Derusting blasting machine, steel structure blasting machine, FRP sand blasting machine, open type blasting machine, sand blasting and rust removing equipment, steel structure rust blasting machine
Pressure mobile sand blasting machine series products are widely used in rust removal and glass fiber reinforced plastic products, gypsum products, resin products, decorative products, stone, jade and other products.
At the same time, it is also sandblasting and three-dimensional carving of glass, marble and other stone materials, sandblasting for shipbuilding, surface treatment, derusting,
Professional and efficient processing machine for anti-corrosion treatment and fancy sandblasting of denim clothing.
The automatic pressure-removing steel structure rust-proof and anti-corrosion sandblasting machine produced by Dongguan Meijun sandblasting equipment is an automatic sandblasting machine with automatic safety protection performance operated by one person. The air pressure is generated when the machine is started, and it is removed when the machine stops
Air pressure, all operations are controlled by only one person through the control switch on the hand, which is simple and applicable. At the same time, the wearing parts are separated from the column parts, reducing the cost of replacing consumables.
Our tanks are welded with large machines to ensure product quality. Our tanks have been finely sanded and sandblasted to give them strong rust resistance.
Instruction manual for pressure relief automatic exhaust sand blasting machine produced by Meijun, welcome to understand!
Sand cylinder diameter: 600MM Sand cylinder height: 1300MM
Sand tank volume: 0.3 cubic
Descaling efficiency: 15-30 square / hour
Air consumption: 3 m3 / min (single shot)
Air source pressure: 0.6-0.7MPA
Divided by configuration:
1) Basic type: pure manual type, which is basically a pressure-proof assembly.
Intake valve (ball valve control switch) + sand control valve (ball valve control switch). Without electric control and pneumatic control system, 2 people need to operate at the same time, one person takes a gun to sand the workpiece, and the other controls the machine switch.
2) Holding pressure type: electric control type or pneumatic control type
Intake valve (aluminum alloy globe valve) + sand control valve (EMPAIR air control sand valve or manual sand valve).
The sand tank always maintains pressure and needs to be manually depressurized.
The characteristic is: No matter whether the switch is turned on or off once, as long as the exhaust ball valve on the top side of the sand tank is not opened, the pressure in the cylinder will not be removed.
(Except for manual sand valve self-draining: it will cause serious sand accumulation in the sand pipe), suitable for short-time point blasting.
3) Pressure relief type: electric control type or pneumatic control type
Intake valve (aluminum alloy globe valve) + sand control valve (EMPAIR air control sand valve or manual sand valve) + automatic air control exhaust valve.
When sand blasting works, the pressure in the tank is the working pressure. When the tank is stopped, it is automatically vented. The pressure in the tank is 0, which is suitable for long-term large-area blasting.
The pressure in the tank will never exceed the limit pressure, which plays a role in ensuring safety and is also a necessary assembly method for automatic sand return.
1.Compact structure, superior performance, simple and convenient operation.
2.The design and production of the cylinder body comply with the pressure vessel standard, which is safe and reliable.
3.Using standard universal parts, easy to replace and lower cost.
4.Instantaneous control function is installed, which adopts electric control or pneumatic control to meet different needs of customers and can be operated by one person alone.
5, the shell is sandblasted and uses advanced anti-rust spray paint to prevent rust.
6, add wheels, easy to move.
Advantages of using pressure blasting machine:
It can replace the pickling and phosphating process without involving the problem of sewage discharge. Quick blasting and rust removal, while changing the surface roughness, it can also remove welding slag, burrs and flashes.
High efficiency, low cost and good quality are unmatched by traditional chemical and manual rust removal. After blasting, the quality of the paint is good, and the coating has a long life. It is a universal process currently used internationally.
Working principle of pressure blasting machine:
This machine uses a pressure-feeding sand blasting (peening) mechanism, which uses compressed air to flow at high speed in a high-pressure tank to form a high-pressure effect.
The compressed air is sprayed from the nozzle of the spray gun to the surface of the workpiece at high speed to achieve the purpose of sandblasting.
Application range of pressure blasting machine:
Mainly used for: surface cleaning, engraving, spray processing, descaling, burrs, welding scars, spraying glass shots, strengthening the surface of decorative parts. Can also be used for spray and plating pretreatment
Process (all surface treatments to improve the adhesion of the coating surface)
Pressure mobile sand blasting machine products are widely used in
1) Sandblasting of glass, marble, ceramic tiles, molds, fitness amusement equipment and other surfaces and three-dimensional carving and carving operations;
2) Surface blasting of steel structures for shipbuilding, bridges, railways, containers, petroleum pipelines, chemicals, mining facilities, water conservancy projects, port construction, etc.
3) Fancy sandblasting of denim clothing;
Sand used for blasting and rust removal requires particles that are hard, angular, dry and free of dirt and other impurities;
Quartz sand is better, but coarse river sand is also available. At the same time, sand transportation conditions should be considered.
Force and other factors; the particle size of the sand is preferably 0.5 ～ 1.5mm, it should be dried and stored before screening
Inside and inside the shed, the size of the sieve holes are: coarse sieve 40 ~ 48 holes (particle diameter 1.2mm), fine sieve 372 ~ 476 holes
(Particle diameter 0.3mm)
Air source control:
The compressed air must be processed by a cooling device and an oil-water separator to ensure that it is dry and free of oil;
The oil-water separator must be cleaned regularly;
The air pressure of the air compressor is 6.0 × 105 ～ 6.5 × 105Pa.
0.5 × 105 to 1.0 × 105Pa. General sand bucket pressure is 4.5 × 105 ～ 5.5 × 105Pa
4.0 × 105Pa.
Job protection requirements:
Before sand blasting, the non-blast blasting parts should be protected.
Before blasting, check whether the various pipes and control valves of the blasting machine are connected, whether they are in the appropriate switch position,
Is the protective tool, safety belt (rope) and oxygen supply device worn by the blaster safe and reliable, and the wear of the nozzle, when the orifice
The nozzle should be replaced when the diameter is increased by 25%.
The distance from the nozzle to the surface of the base steel during sand blasting is preferably 100 to 300 mm.
The angle between the spray direction and the surface normal of the base steel is preferably 15 ° ～ 30 °. After sandblasting and rust removal, before the next process,
In case of rain or other conditions that cause the surface of the base steel to be wet, after the environment reaches the construction conditions, use a dry
Compressed air is used to dry the surface after construction. If sand blasting is required, the abrasive requirements must not be reduced to avoid reducing the roughness.