Дробеструйная машина подвесного типа
2 ROTOR / 400 (DOUBLE DOOR) HANGER TYPE SHOT BLASTING MACHINE WITH PULSE JET DUST COLLECTOR
I. SHOT BLASTING CHAMBER
The main Cabinet is fabricated from 8 mm Steel plates. It has two Swing-in doors fitted with hangers whose rotation is controlled by a reducer. Perforated plates are provided at the bottom of the cabinet, which besides percolating the shots down also protects the screw conveyor conveying the shots to elevator. Suitable steel hangers are provided for hanging the jobs. The cabinet as well as doors are fully lined with 11-14% Manganese Steel Liners of 12 mm thick.
II. MAIN ROTOR UNIT
400 mm Dia hardened and dynamically balanced rotors are housed in a steel casing with abrasion resistant liners. The Blades, Control Cage (with 70o rectangular opening), Distributor will be also of abrasion resistant material having hardness of RC 60 to RC 65. These freely rotating Rotors are aligned with the Main Motors (10 H.P.) with V-Belt drive arrangement. These Rotors are mounted on the side of the Cabinet at different angles to give full coverage to the surface to be blasted.
III. ABRASIVE RECYCLING SYSTEM
The spent abrasive from the bottom of the machine is conveyed to the Rotary Screen and further to the elevator with the help of screw conveyor. The elevator then picks up the shots with the help of conveyor belt (125W x 4 Ply) fitted with the buckets and carries them to the gravity separator, which sieves all foreign materials except useable shots and feeds to the feed funnel attached to the feed spout which ultimately brings back the shots into the rotors thus completing the recycling.
Rotor Size : 400 mm Dia x 2 Nos.
Flow Rate : 180 kg/min/Rotor
Hanger Rotation : 10 RPM
Hook Load Capacity : 500 kgs
Initial Abrasive Charge : 1000kgs
Overall Dimensions of Machine : 1.5M [L] x 1.2 M [W] x 4.0M [H]
Overall Dimensions of Dust Collector : 1.9M [L] x 1.2 M [W] x 4.0M [H]
V. MOTOR RATING (All motors of Reputed Make Only).
Main Motors (2 Nos) : 15.0 H.P 2 Nos 1440 RPM
Elevators : 02.0 H.P 1 No. " "
Hanger Drive : 01.0 H.P. 1 No. " "
Blower : 15.0 H.P 1 No. " "
Rotary Valve : 01.0 H.P 1 No. " "
VI. PULSE JET DUST COLLECTOR
The bag filter is made of square or rectangular chambers. The chamber is of welded construction. Dust laden contaminated air enters through the bottom inlet. This dust-laden air strikes the baffle plate, resulting in heavy particles falling down and lighter particles pass through dust bags. The dust bags retain the dust particles on the exterior surface and clean air passes through outlet.
As the layer of dust is formed on the outer surface of bag, the porosity of the bag reduces. Due to reduction in porosity there is pressure drop. In order to maintain a uniform pressure drop, the dust bags are to be cleaned continuously. For cleaning the dust bags, air valves and nozzles are fitted along with solenoid valve and timer. Due to the air flow inside the dust bag the bag expands and the dust accumulated outside the bag falls down into the hopper. At a time one row of bags are cleaned.
Capacity : 5000 M³/Hr.
Dust Collector Body : Made from 12 ga MS Sheet
Area : 42 M².
Size : D – 150 x L = 2500 mm.
Quantity : 36 Nos.
Material : Polyester Needle Felt
Bag Removal : From Top
Bag Cleaning : Pulse Jet.
Solenoid : Reputed Make.
Quantity : 6 Nos.
Air Requirement : 15M³/Hr
Ventury : 36 Nos. (Aluminium Body)
Cage : 36 Nos. (M.S. Construction)
Capacity : 5000 M³/Hr.
Motor H.P. : 15.0 H.P.
Quantity : 01 No.
Drive : ½ H.P. Geared Motor.
VII. CONTROL PANEL
The sophisticated Control Panel houses all the controls including that of Dust Collector and is located at a safe distance from the machine.
Ammeter, Voltmeter, Main Isolation Switch, Hour Meter, Blasting Timer, Contactors, Push Buttons, Over-load Protection Relays and HRC Fuses etc. are of reputed make only, indicating lamps indicate the functioning of each motor. Automatic inter-locking and safety measures make it versatile and hazard free.
A Red mushroom Button is incorporated for emergency stop.
Pit type design requires 4 Nos of RCC pockets for machine & dust collector each.