Sandblasting Room

Sandblasting room is a kind of rust removal equipment, that can replace traditional slab rust-re-moved technique. While changing the surface roughness, it can also remove welding slag, burrs, and flash. High efficiency, low cost and good quality, unmatched by traditional chemical and other rust removal equipment. Which is primarily for cleaning big steel structural parts, vessel, truck chassis to remove the rusty spot, rusty layer and scale cinder on steel to obtain a uniform, smooth and glossy metal surface allowing improved coating quality and higher anti-corrosion performance.

The main feature of sandblasting room is that the operator works in the sandblasting chamber, through manually control blasting gun to finish blasting work, which can ensure 100% rust removal. Protective clothing and helmet protect the operator from abrasive shock and ventilation provides fresh air through the helmet.

What is Sandblasting Room

Sandblasting room is also called air blasting booth, abrasive blasting room. It is suitable for clean the oxide scale, rust and coating of medium structure parts, irregular parts and batch processing parts surface, which can increase the adhesion between the workpiece and coating.

The sandblasting room is powered by air compressed, which can make the abrasive and compressed air fully mixed. After speed up via the venturi nozzle, the abrasive and air mixture spray to the metal surface with the high speed to clean the oxide scale, rust and oil, so that achieve to the process requirements. In the rust removal progress it will have a large amount of dust and the sprayed abrasive will splash around. So the entire sandblasting progress need to be carried out in a closed space with negative pressure.

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Industrial Sandblasting Room

This series machine uses the method of multistep fixed-point rotation blasting and cleaning, removing the sand and oxide skin on the casting surface, to reappear metal color. It is mainly used in car accessories and bolster, side frame, coupling, and frame of trail hook vehicle parts, at the same time also can clean the casting and small batch workpiece with similar size.

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General Purpose Sandblasting Booth

Sandblasting booth designed to meet specific process requirements and design of special equipment. By blasting can remove surface dirt complexity, scale, welding slag, waste paint, etc., so that the surface smooth, while reducing stress within the workpiece, the workpiece surface to be strengthened so as to improve the quality of surface and internal purposes.

This equipment adopts manual shot peening, after removing surface rust, surface finish and roughness of the cleaning workpiece in accordance with the relevant standards. Removal of complex workpiece surface dirt, scale, welding slag, waste paint, etc., make the workpiece surface bright and clean, also can reduce internal stress of workpiece, the workpiece surface strengthened in order to improve the adhesion and corrosion resistance of the paint.

This machine is a special flat car reciprocating blasting machine, which consists of blasting chamber body, trolley systems, shot peening, spiral conveyors, elevators, separators, projectile control systems, lighting systems, dust removal system, electric control system system components

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Abrasive Blasting Room

Abrasive blasting room also called sand blasting room, play room, suitable for large work piece surface cleaning, rust removal, increase the work piece and the adhesion between the coating effects.

Sandblasting room according to the abrasive way of recycling peening room is divided into: mechanical recycling type shot blasting room and artificial recovery type shot blasting room.

The artificial recycling sandblasting room due to the economic and practical, simple, convenient, simple materials, greatly reduced the cost of sandblasting room cost, also accepted by many customers, especially small and medium-sized enterprises.

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Air Blasting Room

Abrasive blasting cabinet is our company in introducing foreign advanced cell technology based on the floor, , the development, the design of the environmental protection cellular gush arenaceous (shot) room by ourselves, according to customers’ product characteristics, sandblasting design requirements, etc. Cellular floor gush arenaceous room is the wind power by fan for abrasive materials, will back through the pipe to cyclone separator suction of separation and finally into gush arenaceous system recycling.

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Container Blasting Room

With a standard range of containerised rooms in 20, 30 or 40ft, or the option of self-build packages, any size component can be catered for.

A wide selection of abrasive recovery floors and dust collection systems are available to suit any size room. Sweep in systems powered by compressed air are available off the shelf with built in abrasive cleaning and capacities of 2 or 4 tonnes per hour recovery rates.

Fully automatic floors with screw conveyers, bucket elevators, and storage hoppers can be supplied to customer specifications or customised in self assembly kits with drawings.

