QINGDAO QINGGONG SETH MACHINERY CO., LTD.

TUNNEL TYPE SHOT BLASTING MACHINE

Tunnel type shot blasting machine is a non-standard shot blasting machine that is according to workpieces information to design. The tunnel type shot blasting machine is mainly used for surface treatment of large steel structures to achieve the removal of rust, old patent leather, and old putty, etc.

 

For large workpieces, it can use a double electric hoist to lift the workpieces through the shot blasting chamber, and the workpieces can be shot blasted. The tunnel type shot blasting machine adopts imported PLC control and has automatic/manual control mode, the whole hook through the type of shot blasting machine to achieve automatic fault detection.

 

Tunnel Type Shot Blasting Machine Basic Specification

Machine type
HTK 04/05
HTK 08/09
HTK 12/09
HTK 12/11
HTK 12/11Q
Max. workpiece Dia. x b (mm)
300*600
500*1200
800*2000
1000*2500
1200*3000
Max height (mm)
4700
5900
6700
7200
7700
Max width (mm)
4200
5100
5900
6100
6300
Max length (kg)
5000
8500
8500
10500
10500
No. of wheels x power (KW)
4x 7.5
8x7.5
12x11
12x 11
12x 11
Total installed power(KW)
41
72
143
147
157
Exhausted air quantity (m3/h)
6000
12000
18000
22000
25000
Foundation pit
Yes
Yes
Yes
Yes
Yes
 

BLASTING CHAMBER:

 

Blast wheel layout 3-D dynamic simulation design, ensures optimal shot blasting angle and distance, treat the object items on all sides with high-quality surface appearance but without overlapped and dead zone.

 

Shot blasting chamber with ZGMn13 steel guard plate, long service life.

 

Six layers of protection curtain to prevent the shot balls spatter out during blast cleaning. The curtain layers are natural rubber material with leaf spring which can automatically reset, ensure the sealing of the machine.

 

High chrome wear-resistant cast iron grate guard plate which protects the screw conveyor and prevents big clump to get into the hopper damaging the bottom screw conveyor.

 

BUCKET ELEVATOR ADVANTAGES:

 

Bucket elevator is composed of cycloidal pin gear reducer, upper and lower roller, transmission belt, bucket, closed abrasive storage hopper and tensioner. The feed port of the bucket elevator is connected with the crosswise screw conveyor, and the discharge port is connected with the screw roller sieve of the separator. In order to ensure that the belt conveyor does not skid on the surface of the drum during the bucket elevator works, the roller surface is welded with steel plates into a cage shape.

 

SEPARATOR ADVANTAGES:

 

tunnel type shot blasting machine uses advanced BE full-curtain type separator which is composed of separator part, cylinder screen, screw, hopper, and Manual valve. This separator absorbs American technology and developed by our company which is the newest style separator of our company at present.

 

The separator's working principle: The used abrasive from the bucket elevator is delivered by the screw to the upper separation area. The screw separates it evenly in the separation area along with the separator, forms a pill sand flow curtain-like a waterfall. At the same time, the blower of dust collector separates the projectile, molding sand, metal oxide skin fragment, stave projectile and dust in the flowing curtain through convulsion

 

on separator gusty area and using gravity dry separation way which will flow in the bunker after the second filtration by the bottom strainer and store up for the next circulation. The best separation effect of separator depends on the adjustment of the flow control board position of dry separation area, the adjustment of adjustment board position on filtering panel, adjusting the reed valve wind amount of air hose to realize. It can get good separation effect if the adjustment is reasonable which can keep the separation efficiency above 99.5%.

 

As one of the most professional shot blasting equipment manufacturers in China, QINGGONG MACHINERY’s activity is the design, manufacture, sales of steel plate shot blasting and painting line, sandblasting room and punching machine and over more than 40 years of experience. RFQ today!