Steel Tube Inner Wall Shot Blasting Machines

• After-sales Service: Video Instruction
• Warranty: 1year
• Application: Electronic Industry
• Fuel: Electric
• Type: Ring Rail Abrator
• Cleanliness: High Cleanliness
• Model NO.: QGN
• Automation: Automatic
• Certification: CE
• Feature: Critical Cleaning / Residue Free
• Condition: New
• Customized: Customized
• Transport Package: Film and Wooden Box
• Specification: Q235
• Trademark: puhua
• Origin: China
• HS Code: 8424300000
• Production Capacity: 500sets/Year

Product Description

QGN series shot blasting machines for steel tube inner wall surface cleaning
Product Description

QG series steel pipe inner and outer wall shot blasting machine  for surface treatment , wiping up the oxide coating , welding slag , appearing the metallic sheen , increasing the area of the surface , which is in favor of UV. It applies in the line of petroleum &  chemical  , steel , city centralized heating , centralized drainage etc.

Applications of our shot blasting machine: (shot blasting machine)
Descaling of forged or heat treated parts
Desanding of ferrous and non-ferrous metal castings
Deburring of metallic and non-metallic parts
Deflashing of die cast parts
Contaminant removal
 

Type	Cleaning size(mm)	Cleaning speed(m/min)	Purposes
QGW100	φ50-300	2-10	Outer wall of shot blasting machine
QGW720	φ159-720	2-6	Outer wall of shot blasting machine
QGW1200	φ219-1016	1-6	Outer wall of shot blasting machine
QGW1500	φ325-1600	1-6	Outer wall of shot blasting machine
QGW2800	φ1016-2800	1-2	Outer wall of shot blasting machine
QGN100	φ50-300	1-4	lnner wall of shot blasting machine
QGN700	φ325-720	1-2	lnner wall of shot blasting machine
QGN1000	φ720-1016	1-4	lnner wall of shot blasting machine
QGN1500	φ1016-1500	1-4	lnner wall of shot blasting machine

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 18-20% high-chromium cast iron (USA: 5115G51150 Model), which has long service life. Generally speaking, lifetime of blade is over 500 hours, and lifetime of impeller and control cage is over 800 hours. All wear parts are the market most universal national standard parts.
 

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

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

On both ends of the screw conveyor adopts triple seal protection, plus labyrinth seal cover in the interior of the end plate, middle with oil seal protection, end plate external insulate bearing and end plate. Once the abrasive and dust out, will drop from the end plate and bearing clearance, will not enter the bearing. Screw conveyor shaft with sensors detecting means, can detect the working state.
Bucket elevator
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.
The buckets are screwed to rubber belt which is stretched between two pulleys.
Belt material: Polyester.
Consists of cycloid needle wheel decelerator, upper and bottom barrel, belt, bucket and tensioning device, etc

In operation, the hopper fixed on the conveyor belt sweeps the abrasive on the bottom, and send abrasive to the top, then by way of gravity centrifugation blanking. Using polyester wire core special belt, high strength, high tensile properties. Pulley using squirrel cage structure, middle is slightly raised, each spokes are processed by machining chamfering. Both to improve the promotion of friction between the belt and pulley, avoiding the old-fashioned light
pulley slipping and sliding belt pulley on the injury, also reduces the lifting belt preload, extend the life; while avoiding scattered grit embed between the pulley and belt, affecting transmission.

Lifting capacity leaves 10% margin. Because the elevator blank by way of centrifugal gravity. Each time blanking, there will always be part of the abrasive down to the elevator, and therefore need appropriate to increase the lifting amount.
 

Separator
This machine uses most advanced full screen curtain air selection separator which includes selecting area, rotary screen drum, conveying screw, overfall sensor, abrasive stock bin and abrasive controlling valve. The abrasives mixture is conveyed into the separator screw via the elevator. Then the abrasive/sand mixture is carried out of the separator by the inner screw of the screening drum. The outer screw of the screening drum distributes the mixture along the separating are baffler of separator. Separating efficiency can reach 99.5%.

Dust removal system
The dust removal system consists of ducting system and filter cartridge dust collector. The emission standard can be lower than 100g/m³.
It is the final dust collecting system. Stable and easy operation, low noise, high efficiency and easy maintenance. This system for GBJ4-73 industrial "three wastes" emissions standards, the main fan power 11 kw, ventilation quantity is 12000 m³/h. Pulse blowback dust removing, cartridge can be easily removed for cleaning then re-use.

Ducting system. We provide piping according to different machine type. Material is usually Q235.

Electric control system

Two operating ways are available: manual and automatic.
Alarm device and overload protection device are available.

The electrical control system for three-phase ac frequency 50 HZ voltage 380 V power distribution or customize.

The machine electrical system has the following features:
The blast wheel, maintenance door, abrasive controller and abrasive circulation system are equipped with electric
interlock and self-locking system to ensure the reliable operation of the equipment and the safety of operators.
This system's blast wheel running conditions adopts the ammeter monitoring control, on the one hand, can through
the ammeter to protect blast wheel, on the other hand can monitor the blast of the empty cast, the phenomenon
such as jam, in order to adjust the equipment working state.