Standard Container Blast Room 20’0 x 30’0 x 40’0 x 8’0 wide and 8’6″/9’6″ high with semi or fully automatic abrasive recovery.

Custom Built Containers up to 50’0 long, 14’0 wide and 12’0 high with semi or fully automatic abrasive recovery. Handling equipment – either rail bogies or overhead cranes can be incorporated as required.

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Movable Container Blasting Room

With increasing concerns about operator safety and environmental impact, QGMA designed movable container sandblasting room.

The basis of our transportable sandblasting room is a new robust shipping container which lends itself perfectly for conversion. It can transported from one place to another place. The container is then modified to house a host of equipment providing a self contained portable blast room, dust collector system, simply requiring compressed air and electrical connections.

The equipment has been installed and debugged in our workshop. Customer can directly use the sandblasting room when it is delivered to factory, doesn’t need to install again.

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Features of Sandblasting Room

Designed by customers requirements and workpiece characteristics. There is no need to dig the complex foundations, it can greatly save the construction cost;
Have its own abrasive reclaim system, so it can not jam abrasive in the reclaim system. It not only have high recovery rate but also have high abrasive utilization rate;
The mainly electric components are all use well-known brand at home and abroad, which have stable performance, long service life and simple maintenance and other advantages;
Have high definition visibility, the inlet opening adopt the naturally replenishes the air and save a part of the energy consumption;
Adopt two-stage dust removal, the first stage is use the settling chamber to separate the big particles and dust, the second stage use the filter cartridge to filter the dust. So that the cleaning efficiency can up to 99.5%.

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Working Principle

Before the sandblasting, we need to do some preparation works. Such as move the workpiece into the sandblasting room chamber, connect the electric and pneumatic control device, turn on the lights, wear the protective clothes and turn on the ventilation device on the helmet.

Then close the doors, hold the sandblasting gun, open the switch and clean the workpiece. The used abrasive will fall into the reclaim system, then through the screw or scraper transport the abrasive into the bucket elevator. Via the air-wash separator, the abrasive, broken abrasive, the rust slag and dust will be separated.

The qualified abrasive will directly into the storage silo to recycle to use, the broken abrasive and the rust slag will fall into the waste box. The dust will be sucked away by the dust collector and absorbed on the surface of the filter cartridge. The pulse valve of the dust collector will generate pulse signals to release the air compressed stored in the air bag regularly, and instantly form an expanding airflow to act on the inside of the filter cartridge. The dust adsorbed on the surface of the filter cartridge is shaken off and dropped into the lower dust collect box for regular cleaning.

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Blasting Room Wall

The blast room walls are fabrication by sandwich panel with noise attenuation interlayer, which total thickness is 50mm. To prevent wear, the inside of the chamber adopts 5mm thick wear-resistant rubber guard board for protection. Each sandwich panel (2 meters) has a strong frame made from the square tube. This ensures they will not deformation during transportation and installation, the grinding and painted square tube will be far enough to be resistant the corrosion by the natural environment.

The dust removal tuyere set up on the principle of the “top feed, bottom suck, top emissions”, so that it can make the dust flow to the bottom as far as possible to increase the operator’s visibility.

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Blasting Booth Door

Sandblasting room doors have a variety of choices.

Double swings door
Roller shutter door
Sliding door
Access door

Depending on your requirements, you can choose to have only one door or two doors. A door workpiece enters the sandblasting room through this door and exits through this door. Two units doors is flow-through design with doors on both ends of the sandblasting room where objects enter from one end, and exit through the door. An exclusive sealing system prevents the loss of abrasive materials and makes the closing of the doors possible without effort.

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Lighting

Design the number of lights according to the size of sandblasting room. Light fixtures use high efficiency LED lamps, which enables maximum utilization of the luminosity, to ensure the sufficient brightness in the room, and the indoor operator can clearly see the workpiece and the surface effect after blasting. The fastening system of the blasting room allows easy removal for maintenance.

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Material Handling System

One of the most important considerations when designing the sandblasting room is how the object items blasted are going to be moved in and out of the blast room.

