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Large scale shot blasting machine for inner wall of steel pipe

Author: admin Source: This station Time: 2015-12-30 11:29

The shot blasting machine for inner wall of steel pipe is suitable for shot blasting of steel pipe and steel pipe products. It can remove oxide layer, welding slag and other impurities, and present metallic luster, which is conducive to painting and coating of workpiece. According to the size of the steel pipe, the hydraulic shot blasting machine can be used to clean the inner wall of the steel pipe.
The shot blasting machine for the inner wall of steel pipe is used to remove rust and clean the inner wall of steel pipe through a shot blasting device which can be penetrated into the steel pipe. The scheme supports the cleaning of the inner wall of steel pipe with larger diameter. The pneumatic loading and unloading system is installed on the conveying trolley of the shot blasting machine on the inner wall of the steel pipe, which can realize automatic loading and unloading on both sides. After the workpiece is placed in the working position, the moving sealing chamber moves to the direction of the fixed sealing chamber driven by the reducer, so as to seal both ends of the steel pipe. During the cleaning process of the shot blasting machine for the inner wall of steel pipe, the pneumatic conveying system is adopted for the shot and the recycling system. The shot can be recovered through the negative pressure of the dust removal system in the steel pipe. When it reaches the sealing accessory chamber, due to the space of the auxiliary chamber, the pneumatic conveying force will be increased instantly, and the projectile will fall on the belt conveyor of the projectile recovery.
The steel tube is rotated forward and backward by the rotating speed reducer

The shot blasting cleaning machine for steel pipe inner wall is composed of shot blasting device, front and rear sealing chamber, elevator, separator, belt conveyor, workpiece rotation and traveling mechanism, ventilation and dust removal system, hydraulic control system, pneumatic control system and electrical control system (Fig. 1).

(1) Special shot blasting device for inner wall

Shot blasting machine is the core component of the equipment, which is composed of the following main parts: shot wheel, directional sleeve, blade, impeller, impeller, impeller drive disk, spindle, etc. The shot blasting device has the advantages of simple structure, convenient maintenance and large shot blasting quantity.

The shot blasting machine is driven by hydraulic motor. The adjustment of shot blasting amount can refer to the pressure gauge of hydraulic system.

(2) Front and rear seal chamber

After the workpiece is placed on the rotary table, it moves to the right with the rotary mechanism and the front sealing chamber, so that both ends of the steel pipe enter into the sealing chamber. In this way, the front and rear sealing chambers form a sealing system together with the steel pipe. Polyurethane sealing ring is used to seal the joint between the sealing chamber and steel pipe, which can effectively avoid the overflow of projectile and dust. The sealing chamber is welded with section steel and steel plate to ensure enough rigidity and strength. The top of the front sealing chamber is provided with an air outlet, and the strong suction force will suck the shot after shot blasting into the front sealing chamber and settle to the bottom of the chamber body, and enter into the shot collecting belt; meanwhile, the dust is sucked into the dust collector.

(3) Belt conveyor

The equipment uses belt conveyor to transport pellets. The new type of belt conveyor is designed according to the characteristics of a shot. The belt conveyor is composed of head pulley, tail pulley, upper idler, lower idler, conveyor belt, etc.

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