Huge quantities of sheet steel, profiles and fabrications have to be cleaned, treated and painted before final assembly. Corrosion protection is of paramount importance. The first part of the treatment process occurs on a preservation line, which incorporates the different stages of blasting and priming. On the preservation line, sheets and profiles are thoroughly blast cleaned and provided with a temporary corrosion protection coating.
Along with the external transport unit, a preservation line consists of a pre-heating oven, a pass-through blasting machine, a painting unit and a drying tunnel with its associated slat conveyor. Typical plate widths can vary from 800mm to 5m with process line speeds between 1.0m/min to 6.0m/min.
Key to Preservation Line
1.Cross transfer conveyor
2.Inlet roller conveyor
4.Roller conveyor shot blast machine
5.Blast machine filter
6.Paint spray chamber
7.Paint supply system
8.Filter from VOC-System
12.Outlet roller table
13.Cross transfer conveyor
Sections 1 & 2:
Cross transfer conveyor and inlet roller conveyor The first section of plant on this scale is the materials handling section, the cross transfer conveyor. The steel sheets and profiles are delivered here, and then fed into the treatment process by the Inlet Roller Conveyor.
The plates and profiles first pass through the pre-heater, this raises the temperature of the metal ready for blasting and removes any surface moisture.
Section 4: Roller conveyor shot blast machine The blast chamber removes rust and mill scale and provides a finish to internationallyrecognised preparation grades accordingto ISO 8501-1.
Sections 4 & 5:
Roller conveyor shot blast machine and filter The roller conveyor shot blast machine is the key piece of equipment in the preservation line. The position of the turbines is adapted to the specific requirement. Standard 1: When only plates and flat profiles are treated, the wheels are installed in line and the upper and the lower wheels have the same distance from the plates. This gives the fastest and most even, perfect blast result. Standard 2: A more universal blast machine is required when beams and pipes must also be treated. The wheels are arranged to ensure thorough cleaning of the side flanges. Roller conveyor machines can remove rust from sheets up to five metres wide, and have a working blasting speed of up to six metres per minute. The dust produced during the blast process is extracted by an automatic filter unit which cleans the exhaust air to a value below 2mg/m.
Paint spray chamber, voc-system and filter
The various plate and profile widths are automatically identified and are coated in a continuous process with a weld-primer coating thickness of approximately 15 - 25μm. Paint dust and solvents (if no water based paint is used) are treated according to the local requirements in an automatic filter unit and a VOC-treatment plant.
Sections 10 & 11:
Drying chamber & slat conveyor
This chamber can be heated by the exhausted air from the pre-heater (section 3). Additional circulation of high quantities of air accelerates the drying process. Lying on the support points of the conveyor cross slats (section 11), the wet primer remains undamaged at the plates pass through the drying chamber.
Sections 12 & 13:
The plates are now conveyed.
1.Owned factory,better quality control
2.Rich experienced in manufacturing and exporting
3.Competitve price and reliable oversea after-sale network
1.I want to buy this machine, Can you give me any advice?
1.1Kindly provide the dimension and shapes of workpieces to be processed, or send us some pictures about your workpieces.
1.2Kindly provide your workpieces production capacity (per day or per week).
1.3Kindly provide required shot blasting machine working hours per day.
Our engineer team will give you the most professional blasting solutions and the best offer according to your infromation.
2.What's the delivery cost & time?
Answer: kindly provide your sea port name, I will check shipping cost. Within 30-45 workdays delivery after receive advance payment.
3.This is the first time I use this kind of machine, is it easy to operate?
There are english manual or guide video that show how to use machine. We can also go to your company for training
4. If machine have any problem after I receive it, how can I do ?
Free parts send to you in machine warranty period if machine have any problem.
If the parts less than 0.5KG, we pay the postage.
If it exceeds 0.5KG, you need to pay the postage.
5.Have you exported to our country?
We have been in this field more than twenty years, we have CE,CO,ISO,FDA certificates, have exported to South America, Arab, Asia, Russia, Malaysia Spain, Australia Chilean, Mexico, Indonesia, Turkey and many more countries.
Warranty: 12 months from the date of installation
Technical support for machine life time.
Round-the clock problem solving support with our 24-hours hotline.
Timely supply of spare parts and ware parts.
Maintenance agreements tailored to the requirements of our customers.
Training programs for operating and maintenance personnel.
Installation and commissioning of new machineries.
Support to ensure your full compliance with local safety and environmental requirements.