Metal Sheet Shot Blasting and Cleaning Machine for Cleaning Rust

1. Specifications:

a. Workpiece size

    Steel plate: δ=6-20mm

    width≤2000mm

    length≤6000mm

    H-beam: 500*500mm

    Length: 1200-1500mm

b. Roller conveyor

    Max capacity: 1.0t/m

    Conveying speed: 0.5-4.0m/min(frequent steeples speed adjustment)

    Steel plate processing speed: 2.0-3.0m/min

    Driving speed reducer: BWEY27-87-3

    Motor power: 3kw

    Roller effective width: 1800mm

    Roller length: 13000mm for input and 13000mm for output

c. Impeller 

    Model: Q034II

    NO.s: 8set

    Vane rotation diameter: Φ420mm

    Shot speed: 72m/s

    Max shots quantity: 200kg/min

    Motor power: 11kw×8

d. Overall power about150Kw,(including deduster 15kw)

e. Processing per year : 20000t

f. Surface quality after processing: Sa22.5class GB8923-88

2. Description:

This equipment mainly includes: work piece conveying system, shot blast cleaning machine, dust-removal system, electrical control system, etc. The process flow is: load work piece by travelling crane—feed shot—shot blasting—clean—unload work piece by travelling crane.

Input roller: It is driven separately. The wheels use thickened seamless pipe welding structure. On one side of the roller, there is locating wheel to ensure the right position of work piece, and can prevent off-tracking effectively.

Shot blast room roller: The roller of main shot blasting room is normal roller covered by wear resistant cast iron. The using life of this wear resistant cast iron outside is not less than 1500 hours. Photoelectric switch, compressing roller switch and detecting element are fixed at a suitable position on the roller, to detect the width, height of work-piece. This will ensure that the impeller head can choose the different working way according to different work piece shape. The opening time of impeller head is depended on the distance between work piece and impeller head, which is measured by pulse signal.

Output roller: It is driven separately.

Shot blast cleaning machine: it is the key equipment of this line. Its function is removing the rust and oxide skin on surface, and prepare for next process—painting. It is mainly made up of impeller head (6 sets), cleaning room, and shot recycling system (screw conveyor, hoisting machine, separator, shot holder, and shot supply device), shot recycling scraper, shot cleaning round brush, and blower.

3. Goods supply range

a. Cleaning room assembly: main cleaning room, sub cleaning room, rubber curtain, guard plate for shot-blasting room, impeller head

b. Roller conveyor: outdoor roller conveyer, indoor roller conveyer, chain, chain wheel

c. Screw conveying system: longitudinal screw conveying system, feed screw conveying system, hoister, separator, shot supply valve

d. Deduster system: dust pipe, duster, fan, wind pipe, chimney and reverse blowing clean device

e. Electric controlling assembly: electric controlling box

f. Spare parts(vulnerable parts):