If the rotary shot blasting machine is not properly operated during operation, it may cause equipment failure, reduced production efficiency and even serious safety accidents. The following are some common problems and consequences that may be caused by improper operation of the shot blasting machine:
1. Poor shot blasting effect
Problem manifestation:
The surface of the workpiece has not been completely cleaned, and there is rust, oxide scale, etc.
The surface roughness of the workpiece is uneven, and the expected shot blasting effect cannot be achieved.
Possible causes:
Failure or improper adjustment of the shot blasting machine: The injection direction, flow rate or speed of the shot blasting machine is incorrect, resulting in the shot material not being able to act evenly on the surface of the workpiece.
Shot material quality problem: The use of damaged or unqualified shot materials leads to poor cleaning effect.
Improper mesh belt running speed: The mesh belt is too fast or too slow, which affects the residence time of the workpiece in the shot blasting room, resulting in unclean cleaning.
Consequences:
The surface quality of the product cannot meet the requirements, affecting the effect of subsequent processing or surface coating.
In severe cases, it may cause the production line to stagnate, increase rework and losses.
2. Equipment damage or excessive wear
Problem manifestation:
Equipment parts are worn or damaged prematurely, such as shot blasting blades, motors, reducers, etc.
The shot recovery system or shot blasting room is blocked, affecting the normal operation of the equipment.
Possible causes:
Use of inappropriate shot: If the quality of the shot is poor, the particles are too large or there are impurities, it will increase the wear of equipment parts.
Improper setting of operating parameters: If the speed of the shot blasting machine is too high or the shot flow rate is too large, it will accelerate the wear of equipment parts.
Untimely cleaning: The shot blasting room, recovery system, etc. are not cleaned in time, dust and shot accumulation will cause system blockage or equipment overload.
Consequences:
Increased equipment maintenance costs, extended downtime, and affected production cycles.
Severe damage to equipment parts may result in high replacement costs and even affect the long-term service life of the equipment.
3. Safety accidents
Problem manifestation:
Operator injuries, such as eye injuries, injuries from flying shots or equipment parts.
Fire, explosion or electrical failure of the equipment.
Possible causes:
Incomplete safety protection facilities: Failure to wear appropriate safety protection equipment (such as protective glasses, earmuffs, gloves, etc.) during operation, resulting in pellet splashing or noise damage.
Improper operation: Entering the working area while the equipment is running, or the operator failing to comply with the operating procedures, resulting in safety accidents.
Failure to handle equipment failure in time: The equipment has electrical or mechanical failures, and the operator fails to stop the machine for inspection in time, which may cause more serious safety problems.
Consequences:
The operator may suffer injuries to the eyes, skin and other parts, or even more serious injury accidents.
After equipment damage or accidents occur, the production line may be shut down for a long time, resulting in production losses.
Enterprises face safety responsibilities and legal risks, affecting their reputation.
4. Electrical system failure
Problem manifestations:
The control panel cannot respond, the motor cannot start or stop, and the equipment cannot work properly.
Electrical components burn out or the circuit is short-circuited, causing the equipment to stop running.
Possible causes:
Electrical component failure: Improper operation or aging of the electrical system causes failures in electrical components such as switches, contactors, and relays.
Poor electrical circuit connection: poor electrical circuit contact, short circuit or unstable power supply, resulting in the equipment being unable to start or operating abnormally.
Overload operation: The equipment is overloaded, causing the motor and electrical system to overload, causing electrical failure.
Consequences:
The equipment is shut down, affecting the production progress, and even the electrical components need to be replaced, increasing the maintenance cost.
Severe electrical failures may cause fires or electrical accidents, posing safety hazards.
5. Improper use of shot
Problem manifestations:
The shot is consumed too quickly, resulting in frequent replacement of shot.
Shot accumulation or blockage affects the normal operation of the equipment.
Possible causes:
Poor shot quality: Using damaged, damp or non-compliant shot results in poor cleaning effect and increased equipment wear.
Improper storage of shot: Shots are stored in a humid environment, and become unsuitable for use after absorbing moisture, which may cause equipment blockage.
Shot recovery system is not cleaned: The shot recovery system is not cleaned in time, resulting in shot blockage or stagnation, affecting the shot blasting effect.
Consequences:
Shot waste increases production costs.
Shot material blockage or the use of unqualified shot materials will increase the frequency of equipment failure and reduce the service life of the equipment.
6. Shot material recovery system blockage
Problem manifestation:
The shot material recovery system does not operate smoothly, the recovery efficiency is low, and even blockage occurs.
Shot materials accumulate in the shot blasting room or recovery pipe, causing equipment shutdown.
Possible causes:
The recovery system is not cleaned in time: the accumulation of shot materials and dust accumulation leads to blockage of the recovery system, and the shot materials cannot flow back smoothly.
Improper design of the recovery pipe: The layout of the recovery pipe is unreasonable, resulting in low shot material recovery efficiency and blockage.
Consequences:
The shot material recovery efficiency is low, affecting production efficiency.
When the recovery system is seriously blocked, it may cause equipment shutdown and increase maintenance costs.
7. Equipment overload operation
Problem manifestation:
The equipment runs under high load, and abnormal vibration, heating and other phenomena occur.
The motor and electrical system are overloaded and automatically shut down for protection.
Possible causes:
Improper load control: The equipment has been running under high load for a long time, exceeding the design load range.
The mesh belt speed is too fast or too slow: the mesh belt running speed is improperly set, resulting in insufficient or too long workpiece processing time, affecting the processing effect.
Too much or too little shot material: Improper shot material flow control leads to equipment overload or low working efficiency.
Consequences:
Overload operation of the equipment will cause overheating, increased wear and even failure of the motor and other components.
It is necessary to stop the machine for maintenance, increasing downtime and maintenance costs.
Summary
Improper operation of the shot blasting machine may cause equipment failure, reduced production efficiency, and even safety accidents. Therefore, operators must strictly abide by the operating procedures, regularly inspect and maintain the equipment, and ensure the normal operation and safety of the equipment. At the same time, perfect safety protection measures, reasonable operating parameters and timely troubleshooting can effectively avoid these problems and ensure smooth production.