These are some very important questions that need to be asked about material handling…

Every facility is different, if you are designing a new facility, you have one chance to get it right.

If upgrading an existing facility, you need to look at what material handling options will work

in with what I already have….There are many options and ways to move product through your

blast and paint area. When it comes to material handling, there are several options that can speed up moving objects in and out of the enclosure.

Forklift Transportation

Forklift transportation requires the floor of the blasting room to be level with the floor of the workshop to ensure that the forklift can enter the blasting room smoothly, so the blasting room needs to have a foundation pit.

Trolley (rails in the floor)

Trolley is also a great solution for heavier items. The objects to be blasted is placed on the trolley outside of the room and then get in to be blasted. The wheeled trolley stays in the room during blasting and can be mounted on tracks or rails when required.

Monorail

Monorail systems can be installed inside the blast room or outside with a brush seal providing containment of abrasive within the room. Monorails allow objects to be hang below them and moved in and out of the room and can be motorized.

Sandblasting Machine

According to the number of operators in the sandblasting room and requirements, customer can choose the size and number of sandblasting pot. QGMA sandblasting tank adopts manual remote control spray gun, and the operator controls the nozzle sand blasting or air injection. This can be used to remove floating ash from the working surface after blasting.

Boron carbide nozzle with high efficiency, good wear resistance, long life, strong injection force, to ensure uniform, high quality cleaning work.

The working process is as follows: power on, when the lower level gauge of the blasting machine touches the abrasive, the air intake of the tank is closed, and the blasting machine and air jet control system get the signal to start the operation. Once the lower level gauge cannot touch the shot material, the feeding mechanism starts to work. When the upper level gauge of the shot blasting touches the abrasive, the feeding mechanism stops working and the tank body is inflated and closed.

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Abrasive Reclaim System

Abrasive reclaim system including floor reclaim system, bucket elevator and air wash separator.

Abrasive from floor reclaim system into bucket elevator, then into the air wash cleaner system, and then the abrasive that can used into hopper then into abrasive dosing unit, can not used abrasive get out the reclaim system.

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Floor Recycling System

There are two types of floor recycling systems, pneumatic recycling and mechanical recycling. Pneumatic recovery, also known as honeycomb recovery, is completely absorbed from the ground to the separation by the fan. Mechanical recovery is a form of recovery of abrasive scattered on the ground into elevator by mechanical movement, now the most used is mechanical recycling.

According to requirements, there are 6 kinds of floor recycling systems to choose.

Sweep-In/ Shovel Chute Reclaim System

Sweep-in / shovel chute reclaim system is the basic and the most economical floor reclaim system.

The shovel chute is directly connected to the bucket elevator. After the work, the workers push the abrasive into the shovel, and then directly into the elevator, to achieve the purpose of recycling. More suitable for small size sandblasting room.

Single screw partial reclaim system

Single screw partial reclaim system means is only one unit screw conveyor on the floor. According to the requirements, the position of the screw can be changed at will. This is the most affordable solution for small and medium-sized sandblasting rooms. The screw can be replaced with a scraper.

Located at the bottom of the cleaning room, when working, the screw conveyor rotates to transport the abrasive to the discharge port, and then flows into the bottom of the bucket elevator from the discharge port. The spiral blade is welded to the drive shaft, and the entire spiral shaft is processed as a whole after welding, thus ensuring the coaxiality of the spiral shaft. The inner and outer circles of the spiral blade are processed by a special process and then stretched. The pitch and outer circle dimensions are very accurate, which improves the life of the spiral.

The sealing of the bearing adopts labyrinth discs, bearing pads, etc., so as to better protect the bearing from damage due to the entry of shot sand, maximize the service life of the bearing, and reduce the maintenance cost of the equipment.

H shaped partial reclaim system

H shaped partial reclaim system is composed of one unit crosswise screw conveyor and two units scraper recovery system. Of course, the screw can be replaced with a scraper. What is scraper?

