First distinguish the tasks of the two paths
Abrasive circulation normally includes collection, conveying, lifting, separation, storage and feeding, returning reusable media to the blast wheels. The dust-collection system extracts dust-laden air from designated points, treats it and discharges or disposes of it as agreed. Recovered abrasive and filtered dust are different tasks; fan power alone does not prove that the auxiliary system is complete.
Actual construction varies by model and project. The supply documents should indicate each device, connection location, maintenance direction and control interface, so that the site knows what other equipment besides the main machine requires foundation, space, power supply and pipelines.
An installation interface list is more useful than a main machine outline diagram
| interface | Supply plan needs to be explained | Need to confirm on site |
|---|---|---|
| Collection and transportation | Structure, location and whether pits are involved | Ground conditions, maintenance and clearance spaces |
| Lift separation | Equipment height, support and removal directions | Factory clearance and installation and hoisting paths |
| Dust removal and air ducts | Supply boundaries, connection points and pipeline conditions | Layout routes, external facilities and emission requirements |
| Dust collection waste | Collection form, removal method and maintenance cycle basis | Transshipment, storage and compliance disposal arrangements |
| Energy Control | Final load, control interlocking and wiring range | Power supply, gas source and division of responsibilities |
Separate diagnosis of abrasive and dust abnormalities
The decrease in cleaning effect may come from insufficient abrasive supply, changes in separation status, or from incoming materials or coverage problems. Dust, dust leakage and abnormal material accumulation in the machine need to be investigated along the corresponding paths. Don't cover up the root cause with constant refilling of abrasive or simply raising the fan setting.
| phenomenon | Check direction | Verification after processing |
|---|---|---|
| Unstable abrasive supply | Recovery transportation, material level, blockage and separation status | Review appearance and actual operation after supply is restored |
| The available abrasive is discharged with the waste material | Separation settings, working mixtures and operating conditions | Check waste composition and abrasive status |
| Dust leakage at door or joint | Seal, duct, filtration and exhaust system status | Confirm leak elimination and verify relevant readings |
| The filtering status continues to be abnormal. | Check the pressure difference, dust cleaning and filter material according to the manual | Use the manufacturer's permission conditions to review and not just reset the alarm. |
| Repeated accumulation of materials in the recovery area | Conveying failure, foreign objects or changes in material properties | Eliminate the cause and check adjacent components |
Maintenance based on manual and status
Material levels, equipment readings, external leaks, abnormal sounds and operating alarms can be recorded at permitted inspection locations on a daily basis. For maintenance of the interior of the inspection port, the movement mechanism and the electrical system, the machine should be shut down and the power supply, air source and possible energy storage should be isolated as required to confirm that the equipment will not start accidentally.
Arrange maintenance of filter media, seals, wear-resistant and transmission parts according to equipment documents and actual status, and do not use unconfirmed unified replacement hours. When a fault occurs repeatedly, the working conditions, alarms, photos and performed operations should be retained to facilitate locating the cause, rather than just cleaning up the accumulated material each time.
Materials and emission conditions should be specified at the planning stage
Dust characteristics are related to incoming materials, old coatings and contaminants, and dust removal and waste disposal must be suitable for the actual process and installation site requirements. A system originally selected for a certain carbon steel job cannot be changed to handle other materials or specially coated workpieces without evaluation.
Discharge locations, pipeline conditions, dust collection transfer and maintenance accessibility should be clarified in advance on site. If local or specific dust requirements require additional protection measures, they should be implemented into the system by corresponding professional design. A description of "equipped with a dust collector" cannot be regarded as proof of full suitability.
Executable maintenance information should be available upon delivery
- Final assembly layout, material and air flow paths, energy and control interface lists.
- Operation and maintenance files, checkpoints and allowable operating conditions for each component.
- Wear parts models, recommended spare parts and replacement parts identification methods.
- Outage isolation, exception reporting, and recovery operations processes.
- The baseline state recorded during commissioning and the representative workpiece surface results.
- Clarify which maintenance should be performed on site, which maintenance personnel need to be contacted, and which fault information should be prepared.
These dates show the proposed editorial schedule for this preview; they do not represent previous publication.