Q69 Series Shot Blasting Machines for Steel Structures Surface Cleaning

• After-sales Service: Video Instruction
• Warranty: 1year
• Application: Electronic Industry
• Fuel: Electric
• Type: Ring Rail Abrator
• Cleanliness: High Cleanliness
• Model NO.: Q69
• Automation: Automatic
• Certification: CE
• Feature: Critical Cleaning / Residue Free
• Condition: New
• Customized: Customized
• Transport Package: Wrapped Film and Customization
• Specification: steel structure
• Trademark: puhua
• Origin: China
• HS Code: 8424300000
• Production Capacity: 500stes/Year

Product Description

Specification of Q69 Shot blasting machine

PHQ6912 shot blasting machine is a specially designed machine used in the surface cleaning for various jobs. It can realize the shot blasting automatically.

1 Components and function
Q69 shot blasting machine consists of roller conveyor system, blasting system, abrasive circulation system (separator, bucket elevator, screw conveyor), sweeping system, dust collection system and electric control system. The surface finish level is Sa2.5.

2 Conveyor system

It consists of inlet and outlet rollers, chamber inside rollers, connecting rollers.
Rollers in the blasting cabinet are protected by special alloy jacket with lifetime over 4,000 hours.
Conveyor system is driven by motors with inverter. Rollers can be controlled manually and automatically.
Step-less speed is available. Roller conveyor could move in step with the whole machine or move faster.

3 Shot blasting system
Shot blasting system consists of auxiliary chambers, blasting chamber and shot blasting machine assembly. The abrasive media like the steel shots, grits are applied on the metal surface driven by the centrifugal force from the blades. Workpieces will be de-rusted, cleaned and roughened in blasting system to reach customer's finishing level.

4  Auxiliary chamber
There are 5-7 layers of wear-resisting rubber curtain in it. The suspension type makes the exchange and access easier. The seal ability is excellent. No dust would be leaked out because of the negative pressure formed by the dust collector fan.

5  Blasting chamber
In the blasting chamber, the wall is protected by Mn13 material liner and 65Mn protective liner, which has high wear resistant performance. Chamber inside protection plate all adopt the high strength nut fixed and pressure on the inner of blasting chamber, easy tear open outfit replacement. Prolong service life, reduce the cost and reduce maintenance frequency. The steel grilling floor of blasting chamber can let abrasive fall through it freely and collected by screw conveyor.

Parameter	Q698	Q6812	Q6915	Q6920	Q6925	Q6930	Q6940
The effective cleaning width (mm)	800	1200	1500	2000	2500	3000	4000
Dimension of inlet opening (mm)	1600*800	1200*400	1700*400	2200*400	2700*800	3200*800	4200*400
The length of cleaning workpiece (mm)	1200- 12000	1200- 16000	1200- 12000	1200- 12000	3000- 12000	2400- 12000	4500- 18000
The speed of conveyor (m/min)	0.5-4	0.5-4	0.5-4	0.5-4	0.5-4	0.5-4	0.5-4
The thickness of cleaning steel sheet (mm)	3-60	3-60	1.5-60	3-60	3-60	3-110	4.5-100
Shot ball flow rate (kg/min)	4*120	4*250	4*250	6*250	6*250	6*360	8*360
The shot ball first loading (kg)	4000	4000	4000	4500	4500	8000	11000
Roll brush adjusting height (mm)	200	200	350	450	600	850	900
Air capacity (m3/h)	22000	17560	19000	19550	27758	28050	38000
Total power (kw)	90	78.3	113.5	156.6	204.8	224.55	293.6

6 Shot blasting machine assembly
This machine has 4 sets of high speed & performance blast wheels. One blast wheel has eight blades. It takes 5 to 10 minutes to replace 8 pieces of blades. Material of blades, control cage and distributor is Cr20S high-chromium which has long service life. Generally speaking, lifetime of blade is over 500 hours, and lifetime of distributor and control cage is over 800 hours. All wear parts are the market most universal national standard parts.

7  Abrasive circulation system
The system includes following parts: hopper, abrasive control valves, screw conveyors, bucket elevator, separator.

8  Screw conveyor
Screw conveyor consists of cycloid needle wheel decelerator, screw axis, conveyor shell, bearing, etc. It is a
standard conveying device and an important part of abrasive circulating system. The screw blade is made of 16 Mn.
This unit is responsible for conveying the abrasive to the elevator. Screw conveyor located at the bottom of shot blasting chamber, the spiral blade welding in the drive shaft. Conveyor motor drives screw conveyor to send abrasive to discharge outlet, then the mixed abrasive will be conveyed to elevator bottom.

On both ends of the screw conveyor adopt triple seal protection. the abrasive and dust will drop to the clearance between end plate and bearing once leak out, will not enter the bearing. Screw conveyor shaft with sensors detecting unit can detect the working state.
9  Bucket elevator
Consists of cycloid needle wheel decelerator, upper and bottom barrel, belt, bucket and tensioning device, etc. Housing of bucket elevator is welded of steel plate. There is a checking door for maintenance and replacing buckets at the bottom of the housing.

In operation, the hoppers fixed on the conveyor belt bring the abrasive to the top, then put down the abrasive to separator. Using polyester wire core special belt, with the function of high strength, high tensile properties. Pulley use squirrel cage structure, avoiding scattered abrasive embed to the gap between the pulley and belt, affecting transmission. There is 10% design Margin for elevator capacity. Because the hoist falls abrasive by centrifugal gravity, part of the material will fall back into the hoist every time. Therefore, it is necessary to increase the lifting capacity appropriately.

10  Separator
This machine uses full-curtain flow curtain air separator. It is the latest type of separator in our company, separating efficiency can reach 99.5%. The separator is one of the key components of this equipment. The design size of the separation zone directly affects the effect of the separator. The wear of the shot blasting turbines will be accelerated if the separation effect is not good.

11  Dust removal system
The dust removal system consists of ducting system and filter bag dust collector. Dust removal system includes cartridge filter, fan, motor, air duct, etc. Stable and easy operation, low noise, high efficiency and easy maintenance. The fan power is 7.5 kw, ventilation quantity is 9600 m³/h. Pulse blowback dust removing, bag can be easily removed for cleaning then re-use. The emission standard can be lower 90 g/m³.
12  Electric control system
The electrical control system for three-phase AC frequency 50 HZ voltage 380 V power distribution, alarm device and overload protection device are available. To ensure the reliable operation of the equipment and the safety of operators, the shot blasting turbines, maintenance door and abrasive circulation system are equipped with electric interlock and self-locking system. Installed circulating system accident (Unexpected) abrasive supply blocking device and alarm device.