The scraper conveyor is composed of air cylinders, connecting rods, scrapers, rollers, etc. Simple structure, simple installation and maintenance, safe and reliable, long life, low maintenance cost. When the plate conveyor is working, the cylinder pushes the scraper assembly, and the scraper pushes the abrasive forward by one cylinder stroke under the action of the stopper. When the scraper returns to its original position, the scraper automatically tilts up and will not bring back abrasives. Improve transportation efficiency and reduce energy consumption.

The drive system uses a cylinder, which is stable and reliable, and has a low failure rate; the scraper adopts step-by-step propulsion, the material moves uniformly and reliably, and has low noise and long service life; the required foundation depth is very small, only 0.3-0.5 meters deep, which is greatly Reduce the cost of foundation production. It has incomparable superiority in resistance to harsh environments such as humidity.

U shaped partial reclaim system

U shaped reclaim system is very similar with H shaped reclaim system, the different is the position of the screw conveyor.

H reclaim system the screw conveyor in the middle and U reclaim system the screw conveyor on either side.

Full floor reclaim system

The full floor reclaim system utilizes one unit screw and multiple scraper recovery system assemblies to create a fully automatic, high volume abrasive reclaim system where 100% of the abrasive blast media is returned to the bucket elevator during the blasting operation. This abrasive blast reclaim system is well suited for pass-thru and/or high production requirements.

The floor of the sandblasting room adopts a metal grille, which is conducive to the collection and discharge of steel grit on the one hand, and is conducive to the safety of workers walking on the other hand. In order to prevent large impurities and foreign bodies from entering the sandblasting tank through the conveyor during working hours, blocking the spray gun. This equipment is equipped with a filter in the lower part of the grille (floor recovery) to prevent impurities and foreign objects from entering. The cleaning of impurities and foreign objects is very convenient. You can completely clean up the grille laid on the floor inside the house, so as to ensure that the recycling pipe network can work smoothly for a long time. ;

The floor grille is welded with 40*4mm flat steel bars. The specific format and quantity are determined by the size of the house and the track spacing of the work trolley. Generally, the floor grid inside the sandblasting room has a bearing capacity of less than 200kg per square meter. If a larger floor grid bearing requirement is required, the customer needs to put forward special design requirements.

Bucket elevator

The bucket elevator is composed of a reducer, upper and lower pulleys, conveyor belts, buckets, closed shells and tensioning devices.

The bottom inlet of the bucket elevator is connected with the floor reclaim system, and the top outlet is connected with the air wash separator.

When working, the bucket fixed on the conveyor belt scrapes the steel shot at the bottom of the elevator, and then is driven by the elevator motor to send the steel shot to the top of the elevator, and finally fall down by centrifugal gravity, and the steel shot is input air wash separator.

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Air wash separator

During the descending process of the mixture of steel shot and residue, it is pushed by the horizontal airflow to the particles, thereby forming a skewed curved trajectory.

Due to the difference in the specific gravity and particle size of the particles, the degree of deflection is not the same, so that the steel shot and the residue is separated, the dust is sucked into the dust collector for purification treatment, broken pellets, oxide skin, etc. enter the waste storage hopper, and qualified steel shots and some small debris are screened again into the storage hopper for recycling.

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Dust removal system

As the dust extraction fan extracts the gas and dust in the blasting room, the airflow outside the blasting room enters the blasting room through the coarse filter on the top of the blasting room, and then enters the blasting room through the uniform flow plate on the top of the blasting room. In the sandblasting studio, a top-down airflow is formed in the cross-section of the sandblasting room, and the dust and dirt in the sandblasting room will enter the dust extraction port with the airflow, and finally enter the dust removal system through the dust removal pipe, and then pass through the dust removal system. The filtered, clean air is

discharged into the atmosphere, and the dust and dirt are stored in the dust cylinder for regular cleaning.

In the sandblasting room, the dust removal system adopts a circular dust removal method with upper air intake and side suction air. The clean air enters the sandblasting room from the top of the room body, and the dust removal fan sucks the polluted air in the room into the dust collector through each dust suction port for collection and processing.

Since the dust recovery suction inlets of the environmentally friendly pneumatic recovery sandblasting room are all arranged under the room body and on the sidewalls, the airflow drives the dust to always move from top to bottom, and the dust is always suppressed in the lower part of the sandblasting room.

