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In the process of cleaning, the steel structure parts or steel are sent to the casting area in the cleaning machine chamber by the adjustable speed conveying roller controlled by the electric. All the sides of the body are hit and rubbed by the strong and intensive bullets from different coordinate directions, so that the oxide skin, rust layer and dirt on it fall off quickly, and the steel surface will get a smooth surface with certain roughness Loading and unloading of workpieces on both sides of the outdoor inlet and outlet roller table. The shot and rust dust falling on the steel are purged by the purging device. The mixture of shot and dust is conveyed to the chamber funnel by the recovery screw, and collected in the lower part of the elevator by the vertical and horizontal screw conveyor, and then lifted to the separator on the upper part of the machine. The separated pure shot falls into the separator hopper for shot blasting recycling. Dust is generated during shot blasting and sent to the dedusting system by the exhaust pipe. The purified gas is discharged to the atmosphere, and the granular dust is captured and collected.
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1. Cleaning room
The cleaning room is a large cavity plate box type assembly welding structure, the inner wall of the room is lined with ZGMn13 wear-resistant protection plate, and the cleaning operation is carried out in the sealed cavity.
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2. Conveying roller table
It is divided into indoor conveying roller table and loading and unloading section conveying roller table.
The high chromium wear-resistant sheath and limit ring are used to protect the roller table and bear the bullet attack. The limit ring can make the workpiece run according to the predetermined position to prevent deviation and accidents.
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3. Hoist
It is mainly composed of upper and lower drive, cylinder, belt, hopper, etc.
The upper and lower pulleys of the same diameter of the elevator adopt rib plate, wheel plate and hub assembly and welding to form a polygon structure, so as to enhance the friction force, avoid slipping, and extend the service life of the belt.
The cover of the hoist is bent and formed, and the cover plate on the middle cover of the hoist can be opened to repair and replace the hopper and lap belt. Opening the cover plate on the lower shell of the elevator can remove the blockage of the bottom bullet.
Adjust the bolts on both sides of the upper shell of the elevator to drive the pull plate to move up and down to maintain the tightness of the lifting belt.
The upper and lower pulleys adopt the spherical ball bearing with square seat, which can be adjusted automatically when impacted by vibration and has good sealing performance.
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4. Separator
The screw conveyor is mainly composed of a reduction motor, a screw shaft and a screw shell.
It adopts the spherical ball bearing with square seat, which can adjust automatically when bearing the vibration and impact, and has good sealing performance.
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5. Shot conveying pipeline
The shot conveying pipeline has double shot control function. A ram is set above each gate to cut off the shot from the separator, which is convenient for maintenance of each shot blaster. The opening size of the ram can adjust the flow of the shot, and it can also open and close the number of gates according to the specifications of the cleaned workpiece, so as to save energy, reduce the wear of the machine and meet the production needs.
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6. Shot blasting machine
The single disc shot blasting machine has become a perfect high-level shot blasting machine in China. It is mainly composed of rotating mechanism, impeller, cover, directional sleeve, shot wheel, guard plate, etc. the impeller is made of Cr40 material and forged. The blade, directional sleeve, shot wheel and guard plate are all made of high chromium
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7. Purging device
The device adopts a high-pressure fan, and a plurality of groups of elastic nozzles with different angles are arranged in the auxiliary chamber part of the chamber body to purge and clean the remaining bullets on the workpiece surface.
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8. Inlet and outlet sealing
The sealing device for the inlet and outlet of the workpiece is made of rubber spring steel plate. In order to prevent the shot from splashing out of the cleaning room during shot blasting, multiple strengthened seals are set at the inlet and outlet of the workpiece, which are characterized by strong elasticity, long service life and good sealing effect.
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9. Dedusting system
Bag filter
It is mainly composed of bag filter, fan and dedusting pipeline. The dedusting efficiency can reach 99.5%.
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10. Electrical control
The electric control system adopts conventional control to realize the control of the whole machine, and adopts high-quality electrical components produced at home and abroad, which has the advantages of high reliability and convenient maintenance. The main electric circuit is protected by small circuit breakers and thermal relays for short circuit, phase loss and overload of each motor. It is also equipped with multiple emergency stop switches to facilitate emergency shutdown and prevent accident expansion.
A safety protection switch is set on each access door of the cleaning room and the cleaning room. When any access door is opened, the shot blasting machine cannot be started.
