selection of conveying rubber rollers, especially enable the studies of cleaning system and air knife structure meet different special requirements. We are able to expect, along side social development in future, more and more special glasses can come out and the horizontal washing machine would also be manufactured cooperatively with them and this industry will are more specific, detailed and standardized.