The dust concentration in the space above 0.5 meters in the sandblasting room is very low, which provides high visibility and a good working environment.

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CONTROL SYSTEM

The electric control system is mainly composed of dust-proof electric control cabinet, PLC programmable controller(optional), ampere meter, emergency stop, manual key switch, contactor, button, indicator, control element, and so on.

The electrical control of this sandblasting room can realize automatic system control (ie interlocking function), and can also realize individual control of each unit. Automatic control is suitable for normal production use, and separate control is especially necessary for equipment maintenance.

PLC programmable automatic control has manual and automatic states, and has a switching function. When the system is in a maintenance state, each device can be controlled separately; when the system is in a normal state, each device is operated according to a predetermined procedure, and has a certain interlocking function.

Each equipment has good electrical protection. When the equipment fails, it can be safely and reliably protected, and automatically stop the lower-level operation and send out an alarm message. After the fault is removed and a normal instruction is issued, it can be restarted.

In the control of the fan, the star-delta starting method is adopted to reduce the starting current of the motor. In terms of safety, the control loop is equipped with overload, reverse and phase loss protection functions, which more effectively protects the motor, Avoid damaging the motor due to overload, reverse and phase loss. In the circuit design, try to use standard modules, reduce the number of electrical components, reduce the amount of wiring, and reduce the source of failure of the electronic control system to a minimum.

There are junction boxes on each control device, which is convenient for disassembly and assembly of the equipment and convenient for the maintenance of electrical appliances.

All switches, power systems, motors, buttons, signal lights, and main switches of the electronic control system are controlled and detected by the control cabinet. Two cooling fans are installed on the control cabinet. The main circuit part is equipped with overload protection and leakage protection. When the circuit is short-circuited or there is The power supply can be cut off in time in case of electric leakage. The sandblasting host is equipped with a loading level alarm switch. When the system detects that the sand in the sandblasting tank is higher than the loading level, it will give an audible and visual alarm.

Emergency stop switches can be set in the control cabinet and the sandblasting room to quickly stop the operation of the entire equipment when an accident occurs, effectively ensuring the safety of personnel and equipment.

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Application Industries

Pretreatment: Electroplating, painting, spraying, etc. are all covered by sandblasting before processing, the surface is cleaned, and the adhesion and corrosion resistance of the covering layer are greatly improved.

Cleaning: Casting parts, stamping parts, welding parts, heat treatment parts and other metal workpieces to remove oxide scale, residue, dirt; surface cleaning of non-metallic products, removing black spots on the surface of ceramic blanks and reducing paint patterns, etc.

Refurbishment of old parts: refurbishment and cleaning of all moving parts such as automobiles, motorcycles, and electromechanical equipment. At the same time, fatigue stress is eliminated and service life is prolonged.

Mold processing: argon matte surface treatment of the mold surface, graphic production, and mold cleaning, so as not to damage the mold surface and ensure the accuracy of the mold.

Strengthening: Increase the surface hardness of metal parts and eliminate stress, such as surface treatment of aircraft blades, springs, machining tools and weapons.

Etching anti-skid processing: metal products, non-metal products surface etching patterns, text and anti-skid treatment, such as: marble, anti-skid handles, seals, stone inscriptions, etc.

What is Sandblasting Room

Industrial Sandblasting Room

General Purpose Sandblasting Booth

Abrasive Blasting Room

Air Blasting Room

Container Blasting Room

Movable Container Blasting Room

Features of Sandblasting Room

Working Principle

Blasting Room Wall

Blasting Booth Door

Lighting

Material Handling System

Forklift Transportation

Trolley (rails in the floor)

Monorail

Sandblasting Machine

Abrasive Reclaim System

Floor Recycling System

Sweep-In/ Shovel Chute Reclaim System

Single screw partial reclaim system

H shaped partial reclaim system

U shaped partial reclaim system

Full floor reclaim system

Bucket elevator

Air wash separator

Dust removal system

CONTROL SYSTEM

Application Industries

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